Robot dog hip joint dynamic application power and signal transmission composite cable

Abstract

The utility model discloses a robot dog hip joint dynamic application power and signal transmission composite cable. The composite cable comprises a first-layer structure, a second-layer structure and a polyurethane sheath, the first-layer structure and the second-layer structure are both arranged in the polyurethane sheath, the peripheral surface of the first-layer structure is in contact with the second-layer structure, the first-layer structure comprises an inner cable and a tinned copper foil wire woven mesh, the inner cable is wrapped by the tinned copper foil wire woven mesh, and the tinned copper foil wire woven mesh is wrapped by the outer-layer structure. The second-layer structure comprises a plurality of power transmission insulating core wires and fillers, the plurality of power transmission insulating core wires and the first-layer structure are arranged in the polyurethane sheath together, and the fillers are filled in the polyurethane sheath except the parts occupied by the first-layer structure and the power transmission insulating core wires. According to the utility model, the data signal insulation core wires are reasonably distributed and are filled with the expansion type foaming PP yarns, so that the structural stability and the tensile property of the core wires are ensured, and reliable data transmission under complex working conditions is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wires and cables, and in particular to a composite cable for transmitting power and signals for dynamic application of hip joints of a robot dog. Background Art

[0002] As a type of bionic robot, the robot dog needs to simulate the complex movements of animal joints, including hip flexion / extension, abduction / adduction, and internal / external rotation. Therefore, the power and signal transmission composite cable acts as a bridge connecting the motor, sensor, and controller, ensuring that the robot dog can complete various movements efficiently and accurately.

[0003] In the industrial sector, robotic dogs can be used for tasks such as material handling and equipment inspection on automated production lines. These tasks require the robot to possess high-precision, stable, and reliable motion performance. Composite cables, as key components connecting motors and controllers, have a direct impact on the stability and reliability of the robot in military and industrial applications. The composite cables used for power and signal transmission in the robot's hip joint, the most frequently moving part, also require high resistance to bending and torsion.

[0004] Existing conventional cables are easily damaged due to frequent bending and stretching in dynamic applications of the robot dog's hip joint, resulting in unstable power transmission and signal distortion due to signal attenuation or interference. Summary of the Invention

[0005] In order to solve the problems existing in the background technology, the utility model provides a composite cable for dynamic application power and signal transmission of a robot body.

[0006] The technical solution of the utility model is as follows:

[0007] The utility model includes a first layer structure, a second layer structure and a polyurethane sheath, wherein the first layer structure and the second layer structure are both arranged inside the polyurethane sheath, and the outer peripheral surface of the first layer structure is in contact with the second layer structure; the first layer structure is mainly composed of an inner cable and a tinned copper foil wire braided mesh, and the outer periphery of the inner cable is wrapped by the tinned copper foil wire braided mesh; the second layer structure is mainly composed of a plurality of power transmission insulating core wires and fillers, and the plurality of power transmission insulating core wires and the first layer structure are arranged inside the polyurethane sheath together, and the filler is filled in the part inside the polyurethane sheath except the part occupied by the first layer structure and the power transmission insulating core wire.

[0008] The inner cable is mainly composed of four twisted-pair cables, expanded foamed PP yarn and aluminum-plastic composite tape; the pore parts between the four twisted-pair cables and the aluminum-plastic composite tape and the internal pore parts surrounded by the four twisted-pair cables themselves are filled with expanded foamed PP yarn; the twisted-pair cables and the expanded foamed PP yarn are both wrapped in the aluminum-plastic composite tape.

[0009] Each of the twisted pair cables is mainly composed of two data signal insulated core wires twisted together.

[0010] The plurality of power transmission insulating core wires are arranged around the outer periphery of the first layer structure and are in contact with the outer peripheral surface of the tinned copper foil wire braided mesh in the first layer structure.

[0011] The filler is made of polypropylene material.

[0012] The polyurethane sheath is made of polyurethane material.

[0013] The tinned copper foil wire braided mesh is made of sheet-shaped copper foil wire, and the foil wire is spirally wound.

[0014] The beneficial effects of the present invention are:

[0015] 1. The utility model adopts expanded foamed PP yarn to fill the data cable to improve the tightness of the internal structure of the cable. At the same time, during high-speed torsion and bending, the expanded foamed PP yarn can effectively share the tensile force and reduce the risk of breakage caused by internal mechanical pulling.

