Anti-slip hoisting device for heat treatment of a reel

By designing specialized hoisting equipment and utilizing clamping rods and anti-slip pads to increase the contact area and friction, the slippage problem caused by oxide scale and thermal expansion and contraction during the heat treatment of the drum was solved, thus achieving stability and safety in the hoisting process.

CN224477834UActive Publication Date: 2026-07-10XUZHOU TIANTAI MACHINERY MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU TIANTAI MACHINERY MFG
Filing Date
2025-09-01
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

During the heat treatment of the drum, the loose oxide scale formed by surface oxidation at high temperature reduces friction. Traditional lifting tools are difficult to provide uniform clamping force due to thermal expansion and contraction deformation, which makes slippage easy to occur during lifting.

Method used

A hoisting device was designed, comprising a crane beam, a winding motor, an electric hoist, clamping rods, and anti-slip pads. By sliding the clamping rods and using the anti-slip pads, the contact area and friction are increased, ensuring hoisting stability.

Benefits of technology

This effectively avoids slippage of the drum during hoisting, improving the safety and stability of hoisting and transportation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224477834U_ABST
    Figure CN224477834U_ABST
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Abstract

The utility model belongs to the reel heat treatment technical field, concretely relates to the hoisting equipment of reel heat treatment is prevented to slip, including travelling beam and the winding motor of installation in the surface of travelling beam, the output of winding motor is connected with the winding roll, winding roll is connected with electric hoist through steel wire, the bottom of electric hoist is connected with the adjusting horizontal plate, the both ends of adjusting horizontal plate are connected with the clamping rod, the bottom inboard of clamping rod is connected with the lifting plate, the utility model discloses the reel of heat treatment is clamped to clamping rod, control drive motor at this time, drive screw rod to move in the inside of clamping rod at this time, slide along the guide rod with the driving block simultaneously, the auxiliary clamping block of linkage block bottom surface simultaneously drive the outside surface of reel is auxiliary clamped, increase the contact area, make clamping rod and reel between clamping stable, avoid the phenomenon that reel appears to slip when hoisting, improve the effect of hoisting transfer.
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Description

Technical Field

[0001] This utility model belongs to the field of heat treatment technology for rolls, specifically relating to a hoisting device for preventing slippage during heat treatment of rolls. Background Technology

[0002] The anti-slip hoisting equipment for heat treatment of coils is a specialized hoisting device designed specifically for metal coils (such as rolling mill coils in the metallurgical industry and paper rolls in the papermaking industry) during heat treatment processes (quenching, tempering, annealing, etc.). Its core function is to prevent slippage caused by surface oxidation, gravity shift, or insufficient friction when hoisting the coils at high temperatures through structural optimization and intelligent control, thus ensuring the safety, stability, and continuity of the heat treatment process.

[0003] Specifically, metal drums, as core components in industries such as metallurgy, papermaking, and heavy machinery, directly affect the operational stability of equipment due to their mechanical properties. Therefore, heat treatment processes such as quenching and tempering are necessary to improve their strength, hardness, and wear resistance. However, during heat treatment, the surface of the drum undergoes a severe oxidation reaction at high temperatures, forming a loose oxide scale, mainly composed of metal oxides. This oxide scale not only reduces surface roughness but is also prone to peeling off, leading to a sharp reduction in friction at the contact interface. Simultaneously, the drum's own temperature can reach 500-1200℃. This high temperature causes deformation at the contact points of traditional lifting tools, such as ordinary hooks and wire ropes, due to thermal expansion and contraction. Furthermore, the drum's weight typically ranges from several tons to tens of tons, making it difficult for traditional lifting tools to provide uniform and sustained clamping force. These combined factors easily lead to slippage during lifting operations. Utility Model Content

[0004] The purpose of this invention is to provide a lifting device for preventing slippage during the heat treatment of lifting drums. It addresses the problem that during heat treatment, the surface of the drum undergoes a severe oxidation reaction at high temperatures, forming a loose oxide layer primarily composed of metal oxides. This oxide layer not only reduces surface roughness but also easily detaches, leading to a sharp decrease in friction at the contact interface. Simultaneously, the drum's own temperature can reach 500-1200℃. This high temperature causes deformation at the contact points of traditional lifting tools, such as ordinary hooks and wire ropes, due to thermal expansion and contraction. Furthermore, the drum's weight typically ranges from several tons to tens of tons, making it difficult for traditional lifting tools to provide uniform and sustained clamping force. These multiple factors combined easily lead to slippage during lifting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device for preventing slippage during drum heat treatment, comprising a crane beam and a winding motor mounted on the surface of the crane beam, wherein the output end of the winding motor is connected to a winding roller, the winding roller is connected to an electric hoist via a steel wire, the bottom end of the electric hoist is connected to an adjusting plate, both ends of the adjusting plate are connected to clamping rods, and the bottom inner side of the clamping rods is connected to a lifting plate;

[0006] The outer wall of the clamping rod has a heat dissipation vent, the top of the inner wall of the clamping rod is connected to a drive motor, the output end of the drive motor is connected to a lead screw, the surface of the lead screw is connected to an adjustment block, one side of the adjustment block is connected to a linkage block, the bottom surface of the linkage block is connected to an auxiliary clamping block, and a guide rod is installed inside the clamping rod.

