Insulation resistance test system for insulating rod and use method

Abstract

The invention belongs to the technical field of insulation detection, and particularly discloses an insulation rod insulation resistance test system and a use method. The system disclosed by the invention comprises at least one detection cabin and an upper computer connected with the detection cabin, the detection cabin comprises at least one detection module; the detection module comprises a high-voltage output terminal and a matched measurement module; the measuring module comprises a power device, a transmission device, a sliding rail, a measuring sliding block, and upper and lower insulating rod fixing clamps fixedly arranged at the upper and lower ends of the sliding rail; the measuring slide block is slidably arranged on the slide rail, and the transmission device drives the measuring slide block to move on the slide rail under the action of the power device; and the high-voltage output port is connected with the positive electrode and the negative electrode on the measuring slide block. According to the invention, insulation tests of a plurality of insulating rods can be carried out at the same time without personnel participation during the test, so that the test manpower is saved, the test efficiency is improved, and the test is safer and faster. The device can be widely applied to the insulation test of the insulating rod.

Description

Technical Field

[0001] The invention belongs to the technical field of insulation detection, and in particular relates to an insulation resistance testing system for an insulating rod and a use method thereof. Background Art

[0002] Insulation rods are commonly used in power systems. Their main function is to support the conductors of power lines and various electrical equipment to prevent short circuits or contact, and to provide protection and insulation. The quality and performance of insulation rods are directly related to the safe operation of the power system, so they need to be strictly tested. During testing, a 2500V insulation megger or insulation monitor is required for segmented monitoring. The electrode width of the positive and negative electrodes used for testing is 2cm, and the inter-electrode width is 2cm.

[0003] The Chinese utility model patent with the authorization announcement number CN212459847U discloses a safety tool insulation resistance tester, which squeezes the conductive soft electrode on the handheld insulation resistance tester into contact with the insulating rod to be tested, and then manually slides the insulation resistance tester along the length direction of the insulating rod to be tested to test the insulation resistance of the insulating rod to be tested. The insulation resistance tester for the insulating rod is handheld, and can only test one insulating rod at a time during each test, so the test efficiency is relatively low. The measurement is performed by manual squeezing and then slowly sliding, and the squeezing force is difficult to be consistent, and the personnel need to manually fix the insulating rod during the test, which wastes human resources. During the test, the insulation resistance tester generates a high voltage of 2500V, and it is dangerous for personnel to hold it in their hands to operate. Summary of the invention

[0004] The purpose of the present invention is to provide an insulation resistance test system for an insulating rod, which can realize insulation test of multiple insulating rods at the same time, and does not require personnel to participate in the test, thus saving test manpower, improving test efficiency, and being safer and faster; The second object of the present invention is to provide a method for using an insulation rod insulation resistance test system, which is used to execute the above-mentioned insulation rod insulation resistance test system.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: An insulation resistance testing system for an insulating rod, the system comprising: at least one testing cabin and a host computer connected to the testing cabin; The detection chamber includes at least one detection module; The detection module includes a high-voltage output terminal including at least one pair of high-voltage output ports and a measurement module matching the number of high-voltage output ports; The measuring module comprises a power device for providing power to the transmission device, the transmission device, a slide rail fixedly arranged on the mounting plate, a measuring slide block with an insulating function provided with a positive electrode and a negative electrode, and upper and lower fixing clamps of an insulating rod; The upper and lower fixing clamps of the insulating rod are fixed on one side of the slide rail, the measuring slide block is slidably arranged on the slide rail, the positive electrode and the negative electrode on the measuring slide block are located on the surface of the slide rail where the upper and lower fixing clamps of the insulating rod are located, and the transmission device is located on the other side of the slide rail and is fixedly connected to the measuring slide block through a connecting device; The upper and lower fixing clamps of the insulating rod are respectively located at the upper and lower ends of the slide rail; The high voltage output port on the high voltage output terminal is connected to the positive electrode and the negative electrode on the measuring slider.

[0006] As a limitation, the transmission device includes a transmission wheel, a transmission belt, a tensioner wheel and a connecting device; The transmission wheel and the tension wheel are respectively located above and below the slide rail, the transmission belt is sleeved on the transmission wheel and the tension wheel, and the connecting device is arranged on the transmission belt; The connecting device is a transmission belt pressing plate, and the transmission belt pressing plate is detachably connected to the measuring slide block.

