A sampling device for analyzing the cleanliness of automotive parts

Abstract

This utility model relates to the field of automotive parts testing technology, specifically a sampling device for analyzing the cleanliness of automotive parts. It includes a base frame with a water tank fixedly connected to its top, and a sampling mechanism housed inside the water tank; a filter box fixedly connected to the back of the top of the water tank, with a detachable filter housing mounted on the filter housing, and a fixing mechanism on the filter housing; and a circulating water supply mechanism between the filter box and the water tank. This utility model, through the combined use of a pressure rod and a spring, achieves automatic clamping and release of the filter assembly, effectively solving the problem of frequent filter replacement required in existing technologies. This not only simplifies the operation process but also avoids particle contamination or loss during replacement, significantly improving the accuracy and repeatability of the test results.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, specifically to a sampling device for analyzing the cleanliness of automotive parts. Background Technology

[0002] In modern automobile manufacturing, the cleanliness of components has a significant impact on product quality. During production, transportation, and assembly, critical components such as engines and transmissions may accumulate metal particles, dust, and other contaminants on their surfaces. These contaminants can lead to abnormal wear and oil passage blockages, severely affecting product reliability and lifespan. Therefore, the automotive industry needs to conduct cleanliness testing on components by sampling surface contaminants and analyzing the quantity, size, and composition of particles.

[0003] Currently, existing sampling devices mainly use filter structures to intercept pollutants. The entire filter assembly needs to be replaced after each sampling, which is not only cumbersome and increases the testing cost, but also easily causes secondary contamination or loss of collected particles during the replacement process, seriously affecting the accuracy and repeatability of the test results. In addition, frequent filter replacement can also lead to a decrease in testing efficiency, which is not conducive to the rapid testing of large batches of samples. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for analyzing the cleanliness of automotive parts, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sampling device for analyzing the cleanliness of automotive parts, comprising:

[0007] The base frame has a water tank fixedly connected to its top, and a sampling mechanism is installed inside the water tank;

[0008] A filter box is fixedly connected to the back of the top of the water tank. The filter box is detachably installed with a filter housing, and the filter housing is provided with a fixing mechanism.

[0009] A circulating water supply mechanism is provided between the filter box and the water tank.

[0010] Preferably, the sampling mechanism includes a perforated shelf that slides vertically and vertically below the interior of the water tank, and electric push rods that are symmetrically fixed to both sides of the bottom end of the base frame. The output shaft of the electric push rod is fixedly connected to the perforated shelf, and a tank cover is hinged to the top of the water tank.

[0011] Preferably, the sampling mechanism further includes a plurality of diversion holes evenly distributed on the upper part of the inner wall of the water tank, and a water supply pipe fixedly connected to the outside of the right side of the water tank. The water supply pipe passes through the side wall of the water tank and communicates with the collection cavity of the inner diversion holes.

[0012] Preferably, the fixing mechanism includes a pressure rod vertically slidably connected to the inside of the four sides of the filter box, and a movable groove opened on the bottom wall of the filter box. A clamping plate is slidably connected to the inside of the movable groove. The bottom end of the pressure rod slides through the movable groove and is fixedly connected to the clamping plate. A retaining ring is fixedly connected to the top end of the pressure rod. A spring is movably sleeved on the outside of the pressure rod. The upper and lower ends of the spring are fixedly connected to the retaining ring and the filter box, respectively. A plurality of water seepage holes are evenly distributed at the bottom end of the filter box. Filter paper is clamped between the clamping plate and the filter box.

[0013] Preferably, the fixing mechanism further includes a pressure cap hinged to the top of the filter box, and a fixing block fixedly connected to the middle of the right end face of the pressure cap. A locking screw is threadedly connected to the middle of the fixing block. A threaded hole matching the locking screw is opened in the middle of the top right end of the filter box. A sealing frame is fixedly connected to the bottom of the pressure cap. When the pressure cap is closed, the sealing frame presses down the retaining ring.

