Tool for installing jumper wire of rail train

Abstract

The invention relates to a tool for rail train jumper wire installation, which comprises a base provided with rollers at the bottom, a bearing frame is arranged at the top of the base, the bearing frame is of a grid type supporting structure as a whole, the middle of the bearing frame is an arc-shaped supporting part, and the arc-shaped supporting part is provided with a clamping groove. The radian of the arc-shaped supporting part is matched with the natural bending radian of the rail train jumper wire, storage platforms are horizontally arranged on the two sides of the arc-shaped supporting part, handles are arranged on the front side and the rear side of each storage platform, and the surface of the arc-shaped supporting part is covered with a buffer layer. The tool effectively realizes the functions of stable placement, convenient movement and effective protection of the jumper wire.

Description

Technical Field

[0001] This invention relates to the field of rail transit equipment manufacturing and maintenance technology, and in particular to a tooling for installing jumper wires on rail trains. Background Technology

[0002] In the manufacturing of railcars, jumper cables between vehicles are core components for transmitting electrical signals and connecting high-voltage power. They typically consist of multi-strand copper core cables and dedicated connectors at both ends, with an overall length of 2m-4m and a weight of 15kg-30kg. Strict requirements are placed on the cable bending radius and interface protection. Currently, due to a lack of dedicated load-bearing and mobility tools, the following prominent problems exist in jumper cable installation: 1. Jumper wires are easily damaged: After disassembly, they are often piled directly on the ground. Oil stains and metal shavings on the ground will accelerate the aging of the insulation layer. People stepping on them or running over them by tools and vehicles can easily cause damage to the cable sheath and copper core. Connectors do not have a dedicated place to be placed, and they are easily damaged by impact, resulting in interface deformation, pin bending and other damage.

[0003] 2. Low work efficiency: Jumper cables require 2-3 people to carry by hand, which is time-consuming and laborious; the disorderly stacking of cables requires reorganization during installation, with an average single operation taking more than 20 minutes.

[0004] 3. Cable fatigue damage: Without a suitable support structure, the jumper cable is prone to excessive bending (exceeding the minimum bending radius requirement). Long-term repeated bending will cause fatigue fracture of the internal copper core, shortening its service life by more than 30%.

[0005] 4. Significant safety hazards: During handling, the jumper wires swing disorderly and are prone to collision with train couplers and brake lines, posing a risk of equipment damage; the jumper wires stacked on the ground can also easily trip workers. Summary of the Invention

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a tooling for installing jumper wires on rail trains.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A tooling for installing a rail transit line includes a base with rollers at the bottom and a support frame at the top of the base. The support frame is a grid-type support structure with an arc-shaped support section in the middle. The arc of the arc-shaped support section matches the natural curvature of the rail transit line. A placement platform is horizontally arranged on both sides of the arc-shaped support section, and handles are provided on the front and rear sides of the placement platform. The surface of the arc-shaped support section is covered with a buffer layer.

[0008] According to some embodiments of the present invention, the buffer layer is polyurethane foam.

[0009] According to some embodiments of the present invention, the thickness of the buffer layer is 5mm-10mm.

[0010] According to some embodiments of the present invention, the base is a rectangular frame welded from several strip rods.

[0011] According to some embodiments of the present invention, a plurality of reinforcing rods are provided inside the rectangular frame.

[0012] According to some embodiments of the present invention, the roller is a universal wheel with braking function.

[0013] According to some embodiments of the present invention, the rollers are disposed at the four corners of the base.

[0014] According to some embodiments of the present invention, the handle is covered with plastic.

[0015] According to some embodiments of the present invention, the storage platform is provided with a plurality of square cutouts.

