• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    rope terminal assembly and an elevator. the invention relates to a rope terminal assembly (2) of an elevator fastening an elevator rope (r) to a fastening base such as an elevator unit (1, cw), the elevator being suitable for transporting passengers and/ or goods, the assembly of which (2) comprises an elevator rope (r), whose width is greater than its thickness in a rope transverse direction, with at least one end having an end face (r'), an end block of rope (3) attached to the rope end, one or more wedge elements (8, 8'), a wedge housing (4), where the terminal assembly (2) comprises a rope slack through which the rope of elevator (r) passes and the wedge element (8, 8') is arranged to wed between the rope (r) and the wedge housing (4) thereby locking the elevator rope (r) in the gap, and the rope end block (3) is fixed on the end face side (r') of the elevator rope (r) with respect to the wedge element (8, 8') and an elevator.
    公开号:BR102013032986B1
    申请号:R102013032986-0
    申请日:2013-12-20
    公开日:2021-07-20
    发明作者:Antti IKONEN；Jani LUOMA
    申请人:Kone Corporation；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [0001] The object of the invention is a rope terminal assembly of an elevator, the elevator being suitable for transporting passengers and/or goods, and an elevator. Background of the invention
    [0002] In elevator systems, elevator ropes are used to suspend and/or move an elevator car, a counterweight, or both. Elevator ropes are generally made by braiding metallic strands or filaments and have a substantially round cross-sectional shape. A problem with metallic ropes is, due to the material properties of the metal, that they have high weight and great thickness in relation to their tensile stiffness and tensile strength.
    [0003] Lightweight suspension ropes are also known, where the width of the suspension rope for a lifting machine is greater than its thickness in a transverse direction of the rope. The rope comprises a load-bearing part made of composite materials, which composite materials comprise non-metallic reinforcing fibers in polymer matrix material. The structure and choice of material make it possible to obtain light weight elevator ropes with a fine construction in the bending direction, a good tensile stiffness and tensile strength in the longitudinal direction. Furthermore, the color structure remains substantially unchanged in bending, which contributes to a long service life.
    [0004] Various arrangements have been put forward to provide tools for attaching elevator ropes to the elevator units. With non-metallic elevator ropes, particularly with elevator ropes made of fiber reinforced polymer composite materials, it is challenging to mechanically fasten with the elevator unit without causing damage to the elevator rope. Furthermore, the installation process is laborious and slow.
    [0005] The development of damage detection of fiber reinforced polymer composite materials during service life is a key issue in many practical applications of elevator technology. Many of these non-destructive tests involve periodic inspection of composite components by means of expensive equipment. Thus, there is a growing need for a cost-effective and safe hoist rope terminal assembly to connect to hoist rope condition monitoring elements that integrate sensors enabling on-site monitoring of rope damage. Brief description of the invention
    [0006] The aim of the invention is to introduce an improved rope terminal assembly and an elevator. The aim of the invention is, among other things, to solve disadvantages of known solutions and problems discussed later in the description of the invention. It is also a goal to enable a cost-effective and safe rope terminal assembly with a faster installation process. The object of the invention is to provide rope end assembly with improved installation quality for elevator rope comprising polymer composite materials.
    [0007] Arrangements are presented which, among other things, facilitate simple, safe and efficient rope terminal assembly with respect to damage detection of non-metallic load-bearing parts in elevator ropes. Furthermore, modalities are presented, where the rope terminal assembly allows monitoring of the rope condition where good and safe working position and good ergonomics can be ensured. Furthermore, the modalities are presented, where it is possible to monitor the condition of the ropes in the safe place, throughout the life of the elevator.
    [0008] A new rope terminal assembly for light weight non-metallic ropes of an elevator is presented. In a preferred embodiment an elevator rope lug assembly is used to secure an elevator rope to a fastening base such as an elevator unit. The end assembly comprises a rope slack through which the elevator rope passes and the wedge element is arranged to wed between the rope and the wedge housing thereby locking the elevator rope in the slack, and the end block of rope is fixed on the end face side of the elevator rope with respect to the wedge element.
    [0009] Consequently also the safety of the rope terminal assembly is improved. The rope end block is used as a means of securing the rope terminal assembly. If the elevator rope slips in the rope slack of the rope end assembly, the rope end block pushes the wedge element such that the wedge element is arranged to wed more tightly between the rope and the wedge housing , thereby locking the elevator rope in the slack.
    [00010] In a preferred embodiment, elevator ropes with load-bearing parts of carbon fiber reinforced polymer composite material are attached to the elevator unit with the rope terminal assembly and electrical rope condition monitoring elements, are connected to the lanyard through the lanyard end block of the lanyard assembly. For unidirectional carbon fiber reinforced polymer composites, the longitudinal electrical resistance of unidirectional fiber is much lower than the transverse resistance, and damage to the composite material can be detected by measuring one or the other. Electrical resistance is a good damage sensor for epoxy/carbon laminates, especially for fiber break detection.