[0014] Preferably, the circulating water supply mechanism includes a slurry pump fixedly connected to the outside of the right side of the filter box. The output end of the slurry pump is fixedly connected to an input pipe. The output end of the input pipe extends to the middle of the filter box and is located above the filter box. The input end of the slurry pump is connected to the outlet at the bottom of the water tank through a pipe. The outlet at the bottom of the filter box is connected to a diversion pipe and a drainage pipe through a three-way valve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This sampling device for analyzing the cleanliness of automotive parts achieves automatic clamping and release of the filter assembly through the cooperation of a pressure rod and a spring. This effectively solves the problem of frequent filter replacement required in the prior art, simplifies the operation process, avoids particle contamination or loss during replacement, and significantly improves the accuracy and repeatability of the test results.

[0017] 2. This sampling device for analyzing the cleanliness of automotive parts achieves efficient recycling of cleaning fluid through the combined use of a circulating water supply mechanism and a multi-directional diversion flushing structure. This not only solves the problem of resource waste caused by traditional single-pass filtration, but also ensures the full removal and collection of contaminants from the surface of the parts, significantly improving detection efficiency and reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the perforated storage board structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the sealing pressure frame structure of this utility model;

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Base frame; 2. Water tank; 3. Filter box; 4. Filter tray; 5. Perforated shelf; 6. Electric push rod; 7. Tank cover; 8. Diversion hole; 9. Water supply pipe; 10. Pressure rod; 11. Movable groove; 12. Clamping plate; 13. Retaining ring; 14. Spring; 15. Pressure cap; 16. Fixing block; 17. Locking screw; 18. Sealing frame; 19. Slurry pump; 20. Input pipe; 21. Filter paper; 22. PLC controller. Detailed Implementation

[0023] 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.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A sampling device for analyzing the cleanliness of automotive parts includes a base frame 1, with a water tank 2 fixedly connected to its top. A sampling mechanism is installed inside the water tank 2. The sampling mechanism includes a perforated shelf 5 slidably connected to the lower interior of the water tank 2, and electric push rods 6 symmetrically fixed to both sides of the bottom of the base frame 1. The output shaft of the electric push rods 6 is fixedly connected to the perforated shelf 5. A tank cover 7 is hinged to the top of the water tank 2. The sampling mechanism also includes several diversion holes 8 evenly distributed on the upper inner wall of the water tank 2, and a water supply pipe 9 fixedly connected to the outside right side of the water tank 2. The water supply pipe 9 penetrates the side wall of the water tank 2 and communicates with the collection chamber of the internal diversion holes 8. A filter box 3 is also included. The filter box 3 is fixedly connected to the top back of the water tank 2. A filter box 4 is detachably installed on the filter box 3. A fixing mechanism is provided on the filter box 4, including a pressure rod 10 vertically slidably connected to the inside of the four sides of the filter box 4, and a movable groove 11 opened on the bottom wall of the filter box 4. A clamping plate 12 is slidably connected up and down inside the movable groove 11. The bottom end of the pressure rod 10 slides through the movable groove 11 and is fixedly connected to the clamping plate 12. A retaining ring 13 is fixedly connected to the top of the pressure rod 10. A spring 14 is movably sleeved on the outside of the pressure rod 10. The upper and lower ends of the spring 14 are fixedly connected to the retaining ring 13 and the filter box 4, respectively. A telescopic anti-telescopic sleeve is also fitted on the outside of the spring 14. The water jacket and the telescopic waterproof jacket are fixedly connected at both ends to the retaining ring 13 and the filter box 4, respectively. The bottom end of the filter box 4 has several seepage holes evenly distributed. Filter paper 21 is clamped between the clamping plate 12 and the filter box 4. The fixing mechanism also includes a pressure cover 15 hinged to the top of the filter box 3, and a fixing block 16 fixedly connected to the middle of the right end face of the pressure cover 15. A locking screw 17 is threadedly connected to the middle of the fixing block 16. A threaded hole matching the locking screw 17 is opened in the middle of the top right end of the filter box 3. A sealing frame 18 is fixedly connected to the bottom end of the pressure cover 15. When the pressure cover 15 is closed, the sealing frame 18 presses down on the retaining ring 13. A circulation supply is provided between the filter box 3 and the water tank 2. The water supply mechanism includes a slurry pump 19 fixedly connected to the outside of the right side of the filter box 3. The output end of the slurry pump 19 is fixedly connected to an input pipe 20. The output end of the input pipe 20 extends to the middle of the filter box 3 and is located above the filter box 4. The input end of the slurry pump 19 is connected to the outlet at the bottom of the water tank 2 through a pipe. The outlet at the bottom of the filter box 3 is connected to the diversion hole 8 pipe and the drainage pipe through a three-way valve. A PLC controller 22 is also fixedly connected to one side of the water tank 2. The PLC controller 22 is electrically connected to the slurry pump 19 and the electric push rod 6. The PLC controller 22 is used to control the start and stop of the slurry pump 19 and the electric push rod 6.

