Anti-swing mechanism for crane hook

Abstract

The utility model relates to the technical field of anti-swing of lifting appliances, in particular to an anti-swing mechanism for a lifting hook of a crane, which can prevent ropes from being wound together, is convenient and practical, prevents the lifting hook from swinging in the lifting process, and can be quickly moved and adjusted. Comprising a pulley yoke, a lifting hook is installed at the bottom of the pulley yoke, two rotating shafts are rotatably installed on the left side and the right side in the pulley yoke, pulleys are fixedly installed on the outer walls of the rotating shafts, a guide pulley is rotatably installed on the upper portion between the two pulleys, and a guide assembly is installed at the top of the pulley yoke; adjusting assemblies are installed at the front end and the rear end of the pulley yoke, anti-swing assemblies are installed on the adjusting assemblies, and the anti-swing assemblies are located on the left side and the right side of the pulley yoke.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-sway of slings, in particular to an anti-sway mechanism for a crane hook. Background Art

[0002] Cranes are widely used in factories, mines, ports, hydropower stations, buildings, bridges and other fields. Cranes often use ropes to lift heavy objects on hooks. Since ropes are flexible components, during the lifting process, due to the inertia of the hoisted objects, the hoisted objects such as containers shake or even swing back and forth as the lifting mechanism accelerates and decelerates, which can easily cause damage to the wire rope and the objects in the hoisted objects. Prior art publication number CN211545678U proposes a crane hook anti-sway protection device, including a pulley frame and a hook. When the hook swings, the compression spring gives the hook a certain buffering force to avoid excessive shaking and increase the risk factor. However, it cannot be operated quickly during use, and can only be controlled slowly to reduce the amplitude of the shaking. When the hook shakes, the ropes are easily entangled and difficult to separate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a crane hook anti-sway mechanism which can avoid ropes from being entangled, is convenient and practical, prevents the hook from shaking during lifting, and can be quickly moved and adjusted.

[0004] The utility model discloses a crane hook anti-sway mechanism, comprising a pulley frame, a hook is installed at the bottom of the pulley frame, two rotating shafts are rotatably installed on the left and right sides of the pulley frame, pulleys are fixedly installed on the outer walls of the rotating shafts, a guide pulley is rotatably installed on the upper part between the two pulleys, a guide component is installed on the top of the pulley frame, an adjusting component is installed at the front and rear ends of the pulley frame, an anti-sway component is installed on the adjusting component, and the anti-sway component is located on the left and right sides of the pulley frame; a steel rope is passed around the pulley and the guide pulley in turn to make the pulley frame rise and fall smoothly, the steel rope is guided and combed by the guide component to avoid the ropes from being entangled, which is convenient and practical, the position of the anti-sway component is adjusted by the adjusting component, so that the anti-sway component presses against the cargo tightly to prevent the hook from shaking during lifting, and the anti-sway component can be quickly moved and adjusted.

[0005] Preferably, the guide assembly includes two support frames, two groups of guide rings and multiple steel balls. The two support frames are fixedly installed on the left and right sides of the top of the pulley frame. The support frames are equipped with guide rings, and multiple steel balls are evenly installed on the inner walls of the guide rings in a rolling manner. The cables pass through the guide rings, and the steel ropes are guided and combed by the support frames and guide rings to avoid the ropes from being entangled. This is convenient and practical. When the steel rope moves, the steel balls can reduce the friction between the steel rope and the guide rings, thereby reducing the wear of the steel rope.

[0006] Preferably, the anti-sway assembly includes two moving seats, two first vertical rods, two groups of second vertical rods, two anti-sway plates, two push plates and a limit assembly. The two moving seats are located on the left and right sides of the pulley frame, the first vertical rod is slidably installed on the middle part of the moving seat, the bottom of the first vertical rod is fixedly connected with the anti-sway plate, the front and rear ends of the moving seat are symmetrically slidably installed with the second vertical rod, the tops of the first vertical rod and the second vertical rod are fixedly connected with push plates, and the limit assembly is installed on the outer wall of the moving seat; after the cargo is hung on the hook, the push plate is pressed to push the first vertical rod and the second vertical rod to move downward, so that the anti-sway plate is pressed tightly against the top of the cargo to prevent the hook from shaking during lifting, and it can be moved and adjusted quickly.

