An insulation testing device for aluminum alloy bus ducts

Abstract

The present invention relates to the technical field of busbar groove testing, and particularly relates to an insulation testing device for aluminum alloy busbar grooves. It includes a frame, first universal wheels, and a megohmmeter. The first universal wheels are rotatably arranged at intervals at the bottom of the frame, the megohmmeter is installed at the top of the frame, an adjusting mechanism is arranged on the frame, a connecting frame is connected to the adjusting mechanism, and the adjusting mechanism is used to adjust the position of the connecting frame. Through the cooperation of the adjusting mechanism, the connecting frame, the first electric push rod, the connecting plate, the insulating plate, the positioning plate, and the moving mechanism, the present invention can make the insulating plate and the positioning plate accurately and quickly contact the busbars of the aluminum alloy busbar groove to be tested. Then, through the cooperation of the copper plate, the first test probe, the second test probe, the positioning and docking mechanism, and the driving mechanism, automatic alignment and connection of the test probes can be achieved, reducing manual operation, improving the test efficiency and accuracy, and the automated test process can reduce human errors and ensure the reliability and consistency of the test results.

Description

Technical Field

[0001] The present invention relates to the technical field of busbar trunking testing, and in particular to an insulation testing device for aluminum alloy busbar trunking. Background Art

[0002] As an efficient power transmission and distribution device, aluminum alloy busbar trunking is widely used in industrial and commercial buildings; it consists of an aluminum alloy shell, phase busbars (usually made of copper or aluminum), insulation partitions, insulation materials covering the busbars, and fasteners, etc. The aluminum alloy shell not only has good electrical conductivity and mechanical strength, but also has excellent heat dissipation performance and protection level, which can effectively prevent moisture and dust from entering and improve the reliability and safety of the system.

[0003] In order to ensure the safe operation of aluminum alloy busbar trunking, strict insulation testing must be carried out before leaving the factory. The insulation testing mainly includes ground testing and phase-to-phase testing to detect the aging and damage of the internal insulation materials of the busbar trunking and prevent potential safety accidents; traditional insulation testing methods usually use megohmmeters. The tester needs to manually connect the test probes of the megohmmeter to the busbars and the aluminum alloy shell for ground testing and phase-to-phase testing. However, the traditional method has certain limitations. First, the tester needs to repeatedly manually connect and disconnect the test probes, which not only increases the workload but also is prone to errors. Second, the repeated manual operation process takes a long time, reducing the testing efficiency and unable to meet the needs of mass production. Summary of the Invention

[0004] In view of this, the present invention provides an insulation testing device for aluminum alloy busbar trunking, which can solve the disadvantages that when performing traditional insulation testing on aluminum alloy busbar trunking, the tester needs to repeatedly manually connect and disconnect the test probes, which not only increases the workload but also is prone to errors, and takes a long time with low efficiency.

[0005] The technical implementation solution of the present invention is: an insulation testing device for an aluminum alloy busbar, including a frame, first universal wheels, and a megohmmeter. The first universal wheels are rotatably arranged at intervals at the bottom of the frame, the megohmmeter is installed at the top of the frame, an adjusting mechanism is arranged on the frame, a connecting frame is connected to the adjusting mechanism, and the adjusting mechanism is used to adjust the position of the connecting frame. A first electric push rod is installed on the connecting frame, a connecting plate is connected to the telescopic rod of the first electric push rod, insulating plates are slidably arranged at intervals on the connecting plate, positioning plates are arranged at intervals at the bottom of the connecting plate, the number of the positioning plates is the same as that of the insulating plates, and the insulating plates are used to press the busbars on the aluminum alloy busbar against the positioning plates. A moving mechanism for driving the insulating plates to move is arranged on the connecting plate, copper plates are connected to the positioning plates, a positioning and docking mechanism is arranged on the connecting plate, two first test probes are arranged on the positioning and docking mechanism, the first test probes are electrically connected to the megohmmeter, and the positioning and docking mechanism is used to drive the two first test probes to move to dock with different copper plates for relative testing of the aluminum alloy busbar. A driving mechanism is also arranged on the connecting plate, a second test probe is connected to the driving mechanism, the second test probe is electrically connected to the megohmmeter, and the driving mechanism is used to drive the second test probe to move into contact with the aluminum alloy shell on the aluminum alloy busbar for ground testing of the aluminum alloy busbar.

