Rope disorder prevention device for steel wire rope of crane

Abstract

The utility model discloses a rope disorder prevention device for a steel wire rope of a crane, which comprises a roller bracket arranged on an arm frame between a winding speed reducing mechanism and an arm head guide wheel of the crane or a lifting mechanism bracket, and the roller bracket comprises vertical plates which are distributed on two sides and have parallel plate surfaces; a rope stopper and a supporting shaft are fixedly arranged between the inner plate faces of the vertical plates on the two sides, a roller is installed on the supporting shaft, the rope stopper is arranged on the side of the top of the supporting shaft in parallel, and a steel wire rope groove matched with a steel wire rope is formed in the surface of the roller. The steel wire rope is wound on a winding drum on the winding speed reduction mechanism from the arm head guide wheel through a steel wire rope groove in the roller, and in the winding and unwinding process of the steel wire rope, the roller is driven by the pulling force of the steel wire rope and the lateral force of rope arrangement of the winding drum to rotate around the supporting shaft and slide in the axial direction of the supporting shaft. The device can be freely installed on a cantilever crane or a hoisting mechanism, is simple in structure and high in reliability, and can solve the problem that the steel wire rope is disordered due to the change of a rope inlet angle in a steel wire rope path.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of engineering machinery, in particular to a crane wire rope anti-tangle device. BACKGROUND

[0002] The crane generally realizes the lifting and unloading operation of heavy objects through the lifting mechanism. The lifting mechanism is usually composed of a prime mover, a speed reducer, a drum, a brake, a clutch, a steel wire rope pulley set and a hook. According to the different transmission modes, it can be divided into mechanical transmission, electric transmission and hydraulic transmission types. Among them, the hydraulic transmission type is widely used in cranes due to its simple transmission, good starting and braking performance and other advantages. With the development of hydraulic technology, the current lifting speed is also constantly improved, and the speed reducer drum rotation speed is also improved. With the increase of lifting height, the winding amount of the drum on the lifting mechanism increases accordingly, and the steel wire rope needs to be wound on the drum for multiple layers and frequently wound and unwound, which is easy to accumulate or misplace on the drum, resulting in steel wire rope climbing and tangle. This situation not only easily increases the wear and deformation of the steel wire rope, but also may cause serious safety accidents.

[0003] Patent (CN203319604U) discloses a kind of ship crane lifting mechanism anti-tangle device, the crane lifting mechanism anti-tangle device, including drum, rope presser and rope presser support, rope presser cooperates with drum and tightens steel wire rope, rope presser support supports rope presser, spiral groove is arranged on the outer surface of rope presser, and rope presser and drum form line contact, so that steel wire rope can be tightened to prevent tangle. However, the anti-tangle device needs to be installed with rope presser and its support, which requires a large installation space for the lifting mechanism, and the spiral groove on the outer surface of the rope presser requires high machining.

[0004] Patent (CN221141003U) discloses a kind of drum set for crane, the drum set for crane, including two vertical versions, anti-line mechanism, guide mechanism, first driving mechanism, box body, two cleaning mechanisms, second driving mechanism. When in use, one end of the steel wire rope passes through the guide mechanism, the first driving mechanism is started, the anti-line mechanism is synchronously driven to prevent the steel wire rope, the guide mechanism drives the box body to guide the steel wire rope, and the unwinding of the steel wire rope is completed. Start the first driving mechanism in reverse to wind the steel wire rope and drive the guide mechanism to move in reverse, so that the steel wire rope is neatly wound on the winding and unwinding mechanism, preventing tangle. When winding the steel wire rope, start the second driving mechanism to drive the two cleaning mechanisms to rotate and clean the outer surface of the steel wire rope. The drum set requires a large space and is not suitable for cranes with narrow installation space. In addition, the structure is complex, which increases the failure points and the maintenance cost in the later period.

[0005] In summary, the crane basically adopts the auxiliary device such as the rope presser or the rope arranging device with the belt driving mechanism to avoid the rope disorder phenomenon, but the above two structures are complex and require large space, and are not suitable for the crane with high space requirement. SUMMARY

[0006] In view of the deficiencies of the prior art, the crane steel wire rope anti-disorder device can be freely installed on the boom or the hoisting mechanism, has simple structure and high reliability, and can solve the problem of the steel wire rope disorder caused by the change of the rope entering angle in the steel wire rope path.

[0007] The technical scheme provided by the utility model is shown as follows:

[0008] The utility model provides a crane steel wire rope anti-disorder device, including the pulley reduction mechanism and the arm head guide wheel between the arm support of crane and the roller bracket on the hoisting mechanism support, the roller bracket includes the vertical board of board face parallel distribution in both sides, the inner board face of both sides vertical board is solid and is equipped with the rope fender and the support shaft, be installed with the roller on the support shaft, the rope fender is in parallel with the top side of support shaft, the roller surface is equipped with the steel wire rope groove matched with steel wire rope, the steel wire rope is from the arm head guide wheel and is connected in the steel wire rope groove on the roller on the pulley reduction mechanism, in the process that the steel wire rope is reeled and unreeled, the roller is driven to rotate around the support shaft and slides along its axial direction by the tension of the steel wire rope and the lateral force of the rope arranging of the drum.

