Testing mechanism for insulating rod insulation resistance testing device

Abstract

The utility model belongs to the technical field of insulation detection, and particularly discloses a testing mechanism for an insulating rod insulation resistance testing device, which comprises high-voltage output terminals with at least one pair of high-voltage output ports and measuring modules matched with the high-voltage output ports in number. The measuring module comprises a power device, a transmission device, a sliding rail, a measuring sliding block provided with a positive electrode and a negative electrode, an upper insulating rod fixing clamp and a lower insulating rod fixing clamp. The insulating rod upper fixing clamp and the insulating rod lower fixing clamp are located at the upper end and the lower end of the sliding rail respectively, the measuring sliding block is slidably arranged on the sliding rail, the transmission device drives the measuring sliding block to move on the sliding rail, and the power device provides power for the transmission 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 utility model, insulation tests of a plurality of insulating rods can be carried out at the same time without participation of personnel, so that the test manpower is saved, the test efficiency is improved, and the test is safer and faster. The device is suitable for the insulation test of the insulating rod.

Description

Technical Field

[0001] This utility model belongs to the field of insulation testing technology, and specifically relates to a testing mechanism for an insulation resistance testing device for an insulating rod. Background Technology

[0002] Insulating rods are commonly used insulating support structures in power systems. Their main function is to support power line conductors and various electrical equipment, preventing short circuits or contact damage, thus providing protection and insulation. The quality and performance of insulating rods directly affect the safe operation of the power system, therefore, they require rigorous testing. Testing should be conducted using a 2500V insulation tester or insulation monitoring instrument for segmented monitoring. The electrode width for both positive and negative electrodes used for testing should be 2cm, and the distance between the electrodes should be 2cm.

[0003] Chinese utility model patent CN212459847U discloses a safety tool insulation resistance tester. The tester involves pressing a conductive soft electrode on a handheld insulation resistance tester into contact with the insulating rod being tested, and then manually sliding the tester along the length of the rod to measure its insulation resistance. This handheld insulation resistance tester can only test one rod at a time, resulting in relatively low testing efficiency. The manual pressing and slow sliding method makes it difficult to maintain consistent pressure, and the tester requires constant manual control of the rod, wasting manpower. Furthermore, the tester generates a high voltage of 2500V during testing, which is dangerous to operate while holding it in one's hand. Summary of the Invention

[0004] The purpose of this invention is to provide a testing mechanism for an insulation resistance testing device for insulating rods. This invention can perform insulation tests on multiple insulating rods simultaneously without the need for personnel intervention, thus saving manpower, improving testing efficiency, and making the process safer and faster.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A testing mechanism for an insulation resistance testing device for an insulating rod includes a high-voltage output terminal having at least one pair of high-voltage output ports and a measuring module matching the number of high-voltage output ports;

[0007] The measurement module includes a power unit that provides power to the transmission device, the transmission device, a slide rail fixedly mounted on the mounting plate, an insulated measuring slider with positive and negative electrodes, and upper and lower fixing clamps for the insulating rod.

[0008] The upper and lower fixing clamps of the insulating rod are fixed to one side of the slide rail, the measuring slider is slidably set on the slide rail, the positive and negative electrodes on the measuring slider are located on the side 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 slider through the connecting device.

[0009] The upper and lower fixing clamps of the insulating rod are located at the upper and lower ends of the slide rail, respectively;

[0010] The high-voltage output port on the high-voltage output terminal is connected to the positive and negative electrodes on the measuring slider.

[0011] As a limitation, the transmission device includes a transmission wheel, a transmission belt, a tensioner, and a connecting device;

[0012] The drive wheel and tension wheel are located above and below the slide rail, respectively. The drive belt is sleeved on the drive wheel and tension wheel, and the connecting device is located on the drive belt.

[0013] The connecting device is a transmission belt pressure plate, which is detachably connected to the measuring slider.

[0014] As a further limitation, the power unit includes a motor, a motor mounting bearing housing, a bearing housing mounting bracket, and a motor mounting bracket;

[0015] A drive wheel and a motor fixed bearing housing are connected sequentially to the rotating bearing of the motor.

[0016] The motor is fixedly mounted on the mounting plate by a motor mounting bracket, and the motor bearing housing is fixedly mounted on the mounting plate by a bearing housing mounting bracket.

[0017] As a second limitation, the measuring slider is provided with an electrode fixing insulating plate, and the positive electrode and the negative electrode are fixed on the measuring slider by the electrode fixing insulating plate.

[0018] As a third limitation, the upper and lower end faces of the measuring slider are respectively provided with an upper limit switch and a lower limit switch that can stop the slider from moving.

[0019] The slide rail is equipped with an upper limit stop block that can trigger the upper limit switch and a lower limit stop block that can trigger the lower limit switch at the upper and lower fixed clamps of the insulating rod, respectively.

[0020] As a fourth limitation, the electrode width of the positive and negative electrodes on the measuring slider is 2cm, and the inter-electrode width is 2cm.

[0021] As a fifth limitation, the insulation resistance testing device for the insulating rod is also equipped with a communication interface for connection to a host computer.