    [00011] In a preferred embodiment the rope terminal assembly is used in elevators with counterweight, however it is also applicable in elevators without counterweight. Furthermore, it can also be used in combination with other lifting machines, for example as a crane suspension and/or transmission rope. The string's low weight provides an advantage especially in acceleration situations, because the energy required by changes in the string's velocity depends on its mass. The low weight further provides an advantage in rope systems that require separate trim cords, as the need for trim cords is reduced or completely eliminated. The low weight also allows for easier handling of the strings.
    [00012] In a preferred embodiment of an elevator the rope terminal assembly according to the invention is used to fasten an elevator rope to a fastening base such as the elevator unit or the end of an elevator shaft rope. The elevator was arranged to comprise an elevator shaft cable, and a mobile elevator unit in the elevator shaft cable, the elevator unit being an elevator car for transporting passengers and/or goods. The elevator arrangement may also comprise other mobile elevator units such as the counterweight, as shown. The elevator comprises lifting elements comprising a lifting device, one or more suspension and/or transmission ropes, each rope comprising one or more, preferably at least four load-bearing parts, secured with the rope terminal assembly by the less in an elevator unit. In a preferred embodiment each rope is guided to pass over the traction sheave rotated by the elevator lifting machine and one or more diverter pulleys. As the lifting machine rotates, the traction sheave at the same time moves the elevator car and the counterweight in the upward direction and in the downward direction, respectively, due to friction. Furthermore, in tall buildings and in high-speed elevators there are one or more compensating ropes, each compensating rope being attached at its first end to the lower end of the counterweight and at its second end to the bottom of the elevator car, to the cable. from the car or to the car itself. The compensating rope is kept taut, for example, by means of compensating pulleys, under which the compensating wheel passes around and which pulleys are supported by a support structure at the base of the rope of the elevator elevator shaft. A displacement cable intended for supplying elevator car electricity and/or for data traffic is attached at its first end to the elevator car, for example, to the bottom of the elevator car, and at its second end to a point connection point on the elevator shaft cable wall, which connection point is typically at the midpoint or above the midpoint of the elevator shaft cable height direction.
    [00013] Preferably the elevator comprises rope condition monitoring elements comprising a rope condition monitoring device, which monitors and transmits an electrical signal from the elevator rope, at predefined time intervals, preferably at least once per second , for an elevator controller. If an error signal is transmitted from the lanyard condition monitoring elements to an elevator controller, the elevator operation is altered or the elevator is taken out of service. Preferably, the rope condition monitoring elements comprise a current source, a voltage measuring device, a microcontroller, and a display for monitoring the condition of the ropes. Preferably, the rope condition monitoring elements are used to measure the electrical resistance between the first point and the second point of the elevator rope the first time during elevator installation and the second time when the elevator is used to transport passenger and/ or goods. Preferably, the first point and the second point are points of a non-metallic load-bearing part of the elevator rope, or points of several electrically connected non-metallic load-bearing parts of the elevator rope.
    [00014] In a preferred embodiment the rope end block has a first part on a first side of the elevator rope and a second part on a second side of the elevator rope. Preferably, the rope end block extends over the end face of the elevator rope and is a one-piece structure where the first part and a second part of the rope end block are connected to a middle part of the rope end block. rope.
    [00015] Preferably, the rope end block is made of plastic or some other electrically non-conductive material. Preferably, the rope end block is a one-piece structure made of plastic, preferably thermoplastic polymer, for example polyethylene, polypropylene, polystyrene or polyvinyl chloride, or thermoset polymer, for example polyester, polyurethanes or epoxy resins . The rope end block can be reinforced by glass, aramid fibers or carbon, and the reinforcing fibers can be cut short or can be continuous fibers. Consequently, the mechanical properties, particularly strength and stiffness, specific to the rope end-block 3 are improved. The rope end block is preferably manufactured by extrusion, pultrusion, injection molding, blow molding, thermoforming, rotational molding, casting, foaming, compression molding or transfer molding, for example. In this way, the manufacture of rope end block parts is fast and manufacturing costs are lower. Rope end block parts can also be manufactured from recycled plastic or other recycled materials.
    [00016] Preferably the rope end block comprises a first frame part fixed to the elevator rope end and a second frame part fixed to the wedge element. Preferably, but not necessary, the rope end block comprises an elastic portion between the first and second frame parts, which elastic part allows relative movement of the first and second frame parts of the rope end block. The elastic part is advantageously located outside the second frame part of the rope end block attached to the wedge element.
    [00017] Preferably, the rope end block is secured to the elevator rope end with fasteners. Thereby, it is possible for the fastening elements to pass through the openings in the first frame part of the rope end block. The fastening elements can advantageously be made of metal or some other electrically conductive material. The fastening elements are advantageously screws or bolts with nuts. Fastening to the rope can be done by drilling holes in the rope and fastening with screws or bolts. The elasticity of the rope end block can also be arranged by sizing and designing the openings of the first frame part of the rope end block to have an oval shape, for example.
    [00018] Preferably, the rope end block is fixed to a wedge element with fastening elements. Thereby, it is possible for the fastening elements to pass through the openings in the second frame part of the rope end block. The fastening elements can advantageously be made of metal or some other mechanically suitable material. The fastening elements are advantageously screws or bolts. Attachment to the wedge element can be done by drilling holes in the wedge element and securing with screws or bolts.
