Cable torsion test equipment

Abstract

The invention belongs to the technical field of cable testing, and particularly relates to cable torsion testing equipment which comprises a machine body, door plates are symmetrically and rotatably connected to the outer wall of the machine body, a first locking box and a second locking box are oppositely arranged in the machine body, and an ultrasonic detector is fixedly installed on the inner wall of the machine body. The ultrasonic detector is arranged on one side of the first lock fixing box and the second lock fixing box, and a shaft block is arranged between the first lock fixing box and the second lock fixing box. One end of a cable penetrates through the stroking blocks to be placed in the first fixing and locking box, the stroking blocks in the groove box can be pushed to extrude the reset springs to move on the sliding limiting rods, and when one end of the cable is fixed in the first fixing and locking box, the multiple stroking blocks can be always attached to the outer wall of the cable through elastic pushing of the reset springs; and then, the shaft block can be pushed to move towards the second fixing and locking box outside the cable, and a stroking block in the shaft block can perform stroking operation on the surface of the cable through elastic pushing, so that the surface of the cable is smoothened.

Description

Technical Field

[0001] This invention belongs to the field of cable testing technology, specifically a cable torsion testing device. Background Technology

[0002] A cable is a carrier for transmitting electrical energy or signals, which is formed by stranding or extruding conductors, insulation layers, sheaths and auxiliary components according to a certain process. Its core characteristics are regular structure and strong protection performance. It can work stably in complex environments, such as underground, underwater, high temperature, and strong electromagnetic interference, and is more suitable for long-distance, high-power and high-reliability transmission needs.

[0003] A patent application with publication number CN111337338A discloses a fatigue testing device for repeatedly winding and unwinding optical cables. The device can efficiently, conveniently and easily simulate the repeated winding and unwinding process of an optical cable wound on a drum under actual working tensile force, which helps to observe the state of the optical cable after the test and comprehensively evaluate the fatigue resistance of the optical cable.

[0004] In current technology, when conducting torsion tests on cables, slight bending or unevenness may occur during the test installation due to the inherent toughness of the cables. During the torsion process, the cable insulation layer may crack and the conductor filaments may break, shortening the torsion fatigue life and thus affecting the test results.

[0005] Therefore, the present invention provides a cable torsion testing device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The cable torsion testing equipment of the present invention includes a body, a door panel symmetrically and rotatably connected to the outer wall of the body, a locking box one and a locking box two arranged opposite to each other inside the body, an ultrasonic detector fixedly installed on the inner wall of the body, the ultrasonic detector being placed on one side of the locking box one and the locking box two, a shaft block arranged between the locking box one and the locking box two, a plurality of visual sensors fixedly installed on the inner wall of the shaft block, a cable straightening assembly arranged inside the shaft block, the cable straightening assembly including a straightening block, the cable straightening assembly being used to drive the straightening block to straighten the cable, a point bending assembly arranged outside the shaft block, the point bending assembly including a push rod, the point bending assembly being used to drive the cable to bend at multiple angles through the push rod when performing a torsion test on the cable.

[0008] Preferably, the winding assembly further includes multiple slot boxes and winding blocks. Multiple slot boxes are fixedly installed on the inner wall of the shaft block. Multiple winding blocks are slidably connected to the inner walls of multiple push rod slot boxes. Limited sliding rods are fixedly installed on the inner walls of multiple push rod slot boxes. The inner walls of multiple push rod winding blocks are slidably connected to the outer walls of multiple limited sliding rods. Return springs are provided between the outer walls of multiple winding blocks and the inner walls of multiple slot boxes. Multiple return springs are positioned outside the multiple limited sliding rods. Multiple vision sensors are positioned between multiple slot boxes. Both ends of multiple winding blocks are formed into inclined sliding surfaces.

[0009] Preferably, guide arc plates are symmetrically fixedly installed on the inner wall of the machine body. Guide threads are provided on the inner walls of both guide arc plates. A helical ring shaft is provided between the two guide arc plates. A shaft bracket is provided on the outside of the shaft block. The outer wall of the shaft bracket is fixedly connected to the inner ring wall of the helical ring shaft. A grooved ring is slidably provided on the inner wall of the shaft bracket. Multiple electric sliders are slidably provided inside the grooved ring. The outer walls of the multiple electric sliders are fixedly connected to the inner wall of the helical ring shaft. The outer wall of the helical ring shaft can be slidably connected to the inner walls of the two guide threads.

