• 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:
    The invention relates to lifting devices, such as rope hoists and ropes for hoisting devices, and in particular to a rope guide device used in connection with a rope hoist for guiding a hoisting rope. A rope hoist rope guide device (14) according to the invention for guiding a hoisting rope (12, 13) onto a hoisting rope (4), which rope roller (4) is adapted to rotate to wind the hoisting rope (12, 13) around the hoisting rope (4) or away from the hoisting rope (12) ) for lifting and lowering the adapted load, which rope guide device (14) comprises at least one guide element (15, 16) for guiding the hoisting rope (12, 13) of the rope hoist, and a screw (17, 18) for moving said at least one guide element (15, 16), is characterized the fact that the rope guide device (14) is supported on the rope hoist carriage body (1) by means of a support arrangement (31, 41, 50, 51), which support arrangement (31, 41, 50, 51) comprises first articulations (32, 42, 52, 60), and second articulations (33, 34, 43, 44, 53, 54, 70, 80) arranged at a substantially 90 degree angle to said first articulations (32, 42, 52, 60).
    公开号:FI20195250A1
    申请号:FI20195250
    申请日:2019-03-29
    公开日:2020-09-30
    发明作者:Jari Kaiturinmäki
    申请人:Konecranes Global Oy；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION The invention relates to lifting devices, such as rope hoists and ropes for hoisting devices, and in particular to a rope guide device used in connection with a rope hoist for guiding a hoisting rope. Background of the Invention Rope hoists are commonly used lifting devices. Rope hoists can be used, for example, in bridge cranes. A bridge crane is a type of crane commonly used in various industrial plants. For example, a bridge crane may consist of a lifting bridge running on two rails, a hoisting carriage attached to said hoisting bridge and moving along said hoisting bridge, and a hoisting device mounted on said hoisting carriage, such as a rope hoist with a conventional hook. A bridge crane can typically operate in a factory hall, in which case the bridge cranes of the bridge crane can be attached to the hall structures. The bridge crane can also be located outdoors, in which case the bridge crane operates on some kind of separate support structure.
    A rope hoist typically comprises a rope roll, which rope roll is rotatable about its axis and which is used, for example, to rotate a hoisting rope wound on a rope roll. In this connection, the hoisting rope, in short the rope, can comprise, in addition to the actual rope, also a wire to be wound on the rope roll of the rope hoist, such as a steel wire, a cable, a belt, a toothed belt, a strap or a chain. The rope hoist typically also comprises a rope guide device used to guide the hoisting rope to be wound / wound on the rope roll, said rope being wound on or off the rope roll.
    > 25 The rope guide device is typically used to guide the rope to be wound / wound on the rope reel of the rope hoist N so that during rewinding the angle between the hoisting rope coming out of the rope hoist 3 and the axis of rotation of the rope hoist rope roll is kept within predetermined limits, such as about 90 degrees Said angle of about 90 degrees corresponds to the angle of the rope coming out of the roll - 30 with respect to the rope groove, which rope angle with respect to the rope groove O is close to zero whenever the active rope guide is in use. Thus, the rope guide device typically comprises a guide member, which guide member can be moved between two end positions along an axis which is typically substantially parallel to the axis of rotation of the rope roll.
    The rope angle area available in the rope of hoisting equipment is very limited for the rope angles of the rope unloading from the rope roll, for example when winding into one layer at rope angles higher than four degrees, the rope stays on the rope roll and the ridge, roll and rope wear shortens the service life of the parts referred to in, for example, EN 13001-3-2. The rope can also be wound on the rope roll of the hoisting device in several layers, which in turn facilitates keeping said rope angle suitable.
    U.S. Pat. No. 5,829,737 A discloses a solution for controlling a rope to be unloaded from a rope roll and wound on a rope roll in order to soften the movement of the rope, especially when the rope is subjected to lateral or diagonal forces.
    However, this guide is only suitable for use with the above-mentioned rope angles of less than four degrees, which significantly limits the rope options and, for example, the number of rope wheels used in the rope and the available rope roll to rope diameter ratios.
    The operation of the control element of the rope guide of the rope hoist can be controlled manually or automatically.
    The manual operation of the control element of the rope control device can be used, for example, in connection with maintenance or rope replacement.
    In automatic operation, the rotational movement of the rope roller is - technically related to the movement of the rope guide.
    In automatic operation, the control member of the rope guide device preferably moves automatically between the two end positions so that the angle between the rope coming out of the rope hoist and the axis of rotation of the rope hoist rope is kept within suitable limits during the rope winding.
    For example, when the rope is rotated on or out of the rope bridge of said rope hoist, said rope guide device moves during one rope layer of the rope roll in its rope guide device from its first extreme position D to its second extreme position and then changes direction from the next rope layer to the first. = The control element of the rope guide of the rope hoist can be moved by an N 30 drive, such as an electric motor, by means of a screw E engaging the control element.
    In this case, the change in the direction of movement of the control member can be performed by changing the direction of rotation of the drive.
    N Due to the nature of the 2 lifting operations, the rope hoist and the rope hoist control device are subjected to forces in different directions, which cause the N 35 to oscillate and vibrate.
    Such forces acting on the equipment can be, for example, horizontal forces occurring in the direction of travel of the wagon or on the bridge, as well as forces due to skewing of the equipment.
