Cable wear resistance detection device

Abstract

The utility model discloses a cable wear resistance detection device. A cable wear resistance detection device comprises a friction plate used for rubbing a cable, an adjusting mechanism used for adjusting the height of the friction plate, an axial transmission mechanism used for driving the adjusting mechanism to do reciprocating linear motion, a test motor used for driving the transmission mechanism, two fixing mechanisms used for fixing the two ends of the cable, and a first rotating shaft used for installing the fixing mechanisms. The axial transmission mechanism is used for driving the first rotating shaft to rotate, the circumferential transmission mechanism is used for driving the first rotating shaft to rotate, the clutch mechanism is used for connecting or disconnecting the circumferential transmission mechanism and the test motor, the test frame is used for installing the test motor, the axial transmission mechanism, the circumferential transmission mechanism and the clutch mechanism, the friction plate is installed on the adjusting mechanism, and the adjusting mechanism is installed on the axial transmission mechanism. The two fixing mechanisms are mounted on the corresponding first rotating shafts correspondingly, and the first rotating shafts are rotationally mounted on the circumferential mounting base. The cable wear resistance detection device provided by the utility model can be used for carrying out friction test on the cable in the circumferential direction.

Description

Technical Field

[0001] This utility model relates to the field of cable abrasion resistance testing technology, and in particular to a cable abrasion resistance testing device. Background Technology

[0002] The inner layer of a cable typically has several or several groups of conductive cores, with each group of conductors insulated from each other, while the outermost layer is an abrasion-resistant layer made of abrasion-resistant material. Because cables inevitably come into contact with external substances during transportation, installation, and use, abrasion resistance tests are required on the cable insulation layer during the cable manufacturing process to ensure the cable's safety during use.

[0003] Current cable abrasion testing equipment typically uses friction pads to rub the cable a certain number of times before checking for leakage. During the test, the friction pads move back and forth in a straight line along the cable's axis. However, in actual transportation, installation, and use, cables experience not only axial friction but also circumferential friction. Existing abrasion testing equipment only tests in the axial direction and cannot fully simulate the friction conditions that cables may encounter in actual use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cable abrasion resistance testing device that can perform circumferential friction testing on cables.

[0005] To address the aforementioned problems, this utility model provides a cable abrasion resistance testing device. The device includes a friction plate for rubbing the cable, an adjustment mechanism for adjusting the height of the friction plate, an axial transmission mechanism for driving the adjustment mechanism in reciprocating linear motion, a test motor for driving the transmission mechanism, two fixing mechanisms for fixing both ends of the cable, a first rotating shaft for mounting the fixing mechanisms, a circumferential transmission mechanism for transmitting power to the first rotating shaft and driving it to rotate, a clutch mechanism for connecting or disconnecting the circumferential transmission mechanism from the test motor, and a test frame for mounting the test motor, the axial transmission mechanism, the circumferential transmission mechanism, and the clutch mechanism. The friction plate is mounted on the adjustment mechanism, the adjustment mechanism is mounted on the axial transmission mechanism, the two fixing mechanisms are respectively mounted on corresponding first rotating shafts, the first rotating shafts are rotatably mounted on circumferential mounting seats, and the circumferential transmission mechanism is connected to one of the first rotating shafts.

[0006] Furthermore, the output end of the test motor is provided with an output gear, the clutch mechanism has a clutch gear that meshes with the output gear, the circumferential transmission mechanism has a circumferential transmission gear that meshes with the clutch gear, and the axial transmission mechanism has an axial transmission gear that meshes with the output gear.

[0007] Furthermore, the clutch mechanism includes a clutch gear for meshing with the output gear, a shaft for mounting the clutch gear, a mounting plate for mounting the shaft, and a locking pin for fixing the position of the shaft. The clutch gear is rotatably mounted on the shaft. There are two mounting plates, located on both sides of the clutch gear. The shaft is slidably mounted on the two mounting plates. The shaft slides on the mounting plates, causing the clutch gear to slide. The shaft is provided with a clutch locking hole and a meshing locking hole for engaging with the locking pin. When the locking pin is inserted into the clutch locking hole, the clutch gear simultaneously disengages from both the output gear and the circumferential transmission gear. When the locking pin is inserted into the meshing locking hole, the clutch gear simultaneously meshes with both the output gear and the circumferential transmission gear.

