Wear-resistant heavy hoisting rigging

Abstract

The utility model discloses a wear-resistant heavy hoisting rigging, which belongs to the field of hoisting rigging and comprises a connecting shaft, a hoisting shaft is rotatably connected to the lower bottom end of the connecting shaft, a gravity component is arranged at the lower bottom end of the hoisting shaft and comprises a connector rotatably connected to the lower bottom end of the hoisting shaft, and a connecting ring is sleeved in the connector. Through cooperative use of the devices, the use safety of the steel wire rope can be improved, the situation that the safety of operators is affected due to the swinging phenomenon generated by gravity in the lifting process is avoided, and when the lifting appliance is lifted, due to the fact that the gravity pipe is arranged in the steel wire rope and the gravity steel ball is slidably connected into the gravity pipe, the safety of the operators is improved. Due to gravity and inertia, when the steel wire rope is gradually erected, the steel ball falls, so that the steel wire rope falls due to gravity, the phenomenon that the steel wire rope is thrown disorderly due to inertia is avoided, the assembly is high in practicability, mutual abrasion of the steel wire rope during use can be avoided, and the service life of the steel wire rope is prolonged.

Description

A wear-resistant heavy-duty lifting sling Technical Field

[0001] This utility model relates to the field of lifting sling technology, specifically a wear-resistant heavy lifting sling. Background Technology

[0002] Lifting slings are devices used in lifting operations to connect the object being lifted to a crane or other lifting equipment to achieve safe and reliable lifting. Common lifting slings include wire rope slings, chain slings, and slings. They have strong load-bearing capacity. For example, wire rope slings can withstand large weights and can meet the lifting needs of various large equipment and components.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN221796729U) discloses a lifting sling, comprising a load-bearing ring, four connecting rings, and two steel wire ropes. Each end of one of the two steel wire ropes has a connecting ring welded to it. Both connecting rings are fitted inside the load-bearing ring. A lifting ring is fitted inside the connecting ring at the other end of each of the two steel wire ropes. A connecting rod is fixedly mounted at the bottom end of each of the two lifting rings, and a disc is fixedly mounted at the bottom end of each of the two connecting rods. A fixing post is rotatably mounted on the outer end of each of the two discs. In this utility model, by fixing connecting rods at the bottom end of the two lifting rings and rotating the discs at the bottom end of the two connecting rods within a fixing groove at the top of the fixing post, the direction of the hook at the bottom end of the fixing post can be flexibly adjusted. This also reduces the continuous rotation of the steel wire ropes after the heavy object is lifted, thus reducing wear on the steel wire ropes.

[0004] Although the aforementioned patent, through the design of components such as lifting rings, connecting rods, and fixing columns, allows for relatively flexible adjustment of the hook at the bottom of the fixing column and reduces wire rope wear, the fact that most wire ropes are braided makes them prone to shrinkage under the pull of gravity after use. When lifted, the wire rope itself has a certain weight, and due to inertia, it is prone to swinging in the air, which affects the personal safety of the operators and is not conducive to the operators' construction and hoisting work.

[0005] Therefore, this utility model provides a wear-resistant heavy-duty lifting sling to solve the above problems. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] This invention provides a wear-resistant heavy-duty lifting sling, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A wear-resistant heavy lifting sling includes a connecting shaft, a lifting shaft being rotatably connected to the lower end of the connecting shaft, and a gravity component being provided at the lower end of the lifting shaft.

[0011] The gravity assembly includes a connector rotatably connected to the bottom end of the hanging shaft. A connecting ring is sleeved inside the connector. A steel wire rope is fixedly connected inside the connecting ring. A gravity tube is installed inside the steel wire rope. A gravity steel ball is slidably connected inside the gravity tube. A plug is threaded to the inner wall of the gravity tube. A prestressing assembly is installed on the side wall of the connecting ring.

[0012] As a preferred technical solution of this application, the prestressed component includes a prestressed tendon fixedly connected to the side wall of the connecting ring, a clamping sleeve fixedly sleeved on the outer wall of the wire rope, the end of the prestressed tendon being fixedly connected to the side wall of the clamping sleeve, and a damping component being provided on the side wall of the connecting ring.

[0013] As a preferred technical solution of this application, the damping assembly includes a buffer seat fixedly connected to the side wall of the connecting ring, a damping sleeve fixedly connected to the inner wall of the buffer seat, a damping rod slidably connected to the inner wall of the damping sleeve, the damping rod being fixedly connected to the side wall of one of the buffer seats, and a lubrication assembly provided on the outer wall of the wire rope.

