Main reducer oil duct opening structure with filtering function

By introducing a multi-stage filtration and automatic pressure relief system into the oil passage structure of the main reducer, the problems of wear and excessive oil pressure caused by impurities in the lubricating oil are solved, achieving efficient purification and pressure control of the lubricating oil, and improving the stability and service life of the equipment.

CN223908751UActive Publication Date: 2026-02-13ZHENGZHOU HAN LIN MACHINERY MFG CO LTD
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Patent Information

Application Number
CN202520340071.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-13
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

When the main reducer is working, impurities in the lubricating oil will interfere with the lubrication effect, leading to wear and damage to the seals. Excessive oil pressure will cause leakage, affecting the stability and lifespan of the equipment.

Method used

A main reducer oil passage structure with filtration function was designed, including a filter cylinder, first and second filter screens, a strong magnet, an electric check valve, and an electric contact pressure gauge, to achieve multi-stage filtration and automatic pressure relief of lubricating oil, ensuring that the oil pressure is within the normal range.

Benefits of technology

It effectively removes impurities from lubricating oil, maintains lubrication, prevents damage to seals, ensures equipment operates within normal pressure range, and improves equipment stability and lifespan.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223908751U_ABST
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Abstract

The utility model discloses a main reducer oil duct opening structure with a filtering function, which relates to the technical field of automobiles and comprises a filter cartridge, a threaded column is in threaded connection with the inside of the upper end of the filter cartridge, a mounting plate is fixedly connected with the inside of the threaded column, and a second filter screen is fixedly connected with the middle of the bottom of the mounting plate. A first filter screen is fixedly connected to the bottom of the mounting plate and the outer side of the second filter screen, an oil outlet pipe is fixedly connected to the top of the mounting plate, a pressure relief pipe is fixedly connected to the right side of the oil outlet pipe, an electric one-way valve is fixedly mounted in the middle of the pressure relief pipe, and a connecting hose is fixedly connected to the tail end of the pressure relief pipe; the top of the oil inlet pipe is fixedly connected with a pipeline connector, and the tail end of the connecting hose is fixedly connected into the pipeline connector. The device has the advantages that by effectively removing impurities in oil, the good quality of lubricating oil can be maintained, continuous and reliable operation of equipment is ensured, and the reliability and stability of the equipment under various working conditions are enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, concretely relates to a main reducer oil channel mouth structure with filtering function. BACKGROUND

[0002] The main reducer assembly, commonly known as the reducer, its components: reducer shell, differential shell, cross axle, planetary gear, half axle gear, bearing seat, oil seal cover, conical rolling bearing, guide bearing, oil seal, adjusting pad, row side tooth gasket etc. The main reducer assembly is mainly used for increasing the input torque and reducing the speed accordingly. The main reducer assembly is a whole, mainly the speed change function, is the high speed becomes low speed, the differential is in the vehicle turning, keeps two wheels' speed diverge, keeps the vehicle balance normal driving.

[0003] The main reducer needs lubricating oil to make gear transmission more smooth when working, thereby reducing wear and tear and prolonging the service life of the main reducer. Once the lubricating oil contains impurities, the impurities will interfere with the normal flow of the lubricating oil, reduce its lubricating effect, thereby causing wear and tear of the gear and bearing. Moreover, if the oil pressure inside the main reducer is too high, the high oil pressure will exert excessive pressure on the sealing element, causing deformation, aging or rupture of the sealing element, thereby causing lubricating oil leakage. In view of the above problems, the present application provides a main reducer oil channel mouth structure with filtering function to solve the above problems. SUMMARY

[0004] To solve the above technical problems, a main reducer oil channel mouth structure with filtering function is provided to solve the above problems that the current main reducer needs lubricating oil to make gear transmission more smooth when working, thereby reducing wear and tear and prolonging the service life of the main reducer. Once the lubricating oil contains impurities, the impurities will interfere with the normal flow of the lubricating oil, reduce its lubricating effect, thereby causing wear and tear of the gear and bearing. Moreover, if the oil pressure inside the main reducer is too high, the high oil pressure will exert excessive pressure on the sealing element, causing deformation, aging or rupture of the sealing element, thereby causing lubricating oil leakage.

