A device for testing the abrasion resistance of an aircraft wrapping cable

Abstract

The application discloses an aviation litz wire cable abrasion resistance testing device and relates to the technical field of litz wire cables.The existing litz wire cable abrasion resistance testing device cannot conveniently replace and clamp litz wires according to different cross-sectional diameters before litz wire cable abrasion resistance testing, and cannot adjust the corresponding pressure and abrasion resistance of the litz wire during testing.The aviation litz wire cable abrasion resistance testing device comprises a tension adjusting mechanism, a cable mounting mechanism and a cable main body, the middle part of the tension adjusting mechanism is provided with a pressure adjusting support mechanism, the upper end surface of the pressure adjusting support mechanism is provided with a synchronous friction mechanism, and the two ends of the synchronous friction mechanism are provided with two cable mounting mechanisms on the upper end surface of the tension adjusting mechanism.The litz wire is positioned and clamped, the replacement and tension adjustment of the litz wire are facilitated, the pressure and friction degree of the litz wire can be adjusted according to the requirements of the abrasion resistance testing, and the contrast experiment is facilitated.

Description

A device for testing the abrasion resistance of wrapped cables for aviation applications Technical Field

[0001] This invention relates to the field of wrapped cable technology, specifically to a device for testing the abrasion resistance of wrapped cables for aviation applications. Background Technology

[0002] As one of the main forms of electrical insulation, wire and cable insulation requires a comprehensive balance of properties including abrasion resistance, cut resistance, chemical resistance, flame retardancy, smoke emission, operating temperature rating, and dielectric properties. Compared to general ground-based cables, aerospace cables undoubtedly have more practical and special requirements. For example, the weight of the insulation material, vacuum gas escape capability, resistance to atomic oxygen, ultraviolet radiation, and high-energy radiation must be considered, as well as its flame retardancy, mechanical properties, and even the process performance of the insulation material during cable production. Abrasion resistance testing is required during the production of wrapped cables.

[0003] Existing abrasion resistance testing devices for wrapped cables are inconvenient to replace and clamp according to different cross-sectional diameters of the wrapped cable before abrasion testing, and cannot adjust the pressure and abrasion resistance conditions of the wrapped cable during testing; therefore, they do not meet the existing requirements. In response, we propose an abrasion resistance testing device for aerospace wrapped cables. Summary of the Invention

[0004] The purpose of this invention is to provide an abrasion resistance testing device for aviation wrapped cables, in order to solve the problems mentioned in the background art, such as the inconvenience of changing and clamping the wrapped cables according to different cross-sectional diameters before abrasion resistance testing, and the inability to adjust the pressure and abrasion resistance conditions of the wrapped cables during testing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an abrasion resistance testing device for aviation wrapped cables, comprising a tension adjustment mechanism, a cable mounting mechanism, and a cable body. A voltage adjustment support mechanism is installed in the middle of the tension adjustment mechanism, a synchronous friction mechanism is installed on the upper end face of the voltage adjustment support mechanism, and two cable mounting mechanisms are installed at both ends of the synchronous friction mechanism on the upper end face of the tension adjustment mechanism. A cable body is installed inside the two cable mounting mechanisms.

[0006] The pressure regulating support mechanism includes a second double-ended screw, two movable push plates are installed on the outer side of the second double-ended screw, a protective partition shell is installed on the upper end face of the two movable push plates, five cylinders are evenly installed on the inner side of the protective partition shell, a pressure detection seat is installed on the upper end face of the cylinder, and an adjusting support seat is fixedly installed on the outer side of the pressure detection seat.

[0007] The synchronous friction mechanism includes a first protective cover, a second protective cover installed on one side of the first protective cover, five positioning sleeves evenly installed on the inner side of the second protective cover, a drive shaft installed on the inner side of the positioning sleeves, a rotating wheel installed on the outer side of the middle part of the drive shaft, and a friction sleeve provided on the outer side of the rotating wheel.

[0008] Preferably, the synchronous friction mechanism further includes a transmission steel belt, on one side of which a second transmission motor is installed. Two positioning plates are installed on one side of both the first and second protective covers, and a guide plate is installed on the outer side of the bottom end of the positioning plate.

[0009] Preferably, the tension adjustment mechanism includes a support base, two transmission plates are slidably connected to the inner side of the support base, a first double-ended screw is installed on the inner side of the two transmission plates, a first transmission motor is installed at one end of the first double-ended screw, and four guide rails are fixedly installed on the upper surface of the support base.

