A dismounting tool for a lower action draw gear

Abstract

The utility model relates to a kind of lower action type car hook dismounting tool, the lower action type car hook dismounting tool, including mobile lifting vehicle, the mobile lifting vehicle includes base, mobile wheel is equipped in the base, lifting platform is set up on the base by driving element, the top of the lifting platform is equipped with slide rail, slide base is equipped on the slide rail, screw nut seat and load roller for supporting car hook are respectively set up on the lifting platform of the both ends of slide rail, the screw nut seat is connected with lead screw, one end of the lead screw is fixed with slide base, the other end is connected operating part, the top of the slide base is connected with the hook tongue pin hole plug-in column matched with car hook, the one end of mobile lifting vehicle close to screw nut seat is equipped with push-pull handrail. The lower action type car hook dismounting tool, can safely, efficiently, labor-saving dismount lower action type car hook.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and in particular to a downward-acting coupler assembly and disassembly tool. Background Technology

[0002] During the maintenance of large road maintenance machinery, coupler problems often necessitate their replacement. Couplers include top-pull and bottom-acting types. Top-pull couplers have their lifting chains located at the top, allowing for assembly and disassembly using an overhead crane. Bottom-acting couplers, however, have always been more difficult to handle due to the lack of suitable lifting positions. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a tooling for disassembling and assembling a bottom-acting coupler, which can safely, efficiently, and labor-savingly disassemble and assemble bottom-acting couplers.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A bottom-operated coupler assembly / disassembly fixture includes a mobile lifting vehicle. The mobile lifting vehicle includes a base with casters underneath. A lifting platform is mounted on the base via a drive mechanism. A slide rail is mounted on the top of the lifting platform, and a slide block is mounted on the slide rail. A screw nut seat and a load-bearing roller for supporting the coupler are respectively mounted on the lifting platform at both ends of the slide rail. A screw is connected to the screw nut seat, with one end of the screw fixed to the slide block and the other end connected to an operating component. A hook tongue pin hole insert that mates with the coupler is connected to the top of the slide block. A push-pull handle is provided at the end of the mobile lifting vehicle near the screw nut seat.

[0005] Preferably, the mobile lifting vehicle is a manual hydraulic trolley.

[0006] Preferably, the movable wheel includes a front wheel and a rear wheel, the front wheel being a directional wheel and the rear wheel being a brake wheel.

[0007] Preferably, the operating component is a handwheel.

[0008] The advantages of this utility model, which adopts the above-mentioned technical solution, are as follows: This bottom-acting coupler assembly and disassembly fixture enables safe, efficient, and labor-saving assembly and disassembly of bottom-acting couplers. Specifically, the lifting platform allows the coupler tongue pin hole insertion post to be positioned and engaged with the coupler; the load-bearing rollers can support most of the coupler's weight, allowing the coupler to be dragged and installed quickly and effortlessly as the coupler tongue pin hole insertion post moves; and the sliding block and slide rail, driven by the lead screw, allow the coupler to move precisely without deviation, making assembly and disassembly safer and smoother. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of the structure in conjunction with the coupler.

[0010] In the diagram, 1. base, 2. caster wheel, 3. drive unit, 4. lifting platform, 5. slide rail, 6. slide block, 7. lead screw nut seat, 8. load-bearing roller, 9. lead screw, 10. operating component, 11. hook tongue pin hole insert, 12. push-pull handle, 13. car hook. Detailed Implementation

[0011] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0012] like Figure 1-2 As shown in this embodiment, the lower-action coupler assembly / disassembly fixture includes a mobile lifting vehicle. The mobile lifting vehicle includes a base 1, with casters 2 on the base 1. A lifting platform 4 is mounted on the base 1 via a drive unit 3. A slide rail 5 is mounted on the top of the lifting platform 4, and a slide block 6 is mounted on the slide rail 5. A screw nut seat 7 and a load-bearing roller 8 for supporting the coupler 13 are respectively mounted on the lifting platform 4 at both ends of the slide rail 5. A screw 9 is connected to the screw nut seat 7. One end of the screw 9 is fixed to the slide block 6, and the other end is connected to an operating component 10. A hook tongue pin hole insert 11 that mates with the coupler is connected to the top of the slide block 6. During use, it must be ensured that the hook tongue pin hole insert 11 mates with the hook tongue pin hole of the coupler after the load-bearing roller is connected to the coupler. A push-pull handle 12 is provided at one end of the mobile lifting vehicle near the screw nut seat 7 to facilitate the movement of the mobile lifting vehicle.

[0013] In one specific embodiment, the mobile lifting vehicle adopts a manual hydraulic trolley, that is, the lifting platform is raised and lowered by manually operating the drive component (hydraulic cylinder), which makes manual operation more convenient and flexible.

[0014] In one specific embodiment, the moving wheels include front wheels and rear wheels, with the front wheels being directional wheels and the rear wheels being brake wheels. Controlling the rear wheels makes it more convenient to move the lifting vehicle stably.

[0015] In one specific embodiment, the operating component is a handwheel.

[0016] The steps for disassembling the coupler using the tooling described in this application are as follows: First, push the mobile lifting platform directly under the coupler 13, aligning the hook tongue pin hole insert with the hook tongue pin hole of the coupler; then operate the lifting platform to rise, so that the load-bearing roller supports the coupler body, ensuring that the load-bearing roller does not contact the coupler tail frame. In this way, most of the weight of the coupler will be supported on the load-bearing roller, making it easier for the coupler to be pulled out of the coupler tail frame; at the same time, the hook tongue pin hole insert will be inserted into the coupler tongue pin hole for positioning.

[0017] The second step involves rotating the lead screw by operating the components, which allows the hook tongue pin hole inserted with it to drag the coupler until the entire coupler is moved out of the hook tail frame. Finally, the lifting vehicle is moved by pushing and pulling the handrail.

[0018] The steps for installing the coupler using the tooling of this application are as follows: Installing the coupler is simply the reverse of the disassembly steps. First, place the coupler on the trolley, move it next to the coupler tail frame, operate the lifting platform to raise it, and then operate the screw in the opposite direction to move the coupler into the coupler tail frame. This completes the installation.

[0019] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0020] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A bottom-operated coupler assembly / disassembly fixture, characterized in that, The device includes a mobile lifting vehicle, which has a base with casters underneath. A lifting platform is mounted on the base via a drive mechanism. The top of the lifting platform has a slide rail with a slide block on it. On the lifting platform at both ends of the slide rail, there are screw nut seats and load-bearing rollers for supporting the hook, respectively. A screw is connected to the screw nut seat, with one end of the screw fixed to the slide block and the other end connected to an operating component. The top of the slide block is connected to a hook tongue pin hole insert that mates with the hook. A push-pull handle is provided at the end of the mobile lifting vehicle near the screw nut seat.

2. The lower-action coupler assembly / disassembly fixture according to claim 1, characterized in that, The mobile lifting vehicle is a manual hydraulic trolley.

3. The lower-action coupler assembly / disassembly fixture according to claim 1, characterized in that, The movable wheel includes a front wheel and a rear wheel, the front wheel being a directional wheel and the rear wheel being a brake wheel.

4. The lower-action coupler assembly / disassembly fixture according to claim 1, characterized in that, The operating component is a handwheel.

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