A frequency converter fault detection device

Abstract

This utility model relates to the field of frequency converter testing technology and discloses a frequency converter fault detection device, including a support base, a processing platform on the top of the support base, a conveyor feeding assembly on the surface of the support base, and an adjustment detection assembly on the top of the processing platform. The conveyor feeding assembly includes a connecting plate, which is fixedly connected to the front of the support base. This frequency converter fault detection device, with its conveyor feeding assembly, allows the frequency converter to be tested to be placed on the top of the conveyor belt near the front. The transmission assembly allows it to be conveyed backward. When it reaches the top of the feeding guide plate, the drive assembly can be turned off, and the adjustment detection assembly performs the test. If a defective frequency converter is detected, the motor can be activated to transport it to the processing platform, between the left and right conveyor belts. Defective frequency converters are screened out, while qualified ones are conveyed backward normally, quickly completing the testing and classification process with good performance.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter testing technology, specifically to a frequency converter fault detection device. Background Technology

[0002] As a core power electronic device for realizing motor speed regulation and energy-saving control, frequency converters have been widely used in industrial production due to their advantages such as wide speed range, good energy-saving effect and high control precision. Their operating status directly determines the continuity of the production line. A sudden failure of the frequency converter and a shutdown of 1 hour may result in a loss of more than one million yuan to the production line, so testing components are needed for detection.

[0003] The prior art discloses a frequency converter fault detection device with announcement number CN221405875U, which includes a workbench. A mounting frame is fixed on the top of the workbench, and a detection mechanism for detecting frequency converters is installed inside the mounting frame. A display for use with the detection mechanism is installed on the top of the mounting frame. A conveying mechanism for conveying frequency converters is installed on the upper part of the workbench, and a drive mechanism for use with the detection mechanism and the drive mechanism is installed at one end of the workbench. Through the arrangement of the conveying mechanism and the detection mechanism, the detection mechanism can pre-place undetected frequency converters on the conveying mechanism while detecting the frequency converters.

[0004] The aforementioned inverter fault detection device can perform inverter placement and detection simultaneously. The detected inverter can be conveyed out via a conveyor mechanism, while undetected inverters are transported to the detection mechanism. Simultaneously, the detected inverter can be removed from the conveyor mechanism. However, the aforementioned inverter fault detection device has a removal device to take out the detected inverter. After removal, it is necessary to reset the qualified and unqualified placement areas. This involves many steps and makes it difficult to quickly differentiate between qualified and unqualified inverters, resulting in poor performance during use. Improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a frequency converter fault detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a frequency converter fault detection device, including a support base, a processing platform on the top of the support base, a conveying and unloading assembly on the surface of the support base, and an adjustment and detection assembly on the top of the processing platform.

[0007] The conveying and unloading assembly includes a connecting plate, which is fixedly connected to the front of the support base. A drive motor is fixedly connected to the left side of the front of the connecting plate. A first pulley is fixedly connected to the output shaft of the drive motor. A transmission belt is driven through the surface of the first pulley. A second pulley is driven through the interior of the transmission belt near its top. A connecting rod is fixedly connected to the interior of the second pulley. Placement plates are fixedly connected to the left and right sides of the front of the processing table. A conveyor belt is driven through the surface of the connecting rod. A connecting frame is fixedly connected to the left side of the interior of the processing table. A motor is fixedly connected to the right side of the connecting frame. A connecting rod is fixedly connected to the output shaft of the motor. A unloading guide plate is fixedly connected to the surface of the connecting rod near its back. An elastic pad is fixedly connected to the left side of the unloading guide plate.

[0008] Preferably, the adjustment and detection assembly includes a placement frame, a sliding block, a connecting rectangular plate, a threaded rod, a threaded sleeve, a stepper motor, a connecting U-shaped frame, a hydraulic telescopic rod, a detection probe, and a limiting plate. The placement frame is fixedly connected to the top of the processing table, and a limiting slide is fixedly connected to the top of the placement frame. The threaded rod is fixedly connected to the output shaft of the stepper motor, and the threaded sleeve is threadedly connected to the surface of the threaded rod. The surface of the sliding block is fixedly connected to the limiting plate near its top end, and the back of the threaded sleeve is fixedly connected to the front of the limiting plate on its top left side. The connecting U-shaped frame is fixedly connected to the bottom of the sliding block, the hydraulic telescopic rod is fixedly connected to the inner top end of the connecting U-shaped frame, and the detection probe is fixedly connected to the bottom of the hydraulic telescopic rod.