    Attempts have been made to solve the problem caused by the forces exerted on the rope hoist and the rope hoist rope guide device by various solutions according to the prior art. One such prior art solution is disclosed in U.S. Patent No. 5,863,029 A, which describes rope guides implemented with rope guide channels fitted to a rotatable rail. However, said rope guides cannot sufficiently effectively eliminate or limit the forces in different directions applied to the rope hoist and the rope hoist rope guide device.
    There is therefore a clear need for a solution which allows the hoisting rope of the hoisting device to be guided reliably and evenly on the hoisting rope roller, and which makes it possible to dampen the forces acting on, among other things, the rope hoist and the rope hoist rope guide.
    BRIEF DESCRIPTION OF THE INVENTION The object of the invention is thus to develop a new method and a rope guide device solution suitable for implementing the method, by means of which the hoisting rope is safely and evenly guided on the hoisting rope roll, and by which forces on the rope hoist and rope hoist rope guide device are better damped.
    A rope hoist rope guide device for guiding a hoisting rope on a rope roll according to the invention, which rope roll can be adapted to rotate to wind the hoisting rope around the rope roll or from the rope roll to raise and lower the load fitted to the hoisting rope. is characterized in that the rope guide device N is supported on the frame of the rope hoist carriage by means of a support arrangement S, which support arrangement comprises first articulations, and second E30 articulations arranged at a substantially 90 degree angle to said first Q articulations.
    o Preferably, said second articulations are arranged below said first articulations. Preferably, said second articulations are arranged above said first articulations.
    NN Preferably, said second articulations are implemented by interconnected parallel rope-side articulations and load-side articulations. Preferably, said rope roller side articulations are rigidly connected to said load side articulations by means of connecting arms.
    Preferably, said first joints are implemented with pin joints or limited, damped and / or self-centering joints. Preferably, said second articulations are implemented with limited, damped and / or self-centering articulations.
    Preferably, said first articulations comprise an outer frame symmetrically arranged with respect to its articulated axis and an inner frame articulated within said outer frame symmetrically with respect to the articulated axis and supported by resilient support elements.
    Preferably, said second articulations comprise outer frames symmetrically arranged with respect to their articulated shafts and inner frames symmetrically arranged with respect to the articulated shafts of the articulations within said outer frames, supported by resilient support elements.
    Preferably, a coercive force is applied to said second articulations to guide the rope guide device to its initial position.
    Preferably, said screw comprises a first screw portion comprising a first thread, and a second screw portion comprising a second thread in a direction opposite to said first thread, said first and second screw portions being connected to each other by a switch at the distribution point. Alternatively, said screw comprises a first screw portion comprising a first thread, and a second screw portion having a second thread parallel to said first thread, said first and second screw portions being connected to each other by a switch at the distribution point.
    o Preferably, said first and second screw parts are mounted D at both ends of said screw. Preferably, the connecting part of said first and second screw parts is supported and / or mounted so that the direction of movement in the longitudinal axis of said first and second screw parts is free. Preferably, said rope guide device N 30 is implemented with two separate interconnected rope guide device parts E. Preferably, said screw for moving said at least one guide element is a ball screw.
    A rope hoist hoisting trolley according to the invention is characterized in that it comprises a rope guide device supported on the frame of the rope hoist hoisting trolley by means of a support arrangement comprising first articulations and second articulations arranged at a substantially 90 degree angle to said first articulations.
    The rope hoist according to the invention is characterized in that it comprises a rope guide device supported on the frame 5 of the rope hoist carriage by means of a support arrangement comprising first articulations and second articulations arranged at a angle of substantially 90 degrees to said first articulations.
    The bridge crane according to the invention is characterized in that it comprises a rope guide device supported on the body of the rope hoist carriage by means of a support arrangement comprising first articulations and second articulations arranged at an angle of substantially 90 degrees to said first articulations.
    BRIEF DESCRIPTION OF THE DRAWINGS Some embodiments of the invention will now be described in more detail in connection with some preferred embodiments, with reference to the accompanying drawings, in which: Figure 1 shows an overview of a rope hoist lifting car according to an embodiment of the invention; Fig. 2 schematically shows a cable lifter control device according to an embodiment of the invention; Fig. 3 shows the structure of the first articulation of the support arrangement of a rope guide device according to an embodiment of the invention; Fig. 4 shows the structure of the second articulations of the support arrangement of a rope guide device according to an embodiment of the invention; Fig. 5 shows a perspective view of an articulation structure of a support arrangement of a rope guide device according to an embodiment of the invention; Fig. 6 shows a perspective view of the structure of the first articulation S of the support arrangement of a rope guide device according to an alternative embodiment of the invention; Q Fig. 7 is a perspective view of the structure of the second articulations of a support arrangement of a rope guide device according to an alternative embodiment of the invention; Fig. 8 is a perspective view of an articulation structure N of a support arrangement of a rope guide device according to an alternative embodiment of the invention; Fig. 9 shows an overview of a rope guide device of a rope hoist according to an embodiment of the invention; and
    Fig. 10 shows a detailed view of a rope guide device of a rope hoist according to an embodiment of the invention.
    The figures are not shown to scale and some features may have been simplified, highlighted or obscured in the figures to improve the clarity of the essential features.
    DETAILED DESCRIPTION OF THE INVENTION The rope guide device now presented can be used in connection with a lifting device, in particular a rope roll of a lifting device.
