A halyard sleeve removal tool
By designing a tool for removing and installing cable gripper bushings with a sliding hammer drive assembly and an adaptive claw mechanism, the problems of damage to cable grippers and poor adaptability of traditional tools are solved, enabling rapid and non-destructive replacement of bushings and easy operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TAISHAN CABLEWAY IND DEVELOPMENT CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional cable grippers are prone to damage to the bushing and gripper body during bushing replacement. They also have poor tool compatibility, making it difficult to disassemble double-headed or blind-hole bushings and inconvenient to operate.
A tool for removing and installing cable bushings, comprising a sliding hammer drive assembly, an adaptive claw mechanism, and a support positioning device, was designed. It utilizes a combination of an inertial hammer and a spring to generate axial tension, which, together with a three-jaw tractor, achieves stable clamping and motion guidance, supporting the rapid removal and installation of various bushing models.
It enables quick and non-destructive replacement of bushings, reduces maintenance costs, and improves the stability and portability of tools, making it easy for non-professionals to operate.
Smart Images

Figure CN224373949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cableway equipment maintenance technology, specifically a tool for disassembling and assembling cable grip bushings. Background Technology
[0002] The cable gripper bushing bears the dynamic load of the wire rope for a long time and is prone to failure due to friction and wear. Therefore, it needs to be replaced and maintained regularly.
[0003] Traditional maintenance requires complete disassembly of the rigging and replacement of the bushing using a press or hammering method, which has the following drawbacks:
[0004] 1. External mechanical forces can easily damage the bushing and the cable gripper body;
[0005] 2. The tool has poor compatibility and is difficult to adapt to the structural differences of different bushing models.
[0006] 3. Traditional hydraulic tools make disassembly difficult when removing double-ended bushings or blind hole bushings.
[0007] While existing puller tools can disassemble some internal components, they are inconvenient to use due to the compact space and multi-directional force characteristics of the cable gripper. Further optimization of the tool's stability and portability is needed. Therefore, I propose a cable gripper bushing disassembly and assembly tool. Utility Model Content
[0008] To address the shortcomings of existing technologies, this utility model provides a tool for disassembling and assembling cable clamp bushings, which solves the problems mentioned in the background section.
[0009] To achieve the above objectives, this utility model provides the following technical solution: a tool for disassembling and assembling a cable clamp bushing, comprising a sliding hammer drive assembly, an adaptive claw mechanism, and a support positioning device.
[0010] The slide hammer drive assembly consists of a guide rod, an inertial hammer, a spring, and an impact ball;
[0011] The support and positioning device includes a mounting frame and a positioning rod;
[0012] The adaptive puller mechanism consists of a fine-tuning screw, a mounting base, a tapered sleeve, and a three-jaw puller.
[0013] Preferably, an inertial hammer is slidably sleeved on the guide rod, a spring is sleeved on the surface of the guide rod below the inertial hammer, and the inner side of the bottom end of the spring is connected to the outer side of the guide rod. An impact ball is provided on the surface of the guide rod above the inertial hammer.
[0014] Preferably, one end of the fine-tuning screw is fixedly connected to a rotating rod, the rotating rod is threaded to the end of the guide rod, one end of the fine-tuning screw passes through the mounting bracket and is threaded to a mounting seat, a three-jaw pull head is mounted on the mounting seat via a pin, and a tapered sleeve is provided at one end of the fine-tuning screw and inside the three three-jaw pull heads.
[0015] Preferably, the positioning rod can be detachably installed onto the mounting bracket.
[0016] Preferably, the guide rod has a handle at the top.
[0017] Preferably, the tapered sleeve is made of alloy steel and has anti-slip serrations on its surface.
[0018] This utility model provides a tool for disassembling and assembling a cable clamp bushing, which has the following advantages:
[0019] This tool for removing and installing sling grippers utilizes a sliding hammer drive assembly, an adaptive claw mechanism, and a support positioning device. The hammer impact force is converted into axial tension / compression via a guide rod. Combined with the radial expansion of the three-jaw tractor, it achieves stable clamping and motion guidance of the bushing, enabling rapid in-situ bushing replacement. The modular design allows for disassembly and replacement, reducing maintenance costs and making it easy to carry. Furthermore, in-situ operation eliminates the need to disassemble the sling gripper. The conical sleeve and adaptive claw design prevent bushing damage, and the sliding hammer drive reduces labor intensity. Even non-professionals can complete the operation after simple training. Attached Figure Description
[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the front structure of this utility model;
[0022] Figure 3 This is a structural diagram of the back of the present invention.
[0023] In the diagram: 1. Guide rod; 2. Inertia hammer; 3. Spring; 4. Rotating rod; 5. Mounting bracket; 6. Three-jaw pull head; 7. Conical sleeve; 8. Mounting base; 9. Positioning rod; 10. Impact ball; 11. Handle; 12. Fine-tuning screw. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1: Refer to Figures 1-3This utility model provides a tool for disassembling and assembling a cable clamp bushing, including a sliding hammer drive assembly, an adaptive claw mechanism, and a support positioning device.
[0026] The sliding hammer drive assembly consists of a guide rod 1, an inertial hammer 2, a spring 3, and an impact ball 10. The inertial hammer 2 is slidably sleeved on the guide rod 1. The spring 3 is sleeved on the surface of the guide rod 1 and below the inertial hammer 2. The inner side of the bottom end of the spring 3 is connected to the outer side of the guide rod 1. The impact ball 10 is provided on the surface of the guide rod 1 and above the inertial hammer 2.