[0010] Preferably, the inner wall structure of the first and second locking boxes is the same. The second locking box has symmetrically slidingly arranged solid blocks inside. The inner wall of the second locking box has two hydraulic rods symmetrically fixedly installed. The output ends of the four hydraulic rods are fixedly connected to the outer walls of the two solid blocks in pairs. The second locking box is fixedly installed on the bottom of the inner wall of the machine body.

[0011] Preferably, the inner walls of both solid blocks are provided with multiple slots, each slot being tooth-shaped, and the outer walls of each slot are covered with soft pads. The center positions of the two hydraulic rods and the center position of the shaft block are located on the same horizontal line.

[0012] Preferably, a guide ring is fixedly installed on the inner wall of the machine body, and multiple rotary sliders are slidably arranged inside the guide ring. The outer walls of the multiple rotary sliders are fixedly connected to the outer wall of the second locking box, and the outer wall of the second locking box is rotatably connected to the inner wall of the guide ring.

[0013] Preferably, the dot-folding assembly further includes a support rod, and there are multiple push rods and support rods. The outer walls of the multiple push rods are slidably connected to the inner walls of the multiple support rods. Multiple hinge blocks are fixedly installed on the outer wall of the shaft block. Multiple semi-ring shafts are fixedly installed on the inner wall of the shaft frame. Cover blocks are fixedly installed at both ends of the multiple semi-ring shafts. One end of the multiple support rods is hinged to the outer wall of the multiple semi-ring shafts, and one end of the multiple cover blocks is hinged to the outer wall of the multiple hinge blocks.

[0014] Preferably, electromagnets are fixedly installed on the inner walls of the plurality of cover blocks, magnetic blocks are symmetrically slidably connected to the inner walls of the plurality of support rods, and return springs are provided between the outer walls of the plurality of magnetic blocks and the inner walls of the plurality of support rods. The positions of the plurality of electromagnets can correspond to the positions of the plurality of magnetic blocks, and the outer walls of the plurality of magnetic blocks can engage with the inner walls of the plurality of cover blocks.

[0015] Preferably, each of the multiple frame poles has an electric telescopic rod fixedly installed on its inner wall, the output ends of the multiple electric telescopic rods are respectively fixedly connected to the outer walls of the multiple push rods, the outer walls of the multiple push rods are each fixedly installed with a shaft, the inner walls of the multiple frame poles are each provided with a sliding groove, and the multiple shafts are respectively slidably connected to the inner walls of the multiple sliding grooves.

[0016] Preferably, a hanging plate is fixedly installed on the inner wall of the machine body, a hanging shaft is fixedly installed on the top of the first locking box, the outer wall of the hanging shaft can be slidably connected to the inner wall of the hanging plate, and a tension spring is provided between the top of the first locking box and the bottom of the hanging plate, the tension spring being placed outside the hanging shaft.

[0017] The beneficial effects of this invention are as follows: 1. The cable torsion testing device of the present invention involves placing one end of the cable through a straightening block into a locking box. The straightening block in the box is pushed and squeezed by the return spring to move on the limiting rod. When one end of the cable is fixed in the locking box, multiple straightening blocks will always be in contact with the outer wall of the cable by the elastic push of the return spring. Then, the shaft block can be pushed to move to the locking box 2 outside the cable. The straightening blocks in the shaft block will then perform a straightening operation on the surface of the cable by elastic push, thereby smoothing the surface of the cable.

[0018] 2. The cable torsion testing equipment of the present invention, through the setting of the point bending component and the wire straightening component, can prevent the insulation layer from cracking and the conductor single wire from breaking due to the cable bending itself during torsion, thus avoiding the impact on the test results. The point bending component can bend the cable at multiple points to different degrees, which is convenient for adjusting the position of the cable for multi-point multi-angle bending and torsion tests. The two work together to make the cable torsion test more favorable.

[0019] 3. The cable torsion testing equipment of the present invention drives an electric slider to rotate within a groove ring. The electric slider then drives the shaft frame and the screw ring shaft to rotate. Through the guide threads in the two guide arc plates, the screw ring shaft rotates in the direction of the two guide threads. The screw ring shaft then drives the shaft block to rotate and move downward. The lubricating block inside the shaft block rotates and smooths the cable. On the one hand, it can push the lubricating block downward to smooth the cable. On the other hand, through the rotation and downward movement of the lubricating block, the lubricating block can also clean the surface of the cable, preventing foreign objects on the surface of the cable from affecting the torsion test of the cable.

