Multi-channel test system

Abstract

This utility model discloses a multi-channel testing system, relating to the field of testing equipment technology. The multi-channel testing system includes a testing platform, with a placement plate mounted on the upper part of the testing platform and a rotary motor mounted on the bottom of the testing platform. A rotating shaft is mounted on the output shaft of the rotary motor. The placement plate is rotatably connected to the testing platform via the rotating shaft. A first groove is provided around the top of the placement plate, and a bidirectional threaded rod is installed inside the first groove. One end of the bidirectional threaded rod is connected to a first drive motor via the placement plate. First sliders are symmetrically connected to both sides of the outer wall of the bidirectional threaded rod, and a clamping plate is mounted on the top of the first slider. This solution solves the problem that existing high-voltage circuit breaker testing devices are mostly used in a single-station mode. After testing one circuit breaker, it is necessary to manually remove and replace it with a new one, then reposition, clamp, and start the test again, resulting in long intervals between tests and low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a multi-channel testing system. Background Technology

[0002] High-voltage circuit breakers are critical equipment in power systems, typically with rated voltages exceeding 3kV. Their main functions include making and breaking currents, providing protection, and ensuring insulation and conductivity. Under normal operating conditions, high-voltage circuit breakers connect or disconnect load currents and quickly disconnect short-circuit currents during faults. In conjunction with relay protection devices, they prevent fault escalation and ensure the stable operation of the power grid. The primary purpose of testing high-voltage circuit breakers is to ensure their mechanical performance, electrical insulation, and operational reliability meet standards, thereby guaranteeing the safe and stable operation of the power system.

[0003] Traditional high-voltage circuit breaker testing devices are mostly used in single-station mode. After testing one circuit breaker, it is necessary to manually remove it, replace it with a new one, and then reposition, clamp, and start the test again. The interval between tests is long and the efficiency is low. Therefore, we have proposed a multi-channel testing system to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a multi-channel testing system to solve the problems mentioned in the background art. Existing high-voltage circuit breaker testing devices are mostly used in a single-station mode. After testing one circuit breaker, it is necessary to manually remove and replace it with a new one, and then reposition, clamp, and start the test again. This results in long intervals between tests and low efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel testing system, including a testing platform, a placement plate mounted on the upper part of the testing platform, a rotary motor mounted on the bottom of the testing platform, a rotating shaft mounted on the output shaft of the rotary motor, the placement plate being rotatably connected to the testing platform via the rotating shaft, a first groove being provided around the top of the placement plate, a bidirectional threaded rod being installed inside the first groove, a first drive motor being installed at one end of the bidirectional threaded rod via the placement plate, first sliders being symmetrically connected to both sides of the outer wall of the bidirectional threaded rod, a clamping plate being installed on the top of the first sliders, extension plates being installed on both sides and both ends of the placement plate, the extension plates being L-shaped, a first spring being installed on the side of the extension plate near the placement plate, a fixing post being installed at the center of the top of the placement plate, a second spring being installed on the sidewalls around the fixing post, and a limit plate being installed at the other end of the first spring and the second spring.

[0006] Preferably, the top of the test platform is provided with an annular groove, the cross-sectional shape of the annular groove is inverted T-shaped, and a sliding ring is slidably connected inside the annular groove. The cross-sectional shape of the sliding ring is I-shaped, and the sliding ring is fixedly connected to the bottom of the placement plate.

[0007] Preferably, both the first spring and the second spring have a telescopic rod installed inside.

[0008] Preferably, the test platform has a second groove on both sides of the top, a first threaded rod is installed inside the second groove, a second drive motor is installed on one side of the first threaded rod, and a second slider is threadedly connected to the outer wall of the first threaded rod.

[0009] Preferably, a slide rail is installed on the top of the second slider, a slide plate is slidably connected to one side of the two slide rails facing each other, a lifting plate is installed on the other side of the slide plate, and a test head is installed at the bottom of the lifting plate.

[0010] Preferably, a fixing plate is installed at the top and bottom of one side of the slide rail, a second threaded rod is installed between the two fixing plates, a third drive motor is installed at the top of the second threaded rod, the second threaded rod passes through the slide plate and is threadedly connected to the slide plate.

[0011] Preferably, a control panel is installed at the front end of the test platform, a PLC controller is installed on one side of the control panel, a pressure sensor is installed on one side of one of the clamping plates above the first groove, a rubber pad is installed on one side of the other clamping plate, and the output end of the pressure sensor is electrically connected to the input end of the PLC controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model realizes parallel operation of testing and loading / unloading through four-station rotation switching, reduces the interval between single tests, eliminates the need to stop the machine and wait for manual replacement of workpieces, greatly improves the efficiency of continuous testing, and solves the problem that existing high voltage circuit breaker testing devices are mostly in single-station mode during use. After testing one circuit breaker, it is necessary to manually remove and replace it with a new circuit breaker, and then reposition, clamp, and start the test again. The interval between single tests is long and the efficiency is low.