[0008] Furthermore, the circumferential transmission device includes a circumferential transmission gear for meshing with a clutch gear, a gear mounting seat for mounting the circumferential transmission gear, a drive column for mounting the circumferential transmission gear, and a rocker arm for driving the first rotating shaft to reciprocate. The axial transmission gear is mounted on the gear mounting seat via a gear shaft, the rocker arm is fixed on the first rotating shaft, the drive column passes through the rocker arm, and the drive column is eccentrically disposed on the circumferential transmission gear.

[0009] Furthermore, the axial transmission mechanism includes an adjustment mounting base for mounting the adjustment mechanism, an axial transmission rod for mounting the adjustment mounting base, a support base for supporting the axial transmission rod, a drive shaft for pushing the axial transmission rod to reciprocate along the cable axis on the support base, an axial transmission gear for meshing with the output gear, and second rotating shafts mounted on the axial transmission gear and the drive shaft. The two ends of the axial transmission rod are slidably disposed on the support base. The drive shaft is provided with a drive groove, and the axial transmission rod is provided with a drive rod inserted into the drive groove. The two second rotating shafts are respectively rotatably disposed on the reciprocating drive mounting base.

[0010] Furthermore, the drive rod is fixed to the axial transmission rod by screws.

[0011] Furthermore, the fixing mechanism includes a movable clamp and a fixed clamp for mutually fixing the cable, an adjusting member for adjusting the position of the movable clamp, and a fixed seat for installing the fixed clamp. The fixed seat is installed on the circumferential transmission mechanism, the adjusting member is screwed onto the fixed seat, the adjusting member is inserted into the movable clamp, and the adjusting member rotates to drive the movable clamp to rise and fall.

[0012] Furthermore, the movable clamp is provided with a slot, and the lower end of the adjusting member is inserted into the slot.

[0013] Furthermore, the surfaces of the movable clamping plate and the fixed clamping plate opposite each other are provided with anti-slip teeth, and the surfaces of the fixed clamping plate and the movable clamping plate opposite each other are also provided with anti-slip teeth.

[0014] Furthermore, the adjustment mechanism is an electric push rod.

[0015] This utility model discloses a cable abrasion resistance testing device, which includes a test motor, a clutch mechanism, a circumferential transmission mechanism, a fixing mechanism mounted on the circumferential transmission mechanism, and a fixing mechanism rotatably mounted on a mounting base. The two fixing mechanisms fix the cable to be tested. The test motor drives the clutch mechanism, the clutch mechanism drives the circumferential transmission mechanism, the circumferential transmission mechanism drives the fixing mechanism circumferentially, and the fixing mechanism drives the cable circumferentially. The cable can rotate circumferentially relative to the friction plate, realizing circumferential testing of the cable. At the same time, an axial transmission mechanism is also provided to ensure that both circumferential and axial testing can be performed, which can better simulate the cable friction environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the cable abrasion resistance testing device of this utility model.

[0017] Figure 2 This is a schematic diagram of the drive shaft.

[0018] Figure 3 This is a schematic diagram of the connection structure between the drive rod and the axial transmission rod.

[0019] Figure 4 This is a top-down structural diagram of the clutch mechanism.

[0020] Figure 5 This is a schematic diagram of the clutch lock hole and the engagement lock hole.

[0021] Figure 6 This is a schematic diagram of the connection structure between the rocker arm and the drive column.

[0022] Figure 7 This is a structural diagram of the fixed mechanism.

[0023] Figure 8 yes Figure 7 A magnified view of part A in the image.

[0024] Figure 9 This is a structural diagram of the movable clamp.

[0025] The meanings of the labels in the attached diagram are as follows:

