High-voltage cable for locomotive

Abstract

The utility model belongs to the field of locomotives, particularly relates to a high-voltage cable for locomotives, and aims to solve the problems that an existing cable is prone to rotating during long-time bumping and vibration, abrasion is generated between the cable and a pipe buckle for fixing the cable, and the interior of the cable is prone to being affected due to lack of protection when the cable is impacted. Comprising a cable body, the outer layer of the cable body is a protective sleeve, a supporting part is integrally formed at the bottom of the protective sleeve, the bottom of the supporting part is horizontal, and a buffer layer is integrally formed at the top of the protective sleeve. And meanwhile, through cooperative use of the buffer layer and the filling layer, when the cable body is impacted, a good buffer effect can be achieved, the bottom of the cable body can be tightly attached to the mounting surface through the supporting part, the cable body is prevented from rotating after being used for a long time, and abrasion is reduced.

Description

Technical Field

[0001] This utility model relates to the field of locomotive technology, and in particular to a high-voltage cable for locomotives. Background Technology

[0002] A locomotive is a self-propelled vehicle used to haul or push railway vehicles; it is commonly known as a train engine. It does not carry a commercial load but provides power by consuming fuel. Locomotives have relatively low energy consumption, making them one of the least energy-intensive land transport vehicles. With the development of locomotives, the number of cables used on them has also increased.

[0003] The cables used on locomotives are usually circular and fixed to the locomotive. During long-term bumps and vibrations, the cables are prone to rotation, which can cause wear between the cables and the cable clamps. At the same time, they lack protection when subjected to impacts, which can easily affect the internal structure of the cables. Therefore, a high-voltage cable for locomotives is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the cable being prone to rotation under long-term bumps and vibrations, which leads to wear between the cable and the cable clamp, and the lack of protection when subjected to impact, which can easily affect the internal structure of the cable. Therefore, a high-voltage cable for locomotives is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-voltage cable for locomotives includes a cable body, the outer layer of which is a protective sleeve, a support portion integrally formed at the bottom of the protective sleeve, the bottom of which is horizontal, and a buffer layer integrally formed at the top of the protective sleeve, the buffer layer having a cavity inside which is filled with a filling layer.

[0007] Multiple positioning mechanisms are provided, all of which are located around the circumference of the cable body for positioning when fixing the cable body.

[0008] As a further embodiment of this utility model, the positioning mechanism includes an n-shaped limiting frame, which is fixed to the outer wall of the protective sleeve. The two sides of the limiting frame are horizontal with the sides of the support part, and both ends of the limiting frame are integrally formed with a base plate.

[0009] As a further improvement of this utility model, the outer wall of the limiting frame is provided with a slot.

[0010] As a further improvement of this utility model, the surface of the base plate is provided with through fixing holes.

[0011] As a further embodiment of this utility model, the cable body includes a conductor, and the outer wall of the conductor is provided with a conductor shielding layer, an insulation layer, an insulation shielding layer, a metal shielding layer and a flame-retardant isolation layer from the inside to the outside, and the protective sleeve is disposed on the outer wall of the flame-retardant isolation layer.

[0012] As a further embodiment of this utility model, the conductor shielding layer and the insulating shielding layer are both semi-conductive materials, the insulating layer is cross-linked polyethylene, the metal shielding layer is copper strip, the flame-retardant isolation layer is flame-retardant glass cloth strip, and the protective sleeve is polyvinyl chloride.

[0013] As a further embodiment of this invention, the semiconductive material is composed of polyethylene and carbon black.

[0014] As a further improvement of this utility model, the limiting frame and the protective sleeve are made of the same material.

[0015] As a further improvement of this invention, the filling layer is flame-retardant foam.

[0016] In this application, when laying the cable body, the support part faces the fixed surface, such as the ground or the inner wall of the carriage. Then, the U-shaped pipe clamp is snapped into the slot and fixed with bolts or self-tapping screws. After fixing, the pipe clamp is limited by the limiting bracket to maintain the stability of the cable body during use. At the same time, the limiting bracket supports the pipe clamp to prevent wear on the cable body, improve service life and safety. Meanwhile, the horizontal support part at the bottom of the protective sleeve can support the cable body to prevent the cable body from rotating after long-term use and reduce wear. The buffer layer and the filling layer work together to have a good buffering effect and reduce the impact on the cable body.

[0017] Beneficial effects: In this utility model, the high-voltage cable for locomotives, through the setting of the limiting frame, allows the limiting frame to cooperate with the pipe clamp when fixing the cable body, thereby supporting the pipe clamp, avoiding wear on the cable body, and improving service life and safety of use.

[0018] In this utility model, the high-voltage cable for locomotives, through the combined use of a buffer layer and a filling layer, enables the cable body to have a good buffering effect when subjected to impact, thereby reducing the impact on the cable body.

[0019] In this utility model, the high-voltage cable for locomotives has a support part at the bottom of the protective sleeve, which allows the bottom of the cable body to be tightly attached to the mounting surface, preventing the cable body from rotating during long-term use and reducing wear. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of a high-voltage cable for locomotives proposed in this utility model from a first perspective.

[0021] Figure 2 This is a two-dimensional structural diagram of a high-voltage cable for locomotives proposed in this utility model, from a second perspective.