[0013] (2) By adjusting the spacing of the clamping plates with the first drive motor and adjusting the horizontal and vertical height of the test head with the second and third drive motors, it can adapt to high-voltage circuit breakers of different specifications, reducing equipment replacement costs. By controlling the clamping force and the position of the test head driven by the motor through the PLC controller, it can replace manual positioning and fixing, reduce human error, and ensure test consistency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a front cross-sectional view of the present invention. Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model; In the diagram: 1. Test platform; 2. Placement plate; 3. Rotary motor; 4. Rotating shaft; 5. First groove; 6. Bidirectional threaded rod; 7. First drive motor; 8. First slider; 9. Clamping plate; 10. Extension plate; 11. First spring; 12. Fixed column; 13. Second spring; 14. Telescopic rod; 15. Annular groove; 16. Slip ring; 17. Second groove; 18. First threaded rod; 19. Second drive motor; 20. Second slider; 21. Slide rail; 22. Sliding plate; 23. Fixed plate; 24. Second threaded rod; 25. Third drive motor; 26. Lifting plate; 27. Test head; 28. Control panel; 29. ​​PLC controller; 30. Pressure sensor; 31. Rubber pad; 32. Limit plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figure 1-4An embodiment of this utility model provides a multi-channel testing system, including a testing platform 1. A placement plate 2 is installed on the upper part of the testing platform 1, and a rotary motor 3 is installed at the bottom of the testing platform 1. A rotating shaft 4 is installed on the output shaft of the rotary motor 3. The placement plate 2 is rotatably connected to the testing platform 1 through the rotating shaft 4. A first groove 5 is provided around the top of the placement plate 2. A bidirectional threaded rod 6 is installed inside the first groove 5. A first drive motor 7 is installed at one end of the bidirectional threaded rod 6 through the placement plate 2. A first slider 8 is symmetrically connected to both sides of the outer wall of the bidirectional threaded rod 6. A clamping plate 9 is installed on the top of the first slider 8. Extension plates 10 are installed on both sides and both ends of the placement plate 2. The extension plates 10 are L-shaped. A first spring 11 is installed on the side of the extension plate 10 near the placement plate 2. A fixing post 12 is installed at the center of the top of the placement plate 2. A second spring 13 is installed on the side wall around the fixing post 12. A limit plate 32 is installed at the other end of the first spring 11 and the second spring 13. During use, the high-voltage circuit breaker to be tested is placed in the clamping area around the top of the placement plate 2. During placement, the second spring 13 around the fixing post 12 and the first spring 11 on the extension plate 10 provide initial elastic restraint to the circuit breaker through the limiting plate 32, reducing displacement during placement. After starting the clamping program, the first drive motor 7 drives the bidirectional threaded rod 6 to rotate, causing the two first sliders 8 in the same first groove 5 to move relative to the clamping plate 9, thus clamping the circuit breaker. During the clamping process, the pressure sensor 30 on one side of the clamping plate 9 detects the clamping force in real time and transmits the signal to the PLC controller 29. The PLC controller 29 controls the first drive motor 7 to stop rotating according to the preset clamping force parameters, completing stable clamping and avoiding damage from excessive tightness or shaking from excessive looseness. The rubber pad 31 on the other side can increase friction and buffer the clamping force, protecting the surface of the circuit breaker. The placement plate 2 is driven by the rotary motor 3 to rotate the rotating shaft 4, realizing station switching. During testing, circuit breakers can be loaded and unloaded at other idle stations while testing is being performed at two stations, reducing downtime. Please see Figure 3 The test platform 1 has two second grooves 17 on its top sides. A first threaded rod 18 is installed inside the second groove 17. A second drive motor 19 is installed on one side of the first threaded rod 18. A second slider 20 is threadedly connected to the outer wall of the first threaded rod 18. (See also...) Figure 3 The top of the second slider 20 is equipped with a slide rail 21. A slide plate 22 is slidably connected to one side of the opposing surfaces of the two slide rails 21. A lifting plate 26 is installed on the other side of the slide plate 22, and a test head 27 is installed at the bottom of the lifting plate 26. Please refer to [link / reference]. Figure 3 A fixing plate 23 is installed on the top and bottom of one side of the slide rail 21. A second threaded rod 24 is installed between the two fixing plates 23. A third drive motor 25 is installed on the top of the second threaded rod 24. The second threaded rod 24 passes through the slide plate 22 and is threadedly connected to the slide plate 22. Please refer to [link / reference]. Figure 2 and Figure 4 A control panel 28 is installed at the front end of the test platform 1. A PLC controller 29 is installed on one side of the control panel 28. A pressure sensor 30 is installed on one side of a clamping plate 9 above the first groove 5, and a rubber pad 31 is installed on one side of the other clamping plate 9. The output end of the pressure sensor 30 is electrically connected to the input end of the PLC controller 29. The position adjustment of the test head 27 is achieved through bidirectional linkage. The second drive motor 19 drives the first threaded rod 18 to rotate, causing the second slider 20 to move the slide rail 21 and the test head 27 horizontally, aligning them with the circuit breaker at the current test station. The third drive motor 25 drives the second threaded rod 24 to rotate, and the sliding plate 22, which is threadedly connected to the second threaded rod 24, slides up and down along the slide rail 21, causing the lifting plate 26 and the test head 27 to adjust their height and accurately align with the test point of the circuit breaker. After positioning, the test head 27 performs performance testing on the circuit breaker. The control panel 28 is used for parameter setting and status display. The PLC controller 29 can receive the clamping force signal from the pressure sensor 30 and the position feedback of each motor, and control the action of each motor according to the preset program to achieve full process automation.

