Withstand voltage test device for high-voltage switch shell

Abstract

The invention discloses a withstand voltage test device for a high-voltage switch shell, and the device achieves the complete coverage and precise detection through the innovatively designed partition assembly and monitoring assembly, and the partition assembly can divide the surface of the shell into a plurality of independent detection regions through the synergistic effect of inner and outer insulating strips, insulating concave blocks and coating rings. Each detection area is designed in an electrical isolation mode, cross-regional interference is avoided, it is ensured that the detection result is more accurate when high voltage is applied, omission can be effectively avoided through a subarea step-by-step detection mode, each part of the shell can be fully covered, temperature distribution on the surface of the shell is rapidly detected through all-dimensional rotary scanning of a thermal imager in cooperation with a monitoring assembly, and the detection accuracy is improved. And the defect position is accurately identified. The problem that a traditional detection device may omit defects is effectively solved, the detection efficiency and reliability are greatly improved, and a higher guarantee is provided for quality control of the high-voltage switch shell.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure-withstand test devices, and more particularly to a pressure-withstand test device for a high-voltage switch housing. Background Art

[0002] The high-voltage switch housing is an important insulating and protective component in the power system, and its withstand voltage performance is directly related to the operational safety and reliability of the equipment. Therefore, during the production and use of the high-voltage switch housing, a strict withstand voltage test is required to verify whether it has sufficient insulation strength and electrical breakdown resistance. Traditional withstand voltage test equipment mainly applies high voltage current to the high-voltage switch housing and monitors its leakage current or breakdown for detection, but there are often problems such as low detection efficiency and inaccurate defect location.

[0003] Existing pressure test equipment is difficult to effectively locate multiple defects when testing high-voltage switch housings. When there are multiple defects in the housing, traditional equipment often cannot accurately identify the locations of all defects, and the defect detection coverage is limited, which can easily lead to omissions, resulting in incomplete test results, affecting product quality and safety in subsequent use.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a pressure withstand test device for a high voltage switch housing. Summary of the invention

[0005] The object of the present invention is to provide a pressure withstand test device for a high voltage switch housing to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0007] A withstand voltage test device for a high-voltage switch housing, comprising: a test bench, a starting component, a clamping component and a monitoring component, wherein the bottom end of the test bench is fixedly connected to an experimental bracket, and the top end of the test bench is provided with a starting component, a clamping component and a monitoring component; the starting component comprises a starting bench, the bottom end of the starting bench is fixedly connected to the top end of the test bench, a driving electric push rod is installed on the top end of the starting bench, the output end of the driving electric push rod is fixedly connected to a slider, the bottom end of the slider is fixedly connected to an adjusting motor, the output end of the adjusting motor is fixedly connected to a rotating disk, and a voltage generator is installed on the rotating disk; the clamping component comprises a clamping column fixedly connected to the bottom end of the test bench, and the clamping component is used to clamp the housing to be tested; the monitoring component comprises a monitoring bench installed on the top end of the test bench, an electric slide rail is installed on the outer periphery of the monitoring bench, a pair of electric slide rails are installed in the electric slide rails, an electric driving grounding electrode and a thermal imager are respectively installed on the pair of electric slides, and a partition component is arranged in the middle of the monitoring bench.

[0008] As a further improvement of the present invention, a clamping groove is provided on the clamping column, and a clamping motor is installed at one end of the clamping column, a reciprocating screw rod is fixedly connected to the output end of the clamping motor, a pair of mutually symmetrical screw sleeves are installed on the outer periphery of the reciprocating screw rod, a moving rod is fixedly connected to the top end of the screw sleeve, and a pair of clamping holes slidably connected to the moving rod are provided on the test bench.

[0009] As a further improvement of the present invention, a clamping table is embedded at the top of the test bench and located at the lower side of the starting component. A pair of symmetrical insulating protection blocks are slidably connected to the clamping table, and the insulating protection blocks are fixedly connected to the moving rod.

[0010] As a further improvement of the present invention, an abutment groove is provided on the insulating protection block, a reset spring is installed in the abutment groove, one end of the reset spring is fixedly connected to an insulating clamping block, the insulating clamping block is slidably connected to the abutment groove, an electromagnet is installed on the inner wall of the abutment groove, and a magnetic block is embedded in the end of the insulating clamping block close to the electromagnet.

