A test device for high polymer resin wire breakdown voltage

Abstract

The application belongs to the technical field of high polymer resin detection, and particularly relates to a testing device for wire breakdown voltage of high polymer resin, which comprises a base, an insulating base plate is fixedly arranged at the center of the upper wall of the base, a clamping posture adjusting assembly is movably arranged on the upper wall of the insulating base plate, a high-voltage electrode lifting frame is arranged at the end of the upper wall of the base, a high-voltage breakdown detection unit is arranged on the output end of the upper end of the high-voltage electrode lifting frame, and an insulating protective cover is arranged on the edge of the upper wall of the base. The testing device for wire breakdown voltage of high polymer resin is provided, the high polymer resin can be clamped and fixed on the profiling clamping assembly, the laying posture of bending, stretching and twisting in actual use is simulated, so that the simulation of various laying postures of the high polymer resin in the real scene is realized, and the technical effect that the breakdown voltage test is automatically completed is realized in cooperation with the high-voltage breakdown detection unit, the voltage acquisition module and the breakdown positioning sensor.

Description

Technical Field

[0001] This invention belongs to the field of high polymer resin testing technology, specifically referring to a testing device for the breakdown voltage of high polymer resin wires. Background Technology

[0002] High-polymer resin is a core component in power transmission and electrical equipment manufacturing that ensures power transmission safety and insulation performance. The breakdown voltage of its insulation layer is directly related to the stable operation of the power system and the safety of electricity use. Therefore, after the high-polymer resin is produced and processed, it must undergo a series of strict breakdown voltage tests to ensure that its insulation performance meets the standards.

[0003] Traditional breakdown voltage tests for high polymer resins often use fixed electrodes, which can only test the insulation performance of polymer resins in a single flat state. It is difficult to simulate various working conditions such as bending, stretching, and twisting of polymer resins in actual applications. Furthermore, the determination of breakdown points and the acquisition of voltage data rely on manual recording, which is time-consuming and labor-intensive. The detection accuracy and repeatability are poor, and the testing process lacks flexibility and automation.

[0004] Therefore, it is necessary to propose a test device for the breakdown voltage of high polymer resin wires to solve the technical problems existing in the current high polymer resin breakdown voltage test process. Summary of the Invention

[0005] To address the aforementioned existing problems, this invention provides a testing device for the breakdown voltage of high polymer resin conductors. The high polymer resin can be clamped and fixed on a contour clamping assembly to simulate the bending, stretching, and twisting laying postures in actual use, thereby simulating various laying postures of high polymer resin in real-world scenarios. Combined with a high-voltage breakdown detection unit, a voltage acquisition module, and a breakdown positioning sensor, the device automatically completes the breakdown voltage test.

[0006] The technical solution adopted by this invention is as follows: A testing device for the breakdown voltage of high polymer resin conductors includes a base, an insulating pad fixedly disposed at the center of the upper wall of the base, a clamping posture adjustment assembly movably disposed on the upper wall of the insulating pad, a high voltage electrode lifting frame disposed at the end of the upper wall of the base, a high voltage breakdown detection unit disposed at the upper end of the output end of the high voltage electrode lifting frame, an insulating protective cover disposed at the edge of the upper wall of the base, the insulating protective cover surrounding the clamping posture adjustment assembly, the clamping posture adjustment assembly including a movable slide, a main support rotating frame, a contour clamping seat, a tension detection push rod and an end fixing clamp, the movable slide being movably disposed on the upper wall of the insulating pad, a deflection main gear being rotatably disposed at the center of the upper wall of the movable slide, and the main support rotating frame being fixedly disposed on... At the center of the upper wall of the deflecting main gear, a universal adjusting ball is fixedly provided at the upper end of the main support frame. The contour clamping seat is engaged and movably disposed above the universal adjusting ball. The contour clamping seat includes a rigid support base, a breakdown positioning sensor, and an insulating contour skin. The rigid support base is engaged and movably disposed above the universal adjusting ball. The breakdown positioning sensor is covered on the upper surface of the rigid support base. The insulating contour skin is covered on the outer surface of the breakdown positioning sensor. A ball groove is opened at the center of the lower wall of the rigid support base. The universal adjusting ball is engaged and disposed in the ball groove. The tension detection push rod is disposed at the front end of the lower wall of the rigid support base. The end fixing clamp is disposed at the lower end of the output end of the tension detection push rod. The end fixing clamp is movably disposed below the contour clamping seat.

