CN216519482U

CN216519482U - QD bridge crane main hook fixed pulley wire rope anticreep device

Info

Publication number: CN216519482U
Application number: CN202123018750.6U
Authority: CN
Inventors: 刘东伟
Original assignee: Guangdong Jinggong Steel Building Co ltd
Current assignee: Guangdong Jinggong Steel Building Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-05-13
Anticipated expiration: 2031-12-02

Abstract

The utility model discloses a QD bridge crane main hook fixed pulley steel wire rope anti-drop device, which comprises two support plates which are arranged in parallel in opposite directions, wherein a fixed shaft and anti-drop groove components which are symmetrically arranged relative to the fixed shaft are arranged between the two support plates, a fixed pulley block is arranged on the fixed shaft, and the gap between the outermost edge of the fixed pulley block and the anti-drop groove components at the opposite position is smaller than the diameter of the steel wire rope.

Description

QD bridge crane main hook fixed pulley wire rope anticreep device

Technical Field

The utility model relates to the technical field of bridge crane equipment, in particular to a QD bridge crane main hook fixed pulley steel wire rope anti-falling device.

Background

In a QD bridge crane used in the steel structure industry and other heavy industry, in a hoisting mechanism, pulleys support and guide rope movement to play two roles of guiding and balancing. The pulley block is formed by a certain number of penetrating and winding of movable pulleys and fixed pulleys, and has the characteristics of both the movable pulleys and the fixed pulleys. The pulley block can change the direction of force and save labor. The pulley block composed of steel wire rope, fixed pulley and movable pulley is an important component of crane lifting mechanism, and is a fixed pulley which is matched with hook group and fixed on the structure.

Due to the limitation of use sites, field working conditions and crane design defects, the main hook fixed pulley block steel wire rope is often separated from the groove in the use process, and due to the fact that the fixed pulley block is 10 meters away from the ground, users cannot find the main hook fixed pulley block steel wire rope and the fixed pulley block steel wire rope in time, the steel wire rope and a fixed pulley block shaft are seriously abraded, great potential safety hazards exist, and meanwhile, due to the fact that the length of the steel wire rope is long, the cost for replacing the abraded steel wire rope is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design an anti-falling device for a QD bridge crane main hook fixed pulley steel wire rope, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the QD bridge crane main hook fixed pulley steel wire rope anti-disengaging device comprises two supporting plates which are arranged in parallel in opposite directions, a fixed shaft and anti-disengaging groove assemblies symmetrically arranged relative to the fixed shaft are arranged between the two supporting plates, a fixed pulley block is mounted on the fixed shaft, and the gap between the outermost edge of the fixed pulley block and the anti-disengaging groove assemblies in the opposite positions is smaller than the diameter of a steel wire rope.

Furthermore, the anticreep groove subassembly includes the rotation axis, cup joint in the bearing at the both ends of rotation axis and joint in bearing support on the bearing.

Furthermore, a square clamping groove is formed in the supporting plate, and first square protruding blocks corresponding to the square clamping grooves are arranged at two ends of the fixing shaft.

Furthermore, the back of the supporting plate opposite to the square clamping groove is provided with a countersunk through hole, the countersunk through hole is located at the center of the square clamping groove, the two ends of the fixing shaft are provided with first threaded holes, and a bolt sequentially penetrates through the countersunk through hole and the first threaded holes to fix the fixing shaft on the supporting plate.

Furthermore, a U-shaped groove is formed in the supporting plate, a second square protruding block is arranged on the bearing support, and the side length of the square cross section of the second square protruding block is equal to the groove width of the U-shaped groove.

Furthermore, a second threaded hole is formed in the second square protruding block, and a bolt sequentially penetrates through the through hole of the fixing block and the second threaded hole to fix the bearing support on the supporting plate.

The utility model has the beneficial effects that: compared with the prior art, the anti-disengaging device for the QD bridge crane main hook fixed pulley steel wire rope is characterized in that anti-disengaging groove components are arranged on two sides of a fixed pulley block, and the gap between the outermost edge of the fixed pulley block and the anti-disengaging groove components at opposite positions is smaller than the diameter of the steel wire rope, so that the steel wire rope is prevented from being disengaged due to inclination or deviation, the abrasion between the steel wire rope and the fixed pulley block caused by disengagement is reduced, the potential safety hazard is eliminated, the safety of equipment is ensured, and the replacement cost caused by corresponding loss is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an overall schematic view of a QD bridge crane main hook fixed pulley steel wire rope anti-drop device of the utility model;

fig. 2 is an exploded view of the QD bridge crane main hook fixed pulley wire rope anti-drop device of the present invention;

the names of the components identified in the figures are as follows: 1. a support plate; 11. a square clamping groove; 12. countersunk through holes; 13. a U-shaped groove; 2. the anti-slot-off component; 21. a bearing support; 211. a circular slot; 212. a second square bump; 213. a second threaded hole; 22. a bearing; 23. a rotating shaft; 3. a fixed shaft; 31. a first square bump; 32. a first threaded hole; 4. a fixed pulley block; 41. a pulley groove; 5. a fixed block; 11. a square clamping groove; 12. countersunk through holes; 13. a U-shaped groove; 21. a bearing support; 22. a bearing; 23. a rotating shaft.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-2, the QD bridge crane main hook fixed pulley steel wire rope anti-drop device comprises two support plates 1 which are arranged in parallel in opposite directions, a fixed shaft 3 and anti-drop groove components 2 which are symmetrically arranged relative to the fixed shaft 3 are arranged between the two support plates 1, a fixed pulley block 4 is arranged on the fixed shaft 3, a hoisting steel wire rope is hung and collided or inevitably askew in the running process of a crane, the gap between the outermost edge of the fixed pulley block 4 and the anti-drop groove components 2 in opposite positions is smaller than the diameter of the steel wire rope, the steel wire rope can be blocked by the anti-drop groove components 2, and the steel wire rope cannot drop out of a pulley groove 41 accidentally.

