A general-purpose motor insulation detection device

Abstract

The application discloses a universal motor insulation detection device, and relates to the technical field of motor insulation detection.The universal motor insulation detection device comprises a conveying device, a conveying belt is arranged in the conveying device, one rack is arranged on one side of the conveying device, a first electric sliding rail is slidably connected to the inner side wall of the top end of the rack, and a motor body is arranged on the conveying belt.The test probe can be flexibly adjusted in position and posture, so that a single detection device can automatically adapt to and accurately contact diversified wiring terminals of different types of motors, such as AC asynchronous motors, DC motors, synchronous motors and servo motors, thereby realizing efficient and automatic universal detection of the insulation performance of various types of motors, significantly improving equipment utilization and detection efficiency, and being especially suitable for multi-model sampling inspection in mass production and detection requirements of various types of repair motors after use failure, and effectively solving the problems of poor universality and inconvenient switching of existing automatic detection devices.

Description

Technical Field

[0001] This invention relates to the field of motor insulation testing technology, and specifically to a general-purpose motor insulation testing device. Background Technology

[0002] Motor insulation testing devices are key equipment used to evaluate the performance of insulation materials between motor windings and core, casing, or between winding phases. By applying a specific voltage and measuring parameters such as leakage current, insulation resistance, or dielectric loss, they determine whether the insulation has deteriorated, become damp, or been damaged. This plays a vital role in preventing short circuits, grounding faults, and other faults during motor operation, and in ensuring the safe operation of equipment and the safety of personnel.

[0003] Existing motor insulation testing devices mainly employ two working methods: one is the traditional manual testing method, where operators use portable instruments such as megohmmeters and withstand voltage testers to manually connect test leads to the motor terminals, set test parameters, and record results. This process is cumbersome and inefficient. The other is the automated testing method, which is usually integrated into specific testing fixtures or production lines. It uses automatic probes or fixtures to contact the motor terminals, and the program controls the tester to complete parameter application, data acquisition, and result judgment, which improves testing efficiency and consistency to a certain extent.

[0004] However, existing automated insulation testing devices generally have significant limitations: their design is usually for specific models, sizes, or wiring methods of motors, and the layout of testing fixtures, probes, and testing procedures are fixed, making it impossible to flexibly adapt to different types, such as AC asynchronous motors, DC motors, synchronous motors, and servo motors. As a result, an automatic testing device can only serve a single type of motor, with extremely poor versatility. This causes serious inconveniences such as low equipment utilization, difficult switching, high costs, and limited testing efficiency when multiple models of products need to be sampled on a mass motor production line, or when a variety of reworked motors need to be tested in the fault diagnosis of motors after repair. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical problem to be solved by this invention can be achieved through the following technical solution:

[0007] A general-purpose motor insulation testing device includes a conveying device with a conveyor belt installed inside. A frame is provided on one side of the conveying device, and an electric slide rail is slidably connected to the inner side wall of the top of the frame. A motor body is provided on the conveyor belt, and a junction box is fixed to the top of the motor body. A cylinder is slidably connected to the bottom of the electric slide rail, and a motor is fixed to the bottom of the cylinder. A test probe is provided at the bottom of the motor, and an adjustment unit is provided below the motor.

[0008] As a further embodiment of the present invention: the adjustment unit includes a rotating plate, the rotating plate is fixedly connected to the output end of a first motor, a second motor is fixedly connected to the side end of the rotating plate, a clamping plate is fixedly connected to the output end of the second motor, and a test probe is installed on the clamping plate.

[0009] As a further embodiment of the present invention: a second frame is provided on one side of the first frame of the conveying device. An electric guide rail is slidably connected to the inner side wall of the top of the second frame. A second cylinder is slidably connected to the bottom of the electric guide rail. A first motor is fixedly connected to the bottom of the second cylinder. A connecting rod is fixedly connected to the output end of the first motor. A screwdriver is connected to the bottom of the connecting rod.