[0007] Furthermore, a high-polymer resin is clamped and fixed on the outer side of the contour clamping seat, and the two ends of the high-polymer resin are respectively fixed to the end fixing clamp. The left and right ends of the lower wall of the contour clamping seat are symmetrically provided with pitch rotation shafts, and a roll control gear is connected between the pitch rotation shafts. The upper ends of the left and right side walls of the main support frame are provided with a gear limiting groove. The roll control gear is slidably disposed in the gear limiting groove. A pitch control motor is provided on the pitch rotation shaft. The output end of the pitch control motor is connected to the pitch rotation shaft. A roll control gear is rotatably disposed inside the upper end of the main support frame. The roll control gear is driven by the roll control motor. The roll control gear is meshed with the roll control gear.

[0008] Furthermore, a tension detector is provided on the side of the tension detection push rod near the ball groove, and the output end of the tension detector is connected to the end fixing clamp. A protective shell is provided on the side of the tension detection push rod away from the ball groove. The protective shell surrounds the tension detection push rod and the tension detector. A deflection control motor is fixedly provided on the side wall of the movable slide. A deflection control gear is provided on the output end of the deflection control motor. The deflection control gear is meshed with the deflection main gear. A moving block is fixedly provided on the rear side wall of the movable slide.

[0009] Furthermore, the high-voltage breakdown detection unit includes a support arm, a high-voltage electrode frame, a high-voltage lead wire, and a spherical high-voltage electrode. The support arm is fixedly mounted on the upper end of the output end of the high-voltage electrode lifting frame. The high-voltage electrode frame is fixedly mounted on the side wall of the support arm near the high-voltage electrode lifting frame. Insulating roller frames are symmetrically arranged at the front and rear ends of the upper wall of the support arm. A first take-up roller is rotatably mounted on the insulating roller frame near the high-voltage electrode lifting frame, and a second take-up roller is rotatably mounted on the insulating roller frame away from the high-voltage electrode lifting frame. The high-voltage lead wire is wound around the side walls of the first and second take-up rollers. The end of the high-voltage lead wire passes through the upper wall of the support arm away from the high-voltage electrode lifting frame. The spherical high-voltage electrode is located at the end of the high-voltage lead wire and is movably positioned below the end of the support arm away from the high-voltage electrode lifting frame. A displacement detector is provided at the rotation shaft of the first take-up roller. The input end of the displacement detector is connected to the rotation shaft of the first take-up roller, and the displacement detector is fixedly mounted on the insulating roller frame.

[0010] Furthermore, a control wheel is coaxially fixed at the center of the end face of the first take-up roller, and a limiting rod is fixedly fixed on the side wall of the control wheel. The control wheel is rotatably positioned above the high-voltage electrode frame. A telescopic control push rod and a high-voltage traction motor are fixedly mounted on the upper wall of the high-voltage electrode frame. A driven gear is rotatably mounted at the output end of the telescopic control push rod, and a driving gear is mounted at the output end of the high-voltage traction motor. The thickness of the driving gear is greater than that of the driven gear. The driving gear meshes with the driven gear. A stop rod is fixedly mounted on the end face of the driven gear. One end of the stop rod is fixedly connected to the center of the end face of the driven gear. The stop rod is in movable contact with the limiting rod. When the telescopic control push rod drives the driven gear away from the control wheel, the stop rod does not contact the limiting rod.

[0011] Furthermore, the insulating protective cover includes a fixed insulating plate, a supporting cover body, a movable frame, and a folded insulating cloth. The supporting cover body is fixedly mounted on the upper wall of the base and surrounds the clamping posture adjustment component. The fixed insulating plates are fixedly mounted in pairs at the front and rear ends of the supporting cover body. The movable frame is movably mounted above the left and right ends of the supporting cover body. The folded insulating cloth is connected between the movable frame and the supporting cover body.

[0012] Furthermore, insulating support columns are fixedly provided on the left and right edges of the fixed insulating plate, and movable slots are provided on the left and right side walls of the insulating support columns. Side slots are provided on the front and rear side walls of the insulating support columns. The movable slots and side slots are connected through each other. Sliding blocks are fixedly provided at both ends of the movable frame. The sliding blocks are slidably engaged and rotatably disposed within the movable slots. A limiting threaded rod is rotatably embedded in the side wall of the sliding block. The limiting threaded rod is threadedly connected to the sliding block. The limiting threaded rod is slidably disposed within the side slots. A pressure plate is fixedly provided at the end of the limiting threaded rod. The pressure plate contacts the side wall of the insulating support column. A knob is fixedly provided on the side wall of the pressure plate.

