Pre-cleaning equipment for automatic grease injection of bearing

By combining the cleaning tank and purification tank, and integrating ultrasonic cleaning with the movement of the filter screen, the problem of low cleaning efficiency in existing equipment is solved, achieving efficient cleaning and filtration, and improving the practicality of the equipment and the utilization rate of the cleaning solution.

CN223916131UActive Publication Date: 2026-02-17HANGZHOU YIZHONG AUTO PARTS MFG CO LTD
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Patent Information

Application Number
CN202520122028.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-17
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing bearing cleaning equipment can only clean one bearing at a time, and the suction cleaning method takes a long time, resulting in low efficiency in cleaning large batches of bearings.

Method used

It adopts a cleaning tank and purification tank structure, and uses a combination of ultrasonic cleaning and filter screen. The cleaning fluid is circulated by a water pump, and the filter screen is driven by a motor to achieve efficient filtration and cleaning.

Benefits of technology

It improves bearing cleaning efficiency, avoids filter clogging, enhances the practicality and applicability of the equipment, and increases the utilization rate of cleaning fluid.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses pre-cleaning equipment for automatic grease injection of a bearing, and relates to the technical field of bearing cleaning equipment, the pre-cleaning equipment comprises a cleaning box and a purifying box, the purifying box is located on one side of the cleaning box, and the cleaning box is communicated with the purifying box. According to the bearing cleaning device, the cleaning efficiency is higher by changing the cleaning mode, when the bearing cleaning device is used, a large number of bearings are placed in the storage frame and immersed in the cleaning liquid in the cleaning box, the bearings can be cleaned in cooperation with ultrasonic waves generated by the ultrasonic generator, and chippings and grease are mixed in the cleaning liquid after cleaning is completed; the cleaning fluid can be pumped into the purifying box through the water pump and filtered by the filter screen, the filtered cleaning fluid can flow back into the cleaning box, chippings and grease can stay above the filter screen, the second motor drives the rotary disc to rotate in the filtering process, and the filter screen is in a moving state all the time in cooperation with the multiple springs at the end of the filter screen. And the filter screen can be effectively prevented from being blocked by chippings and grease, so that the device has higher practicability.
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Description

Technical Field

[0001] This utility model relates to the technical field of bearing cleaning equipment, and in particular to a pre-cleaning device for automatic grease injection of bearings. Background Technology

[0002] Bearings are key components used to support and reduce friction, and are commonly found in rotating parts of vehicles, such as engines, transmission systems, steering systems, and tire components. The main function of automotive bearings is to support and roll to reduce friction in order to achieve rotational motion. They help reduce friction and wear between rotating parts, while bearing the load from the rotating parts. Bearings are also greased at the factory to improve their service life and lubrication. Before greasing, the surface of the bearing needs to be cleaned to prepare for the subsequent grease injection process. To improve the grease injection effect and the service life of the bearing, pre-cleaning equipment is used.

[0003] In the prior art, Chinese utility model patent CN220879778U discloses a pre-cleaning device for automatic grease injection of automotive bearings, including a processing table, a loading frame fixedly installed on the top of the processing table, a support arm fixedly installed on the loading frame, a pressing mechanism provided on the support arm, a receiving tube rotatably installed on the processing table, a top-fitting seat fixedly installed on the top of the processing table and outside the receiving tube, a top-fitting mechanism provided on the inner side of the top-fitting seat, a driving mechanism provided inside the processing table, a suction mechanism provided inside the receiving tube extending into the processing table, and the pressing mechanism including an electric push rod fixedly installed on the support arm, a pressing plate fixedly installed below the support arm on the electric push rod, and ventilation holes evenly opened on the pressing plate.