[0010] As a further embodiment of the present invention: a third cylinder is slidably connected to one side of the second cylinder at the bottom of the electric guide rail, and an electric suction cup is fixedly connected to the bottom of the third cylinder.

[0011] As a further aspect of the present invention: a replacement platform is fixedly connected to one side of the second frame, a screwdriver is inserted into the inside of the replacement platform, a connector is fixedly connected to the top of the screwdriver, and the connector is connected to a connecting rod.

[0012] As a further aspect of the present invention: the top of the changing table is provided with a rotating rod, the bottom end of the rotating rod is fixedly connected to a cleaning brush, and the middle part of the rotating rod is fixedly connected to a fan blade.

[0013] As a further aspect of the present invention: an electric push rod is provided on the side end of the motor body, a positioning clamp is fixedly connected to the side end of the electric push rod, and a soft rubber plate is fixedly connected to the side end of the positioning clamp.

[0014] As a further embodiment of the present invention: a second electric slide rail is fixedly connected to the top of the conveying device, the second electric slide rail is fixedly connected to the bottom of the changing table, and an electric push rod is slidably connected to the side end of the second electric slide rail.

[0015] As a further aspect of the present invention: a monitoring device is fixedly connected to the bottom end of the No. 1 motor, and the monitoring device is located above the junction box.

[0016] As a further aspect of the present invention: the changing table has bolt holes inside, and the bolt holes are located on the side near the screwdriver.

[0017] The beneficial effects of this invention are as follows: By setting up test probes with adjustable position and orientation, a single testing device can automatically adapt to and accurately contact the diverse wiring terminals of different types of motors such as AC asynchronous motors, DC motors, synchronous motors, and servo motors. This enables efficient, automated, and universal testing of the insulation performance of various types of motors, significantly improving equipment utilization and testing efficiency. It is particularly suitable for multi-model sampling inspection in mass production and for testing diverse types of rework motors after failure. It effectively solves the problems of poor versatility and inconvenient switching of existing automatic testing devices. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a three-dimensional view of the No. 1 frame structure in this invention;

[0021] Figure 3 This is a three-dimensional view of the No. 2 frame structure in this invention;

[0022] Figure 4 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0023] Figure 5 This is the present invention. Figure 3 Enlarged view at point B in the middle;

[0024] Figure 6 This is the present invention. Figure 3 Enlarged view of point C in the middle.

[0025] In the diagram: 1. Conveying device; 2. Conveyor belt; 3. Frame 1; 4. Motor body; 5. Junction box; 6. Electric slide rail 1; 8. Cylinder 1; 9. Motor 1; 10. Rotating plate; 11. Motor 2; 12. Clamping plate; 13. Test probe; 14. Monitoring device; 15. Electric slide rail 2; 16. Positioning clamp; 17. Soft rubber plate; 18. Frame 2; 19. Cylinder 2; 20. Motor 1; 21. Connecting rod; 22. Screwdriver; 23. Cylinder 3; 24. Electric suction cup; 25. Changing table; 26. Connector; 27. Bolt hole; 28. Rotating rod; 29. ​​Cleaning brush; 30. Fan blade. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-6 As shown, a general-purpose motor insulation testing device includes a conveying device 1, a conveyor belt 2 installed inside the conveying device 1, a first frame 3 on one side of the conveying device 1, a first electric slide rail 6 slidably connected to the inner side wall of the top of the first frame 3, a motor body 4 on the conveyor belt 2, a junction box 5 fixedly connected to the top of the motor body 4, a first cylinder 8 slidably connected to the bottom of the first electric slide rail 6, a first motor 9 fixedly connected to the bottom of the first cylinder 8, a test probe 13 at the bottom of the first motor 9, and an adjustment unit below the first motor 9.