[0013] Furthermore, the upper wall of the insulating pad is provided with a first insulating threaded rod and a guide slide rod on its left and right edges, respectively. The first insulating threaded rod is rotatably mounted. A movable guide rail is slidably mounted above the first insulating threaded rod and the guide slide rod. A second insulating threaded rod is rotatably mounted on the movable guide rail. Threaded sleeves are fixedly mounted at the left and right ends of the lower wall of the movable guide rail. The threaded sleeves are respectively fitted onto the first insulating threaded rod and the guide slide rod. The threaded sleeves are threadedly connected to the first insulating threaded rod. The movable block is fitted onto the second insulating threaded rod. The movable block is threadedly connected to the second insulating threaded rod.

[0014] Furthermore, the end of the first insulating threaded rod is provided with a first drive motor, the output end of the first drive motor is connected to the end of the first insulating threaded rod, the end of the second insulating threaded rod is provided with a second drive motor, the second drive motor is fixedly mounted on the end of the moving guide rail, and the output end of the second drive motor is connected to the end of the second insulating threaded rod.

[0015] Furthermore, a main controller is provided on one side of the base, and an operation panel is provided on the upper end of the main controller. The first drive motor, the second drive motor, the high-voltage electrode lifting frame, the deflection control motor, the roll control motor, the pitch control motor, the breakdown positioning sensor, the tension detection push rod, the tension detector, the displacement detector, the high-voltage traction motor, the telescopic control push rod, and the operation panel are all electrically connected to the main controller.

[0016] Furthermore, the main controller adopts Siemens S7-1200, the breakdown positioning sensor adopts a distributed electric field sensing array, the displacement detector adopts a precision rotary encoder, and the folded insulating cloth adopts high-strength flame-retardant insulating cloth.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows:

[0018] (1) The high polymer resin can be clamped and fixed on the conformal clamping seat, and both ends are fixed to the end fixing clamp to simulate the actual laying posture. The tension detection push rod can drive the end fixing clamp to move, thereby stretching the polymer resin. The tension detector can detect the tension on the polymer resin. When the polymer resin insulation layer is deformed or damaged, the maximum withstand tension of the polymer resin can be obtained.

[0019] (2) The clamping posture adjustment component can simulate various laying postures of high polymer resin. The universal adjustment ball allows the contour clamping seat to rotate flexibly in multiple directions. The roll control motor, pitch control motor and yaw control motor drive the clamping seat to complete the roll, pitch and yaw actions respectively, truly restoring the bending, twisting and tilting conditions in actual use.

[0020] (3) The high voltage electrode lifting frame can drive the high voltage breakdown detection unit to rise and fall. The distance between the spherical high voltage electrode and the polymer resin can be adjusted according to the test requirements to accurately control the breakdown voltage application conditions and improve the test accuracy.

[0021] (4) The spherical high-voltage electrode can be automatically raised, lowered and positioned. The displacement detector monitors the electrode falling distance in real time. The main controller automatically controls the start and stop of the electrode to avoid excessive impact damage to the polymer resin and electrode. The electrode is automatically recycled after the test is completed. The whole process is automated and requires no manual intervention.

[0022] (5) The contour clamp has a built-in breakdown positioning sensor, which can collect the breakdown voltage, electric field distribution and breakdown point position in real time. The data is uploaded to the control panel in a synchronous manner to realize quantitative testing of breakdown voltage and accurate positioning of breakdown point, and objectively evaluate insulation performance.

[0023] (6) The first drive motor and the second drive motor can adjust the clamping position of the polymer resin, so that the spherical high voltage electrode can perform breakdown tests on different sections and different postures of the polymer resin, thus meeting the testing requirements of multiple positions and multiple working conditions.

[0024] (7) The high-voltage traction motor can be used with the horizontal deflection of the electrodes to realize the side and oblique breakdown test of polymer resin, enriching the test dimensions and more comprehensively reflecting the insulation reliability of high polymer resin.

