A power distribution cabinet anti-seismic performance testing device and method

Abstract

This invention provides a device and method for testing the seismic performance of a power distribution cabinet. The device includes: a frame; a base plate disposed directly above the frame, on which the power distribution cabinet is placed for testing; a vibration mechanism disposed between the frame and the base plate, used to perform vibration performance testing on the base plate at different response levels; a first detection mechanism for acquiring first test information during testing; and a second detection mechanism for acquiring second test information from the outside and inside of the device under test in real time. According to this invention, by using a vibration mechanism to test the base plate with different response parameters, the vibration performance of the power distribution cabinet can be comprehensively considered, and its seismic performance under different levels of vibration can be tested. Combining the first and second test information, the corresponding seismic performance can be accurately obtained. By importing the first test information into a response level model, the actual test level can be obtained, thus obtaining the test level corresponding to the test result.

Description

Technical Field

[0001] This invention relates to the field of seismic testing technology, specifically to a device and method for testing the seismic performance of a power distribution cabinet. Background Technology

[0002] Distribution cabinets are an important component of the power system. They are mainly used for power distribution and control. When distribution cabinets are subjected to earthquakes or major vibrations, they are easily damaged, which can cause power outages. Therefore, they need to be tested and evaluated during the production process to verify the seismic resistance of the distribution cabinets and their equipment under vibration or earthquake conditions.

[0003] In the existing technology for seismic performance testing of distribution cabinets, the actual testing process is affected by different equipment specifications, resulting in different vibration performance when facing vibration tests. This leads to errors in the test results and cannot obtain accurate test levels and seismic performance. Meanwhile, since it cannot be adjusted according to different test specifications during testing, this invention studies and designs a device and method for testing the seismic performance of power distribution cabinets. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a device and method for testing the seismic performance of power distribution cabinets.

[0005] To address the above problems, the present invention provides a device and method for testing the seismic performance of a power distribution cabinet, comprising: Frame; A base plate is positioned directly above the frame, and the base plate is used to place the power distribution cabinet for testing. A vibration mechanism is provided between the frame and the base plate to perform vibration performance tests on the base plate at different response levels; The first testing mechanism is detachably provided with two at both ends of the base plate, and the testing ends of the first testing mechanism respectively abut against both ends of the receiving testing device to obtain the first test information during the test; The second testing mechanism is respectively set on both sides of the frame and located at the inner top of the device under test, and is used to acquire the second test information of the outside and inside of the device under test in real time. A control device, the control device package being configured to set the speed required by the vibration mechanism to a plurality of response parameters for response testing via a programmable program; The control device is connected to the vibration mechanism, the first detection mechanism, and the second detection mechanism, and is used to perform vibration performance testing on the vibration mechanism, obtain first test information from the first detection mechanism, and obtain second test information from the second detection mechanism; the control device is also connected to a processor.

[0006] Preferably, a first mounting plate is provided on each of the two side edges of the frame, and a first rotating seat is provided on the side of the first mounting plate away from the frame. The first rotating seat and the first mounting plate are rotatably connected, and a gap is provided between each end of the frame and the bottom plate. The base plate has multiple mounting holes evenly arranged in a rectangular array; The bottom of the base plate is provided with a support frame, and upright plates are provided on both sides of the support frame. Second mounting plates are provided on the two ends of the upright plates. A rotating shaft is provided on the side of the second mounting plate away from the upright plate. A second rotating seat is sleeved on the outside of the rotating shaft. The second rotating seat and the rotating shaft are rotatably connected. A set of opposing positioning plates is provided on the side of the first rotating seat away from the first mounting plate, and a positioning frame is provided on the side of the second rotating seat away from the upright plate. A linkage mechanism is provided between each of the first rotating seats and the second rotating seat, and the two ends of the linkage mechanism are respectively connected to a set of positioning plates and the positioning frame.

[0007] Preferably, the linkage mechanism includes: a linkage rod and a linkage sleeve, the linkage rod is disposed inside the linkage sleeve and the linkage rod and the linkage sleeve are slidably connected, one end of the linkage rod is connected to the positioning frame, and the linkage sleeve is connected to a pair of positioning plates; The linkage sleeve has a plurality of first screw holes evenly arranged on its two opposite sides along its length direction. The linkage rod has a first through hole corresponding to the first screw hole. A first adjusting member is provided between the linkage rod and the linkage sleeve to screw the first screw hole and pass through the first through hole respectively.

[0008] Preferably, the vibration mechanism includes: a fixed plate, two fixed plates symmetrically arranged on both sides of the frame, with the fixed plate close to one end of the frame; a support seat is provided on each fixed plate; a U-shaped connecting rod is provided between the two support seats; the two ends of the U-shaped connecting rod are rotatably connected to the two support seats respectively; a motor is provided near one of the fixed plates; and the output shaft of the motor is connected to one end of the U-shaped connecting rod. A linkage component is connected to the middle of the U-shaped connecting rod. A rotating cylinder is provided at one end of the linkage component. The rotating cylinder is sleeved in the middle of the U-shaped connecting rod and the rotating cylinder and the U-shaped connecting rod are rotatably connected. A rotating part is provided at the other end of the linkage component. A connecting part is provided at the bottom of the support frame near the rotating part. The linkage component is rotatably connected through the rotating part and the connecting part.