[0009] Preferably, the left side of the elastic pad is connected to the inner left side of the processing table.

[0010] Preferably, the placement rack has a sliding groove inside, the area of ​​which is adapted to the inner area of ​​the limiting slide, the width of the sliding block is adapted to the width of the limiting slide, and the sliding block is slidably connected to the inside of the limiting slide.

[0011] Preferably, the limiting plate is slidably connected to the top of the limiting slide. The limiting plate slides on the top of the limiting slide to limit the movement, ensuring that the threaded sleeve can slide along the threaded rod instead of spinning freely, thus ensuring the normal use of the device.

[0012] Preferably, the connecting rectangular plate is fixedly connected to the left side of the front of the limiting slide, and the stepper motor is fixedly connected to the right side of the front of the limiting slide.

[0013] Preferably, the placement plates are fixedly connected to bearing components at one end close to each other, and the left and right sides of the connecting rod are fixedly connected to the inner ring of the bearing components. The bearing components ensure smooth rotation of the connecting rod and prevent the second pulley from being suspended in the air. The device is supported on both sides and can rotate normally, ensuring normal use of the device.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This inverter fault detection device, equipped with a conveyor feeding component, places the inverter to be tested on the top of the conveyor belt near the front. The transmission component then transports it backward. Upon reaching the top of the feeding guide plate, the drive component is shut off, and the detection component is adjusted for testing. If any inverter fails the test, the motor is activated to transport it to the processing table between the left and right conveyor belts. This allows for the screening of defective inverters, while qualified inverters are transported backward normally. This rapid testing and classification process yields excellent results.

[0016] 2. This inverter fault detection device is equipped with an adjustable detection component. During use, the lateral position of the detection can be adjusted. The stepper motor is started to drive the threaded rod to rotate, causing the threaded sleeve to move laterally along the surface of the threaded rod. The positions of the sliding block, the connecting U-shaped frame, the hydraulic telescopic rod, and the detection probe assembly at the bottom are adjusted to facilitate detection of different lateral areas. During detection, the hydraulic telescopic rod can be activated to bring the detection probe closer to the inverter, ensuring detection accuracy and comprehensive detection with good performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the adjustment and detection component of this utility model;

[0020] Figure 4 This is a three-dimensional cross-sectional structural diagram of the support base and conveying feeding assembly of this utility model.

[0021] In the diagram: 1. Support base; 2. Processing table; 3. Conveying and unloading assembly; 301. Connecting plate; 302. Drive motor; 303. First pulley; 304. Second pulley; 305. Transmission belt; 306. Conveyor belt; 307. Connecting rod; 308. Bearing; 309. Connecting frame; 310. Motor; 311. Connecting rod body; 312. Unloading guide plate; 313. Elastic pad; 314. Placement plate; 4. Adjustment and detection assembly; 401. Placement frame; 402. Sliding block; 403. Connecting rectangular plate; 404. Threaded rod; 405. Threaded sleeve; 406. Stepper motor; 407. Connecting U-shaped frame; 408. Hydraulic telescopic rod; 409. Detection probe; 410. Limiting plate body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A frequency converter fault detection device includes a support base 1, a processing table 2 is provided on the top of the support base 1, a conveying and unloading component 3 is provided on the surface of the support base 1, and an adjustment and detection component 4 is provided on the top of the processing table 2.