[0005] The utility model discloses a technical scheme that is adopted to achieve the above object, a main reducer oil channel mouth structure with filtering function, including filter drum, the filter drum upper end inside screw thread connection has the threaded post, the threaded post inside fixedly connected with the mounting panel, the mounting panel bottom middle position fixedly connected with second filter screen, the mounting panel bottom with second filter screen outside fixedly connected with first filter screen, the mounting panel top fixedly connected with the oil outlet pipe, the oil outlet pipe right side fixedly connected with the pressure relief pipe, the pressure relief pipe middle part fixed mounting has electric check valve, the pressure relief pipe terminal fixedly connected with the connecting hose, the filter drum right side fixedly connected with the oil inlet pipe, the oil inlet pipe top fixedly connected with the pipeline joint, the connecting hose terminal fixedly connected in the pipeline joint inside.

[0006] Preferably, the filter drum outside upper end fixedly connected with first fixed disc, the threaded post outside bottom fixedly connected with second fixed disc, first fixed disc and second fixed disc are fixedly connected through fixed bolt.

[0007] Preferably, the oil inlet pipe terminal fixedly connected with threaded pipe through flange, the oil outlet pipe top fixedly connected with connecting flange plate.

[0008] Preferably, the oil outlet pipe left side fixedly installed electric contact point pressure gauge, electric contact point pressure gauge is connected with electric check valve through electric wire.

[0009] Preferably, the filter drum bottom screw connection has oil seal cover, and the oil seal cover inside middle position fixedly connected with fixed plate, the fixed plate bottom fixedly connected with strong magnet.

[0010] Preferably, the first fixed disc and second fixed disc are provided with sealing strip between.

[0011] Preferably, the aperture of the first filter screen is larger than the aperture of the second filter screen.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a filter drum, first filter screen and second filter screen and strong magnet are set up, when lubricating oil flows into filter drum through oil inlet pipe, first filter screen is removed first to big particle impurity, then further removes tiny particle through second filter screen, and strong magnet in oil seal cover removes ferromagnetic impurity, can realize more efficient purification before oil liquid enters system, has optimized the design and operating effect of whole lubricating system, removes the impurity in oil through effective, can maintain the good quality of lubricating oil, ensures the continuous reliable operation of equipment, enhances the reliability and stability of equipment under various working conditions.

[0014] The utility model discloses an automatic pressure relief system for lubricating system, including filter cylinder, first fixed disc, threaded column, second fixed disc, sealing strip, first filter screen, second filter screen, oil outlet pipe, electric contact pressure gauge, pressure relief pipe, electric one-way valve, oil inlet pipe, pipeline joint, connecting hose, threaded pipe, oil seal cover, fixed plate, strong magnet, fixed bolt, connecting flange plate and mounting plate, first fixed disc is connected with filter cylinder, and threaded column is connected with second fixed disc, and sealing strip is connected with first fixed disc, and first filter screen is connected with first fixed disc, and second filter screen is connected with second fixed disc, and oil outlet pipe is connected with second fixed disc, and electric contact pressure gauge is connected with oil outlet pipe, and pressure relief pipe is connected with oil outlet pipe, and electric one-way valve is connected with pressure relief pipe, and oil inlet pipe is connected with pressure relief pipe, and pipeline joint is connected with oil inlet pipe, and connecting hose is connected with oil inlet pipe, and threaded pipe is connected with oil inlet pipe, and oil seal cover is connected with oil inlet pipe, and fixed plate is connected with oil inlet pipe, and strong magnet is connected with fixed plate, and fixed bolt is connected with fixed plate, and connecting flange plate is connected with oil inlet pipe, and mounting plate is connected with oil inlet pipe, through the working pressure monitored through electric contact pressure gauge, when the pressure is too big, electric one-way valve opens, and the lubricating oil of too big pressure returns to the oil inlet pipe through pressure relief block and connecting hose and carries out pressure relief to ensure its operation in normal working range, and the automatic pressure relief system can adjust pressure in real time, ensures lubricating system operation in normal working range, improves the stability and reliability of system, reduces the frequency and cost of maintenance and repair. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is structure schematic view of the utility model;

[0016] Figure 2 It is structure schematic view of another visual angle of the utility model;

[0017] Figure 3 It is plan view of the utility model;

[0018] Figure 4 It is Figure 3 Sectional view of A-A in it;

[0019] Figure 5 It is Figure 4 Local enlarged view of A in it;

[0020] Figure 6 It is Figure 4 Local enlarged view of B in it.