[0010] Preferably, the cable installation mechanism includes a second guide seat, a first guide seat is mounted on the upper surface of the second guide seat, four electric push rods are mounted on the inner sides of the first and second guide seats, an arc-shaped positioning plate is fixedly mounted on one end of each electric push rod, an adjusting handle is mounted on the inner side of the upper end of the first guide seat, and an arc-shaped clamping seat is rotatably connected to the bottom end of the adjusting handle.

[0011] Preferably, both the first protective cover and the second protective cover are located on the outside of the guide bend plate. Both the first protective cover and the second protective cover are connected to the guide bend plate through positioning inserts. The positioning sleeve is rigidly connected to the second protective cover. One end of the drive shaft extends through the first protective cover, the drive steel belt, the friction sleeve, and the rotating wheel to the inside of the positioning sleeve. The drive shaft is connected to the drive steel belt and the second drive motor through gears.

[0012] Preferably, the drive shaft and the rotating wheel are connected by a flat key, and the friction sleeve and the rotating wheel are fixed by screws. The outer surfaces of the five friction sleeves are all provided with grinding patterns, and the roughness of the five grinding patterns increases sequentially from right to left along the axial direction of the first double-ended screw.

[0013] Preferably, the bottom end of the movable push plate passes through the support base and is connected to the second double-ended screw via threads. Both ends of the first and second double-ended screws are provided with external threads with opposite directions of rotation. Both ends of the first double-ended screw are connected to the two transmission connecting plates via threads. The upper end of the transmission connecting plate passes through the support base and is connected and fixed to the second guide seat via screws.

[0014] Preferably, the protective partition shell and the support base are fixedly connected by a second double-ended screw and a movable push plate. The upper end of the adjusting support seat penetrates the protective partition shell and fits against the outer surface of the cable body. The adjusting support seat and the cylinder are connected by a pressure detection seat. The pressure detection seat is equipped with a pressure sensor, and the pressure sensor is model KH15-S91.

[0015] Preferably, the first guide seat and the second guide seat are connected by a hinge, and the inner sides of the first guide seat and the second guide seat are provided with cable mounting grooves. The cable body is disposed inside the cable mounting grooves, and both ends of the cable body are connected and fixed to the first guide seat and the second guide seat through arc-shaped positioning plates and arc-shaped clamping seats.

[0016] Preferably, one end of the electric push rod passes through the second guide seat and is fixed to the arc-shaped positioning plate by screws, the bottom end of the adjusting handle passes through the upper end of the first guide seat and extends to the upper end face of the arc-shaped pressing seat, and the adjusting handle is connected to the first guide seat by threads.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention enables the rotating of the adjustment handle to drive the arc-shaped clamping seat to clamp the two ends of the wrapped wire. The electric push rod drives the two arc-shaped positioning plates in each group to move towards each other, so that the two adjacent arc-shaped positioning plates can position the wrapped wire and keep the wrapped wire in the middle of the two adjacent arc-shaped positioning plates. The movable push plate drives the protective partition shell to adjust its height relative to the support base, so that the upper end of the protective partition shell can fit with the outer surface of the friction sleeve, avoiding the subsequent deviation of the wrapped wire. The first double-headed screw and the transmission connecting plate drive the two cable installation mechanisms to move in opposite directions, so as to realize the tensioning operation of the cable body.

[0019] 2. This invention uses a pressure testing seat to drive a protective partition shell to lift the cable body. The height of the five adjustable support seats increases or decreases sequentially from right to left along the axis of the first double-ended screw, making it easy to apply different levels of pressure to the outer surface of the cable body. The drive shaft and the friction sleeve are fixedly connected by rotating wheels. The outer surface of the friction sleeve is provided with a grinding pattern. The roughness of the five grinding patterns increases sequentially from right to left along the axis of the first double-ended screw. Thus, when the five rotating wheels drive the friction sleeve to rotate synchronously, the wear resistance of the wrapped wire surface can be quickly tested under different pressures, and comparative experiments can be easily carried out. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a bottom view of the entire invention;

[0022] Figure 3 is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 4 is a partial cross-sectional structural diagram of the cable installation mechanism of the present invention;

[0024] Figure 5 is a schematic diagram of the installation structure of the friction sleeve of the present invention;

[0025] Figure 6 is a partial cross-sectional structural diagram of the synchronous friction mechanism of the present invention.