[0016] According to some embodiments of the present invention, the width of the arc-shaped support portion is greater than or equal to the width of the jumper cable.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This tooling effectively solves the problems of contamination and damage when jumper cables are temporarily placed, the problems of manpower consumption and low efficiency in handling jumper cables, the problems of fatigue damage caused by excessive bending of jumper cables, and the problems of disorderly storage of jumper cable accessories and auxiliary tools. It realizes the functions of secure placement, convenient movement and effective protection of jumper cables.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure from another direction of the present invention. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1-2 A tooling for installing jumper wires for rail trains is mainly used for the placement and movement of jumper wires between rail trains (including EMUs, metro trains, urban rail trains, etc.) during installation, disassembly, and temporary storage. It includes a base 1 with rollers 11 at the bottom. The base 1 is a rectangular frame welded from several strip rods 12. To ensure its strength, several reinforcing rods 13 are installed inside the rectangular frame.

[0025] The base 1 has a supporting frame 2 on its top. The supporting frame 2 has a grid-type support structure, which makes it lighter. Its central part is an arc-shaped support section 21. The curvature of the arc-shaped support section 21 matches the natural curvature of the rail transit cable. The width of the arc-shaped support section 21 is greater than or equal to the width of the main cable of the transit cable. Its main purpose is to fit and support the transit cable, preventing slippage and excessive bending. Furthermore, the surface of the arc-shaped support section 21 is covered with a buffer layer made of polyurethane foam, with a thickness of 5mm-10mm. This buffer layer reduces direct collision between the transit cable and the tooling, minimizing damage.

[0026] In addition, horizontally arranged storage platforms 22 are provided on both sides of the arc-shaped support 21. Handles 23 are provided on the front and rear sides of the storage platforms 22. To reduce the weight of the storage platforms 22, several square cutouts are provided on the storage platforms 22, arranged in a matrix. This design ensures that the overall weight of the tooling does not exceed 20kg, and the maximum load-bearing capacity is not less than 100kg. To facilitate operator comfort when operating the tooling, the handles 23 are covered with plastic.

[0027] The base 1 is equipped with four corner casters with braking function. These casters are heavy-duty casters, with a single caster having a load-bearing capacity of no less than 50kg. Each caster has a built-in spring damping structure with a travel of 1cm-2cm. This design allows for flexible movement and fixed-point fixation of the tooling, while also adapting to uneven ground in the production area. Of course, depending on actual needs, the number of casters 11 can be set to 6 or 8.

[0028] This tooling effectively solves the problems of contamination and damage when jumper cables are temporarily placed, the problems of manpower consumption and low efficiency in handling jumper cables, the problems of fatigue damage caused by excessive bending of jumper cables, and the problems of disorderly storage of jumper cable accessories and auxiliary tools. It realizes the functions of secure placement, convenient movement and effective protection of jumper cables.

[0029] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A tooling for installing jumper wires on railcars, characterized in that: The base (1) includes a base with rollers (11) at the bottom, and a support frame (2) is provided on the top of the base (1). The support frame (2) is a grid-type support structure, with an arc-shaped support part (21) in the middle. The arc of the arc-shaped support part (21) matches the natural curvature of the rail train crossover line. A storage platform (22) is provided horizontally on both sides of the arc-shaped support part (21). Handles (23) are provided on the front and rear sides of the storage platform (22). The surface of the arc-shaped support part (21) is covered with a buffer layer.

2. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The buffer layer is polyurethane foam.

3. The tooling for installing jumper wires on railcars according to claim 2, characterized in that: The thickness of the buffer layer is 5mm-10mm.

4. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The base (1) is a rectangular frame welded from several strip rods (12).

5. The tooling for installing jumper wires on railcars according to claim 4, characterized in that: Several reinforcing rods (13) are installed inside the rectangular frame.

6. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The roller (11) is a universal wheel with braking function.

7. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The rollers (11) are located at the four corners of the base (1).

8. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The handle (23) is covered with plastic.

9. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The storage platform (22) has several square cutouts (221).

10. The tooling for installing jumper wires on railcars according to claim 1, characterized in that: The width of the arc-shaped support (21) is greater than or equal to the width of the jumper cable.

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