Anti-twisting steel wire rope rigging for hoisting

Abstract

The utility model relates to the technical field of steel wire ropes, in particular to an anti-twisting steel wire rope rigging for hoisting, which comprises an upper fixing plate, a fixing column is fixedly connected to the lower end face of the upper fixing plate, a rotating seat is fixedly connected to the bottom end of the fixing column, and a lower fixing plate is located under the upper fixing plate. The upper end face of the lower fixing plate is fixedly connected with a fixing rod, the top end of the fixing rod is fixedly connected with a rotating cylinder, the rotating cylinder is rotationally connected to the outer wall of a rotating seat, and through the design of a rotating pair of the rotating seat and the rotating cylinder, a lifting hook can freely rotate along with a heavy object, and torque is prevented from being transmitted to a steel wire sling rope; and the steel wire rope is prevented from being broken due to torsion and tension loss. The elastic belt provides buffering and enhances impact resistance while limiting the rotation amplitude, the ball structure reduces rotation friction loss, the wear-resistant coating prolongs the service life of key components, the whole scheme does not need a complex transmission mechanism, the manufacturing cost is reduced while the safety is guaranteed, and the lifting device is suitable for various lifting scenes.

Description

Technical Field

[0001] This utility model relates to the field of wire rope technology, and specifically discloses an anti-twist wire rope sling for lifting. Background Technology

[0002] A wire rope is a helical bundle of steel wires twisted together according to specific rules, meeting requirements for mechanical properties and geometric dimensions. It consists of steel wires, a core, and lubricant. The process involves first twisting multiple layers of steel wires into strands, then winding a certain number of strands around the core to form a helical shape. In material handling machinery, it is used for lifting, traction, tensioning, and load-bearing. Wire ropes are characterized by high strength, light weight, smooth operation, and resistance to sudden breakage, ensuring reliable operation.

[0003] When steel wire ropes are used to lift heavy objects, the imbalance of gravity during lifting often causes the rope to deflect. When the rope deflects severely, the spiral-shaped steel wire rope will lose tension and may even break. Utility Model Content

[0004] This utility model proposes an anti-torsion type wire rope sling for lifting. Through the design of the rotating pair of the swivel seat and the rotating drum, the hook can rotate freely with the load, avoiding the transmission of torque to the wire rope and preventing the wire rope from breaking due to torsion and tension at the source.

[0005] This utility model is implemented as follows: a lifting anti-twist steel wire rope sling includes:

[0006] An upper fixing plate is provided, with a fixing post fixedly connected to the lower end face of the upper fixing plate, and a rotating seat fixedly connected to the bottom end of the fixing post.

[0007] A lower fixing plate is located directly below the upper fixing plate. A fixing rod is fixedly connected to the upper end face of the lower fixing plate. A rotating cylinder is fixedly connected to the top end of the fixing rod. The rotating cylinder is rotatably connected to the outer wall of the rotating seat. A cap is provided at the top end of the rotating cylinder. Multiple ball bearings are rotatably connected to the outer wall and top end of the rotating seat. Multiple evenly distributed through holes are opened through the outer walls of both the upper and lower fixing plates. An elastic band passes through between two through holes located on the same vertical line.

[0008] As a preferred embodiment of the anti-twist steel wire rope sling for lifting according to this utility model, the inner wall of the rotating drum is coated with a wear-resistant coating.

[0009] As a preferred embodiment of the anti-torsion steel wire rope rigging for lifting according to this utility model, both ends of the elastic band are fixedly connected to limit blocks.

[0010] As a preferred embodiment of the anti-twist steel wire rope sling for lifting according to this utility model, a steel wire sling rope is fixedly connected to the top of the upper fixing plate, and a hook is fixedly connected to the bottom of the lower fixing plate.

[0011] As a preferred embodiment of the anti-torsion steel wire rope rigging for lifting according to this utility model, the elastic band is made of strands of nylon rope and polypropylene rope.

[0012] As a preferred embodiment of the anti-torsion steel wire rope rigging for lifting according to this utility model, the cover is detachably connected by multiple fixing bolts and a rotating drum.

