Horizontal stabilizing structure for lifting hook of traveling crane

Abstract

The utility model relates to the field of lifting equipment, in particular to a horizontal stabilizing structure for a lifting hook of a traveling crane, which comprises a pulley, a lifting hook beam, a lifting hook body, a lifting appliance and two fixing plates, the lifting hook beam is connected between the two fixing plates, the pulley is rotatably connected with the fixing plates above the lifting hook beam, the lifting hook body comprises a lifting part and a rotating part, and the rotating part is rotatably connected with the lifting hook beam. The lifting appliance comprises a lifting ring and a lifting rod, the lifting ring is located above the lifting rod and fixedly connected with the lifting rod, the lifting part penetrates through the lifting ring, a limiting plate is fixedly arranged on the side, away from the lifting hook beam, of the fixing plate, a limiting rod is slidably connected in the limiting plate in the vertical direction, a driving device for driving the limiting rod to slide is arranged on the lifting appliance, and a through hole for the limiting rod to slide is formed in the lifting rod. The lifting device has the effect of improving the safety of lifting operation.

Description

Technical Field

[0001] The present application relates to the field of lifting equipment, and in particular to a horizontally stable structure of a crane hook. Background Art

[0002] A traveling crane, also known as a crane, is an indispensable and important equipment in industrial production. It is mainly used for lifting, transporting and loading and unloading materials. It can easily move heavy objects from one place to another, greatly improving work efficiency. As a key component of a traveling crane, the hook plays an important role in connecting the heavy object and the traveling crane, ensuring that the heavy object can be lifted and moved stably and safely.

[0003] At present, the crane consists of a hook, a pulley and a wire rope. There are fixed plates at both ends of the pulley, and a beam is connected between the two fixed plates. The beam is under the pulley and is rotatably connected to the hook. The hook can rotate, allowing the operator to adjust the direction of the load when lifting and moving the goods to adapt to different spaces. The wire rope is wound on the drum of the crane.

[0004] Regarding the above-mentioned related technologies, when the overhead crane is lifting workpieces, since some workpieces are long, the length direction of the workpiece needs to be the same as the moving direction of the overhead crane during the movement process to reduce the space occupied by the workpiece during the movement. The hook is rotatably connected to the overhead crane, which may cause the hook to rotate during the movement of the workpiece, causing the workpiece to collide with surrounding facilities, or even injure the staff, which makes the safety hazard of the lifting operation, which already has a certain risk factor, even greater. Utility Model Content

[0005] In order to improve the safety of overhead crane operation, the present application provides a horizontal stabilization structure of an overhead crane hook.

[0006] The present application provides a horizontal stabilization structure of a crane hook, which adopts the following technical solution:

[0007] A horizontal stable structure of a crane hook comprises a pulley, a hook beam, a hook body, a sling and two fixed plates, wherein the hook beam is connected between the two fixed plates, the pulley is rotatably connected to the fixed plate above the hook beam, the hook body comprises a lifting part and a rotating part, the rotating part is rotatably connected to the hook beam, the sling comprises a lifting ring and a suspension rod, the lifting ring is located above the suspension rod and fixedly connected to the suspension rod, the lifting part passes through the lifting ring, a limit plate is fixedly provided on the side of the fixed plate away from the hook beam, a limit rod is slidably connected to the limit plate along the vertical direction, a driving device for driving the limit rod to slide is provided on the sling, and a through hole for the limit rod to slide is provided on the suspension rod.

[0008] By adopting the above technical scheme, when the crane is lifting the workpiece, the hoist is fixed to the hook body, and the hook body drives the hoist to rise and fall synchronously, and the direction of the hoist is adjusted so that the length direction of the hoist is the same as the moving direction of the crane. Then, the driving device is used to drive the limit rod to be inserted into the limit plate, so that the hoist and the fixed plate can rotate synchronously in the horizontal direction, thereby reducing the risk of the workpiece colliding with the surrounding facilities or even injuring the staff due to the rotation of the hook driven by the workpiece lifted by the hoist during the movement of the crane, thereby improving the safety of the crane operation.

