Long-stroke drag chain durable servo hybrid cable

Abstract

The utility model discloses a long-stroke drag chain durable servo hybrid cable, which comprises a finished cable, a filler and a sheath, the finished cable is mainly formed by integrating a pair of inner cable wires and two pairs of power cable core wires, the inner cable wire is mainly formed by twisting two data cable core wires and wrapping the periphery of the two data cable core wires with an aluminum-plastic composite belt, and the outer periphery of the two data cable core wires is wrapped with a sheath. A tinned copper wire unit weaving layer wraps the periphery of the aluminum-plastic composite belt in a weaving mode, a cabling internal gap part is formed in the middle defined by the pair of inner cable wires and the two pairs of power cable core wires, the cabling internal gap part is filled with filler, and the periphery of the cabling is wrapped by a sheath. The sheath is mainly composed of a halogen-free inner sheath, a tinned copper wire total braid layer and a PUR outer sheath which are sequentially arranged from inside to outside. The servo hybrid cable disclosed by the utility model has excellent tensile strength and tensile performance, effectively improves the bearing capacity, can also effectively prevent deformation or damage caused by external force, and can still keep efficient electric power and signal transmission in a severe working environment.

Description

Technical Field

[0001] The utility model relates to the technical field of wires and cables, and in particular to a long-stroke drag chain durable servo hybrid cable. Background Art

[0002] With the continuous development of industrial automation and robotics, the performance requirements for long-travel drag chain servo hybrid cables are becoming increasingly stringent. In the future, these cables will develop towards higher flexibility, greater wear resistance, improved tensile and fatigue resistance, and stronger environmental adaptability. Furthermore, with increasing environmental awareness, environmentally friendly long-travel drag chain servo hybrid cables will also become a future development trend.

[0003] Existing traditional drag chain servo hybrid cables have several drawbacks. These primarily suffer from wear and tear, leading to performance degradation or damage during long-term, high-frequency mobile use. Furthermore, bending can damage these cables due to stress concentration in long drag chains. Their poor flexibility makes them difficult to adapt to complex mobile environments. Furthermore, when used in oily or corrosive environments, traditional cables are susceptible to performance degradation due to material aging or corrosion. Furthermore, traditional cables are susceptible to external interference during signal transmission, leading to signal distortion or loss. Summary of the Invention

[0004] In order to solve the problems existing in the background technology, the utility model provides a long-stroke drag chain durable servo hybrid cable.

[0005] The technical solution of the utility model is as follows:

[0006] The utility model includes a cable, a filler and a sheath; the cable is mainly composed of a pair of inner cables and two pairs of power cable core wires, the inner cable is mainly formed by two data cable core wires twisted into a pair and coated with an aluminum-plastic composite tape on the outer periphery, a tinned copper wire unit braided layer is woven around the outer periphery of the aluminum-plastic composite tape, and an internal gap part of the cable is formed in the middle surrounded by a pair of inner cables and the two pairs of power cable core wires, the internal gap part of the cable is filled with the filler, and the outer periphery of the cable is wrapped by the sheath.

[0007] The cabling is mainly formed by twisting a pair of inner cables and two pairs of power cable core wires, and the middle pore formed by twisting the pair of inner cables and the two pairs of power cable core wires serves as the internal gap part.

[0008] The two pairs of power cable core wires are arranged alternately along the circumference of the filler in a unit of one pair and the inner cables of a pair are arranged alternately in a unit of one cable.

[0009] The sheath mainly consists of a halogen-free inner sheath, a tinned copper wire braided layer and a PUR outer sheath which are arranged in sequence from the inside to the outside.

[0010] The outer layer of the cable is extruded into a halogen-free inner sheath through an extruder, the halogen-free inner sheath is covered with a tinned copper wire braided layer, and the outer layer of the tinned copper wire braided layer is extruded into a PUR outer sheath through an extruder.

[0011] The halogen-free inner sheath is filled in the gap between the tinned copper wire braided layer and the cable, the inner circumference of the tinned copper wire braided layer contacts the outer circumference of the halogen-free inner sheath, and the outer circumference of the tinned copper wire braided layer contacts the inner circumference of the PUR outer sheath.

[0012] The halogen-free inner sheath is made of halogen-free material.

[0013] The PUR outer sheath is made of polyurethane material.

[0014] The filler is expanded foamed PP yarn.

[0015] The core wire of the data cable adopts Category 6 conductor.