[0013] As a preferred embodiment of the anti-twist steel wire rope sling for lifting according to this utility model, the top of the cover is provided with a round hole, and the fixing column passes through the round hole.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a rotating joint design between the swivel base and the rotating drum, allowing the hook to rotate freely with the load, preventing torque transmission to the wire rope and thus preventing breakage due to torsional tension. The elastic band provides cushioning while limiting the rotation amplitude, enhancing impact resistance; the ball bearing structure reduces rotational friction loss; and the wear-resistant coating extends the lifespan of key components. The overall solution eliminates the need for complex transmission mechanisms, reducing manufacturing costs while ensuring safety, and is suitable for various lifting scenarios. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 2 This is a diagram showing the overall external structure of the present invention;

[0019] Figure 3 This is a top view of the upper fixing plate of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the cap of this utility model.

[0021] The markings in the diagram are: 1. Upper fixing plate; 2. Fixing column; 3. Rotary seat; 4. Lower fixing plate; 5. Fixing rod; 6. Rotary cylinder; 7. Cover; 8. Ball bearing; 9. Through hole; 10. Elastic band; 11. Limiting block; 12. Steel wire sling rope; 13. Hook; 14. Fixing bolt. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-4 A type of anti-torsion wire rope sling for lifting, comprising:

[0024] The upper fixing plate 1 has a fixing post 2 fixedly connected to its lower end face, and a rotating seat 3 fixedly connected to the bottom end of the fixing post 2.

[0025] The lower fixing plate 4 is located directly below the upper fixing plate 1. A fixing rod 5 is fixedly connected to the upper end face of the lower fixing plate 4. A rotating cylinder 6 is fixedly connected to the top of the fixing rod 5. The rotating cylinder 6 is rotatably connected to the outer wall of the rotating seat 3. A cover 7 is provided at the top of the rotating cylinder 6. Multiple balls 8 are rotatably connected to the outer wall and top of the rotating seat 3. Multiple evenly distributed through holes 9 are opened through the outer walls of both the upper fixing plate 1 and the lower fixing plate 4. An elastic band 10 passes through between two through holes 9 located on the same vertical line.

[0026] In this embodiment: the upper fixed plate 1 is connected to the rotating base 3 via the fixed post 2, forming a rotating pair with the rotating cylinder 6 of the lower fixed plate 4. The ball bearings 8 on the outer wall and top of the rotating base 3 roll in contact with the inner wall of the rotating cylinder 6, allowing the hook 13 to drive the lower fixed plate 4 to rotate freely. At the same time, the elastic band 10 passes through the through hole 9 and connects the upper and lower fixed plates, limiting the rotation amplitude. The cover 7 seals the top of the rotating cylinder 6 to prevent foreign objects from entering. The elastic band 10 is made of nylon and polypropylene strands, possessing both tensile strength and elastic deformation capability. The steel wire sling rope 12 passes through the upper fixed plate 1. Bearing vertical loads, the lower fixed plate 4 connected to the hook 13 rotates with the load, preventing torque from being transmitted to the wire rope and preventing the wire rope from breaking due to torsion and tension at the source. At this time, the rotating drum 6 rotates around the rotating seat 3, and the ball bearings 8 roll on the inner wall of the rotating drum 6, reducing rotational resistance. The elastic band 10 passes through the through hole 9 of the upper and lower fixed plates and is stretched and deformed during rotation. When the rotation angle is too large, the tension of the elastic band 10 limits further torsion. If the heavy object collides and causes violent rotation, the elastic deformation of the elastic band 10 absorbs the impact energy.

[0027] As a technical optimization of this utility model, the inner wall of the rotating drum 6 is coated with a wear-resistant coating.

[0028] In this embodiment, the inner wall of the rotating drum 6 is coated with a wear-resistant coating to extend the service life of the rotating pair.

[0029] As a technical optimization of this utility model, both ends of the elastic band 10 are fixedly connected to limit blocks 11.

[0030] In this embodiment, both ends of the elastic band 10 are fixedly connected to limit blocks 11, and the limit blocks 11 at both ends of the elastic band 10 form a mechanical jamming to prevent the elastic band from slipping out of the through hole 9.