[0007] As a further limitation, the power unit includes a motor, a motor-fixing bearing seat, a bearing seat fixing bracket, and a motor-fixing bracket; The rotating bearing of the motor is connected with a transmission wheel and a motor fixed bearing seat in sequence; The motor is fixedly arranged on the mounting plate through a motor fixing bracket, and the motor fixing bearing seat is fixedly arranged on the mounting plate through a bearing seat fixing bracket.

[0008] As a second limitation, an electrode fixing insulating plate is provided on the measuring slider, and the positive electrode and the negative electrode are fixed on the measuring slider through the electrode fixing insulating plate.

[0009] As a third limitation, an upper limit switch and a lower limit switch are respectively provided on the upper end surface and the lower end surface of the measuring slider, which can stop the slider from moving; An upper limit stopper capable of triggering an upper limit switch and a lower limit stopper capable of triggering a lower limit switch are respectively arranged at the upper and lower fixing clamps of the insulating rod on the slide rail.

[0010] As a fourth limitation, the electrode width of the positive and negative electrodes on the measuring slider is 2 cm, and the width between the electrodes is 2 cm.

[0011] As a fifth limitation, the detection module is also provided with a communication interface connected to a host computer.

[0012] As a further limitation, a proximity sensor for detecting the presence of the insulating rod is provided at the upper fixing clamp of the insulating rod or the lower fixing clamp of the insulating rod; and a signal output end of the proximity sensor is connected to a host computer via a communication interface.

[0013] As a sixth limitation, the detection cabin is further provided with a temperature and humidity control module for controlling the temperature and humidity in the detection cabin; The temperature and humidity control module is connected to the host computer.

[0014] A method for using an insulating rod insulation resistance test system is used to execute the above-mentioned insulating rod insulation resistance test system, comprising the following steps performed in sequence: S1. Log in to the system operation interface on the host computer; S2. On the system operation interface, select the detection module number to be tested in the detection chamber; S3, placing the insulating rod to be tested into the detection module selected in step S2, and closing the door of the detection cabin; S4. Perform the outbound operation on the system operation interface, check the detection module number where the insulating rod to be tested is placed, and the system starts the insulation test; S5. Observe the test results to see if there are any unqualified products; If there are no defective products, proceed to step S6; If there is a defective product, the corresponding insulating rod to be tested is retested, and if the retest passes, step S6 is performed; if the retest fails, the insulating rod to be tested is determined to be a defective product; S6. Take out the insulating rods to be tested and replace them with the next batch for testing until the test is completed.

[0015] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art: (1) The present invention automatically performs insulation testing on the insulating rod by fixing the insulating rod and using the measuring slider on the slide rail to perform moving measurement. The upper computer can automatically perform insulation testing on multiple insulating rods at the same time, saving testing manpower, improving testing efficiency, and being safer and faster. (2) The present invention provides a slide rail and allows the measuring slider to slide on the slide rail for measurement, thereby ensuring the consistency of the contact pressure between the positive and negative electrodes and the insulating rod during the measurement process, thereby improving the stability of the measurement; (3) The present invention adds an electrode fixing insulating plate, which reduces the risk of current leakage of the positive and negative electrodes and improves the safety of the present invention when used; (4) The present invention adds upper and lower limit switches and upper and lower limit blocks, which can ensure that the test stroke is controlled and ensure that the insulating rod is effectively tested; (5) The present invention adds proximity sensors at the upper and lower fixing clamps of the insulating rod, which can detect whether the insulating rod in the measurement module is installed, making it easier for the host computer to display data; (6) The present invention provides a temperature and humidity control module in the test chamber, which can ensure that the insulating rod is in the best test environment during the test.

[0016] The invention belongs to the technical field of insulation monitoring, can perform insulation tests on multiple insulation rods at the same time, and does not require personnel participation during the tests, thus saving testing manpower, improving testing efficiency, and being safer and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] In the attached picture: Figure 1 is a system structure block diagram of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the front structure of the detection module in Example 1 of the present invention when the insulating rod is not installed; Figure 3 This is a schematic diagram of the left side structure of the detection module after the insulating rod is installed in Example 1 of the present invention; Figure 4 This is a schematic diagram of the structure of the detection module after the insulating rod is installed in Example 1 of the present invention; Figure 5 This is a processing flow chart of Embodiment 2 of the present invention; Figure 6 This is a diagram showing the main interface of the system operation interface in Example 2 of the present invention; Figure 7 This is a display diagram of the system operation interface warehousing interface in Example 2 of the present invention; Figure 8 This is a display diagram of the outbound interface of the system operation interface in Example 2 of the present invention.