[0004] In existing technology, the aforementioned device clamps the upper and lower sides of the bearing using a clamping and pressing mechanism, and then drives the bearing balls to move continuously inside the bearing via a drive mechanism. Simultaneously, a suction mechanism collects debris from the bearing, thus cleaning the interior and reducing wear between the balls and the inner and outer rings, extending the bearing's service life. However, certain problems still exist in practical use. The aforementioned device can only clean one bearing at a time, and the suction cleaning method is time-consuming, making it inefficient for cleaning large batches of bearings, thus presenting certain limitations. Utility Model Content

[0005] The purpose of this invention is to address the limitations of existing devices that can only clean one bearing at a time, have a long cleaning time due to suction, and are inefficient when cleaning large quantities of bearings. Therefore, this invention proposes a pre-cleaning device for automatic grease injection of bearings.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a pre-cleaning device for automatic grease injection of bearings, comprising a cleaning tank and a purification tank, wherein the purification tank is located on one side of the cleaning tank, and the cleaning tank and the purification tank are connected. A cover plate is fixedly installed on the upper end of the purification tank by screws. A movable groove is provided in the middle of the purification tank, and a filter screen is slidably engaged in the middle of the movable groove. Multiple springs are evenly fixedly installed on one end of the filter screen, and one end of each spring is fixedly connected to one side of the movable groove. A [missing information - likely a device or component] is fixedly installed in the middle of the other end of the filter screen. A connecting rod is included, with the moving groove passing through one side of the purification box and communicating with it. A fixing plate is fixedly installed at one end of the connecting rod, and a guide groove is provided in the middle of the fixing plate. A second motor is fixedly installed at one end of the purification box, and a turntable is fixedly installed at one end of the second motor. An eccentric rod is fixedly installed on one side of the turntable, and the eccentric rod is slidably engaged with the middle of the guide groove. A return liquid pipe is fixedly connected to the lower side of one side of the purification box, and one end of the return liquid pipe is fixedly connected to one side of the middle of one end of the cleaning box. A water pump is fixedly connected to one side of the upper end of the purification box.

[0007] Preferably, a limiting slide groove is provided on the upper and lower sides of one side of the moving groove, and a limiting slide plate is fixedly installed on the upper and lower sides of the middle of one end of the filter screen, with the limiting slide plate abutting against the two sides of the limiting slide groove.

[0008] Preferably, a bracket is fixedly installed at the upper end of the cleaning tank, a slide rod is fixedly installed at the lower part of one end of the bracket, a motor is fixedly installed at the upper part of the middle of the other end of the bracket, a lead screw is fixedly installed at the output end of the motor, one end of the slide rod is fixedly installed on one side of the cleaning tank, and one end of the lead screw is rotatably connected to the other side of the cleaning tank.

[0009] Preferably, a storage frame is slidably engaged in the middle of the cleaning tank, one end of the storage frame is slidably engaged with a sliding rod, and the other end of the storage frame is threadedly connected to a lead screw.

[0010] Preferably, multiple ultrasonic generators are evenly fixedly installed at the bottom of the storage frame, and limit plates are fixedly installed at the four corners of the lower middle part of the cleaning box, with the bottom of the storage frame abutting against the limit plates.

[0011] Preferably, a liquid injection pipe is fixedly connected to the middle of the other end of the cleaning tank, and a drain pipe is fixedly connected to the other side of the middle of one end of the cleaning tank, with one end of the drain pipe fixedly connected to a water pump.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the cleaning efficiency is improved by changing the cleaning method. During use, a large number of bearings are placed in the storage frame and submerged in the cleaning solution in the cleaning tank. The ultrasonic waves generated by the ultrasonic generator clean the bearings. After cleaning, the cleaning solution will contain debris and grease, which can be pumped into the purification tank and filtered by the filter screen. The filtered cleaning solution will flow back into the cleaning tank, and the debris and grease will remain on top of the filter screen. During the filtration process, the motor drives the turntable to rotate, and the multiple springs at the end of the filter screen keep the filter screen in motion, which can effectively prevent debris and grease from clogging the filter screen, making the device more practical.

[0014] 2. In this utility model, the end of the filter screen is provided with a limiting slide plate. The limiting slide plate can abut against both ends of the limiting slide groove. When the filter screen moves back and forth, it can limit the position of the filter screen and avoid the phenomenon that the spring is stretched too much due to excessive movement of the filter screen, which would prevent the spring from being unable to fully reset.