[0020] 4. The cable torsion testing equipment of the present invention, when it is necessary to bend the cable at a specific point, moves the push rod at the corresponding point within the frame, and the push rod will move the shaft block through the hinge block. The remaining frame rods and push rods will rotate hingedly on the hinge block and the semi-circular shaft, and the push rod will pull the shaft block to move to the point. The shaft block will then pull the cable at an angle through the straightening block. With the rotation and displacement of the helical shaft on the guide arc plate, multi-point angle bending operations can be realized during cable torsion testing.

[0021] 5. The cable torsion testing equipment of the present invention, when the push rod pulls the cable to bend through the shaft block, the top end of the cable will be pulled by tension, and the cable will pull the locking box one to move downward. The locking box one will then pull the tension spring to move within the hanging plate through the hanging shaft. The downward movement of the locking box one compensates for the bending angle of the cable, so that both ends of the cable are always in a taut state when bending, which is convenient for the torsion test of the cable. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is an overall diagram of the invention; Figure 2 This is a main body diagram of the present invention; Figure 3 This is a schematic diagram of the structure at the helical ring shaft in this invention; Figure 4 This is a schematic diagram of the structure of the guide arc plate in this invention; Figure 5 This is a schematic diagram of the structure of the shaft frame in this invention; Figure 6 This is a schematic diagram of the solid block in this invention; Figure 7 This is a schematic diagram of the structure of the squeegee in this invention; Figure 8 This is a schematic diagram of the structure at the hinge block in this invention; Figure 9This is a schematic diagram of the push rod structure in this invention.

[0024] In the diagram: 1. Body; 101. Door panel; 2. Locking box one; 3. Screw ring shaft; 301. Shaft bracket; 302. Electric slider; 4. Locking box two; 401. Hydraulic rod; 402. Fixed block; 403. Bayonet; 5. Ultrasonic detector; 6. Guide arc plate; 7. Hanging plate; 701. Tension spring; 702. Hanging shaft; 8. Guide ring; 801. Rotary slider; 9. Shaft block; 901. Groove box; 902. Sliding block; 903. Limited slide rod; 904. Return spring; 10. Frame rod; 1001. Push rod; 1002. Electric telescopic rod; 1003. Shaft rod; 1004. Slide groove; 11. Semi-ring shaft; 1101. Cover block; 1102. Electromagnet; 1103. Magnetic block; 1104. Return spring; 12. Hinge block; 13. Vision sensor. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figures 1 to 9 As shown in the embodiment of the present invention, a cable torsion testing device includes a body 1. A door panel 101 is symmetrically rotatably connected to the outer wall of the body 1. A locking box 1 2 and a locking box 2 4 are arranged opposite each other inside the body 1. An ultrasonic detector 5 is fixedly installed on the inner wall of the body 1. The ultrasonic detector 5 is placed on one side of the locking box 1 2 and the locking box 2 4. A shaft block 9 is arranged between the locking box 1 2 and the locking box 2 4. Multiple vision sensors 13 are fixedly installed on the inner wall of the shaft block 9. A cable straightening assembly is arranged inside the shaft block 9. The cable straightening assembly includes a straightening block 902. The cable straightening assembly is used to drive the straightening block 902 to straighten the cable. A point bending assembly is arranged outside the shaft block 9. The point bending assembly includes a push rod 1001. When the cable is subjected to a torsion test, the point bending assembly drives the cable to bend at multiple angles through the push rod 1001. Because cables have a certain degree of toughness, slight bending or unevenness may occur during test installation. During the torsion process, the insulation layer of the cable may crack and the conductor filament may break, resulting in a shortened torsional fatigue life and thus affecting the test results. When a torsion test is required on the cable, the door panel 101 is opened by rotating it. One end of the cable is then fixed in the locking box 2, and the other end is placed in the locking box 4. Once the cable is in place, the cable straightening assembly is activated. The straightening assembly within the shaft block 9 drives the straightening block 902 to move the cable from one end to the other, i.e., from the locking box 2 to the locking box 4, thus straightening it. Once the cable is straightened, the cable end placed in the locking box 4 can be fixed. This ensures that the cable is installed in a straight position when fixed between the locking boxes 2 and 4. After both ends of the cable are in place, the point-bending assembly is activated. The point-bending assembly then... The push rod 1001 drives the cable to bend at multiple angles. When the point bending component finishes bending the cable, it can drive the cable to twist. While the cable is twisting, the ultrasonic detector 5 and the vision sensor 13 will perform different defect detections on the internal and external surfaces of the cable, thereby realizing the torsion test of the cable. Through the setting of the point bending component and the straightening component, when testing the cable, the straightening component can avoid the phenomenon of insulation layer cracking and conductor single wire breakage due to the cable bending itself during torsion, which will affect the test results. The point bending component can bend the cable at multiple points to different degrees, which is convenient for adjusting the position of the multi-point multi-angle bending and torsion test of the cable. The two work together to make the torsion test of the cable more convenient.