[0025] (8) The insulating protective cover and folded insulating cloth effectively isolate the high voltage test area to prevent arc leakage and electric shock risk. The movable frame can flexibly adjust the opening to adapt to different test postures, and has strong safety protection. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a test device for the breakdown voltage of a high polymer resin wire provided by the present invention;

[0027] Figure 2 A schematic diagram of the structure of a test device for the breakdown voltage of a high polymer resin conductor provided by the present invention, without the insulating protective cover;

[0028] Figure 3 A schematic diagram of the connection structure between the high-polymer resin and the clamping posture adjustment component;

[0029] Figure 4 A schematic diagram of the connection structure of the contour clamping seat, ball groove, tension detection push rod, end fixing clamp, universal adjusting ball and main support frame;

[0030] Figure 5 A cross-sectional view of the contour clamping seat, universal adjusting ball, pitch rotation shaft, roll control gear, gear limit groove and roll control gear;

[0031] Figure 6 This is a schematic diagram of the high-voltage breakdown detection unit;

[0032] Figure 7 This is a structural diagram of the insulating roller frame, control wheel, limit rod, stop rod, driven gear, telescopic control push rod, drive gear, and high-voltage traction motor.

[0033] Figure 8 A schematic diagram of the connection structure of the high-voltage electrode lifting frame and support arm;

[0034] Figure 9 This is a schematic diagram of the structure of the insulating protective cover;

[0035] Figure 10 This is a schematic diagram of the connection structure of the movable frame, sliding block, limit threaded rod, pressure plate, knob, insulating support column, side seam, and moving seam.

[0036] Among them, 1. Base, 11. Insulating pad, 12. First insulating threaded rod, 121. First drive motor, 13. Guide slide rod, 14. Moving guide rail, 141. Threaded sleeve, 15. Second insulating threaded rod, 151. Second drive motor, 16. High-voltage electrode lifting frame, 2. Clamping posture adjustment assembly, 21. Moving slide, 211. Deflection main gear, 212. Deflection control motor, 213. Deflection control gear, 22. 221. Main support frame; 222. Moving block; 223. Gear limit groove; 224. Universal adjusting ball; 23. Roll control gear; 24. Contouring clamp; 25. Rigid support base; 26. Ball groove; 27. Pitch rotation shaft; 28. Roll control gear; 29. ​​Pitch control motor; 20. Permeation positioning sensor; 20. Insulating contour skin; 21. Tension detection push rod; 22. Tension. Detector, 25. End clamp, 26. Protective housing, 3. High-voltage breakdown detection unit, 31. Support arm, 311. Insulating roller frame, 312. First take-up roller, 3121. Control wheel, 3122. Limiting rod, 3123. Displacement detector, 313. Second take-up roller, 32. High-voltage electrode frame, 321. High-voltage traction motor, 3211. Drive gear, 322. Telescopic control push rod, 3221. Driven gear, 3 222. Stop bar; 33. High voltage lead wire; 34. Spherical high voltage electrode; 4. Insulating protective cover; 41. Fixed insulating plate; 411. Insulating support column; 4111. Moving seam; 4112. Side seam; 42. Support cover; 43. Movable frame; 431. Sliding block; 432. Limiting threaded rod; 433. Pressure plate; 434. Knob; 44. Folded insulating cloth; 5. Main controller; 51. Control panel; 6. High polymer resin. Detailed Implementation

[0037] The technical solution of this patent will be further described in detail below with reference to specific implementations. Any technical features or connection relationships not described in detail in this invention are all existing technologies.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] like Figure 1-10As shown, the present invention provides a test device for the breakdown voltage of high polymer resin wires, including a base 1, a clamping posture adjustment component 2, a high voltage breakdown detection unit 3, an insulating protective cover 4, and a main controller 5. An insulating pad 11 is fixedly provided at the center of the upper wall of the base 1. The clamping posture adjustment component 2 is movably disposed on the upper wall of the insulating pad 11. A high voltage electrode lifting frame 16 is provided at the end of the upper wall of the base 1. The high voltage breakdown detection unit 3 is fixedly disposed at the upper end of the output end of the high voltage electrode lifting frame 16. The insulating protective cover 4 is disposed at the edge of the upper wall of the base 1 and surrounds the clamping posture adjustment component 2. The main controller 5 is disposed on one side of the base 1, and a control panel 51 is provided at the upper end of the main controller 5.

[0040] The upper wall of the insulating pad 11 is provided with a first insulating threaded rod 12 and a guide slide rod 13 on the left and right edges respectively. The first insulating threaded rod 12 is rotatably set. A moving guide rail 14 is slidably set above the first insulating threaded rod 12 and the guide slide rod 13. A second insulating threaded rod 15 is rotatably set on the moving guide rail 14. Threaded sleeves 141 are fixed at the left and right ends of the lower wall of the moving guide rail 14. The threaded sleeves 141 are respectively sleeved on the first insulating threaded rod 12 and the guide slide rod 13. The threaded sleeves 141 are threadedly connected to the first insulating threaded rod 12.