[0015] 3. In this utility model, limiting plates are provided at the four corners of the middle part of the cleaning box. The limiting plates can limit the position of the storage frame and prevent the storage frame from moving down too much and causing damage to the ultrasonic generator. Attached Figure Description

[0016] Figure 1 This is a first perspective view of a pre-cleaning device for automatic grease injection of bearings proposed in this utility model;

[0017] Figure 2 This is a second perspective view of a pre-cleaning device for automatic grease injection of bearings proposed in this utility model;

[0018] Figure 3 This utility model provides a structural diagram of the cleaning box of an automatic bearing grease injection pre-cleaning device.

[0019] Figure 4 This is a first cross-sectional view of the purification box of an automatic bearing grease injection pre-cleaning device proposed in this utility model;

[0020] Figure 5 This is a second cross-sectional view of the purification box of an automatic bearing grease injection pre-cleaning device proposed in this utility model;

[0021] Figure 6 This is a schematic diagram showing the connection relationship between the eccentric rod and the guide groove of a pre-cleaning device for automatic grease injection of bearings proposed in this utility model.

[0022] Legend: 1. Cleaning tank; 11. Support; 12. Motor 1; 13. Lead screw; 14. Slide rod; 15. Storage frame; 16. Ultrasonic generator; 17. Limiting plate; 18. Injection pipe; 19. Drain pipe; 2. Purification tank; 21. Cover plate; 22. Water pump; 23. Filter screen; 24. Moving groove; 25. Spring; 26. Connecting rod; 27. Fixing plate; 28. Guide groove; 29. ​​Motor 2; 30. Turntable; 31. Eccentric rod; 32. Limiting slide groove; 33. Limiting slide plate; 34. Return pipe. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figure 1-6 As shown, this utility model provides a pre-cleaning device for automatic grease injection of bearings, including a cleaning tank 1 and a purification tank 2. The purification tank 2 is located on one side of the cleaning tank 1, and the cleaning tank 1 and purification tank 2 are connected. A cover plate 21 is fixedly installed on the upper end of the purification tank 2 by screws. A movable groove 24 is opened in the middle of the purification tank 2. A filter screen 23 is slidably engaged in the middle of the movable groove 24. Multiple springs 25 are evenly fixedly installed on one end of the filter screen 23. One end of the multiple springs 25 is fixedly connected to one side of the movable groove 24. A connecting rod 26 is fixedly installed in the middle of the other end of the filter screen 23. The movable groove 24 passes through... A connecting rod 26 passes through one side of the purification box 2 and is connected to the moving groove 24. A fixed plate 27 is fixedly installed at one end of the connecting rod 26. A guide groove 28 is opened in the middle of the fixed plate 27. A motor 29 is fixedly installed at one end of the purification box 2. A turntable 30 is fixedly installed at one end of the motor 29. An eccentric rod 31 is fixedly installed on one side of the turntable 30. The eccentric rod 31 is slidably engaged with the middle of the guide groove 28. A return pipe 34 is fixedly connected to the lower side of one side of the purification box 2. One end of the return pipe 34 is fixedly connected to one side of the middle of one end of the cleaning box 1. A water pump 22 is fixedly connected to one side of the upper end of the purification box 2.

[0026] The specific settings and functions of this embodiment are described below. By improving the cleaning method, the cleaning efficiency is increased. During use, the operator can place a large number of bearings into the storage frame 15, and then drive the storage frame 15 to immerse it in the cleaning solution in the cleaning tank 1 via the motor 12. The ultrasonic generator 16 generates ultrasonic waves to clean the bearings in batches. After cleaning, the cleaning solution will contain debris and grease. The cleaning solution in the cleaning tank 1 can be pumped into the purification tank 2 through the drain pipe 19 by the water pump 22. The cleaning solution entering the purification tank 2 will be filtered by the filter screen 23 to remove the debris and grease. After filtration, the clean cleaning solution returns to the cleaning tank 1 through the return pipe 34 for the next cleaning. Residual debris and grease remain on top of the purification tank 2. The operator can start the motor 29 to drive the turntable 30 to rotate. The eccentric rod 31 at the end of the turntable 30 will move the fixed plate 27 back and forth along the guide groove 28, thereby driving the connecting rod 26 and the filter screen 23 at the end to move back and forth. With the help of multiple springs 25 at one end of the filter screen 23, the filter screen 23 can be kept in motion, which can effectively prevent debris and grease from clogging the filter screen 23 and increase the filtration speed, making the device more practical.

