A vehicle transmission with oil self-filtering function

By designing a baffle mechanism and magnetic plates in the automotive transmission to adsorb impurities, and using inertial force to clean the filter element, the problem of wear and blockage caused by impurities in the oil is solved, achieving efficient cleaning and long service life of the transmission.

CN122148740APending Publication Date: 2026-06-05SHANDONG HUASHOU TRANSMISSION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG HUASHOU TRANSMISSION TECH CO LTD
Filing Date
2026-04-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing vehicle transmissions, metal shavings and other impurities can mix into the lubricating and cooling oil during long-term use, leading to component wear, blockage of oil passages, and affecting transmission efficiency and service life.

Method used

Design a vehicle transmission with oil self-filtration function. The oil flow rate is buffered by a baffle mechanism, and impurities are adsorbed by gravity and magnetic plates. The high-frequency vibration caused by inertial force cleans the filter element, prevents impurities from clogging the filter element, and extends the filter element life.

Benefits of technology

It effectively removes impurities from the oil, keeps the transmission clean, extends the service life of the filter element, and improves transmission efficiency and overall lifespan.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122148740A_ABST
    Figure CN122148740A_ABST
Patent Text Reader

Abstract

The application relates to the field of gearboxes, and discloses a vehicle gearbox with an oil self-filtering function, which comprises a gearbox shell and a bottom shell arranged below the gearbox shell, wherein the bottom shell and the gearbox shell are internally provided with an upper filter shell mechanism and a filtering mechanism, the upper filter shell mechanism is provided below with a partition plate mechanism, the filtering mechanism comprises a lower filter shell assembly, the lower filter shell assembly is provided above with a connecting assembly, and the connecting assembly is provided with filtering assemblies on the two sides respectively. Through the oil flowing through the inclined baffle plate on the connecting assembly, the oil is guided to the rotating baffle plates on the two sides, most impurities are blocked by the arc-shaped baffle plate from entering the oil leakage hole, the heavy metal scraps slide along the inclined surface of the rotating baffle plate to the low-position areas on the two sides of the lower filter shell, are adsorbed by the powerful magnet pieces, and the iron scraps and other impurities are concentrated in the dirt-containing areas, so that the impurities are prevented from circulating with the oil again, the removal efficiency of the impurities is improved, the service life and the maintenance period of the filter core are prolonged, the gearbox oil is kept clean for a long time, and the overall service life of the gearbox is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of transmission technology, specifically to a vehicle transmission with a self-filtering function for oil. Background Technology

[0002] Patent application CN221195991U includes a housing. A first power output shaft is located on one side of the housing's interior, and a second power output shaft is located on one side of the first power output shaft. A synchronizer is located on the outer wall of the second power output shaft, and a shift fork is mounted on the top of the synchronizer. A cooling fan is mounted on one side of the housing, and heat dissipation holes are mounted on the other side of the housing. A dust filter is mounted on one side of the heat dissipation holes. By incorporating the cooling fan, dust filter, and heat dissipation holes, the gearbox generates heat during operation. The cooling fan, when activated, dissipates this heat through the heat dissipation holes on one side of the housing, preventing excessive heat buildup inside the housing. This achieves good heat dissipation for the gearbox, providing some protection and extending its service life.

[0003] In the aforementioned patent, in some existing vehicle transmissions, the lubricating and cooling oil will mix with metal debris and other impurities generated by gear meshing and component wear during long-term use. If these impurities cannot be separated from the oil in a timely and effective manner, they will enter the precision mating surfaces of bearings, gears and other components with the oil circulation, aggravating component wear and even clogging the oil passages, seriously affecting the transmission efficiency, smoothness of operation and overall service life of the transmission. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive transmission with an oil self-filtration function to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a vehicle transmission with oil self-filtration function, including a transmission housing and a bottom shell disposed below the transmission housing, an upper filter housing mechanism and a filtering mechanism are disposed inside the bottom shell and the transmission housing, a partition mechanism is disposed below the upper filter housing mechanism, synthetic fibers are disposed inside the filtering mechanism, the filtering mechanism includes a lower filter housing assembly, a connecting assembly is disposed above the lower filter housing assembly, and filtering assemblies are disposed on both sides of the connecting assembly; The filter assembly includes a rotating baffle, with a connecting rod fixedly connected to one end of the rotating baffle facing the connecting assembly. The rotating baffle has multiple oil leakage holes and multiple arc-shaped baffles fixedly connected to it, with the positions of the arc-shaped baffles corresponding to the oil leakage holes. A sliding groove is formed below the lower end of the rotating baffle, and a sliding rod is slidably connected in the sliding groove. Three connecting vertical plates are fixedly arranged below the higher end of the rotating baffle, and multiple second triangular blocks are arranged on one side of the three connecting vertical plates.