[0027] The adaptive puller mechanism consists of a fine-tuning screw 12, a mounting base 8, a conical sleeve 7, and a three-jaw puller 6. One end of the fine-tuning screw 12 is fixedly connected to a rotating rod 4, which is threaded to the end of the guide rod 1. One end of the fine-tuning screw 12 passes through the mounting bracket 5 and is threaded to the mounting base 8. The three-jaw puller 6 is mounted on the mounting base 8 via a pin. A conical sleeve 7 is provided at one end of the fine-tuning screw 12 and inside the three three-jaw pullers 6.
[0028] In use, the spring 3 is compressed by sliding the inertia hammer 2. After the spring 3 is compressed, the inertia hammer 2 is released. Since the external force on the inertia hammer 2 disappears, the spring 3 will quickly rebound and push the inertia hammer 2 to slide quickly on the guide rod 1 and then contact the impact ball 10 to generate an impact, which is converted into axial tension / compression. With the radial expansion of the three-jaw pull head 6, the bushing is stably clamped and the movement is guided, thereby realizing the assembly and disassembly of the cable clamp bushing.
[0029] The tapered sleeve 7 and the fine-tuning screw 12 can be detachably connected via screws. Multiple sizes of replaceable tapered sleeves 7 are available, supporting various models with bushing inner diameters from 15mm to 80mm, improving versatility by 60%. Select the appropriate tapered sleeve 7 according to the bushing inner diameter. The three-jaw pull head 6 and the mounting base 8 are connected via a pin.
[0030] The support and positioning device includes a mounting frame 5 and a positioning rod 9, which can be detachably installed onto the mounting frame 5.
[0031] A handle 11 is provided at the top of the guide rod 1.
[0032] The tapered sleeve 7 is made of alloy steel and has anti-slip serrations on its surface to enhance clamping stability.
[0033] In summary, when using this tool for removing and installing the cable clamp bushing, the three-jaw pull head 6 is inserted into the inner hole of the old bushing. Then, the rotating rod 4 is rotated to make the fine-tuning screw 12 rotate. At this time, the outer side of the three-jaw pull head 6 contacts the inner hole of the old bushing, generating resistance. Therefore, the mounting base 8 will not easily rotate. If the mounting base 8 rotates with the fine-tuning screw 12 during operation, the mounting base 8 can be manually held to make the fine-tuning screw 12 rotate within the mounting base 8. At this time, the conical sleeve 7 will move, thereby squeezing the three-jaw pull head 6 to expand outward, making the three-jaw pull head 6 rotate. The head 6 hooks onto the old bushing for fixation. At this time, the positioning rod 9 abuts against the cable gripper. Then, the sliding inertia hammer 2 compresses the spring 3. After the spring 3 is compressed, the inertia hammer 2 is released. Since the external force on the inertia hammer 2 disappears, the spring 3 will quickly rebound, pushing the inertia hammer 2 to slide quickly on the guide rod 1 and then contact the impact ball 10, causing an impact and generating a pulling force. At this time, the guide rod 1 will stretch the rotating rod 4, the fine-tuning screw 12, and the three-jaw pull head 6 to move, pulling the cable gripper bushing out of the cable gripper.
[0034] During installation, reverse the operation, place the new bushing on one side of the cable gripper and the tool on the other side, insert the three-jaw jack 6 through the bushing mounting hole into the inner hole of the new bushing, repeat the above operation, and use the impact force of the spring 3 to press the new bushing into the preset position of the cable gripper. This method is suitable for the quick and non-destructive disassembly and installation of bushings that need to be replaced due to wear in cableway systems.
[0035] During use, regularly check the wear of the pin and spring 3 to ensure impact transmission efficiency; replace the tapered sleeve 7 in time when the wear exceeds 0.5mm.
[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tool for disassembling and assembling a cable clamp bushing, characterized in that: Includes a slide weight drive assembly, an adaptive puller mechanism, and a support positioning device. The sliding hammer drive assembly consists of a guide rod (1), an inertial hammer (2), a spring (3), and an impact ball (10); The support and positioning device includes a mounting bracket (5) and a positioning rod (9); The adaptive puller mechanism consists of a fine-tuning screw (12), a mounting base (8), a conical sleeve (7), and a three-jaw puller (6).
2. The tool for disassembling and assembling a cable clamp bushing according to claim 1, characterized in that: An inertial hammer (2) is slidably sleeved on the guide rod (1). A spring (3) is sleeved on the surface of the guide rod (1) below the inertial hammer (2), and the inner side of the bottom end of the spring (3) is connected to the outer side of the guide rod (1). An impact ball (10) is provided on the surface of the guide rod (1) above the inertial hammer (2).
3. The tool for disassembling and assembling a cable clamp bushing according to claim 1, characterized in that: The fine-tuning screw (12) is fixedly connected to a rotating rod (4) at one end. The rotating rod (4) is threaded to the end of the guide rod (1). One end of the fine-tuning screw (12) passes through the mounting bracket (5) and is threaded to a mounting seat (8). A three-jaw pull head (6) is installed on the mounting seat (8) through a pin. A conical sleeve (7) is provided at one end of the fine-tuning screw (12) and inside the three three-jaw pull heads (6).
4. The tool for disassembling and assembling a cable clamp bushing according to claim 1, characterized in that: The positioning rod (9) can be detachably installed onto the mounting bracket (5).
5. The tool for disassembling and assembling a cable clamp bushing according to claim 1, characterized in that: The top of the guide rod (1) is provided with a handle (11).
6. The tool for disassembling and assembling a cable clamp bushing according to claim 1, characterized in that: The tapered sleeve (7) is made of alloy steel and has anti-slip serrations on its surface.