[0009] Optionally, the driving device includes a first motor, a fixed frame, a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, the end of the limiting rod close to the suspension rod is coaxially threadedly connected to the first bevel gear, the first motor is fixedly connected to the fixed frame, the rotating shaft of the first motor passes through the fixed frame and is coaxially fixedly connected to the second bevel gear, the first bevel gear is rotatably connected to the fixed frame, a protrusion is provided on the inner wall of the through hole, and a groove corresponding to the protrusion is opened on the limiting rod.

[0010] By adopting the above technical solution, the first motor drives the second bevel gear to rotate, and the second bevel gear drives the first bevel gear meshing with it to rotate. The protrusion provided on the inner wall of the through hole is stuck in the groove of the limit rod. At the same time, the limit rod is threadedly connected to the first bevel gear. Therefore, the rotation of the first bevel gear can drive the limit rod to move along the axial direction of the through hole. When one end of the limit rod is inserted in the limit plate and the other end is inserted in the through hole, the stability of the limit rod can be improved and the resistance encountered by the sling when it rotates can be increased.

[0011] Optionally, the suspension rod is slidably connected to two sliding components for fixing the workpiece along its length direction, and the two sliding components are symmetrically arranged with the suspension ring as the center.

[0012] By adopting the above technical solution, sliding components are symmetrically arranged at both ends of the suspension rod, which can ensure that the force on the hook body in the horizontal direction is balanced, thereby improving the stability of the lifting. The sliding components slide on the suspension rod to adapt to workpieces of different lengths.

[0013] Optionally, the sliding assembly includes a sliding frame, a rotating disk, a lifting rope and a second motor. The sliding frame is provided with a support plate, the second motor is fixedly connected to the support plate, the rotating shaft of the second motor passes through the support plate and is coaxially fixedly connected to the rotating disk, one end of the lifting rope is wrapped around the rotating disk, and the other end of the lifting rope is connected to one side of the sliding frame after passing around the lower end surface of the sliding frame.

[0014] By adopting the above technical solution, when the second motor drives the rotating disk to rotate, the winding amount of the lifting rope on the rotating disk will change, thereby fastening the workpiece and the sling together, reducing the shaking of the workpiece due to the movement of the vehicle, and improving safety.

[0015] Optionally, a shackle is provided at one end of the sling rope fixed to the sliding frame, a fixing ring is provided on the side wall of the sliding frame, and the shackle is detachably connected to the fixing ring.

[0016] By adopting the above technical solution, the detachable connection between the shackle and the fixing ring facilitates the removal of the workpiece from the sling, thereby improving production efficiency.

[0017] Optionally, a buffer pad is provided on the lower end surface of the sliding frame.

[0018] By adopting the above technical solution, the provision of the buffer pad can reduce the friction between the workpiece and the sliding frame, and protect the surface of the workpiece.

[0019] Optionally, a gear is provided on the side wall of the hanger, and the gear is meshed with two parallel racks. One end of the rack is fixedly connected to the sliding frame, and the sliding frame is located between the two racks in the vertical direction. A third motor is provided on the side of the hanger away from the gear, and the rotating shaft of the third motor passes through the hanger and is coaxially fixedly connected to the gear.

[0020] By adopting the above technical solution, the third motor drives the gear to rotate, which will drive the two racks meshing with the gear to move along the boom, and then drive the two symmetrical sliding frames to slide synchronously on the boom, thereby reducing the error caused by adjusting the position of the sliding frame on the boom alone, improving the balance of the sling, and increasing the safety of the lifting operation.

[0021] Optionally, two connecting plates are fixedly provided between the two fixing plates, the hook beam is located between the two connecting plates, and a limiting plate is also fixedly provided on a side of the connecting plate away from the hook beam.

[0022] By adopting the above technical solution, a limit plate is set in a direction perpendicular to the fixed plate, so that when the length direction of the sling is perpendicular to the moving direction of the crane, the rotation of the hook body can be limited, thereby increasing the adaptability to different working conditions.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the crane is hoisting the workpiece, fix the hoist to the hook body, and the hook body drives the hoist to rise and fall synchronously. Adjust the direction of the hoist so that the length direction of the hoist is the same as the moving direction of the crane. Then use the drive device to drive the limit rod to insert into the limit plate, so that the hoist and the fixed plate rotate synchronously in the horizontal direction. This reduces the risk of collision between the workpiece and the surrounding facilities caused by the rotation of the hook during the movement of the crane, and even the risk of injuring the staff, thereby improving the safety of the crane operation.

