Crane end beam driving mechanism

Abstract

The utility model relates to the technical field of cranes, and particularly discloses a crane end beam driving mechanism which comprises an end beam, a driving wheel, a driven wheel and a gear motor, the driving wheel and the driven wheel are rotatably arranged at the two ends of the end beam respectively, the gear motor is arranged on one side of the end beam, and the output end of the gear motor is in transmission fit with the driving wheel. A connecting hole plate is arranged on a shell of the gear motor, and a counter-torque mechanism matched with the connecting hole plate is arranged on the end beam. The vertical plate is arranged on the end beam, the gear motor and the end beam are connected and fastened through the fastening piece, torque during operation is absorbed through the elastic piece, impact on the end beam is reduced, the vertical plate is welded to the end beam, and the reinforcing rib plate and the reinforcing piece are arranged, so that the connecting strength of the vertical plate and the end beam is improved; during working, the end beam is good in stability, high in use safety, simple in overall structure, safe, reliable, low in cost and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a crane end beam driving mechanism. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. In the field of general cranes, the crane end beam is a key component for carrying and horizontally transporting objects and is one of the main components of the crane. The end beam drive mechanism of a single-beam crane is the driving source for realizing horizontal transport. It consists of a reduction motor and a traveling wheel set. The reduction motor is fixedly connected to the end beam and will generate a large torque during use. The existence of the torque will cause impact damage to the end beam, reduce the service life of the end beam, pose a safety hazard, and increase the cost of use.

[0003] The Chinese utility model patent (publication number: CN201670663U) discloses a protective device for the end beam drive mechanism of a crane, including an end beam drive mechanism, a hoop, and a flexible connector. The end beam drive mechanism is fixedly connected to the end beam, and the end beam drive mechanism includes a drive motor. The hoop is arranged at one end of the drive motor to wrap the drive motor. The two ends of the hoop are combined and fixedly connected to one end of the flexible connector through a fastener. The other end of the flexible connector is fixed on the top of the end beam. When the end beam drive mechanism falls due to torque, this technical solution suspends the end beam drive mechanism through a chain to eliminate the occurrence of safety accidents, but fails to eliminate the impact of the torque on the end beam. During use, there is still damage to the end beam caused by the torque, resulting in an increase in the cost of use.

[0004] Therefore, it is necessary to propose a crane end beam driving mechanism to overcome the defects of the prior art. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art and provides a crane end beam driving mechanism.

[0006] The technical solution of the utility model is:

[0007] A crane end beam driving mechanism comprises an end beam, a driving wheel, a driven wheel and a reduction motor, wherein the driving wheel and the driven wheel are rotatably arranged at the two ends of the end beam respectively, the reduction motor is arranged on one side of the end beam, the output end of the reduction motor is matched with the driving wheel transmission, a connecting hole plate is arranged on the housing of the reduction motor, and a counter-torque mechanism matched with the connecting hole plate is arranged on the end beam.

[0008] Preferably, the anti-torque mechanism includes two vertical plates, which are arranged on the end beam in parallel and at intervals, the connecting hole plate is connected between the two vertical plates by fasteners, the vertical plates are provided with fixing holes for installing the fasteners, and a reinforcement piece is arranged between the two vertical plates.

[0009] Preferably, the fastener includes a screw rod and a first nut, the screw rod passes through the vertical plate and the connecting hole plate and is connected with the first nut in cooperation, and elastic members are sleeved on the screw rod and on both sides of the connecting hole plate.

[0010] Preferably, the elastic member is a spring, which is sleeved on the screw rod, one end of the spring abuts against the vertical plate, and the other end of the spring abuts against the connecting hole plate.

[0011] Preferably, the elastic member is an elastic sleeve, which is mounted on the screw rod, and two ends of the elastic sleeve are respectively in contact with the vertical plate and the connecting hole plate.

[0012] Preferably, a reinforcing rib plate is provided between the outer side of the vertical plate and the end beam.

[0013] Preferably, the reinforcement member includes a support plate, and opposite side walls of the two vertical plates are provided with slots, the support plate is inserted into the slots, and the vertical plates are threadedly connected with set screws.

[0014] Preferably, the reinforcement member comprises a stud, both ends of the stud are provided with threads of opposite rotation directions, both ends of the stud are penetrated and arranged on the vertical plate, and both ends of the stud are threadedly connected with a second nut.