[0009] Further, the distance between the support shaft and the rope fender is 1 / 3 of the diameter of the steel wire rope, and the rope fender is fixed on the two side vertical boards of the roller bracket by an R-shaped buckle.

[0010] Further, the roller includes a pulley and a bearing, the bearing is fixedly installed in the inner hole of the pulley, and the support shaft is fixedly installed in the inner hole of the bearing.

[0011] Further, the bearing is a self-lubricating bearing.

[0012] Further, the bearing is provided with a retainer groove in the middle, and an elastic retainer is arranged in the retainer groove to clamp the two end faces of the pulley.

[0013] Further, the two sides of the pulley are provided with cover plates, a plurality of threaded holes are formed in the cover plates and the pulley in a circumferential direction, and the cover plates are fixed on the pulley by fastening screws penetrating the threaded holes.

[0014] Further, the outer circle of the pulley is provided with a steel wire rope groove.

[0015] Further, the bottom of the two side vertical boards of the roller bracket is provided with a mounting base, a mounting hole is formed in the mounting base, and the mounting base is connected with the crane boom or the hoisting mechanism support by screws penetrating the mounting hole.

[0016] Further, the support shaft is sleeved with a shaft sleeve at both ends.

[0017] Advantageous effects

[0018] 1. The crane steel wire rope anti-tangle device can be freely installed on an arm support or a lifting mechanism, simultaneously rotates and moves along an axis relative to a support shaft through the movement of the steel wire rope, thereby solving the problem of steel wire rope tangling, effectively prevents the problem of steel wire rope tangling, has simple structure, high reliability, and can be widely applied to the field of cranes, and is particularly suitable for cranes with small lifting mechanism installation space.

[0019] 2. The crane steel wire rope anti-tangle device can effectively solve the problem of steel wire rope tangling caused by the change of the entry angle of the steel wire rope due to the change of the support point in the path of the steel wire rope. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of a crane steel wire rope anti-tangle device according to an embodiment of the present utility model;

[0021] Figure 2 is a structural schematic view of a roller of a crane steel wire rope anti-tangle device according to an embodiment of the present utility model.

[0022] Legend: 1, roller; 101, pulley; 102, cover plate; 103, bearing; 104, fastening screw; 105, elastic check ring; 2, rope stop; 3, shaft sleeve; 4, roller bracket; 5, support shaft; 6, winding drum; 7, steel wire rope DETAILED DESCRIPTION

[0023] The present utility model will be further described below in combination with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0024] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0025] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0026] Embodiment 1

[0027] The utility model provides a kind of crane wire rope anti-tangle device, including the roller bracket 4 between the arm head guide wheel of winch reduction mechanism and the arm support of crane or hoisting mechanism support, the roller bracket 4 includes the vertical plate of the board face parallel distributed in two sides, the inner plate of two sides of vertical plate is fixed with rope block 2 and support shaft 5, the roller 1 is installed on support shaft 5, the rope block 2 is parallelly arranged in the top side of support shaft 5, the surface of the roller 1 is equipped with the steel wire rope groove matched with steel wire rope 7, the steel wire rope 7 is wound on the drum 6 on winch reduction mechanism from the arm head guide wheel through the steel wire rope groove on roller 1, in the process of winding and unwinding of steel wire rope 7, the roller 1 is driven to rotate around support shaft 5 and slide along its axial direction by the tension of steel wire rope 7 and the lateral force of drum rope.

[0028] The utility model provides a kind of crane anti-tangle roller device, based on the traditional hoisting mechanism, add roller device, can be freely installed on arm support or hoisting mechanism, rotate and move along the axis relative to support shaft by the movement of steel wire rope to solve the problem of steel wire rope tangle.

[0029] Embodiment 2

[0030] The utility model provides a kind of crane wire rope prevents disorder rope device, the device includes gyro wheel 1, rope 2, shaft sleeve 3, gyro wheel bracket 4, support shaft 5 and wire rope 7, gyro wheel bracket 4 is located on the arm support between the winch reduction mechanism and arm head guide wheel of crane or hoisting mechanism support, support shaft 5, rope 2 are fixed on the two sides of gyro wheel bracket 4 simultaneously, rope 2 is parallel with support shaft 5 and is located at its top side, gyro wheel 1 surface is equipped with the wire rope groove matched with wire rope, gyro wheel 1, shaft sleeve 3 are installed on support shaft 5, specifically, shaft sleeve 3 is set on both ends of support shaft 5, when gyro wheel 1 moves left and right on support shaft 5 with wire rope, under the interval effect of both sides shaft sleeve 3, gyro wheel 1 always does not move to the limit position of both ends of support shaft 5, and it at least keeps the spacing of one shaft sleeve 3 width with the end structure of support shaft 5, can avoid gyro wheel 1 and the end structure of support shaft 5 interfere with and affect normal operation, when wire rope 7 is wound and released, wire rope 7 is simultaneously subjected to the lateral force of winding drum 6 and the tension of hoisting load, gyro wheel 1 rotates and moves along axis relative to support shaft 5 simultaneously with the movement of wire rope 7, to effectively solve wire rope disorder problem, support shaft 5 bears gyro wheel 1 axle pressure and lateral force for a long time, it is suggested to select high hardness material to prevent abrasion, and surface treatment is carried out simultaneously to prevent rust, to guarantee the smoothness of gyro wheel 1 movement.