[0016] The beneficial effects of the utility model are:

[0017] 1. The polyurethane sheath of this utility model adopts polyurethane PUR material, which has excellent tensile strength and can provide reliable tensile performance for the cable in long distance, high frequency bending and mobile environments.

[0018] 2. The braided mesh in the utility model is made of tinned copper wire. The aluminum-plastic composite tape and the tinned copper wire shielding can prevent electromagnetic interference generated by the power lines and other cables around the signal lines.

[0019] 3. The expanded foamed PP yarn filler is filled into the center of the cable core. Its superior tensile strength can provide reliable tensile performance for the cable in the long-stroke drag chain operation environment, meeting the servo hybrid cable's continuous tensile force and repeated bending fatigue in long-stroke, high-speed drag chain operation. This feature enables the cable to maintain efficient power and signal transmission in harsh working environments.

[0020] In summary, the long-stroke drag chain durable servo hybrid cable with patented design of this utility model is designed for long-distance, high-frequency mobile applications. It significantly improves the performance of traditional cables in terms of wear resistance, bending resistance, flexibility, oil resistance, corrosion resistance and anti-interference ability, and can still maintain highly stable power and signal transmission performance under long-stroke, high-frequency, high-strength and high-wear-resistant drag chain working conditions; by adopting highly wear-resistant materials, special structural design, oil-resistant and corrosion-resistant materials and optimized signal transmission design, this cable not only extends its service life, but also can maintain stable performance in complex and harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the cross-sectional structure of the long-travel drag chain durable servo hybrid cable of the utility model.

[0022] In the figure: 1. Data cable core wire, 2. Aluminum-plastic composite tape, 3. Tinned copper wire unit braid layer, 4. Power cable core wire, 5. Filler, 6. Halogen-free inner sheath, 7. Tinned copper wire total braid layer, 8. PUR outer sheath. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0024] The cross-sectional structure of the long-travel drag chain durable servo hybrid cable is as follows: Figure 1 As shown, it includes a cable, a filler 5 and a sheath; the cable is mainly composed of a pair of inner cables and two pairs of power cable core wires 4. The inner cable is mainly formed by two data cable core wires 1 twisted into a pair and coated with an aluminum-plastic composite tape 2 on the outer periphery. A tinned copper wire unit braided layer 3 is woven around the outer periphery of the aluminum-plastic composite tape 2. The inner gap part of the cable is formed in the middle between the pair of inner cables and the two pairs of power cable core wires 4. The inner gap part of the cable is filled with a filler 5, and the outer periphery of the cable is wrapped by the sheath.

[0025] The cross-sectional structure of the long-travel drag chain durable servo hybrid cable is as follows: Figure 1 As shown, the cable is mainly formed by twisting a pair of inner cables and two pairs of power cable core wires 4 together, and the middle pore formed by twisting a pair of inner cables and the two pairs of power cable core wires 4 together serves as the internal gap part.

[0026] The power transmission insulated core wires are twisted back into cables with a very small pitch to increase the bendability of the cable while eliminating the stress in the cable, reducing the stress and fracture of the cable when it is twisted and bent, and improving the cable life.

[0027] In a specific implementation, two pairs of power cable core wires 4 are arranged alternately along the circumference of the filler 5 in a pair as a unit and a pair of inner cables are arranged in a unit of one cable, that is, an inner cable is arranged between the two pairs of power transmission insulating core wires 3, and a pair of power transmission insulating core wires 3 is arranged between the two inner cables.

[0028] The cross-sectional structure of the long-travel drag chain durable servo hybrid cable is as follows: Figure 1 As shown, the sheath mainly consists of a halogen-free inner sheath 6, a tinned copper wire braid 7, and a PUR outer sheath 8, which are arranged in sequence from the inside out. In a specific implementation, the outer layer of the cable is extruded with a halogen-free inner sheath 6 through an extruder. The halogen-free inner sheath 6 is then covered with a tinned copper wire braid 7. The outer layer of the tinned copper wire braid 7 is then extruded with a PUR outer sheath 8.

[0029] The aluminum-plastic composite tape 2, the tinned copper wire unit braided layer 3 and the tinned copper wire total braided layer 7 can prevent electromagnetic interference generated by power lines and other cables around the signal line during operation.

[0030] The halogen-free inner sheath 6 fills the gap between the tinned copper wire braided layer 7 and the cable. The inner circumference of the tinned copper wire braided layer 7 contacts the outer circumference of the halogen-free inner sheath 6 , and the outer circumference of the tinned copper wire braided layer 7 contacts the inner circumference of the PUR outer sheath 8 .

