Steel wire rope sling tensioning and dragging device
By designing a wire rope sling tensioner and puller, and utilizing a J-groove and L-shaped clamping rod structure, the problems of low efficiency and safety hazards associated with traditional manual pulling are solved. This achieves efficient and safe wire rope core processing while ensuring uniform distribution of lubricating grease.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANYANG SANLONG HENGLI MASCH MFG CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional manual dragging of steel wire rope slings is inefficient, physically demanding, affects processing efficiency, and poses a risk of lumbar muscle strain. Furthermore, uneven dragging by hand leads to uneven distribution of lubricating grease in the rope core, causing potential internal corrosion.
Design a wire rope sling tensioning and dragging device, which adopts a J-shaped groove and L-shaped clamping rod structure. The clamping plate is driven by the traction device to clamp the wire rope, and the lever principle is used to achieve stable dragging, avoiding manual operation.
It improves the processing efficiency of wire rope slings, reduces physical exertion, lowers the risk of lumbar muscle strain, and ensures the uniform distribution of lubricating grease in the rope core, thereby enhancing product quality and safety.
Smart Images

Figure CN224260834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a wire rope sling tensioning and dragging device, and pertains to the field of wire rope sling processing technology. Background Technology
[0002] In the industrial production of wire rope slings, precisely dragging the wire rope to the preset process length is a core pretreatment step. Traditional methods often involve manual labor on the workshop floor for repeated pulling and positioning, severely limiting processing efficiency. Due to the high physical exertion and long dragging times per session, when multiple wire rope slings require pretreatment, employees need to recover their strength, significantly impacting processing efficiency. Furthermore, this high-intensity work increases the risk of lower back strain for operators. In addition, the intermittent force applied by manual dragging disrupts the uniform distribution of lubricating grease in the rope core, creating a potential for internal corrosion during service life. Utility Model Content
[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a wire rope sling tensioning and dragging device, the specific technical solution of which is as follows:
[0004] A wire rope sling tensioning and dragging device includes a J-shaped groove, one end of which is rotatably connected to an L-shaped clamping rod. One end of the L-shaped clamping rod is used to connect to a traction device via a wire rope, and the other end is rotatably connected to a clamping plate that moves within the J-shaped groove.
[0005] Preferably, the L-shaped clamping rod includes an integrally formed long rod and a short rod, and the included angle between the long rod and the short rod is an acute angle.
[0006] Furthermore, the corner of the L-shaped clamping rod is rotatably connected to the groove wall of the J-shaped groove.
[0007] Furthermore, the free end of the long rod is provided with a fixing ring for connecting to the wire rope of the traction device.
[0008] Furthermore, the free end of the short rod is rotatably connected to a clamping plate.
[0009] Furthermore, the top of the clamping plate is symmetrically provided with ear plates, and the end of the short rod is located between the two ear plates and is rotatably connected to them.
[0010] This utility model has a simple structure. The L-shaped clamping rod is pulled by the traction device, which drives the clamping plate to move towards the bottom of the J-shaped groove and clamps the steel wire rope to be dragged. The traction device continues to work, dragging the J-shaped groove to move, thereby dragging the steel wire rope and completing the dragging operation of the steel wire rope. Attached Figure Description
[0011] Figure 1 This is a structural schematic diagram of a wire rope sling tensioning and dragging device according to this utility model.
[0012] Figure 2 This is a side view of a wire rope sling tensioning and dragging device according to this utility model.
[0013] In the diagram: 1. J-shaped groove; 2. L-shaped clamping rod; 201. Long rod; 202. Short rod; 3. Clamping plate; 4. Fixing ring; 5. Ear plate; 6. Traction device. Detailed Implementation
[0014] 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.
[0015] like Figure 1-2 As shown, a wire rope sling tensioning and dragging device includes a J-shaped groove 1, one end of which is rotatably connected to an L-shaped clamping rod 2. One end of the L-shaped clamping rod 2 is used to connect to a traction device 6 via a wire rope, and the other end is rotatably connected to a clamping plate 3 that moves within the J-shaped groove 1.
[0016] The L-shaped clamping rod 2 includes an integrally formed long rod 201 and a short rod 202, with an acute angle between the long rod 201 and the short rod 202. This invention utilizes the lever principle; the traction force of the traction device 6 connected to the end of the long rod 201 does not need to be excessive to rotate the end of the short rod 202 to the connected clamping plate 3, firmly pressing it onto the wire rope to be dragged. The traction device 6 can be a winch.
[0017] The corner of the L-shaped clamping rod 2 is rotatably connected to the wall of the J-shaped groove 1. The free end of the long rod 201 is provided with a fixing ring 4 for connecting to the wire rope of the traction device 6. The free end of the short rod 202 is rotatably connected to the clamping plate 3. The top of the clamping plate 3 is symmetrically provided with ear plates 5. The end of the short rod 202 is located between the two ear plates 5 and is rotatably connected to them, so that the clamping plate 3 can always be in a horizontal state and will not tilt, which would prevent the wire rope from being clamped securely and create a safety hazard.
[0018] The working principle of this utility model is as follows:
[0019] When dragging a steel wire rope sling, one end of the steel wire rope is anchored, and the other end is placed in the J-groove 1. The traction device 6 is started, driving the L-shaped clamping rod 2 to rotate. The clamping plate 3 gradually presses down into the J-groove 1 until the steel wire rope to be dragged is clamped in the J-groove 1. Then the traction device 6 continues to work, dragging the entire tensioning dragger until the steel wire rope to be dragged reaches the required process length. At this point, the traction device 6 stops, completing one dragging cycle. When the traction device 6 pulls the long rod 201 of the L-shaped clamping rod 2, the force is transmitted to the corner of the L-shaped clamping rod 2, generating an upward pulling force on the J-groove 1. At the same time, the clamping plate 3 continuously applies pressure to the inside of the J-groove 1, generating a downward pressing force on the J-groove 1. The interaction of these two forces allows the tensioning dragger of this invention to firmly clamp the steel wire rope while also moving, achieving the purpose of dragging the steel wire rope.
[0020] Although the present invention 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 the present invention should be included within the protection scope of the present invention.
Claims
1. A wire rope sling tensioning and dragging device, characterized in that, It includes a J-shaped groove, one end of which is rotatably connected to an L-shaped clamping rod. One end of the L-shaped clamping rod is used to connect to a traction device via a wire rope, and the other end is rotatably connected to a clamping plate that moves within the J-shaped groove.
2. The wire rope sling tensioning and dragging device according to claim 1, characterized in that, The L-shaped clamping rod includes a long rod and a short rod that are integrally formed, and the included angle between the long rod and the short rod is an acute angle.
3. The wire rope sling tensioning and dragging device according to claim 2, characterized in that, The corner of the L-shaped clamping rod is rotatably connected to the wall of the J-shaped groove.
4. The wire rope sling tensioning and dragging device according to claim 2, characterized in that, The free end of the long rod is provided with a fixing ring for connecting to the wire rope of the traction device.
5. A wire rope sling tensioning and dragging device according to claim 2, characterized in that, The free end of the short rod is rotatably connected to the clamping plate.
6. The wire rope sling tensioning and dragging device according to claim 5, characterized in that, The top of the clamping plate is symmetrically provided with ear plates, and the end of the short rod is located between the two ear plates and is rotatably connected to them.