[0011] As a further improvement of the present invention, an insulating shell is installed at one end of the insulating protection block and located at the lower side of the insulating clamping block, and a plurality of evenly distributed external insulating strips are installed on the inner wall of the insulating shell. The partition assembly includes a lifting block.

[0012] As a further improvement of the present invention, a rising groove is opened in the monitoring platform, an electric push rod is installed in the rising groove, the lifting block is slidably connected to the rising groove, and the electric push rod is fixedly connected to the bottom end of the lifting block.

[0013] As a further improvement of the present invention, a rotating groove is provided on the lifting block, a partition disk is embedded in the rotating groove, a covering ring is installed outside the partition disk, a plurality of evenly distributed insulating recessed blocks are embedded in the covering ring, and a protective member is installed at the bottom end of the rotating disk, and the protective member has the same structure as the covering ring and the insulating recessed blocks.

[0014] As a further improvement of the present invention, a plurality of evenly distributed limiting holes are provided on the partition plate, a protective column is slidably connected in the limiting hole, and a tension spring is installed in the limiting hole, the tension spring is fixedly connected to the protective column, and an inner insulating strip is fixedly connected to the top of the protective column.

[0015] As a further improvement of the present invention, a servo motor is installed on the inner wall of the rotating groove, and a drive disk is fixedly connected to the output end of the servo motor. The drive disk is rotatably connected to the rotating groove, and a plurality of square holes matching the partition holes are opened on the drive disk, and the square holes are slidably connected to the protective columns.

[0016] As a further improvement of the present invention, insulating films are installed on the top of the outer insulating strip and the inner insulating strip, and the insulating films are made of polytetrafluoroethylene films.

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

[0018] This solution and this device aims at the problem of multiple defects in the detection of high-voltage switch housings. Through the innovative design of partition components and monitoring components, comprehensive coverage and accurate detection are achieved. The partition components can use the synergy of internal and external insulation strips, insulation concave blocks and covering rings to divide the shell surface into multiple independent detection areas. Each detection area is designed with electrical isolation to avoid cross-zone interference, ensuring that the detection results are more accurate when high voltage is applied. The partitioned step-by-step detection method can effectively avoid omissions and fully cover every part of the shell. With the monitoring component, the temperature distribution on the shell surface can be quickly detected through the full-range rotation scanning of the thermal imager, and the defect location can be accurately identified. For the detected defective areas, the system automatically marks them in combination with the marking function, providing a clear positioning basis for subsequent quality analysis and repair. In the case that there may be multiple defects in the shell, the device can identify the defects of each area in turn through the partitioned step-by-step detection method, ensuring the comprehensiveness and accuracy of the detection, effectively solving the problem that defects may be missed by traditional detection devices, greatly improving the detection efficiency and reliability, and providing higher guarantees for the quality control of high-voltage switch shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the starting component of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the insulating protection block of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the monitoring component of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the partition assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the partition assembly of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the drive disk of the present invention.

[0027] Description of the numbers in the figure:

[0028] 1. Test bench; 2. Starting assembly; 3. Clamping assembly; 4. Monitoring assembly; 5. Partitioning assembly; 11. Experimental bracket; 21. Starting platform; 22. Driving electric push rod; 23. Sliding block; 24. Rotating disk; 31. Clamping column; 32. Clamping motor; 33. Moving rod; 34. Clamping platform; 35. Insulating protection block; 36. Insulating clamping block; 37. Insulating shell; 38. Outer insulating strip; 41. Monitoring platform; 42. Electric slide rail; 43. Electric drive grounding electrode; 44. Thermal imager; 51. Lifting block; 52. Partitioning disk; 53. Covering ring; 54. Insulating recessed block; 55. Partitioning hole; 56. Protective column; 57. Inner insulating strip; 58. Driving disk. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0030] The first implementation method:

[0031] See also Figure 1-8 A withstand voltage test device for a high-voltage switch housing comprises: a test bench 1, a starting component 2, a clamping component 3 and a monitoring component 4, wherein the bottom end of the test bench 1 is fixedly connected to an experimental bracket 11, and the top end of the test bench 1 is provided with the starting component 2, the clamping component 3 and the monitoring component 4; the starting component 2 comprises a starting platform 21, the bottom end of the starting platform 21 is fixedly connected to the top end of the test bench 1, a driving electric push rod 22 is installed on the top end of the starting platform 21, a slider 23 is fixedly connected to the output end of the driving electric push rod 22, an adjusting motor is fixedly connected to the bottom end of the slider 23, and an adjusting motor is fixedly connected to the bottom end of the slider 23. The output end of the machine is fixedly connected with a rotating disk 24, on which a voltage generator is installed; the clamping assembly 3 includes a clamping column 31 fixedly connected to the bottom end of the test bench 1, and the clamping assembly 3 is used to clamp the shell to be tested; the monitoring assembly 4 includes a monitoring platform 41 installed on the top of the test bench 1, and an electric slide rail 42 is installed outside the monitoring platform 41, and a pair of electric sliders are installed in the electric slide rail 42, and an electric drive grounding electrode 43 and a thermal imager 44 are respectively installed on the pair of electric sliders, and a partition assembly 5 is arranged in the middle of the monitoring platform 41.

[0032] Among them, in order to solve the problem of difficult positioning of multiple defects in the detection of high-voltage switch housings, the innovatively designed partition components and monitoring components have achieved comprehensive coverage and accurate detection. The partition components can use the synergistic effect of internal and external insulation strips, insulation concave blocks and covering rings to divide the housing surface into multiple independent detection areas. Each detection area is electrically isolated to avoid cross-area interference, ensuring that the detection results are more accurate when high voltage is applied. The partitioned step-by-step detection method can effectively avoid omissions and fully cover every part of the housing. With the monitoring component, the temperature distribution on the housing surface can be quickly detected through the full-range rotation scanning of the thermal imager, and the defect location can be accurately identified. For the detected defective areas, the system automatically marks them in combination with the marking function, providing a clear positioning basis for subsequent quality analysis and repair. In the case where there may be multiple defects in the housing, the device can identify the defects of each area in turn through the partitioned step-by-step detection method, ensuring the comprehensiveness and accuracy of the detection, effectively solving the problem that traditional detection devices may miss defects, greatly improving the detection efficiency and reliability, and providing higher guarantees for the quality control of high-voltage switch housings.

[0033] A clamping groove is provided on the clamping column 31, and a clamping motor 32 is installed at one end of the clamping column 31, a reciprocating screw rod is fixedly connected to the output end of the clamping motor 32, a pair of mutually symmetrical screw sleeves are installed outside the reciprocating screw rod, a moving rod 33 is fixedly connected to the top of the screw sleeve, and a pair of clamping holes slidably connected to the moving rod 33 are provided on the test bench 1.

[0034] A clamping platform 34 is embedded at the top of the test bench 1 and located at the lower side of the starting assembly 2 . A pair of symmetrical insulating protection blocks 35 are slidably connected to the clamping platform 34 . The insulating protection blocks 35 are fixedly connected to the moving rod 33 .

[0035] An abutment groove is provided on the insulating protection block 35, in which a reset spring is installed. An insulating clamping block 36 is fixedly connected to one end of the reset spring. The insulating clamping block 36 is slidably connected to the abutment groove. An electromagnet is installed on the inner wall of the abutment groove. A magnetic block is embedded in the end of the insulating clamping block 36 close to the electromagnet.

[0036] Among them, a clamping groove is provided on the clamping column 31, and a clamping motor 32 is installed at one end of the clamping column 31. A reciprocating screw is fixedly connected to the output end of the clamping motor 32. The reciprocating screw drives a pair of mutually symmetrical screw sleeves to move along the axial direction of the screw sleeve by rotation, thereby realizing the linear movement of the clamping assembly 3. A moving rod 33 is fixedly connected to the top of the screw sleeve, and the moving rod 33 drives the subsequent clamping mechanism to realize synchronous movement through its linear movement. In order to ensure that the movement of the moving rod 33 is smooth and controlled, a pair of clamping holes slidably connected to the moving rod 33 are provided on the test bench 1. The design of the clamping holes can guide the moving rod 33 to prevent deviation or shaking during the movement.