[0022] As a further limitation, a proximity sensor for detecting the presence of the insulating rod is provided at the upper or lower fixing clamp of the insulating rod; the signal output terminal of the proximity sensor is connected to the host computer through a communication interface.

[0023] The technological advancements achieved by this invention compared to existing technologies, due to the adoption of the aforementioned technical solution, are as follows:

[0024] (1) This utility model performs automatic insulation testing on insulating rods by moving the measuring slider on the slide rail after fixing the insulating rod. It can perform insulation testing on multiple insulating rods at the same time, saving manpower, improving testing efficiency, and making it safer and faster.

[0025] (2) By setting a slide rail, the present invention ensures that the contact pressure between the positive and negative electrodes and the insulating rod is consistent during the measurement process, thereby improving the stability of the measurement.

[0026] (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 during use.

[0027] (4) This utility model adds upper and lower limit switches and upper and lower limit blocks, which can ensure that the test stroke is controlled and that the insulating rod is effectively tested;

[0028] (5) The present invention adds proximity sensors to the upper and lower fixing clamps of the insulating rod, which can detect whether the insulating rod is installed in the measuring module.

[0029] This invention belongs to the field of insulation monitoring technology. It can perform insulation tests on multiple insulating rods simultaneously without the need for personnel to participate in the testing, thus saving manpower, improving testing efficiency, and making the process safer and faster. Attached Figure Description

[0030] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0031] In the attached diagram:

[0032] Figure 1 This is a front view of the structure without the insulating rod installed in this embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the left side structure after the insulating rod is installed in an embodiment of this utility model;

[0034] Figure 3 This is a bottom view of the structure after the insulating rod is installed in an embodiment of this utility model.

[0035] In the diagram: 1. High-voltage output terminal, 2. Transmission wheel, 3. Motor, 4. Upper clamp on insulating rod, 5. Upper limit stop, 6. Negative electrode, 7. Positive electrode, 8. Electrode fixing insulating plate, 9. Slide rail, 10. Transmission belt, 11. Lower limit stop, 12. Lower clamp on insulating rod, 13. Tensioner wheel, 14. Communication interface, 15. High-voltage output port, 16. Motor fixing 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. Insulating rod under test, 24. Measuring slider. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] Example 1: A testing mechanism for an insulation resistance testing device for an insulating rod

[0038] This embodiment is used to test the insulation resistance of an insulating rod. The following is in conjunction with... Figures 1 to 3 This embodiment will be described in detail.

[0039] This embodiment describes a testing mechanism for an insulation resistance testing device for an insulating rod, comprising a high-voltage output terminal 1 with four pairs of high-voltage output ports 15 and four measuring modules matching the number of high-voltage output ports 15. Here, "matching" means that one pair of high-voltage output ports 15 corresponds to one measuring module. The high-voltage output ports 15 are located to the left of the high-voltage output terminal 1, supplying 2500V voltage to the measuring modules. A communication interface 14 for connection to a host computer is provided to the right of the high-voltage output terminal 1. The four measuring modules are vertically arranged below the high-voltage output terminal 1.

[0040] Each measuring module includes a power unit, a transmission unit, a slide rail 9 fixedly mounted on a mounting plate, an insulated measuring slider 24 with positive electrode 7 and negative electrode 6, and upper and lower fixing clamps for the insulating rod. The upper and lower fixing clamps for the insulating rod are fixedly mounted on the front of the slide rail 9, the upper fixing clamp 4 and the lower fixing clamp 12 for the insulating rod are located at the upper and lower ends of the slide rail 9, respectively, the measuring slider 24 is slidably mounted on the slide rail 9, the transmission unit 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 unit provides power to the transmission unit.

[0041] 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 located above and below the back of the slide rail 9, respectively, 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 the transmission belt pressure plate 22 is provided on the transmission belt 10. The transmission belt pressure plate 22 is fixedly connected to the measuring slider 24 by a threaded connection.

[0042] The power unit includes a motor 3, a motor mounting bearing housing 16, a bearing housing mounting bracket 17, and a motor mounting bracket 18. The motor 3 is located at the transmission wheel 2, and the rotating bearing of the motor 3 is sequentially connected to the transmission wheel 2 and the motor mounting bearing housing 16. To ensure the stability of the power output, the motor mounting bracket 18 and the bearing housing mounting bracket 17 are added. The motor mounting bracket 18 fixes the motor 3 to the mounting plate, and the bearing housing mounting bracket 17 fixes the motor mounting bearing housing 16 to the mounting plate.

[0043] The front of the measuring slider 24 is provided with an electrode fixing insulating plate 8. The positive electrode 7 and the negative electrode 6 are fixed to 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 2cm, and the inter-electrode width is 2cm. Since the distance between the transmission wheel 2 and the tension 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 are respectively provided on the upper and lower end faces of the slider in the direction of movement to stop the slider. Correspondingly, the slide rail 9 is provided with an upper limit stop block 5 that can trigger the upper limit switch 20 and a lower limit stop block 11 that can trigger the lower limit switch 21 at the upper and lower fixing clamps of the insulating rod.