[0028] During operation, the motor body 4 is placed on the conveyor device 1, and the conveyor belt 2 moves the motor body 4 to a position below the first frame 3. A moving device located at the bottom of the first frame 3 allows the first electric slide rail 6 to be moved. The moving device of the first frame 3, in conjunction with the first electric slide rail 6, moves the test probe 13 above the motor body 4. The up-and-down movement of the first cylinder 8 moves the test probe 13 to one side of the motor body 4. The first motor 9 allows the test probe 13 to be rotated and adjusted. The first motor 9, in conjunction with the first electric slide rail 6 and the first cylinder 8, can accommodate AC asynchronous motors, DC motors, and synchronous motors. The testing operation for servo motors utilizes test probes 13 with adjustable position and orientation, enabling a single testing device to automatically adapt to and accurately contact the diverse wiring terminals of different types of motors, including AC asynchronous motors, DC motors, synchronous motors, and servo motors. This achieves efficient, automated, and universal testing of the insulation performance of various types of motors, significantly improving equipment utilization and testing efficiency. It is particularly suitable for multi-model sampling inspections in mass production and for testing the diverse types of rework motors after malfunctions. It effectively solves the problems of poor versatility, inconvenient switching, and high cost of existing automatic testing devices.

[0029] The adjustment unit includes a rotating plate 10, which is fixed to the output end of a first motor 9. A second motor 11 is fixed to the side end of the rotating plate 10. A clamping plate 12 is fixed to the output end of the second motor 11. A test probe 13 is installed on the clamping plate 12.

[0030] The test probe 13 can be adjusted according to the different models of motor body 4. The first motor 9 can rotate the rotating plate 10, which in turn causes the second motor 11 and the test probe 13 to rotate together. The second motor 11 can rotate the clamping plate 12. The rotation direction of the second motor 11 is different from that of the first motor 9, which can meet the testing requirements of the test probe 13 at different angles on the motor body 4.

[0031] A second frame 18 is provided on one side of the first frame 3 of the conveying device 1. An electric guide rail is slidably connected to the inner side wall of the top of the second frame 18. A second cylinder 19 is slidably connected to the bottom of the electric guide rail. A first motor 20 is fixedly connected to the bottom of the second cylinder 19. A connecting rod 21 is fixedly connected to the output end of the first motor 20. A screwdriver 22 is connected to the bottom of the connecting rod 21.

[0032] Before insulation testing, the cover of the junction box 5 needs to be removed from the motor body 4. The motor body 4 is conveyed to the area below the second frame 18 via the conveyor belt 2. A moving structure is located on the inner side wall of the top of the second frame 18, which moves the second cylinder 19. The second cylinder 19 moves the screwdriver 22 onto the junction box 5. The first motor 20 rotates the connecting rod 21, causing the screwdriver 22 to rotate and remove the bolts on the junction box 5. The screwdriver 22 has a suction capacity for the bolts. Then, in conjunction with the moving structure, the bolts are moved to the replacement table 25, which can automatically remove the bolts from the junction box 5.

[0033] A third cylinder 23 is slidably connected to one side of the second cylinder 19 at the bottom of the electric guide rail, and an electric suction cup 24 is fixedly connected to the bottom of the third cylinder 23.

[0034] After screwdriver 22 removes the bolts on junction box 5, cylinder 23 is moved to junction box 5 via a moving mechanism, allowing electric suction cup 24 to pick up the cover from junction box 5 and move it to replacement table 25. The disassembled motor body 4 is then moved by conveyor belt 2 to below frame 3 for inspection. After inspection, it is moved to below frame 18 for cover installation.

[0035] A replacement table 25 is fixedly connected to one side of the second frame 18. A screwdriver 22 is inserted into the inside of the replacement table 25. A connector 26 is fixedly connected to the top of the screwdriver 22 and is connected to the connecting rod 21.