[0021] Marked number in the drawing is:

[0022] 1, filter cylinder;2, first fixed disc;3, threaded column;4, second fixed disc;5, sealing strip;6, first filter screen;7, second filter screen;8, oil outlet pipe;9, electric contact pressure gauge;10, pressure relief pipe;11, electric one-way valve;12, oil inlet pipe;13, pipeline joint;14, connecting hose;15, threaded pipe;16, oil seal cover;17, fixed plate;18, strong magnet;19, fixed bolt;20, connecting flange plate;21, mounting plate. DETAILED DESCRIPTION

[0023] The following description is used to disclose the utility model to enable those skilled in the art to realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be conceived by those skilled in the art.

[0024] Refer to Figures 1-6As shown, a main reducer oil passage port structure with filtering function, including filter cartridge 1, the upper end of filter cartridge 1 is internally threaded connected with threaded column 3, threaded column 3 is internally fixedly connected with mounting plate 21, second filter screen 7 is fixedly connected at the middle position of the bottom of mounting plate 21, first filter screen 6 is fixedly connected with the outside of the bottom of mounting plate 21 and second filter screen 7, oil outlet pipe 8 is fixedly connected at the top of mounting plate 21, pressure relief pipe 10 is fixedly connected at the right side of oil outlet pipe 8, electric one-way valve 11 is fixedly installed at the middle of pressure relief pipe 10, connecting hose 14 is fixedly connected at the end of pressure relief pipe 10, oil inlet pipe 12 is fixedly connected at the right side of filter cartridge 1, pipeline joint 13 is fixedly connected at the top of oil inlet pipe 12, connecting hose 14 is fixedly connected inside pipeline joint 13, when the lubricating oil pressure in the system abnormally rises, electric contact pressure gauge 9 can timely sense and trigger electric one-way valve 11 to open, so that the lubricating oil with too high pressure flows back to oil inlet pipe 12 through pressure relief pipe 10 and connecting hose 14, automatic pressure relief is realized, equipment damage or safety accidents caused by too high pressure are prevented, and the stability and safety of the system are improved.

[0025] Specifically, first fixed disc 2 is fixedly connected at the upper end of the outside of filter cartridge 1, second fixed disc 4 is fixedly connected at the bottom of the outside of threaded column 3, first fixed disc 2 and second fixed disc 4 are fixedly connected through fixed bolts 19.

[0026] Specifically, threaded pipe 15 is fixedly connected at the end of oil inlet pipe 12 through flange, connecting flange plate 20 is fixedly connected at the top of oil outlet pipe 8, which is convenient for installation and disassembly and improves the convenience of maintenance. At the same time, the standardized connection design also ensures the compatibility and interchangeability with other components, reduces the maintenance cost and time.

[0027] Specifically, electric contact pressure gauge 9 is fixedly installed at the left side of oil outlet pipe 8, electric contact pressure gauge 9 is connected with electric one-way valve 11 through electric wire, electric contact pressure gauge 9 monitors the pressure of lubricating oil in the system in real time, through accurate pressure reading, not only the operating personnel can master the system running state, but also signals can be sent in time under abnormal conditions to trigger corresponding protection measures (such as opening electric one-way valve 11), which improves the intelligent level and response speed of the system.

[0028] Specifically, oil seal cover 16 is threadedly connected at the bottom of filter cartridge 1, fixed plate 17 is fixedly connected at the middle position inside oil seal cover 16, strong magnet 18 is fixedly connected at the bottom of fixed plate 17, the design of oil seal cover 16 not only helps sealing and prevents oil leakage, but also the built-in strong magnet 18 can effectively adsorb and remove ferromagnetic impurities such as metal chips in lubricating oil, further improves the cleanliness of oil, reduces the risk of equipment failure caused by impurities abrasion, and also can open to facilitate flushing of the internal filter screen.

