• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A rope hoist limiter device (100), a rope hoist control system comprising the limiter device, a rope hoist limiter method, and a method of providing a rope hoist with a limiter device comprising: a switch (150) attached to the bracket (110) and arranged to provide a signal to stop the rope hoist. Sensing means (160) arranged to cause the switch to engage. The stop device is arranged to be fastened to the rope hoist by a bracket (110) arranged to fasten around the rope hoist rope (10). The restraining device comprises a sliding weight (120) arranged to slide along the rope hoist rope (10), the sensing means being arranged at a distance from the bracket (110) to detect the sliding weight (120) as it slides along the rope (10) towards the bracket (110); wherein the sensing means (160) does not comprise a pivoting lever.
    公开号:FI20195443A1
    申请号:FI20195443
    申请日:2019-05-28
    公开日:2020-11-29
    发明作者:Mikko Ritala
    申请人:Konecranes Global Oy；
    IPC主号:
    专利说明:

    CABIN LIFT - LIMITING DEVICE, CABLE LIFT CONTROL SYSTEM, CABLE LIFT LIMIT METHOD AND METHOD OF CABLE LIFT FOR EQUIPMENT WITH A LIMITER
    TECHNICAL FIELD The invention relates to a rope hoist limiter device, a rope hoist control system, a rope hoist limiter method, and a method of providing a rope hoist with a limiter device. In particular, the invention relates to a rope hoist limiter device which is - suitable for installation in different types of rope hoists.
    BACKGROUND This section describes background information useful to the reader without intending to be construed as necessarily representing the state of the art described herein.
    When using a rope hoist, mechanisms are in place that limit how high the load can be raised significantly in vertical motion. These mechanisms ensure that the load does not damage the rope hoist structures. In some countries, restraint mechanisms are also mandatory. Significantly - in addition to vertical movement, for example, bridge cranes (bridge crane) are controlled horizontally by moving a carriage or bridge, each with its own rails. The hoist is most often attached to a trolley, which has a rope roller and a fixed rope attachment point for winding and securing the rope. The hoist can also be located in a jib crane. The cantilever crane S 25 can be a crane rotating about a vertical axis or a permanently mounted non-rotating crane. 3 0 A limiter mechanism is previously known in which the triggering element of the limiter device is - mounted on the rope of the rope hoist. However, the prior art mechanism requires a certain type of rope and parts of the restraint device are mounted on the rope hoist 3 30 structures, which must be adapted to this. Such a known restrictor device is described in U.S. Pat. No. 8,657,134 B2. OF
    Not all rope hoists have sufficient security in the event that one of the restraint mechanisms fails or the restraint mechanisms are not installed. Thus, there is a need for a restraint device that can be easily retrofitted to different types of rope hoists and that does not require a specific rope or rope hoist structure. It is an object of the invention to provide such a restrictor device.
    SUMMARY According to a first aspect of the invention, there is provided a rope hoist limiter device comprising: a switch attached to a bracket and arranged to provide, upon engagement, a signal for stopping the rope hoist; identification means arranged to cause the switch to engage; wherein the restraint device is arranged to be attached to the rope hoist by a bracket arranged to engage around the rope of the rope hoist; and the restraining device comprises a sliding weight arranged to slide along the rope of the rope hoist, wherein the sensing means are arranged at a certain distance from the bracket to detect the sliding weight as it slides along the rope towards the bracket to engage the clutch; where the identification means do not comprise a pivoting lever. = 25 - The sliding weight may be attached to the bracket by a flexible bracket so that the sliding weight N slides beyond the length of the flexible bracket e from the bracket.