[0007] Preferably, the limiting assembly includes two studs, two movable plates and two groups of push plates. The studs are rotatably installed in the middle of the outer wall of the movable seat, the movable plate is screwed on the outer wall of the studs, two plugging posts are symmetrically installed at the front and rear ends of the movable plate, sliding grooves are provided at positions corresponding to the plugging posts on the outer wall of the movable seat, and a plurality of limiting holes are evenly provided on the second vertical rod; after the second vertical rod moves downward to make the anti-sway plate contact with the cargo, the studs are rotated to push the movable plate to move, and the movable plate pushes the plugging posts to move in the sliding grooves and insert into the limiting holes to limit the second vertical rod to ensure stability.

[0008] The two wheels are provided with a plurality of gears, and the two gears are connected with the gears in a plurality of directions respectively.

[0009] Preferably, a limited rotation groove is provided at the bottom of the pulley frame, and a mounting column is fixedly connected to the top of the hook. Two swivels are fixedly installed on the outer wall of the mounting column. The mounting column and the swivel are rotatably installed in the limited rotation groove. A threaded groove is provided on the lower outer wall of the mounting column, and a limit nut is screwed on the lower threaded groove of the mounting column. The hook can be rotated at the bottom of the pulley frame through the mounting column and the swivel, which is convenient for adjusting the use direction and improving the convenience of use. Tightening the limit nut can limit the hook by cooperating with the threaded groove to ensure stability during use.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the steel rope is passed around the pulley and the guide pulley in sequence to make the pulley frame rise and fall smoothly, the steel rope is guided and combed by the guide assembly to avoid the ropes from being entangled, which is convenient and practical, and the position of the anti-sway assembly is adjusted by the adjustment assembly to make the anti-sway assembly press against the cargo to prevent the hook from shaking during lifting, and it can be moved and adjusted quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the axonometric structure of the utility model;

[0013] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the adjustment component of the utility model;

[0015] Figure 5 It is a front cross-sectional structural schematic diagram of the utility model;

[0016] Markings in the attached figure: 1. pulley frame; 2. hook; 3. rotating shaft; 4. pulley; 5. guide pulley; 6. support frame; 7. guide ring; 8. steel ball; 9. adjustment box; 10. rotating rod; 11. gear; 12. telescopic arm; 13. moving seat; 14. adjusting arm; 15. first vertical rod; 16. second vertical rod; 17. anti-sway plate; 18. stud; 19. moving plate; 20. plug column; 21. push plate; 22. mounting column; 23. swivel; 24. limit nut. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] like Figures 1 to 5As shown, a hook 2 is installed at the bottom of the pulley frame 1, and a limited rotation groove is provided at the bottom of the pulley frame 1. The top of the hook 2 is fixedly connected to a mounting column 22, and two swivels 23 are fixedly installed on the outer wall of the mounting column 22. The mounting column 22 and the swivel 23 are rotatably installed in the limited rotation groove. A threaded groove is provided on the lower outer wall of the mounting column 22, and a limiting nut 24 is screwed on the lower threaded groove of the mounting column 22. Two rotating shafts 3 are rotatably installed on the left and right sides of the interior of the pulley frame 1, and a pulley 4 is fixedly installed on the outer wall of the rotating shaft 3. A guide pulley 5 is rotatably installed on the upper part between the pulleys 4, two support frames 6 are fixedly installed on the left and right sides of the top of the pulley frame 1, and a guide ring 7 is installed on the support frame 6. A plurality of steel balls 8 are evenly rolled and installed on the inner wall of the guide ring 7. Two moving seats 13 are located on the left and right sides of the pulley frame 1, and a first vertical rod 15 is slidably installed in the middle of the moving seat 13, and an anti-sway plate 17 is fixedly connected to the bottom of the first vertical rod 15. A second vertical rod 16 is symmetrically slidably installed at the front and rear ends of the moving seat 13, and the first vertical rod 15 and the second vertical rod 16 are symmetrically slidably installed. A push plate 21 is fixedly connected to the top, the stud 18 is rotatably mounted on the middle of the outer wall of the moving seat 13, the moving plate 19 is screwed on the outer wall of the stud 18, two plug posts 20 are symmetrically installed at the front and rear ends of the moving plate 19, a sliding groove is opened at a position corresponding to the plug post 20 on the outer wall of the moving seat 13, a plurality of limit holes are evenly opened on the second vertical rod 16, two adjustment boxes 9 are respectively fixedly mounted on the front and rear ends of the pulley frame 1, a rotation hole is opened at the middle of the pulley frame 1 at a position corresponding to the center of the adjustment box 9, and the rotating rod 10 is rotatably mounted In the rotating hole, gears 11 are fixedly installed at the front and rear ends of the rotating rod 10, and the gear 11 is located inside the adjusting box 9. The front end of the rotating rod 10 passes through the adjusting box 9 and is provided with a knob. Two telescopic arms 12 are slidably installed at the left and right ends of the adjusting box 9. The ends of the two telescopic arms 12 that are close to each other are provided with spur racks and mesh with the gear 11. The ends of the telescopic arms 12 that are away from each other are fixedly connected to the moving seat 13. Adjustment arms 14 are slidably installed at the left and right ends of the adjusting box 9, and the ends of the two adjustment arms 14 that are away from each other are fixedly connected to the moving seat 13.