[0017] Please see Figure 3 The test platform 1 has an annular groove 15 at its top. The annular groove 15 has an inverted T-shaped cross-section. A sliding ring 16 with an I-shaped cross-section is slidably connected inside the annular groove 15. The sliding ring 16 is fixedly connected to the bottom of the placement plate 2. The inverted T-shape of the annular groove 15 and the I-shape of the sliding ring 16 work together to ensure the stability of the placement plate 2 during rotation and prevent shaking from affecting the test accuracy.

[0018] Please see Figure 2 Both the first spring 11 and the second spring 13 have telescopic rods 14 installed inside. The circuit breaker is initially elastically limited by the combined action of the first spring 11, the second spring 13 and the limiting plate 32, reducing the offset during placement. The telescopic rods 14 can effectively prevent the first spring 11 and the second spring 13 from excessive deformation, ensuring the stability of the limit.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-channel testing system, comprising a testing platform (1), characterized in that: A placement plate (2) is installed on the upper part of the test platform (1), and a rotary motor (3) is installed on the bottom of the test platform (1). A rotating shaft (4) is installed on the output shaft of the rotary motor (3). The placement plate (2) is rotatably connected to the test platform (1) through the rotating shaft (4). A first groove (5) is provided around the top of the placement plate (2). A bidirectional threaded rod (6) is installed inside the first groove (5). A first drive motor (7) is installed at one end of the bidirectional threaded rod (6) through the placement plate (2). The two sides of the outer wall of the bidirectional threaded rod (6) are... A first slider (8) is symmetrically connected. A clamping plate (9) is installed on the top of the first slider (8). Extension plates (10) are installed on both sides and both ends of the placement plate (2). The extension plates (10) are L-shaped. A first spring (11) is installed on the side of the extension plate (10) close to the placement plate (2). A fixing post (12) is installed at the center of the top of the placement plate (2). A second spring (13) is installed on the sidewalls around the fixing post (12). A limit plate (32) is installed at the other end of the first spring (11) and the second spring (13).

2. The multi-channel testing system according to claim 1, characterized in that: The test platform (1) is provided with an annular groove (15) at the top. The annular groove (15) has an inverted T-shaped cross section. A sliding ring (16) is slidably connected inside the annular groove (15). The sliding ring (16) has an I-shaped cross section. The sliding ring (16) is fixedly connected to the bottom of the placement plate (2).

3. The multi-channel testing system according to claim 1, characterized in that: Both the first spring (11) and the second spring (13) have telescopic rods (14) installed inside them.

4. The multi-channel testing system according to claim 1, characterized in that: The test platform (1) has a second groove (17) on both sides of the top. A first threaded rod (18) is installed inside the second groove (17). A second drive motor (19) is installed on one side of the first threaded rod (18). A second slider (20) is threadedly connected to the outer wall of the first threaded rod (18).

5. The multi-channel testing system according to claim 4, characterized in that: The top of the second slider (20) is equipped with a slide rail (21), and a slide plate (22) is slidably connected to one side of the opposite face of the two slide rails (21). A lifting plate (26) is installed on the other side of the slide plate (22), and a test head (27) is installed at the bottom of the lifting plate (26).

6. The multi-channel testing system according to claim 5, characterized in that: A fixing plate (23) is installed on the top and bottom of one side of the slide rail (21). A second threaded rod (24) is installed between the two fixing plates (23). A third drive motor (25) is installed on the top of the second threaded rod (24). The second threaded rod (24) passes through the slide plate (22) and is threadedly connected to the slide plate (22).

7. The multi-channel testing system according to claim 1, characterized in that: The front end of the test platform (1) is equipped with a control panel (28), and a PLC controller (29) is installed on one side of the control panel (28). A pressure sensor (30) is installed on one side of one of the clamping plates (9) above the first groove (5), and a rubber pad (31) is installed on the other side of the clamping plate (9). The output end of the pressure sensor (30) is electrically connected to the input end of the PLC controller (29).

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