Movable precision lubricating oil filtering vehicle for gear box

By designing a mobile precision lubricating oil filtration cart for gearboxes, a multi-stage filtration system was adopted to solve the problem of fine particulate matter contamination in lubricating oil, thus achieving efficient reuse of lubricating oil.

CN223788142UActive Publication Date: 2026-01-13ZHONGLU RAIL EQUIP (MAANSHAN) CO LTD
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Patent Information

Application Number
CN202423035681.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2026-01-13
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

Existing gearbox lubricating oils are contaminated by fine particulate matter during use, which cannot be effectively removed by filtration equipment, limiting the recycling of lubricating oils and failing to meet environmental protection and reuse requirements.

Method used

A mobile precision lubricating oil filtration cart for gearboxes was designed, comprising a cart body, an oil tank frame, a fine filter assembly, and an oil pump motor. It achieves preliminary and fine filtration of lubricating oil through a multi-stage filtration system, with a filtration accuracy of 5μm, reaching NAS6-7 level.

Benefits of technology

It achieves efficient multi-stage filtration of lubricating oil, removes fine particulate matter, improves the reuse effect of lubricating oil, and meets environmental protection and reuse requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a movable precision lubricating oil filtering vehicle for a gear box, and relates to the technical field of gear box maintenance. The oil tank trolley comprises a trolley main body and an oil tank frame, a timer switch and an oil pressure gauge are sequentially embedded in the trolley main body and close to the side of a handle, a refined filtration assembly is embedded in the other side of the trolley main body, and a bolt is arranged between the refined filtration assembly and the trolley main body so that the refined filtration assembly can be installed on the trolley main body. And a pressure controller is fixedly mounted on the inner wall of the trolley main body. According to the utility model, after the required operation time is set through the timer switch, the start button is pressed down, dirty oil in the lower oil tank enters the rough filtration assembly through the oil pump motor, the lubricating oil is roughly filtered, then the roughly filtered lubricating oil is guided into the fine filtration assembly through the oil pump motor, and the lubricating oil is finely filtered through the fine filtration assembly; the filtering effect of the fine filtering assembly reaches 5 microns, the filtering precision can reach NAS6-7 level, and filtered lubricating oil can flow into the upper oil groove.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox maintenance technology, specifically to a mobile precision lubricating oil filter cart for gearboxes. Background Technology

[0002] Regularly changing the lubricating oil is crucial for maintaining efficient operation and extending the service life of gearboxes. However, lubricating oil can become contaminated by tiny particles generated during wear, affecting its performance and potentially accelerating wear on machinery. Therefore, recycling lubricating oil is an effective way to reduce operating costs and protect the environment.

[0003] After a traditional gearbox running-in test, the use of lubricating oil is often limited to one time. Even with simple filtration, the lack of effective fine particulate matter filtration equipment results in serious pollution problems after filtration, with significant blackening, which fails to meet the requirements of environmental protection and reuse.

[0004] Currently available filtration equipment can only filter larger particles of impurities and cannot effectively remove tiny particles from lubricating oil, which greatly limits the recycling of lubricating oil.

[0005] To address this, a portable precision lubricating oil filter cart for gearboxes is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a movable precision lubricating oil filter cart for gearboxes in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A portable precision lubricating oil filtration cart for gearboxes includes a cart body and an oil tank frame. A timer switch and an oil pressure gauge are sequentially embedded on the cart body near the handle. A fine filter assembly is embedded on the other side of the cart body. Bolts are used to connect the fine filter assembly to the cart body to secure it. A pressure controller is fixedly installed on the inner wall of the cart body. An oil pump motor is located on the bottom surface inside the cart body. The oil pump motor is connected to a second pipeline and is connected to the pressure controller and the coarse filter assembly through a first pipeline and a second pipeline, respectively. An upper oil tank and a lower oil tank are respectively provided on the oil tank frame. A filter screen is provided on the inner wall of the upper oil tank. The upper oil tank is connected to the coarse filter assembly through a pipeline, and the fine filter assembly is connected to the upper oil tank through a pipeline.

[0009] Furthermore, the coarse filter assembly is connected to the fine filter assembly and the oil pressure gauge via oil pipes.

[0010] Furthermore, the bottom surface of the trolley body is provided with at least four sets of first casters.

[0011] Furthermore, the top of the upper oil tank is provided with a first oil tank cover, and the side of the upper oil tank and the upper side are provided with a first connector and a first elbow. The first connector is connected to the fine filter assembly through a pipe.

[0012] Furthermore, a first level gauge and a valve are respectively installed on both sides of the upper oil tank and located below it, and the outer end of the valve has a second elbow.

[0013] Furthermore, a second oil tank cover is provided on the top of the lower oil tank, and a second level gauge and a second connector are respectively provided on both sides and below the lower oil tank. A valve filter is installed inside the second connector, and the second connector is connected to the oil pump motor through a pipe.