    Such a rope roll can also be called a rope reel or a rope drum.
    In this connection, the hoisting rope, in short the rope, can comprise, in addition to the actual rope, also a wire to be wound on the rope roll of the rope hoist, such as a steel wire, a cable, a belt, a toothed belt, a strap or a chain.
    Figure 1 shows an overview of a rope hoist hoisting carriage according to an embodiment of the invention.
    The hoisting carriage of Fig. 1 comprises a hoisting carriage body 1, a load beam 2 in the transverse direction of the hoisting carriage forming part of the hoisting carriage body, and a hoisting mechanism 3 supported on the hoisting carriage body 2 and comprising a rope roller 4, a hoisting motor 5 The hoisting carriage of the rope hoist may also comprise rope gears arranged in the frame 2 of the hoisting carriage. The hoisting carriage of the rope hoist further comprises a hoisting rope guide device 14 arranged parallel to the rope roller 4 between the rope roller 4 and the lifting part 9, according to Fig. 1.
    The hoisting part 9 of the rope hoist is preferably a hook 9. The rope guide of the hoisting rope is preferably an active rope guide.
    The rope hoist hoisting carriage according to the embodiment of the invention shown in Fig. 1 further comprises a separate hoisting part, which hoisting part comprises at least the first and second hoisting parts of the rope gear 10, 11. In addition, the rope hoist N comprises at least one hoisting rope 12, 13. The embodiment of Figure 1 comprises a first and a second hoisting rope 12, 13 arranged between the rope gears 10, 11 of the rope roller 4, the lifting part 9 Q and the rope gears of the frame.
    The rope gears of the hoisting part of the hoisting part E 30 10,11 and the hoist carriage body may comprise more than 3 two rope pulleys.
    Said hoisting rope gears 10,11 and the hoisting carriage's carriage rope carriageways may, for example, consist of a plurality of rope pulleys for each hoisting rope 2 12,13 arranged in separate structures N releasably attached to the hoisting carriage body 1. Such a structure is - advantageous, as the number of rope pulleys can be easily changed, for example for maintenance or according to the richness required by the hoisting rope of the application.
    Lifting ropes
    12,13 thus run from the rope roll 4 to the rope gears 10,11 of the lifting part and from there to the rope gears of the frame, so that the first ends of the lifting ropes are attached to the rope roll 4 and the second ends of the lifting ropes are attached close to the rope gears of the body. In Figure 1, for the sake of clarity, the hoisting ropes are only shown wound on the rope roller 4.
    In the rope hoist according to an embodiment of the invention, the rope roll 4 may be adapted to rotate relative to its roll axis to wind the first and second hoisting ropes 12, 13 around the rope roll 4 or out of the rope roll 4 to lift and lower a load (not shown) fitted to the rope. Such rope rollers 4 of the rope hoist may be grooved or non-grooved and are known per se and the properties of the rope roll are therefore not described in more detail in this connection.
    Fig. 2 shows a rope guide device 14 for a rope hoist according to an embodiment of the invention. The rope guide device 14 according to Fig. 2 comprises at least one guide element 15, 16. A guide element 15, 16 means a structure through which a lifting rope 12, 13 is guided. to limit the movement of the rope, for example lateral movement, and / or to change the direction of the rope.
    The rope hoist rope guide device 14 according to an embodiment of the invention also comprises a support arrangement 31, 41, by means of which said rope guide device 14 is supported on the rope hoist carriage frame 1. The rope guide device support support 31, 41 according to the invention comprises parallel first articulations 32, , which allow the pendulum to move in a first direction in a plane perpendicular to the articulated shafts of said first articulations 32, 42. Said first articulations o 32, 42 can be realized, for example, with conventional pin joints. Alternatively, said first articulations 32, 42 may be implemented with limited, N-damped and / or self-centering articulations 32, 42. Said first P-direction may be the direction of travel of the crane hoist hoist N 30 of a crane, such as a bridge crane. Furthermore, the support arrangement E 31,41 of the rope guide device 14 according to the invention comprises second articulations 33, 43 and 34, 44.
    o Said second articulations 33, 43 and 34, 44 of the support arrangement 31, 41A of the rope guide device 14 according to the invention can be realized by means of flexible articulations 33, 43 and 34, 44. The flexible articulations 33, 34, 43, 44 cause the N 35 to avoid oscillation or vibration due to the different forces actually encountered in the use of the rope guide device 14 in the hoist of the rope hoist or in the rope guide device 14 itself. Said second articulations 33, 43 and 34, 44 may be implemented by two interconnected, parallel resilient joints 33, 34 and 43, 44. Said second parallel articulations 33, 43 and 34, 44 allow pendulum movement in the other direction of said second articulations 33, 43 and 34, 44 in the direction of the connecting axes.
    Said second articulations 33, 43 and 34, 44 may be implemented with limited, damped and / or self-centering articulations 33, 43 and 34, 44. The further mentioned second articulations 33, 43 and 34, 44 may be fitted with articulations 33, 43 and 34, 44, which forces the rope guide device 14 to its initial position when it is not affected by any external force. Said second direction may be arranged at an angle of substantially 90 degrees to said first direction. Said second direction may be the direction of travel of the hoist bridge of the rope hoist of a crane, such as a bridge crane.