[0015] Preferably, a gasket is sleeved on the screw rod, and the gasket is arranged between the nut of the screw rod and the vertical plate, and between the first nut and the vertical plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model arranges a vertical plate on the end beam, realizes the connection and fastening between the reduction motor and the end beam by fasteners, absorbs the torque during operation by elastic parts, reduces the impact on the end beam, the vertical plate is welded to the end beam, and increases the connection strength between the vertical plate and the end beam by arranging reinforcing rib plates and reinforcing parts. The end beam has good stability during operation, high safety in use, simple overall structure, safe and reliable, low cost, and easy installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model Figure 2 ;

[0020] Figure 3 It is a partial enlarged structural schematic diagram of A of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of Embodiment 2 of the present utility model;

[0022] Figure 5 It is a schematic diagram of the partially enlarged structure of point B of the utility model.

[0023] Among them, 1. end beam; 2. driving wheel; 3. driven wheel; 4. reduction motor; 5. vertical plate; 51. fixing hole; 52. slot; 6. screw; 7. first nut; 8. spring; 9. elastic sleeve; 10. reinforcing rib plate; 11. support plate; 12. set screw; 13. stud; 14. second nut; 15. gasket. DETAILED DESCRIPTION

[0024] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown, a crane end beam driving mechanism includes an end beam 1, a driving wheel 2, a driven wheel 3 and a reduction motor 4. The driving wheel 2, the driven wheel 3 and the reduction motor 4 are all installed on the end beam 1. The driving wheel 2 and the driven wheel 3 are respectively installed at both ends of the end beam 1 and can rotate relative to the end beam 1 to realize the movement of the end beam 1. The reduction motor 4 is installed on a side wall of the end beam 1. The output end of the reduction motor 4 is matched with the driving wheel 2 for transmission. Specifically, the reduction motor 4 is connected to the driving wheel 2 in a shaft-mounted manner to drive the driving wheel 2 to rotate. A connecting hole plate is integrally processed on the housing of the reduction motor 4. A counter-torque mechanism adapted to the connecting hole plate is installed on the end beam 1 to offset the torque generated by the reduction motor 4 when it is working, so as to ensure the smooth driving of the end beam 1 and the safety of use.

[0027] like Figure 3 As shown, the anti-torque mechanism includes two vertical plates 5, which are connected to the end beam 1 in parallel and at intervals. The vertical plates 5 and the end beam 1 are processed by welding. The connecting hole plate is located between the two vertical plates 5 and is connected to the vertical plates 5 by fasteners. Fixing holes 51 for installing fasteners are processed on the vertical plates 5. When the vertical plates 5 are welded, it is necessary to ensure that the fixing holes 51 on the two vertical plates 5 are coaxial. Reinforcing rib plates 10 are welded on the outer sides of the vertical plates 5. The reinforcing rib plates 10 are respectively welded to the vertical plates 5 and the end beam 1 to enhance the connection strength between the vertical plates 5 and the end beam 1. A reinforcing member is connected between the two vertical plates 5 to further enhance the connection strength between the two vertical plates 5 to avoid deformation of the vertical plates 5 or cracking of the welds due to excessive torque.

[0028] like Figure 3As shown, the fastener includes a screw rod 6 and a first nut 7. The screw rod 6 penetrates and is connected to the two vertical plates 5. Specifically, the screw rod 6 passes through the fixing holes 51 on the two vertical plates 5 and passes through the connecting hole plate between the two vertical plates 5. The screw rod 6 passes through the ends of the vertical plate 5 and the connecting hole plate and is connected with the first nut 7 to realize the connection of the reduction motor 4 to the vertical plate 5. In order to reduce the pressure exerted on the vertical plate 5 by the screw rod 6 and the first nut 7 during the fastening connection, a gasket 15 is provided on the screw rod 6. The number of the gaskets 15 is two. The two gaskets 15 are respectively located between the nut of the screw rod 6 and the vertical plate 5, and between the first nut 7 and the vertical plate 5. The gasket 15 increases the contact area with the vertical plate 5, reduces the force on the vertical plate 5, reduces the force between the screw rod 6 and the vertical plate 5, and improves the service life of the vertical plate 5, the screw rod 6 and the first nut 7. Elastic members are provided on the screw rod 6 and on both sides of the connecting hole plate.

[0029] like Figure 3 As shown, the elastic member adopts a spring 8, and two springs 8 are both mounted on the screw 6 and located between the connecting hole plate and the vertical plate 5. Specifically, one end of the spring 8 abuts against the vertical plate 5, and the other end of the spring 8 abuts against the connecting hole plate. When the reduction motor 4 generates torque, the torque generated is absorbed by the compression of the spring 8, thereby reducing the impact of the torsion on the end beam 1, avoiding damage to the end beam 1, and improving the service life and safety of the end beam 1.