[0031] Halogen-free inner sheath 6 is made of halogen-free material. In a specific implementation, an armor-type inner sheath can be used, and the inner sheath is extruded and molded on the outside of the semi-finished cable structure under high pressure, thereby ensuring that the core wire structure does not shift or loosen, and providing a stable circular foundation for the shielding layer.

[0032] The PUR outer sheath 8 is made of polyurethane material. Its superior tensile strength can provide reliable tensile performance for the cable in long-distance, high-frequency bending and mobile environments, and its excellent wear resistance extends the service life of the cable.

[0033] Filler 5 uses expanded foamed PP yarn. Filler 5 is filled to the center of the cable core. Its superior tensile strength provides reliable tensile resistance for the cable in long-travel drag chain environments. This meets the servo hybrid cable's requirements for the sustained tensile forces and repeated bending fatigue experienced in long-travel, high-speed drag chain operation. This characteristic enables the cable to maintain efficient power and signal transmission even in harsh operating environments.

[0034] The data cable core wire 1 uses a Category 6 conductor. The data cable core wire of the present invention can use IEC 60226 Category 6 ultra-fine conductor as a power and signal transmission carrier, and the twisting adopts a back-twist process to avoid the risk of conductor breakage caused by mechanical impact such as dragging and bending during high-speed operation.

[0035] Certain modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. Furthermore, although certain specific terms are used in this specification, these terms are for convenience only and do not constitute any limitation on the present invention. As described in the above embodiments of the present invention, other wires and cables with the same or similar structures are also within the scope of protection of the present invention.

Claims

1. A long-travel drag chain durable servo hybrid cable, characterized by: The invention comprises a cable, a filler (5) and a sheath; the cable is mainly composed of a pair of inner cables and two pairs of power cable core wires (4); the inner cable is mainly formed by twisting two data cable core wires (1) and wrapping an aluminum-plastic composite tape (2) on the outer periphery; a tinned copper wire unit braided layer (3) is woven around the outer periphery of the aluminum-plastic composite tape (2); the inner space portion of the cable is formed in the middle surrounded by the pair of inner cables and the two pairs of power cable core wires (4); the inner space portion of the cable is filled with the filler (5); and the outer periphery of the cable is wrapped by the sheath.

2. The long-travel drag chain durable servo hybrid cable according to claim 1, characterized in that: The cabling is mainly formed by twisting a pair of inner cables and two pairs of power cable core wires (4), and the middle pore formed by twisting the pair of inner cables and the two pairs of power cable core wires (4) serves as the internal gap part.

3. The long-travel drag chain durable servo hybrid cable according to claim 1, characterized in that: Two pairs of power cable core wires (4) are arranged alternately along the outer periphery of the filler (5) in a pair as a unit, and a pair of inner cables are arranged in a unit of one.

4. The long-travel drag chain durable servo hybrid cable according to claim 1, characterized in that: The sheath mainly consists of a halogen-free inner sheath (6), a tinned copper wire braided layer (7) and a PUR outer sheath (8) which are arranged in sequence from the inside to the outside.

5. The long-travel drag chain durable servo hybrid cable according to claim 4, characterized in that: The outer layer of the cable is extruded into a halogen-free inner sheath (6) by an extruder, the halogen-free inner sheath (6) is covered with a tinned copper wire braided layer (7), and the outer layer of the tinned copper wire braided layer (7) is extruded into a PUR outer sheath (8) by an extruder.

6. The long-travel drag chain durable servo hybrid cable according to claim 5, characterized in that: The halogen-free inner sheath (6) is filled in the gap between the tinned copper wire braided layer (7) and the cable, the inner peripheral surface of the tinned copper wire braided layer (7) is in contact with the outer peripheral surface of the halogen-free inner sheath (6), and the outer peripheral surface of the tinned copper wire braided layer (7) is in contact with the inner peripheral surface of the PUR outer sheath (8).

7. The long-travel drag chain durable servo hybrid cable according to claim 4, characterized in that: The halogen-free inner sheath (6) is made of halogen-free material.

8. The long-travel drag chain durable servo hybrid cable according to claim 4, characterized in that: The PUR outer sheath (8) is made of polyurethane material.

9. The long-travel drag chain durable servo hybrid cable according to claim 1, characterized in that: The filler (5) is made of expanded foamed PP yarn.

10. The long-travel drag chain durable servo hybrid cable according to claim 1, characterized in that: The data cable core wire (1) adopts Category 6 conductor.

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