[0009] Preferably, the first detection mechanism includes: a first sleeve and a first rod, the first rod being disposed inside the first sleeve and slidably connected to the first sleeve, a through hole being provided at one end of the first rod away from the first sleeve, a sliding rod being disposed inside the through hole, a detection end being provided at one end of the sliding rod, the other end of the sliding rod passing through the through hole, and a limit part being provided at the other end of the sliding rod, a spring being disposed on the sliding rod, and the two ends of the spring respectively abutting against the first rod at the edge of the through hole and the detection end; A pressure sensor is provided at the end of the detection end away from the first sleeve rod, and the pressure sensor is connected to the processor; A first connecting plate is provided at the end of the first sleeve away from the first sleeve rod. The first connecting plate is perpendicularly connected to the end of the first sleeve. The first connecting plate is provided with a plurality of third through holes that are adapted to the mounting holes along its length direction. When the first connecting plate abuts against the base plate, a third adjusting member is provided between the first connecting plate and the base plate to screw the mounting holes and the through holes respectively. The first sleeve has a plurality of second screw holes evenly arranged on its two opposite sides along its length direction. The first sleeve rod has a second through hole corresponding to the second screw hole. A second adjusting member is provided between the first sleeve and the first sleeve rod to screw the second screw hole and the second through hole respectively.

[0010] Preferably, the second detection mechanism includes: a data acquisition end connected to the processor, the data acquisition end being respectively disposed on both sides of the frame and at the center of the inner top of the device to be tested, the data acquisition ends located on both sides of the frame being disposed at one end of the second sleeve rod, the other end of the second sleeve rod being slidably disposed inside the second sleeve, a plurality of third screw holes being uniformly disposed on the opposite two sides of the second sleeve along its length direction, a fourth through hole corresponding to the third screw hole being disposed on the second sleeve rod, and a fourth adjusting member being disposed between the second sleeve and the second sleeve rod to respectively screw the third screw hole and pass through the fourth through hole; The second sleeve is vertically connected to a second connecting plate at the end away from the second sleeve rod, and the second connecting plate is respectively located at the middle position on both sides of the frame.

[0011] Preferably, the base plate is further provided with a positioning mechanism, the positioning mechanism including: an L-shaped block, the two right-angled sides of the L-shaped block being used to abut against the device to be tested, the two right-angled sides of the L-shaped block being respectively provided with a first positioning hole and a second positioning hole facing the device to be tested, the first positioning hole and the second positioning hole being respectively provided with abutting members, the abutting members being screwed to the first positioning hole and the second positioning hole respectively, the abutting members being provided with an abutting part at one end of the two right-angled sides of the L-shaped block, and an adjusting block being provided at the other end of the abutting members; The L-shaped block is also provided with a fixing part, and a fifth through hole adapted to the mounting hole is provided in the fixing part. A fifth adjusting member is provided between the L-shaped block and the base plate to respectively screw the mounting hole and the fifth through hole.

[0012] The present invention also provides a method for testing the seismic performance of a power distribution cabinet, comprising the seismic performance testing device for a power distribution cabinet as described in any of the preceding claims, and comprising the following steps: S1: Install the power distribution cabinet to be tested on the base plate, and adjust the swing amplitude of the vibration mechanism according to the preset test target; S2: The control device configures the response parameters required by the vibration mechanism according to the test requirements, and acquires the first test information and the second test information in real time based on the response parameters, and analyzes them to obtain the test results; S3: Import the first test information into the response level model to obtain the actual test level, and get the test level corresponding to the test result.

[0013] Preferably, in step S2, the first test information and the second test information are acquired in real time, and the results are obtained after analysis: The system acquires first test information and second test information in real time, and acquires the first change amount and the second change amount of the first test information and the second test information per unit time, respectively. The first change amount and the second change amount acquired in real time are compared with the change amount thresholds of the first test information and the second test information. If the first change amount and the second change amount are respectively within the change amount thresholds of the first test information and the second test information, then both the first test information and the second test information can be used as test results. Otherwise, the swing amplitude of the vibration mechanism is readjusted, and the first test information and the second test are reacquired based on the response parameters until the first change and the second change obtained in real time are respectively within the change threshold of the first test information and the change threshold of the second test information.

[0014] Preferably, the response level model is: Using the first test information as the independent variable and the response level as the dependent variable, a response level model corresponding to the first test information is generated.

[0015] The seismic performance testing device and method for power distribution cabinets provided by this invention have the following beneficial effects: 1. This invention uses a vibration mechanism to test the vibration performance of the base plate with different response parameters, enabling a comprehensive assessment of the distribution cabinet and testing its seismic performance under different levels of vibration. Two first detection mechanisms are detachably installed at both ends of the base plate, and can be adjusted relative to the specifications of the distribution cabinet, so that the test ends of the first detection mechanisms abut against both ends of the distribution cabinet under test to obtain the first test information. Second detection mechanisms are installed on both sides of the frame and at the inner top of the device under test, respectively, to acquire second test information from the outside and inside of the device under test in real time. Combining the first and second test information allows for accurate determination of the corresponding seismic performance. 2. The present invention also involves mounting the power distribution cabinet to be tested on the base plate when facing equipment of different specifications, adjusting the swing amplitude of the vibration mechanism according to the preset test target, and assembling L-shaped blocks at the four bottom corners of the power distribution cabinet to fix it.

[0016] 3. The present invention also obtains the actual test level by importing the first test information into the response level model, and obtains the test level corresponding to the test result. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall assembly of the present invention; Figure 2 This is a schematic diagram of the L-shaped block structure installation of the present invention; Figure 3 This is a schematic diagram of the connection structure of the present invention. Figure 4 This is a schematic diagram of the linkage structure installation of the present invention; Figure 5 This is a schematic diagram of the installation of the fourth adjusting component of the present invention; Figure 6 This is a schematic diagram of the installation of the detection end structure of the present invention; Figure 7 This is a schematic diagram of the installation of the abutment structure of the present invention; Figure 8 This is a schematic diagram of the installation of the linkage structure of the present invention.

