Coil lifting tong protection device
By using polyurethane protective plates and positioning mechanisms on the steel coil lifting clamps, the problem of damage during steel coil lifting was solved, achieving protection of the steel coil and stability of the lifting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING SHENGHUA RONGCHUANG METALLURGICAL TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-05-29
AI Technical Summary
Existing steel coil lifting clamps are prone to damaging the ends and interior of steel coils during loading and unloading, affecting appearance quality and increasing the defect rate.
The protective plate and positioning mechanism, made of polyurethane, prevent the steel coil from swaying through guide wheels and positioning blocks, reducing the risk of damage during hoisting.
It effectively protects steel coils, reduces defect rates, and improves the safety and stability of the hoisting process.
Smart Images

Figure CN224298684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel coil hoisting technology, and in particular to a steel coil hoisting clamp protection device. Background Technology
[0002] Currently, the clamps used for steel coil hoisting often damage the steel coils during loading and unloading, especially the ends and inside of the coils, easily leaving marks caused by collisions. This damage not only affects the appearance quality of the steel coils but also increases the defect rate of steel mills. Summary of the Invention
[0003] The purpose of this utility model is to provide a steel coil hoisting clamp protection device to solve the above-mentioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A steel coil hoisting clamp protection device includes a lifting beam with two symmetrically arranged hangers at both ends. A first protective plate is provided on one side of each hanger. A hanging plate is provided on the bottom side of each hanger. Guide wheels are provided on both sides of each hanging plate. A second protective plate is provided on one side of each hanging plate. An arc-shaped third protective plate is provided on the upper surface of each hanging plate. A positioning frame is provided at the bottom of the third protective plate. A first strip groove is provided on both sides of each hanging plate. A first strip block adapted to the first strip groove is provided inside the positioning frame. A positioning mechanism to prevent the steel coil from swaying is provided on the side of the hanging plate.
[0006] Preferably, the first protective plate, the second protective plate, and the third protective plate are all made of polyurethane material.
[0007] Preferably, the first strip groove is provided with a first transmission rod and a first limiting rod inside. The first transmission rod is rotatably connected to the inner wall of the first strip groove. The outer side of the first transmission rod is threaded. The first transmission rod is threadedly connected to the first strip block. The first limiting rod is slidably connected to the first strip block.
[0008] Preferably, a first limiting seat is provided on the side of the hanging plate, a first worm gear is rotatably connected to the first limiting seat, a knob is provided at the other end of the first worm gear, a first worm wheel is provided at one end of the first transmission rod, and the first worm gear and the first worm wheel are meshed together.
[0009] Preferably, the positioning mechanism includes two positioning blocks, which are symmetrically arranged on both sides of the hanging plate. A second strip groove is provided on both sides of the hanging plate. A second transmission rod is rotatably connected in the second strip groove. Two first positioning seats are symmetrically arranged on the second transmission rod. Two second positioning seats are symmetrically arranged on the side of the positioning block. A transmission member is provided between the first positioning seats and the second positioning seats. One end of the transmission member is rotatably connected to the first positioning seat, and the other end of the transmission member is rotatably connected to the second positioning seat.
[0010] Preferably, both ends of the second transmission rod are threaded, the threads at both ends of the second transmission rod are screwed in opposite directions, the second transmission rod is threadedly connected to the first positioning seat, a limit block is provided on the side of the first positioning seat, a limit groove is provided on the inner wall of the second strip groove, and the limit block and the limit groove are slidably connected.
[0011] Preferably, a third strip-shaped groove is provided on each of the two hanging plates on opposite sides. A second limiting seat is provided at both ends of the third strip-shaped groove. A third transmission rod is rotatably connected to the second limiting seat. A second worm is provided at both ends of the third transmission rod. A second worm wheel is provided at one end of the second transmission rod. The second worm and the second worm wheel are meshed together. A first gear is provided on the third transmission rod. A third limiting seat is provided in the third strip-shaped groove. A drive motor is provided on the third limiting seat. A second gear is provided at the output end of the drive motor.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0013] Compared with existing steel coil hoisting devices, this application uses polyurethane protective plates on the inner side of the hoist and other locations that can contact the steel coil, reducing damage to the steel coil; positioning blocks are set on both sides of the hoisting plate, and the positioning mechanism can control the extension and retraction of the positioning blocks to abut against the inner wall of the steel coil, thereby fixing the steel coil and preventing it from shaking during hoisting. This not only reduces hoisting risks but also reduces the defect rate of steel mills. Attached Figure Description
[0014] Figure 1 A schematic diagram of the operation of the clamp protection device according to an embodiment of the present invention is shown;
[0015] Figure 2 A schematic diagram of the clamp protection device provided according to an embodiment of the present invention is shown;
[0016] Figure 3 A schematic diagram of a hanging platform structure according to an embodiment of the present utility model is shown;
[0017] Figure 4A schematic diagram of the positioning mechanism structure provided according to an embodiment of the present utility model is shown;
[0018] Figure 5 A schematic diagram of the third protective plate structure provided according to an embodiment of the present utility model is shown;
[0019] Figure 6 A schematic diagram of the positioning frame structure provided according to an embodiment of the present utility model is shown;
[0020] Figure 7 A schematic diagram of a knob structure according to an embodiment of the present invention is shown.