[0026] Cable 1, Test frame 21, Mounting plate 211, Workbench 212, Friction plate 22, Adjustment mechanism 3, Axial transmission mechanism 4, Adjustment mounting base 41, Axial transmission rod 42, Support base 43, Drive shaft 44, Drive groove 441, Axial transmission gear 45, Reciprocating drive mounting base 46, Second rotating shaft 47, Drive rod 48, Screw 49, Test motor 5, Output gear 51, Clutch mechanism 6, Clutch gear 61, Shaft 62 Clutch lock hole 621, engagement lock hole 622, mounting plate 63, insertion hole 631, locking pin 64, circumferential transmission mechanism 7, circumferential transmission gear 71, gear mounting seat 72, drive column 73, rocker arm 74, sliding groove 741, fixing mechanism 8, movable clamping plate 81, slot 811, anti-slip teeth 812, fixed clamping plate 82, adjusting component 83, fixed seat 84, extension part 841, anti-detachment part 85, first rotating shaft 91, circumferential mounting seat 92. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1As shown, a preferred embodiment of the cable abrasion resistance testing device of this utility model includes a test frame 21, a friction plate 22, an adjustment mechanism 3, an axial transmission mechanism 4, a test motor 5, a clutch mechanism 6, a circumferential transmission mechanism 7, a fixing mechanism 8, a first rotating shaft 91, and a circumferential mounting base 92. The test frame 21 includes a mounting plate 211 and a worktable 212, with the mounting plate 211 fixed to the worktable. The test motor 5 is fixed to the mounting plate 211 of the test frame 21 via a motor mounting base, and serves as a power source. The friction plate 22 is used to rub against the cable 1. The adjustment mechanism 3 is mounted on the axial transmission mechanism 4, and is used to adjust the height of the friction plate 22, ensuring that the friction plate 22 can contact the cable 1 even when testing cables 1 of different diameters, i.e., allowing the friction plate 22 to adapt to cables 1 of different diameters. The axial transmission mechanism 4 and the clutch mechanism 6 are both mounted on the mounting plate 211 of the test frame 21. The axial transmission mechanism 4 drives the adjustment mechanism 3 to reciprocate in the axial direction of the cable 1, thereby causing the friction plate 22 to reciprocate in the axial direction of the cable 1. The clutch mechanism 6 connects or disconnects the test motor 5 from the circumferential transmission mechanism 7. When the clutch mechanism 6 is connected, the test motor 5 can drive the circumferential transmission mechanism 7 through the clutch mechanism 6. When the clutch mechanism 6 is disconnected, the test motor 5 cannot drive the circumferential transmission mechanism 7. The fixing mechanism 8 is used to fix the cable 1. There are two fixing mechanisms 8, that is, both ends of the cable 1 are fixed on two fixing mechanisms 8. There are two first rotating shafts 91 and two circumferential mounting seats 92. Each fixing mechanism 8 is installed on the corresponding first rotating shaft 91, so that the fixing mechanism 8 can rotate with the first rotating shaft 91. Each first rotating shaft 91 is rotatably mounted on the circumferential mounting seat 92, so that the first rotating shaft 91 can rotate. The circumferential mounting seat 92 and the circumferential transmission mechanism 7 are both installed on the worktable 212.

[0029] The output end of the test motor 5 is equipped with an output gear 51, the clutch mechanism 6 has a clutch gear 61, the circumferential transmission mechanism 7 has a circumferential transmission gear 71, and the axial transmission mechanism 4 has an axial transmission gear 45. The output gear meshes with the axial transmission gear 45, thereby transmitting the power of the test motor 5 to the circumferential transmission mechanism 7. The clutch gear 61 meshes with the output gear 51 and the circumferential transmission gear 71, thereby transmitting the power of the test motor 5 to the circumferential transmission mechanism 7. Using gears to transmit power facilitates changing the transmission speed by setting the gear size.

[0030] The adjustment mechanism 3 is an electric push rod, and the friction plate 22 is fixed on the output end of the electric push rod. The electric push rod drives the friction plate 22 to rise and fall.