[0041] The end of the first insulating threaded rod 12 is provided with a first drive motor 121, and the output end of the first drive motor 121 is connected to the end of the first insulating threaded rod 12. The end of the second insulating threaded rod 15 is provided with a second drive motor 151, which is fixedly mounted on the end of the moving guide rail 14. The output end of the second drive motor 151 is connected to the end of the second insulating threaded rod 15.

[0042] The clamping posture adjustment assembly 2 includes a movable slide 21, a main support rotating frame 22, a contour clamping seat 23, a tension detection push rod 24, and an end fixing clamp 25. The movable slide 21 is movably mounted on the upper wall of the insulating pad 11. A deflection main gear 211 is rotatably mounted at the center of the upper wall of the movable slide 21. The main support rotating frame 22 is fixedly mounted at the center of the upper wall of the deflection main gear 211. A universal adjusting ball 223 is fixedly mounted at the upper end of the main support rotating frame 22. The contour clamping seat 23 is engaged and movably mounted above the universal adjusting ball 223. The contour clamping seat 23 includes a rigid support base 231, a breakdown positioning sensor 232, and an insulating contouring surface. The rigid support base 231 is movably engaged above the universal adjusting ball 223. The penetration positioning sensor 232 is covered on the upper surface of the rigid support base 231. The insulating contour skin 233 is covered on the outer surface of the penetration positioning sensor 232. The lower wall of the rigid support base 231 has a ball groove 2311. The universal adjusting ball 223 is engaged in the ball groove 2311. The tension detection push rod 24 is located at the front end of the lower wall of the rigid support base 231. The end fixing clamp 25 is located at the lower end of the output end of the tension detection push rod 24. The end fixing clamp 25 is movably located below the contour clamp 23.

[0043] A high-polymer resin 6 is clamped and fixed on the outer side of the contour clamping seat 23. The two ends of the high-polymer resin 6 are respectively fixed on the end fixing clamp 25. The left and right ends of the lower wall of the contour clamping seat 23 are symmetrically provided with pitch rotation shafts 2312. A roll control gear 2313 is connected between the pitch rotation shafts 2312. The upper ends of the left and right side walls of the main support frame 22 are provided with a gear limit groove 222. The roll control gear 2313 is slidably disposed in the gear limit groove 222. A pitch control motor 2314 is provided on the pitch rotation shaft 2312. The output end of the pitch control motor 2314 is connected to the pitch rotation shaft 2312. A roll control gear 224 is rotatably disposed inside the upper end of the main support frame 22. The roll control gear 224 is driven by a roll control motor (not shown in the figure). The roll control gear 224 is meshed with the roll control gear 2313.

[0044] Tension detector 241 is provided on the side of tension detection push rod 24 near ball groove 2311. The output end of tension detector 241 is connected to end fixing clamp 25. Protective shell 26 is provided on the side of tension detection push rod 24 away from ball groove 2311. Protective shell 26 surrounds tension detection push rod 24 and tension detector 241. Deflection control motor 212 is fixedly provided on the side wall of movable slide table 21. Deflection control gear 213 is provided on the output end of deflection control motor 212. Deflection control gear 213 is meshed with deflection main gear 211. Movable block 221 is fixedly provided on the rear side wall of movable slide table 21. Movable block 221 is sleeved on second insulating threaded rod 15. Movable block 221 is threadedly connected to second insulating threaded rod 15.

[0045] The high-voltage breakdown detection unit 3 includes a support arm 31, a high-voltage electrode frame 32, a high-voltage lead 33, and a spherical high-voltage electrode 34. The support arm 31 is fixedly mounted on the upper end of the output end of the high-voltage electrode lifting frame 16. The high-voltage electrode frame 32 is fixedly mounted on the side wall of the support arm 31 near the high-voltage electrode lifting frame 16. Insulating roller frames 311 are symmetrically arranged at both ends of the upper wall of the support arm 31. A first take-up roller 312 is rotatably mounted on the insulating roller frame 311 near the high-voltage electrode lifting frame 16, and a second take-up roller 313 is rotatably mounted on the insulating roller frame 311 away from the high-voltage electrode lifting frame 16. The lead wire 33 is wound on the side wall of the first take-up roller 312 and the second take-up roller 313. The end of the high voltage lead wire 33 passes through the upper wall of the support arm 31 away from the high voltage electrode lifting frame 16. The spherical high voltage electrode 34 is located at the end of the high voltage lead wire 33. The spherical high voltage electrode 34 is movably positioned below the end of the support arm 31 away from the high voltage electrode lifting frame 16. A displacement detector 3123 is provided at the rotation shaft of the first take-up roller 312. The input end of the displacement detector 3123 is connected to the rotation shaft of the first take-up roller 312. The displacement detector 3123 is fixedly mounted on the insulating roller frame 311.