[0027] Example 2, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, limiting grooves 32 are provided above and below one side of the moving trough 24. Limiting slide plates 33 are fixedly installed above and below the middle of one end of the filter screen 23. The limiting slide plates 33 abut against the two sides of the limiting grooves 32. A bracket 11 is fixedly installed at the upper end of the cleaning tank 1. A slide rod 14 is fixedly installed below one end of the bracket 11. A motor 12 is fixedly installed above the middle of the other end of the bracket 11. A lead screw 13 is fixedly installed at the output end of the motor 12. One end of the slide rod 14 is fixedly installed on one side of the cleaning tank 1, and one end of the lead screw 13 is rotatably connected to the other side of the cleaning tank 1. A storage frame 15 is slidably engaged in the middle of the washing tank 1. One end of the storage frame 15 is slidably engaged with the slide rod 14, and the other end of the storage frame 15 is threadedly connected to the lead rod 13. Multiple ultrasonic generators 16 are evenly fixedly installed at the bottom of the storage frame 15. Limiting plates 17 are fixedly installed at the four corners of the lower middle part of the washing tank 1. The bottom of the storage frame 15 abuts against the limiting plates 17. An injection pipe 18 is fixedly connected to the middle of the other end of the washing tank 1. A drain pipe 19 is fixedly connected to the other side of the middle of one end of the washing tank 1. One end of the drain pipe 19 is fixedly connected to the water pump 22.

[0028] The overall effect of this embodiment is that, during use, the operator can place a large number of bearings into the storage frame 15, and then drive the lead screw 13 to rotate via the motor 12, thereby driving the storage frame 15 to descend along the slide rod 14 into the cleaning solution in the cleaning tank 1. Limiting plates 17 are provided at the four corners of the middle of the cleaning tank 1 to limit the position of the storage frame 15, preventing excessive downward movement of the storage frame 15 and damage to the ultrasonic generator 16. Then, the ultrasonic generator 16 is activated to generate ultrasonic waves for batch cleaning of the bearings. After cleaning, the motor 12 drives the storage frame 15 upward to remove the bearings. The cleaning solution after cleaning will contain debris and grease. The operator can use the water pump 22 to pump the cleaning solution in the cleaning tank 1 into the purification tank 2 through the drain pipe 19. The cleaning solution entering the purification tank 2 will be filtered by the filter screen 23 to remove debris and grease. The clean cleaning solution will then return through the return pipe. 34. Return to the cleaning tank 1 for the next cleaning, thereby improving the utilization rate of the cleaning solution. Residual debris and grease will remain above the purification tank 2. The operator can start the motor 29 to drive the turntable 30 to rotate. The eccentric rod 31 at the end of the turntable 30 will drive the fixed plate 27 to move back and forth along the guide groove 28, thereby driving the connecting rod 26 and the end filter screen 23 to move back and forth. With the help of multiple springs 25 at one end of the filter screen 23, the filter screen 23 can be kept in motion, which can effectively prevent debris and grease from clogging the filter screen 23 and increase the filtration speed, making the device more versatile. The end of the filter screen 23 is provided with a limiting slide plate 33, which can abut against both ends of the limiting slide groove 32. When the filter screen 23 moves back and forth, it can limit the position of the filter screen 23, preventing the filter screen 23 from moving too much and causing the spring 25 to stretch too much and not be able to fully reset.