[0016] 2. The polyurethane sheath in the utility model is made of polyurethane PUR material, and its superior tensile strength can provide reliable tensile performance for the cable in the robot environment of complex working conditions.

[0017] 3. The braided mesh in this utility model is woven from tinned copper foil. The aluminum-plastic composite tape and tinned copper foil shielding prevent electromagnetic interference generated by power lines and other cables around the signal lines. The copper foil is evenly spirally wound around the outer circumference of the fiber to form a hollow cylindrical structure. The central fiber of the copper foil bears the vertical tensile force, which can be used to avoid the risk of data cable breakage caused by long-term bending.

[0018] 4. The data cable core wire 1 of the present invention adopts IEC 60226 Class 6 ultra-fine conductor as the signal transmission carrier, and the twisting adopts the back-twist process to avoid the risk of conductor breakage caused by mechanical impact such as dragging and bending during high-speed operation.

[0019] 5. The power transmission insulated core wire in the present invention is twisted back into cable with a very small pitch to increase the bendability of the cable while eliminating the stress of the cable, reducing the stress fracture when the cable is twisted and bent, and improving the service life of the cable; the polypropylene filler is filled into the center of the cable core and the gaps around it. Its superior tensile strength can provide the cable with reliable tensile performance in the robot dog operating environment under complex working conditions, meeting the dynamic application of power and signal transmission composite cable for the robot dog hip joint. The cable, as the most frequently moving part, requires higher bending resistance, torsion resistance and other properties.

[0020] In summary, the power and signal transmission composite cable for dynamic applications of the robot dog's hip joint provided by the utility model significantly improves the power transmission efficiency and signal clarity compared to conventional cables, enhances dynamic adaptability and anti-interference performance, and at the same time achieves lightweight design and integrated functions, solving the problems of conventional cables in power loss, signal distortion, complex wiring, insufficient reliability and safety hazards, providing the robot dog with a more efficient, more stable and safer power and signal transmission solution, improving its overall performance and movement flexibility, and can still maintain stable power transmission and signal transmission performance under the robot's high load, high strength and high durability environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a composite cable for transmitting power and signals for dynamic application of hip joint of the robot dog of the utility model.

[0022] In the figure: 1. Data signal insulated core wire, 2. Expanded foam PP yarn, 3. Aluminum-plastic composite tape, 4. Tinned copper foil braided mesh, 5. Power transmission insulated core wire, 6. Filler, 7. Polyurethane 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 composite cable for power and signal transmission in the dynamic application of the robot dog's hip joint is as follows: Figure 1 As shown, it includes a first layer structure, a second layer structure and a polyurethane sheath 7. The first layer structure and the second layer structure are both arranged inside the polyurethane sheath 7, and the outer peripheral surface of the first layer structure is in contact with the second layer structure; the first layer structure is mainly composed of an inner cable and a tinned copper foil wire braided mesh 4. The outer periphery of the inner cable is wrapped by the tinned copper foil wire braided mesh 4, and the inner peripheral surface of the tinned copper foil wire braided mesh 4 is in contact with the outer peripheral surface of the inner cable; the second layer structure is mainly composed of a plurality of power transmission insulating core wires 5 and fillers 6. The plurality of power transmission insulating core wires 5 and the first layer structure are arranged together inside the polyurethane sheath 7, and the portion inside the polyurethane sheath 7 except the portion occupied by the first layer structure and the power transmission insulating core wire 5 is filled with fillers 6.

[0025] The cross-sectional structure of the composite cable for power and signal transmission in the dynamic application of the robot dog's hip joint is as follows: Figure 1 As shown, the inner cable primarily consists of four twisted pairs of cables, expanded foamed PP yarn 2, and aluminum-plastic composite tape 3. The interstices between the four twisted pairs of cables and the aluminum-plastic composite tape 3, as well as the interstices within the four twisted pairs of cables themselves, are filled with expanded foamed PP yarn 2. The twisted pairs of cables and the expanded foamed PP yarn 2 are both encased within the aluminum-plastic composite tape 3. Filling the data cable with expanded foamed PP yarn 2 improves the tightness of the cable's internal structure. Furthermore, during high-speed twisting and bending, the expanded foamed PP yarn 2 effectively shares tensile forces, reducing the risk of breakage caused by internal mechanical strain.