[0036] The changing table 25 is equipped with multiple sets of screwdrivers 22. Before operation, the screwdrivers 22 can be assembled according to the model of the motor body 4. The connector 26 is assembled through the electromagnet plug at the bottom of the connecting rod 21. With the help of the moving structure and the second cylinder 19, the screwdrivers 22 can be easily replaced.

[0037] The top of the changing table 25 is provided with a rotating rod 28, the bottom end of the rotating rod 28 is fixedly connected with a cleaning brush 29, and the middle part of the rotating rod 28 is fixedly connected with a fan blade 30.

[0038] The conveying device 1 can also perform insulation testing on the used motor body 4. After the motor body 4 is moved to the bottom of the second frame 18, it is moved to the rotating rod 28 on the changing table 25 via the connecting rod 21. The connecting rod 21 is inserted into the rotating rod 28 for connection, and the electromagnet plug of the connecting rod 21 is connected to the rotating rod 28. Then it is moved onto the motor body 4. The first motor 20 causes the rotating rod 28 and the cleaning brush 29 to rotate. The cleaning brush 29 can clean the dust and impurities on the surface of the junction box 5. The rotation of the rotating rod 28 can cause the fan blade 30 to rotate. The rotation of the fan blade 30 accelerates the airflow, which can blow away the dust and improve the cleaning effect on the junction box 5. After cleaning, the rotating rod 28 is placed on the changing table 25 and assembled with the matching screwdriver 22 for disassembly.

[0039] The motor body 4 is provided with an electric push rod on its side, and a positioning clamp 16 is fixedly connected to the side end of the electric push rod. A soft rubber plate 17 is fixedly connected to the side end of the positioning clamp 16.

[0040] To prevent the motor body 4 from shifting position during testing, an electric push rod moves the positioning clamp 16 toward the motor body 4. A soft rubber plate 17 then clamps and secures the motor body 4. Since the motor body 4 has an irregular shape, excessive force from the positioning clamp 16 can damage its surface. The soft rubber plate 17, made of rubber, possesses good elasticity and deformability, allowing it to hold the motor body 4 without damaging its surface.

[0041] The top of the conveying device 1 is fixedly connected to a second electric slide rail 15, which is fixedly connected to the bottom of the changing table 25. An electric push rod is slidably connected to the side end of the second electric slide rail 15.

[0042] Different models of motor bodies 4 can be tested. The position of the soft rubber plate 17 can be adjusted according to the size of the motor body 4. The electric push rod can be moved via the second electric slide rail 15, thereby adjusting the height of the soft rubber plate 17 to accommodate motor bodies 4 of different sizes.

[0043] A monitoring device 14 is fixedly connected to the bottom of the No. 1 motor 9, and the monitoring device 14 is located above the junction box 5.

[0044] The monitoring device 14 is located on one side of motor 9. The monitoring device 14 can record the entire process of the test probe 13 testing the motor body 4, allowing the staff to monitor the testing operation throughout the process. Then, the test probe 13 can be controlled by computer to perform the operation.

[0045] The changing table 25 has a bolt hole 27 inside, which is located on the side near the screwdriver 22.

[0046] The replacement table 25 has multiple sets of bolt holes 27 inside. After the bolts removed by the screwdriver 22 are moved to the replacement table 25, the bolts are inserted into the bolt holes 27 with the bolt tips facing upwards. This makes it easier for the screwdriver 22 to grip and pick up the bolts, preventing bolts from being placed randomly on the replacement table 25 and making assembly inconvenient.

