Electric passenger car door roller dismounting tool

Abstract

The utility model provides an electric passenger car door roller disassembling tool which comprises a roller clamping device, a pull rod, an anti-pinch manual device, a sliding weight, a nut and a limiting tool, threads are arranged at the two ends of the pull rod, the pull rod at one end penetrates through the roller clamping device and is fixed through the nut, the anti-pinch manual device and the sliding weight penetrate through the pull rod, and the limiting tool is arranged on the anti-pinch manual device. And a limiting tool is arranged at the end part of the pull rod at the other end. By the adoption of the structural design of the roller clamping device, the vehicle door roller can be clamped through the roller clamping device, the sliding hammer moves to the limiting tool on the pull rod to generate impact force, the roller clamping device is driven to move, and therefore the purpose of disassembling the roller is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of the production of electric passenger car doors, in particular to a disassembly tool for the rollers of electric passenger car doors. Background Art

[0002] Generally, when disassembling the rollers of the carrier of a double-leaf plug door of an electric passenger car, a circlip pliers, a two-jaw or three-jaw puller, and a wrench are required. Since the roller mounting seat of the carrier of the double-leaf plug door of an electric passenger car is welded to the carrier, and the height dimension of the journal for mounting the roller is the thickness of the roller and the mounting circlip, the gap between the roller and the carrier is small, resulting in the need to select a non-standard claw-head puller when disassembling the roller; even when using a non-standard claw-head puller to lock the roller, it is easy to slip out. Therefore, when disassembling the rollers of the carrier of the double-leaf plug door of an electric passenger car, two people need to cooperate. One person uses a non-standard claw-head puller to lock the roller, and the other person rotates the pull rod with a wrench, and slowly pulls out the roller on the carrier by relying on the puller; during this process, the two people need to cooperate with each other, not only to prevent the puller from slipping out, but also to ensure that the wrench does not fall off, which poses a safety hazard, and the operation efficiency is low. Summary of the Utility Model

[0003] The utility model provides a disassembly tool for the rollers of electric passenger car doors, and its purpose is to solve the technical problems that when disassembling the rollers of the double-leaf plug door of a subway electric passenger car in the background art, the puller is prone to slip out during clamping, the wrench is prone to fall and hit people, and the operation efficiency is low when disassembling the rollers of the carrier of the double-leaf plug door of an electric passenger car.

[0004] In order to achieve the above purpose, a disassembly tool for the rollers of electric passenger car doors provided by the utility model includes a roller positioner, a pull rod, an anti-pinch tooling, a slide hammer, a nut and a limit tooling. Threads are provided at both ends of the pull rod. One end of the pull rod passes through the roller positioner and is fixed by a nut. The anti-pinch tooling and the slide hammer pass through the pull rod, and a limit tooling is provided at the end of the other end of the pull rod.

[0005] Preferably, the anti-pinch tooling is a spring.

[0006] Preferably, the limit tooling is a limit nut.

[0007] Preferably, the roller positioner is provided with a U-shaped groove.

[0008] Preferably, the roller positioner is circular or square.

[0009] The disassembly tool for the rollers of electric passenger car doors of the utility model has the following beneficial effects:

[0010] With the structural design of the roller clamping device, the door roller can be clamped by the roller clamping device, and then the sliding hammer is moved on the pull rod to the limit tooling to generate an impact force, driving the roller clamping device to move, so as to achieve the purpose of removing the roller. This tooling is small in size, easy to disassemble and assemble. When in use, only one person is needed to safely and quickly remove the roller on the door carrier, effectively eliminating the safety hazards in the operation, reducing the number of operators, and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of a tooling for disassembling the door roller of an electric passenger car of the present invention;

[0012] Figure 2 is Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of the roller clamping device of a tooling for disassembling the door roller of an electric passenger car shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0014] The present invention provides a tooling for disassembling the door roller of an electric passenger car in view of the existing problems.

[0015] In one embodiment, a tooling for disassembling the door roller of an electric passenger car, as Figure 1 and Figure 2 shown, includes a roller clamping device 1, a pull rod 2, an anti-pinch tooling 3, a sliding hammer 4, a nut and a limit tooling 5. Both ends of the pull rod 2 are provided with threads. One end of the pull rod passes through the roller clamping device 1 and is fixed by a nut. The anti-pinch tooling 3 and the sliding hammer 4 pass through the pull rod 2, and a limit tooling 5 is provided at the end of the other end of the pull rod 2.

[0016] In this embodiment, the anti-pinch tooling 3 is a spring. The limit tooling 5 is a limit nut.

[0017] The roller clamping device 1 is provided with a U-shaped groove. The roller clamping device 1 is circular or square.

[0018] In the operation of disassembling the rollers of the double-leaf plug doors of electric multiple units (EMUs), first, quickly assemble a tooling for disassembling the door rollers of the EMUs of the present invention. Use a circlip pliers to remove the roller circlip. Insert the U-shaped groove of the roller positioner 1 through the gap between the roller and the door carrier, so that the U-shaped groove of the roller positioner 1 locks the roller to be disassembled. Install the slide hammer 4 on the pull rod 2, and then repeatedly slide and impact the limit tooling 5 through the slide hammer 4 on the pull rod 2. The generated impact force is transmitted to the roller positioner 1, and the roller positioner 1 transmits the impact force to the roller to be disassembled. Finally, the roller of the door carrier is quickly disengaged from the roller mounting seat, realizing that one person can safely and quickly disassemble the rollers of the double-leaf plug doors of the EMU.

[0019] The tooling for disassembling the door rollers of the EMUs of the present invention has the following beneficial effects:

[0020] With the structural design of the roller positioner, the door roller can be clamped by the roller positioner 1, and then the slide hammer 4 moves on the pull rod 0 to the limit tooling 5 to generate an impact force, driving the roller positioner 1 to move, so as to achieve the purpose of disassembling the roller. This tooling is small in size, convenient for disassembly and assembly. When in use, only one person is required to safely and quickly disassemble the rollers on the door carrier, effectively eliminating potential safety hazards during the operation and reducing the number of operators, thus improving the operation efficiency.

[0021] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An electric passenger car door roller disassembly tooling, characterized in that, It includes a roller retainer, a pull rod, an anti-pinch manual installation, a slide hammer, a nut and a limit tooling. Threads are provided at both ends of the pull rod. One end of the pull rod passes through the roller retainer and is fixed by a nut. The anti-pinch manual installation and the slide hammer pass through the pull rod, and a limit tooling is provided at the end of the other end of the pull rod.

2. The disassembly tooling for the door roller of an electric passenger car according to claim 1, characterized in that, The anti-pinch manual installation is a spring.

3. The dismounting tooling for the door roller of an electric passenger car according to claim 1, characterized in that, The limit tooling is a limit nut.

4. The dismounting tooling for the door roller of an electric passenger car according to claim 1, characterized in that, The roller retainer is provided with a U-shaped groove.

5. A disassembly tool for the door roller of an electric passenger car according to claim 1, characterized in that The roller retainer is circular or square.

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