    [00019] Preferably, the rope end block comprises one or more short circuit elements fixed to the rope end block with fastening elements. Thereby, it is possible for the fastening elements to pass through the openings in the short circuit elements. The short circuit elements as well as the fastening elements are advantageously made of metal or some other suitable electrically conductive material. The fastening elements are advantageously screws or bolts. Attachment to the rope is done by drilling holes in the rope and securing with screws or bolts. The fastening elements for fastening short circuit elements are advantageously the same screws or bolts used for fastening the rope-to-rope end-block. Preferably, the short circuit elements are metallic short circuit boards.
    [00020] In a preferred embodiment, an elevator rope end assembly comprises an elevator rope, the width of which is greater than its thickness in a transverse rope direction, with at least one end having an end face, a rope end block attached to the rope end, two wedge elements, and a wedge housing. The rope end assembly comprises a rope slack through which the elevator rope passes and the wedge element is arranged to wed between the rope and the wedge housing, preferably between the rope and the support sides of the wedge housing. , thereby locking the elevator rope in the slack, and the rope end block is fixed to the end face side of the elevator rope with respect to the wedge element.
    [00021] Preferably the wedge element is an elongated element comprising a smooth contact surface part and a patterned or rough contact surface part, the smooth contact surface part being disposed against the wedge housing element and the patterned or rough contact surface being laid against the elevator rope surface. The wedge element also comprises a space for the rope end block at the first end of the wedge element. Thereby, it is possible for the fastening elements of the rope end block to be fixed to the space of the wedge element. The space for the rope end block is advantageously on the side of the patterned or rough contact surface part of the first end of the wedge element and comprises a threaded opening for the fastening elements. The wedge element is advantageously made of metal or some other mechanically suitable material.
    [00022] Preferably, the wedge housing comprises two elongated side elements and two elongated wedge support elements, the side elements and wedge support elements being fixed together preferably by welding or glue, for example from the side support elements and wedge together. The side elements comprise holes and the wedge support elements comprise plugs or vice versa on their sides which fit together to bring the sides together. Preferably, the wedge housing element comprises one or more adjustable locking elements which are arranged to lock the wedge elements into position in the wedge housing. It is possible for the locking means to pass through the openings in the wedge housing support elements. The wedge housing side elements as well as the support elements are advantageously made of metal or some other mechanically suitable material. The locking means are advantageously screws or bolts. The locking of the wedge elements is done by fastening with screws or bolts. The rope end assembly is secured to the clamping base with a clamping rod being secured to the side wedge housing elements with clamping elements. It is possible for the clamping elements of the clamping rod to pass through the openings in the side wedge housing elements.
    [00023] In a preferred embodiment of the rope end assembly of a light rope elevator comprises one or more, preferably at least four, unidirectional carbon fiber reinforced polymer load-bearing portions covered with polyurethane coating. In the case of four load-bearing parts, the string is electrically modeled as four resistors. The preferred solution is to measure a string as a single resistance. In this way, measuring arrangements are kept simple and the method is also safer, because the number of wires and connections is minimized. With this method simple and safe solutions to short-circuit load-bearing parts of carbon fiber reinforced polymer, and connect the measuring wires to the rope, preferably by male screws screwed between the load-bearing parts in such a way that the Screw acts as an electrically conductive path between adjacent load-bearing parts are used. At the counterweight end of the rope, preferably three screws are used to short-circuit all the filaments. At the carriage end of the rope, preferably two outermost load-bearing parts are connected together, and measuring wires are inserted under these two screws with a split ring connector. With this arrangement, all carbon fiber reinforced polymer load-bearing parts are monitored and the entire string is seen as a single resistor.
    [00024] In a preferred embodiment the electrical resistance between a first point and a second point of the elevator suspension and/or transmission rope is measured for the first time, and thereafter a threshold value is determined based on the measurement and thereafter the elevator is used to transport passengers and/or goods, and then electrical resistance between the first point and the second point of the suspension and/or transmission ropes is measured for the second time, and then the measurement results for the second time are compared with the threshold value , and if the measurement for the second time meets the threshold value, predetermined actions are performed.
    [00025] In one embodiment of a rope terminal assembly, an elevator is used to fasten an elevator rope to a fastening base such as an elevator unit, which assembly comprises: an elevator rope whose width is greater than its thickness in a chord transverse direction, with at least one end having an end face, a chord end block attached to the chord end, a wedge element, and a wedge housing. The rope end assembly comprises a rope slack through which the elevator rope passes and the wedge element is arranged to wed between the rope and the wedge housing, preferably between the rope and the support side of the wedge housing , thereby locking the elevator rope in the slack, and the rope end block is secured to an end face side of the elevator rope with respect to the wedge element.
    [00026] In a preferred embodiment of the invention, at least one rope, but preferably a number of suspension and/or transmission ropes is constructed such that the width of the rope is greater than its thickness in a transverse direction of the rope and adapted to support and move an elevator car, the rope comprising a load-bearing part made of composite material, which composite material comprises reinforcing fibers, preferably consisting of unidirectional carbon fiber, in a polymer matrix. The suspension rope is most preferably fixed at one end to the elevator car and at the other end to a counterweight, but it is applicable for use in elevators without counterweight as well. Although the figures only show elevators with a suspension ratio of 1:1, the rope described is also applicable for use as a suspension rope in an elevator with a suspension ratio of 1:2. The rope is particularly well suited for use as a suspension rope in an elevator having a large lift height, preferably an elevator having a lift height of more than 100 meters, more preferably 150-800 meters. The defined chord can also be used to implement a new elevator without a compensating chord, or converting an old elevator to one without a compensating chord.