[0014] Furthermore, a second caster is provided below the lower oil tank and at the four corners, and a plug is provided at the bottom of the lower oil tank and in the middle.

[0015] The beneficial effects of this utility model are as follows:

[0016] The upper oil tank is connected to the coarse filter assembly via a pipe, and the fine filter assembly is connected to the upper oil tank via a pipe. Dirty oil is poured into the lower oil tank and initially filtered through the filter screen inside the lower oil tank. The dirty oil is then stored in the lower oil tank. After connecting the power supply and setting the required running time via the timer switch, the start button is pressed. The oil pump motor drives the dirty oil in the lower oil tank into the coarse filter assembly for coarse filtration of the lubricating oil. Subsequently, the oil pump motor guides the coarsely filtered lubricating oil into the fine filter assembly for fine filtration of the lubricating oil. The filtration effect of the fine filter assembly reaches 5μm, and the filtration accuracy can reach NAS6-7 level. The filtered lubricating oil flows into the upper oil tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the vehicle of this utility model;

[0018] Figure 2 This is a schematic diagram of the upper and lower oil tanks of this utility model;

[0019] Figure 3 This is another schematic diagram of the main body of the vehicle of this utility model;

[0020] Figure 4 This is a cross-sectional view of the upper and lower oil tanks of this utility model;

[0021] Figure 5 This is a schematic diagram of the process for lubricating oil filtration according to this utility model;

[0022] Reference numerals: 1. Cart body; 2. Timer switch; 3. Oil pressure gauge; 4. Fine filter assembly; 5. Pressure controller; 6. First pipeline; 7. Coarse filter assembly; 8. Second pipeline; 9. Oil pump motor; 10. First caster; 11. Bolt; 12. Upper oil tank; 13. First oil tank cover; 14. First connector; 15. First elbow; 16. First level gauge; 17. Valve; 18. Second elbow; 19. Oil tank frame; 20. Lower oil tank; 21. Second oil tank cover; 22. Second connector; 23. Valve filter; 24. Second caster; 25. Plug; 26. Second level gauge; 27. Filter screen. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1 to 5As shown, a movable precision lubricating oil filtration cart for gearboxes includes a trolley body 1 and an oil tank frame 19. A timer switch 2 and an oil pressure gauge 3 are sequentially embedded on the trolley body 1 near the handle. A fine filter assembly 4 is embedded on the other side of the trolley body 1. A bolt 11 is provided between the fine filter assembly 4 and the trolley body 1 to install the fine filter assembly 4 on the trolley body 1. A pressure controller 5 is fixedly installed on the inner wall of the trolley body 1. An oil pump motor 9 is provided on the bottom surface inside the trolley body 1. The oil pump motor 9 is connected to a second pipeline 8, and the oil pump motor 9 is connected to the pressure controller 5 and the coarse filter assembly 7 through the first pipeline 6 and the second pipeline 8, respectively. An upper oil tank 12 and a lower oil tank 20 are respectively provided on the oil tank frame 19. A filter screen 27 is provided on the inner wall of the upper oil tank 12. The upper oil tank 12 is connected to the coarse filter assembly 7 through a pipeline, and the fine filter assembly 4 is connected to the upper oil tank 12 through a pipeline. More specifically, the upper oil tank 12 is connected to the coarse filter assembly 7 via a pipe, and the fine filter assembly 4 is connected to the upper oil tank 12 via a pipe. Dirty oil is poured into the lower oil tank 20 and initially filtered by the filter screen 27 in the lower oil tank 20, allowing the dirty oil to be stored in the lower oil tank 20. After connecting the power supply and setting the required running time via the timer switch 2, the start button is pressed. The oil pump motor 9 causes the dirty oil in the lower oil tank 20 to enter the coarse filter assembly 7 for coarse filtration of the lubricating oil. Then, the oil pump motor 9 introduces the coarsely filtered lubricating oil into the fine filter assembly 4, where the lubricating oil is finely filtered. The filtration effect of the fine filter assembly 4 reaches 5μm, and the filtration accuracy can reach NAS6-7 level. The filtered lubricating oil flows into the upper oil tank 12.

[0028] The coarse filter assembly 7 is connected to the fine filter assembly 4 and the oil pressure gauge 3 via an oil pipe. More specifically, the oil pressure gauge 3 enables the monitoring of the pressure of the flowing lubricating oil.

[0029] The bottom surface of the trolley body 1 is provided with at least four sets of first casters 10. More specifically, the at least four first casters 10 on the bottom surface of the trolley body 1 facilitate the movement of the trolley body 1.

[0030] The upper oil tank 12 is provided with a first oil tank cover 13 at the top. The upper oil tank 12 is provided with a first connector 14 and a first elbow 15 on the side and at the top. The first connector 14 is connected to the fine filter assembly 4 through a pipe. More specifically, the first connector 14 is connected to the fine filter assembly 4 through the pipe, and the upper oil tank 12 is used to store the filtered lubricating oil.