[0031] like Figures 1 to 3 As shown, the axial transmission mechanism 4 includes an adjusting mounting base 41, an axial transmission rod 42, a support base 43, a drive shaft 44, an axial transmission gear 45, a reciprocating drive mounting base 46, and a second rotating shaft 47. The adjusting mounting base 41 is mounted on the axial transmission rod 42 and moves with the axial transmission rod 42. The support base 43 supports the axial transmission rod 42, and both ends of the axial transmission rod 42 pass through the two support bases 43. The axial transmission rod 42 can slide on the support bases 43. A drive rod 48 is provided on the axial transmission rod 42 and inserted into the drive groove 441. The drive rod 48 drives the shaft 44. The support base 43 is mounted on the mounting plate 211 of the test frame 21. It should be noted that the axial transmission rod 42 slides on the support base 43 and will not fall off the support base 43. The drive shaft 44 is provided with a drive groove 441, and the drive rod 48 is inserted into the drive groove 441. The drive groove 441 is located on the outer wall of the drive shaft 44. When unfolded, the drive groove 441 forms a wave shape, ensuring that the drive rod 48 can circulate within the drive groove 441. When the drive shaft 44 rotates, it pushes the drive rod 48 to move in the axial direction of the cable 1, thereby driving the circumferential drive rod 48 to reciprocate. The drive shaft 44 is mounted on the axial transmission gear 45. There are two second rotating shafts 47, which are respectively welded and fixed to the axial transmission gear 45 and the drive shaft 44. The two second rotating shafts 47 are rotatably mounted on the reciprocating drive mounting base 46, so that the axial transmission gear 45 and the drive shaft 44 can rotate. A circulating drive groove 441 and a drive rod 48 that cooperate with the drive groove 441 are set on the drive shaft 44, so that the axial transmission gear 45 can achieve the reciprocating motion of the axial transmission rod 42 by only keeping one direction of rotation. That is, as long as the test motor 5 keeps rotating in the same direction, the friction plate 22 can be moved back and forth without the test motor 5 frequently reversing, which improves the service life of the motor.

[0032] The drive rod 48 is fixed to the axial transmission rod 42 by screws 49, which facilitates the installation and removal of the drive rod 48. When the drive rod 48 is removed, the axial transmission rod 42 cannot move back and forth; when the drive rod 48 is installed on the axial transmission rod and inserted into the drive groove 441, the drive shaft 44 can move back and forth towards the transmission rod 42.

[0033] like Figure 4 and Figure 5As shown, the clutch mechanism 6 includes a clutch gear 61, a shaft 62, a mounting plate 63, and a locking pin 64. The clutch gear 61 meshes with the output gear 51 and is rotatably mounted on the shaft 62, typically via bearings. There are two mounting plates 63, and the shaft 62 passes through both plates, allowing it to slide on the plates to change the position of the clutch gear 61. The shaft 62 has a clutch locking hole 621 and an engagement locking hole 622. The locking pin 64 is selectively inserted into either the clutch locking hole 621 or the engagement locking hole 622 to fix the position of the shaft 62, thereby fixing the position of the clutch gear 61. The mounting plate 63 has an insertion hole 631, through which the locking pin 64 passes before being inserted into the corresponding clutch locking hole 621 or engagement locking hole 622. The shaft 62 is L-shaped when viewed from above, facilitating its movement. When the locking pin 64 is inserted into the clutch locking hole 621, the clutch gear 61 simultaneously disengages from both the output gear 51 and the circumferential transmission gear 71, preventing the test motor 5 from transmitting power to the circumferential transmission mechanism 7. When the locking pin 64 is inserted into the engagement locking hole 622, the clutch gear 61 simultaneously engages with both the output gear 51 and the circumferential transmission gear 71, allowing the test motor 5 to transmit power to the circumferential transmission mechanism 7. When it is necessary to adjust the engagement of clutch gear 61 with output gear 51 and circumferential transmission gear 71, pull out the locking pin 64 inserted in clutch locking hole 621, then pull the shaft 62 to align the engagement locking hole 622 with the insertion hole 631, and then insert the locking pin 64 into the insertion hole 631 and engagement locking hole 622; when it is necessary to adjust the disengagement of clutch gear 61 with output gear 51 and circumferential transmission gear 71, pull out the pin inserted in engagement locking hole 622, then push the shaft 62 to align the clutch locking hole 621 with the insertion hole 631, and then insert the pin into the insertion hole 631 and clutch locking hole 621 to complete the adjustment.

[0034] like Figure 1 and Figure 6As shown, the circumferential transmission device includes a circumferential transmission gear 71, a gear mounting base 72, a drive column 73, and a swing arm 74. The circumferential transmission gear 71 is mounted on the gear mounting base 72 via a gear shaft. The circumferential transmission gear 71 meshes with a clutch gear 61. The gear mounting base 72 is mounted on the worktable 212 of the test frame 21. The swing arm 74 is fixed to the first rotating shaft 91 and has a sliding groove 741. The drive column 73 is mounted on the circumferential transmission gear 71 and is eccentrically positioned on the circumferential transmission gear 71. The drive column 73 is also inserted into the sliding groove 741 on the swing arm 74. The rotation of the circumferential transmission gear 71 drives the drive column 73 to rotate, which in turn drives the swing arm 74 to swing back and forth, thereby driving the first rotating shaft 91 to rotate back and forth, thus driving the fixed mechanism 8 to rotate back and forth, which in turn drives the cable 1 to rotate back and forth, thereby applying circumferential friction to the cable 1.