    E The flexible fastener may comprise one or more of the following: cable, wire, rope, 3 30 = tape, tension spring. >
    N The detection means may comprise a mechanical, optical, electrical, ultrasonic, electromagnetic radiation, and / or magnetic sensor arrangement or other mechanical arrangement arranged at a certain distance from the bracket to detect the sliding weight. The electrical sensor arrangement may comprise an inductive, capacitive, piezoelectric and / or resistive sensor. The optical sensor arrangement may comprise a sensor arrangement based on a photocell, laser, infrared light or ultraviolet light. - A sensor arrangement based on electromagnetic radiation may comprise a microwave sensor or a radar. The magnetic sensor arrangement may comprise a hall sensor. The weight may comprise an element, elements or material operatively coupled to the identification means. The sliding weight may consist of at least two parts attached to each other, in the gap between which the rope of the rope hoist is arranged to pass.
    The bracket may be arranged to engage the rope of the rope hoist by squeezing. The fastener may be made of at least two parts arranged to be connected to each other so that the rope of the rope hoist is pressed into the opening between the parts. oO S 25 LÖ The bracket can be arranged to be attached to ropes of different sizes by offering
    O 0 openings of different sizes. OF
    I = The sliding weight can be shaped so that the first ™ I 30 end towards the bracket is narrower than the second end. >
    S The sliding weight may comprise at least one rotationally symmetrical end with an axis of symmetry parallel to the rope.
    According to another aspect of the invention, there is provided a control system for a hoist hoist, characterized in that the control system comprises a limiting device according to the first aspect of the invention. The rope hoist control system may further comprise automatic control to control the rope hoist. The control system may comprise means for wired communication from the switch to the control system. The control system comprises means for wireless communication from the switch to the control system.
    According to a third aspect of the invention, there is provided a rope hoist limiter method, using a limiter device attached to a rope hoist rope, comprising a switch attached to the bracket and arranged to - provide a signal to stop the rope hoist when coupled; characterized in that the sliding weight of the restraint device is allowed to slide along the rope of the rope hoist, and O 25 - the clutch is engaged when the detection means detect a N sliding weight at a certain distance from the bracket as it slides along the rope towards the bracket.
    According to a fourth aspect of the invention, there is provided a method of providing a rope hoist E with a restraining device in which a restraining device according to the first si 30 aspect is mounted on a rope hoist. According to a fifth aspect of the invention, there is provided a rope hoist limiter device comprising:
    a switch - attached to the bracket and arranged to provide, upon engagement, a signal to stop the rope hoist; identification means arranged to cause the switch to engage; wherein the restraining device is arranged to be fastened to the rope hoist by a bracket arranged to fasten around the rope of the rope hoist; and the restraining device comprises a sliding weight arranged to slide along the rope of the rope hoist, wherein the identification means is = arranged at a certain distance from the bracket - to detect the sliding weight as it slides along the rope towards the bracket to engage the clutch. Various embodiments of the present invention are described or have been described only in connection with one or more aspects of the invention. One skilled in the art will appreciate that - any embodiment of an aspect of the invention may be applied to the same aspect and other aspects of the invention alone or in combination with other embodiments.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described, by way of example, with reference to the accompanying drawings. Fig. 1a schematically shows a rope hoist on which a rope hoist limiter device according to an embodiment is mounted; = 25 - Fig. 1b shows a block diagram of a limiter device N of a rope hoist according to an embodiment; Figures 2 and 3 schematically show a rope hoist-limiter device according to an embodiment; Fig. 4 shows a simplified diagram of a limiter method according to an embodiment 3 30 of the invention; and Figure 5 shows a simplified diagram of a system according to an embodiment N of the invention.
    DETAILED DESCRIPTION In the following description, like reference numerals refer to like parts or steps.
    It should be noted that the figures presented are not entirely on a scale, and that they essentially serve only the purpose of illustrating embodiments of the invention.
    Fig. 1 schematically shows a rope hoist on which a rope hoist limiter device according to an embodiment is mounted.
    Figure 1 shows a rope hoist rope 10 and a hook block 20 with a hook 30. The hook block 20 may have one or more rope pulleys through which the rope 10 is arranged to run.