[0027] like Figures 7 to 8 As shown, the cable straightening assembly also includes a slot box 901. There are multiple slot boxes 901 and multiple straightening blocks 902. Multiple slot boxes 901 are fixedly installed on the inner wall of the shaft block 9. Multiple straightening blocks 902 are slidably connected to the inner walls of multiple slot boxes 901. Multiple sliding rods 903 are fixedly installed on the inner walls of multiple slot boxes 901. The inner walls of multiple straightening blocks 902 are slidably connected to the outer walls of multiple sliding rods 903. A return spring 904 is provided between the outer walls of multiple straightening blocks 902 and the inner walls of multiple slot boxes 901. Multiple return springs 904 are placed outside the multiple sliding rods 903. Multiple vision sensors 13 are placed between multiple slot boxes 901. Both ends of multiple straightening blocks 902 are opened as inclined sliding surfaces. When the cable is installed, one end of the cable is passed through the straightener 902 and placed into the locking box 2. The straightener 902 in the slot box 901 is pushed and squeezed to move the return spring 904 on the sliding rod 903. When one end of the cable is fixed in the locking box 2, the multiple straighteners 902 will always be in contact with the outer wall of the cable by the elastic push of the return spring 904. Then, the shaft block 9 can be pushed to move to the locking box 4 outside the cable. The straighteners 902 in the shaft block 9 will then perform a straightening operation on the surface of the cable by elastic push, thereby straightening the surface of the cable and straightening the cable.

[0028] like Figures 4 to 8 As shown, guide arc plates 6 are symmetrically fixedly installed on the inner wall of the body 1. Guide threads are opened on the inner walls of the two guide arc plates 6. A helical ring shaft 3 is arranged between the two guide arc plates 6. A shaft bracket 301 is arranged on the outside of the shaft block 9. The outer wall of the shaft bracket 301 is fixedly connected to the inner ring wall of the helical ring shaft 3. A grooved ring is slidably arranged on the inner wall of the shaft bracket 301. Multiple electric sliders 302 are slidably arranged inside the grooved ring. The outer walls of the multiple electric sliders 302 are fixedly connected to the inner wall of the helical ring shaft 3. The outer wall of the helical ring shaft 3 can be slidably connected to the inner walls of the two guide threads. When the inner walls of multiple swivel blocks 902 are all pressed against the outer wall of the cable by the elastic push of the return spring 904, the electric slider 302 is driven to rotate in the groove ring. The electric slider 302 will drive the shaft frame 301 and the screw ring shaft 3 to rotate. Through the setting of the guide threads in the two guide arc plates 6, when the screw ring shaft 3 rotates, the screw ring shaft 3 will rotate in the opening direction of the two guide threads. The screw ring shaft 3 will drive the shaft block 9 to rotate and move downward. The swivel blocks 902 in the shaft block 9 will rotate and smooth the cable. On the one hand, it can push the swivel blocks 902 to move downward and smooth the cable. On the other hand, through the rotation and downward movement of the swivel blocks 902, the swivel blocks 902 can also clean the surface of the cable to prevent foreign objects on the surface of the cable from affecting the torsion test of the cable. It should be noted that the initial position of the screw ring shaft 3 is above the inner wall of the two guide arc plates 6.

[0029] like Figures 5 to 6 As shown, the inner wall structure of the first locking box 2 and the second locking box 4 is the same. The solid blocks 402 are symmetrically slidably arranged inside the second locking box 4. Two hydraulic rods 401 are symmetrically fixedly installed on the inner wall of the second locking box 4. The output ends of the four hydraulic rods 401 are fixedly connected to the outer wall of the two solid blocks 402 in pairs. The second locking box 4 is fixedly installed on the bottom of the inner wall of the machine body 1. When it is necessary to fix both ends of the cable, the hydraulic rod 401 is driven to move the two fixed blocks 402 relative to each other. The two fixed blocks 402 clamp one end of the cable by moving. When the inner walls of the two fixed blocks 402 are in contact with the outer wall of the cable, the hydraulic rod 401 is stopped. The cable is then clamped and fixed in the locking box 4 by the two fixed blocks 402, thereby achieving the fixing operation of the cable end and playing the role of clamping and fixing the cable.