[0006] Optionally, the adjusting mechanism includes a lead screw, a servo motor, and a first electric slide rail. The lead screw is rotatably arranged in the frame, a servo motor for driving the lead screw to rotate is installed on the frame, the output shaft of the servo motor is connected to the lead screw, the first electric slide rail is slidably arranged in the frame, and the first electric slide rail is in threaded connection with the lead screw. The slider of the first electric slide rail is connected to the connecting frame.

[0007] Optionally, the moving mechanism includes a second electric push rod and a spring. The second electric push rod is arranged on the connecting plate, the insulating plate is slidably connected to the telescopic rod of the second electric push rod, and a spring is connected between the insulating plate and the telescopic rod of the second electric push rod.

[0008] Optionally, the positioning and docking mechanism includes a second electric slide rail, a mounting frame, and a third electric push rod. Two second electric slide rails are installed at the top of the connecting plate, mounting frames are connected to the sliders of the two second electric slide rails, third electric push rods are installed on the two mounting frames, and the telescopic rods of the two third electric push rods are respectively connected to the two first test probes.

[0009] Optionally, the driving mechanism includes a mounting plate and a fourth electric push rod. The mounting plate is installed at the bottom of the connecting plate, the fourth electric push rod is arranged on the mounting plate, and the telescopic rod of the fourth electric push rod is connected to the second test probe.

[0010] Optionally, it further includes a wiping mechanism, which includes a fixing plate, a first sponge block, and a second sponge block. The fixing plate is installed at the bottom of the connecting plate, and the fixing plate is flush with the positioning plate. A first sponge block is connected to both the fixing plate and one of the positioning plates, and a second sponge block is connected to the remaining positioning plates. The second sponge blocks are located between the first sponge blocks. Both the first sponge block and the second sponge block are used to wipe the busbar.

[0011] Optionally, it further includes a limiting mechanism, which includes a third electric slide rail, a first limiting frame, a second limiting frame, and a second universal wheel. The third electric slide rail is installed on the frame, the slider of the third electric slide rail is connected to the first limiting frame, the second limiting frame is installed on the frame, and the second universal wheels are rotatably installed at the bottoms of the first limiting frame and the second limiting frame.

[0012] Optionally, it further includes a resistance increasing mechanism, which includes a cylinder and a friction plate. The cylinder is installed on the frame, and the friction plate is connected to the telescopic rod of the cylinder.

[0013] The present invention has the following advantages: 1. Through the cooperation of the adjusting mechanism, the connecting frame, the first electric push rod, the connecting plate, the insulating plate, the positioning plate, and the moving mechanism, the insulating plate and the positioning plate can accurately and quickly contact the busbar of the aluminum alloy busbar to be tested. Then, through the cooperation of the copper plate, the first test probe, the second test probe, the positioning and docking mechanism, and the driving mechanism, the automatic alignment and connection of the test probe can be realized, reducing manual operation, improving the test efficiency and accuracy, and the automated test process can reduce human errors and ensure the reliability and consistency of the test results.

[0014] 2. By setting the wiping mechanism, the first sponge block and the second sponge block can be used to wipe the surface of the busbar, so as to clean the impurities on the surface of the busbar and prevent the impurities on the surface of the busbar from affecting the subsequent insulation test.

[0015] 3. By setting the limiting mechanism and the resistance increasing mechanism, the stability of the test device during the test can be ensured, and safety accidents caused by the movement or shaking of the test device can be prevented. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the adjusting mechanism of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the moving mechanism of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the frame, the insulating plate, and the positioning plate of the present invention.

[0020] Figure 5 This is a three-dimensional structural schematic diagram of the positioning and docking mechanism of the present invention.

[0021] Figure 6 This is a three-dimensional structural schematic diagram of the second electric slide rail, mounting bracket and third electric push rod of the present invention.

[0022] Figure 7 This is a three-dimensional structural schematic diagram of the driving mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural schematic diagram of the wiping mechanism of the present invention.

[0024] Figure 9 This is a structural separation diagram of the first sponge block and the second sponge block of the present invention.

[0025] Figure 10 This is a three-dimensional structural schematic diagram of the limiting mechanism and the resistance increasing mechanism of the present invention.

[0026] Figure 11 This is a three-dimensional structural schematic diagram of the resistance increasing mechanism of the present invention.