[0046] A control wheel 3121 is coaxially fixed at the center of the end face of the first take-up roller 312. A limit rod 3122 is fixedly fixed on the side wall of the control wheel 3121. The control wheel 3121 is rotatably positioned above the high-voltage electrode frame 32. A telescopic control push rod 322 and a high-voltage traction motor 321 are fixedly mounted on the upper wall of the high-voltage electrode frame 32. A driven gear 3221 is rotatably mounted at the output end of the telescopic control push rod 322. A drive gear 3211 is mounted at the output end of the high-voltage traction motor 321. The thickness of 211 is greater than that of the driven gear 3221. The driving gear 3211 meshes with the driven gear 3221. A stop bar 3222 is fixedly provided on the end face of the driven gear 3221. One end of the stop bar 3222 is fixedly connected to the center of the end face of the driven gear 3221. The stop bar 3222 is in contact with the limit bar 3122. When the telescopic control push rod 322 drives the driven gear 3221 away from the control wheel 3121, the stop bar 3222 does not contact the limit bar 3122.

[0047] The insulating protective cover 4 includes a fixed insulating plate 41, a supporting cover 42, a movable frame 43, and a folded insulating cloth 44. The supporting cover 42 is fixedly mounted on the upper wall of the base 1 and surrounds the clamping posture adjustment component 2. The fixed insulating plates 41 are fixedly mounted in pairs at the front and rear ends of the supporting cover 42. The movable frame 43 is movably mounted above the left and right ends of the supporting cover 42. The folded insulating cloth 44 is connected between the movable frame 43 and the supporting cover 42.

[0048] Insulating support columns 411 are fixedly provided on the left and right edges of the fixed insulating plate 41. The left and right side walls of the insulating support columns 411 are provided with movable slots 4111, and the front and rear side walls of the insulating support columns 4111 are provided with side slots 4112. The movable slots 4111 and the side slots 4112 are connected through each other. Sliding blocks 431 are fixedly provided at both ends of the movable frame 43. The sliding blocks 431 are slidably engaged in the movable slots 4111. A limiting threaded rod 432 is rotatably embedded in the side wall of the sliding block 431. The limiting threaded rod 432 is threadedly connected to the sliding block 431. The limiting threaded rod 432 is slidably engaged in the side slots 4112. A pressing plate 433 is fixedly provided at the end of the limiting threaded rod 432. The pressing plate 433 contacts the side wall of the insulating support column 411. A knob 434 is fixedly provided on the side wall of the pressing plate 433.

[0049] The first drive motor 121, the second drive motor 151, the high-voltage electrode lifting frame 16, the deflection control motor 212, the roll control motor, the pitch control motor 2314, the breakdown positioning sensor 232, the tension detection push rod 24, the tension detector 241, the displacement detector 3123, the high-voltage traction motor 321, the telescopic control push rod 322, and the control panel 51 are all electrically connected to the main controller 5.

[0050] In actual use, the spherical high-voltage electrode 34 is initially positioned at a high position below the support arm 31. At this time, the high-voltage traction motor 321 does not run, the drive gear 3211 is stationary, the driven gear 3221 remains stationary, the stop rod 3222 presses against the limit rod 3122, and the control wheel 3121 is locked with the first take-up roller 312.

[0051] The tester clamped and fixed the polymer resin 6 to be tested onto the contour clamp 23, and fixed both ends of the polymer resin 6 to the end fixing clamp 25 by bolts and reserved holes to simulate the actual laying posture.

[0052] The tension detection push rod 24 can drive the end fixing clamp 25 to move, apply tensile tension to the polymer resin 6, and the tension detector 241 detects the tension value in real time and records the tension threshold of the insulating layer of the polymer resin 6. After the polymer resin 6 is stretched, it deforms and the insulating layer becomes thinner. By adjusting the tension threshold of the tension detector 241, the tensile force on the polymer resin 6 can be adjusted, and then electrical breakdown tests can be performed on polymer resins 6 of different thicknesses.