[0029] Specifically, the sealing strip 5 is arranged between the first fixed disc 2 and the second fixed disc 4, the sealing strip 5 enhances the sealing performance of the connection, effectively prevents the leakage of lubricating oil under high pressure, and maintains the purity and pressure stability of the oil in the system.

[0030] Specifically, the first filter screen 6 has a larger pore size than the second filter screen 7, and the double-layer filter screen design with different pore sizes can more effectively remove impurities in the lubricating oil. The large-pore design of the first filter screen 6 can quickly remove large-particle impurities, preventing them from clogging the subsequent finer filter layer, while the small-pore design of the second filter screen 7 can further remove small particles, ensuring that the oil cleanliness meets higher standards and prolonging the service life of the reducer.

[0031] Working principle: In use, first connect the oil outlet pipe 8 with the main reducer, and connect the threaded pipe 15 with the lubricating oil tank. When the lubricating oil flows into the filter cartridge 1 through the oil inlet pipe 12, it first removes large-particle impurities through the first filter screen 6, and then removes small-particle impurities through the second filter screen 7. The strong magnet 18 in the oil seal cover 16 removes ferromagnetic impurities. The filtered lubricating oil passes through the oil outlet pipe 8 into the reducer, lubricating and cooling various parts. At the same time, the working pressure after filtering is monitored through the electric contact pressure gauge 9. When the pressure is too high, the electric one-way valve 11 opens, and the lubricating oil with excessive pressure flows back to the oil inlet pipe 12 through the pressure relief pipe 10 and the connecting hose 14 to relieve pressure, ensuring that it operates within the normal working range.

[0032] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A main reduction gear oil passage port structure having a filtering function, characterized by: The utility model provides a filter cartridge (1), the filter cartridge (1) upper end inside screw thread connection has threaded column (3), threaded column (3) inside fixedly connected with mounting plate (21), mounting plate (21) bottom middle position fixedly connected with second filter screen (7), mounting plate (21) bottom with second filter screen (7) outside fixedly connected with first filter screen (6), mounting plate (21) top fixedly connected with oil outlet pipe (8), oil outlet pipe (8) right side fixedly connected with pressure relief pipe (10), pressure relief pipe (10) middle part fixedly installed with electric one-way valve (11), pressure relief pipe (10) terminal fixedly connected with connecting hose (14), filter cartridge (1) right side fixedly connected with oil inlet pipe (12), oil inlet pipe (12) top fixedly connected with pipeline joint (13), connecting hose (14) terminal fixedly connected in the pipeline joint (13) inside.

2. The main reducer oil passage port structure with a filtering function according to claim 1, characterized in that: The filter cartridge (1) is fixedly connected with the first fixed disc (2) on the outer side of the upper end, the threaded column (3) is fixedly connected with the second fixed disc (4) on the outer side of the bottom, and the first fixed disc (2) and the second fixed disc (4) are fixedly connected through the fixed bolt (19).

3. The main reducer oil passage port structure with a filtering function according to claim 1, characterized in that: The threaded pipe (15) is fixedly connected to the end of the oil inlet pipe (12) through the flange, and the connecting flange plate (20) is fixedly connected to the top of the oil outlet pipe (8).

4. The main reducer oil passage port structure with a filtering function according to claim 1, characterized in that: The electric contact pressure gauge (9) is fixedly installed on the left side of the oil outlet pipe (8), and the electric contact pressure gauge (9) is connected with the electric one-way valve (11) through the electric wire.

5. The main reducer oil passage port structure with a filtering function according to claim 1, characterized in that: The oil seal cover (16) is screwedly connected to the bottom of the filter cartridge (1), the fixed plate (17) is fixedly connected to the middle position in the oil seal cover (16), and the strong magnet (18) is fixedly connected to the bottom of the fixed plate (17).

6. The main reducer oil passage port structure with a filtering function according to claim 2, characterized in that: The sealing strip (5) is arranged between the first fixed disc (2) and the second fixed disc (4).

7. The main reducer oil passage port structure with a filtering function according to claim 1, characterized in that: The aperture of the first filter screen (6) is larger than that of the second filter screen (7).