    It should be noted that although Figure 1 shows a rope, or a rake with two up-and-down exports (1x2) made with one rope, the rope hoist limiter device according to embodiments of the invention can also be used for other types of rope (e.g. 1x4, 1x6, or 1x8). In Fig. 1, a stop device 100 according to an embodiment of the invention is attached to the rope 10 of the rope hoist at the point where it is desired to stop the movement of the hook block of the rope hoist at the latest.
    The load can be attached to the hook 30, for example by means of lifting slings, lifting slings or 20 chains.
    The hook 30 may also be adapted to lift a spreader if a rope hoist is used to lift port containers.
    The hook 30 can also be adapted to lift a lifting beam, which can be used to lift, for example, long horizontal axes.
    In Figure 1, the upwardly facing ropes can engage the rope roll (“left rope”) and the fixed rope end S 25 attachment (“right rope”) on the side of the rope hoist limiter 100.
    Depending on the layout of the 5 ropes, the “left rope” can also be connected to said rope drum via one or more 2 sheaves. I In the event of a load sway, the entire mentioned rope may participate in the S sway movement and still the restraint device may operate reliably.
    The restraining device 100 3 30 - is preferably attached to the rope on its side, which is supported from above to a fixed attachment point of the rope 2, according to Fig. 1, to the “right side rope”. With this N fastening method, the limiting device remains substantially at the same distance from the fixed fastening point of the rope, for example the so-called from the wedge housing and the portion of the rope on which the restraint device is attached is not guided into contact with the rope pulleys.
    According to Figure 1, the rope 10 can run, for example, as follows: the right-hand rope is attached at its upper end to a fixed attachment point of the rope.
    The rope runs - downwards through the stop device 100 down to the hook block 20 with the rope pulley folding.
    From the rope pulley, the rope continues as a rope on the left from the hook block 20 upwards.
    Depending on the type of rope, the left rope is guided at the top to the rope roller when the rigging is of type 1x2. If the richness is of the type 1x4, the rope is guided upwards through the fold of the rope pulley again downwards towards the hook block 20, where - it is folded again upwards through the second pulley pulley (not shown) and then to the rope roll with the attachment of the other end of the rope 10.
    In a similar way, up and down rope exports (falls) can be implemented, for example, in 1x6 and 1x8 enrichments. Fig. 1b schematically shows a rope hoist - restraint device 100 according to an embodiment. The restraint device 100 comprises a bracket 110 arranged to be fastened to the rope hoist rope 10, for example - by pressing, around the rope so that the bracket 110 remains in place at the desired position.
    The stop device 100 further comprises a sliding weight 120 arranged to slide along the rope 10 of the rope hoist.
    The limiter device 100 further comprises a switch 150 attached to the bracket 110. When coupled, the switch 150 is arranged to provide a signal to stop the rope hoist and thus prevent the hook block and / or load from rising above the limit set by the limiter device.
    According to one embodiment, the switch 150 comprises a microswitch. = 25 Sensing means 160 are operatively connected to the switch 150, which are arranged to detect the sliding of the weight 120 to a certain distance 170 from the bracket 2 110 and to engage the switch 150, i.e. the sensing means 160 is - arranged to detect the arrival of the weight 120 at a predetermined limit. . si 30 - According to one embodiment, the detection means 160 comprise a mechanical,> optical, electrical, ultrasonic, electromagnetic = radiation N-based, and / or magnetic sensor arrangement or other mechanical arrangement,
    which is arranged to detect the sliding of the weight at a certain point, i.e. to the limit, and to cause the switch 160 to engage. According to one embodiment, the mechanical sensor arrangement or other mechanical arrangement comprises a pivoting lever, a push button, a linear switch and / or a mechanical connection which breaks when the weight 120 reaches a limit. According to one embodiment, the electrical sensor arrangement comprises an inductive, capacitive, piezoelectric and / or resistive sensor.