    Due to the nature of the riches and the lifting operation, lateral forces are applied to the riches. By means of the support arrangement 31, 41 of the rope guide device 14 according to the invention, these lateral forces on the rope can be received so that excessive forces are not applied to the rope guide device 14 itself or its suspension structure, which would dimension the rope guide device 14 unnecessarily large. Lateral horizontal forces acting on the rake can occur both in the direction of travel of the rope hoist carriage and in the direction of travel of the bridge. Thus, the support of the rope guide device 14 is made to allow a pendulum-type movement in the direction of the two axes.
    The second flexible articulations 33, 34, 43, 44 according to the invention - ensure that no oscillation or vibration occurs in the rope hoist hoisting carriage or in the rope guide device 14 itself due to the different D forces actually occurring in use of the rope guide device 14. Furthermore, by means of the movements in the direction of the rope guide device 14 of the rope pointer N according to the invention and said at least one guide element 15, 16 = the oblique traction forces, the forces acting on the rope guide device 14 can be damped and limited.
    E In one embodiment, the rope guide device 14 comprises at least two guide elements 15, 16. The guide elements 15, 16 can be arranged to move relative to each other in the direction of the roller axis simultaneously and at the same speed. In this context, the axis of the roll 2 means the longitudinal axis of the rope roll, which is also the
    N is the axis of rotation of the roller 4 and in the direction of the roller axis in a direction parallel to the roller axis. Depending on the embodiment, the control elements 15, 16 may be adapted to move in the same direction or in opposite directions relative to each other.
    The rope guide device 14 further comprises an actuator for generating a rope guide force. For the sake of simplicity, the rope steering force has also been referred to in this context only as an expression of force when, on the basis of the context, no other force is clearly referred to. Said rope guide force acts on each guide element 15, 16 in the direction of the roller axis so that the movement of each guide element 15, 16 in the direction of the roller axis can be controlled by means of a force. More specifically, the rope guide force allows each guide element 15, 16 of the rope guide device 14 to be steered to the desired position in the rope guide device 14 in the direction of the roll axis. Said rope guide force thus controls the movement of the guide elements 15, 16 in spite of and resisting the force in the direction of the roller axis possibly applied by the hoisting rope 12, 13 to each guide element 15, 16.
    In this case, the position of the guide elements 15, 16 means the position of the guide elements 15, 16 relative to the rope roll 4, in particular the position in the direction of the roll axis of the rope roll 4. The rope guide force generated by the actuator of the rope guide device is formed substantially parallel to the roll axis. However, said rope guide force and the force exerted by the hoisting rope 12, 13 on the guide element 15, 16 may also comprise components in a direction other than the force acting in the direction of the roller axis.
    By means of the rope guide device 14 according to the invention, the starting angle of the hoisting rope 12, 13 from the rope roll 4 can be influenced by guiding said guide elements 15, 16 to the desired position by means of a rope guide force generated by the rope guide device 14. In this connection, the rope angle means the starting angle D of the hoisting rope 12, 13 from the rope roll 4 in the direction of the radius of the rope roll N. More specifically, the starting angle of the rope refers to the angle corresponding to the angle formed by the lifting rope 12, 13 leaving the rope 4 with respect to the plane defined by the circumference of the rope roll 4 passing through the starting point N 30 of the rope roll. E In one embodiment, the actuator of the rope guide device 14 may be adapted to guide each guide element 15, 16 to such a position that the starting angle of the hoisting rope 12, 13 from the rope roll 4 is small or substantially parallel to the radius of the rope roll 4, i.e. less than 4 degrees, or 0 degrees, or about 0 degrees, regardless of the angle between the starting point of the hoisting rope 12, 13 leaving the rope roll 4 and the guide structure guiding the direction of the rope closest to the rope roll 4.
    The advantage of such an embodiment is that the restrictions imposed on the geometry of the rope angle by the rope and on the dimensioning of the rope roll 4 and the hoisting rope 12, 13 can be overcome.
    In one embodiment, the guide elements 15, 16 can be adapted to move relative to the rope roll 4 of the guide device 14 so that the guide elements 15, 16 move simultaneously and at the same speed in opposite directions at least in the direction of the roll axis.
    In this case, the guide elements 15, 16 can be arranged to be in each position at the same distance from one another, in particular in the direction of the roll axis, from the center of the winding area of the rope roll 4, i.e. the center of the area through which the rope is wound.
    That is, in one embodiment, the guide elements 15, 16 can be arranged in each position symmetrically with respect to the center of the rope region of the rope roll 4 at least in the direction of the roll axis, whereby the rope guide device 14 can guide two hoisting ropes 12, 13 at a distance from the center.
    Figure 3 shows the structure of the first articulation of the support arrangement of a rope guide device according to an embodiment of the invention.
    The first articulation 52 illustrated in Figure 3 comprises two articulation arms 521, 522 rotating about the articulation axis. Said articulation arms 521, 522 rotating about the articulation axis allow pendulum movement in a first direction in a plane perpendicular to the articulation axis of said first articulation 52.
    Said first direction may be the direction of travel of the hoist carriage of a crane, such as a bridge crane.
    Figure 4 shows the structure of the second articulations of the support arrangement of a rope guide device according to an embodiment of the invention.