[0007] To facilitate the directional movement of the adjusting block, and as a lifting device for preventing slippage during drum heat treatment, the lead screw is preferably connected to the adjusting block, and the guide rod passes through the surface of the adjusting block.

[0008] To facilitate auxiliary clamping, as a lifting device for preventing slippage during the heat treatment of the roll of this utility model, preferably, the adjusting block and the opening on the inner wall of the clamping rod form a sliding connection structure, and the auxiliary clamping block is made of steel.

[0009] To further enhance the anti-slip effect, as a hoisting device for preventing slippage during drum heat treatment of this utility model, preferably, the surface of the lifting plate is connected to an anti-slip pad, which is a ceramic particle composite material.

[0010] To facilitate the assembly and connection of the anti-slip pad, as a lifting device for preventing slippage during the heat treatment of the roll of this utility model, preferably, both sides of the anti-slip pad are connected to mounting side plates, the inner side of the mounting side plates is connected to a docking block, and the side of the lifting plate near the docking block is connected to a mounting groove.

[0011] To facilitate the stable installation of the anti-slip pad, as a hoisting device for preventing slippage during the heat treatment of the roll of this utility model, preferably, the inner wall of the docking block is connected to a linkage spring, the other end of the linkage spring is connected to a telescopic plate, and the other side of the telescopic plate is connected to a buckle, the buckle and the opening of the inner wall of the mounting groove form a fitting structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention clamps the heat-treated drum with a clamping rod. At the same time, the drive motor is controlled to move the lead screw inside the clamping rod, while the adjusting block slides along the guide rod. Simultaneously, the auxiliary clamping block on the bottom of the linkage block assists in clamping the outer surface of the drum, increasing the contact area and making the clamping rod and drum stable. This prevents the drum from slipping during hoisting and improves the efficiency of hoisting and transportation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of the hoisting equipment provided in the embodiments of this application.

[0016] Figure 2 This is a schematic diagram of the adjustment block connection structure provided in an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the auxiliary clamping block structure provided in an embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the anti-slip pad installation structure provided in an embodiment of this application.

[0019] Figure 5 This is an exploded view of the anti-slip pad installation structure provided in the embodiments of this application.

[0020] In the diagram: 1. Crane crossbeam; 2. Rewinding motor; 3. Rewinding roller; 4. Electric hoist; 5. Adjusting cross plate; 6. Clamping rod; 7. Lifting plate; 8. Heat dissipation vent; 9. Drive motor; 10. Lead screw; 11. Adjusting block; 12. Linkage block; 13. Auxiliary clamping block; 14. Guide rod; 15. Anti-slip pad; 16. Mounting side plate; 17. Connecting block; 18. Linkage spring; 19. Telescopic plate; 20. Buckle; 21. Mounting slot. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 The present invention provides the following technical solution: a hoisting device for preventing slippage during heat treatment of a roll, comprising a traveling beam 1 and a winding motor 2 mounted on the surface of the traveling beam 1, the output end of the winding motor 2 being connected to a winding roller 3, the winding roller 3 being connected to an electric hoist 4 via a steel wire, the bottom end of the electric hoist 4 being connected to an adjusting plate 5, both ends of the adjusting plate 5 being connected to clamping rods 6, and the inner side of the bottom end of the clamping rods 6 being connected to a lifting plate 7;

[0023] The outer wall of the clamping rod 6 is provided with a heat dissipation vent 8. The top of the inner wall of the clamping rod 6 is connected to a drive motor 9. The output end of the drive motor 9 is connected to a lead screw 10. An adjustment block 11 is connected to the surface of the lead screw 10. A linkage block 12 is connected to one side of the adjustment block 11. An auxiliary clamping block 13 is connected to the bottom surface of the linkage block 12. A guide rod 14 is installed inside the clamping rod 6.

[0024] Preferably, the lead screw 10 and the adjusting block 11 are connected, and the guide rod 14 passes through the surface of the adjusting block 11. In actual use, by moving the adjusting block 11 along the lead screw 10, it is convenient to move the linkage block 12 synchronously.

[0025] Preferably, the adjusting block 11 and the opening on the inner wall of the clamping rod 6 form a sliding connection structure, and the auxiliary clamping block 13 is made of steel. In actual use, by sliding the adjusting block 11 up and down on the inner wall of the clamping rod 6, the auxiliary clamping block 13 can be adjusted up and down, thereby facilitating the stable clamping of drums of different specifications.

