An oil- and corrosion-resistant locomotive irradiated flexible cable

Abstract

This utility model relates to the field of cable technology and discloses an oil- and corrosion-resistant locomotive irradiated flexible cable, including an outer protective layer, an inner protective mechanism, and an anti-bending mechanism. The inner protective mechanism includes a second sheath, which is externally fixedly connected to the inner wall of the outer protective layer. An oil film coating is fixedly connected to the inside of the second sheath, and a first sheath is fixedly connected to the inside of the oil film coating. Multiple conductors are fixedly connected to the inside of the first sheath. In this utility model, by adding a coating to the conductor surface, the conductor becomes more corrosion-resistant and oil-resistant. When the conductor is bent, the first and second sheaths easily slip, making it easy to bend and more flexible. The high-energy electron irradiation process transforms the molecular structure of the double sheaths from linear to mesh-like, ultimately achieving an overall oil- and corrosion-resistant, more flexible cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to an oil-resistant and corrosion-resistant locomotive irradiation flexible cable. Background Technology

[0002] When using locomotive cables, a type of oil-resistant and corrosion-resistant irradiated flexible cable is often used. This special cable is designed specifically for the locomotive environment. Through irradiation treatment, it acquires excellent oil resistance, corrosion resistance, and flexibility. Using it can provide locomotives with stable and reliable power and signal transmission, effectively resisting the corrosion of oil and chemicals that locomotives frequently come into contact with during operation, reducing failures and maintenance costs, and ensuring the safe and stable operation of locomotives. It is especially suitable for locomotive working environments with high levels of oil and strong corrosion.

[0003] The oil- and corrosion-resistant locomotive irradiation flexible cable enhances its flexibility by stranding multiple fine conductors. Then, oil- and corrosion-resistant polymer materials are selected and extruded to form an oil film coating and a sheath layer, constructing the basic structure. Subsequently, the cable is sent to an electron irradiation device, where high-energy rays induce cross-linking of material molecules, significantly improving its oil resistance, corrosion resistance, and mechanical properties. Finally, it undergoes rigorous quality control through spark withstand voltage testing, oil immersion testing, and corrosion resistance testing to ensure that the finished product can stably complete power and signal transmission tasks in complex environments.

[0004] In existing technologies, some oil-resistant and corrosion-resistant locomotive irradiation flexible cables mostly use ordinary polyvinyl chloride and rubber as insulation and sheathing materials. These materials have poor oil resistance and are prone to swelling and cracking after long-term contact with oil, resulting in a decrease in the sealing of the insulation layer. This not only causes power leakage and signal interference, but also allows corrosive media to penetrate into the cable, accelerating the oxidation and corrosion of the conductor. Therefore, an oil-resistant and corrosion-resistant locomotive irradiation flexible cable is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an oil-resistant and corrosion-resistant locomotive irradiation flexible cable, which aims to improve the problem that some existing oil-resistant and corrosion-resistant locomotive irradiation flexible cable devices are not convenient for better oil and corrosion resistance of locomotive cables.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An oil- and corrosion-resistant locomotive irradiation flexible cable includes an outer protective layer, an inner protective mechanism inside the outer protective layer, and an anti-bending mechanism inside the outer protective layer. The inner protective mechanism includes a second protective layer, the outer side of which is fixedly connected to the inner wall of the outer protective layer, an oil film coating is fixedly connected to the inner side of the second protective layer, a first protective layer is fixedly connected to the inner side of the oil film coating, and a plurality of conductors are fixedly connected to the inner side of the first protective layer. As a further description of the above technical solution: The anti-bending mechanism includes a waterproof layer, the outside of which is fixedly connected to the inside of the outer protective layer, and a bending component is fixedly connected to the outside of the waterproof layer; As a further description of the above technical solution: The bending assembly includes a spiral steel wire, which is externally fixedly connected to the inside of the outer protective layer, and the waterproof layer has an embedded groove on its outside. As a further description of the above technical solution: The inner wall of the waterproof layer is fixedly connected to the outer wall of the second protective layer, and the outer layer is fixedly connected to the inside of the outer protective layer. As a further description of the above technical solution: The spiral steel wire is externally fixedly connected to the outside of the embedded groove, and the spiral steel wire is externally fixedly connected to the outside of the waterproof layer; This utility model has the following beneficial effects: 1. In this utility model, by adding a coating to the conductor surface, the conductor becomes more corrosion-resistant and oil-resistant. An oil film structure is added between the double sheaths, which makes it easy for the first and second sheaths to slide when the cable is bent, making it easier to bend and more flexible. The high-energy electron irradiation process transforms the molecular structure of the double sheaths from linear to mesh, making the molecular structure more stable, oil-resistant, and corrosion-resistant, ultimately achieving the effect of overall oil resistance, corrosion resistance, and greater flexibility of the cable.