[0031] A first level gauge 16 and a valve 17 are respectively installed on both sides and at the bottom of the upper oil tank 12. The outer end of the valve 17 has a second elbow 18. More specifically, when lubricating oil is needed, the valve 17 is opened and the filtered lubricating oil is discharged through the second elbow 18. The lubricating oil level in the upper oil tank 12 can be monitored by the first level gauge 16 on the side wall of the upper oil tank 12.

[0032] The lower oil tank 20 is equipped with a second oil tank cover 21 at the top. A second level gauge 26 and a second connector 22 are respectively located on both sides and below the lower oil tank 20. A valve filter 23 is installed inside the second connector 22. The second connector 22 is connected to the oil pump motor 9 via a pipe. More specifically, the valve filter 23 prevents clogging of the second connector 22. The end of the second connector 22 is connected to a pipe to connect to the coarse filter assembly 7. The level of dirty oil in the lower oil tank 20 can be observed through the second level gauge 26 on the side of the lower oil tank 20.

[0033] The lower oil tank 20 is equipped with second casters 24 at its four corners, and a plug 25 is located at the bottom center of the lower oil tank 20. More specifically, the four sets of second casters 24 on the bottom surface of the lower oil tank 20 facilitate the movement of the lower oil tank 20.

[0034] In summary: The upper oil tank 12 is connected to the coarse filter assembly 7 via a pipe, and the fine filter assembly 4 is connected to the upper oil tank 12 via a pipe. Dirty oil is poured into the lower oil tank 20 and initially filtered by the filter screen 27 in the lower oil tank 20. The dirty oil is then stored in the lower oil tank 20. After connecting the power supply and setting the required running time via the timer switch 2, the start button is pressed. The oil pump motor 9 drives the dirty oil in the lower oil tank 20 into the coarse filter assembly 7 for coarse filtration of the lubricating oil. Subsequently, the oil pump motor 9 guides the coarsely filtered lubricating oil into the fine filter assembly 4, where the lubricating oil undergoes fine filtration. The filtration effect of the fine filter assembly 4 reaches 5μm, and the filtration accuracy can reach NAS6-7 level. The filtered lubricating oil flows back into the upper oil tank 12.

[0035] 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 principles of this 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. A portable precision lubricating oil filter cart for gearboxes, characterized in that, The device includes a trolley body (1) and an oil tank frame (19). A timer switch (2) and an oil pressure gauge (3) are sequentially embedded on the trolley body (1) near the handle. A fine filter assembly (4) is embedded on the other side of the trolley body (1). A bolt (11) is provided between the fine filter assembly (4) and the trolley body (1) to install the fine filter assembly (4) on the trolley body (1). A pressure controller (5) is fixedly installed on the inner wall of the trolley body (1). An oil pump motor is provided on the bottom surface inside the trolley body (1). (9) The oil pump motor (9) is connected to the second pipeline (8), and the oil pump motor (9) is connected to the pressure controller (5) and the coarse filter assembly (7) through the first pipeline (6) and the second pipeline (8) respectively. The oil tank frame (19) is provided with an upper oil tank (12) and a lower oil tank (20), and the inner wall of the upper oil tank (12) is provided with a filter screen (27). The upper oil tank (12) is connected to the coarse filter assembly (7) through a pipeline, and the fine filter assembly (4) is connected to the upper oil tank (12) through a pipeline.

2. The portable precision lubricating oil filter cart for gearboxes according to claim 1, characterized in that, The coarse filter assembly (7) is connected to the fine filter assembly (4) and the oil pressure gauge (3) via an oil pipe.

3. The portable precision lubricating oil filter cart for gearboxes according to claim 1, characterized in that, The bottom surface of the trolley body (1) is provided with at least four sets of first casters (10).

4. The portable precision lubricating oil filter cart for gearboxes according to claim 1, characterized in that, The top of the upper oil tank (12) is provided with a first oil tank cover (13), and the side of the upper oil tank (12) and the upper inner and outer sides are provided with a first connector (14) and a first elbow (15). The first connector (14) is connected to the fine filter assembly (4) through a pipe.

5. A movable precision lubricating oil filter cart for gearboxes according to claim 4, characterized in that, The upper oil tank (12) is equipped with a first level gauge (16) and a valve (17) on both sides and at the bottom, and the outer end of the valve (17) has a second elbow (18).

6. A movable precision lubricating oil filter cart for gearboxes according to claim 1, characterized in that, The top of the lower oil tank (20) is provided with a second oil tank cover (21). The lower oil tank (20) is provided with a second level gauge (26) and a second connector (22) on both sides and below. A valve filter (23) is installed inside the second connector (22). The second connector (22) is connected to the oil pump motor (9) through a pipe.

7. A movable precision lubricating oil filter cart for gearboxes according to claim 6, characterized in that, The lower oil tank (20) is provided with a second caster (24) at the four corners and a plug (25) at the bottom and middle of the lower oil tank (20).