High-temperature-resistant high-flexibility drag chain cable

Abstract

The utility model discloses a high-temperature-resistant high-flexibility drag chain cable, which comprises a cable core and a sheath wrapping the cable core, the cable core comprises a plurality of wire cores, the plurality of wire cores and a plurality of cotton threads are twisted to form the cable core, and the structure of the sheath sequentially comprises a mylar layer, a shielding layer and an outer protection layer from inside to outside. The cable is reasonable in structural design, and has the following beneficial effects: the cotton threads are twisted with the wire cores, the flexibility of the cable is increased, the cable is not easy to break during bending and folding, and the layer of mylar is lapped in front of the shielding layer, so that the wire cores are effectively protected from being damaged, additional insulation and protection effects are provided, and the service life of the cable is prolonged. Meanwhile, due to the arrangement of other structures, the high temperature resistance and the high flexibility of the cable are further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a high-temperature resistant and high-flexibility drag chain cable. Background Art

[0002] A cable is a device for transmitting electrical energy or signals. It usually consists of several or several groups of wires and has the characteristics of internal power conduction and external insulation. Cables can be used to transmit electrical (magnetic) energy and information, and realize the conversion of electromagnetic energy. They are widely used in fields such as urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. There are many types of cables, including power cables, control cables, compensating cables, shielded cables, high-temperature cables, etc., which are used to connect circuits and electrical appliances.

[0003] With the continuous improvement of the level of industrial automation, the demand for drag chain cables is also increasing. Especially in heavy industries such as automobile manufacturing, machine tool equipment, processing equipment, and industrial equipment, it is required that the cable can maintain stable information conduction and good mechanical properties under the conditions of high-speed movement and harsh environments. The requirements for drag chain cables are getting higher and higher, and the current drag chain cables cannot meet the existing needs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-temperature resistant and high-flexibility drag chain cable to solve the problem that the cable in the prior art cannot maintain stable information conduction and good mechanical properties under the conditions of high-speed movement and harsh environments.

[0005] To achieve the above purpose, the technical solution of the utility model provides a high-temperature resistant and high-flexibility drag chain cable, which includes a cable core and a sheath wrapping the cable core. The cable core includes several wire cores, and several of the wire cores are stranded with several cotton threads to form the cable core. The structure of the sheath is, from the inside to the outside, a mylar layer, a shielding layer, and an outer protective layer.

[0006] Further, the wire core is formed by stranding two conductors.

[0007] Further, an insulating layer is also wrapped outside the conductor, and bulletproof wires are arranged inside the conductor.

[0008] Further, the conductor is a class-six tinned copper conductor, which is formed by stranding multiple strands of tinned copper wires. When stranding, bulletproof wires are added inside the conductor and stranded together with the multiple strands of tinned copper wires.

[0009] Further, the wire core also includes a tape, and the tape wraps the outer surface of the two conductors after stranding.

[0010] Further, the number of the cores is four, and the cores are symmetrically arranged around the center of the cable core; there are five cotton threads, four of the five cotton threads are arranged in the gaps between the cores, and one is arranged at the center of the cable core.

[0011] Further, the insulating layer is a silicone rubber insulating layer, and the tape is an aramid non-woven fabric tape.

[0012] Further, the cotton thread is a high-temperature resistant cotton thread, and the mylar layer is a high-temperature resistant mylar layer.

[0013] Further, the shielding layer is a shielding layer braided with tinned copper wires, and the braiding density is ≥80%; the outer protective layer is a silicone rubber sheath.

[0014] Further, the cross-sectional shape of the cable is circular.

[0015] In summary, the structural design of the present utility model is reasonable. By applying the technical solution of the present utility model, the following beneficial effects are achieved: The cable of the present utility model has the advantages of both high temperature resistance and high flexibility, and can maintain stable performance under harsh working conditions. Specifically as follows:

[0016] 1. High temperature resistance

[0017] The high-temperature resistant and high-flexibility drag chain cable adopts special silicone rubber high-temperature resistant materials, and can maintain good electrical performance and mechanical performance in high-temperature environments.