[0030] like Figure 3 As shown, the reinforcement member includes a support plate 11, and grooves 52 are processed on the opposite side walls of the two vertical plates 5. The two sides of the support plate 11 are inserted and connected in the grooves 52 to support the two vertical plates 5. Set screws 12 are connected to the vertical plates 5 by threaded connection to tighten the two sides of the support plate 11 to fix the support plate 11 on the vertical plates 5 and prevent the support plate 11 from loosening due to vibration or impact.

[0031] When in use, the reduction motor 4 is connected to the driving wheel 2 in a shaft-mounted manner, and the connecting hole plate of the reduction motor 4 is connected between the two vertical plates 5 by a locking connection method of a screw rod 6 and a first nut 7. When the reduction motor 4 starts working, the torque generated during operation is absorbed by the spring 8 mounted on the screw rod 6 to reduce the impact on the end beam 1, and the connection strength between the vertical plates 5 and between the vertical plates 5 and the end beam 1 is strengthened by welding a reinforcing rib plate 10 and installing a support plate 11 between the vertical plates 5, so as to ensure the stability and reliability of the end beam 1 during driving.

[0032] Example 2

[0033] like Figure 4 and Figure 5As shown, a crane end beam driving mechanism includes an end beam 1, a driving wheel 2, a driven wheel 3 and a reduction motor 4. The driving wheel 2, the driven wheel 3 and the reduction motor 4 are all installed on the end beam 1. The driving wheel 2 and the driven wheel 3 are respectively installed at both ends of the end beam 1 and can rotate relative to the end beam 1 to realize the movement of the end beam 1. The reduction motor 4 is installed on a side wall of the end beam 1. The output end of the reduction motor 4 is matched with the driving wheel 2 for transmission. Specifically, the reduction motor 4 is connected to the driving wheel 2 in a shaft-mounted manner to drive the driving wheel 2 to rotate. A connecting hole plate is integrally processed on the housing of the reduction motor 4. A counter-torque mechanism adapted to the connecting hole plate is installed on the end beam 1 to offset the torque generated by the reduction motor 4 when it is working, so as to ensure the smooth driving of the end beam 1 and the safety of use.

[0034] like Figure 5 As shown, the anti-torque mechanism includes two vertical plates 5, which are connected to the end beam 1 in parallel and at intervals. The vertical plates 5 and the end beam 1 are processed by welding. The connecting hole plate is located between the two vertical plates 5 and is connected to the vertical plates 5 by fasteners. Fixing holes 51 for installing fasteners are processed on the vertical plates 5. When the vertical plates 5 are welded, it is necessary to ensure that the fixing holes 51 on the two vertical plates 5 are coaxial. Reinforcing rib plates 10 are welded on the outer sides of the vertical plates 5. The reinforcing rib plates 10 are respectively welded to the vertical plates 5 and the end beam 1 to enhance the connection strength between the vertical plates 5 and the end beam 1. A reinforcing member is connected between the two vertical plates 5 to further enhance the connection strength between the two vertical plates 5 to avoid deformation of the vertical plates 5 or cracking of the welds due to excessive torque.

[0035] like Figure 5 As shown, the fastener includes a screw rod 6 and a first nut 7. The screw rod 6 penetrates and is connected to the two vertical plates 5. Specifically, the screw rod 6 passes through the fixing holes 51 on the two vertical plates 5 and passes through the connecting hole plate between the two vertical plates 5. The screw rod 6 passes through the ends of the vertical plate 5 and the connecting hole plate and is connected with the first nut 7 to realize the connection of the reduction motor 4 to the vertical plate 5. In order to reduce the pressure exerted on the vertical plate 5 by the screw rod 6 and the first nut 7 during the fastening connection, a gasket 15 is provided on the screw rod 6. The number of the gaskets 15 is two. The two gaskets 15 are respectively located between the nut of the screw rod 6 and the vertical plate 5, and between the first nut 7 and the vertical plate 5. The gasket 15 increases the contact area with the vertical plate 5, reduces the force on the vertical plate 5, reduces the force between the screw rod 6 and the vertical plate 5, and improves the service life of the vertical plate 5, the screw rod 6 and the first nut 7. Elastic members are provided on the screw rod 6 and on both sides of the connecting hole plate.

[0036] like Figure 5As shown, the reinforcement member includes a stud 13, both ends of which are processed with threads, the threads at both ends of the stud 13 are rotated in opposite directions, and both ends of the stud 13 extend to both sides through the vertical plate 5, and the threads at both ends of the stud 13 are threadedly connected with second nuts 14. When in use, the second nuts 14 are screwed so that the two second nuts 14 move away from each other, and the side surfaces of the second nuts 14 abut against the vertical plate 5, thereby supporting and reinforcing the vertical plate 5.