[0018] The reference numerals in the attached figures are as follows: 1. Frame; 2. Base plate; 3. First mounting plate; 4. First rotating seat; 5. Support frame; 6. Vertical plate; 7. Second mounting plate; 8. Rotating shaft; 9. Second rotating seat; 10. Positioning plate; 11. Positioning frame; 12. Linkage rod; 13. Linkage sleeve; 14. First screw hole; 15. First adjusting component; 16. Fixing plate; 17. Support seat; 18. Z-shaped connecting rod; 19. Motor; 20. Linkage component; 21. Rotating cylinder; 22. Rotating part; 23. Connecting part; 24. First sleeve; 25. First sleeve rod; 26. Sliding rod; 27. Detection end; 28. Limiting part; 29. ​​Spring; 30. First connecting plate; 31. Third through hole; 32. Third adjusting component; 33. Second screw hole; 34. Second through hole; 35. Second adjusting component; 36. Acquisition end; 37. Second sleeve rod; 38. Second sleeve; 39. Third screw hole; 40. Fourth through hole; 41. Fourth adjusting component; 42. Second connecting plate; 43. L-shaped block; 44. First positioning hole; 45. Second positioning hole; 46. Abutting component; 47. Abutting part; 48. Adjusting block; 49. Fixing part; 50. Fifth through hole; 51. Fifth adjusting component. Detailed Implementation

[0019] like Figure 1-8 As shown, the present invention provides a device and method for testing the seismic performance of a power distribution cabinet, comprising: Frame 1; The base plate 2 is located directly above the frame 1, and the power distribution cabinet is placed on the base plate 2 for testing. A vibration mechanism is disposed between the frame 1 and the base plate 2, and is used to test the vibration performance of the base plate 2 with different response parameters. The first testing mechanism is detachably provided with two at both ends of the base plate 2, and the testing ends of the first testing mechanism respectively abut against both ends of the receiving testing device to obtain the first test information during the test; The second testing mechanism is respectively set on both sides of the frame 1 and located at the inner top of the device under test, and is used to acquire the second test information of the outside and inside of the device under test in real time. A control device configured to set the required speed of the vibration mechanism to a plurality of response parameters for response testing via a programmable program; The control device is connected to the vibration mechanism, the first detection mechanism, and the second detection mechanism, and is used to perform vibration performance testing on the vibration mechanism, obtain first test information from the first detection mechanism, and obtain second test information from the second detection mechanism, respectively. The control device is also connected to a processor. For example... Figure 1-8As shown, a seismic performance testing device for a power distribution cabinet includes a frame 1 that supports and assembles other components, a base plate 2 mounted directly above the frame 1, and a power distribution cabinet to be tested placed on the base plate 2. The base plate 2 and the frame 1 are movably connected. A vibration mechanism is used to test the vibration performance of the base plate 2 with different response parameters, allowing for a comprehensive evaluation of the power distribution cabinet and testing its seismic performance under different levels of vibration. Two first detection mechanisms are detachably mounted at both ends of the base plate 2, and can be adjusted relative to the specifications of the power distribution cabinet so that the test ends of the first detection mechanisms abut against both ends of the power distribution cabinet to obtain initial test information. Second detection mechanisms are respectively mounted on both sides of the frame 1 and at the base plate 2. The inner top of the device is used to acquire second test information from both the exterior and interior of the device under test in real time. Combining the first and second test information allows for accurate acquisition of its corresponding seismic performance. The control unit is configured to set multiple response parameters for the vibration mechanism's required speed using a programmable program, enabling testing under different response parameters to simulate different levels of vibration and conduct comprehensive seismic performance testing. The logic control module connects to the vibration mechanism, the first detection mechanism, and the second detection mechanism, and is used to perform vibration performance testing on the vibration mechanism, acquire the first test information from the first detection mechanism, and acquire the second test information from the second detection mechanism. The control unit is connected to a processor.

[0020] In some embodiments, a first mounting plate 3 is provided on each of the two sides of the frame 1, and a first rotating seat 4 is provided on the side of the first mounting plate 3 away from the frame 1. The first rotating seat 4 and the first mounting plate 3 are rotatably connected, and a gap is provided between each end of the frame 1 and the bottom plate 2. The base plate 2 has multiple mounting holes evenly arranged in a rectangular array; The bottom of the base plate 2 is provided with a support frame 5, and upright plates 6 are provided on both sides of the support frame 5. Second mounting plates 7 are provided on both ends of the upright plates 6. A rotating shaft 8 is provided on the side of the second mounting plate 7 away from the upright plate 6. A second rotating seat 9 is sleeved on the outside of the rotating shaft 8. The second rotating seat 9 and the rotating shaft 8 are rotatably connected. A set of opposing positioning plates 10 is provided on the side of the first rotating seat 4 away from the first mounting plate 3. A positioning frame 11 is provided on the side of the second rotating seat 9 away from the upright plate 6. A linkage mechanism is provided between each of the first rotating seat 4 and the second rotating seat 9, and the two ends of the linkage mechanism are respectively connected to a set of positioning plates 10 and a positioning frame 11. Figure 1-8As shown, the connection between the first mounting plate 3 and the frame 1 can be by bolting, welding, or bonding. The connection between the first rotating seat 4 and the first mounting plate 3 can be achieved by connecting one end of a rotating shaft to the first mounting plate 3, with both ends of the rotating shaft rotatably connected to the rotating seat. The frame 1 has pre-reserved clearances at both ends for the base plate 2 to move under the drive of the vibration mechanism, ensuring that the base plate 2's ends are not affected when tilted downwards towards the frame 1. The base plate 2 has multiple mounting holes evenly arranged in a rectangular array, penetrating vertically downwards from the top of the bottom of the base plate 2, facilitating the detachable connection of the first detection mechanism to the base plate 2. Threads can be provided within the mounting holes. The connections between the base plate 2 and the support frame 5, the support frame 5 and the upright plate 6, the second mounting plate 7 and the upright plate 6, and the upright plate 6 and one end of the rotating shaft 8 can all be by bolting, bonding, or welding. The upright plate 6 is vertically mounted on both sides of the support frame 5, and the rotating shaft... The connection between the first rotating seat 4 and the set of positioning plates 10, and between the second rotating seat 9 and the positioning frame 11, can be achieved by bonding, welding, or bolting. The two ends of the linkage mechanism are respectively connected to the positioning frame 11 and the set of positioning plates 10. The connection method can be snap-fit, bolting, bonding, or welding. This allows the linkage mechanism to form a parallelogram linkage between the base plate 2 and the frame 1. By adjusting the rotation of the two sets of linkage mechanisms on both sides of the base plate 2, the connected base plate 2 can swing relative to the frame 1, thereby achieving vibration testing. It should be noted that the length of the linkage mechanism affects the swing amplitude of the base plate 2 relative to the frame 1. Furthermore, when the lengths of the two sets of linkage mechanisms at the two ends of the base plate 2 are different, the posture of the base plate 2 relative to the frame 1 is also different. Thus, the swing effect is also different when the two ends of the base plate 2 swing at different initial angles.