[0021] Legend: 1. Lifting beam; 2. Lifting frame; 3. First protective plate; 4. Second protective plate; 5. Third protective plate; 6. Guide wheel; 7. First slot; 8. First transmission rod; 9. Positioning frame; 10. First block; 11. First worm gear; 12. First limit seat; 13. Knob; 14. First worm; 15. First limit rod; 16. Second slot; 17. Limit slot; 18. Third slot; 19. Second transmission rod; 20. First positioning seat; 21. Limit block; 22. Positioning block; 23. Second positioning seat; 24. Transmission component; 25. Second worm gear; 26. Second limit seat; 27. Third transmission rod; 28. Second worm; 29. First gear; 30. Second gear; 31. Third limit seat; 32. Drive motor; 33. Lifting plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-7 This utility model provides a technical solution:
[0024] The steel coil hoisting clamp protection device includes a lifting beam 1, with two symmetrically arranged hangers 2 at both ends of the lifting beam 1. A first protective plate 3 is provided on one side of each hanger 2 facing away from the others. A hanging plate 33 is provided on the bottom side of each hanger 2. Guide wheels 6 are provided on both sides of each hanging plate 33. A second protective plate 4 is provided on one side of each hanging plate 33 facing away from the others. An arc-shaped third protective plate 5 is provided on the upper surface of the hanging plate 33. A positioning frame 9 is provided at the bottom of the third protective plate 5. A first strip groove 7 is provided on both sides of the hanging plate 33. A first strip block 10, adapted to the first strip groove 7, is provided inside the positioning frame 9. A positioning mechanism to prevent the steel coil from swaying is provided on the side of the hanging plate 33. The first protective plate 3, the second protective plate 4, and the third protective plate 5 are all made of polyurethane. Polyurethane has high strength and wear resistance, which can effectively improve the service life and safety of the hoisting clamp. The guide wheels 6 can increase the fault tolerance of the hoisting operation to a certain extent, making the hoisting process more flexible and stable.
[0025] Specifically, such as Figure 5 and Figure 6 As shown, the first strip groove 7 is provided with a first transmission rod 8 and a first limiting rod 15 inside. The first transmission rod 8 is rotatably connected to the inner wall of the first strip groove 7. The outer side of the first transmission rod 8 is threaded. The first transmission rod 8 is threadedly connected to the first strip block 10. The first limiting rod 15 is slidably connected to the first strip block 10. The side of the hanging plate 33 is provided with a first limiting seat 12. The first worm gear 14 is rotatably connected to the first limiting seat 12. The other end of the first worm gear 14 is provided with a knob 13. One end of the first transmission rod 8 is provided with a first worm wheel 11. The first worm gear 14 and the first worm wheel 11 are meshed together.
[0026] Specifically, such as Figure 3 and Figure 4 As shown, the positioning mechanism includes two positioning blocks 22, which are symmetrically arranged on both sides of the hanging plate 33. A second strip groove 16 is provided on both sides of the hanging plate 33. A second transmission rod 19 is rotatably connected in the second strip groove 16. Two first positioning seats 20 are symmetrically arranged on the second transmission rod 19. Two second positioning seats 23 are symmetrically arranged on the side of the positioning block 22. A transmission member 24 is provided between the first positioning seat 20 and the second positioning seat 23. One end of the transmission member 24 is rotatably connected to the first positioning seat 20, and the other end of the transmission member 24 is rotatably connected to the second positioning seat 23. Both ends of the second transmission rod 19 are threaded, and the threads at both ends of the second transmission rod 19 are screwed in opposite directions. The second transmission rod 19 is threadedly connected to the first positioning seat 20. A limit block 21 is provided on the side of the first positioning seat 20. A limit groove 17 is provided on the inner wall of the second strip groove 16. The limit block 21 and the limit groove 17 are slidably connected.