[0025] 2. The first motor drives the second bevel gear to rotate, and the second bevel gear drives the first bevel gear meshing with it to rotate. The protrusion provided on the inner wall of the through hole is stuck in the groove of the limit rod. At the same time, the limit rod is threadedly connected with the first bevel gear. Therefore, the rotation of the first bevel gear can drive the limit rod to move along the axial direction of the through hole. When one end of the limit rod is inserted in the limit plate and the other end is inserted in the through hole, the stability of the limit rod can be improved, and the resistance encountered by the sling when it is to rotate can be increased;

[0026] 3. The sliding components are symmetrically arranged at both ends of the boom to ensure balanced force on the hook body in the horizontal direction, thereby improving the stability of the lifting. The sliding components can slide on the boom to adapt to workpieces of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the horizontal stability structure of a overhead crane hook.

[0028] Figure 2 It is a cross-sectional schematic diagram of the horizontal stability structure of a crane hook.

[0029] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0030] Figure 4 It is a structural schematic diagram of the sliding component.

[0031] Explanation of the accompanying drawings: 1. hook body; 11. lifting part; 12. rotating part; 13. pulley; 14. hook beam; 15. fixed plate; 151. connecting plate; 152. limiting plate; 2. lifting device; 21. lifting ring; 22. lifting rod; 221. through hole; 222. protrusion; 223. gear; 224. third motor; 23. driving device; 231. first motor; 232. fixing frame; 233. first bevel gear; 234. second bevel gear; 25. limiting rod; 251. groove; 3. sliding assembly; 31. sliding frame; 311. fixing ring; 312. buffer pad; 313. rack; 314. support plate; 32. rotating disk; 33. lifting rope; 331. shackle; 34. second motor; 4. workpiece. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] The embodiment of the present application discloses a horizontal stabilization structure of a crane hook.

[0034] Reference Figure 1 and Figure 2A horizontal stable structure of a crane hook includes a pulley 13, a hook beam 14, a hook body 1, a sling 2 and two fixed plates 15. The hook beam 14 is connected between the two fixed plates 15, and the pulley 13 is rotatably connected to the fixed plates 15 above the hook beam 14. The hook body 1 includes a lifting part 11 and a rotating part 12, and the rotating part 12 is rotatably connected to the hook beam 14 to achieve free rotation of the hook body 1. The sling 2 includes a lifting ring 21 and a suspension rod 22, and the lifting ring 21 is fixedly connected to the suspension rod 22 above the suspension rod 22, and the lifting part 11 passes through the lifting ring 21 and abuts against the lifting ring 21 to achieve the connection between the hook body 1 and the sling 2. When the crane needs to lift the workpiece 4, the hook body 1 will drive the sling 2 to rise and fall synchronously.

[0035] Reference Figure 2 and Figure 3 A limit plate 152 is fixedly provided on one side of the fixed plate 15 away from the hook beam 14, and a limit rod 25 is slidably connected to the limit plate 152 in the vertical direction. A driving device 23 for driving the limit rod 25 to slide is provided on the sling 2. The driving device 23 includes a first motor 231, a fixed frame 232, a first bevel gear 233, and a second bevel gear 234. After adjusting the direction of the sling 2 so that its length direction is consistent with the moving direction of the crane, the first motor 231 is started, and the first motor 231 is fixedly connected to the fixed frame 232. The rotating shaft of the first motor 231 passes through the fixed frame 232 to drive the second bevel gear 234 coaxial with the first motor 231 to rotate. This rotational force is transmitted to the first bevel gear 233 meshing with the second bevel gear 234, so that the first bevel gear 233 rotates on the fixed frame 232 along its own axis. The protrusion 222 provided on the inner wall of the through hole 221 is stuck in the groove 251 provided on the limit rod 25 to prevent the limit rod 25 from rotating during the sliding process. At the same time, the end of the limit rod 25 close to the suspension rod 22 is threadedly connected to the first bevel gear 233, so that the rotation of the first bevel gear 233 can drive the limit rod 25 to move along the axial direction of the through hole 221 until one end of the limit rod 25 is inserted into the limit plate 152. In this way, the sling 2 will achieve synchronous rotation with the fixed plate 15 in the horizontal direction. This process greatly reduces the risk of the workpiece 4 hoisted by the sling 2 driving the hook to rotate during the driving process, causing the workpiece 4 to collide with the surrounding facilities, or even injure the staff, and significantly improves the safety of the overhead crane operation.