[0026] In the diagram: 1. Tension adjustment mechanism; 101. Support base; 102. First drive motor; 103. Guide slide bar; 104. First double-ended screw; 105. Transmission connecting plate; 2. Cable installation mechanism; 201. First guide seat; 202. Second guide seat; 203. Electric push rod; 204. Arc-shaped clamping seat; 205. Adjustment handle; 206. Arc-shaped positioning plate; 3. Synchronous friction mechanism; 301. First protective cover; 302. 303. Second protective cover; 304. Guide bend plate; 305. Drive shaft; 306. Positioning sleeve; 307. Friction sleeve; 308. Positioning insert plate; 309. Rotating wheel; 310. Drive steel belt; 4. Second drive motor; 4. Pressure regulating support mechanism; 401. Second double-ended screw; 402. Movable push plate; 403. Cylinder; 404. Adjusting support seat; 405. Protective partition shell; 406. Pressure detection seat; 5. Cable body. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The first drive motor 102 (model YS7134), electric push rod 203 (model HTKC-35), second drive motor 310 (model GV50-3.7KW-60-S) and cylinder 403 (model MDBB40-150Z) mentioned in this invention can all be obtained from the market or through private customization.

[0029] Please refer to Figures 1 to 6. One embodiment of the present invention is a test device for the abrasion resistance of wrapped cables for aviation use, comprising a tension adjustment mechanism 1, a cable mounting mechanism 2, and a cable body 5. The tension adjustment mechanism 1 includes a support base 101, with two transmission connecting plates 105 slidably connected to the inner side of the support base 101. A first double-ended screw 104 is installed on the inner side of the two transmission connecting plates 105. A first transmission motor 102 is installed at one end of the first double-ended screw 104. Four guide slides 103 are fixedly installed on the upper end surface of the support base 101. A pressure regulating support mechanism 4 is installed in the middle of the tension adjustment mechanism 1. A synchronous friction mechanism 3 is installed on the upper end surface of the pressure regulating support mechanism 4. Two cable mounting mechanisms 2 are installed at both ends of the synchronous friction mechanism 3 on the upper end surface of the tension adjustment mechanism 1. A cable body 5 is installed on the inner side of the two cable mounting mechanisms 2.

[0030] The pressure regulating support mechanism 4 includes a second double-headed screw 401. Two movable push plates 402 are installed on the outer side of the second double-headed screw 401. A protective partition shell 405 is installed on the upper end face of the two movable push plates 402. Five cylinders 403 are evenly installed on the inner side of the protective partition shell 405. A pressure detection seat 406 is installed on the upper end face of the cylinders 403. The pressure detection seat 406 drives the protective partition shell 405 to push the cable body 5 upward, so as to apply different degrees of pressure to the outer surface of the cable body 5. An adjusting support seat 404 is fixedly installed on the outer side of the pressure detection seat 406.

[0031] The synchronous friction mechanism 3 includes a first protective cover 301, a second protective cover 302 mounted on one side of the first protective cover 301, five positioning sleeves 305 evenly mounted on the inner side of the second protective cover 302, a drive shaft 304 mounted on the inner side of the positioning sleeves 305, a rotating wheel 308 mounted on the outer side of the middle of the drive shaft 304, and a friction sleeve 306 provided on the outer side of the rotating wheel 308. When the five rotating wheels 308 drive the friction sleeves 306 to rotate synchronously, it can quickly detect the wear resistance of the surface of the wrapped wire under different pressures, and facilitates... To enable comparative experiments, the synchronous friction mechanism 3 also includes a transmission steel belt 309. A second transmission motor 310 is installed on one side of the transmission steel belt 309. Two positioning plates 307 are installed on one side of both the first protective cover 301 and the second protective cover 302. A guide plate 303 is installed on the outer side of the bottom end of the positioning plate 307. The whole assembly positions and clamps the wrapping wire, which facilitates the replacement and tension adjustment of the wrapping wire. It can also adjust the pressure and friction of the wrapping wire according to the requirements of wear resistance testing, which facilitates comparative experiments.