[0027] The meanings of the reference numerals in the figure: 1: frame, 101: aluminum alloy shell, 102: busbar, 2: first universal wheel, 3: megohmmeter, 401: lead screw, 402: servo motor, 403: first electric slide rail, 5: connecting frame, 6: first electric push rod, 7: connecting plate, 8: insulating plate, 9: positioning plate, 1001: second electric push rod, 1002: spring, 11: copper plate, 1201: second electric slide rail, 1202: mounting bracket, 1203: third electric push rod, 13: first test probe, 1401: mounting plate, 1402: fourth electric push rod, 15: second test probe, 16: fixing plate, 17: first sponge block, 18: second sponge block, 19: third electric slide rail, 20: first limiting frame, 21: second limiting frame, 22: second universal wheel, 23: cylinder, 24: friction plate. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0029] Embodiment: An insulation testing device for aluminum alloy busbars, refer to Figures 1-7As shown in the figure, it includes a frame 1, a first universal wheel 2, and a megohmmeter 3. The first universal wheel 2 is rotatably arranged at intervals at the bottom of the frame 1. The megohmmeter 3 is installed on the right side of the top of the frame 1, and the megohmmeter 3 is used to perform insulation testing on the aluminum alloy busbar.

[0030] It also includes a connecting frame 5, a first electric push rod 6, a connecting plate 7, an insulating plate 8, a positioning plate 9, a copper plate 11, a first test probe 13, a second test probe 15, an adjusting mechanism, a moving mechanism, a positioning and docking mechanism, and a driving mechanism. An adjusting mechanism is arranged on the frame 1. The connecting frame 5 is connected to the adjusting mechanism, and the adjusting mechanism is used to adjust the position of the connecting frame 5 so that the connecting frame 5 can be aligned with the aluminum alloy busbar to be tested. On the left and right sides of the front side of the connecting frame 5, there are first electric push rods 6. Between the telescopic rods of the two first electric push rods 6, there is a connecting plate 7. Five insulating plates 8 are slidably arranged at intervals on the connecting plate 7. Five positioning plates 9 are arranged at intervals at the bottom of the connecting plate 7. The positioning plate 9 is composed of two plate-like structures. The two plate-like structures are distributed front and back. The front plate-like structure is made of non-conductive material. The top of the rear plate-like structure is connected to the bottom of the connecting plate 7, and the rear plate-like structure is made of conductive material. A moving mechanism for driving the insulating plate 8 to move is arranged on the connecting plate 7, so that the insulating plate 8 can press the bus bar 102 against the rear plate-like structure of the positioning plate 9 to ensure close contact between the bus bar 102 and the positioning plate 9. On the upper part of the rear plate-like structure of the positioning plate 9, there is a group of copper plates 11. The number of a group of copper plates 11 is two. The two copper plates 11 in a group are distributed front and back. A positioning and docking mechanism is arranged on the top of the connecting plate 7. Two first test probes 13 are arranged on the positioning and docking mechanism. The two first test probes 13 are distributed front and back. The first test probe 13 is electrically connected to the megohmmeter 3. The positioning and docking mechanism is used to drive the two first test probes 13 to move to dock with two different copper plates 11. Among them, the front first test probe 13 docks with the front copper plate 11, and the rear first test probe 13 docks with the rear copper plate 11 to perform relative testing on the aluminum alloy busbar. A driving mechanism is also arranged on the connecting plate 7. The second test probe 15 is connected to the driving mechanism. The second test probe 15 is electrically connected to the megohmmeter 3. The driving mechanism is used to drive the second test probe 15 to move to contact the aluminum alloy shell 101 on the aluminum alloy busbar to perform ground testing on the aluminum alloy busbar.

[0031] See Figure 2As shown in the figure, the adjusting mechanism includes a lead screw 401, a servo motor 402, and a first electric slide rail 403. The lead screw 401 is rotatably arranged at the lower part inside the frame 1. The servo motor 402 for driving the rotation of the lead screw 401 is installed on the left side at the lower part inside the frame 1, and the output shaft of the servo motor 402 is connected to the left end of the lead screw 401. The first electric slide rail 403 is slidably arranged inside the frame 1, and the lower side of the first electric slide rail 403 is threadedly connected to the lead screw 401. The slider of the first electric slide rail 403 is connected to the connecting frame 5.