[0018] 2. High flexibility

[0019] In order to adapt to frequent bending and movement, the high-temperature resistant and high-flexibility drag chain cable adopts a high-flexibility structural design. The cable conductor adopts multi-strand fine tinned conductors, and at the same time, high-strength bulletproof wires are added to the conductor to increase the bending strength; the core wires of the cable are woven with paired tinned wires in longitude and latitude, and multiple groups are assembled into a cable, and then the cable body is woven with tinned wires, so that it has high flexibility and bending resistance.

[0020] 3. Anti-electromagnetic interference

[0021] The high-temperature resistant and high-flexibility drag chain cable usually adopts tinned copper wire braided shielding, which can effectively resist electromagnetic interference and ensure stable signal transmission. This is particularly important for stable information conduction and frequent bending occasions that require no difference change in industrial environments.

[0022] 4. Corrosion resistance and flexibility

[0023] The outer sheath of the cable adopts silicone rubber with corrosion resistance and flexibility materials, so that it has a long service life in complex industrial environments. Brief description of the drawings

[0024] Figure 1It is a schematic cross-sectional structure diagram of the high-temperature and high-flexibility drag chain cable of the present utility model;

[0025] Explanation of reference numerals in the drawings: 1 - conductor; 2 - bulletproof wire; 3 - insulating layer; 4 - tape; 5 - cotton thread; 6 - Mylar layer; 7 - shielding layer; 8 - outer protective layer. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model, but it does not constitute a limitation on the protection scope of the present utility model.

[0027] In the present utility model, for clearer description, the following is stated: When an observer observes facing the attached Figure 1 drawing, the front left side of the observer is set as the front, the rear right side of the observer is set as the rear, the left rear side of the observer is set as the left, the front right side of the observer is set as the right, the upper side of the observer is set as the upper, and the lower side of the observer is set as the lower. It should be noted that the terms "front end", "rear end", "left side", "right side", "middle part", "upper side", "lower side", etc. in the text indicate the orientation or position relationship based on the orientation or position relationship set in the accompanying drawings, and are only for facilitating the clear description of the present utility model, rather than indicating or implying that the structures or components referred to must have a specific orientation and be constructed in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", "fourth" are only used for the purpose of clear or simplified description, and cannot be understood as indicating or implying relative importance or quantity.

[0028] The high-temperature and high-flexibility drag chain cable of the present utility model is a cable specially designed for use in harsh working environments. It not only needs to withstand the challenge of high temperatures, but also has high flexibility and durability to adapt to the continuous reciprocating motion and frequent bending challenges in the drag chain system.

[0029] The present utility model uses silicone rubber insulation and sheath materials, which greatly reduces the outer diameter of the cable and saves the installation space in the drag chain. At the same time, it also has high flexibility, and the designed bending life can reach 5 million cycles of bending. In addition, the cable of the present utility model also has the advantages of being waterproof, oil-resistant, ultraviolet-resistant, and excellent weather resistance. It can still maintain flexibility under low-temperature conditions, and the sheath is double-twisted and shielded to be used in occasions with stricter requirements for electromagnetic interference. The high-temperature and high-flexibility drag chain cable of the present utility model can be widely applied to power drag chains or mobile portable machine components. They are also suitable for measurement, control, and adjustment cables, and play a role in the power circuits in equipment installation projects, automation project electrical equipment. In addition, such cables are also suitable for assembly lines, production lines, the automotive manufacturing industry, transportation equipment, machine tool equipment, etc.

[0030] As a cable designed specifically for industrial automation environments, the high-temperature and high-flexibility drag chain cable of the present utility model has an increasing demand with the progress of industrial development. Through continuous technological innovation and product optimization, it meets the market demand for high-performance cables.

[0031] See Figure 1 , the technical solution of the present utility model provides a high-temperature and high-flexibility drag chain cable, which includes a cable core and a sheath wrapping the cable core. The cable core includes several wire cores, and several wire cores and several cotton threads 5 are stranded into a cable core. The structure of the sheath is, from the inside to the outside, a Mylar layer 6, a shielding layer 7, and an outer protection layer 8.