[0027] Specifically, such as Figure 3 and Figure 4As shown, a third strip groove 18 is provided on one side of each of the two hanging plates 33. A second limiting seat 26 is provided at both ends of the third strip groove 18. A third transmission rod 27 is rotatably connected to the second limiting seat 26. A second worm 28 is provided at both ends of the third transmission rod 27. A second worm wheel 25 is provided at one end of the second transmission rod 19. The second worm 28 and the second worm wheel 25 are meshed together. A first gear 29 is provided on the third transmission rod 27. A third limiting seat 31 is provided in the third strip groove 18. A drive motor 32 is provided on the third limiting seat 31. A second gear 30 is provided at the output end of the drive motor 32.
[0028] In summary, the steel coil lifting clamp protection device provided in this embodiment, when the lifting frame 2 lifts the steel coil, starts the drive motor 32. The second gear 30 drives the third transmission rod 27 to rotate through the first gear 29, and then the second worm 28 drives the worm wheel 25 to rotate. The second worm wheel 25 drives the second transmission rod 19 to rotate, and the two first positioning seats 20 move closer to each other. Under the action of the transmission component 24, the positioning block 22 abuts against the inner side of the steel coil. This can prevent the steel coil from shaking during the lifting process and causing safety hazards.
[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A steel coil hoisting clamp protection device, comprising a lifting beam (1), characterized in that, Two hangers (2) are symmetrically arranged at both ends of the lifting beam (1). A first protective plate (3) is provided on the opposite side of each of the two hangers (2). A hanging plate (33) is provided on the bottom side of the hanger (2). Guide wheels (6) are provided on both sides of the hanging plate (33). A second protective plate (4) is provided on the opposite side of each of the two hanging plates (33). An arc-shaped third protective plate (5) is provided on the upper surface of the hanging plate (33). A positioning frame (9) is provided at the bottom of the third protective plate (5). A first strip groove (7) is provided on both sides of the hanging plate (33). A first strip block (10) that matches the first strip groove (7) is provided on the inner side of the positioning frame (9). A positioning mechanism to prevent the steel coil from shaking is provided on the side of the hanging plate (33).
2. The steel coil hoisting clamp protection device according to claim 1, characterized in that, The first protective plate (3), the second protective plate (4) and the third protective plate (5) are all made of polyurethane.
3. The steel coil hoisting clamp protection device according to claim 2, characterized in that, The first strip groove (7) is provided with a first transmission rod (8) and a first limiting rod (15). The first transmission rod (8) is rotatably connected to the inner wall of the first strip groove (7). The outer side of the first transmission rod (8) is threaded. The first transmission rod (8) is threadedly connected to the first strip block (10). The first limiting rod (15) is slidably connected to the first strip block (10).
4. The steel coil hoisting clamp protection device according to claim 3, characterized in that, The side of the hanging plate (33) is provided with a first limiting seat (12), and a first worm (14) is rotatably connected to the first limiting seat (12). A knob (13) is provided at the other end of the first worm (14), and a first worm wheel (11) is provided at one end of the first transmission rod (8). The first worm (14) and the first worm wheel (11) are meshed together.
5. The steel coil hoisting clamp protection device according to claim 1, characterized in that, The positioning mechanism includes two positioning blocks (22), which are symmetrically arranged on both sides of the hanging plate (33). A second strip groove (16) is provided on both sides of the hanging plate (33). A second transmission rod (19) is rotatably connected in the second strip groove (16). Two first positioning seats (20) are symmetrically arranged on the second transmission rod (19). Two second positioning seats (23) are symmetrically arranged on the side of the positioning block (22). A transmission member (24) is provided between the first positioning seat (20) and the second positioning seat (23). One end of the transmission member (24) is rotatably connected to the first positioning seat (20), and the other end of the transmission member (24) is rotatably connected to the second positioning seat (23).
6. The steel coil hoisting clamp protection device according to claim 5, characterized in that, Both ends of the second transmission rod (19) are threaded, and the threads at both ends of the second transmission rod (19) are screwed in opposite directions. The second transmission rod (19) is threadedly connected to the first positioning seat (20). A limit block (21) is provided on the side of the first positioning seat (20), and a limit groove (17) is provided on the inner wall of the second strip groove (16). The limit block (21) and the limit groove (17) are slidably connected.
7. The steel coil hoisting clamp protection device according to claim 6, characterized in that, Each of the two hanging plates (33) has a third strip groove (18) on one side opposite to the other. Each of the two ends of the third strip groove (18) is provided with a second limiting seat (26). A third transmission rod (27) is rotatably connected to the second limiting seat (26). Each of the two ends of the third transmission rod (27) is provided with a second worm (28). One end of the second transmission rod (19) is provided with a second worm wheel (25). The second worm (28) and the second worm wheel (25) are meshed together. A first gear (29) is provided on the third transmission rod (27). A third limiting seat (31) is provided in the third strip groove (18). A drive motor (32) is provided on the third limiting seat (31). A second gear (30) is provided at the output end of the drive motor (32).