    The second articulations 53, 54 illustrated in Figure 4 comprise two resilient joints 53, 54 rigidly connected to each other by connecting arms 55. Of said resilient joints 53, 54, the resilient joint 53 on the rope roll side comprises a joint rotating relative to its joint shaft =. correspondingly, of said flexible joints 53, 54, the load-side flexible joint 54 comprises an articulated arm 541 rotating about its pivot axis E. Said second articulations 53, 54 allow pendulum movement in the other direction of said second articulations 53, 54 - A in the direction of the axes connecting the axes.
    Said second direction may be arranged at an angle of substantially 90 degrees to said first direction.
    Said second direction may be the direction of travel of a crane, such as an overhead crane, a hoist bridge of a rope hoist.
    Said second articulations 53, 54 of the rope guide device support arrangement according to the invention may be implemented by means of flexible articulations 53, 54.
    The resilient articulations 53, 54 ensure that no oscillation or vibration is generated in the rope hoist hoisting carriage or in the rope guide device 14 itself due to the different forces that occur in practice during use of the rope guide device 14.
    The aforementioned second articulations 53, 54 may be provided with a coercive force acting on the articulations 53, 54, which moves the rope guide device 14 to the initial position when it is not affected by any external force.
    Fig. 5 is a perspective view of an articulation structure of a support arrangement of a rope guide device according to an embodiment of the invention.
    The support arrangement 51 of the rope guide device illustrated in Fig. 5 comprises a first articulation 52 and associated second articulations 53, 54. Said first articulation 52 comprises two articulation arms 521, 522 rotatable relative to the articulation axis. Said articulation arms 521, 522 rotating about the articulation shaft in a plane perpendicular to the pivot axis of said first articulation 52 in the first direction of the pendulum movement.
    Said first direction may be the direction of travel of a hoist carriage of a crane, such as a bridge crane.
    Said second articulations 53, 54 comprise two resilient joints 53, 54 rigidly connected to each other by connecting arms 55. Of said resilient joints 53, 54, a flexible joint 53 on the rope roll side comprises an articulated arm 531 rotatable about its pivot axis. of the joints 53, 54, the load-side flexible joint 54 comprises an articulated arm 541 rotating about its articulated axis. Said second articulations 53, 54 allow pendulum movement in the second direction in the direction of the axes connecting the articulated shafts of said second articulated paths 53, 54.
    The articulated arm 521 of said first D-articulation 52 may be supported on the frame N of the rope hoist carriage 1. Accordingly, said articulated arm of the load-side flexible joint 54 = 541 may be supported on a rope guide device 14. Said first articulation 52 and said second articulations 53, 54 E are connected to each other by connecting a pivot arm 522 rotating about the pivot shaft of the first articulation 52 to a pivot arm 531 rotatable about the pivot axis of the resilient joint 53 of the second articulation rope roll side. 2 As shown in Figure 5, said second direction is arranged at a substantially 90 N 35 degree angle to said first direction.
    Said second direction may be the direction of travel of a crane, such as an overhead crane, a hoist bridge of a rope hoist.
    Said second articulations 53, 54 of the rope guide device support arrangement according to the invention may be implemented by means of flexible articulations 53, 54. The resilient articulations 53, 54 ensure that no oscillation or vibration is generated in the rope hoist hoisting carriage or in the rope guide device 14 itself due to the different forces that occur in practice during use of the rope guide device 14. The aforementioned second articulations 53, 54 may be provided with a coercive force acting on the articulations 53, 54, which moves the rope guide device 14 to the initial position when it is not affected by any external force. The support arrangement of the rope guide device according to the invention limits the loads entering the rope guide device 14 and its suspension structure.
    Fig. 6 is a perspective view of the structure of the first articulation of the support arrangement of a rope guide device according to an alternative embodiment of the invention. The first articulation 60 of the alternative embodiment of the invention illustrated in Figure 6 comprises an outer frame 61 symmetrically arranged relative to its articulated axis and an inner frame 62 symmetrically arranged inside said outer frame 61 with respect to the articulated axis. .
    The outer frame 61 and the inner frame 62 of the first articulation 60 illustrated in Fig. 6 are adapted to rotate about the articulation axis of the articulation 60. The outer frame 61 of said first articulation 60 may be supported (not shown) on the carriage body 1 of the rope hoist. Accordingly, said inner frame 62 of said first articulation 60 may be supported (not shown) on the second articulations of the rope guide device 14 according to the invention. Said outer frame 61 and the inner frame 62 rotating about an articulated axis allow said first articulation 62 in a plane perpendicular to the articulated axis to move the pendulum in the first direction. Said first direction may be the direction of travel of the hoist carriage of a crane, such as an overhead crane.
    Fig. 7 is a perspective view of the structure of the second names of the support arrangements of the rope guide device according to an alternative embodiment of the invention. The second articulations 70, 80 of the alternative embodiment E of the invention illustrated in Figure 7 comprise outer frames 71, 81 symmetrically arranged with respect to their articulated shafts and inner frames 72, 82 symmetrically arranged inside said outer frames 71, 81 with respect to the articulated shafts of the articulations A 70, 80. said inner frames 72, 82 are supported on said outer frames 71, 81 by flexible support elements 35. The outer frames 71, 81 and inner frames of the second articulations illustrated in Figure 7
    the frames 72, 82 are adapted to rotate about the pivot axes of the articulations. The inner frames 72, 82 of the second articulations 70, 80 of the alternative embodiment of the invention are rigidly connected to each other by connecting arms 75.