[0053] During testing, the telescopic control push rod 322 drives the driven gear 3221 away, the stop rod 3222 disengages from the limit rod 3122, the spherical high-voltage electrode 34 descends under the action of gravity, the high-voltage lead wire 33 is released, and the displacement detector 3123 monitors the rotation of the first take-up roller 312 to accurately obtain the electrode falling distance.

[0054] The main controller 5 determines the distance between the spherical high-voltage electrode 34 and the polymer resin 6 based on the height of the high-voltage electrode lifting frame 16. When the spherical high-voltage electrode 34 approaches the polymer resin 6, it controls the telescopic control push rod 322 to reset and the stop rod 3222 to intercept the limit rod 3122, so that the spherical high-voltage electrode 34 is accurately stopped at the test position and high pressure is applied to complete the breakdown test on the polymer resin 6 after stretching and deformation.

[0055] After the test is completed, the high-voltage traction motor 321 drives the take-up roller to rotate and automatically retrieve the spherical high-voltage electrode 34. The high-voltage electrode lifting frame 16 can adjust the height of the high-voltage breakdown detection unit 3, change the distance between the electrode and the polymer resin 6, and adapt to the test requirements of different voltage levels.

[0056] The high-voltage traction motor 32 can be used with horizontal deflection to realize the side and oblique breakdown test of polymer resin 6, and comprehensively test the insulation performance;

[0057] The contour clamp 23 has a built-in breakdown positioning sensor 232, which collects the breakdown voltage, electric field distribution and breakdown point coordinates at the moment of high voltage breakdown. The data is uploaded to the control panel 51 in real time to realize automated quantitative testing and positioning, and objectively determine the insulation performance of high polymer resin.

[0058] The universal ball 223, together with the roll control motor, pitch control motor, and yaw control motor, drives the contour clamping seat 23 to complete multi-posture adjustment, simulating bending, twisting, and tilting conditions in actual use, thus improving the realism of the test; the first drive motor 121 and the second drive motor 151 adjust the clamping position of the polymer resin 6 to realize the breakdown test of different sections and multiple positions of the polymer resin 6.

[0059] The insulating protective cover 4 and the folded insulating cloth 44 isolate the high-voltage test area to prevent the risk of electric arc and electric shock. The height of the movable frame 43 can be adjusted by the knob 434, and the folded insulating cloth 44 can be folded or unfolded to adapt to different test postures, ensuring safety and flexibility.

[0060] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A testing device for the breakdown voltage of a high-polymer resin conductor, comprising a base, wherein an insulating pad is fixedly disposed at the center of the upper wall of the base, characterized in that: It also includes a clamping posture adjustment component that is movably provided on the upper wall of the insulating pad, a high voltage electrode lifting frame that is provided at the end of the upper wall of the base, and a high voltage breakdown detection unit that is provided at the upper end of the output end of the high voltage electrode lifting frame. The clamping posture adjustment assembly includes a movable slide, a main support rotating frame, a contour clamping seat, a tension detection push rod, and an end fixing clamp. The movable slide is movably mounted on the upper wall of the insulating pad. A deflection main gear is rotatably mounted at the center of the upper wall of the movable slide. The main support rotating frame is fixedly mounted at the center of the upper wall of the deflection main gear. A universal adjusting ball is fixedly mounted at the upper end of the main support rotating frame. The contour clamping seat is engaged and movably mounted above the universal adjusting ball. The contour clamping base includes a rigid support base, a puncture positioning sensor, and an insulating contour skin. The rigid support base is movably engaged above the universal adjustment ball. The puncture positioning sensor covers the upper surface of the rigid support base, and the insulating contour skin covers the outer surface of the puncture positioning sensor. A ball groove is formed in the center of the lower wall of the rigid support base, and the universal adjustment ball is engaged in the ball groove. The tension detection push rod is located at the front end of the lower wall of the rigid support base, and the end fixing clamp is located at the lower end of the output end of the tension detection push rod. The end fixing clamp is movably engaged below the contour clamping base.

2. The testing device for the breakdown voltage of high polymer resin wires according to claim 1, characterized in that: The outer side of the contour clamping seat is clamped and fixed with high polymer resin. The two ends of the high polymer resin are respectively fixed to the end fixing clamp. The lower wall of the contour clamping seat is symmetrically provided with pitch rotation shafts at the left and right ends. A roll control gear is connected between the pitch rotation shafts. The upper end of the left and right side walls of the main support frame is provided with a gear limiting groove. The roll control gear is slidably disposed in the gear limiting groove. A pitch control motor is provided on the pitch rotation shaft. The output end of the pitch control motor is connected to the pitch rotation shaft. A roll control gear is rotatably disposed inside the upper end of the main support frame. The roll control gear is driven by the roll control motor. The roll control gear is meshed with the roll control gear.