[0037] A clamping table 34 is embedded at the top of the test bench 1 and located at the lower side of the starting component 2. The installation position of the clamping table 34 has been precisely designed to ensure that the test area of ​​the shell to be tested can be centrally clamped. A pair of symmetrical insulating protection blocks 35 are slidably connected to the clamping table 34. The insulating protection blocks 35 are fixedly connected to the moving rod 33 to achieve synchronous movement of the clamping assembly driven by the moving rod 33, so that the shell to be tested can be effectively clamped. At the same time, the design of the insulating protection block 35 can provide comprehensive electrical isolation for the clamped shell to be tested during the test process, preventing current or electric field from leaking to other structures during high-voltage testing, thereby improving the safety and accuracy of the test.

[0038] An abutment groove is provided on the insulating protection block 35, and a reset spring is installed inside the abutment groove. One end of the reset spring is fixedly connected to the insulating clamping block 36. The design of the reset spring can automatically reset the insulating clamping block 36 after the clamping work is completed, thereby improving the convenience of operation and work efficiency of the clamping assembly. The insulating clamping block 36 is slidably connected to the abutment groove. The sliding connection structure ensures that the insulating clamping block 36 can move flexibly under the action of the reset spring. An electromagnet is installed on the inner wall of the abutment groove. The electromagnet acts on the magnetic block embedded near one end of the insulating clamping block 36 through magnetic force to achieve precise control of the clamping force. By controlling the on and off state of the electromagnet, the clamping or release action of the insulating clamping block 36 can be flexibly adjusted.

[0039] In summary, for the withstand voltage test of the high-voltage switch housing, since the housing is usually cylindrical, it needs to be effectively fixed during the test process. First, the high-voltage switch housing can be transported to the bottom of the starting assembly 2 and the initial positioning can be completed by operating the mechanical arm arranged outside the test bench 1. Subsequently, by starting the power switch of the clamping motor 32, the clamping motor 32 drives the reciprocating screw to rotate, thereby driving a pair of moving rods 33 connected thereto to move inward synchronously. In the process of the moving rods 33 moving toward each other, the insulating protection block 35 can be driven to move closer to the housing to be tested, and the housing can be further fixed.

[0040] Next, by starting the electromagnet in the abutment groove inside the insulating protection block 35, the electromagnet generates a repulsive force on the magnetic block inside it, thereby pushing the insulating clamping block 36 to move, and finally achieving a firm clamping of the shell to be tested. At this time, the voltage generator installed on the rotating disk 24 can be driven, and the positive voltage electrode at one end of the voltage generator can be moved and attached to the upper end of the shell to be tested through the electric actuator. At the same time, the electric drive grounding electrode 43 in the electric slide rail 42 is driven to attach the grounding electrode to the lower end of the shell. The driving method of the electric drive grounding electrode is the same as that of the positive voltage electrode, ensuring that the two can be accurately positioned and contacted.

[0041] After the above preparations are completed, the voltage generator is started to apply high voltage to the shell. If the current value detected on the electric drive grounding electrode 43 wire is within the set threshold range, it indicates that the insulation performance of the shell to be tested is good and meets the detection requirements; but if the shell is broken down by the current, it indicates that it has a large defect and is judged to be a defective product. In this way, the withstand voltage performance test of the high-voltage switch shell can be effectively completed and its quality status can be quickly judged.

[0042] An ascending groove is provided in the monitoring platform 41 , and an electric push rod is installed in the ascending groove. The lifting block 51 is slidably connected to the ascending groove, and the electric push rod is fixedly connected to the bottom end of the lifting block 51 .

[0043] An insulating shell 37 is installed at one end of the insulating protection block 35 and located at the lower side of the insulating clamping block 36 . A plurality of evenly distributed outer insulating strips 38 are installed on the inner wall of the insulating shell 37 . The partition assembly 5 includes a lifting block 51 .

[0044] A rotating groove is provided on the lifting block 51, in which a partition plate 52 is embedded. A covering ring 53 is installed outside the partition plate 52, and a plurality of evenly distributed insulating recessed blocks 54 are embedded in the covering ring 53. A protective member is installed at the bottom end of the rotating disk 24, and the protective member has the same structure as the covering ring 53 and the insulating recessed blocks 54.