[0014] As a preferred technical solution of this application, the lubrication assembly includes an oil reservoir fixedly connected to the side wall of the connector, an abutment plate slidably connected to the inner wall of the oil reservoir, a screw threadedly connected to the top of the oil reservoir, oil-absorbing cotton fixedly connected inside the oil reservoir, and a hook-up assembly provided at the end of the wire rope.

[0015] As a preferred technical solution of this application, the hooking component includes a ring sleeve fixedly fitted onto the outer wall of the wire rope, and a hook is rotatably connected to the inner wall of the ring sleeve.

[0016] As a preferred technical solution of this application, the side wall of the hook is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a stop bar.

[0017] (III) Beneficial Effects

[0018] By incorporating a gravity component, the safety of wire ropes can be improved, preventing swaying due to gravity during lifting and ensuring operator safety. When the lifting device is lifted, the wire rope is equipped with a gravity tube containing a slidingly connected gravity steel ball. Due to gravity and inertia, as the wire rope gradually rises, the steel ball falls, causing the wire rope to sag under gravity, preventing it from swinging wildly due to inertia. This component has a simple structure, is highly practical, and can prevent mutual wear between wire ropes during use, thus extending the service life of the wire rope. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of a wear-resistant heavy lifting sling;

[0020] Figure 2 is a schematic diagram of the structure of a gravity steel ball in a wear-resistant heavy lifting sling;

[0021] Figure 3 is a schematic diagram of the prestressed tendons in a wear-resistant heavy lifting sling;

[0022] Figure 4 is a schematic diagram of the structure of oil-absorbing cotton in a wear-resistant heavy lifting sling.

[0023] In the picture:

[0024] 1. Connecting shaft; 2. Hanging shaft; 3. Connector; 4. Connecting ring; 5. Wire rope; 6. Gravity tube; 7. Gravity steel ball; 8. Plug; 9. Prestressed tendon; 10. Sleeve; 11. Buffer seat; 12. Damping sleeve; 13. Damping rod; 14. Oil reservoir; 15. Abutment plate; 16. Screw; 17. Oil-absorbing cotton; 18. Ring sleeve; 19. Hook; 20. Rotating shaft. Detailed Implementation

[0025] 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.

[0026] This utility model provides a wear-resistant heavy lifting sling, as shown in Figures 1-4. The wear-resistant heavy lifting sling includes a connecting shaft 1, a lifting shaft 2 rotatably connected to the lower end of the connecting shaft 1, and a gravity component provided at the lower end of the lifting shaft 2.

[0027] The gravity assembly includes a connector 3 rotatably connected to the bottom end of the hanging shaft 2. A connecting ring 4 is sleeved inside the connector 3. A steel wire rope 5 is fixedly connected inside the connecting ring 4. A gravity tube 6 is installed inside the steel wire rope 5. A gravity steel ball 7 is slidably connected inside the gravity tube 6. A plug 8 is threadedly connected to the inner wall of the gravity tube 6. A prestressing assembly is installed on the side wall of the connecting ring 4.

[0028] The prestressed assembly includes a prestressed tendon 9 fixedly connected to the side wall of the connecting ring 4, a clamp 10 fixedly sleeved on the outer wall of the wire rope 5, the end of the prestressed tendon 9 being fixedly connected to the side wall of the clamp 10, and a damping assembly provided on the side wall of the connecting ring 4.

[0029] The damping assembly includes a buffer seat 11 fixedly connected to the side wall of the connecting ring 4, a damping sleeve 12 fixedly connected to the inner wall of the buffer seat 11, a damping rod 13 slidably connected to the inner wall of the damping sleeve 12, the damping rod 13 being fixedly connected to the side wall of one of the buffer seats 11, and a lubrication assembly provided on the outer wall of the wire rope 5.

[0030] Specifically, the connecting shaft 1 facilitates quick connection between the lifting device and the hoisting equipment, while the lifting shaft 2 allows the lifting device to rotate below the connecting shaft 1, facilitating the hoisting of items. The gravity component ensures that the wire rope 5 is quickly brought into a vertical position by gravity during use, preventing it from swinging in the air due to inertia and causing injury to operators. The connecting ring 4 facilitates the connection of the wire rope 5. When the wire rope 5 is in use, as the lifting angle of the wire rope 5 gradually increases, the gravity steel ball 7 inside the gravity tube 6 will continuously slide within it under gravity, eventually sliding to one end of the gravity tube 6. The large gravity of the steel ball 7 quickly brings the wire rope 5 into a vertical descent state, facilitating safe use of the lifting equipment. The prestressed assembly, with the prestressed tendon 9 connected to the connecting ring 4 and the clamp 10, applies a pre-existing inward force to the wire rope 5, reducing damage caused by gravity during lifting. Combined with the damping assembly, the damping sleeve 12 and damping rod 13 prevent the two connecting rings 4 from colliding during use. This assembly is simple in structure, highly practical, and improves the safety of the operator's working environment, preventing potential hazards caused by the swinging of the wire rope 5 during lifting.