[0036] Reference Figure 1 and Figure 2 Two connecting plates 151 are fixed between the two fixing plates 15, the hook beam 14 is located between the two connecting plates 151, and a limiting plate 152 is also fixed on the side of the connecting plate 151 away from the hook beam 14. The limiting plate 152 is arranged in a direction perpendicular to the fixing plate 15, so that when the length direction of the sling 2 is perpendicular to the moving direction of the crane, the rotation of the hook body 1 can be limited, thereby increasing the adaptability to different working conditions.

[0037] Reference Figure 1 Two sliding assemblies 3 for fixing the workpiece 4 are slidably connected to the suspension rod 22 along its length direction, and the two sliding assemblies 3 are symmetrically arranged with the suspension ring 21 as the center. This symmetrical structure can ensure that the force of the hook body 1 in the horizontal direction is balanced, thereby improving the stability of the lifting.

[0038] Reference Figure 1 The sliding assembly 3 includes a sliding frame 31, which moves the hanger 2 to the top of the workpiece 4 and adjusts the position of the sliding frame 31 according to the length of the workpiece 4. The third motor 224 provided on one side of the suspension rod 22 is started to drive the gear 223 provided on the side of the suspension rod 22 away from the gear 223 and coaxially fixedly connected to the rotating shaft of the third motor 224 to rotate. Since the gear 223 is engaged with two mutually parallel racks 313, the rotation of the gear 223 will drive the two racks 313 to move synchronously along the suspension rod 22, and then drive the two symmetrically arranged sliding frames 31 to slide synchronously on the suspension rod 22. This design not only reduces the error that may be generated when adjusting the position of each sliding frame 31 on the suspension rod 22 separately, but also further improves the balance of the hanger 2, thereby increasing the safety of the lifting operation. In the vertical direction, the sliding frame 31 is located between the two racks 313. When the two sliding frames 31 slide relative to each other, the rack 313 is prevented from hitting the sliding frame 31 that is not fixed to it.

[0039] Reference Figure 1 and Figure 4 The sliding frame 31 is provided with a support plate 314, the support plate 314 is fixedly connected to the second motor 34, and the rotating shaft of the second motor 34 passes through the support plate 314 and is coaxially fixedly connected to the rotating disk 32. A suspension rope 33 is wound around the rotating disk 32, and one end of the suspension rope 33 away from the rotating disk 32 passes through the bottom of the workpiece 4 and is connected to one side of the sliding frame 31. When the second motor 34 drives the rotating disk 32 to rotate, the winding amount of the suspension rope 33 on the rotating disk 32 will change, thereby fastening the workpiece 4 and the sling 2 together, effectively reducing the shaking of the workpiece 4 caused by the movement of the vehicle, and further improving safety.

[0040] Reference Figure 1 and Figure 4 Furthermore, a shackle 331 is provided at one end of the lifting rope 33 fixed to the sliding frame 31, and a fixing ring 311 is provided on the side wall of the sliding frame 31, and the shackle 331 and the fixing ring 311 are detachably connected. This design enables the workpiece 4 to be easily removed from the lifting device 2, thereby improving production efficiency. In order to better protect the workpiece 4, a buffer pad 312 is also provided on the lower end surface of the sliding frame 31, which can reduce the friction between the workpiece 4 and the sliding frame 31.