[0045] The partition plate 52 is provided with a plurality of evenly distributed limiting holes, in which a protective column 56 is slidably connected, and a tension spring is installed in the limiting hole, the tension spring is fixedly connected to the protective column 56, and an inner insulating strip 57 is fixedly connected to the top of the protective column 56.

[0046] A servo motor is installed on the inner wall of the rotating groove, and a driving disk 58 is fixedly connected to the output end of the servo motor. The driving disk 58 is rotatably connected to the rotating groove, and a plurality of square holes matching the partition holes 55 are opened on the driving disk 58, and the square holes are slidably connected to the protective columns 56.

[0047] Insulating films are installed on the top of the outer insulating strip 38 and the inner insulating strip 57, and the insulating films are made of polytetrafluoroethylene films.

[0048] Among them, if the detected current is large, it means that there are certain small defects in the shell to be tested, which causes current to flow. At this time, the thermal imager 44 in the electric slide rail 42 can be started to rotate and observe the shell to be tested. Because current flows through the defective part, the heat there is relatively large, which can be directly observed by the thermal imager 44. Subsequently, the position is marked with a marking system, so that the defect can be located. However, even so, it is difficult to determine that the shell to be tested has only one defect. At this time, the shell to be tested is clamped by the mechanical arm again, and the power switch of the electromagnet is disconnected, so that a pair of insulating clamping blocks 36 are retracted into the abutment groove under the reset spring, and the mechanical arm clamps the shell to be tested and moves downward to a certain area, and again drives the clamping assembly 3 to complete the clamping of the insulating shell 37 on the pair of insulating protection blocks 35, so that its multiple external insulating strips 38 are abutted against the shell to be tested.

[0049] The partition assembly 5 is designed to realize partition detection of the shell to be tested, so as to accurately locate multiple potential defects and improve the detection efficiency and accuracy of the withstand voltage test. Through the synergistic effect of the lifting block 51, the partition plate 52, the covering ring 53, the inner insulating strip 57 and the outer insulating strip 38, the assembly can divide the high-voltage switch shell into multiple independent detection areas, thereby gradually completing the comprehensive detection.

[0050] During operation, the partition assembly 5 is height-adjusted through the rising groove in the monitoring platform 41 and the lifting block 51 slidably connected thereto. The electric push rod drives the lifting block 51 to move upward so that it contacts the lower surface of the shell to be tested. At the same time, a partition disk 52 is installed in the rotating groove opened on the lifting block 51. A covering ring 53 is arranged outside the partition disk 52. The insulating recessed blocks 54 evenly distributed in the covering ring 53 can fit the outer surface of the shell to be tested, providing a basic partition frame. The protective member installed at the bottom of the rotating disk 24 has the same structure as the covering ring 53 and the insulating recessed blocks 54, which can further enhance the partition sealing of the shell and ensure the accuracy of the partition test.

[0051] The evenly distributed limiting holes on the partition plate 52 are used to install the protective column 56. The protective column 56 is slidably connected in the limiting hole under the action of the tension spring, and the top of the protective column 56 is fixedly connected to the inner insulating strip 57. Driven by the servo motor, the driving plate 58 drives the protective column 56 and the inner insulating strip 57 to rotate outward and fit the inner surface of the shell to be tested. Finally, the inner insulating strip 57 and the outer insulating strip 38 are respectively fitted on the inner and outer surfaces of the shell to be tested, and fit with the insulating concave block 54 in the covering ring 53. The inner insulating strip 57 and the outer insulating strip 38 work together and cooperate with the insulating concave block 54 to divide the surface of the shell to be tested into multiple independent detection areas, each of which is electrically isolated from other areas, so as to ensure that when high voltage is applied, the current only flows through the target detection area and does not interfere with other areas.

[0052] If an abnormal current value is found in the preliminary test, it indicates that the shell to be tested has defects. At this time, the thermal imager 44 in the electric slide rail 42 can be started, and its rotation function can be used to observe the shell in all directions. Since the defect generates heat due to the flow of current, the thermal imager can directly locate the defect through temperature distribution and mark the defect with the help of the marking system. However, for shells with multiple defects, it is difficult to fully identify all defects through only one test, so it is necessary to use the partition component 5 to perform area-by-area testing.