    [00027] It is obvious to a person skilled in the art that the invention is not exclusively limited to the embodiments described above, in which the invention has been described by way of example, but that many different variations and embodiments of the invention are possible. Thus it is obvious that the described ropes can be provided with a toothed surface or some other type of patterned surface to produce positive contact with the traction sheave. It is also obvious that rectangular composite load-bearing parts may comprise more rigorously rounded edges than those illustrated or unrounded edges. Similarly, the polymer layer of the strings may comprise more rigorously rounded edges/corners than those illustrated or non-rounded edges/corners. It is similarly obvious that the load-bearing part/parts in the embodiments can be arranged to cover most of the cross-section of the rope. In that case, the pulley-like polymer layer surrounding the load-bearing part/parts is made thinner compared to the thickness of the load-bearing part, in the direction of the thickness of the rope. It is similarly obvious that in combination with the represented solutions, it is possible to use belts of other types than those shown. It is similarly obvious that both carbon fiber and glass fiber can be used in the same composite part, if necessary. It is similarly obvious that the thickness of the polymer layer may differ from that described. It is similarly obvious that the shear resistant part could be used as an additional component with any other rope structure shown in this order. It is similarly obvious that the matrix polymer in which the reinforcing fibers are distributed may comprise - mixed into the basic matrix polymer, such as epoxy - auxiliary materials such as, for example, reinforcements, fillers, colors , flame retardants, stabilizers or corresponding agents. It is similarly obvious that, although the polymer matrix preferably does not consist of elastomer, the invention can also be used using an elastomer matrix. It is also obvious that the fibers do not necessarily need to be round in cross section, but may have some other shape in cross section. It is additionally obvious that auxiliary materials, such as, for example, reinforcements, fillers, colors, flame retardants, stabilizers or corresponding agents, can be mixed into the basic polymer of the layer, for example, into the polyurethane. It is similarly obvious that the invention can also be applied to elevators designed for lifting heights other than those considered above.
    [00028] The elevator as described elsewhere above is preferably, but not necessarily, installed inside a building. The car is preferably moving vertically. The cart is preferably arranged to serve two or more platforms. The car preferably responds to platform and/or destination command calls from inside the car in order to serve people on the platform(s) and/or inside the forklift. Preferably, the car has an interior space suitable for receiving a passenger or passengers, and the car may be provided with a door to form a closed interior space. Brief description of the drawings
    [00029] In the following, the present invention will be described in more detail by way of example and with reference to the attached drawings, in which: Figure 1 schematically illustrates an elevator according to an embodiment of the invention; Figure 2a illustrates an embodiment Figure 2b illustrates a first side view of a preferred embodiment of the rope end block; Figure 2c illustrates a second side view of a preferred embodiment of the rope end block; Figure 2d illustrates a preferred embodiment of the rope end block; Figure 3a illustrates a side view of a preferred embodiment of the rope end assembly with two wedge elements; Figure 3b illustrates a preferred embodiment of the rope end assembly with two wedge elements. Figure 3c illustrates a preferred embodiment of the rope end assembly wedge housing; Figure 4 schematically illustrates one embodiment of the tether assembly. rope terminal with a wedge element; Figure 5 schematically illustrates a cross section of one embodiment of an elevator rope; Figure 6 illustrates an electrical model of the elevator rope condition monitoring arrangement connected to the rope terminal assembly through the rope end block. Detailed Description
    [00030] In figure 1 a preferred embodiment of an elevator is illustrated where the elevator rope R, C is connected to the elevator unit 1, CW with a rope terminal assembly 2 according to the invention. The elevator has been arranged to comprise an elevator shaft rope S, and an elevator unit 1 movable in the elevator shaft rope S, the elevator unit being an elevator car 1 for transporting passengers and/or goods. The elevator arrangement may also comprise other mobile elevator units such as a CW counterweight, as shown. The elevator comprises a lifting element comprising a lifting device M, a rope comprising one or more suspension and transmission ropes R, each rope R comprising one or more, preferably at least four, load-bearing parts 12a, 12b, 12c, 12d, attached to the rope terminal assembly 2 on at least one elevator unit 1, CW. Each rope R is guided to pass over the traction sheave 6 rotated by the elevator lifting machine M and one or more deflection pulleys 5. As the lifting machine M rotates, the traction sheave 6 at the same time moves the elevator car 1 and the CW counterweight in the up direction and down direction, respectively, due to friction. In addition, in tall buildings and in wing-speed elevators there is a second rope comprising one or more C-compensation ropes, each C-compensation rope being suspended to hang from its first end to the lower end of the CW counterweight and its second end to the bottom of the elevator car 1, to the car cable or to the car itself. The compensating rope C is kept taut, for example, by means of compensating pulleys 7, under which the compensating rope C passes around and whose pulleys 7 are connected to a support structure at the base of the elevator shaft rope. of elevator S, whose support structure is not, however, shown in the figure. A displacement cable T intended for the electricity supply of the elevator car and/or for data traffic is suspended to hang at its first end to the elevator car 1, for example, to the bottom of the elevator car 1, and its second end to a connection point on the S elevator shaft cable wall, which connection point is typically at the midpoint point or above the midpoint of the elevator shaft S cable height direction.