    According to one embodiment, the optical sensor arrangement comprises a sensor arrangement based on a photocell, a laser, infrared light or ultraviolet light. According to one embodiment, the electromagnetic - radiation-based - sensor arrangement comprises a microwave sensor or a radar. According to one embodiment, the magnetic sensor arrangement comprises a hall sensor. According to one embodiment, the weight 120 comprises an element, elements or material operatively coupled to the identification means 160, for example an element identified by the identification means. According to one embodiment, when using a mechanical or electromechanical arrangement, for example a physical contact, which disconnects when = 25 - weight 120 reaches a limit, an element or elements are attached to the weight or the weight 3 is shaped so that as the weight approaches the limit a part of it is reached e.g. above the bracket 0 110 and is attached to a mechanical, or electromechanical, arrangement which - breaks or disengages when a part of the weight or an element attached to it moves sufficiently S above the bracket 110. An example of such an arrangement is an electrical wire, 3 30 - having a plug or the like which disengages as the weight advances to the boundary and the portion of the weight advancing above the bracket 2 110 pulls or pushes the electrical connection open and thus N switches a switch 150 selected to disconnect trips the clutch or so that in this case the disconnection stops the rope hoist, i.e.
    the disconnection corresponds to the engagement of the switch. According to one embodiment, in such a situation, the mechanical or electromechanical connection to be broken, for example said electric wire, is of such a length that the weight can move freely in the rope.
    Fig. 2 schematically shows a rope hoist stop device 100 according to an embodiment. The stop device 100 comprises a bracket 110 arranged to be fastened to the rope hoist rope 10, for example by pressing, around the rope so that the bracket 110 remains in place at the desired position. The location of the bracket 110 is selected according to where the absolute upper limit of the rope hoist hook block and / or load lifting is located. According to an embodiment of the invention, the stop device 100 is mounted between the fixed attachment point of the rope and the hook block 20. The stop device 100 may be below a fixed attachment point for the rope.
    The bracket 110 is attached to the rope so that the rope 110 passes through it through the hole 112a. The fastening is performed, for example, by pressing, in one embodiment of the invention = for example = by means of bolts 114. In one embodiment of the invention, the fastener 110 consists of at least two parts, between which - in the resulting opening 112a, b a rope is placed and which parts are then pressed against each other while fastening the fastener 110 around the rope. The structure of at least two parts allows the fastener 110, and thus the restraint device 100, to be attached to the rope hoist without having to disassemble the rope system or other structures. In one embodiment of the invention, the bracket 110 is secured at least = 25 - partially magnetically; gluing; pouring around the rope; soldering; welds; N by braiding or sewing on a rope. Additionally or alternatively, other methods of attachment may be used. Other fastening methods are, for example, riveting e.g. by means of the pull rivets I or the use of a surrounding compression collar, for example to compress the two parts together. 0 3 30
    LO 2 In one embodiment of the invention, the bracket 110 is arranged to fit N to be fastened to ropes of different thicknesses, for example so that by turning the bracket 110 either a first size mounting hole 112a or a second size mounting hole 112b can be utilized. According to one embodiment, the bracket 110 is provided, for example, with a mounting hole 112a of the first size for attachment to a rope having a diameter of 12-16 mm and with a mounting hole of the second size a rope having a diameter of 5-11 mm. If there are at least two said mounting openings, they may be located in parallel in substantially parallel directions or they may be located in intersection with each other. The crossing openings are shown by way of example in Figure 2. The bracket 110 preferably does not affect the strength of the rope or the use of the rope hoist. - In an exemplary embodiment, the pressure corresponding to the compressive force at which the fastener 110 is pressed onto the rope 10 is such that the pressure has no significant effect on the cross-sectional area of the rope or its safety limits. Depending on the implementation, the pressure can be 2; 2.5; 3; or 4 MPa measured with an accuracy of 1%, 5%, 10% or 20%, for example.