[0030] like Figures 5 to 6 As shown, the inner walls of the two solid blocks 402 are provided with multiple slots 403, each slot 403 is tooth-shaped, and the outer walls of the multiple slots 403 are covered with soft pads. The center positions of the two hydraulic rods 401 and the center position of the shaft block 9 are on the same horizontal line. When the inner walls of the two solid blocks 402 come into contact with the cable, the latches 403 inside the two solid blocks 402 will press against the outer wall of the cable, and the latches 403 will clamp the outside of the cable. The purpose of this setting is to clamp the surface of the cable through the latches 403, which can provide secondary reinforcement to the cable end fixation and prevent the cable from coming loose due to unstable fixation when twisting, thus strengthening the fixation of the cable.

[0031] like Figures 5 to 6 As shown, a guide ring 8 is fixedly installed on the inner wall of the body 1. Multiple rotary sliders 801 are slidably arranged inside the guide ring 8. The outer walls of the multiple rotary sliders 801 are all fixedly connected to the outer wall of the locking box 2 4. The outer wall of the locking box 2 4 is rotatably connected to the inner wall of the guide ring 8. When the cable is fixed, the drive torsion slider 801 rotates within the guide ring 8, which in turn causes the locking box 2 4 to rotate within the guide ring 8. This causes the cable inside the locking box 2 4 to rotate, thus achieving the twisting operation of the cable and playing the role of twisting the cable to rotate.

[0032] like Figures 7 to 9 As shown, the dot-fold assembly also includes multiple support rods 10, push rods 1001, and support rods 10. The outer walls of the multiple push rods 1001 are slidably connected to the inner walls of the multiple support rods 10. Multiple hinge blocks 12 are fixedly installed on the outer wall of the shaft block 9. Multiple semi-ring shafts 11 are fixedly installed on the inner wall of the shaft frame 301. Cover blocks 1101 are fixedly installed at both ends of the multiple semi-ring shafts 11. One end of the multiple support rods 10 is hinged to the outer wall of the multiple semi-ring shafts 11, and one end of the multiple cover blocks 1101 is hinged to the outer wall of the multiple hinge blocks 12. When it is necessary to bend the cable at specific points, the push rod 1001 at the corresponding point is pulled to move within the support rod 10. The push rod 1001 will then pull the shaft block 9 to move through the hinge block 12. The remaining support rods 10 and push rod 1001 will then be hinged and rotated on the hinge block 12 and the semi-circular shaft 11. The push rod 1001 will then pull the shaft block 9 to move towards the point. The shaft block 9 will then pull the cable to bend at an angle through the straightening block 902. With the screw ring shaft 3 rotating and shifting on the guide arc plate 6, multi-point angle bending operations can be achieved during cable torsion testing, thus achieving the function of bending the cable. It should be noted that in the initial state, the shaft block 9 is placed at the internal center position of the vision sensor 13. The length between the semi-circular shaft 11 and the support rod 10 needs to be designed according to the actual working scenario.

[0033] like Figures 7 to 9As shown, electromagnets 1102 are fixedly installed on the inner walls of multiple cover blocks 1101, and magnetic blocks 1103 are symmetrically slidably connected to the inner walls of multiple support rods 10. Return springs 1104 are provided between the outer walls of multiple magnetic blocks 1103 and the inner walls of multiple support rods 10. The positions of multiple electromagnets 1102 can correspond to the positions of multiple magnetic blocks 1103, and the outer walls of multiple magnetic blocks 1103 can engage with the inner walls of multiple cover blocks 1101. When it is necessary to push the push rod 1001 at the corresponding point to move within the support rod 10, the electromagnets 1102 at other points are driven to stop working. The electromagnets 1102 will then stop their magnetic attraction to the magnetic block 1103. The return spring 1104 will then pull the magnetic block 1103 to reset, and the magnetic block 1103 will slide out from the cover block 1101. This provides a moving basis for the hinged movement of the support rod 10 and push rod 1001 at other points on the semi-annular shaft 11 and hinge block 12. At the same time, it also provides a positioning basis for the support rod 10 and push rod 1001 at the points, thus fixing the position of the support rod 10.

[0034] like Figures 7 to 9 As shown, electric telescopic rods 1002 are fixedly installed on the inner walls of multiple support rods 10. The output ends of multiple electric telescopic rods 1002 are fixedly connected to the outer walls of multiple push rods 1001. Shaft rods 1003 are fixedly installed on the outer walls of multiple push rods 1001. Slide grooves 1004 are opened on the inner walls of multiple support rods 10. Multiple shaft rods 1003 can slide in connection with the inner walls of multiple slide grooves 1004. When it is necessary to move the push rod 1001, the electric telescopic rod 1002 will pull the push rod 1001 to move. The push rod 1001 will then move through the return spring 1104 in the frame rod 10 via the shaft 1003. The push rod 1001 will then retract within the frame rod 10. The push rod 1001 will then pull the shaft block 9 towards the frame rod 10, thereby causing it to pull the cable through the shaft block 9 to perform angle bending operations, thus providing power for the movement of the semi-circular shaft 11.

