Frequency converter detection device
By designing an automated inverter testing device, which uses a conveyor belt and testing contacts, the problems of instability and high manpower consumption in manual testing are solved, and efficient and stable inverter testing is achieved.
Patent Information
- Application Number
- CN202423064273.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing frequency converter testing methods rely on human experience, resulting in unstable test results and wasting a lot of manpower and time.
Design a frequency converter testing device that uses an automated conveyor belt and testing contacts to identify the position of the frequency converter through a photoelectric sensor, thereby achieving automated testing.
It has automated the testing of frequency converters, saving labor costs and improving testing efficiency and the stability of results.
Smart Images
Figure CN223788990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frequency converter testing technology, specifically to a frequency converter testing device. Background Technology
[0002] A frequency converter (FD) is an electronic device that converts AC power into a variable frequency and voltage output. In industrial production, FDs are widely used for motor starting and speed regulation. By changing the power supply frequency, FDs can achieve stepless speed regulation of motors, enabling higher efficiency and more precise control. Simultaneously, FDs can eliminate the impact forces generated during startup and shutdown, protecting equipment safety.
[0003] Currently, frequency converters need to be tested before leaving the factory. However, the traditional testing method for frequency converters is usually manual testing. This method relies on human experience and skills, which requires a lot of manpower and time. In addition, the results of manual testing are often affected by human experience and skills, and the test results may be unstable and uncertain. Utility Model Content
[0004] The purpose of this invention is to provide a frequency converter testing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a frequency converter testing device, including a mounting frame, with conveyor rollers rotatably connected to the interior of both ends of the mounting frame, a conveyor belt sleeved on the outer side between the conveyor rollers, a drive motor fixedly connected to the outer side of one end of the mounting frame, the output end of the drive motor fixedly connected to one end close to the conveyor roller, a plurality of identification plates fixedly connected to the surface of the conveyor belt, two sliding grooves being formed on the surface of both ends of the identification plates, sliders being slidably connected inside the sliding grooves, and clamping plates fixedly connected between adjacent sliders.
[0006] As a further preferred embodiment of this technical solution, two symmetrically arranged connecting cylinders are fixedly connected to the center of the top of the identification plate. Limiting rods are movably connected inside both ends of the two connecting cylinders, and springs are fixedly connected inside both ends of the two connecting cylinders. One end of the spring is fixedly connected to one end of the adjacent limiting rod.
[0007] As a further preferred embodiment of this technical solution, a connecting frame is fixedly connected to the top of one end of the mounting bracket, a geared motor is fixedly connected to the top of one end of the connecting frame, and two connecting blocks are fixedly connected to the bottom of the inner side of the connecting frame. A screw is fixedly connected to the output end of the geared motor, one end of the screw is rotatably connected to the top of the connecting block, and a guide rod is fixedly connected to the top of the other connecting block.
[0008] As a further preferred embodiment of this technical solution, a connecting plate is threadedly connected to the outer side of the screw, and one end of the connecting plate is movably connected to the outer side of the guide rod.
[0009] As a further preferred embodiment of this technical solution, a connecting frame is fixedly connected to the bottom of the connecting plate, and a plurality of electric push rods are fixedly connected to the middle of the inner side of the connecting frame, with detection contacts fixedly connected to the output ends of the plurality of electric push rods.
[0010] As a further preferred embodiment of this technical solution, a photoelectric sensor is fixedly connected to the bottom of one end of the connecting plate, and a positioning mark is provided on the surface of the identification plate near the photoelectric sensor.
[0011] This utility model provides a frequency converter testing device with the following advantages: The frequency converter is fixed by a clamp and transported to the testing contacts by a conveyor belt for automatic testing. The entire testing process is fully automated, saving a lot of labor costs, improving testing efficiency, and improving the stability of testing results. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the identification plate structure of this utility model;
[0014] Figure 3 This is a top view of the connecting plate structure of this utility model;
[0015] Figure 4 This is a schematic diagram of the connecting frame structure of this utility model.