    According to one embodiment, the bracket 110 is made of a plastic material, for example injection molded plastic. The restraining device 100 further comprises a sliding weight 120 arranged to slide - along the rope 10 of the rope hoist. The weight 120 is mounted around the rope, for example, so that the rope passes through the opening 122 in the weight, however, so that the weight can slide along the rope, i.e. the weight is not tightened on the rope. In one embodiment, the extreme position of the weight along the rope is limited at the bottom to the hook block 20, or at the lowest position allowed by the flexible bracket if the weight is connected = 25 - by a flexible bracket 130 to the bracket 110.
    O 2 - According to one embodiment, the weight 120 consists of at least two parts S connected to each other so as to create an opening 122 between them for the passage of the rope. 3 30 Partless connected to each other in the usual way, eg with screws or bolts or with 2 form-locking parts. The structure N consisting of at least two parts allows the weight 120, and thus the restraint device 100, to be attached to the rope hoist without having to dismantle the rope system or other structures.
    According to one embodiment, the weight 120 is shaped so that its end 124 facing the bracket 110 is narrower than the opposite end 126. According to one embodiment, the weight 120 is made of a plastic material, for example, injection molded plastic. According to one embodiment, the sliding weight 120 is attached to the bracket 110 by a flexible bracket 130 to keep the weight close enough to the bracket 110 when the restraint device 100 is in use, i.e., the weight 120 hangs around the rope 10 - below the bracket 110 supported by the flexible bracket 130. According to another embodiment, the flexible fastener 130 comprises a cable, rope, wire, tape, or tension spring, such as a coil spring. According to another embodiment, the sliding weight is not attached to the bracket 110, but - rests on the hook block of the rope hoist. Such a situation may also arise if, for some reason, the flexible bracket 130 fails, causing the weight 120 to slide over the hook block of the rope hoist, but the restraint device may still operate. The limiter device 100 further comprises a switch 150 attached to the bracket 110, for example, by means of a suitable mounting element 140. When engaged, the switch 150 is arranged to provide a signal to stop the rope hoist and thus to prevent the hook block and / or the load from rising above the limit set by the limiting device. According to one embodiment, the switch 150 comprises a microswitch. = 25
    N LÖ The signal from the switch 150 can be supplied to the rope hoist control system e in a conventional manner, for example by means of a connecting cable or wirelessly using suitable wireless communication. a ™ 3 30 Sensing means 160 are operatively connected to the switch 150, which are arranged to cause the switch 150 to engage when the weight 120 approaches the bracket 110 by the rising N hook block, i.e. rises to its limiting position determined by the limiting device.
    According to one embodiment, the switch 150 may engage when the detection means 160 provides a signal to the switch, in which case the switching may be made from the rising or falling edge of the signal, or the signal from the detection means 160 may be lost. - The signal from the identification means 160 to the switch 150 can be supplied in a conventional manner, for example by means of a connecting cable or wirelessly using suitable wireless communication = when wireless communication is a communication bus permitted in the safety devices.
    The sensing means 160 is arranged such that when the restraint device is used, the sliding weight or, in some embodiments, the weight head 124 arrives at the limit 170 defined by the sensing device 160 as the sliding weight rises toward the bracket 110 as the rope hook hook segment rises to its upper limit position. When the weight or the end 124 of the weight 120 arrives at the limit defined by the identification means 160, and the switch 150 engages, the rope lifter stops and the hook block rises above its upper limit position. Fig. 3 shows this situation in which the limiting device is triggered when the weight 120 reaches the limit defined by the detection means 160 and the switch 150 is engaged. The flexible bracket 130 can bend sideways as the weight 120 rises, reducing its effective length as desired. The effective length of the flexible bracket 130 is greatest when the weight 120 depends on the flexible bracket 130.