[0032] See Figure 3 As shown in the figure, the moving mechanism includes a second electric push rod 1001 and a spring 1002. The second electric push rod 1001 is installed on the left side at the top of the connecting plate 7. The upper sides of the five insulating plates 8 are all slidably connected to the telescopic rod of the second electric push rod 1001. Springs 1002 are connected between the upper left sides of the five insulating plates 8 and the telescopic rod of the second electric push rod 1001.

[0033] See Figure 5 and Figure 6 As shown in the figure, the positioning and docking mechanism includes a second electric slide rail 1201, a mounting bracket 1202, and a third electric push rod 1203. The second electric slide rails 1201 are installed on both the front and rear sides at the top of the connecting plate 7. Mounting brackets 1202 are connected to the sliders of the two second electric slide rails 1201. Third electric push rods 1203 are installed on the two mounting brackets 1202, and the telescopic rods of the two third electric push rods 1203 are respectively connected to the two first test probes 13.

[0034] See Figure 7 As shown in the figure, the driving mechanism includes a mounting plate 1401 and a fourth electric push rod 1402. The mounting plate 1401 is installed on the left side at the bottom of the connecting plate 7. The fourth electric push rod 1402 is arranged on the lower side of the mounting plate 1401, and the telescopic rod of the fourth electric push rod 1402 is connected to the second test probe 15.

[0035] During use, push the frame 1 to move, so that the first universal wheel 2 rolls on the ground, thereby driving the insulation testing device to move to a specified position, and aligning the frame 1 with the stacked aluminum alloy busbars (such as Figure 4As shown, then drive the connecting frame 5, the first electric push rod 6, the connecting plate 7, the insulating plate 8 and the positioning plate 9 to rise or fall through the first electric slide rail 403, so that the insulating plate 8 and the positioning plate 9 are at the same height as the aluminum alloy busbar to be tested. Subsequently, drive the lead screw 401 to rotate forward or backward through the servo motor 402, thereby driving the first electric slide rail 403, the connecting frame 5, the first electric push rod 6, the connecting plate 7, the insulating plate 8 and the positioning plate 9 to move left or right, so that the insulating plate 8 and the positioning plate 9 are aligned with the aluminum alloy busbar to be tested, and adjust the positions of the insulating plate 8 and the positioning plate 9 accordingly. Then drive the connecting plate 7, the insulating plate 8 and the positioning plate 9 to move forward through the first electric push rod 6 until the rear plate-like structure of the positioning plate 9 contacts the busbar 102 of the aluminum alloy busbar, and the busbar 102 is located between the rear plate-like structure of the positioning plate 9 and the insulating plate 8. Then control the telescopic rod of the second electric push rod 1001 to contract, so that the telescopic rod of the second electric push rod 1001 pulls the insulating plate 8 to move left through the spring 1002. When the insulating plate 8 contacts the busbar 102, the busbar 102 will block the movement of the insulating plate 8. When the telescopic rod of the second electric push rod 1001 continues to contract, the spring 1002 stretches. Under the elastic force of the spring 1002, the spring 1002 will apply a pulling force to the insulating plate 8, so that the insulating plate 8 presses the busbar 102 against the rear plate-like structure of the positioning plate 9, so that the busbar 102 is in close contact with the rear plate-like structure of the positioning plate 9, thereby preventing the busbar 102 from having poor contact with the rear plate-like structure of the positioning plate 9. Then perform the next operation according to the test requirements:

[0036] If relative testing needs to be performed on two adjacent busbars 102 in the aluminum alloy busbar trunking, the mounting bracket 1202, the third electric push rod 1203, and the first test probe 13 are driven by the second electric slide rail 1201 to move left or right until the front and rear first test probes 13 respectively move to directly above the front and rear specified copper plates 11 (the positions of these two specified copper plates 11 need to be two of the adjacent two groups, and these two specified copper plates 11 cannot be from the same group). Subsequently, the first test probe 13 is driven by the third electric push rod 1203 to move downward so that the first test probe 13 contacts the specified copper plate 11. In this way, the two first test probes 13 can respectively contact two adjacent busbars 102 in the aluminum alloy busbar trunking. After that, relative testing on two adjacent busbars 102 in the aluminum alloy busbar trunking can be performed through the megohmmeter 3. After the relative testing on two adjacent busbars 102 in the aluminum alloy busbar trunking is completed, the first test probe 13 is driven by the third electric push rod 1203 to move upward to reset, so that the first test probe 13 is separated from the specified copper plate 11. After that, the above operations are repeated to perform relative testing on other two adjacent busbars 102 in the aluminum alloy busbar trunking until relative testing on all two adjacent busbars 102 in the aluminum alloy busbar trunking is completed;