[0019] In the figure, 1. high-voltage output terminal, 2. transmission wheel, 3. motor, 4. insulating rod upper fixing clamp, 5. upper limit stopper, 6. negative electrode, 7. positive electrode, 8. electrode fixing insulating plate, 9. slide rail, 10. transmission belt, 11. lower limit stopper, 12. insulating rod lower fixing clamp, 13. tensioning wheel, 14. communication interface, 15. high-voltage output port, 16. motor fixed bearing seat, 17. bearing seat fixing bracket, 18. motor fixing bracket, 19. proximity sensor, 20. upper limit switch, 21. lower limit switch, 22. transmission belt pressure plate, 23. measured insulating rod, 24. measuring slider. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example 1 An insulation resistance test system for an insulating rod This embodiment is an insulation resistance test system for an insulating rod. In this embodiment, there are six test chambers, each of which has four test modules. Figures 1 to 4 This embodiment is described in detail.

[0022] like Figure 1 As shown, this embodiment includes six detection cabins and a host computer connected to the detection cabins; each detection cabin is provided with four detection modules and a temperature and humidity control module.

[0023] like Figures 2 to 4 As shown, each detection module includes a high-voltage output terminal 1 having four pairs of high-voltage output ports 15 and four measurement modules matching the number of high-voltage output ports 15. The matching here means that one pair of high-voltage output ports 15 corresponds to one measurement module. The high-voltage output port 15 is located on the left side of the high-voltage output terminal 1 and transmits a 2500V voltage to the measurement module. A communication interface 14 connected to a host computer is provided on the right side of the high-voltage output terminal 1. The four measurement modules are vertically arranged below the high-voltage output terminal 1.

[0024] Each measuring module includes a power device, a transmission device, a slide rail 9 fixedly arranged on a mounting plate, a measuring slider 24 with an insulating function provided with a positive electrode 7 and a negative electrode 6, and upper and lower fixing clamps of an insulating rod. The upper and lower fixing clamps of the insulating rod are fixedly arranged on the front of the slide rail 9, the upper fixing clamp 4 of the insulating rod and the lower fixing clamp 12 of the insulating rod are respectively located at the upper and lower ends of the slide rail 9, the measuring slider 24 is slidably arranged on the slide rail 9, the transmission device is located on the back of the slide rail 9, and is used to drive the measuring slider 24 to move on the slide rail 9, and the power device provides power for the transmission device.

[0025] The transmission device includes a transmission wheel 2, a transmission belt 10, a tensioning wheel 13 and a transmission belt pressure plate 22. The transmission wheel 2 and the tensioning wheel 13 are respectively located above and below the back of the slide rail 9, and the distance between them is greater than the length of the slide rail 9. The transmission belt 10 is sleeved on the transmission wheel 2 and the tensioning wheel 13, and a transmission belt pressure plate 22 is provided on the transmission belt 10, and the transmission belt pressure plate 22 is fixedly connected to the measuring slider 24 through a threaded connection.

[0026] The power device includes a motor 3, a motor fixed bearing seat 16, a bearing seat fixed bracket 17 and a motor fixed bracket 18. The motor 3 is arranged at the transmission wheel 2, and the rotating bearing of the motor 3 is connected to the transmission wheel 2 and the motor fixed bearing seat 16 in sequence. In order to ensure the stability of the power output, the motor fixed bracket 18 and the bearing seat fixed bracket 17 are added, the motor fixed bracket 18 fixes the motor 3 on the mounting plate, and the bearing seat fixed bracket 17 fixes the motor fixed bearing seat 16 on the mounting plate.

[0027] An electrode fixing insulating plate 8 is provided on the front of the measuring slider 24, and the positive electrode 7 and the negative electrode 6 are fixed on the measuring slider 24 through the electrode fixing insulating plate 8. The high-voltage output port 15 is connected to the positive electrode 7 and the negative electrode 6 of the measuring slider 24 through a high-voltage silicone wire. The electrode width of the positive and negative electrodes is 2 cm, and the inter-electrode width is 2 cm. Since the distance between the transmission wheel 2 and the tensioning wheel 13 at both ends of the transmission belt 10 is greater than the length of the slide rail 9, in order to control the stroke of the slider, an upper limit switch 20 and a lower limit switch 21 that can stop the slider from moving are respectively provided on the upper end face and the lower end face of the slider in the moving direction. Correspondingly, an upper limit stopper 5 that can trigger the upper limit switch 20 and a lower limit stopper 11 that can trigger the lower limit switch 21 are respectively provided at the upper and lower fixing clamps of the insulating rod on the slide rail 9.