[0026] Preferably, the surface of the lifting plate 7 is connected to an anti-slip pad 15, which is made of ceramic particle composite material. In actual use, the anti-slip pad 15 increases the friction between the plate and the drum, ensuring an anti-slip effect during hoisting.

[0027] Preferably, both sides of the anti-slip pad 15 are connected to mounting side plates 16, the inner side of the mounting side plate 16 is connected to a mating block 17, and the side of the lifting plate 7 near the mating block 17 is connected to a mounting groove 21. In actual use, by installing and fitting the mating block 17 on the side of the mounting side plate 16 with the mounting groove 21 on the side of the lifting plate 7, the anti-slip pad 15 can be stably connected.

[0028] Preferably, a linkage spring 18 is connected to the inner wall of the mating block 17, and a telescopic plate 19 is connected to the other end of the linkage spring 18. A buckle 20 is connected to the other side of the telescopic plate 19, and the buckle 20 and the opening of the inner wall of the mounting groove 21 form a fitting structure. In actual use, by fitting the buckle 20 into the inner wall of the mounting groove 21, it is convenient to install the anti-slip pad 15 stably.

[0029] The working principle of this utility model is as follows: First, the clamping rod 6 clamps the heat-treated drum. At this time, the drive motor 9 is controlled, which drives the lead screw 10 to move inside the clamping rod 6. Simultaneously, the adjusting block 11 slides along the guide rod 14, and the auxiliary clamping block 13 on the bottom of the linkage block 12 assists in clamping the outer surface of the drum, increasing the contact area and making the clamping rod 6 and the drum stable, avoiding slippage of the drum during hoisting and improving the hoisting and transportation effect. In addition, the anti-slip pad 15 is installed on the surface of the lifting plate 7. At this time, the mounting side plate 16 on the side of the anti-slip pad 15 is assembled with the lifting plate 7. In addition, the connecting block 17 on the inner side of the mounting side plate 16 is engaged with the mounting groove 21 on the surface of the lifting plate 7. At the same time, the elastic structure of the linkage spring 18 drives the buckle 20 to engage with the opening of the inner wall of the mounting groove 21. This facilitates the stable installation of the anti-slip pad 15, further increasing the friction between it and the drum and further improving the anti-slip effect.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hoisting device for preventing slippage during heat treatment of rolls, comprising a crane beam (1) and a winding motor (2) mounted on the surface of the crane beam (1), characterized in that: The output end of the winding motor (2) is connected to the winding roller (3), the winding roller (3) is connected to the electric hoist (4) by steel wire, the bottom end of the electric hoist (4) is connected to the adjusting plate (5), both ends of the adjusting plate (5) are connected to the clamping rod (6), and the bottom inner side of the clamping rod (6) is connected to the lifting plate (7). The outer wall of the clamping rod (6) is provided with a heat dissipation vent (8). The top of the inner wall of the clamping rod (6) is connected to a drive motor (9). The output end of the drive motor (9) is connected to a lead screw (10). An adjustment block (11) is connected to the surface of the lead screw (10). A linkage block (12) is connected to one side of the adjustment block (11). An auxiliary clamping block (13) is connected to the bottom surface of the linkage block (12). A guide rod (14) is installed inside the clamping rod (6).

2. The anti-slip hoisting equipment for heat treatment of rolls according to claim 1, characterized in that: The lead screw (10) is connected to the adjusting block (11), and the guide rod (14) passes through the surface of the adjusting block (11).

3. The anti-slip hoisting equipment for drum heat treatment according to claim 1, characterized in that: The adjusting block (11) and the opening on the inner wall of the clamping rod (6) form a sliding connection structure, and the auxiliary clamping block (13) is made of steel.

4. The anti-slip hoisting equipment for heat treatment of rolls according to claim 1, characterized in that: The surface of the lifting plate (7) is connected to an anti-slip pad (15), which is a ceramic particle composite material.

5. The anti-slip hoisting equipment for heat treatment of rolls according to claim 4, characterized in that: The anti-slip pad (15) is connected to mounting side plates (16) on both sides, and the mounting side plates (16) are connected to a mating block (17) on the inner side. The lifting plate (7) is connected to a mounting groove (21) on the side near the mating block (17).

6. The anti-slip hoisting equipment for heat treatment of rolls according to claim 5, characterized in that: The inner wall of the docking block (17) is connected to a linkage spring (18), the other end of the linkage spring (18) is connected to a telescopic plate (19), and the other side of the telescopic plate (19) is connected to a buckle (20). The buckle (20) and the opening of the inner wall of the mounting groove (21) form a fitting structure.