[0037] When ground testing needs to be performed on the busbar 102 in the aluminum alloy busbar trunking, the second test probe 15 is driven by the fourth electric push rod 1402 to move forward until the second test probe 15 contacts the aluminum alloy housing 101 of the aluminum alloy busbar trunking. Then, the corresponding mounting bracket 1202, the third electric push rod 1203, and the first test probe 13 are driven by the front second electric slide rail 1201 to move left or right until the front first test probe 13 moves to directly above the specified copper plate 11. Subsequently, the first test probe 13 is driven by the third electric push rod 1203 to move downward so that the first test probe 13 contacts the specified copper plate 11. After that, ground testing on the busbar 102 in the aluminum alloy busbar trunking can be performed through the megohmmeter 3. After the ground testing on the busbar 102 in the aluminum alloy busbar trunking is completed, the first test probe 13 is driven by the third electric push rod 1203 to move upward to reset, so that the first test probe 13 is separated from the specified copper plate 11. After that, the above operations are repeated to perform ground testing on other busbars 102 in the aluminum alloy busbar trunking until ground testing on all busbars 102 in the aluminum alloy busbar trunking is completed. After ground testing on all busbars 102 in the aluminum alloy busbar trunking is completed, the second test probe 15 is driven by the fourth electric push rod 1402 to move backward to reset, so that the second test probe 15 is separated from the aluminum alloy housing 101 of the aluminum alloy busbar trunking;

[0038] After the above operations are completed, the insulation test of the specified aluminum alloy busbar can be automatically completed. Then, the telescopic rod of the second electric push rod 1001 is extended. During this period, the spring 1002 gradually returns to its original state. After the spring 1002 returns to its original state, the telescopic rod of the second electric push rod 1001 will pull the insulating plate 8 to move rightward and reset through the spring 1002, separating the insulating plate 8 from the busbar 102. Then, the first electric push rod 6 is used to drive the connecting plate 7, the insulating plate 8, and the positioning plate 9 to move backward and reset, separating the rear part of the plate-shaped structure of the positioning plate 9 from the busbar 102 of the aluminum alloy busbar, and allowing the busbar 102 to leave from between the rear part of the plate-shaped structure of the positioning plate 9 and the insulating plate 8. After that, the above operations for adjusting the positions of the insulating plate 8 and the positioning plate 9 are repeated until the insulating plate 8 and the positioning plate 9 are aligned with the next aluminum alloy busbar to be tested. Then, the above operations are repeated, and the insulation test of the next aluminum alloy busbar to be tested can be automatically repeated.

[0039] See Figure 8 and Figure 9 As shown, it further includes a wiping mechanism, which includes a fixing plate 16, a first sponge block 17, and a second sponge block 18; a fixing plate 16 is installed on the right side of the bottom of the connecting plate 7, and the fixing plate 16 is flush with the positioning plate 9; the front left side of the fixing plate 16 and the front right side of the rightmost positioning plate 9 are both connected with a first sponge block 17, and the first sponge block 17 is connected to the front part of the plate-shaped structure of the positioning plate 9; the front sides of the remaining four positioning plates 9 are all connected with a second sponge block 18, and the second sponge block 18 is connected to the front part of the plate-shaped structure of the positioning plate 9. The second sponge block 18 is located between the two first sponge blocks 17. The first sponge block 17 and the second sponge block 18 are both used for wiping the busbar 102.