    The weight 120 is preferably rotationally symmetrical with respect to its central axis = 25 - a piece through which the rope 10 is arranged to run in a hole arranged through the central axis. The weight 120 preferably comprises a rotationally symmetrical surface on the outer surfaces of the head 124, 2 such as the upper surface, and on the outer surfaces of the head 126, such as the lower surface. These surfaces of the I-ends 124, 126 may be in the shape of an open red fly agaric (lat. Amanita muscaria) S or tatti mushrooms or in the shape of a ball calyx. The outer diameter of the head 124 may be smaller than the outer diameter of the head 126. The weight 120 may be freely rotatable 2 around the rope 10. The weight 120 may comprise non-rotationally symmetrical surfaces N or shapes with a portion between the ends 124, 126 and / or rope attachments.
    The outer diameters of the ends 124,126 of the weight 120 are sized so that the outer diameters of the ends 124,126 are large enough to make reliable contact with the designed surfaces and further facilitate identification by the identification means 160 to engage the switch 150 as the hook block 20 approaches its upper limit.
    According to one embodiment, the sliding weight 120 may be substantially close in diameter to the diameter of the rope 10, however, in size and / or material such that the identification means 160 detects its arrival at the boundary. According to one embodiment, the weight 120 comprises a sleeve around the rope 10 or the like of a material recognized by the identification means 160, for example the weight 120 may comprise a sleeve of ferromagnetic material around the synthetic rope or a surface reflecting in a certain way which can be detected optically. In one embodiment, the weight 120 may move further up the rope after detection by the identification means 160 a sufficient distance to stop the rope hoist before the weight 120 strikes the bracket 110. In one embodiment, this sufficient distance is about 30 mm, which is sufficient to stop the rope hoist. Preferably, the rope 10 is attached above the bracket 110 to a rope end termination of the rope. The attachment point can be, for example, in the hoist carriage. According to one embodiment, in a situation where the richness of the rope hoist is odd, i.e. the number of rope threads is odd - for example 1x3 or 1x5 - and the rope = 25 - a fixed attachment point of the rope is placed in the hook block 20, the limiter 100 is positioned N upside down. -3 to the 2 embodiments shown. In this embodiment, the weight 120 may rest on the identification means 160 comprising the mechanical arrangement and the mass of the weight 120 and / or the force required by the mechanical identification means 160 are selected so that the weight 120 3 alone cannot cause detection and engage the switch 150, but the switch 2 engages only. , when the hook block rises to its extreme limit, the weight 120 presses against the mechanical arrangement comprised by the N detection means 160 under the influence of an external force. In this embodiment, the weight is further, according to one embodiment, in the same direction as illustrated in Figures 1-3, as long as the outer diameter of the weight ends 124,126 is sufficient to make reliable contact with the designed surfaces and further provide detection to engage the switch 150 as the hook block 20 approaches its upper limit.
    Figure 4 shows a simplified diagram of a restrictor method according to an embodiment of the invention. In step 410, the restrictor device 100 is mounted in place on the rope hoist. The bracket 110 is pressed around the walker 10 at the point where it is desired that the upper boundary position of the rope hoist hook and / or load be located. The sliding weight 120 is slidably mounted around the rope 10 and in one embodiment hangs by a flexible bracket 130 in the bracket 110. The sensing means 160 have not detected the weight and the switch 150 is thus not engaged, so that the rope hoist can operate normally. In step 420, the hook block and / or load of the hoist rises upward toward its upper limit position. At the same time, it slides the weight 120 further along the rope upwards towards the identification means 160.
    In step 430, as the hook block continues to ascend toward its upper limit position, the upper end 124 of the weight 120 arrives at the limit 170 defined by the identification means 160 and provides identification. S 25 In step 440, the limiter device trips, i.e., the switch 150 engages after the detection means 160 5 the weight 120 at the limit 170 and the rope hoist stops. In one embodiment, the identification means 160 remain in the state in which the identification has taken place until they 2 are manually or otherwise returned to the operating state. Fig. 5 - Fig. 5 shows a simplified diagram of a system 500 according to an embodiment of the invention. The system comprises a rope hoist 510, a limiting device 100, a control system 520 and optionally an automatic control 530.