[0032] As a preferred embodiment of the present utility model, the wire core is stranded by two conductors 1; an insulating layer 3 is also wrapped outside the conductor 1, and a bulletproof wire 2 is arranged inside the conductor 1; the conductor 1 is a sixth-class tinned copper conductor, and the conductor 1 is a conductor stranded by multiple strands of tinned copper wires. When the conductor 1 is stranded, the bulletproof wire 2 is added inside and stranded together with multiple strands of tinned copper wires.

[0033] The sixth-class tinned copper wire is stranded by multiple strands of tinned copper wires and has good bending characteristics. Tinned copper has good electrical conductivity; the surface coating of tinned copper can prevent the oxidation of copper, improve its anti-corrosion performance, has good mechanical properties, and can withstand various physical impacts and abrasions.

[0034] The bulletproof wire 2 is stranded together with multiple strands of tinned copper wires inside the conductor 1. The bulletproof wire 2 is mainly made of multi-aryl fibers and has functions of high tensile strength and high pulling force; low elongation, high modulus, high fracture strength, high heat resistance, high flammability, not melting and not supporting combustion but only carbonizing, and has high chemical resistance, high stability, creep resistance, and excellent heat resistance performance, etc.

[0035] Specifically, the wire core further includes a tape 4, and the tape 4 wraps the outer surface after the two conductors 1 are stranded; the insulating layer 3 is a silicone rubber insulating layer, and the tape 4 is an aramid non-woven fabric tape.

[0036] As a preferred embodiment of the present utility model, the number of wire cores is 4, and the wire cores are symmetrically arranged around the center of the cable core; there are five cotton threads 5, and four of the five cotton threads 5 are arranged in the gaps between the wire cores, and one is arranged at the center of the cable core.

[0037] The silicone rubber insulating material is used. The main advantages of the silicone rubber insulating material include good high-temperature resistance and can work under the actual requirement of 250°C; good cold resistance and is suitable for use in low-temperature environments; corrosion-resistant and is suitable for use in corrosive environments such as acids and alkalis; wear-resistant and is suitable for use in cases of frequent bending and friction, etc.

[0038] After the two conductors 1 are twisted together, they are wrapped with aramid non-woven fabric, which can effectively prevent the cable from loosening or deforming due to bending or vibration during use. This is crucial for maintaining the structural integrity of the cable and the quality of the transmitted signal. Aramid non-woven fabric is a material with excellent high-temperature resistance. It can withstand long-term operation at 220 degrees Celsius without aging or shrinking, and can continuously operate at 240 degrees Celsius without change in the strength of the product.

[0039] Specifically, the cotton thread 5 is a high-temperature resistant cotton thread, and the Mylar layer 6 is a high-temperature resistant Mylar.

[0040] The high-temperature resistant cotton thread can increase the flexibility of the cable, making it not easily break when bent and folded, thus extending the service life of the cable. The high-temperature resistant cotton thread can also increase the mechanical strength of the cable, making it more capable of withstanding external pressure and tension. Wrapping a layer of high-temperature resistant Mylar before cable braiding can effectively protect the wire core from damage. The main purpose of wrapping the high-temperature resistant Mylar is to provide additional insulation and protection effects to enhance the performance and stability of the cable in a high-temperature environment. The chemical corrosion resistance can effectively improve the service life and safety of the cable.

[0041] Specifically, the shielding layer 7 is a shielding layer braided with tinned copper wires, and the braiding density ≥ 80%; the outer protective layer 8 is a silicone rubber sheath. The Mylar layer 6 is braided and shielded with tinned copper wires on the outside, and the braiding density ≥ 80%, mainly to prevent electrostatic interference, electromagnetic induction, crosstalk induction and interference generated by other signal lines in the energy storage system, and ensure the normal operation of the system transmission. The outer protective layer 8 uses silicone rubber sheath material, which has good high-temperature resistance, low-temperature resistance, weather resistance, insulation performance, good mechanical properties, corrosion resistance and low-temperature flexibility, etc., to ensure the normal operation of the cable and extend the service life of the cable.

[0042] Specifically, the cross-sectional shape of the cable is circular.