[0040] When the connecting plate 7 and the positioning plate 9 move forward, the first sponge block 17 and the second sponge block 18 will first come into contact with the bus bar 102. Then, as the connecting plate 7 and the positioning plate 9 continue to move, the first sponge block 17 and the second sponge block 18 will wipe the surface of the bus bar 102, thereby cleaning the impurities on the surface of the bus bar 102 to prevent the impurities on the surface of the bus bar 102 from affecting the subsequent insulation test. When the first sponge block 17 and the second sponge block 18 continue to move forward, the first sponge block 17 and the second sponge block 18 will separate from the bus bar 102, and the first sponge block 17 and the second sponge block 18 will come into contact with the insulating sleeve on the surface of the bus bar 102 (only the port part of the bus bar 102 is exposed, and the outer surface of the rest of the bus bar 102 is protected by an insulating sleeve). In this way, when current passes through the bus bar 102, it can prevent the current from damaging the first sponge block 17 and the second sponge block 18. And by arranging the first sponge block 17 and the second sponge block 18 on the front part of the plate-like structure of the positioning plate 9, the non-conductive material of the front part of the plate-like structure of the positioning plate 9 can be used to protect the first sponge block 17 and the second sponge block 18, avoiding damage to the first sponge block 17 and the second sponge block 18 when the current passes through the conductive material of the rear part of the plate-like structure of the positioning plate 9; when the connecting plate 7 and the positioning plate 9 move backward and reset, the connecting plate 7 and the positioning plate 9 will drive the fixing plate 16, the first sponge block 17 and the second sponge block 18 to move backward and reset, so that the first sponge block 17 and the second sponge block 18 are separated from the insulating sleeve and the surface of the bus bar 102 in sequence.

[0041] See Figure 10 As shown, it further includes a limiting mechanism. The limiting mechanism includes a third electric slide rail 19, a first limiting frame 20, a second limiting frame 21 and a second universal wheel 22; the third electric slide rail 19 is installed at the lower part of the front side of the frame 1; the slider of the third electric slide rail 19 is connected with the first limiting frame 20; the second limiting frame 21 is installed at the lower right part of the front side of the frame 1; the second universal wheels 22 are rotatably installed at the bottoms of the first limiting frame 20 and the second limiting frame 21.

[0042] See Figure 10 and Figure 11 As shown, it further includes a resistance increasing mechanism. The resistance increasing mechanism includes a cylinder 23 and a friction plate 24; the cylinder 23 is installed in the middle of the lower side of the frame 1; the telescopic rod of the cylinder 23 is connected with the friction plate 24.

[0043] When pushing the frame 1 to move, the frame 1 will drive the third electric slide rail 19, the first limiting frame 20 and the second limiting frame 21 to move synchronously, and make the second universal wheels 22 roll on the ground, thereby driving the insulation test device to move to the designated position and aligning the frame 1 with the stacked aluminum alloy bus ducts (as Figure 4As shown in the figure), make the second limiting frame 21 contact the lower right side of the stacked aluminum alloy bus ducts, and then drive the first limiting frame 20 to move to the right through the third electric slide rail 19, so that the first limiting frame 20 contacts the lower left side of the stacked aluminum alloy bus ducts. In this way, the first limiting frame 20 and the second limiting frame 21 are in contact with the stacked aluminum alloy bus ducts to limit the position of the frame 1, making it impossible for the frame 1 to move left and right, thereby limiting the frame 1. Then, drive the friction plate 24 to move downward through the cylinder 23 until the friction plate 24 contacts the ground, so as to increase the resistance of the frame 1 to move by using the friction plate 24, thereby preventing the frame 1 from moving back and forth, and further stabilizing the frame 1 to prevent the frame 1 from moving randomly and affecting the subsequent insulation test of the aluminum alloy bus ducts; when all the stacked aluminum alloy bus ducts have completed the insulation test, drive the friction plate 24 to move upward and reset through the cylinder 23, so that the friction plate 24 is separated from the ground, and then drive the first limiting frame 20 to move left and reset through the third electric slide rail 19, so that the first limiting frame 20 is separated from the lower left side of the stacked aluminum alloy bus ducts.