[0053] After completing the partitioning, the rotating disk 24 is driven to rotate by adjusting the motor, and the voltage generator and the electrically driven grounding electrode 43 apply high voltage to each area and perform testing. By repeating the above operations, a comprehensive inspection of all partitions of the shell can be completed, all defects can be quickly found, and each defect position can be accurately marked through thermal imaging and marking systems to provide data support for subsequent repairs.

[0054] Insulating films are installed on the top of the outer insulating strip 38 and the inner insulating strip 57. The insulating films are made of polytetrafluoroethylene film. The polytetrafluoroethylene film has excellent electrical insulation properties and high voltage resistance. It also has the characteristics of high temperature resistance, corrosion resistance and low friction coefficient. It can effectively enhance the electrical isolation effect between the insulating strip and the shell to be tested, avoid electric field leakage or other electrical interference during high voltage testing, thereby ensuring the accuracy and safety of the test results.

[0055] It should be noted that whether to attach insulating film to both ends of the insulating strip depends on factors such as the test voltage, the complexity of the electric field distribution and environmental conditions. If the test voltage is low and the lower end of the shell is reliably grounded, attaching a film only to the upper end of the insulating strip can effectively reduce electric field concentration and surface discharge. However, when the test voltage is high, the electric field distribution is complex, or there are moisture, pollution and other factors in the environment, insulating film can be attached to both ends of the insulating strip to improve the overall dielectric strength and withstand voltage performance, while suppressing edge creepage and electric field coupling effects. In addition, measures such as improving the width and thickness of the insulating strip and adopting a double-layer insulation design can further improve the insulation effect, avoid cross-zone current or parasitic current interference during the test, and make the test results more accurate and reliable.

[0056] Working principle:

[0057] The high-voltage switch housing is subjected to precise withstand voltage test and defect detection by the test bench 1 and its supporting components. First, the starting component 2 adjusts the position of the voltage generator by driving the electric push rod 22 and the rotating disk 24, and cooperates with the clamping column 31 and the insulating protection block 35 of the clamping component 3 to achieve stable fixation and electrical isolation of the housing to be tested; the insulating protection block 35 controls the clamping action of the insulating clamping block 36 through the reset spring and the electromagnet to ensure that the housing will not be displaced or leak during the high-voltage test. Subsequently, the monitoring component 4 rotates and observes the surface of the housing through the thermal imager 44 on the electric slide rail 42, and detects the current change after the high voltage is applied by combining the electric drive grounding electrode 43 and the voltage generator, so as to preliminarily judge the overall insulation performance and defect location of the housing. If the current abnormality is detected, the partition component 5 is started to perform partition detection on the housing. The partition component 5 divides the housing surface into multiple independent detection areas through the synergistic effect of the lifting block 51, the partition disk 52, the sheathing ring 53, the inner insulating strip 57 and the outer insulating strip 38, ensuring that each area is electrically isolated from each other. When high voltage is applied to each area, if a defect occurs in the target detection area, the defect generates heat due to the flow of current. The thermal imager 44 can directly observe the temperature change and cooperate with the marking system to accurately locate it. In order to improve the detection accuracy, polytetrafluoroethylene film is installed on the top of the outer insulating strip 38 and the inner insulating strip 57 to enhance the electrical isolation effect and avoid electric field leakage or interference. The partition disk 52 is driven by a servo motor to rotate step by step for detection, so as to achieve full coverage of all partitions of the shell, and finally quickly find and mark multiple defects, providing accurate technical support for subsequent repairs.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0059] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A withstand voltage test device for a high voltage switch housing, characterized in that: include: A test bench (1), wherein the bottom end of the test bench (1) is fixedly connected to an experimental bracket (11), and the top end of the test bench (1) is provided with a starting component (2), a clamping component (3) and a monitoring component (4); A starting component (2), the starting component (2) comprising a starting platform (21), the bottom end of the starting platform (21) being fixedly connected to the top end of the test bench (1), a driving electric push rod (22) being installed on the top end of the starting platform (21), a slider (23) being fixedly connected to the output end of the driving electric push rod (22), an adjusting motor being fixedly connected to the bottom end of the slider (23), a rotating disk (24) being fixedly connected to the output end of the adjusting motor, and a voltage generator being installed on the rotating disk (24); A clamping assembly (3), the clamping assembly (3) comprising a clamping column (31) fixedly connected to the bottom end of the test bench (1), the clamping assembly (3) being used to clamp the shell to be tested; A monitoring component (4), the monitoring component (4) comprising a monitoring platform (41) mounted on the top of the test bench (1), an electric slide rail (42) mounted on the outside of the monitoring platform (41), a pair of electric sliders mounted inside the electric slide rail (42), an electric drive grounding electrode (43) and a thermal imager (44) mounted on the pair of electric sliders, respectively, and a partition component (5) disposed in the middle of the monitoring platform (41).