[0016] In the diagram: 1. Mounting frame; 2. Conveyor belt; 3. Drive motor; 4. Identification plate; 5. Clamping plate; 6. Connecting frame; 7. Gear motor; 8. Screw; 9. Slide groove; 10. Slider; 11. Connecting cylinder; 12. Limiting rod; 13. Spring; 14. Positioning marker; 15. Connecting block; 16. Guide rod; 17. Connecting plate; 18. Connecting frame; 19. Detection contact; 20. Photoelectric sensor; 21. Electric push rod. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0018] This utility model provides a technical solution: such as Figures 1-4As shown in this embodiment, a frequency converter detection device includes a mounting frame 1. Conveyor rollers are rotatably connected to the interior of both ends of the mounting frame 1. A conveyor belt 2 is sleeved on the outer side between the conveyor rollers. A drive motor 3 is fixedly connected to the outer side of one end of the mounting frame 1. The output end of the drive motor 3 is fixedly connected to one end of the conveyor roller. Several identification plates 4 are fixedly connected to the surface of the conveyor belt 2. Two grooves 9 are opened on the surface of both ends of the identification plates 4. Slider blocks 10 are slidably connected inside the grooves 9. Clamping plates 5 are fixedly connected between adjacent sliders 10. The drive motor 3 drives the conveyor rollers to rotate, thereby causing the conveyor belt 2 to rotate and transport the frequency converter.
[0019] Two symmetrically arranged connecting cylinders 11 are fixedly connected to the middle of the top of the identification plate 4. Limiting rods 12 are movably connected inside both ends of the two connecting cylinders 11, and springs 13 are fixedly connected inside both ends of the two connecting cylinders 11. One end of the spring 13 is fixedly connected to one end of the adjacent limiting rod 12.
[0020] Place the inverter between the clamping plates 5 and position one end of the inverter terminal to the left. With the cooperation of the slider 10 and the slide groove 9, the inverter will open the clamping plates 5. The clamping plates 5 will push the limit rod 12 and the compression spring 13 inside the connecting cylinder 11. The spring 13 applies a reaction force to fix the clamping plates 5 to the inverter, preventing the inverter from running off-center during transportation and causing it to be undetectable.
[0021] A connecting frame 6 is fixedly connected to the top of one end of the mounting bracket 1. A geared motor 7 is fixedly connected to the top of one end of the connecting frame 6. Two connecting blocks 15 are fixedly connected to the bottom of the inner side of the connecting frame 6. A screw 8 is fixedly connected to the output end of the geared motor 7. One end of the screw 8 is rotatably connected to the top of the connecting block 15. A guide rod 16 is fixedly connected to the top of the other connecting block 15.
[0022] A connecting plate 17 is threadedly connected to the outer side of the screw 8. One end of the connecting plate 17 is movably connected to the outer side of the guide rod 16. The screw 8 is driven to rotate by the geared motor 7, which causes the connecting plate 17 to move up and down along the screw 8 under the limit of the guide rod 16, so as to adjust the position of the connecting plate 17 and thus adjust the distance between the detection contact 19 and the frequency converter.
[0023] A connecting frame 18 is fixedly connected to the bottom of the connecting plate 17. Several electric push rods 21 are fixedly connected to the middle of the inner side of the connecting frame 18. The output ends of the electric push rods 21 are all fixedly connected to detection contacts 19. When the frequency converter is transported to the area below the detection contacts 19, the electric push rods 21 drive the detection contacts 19 to move downwards, so that they contact the frequency converter terminals for detection. Depending on the detection terminals, the corresponding electric push rods 21 will be activated in sequence.