    [00031] The elevator comprises rope condition monitoring elements comprising a rope condition monitoring device, which monitors and transmits an electrical signal from the elevator rope R, C, at predefined time intervals, preferably at least once per second, for an elevator controller. If an error signal is transmitted from the lanyard condition monitoring elements to an elevator controller, the elevator operation is changed or the elevator is taken out of service. Preferably, the rope condition monitoring element is used to measure electrical resistance between a first point and a second point of the elevator rope R, C for the first time during elevator installation and second time when the elevator is used to transport passenger and /or goods. Preferably the first point and second point are points of a non-metallic load-bearing part 12a, 12b, 12c, 12d of the elevator rope R, C, or points of several electrically connected non-metallic load-bearing parts 12a, 12b, 12c, 12d of the elevator rope R, C.
    [00032] Figure 2a, Figure 2b, Figure 2c, and Figure 2d illustrate a preferred embodiment of the rope end block 3 having the first part 3' on a first side of the elevator rope and a second part 3" on a second side of the elevator rope. Preferably, the rope end block 3 extends over the end face R' of the elevator rope. Rope End Block 3 is a one-piece structure where the first 3’ part and a second 3” part of Rope End Block 3 are connected to a 3d middle part of Rope End Block 3.
    [00033] Rope end block 3 manufactured of plastic or some other electrically non-conductive material. Preferably, the rope end block 3 is a one-piece structure made of plastic, preferably thermoplastic polymer or thermoset polymer. The rope end block 3 can be reinforced by short cut non-metallic reinforcing fibers or it can be continuous fibres. Consequently the mechanical properties, particularly strength and stiffness specific to the rope end block 3 are improved. Rope end block 3 is preferably manufactured by extrusion, pultrusion, injection molding, blow molding, thermoforming, rotational molding, casting, foaming, compression molding or transfer molding, for example. Thereby the fabrication of Rope 3 End Block Parts is fast and the fabrication costs are lower. Rope End Block 3 parts can also be manufactured from recycled plastic or other recycled materials.
    [00034] Preferably, the rope end block 3 comprises a first frame part 3c fixed to the elevator rope end and a second frame part 3a fixed to the wedge element 8, 8'. Preferably, but not necessary, the rope end block 3 comprises an elastic part 3b between the first and second frame parts which elastic part 3b allows relative movement of the first and second frame parts of the rope end block 3. The part Elastic band 3b is advantageously located outside the second frame part 3a of the rope end block 3 fixed to the wedge element 8, 8'.
    [00035] Preferably, the rope end block 3 is fixed to the elevator rope end R with fastening elements. Thereby, it is possible for the fastening elements to pass through the openings in the first frame part 3c of the rope end block 3. The fastening elements can advantageously be made of metal or some other suitable electrically conductive material. The fastening elements are advantageously screws or bolts with nuts. Attachment to the rope can be done by drilling holes in the rope and securing with screws or bolts. The elasticity of the rope end block 3 can also be arranged by sizing and designing the openings of the first frame part 3c of the rope end block 3 to have an oval shape, for example.
    [00036] The rope end block 3 is fastened to a wedge element 8, 8' with fastening elements 10, 10'. Thereby, it is possible for the fastening elements 10, 10' to pass through the openings in the second frame part 3a of the rope end block 3. The fastening elements 10, 10' may advantageously be made of metal or some other mechanically suitable material. The fastening elements 10, 10' are advantageously screws or bolts. Attachment to the wedge element can be made by drilling holes in the wedge element 8, 8' and securing with screws or bolts.
    [00037] In a preferred embodiment the rope end block 3 comprises one or more short circuit elements fixed to the rope end block 3 with fastening elements. Thereby it is possible for the fastening elements to pass through the openings in the short circuit elements. The short circuit elements such as short circuit boards as well as the fastening elements are advantageously made of metal or some other suitable electrically conductive material. The fastening elements are advantageously screws or bolts. Attachment to the rope is done by drilling holes in the rope and securing with screws or bolts. The fastening elements for fastening short circuit elements are advantageously the same screws or bolts used to fasten the rope end-block 3 to the rope.
    [00038] Figure 3a and Figure 3b illustrate a preferred embodiment of the rope terminal assembly 2 with two wedge elements 8, 8' and Figure 3c illustrates a preferred embodiment of the wedge housing 4 of the rope terminal assembly 2 A preferred embodiment of an elevator rope terminal assembly 2 attaching an elevator rope R to a fastening base such as an elevator unit 1, CW, comprises an elevator rope R, the width of which is greater than its thickness in a transverse direction of the rope, with at least one end having an end face R', a rope end block 3 attached to the rope end, two wedge elements 8, 8', a wedge housing 4. of rope end 2 comprises a rope slack through which the elevator rope R passes and the wedge element 8, 8' is arranged to wed between the rope R and the wedge housing 4, preferably between the rope R and the support sides 4b, 4b' of cun housing ha 4, thereby locking the elevator rope in the slack, and the rope end block 3 is fixed to the end face side R' of the elevator rope R with respect to the wedge element 8, 8'.