[0007] 2. In this utility model, the outer protective layer of the cable resists daily external wear and tear, directly forming the first protective barrier of the cable, avoiding physical damage to the internal conductor caused by external friction and collision. The bending angle of the cable is limited by multiple strands of spiral steel wires. The rigid support of the steel wires and the toughness of the spiral structure are balanced to prevent the internal conductor from breaking due to excessive bending during the bending process, thus ensuring safe use.

[0008] By using a waterproof layer to block external rainwater and sewage from entering, a waterproof seal is built for the cable, preventing moisture from penetrating into the internal conductor and insulation layer. This avoids problems such as decreased insulation performance and conductor corrosion caused by moisture, and is especially suitable for outdoor and underground humid environments. It ensures that the cable can still operate stably in complex environments and reduces the risk of failure. Attached Figure Description

[0009] Figure 1This is a three-dimensional schematic diagram of an oil-resistant and corrosion-resistant locomotive irradiation flexible cable proposed in this utility model; Figure 2 This is a schematic diagram of the outer protective layer of an oil-resistant and corrosion-resistant locomotive irradiation flexible cable proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0010] Legend: 1. Outer protective layer; 2. Inner protective mechanism; 21. Second protective layer; 22. Oil film coating; 23. First protective layer; 24. Conductor; 3. Bending mechanism; 31. Waterproof layer; 32. Bending assembly; 321. Spiral steel wire; 322. Embedded groove. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] An oil- and corrosion-resistant locomotive irradiated flexible cable, with reference to Figures 1 to 3 It includes an outer protective layer 1, which has good wear resistance properties and can resist normal wear during cable use, protecting the inner conductor 24. An inner protective mechanism 2 and an anti-bending mechanism 3 are provided inside the outer protective layer 1. The inner protective structure 2 includes a second sheath 21, which is made of polyurethane material, and has good strength, toughness and corrosion resistance. The second sheath 21 is externally fixedly connected to the inner wall of the outer protective layer 1. An oil film coating 22 is fixedly connected inside the second sheath 21, which makes the cable easy to bend and more flexible. A first sheath 23 is fixedly connected inside the oil film coating 22. The first sheath 23 is made of cross-linked polyolefin and is an insulation material with excellent heat resistance, insulation and environmental stress cracking resistance. Multiple conductors 24 are fixedly connected inside the first sheath 23. The conductors 24 are Class 5 copper conductors 24.

[0013] Reference Figure 1 , Figure 2 and Figure 4The anti-bending mechanism 3 includes a waterproof layer 31, which can effectively prevent external sewage from entering the interior of the mechanism and avoid sewage from affecting the structural stability of the spiral steel wire 321 component. At the same time, it reduces the damage to the internal structure caused by sewage intrusion. The waterproof layer 31 is externally fixedly connected to the interior of the outer protective layer 1. The waterproof layer 31 is externally fixedly connected to a bending component 32. The bending component 32 integrates the spiral steel wire 321 and the embedded groove 322 to form a dual structure of protection and support, thereby improving the overall performance of the anti-bending mechanism 3. The bending component 32 includes a spiral steel wire 321, which is spirally distributed to evenly distribute external forces. When the mechanism is subjected to bending force, it can resist deformation through its own rigidity, avoiding excessive bending of the cable that could lead to breakage and damage. At the same time, the spiral structure also has a certain degree of flexibility to adapt to normal angle adjustment requirements. The spiral steel wire 321 is externally fixedly connected to the inside of the outer protective layer 1. An embedding groove 322 is provided on the outside of the waterproof layer 31. The embedding groove 322 is precisely matched with the shape of the spiral steel wire 321, which can stably embed the spiral steel wire 321 into the waterproof layer 31, preventing the spiral steel wire 321 from shifting during the operation and bending process of the mechanism, ensuring that the supporting force is evenly transmitted, and at the same time enhancing the tightness of the connection between the waterproof layer 31 and the spiral support layer, preventing the layers from separating.