[0028] In order to ensure that the insulating rod 23 under test is installed on this embodiment during the test, a proximity sensor 19 for detecting whether the insulating rod 23 under test exists is provided at the fixing clamp 4 on the insulating rod. The signal output end of the proximity sensor 19 is connected to the host computer through the communication interface 14.

[0029] When this embodiment is used, the insulating rod 23 to be tested is first installed on the upper and lower fixing clamps of the insulating rod of each measuring module. At this time, the positive and negative electrodes 6 on the measuring slider 24 in each measuring module are in contact with the insulating rod 23 to be tested, and the initial position of the measuring slider 24 is located at the upper end or the lower end of the slide rail 9. The proximity sensor 19 detects whether the insulating rod 23 to be tested is placed, and uploads the detection result through the communication interface 14. Then, the driving motor 3 rotates, and the rotating bearing of the motor 3 drives the transmission wheel 2 to rotate, thereby driving the transmission belt 10 to move, and the transmission belt 10 drives the measuring slider 24 to slide from top to bottom or from bottom to top on the slide rail 9 through the transmission belt pressing plate 22, thereby performing an insulation test on the insulating rod 23 to be tested. Since the upper limit switch 20 and the lower limit switch 21 are provided on the measuring slider 24, when the measuring slider 24 moves downward until the lower limit switch 21 contacts the lower limit stopper 11, the insulation test stops; when the measuring slider 24 moves upward until the upper limit switch 20 contacts the upper limit stopper 5, the insulation test stops. After the test of the insulating rod 23 is completed, the communication interface 14 on the right side of the high-voltage output terminal 1 uploads the test result.

[0030] It should be noted that six detection chambers are provided in the present embodiment, four detection modules are provided in each detection chamber, and four pairs of high-voltage output ports 15 and four measuring modules are provided in each detection module, wherein the number of detection chambers, detection modules, high-voltage output ports 15 and measuring modules can be adjusted according to actual conditions, as long as the insulation test requirements are met. In the present embodiment, the transmission belt pressing plate 22 and the measuring slider 24 are fixedly connected by threads, and the fixed connection mode can be replaced according to actual conditions, as long as the transmission belt pressing plate 22 and the measuring slider 24 are detachably fixedly connected. In the present embodiment, the proximity sensor 19 is installed at the fixing clamp 4 on the insulating rod, and can be adjusted to the fixing clamp 12 under the insulating rod according to actual conditions.

[0031] Example 2: An insulation resistance test system for an insulating rod This embodiment is a method for using an insulating rod insulation resistance testing system, which is used to execute Example 1.

[0032] like Figure 5 As shown, this embodiment includes the following steps performed in sequence: S1. Log in to the system operation interface on the host computer.

[0033] In this embodiment, the detection module in the detection chamber is controlled on the host computer. First, you need to log in with your fingerprint and enter Figure 6 The main system operation interface is shown.

[0034] S2. On the system operation interface, select the detection module number to be tested in the detection chamber.

[0035] Click the "Warehouse Operation" button on the system operation interface to enter the following Figure 7 The warehousing operation interface is shown. On the warehousing operation interface, check the number of the test module to be tested in the corresponding test chamber.

[0036] S3, placing the insulating rod 23 to be tested into the testing module selected in step S2, and closing the door of the testing cabin.

[0037] After checking the detection module number on the system operation interface, the insulating rod 23 to be tested is placed into the corresponding detection module, and then the door of the detection cabin is closed.

[0038] S4. Perform the outbound operation on the system operation interface, check the detection module number where the tested insulating rod 23 is placed, and the system starts the insulation test.

[0039] After placing the insulating rod 23 to be tested, click the "Out of Warehouse Operation" button on the system operation interface to enter the following Figure 8The outbound operation interface shown is used to check the detection module number that needs to be detected on the outbound operation interface, and the system can start to perform insulation test on the insulating rod 23 under test.

[0040] S5. Observe the test results to see if there are any unqualified products; If there are no defective products, proceed to step S6; If there are unqualified products, the corresponding insulating rod 23 to be tested is retested. If the retest passes, step S6 is performed; if the retest fails, the insulating rod 23 to be tested is determined to be unqualified.

[0041] During the retest, the insulating rod 23 that failed the first insulation monitoring needs to be surface-wiped and put back into the detection module.

[0042] S6. Take out the insulating rods 23 to be tested and replace them with the next batch for testing until the test is completed.