[0035] like Figure 1 , Figures 7 to 9 As shown, the fixing mechanism 8 includes a movable clamping plate 81, a fixed clamping plate 82, an adjusting member 83, and a fixing seat 84. The fixed clamping plate 82 is disposed on the fixing seat 84, and the fixing seat 84 is mounted on the first rotating shaft 91. The top surface of the fixing seat 84 extends to the side of the fixed clamping plate 82 to form an extension portion 841. The adjusting member 83 is screwed onto the extension portion 841, and the lower end of the adjusting member 83 is inserted into the movable clamping plate 81. The adjusting member 83 rotates on the extension portion 841, causing the movable clamping plate 81 to rise and fall. The movable clamping plate 81 and the fixed clamping plate 82 cooperate to fix the cable 1. When it is necessary to fix the cable 1, the cable 1 is placed on the fixed clamping plate 82, and then the adjusting member 83 is rotated to move the movable clamping plate 81 downward until the movable clamping plate 81 and the fixed clamping plate 82 can stably clamp the cable 1. Since the adjusting member 83 and the fixing seat 84 are connected by threads, the cable 1 will not loosen even if the adjusting member 83 is released.

[0036] The movable clamp 81 is provided with a slot 811, which is convex in shape. An anti-detachment part 85 is installed at the lower end of the adjusting member 83. The width of the anti-detachment part 85 is the same as the width of the bottom of the slot 811. The width of the adjusting member 83 is less than or equal to the width of the top opening of the slot 811. Thus, the anti-detachment part 85 and the adjusting member 83 can cooperate with the slot 811 and will not fall out of it. Anti-slip teeth 812 are provided on the surfaces of the movable clamp 81 and the fixed clamp 82 opposite to the movable clamp 81. The anti-slip teeth 812 increase the friction between the movable clamp 81 and the fixed clamp 82 and the cable 1, making the cable 1 more securely fixed.

[0037] When it is necessary to test the axial and circumferential wear resistance simultaneously, first fix both ends of the cable 1 to the fixing mechanism 8, then push the electric push rod to make the friction plate 22 contact with the cable 1, so that it can rub against the cable 1. Then adjust the meshing gear to mesh with the output gear 51 and the circumferential transmission gear 71. Then the test motor 5 starts, and the output gear 51 transmits power to the meshing gear and the axial transmission gear 45. The axial transmission gear 45 drives the drive shaft 44 to rotate. The drive shaft 44 drives the drive rod 48 to move along the drive groove 441. The drive rod 48 moves back and forth along the axial direction of the cable 1 under the drive of the drive groove 441, so as to achieve axial friction. At the same time, the rotation of the meshing gear drives the circumferential transmission gear 71 to rotate. The rotation of the axial gear drives the drive column 73 to rotate. The rotation of the drive column 73 drives the swing arm 74 to swing. The swing arm 74 drives the first rotating shaft 91 to rotate back and forth. The first rotating shaft 91 rotates back and forth, which drives the fixing mechanism 8 to rotate back and forth. Finally, it drives the cable 1 to rotate back and forth. In this way, the friction plate 22 can rub against the circumferential direction of the cable 1. It can withstand circumferential and axial friction, better simulating the operating environment of cable 1, and making the wear resistance test more accurate.

[0038] Of course, you can also test only the axial wear resistance by adjusting the meshing gear to be separated from the output gear 51 and the circumferential transmission gear 71. The operation is simple and convenient.

[0039] Of course, you can also test only the circumferential wear resistance by simply removing the drive rod 48 from the axial transmission rod 42. The operation is simple and convenient.