[0043] The main features of the cable of the present utility model:

[0044] The present utility model provides a high-temperature resistant and highly flexible drag chain cable, which is a cable specially designed for use in high-temperature and frequently bent environments. It combines the advantages of high-temperature resistance and high flexibility, and can maintain stable performance under harsh working conditions. This kind of cable is usually used in fields such as industrial automation, mechanical equipment, aerospace, etc., to meet the needs of power and signal transmission in high-temperature and dynamic environments.

[0045] 1. High-temperature resistance

[0046] The high-temperature resistant and highly flexible drag chain cable uses special silicone rubber high-temperature resistant materials, which can maintain good electrical performance and mechanical performance in high-temperature environments.

[0047] 2. High flexibility

[0048] To adapt to frequent bending and movement, the high-temperature resistant and highly flexible drag chain cable adopts a highly flexible structural design. The cable conductor uses multi-strand fine tinned conductors, and at the same time, high-strength bulletproof wires are added to the conductor to increase the bending strength; the core wires of the cable are woven with paired tinned wires in a warp and weft pattern, and multiple groups are assembled into a cable, and then the cable body is woven with tinned wires, making it have high flexibility and bending resistance.

[0049] 3. Anti-electromagnetic interference

[0050] The high-temperature resistant and highly flexible drag chain cable usually adopts a tinned copper wire braided shield, which can effectively resist electromagnetic interference and ensure the stable transmission of signals. This is particularly important for stable information conduction with no differential changes and frequent bending occasions in industrial environments.

[0051] 4. Corrosion resistance and flexibility

[0052] The outer sheath of the cable uses silicone rubber, a material with corrosion resistance and flexibility, giving it a long service life in complex industrial environments.

[0053] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A high temperature resistant and highly flexible drag chain cable, comprising a cable core and a sheath wrapping the cable core, wherein the cable core comprises a plurality of wire cores, characterized in that: A plurality of the wire cores and a plurality of cotton threads are twisted into a cable core, and the structure of the sheath is a Mylar layer, a shielding layer and an outer protective layer from the inside to the outside.

2. According to claim 1, a high temperature resistant and highly flexible drag chain cable is characterized in that: The core is formed by twisting two conductors.

3. According to claim 2, a high temperature resistant and highly flexible drag chain cable is characterized in that: The conductor is also wrapped with an insulating layer, and a bulletproof wire is arranged inside the conductor.

4. According to claim 3, a high temperature resistant and highly flexible drag chain cable is characterized in that: The conductor is a sixth category tinned copper conductor, which is formed by twisting a plurality of tinned copper wires. When the conductor is twisted, bulletproof wire is added inside the conductor and is twisted together with the plurality of tinned copper wires.

5. A high temperature resistant and highly flexible drag chain cable according to claim 3 or 4, characterized in that: The wire core further comprises a wrapping tape, which is wrapped around the outer surface of the two conductors after being twisted together.

6. A high temperature resistant and highly flexible drag chain cable according to claim 5, characterized in that: The number of the wire cores is 4, and the wire cores are symmetrically arranged around the center of the cable core; the cotton threads are arranged at five locations, four of which are arranged in the gaps between the wire cores, and one is arranged in the center of the cable core.

7. A high temperature resistant and highly flexible drag chain cable according to claim 5, characterized in that: The insulating layer is a silicone rubber insulating layer, and the wrapping tape is an aramid non-woven fabric wrapping tape.

8. A high temperature resistant and highly flexible drag chain cable according to any one of claims 1, 2, 3, 4, 6 and 7, characterized in that: The cotton thread is a high temperature resistant cotton thread, and the Mylar layer is a high temperature resistant Mylar layer.

9. A high temperature resistant and highly flexible drag chain cable according to any one of claims 1, 2, 3, 4, 6 and 7, characterized in that: The shielding layer is a shielding layer woven with tinned copper wires, and the braiding density is ≥80%; the outer protective layer is a silicone rubber sheath.

10. A high temperature resistant and highly flexible drag chain cable according to any one of claims 1, 2, 3, 4, 6 and 7, characterized in that: The cross-section of the cable is circular.

Images