The anticreep groove subassembly 2 includes rotation axis 23, cup joints the bearing 22 at the both ends of rotation axis 23 and the bearing support 21 of joint on the bearing, and one set of anticreep groove subassembly 2 comprises a rotation axis 23, two bearings 22, two bearing supports 21, and the both ends of rotation axis 23 cup joint a bearing 22 respectively, and each joint is in respective bearing support 21, and rotation axis 23 rotates along with wire rope operation, has reduced the friction between rotation axis 23 and the wire rope, has protected wire rope, has also reduced the stress of rotation axis 23.

The supporting plate 1 is provided with the square clamping groove 11, the two ends of the fixing shaft 3 are provided with the first square protruding blocks 31 corresponding to the square clamping groove 11, the first square protruding blocks 31 are matched with the square clamping groove 11, the fixing shaft 3 cannot loosen and rotate along with the rotation of the fixed pulley block 4, and the stability of the fixing shaft 3 is guaranteed.

The countersunk through hole 12 is formed in the other side, opposite to the square clamping groove 11, of the supporting plate 1, the countersunk through hole 12 is convenient to lock the supporting plate 1, meanwhile, a bolt head is arranged in the countersunk through hole 12, the appearance is more attractive, the countersunk through hole 12 is located in the center of the square clamping groove 11, first threaded holes 32 are formed in two ends of the fixing shaft 3, the bolt sequentially penetrates through the countersunk through hole 12 and the first threaded holes 32, the fixing shaft 3 is fixed on the supporting plate 1, the fixing shaft 3 is further stabilized, and the device is more firm.

U type groove 13 has been seted up to backup pad 1, and bearing 21 is equipped with second square protruding block 212, and the square cross-section side length of second square protruding block 212 equals with the groove width in U type groove 13, and the length of second square protruding block 212 is less than or equal to the thickness of backup pad 1, is greater than the third of the thickness of backup pad 1, guarantees more reliably of bearing 21 installation.

The second square bump 212 is provided with a second threaded hole 213, a bolt sequentially penetrates through the through hole of the fixing block 5 and the second threaded hole 213, the bearing support 21 is fixed on the supporting plate 1, the bearing support 21 can move in the U-shaped groove 13 and is locked at a specific position by being matched with the fixing block 5, the use of steel wire ropes with different diameters can be realized by replacing another device, the distance between the anti-groove components 2 on two sides can be adjusted by the structure, the replacement of the middle fixed pulley block 4 can be realized, and the cost output is saved.

The working principle of the embodiment is as follows: the support plate 1, the fixed shaft 3 and the fixed pulley block 4 on one side are assembled in advance, the steel wire rope is placed in the pulley groove 41 of the fixed pulley block 4, the support plate 1 on the other side is assembled, the anti-drop groove assemblies 2 on two sides are assembled, the anti-drop groove assemblies 2 are adjusted according to the diameter of the steel wire rope, the distance between the periphery of the rotating shaft 23 and the outermost edge of the pulley groove 41 is smaller than the diameter of the steel wire rope, and the anti-drop device of the steel wire rope of the main hook fixed pulley of the QD bridge crane is formed, the stress of the rotary shaft 23 is also reduced. When the lifting hook moves to the ground, the steel wire rope can rebound due to self deformation, the device prevents the rebound of the steel wire rope, the steel wire rope is successfully protected from disengaging from the groove again, the device prevents the steel wire rope from inclining or deviating to cause the disengaging from the groove, the abrasion between the steel wire rope and the fixed pulley block 4 caused by the disengaging from the groove is reduced, the potential safety hazard is eliminated, the safety of equipment is guaranteed, and the replacement cost caused by corresponding loss is reduced.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a QD bridging hook fixed pulley wire rope anticreep device, includes two backup pads of parallel arrangement in opposite directions, its characterized in that: and a fixed shaft and anti-slot-preventing components symmetrically arranged about the fixed shaft are arranged between the two support plates, a fixed pulley block is arranged on the fixed shaft, and the gap between the outermost edge of the fixed pulley block and the anti-slot-preventing components at opposite positions is smaller than the diameter of the steel wire rope.

2. The QD bridge crane main hook fixed pulley wire rope anti-drop device according to claim 1, wherein: the anti-drop groove assembly comprises a rotating shaft, bearings sleeved at two ends of the rotating shaft and bearing supports clamped on the bearings.

3. The QD bridge crane main hook fixed pulley wire rope anti-drop device according to claim 2, wherein: the supporting plate is provided with a square clamping groove, and two ends of the fixing shaft are provided with first square protruding blocks corresponding to the square clamping groove.

4. The QD bridge crane main hook fixed pulley wire rope anti-drop device according to claim 3, wherein: the supporting plate is provided with a countersunk through hole opposite to the other side of the square clamping groove, the countersunk through hole is located in the center of the square clamping groove, first threaded holes are formed in two ends of the fixing shaft, and a bolt sequentially penetrates through the countersunk through hole and the first threaded holes to fix the fixing shaft on the supporting plate.

5. The QD bridge crane main hook fixed pulley wire rope anti-drop device according to claim 2, wherein: the supporting plate is provided with a U-shaped groove, the bearing support is provided with a second square convex block, and the side length of the square cross section of the second square convex block is equal to the groove width of the U-shaped groove.

6. The QD bridge crane main hook fixed pulley wire rope anti-drop device according to claim 5, wherein: and a second threaded hole is formed in the second square convex block, and a bolt sequentially penetrates through the through hole of the fixing block and the second threaded hole to fix the bearing support on the supporting plate.