    The second articulations 70, 80 of an alternative embodiment of the invention thus comprise two resiliently articulated joints 70, 80 rigidly connected to each other by connecting arms 75. Of these resilient joints 70, 80, a flexible joint 70 on the rope roll side (not shown in the figure) may be supported. - to the first articulation 60 of said rope guide device 14. Accordingly, of said resilient joints 70, 80, a load-side resilient joint 80 may be supported (not shown) in a rope guide device 14 according to the invention. said second joints 70, 80 allow pendulum movement 70 in the second direction. 80 in the direction of the axes connecting the PTO shafts. Said second direction may be arranged at a substantially 90 degree angle to said first direction. Said second direction may be the direction of travel of a crane, such as an overhead crane, a hoist bridge of a rope hoist.
    Said second articulations 70, 80 of the support arrangement of the rope guide device according to the invention are realized by means of flexible articulations 70, 80 supported by resilient support elements. The flexible articulations 70, 80 ensure that no oscillation or vibration is generated in the rope hoist hoisting carriage or in the rope guide device 14 itself due to the different forces actually occurring in use of the rope guide device 14. Further, said second articulations 70, 80 are provided with resilient support elements by means of a coercive force acting on the articulations 70, 80, which moves the rope guide device 14 to the initial position when it is not affected by any external force. Fig. 8 is a perspective view of the articulation structure D of a support arrangement of a rope guide device according to an alternative embodiment of the invention. The support arrangement 50 of the rope guide device illustrated in Fig. 8 comprises N first articulations 60 and second articulations 70, 80 connected thereto. Said first articulation 60 comprises an outer frame 61 symmetrically aligned with its articulated shaft and articulated 60 into said articulated shaft E 60 of said outer frame 61. an inner frame 62 symmetrically fitted with respect to said outer frame 62o is supported on said outer frame 61 by resilient support elements 66-69. The outer frame 61 and the inner frame 62 of the first articulation 60 described in Fig. 6 of Fig. A are adapted to rotate about the articulation axis of the articulation 60. Said outer frame 61 and the inner frame 62 rotating around the back of the articulated axle N 35 allow said first articulation 62 in a plane perpendicular to the articulated axis of the pendulum to move in the first direction.
    Said first direction may be the direction of travel of a hoist carriage of a crane, such as a bridge crane.
    Said second articulations 70, 80 comprise outer frames 71, 81 symmetrically arranged relative to their articulated shafts and inner frames 72, 82 symmetrically arranged inside said outer frames 71, 81 relative to the articulated axis of the articulated shafts 70, 80. Said inner frames 72, 82 are supported on said outer frames with support elements.
    The outer frames 71,81 and the inner frames 72, 82 of the second articulations illustrated in Figure 7 are adapted to rotate about the articulated shafts of the articulations.
    The inner frames 72, 82 of the second articulations 70, 80 of the alternative embodiment of the invention are rigidly connected to each other by connecting arms 75. Said second articulations 70, 80 allow pendulum movement in the second direction in the direction of the axes connecting the articulated shafts of said second articulations 70, 80.
    The outer frame 61 of said first articulation 60 may be supported (not shown) on the rope hoist carriage body 1. Correspondingly, of said flexible joints 70, 80, a load side flexible joint 80 may be supported (not shown) on a rope guide device 14 according to the invention. in the support arrangement 50 of the rope guide device according to the alternative embodiment, said first articulation 60 and said second articulations 70, 80 are connected to each other by rigidly connecting the inner frame 62 of the first articulation 60 to the outer frame 71 of the second articulation, for example by means of a connecting arm 65.
    As shown in Figure 8, said second direction is arranged at a substantially 90 degree angle to said first direction.
    Said second direction may be the direction of travel of a crane, such as an overhead crane, a hoist bridge of a rope hoist.
    Said first direction may also be a direction other than the direction of travel of the hoist carriage of the crane rope hoist, said second DO direction being arranged at a substantially 90 degree angle to said first N direction.
    The support arrangement of the rope guide device according to the invention limits the loads to the rope guide device 14 and its suspension structure.
    The support arrangement of the rope guide device according to the invention may comprise said first articulation 60 and said second articulations 70, 80, or A alternatively one or more articulations in addition to said first articulation 60 and said second articulations 70, 80.
    Regardless of the number of articulations comprised in the support arrangement of the rope guide device N35 according to the invention, the interaction of said articulations is that they provide directions of movement of two degrees of freedom and that there is a substantially 90 degree rotation or rotation between said directions of movement. Figure 9 shows an overview of a rope guide device for a rope hoist according to an embodiment of the invention. The rope guide device 14 according to Fig. 9 comprises at least one guide element 15, 16 for guiding the hoisting rope 12, 13 of the rope hoist. By guide element 15, 16 is meant a structure in which a lifting rope (not shown) is guided through or between the structures or parts thereof in order to limit the movement of the rope, for example lateral movement, and / or to change the direction of the rope. The rope guide rope guide device according to an embodiment of the invention comprises a screw 17, 18 for moving said at least one guide element 15, 16, said screw 17, 18 comprising a first screw part 17 and a second screw part 18. A first thread of said first screw part 17 is arranged opposite to the second thread of the second screw part 18, but otherwise similar. The screw 17, 18 of the rope guide device of the rope hoist according to the embodiment of the invention is thus divided into a right-handed screw part 17 and a left-handed screw part 18. Depending on the embodiment described here, the guide elements 15, 16 are arranged to move in opposite directions. In an alternative embodiment, the control elements may be adapted to move in the same direction relative to each other.