[0021] In some embodiments, the linkage mechanism includes: a linkage rod 12 and a linkage sleeve 13. The linkage rod 12 is disposed within the linkage sleeve 13, and the linkage rod 12 and the linkage sleeve 13 are slidably connected. One end of the linkage rod 12 is connected to the positioning frame 11, and the linkage sleeve 13 is connected to a pair of positioning plates 10. Multiple first screw holes 14 are evenly arranged along the length of the opposing sides of the linkage sleeve 13. The linkage rod 12 is provided with a first through hole corresponding to the first screw hole 14. A first adjusting member 15 is provided between the linkage rod 12 and the linkage sleeve 13 to respectively screw the first screw hole 14 and the through hole. Figure 1-8As shown, the linkage rod 12 is installed inside the linkage sleeve 13, and the linkage rod 12 can slide within the linkage sleeve 13, allowing the length of the linkage mechanism to be changed, thereby adjusting the swing amplitude of the base plate 2 relative to the frame 1. The connection between the linkage rod 12 and the positioning frame 11, and between the linkage sleeve 13 and a pair of positioning plates 10, can be in the form of bolt connection, welding, or bonding. The linkage sleeve 13 has multiple first screw holes 14 evenly arranged along its length on opposite sides, which cooperate with the first through holes evenly arranged on the linkage rod 12. The first adjusting member 15 passes through the first through holes and the first screw holes 14, and is screwed into the first screw holes 14. After the relative length between the linkage rod 12 and the linkage sleeve 13 is adjusted, the first adjusting member 15 fixes the position length between them. When the relative length between the linkage rod 12 and the linkage sleeve 13 is different, the swing amplitude of the base plate 2 relative to the frame 1 is different.

[0022] In some embodiments, the vibration mechanism includes: a fixed plate 16, two fixed plates 16 are symmetrically arranged on both sides of the frame 1, and the fixed plates 16 are close to one end of the frame 1. Support seats 17 are respectively provided on the fixed plates 16, and a U-shaped connecting rod 18 is provided between the two support seats 17. The two ends of the U-shaped connecting rod 18 are respectively rotatably connected to the two support seats 17. A motor 19 is provided near one of the fixed plates 16, and the output shaft of the motor 19 is connected to one end of the U-shaped connecting rod 18. A linkage member 20 is connected to the middle of the U-shaped connecting rod 18. A rotating cylinder 21 is provided at one end of the linkage member 20, and the rotating cylinder 21 is sleeved on the middle of the U-shaped connecting rod 18, with the rotating cylinder 21 and the U-shaped connecting rod 18 rotatably connected. A rotating part 22 is provided at the other end of the linkage member 20, and a connecting part 23 is provided at the bottom of the support frame 5 near the rotating part 22. The linkage member 20 is rotatably connected through the rotating part 22 and the connecting part 23. Figure 1-8As shown, the fixing plates 16 of the vibration mechanism are symmetrically installed on both sides of the frame 1, with one end of the fixing plate 16 closer to the frame 1. Support seats 17 are respectively installed on the fixing plates 16, and a U-shaped connecting rod 18 is installed between the two support seats 17. The two ends of the U-shaped connecting rod 18 are rotatably connected to the support seats 17, and a protruding part of the U-shaped connecting rod 18 is located in the middle of the U-shaped connecting rod 18. The middle part of the U-shaped connecting rod 18 is rotatably connected to the sleeved rotating cylinder 21. A motor 19 is installed near one of the fixing plates 16. The motor 19 is commercially available. The output shaft of the motor 19 is connected to the end of the U-shaped connecting rod 18 near the fixed plate 16 via a coupling. The motor 19 is a variable frequency motor, and its rotation speed can be adjusted by a connected frequency converter. One end of the linkage 20 is connected to the U-shaped connecting rod 18 via the rotating cylinder 21. The middle part of 8 is rotatably connected, and the other end of its linkage 20 is rotatably connected to the connecting part 23 installed at the bottom of the support frame 5 through the rotating part 22. It should be noted that the rotatable connection can be achieved through a rotating shaft. When the motor 19 is working, it drives the U-shaped connecting rod 18 to rotate, so that the U-shaped connecting rod 18 drives the linkage 20 to rotate. The linkage 20 is rotatably connected to the connecting part 23 at the bottom of the support frame 5. The connecting part 23 is set close to the U-shaped connecting rod 18, and the U-shaped connecting rod 18 is close to one end of the frame 1. Thus, the corresponding connecting part 23 is also set close to one end of the bottom plate 2. The linkage 20 drives the bottom plate 2 to vibrate up and down. It should be noted that when the speed of the motor 19 is different, the vibration frequency of the bottom plate 2 is also different.