[0047] The working principle of this invention is as follows: During operation, the motor body 4 is placed on the conveyor device 1, and the conveyor belt 2 moves the motor body 4 to a position below the first frame 3. A moving device located at the bottom of the first frame 3 can move the first electric slide rail 6. The moving device of the first frame 3, in conjunction with the first electric slide rail 6, moves the test probe 13 above the motor body 4. The up-and-down movement of the first cylinder 8 moves the test probe 13 to one side of the motor body 4. The first motor 9 allows the test probe 13 to rotate and adjust. The first motor 9, in conjunction with the first electric slide rail 6 and the first cylinder 8, can meet the testing operations of AC asynchronous motors, DC motors, synchronous motors, and servo motors. By setting the test probe 13, whose position and attitude can be flexibly adjusted, a single... This testing device can automatically adapt to and accurately contact the diverse wiring terminals of different types of motors, including AC asynchronous motors, DC motors, synchronous motors, and servo motors. This enables efficient, automated, and universal testing of the insulation performance of various types of motors, significantly improving equipment utilization and testing efficiency. It is particularly suitable for multi-model sampling inspections in mass production and for testing diverse types of reworked motors after malfunctions. It effectively solves the problems of poor versatility, inconvenient switching, and high cost of existing automatic testing devices. The test probe 13 can be adjusted according to the different models of the motor body 4. The first motor 9 can rotate the rotating plate 10, which in turn causes the second motor 11 and the test probe 13 to rotate together. The second motor 11 can... The clamping plate 12 is rotated, and the rotation direction of motor 11 is different from that of motor 9. This allows the test probe 13 to detect the motor body 4 at different angles, preventing the motor body 4 from changing position during the test. An electric push rod moves the positioning clamping plate 16 towards the motor body 4, and the soft rubber plate 17 clamps and fixes the motor body 4. Since the motor body 4 is irregularly shaped, excessive clamping force from the positioning clamping plate 16 can damage its surface. The soft rubber plate 17, made of rubber, has good elasticity and deformability. Its deformability allows it to clamp the motor body 4 without damaging its surface. For testing different models of motor bodies 4, the soft rubber plate can be adjusted according to the size of the motor body 4. Position 17 allows the electric push rod to move via the second electric slide rail 15, thereby adjusting the height of the soft rubber plate 17 to accommodate motor bodies 4 of different sizes. The monitoring device 14 is located on one side of the first motor 9. The monitoring device 14 can record the entire process of the test probe 13 testing the motor body 4, allowing staff to monitor the entire testing operation. The test probe 13 is then controlled by a computer to perform the operation. Before insulation testing, the cover of the junction box 5 needs to be removed. The motor body 4 is conveyed to the area below the second frame 18 via the conveyor belt 2. A moving structure is located on the inner side wall of the top of the second frame 18, which allows the second cylinder 19 to move. The second cylinder 19 can move the screwdriver 22 onto the junction box 5.Motor 20 rotates connecting rod 21, causing screwdriver 22 to rotate and remove bolts from junction box 5. Screwdriver 22 has a suction function for bolts. Then, in conjunction with a moving mechanism, the bolts are moved to replacement table 25, where they can be automatically removed. Replacement table 25 has multiple bolt holes 27 inside. After the bolts removed by screwdriver 22 are moved to replacement table 25, they are inserted into the bolt holes 27 with the bolt tip facing upwards, facilitating subsequent suction and gripping by screwdriver 22. This prevents bolts from being randomly placed on replacement table 25 and inconvenient for assembly. After screwdriver 22 removes the bolts from junction box 5, the moving mechanism moves cylinder 23 to junction box 5, causing electric suction cup 24 to suction and grip the cover of junction box 5, moving it to replacement table 25. The disassembled motor body 4 is then moved by conveyor belt 2 to below frame 3 for inspection. After inspection, it is moved to below frame 18 for cover installation. Replacement table 25 is equipped with... Multiple sets of screwdrivers 22 can be assembled according to the model of the motor body 4 before operation. The connector 26 is assembled through the electromagnet plug at the bottom of the connecting rod 21. With the help of the moving structure and the second cylinder 19, the screwdrivers 22 can be easily replaced. The conveying device 1 can also perform insulation testing on the motor body 4 after use. After the motor body 4 is moved to the bottom of the second frame 18, it is moved to the rotating rod 28 on the changing table 25 through the connecting rod 21. The connecting rod 21 is inserted into the rotating rod 28 for connection. The electromagnet plug of the connecting rod 21 is connected to the rotating rod 28. Then it is moved to the motor body 4. The first motor 20 makes the rotating rod 28 and the cleaning brush 29 rotate. The cleaning brush 29 can clean the dust and impurities on the surface of the junction box 5. The rotation of the rotating rod 28 can make the fan blade 30 rotate. The rotation of the fan blade 30 accelerates the airflow and blows away the dust, improving the cleaning effect of the junction box 5. After cleaning, the rotating rod 28 is placed on the changing table 25 and assembled with the matching screwdrivers 22 for disassembly.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal motor insulation testing device, characterized in that, The device includes a conveying device (1), which has a conveyor belt (2) installed inside. A frame (3) is provided on one side of the conveying device (1). An electric slide rail (6) is slidably connected to the inner side wall of the top of the frame (3). A motor body (4) is provided on the conveyor belt (2). A junction box (5) is fixedly connected to the top of the motor body (4). A cylinder (8) is slidably connected to the bottom of the electric slide rail (6). A motor (9) is fixedly connected to the bottom of the cylinder (8). A test probe (13) is provided at the bottom of the motor (9). An adjustment unit is provided below the motor (9).