    [00039] Preferably, the wedge element 8, 8' is an elongated element comprising a smooth contact surface part 8b, 8b' and a patterned or rough contact surface part 8a, 8a', the contact surface part smooth 8b, 8b' being arranged against the wedge housing 4 and the patterned or rough contact surface 8a, 8a' being arranged against the elevator rope surface R. the wedge element 8, 8' also comprises a space for the rope end block 3 at the first end of the wedge element 8, 8'. Thereby it is possible for the fastening elements 10, 10' of the rope end block 3 to be fastened to the space of the wedge element 8, 8'. The space for the rope end block 3 is advantageously on the side of the patterned or rough contact surface part 8a, 8a' of the first end of the wedge element 8, 8' and comprises a threaded opening for the fastening elements. The wedge element 8, 8' is advantageously made of metal or some other mechanically suitable material.
    [00040] The wedge housing 4 comprises two elongated side elements 4a, 4a' and two elongated wedge support elements 4b, 4b', the side elements 4a, 4a' and the wedge support elements 4b, 4b' being fixed together by welding or gluing the wedge and side support elements together. The side elements 4a, 4a' comprise holes and the wedge support elements 4b, 4b' comprise plugs on their sides that snap together to bring the sides together. Preferably, the wedge housing 4 comprises one or more adjustable locking elements 9, 9' which are arranged to lock the wedge elements 8, 8' in their position in the wedge housing element 4. It is possible for the locking means 9, 9' pass through the openings in the support elements 4b, 4b' of the wedge housing element 4. The side elements of the wedge housing 4a, 4a' as well as the support elements 4b, 4b' are advantageously made of metal or some other mechanically suitable material. The locking means 9, 9' are advantageously screws or bolts. The locking of the wedge elements is done by fixing with screws or bolts. The rope end assembly 2 is fixed to the fixing base with a fixing rod 11 being fixed to the side elements 4a, 4a' with fixing elements. It is possible for the fastening elements of the fastening rod 11 to pass through the openings in the side elements 4a, 4a' of the wedge housing 4.
    [00041] Figure 4 schematically illustrates an embodiment of an elevator rope terminal assembly attaching an elevator rope R to an elevator unit, which assembly comprises an elevator rope R, whose width is greater than its thickness in a chord transverse direction, with at least one end having an end face R', a chord end block 3 attached to the chord end R', a wedge element 8, and a wedge housing 4. rope end 2 comprises a rope slack through which the elevator rope R passes and the wedge element 8 is arranged to wed between the rope R and the wedge housing 4, preferably between the rope R and the support side of the wedge housing 4, thereby locking the elevator rope R in the gap, and the rope end block 3 is spun on the end face R' side of the elevator rope R with respect to the wedge element 8. It is obvious that wedge housing 4 can be constructed. used as a one-piece structure, a two-piece structure, a three-piece structure, or a structure being constructed of several elements that form the chord slack for the chord and support for one or more wedge elements.
    [00042] Figure 5 illustrates a preferred embodiment of a rope cross section R as described with respect to one of Figures 1, 3 and 4 used as suspension rope and/or transmission R of an elevator, particularly a passenger elevator. In use according to the invention, at least one chord R, but preferably a number of chords R is constructed such that the width of the chord is greater than its thickness in a transverse direction of the chord R and adapted to support and move an elevator car, the rope R comprising a load-bearing part 12a, 12b, 12c, 12d made of composite material, which composite material comprises reinforcing fibers f, consisting of unidirectional untwisted carbon fibers, in a matrix of polymer oriented in the string length direction. The suspension rope R is most preferably fixed at one end to the elevator car 1 and at the other end to a CW counterweight, but it is applicable for use in elevators without counterweight as well. Although the figures only show elevators with a suspension ratio of 1:1, the R rope described is also applicable for use as an R suspension rope in an elevator with a suspension ratio of 1:2. Rope R is particularly well suited for use as a suspension and transmission rope R in an elevator having a large lift height, preferably an elevator having a lift height of more than 100 meters, more preferably 150-800 meters. The defined R chord can also be used to implement a new elevator without a C compensation chord or convert an old elevator to one without a C compensation chord.