[0023] In some embodiments, the first detection mechanism includes: a first sleeve 24 and a first rod 25. The first rod 25 is disposed inside the first sleeve 24 and slidably connected to the first sleeve 24. A through hole is provided at one end of the first rod 25 away from the first sleeve 24. A sliding rod 26 is disposed in the through hole. A detection end 27 is provided at one end of the sliding rod 26. The other end of the sliding rod 26 passes through the through hole and is provided with a limiting part 28. A spring 29 is disposed on the sliding rod 26. The two ends of the spring 29 abut against the first rod 25 at the edge of the through hole and the detection end 27, respectively. A pressure sensor is provided at the end of the detection end 27 away from the first sleeve rod 25, and the pressure sensor is connected to the processor. The first sleeve 24 is provided with a first connecting plate 30 at the end away from the first sleeve rod 25. The first connecting plate 30 is perpendicularly connected to the end of the first sleeve 24. The first connecting plate 30 is provided with a plurality of third through holes 31 that are adapted to the mounting holes along its length direction. When the first connecting plate 30 abuts against the base plate 2, a third adjusting member 32 is provided between the first connecting plate 30 and the base plate 2 to respectively screw the mounting holes and the through holes 31. The first sleeve 24 has a plurality of second screw holes 33 evenly arranged on its two opposite sides along its length. The first sleeve rod 25 has a second through hole 34 corresponding to the second screw holes 33. A second adjusting member 35 is provided between the first sleeve 24 and the first sleeve rod 25 to respectively screw the second screw holes 33 and the through hole 34. Figure 1-8 As shown, the first sleeve 24 and the first sleeve rod 25 in the first detection mechanism are slidably connected relative to each other. One end of the sliding rod 26 is provided with a detection end 27, and a pressure sensor is provided at the detection end 27. The sensor is commercially available. When the distribution cabinet is vibrated during testing, it will transmit pressure along the swing direction. The pressure sensor acquires its pressure sensing signal and transmits it to the processor. The processor converts it into corresponding pressure information, thereby obtaining the first test information of the distribution cabinet under test during vibration. The first connecting plate 30 and the first sleeve 24 are arranged perpendicularly relative to each other. When testing distribution cabinets of different specifications, they are aligned and connected using the mounting holes arranged in a rectangular array on the base plate 2. The third through hole 31 on the first connecting plate 30 allows the third adjusting member 32 to pass through and abut against the first connecting plate 30. Around the mounting hole 0, the third adjusting member 32 and the threaded connection provided in the mounting hole allow the third adjusting member 32 to pass through the third through hole 31 and be threaded together with the mounting hole, thereby connecting the first connecting plate 30. When the first sleeve 24 and the first sleeve rod 25 are adjusted according to the distribution cabinet to be tested, the second adjusting member 35 passes through the second screw hole 33 and the second through hole 34 in sequence, so that the second adjusting member 35 and the second screw hole 33 are screwed together to assemble them. A nut can be fitted on the second adjusting member 35 to prevent it from easily coming off. It should be noted that during testing, the first sleeve 24 and the first sleeve rod 25 are adjusted so that their detection end 27 is close to the top of the distribution cabinet to be tested, making it easier for the detection end 27 to measure its corresponding first test information.

[0024] In some embodiments, the second detection mechanism includes: a data acquisition end 36 connected to the processor; the data acquisition end 36 is respectively disposed on both sides of the frame 1 and at the center of the inner top of the device to be tested; the data acquisition ends 36 on both sides of the frame 1 are disposed at one end of the second sleeve rod 37; the other end of the second sleeve rod 37 is slidably disposed in the second sleeve 38; a plurality of third screw holes 39 are uniformly disposed on the opposite two sides of the second sleeve 38 along its length direction; a fourth through hole 40 corresponding to the third screw holes 39 is disposed on the second sleeve rod 37; a fourth adjusting member 41 is disposed between the second sleeve 38 and the second sleeve rod 37 to respectively screw the third screw holes 39 and the fourth through hole 40. The second sleeve 38, at the end furthest from the second sleeve rod 37, is vertically connected to a second connecting plate 42, which is respectively located at the midpoint of both sides of the frame 1. Figure 1-8 As shown, the second detection mechanism includes: a data acquisition end 36, which is a commercially available CCD camera with infrared capabilities. It acquires images of the power distribution cabinet under test in real time and transmits them to a processor. The processor performs signal conversion and preprocessing on the acquired images before transmitting them to a control device. During preprocessing, the processor removes unnecessary signals by correcting the black level and uses denoising algorithms (such as median filtering, mean filtering, or Gaussian filtering) to reduce the impact of noise on image quality. By performing edge comparison on the acquired images of the power distribution cabinet under test in real time, the edge displacement in the images acquired by each data acquisition end 36 per unit time is obtained to obtain the second test information. The data acquisition ends 36 located on both sides of the frame 1 are connected by a second sleeve rod 37, while the data acquisition end 36 located on the side of the power distribution cabinet under test... The test distribution cabinet is connected to the top of the cabinet using bolts, clamps, etc. The connection between the acquisition end 36, the second sleeve rod 37, the second sleeve 38, and the second connecting plate 42 located on both sides of the frame 1 can be achieved by bonding, snap-fitting, or bolting. When facing different distribution cabinets to be tested, the relative positions of the second sleeve rod 37 and the second sleeve 38 are adjusted to allow for adaptive adjustment, aligning the acquisition end 36 with the distribution cabinet to be tested to cover the entire cabinet. After adjusting the second sleeve 38 and the second sleeve rod 37 to the appropriate position, the fourth adjusting member 41 passes through the third screw hole 39 and the fourth through hole 40, screwing the fourth adjusting member 41 and the third screw hole 39 together to complete the adjustment. A nut can be provided on the fourth adjusting member 41 to prevent it from easily coming loose.