[0031] The lubrication assembly includes an oil reservoir 14 fixedly connected to the side wall of the connector 3, an abutment plate 15 slidably connected to the inner wall of the oil reservoir 14, a screw 16 threadedly connected to the top of the oil reservoir 14, an oil-absorbing cotton 17 fixedly connected inside the oil reservoir 14, and a hook-and-hold assembly provided at the end of the wire rope 5.

[0032] The hook assembly includes a ring 18 fixedly sleeved on the outer wall of the wire rope 5, and a hook 19 rotatably connected to the inner wall of the ring 18.

[0033] The side wall of hook 19 is rotatably connected to a pivot 20, and the outer wall of pivot 20 is fixedly connected to a stop bar.

[0034] Specifically, by setting up the lubrication components, a certain amount of lubricating oil can be stored in advance to lubricate the outer wall of the wire rope 5 regularly, avoiding breakage caused by reduced lubrication after prolonged use. By continuously rotating the screw 16, it gradually moves to the top of the oil reservoir 14, causing the abutment plate 15 to continuously abut against the oil-absorbing cotton 17, squeezing out the lubricating oil absorbed in the oil-absorbing cotton 17 and dripping it from the groove at the bottom of the oil reservoir 14 onto the outer wall of the wire rope 5. By improving the lubricity of the wire rope 5, wear can be reduced and its service life extended.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wear-resistant heavy-duty lifting sling, comprising a connecting shaft (1), characterized in that: The lower end of the connecting shaft (1) is rotatably connected to the hanging shaft (2), and the lower end of the hanging shaft (2) is provided with a gravity component; the gravity component includes a connector (3) rotatably connected to the lower end of the hanging shaft (2), a connecting ring (4) is sleeved inside the connector (3), a steel wire rope (5) is fixedly connected inside the connecting ring (4), a gravity tube (6) is provided inside the steel wire rope (5), a gravity steel ball (7) is slidably connected inside the gravity tube (6), a plug (8) is threadedly connected to the inner wall of the gravity tube (6), and a prestressing component is provided on the side wall of the connecting ring (4).

2. The wear-resistant heavy-duty lifting sling according to claim 1, characterized in that: The prestressed assembly includes a prestressed tendon (9) fixedly connected to the side wall of the connecting ring (4), a clamp (10) fixedly sleeved on the outer wall of the wire rope (5), the end of the prestressed tendon (9) being fixedly connected to the side wall of the clamp (10), and a damping assembly provided on the side wall of the connecting ring (4).

3. The wear-resistant heavy-duty lifting sling according to claim 2, characterized in that: The damping assembly includes a buffer seat (11) fixedly connected to the side wall of the connecting ring (4), a damping sleeve (12) fixedly connected to the inner wall of the buffer seat (11), a damping rod (13) slidably connected to the inner wall of the damping sleeve (12), the damping rod (13) being fixedly connected to the side wall of one of the buffer seats (11), and a lubrication assembly provided on the outer wall of the wire rope (5).

4. The wear-resistant heavy-duty lifting sling according to claim 3, characterized in that: The lubrication assembly includes an oil reservoir (14) fixedly connected to the side wall of the connector (3), an abutment plate (15) slidably connected to the inner wall of the oil reservoir (14), a screw (16) threadedly connected to the top of the oil reservoir (14), an oil-absorbing cotton (17) fixedly connected inside the oil reservoir (14), and a hook-and-hold assembly provided at the end of the wire rope (5).

5. The wear-resistant heavy-duty lifting sling according to claim 4, characterized in that: The hook assembly includes a ring (18) fixedly sleeved on the outer wall of the wire rope (5), and a hook (19) is rotatably connected to the inner wall of the ring (18).

6. The wear-resistant heavy-duty lifting sling according to claim 5, characterized in that: The side wall of the hook (19) is rotatably connected to a pivot (20), and the outer wall of the pivot (20) is fixedly connected to a stop bar.

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