Claims

1. An insulation resistance test system for an insulating rod, characterized in that: The system comprises: at least one detection cabin and a host computer connected to the detection cabin; The detection chamber includes at least one detection module; The detection module includes a high-voltage output terminal including at least one pair of high-voltage output ports and a measurement module matching the number of high-voltage output ports; The measuring module comprises a power device for providing power to the transmission device, the transmission device, a slide rail fixedly arranged on the mounting plate, a measuring slide block with an insulating function provided with a positive electrode and a negative electrode, and upper and lower fixing clamps of an insulating rod; The upper and lower fixing clamps of the insulating rod are fixed on one side of the slide rail, the measuring slide block is slidably arranged on the slide rail, the positive electrode and the negative electrode on the measuring slide block are located on the surface of the slide rail where the upper and lower fixing clamps of the insulating rod are located, and the transmission device is located on the other side of the slide rail and is fixedly connected to the measuring slide block through a connecting device; The upper and lower fixing clamps of the insulating rod are respectively located at the upper and lower ends of the slide rail; The high voltage output port on the high voltage output terminal is connected to the positive electrode and the negative electrode on the measuring slider.

2. The insulation resistance test system of an insulating rod according to claim 1, characterized in that: The transmission device comprises a transmission wheel, a transmission belt, a tensioning wheel and a connecting device; The transmission wheel and the tension wheel are respectively located above and below the slide rail, the transmission belt is sleeved on the transmission wheel and the tension wheel, and the connecting device is arranged on the transmission belt; The connecting device is a transmission belt pressing plate, and the transmission belt pressing plate is detachably connected to the measuring slide block.

3. The insulation resistance test system of an insulating rod according to claim 2, characterized in that: The power device comprises a motor, a motor fixing bearing seat, a bearing seat fixing bracket and a motor fixing bracket; The rotating bearing of the motor is connected with a transmission wheel and a motor fixed bearing seat in sequence; The motor is fixedly arranged on the mounting plate through a motor fixing bracket, and the motor fixing bearing seat is fixedly arranged on the mounting plate through a bearing seat fixing bracket.

4. The insulation resistance test system of an insulating rod according to claim 1, characterized in that: An electrode fixing insulating plate is arranged on the measuring slide block, and the positive electrode and the negative electrode are fixed on the measuring slide block through the electrode fixing insulating plate.

5. The insulation resistance test system of an insulating rod according to claim 1, characterized in that: An upper limit switch and a lower limit switch are respectively provided on the upper end surface and the lower end surface of the measuring slide block, which can stop the slide block from moving; An upper limit stopper capable of triggering an upper limit switch and a lower limit stopper capable of triggering a lower limit switch are respectively arranged at the upper and lower fixing clamps of the insulating rod on the slide rail.

6. The insulating rod insulation resistance testing system according to claim 1, characterized in that: The electrode width of the positive and negative electrodes on the measuring slider is 2 cm, and the width between the electrodes is 2 cm.

7. The insulation resistance test system of an insulating rod according to claim 1, characterized in that: The detection module is also provided with a communication interface connected to a host computer.

8. The insulation resistance test system of an insulating rod according to claim 7, characterized in that: A proximity sensor for detecting the presence of the insulating rod is provided at the upper fixing clamp of the insulating rod or the lower fixing clamp of the insulating rod; a signal output end of the proximity sensor is connected to the host computer through a communication interface.

9. The insulation resistance test system of an insulating rod according to claim 1, characterized in that: The detection cabin is also provided with a temperature and humidity control module for controlling the temperature and humidity in the detection cabin; The temperature and humidity control module is connected to the host computer.

10. A method for using an insulation rod insulation resistance test system, used to execute an insulation rod insulation resistance test system as claimed in any one of claims 1 to 9, characterized in that: The process includes the following steps: S1. Log in to the system operation interface on the host computer; S2. On the system operation interface, select the detection module number to be tested in the detection chamber; S3, placing the insulating rod to be tested into the detection module selected in step S2, and closing the door of the detection cabin; S4. Perform the outbound operation on the system operation interface, check the detection module number where the insulating rod to be tested is placed, and the system starts the insulation test; S5. Observe the test results to see if there are any unqualified products; If there are no defective products, proceed to step S6; If there is a defective product, the corresponding insulating rod to be tested is retested, and if the retest passes, step S6 is performed; if the retest fails, the insulating rod to be tested is determined to be a defective product; S6. Take out the insulating rods to be tested and replace them with the next batch for testing until the test is completed.

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