[0022] In the diagram: 1. Conductor; 2. Conductor shielding layer; 3. Insulation layer; 4. Insulation shielding layer; 5. Metal shielding layer; 6. Flame-retardant isolation layer; 7. Protective sleeve; 8. Limiting frame; 9. Slot; 10. Base plate; 11. Fixing hole; 12. Support part; 13. Buffer layer; 14. Filling layer. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1, referring to Figure 1-Figure 2 A high-voltage cable includes: a cable body, an outer protective sleeve 7, a support portion 12 integrally formed at the bottom of the protective sleeve 7, the bottom of the support portion 12 being horizontal, the horizontal arrangement enabling the bottom of the cable body to be tightly attached to the mounting surface, preventing the cable body from rotating during long-term use and reducing wear, and a buffer layer 13 integrally formed at the top of the protective sleeve 7, the buffer layer 13 having a cavity inside, the cavity being filled with a filling layer 14, the buffer layer 13 and the filling layer 14 working together to have a good buffering effect and reduce the impact on the cable body;

[0025] Multiple positioning mechanisms are located around the circumference of the cable body for positioning when fixing the cable body.

[0026] This application can be used in the field of locomotives, or in other fields applicable to this application.

[0027] Example 2, Reference Figure 1-Figure 2 Based on Embodiment 1, an improved high-voltage cable for locomotives is applied to the locomotive field. The positioning mechanism includes an n-shaped limiting frame 8, which is fixed to the outer wall of the protective sleeve 7. The two sides of the limiting frame 8 are horizontal with the sides of the support part 12. Both ends of the limiting frame 8 are integrally formed with a base plate 10. The limiting frame 8 limits the tube clamp to maintain the stability of the cable body during use. At the same time, the limiting frame 8 supports the tube clamp to prevent wear of the cable body and improve service life and safety of use.

[0028] In this utility model, the outer wall of the limiting frame 8 is provided with a slot 9, which facilitates the restriction of the tube buckle.

[0029] In particular, the surface of the base plate 10 is provided with through fixing holes 11, which facilitate the fixing of the tube clips.

[0030] It should be noted that the cable body includes conductor 1. From the inside to the outside, the outer wall of conductor 1 is provided with conductor shielding layer 2, insulation layer 3, insulation shielding layer 4, metal shielding layer 5, and flame-retardant isolation layer 6. Protective sleeve 7 is provided on the outer wall of flame-retardant isolation layer 6. Conductor shielding layer 2 and insulation shielding layer 4 are both semi-conductive materials, insulation layer 3 is cross-linked polyethylene, metal shielding layer 5 is copper tape, flame-retardant isolation layer 6 is flame-retardant glass cloth tape, which can play a good flame-retardant role. Protective sleeve 7 is polyvinyl chloride, which has good wear resistance, a protective effect, and is also fireproof.

[0031] In this invention, the semiconducting material is composed of polyethylene and carbon black.

[0032] In particular, the limiting bracket 8 and the protective sleeve 7 are made of the same material.

[0033] It should be noted that the filler layer 14 is flame-retardant foam. Flame-retardant foam is lightweight, easy to use, and can also provide a cushioning effect.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-voltage cable for locomotives, comprising a cable body, wherein the outer layer of the cable body is a protective sheath (7), characterized in that, The bottom of the protective sleeve (7) is integrally formed with a support part (12), the bottom of the support part (12) is horizontal, and the top of the protective sleeve (7) is integrally formed with a buffer layer (13), the buffer layer (13) has a cavity inside, and the cavity is filled with a filling layer (14). Multiple positioning mechanisms are provided, all of which are located around the circumference of the cable body for positioning when fixing the cable body.

2. The high-voltage cable for locomotives according to claim 1, characterized in that, The positioning mechanism includes an n-shaped limiting frame (8), which is fixed to the outer wall of the protective sleeve (7). The two sides of the limiting frame (8) are horizontal to the side of the support part (12), and both ends of the limiting frame (8) are integrally formed with a base plate (10).

3. A high-voltage cable for locomotives according to claim 2, characterized in that, The outer wall of the limiting frame (8) is provided with a slot (9).

4. A high-voltage cable for locomotives according to claim 2, characterized in that, The surface of the base plate (10) is provided with through fixing holes (11).

5. A high-voltage cable for locomotives according to claim 1, characterized in that, The cable body includes a conductor (1), and the outer wall of the conductor (1) is provided with a conductor shielding layer (2), an insulation layer (3), an insulation shielding layer (4), a metal shielding layer (5) and a flame-retardant isolation layer (6) from the inside to the outside. The protective sleeve (7) is provided on the outer wall of the flame-retardant isolation layer (6).

6. A high-voltage cable for locomotives according to claim 5, characterized in that, The conductor shielding layer (2) and the insulating shielding layer (4) are both semi-conductive materials, the insulating layer (3) is cross-linked polyethylene, the metal shielding layer (5) is copper strip, the flame-retardant isolation layer (6) is flame-retardant glass cloth strip, and the protective sleeve (7) is polyvinyl chloride.

7. A high-voltage cable for locomotives according to claim 6, characterized in that, The semiconductive material is composed of polyethylene and carbon black.

8. A high-voltage cable for locomotives according to claim 2, characterized in that, The limiting frame (8) and the protective sleeve (7) are made of the same material.

9. A high-voltage cable for locomotives according to claim 5, characterized in that, The filler layer (14) is flame-retardant foam.

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