    Said first screw part 17 and the second screw part 18 are connected to each other by a coupling which is supported and mounted in the middle of the screw part 17, 18 by its connecting part. The support of the first screw part 17 and the second screw part 18 provided by said coupling is implemented so that the direction of movement in the longitudinal axis of said first screw part 17 and said second screw part 18 is free. The rope guide device 14 according to an embodiment of the invention further comprises an operating device, by means of which operating device the first screw part 17 and the second screw part 18 of said screw 17, 18 can thus be driven, i.e. rotated, simultaneously.
    Fig. 10 shows a detailed view of a rope guide device for a rope hoist according to an embodiment N 30 of the invention. The rope guide device 14 according to Fig. 10 comprises at least one guide element 15, 16 for guiding the rope hoist lifting rope 12, 13. The rope guide device of the rope hoist A according to an embodiment of the invention comprises a screw 17, 18 for moving said at least one guide element 2 15, 16, said screw 17, 18 comprising a first screw part N 35 17 and a second screw part 18. A first thread of said first screw part 17 is arranged in a second screw part 18 opposite to the thread, but otherwise similar.
    Figure 10 also shows the hoisting ropes 12, 13 of the rope guide device 14 according to an embodiment of the invention, which hoisting ropes 12, 13 are guided to pass through or between the structures of said guide element 15, 16 or parts thereof.
    In addition, a detailed view of Fig. 10 shows a switch 20. Said switch 20 connects said first screw part 17 and said second screw part 18 to each other.
    Said coupling 20 is supported and bearinged in the middle of the connecting part of the screw 17, 18.
    The support of the first screw part 17 and the second screw part 18 provided by said switch 20 is realized so that the direction of movement in the longitudinal axis of said first screw part 17 and said second screw part 18 is free.
    As shown in Fig. 10, the coupling switch 20 of said first screw part 17 and said second screw part 18 is supported radially so that said coupling 20 is free to move in the horizontal direction.
    The screw 17, 18 of the rope guide device 14 according to the embodiment of the invention is mounted at both ends so that said bearing receives axial forces.
    Thus, no axial forces are applied to the coupling 20 at the split point of said first screw portion 17 and said second screw portion 18 of said screw 17, 18.
    In this way, the coupling point of the switch 20 acts as a buckling support, preventing radial movement of the support structure, but allowing horizontal movement of the support structure.
    The screw 17, 18 of the rope guide device 14 according to the embodiment of the invention is thus implemented by two separate, interconnected threaded screw parts 17, 18. According to another embodiment of the invention, the rope guide device itself is also implemented by two separate interconnected rope guide device parts.
    Depending on the embodiment described here, the control elements 15, 16 are arranged to move in opposite directions to each other.
    D In an alternative embodiment, the control elements may be arranged to move N in the same direction relative to each other. = The above embodiments of the rope guide device of the rope hoist N 30 according to the invention mainly describe rope hoists arranged on two hoisting ropes, in which the rope is of the form 2 X N.
    The rope guide device of the rope hoist 3 according to the invention can also be used in rope hoists io arranged on one hoisting rope, in which the rope is of the form 1 XN.
    S By means of the rope control device of the rope hoist according to the invention, the hoisting rope of the hoisting device can be safely and evenly guided by the rope guide of the hoisting device.
    when wound on one or more layers. By means of the rope guide device of the rope hoist according to the invention, the forces acting on, among other things, the rope hoist and the rope guide device of the rope hoist can be damped better than previous solutions.
    It will be apparent to those skilled in the art that in other respects, the solutions may correspond, mutatis mutandis, to the embodiments set forth elsewhere in this specification and the accompanying drawings, or combinations thereof. It will be apparent to one skilled in the art that as technology advances, the basic idea of the invention can be implemented in many different ways. Thus, the invention and its embodiments are not limited to the examples described above but may vary within the scope of the claims. o O
    N 0 I O OF
    I a a O LO OF LO O O OF
    权利要求:
    Claims (19)
    [1]
    A rope guide device (14) for guiding a hoisting rope (12, 13) onto a rope roll (4), which rope roll (4) is adapted to rotate to wind the hoisting rope (12, 13) around the rope roll (4) or to lift it off the rope roll (4) - for raising and lowering a load applied to the rope (12, 13), the rope guide device (14) comprising: - at least one guide element (15, 16) for guiding the hoisting rope (12, 13) of the rope hoist, and - a screw (17, 18) for said at least for moving one control element (15, 16), characterized in that: the rope guide device (14) is supported on the frame (1) of the rope hoist carriage by means of a support arrangement (31, 41, 50, 51), which support arrangement (31, 41, 50, 51 ) - comprises: - first articulations (32, 42, 52, 60), and - second articulations (33, 34, 43, 44, 53) arranged at a substantially 90 degree angle to said first articulations (32, 42, 52, 60), 54, 70, 80).
    [2]
    Rope guide device (14) according to claim 1, characterized in that said second articulations (33, 34, 43, 44, 53, 54, 70, 80) are adapted to said first articulations (32, 42, 52, 60). below.