    One of the technical advantages of the present invention can be considered to be the provision of a restraint device which can be simply installed on different types of rope hoists without changing or dismantling them.
    Another technical advantage of the present invention can be considered to be the improvement of the safety of the limiting device. In some embodiments, once the identification means 160 has detected the weight 120, they must be separately reset. In this way, it can be ensured that the user notices that the safety limit has been switched on and that the normal limiters have failed. This avoids the potential danger that could arise if the user were only informed of the activation of the safety limit by a warning signal. The user may not notice the warning signal or understand its meaning. In this case, the user will not notice any fault in the rope hoist and this will pose a significant danger to life and health. It is also possible that the warning signal would be given just when the shift was changed and the information about the warning signal would not be transmitted to the next shift due to a communication error. However, in some other embodiments, in addition or alternatively, said warning signal may be provided for the detection means 160 to be out of operation.
    In addition to the limiting device described above, the hoist may also have another limiting device, - some of which limiting devices are connected to separate safety circuits by way of example. These separate security circuits may have different levels of security configuration, such as a more permissive security configuration and a more critical security configuration. In one example case, in a more permissive safety circuit, after the upper limit has been switched on, it is still possible to control the hook block 20 using the user control device downwards. In the more critical S 25 safety circuit, commissioning the lift after the upper limit has been exceeded requires 5 separate operations, which may not be possible from the user's 0 controls. OF
    One third technical advantage of the above invention can be considered to be the provision of a restraint device 330 which is simple and inexpensive to manufacture. A fourth technical advantage of the invention presented above 2 can be considered to be the provision of an N-limiting device which is reliable. One of the fifth technical advantages of the above invention can be considered the relative ease of installation of the limiter device, due to which the limiter device can be easily installed as a new or in place of the previous limiter device = on the hoist for retrofitting, for example during maintenance.
    The above description provides non-limiting examples of some embodiments of the invention. However, it will be apparent to one skilled in the art that the invention is not limited to the details set forth, but that the invention may be practiced in other equivalent ways.
    - Some features of the presented embodiments can be utilized without the use of other features. The foregoing description is to be considered as such only as a description of the principles of the invention and not as limiting the invention. Thus, the scope of the invention is limited only by the appended claims.
    oO O OF LÖ
    I co OF
    I a ™ + + LO O O OF
    权利要求:
    Claims (13)
    [1]
    A rope hoist limiter device (100), comprising: a switch (150) attached to the bracket (110) and arranged to - upon engagement, provide a signal for stopping the rope hoist; identification means (160) arranged to cause the switch to engage; characterized in that the restraint device is arranged to be fastened to the rope hoist by a bracket (110) arranged to fasten around the rope (10) of the rope hoist; and the restraining device comprises a sliding weight (120) arranged to slide along the rope hoist rope (10), the sensing means being arranged at a distance from the bracket (110) to detect the sliding weight (120) as it slides along the rope (10) towards the bracket (110) ; wherein the sensing means (160) does not comprise - a pivoting lever.
    [2]
    Rope hoist limiter device (100) according to claim 1, characterized in that the sliding weight (120) is attached to the bracket (110) by a flexible bracket (130) such that the sliding weight (120) slides farther from the length of the flexible bracket (130) ) is blocked.
    [3]
    Rope hoist limiter device (100) according to claim 2, characterized in that the flexible bracket (130) comprises one or more of the following: cable, wire, rope, tape, tension spring. S 25 LÖ
    [4]
    Rope hoist 2 limiter device (100) according to any one of the preceding claims, characterized in that the detection means (160) comprise - a mechanical, optical, electrical, ultrasonic, electromagnetic S-based, and / or magnetic sensor arrangement or other mechanical s 30 arrangement arranged at a certain distance from the bracket (110) to identify the sliding: weight (120).
    [5]
    Rope hoist limiter device (100) according to claim 4, characterized in that the electrical sensor arrangement comprises an inductive, capacitive, piezoelectric and / or resistive sensor.