3. The testing device for the breakdown voltage of high polymer resin wires according to claim 1, characterized in that: A tension detector is provided on the side of the tension detection push rod near the ball groove. The output end of the tension detector is connected to the end fixing clamp. A protective shell is provided on the side of the tension detection push rod away from the ball groove. The protective shell surrounds the tension detection push rod and the tension detector. A deflection control motor is fixedly provided on the side wall of the movable slide. A deflection control gear is provided on the output end of the deflection control motor. The deflection control gear is meshed with the deflection main gear. A moving block is fixedly provided on the rear side wall of the movable slide.

4. The testing device for the breakdown voltage of high polymer resin wires according to claim 1, characterized in that: The high-voltage breakdown detection unit includes a support arm, a high-voltage electrode frame, a high-voltage lead wire, and a spherical high-voltage electrode. The support arm is fixedly mounted on the upper output end of the high-voltage electrode lifting frame. The high-voltage electrode frame is fixedly mounted on the side wall of the support arm near the high-voltage electrode lifting frame. Insulating roller frames are symmetrically arranged at both ends of the upper wall of the support arm. A first take-up roller is rotatably mounted on the insulating roller frame near the high-voltage electrode lifting frame, and a second take-up roller is rotatably mounted on the insulating roller frame away from the high-voltage electrode lifting frame. The high-voltage lead wire is wound around the side walls of the first and second take-up rollers. The end of the high-voltage lead wire passes through the upper wall of the support arm away from the high-voltage electrode lifting frame. The spherical high-voltage electrode is located at the end of the high-voltage lead wire and is movably positioned below the end of the support arm away from the high-voltage electrode lifting frame. A displacement detector is located at the rotation shaft of the first take-up roller. The input end of the displacement detector is connected to the rotation shaft of the first take-up roller, and the displacement detector is fixedly mounted on the insulating roller frame.

5. The testing device for the breakdown voltage of high polymer resin wires according to claim 1, characterized in that: The insulating protective cover includes a fixed insulating plate, a supporting cover body, a movable frame, and a folded insulating cloth. The supporting cover body is fixedly installed on the upper wall of the base and surrounds the clamping posture adjustment component. The fixed insulating plates are fixedly installed in pairs at the front and rear ends of the supporting cover body. The movable frame is movably installed above the left and right ends of the supporting cover body. The folded insulating cloth is connected between the movable frame and the supporting cover body.

6. The testing device for the breakdown voltage of high polymer resin wires according to claim 5, characterized in that: Insulating support columns are fixedly provided on the left and right edges of the fixed insulating plate, and movable slots are provided on the left and right side walls of the insulating support columns. Side slots are provided on the front and rear side walls of the insulating support columns. The movable slots and side slots are connected through each other. Sliding blocks are fixedly provided at both ends of the movable frame. The sliding blocks are slidably engaged and rotatably disposed in the movable slots. A limiting threaded rod is rotatably embedded in the side wall of the sliding block. The limiting threaded rod is threadedly connected to the sliding block. The limiting threaded rod is slidably disposed in the side slots. A pressure plate is fixedly provided at the end of the limiting threaded rod. The pressure plate contacts the side wall of the insulating support column. A knob is fixedly provided on the side wall of the pressure plate.

7. The testing device for the breakdown voltage of high polymer resin wires according to claim 3, characterized in that: The upper wall of the insulating pad is provided with a first insulating threaded rod and a guide slide rod on its left and right edges, respectively. The first insulating threaded rod is rotatably mounted. A movable guide rail is slidably mounted above the first insulating threaded rod and the guide slide rod. A second insulating threaded rod is rotatably mounted on the movable guide rail. Threaded sleeves are fixedly mounted at the left and right ends of the lower wall of the movable guide rail. The threaded sleeves are respectively fitted onto the first insulating threaded rod and the guide slide rod. The threaded sleeves are threadedly connected to the first insulating threaded rod. The movable block is fitted onto the second insulating threaded rod and is threadedly connected to the second insulating threaded rod.

8. The testing device for the breakdown voltage of high polymer resin wires according to claim 1, characterized in that: An insulating protective cover is provided on the upper edge of the base, and the insulating protective cover surrounds the clamping posture adjustment component.

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