[0035] like Figures 4 to 5 As shown, a hanging plate 7 is fixedly installed on the inner wall of the body 1, and a hanging shaft 702 is fixedly installed on the top of the locking box 2. The outer wall of the hanging shaft 702 can slide and connect with the inner wall of the hanging plate 7. A tension spring 701 is provided between the top of the locking box 2 and the bottom of the hanging plate 7. The tension spring 701 is placed outside the hanging shaft 702. When push rod 1001 pulls the cable to bend via shaft block 9, the top end of the cable will be pulled by tension, which will pull the locking box 2 downward. The locking box 2 will then pull the tension spring 701 to move within the hanging plate 7 via the hanging shaft 702. The downward movement of the locking box 2 will compensate for the bending angle of the cable, so that both ends of the cable are always taut when bending, which facilitates the torsion test of the cable and plays a role in compensating for the movement.

[0036] Working Principle: When a torsion test is required on the cable, the door panel 101 is opened by rotating it. One end of the cable is then fixed in the locking box 2, and the other end is placed in the locking box 4. Once the cable is in place, the cable straightening assembly is activated. The straightening assembly within the shaft block 9 drives the straightening block 902 to move the cable from one end to the other, i.e., from the locking box 2 to the locking box 4, thus straightening it. Once the cable is straightened, the cable end in the locking box 4 can be fixed. This ensures that the cable is installed straight when fixed between the locking boxes 2 and 4. After both ends of the cable are in place, the point bending assembly is activated. The push rod 1001 drives the cable to bend at multiple angles. When the point bending component finishes bending the cable, it can drive the cable to twist. While the cable is twisting, the ultrasonic detector 5 and the vision sensor 13 will detect different defects on the inside and outside of the cable, thus realizing the torsion test of the cable. With the setting of the point bending component and the straightening component, when the cable is tested, the straightening component can avoid the phenomenon of insulation layer cracking and conductor single wire breakage due to the cable bending itself during torsion, which will affect the test results. The point bending component can bend the cable at multiple points to different degrees, which is convenient for adjusting the position of the multi-point multi-angle bending and torsion test of the cable. The two work together to make the torsion test of the cable more convenient. When the cable is installed, by passing one end of the cable through the straightener 902 into the locking box 2, the straightener 902 in the slot box 901 will be pushed and squeezed to move the return spring 904 on the sliding rod 903. When one end of the cable is fixed in the locking box 2, the multiple straighteners 902 will always be in contact with the outer wall of the cable by the elastic push of the return spring 904. Then, the shaft block 9 can be pushed to move to the locking box 4 outside the cable. The straighteners 902 in the shaft block 9 will then perform a straightening operation on the surface of the cable by the elastic push, thereby straightening the surface of the cable and straightening the cable. When the inner walls of multiple swivel blocks 902 are all pressed against the outer wall of the cable by the elastic push of the return spring 904, the electric slider 302 is driven to rotate in the groove ring. The electric slider 302 will drive the shaft frame 301 and the screw ring shaft 3 to rotate. Through the setting of the guide threads in the two guide arc plates 6, when the screw ring shaft 3 rotates, the screw ring shaft 3 will rotate in the opening direction of the two guide threads. The screw ring shaft 3 will drive the shaft block 9 to rotate and move downward. The swivel blocks 902 in the shaft block 9 will rotate and smooth the cable. On the one hand, it can push the swivel blocks 902 to move downward and smooth the cable. On the other hand, through the rotation and downward movement of the swivel blocks 902, the swivel blocks 902 can also clean the surface of the cable to prevent foreign objects on the surface of the cable from affecting the torsion test of the cable, and play the role of slag removal. When it is necessary to fix both ends of the cable, the hydraulic rod 401 is driven to move the two fixed blocks 402 relative to each other. The two fixed blocks 402 clamp one end of the cable by moving. When the inner walls of the two fixed blocks 402 are in contact with the outer wall of the cable, the hydraulic rod 401 is stopped. The cable is then clamped and fixed in the locking box 4 by the two fixed blocks 402, thereby achieving the fixing operation of the cable end and playing the role of clamping and fixing the cable. When the inner walls of the two solid blocks 402 come into contact with the cable, the latches 403 inside the two solid blocks 402 will press against the outer wall of the cable, and the latches 403 will clamp the outside of the cable. The purpose of this setting is to clamp the surface of the cable through the latches 403, which can provide secondary reinforcement to the cable end fixation and prevent the cable from