[0026] Each twisted-pair cable is primarily composed of two twisted-pair data signal insulated core wires. Specifically, the data signal insulated core wires can utilize IEC 60226 Class 6 ultra-fine conductors, which further enhance the conductor's flexibility and mechanical strength. The back-twisting process also mitigates the risk of conductor breakage caused by mechanical impacts such as bending in a small bend radius during continuous cable movement.

[0027] Several insulated power transmission core wires 5 are arranged around the periphery of the first layer and contact the outer circumference of the tinned copper foil braided wire mesh 4 in the first layer. The insulated power transmission core wires 5 are twisted back into a cable at a very small pitch, increasing the cable's flexibility while eliminating cabling stress, reducing the risk of fracture during twisting and bending, and extending the cable's lifespan.

[0028] The filler 6 is made of polypropylene material. The excellent tensile strength of the polypropylene material used in the filler 6 can provide reliable tensile performance for the cable in a robot environment with complex working conditions.

[0029] The polyurethane sheath 7 is made of polyurethane material. The polyurethane material used in the polyurethane sheath 7 has excellent tensile strength and can provide reliable tensile performance for the cable in the robot dog operating environment of a complex working machine.

[0030] The tinned copper foil mesh 4 is made of sheet copper foil, and the foil is wound in a spiral shape. The tinned copper foil mesh 4 can shield the electromagnetic interference generated by other cables working around the robot and also avoid the risk of data cables breaking due to long-term bending.

[0031] 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. Wires and cables with other structures that utilize the same or similar structures as the above-described embodiments of the present invention are also within the scope of protection of the present invention.

Claims

1. A composite cable for transmitting power and signals for dynamic application of hip joints of a robot dog, characterized by: The invention comprises a first layer structure, a second layer structure and a polyurethane sheath (7), wherein the first layer structure and the second layer structure are both arranged inside the polyurethane sheath (7), and the outer peripheral surface of the first layer structure contacts the second layer structure; the first layer structure is mainly composed of an inner cable and a tinned copper foil wire braided mesh (4), and the outer periphery of the inner cable is wrapped by the tinned copper foil wire braided mesh (4); the second layer structure is mainly composed of a plurality of power transmission insulating core wires (5) and a filler (6), wherein the plurality of power transmission insulating core wires (5) and the first layer structure are arranged together inside the polyurethane sheath (7), and the filler (6) is filled in the portion inside the polyurethane sheath (7) except the portion occupied by the first layer structure and the power transmission insulating core wire (5).

2. The composite cable for transmitting power and signals for dynamic application of hip joint of a robot dog according to claim 1, characterized in that: The inner cable is mainly composed of four twisted-pair cables, expanded foamed PP yarn (2) and an aluminum-plastic composite tape (3); the pores formed between the four twisted-pair cables and the aluminum-plastic composite tape (3) and the internal pores formed by the four twisted-pair cables themselves are filled with expanded foamed PP yarn (2); the twisted-pair cables and the expanded foamed PP yarn (2) are both wrapped in the aluminum-plastic composite tape (3).

3. The composite cable for transmitting power and signals for dynamic application of hip joint of a robot dog according to claim 2, characterized in that: Each of the twisted pair cables is mainly composed of two data signal insulated core wires (1) twisted together.

4. The composite cable for transmitting power and signals for dynamic application of hip joint of a robot dog according to claim 1, characterized in that: The plurality of power transmission insulating core wires (5) are arranged around the outer periphery of the first layer structure and are in contact with the outer peripheral surface of the tinned copper foil wire braided mesh (4) in the first layer structure.

5. The composite cable for transmitting power and signals for dynamic application of hip joint of a robot dog according to claim 1, characterized in that: The filler (6) is made of polypropylene material.

6. The composite cable for transmitting power and signals for dynamic application of hip joint of a robot dog according to claim 1, characterized in that: The polyurethane sheath (7) is made of polyurethane material.

7. The composite cable for transmitting power and signals for dynamic hip joint applications of a robot dog according to claim 1, characterized in that: The tinned copper foil wire braided mesh (4) is made of sheet-shaped copper foil wire, and the foil wire is spirally wound.

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