[0040] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A cable abrasion resistance testing device, characterized in that: The device includes a friction plate for rubbing a cable, an adjustment mechanism for adjusting the height of the friction plate, an axial transmission mechanism for driving the adjustment mechanism in reciprocating linear motion, a test motor for driving the transmission mechanism, two fixing mechanisms for fixing both ends of the cable, a first rotating shaft for mounting the fixing mechanisms, a circumferential transmission mechanism for transmitting power to the first rotating shaft and driving the first rotating shaft to rotate, a clutch mechanism for connecting or disconnecting the circumferential transmission mechanism from the test motor, and a test frame for mounting the test motor, the axial transmission mechanism, the circumferential transmission mechanism, and the clutch mechanism. The friction plate is mounted on the adjustment mechanism, the adjustment mechanism is mounted on the axial transmission mechanism, the two fixing mechanisms are respectively mounted on the corresponding first rotating shafts, the first rotating shafts are rotatably mounted on the circumferential mounting base, and the circumferential transmission mechanism is connected to one of the first rotating shafts.

2. The cable abrasion resistance testing device as described in claim 1, characterized in that: The output end of the test motor is provided with an output gear, the clutch mechanism has a clutch gear that meshes with the output gear, the circumferential transmission mechanism has a circumferential transmission gear that meshes with the clutch gear, and the axial transmission mechanism has an axial transmission gear that meshes with the output gear.

3. The cable abrasion resistance testing device as described in claim 2, characterized in that: The clutch mechanism includes a clutch gear for meshing with the output gear, a shaft for mounting the clutch gear, a mounting plate for mounting the shaft, and a locking pin for fixing the position of the shaft. The clutch gear is rotatably mounted on the shaft. There are two mounting plates, located on both sides of the clutch gear. The shaft slides on the two mounting plates, and the shaft slides on the mounting plates, causing the clutch gear to slide. The shaft is provided with a clutch locking hole and a meshing locking hole for cooperating with the locking pin. When the locking pin is inserted into the clutch locking hole, the clutch gear simultaneously disengages from both the output gear and the circumferential transmission gear. When the locking pin is inserted into the meshing locking hole, the clutch gear simultaneously meshes with both the output gear and the circumferential transmission gear.

4. The cable abrasion resistance testing device as described in claim 3, characterized in that: The circumferential transmission mechanism includes a circumferential transmission gear for meshing with a clutch gear, a gear mounting seat for mounting the circumferential transmission gear, a drive column for mounting the circumferential transmission gear, and a rocker arm for driving the first rotating shaft to reciprocate. The axial transmission gear is mounted on the gear mounting seat via a gear shaft. The rocker arm is fixed on the first rotating shaft. The drive column passes through the rocker arm and is eccentrically positioned on the circumferential transmission gear.

5. The cable abrasion resistance testing device as described in claim 2, characterized in that: The axial transmission mechanism includes an adjustment mounting base for mounting the adjustment mechanism, an axial transmission rod for mounting the adjustment mounting base, a support base for supporting the axial transmission rod, a drive shaft for driving the axial transmission rod to reciprocate along the cable axis on the support base, an axial transmission gear for meshing with the output gear, and second rotating shafts mounted on the axial transmission gear and the drive shaft. The two ends of the axial transmission rod are slidably mounted on the support base. The drive shaft is provided with a drive groove, and the axial transmission rod is provided with a drive rod inserted into the drive groove. The two second rotating shafts are respectively rotatably mounted on the reciprocating drive mounting base.

6. The cable abrasion resistance testing device as described in claim 5, characterized in that: The drive rod is fixed to the axial transmission rod by screws.

7. The cable abrasion resistance testing device as described in claim 1, characterized in that: The fixing mechanism includes a movable clamp and a fixed clamp for fixing the cable together, an adjusting member for adjusting the position of the movable clamp, and a fixed seat for installing the fixed clamp. The fixed seat is installed on the circumferential transmission mechanism, the adjusting member is screwed on the fixed seat, the adjusting member is inserted into the movable clamp, and the adjusting member rotates to drive the movable clamp to rise and fall.

8. The cable abrasion resistance testing device as described in claim 7, characterized in that: The movable clamp is provided with a slot, and the lower end of the adjusting member is inserted into the slot.

9. The cable abrasion resistance testing device as described in claim 7, characterized in that: The surfaces of the movable clamping plate and the fixed clamping plate opposite each other are provided with anti-slip teeth.

10. The cable abrasion resistance testing device as described in claim 1, characterized in that: The adjustment mechanism is an electric push rod.

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