[0025] In some embodiments, the base plate 2 is further provided with a positioning mechanism, which includes an L-shaped block 43. The two right-angled sides of the L-shaped block 43 are used to abut against the device to be tested. The two right-angled sides of the L-shaped block 43 are respectively provided with a first positioning hole 44 and a second positioning hole 45 facing the device to be tested. The first positioning hole 44 and the second positioning hole 45 are respectively provided with abutting parts 46. The abutting parts 46 are screwed to the first positioning hole 44 and the second positioning hole 45 respectively. The abutting parts 46 are provided with abutting portions 47 at one end of the two right-angled sides of the L-shaped block 43, and adjusting blocks 48 are provided at the other end of the abutting parts 46. The L-shaped block 43 is also provided with a fixing part 49, and the fixing part 49 is provided with a fifth through hole 50 adapted to the mounting hole. A fifth adjusting member 51 is provided between the L-shaped block 43 and the base plate 2 to respectively screw the mounting hole and the fifth through hole 50. Figure 1-8 As shown, the positioning mechanism is used to fix the relative position of the distribution cabinet under test and the base plate 2 to simulate its usage environment. When facing distribution cabinets of different specifications, L-shaped blocks 43 are installed at the four bottom corners of the distribution cabinet to fix it. The L-shaped blocks 43 are aligned with the fifth through hole 50 of the fixing part 49 and the mounting hole on the base plate 2 closest to its bottom corner. Then, the fifth adjusting member 51 passes through the fifth through hole 50, and the fifth adjusting member 51 is screwed to the mounting hole, with the end of the fifth adjusting member 51 abutting around the fifth through hole 50. The assembly between the L-shaped block 43 and the distribution cabinet is completed. Then, using the first positioning hole 44 and the second positioning hole 45 on the two right-angled sides, the operation and adjustment are quick, so that the abutment 46 rotates relative to each other. The abutment 46 is screwed to the first positioning hole 44 and the second positioning hole 45 respectively, so that the distance between the grounding part and the distribution cabinet to be tested is adjusted. When the abutment part 47 abuts against the outside of the distribution cabinet to be tested, the assembly of one of the L-shaped blocks 43 is completed. After the assembly of the remaining L-shaped blocks 43 is completed in sequence, the assembly between the distribution cabinet to be tested and the base plate 2 is completed.

[0026] The present invention also provides a method for testing the seismic performance of a power distribution cabinet, comprising the seismic performance testing device for a power distribution cabinet as described in any of the preceding claims, and comprising the following steps: S1: Install the power distribution cabinet to be tested on the base plate 2, and adjust the swing amplitude of the vibration mechanism according to the preset test target; S2: The control device configures the response parameters required by the vibration mechanism according to the test requirements, and acquires the first test information and the second test information in real time based on the response parameters, and analyzes them to obtain the test results; S3: Import the first test information into the response level model to obtain the actual test level, and get the test level corresponding to the test result.

[0027] In some implementations, in step S2, the first test information and the second test information are acquired in real time, and the results are obtained after analysis. The system acquires first test information and second test information in real time, and acquires the first change amount and the second change amount of the first test information and the second test information per unit time, respectively. The first change amount and the second change amount acquired in real time are compared with the change amount thresholds of the first test information and the second test information. If the first change amount and the second change amount are respectively within the change amount thresholds of the first test information and the second test information, then both the first test information and the second test information can be used as test results. Otherwise, the swing amplitude of the vibration mechanism is readjusted, and the first test information and the second test are reacquired based on the response parameters until the first change and the second change obtained in real time are respectively within the change threshold of the first test information and the change threshold of the second test information.

[0028] In some implementations, the response level model is: Using the first test information as the independent variable and the response level as the dependent variable, a response level model corresponding to the first test information is generated.

[0029] Specifically, at the start of the test, based on the different specifications of the equipment and the preset test targets, the distribution cabinet to be tested is first installed on the base plate 2, and the swing amplitude of the vibration mechanism is adjusted according to the preset test targets. L-shaped blocks 43 are installed at the four bottom corners of the distribution cabinet to fix it in place. The L-shaped blocks 43 are aligned using the fifth through hole 50 of the fixing part 49 and the mounting hole on the base plate 2 closest to one of their bottom corners. Then, a fifth adjusting member 51 passes through the fifth through hole 50, and is screwed to the mounting hole, with the end of the fifth adjusting member 51 abutting against the mounting hole. Around the fifth through hole 50, the assembly between the L-shaped block 43 and the distribution cabinet is completed; then, using the first positioning hole 44 and the second positioning hole 45 on the two right-angled sides, the operation and adjustment are quick, so that the abutment 46 rotates relative to each other. The abutment 46 is screwed to the first positioning hole 44 and the second positioning hole 45 respectively, so that the distance between the grounding part and the distribution cabinet to be tested is adjusted. When the abutment part 47 abuts against the outside of the distribution cabinet to be tested, the assembly of one of the L-shaped blocks 43 is completed. After the assembly of the remaining L-shaped blocks 43 is completed in sequence, the assembly between the distribution cabinet to be tested and the base plate 2 is completed.