2. The universal motor insulation testing device according to claim 1, characterized in that, The adjustment unit includes a rotating plate (10), which is fixed to the output end of a first motor (9). A second motor (11) is fixed to the side end of the rotating plate (10), and a clamping plate (12) is fixed to the output end of the second motor (11). A test probe (13) is installed on the clamping plate (12).

3. The universal motor insulation testing device according to claim 1, characterized in that, A second frame (18) is provided on one side of the first frame (3) of the conveying device (1). An electric guide rail is slidably connected to the inner side wall of the top of the second frame (18). A second cylinder (19) is slidably connected to the bottom of the electric guide rail. A first motor (20) is fixedly connected to the bottom of the second cylinder (19). A connecting rod (21) is fixedly connected to the output end of the first motor (20). A screwdriver (22) is connected to the bottom of the connecting rod (21).

4. A universal motor insulation testing device according to claim 3, characterized in that, A third cylinder (23) is slidably connected to one side of the second cylinder (19) at the bottom of the electric guide rail, and an electric suction cup (24) is fixed to the bottom of the third cylinder (23).

5. A universal motor insulation testing device according to claim 3, characterized in that, A replacement table (25) is fixedly connected to one side of the second frame (18). A screwdriver (22) is inserted into the inside of the replacement table (25). A connector (26) is fixedly connected to the top of the screwdriver (22). The connector (26) is connected to the connecting rod (21).

6. A universal motor insulation testing device according to claim 5, characterized in that, The top of the changing table (25) is provided with a rotating rod (28), the bottom end of the rotating rod (28) is fixed with a cleaning brush (29), and the middle part of the rotating rod (28) is fixed with a fan blade (30).

7. A general-purpose motor insulation testing device according to claim 1, characterized in that, The motor body (4) has an electric push rod on its side, and a positioning clamp (16) is fixedly connected to the side of the electric push rod. A soft rubber plate (17) is fixedly connected to the side of the positioning clamp (16).

8. A universal motor insulation testing device according to claim 1, characterized in that, The top of the conveying device (1) is fixedly connected to a second electric slide rail (15), which is fixedly connected to the bottom of the changing table (25). An electric push rod is slidably connected to the side end of the second electric slide rail (15).

9. A universal motor insulation testing device according to claim 1, characterized in that, A monitoring device (14) is fixedly connected to the bottom of the No. 1 motor (9), and the monitoring device (14) is located above the junction box (5).

10. A general-purpose motor insulation testing device according to claim 5, characterized in that, The changing table (25) has a bolt hole (27) inside, which is located on the side near the screwdriver (22).

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