[0026] In this embodiment, the automatic clamping and release of the filter assembly is achieved through the cooperation of the pressure rod 10 and the spring 14, which effectively solves the problem of frequent replacement of filter assembly in the prior art. It not only simplifies the operation process, but also avoids particle contamination or loss during the replacement process, and significantly improves the accuracy and repeatability of the test results.

[0027] Furthermore, by combining the circulating water supply mechanism with the multi-directional diversion flushing structure, the cleaning fluid can be efficiently recycled, which not only solves the problem of resource waste caused by traditional single filtration, but also ensures the full removal and collection of contaminants on the surface of parts, greatly improving the detection efficiency and reliability.

[0028] Working principle: First, the automotive parts to be tested are placed on the perforated plate 5 inside the water tank 2. After closing the tank cover 7, cleaning fluid is injected into the water tank 2 through the water supply pipe 9. The cleaning fluid is evenly distributed through the collection chamber of the diversion hole 8 and sprayed out from multiple diversion holes 8 to form a multi-directional flushing flow. The electric push rod 6 is activated to drive the perforated plate 5 and the parts to move up and down in the water tank 2, so that the surface of the parts is in full contact with the cleaning fluid, and the contaminants attached to the surface of the parts are washed off. After the cleaning fluid containing contaminants accumulates at the bottom of the water tank 2, it is drawn by the slurry pump 19 through the pipeline and transported to the filter box 4 in the middle of the filter box 3 through the input pipe 20. Under the action of gravity, the cleaning fluid passes through the filter paper 21 held in the filter box 4. The contaminants are intercepted by the filter paper 21. The filtered cleaning fluid flows into the bottom of the filter box 3 through the seepage hole at the bottom of the filter box 4. At this time, the cleaning fluid passes through the three The valve controls the liquid flow direction, allowing the filtered cleaning liquid to flow back to the diversion hole 8 through the pipeline for circulation rinsing, or to be discharged through the drain pipe. During filtration, the pressure cap 15 presses the sealing frame 18 with the locking screw 17. The sealing frame 18 presses down the retaining ring 13, causing the pressure rod 10 to overcome the elastic force of the spring 14 and move the clamping plate 12 downward, thereby ensuring that the filter paper 21 remains flat and fixed between the filter box 4 and the clamping plate 12. When it is necessary to remove the filter paper 21, loosen the locking screw 17 and open the pressure cap 15. At this time, the sealing frame 18 no longer applies pressure to the retaining ring 13. Under the elastic restoring force of the spring 14, the pressure rod 10 drives the clamping plate 12 to return to its original position, releasing the clamping force between the clamping plate 12 and the filter box 4. The filter paper 21 automatically loosens and can be removed for subsequent cleanliness analysis. After sampling, the filter paper 21 with contaminants can be easily removed for subsequent cleanliness analysis.