[0025] The conveying and unloading assembly 3 includes a connecting plate 301, which is fixedly connected to the front of the support base 1. A drive motor 302 is fixedly connected to the left side of the front of the connecting plate 301. A first pulley 303 is fixedly connected to the output shaft of the drive motor 302. A drive belt 305 is drivenly connected to the surface of the first pulley 303. A second pulley 304 is drivenly connected to the inside of the drive belt 305 near its top. A connecting rod 307 is fixedly connected to the inside of the second pulley 304. Placement plates 314 are fixedly connected to the left and right sides of the front of the processing table 2. A conveyor belt 306 is drivenly connected to the surface of the connecting rod 307. A connecting frame 309 is fixedly connected to the left side of the inside of the processing table 2. A motor component 310 is fixedly connected to the right side of component 9. A connecting rod 311 is fixedly connected to the output shaft of the motor component 310. A feeding guide plate 312 is fixedly connected to the surface of the connecting rod 311 near the back. An elastic pad 313 is fixedly connected to the left side of the feeding guide plate 312. A bearing component 308 is fixedly connected to one end of the placement plate 314 close to each other. The left and right sides of the connecting rod 307 are fixedly connected to the inner ring of the bearing component 308. The setting of the bearing component 308 can ensure the smooth rotation of the connecting rod 307. The connection rod 307 can prevent the second pulley 304 from being suspended. It is supported on both sides and can rotate normally, ensuring the normal use of the device. The left side of the elastic pad 313 is connected to the inside left side of the processing table 2.

[0026] The adjustment and detection assembly 4 includes a placement frame 401, a sliding block 402, a connecting rectangular plate 403, a threaded rod 404, a threaded sleeve 405, a stepper motor 406, a connecting U-shaped frame 407, a hydraulic telescopic rod 408, a detection probe 409, and a limiting plate 410. The placement frame 401 is fixedly connected to the top of the processing table 2. A limiting slide is fixedly connected to the top of the placement frame 401. The threaded rod 404 is fixedly connected to the output shaft of the stepper motor 406. The threaded sleeve 405 is threadedly connected to the surface of the threaded rod 404. The limiting plate 410 is fixedly connected to the surface of the sliding block 402 near its top. The top left side of the back of the threaded sleeve 405 is fixedly connected to the front of the limiting plate 410. The connecting U-shaped frame 407 is fixedly connected to the bottom of the sliding block 402. The hydraulic telescopic rod 408 is fixedly connected to the top of the connecting U-shaped frame 407. The detection probe 409 is fixedly connected to the bottom of the hydraulic telescopic rod 408. The placement frame 401 has a sliding groove inside, the area of ​​which matches the inner area of ​​the limiting slide. The width of the sliding block 402 matches the width of the limiting slide. The sliding block 402 is slidably connected to the inside of the limiting slide. The limiting plate 410 is slidably connected to the top of the limiting slide. The limiting plate 410 slides on the top of the limiting slide to limit the movement and ensure that the threaded sleeve 405 can slide along the threaded rod 404 instead of spinning freely, thus ensuring the normal use of the device. The connecting rectangular plate 403 is fixedly connected to the left side of the front of the limiting slide. The stepper motor 406 is fixedly connected to the right side of the front of the limiting slide.

[0027] In use, place the inverter to be tested on the top of the conveyor belt 306 near the front. Then, start the drive motor 302 to drive the first pulley 303 to rotate. With the cooperation of the transmission belt 305 and the second pulley 304, the connecting rod 307 rotates in the same direction to transmit the inverter backward. When placing the inverter, it should be positioned on the top of the conveyor belt 306 near the middle. During the conveying process, the inverter can slide through the connecting frame 309 to the top of the unloading guide plate 312. At this point, the drive motor 302 can be turned off to stop the conveying. After testing with the adjustment detection component 4, determine whether it is qualified. If it is qualified, hold the inverter and push it backward a short distance to return it to the top of the conveyor belt 306 near the back. Then, start the drive motor 302 to continue the backward transmission. If it is unqualified, the motor component 310 needs to be started to drive the connecting rod 311 clockwise. The rotation lifts the feeding guide plate 312 until it reaches a 45-degree angle with the conveyor belt 306, at which point it stops. The frequency converter slides downwards under gravity and falls into the processing table 2, between the two conveyor belts 306. This position allows for the screening of unqualified frequency converters, completing the inspection and classification process. The results are good. During inspection, the adjustment of the inspection component 4 is required. The lateral position of the inspection can be adjusted. The stepper motor 406 is started to drive the threaded rod 404 to rotate, causing the threaded sleeve 405 to move laterally along the surface of the threaded rod 404. The positions of the sliding block 402, the connecting U-shaped frame 407, the hydraulic telescopic rod 408, and the inspection probe 409 are adjusted to facilitate the inspection of different lateral areas. During inspection, the hydraulic telescopic rod 408 can be activated to bring the inspection probe 409 closer to the frequency converter, ensuring inspection accuracy and comprehensive inspection. The results are good.