[0044] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. An insulation testing device for an aluminum alloy bus duct, comprising a frame (1), a first universal wheel (2) and a megohmmeter (3), wherein the first universal wheel (2) is rotatably arranged at intervals at the bottom of the frame (1), and the megohmmeter (3) is installed at the top of the frame (1), wherein: The frame (1) is provided with an adjustment mechanism, the adjustment mechanism is connected to a connecting frame (5), and the adjustment mechanism is used to adjust the position of the connecting frame (5), a first electric push rod (6) is installed on the connecting frame (5), a connecting plate (7) is connected to the telescopic rod of the first electric push rod (6), an insulating plate (8) is slidably arranged on the connecting plate (7), a positioning plate (9) is arranged at intervals at the bottom of the connecting plate (7), the number of the positioning plates (9) and the insulating plates (8) is the same, and the insulating plates (8) are used to press the conductive bar (102) on the aluminum alloy bus duct onto the positioning plate (9), a moving mechanism for driving the insulating plate (8) to move is provided on the connecting plate (7), and a copper plate (11) is connected to the positioning plate (9). ), a positioning docking mechanism is provided on the connection plate (7), two first test probes (13) are provided on the positioning docking mechanism, the first test probes (13) are electrically connected to the megohmmeter (3), and the positioning docking mechanism is used to drive the two first test probes (13) to move to dock with different copper plates (11) to perform relative testing of the aluminum alloy bus duct, and a driving mechanism is also provided on the connection plate (7), a second test probe (15) is connected to the driving mechanism, the second test probe (15) is electrically connected to the megohmmeter (3), and the driving mechanism is used to drive the second test probe (15) to move to contact with the aluminum alloy housing (101) on the aluminum alloy bus duct to perform ground testing of the aluminum alloy bus duct.

2. An insulation testing device for aluminum alloy bus duct according to claim 1, characterized in that: The adjustment mechanism comprises a screw rod (401), a servo motor (402) and a first electric slide rail (403); the screw rod (401) is rotatably arranged in the frame (1); the servo motor (402) for driving the screw rod (401) to rotate is mounted on the frame (1); the output shaft of the servo motor (402) is connected to the screw rod (401); the first electric slide rail (403) is slidably arranged in the frame (1); the first electric slide rail (403) is threadedly connected to the screw rod (401); and the slider of the first electric slide rail (403) is connected to the connecting frame (5).

3. An insulation testing device for aluminum alloy bus duct according to claim 2, characterized in that: The moving mechanism comprises a second electric push rod (1001) and a spring (1002); the second electric push rod (1001) is arranged on the connecting plate (7); the insulating plate (8) is slidably connected to the telescopic rod of the second electric push rod (1001); and the spring (1002) is connected between the insulating plate (8) and the telescopic rod of the second electric push rod (1001).

4. The insulation testing device for aluminum alloy bus duct according to claim 3 is characterized in that: The positioning docking mechanism comprises a second electric slide rail (1201), a mounting frame (1202) and a third electric push rod (1203); two second electric slide rails (1201) are mounted on the top of the connecting plate (7); the slide blocks of the two second electric slide rails (1201) are connected to the mounting frame (1202); the two mounting frames (1202) are mounted to the third electric push rod (1203); and the telescopic rods of the two third electric push rods (1203) are respectively connected to the two first test probes (13).

5. The insulation testing device for aluminum alloy bus duct according to claim 4, characterized in that: The driving mechanism comprises a mounting plate (1401) and a fourth electric push rod (1402); the mounting plate (1401) is mounted on the bottom of the connecting plate (7); the fourth electric push rod (1402) is arranged on the mounting plate (1401); and the telescopic rod of the fourth electric push rod (1402) is connected to the second test probe (15).

6. The insulation testing device for aluminum alloy bus duct according to claim 5, characterized in that: The invention also comprises a wiping mechanism, which comprises a fixing plate (16), a first sponge block (17) and a second sponge block (18). The fixing plate (16) is installed at the bottom of the connecting plate (7). The fixing plate (16) is flush with the positioning plate (9). The fixing plate (16) and one of the positioning plates (9) are connected to the first sponge block (17). The remaining positioning plates (9) are connected to the second sponge blocks (18). The second sponge blocks (18) are located between the first sponge blocks (17). The first sponge block (17) and the second sponge block (18) are both used to wipe the conductive bar (102).

7. An insulation testing device for aluminum alloy bus duct according to claim 6, characterized in that: The invention also comprises a limiting mechanism, which comprises a third electric slide rail (19), a first limiting frame (20), a second limiting frame (21) and a second universal wheel (22); the third electric slide rail (19) is mounted on the frame (1); the first limiting frame (20) is connected to the slider of the third electric slide rail (19); the second limiting frame (21) is mounted on the frame (1); and the second universal wheel (22) is rotatably mounted on the bottom of the first limiting frame (20) and the second limiting frame (21).

8. An insulation testing device for aluminum alloy bus duct according to claim 7, characterized in that: It also includes a resistance increasing mechanism, which includes a cylinder (23) and a friction plate (24). The cylinder (23) is mounted on the frame (1), and the friction plate (24) is connected to the telescopic rod of the cylinder (23).

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