[0030] Specifically, multiple first screw holes 14 evenly arranged along the length of the opposite sides of the linkage sleeve 13 cooperate with the first through holes evenly arranged on the linkage rod 12. The first adjusting member 15 passes through the first through hole and the first screw hole 14 and is screwed into the first screw hole 14. After the relative length between the linkage rod 12 and the linkage sleeve 13 is adjusted, the first adjusting member 15 fixes the position length between the two. When the relative length between the linkage rod 12 and the linkage sleeve 13 is different, the base plate 2 swings at different amplitudes relative to the frame 1, thereby adjusting to a suitable vibration amplitude.

[0031] Specifically, the vibration mechanism adjusts its speed via a frequency converter connected to the motor 19. The control device is configured to set the required speed of the vibration mechanism to multiple response parameters for response testing via a programmable program, thereby producing different response parameters. The motor 19 drives the U-shaped connecting rod 18 to rotate, which in turn drives the linkage 20 to rotate. The linkage 20 is rotatably connected to the connecting part 23 at the bottom of the support frame 5. The connecting part 23 is located near the U-shaped connecting rod 18, which is located near one end of the frame 1. Thus, the corresponding connecting part 23 is also located near one end of the base plate 2. The linkage 20 drives the base plate 2 to vibrate up and down, thereby completing the vibration under the specified response parameters.

[0032] Specifically, after the distribution cabinet assembly is completed, the first sleeve 24 and the first sleeve rod 25 are adjusted so that their detection end 27 is close to the top of the distribution cabinet to be tested, which makes it easier for the detection end 27 to measure its corresponding first test information; after the second sleeve 38 and the second sleeve rod 37 are adjusted to a suitable position, the fourth adjusting member 41 is used to pass through the third screw hole 39 and the fourth through hole 40 so that the fourth adjusting member 41 and the third screw hole 39 are screwed together to complete the adjustment, so that the edge displacement in the image of the distribution cabinet to be tested collected by each acquisition end 36 is used to obtain the second test information.

[0033] Specifically, the control device configures the response parameters required by the vibration mechanism according to the test needs. Based on these response parameters, it acquires first test information and second test information in real time, and acquires the first change and the second change of the first test information and the second test information per unit time, respectively. The first change and the second change obtained in real time are compared with the change thresholds of the first test information and the second test information. If the first change and the second change are respectively within the change thresholds of the first test information and the second test information, then both the first test information and the second test information can be used as test results. Otherwise, the swing amplitude of the vibration mechanism is readjusted, and the first test information and the second test are reacquired based on the response parameters until the first change and the second change obtained in real time are respectively within the change threshold of the first test information and the change threshold of the second test information.

[0034] Specifically, during the testing process, the second test information for the electronic components inside the distribution cabinet can reflect their seismic resistance.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A device for testing the seismic performance of a power distribution cabinet, characterized in that, include: Frame; A base plate is positioned directly above the frame, and the base plate is used to place the power distribution cabinet for testing. A vibration mechanism is provided between the frame and the base plate to perform vibration performance tests on the base plate at different response levels; The first testing mechanism is detachably provided with two at both ends of the base plate, and the testing ends of the first testing mechanism respectively abut against both ends of the receiving testing device to obtain the first test information during the test; The second testing mechanism is respectively set on both sides of the frame and located at the inner top of the device under test, and is used to acquire the second test information of the outside and inside of the device under test in real time. A control device, the control device package being configured to set the speed required by the vibration mechanism to a plurality of response parameters for response testing via a programmable program; The control device is connected to the vibration mechanism, the first detection mechanism, and the second detection mechanism, and is used to perform vibration performance testing on the vibration mechanism, obtain first test information from the first detection mechanism, and obtain second test information from the second detection mechanism; the control device is also connected to a processor.

2. The electrical distribution cabinet seismic performance testing device according to claim 1, characterized in that: The frame is provided with a first mounting plate on each of its two side edges. A first rotating seat is provided on the side of the first mounting plate away from the frame. The first rotating seat and the first mounting plate are rotatably connected. The two ends of the frame are respectively separated from the bottom plate. The base plate has multiple mounting holes evenly arranged in a rectangular array; The bottom of the base plate is provided with a support frame, and upright plates are provided on both sides of the support frame. Second mounting plates are provided on the two ends of the upright plates. A rotating shaft is provided on the side of the second mounting plate away from the upright plate. A second rotating seat is sleeved on the outside of the rotating shaft. The second rotating seat and the rotating shaft are rotatably connected. A set of opposing positioning plates is provided on the side of the first rotating seat away from the first mounting plate, and a positioning frame is provided on the side of the second rotating seat away from the upright plate. A linkage mechanism is provided between each of the first rotating seats and the second rotating seat, and the two ends of the linkage mechanism are respectively connected to a set of positioning plates and the positioning frame.

3. The electrical distribution cabinet seismic performance testing device according to claim 2, characterized in that: The linkage mechanism includes: a linkage rod and a linkage sleeve, the linkage rod is disposed inside the linkage sleeve and the linkage rod and the linkage sleeve are slidably connected, one end of the linkage rod is connected to the positioning frame, and the linkage sleeve is connected to a pair of positioning plates; The linkage sleeve has a plurality of first screw holes evenly arranged on its two opposite sides along its length direction. The linkage rod has a first through hole corresponding to the first screw hole. A first adjusting member is provided between the linkage rod and the linkage sleeve to screw the first screw hole and pass through the first through hole respectively.