coming loose due to unstable fixation when twisting, thus strengthening the fixation of the cable. When the cable is fixed, the drive torsion slider 801 rotates within the guide ring 8, which in turn causes the locking box 2 4 to rotate within the guide ring 8. This causes the cable inside the locking box 2 4 to rotate, thus achieving the twisting operation of the cable and playing the role of twisting the cable to rotate. When it is necessary to bend the cable at a specific point, the push rod 1001 at the corresponding point is pulled to move within the support rod 10. The push rod 1001 will then pull the shaft block 9 to move through the hinge block 12. The remaining support rods 10 and push rod 1001 will then be hinged and rotated on the hinge block 12 and the semi-circular shaft 11. The push rod 1001 will then pull the shaft block 9 to move towards the point. The shaft block 9 will then pull the cable to bend at an angle through the straightening block 902. With the screw ring shaft 3 rotating and shifting on the guide arc plate 6, multi-point angle bending operations can be achieved during cable torsion tests, thus achieving the function of bending the cable. When it is necessary to push the push rod 1001 at the corresponding point to move within the support rod 10, the electromagnets 1102 at other points are driven to stop working. The electromagnets 1102 will stop their magnetic attraction to the magnetic block 1103, and the return spring 1104 will pull the magnetic block 1103 to reset. The magnetic block 1103 will then slide out from the cover block 1101, thus providing a moving basis for the hinged movement of the support rod 10 and push rod 1001 at other points on the semi-annular shaft 11 and hinge block 12. At the same time, it also provides a positioning basis for the support rod 10 and push rod 1001 at the points, which serves to fix the position of the support rod 10. When it is necessary to push the push rod 1001 to move, the electric telescopic rod 1002 will pull the push rod 1001 to move. The push rod 1001 will then move through the return spring 1104 in the frame rod 10 via the shaft 1003. The push rod 1001 will then retract within the frame rod 10. The push rod 1001 will then pull the shaft block 9 towards the frame rod 10, thereby causing it to pull the cable through the shaft block 9 to perform angle bending operations, thus providing power for the movement of the semi-circular shaft 11. When push rod 1001 pulls the cable to bend via shaft block 9, the top end of the cable will be pulled by tension, which will pull the locking box 2 downward. The locking box 2 will then pull the tension spring 701 to move within the hanging plate 7 via the hanging shaft 702. The downward movement of the locking box 2 will compensate for the bending angle of the cable, so that both ends of the cable are always taut when bending, which facilitates the torsion test of the cable and plays a role in compensating for the movement.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable torsion test apparatus characterized by: Including the body (1), the outer wall of the body (1) is symmetrically connected with the door plate (101), the inside of the body (1) is opposite and is provided with the lock box one (2) and the lock box two (4), the inner wall of the body (1) is fixedly installed with the ultrasonic detector (5), the ultrasonic detector (5) is placed on the one side of the lock box one (2) and the lock box two (4), the lock box one (2) and the lock box two (4) are provided with the shaft block (9), the inner wall of the shaft block (9) is fixedly installed with a plurality of visual sensors (13), the inside of the shaft block (9) is provided with a line straightening assembly, the line straightening assembly includes a straightening block (902), the line straightening assembly is used to drive the straightening block (902) to straighten the cable, the outside of the shaft block (9) is provided with a point folding assembly, the point folding assembly includes a push rod (1001), when the point folding assembly is used for the cable to carry out the torsion test, the point folding assembly drives the cable to carry out multi-point angle bending through the push rod (1001).

2. A cable torsion testing apparatus according to claim 1, wherein: The line straightening assembly further includes a groove box (901), the number of the groove box (901) and the straightening block (902) is multiple, a plurality of the groove box (901) are fixedly installed on the inner wall of the shaft block (9), a plurality of the straightening block (902) are respectively and slidably connected with the inner wall of a plurality of the groove box (901), the inner wall of a plurality of the groove box (901) is fixedly installed with a plurality of limit sliding rods (903), the inner wall of a plurality of the straightening block (902) is respectively and slidably connected with the outer wall of a plurality of the limit sliding rods (903), a plurality of the reset spring (904) is respectively arranged between the outer wall of a plurality of the straightening block (902) and the inner wall of a plurality of the groove box (901), a plurality of the visual sensor (13) is respectively arranged between a plurality of the groove box (901), and the both ends of a plurality of the straightening block (902) are provided with inclined sliding surfaces.