[0031] In the embodiment, as shown in Figure 1 , the distance between rope 2 and support shaft 5 is about 1 / 3 of the diameter of wire rope, and rope 2 is fixed on the two side plates of gyro wheel bracket 4 by R-shaped buckle, to ensure the cooperation of wire rope 7 and gyro wheel 1 and prevent wire rope from coming out of the rope groove of gyro wheel 1.

[0032] In the embodiment, as shown in Figures 1-2 , gyro wheel 1 includes bearing 103 and pulley 101, the bearing is fixedly installed in the inner hole of the pulley, the support shaft is fixedly installed in the inner hole of the bearing, the inner ring of the bearing is fixed with support shaft 5, and the outer ring of the bearing is fixed with pulley 101, so that gyro wheel 1 rotates and moves along the axis relative to support shaft 5 simultaneously with the movement of wire rope 7, it is suggested to select self-lubricating bearing for bearing 103, bearing 103 limits the axial movement of gyro wheel 1, ensures the entry angle of wire rope 7 on winding drum 6, and wire rope 7 passes through the wire rope groove on gyro wheel 1 from arm head guide wheel to winding drum 6 of winch reduction mechanism (in addition, pulley and support shaft can also be used to realize clearance fit).

[0033] In the embodiment, the middle part of the bearing is provided with a retainer groove, and an elastic retainer 105 is arranged in the retainer groove to clamp the two end faces of the pulley.

[0034] In the embodiment, the two sides of the pulley are provided with cover plates 102, a plurality of threaded holes are formed in the cover plates 102 and pulley 101 in circumferential direction, and the cover plates are fixed on pulley 101 by fastening screws 104 penetrating the threaded holes.

[0035] In the embodiment, the outer circle of the pulley 101 is provided with a steel wire rope groove.

[0036] In the embodiment, the bottom of the two side vertical plates of the roller bracket 4 is provided with a mounting base, the mounting base is provided with a mounting hole, and the mounting base is connected with the crane boom or the lifting mechanism support through the mounting hole by a screw.

[0037] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present application, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present application. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical solution of the present application, which does not depart from the content of the technical solution of the present application, belongs to the protection scope of the present application.

Claims

1. A crane wire rope anti-tangle device, characterized in that, The crane includes a roller bracket arranged on the boom or the lifting mechanism support between the hoist reduction mechanism and the boom head guide wheel, the roller bracket includes two side vertical plates parallel to the plate surface, the inner plate surface of the two side vertical plates is fixed with a rope stopper and a support shaft, the support shaft is installed with a roller, the rope stopper is arranged in parallel on the top side of the support shaft, the roller surface is provided with a steel wire rope groove matched with the steel wire rope, the steel wire rope is wound on the drum of the hoist reduction mechanism through the steel wire rope groove on the roller, and in the steel wire rope winding and unwinding process, the roller is driven to rotate around the support shaft and slide along the axial direction of the support shaft under the tension of the steel wire rope and the lateral force of the drum.

2. Crane wire rope anti-tangle device according to claim 1, characterized in that The distance between the support shaft and the rope stopper is 1 / 3 of the diameter of the steel wire rope, and the rope stopper is fixed on the two side vertical plates of the roller bracket by an R-shaped buckle.

3. Crane wire rope anti-tangle device according to claim 1, characterized in that, The roller includes a pulley and a bearing, the bearing is fixedly installed in the inner hole of the pulley, and the support shaft is fixedly installed in the inner hole of the bearing.

4. Crane wire rope anti-tangle device according to claim 3, characterized in that The bearing is a self-lubricating bearing.

5. Crane wire rope anti-tangle device according to claim 3, characterized in that The middle part of the bearing is provided with a retainer groove, and the retainer groove is provided with an elastic retainer to clamp the two end faces of the pulley.

6. Crane wire rope anti-tangle device according to claim 3, characterized in that The two sides of the pulley are provided with cover plates, a plurality of threaded holes are formed in the cover plates and the pulley in a circumferential direction, and the cover plates are fixed on the pulley by fastening screws penetrating the threaded holes.

7. Crane wire rope anti-tangle device according to claim 3, characterized in that The outer circle of the pulley is provided with a steel wire rope groove.

8. The hoist wire rope anti-tangle device of claim 1, wherein, The bottom of the two side vertical plates of the roller bracket is provided with a mounting base, the mounting base is provided with a mounting hole, and the mounting base is connected with the crane boom or the lifting mechanism support through screws penetrating the mounting hole.

9. The hoist wire rope anti-tangle device of claim 1, wherein, The two ends of the support shaft are provided with shaft sleeves. The two ends of the support shaft are provided with shaft sleeves.

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