4. The seismic performance testing device for distribution cabinets according to claim 1, characterized in that: The vibration mechanism includes: a fixed plate, two fixed plates symmetrically arranged on both sides of the frame, with the fixed plate close to one end of the frame; a support seat is provided on each fixed plate; a U-shaped connecting rod is provided between the two support seats; the two ends of the U-shaped connecting rod are rotatably connected to the two support seats respectively; a motor is provided near one of the fixed plates; the output shaft of the motor is connected to one end of the U-shaped connecting rod. A linkage component is connected to the middle of the U-shaped connecting rod. A rotating cylinder is provided at one end of the linkage component. The rotating cylinder is sleeved in the middle of the U-shaped connecting rod and the rotating cylinder and the U-shaped connecting rod are rotatably connected. A rotating part is provided at the other end of the linkage component. A connecting part is provided at the bottom of the support frame near the rotating part. The linkage component is rotatably connected through the rotating part and the connecting part.

5. The electrical distribution cabinet seismic performance testing device according to claim 2, characterized in that: The first detection mechanism includes: a first sleeve and a first rod. The first rod is disposed inside the first sleeve and slidably connected to the first sleeve. A through hole is provided at the end of the first rod away from the first sleeve. A sliding rod is disposed inside the through hole. A detection end is provided at one end of the sliding rod. The other end of the sliding rod passes through the through hole and is provided with a limit part. A spring is disposed on the sliding rod. The two ends of the spring abut against the first rod at the edge of the through hole and the detection end, respectively. A pressure sensor is provided at the end of the detection end away from the first sleeve rod, and the pressure sensor is connected to the processor; A first connecting plate is provided at the end of the first sleeve away from the first sleeve rod. The first connecting plate is perpendicularly connected to the end of the first sleeve. The first connecting plate is provided with a plurality of third through holes that are adapted to the mounting holes along its length direction. When the first connecting plate abuts against the base plate, a third adjusting member is provided between the first connecting plate and the base plate to screw the mounting holes and the through holes respectively. The first sleeve has a plurality of second screw holes evenly arranged on its two opposite sides along its length direction. The first sleeve rod has a second through hole corresponding to the second screw hole. A second adjusting member is provided between the first sleeve and the first sleeve rod to screw the second screw hole and the second through hole respectively.

6. The seismic performance testing device for distribution cabinets according to claim 2, characterized in that: The second testing mechanism includes: a data acquisition end connected to the processor; the data acquisition end is respectively located on both sides of the frame and at the center of the inner top of the device to be tested; the data acquisition ends located on both sides of the frame are located at one end of the second sleeve rod; the other end of the second sleeve rod is slidably located inside the second sleeve; multiple third screw holes are evenly arranged on the opposite sides of the second sleeve along its length; a fourth through hole corresponding to the third screw hole is provided on the second sleeve rod; and a fourth adjusting member is provided between the second sleeve and the second sleeve rod to screw the third screw hole and the fourth through hole respectively. The second sleeve is vertically connected to a second connecting plate at the end away from the second sleeve rod, and the second connecting plate is respectively located at the middle position on both sides of the frame.

7. The electrical distribution cabinet seismic performance testing device according to claim 2, characterized in that: The base plate is also provided with a positioning mechanism, which includes an L-shaped block. The two right-angled sides of the L-shaped block are used to abut against the device to be tested. The two right-angled sides of the L-shaped block are respectively provided with a first positioning hole and a second positioning hole facing the device to be tested. The first positioning hole and the second positioning hole are respectively provided with abutting members. The abutting members are screwed to the first positioning hole and the second positioning hole respectively. The abutting member is provided with an abutting part at one end of the two right-angled sides of the L-shaped block, and an adjusting block is provided at the other end of the abutting member. The L-shaped block is also provided with a fixing part, and a fifth through hole adapted to the mounting hole is provided in the fixing part. A fifth adjusting member is provided between the L-shaped block and the base plate to respectively screw the mounting hole and the fifth through hole.

8. A method for testing the seismic performance of a power distribution cabinet, characterized in that: The distribution cabinet seismic performance testing device according to any one of claims 1-7 includes the following steps: S1: Install the power distribution cabinet to be tested on the base plate, and adjust the swing amplitude of the vibration mechanism according to the preset test target; S2: The control device configures the response parameters required by the vibration mechanism according to the test requirements, and acquires the first test information and the second test information in real time based on the response parameters, and analyzes them to obtain the test results; S3: Import the first test information into the response level model to obtain the actual test level, and get the test level corresponding to the test result.

9. The method for testing the seismic performance of a distribution cabinet according to claim 8, characterized in that: In step S2, the first test information and the second test information are acquired in real time, and the test results are obtained after analysis. The system acquires first test information and second test information in real time, and acquires the first change amount and the second change amount of the first test information and the second test information per unit time, respectively. The first change amount and the second change amount acquired in real time are compared with the change amount thresholds of the first test information and the second test information. If the first change amount and the second change amount are respectively within the change amount thresholds of the first test information and the second test information, then both the first test information and the second test information can be used as test results. Otherwise, the swing amplitude of the vibration mechanism is readjusted, and the first test information and the second test are reacquired based on the response parameters until the first change and the second change obtained in real time are respectively within the change threshold of the first test information and the change threshold of the second test information.

10. The method for testing the seismic performance of a distribution cabinet according to claim 8, characterized in that: The response level model is as follows: Using the first test information as the independent variable and the response level as the dependent variable, a response level model corresponding to the first test information is generated.

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