3. A cable torsion testing apparatus according to claim 2, wherein: The inner wall of the body (1) is symmetrically fixedly installed with a guide arc plate (6), the inner wall of the two guide arc plates (6) is provided with a guide screw, the screw ring shaft (3) is arranged between the two guide arc plates (6), the outer wall of the shaft support (301) is fixedly connected with the inner ring wall of the screw ring shaft (3), the inner wall of the shaft support (301) is slidably provided with a groove ring, a plurality of electric sliding blocks (302) are slidably arranged in the inner part of the groove ring, the outer wall of a plurality of the electric sliding blocks (302) is fixedly connected with the inner wall of the screw ring shaft (3), and the outer wall of the screw ring shaft (3) can be slidably connected with the inner wall of the two guide screws.

4. A cable torsion testing apparatus according to claim 3, wherein: The inner wall structure of the first solid locking box (2) and the second solid locking box (4) is the same, the inside of the second solid locking box (4) is symmetrically provided with a solid block (402), the inner wall of the second solid locking box (4) is fixedly provided with two hydraulic rods (401), the output ends of the four hydraulic rods (401) are fixedly connected with the outer walls of the two solid blocks (402), and the second solid locking box (4) is fixedly installed on the inner wall bottom of the machine body (1).

5. A cable torsion testing apparatus according to claim 4, wherein: The inner walls of the two solid blocks (402) are provided with a plurality of clamping holes (403), the clamping holes (403) are all clamping teeth, the outer walls of the clamping holes (403) are all covered with soft pads, and the center positions of the two hydraulic rods (401) and the shaft block (9) are located on the same horizontal line.

6. A cable torsion testing apparatus according to claim 5, wherein: The inner wall of the machine body (1) is fixedly provided with a guide ring (8), the inside of the guide ring (8) is slidably provided with a plurality of rotary sliding blocks (801), the outer walls of the rotary sliding blocks (801) are fixedly connected with the outer wall of the second solid locking box (4), and the outer wall of the second solid locking box (4) is rotationally connected with the inner wall of the guide ring (8).

7. A cable torsion testing apparatus according to claim 6, wherein: The point folding assembly further comprises a frame rod (10), the number of the push rods (1001) and the frame rods (10) is multiple, the outer walls of the plurality of push rods (1001) are slidably connected with the inner walls of the plurality of frame rods (10), the outer wall of the shaft block (9) is fixedly provided with a plurality of hinged blocks (12), the inner wall of the shaft frame (301) is fixedly provided with a plurality of half-ring shafts (11), the two ends of the plurality of half-ring shafts (11) are fixedly provided with cover blocks (1101), one end of the plurality of frame rods (10) is respectively hinged with the outer walls of the plurality of half-ring shafts (11), and one end of the plurality of cover blocks (1101) is respectively hinged with the outer walls of the plurality of hinged blocks (12).

8. A cable torsion testing apparatus according to claim 7, wherein: The inner walls of the plurality of cover blocks (1101) are fixedly provided with electromagnets (1102), the inner walls of the plurality of frame rods (10) are symmetrically slidably connected with magnetic blocks (1103), the outer walls of the plurality of magnetic blocks (1103) and the inner walls of the plurality of frame rods (10) are both provided with return springs (1104), the positions of the plurality of electromagnets (1102) can correspond to the positions of the plurality of magnetic blocks (1103), and the outer walls of the plurality of magnetic blocks (1103) can be clamped with the inner walls of the plurality of cover blocks (1101).

9. A cable torsion testing apparatus according to claim 8, wherein: The inner walls of the plurality of frame rods (10) are fixedly provided with electric telescopic rods (1002), the output ends of the plurality of electric telescopic rods (1002) are respectively fixedly connected with the outer walls of the plurality of push rods (1001), the outer walls of the plurality of push rods (1001) are fixedly provided with shaft rods (1003), the inner walls of the plurality of frame rods (10) are provided with sliding grooves (1004), and the plurality of shaft rods (1003) can be slidably connected with the inner walls of the plurality of sliding grooves (1004).

10. A cable torsion testing apparatus according to claim 9, wherein: The inner wall of the machine body (1) is fixedly provided with a hanging plate (7), the top of the first locking box (2) is fixedly provided with a hanging shaft (702), the outer wall of the hanging shaft (702) can be slidably connected with the inner wall of the hanging plate (7), a tension spring (701) is arranged between the top of the first locking box (2) and the bottom of the hanging plate (7), and the tension spring (701) is arranged outside the hanging shaft (702).

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