    [6]
    Rope hoist limiter device (100) according to claim 4, characterized in that the optical sensor arrangement comprises a sensor arrangement based on a photocell, a laser, infrared light or ultraviolet light.
    [7]
    Rope hoist limiter device (100) according to claim 4, characterized in that the sensor arrangement based on electromagnetic radiation comprises a microwave sensor or a radar.
    [8]
    Rope hoist limiter device (100) according to claim 4, characterized in that the magnetic sensor arrangement comprises a hall sensor.
    [9]
    Rope hoist limiter device (100) according to any one of the preceding claims, characterized in that the weight (120) comprises an element, elements or material operatively connected to the identification means (160).
    [10]
    Rope hoist-limiter device (100) according to any one of the preceding claims, characterized in that the sliding weight (120) consists of at least two interlocking parts, in the opening (122) of which the rope hoist rope (10) is arranged to pass.
    [11]
    Rope hoist-limiter device (100) according to any one of the preceding claims, characterized in that the bracket (110) is arranged to engage the rope hoist rope (10) by compression.
    N S
    [12]
    Rope hoist N limiter device (100) according to any one of the preceding claims, characterized in that the bracket (110) is made of at least E 30 to two parts arranged to be connected to each other so that the rope hoist si rope (10) is pressed into the opening between the parts. (112). >>
    [13]
    Rope hoist limiter device (100) according to any one of the preceding claims, characterized in that the bracket (110) is arranged to be attached - to ropes of different sizes by providing openings (112) of different sizes.
    Rope hoist stop device (100) according to any one of the preceding claims, characterized in that the sliding weight (120) is shaped such that the first end (124) facing it towards the bracket (110) is narrower than the second end (126).
    Rope hoist limiter device (100) according to any one of the preceding claims, characterized in that the sliding weight (120) comprises at least one rotationally symmetrical end, the axis of symmetry of which is parallel to the rope.
    Rope hoist control system, characterized in that the control system comprises a limiting device (100) according to any one of the preceding claims.
    A rope hoist control system according to claim 16, characterized in that the rope hoist control system further comprises an automatic control for controlling the rope hoist.
    Lift control system according to claim 16 or 17, characterized in that the control system comprises means for wired communication - from a switch (150) to the control system.
    A hoist control system according to claim 16 or 17, characterized in that the control system comprises means for wireless communication from the switch (150) to the control system. o 25> 20. - A hoist limiter method in which: 3 a - rope hoist - a rope - is used by a bracket (110) attached to a bracket device (100) comprising a switch (150) attached to the bracket E (110) and arranged to provide a signal to stop the rope hoist o 30 and sensing means (160) arranged to provide engagement of the D switch, wherein the sensing means (160) do not comprise a pivoting lever, characterized by allowing the sliding weight (120) of the stop device to slide along the rope hoist rope (10), and engaging the switch (150) when the sensing means at a certain distance from the bracket (110) detecting a sliding weight (120) as it slides along the rope (10) towards the bracket (110).
    A method of providing a rope hoist with a restraint device, characterized in that a restraint device (100) according to any one of claims 1 to 15 is mounted on the rope hoist.
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    同族专利:
    公开号 | 公开日
    FI129156B|2021-08-13|
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    优先权:
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    FI20195443A|FI129156B|2019-05-28|2019-05-28|Stopping device for a wire rope hoist, control system for a wire rope hoist, method for stopping a wire rope hoist and method for providing a wire rope hoist with a stopping device|FI20195443A| FI129156B|2019-05-28|2019-05-28|Stopping device for a wire rope hoist, control system for a wire rope hoist, method for stopping a wire rope hoist and method for providing a wire rope hoist with a stopping device|
    PCT/FI2020/050318| WO2020229731A1|2019-05-13|2020-05-13|Wire rope hoist limiter|
    CN202080035969.6A| CN113853350A|2019-05-13|2020-05-13|Wire rope hoist stopper|
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