[0014] Reference Figure 2 , Figure 3 and Figure 4 The inner wall of the waterproof layer 31 is fixedly connected to the outer wall of the second protective layer 21, the outer side of the bending component 32 is fixedly connected to the inside of the outer protective layer 1, the outer side of the spiral steel wire 321 is fixedly connected to the outside of the embedded groove 322, and the outer side of the spiral steel wire 321 is fixedly connected to the outside of the waterproof layer 31.

[0015] Working principle: The internal conductor 24 of the cable is a Category 5 copper conductor 24. A layer of tin is coated on the surface of a single copper conductor 24 (diameter ≤ 0.5mm). Then, multiple single wire bundles are twisted together according to the process requirements to form a Category 5 tin-coated conductor 24. Two sheaths are continuously extruded on the surface of the tin-coated conductor 24. The first sheath 23 is made of cross-linked polyolefin material, and the second sheath 21 is made of polyurethane material. After the first sheath is extruded, a layer of silicone oil film is coated on its surface using a coating equipment. The oil film coating 22 is designed to completely cover the first sheath 23 without dripping. A second layer of polyurethane sheath material is extruded on the outside of the oil film coating 22. Finally, the developed cable is irradiated using a high-energy electron irradiation device to complete the production of the developed product.

[0016] During daily use, the outer protective layer 1 will resist daily external wear and tear and protect the internal structure. When the cable is bent, multi-strand spiral steel wire 321 is used to limit the bending angle of the cable to ensure the safety of cable use. The waterproof layer 31 can block the entry of external rainwater and sewage.

[0017] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An oil- and corrosion-resistant locomotive irradiation flexible cable, comprising an outer protective layer (1), characterized in that: The outer protective layer (1) is provided with an inner protective mechanism (2), and the outer protective layer (1) is provided with an anti-bending mechanism (3). The inner protective mechanism (2) includes a second protective layer (21), the outside of which is fixedly connected to the inner wall of the outer protective layer (1), and an oil film coating (22) is fixedly connected inside the second protective layer (21). A first protective layer (23) is fixedly connected inside the oil film coating (22), and a plurality of conductors (24) are fixedly connected inside the first protective layer (23).

2. The oil-resistant and corrosion-resistant locomotive irradiation flexible cable according to claim 1, characterized in that: The bending mechanism (3) includes a waterproof layer (31), the outside of which is fixedly connected to the inside of the outer protective layer (1), and a bending component (32) is fixedly connected to the outside of the waterproof layer (31).

3. The oil-resistant and corrosion-resistant locomotive irradiation flexible cable according to claim 2, characterized in that: The bending component (32) includes a spiral steel wire (321), the spiral steel wire (321) is fixedly connected to the outside of the outer protective layer (1), and the waterproof layer (31) has an embedded groove (322) on its outside.

4. The oil-resistant and corrosion-resistant locomotive irradiation flexible cable according to claim 2, characterized in that: The inner wall of the waterproof layer (31) is fixedly connected to the outer wall of the second protective layer (21), and the outer side of the bending component (32) is fixedly connected to the inside of the outer protective layer (1).

5. The oil-resistant and corrosion-resistant locomotive irradiation flexible cable according to claim 3, characterized in that: The spiral wire (321) is externally fixedly connected to the outside of the embedded groove (322), and the spiral wire (321) is externally fixedly connected to the outside of the waterproof layer (31).

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