[0029] The operation and working principle of this device are as follows: During use, the operator can place a large quantity of bearings into the storage frame 15. Then, the motor 12 drives the lead screw 13 to rotate, causing the storage frame 15 to descend along the slide rod 14 into the cleaning solution in the cleaning tank 1. Subsequently, the ultrasonic generator 16 is activated to generate ultrasonic waves for batch cleaning of the bearings. After cleaning, the motor 12 drives the storage frame 15 upwards to remove the bearings. The cleaning solution after cleaning will contain debris and grease. The operator can use the water pump 22 to pump the cleaning solution from the cleaning tank 1 into the purification tank 2 through the drain pipe 19. The cleaning solution entering the purification tank 2 will be filtered by the filter screen 23. Debris and grease are filtered out. The clean cleaning solution returns to the cleaning tank 1 through the return pipe 34 for the next cleaning, thereby improving the utilization rate of the cleaning solution. Residual debris and grease will remain on top of the purification tank 2. The operator can start the motor 29 to drive the turntable 30 to rotate. The eccentric rod 31 at the end of the turntable 30 will drive the fixed plate 27 to move back and forth along the guide groove 28, thereby driving the connecting rod 26 and the filter screen 23 at the end to move back and forth. With the help of multiple springs 25 at one end of the filter screen 23, the filter screen 23 can be kept in motion, which can effectively prevent debris and grease from clogging the filter screen 23 and increase the filtration speed, making the device more practical.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pre-cleaning device for automatic grease injection of bearings, comprising a cleaning tank (1) and a purification tank (2), wherein the purification tank (2) is located on one side of the cleaning tank (1), and the cleaning tank (1) and the purification tank (2) are connected, characterized in that: The upper end of the purification box (2) is fixedly installed with a cover plate (21) by screws. A movable groove (24) is opened in the middle of the purification box (2). A filter screen (23) is slidably engaged in the middle of the movable groove (24). A plurality of springs (25) are evenly fixedly installed on one end of the filter screen (23). One end of the plurality of springs (25) is fixedly connected to one side of the movable groove (24). A connecting rod (26) is fixedly installed in the middle of the other end of the filter screen (23). The movable groove (24) passes through one side of the purification box (2) and is connected to the movable groove (24). A fixed rod is fixedly installed at one end of the connecting rod (26). Fixed plate (27), the middle of the fixed plate (27) is provided with guide groove (28), one end of the purification box (2) is fixedly installed with motor two (29), one end of the motor two (29) is fixedly installed with turntable (30), one side of the turntable (30) is fixedly installed with eccentric rod (31), the eccentric rod (31) is slidably engaged with the middle of guide groove (28), one side of the purification box (2) is connected and fixedly connected with return pipe (34), one end of the return pipe (34) is connected and fixedly connected to one side of the middle of one end of cleaning box (1), and one side of the upper end of purification box (2) is connected and fixedly connected with water pump (22).

2. The pre-cleaning equipment for automatic grease injection of bearings according to claim 1, characterized in that: Limiting grooves (32) are provided on the upper and lower sides of one side of the moving groove (24), and limiting slide plates (33) are fixedly installed on the upper and lower sides of the middle of one end of the filter screen (23). The limiting slide plates (33) abut against the two sides of the limiting grooves (32).

3. The pre-cleaning equipment for automatic grease injection of bearings according to claim 2, characterized in that: A bracket (11) is fixedly installed on the upper end of the cleaning tank (1). A slide rod (14) is fixedly installed below one end of the bracket (11). A motor (12) is fixedly installed above the middle of the other end of the bracket (11). A lead screw (13) is fixedly installed at the output end of the motor (12). One end of the slide rod (14) is fixedly installed on one side of the cleaning tank (1), and one end of the lead screw (13) is rotatably connected to the other side of the cleaning tank (1).

4. The pre-cleaning equipment for automatic grease injection of bearings according to claim 3, characterized in that: The cleaning box (1) has a storage frame (15) slidably engaged in the middle. One end of the storage frame (15) is slidably engaged with the slide rod (14), and the other end of the storage frame (15) is threadedly connected to the lead screw (13).

5. The pre-cleaning equipment for automatic grease injection of bearings according to claim 4, characterized in that: Multiple ultrasonic generators (16) are evenly fixedly installed at the bottom of the storage frame (15), and limit plates (17) are fixedly installed at the four corners of the lower middle part of the cleaning box (1). The bottom of the storage frame (15) abuts against the limit plates (17).

6. The pre-cleaning equipment for automatic grease injection of bearings according to claim 5, characterized in that: A liquid injection pipe (18) is fixedly connected to the middle of the other end of the cleaning tank (1), and a drain pipe (19) is fixedly connected to the other side of the middle of one end of the cleaning tank (1). One end of the drain pipe (19) is fixedly connected to the water pump (22).

Citation Information

Patent Citations

  • Pre-cleaning equipment for automatic grease injection of automobile bearing

    CN220879778U