[0024] A photoelectric sensor 20 is fixedly connected to the bottom of one end of the connecting plate 17. A positioning mark 14 is provided on the surface of the identification plate 4 near the photoelectric sensor 20. The photoelectric sensor 20 is model CZ-V21AP. The photoelectric sensor 20 is used to detect the gray value of the surface of the identification plate 4, thereby identifying the position of the frequency converter. When the identification plate 4 enters the identification area, the photoelectric sensor 20 operates and monitors the position of the positioning mark 14. After the positioning mark 14 reaches directly below the photoelectric sensor 20, the photoelectric sensor 20 sends an electrical signal to the drive motor 3 controller to stop the drive motor 3, so that the detection contact 19 can detect the frequency converter.
[0025] This utility model provides a frequency converter detection device, the specific working principle of which is as follows: First, the frequency converter is placed between the clamping plates 5, with one end of the frequency converter terminal facing to the left. With the cooperation of the slider 10 and the slide groove 9, the frequency converter will open the clamping plate 5. The clamping plate 5 will push the limiting rod 12 and the compression spring 13 in the connecting cylinder 11. The spring 13 applies a reaction force to fix the frequency converter in the clamping plate 5. Then, the drive motor 3 drives the conveyor roller to rotate, and then the conveyor belt 2 runs to transport the frequency converter. When the identification plate 4 enters the identification area, the photoelectric sensor 20 monitors the position of the positioning mark 14. When the positioning mark 14 reaches directly below the photoelectric sensor 20, the photoelectric sensor 20 sends an electrical signal to the drive motor 3 controller to stop the drive motor 3. At this time, the electric push rod 21 drives the detection contact 19 downward to contact the frequency converter terminal for detection.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A frequency converter detection device comprising a mounting bracket (1), characterised in that: Both ends of the mounting frame (1) are rotatably connected with conveying rollers, the outer side between the conveying rollers is sleeved with a conveying belt (2), the outer side of one end of the mounting frame (1) is fixedly connected with a driving motor (3), one end of the conveying roller fixedly connected with the output end of the driving motor (3), the surface of the conveying belt (2) is fixedly connected with a plurality of identification plates (4), the surface of both ends of the identification plate (4) is provided with two sliding grooves (9), the inner side of the sliding groove (9) is slidably connected with a sliding block (10), and the sliding block (10) is fixedly connected with a clamping plate (5).
2. The frequency converter detection device of claim 1, wherein: The top of the identification plate (4) is fixedly connected with two symmetrically arranged connecting barrels (11), the inner side of both ends of the connecting barrel (11) is movably connected with a limiting rod (12), and the inner side of both ends of the connecting barrel (11) is fixedly connected with a spring (13), one end of the spring (13) is fixedly connected with one end of the limiting rod (12).
3. The frequency converter detection device of claim 1, wherein: The top of one end of the mounting frame (1) is fixedly connected with a connecting frame (6), the top of one end of the connecting frame (6) is fixedly connected with a speed reducer (7), and the inner side of the connecting frame (6) is fixedly connected with two connecting blocks (15), the output end of the speed reducer (7) is fixedly connected with a screw rod (8), one end of the screw rod (8) is rotatably connected with the top of the connecting block (15), and the other connecting block (15) is fixedly connected with a guide rod (16).
4. The frequency converter detection device of claim 3, wherein: The outer side of the screw rod (8) is threadedly connected with a connecting plate (17), one end of the connecting plate (17) is movably connected with the outer side of the guide rod (16).
5. A frequency converter detection device according to claim 4, characterised in that: The bottom of the connecting plate (17) is fixedly connected with a connecting frame (18), the inner side of the connecting frame (18) is fixedly connected with a plurality of electric push rods (21), and the output end of the electric push rod (21) is fixedly connected with a detection contact (19).
6. The frequency converter detection device of claim 4, wherein: The bottom of one end of the connecting plate (17) is fixedly connected with a photoelectric sensor (20), and the surface of one end of the identification plate (4) close to the photoelectric sensor (20) is provided with a positioning mark (14).