2. A withstand voltage test device for a high voltage switch housing according to claim 1, characterized in that: The clamping column (31) is provided with a clamping groove, and a clamping motor (32) is installed at one end of the clamping column (31), a reciprocating screw rod is fixedly connected to the output end of the clamping motor (32), a pair of mutually symmetrical screw sleeves are installed outside the reciprocating screw rod, and a moving rod (33) is fixedly connected to the top of the screw sleeve, and a pair of clamping holes slidably connected to the moving rod (33) are provided on the test bench (1).

3. A withstand voltage test device for a high voltage switch housing according to claim 2, characterized in that: A clamping platform (34) is embedded at the top of the test bench (1) and located at the lower side of the starting assembly (2). A pair of mutually symmetrical insulating protection blocks (35) are slidably connected to the clamping platform (34). The insulating protection blocks (35) are fixedly connected to the moving rod (33).

4. A withstand voltage test device for a high voltage switch housing according to claim 3, characterized in that: The insulating protection block (35) is provided with an abutment groove, a reset spring is installed in the abutment groove, one end of the reset spring is fixedly connected to an insulating clamping block (36), the insulating clamping block (36) is slidably connected to the abutment groove, an electromagnet is installed on the inner wall of the abutment groove, and a magnetic block is embedded in the end of the insulating clamping block (36) close to the electromagnet.

5. A withstand voltage test device for a high voltage switch housing according to claim 3, characterized in that: An insulating shell (37) is installed at one end of the insulating protection block (35) and located at the lower side of the insulating clamping block (36), and a plurality of evenly distributed external insulating strips (38) are installed on the inner wall of the insulating shell (37). The partition assembly (5) includes a lifting block (51).

6. A withstand voltage test device for a high voltage switch housing according to claim 1 or 5, characterized in that: The monitoring platform (41) is provided with a rising groove, an electric push rod is installed in the rising groove, the lifting block (51) is slidably connected to the rising groove, and the electric push rod is fixedly connected to the bottom end of the lifting block (51).

7. A withstand voltage test device for a high voltage switch housing according to claim 6, characterized in that: The lifting block (51) is provided with a rotating groove, a partition plate (52) is embedded in the rotating groove, a covering ring (53) is installed outside the partition plate (52), a plurality of evenly distributed insulating recessed blocks (54) are embedded in the covering ring (53), and a protective member is installed at the bottom end of the rotating disk (24), and the protective member has the same structure as the covering ring (53) and the insulating recessed blocks (54).

8. A withstand voltage test device for a high voltage switch housing according to claim 7, characterized in that: The partition plate (52) is provided with a plurality of evenly distributed limiting holes, a protective column (56) is slidably connected in the limiting hole, and a tension spring is installed in the limiting hole, the tension spring is fixedly connected to the protective column (56), and an inner insulating strip (57) is fixedly connected to the top of the protective column (56).

9. A withstand voltage test device for a high voltage switch housing according to claim 7, characterized in that: A servo motor is installed on the inner wall of the rotating groove, and a driving disk (58) is fixedly connected to the output end of the servo motor. The driving disk (58) is rotatably connected to the rotating groove, and a plurality of square holes matching the partition holes (55) are opened on the driving disk (58), and the square holes are slidably connected to the protective columns (56).

10. A withstand voltage test device for a high voltage switch housing according to claim 8, characterized in that: The top ends of the outer insulating strip (38) and the inner insulating strip (57) are both provided with insulating films, and the insulating films are made of polytetrafluoroethylene films.

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