[0019] The steel rope is passed around the pulley 4 and the guide pulley 5 in sequence to make the pulley frame 1 rise and fall smoothly. The cable passes through the guide rings 7, and the steel rope is guided and combed by the support frame 6 and the guide ring 7 to avoid the ropes being entangled. It is convenient and practical. When the steel rope moves, the friction between the steel ball 8 and the guide ring 7 can be reduced, thereby reducing the wear of the steel rope. The hook 2 can be rotated at the bottom of the pulley frame 1 through the installation column 22 and the swivel 23, which is convenient for adjusting the use direction and improving the convenience of use. Tightening the limit nut 24 can limit the hook 2 by cooperating with the threaded groove to ensure stability during use. The rotating rod 10 is driven to rotate by the knob, and the rotating rod 10 drives the telescopic arm 12 to rotate through the gear 11, so that the telescopic arms 12 on the left and right sides are away from each other, with The left and right moving seats 13 move away from each other. When the moving seat 13 moves, it drives the adjusting arm 14 to slide out in the adjusting box 9, so that the distance between the two anti-sway plates 17 can be adjusted to increase the supporting area, which is convenient for use for goods of different sizes. After the goods are hung on the hook 2, the pushing plate 21 is pressed to push the first vertical rod 15 and the second vertical rod 16 to move downward, so that the anti-sway plate 17 is pressed against the top of the goods to prevent the hook from shaking during the lifting process, and it can be moved and adjusted quickly. After the second vertical rod 16 moves downward to make the anti-sway plate 17 contact with the goods, the stud 18 is rotated to push the moving plate 19 to move. The moving plate 19 pushes the plug 20 to move in the sliding groove and insert it into the limiting hole to limit the second vertical rod 16 to ensure stability.

[0020] like Figures 1 to 5 As shown, the utility model is a crane hook anti-sway mechanism, when working, the steel rope is passed around the pulley 4 and the guide pulley 5 in sequence, so that the pulley frame 1 is lifted and lowered smoothly, the cable passes through the guide ring 7, and the steel rope is guided and combed by the support frame 6 and the guide ring 7 to avoid the ropes being entangled together, the hook 2 can be rotated at the bottom of the pulley frame 1 through the installation column 22 and the swivel 23, which is convenient for adjusting the use direction, and the limit nut 24 can be tightened to limit the hook 2 by cooperating with the thread groove, and the rotating rod 10 is driven to rotate by the knob, and the rotating rod 10 drives the telescopic arm 12 to rotate through the gear 11, so that the telescopic arms 1 on the left and right sides can be adjusted. 2 moves away from each other, driving the left and right moving seats 13 to move away from each other. When the moving seat 13 moves, it drives the adjusting arm 14 to slide out in the adjusting box 9 to adjust the distance between the two anti-sway plates 17. After the cargo is hung on the hook 2, the push plate 21 is pressed to push the first vertical rod 15 and the second vertical rod 16 to move downward, so that the anti-sway plate 17 is pressed against the top of the cargo to prevent the hook from shaking during the lifting process. After the second vertical rod 16 moves downward to make the anti-sway plate 17 contact with the cargo, the stud 18 is rotated to push the moving plate 19 to move. The moving plate 19 pushes the plug 20 to move in the sliding groove and inserts it into the limiting hole to limit the second vertical rod 16.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A crane hook anti-sway mechanism, characterized in that: The invention comprises a pulley frame (1), wherein a hook (2) is installed at the bottom of the pulley frame (1), two rotating shafts (3) are rotatably installed on the left and right sides of the pulley frame (1), a pulley (4) is fixedly installed on the outer wall of the rotating shaft (3), a guide pulley (5) is rotatably installed on the upper part between the two pulleys (4), a guide component is installed on the top of the pulley frame (1), an adjustment component is installed at the front and rear ends of the pulley frame (1), an anti-sway component is installed on the adjustment component, and the anti-sway component is located on the left and right sides of the pulley frame (1).