[0041] The implementation principle of the horizontal stability structure of a crane hook in an embodiment of the present application is as follows: when the crane is lifting a workpiece 4, the sling 2 is fixed to the hook body 1, and the hook body 1 drives the sling 2 to rise and fall synchronously, and the direction of the sling 2 is adjusted so that the length direction of the sling 2 is the same as the moving direction of the crane. Then, the driving device 23 is used to drive the limit rod 25 to be inserted into the limit plate 152, so that the sling 2 and the fixed plate 15 rotate synchronously in the horizontal direction, thereby reducing the risk of the workpiece 4 colliding with the surrounding facilities or even injuring the staff due to the rotation of the hook caused by the workpiece 4 lifted by the sling 2 during the movement of the crane, thereby improving the safety of the crane operation.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A horizontal stabilizing structure for a crane hook, comprising a pulley (13), a hook beam (14), a hook body (1), a sling (2) and two fixing plates (15), characterized in that: The hook beam (14) is connected between two fixed plates (15), the pulley (13) is rotatably connected to the fixed plate (15) above the hook beam (14), the hook body (1) comprises a lifting part (11) and a rotating part (12), the rotating part (12) is rotatably connected to the hook beam (14), the sling (2) comprises a lifting ring (21) and a suspension rod (22), the lifting ring (21) is located above the suspension rod (22) and is fixedly connected to the suspension rod (22), the lifting part (11) passes through the lifting ring (21), a limiting plate (152) is fixedly provided on one side of the fixed plate (15) away from the hook beam (14), a limiting rod (25) is slidably connected to the limiting plate (152) along a vertical direction, a driving device (23) for driving the limiting rod (25) to slide is provided on the sling (2), and a through hole (221) for the limiting rod (25) to slide is provided on the suspension rod (22).

2. The horizontal stability structure of a crane hook according to claim 1 is characterized in that: The driving device (23) comprises a first motor (231), a fixing frame (232), a first bevel gear (233) and a second bevel gear (234); the first bevel gear (233) and the second bevel gear (234) are meshed with each other; one end of the limiting rod (25) close to the suspension rod (22) is coaxially threadedly connected to the first bevel gear (233); the first motor (231) is fixedly connected to the fixing frame (232); a rotating shaft of the first motor (231) passes through the fixing frame (232) and is coaxially fixedly connected to the second bevel gear (234); the first bevel gear (233) is rotatably connected to the fixing frame (232); a protrusion (222) is provided on the inner wall of the through hole (221); and a groove (251) corresponding to the protrusion (222) is provided on the limiting rod (25).

3. The horizontal stability structure of a crane hook according to claim 1 is characterized in that: The suspension rod (22) is slidably connected to two sliding assemblies (3) for fixing the workpiece (4) along its length direction, and the two sliding assemblies (3) are symmetrically arranged with the suspension ring (21) as the center.

4. The horizontal stabilization structure of a crane hook according to claim 3 is characterized by: The sliding assembly (3) comprises a sliding frame (31), a rotating disk (32), a suspension rope (33) and a second motor (34); a support plate (314) is provided on the sliding frame (31); the second motor (34) is fixedly connected to the support plate (314); a rotating shaft of the second motor (34) passes through the support plate (314) and is coaxially fixedly connected to the rotating disk (32); one end of the suspension rope (33) is wound around the rotating disk (32); the other end of the suspension rope (33) is connected to one side of the sliding frame (31) after passing around the lower end surface of the sliding frame (31).

5. The horizontal stabilization structure of a crane hook according to claim 4 is characterized by: One end of the suspension rope (33) fixed to the sliding frame (31) is provided with a shackle (331), and a fixing ring (311) is provided on the side wall of the sliding frame (31). The shackle (331) and the fixing ring (311) are detachably connected.

6. The horizontal stabilization structure of a crane hook according to claim 4 is characterized by: A buffer pad (312) is provided on the lower end surface of the sliding frame (31).

7. The horizontal stabilization structure of a crane hook according to claim 4 is characterized by: A gear (223) is provided on the side wall of the suspension rod (22), and the gear (223) is meshed with two parallel racks (313), one end of the rack (313) is fixedly connected to the sliding frame (31), and the sliding frame (311) is located between the two racks (313) in the vertical direction. A third motor (224) is provided on the side of the suspension rod (22) away from the gear (223), and the rotation shaft of the third motor (224) passes through the suspension rod (22) and is coaxially fixedly connected to the gear (223).

8. The horizontal stabilization structure of a crane hook according to claim 1 is characterized by: Two connecting plates (151) are fixedly arranged between the two fixing plates (15), the hook beam (14) is located between the two connecting plates (151), and a limiting plate (152) is also fixedly arranged on a side of the connecting plate (151) away from the hook beam (14).

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