[0031] As a technical optimization of this utility model, a steel wire sling rope 12 is fixedly connected to the top of the upper fixing plate 1, and a hook 13 is fixedly connected to the bottom of the lower fixing plate 4.

[0032] In this embodiment, the steel wire sling rope 12 and the hook 13 are respectively fixed to the upper and lower fixed plates to achieve load separation between the rotating section and the fixed section.

[0033] As a technical optimization of this utility model, the elastic band 10 is made of nylon rope and polypropylene rope twisted together.

[0034] In this embodiment, the elastic band 10 is made of nylon and polypropylene strands, which have both tensile strength and elastic deformation capability.

[0035] As a technical optimization of this utility model, the cover 7 is detachably connected to the rotating cylinder 6 by multiple fixing bolts 14.

[0036] In this embodiment, the cover 7 is detachably connected to the rotating cylinder 6 by multiple fixing bolts 14, which facilitates maintenance of the interior of the rotating cylinder 6.

[0037] As a technical optimization of this utility model, the top of the cover 7 is provided with a round hole, and the fixing post 2 passes through the round hole.

[0038] In this embodiment: a round hole is provided at the top of the cover 7, and the fixing post 2 passes through the round hole to facilitate the connection between the fixing post 2 and the rotating seat 3.

[0039] The working principle and usage process of this utility model are as follows: During use, the steel wire sling rope 12 bears the vertical load through the upper fixed plate 1, and the lower fixed plate 4 connected to the hook 13 rotates with the load, avoiding the transmission of torque to the steel wire sling rope and preventing the steel wire rope from breaking due to torsion and tension at the source. At this time, the rotating drum 6 rotates around the rotating seat 3, and the ball bearing 8 rolls on the inner wall of the rotating drum 6 to reduce the rotation resistance. The elastic band 10 passes through the through hole 9 of the upper and lower fixed plates and is stretched and deformed during rotation. When the rotation angle is too large, the tension of the elastic band 10 limits further torsion. If the heavy object collides and causes violent rotation, the elastic deformation of the elastic band 10 absorbs the impact energy.

[0040] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A type of anti-torsion wire rope sling for lifting, characterized in that: include: The upper fixing plate (1) has a fixing column (2) fixedly connected to its lower end face, and a rotating seat (3) fixedly connected to the bottom end of the fixing column (2). The lower fixing plate (4) is located directly below the upper fixing plate (1). A fixing rod (5) is fixedly connected to the upper end face of the lower fixing plate (4). A rotating cylinder (6) is fixedly connected to the top end of the fixing rod (5). The rotating cylinder (6) is rotatably connected to the outer wall of the rotating seat (3). A cover (7) is provided at the top end of the rotating cylinder (6). Multiple balls (8) are rotatably connected to the outer wall and top end of the rotating seat (3). Multiple evenly distributed through holes (9) are opened through the outer walls of the upper fixing plate (1) and the lower fixing plate (4). An elastic band (10) passes through the two through holes (9) on the same vertical line.

2. The anti-torsion steel wire rope sling for lifting according to claim 1, characterized in that: The inner wall of the rotating drum (6) is coated with a wear-resistant coating.

3. The anti-torsion steel wire rope sling for lifting according to claim 1, characterized in that: Limiting blocks (11) are fixedly connected to both ends of the elastic band (10).

4. The anti-torsion steel wire rope sling for lifting according to claim 1, characterized in that: The top of the upper fixing plate (1) is fixedly connected with a steel wire sling rope (12), and the bottom of the lower fixing plate (4) is fixedly connected with a hook (13).

5. The anti-torsion steel wire rope sling for lifting according to claim 1, characterized in that: The elastic band (10) is made of nylon rope and polypropylene rope twisted together.

6. The anti-torsion steel wire rope sling for lifting according to claim 1, characterized in that: The cover (7) is detachably connected by multiple fixing bolts (14) and a rotating cylinder (6).

7. The anti-torsion steel wire rope sling for lifting according to claim 2, characterized in that: The top of the cover (7) has a round hole, and the fixing post (2) passes through the round hole.

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