[0044] To ensure that the insulating rod 23 under test is installed on this embodiment during testing, a proximity sensor 19 is provided at the fixing clip 4 on the insulating rod to detect the presence of the insulating rod 23 under test. The signal output terminal of the proximity sensor 19 is connected to the host computer through the communication interface 14.

[0045] In this embodiment, the four insulating rods 23 to be tested are first installed on the upper and lower fixing clamps of the insulating rods of the four measuring modules. At this time, the positive electrode 7 and negative electrode 6 on the measuring slider 24 are in contact with the insulating rods 23 to be tested, and the initial position of the measuring slider 24 is located at the upper or lower end of the slide rail 9. The proximity sensor 19 detects whether the insulating rods 23 to be tested are placed and uploads the detection result through the communication interface 14. Then, the drive motor 3 rotates, and the rotating bearing of the motor 3 drives the transmission wheel 2 to rotate, which in turn drives the transmission belt 10 to move. 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 pressure plate 22, thereby performing an insulation test on the insulating rods 23 to be tested. Since the measuring slider 24 is equipped with an upper limit switch 20 and a lower limit switch 21, the insulation test stops when the measuring slider 24 moves downward until the lower limit switch 21 contacts the lower limit stop 11; the insulation test stops when the measuring slider 24 moves upward until the upper limit switch 20 contacts the upper limit stop 5. After the four tested insulating rods 23 are tested, the communication interface 14 on the right side of the high voltage output terminal 1 will upload the test results.

[0046] It should be noted that this embodiment includes four pairs of high-voltage output ports 15 and four measuring modules. The number of high-voltage output ports 15 and measuring modules can be adjusted according to actual conditions, as long as the numbers match. In this embodiment, the transmission belt pressure plate 22 and the measuring slider 24 are fixedly connected by threads. The fixing connection method can be changed according to actual conditions, as long as the transmission belt pressure plate 22 and the measuring slider 24 are detachably fixedly connected. In this embodiment, the proximity sensor 19 is mounted on the insulating rod at the fixing clip 4, and can be adjusted to the fixing clip 12 below the insulating rod according to actual conditions.

Claims

1. A testing mechanism for an insulation resistance testing device for an insulating rod, characterized in that, It includes a high-voltage output terminal with at least one pair of high-voltage output ports and a measurement module matching the number of high-voltage output ports; The measurement module includes a power unit that provides power to the transmission device, the transmission device, a slide rail fixedly mounted on the mounting plate, an insulated measuring slider with positive and negative electrodes, and upper and lower fixing clamps for the insulating rod. The upper and lower fixing clamps of the insulating rod are fixed to one side of the slide rail, the measuring slider is slidably set on the slide rail, the positive and negative electrodes on the measuring slider are located on the side 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 slider through the connecting device. The upper and lower fixing clamps of the insulating rod are located at the upper and lower ends of the slide rail, respectively; The high-voltage output port on the high-voltage output terminal is connected to the positive and negative electrodes on the measuring slider.

2. The testing mechanism for an insulation resistance testing device for an insulating rod according to claim 1, characterized in that, The transmission device includes a transmission wheel, a transmission belt, a tensioner, and a connecting device; The drive wheel and tension wheel are located above and below the slide rail, respectively. The drive belt is sleeved on the drive wheel and tension wheel, and the connecting device is located on the drive belt. The connecting device is a transmission belt pressure plate, which is detachably connected to the measuring slider.

3. The testing mechanism for an insulation resistance testing device for an insulating rod according to claim 2, characterized in that, The power unit includes a motor, a motor mounting bearing housing, a bearing housing mounting bracket, and a motor mounting bracket. A drive wheel and a motor fixed bearing housing are connected sequentially to the rotating bearing of the motor. The motor is fixedly mounted on the mounting plate by a motor mounting bracket, and the motor bearing housing is fixedly mounted on the mounting plate by a bearing housing mounting bracket.

4. A testing mechanism for an insulation resistance testing device for an insulating rod according to any one of claims 1 to 3, characterized in that, The measuring slider is equipped with an electrode fixing insulating plate, and the positive electrode and the negative electrode are fixed to the measuring slider by the electrode fixing insulating plate.

5. A testing mechanism for an insulation resistance testing device for an insulating rod according to any one of claims 1 to 3, characterized in that, The upper and lower end faces of the measuring slider are respectively provided with an upper limit switch and a lower limit switch that can stop the slider from moving. The slide rail is equipped with an upper limit stop block that can trigger the upper limit switch and a lower limit stop block that can trigger the lower limit switch at the upper and lower fixed clamps of the insulating rod, respectively.

6. A testing mechanism for an insulation resistance testing device for an insulating rod according to any one of claims 1 to 3, characterized in that, The electrode width of the positive and negative electrodes on the measuring slider is 2cm, and the inter-electrode width is 2cm.

7. The testing mechanism for an insulation resistance testing device for an insulating rod according to claim 1, characterized in that, The insulation resistance testing device for the insulating rod is also equipped with a communication interface that connects to a host computer.

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

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