[0028] 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 the 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 inverter fault detection device comprising a support base (1), characterized in that: The support base (1) is provided with a processing table (2) on its top, and a conveying and feeding assembly (3) is provided on the surface of the support base (1). The processing table (2) is provided with an adjustment and detection assembly (4) on its top. The conveying and unloading assembly (3) includes a connecting plate (301), which is fixedly connected to the front of the support base (1). A drive motor (302) is fixedly connected to the left side of the front of the connecting plate (301). A first pulley (303) is fixedly connected to the output shaft of the drive motor (302). A transmission belt (305) is driven through the surface of the first pulley (303). A second pulley (304) is driven through the interior of the transmission belt (305) near the top. A connecting rod (307) is fixedly connected inside the second pulley (304). The processing table (2) has a placement plate (314) fixedly connected to the left and right sides of the front. The surface of the connecting rod (307) is connected to a conveyor belt (306). The processing table (2) has a connecting frame (309) fixedly connected to the left side inside. The connecting frame (309) has a motor component (310) fixedly connected to the right side. The output shaft of the motor component (310) is fixedly connected to a connecting rod body (311). The surface of the connecting rod body (311) is fixedly connected to a feeding guide plate (312) near the back. The feeding guide plate (312) has an elastic pad (313) fixedly connected to the left side.

2. The frequency inverter fault detection device of claim 1, wherein: The adjustment and detection assembly (4) includes a placement frame (401), a sliding block (402), a connecting rectangular plate (403), a threaded rod (404), a threaded sleeve (405), a stepper motor (406), a connecting U-shaped frame (407), a hydraulic telescopic rod (408), a detection probe (409), and a limiting plate (410). The placement frame (401) is fixedly connected to the top of the processing table (2), and a limiting slide is fixedly connected to the top of the placement frame (401). The threaded rod (404) is fixedly connected to the output shaft of the stepper motor (406). The threaded sleeve (405) is threaded to the surface of the threaded rod (404). The surface of the sliding block (402) is fixedly connected to the limit plate (410) near the top. The back of the threaded sleeve (405) is fixedly connected to the front of the limit plate (410). The connecting U-shaped frame (407) is fixedly connected to the bottom of the sliding block (402). The hydraulic telescopic rod (408) is fixedly connected to the top of the inside of the connecting U-shaped frame (407). The detection probe (409) is fixedly connected to the bottom of the hydraulic telescopic rod (408).

3. The frequency inverter fault detection device of claim 1, wherein: The left side of the elastic pad (313) is connected to the inside left side of the processing table (2).

4. The frequency inverter fault detection device of claim 2, wherein: The placement rack (401) has a sliding groove inside, the area of ​​which is adapted to the inner area of ​​the limiting slide, the width of the sliding block (402) is adapted to the width of the limiting slide, and the sliding block (402) is slidably connected to the inside of the limiting slide.

5. The frequency inverter fault detection device of claim 2, wherein: The limiting plate (410) is slidably connected to the top of the limiting slide.

6. The frequency inverter fault detection device of claim 2, wherein: The connecting square plate (403) is fixedly connected to the front left side of the limiting slide, and the stepping motor (406) is fixedly connected to the front right side of the limiting slide.

7. The frequency inverter fault detection device of claim 1, wherein: The bearing members (308) are fixedly connected to the inner rings of the bearing members (308) on the left and right sides of the connecting rod members (307).

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