[0032] The cable installation mechanism 2 includes a second guide seat 202, a first guide seat 201 is installed on the upper surface of the second guide seat 202, four electric push rods 203 are installed on the inner side of the first guide seat 201 and the second guide seat 202, an arc-shaped positioning plate 206 is fixedly installed on one end of the electric push rod 203, an adjustment handle 205 is installed on the inner side of the upper end of the first guide seat 201, and an arc-shaped clamping seat 204 is rotatably connected to the bottom end of the adjustment handle 205.

[0033] The first guide seat 201 and the second guide seat 202 are connected by a hinge. The inner sides of the first guide seat 201 and the second guide seat 202 are provided with cable mounting grooves. The cable body 5 is set inside the cable mounting groove. Both ends of the cable body 5 are connected and fixed to the first guide seat 201 and the second guide seat 202 through the arc-shaped positioning plate 206 and the arc-shaped clamping seat 204. One end of the electric push rod 203 passes through the second guide seat 202 and is connected and fixed to the arc-shaped positioning plate 206 by screws. The bottom end of the adjusting handle 205 passes through the upper end of the first guide seat 201 and extends to the upper end face of the arc-shaped clamping seat 204. The adjusting handle 205 is connected to the first guide seat 201 by threads. The two cable mounting mechanisms 2 are driven to move in opposite directions through the first double-headed screw 104 and the transmission connecting plate 105, thereby realizing the adjustment of the tightness of the cable body 5.

[0034] The first protective cover 301 and the second protective cover 302 are both located on the outside of the guide bend plate 303. Both the first protective cover 301 and the second protective cover 302 are connected to the guide bend plate 303 via a positioning insert plate 307. The positioning sleeve 305 is rigidly connected to the second protective cover 302. One end of the drive shaft 304 extends through the first protective cover 301, the drive steel belt 309, the friction sleeve 306, and the rotating wheel 308 to the inside of the positioning sleeve 305. The drive shaft 304 is connected to the drive steel belt 309 and the second protective cover 302. All drive motors 310 are connected by gears, drive shaft 304 is connected to rotating wheel 308 by a flat key, friction sleeve 306 is connected and fixed to rotating wheel 308 by screws, and the outer surface of the five friction sleeves 306 is provided with grinding texture. The roughness of the five grinding textures increases from right to left along the axis of the first double-ended screw 104. When the five rotating wheels 308 drive the friction sleeves 306 to rotate synchronously, the wear resistance of the surface of the wrapping wire can be quickly tested under different pressures, and it is convenient to carry out comparative experiments.

[0035] The bottom end of the movable push plate 402 passes through the support base 101 and is connected to the second double-ended screw 401 by threads. Both ends of the first double-ended screw 104 and the second double-ended screw 401 are provided with external threads with opposite directions of rotation. Both ends of the first double-ended screw 104 are connected to the two transmission connecting plates 105 by threads. The upper end of the transmission connecting plate 105 passes through the support base 101 and is connected and fixed to the second guide seat 202 by screws.

[0036] The protective partition shell 405 and the support base 101 are fixedly connected by the second double-headed screw 401 and the movable push plate 402. The upper end of the adjustable support base 404 passes through the protective partition shell 405 and fits against the outer surface of the cable body 5. The adjustable support base 404 and the cylinder 403 are connected by the pressure detection seat 406. The pressure detection seat 406 is equipped with a pressure sensor. The pressure detection seat 406 drives the protective partition shell 405 to push the cable body 5 upward, so as to apply different degrees of pressure to the outer surface of the cable body 5.