[0029] In the specific implementation of this technical solution, the slurry pump 19 can be configured with conventional wear-resistant slurry pumps (such as high-chromium alloy impeller pumps, rubber-lined pumps, or ceramic-lined pumps). Although these types of slurry pumps are not described in detail in the technical solution, they are conveying equipment that can be conventionally selected by those skilled in the art based on actual working conditions. Their structural parameters and working principles follow well-known technologies in this field and do not affect the implementation of the core innovation of this solution. In practical applications, the slurry pump 19 is mainly used to convey contaminated liquids containing dust. When the detected components carry metal particles, a high-chromium cast iron slurry pump with an impeller material hardness of HRC≥58 is preferred. Its specific type and connection method can be adjusted according to production requirements, all of which fall within the reasonable extension range of this technical solution.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive parts cleanliness analysis sampling device characterized by: include The base frame (1) has a water tank (2) fixedly connected to its top, and a sampling mechanism is installed inside the water tank (2); A filter box (3) is fixedly connected to the back of the top of the water tank (2). The filter box (3) is detachably equipped with a filter box (4), and a fixing mechanism is provided on the filter box (4). A circulating water supply mechanism is provided between the filter box (3) and the water tank (2).

2. The automotive parts cleanliness analysis sampling device of claim 1, wherein: The sampling mechanism includes a perforated shelf (5) that slides down and up inside the water tank (2), and an electric push rod (6) that is symmetrically fixed to both sides of the bottom of the base frame (1). The output shaft of the electric push rod (6) is fixedly connected to the perforated shelf (5), and a tank cover (7) is hinged to the top of the water tank (2).

3. The automotive parts cleanliness analysis sampling device of claim 2, wherein: The sampling mechanism also includes several diversion holes (8) evenly distributed on the upper part of the inner wall of the water tank (2), and a water supply pipe (9) fixedly connected to the outside of the right side of the water tank (2). The water supply pipe (9) penetrates the side wall of the water tank (2) and communicates with the collection cavity of the inner diversion holes (8).

4. The device of claim 1, wherein: The fixing mechanism includes a pressure rod (10) vertically slidably connected to the inside of the four sides of the filter box (4), and a movable groove (11) opened on the bottom wall of the filter box (4). A clamping plate (12) is slidably connected inside the movable groove (11). The bottom end of the pressure rod (10) slides through the movable groove (11) and is fixedly connected to the clamping plate (12). A retaining ring (13) is fixedly connected to the top of the pressure rod (10). A spring (14) is movably sleeved on the outside of the pressure rod (10). The upper and lower ends of the spring (14) are fixedly connected to the retaining ring (13) and the filter box (4) respectively. Several water seepage holes are evenly distributed at the bottom of the filter box (4). Filter paper (21) is clamped between the clamping plate (12) and the filter box (4).

5. A device for sampling and analyzing cleanliness of an automotive part according to claim 4, characterized in that: The fixing mechanism also includes a pressure cap (15) hinged to the top of the filter box (3) and a fixing block (16) fixedly connected to the middle of the right end face of the pressure cap (15). The middle of the fixing block (16) is threaded with a locking screw (17). The middle of the top right end of the filter box (3) is provided with a threaded hole that matches the locking screw (17). A sealing frame (18) is fixedly connected to the bottom of the pressure cap (15). When the pressure cap (15) is closed, the sealing frame (18) presses down the retaining ring (13).

6. The automotive parts cleanliness analysis sampling device of claim 3, wherein: The circulating water supply mechanism includes a slurry pump (19) fixedly connected to the outside of the right side of the filter box (3). The output end of the slurry pump (19) is fixedly connected to an input pipe (20). The output end of the input pipe (20) extends to the middle of the filter box (3) and is located above the filter box (4). The input end of the slurry pump (19) is connected to the outlet at the bottom of the water tank (2) through a pipe. The outlet at the bottom of the filter box (3) is connected to the diversion hole (8) pipe and the drainage pipe through a three-way valve.

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