    [3]
    Rope guide device (14) according to claim 1, characterized in that said second articulations (33, 34, 43, 44, 53, 54, 70, 80) are> adapted to said first articulations (32, 42, 52, 60) above. Rope guide device (14), N 30 according to any one of claims 1 to 3, characterized in that said second articulations (33, 34, 43, 44, 53, 54, 70, 80) E are realized by interconnected parallel rope reel sides. - S with free joints (33, 43, 53, 70) and load side joints (34, 44, io 54, 80).
    [4]
    NN
    [5]
    Rope guide device (14) according to claim 4, characterized in that said rope roll side joints (33, 43, 53, 70) are rigidly connected to said load side joints (34, 44, 54, 80) by connecting arms (55, 75). ).
    [6]
    Rope guide device (14) according to any one of claims 1 to 5, characterized in that said first articulations (32, 42, 52, 60) are implemented with pin articulations or limited, damped and / or self-centering articulations (32, 42, 52, 60).
    [7]
    Handrail control device (14) according to any one of claims 1 to 6, characterized in that said second articulations (33, 34, 43, 44, 53, 54, 70, 80) are implemented with limited, damped and / or self-centering articulations (33, 34, 43, 44, 53, 54, 70, 80).
    [8]
    Rope guide device (14) according to any one of claims 1 to 7, characterized in that said first articulations (60) comprise an outer frame (61) symmetrically arranged with respect to its articulated axis and articulating (60) an articulated support (60) symmetrically with respect to the articulated shaft of said outer frame (61). (66-69) of the supported inner frame (62).
    [9]
    Rope guide device (14) according to any one of claims 1 to 8, characterized in that said second articulations (70, 80) comprise outer frames (71, 81) arranged symmetrically with respect to their articulated shafts and articulations within said outer frames (71, 81). (70, 80) inner frames (72, 82) symmetrically arranged with respect to the articulated shafts and supported by resilient support elements.
    o
    [10]
    Rope guide device (14), D according to any one of claims 1 to 9, characterized in that a coercive force is applied to said second articulations (33, 34, 43, 44, 53, 54, N 70, 80) to guide the rope guide device (14) initially. position.
    & 30 E
    [11]
    Rope guide device o (14) according to any one of claims 1 to 10, characterized in that said screw (17, 18) comprises A - a first screw part (17) comprising a first thread, and 2 - a corresponding screw part similar to said first thread. a second screw portion (18) having a second thread in the fireplace direction,
    which said first and second screw parts (17), (18) are connected to each other by a switch (20) at the distribution point.
    [12]
    Rope guide device (14) according to any one of claims 1 to 10, characterized in that said screw (17, 18) comprises - a first screw part (17) comprising a first thread, and - a second screw part comprising a parallel second thread similar to said first thread (18), said first and second screw parts (17), (18) being connected to each other by a switch (20) at the distribution point.
    [13]
    Rope guide device (14) according to claim 11 or 12, characterized in that said first and second screw parts (17), (18) are mounted at both ends of said screw (17, 18).
    [14]
    Rope guide device (14) according to any one of claims 11 to 13, characterized in that the connecting part of said first and second screw parts (17), (18) is supported and / or mounted so that said first and second screw parts (17, 18 ) the direction of movement along the longitudinal axis is free.
    [15]
    Rope guide device (14) according to any one of claims 11 to 14, characterized in that said rope guide device (14) is implemented with two separate rope guide device parts connected to each other.
    [16]
    Rope guide device o (14) according to any one of claims 1 to 15, characterized in that said screw (17, 18) for moving said at least one guide element (15, 16) is a ball screw (17, 18). 3 5
    [17]
    A rope hoist hoisting carriage comprising a rope guide device (14) according to any one of claims 1 to 16.
    E o
    [18]
    A rope hoist comprising a rope guide device (14) according to any one of claims 1 to 16.
    O N 35
    [19]
    A bridge crane comprising a rope guide device (14) according to any one of claims 1 to 16.
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    同族专利:
    公开号 | 公开日
    FI128653B|2020-09-30|
    CN113614019A|2021-11-05|
    WO2020201622A1|2020-10-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB543323A|1940-10-21|1942-02-19|Leith Cardle And Company Ltd|Improvements relating to hoist blocks, cranes, winches and the like|
    DE4241655C1|1992-12-04|1994-04-21|Mannesmann Ag|Rope guide for lifting winding mechanism - has rail with guides arranged on mechanism transverse to winding drum and around pivot axis parallel to rotary axis of drum|
    NO328258B1|2006-04-10|2010-01-18|Sevan Marine As|Device and method of a winch for retraction of a riser to a fixed or floating installation at sea|
    CN102336375A|2011-09-02|2012-02-01|纽科伦（新乡）起重机有限公司|Rope guider and electric hoist using same|
    CN105329794A|2015-12-10|2016-02-17|重庆探矿机械厂|Drilling machine and rope coring winch thereof|
    法律状态:
    2020-09-30| FG| Patent granted|Ref document number: 128653 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20195250A|FI128653B|2019-03-29|2019-03-29|Rope guide for a rope hoist crane|FI20195250A| FI128653B|2019-03-29|2019-03-29|Rope guide for a rope hoist crane|
    PCT/FI2020/050202| WO2020201622A1|2019-03-29|2020-03-27|Rope guiding device of rope hoist|
    CN202080016668.9A| CN113614019A|2019-03-29|2020-03-27|Rope guide for a winch|
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