[0037] In summary, the wrapped wire to be tested is placed on the upper surface of the protective partition shell 405, so that both ends of the wrapped wire pass through the second guide seat 202 and are inserted into the inner side of the first guide seat 201 and the arc-shaped pressing seat 204. Cable mounting grooves are provided on the inner sides of the first guide seat 201 and the second guide seat 202, allowing the wrapped wire to be guided and placed through the cable mounting grooves. Power is turned on, and the bottom end of the adjusting handle 205 extends through the upper end of the first guide seat 201 to the upper surface of the arc-shaped pressing seat 204. The adjusting handle 205 is threadedly connected to the first guide seat 201, so that rotating the adjusting handle 205 can drive the arc-shaped pressing seat 204 to press the two ends of the wrapped wire. The electric push rod 203 is activated, and one end of the electric push rod 203... The end of the second guide seat 202 is connected and fixed to the arc-shaped positioning plate 206 by screws. The four arc-shaped positioning plates 206 are divided into two groups, so that the electric push rod 203, under the support of the second guide seat 202, drives the two arc-shaped positioning plates 206 in each group to move towards each other. Thus, the two adjacent arc-shaped positioning plates 206 can position the wrapping wire and keep the wrapping wire in the middle of the two adjacent arc-shaped positioning plates 206. The protective partition shell 405 is connected and fixed to the support base 101 by the second double-ended screw 401 and the movable push plate 402. Specifically, both ends of the second double-ended screw 401 and the first double-ended screw 104 are provided with external threads with opposite directions of rotation. The bottom end of the movable push plate 402 passes through the support base 101 and is connected to the second double-ended screw by threads. 401 connection, the bottom end of the transmission connecting plate 105 passes through the support base 101 and is connected to both ends of the first double-ended screw 104 via threads, so that the rotation of the second double-ended screw 401 drives the protective partition shell 405 to adjust its height relative to the support base 101 through the movable push plate 402, thereby facilitating the upper end of the protective partition shell 405 to fit against the outer surface of the friction sleeve 306, preventing subsequent wire wrapping deviation, starting the first transmission motor 102, so that the first transmission motor 102, under the support of the support base 101, drives the two cable installation mechanisms 2 to move in opposite directions through the first double-ended screw 104 and the transmission connecting plate 105, thereby realizing the tensioning operation of the cable body 5, and the second protective cover 302 and the first protective cover 301 fit together. The outer side of the guide bend plate 303 allows the first protective cover 301 and the second protective cover 302 to move towards each other under the guidance of the guide bend plate 303. The first protective cover 301 and the second protective cover 302 are fixed by the positioning insert plate 307 inserted into the inner side of the guide bend plate 303. At this time, one end of the drive shaft 304 is inserted into the inner side of the positioning sleeve 305, activating the cylinder 403. Under the support of the protective partition shell 405, the cylinder 403 drives the protective partition shell 405 to push the cable body 5 upwards via the pressure detection seat 406. The height dimensions of the five adjustable support seats 404 increase or decrease sequentially from right to left along the axis of the first double-ended screw 104, facilitating the application of different degrees of pressure to the outer surface of the cable body 5.The pressure sensor inside the pressure detection seat 406 can accurately monitor the pressure. The drive shaft 304 and the drive steel belt 309, as well as the drive shaft 304 and the second drive motor 310, are all connected by gears. Starting the second drive motor 310, supported by the first protective cover 301, causes one of the drive shafts 304 to rotate via gears. This one drive shaft 304, through gears and the drive steel belt 309, can then synchronously drive the remaining four drive shafts 304 to rotate. The drive shaft 304 and the friction sleeve 306 are fixedly connected by rotating wheels 308. The outer surface of the friction sleeve 306 has a polishing texture. The roughness of the five polishing textures increases sequentially from right to left along the axis of the first double-ended screw 104. Thus, when the five rotating wheels 308 drive the friction sleeve 306 to rotate synchronously, the wear resistance of the wrapped wire surface can be quickly tested under different pressures, facilitating comparative experiments.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for testing the abrasion resistance of wrapped cables for aviation applications, comprising a tension adjustment mechanism (1), a cable mounting mechanism (2), and a cable body (5), characterized in that: A pressure regulating support mechanism (4) is installed in the middle of the tension adjustment mechanism (1). A synchronous friction mechanism (3) is installed on the upper end face of the pressure regulating support mechanism (4). Two cable mounting mechanisms (2) are installed at both ends of the synchronous friction mechanism (3) on the upper end face of the tension adjustment mechanism (1). A cable body (5) is installed inside the two cable mounting mechanisms (2). The tension adjustment mechanism (1) includes a support base (101). Two transmission connecting plates (105) are slidably connected to the inner side of the support base (101). A first double-headed screw (104) is installed inside the two transmission connecting plates (105). The pressure regulating support mechanism (4) The system includes a second double-ended screw (401), on which two movable push plates (402) are mounted. A protective partition shell (405) is mounted on the upper surface of each of the two movable push plates (402). Five cylinders (403) are evenly mounted on the inner side of the protective partition shell (405). A pressure detection seat (406) is mounted on the upper surface of each cylinder (403). An adjusting support seat (404) is fixedly mounted on the outer side of the pressure detection seat (406). The synchronous friction mechanism (3) includes a first protective cover (301), on which a second protective cover (302) is mounted. Five positioning sleeves (305) are evenly installed on the inner side of the first protective cover (302). A drive shaft (304) is installed on the inner side of the positioning sleeve (305). A rotating wheel (308) is installed on the outer side of the middle part of the drive shaft (304). A friction sleeve (306) is provided on the outer side of the rotating wheel (308). The synchronous friction mechanism (3) also includes a drive steel belt (309). A second drive motor (310) is installed on one side of the drive steel belt (309). Two positioning plates (307) are installed on one side of both the first protective cover (301) and the second protective cover (302). A guide plate (303) is installed on the outer side of the bottom end of the positioning plate (307). The protective cover (301) and the second protective cover (302) are both fitted onto the outside of the guide bend plate (303). The first protective cover (301) and the second protective cover (302) are both connected to the guide bend plate (303) through the positioning insert plate (307). The positioning sleeve (305) is rigidly connected to the second protective cover (302). One end of the drive shaft (304) passes through the first protective cover (301), the drive steel belt (309), the friction sleeve (306) and the rotating wheel (308) and extends to the inside of the positioning sleeve (305). The drive shaft (304) is connected to the drive steel belt (309) and the second drive motor (310) through gears.The drive shaft (304) and the rotating wheel (308) are connected by a flat key, and the friction sleeve (306) and the rotating wheel (308) are fixed together by screws. The outer surfaces of all five friction sleeves (306) are provided with polishing patterns, and the roughness of the five polishing patterns increases sequentially from right to left along the axial direction of the first double-ended screw (104).