    [00043] Figure 6 illustrates a preferred embodiment of an electrical model of the elevator rope condition monitoring arrangement, especially for the R rope part of the rope condition monitoring elements, connected to the R rope through the end block of rope 3 of rope end assembly 2. In a preferred embodiment of the rope condition monitoring arrangement the elevator comprises a light rope R comprising one or more, preferably at least four, load-bearing portions of polymer reinforced with unidirectional carbon fiber 12a, 12b, 12c, 12d as shown in figure 6 covered with polyurethane coating p. in the case of four load-bearing parts 12a, 12b, 12c, 12d as shown in figure 6, the string R is electrically modeled as four resistors. The preferred solution is to measure a string R as a single resistance. In this way, measuring arrangements are kept simple and the method is also safer, because the number of wires and connections is minimized. With this simple method and safe solutions to short circuit carbon fiber reinforced polymer load-bearing parts 12a, 12b, 12c, 12d and connect the measuring wires to the R rope, preferably by male screws screwed between the support parts of load 12a, 12b, 12c, 12d such that the screw acts as an electrically conductive path between adjacent load bearing portions 12a, 12b, 12c, 12d are used. At the counterweight end R’’ of rope R, preferably three screws are used to short-circuit all the filaments. At the carriage end R’ of the R rope, preferably two outermost load-bearing parts are connected together, and measurement wires are inserted under these two screws with a split ring connector. With this arrangement, all carbon fiber reinforced polymer load-bearing parts 12a, 12b, 12c, 12d are monitored and the entire string is seen as a single resistor.
    [00044] It is obvious to a person skilled in the art that the invention is not exclusively limited to the embodiments described above, in which the invention has been described by way of example, but that many different variations and embodiments of the invention are possible. Thus it is obvious that the R-strings described can be provided with a toothed surface or some other type of patterned surface to produce a positive contact with the traction sheave 6. It is also obvious that the rectangular composite load-bearing parts 12a, 12b , 12c, 12d electrically modeled as resistors may comprise more rigorously rounded edges than those illustrated or unrounded edges. Similarly, the polymer layer 10 of the R strings may comprise more rigorously rounded edges/corners than those illustrated or unrounded edges/corners. It is similarly obvious that the load-bearing part/parts 12a, 12b, 12c, 12d in the embodiments can be arranged to cover most of the cross-section of the rope R. in that case, the liner-like polymer layer 10 surrounding the load-bearing part/parts 12a, 12b, 12c, 12d is made thinner compared to the thickness of the load-bearing part 12a, 12b, 12c, 12d, in the direction of the thickness of the rope R. It is similarly obvious that in combination with the solutions represented by the figures, it is possible to use belts of other types than those shown. It is similarly obvious that both carbon fiber and glass fiber can be used in the same composite part, if necessary. It is similarly obvious that the thickness of the polymer layer p may be different from that described. It is similarly obvious that the shear resistant part could be used as an additional component with any other rope structure shown in this order. It is similarly obvious that the matrix polymer in which the reinforcing fibers f are distributed may comprise - mixed into the basic matrix polymer, such as epoxy - auxiliary materials such as, for example, reinforcements, fillers, colors, fire retardants, stabilizers or corresponding agents can be mixed into the base p-layer polymer, for example in polyurethane. It is similarly obvious that the invention can also be applied to elevators designed for lifting heights other than those considered above.
    [00045] It should be understood that the above description and the attached figures are only intended to illustrate the present invention. It will be evident to a person skilled in the art that the inventive concept can be implemented in various ways. The invention and its embodiments are not limited to the examples described above.
    权利要求:
    Claims (19)
    [0001]
    1. Rope terminal assembly (2) of an elevator, which assembly fixes an elevator rope (R) to a fixing base, whose elevator rope (R) has a width that is greater than its thickness in one direction rope cross section, with one end of the elevator rope (R) having an end face (R'), the elevator being suitable for transporting passengers and/or goods, the rope terminal assembly (2) comprising:- a block of rope end (3) for attachment to the end (R') of an elevator rope (R), - one or more wedge elements (8, 8'), - a wedge housing (4), characterized by the fact that the terminal assembly (2) comprises a rope slack through which the elevator rope (R) passes, when the elevator rope (R) is fixed to the terminal assembly, the wedge element (8, 8') being arranged to wed between the elevator rope (R) and the wedge housing (4), thereby locking the elevator rope (R) in the rope slack, the wedge element (8, 8') coming into contact with both the wedge housing (4) and the elevator rope (R) due to the insertion between the wedge housing (4) and the elevator rope (R), the rope end block (3) being attached to the end of the elevator rope (R) with respect to the wedge element (8, 8'), the rope end block (3) being made of plastic or other material without being electrically conductive, wherein each wedge element (8, 8') has a first surface (8a, 8a') in contact with the elevator rope (R) and a second surface (8b, 8b') in contact with the wedge housing (4), the first surface (8a, 8a') being opposite the second surface (8b, 8b'), and wherein the rope end-block (3) is secured to the wedge element (8, 8') with one or more string elements. fixation (10, 10').
    [0002]
    2. Rope terminal assembly (2) according to claim 1, characterized in that the rope end block (3) has a first part (3') on a first side of the elevator rope (R) and a second part (3'') on a second side of the elevator rope (R).
    [0003]
    3. Rope terminal assembly (2) according to claim 2, characterized in that the rope end block (3) is a one-piece structure where the first part (3') and a second part (3'') of the rope end block (3) are connected with a middle part (3d).
    [0004]
    4. Rope terminal assembly (2) according to claim 1, characterized in that the wedge element (8, 8') is an elongated element comprising a smooth contact surface portion (8b, 8b' ) and a patterned or rough contact surface part (8a, 8a'), the smooth contact surface part (8b, 8b') being disposed against the wedge housing (4) and the patterned or rough contact surface ( 8a, 8a') being arranged against an elevator rope surface (R).