2. A crane hook anti-sway mechanism as claimed in claim 1, characterized in that: The guide assembly comprises two support frames (6), two groups of guide rings (7) and a plurality of steel balls (8). The two support frames (6) are fixedly mounted on the left and right sides of the top of the pulley frame (1). The support frames (6) are equipped with guide rings (7). The inner wall of the guide rings (7) is evenly and rollingly equipped with a plurality of steel balls (8).

3. The crane hook anti-sway mechanism according to claim 1, characterized in that: The anti-sway component comprises two moving seats (13), two first vertical rods (15), two groups of second vertical rods (16), two anti-sway plates (17), two push plates (21) and a limit assembly. The two moving seats (13) are located on the left and right sides of the pulley frame (1). The middle part of the moving seat (13) is slidably mounted with the first vertical rod (15), the bottom of the first vertical rod (15) is fixedly connected with the anti-sway plate (17), the front and rear ends of the moving seat (13) are symmetrically slidably mounted with the second vertical rod (16), the top ends of the first vertical rod (15) and the second vertical rod (16) are fixedly connected with the push plates (21), and the limit assembly is mounted on the outer wall of the moving seat (13).

4. A crane hook anti-sway mechanism as claimed in claim 3, characterized in that: The limiting assembly comprises two studs (18), two movable plates (19) and two sets of push plates (21), the studs (18) are rotatably mounted on the middle part of the outer wall of the movable seat (13), the movable plate (19) is screwed on the outer wall of the studs (18), two plugging posts (20) are symmetrically mounted on the front and rear ends of the movable plate (19), a sliding groove is provided on the outer wall of the movable seat (13) at a position corresponding to the plugging posts (20), and a plurality of limiting holes are evenly provided on the second vertical rod (16).

5. The crane hook anti-sway mechanism according to claim 3, characterized in that: The adjustment assembly comprises two adjustment boxes (9), a rotating rod (10), a gear (11), two sets of telescopic arms (12) and two sets of adjustment arms (14). The two adjustment boxes (9) are respectively fixedly mounted at the front and rear ends of the pulley frame (1). A rotating hole is provided in the middle of the pulley frame (1) at a position corresponding to the center of the adjustment box (9). The rotating rod (10) is rotatably mounted in the rotating hole. Gears (11) are fixedly mounted at the front and rear ends of the rotating rod (10). The gears (11) are located inside the adjustment box (9). The front end of the rod (10) passes through the adjustment box (9) and is provided with a knob. Two telescopic arms (12) are slidably mounted on the left and right ends of the adjustment box (9) in opposite directions. The ends of the two telescopic arms (12) that are close to each other are provided with spur racks that mesh with the gear (11). The ends of the telescopic arms (12) that are away from each other are fixedly connected to the moving seat (13). Adjustment arms (14) are slidably mounted on the left and right ends of the adjustment box (9). The ends of the two adjustment arms (14) that are away from each other are fixedly connected to the moving seat (13).

6. The crane hook anti-sway mechanism according to claim 1, characterized in that: A limited rotation groove is provided at the bottom of the pulley frame (1), and a mounting column (22) is fixedly connected to the top of the hook (2). Two swivels (23) are fixedly installed on the outer wall of the mounting column (22). The mounting column (22) and the swivel (23) are rotatably installed in the limited rotation groove. A threaded groove is provided on the lower outer wall of the mounting column (22), and a limit nut (24) is screwed on the lower threaded groove of the mounting column (22).

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