2. The abrasion resistance testing device for aviation wrapped cables according to claim 1, characterized in that: One end of the first double-headed screw (104) is equipped with a first drive motor (102), and four guide rails (103) are fixedly installed on the upper surface of the support base (101).

3. The abrasion resistance testing device for aviation wrapped cables according to claim 2, characterized in that: The cable installation mechanism (2) includes a second guide seat (202), a first guide seat (201) is installed on the upper surface of the second guide seat (202), four electric push rods (203) are installed on the inner side of the first guide seat (201) and the second guide seat (202), an arc-shaped positioning plate (206) is fixedly installed on one end of the electric push rod (203), an adjustment handle (205) is installed on the inner side of the upper end of the first guide seat (201), and an arc-shaped clamping seat (204) is rotatably connected to the bottom end of the adjustment handle (205).

4. The abrasion resistance testing device for aviation wrapped cables according to claim 3, characterized in that: The bottom end of the movable push plate (402) passes through the support base (101) and is connected to the second double-ended screw (401) by threads. Both ends of the first double-ended screw (104) and the second double-ended screw (401) are provided with external threads with opposite directions of rotation. Both ends of the first double-ended screw (104) are connected to the two transmission connecting plates (105) by threads. The upper end of the transmission connecting plate (105) passes through the support base (101) and is connected and fixed to the second guide seat (202) by screws.

5. The abrasion resistance testing device for aviation wrapped cables according to claim 2, characterized in that: The protective partition shell (405) and the support base (101) are fixedly connected by the second double-headed screw (401) and the movable push plate (402). The upper end of the adjusting support seat (404) passes through the protective partition shell (405) and fits against the outer surface of the cable body (5). The adjusting support seat (404) and the cylinder (403) are connected by the pressure detection seat (406). The pressure detection seat (406) is equipped with a pressure sensor, and the pressure sensor is model KH15-S91.

6. The abrasion resistance testing device for aviation wrapped cables according to claim 3, characterized in that: The first guide seat (201) and the second guide seat (202) are connected by a hinge. The inner sides of the first guide seat (201) and the second guide seat (202) are provided with cable mounting grooves. The cable body (5) is set inside the cable mounting groove. Both ends of the cable body (5) are connected and fixed to the first guide seat (201) and the second guide seat (202) through arc-shaped positioning plates (206) and arc-shaped clamping seats (204).

7. The abrasion resistance testing device for aviation wrapped cables according to claim 3, characterized in that: One end of the electric push rod (203) passes through the second guide seat (202) and is fixed to the arc-shaped positioning plate (206) by screws. The bottom end of the adjusting handle (205) passes through the upper end of the first guide seat (201) and extends to the upper end face of the arc-shaped pressing seat (204). The adjusting handle (205) and the first guide seat (201) are connected by threads.

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