[0037] like Figure 5 As shown, the elastic member of this embodiment adopts an elastic sleeve 9, which is mounted on the screw rod 6. The two ends of the elastic sleeve 9 are tightly abutted against the vertical plate 5 and the connecting hole plate respectively. The elastic sleeve 9 is made of soft materials such as polyurethane and rubber, is compressible, and can absorb the torque generated during work.

[0038] Example 3

[0039] The structure of this embodiment is basically the same as that of embodiment 1, except that the reinforcement of this embodiment includes a stud 13, both ends of which are processed with threads, the threads at both ends of the stud 13 are rotated in opposite directions, both ends of the stud 13 extend to both sides through the vertical plate 5, and second nuts 14 are threadedly connected to the threads at both ends of the stud 13. When in use, the second nuts 14 are screwed so that the two second nuts 14 move away from each other, and the side surfaces of the second nuts 14 abut against the vertical plate 5, thereby supporting and reinforcing the vertical plate 5.

[0040] Example 4

[0041] The structure of this embodiment is basically the same as that of Embodiment 2, except that the reinforcement of this embodiment includes a support plate 11, and grooves 52 are processed on the opposite side walls of the two vertical plates 5. The two sides of the support plate 11 are inserted and connected in the grooves 52 to support the two vertical plates 5. Set screws 12 are connected to the vertical plates 5 by threaded connection to tighten the two sides of the support plate 11 to fix the support plate 11 on the vertical plates 5 and prevent the support plate 11 from loosening due to vibration or impact.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. That is, any equivalent changes and modifications made according to the content of the patent application scope of the present invention should belong to the technical scope of the present invention.

Claims

1. A crane end beam driving mechanism, comprising an end beam (1), a driving wheel (2), a driven wheel (3) and a reduction motor (4), wherein the driving wheel (2) and the driven wheel (3) are rotatably arranged at the two ends of the end beam (1), respectively, the reduction motor (4) is arranged on one side of the end beam (1), the output end of the reduction motor (4) is in transmission cooperation with the driving wheel (2), and a connecting hole plate is arranged on the housing of the reduction motor (4), characterized in that: A counter-torque mechanism adapted to the connecting hole plate is provided on the end beam (1).

2. The crane end beam driving mechanism according to claim 1, characterized in that: The anti-torque mechanism comprises two vertical plates (5), the two vertical plates (5) are arranged on the end beam (1) in parallel and at intervals, the connecting hole plate is connected between the two vertical plates (5) by fasteners, the vertical plates (5) are provided with fixing holes (51) for installing the fasteners, and a reinforcement piece is arranged between the two vertical plates (5).

3. The crane end beam driving mechanism according to claim 2, characterized in that: The fastener comprises a screw rod (6) and a first nut (7); the screw rod (6) passes through the vertical plate (5) and the connecting hole plate to be matched with the first nut (7); elastic members are sleeved on the screw rod (6) and on both sides of the connecting hole plate.

4. The crane end beam driving mechanism according to claim 3 is characterized in that: The elastic member is a spring (8), which is sleeved on the screw rod (6), one end of the spring (8) abuts against the vertical plate (5), and the other end of the spring (8) abuts against the connecting hole plate.

5. The crane end beam driving mechanism according to claim 3, characterized in that: The elastic member is an elastic sleeve (9), which is sleeved on the screw rod (6), and the two ends of the elastic sleeve (9) are respectively in contact with the vertical plate (5) and the connecting hole plate.

6. The crane end beam driving mechanism according to claim 2, characterized in that: A reinforcing rib plate (10) is provided between the outer side of the vertical plate (5) and the end beam (1).

7. The crane end beam driving mechanism according to claim 4 or 5, characterized in that: The reinforcement member comprises a support plate (11), and opposite side walls of the two vertical plates (5) are each provided with a clamping groove (52), the support plate (11) is inserted into the clamping groove (52), and a set screw (12) is threadedly connected to the vertical plate (5).

8. The crane end beam driving mechanism according to claim 4 or 5, characterized in that: The reinforcement member comprises a stud (13), both ends of the stud (13) are provided with threads of opposite rotation directions, both ends of the stud (13) are penetrated and arranged on the vertical plate (5), and both ends of the stud (13) are threadedly connected to a second nut (14).

9. The crane end beam driving mechanism according to claim 3, characterized in that: A gasket (15) is sleeved on the screw rod (6), and the gasket (15) is arranged between the nut of the screw rod (6) and the vertical plate (5), and between the first nut (7) and the vertical plate (5).

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