    [0005]
    5. Rope terminal assembly (2) according to claim 1, characterized in that the wedge housing (4) comprises two elongated side elements (4a, 4a') and two elongated wedge support elements ( 4b, 4b'), the side elements (4a, 4a') and the wedge support elements (4b, 4b') being connected together to form a rope slack in the wedge housing (4).
    [0006]
    6. Rope terminal assembly (2) according to claim 1, characterized in that the wedge housing (4) comprises one or more adjustable locking elements (9, 9') that are arranged to lock the wedge element (8, 8') in its position in the wedge housing (4).
    [0007]
    7. Rope terminal assembly (2) according to claim 1, characterized in that the rope end block (3) extends over the end face (R') of the elevator rope (R) .
    [0008]
    8. Rope terminal assembly (2) according to claim 1, characterized in that the rope end block (3) is fixed to the elevator rope end (R) with one or more fastening elements (10, 10').
    [0009]
    9. Rope terminal assembly (2) according to claim 1, characterized in that the rope end block (3) comprises a first frame part (3c, 3c') fixed to the rope end of elevator and a second frame part (3a, 3a') fixed to the wedge element (8, 8'), and an elastic part (3b, 3b') between the first and second frame parts, which elastic part (3b, 3b') allows relative movement of the first (3c, 3c') and second (3a, 3a') frame parts of the rope end block (3).
    [0010]
    10. Rope terminal assembly (2) according to claim 1, characterized in that the rope end block (3) comprises an elastic part (3b, 3b') which is located outside a part of rope end block frame (3) secured to wedge element (8, 8').
    [0011]
    11. Rope terminal assembly (2) according to claim 1, characterized in that the elevator rope (R) is electrically connected to rope condition monitoring elements through the rope end block (3 ) comprising one or more electrically conductive short circuit elements and one or more fastening elements (10, 10').
    [0012]
    12. Rope terminal assembly (2), according to claim 1, characterized in that the elevator rope (R) is made of composite polymer material reinforced with carbon fiber.
    [0013]
    13. Rope terminal assembly (2) according to claim 1, characterized in that the elevator rope comprises load-bearing parts (12a, 12b, 12c, 12d) of carbon fiber reinforced polymer, to which rope condition monitoring elements are connected with electrically conductive fastening elements (10, 10').
    [0014]
    14. Elevator suitable for transporting passengers and/or goods, the elevator comprising:- an elevator shaft cable (S), - an elevator unit (1, CW) movable on the elevator shaft cable (S), the unit of elevator (1, CW) including an elevator car (1),- lifting elements comprising a lifting device (M) and one or more elevator ropes (R, C) connected to an elevator unit (1, CW ), characterized in that it comprises the rope terminal assembly (2) of the type defined in any one of claims 1 to 13, wherein the elevator rope (R, C) is fixed to the fixing base.
    [0015]
    15. Elevator according to claim 14, characterized in that the elevator comprises rope condition monitoring elements that are used to measure electrical resistance between a first point and a second point of the elevator rope (R, C) by a first time during elevator installation and a second time when the elevator was used to transport passenger and/or goods.
    [0016]
    16. Elevator according to claim 15, characterized in that the first point and the second point are points of a load-bearing part (12a, 12b, 12c, 12d) without being metallic of the elevator rope (R , C), or points of various electrically connected non-metallic load-bearing parts (12a, 12b, 12c, 12d) of the elevator rope (R, C).
    [0017]
    17. Elevator according to claim 14, characterized in that the elevator comprises rope condition monitoring elements connected through the rope end block (3) to the load-bearing parts (12a, 12b, 12c, 12d) of the elevator rope (R, C).
    [0018]
    18. Elevator according to claim 14, characterized in that the elevator comprises rope condition monitoring elements and, if an error signal is transmitted from the rope condition monitoring elements to an elevator controller, the elevator operation is altered or the elevator is taken out of service.
    [0019]
    19. Elevator according to claim 14, characterized in that the elevator rope (R, C) comprises load-bearing parts (12a, 12b, 12c, 12d) made of composite material of polymer matrix reinforced with fiber.
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    同族专利:
    公开号 | 公开日
    BR102013032986A2|2014-11-04|
    SG2013093786A|2014-07-30|
    ES2615905T3|2017-06-08|
    EP2749520A2|2014-07-02|
    AU2013273614A1|2014-07-17|
    ES2543955T3|2015-08-26|
    FI124543B|2014-10-15|
    US9422134B2|2016-08-23|
    CN103912632A|2014-07-09|
    EP2749520B1|2015-07-08|
    JP2014129182A|2014-07-10|
    EP2749520A3|2014-10-08|
    JP5572756B2|2014-08-13|
    AU2013273614B2|2018-05-24|
    CN103912632B|2016-05-04|
    US20140182975A1|2014-07-03|
    FI20126393A|2014-07-01|
    EP2933218B1|2017-02-08|
    HK1199086A1|2015-06-19|
    EP2933218A1|2015-10-21|
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    法律状态:
    2014-11-04| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-02-27| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-05-11| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/12/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20126393A|FI124543B|2012-12-30|2012-12-30|Linen mount and lift|
    FI20126393|2012-12-30|
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