[0006] Preferably, the connecting assembly includes a connecting post, with inclined baffles fixedly connected to both sides of the connecting post, two rotating baffles rotatably connected to both sides of the connecting post, and limit sliders fixedly connected to both ends of the connecting post.

[0007] Preferably, the lower filter housing assembly includes a lower filter housing, with the two rotating baffles slidably connected to the inner wall of the lower filter housing on both sides. Limiting grooves corresponding to the limiting sliders are provided on both sides of the lower filter housing. Two fixed baffles are fixedly connected to the lower interior of the lower filter housing. Connecting posts are fixedly provided on both sides of the upper end of the fixed baffles. The two connecting posts at the upper end of the fixed baffles are rotatably connected to the sliding rod. A through cavity is provided on the fixed baffles, and a woven fabric is fixedly connected within the through cavity. Multiple fixed vertical plates corresponding to the connecting vertical plates are fixedly connected to the lower interior of the lower filter housing. Multiple first triangular blocks corresponding to the second triangular blocks are fixedly connected to the side of the fixed vertical plates facing the connecting vertical plates. A fixed base is fixedly connected to the lower interior of the lower filter housing, located below the connecting posts. A spring is provided between the fixed base and the connecting posts.

[0008] Preferably, magnetic sheets are fixedly connected to both sides of the inner wall of the lower filter shell and the two fixed baffles, and the synthetic fiber is disposed between the two fixed baffles. The synthetic fiber has through grooves corresponding to the fixed vertical plate and the fixed base.

[0009] Preferably, the lower end of the spring is fixedly connected to the upper end of the fixed base, and the upper end of the spring is fixedly connected to the lower part of the connecting column.

[0010] Preferably, a through hole is provided at the bottom of the lower filter shell.

[0011] Preferably, the upper filter housing mechanism includes an upper filter housing disposed above the lower filter housing, and the upper filter housing has a liquid inlet hole.

[0012] Preferably, the baffle mechanism includes a baffle assembly disposed inside the lower part of the upper filter housing, and an mounting assembly is disposed above the baffle assembly.

[0013] Preferably, the partition assembly includes a partition fixedly connected to the lower part of the upper filter shell. The partition has a connecting hole, and a connecting frame is fixedly connected to the upper end of the partition. The connecting frame corresponds to the position of the connecting hole. A groove is formed on the connecting frame. A fixed bent rod is fixedly connected to the inner wall side of the groove on the connecting frame. A rotating wheel is rotatably connected to the fixed bent rod. The rotating wheel corresponds to the groove. Multiple oil leakage grooves are formed on the partition, and the oil leakage grooves are located near the connecting frame.

[0014] Preferably, the mounting assembly includes a fixed shell fixedly connected to the top of the partition. The fixed shell has a sliding cavity on the side facing the connecting hole. A sliding plate is slidably connected inside the fixed shell. Multiple movable cavities are respectively opened on both sides of the sliding plate. Movable balls are movably disposed in the movable cavities. A first connecting rope is fixedly connected to one side of the sliding plate. A sliding column is fixedly connected to the other end of the first connecting rope. The sliding column is slidably disposed in the sliding cavity. A second connecting rope is fixedly connected to the other end of the sliding column. The second connecting rope corresponds to the groove and the rotating wheel. The other end of the second connecting rope is fixedly connected above the connecting column.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) This application uses a baffle mechanism to buffer and disperse the oil, avoiding direct impact of high-speed oil on the filter assembly below, and making the oil distribution uniform. The oil flows through the inclined baffle on the connecting assembly and is guided to the rotating baffle on both sides. The multiple oil leakage holes on the rotating baffle and the arc baffle form the first barrier. The arc baffle uses its shape to guide the oil flow and effectively blocks most large particles of impurities from directly entering the oil leakage holes. Under the action of gravity, heavier metal debris will slide down the inclined surface of the rotating baffle to the low area on both sides of the lower filter housing and be attracted by strong magnets, concentrating iron filings and other debris in the dirt-holding area and preventing them from circulating with the oil again. After removing the iron filings, the oil passes through the textile on the fixed baffle and the synthetic fiber layer between the two fixed baffles to filter the oil, improving the removal efficiency of impurities and extending the service life and maintenance cycle of the filter element, so that the transmission oil is kept clean for a long time and the overall life of the transmission is extended. (2) This application utilizes the inertial force generated during vehicle operation. The sliding plate will be displaced in the sliding cavity due to inertia. The sliding plate pulls the sliding column through the first connecting rope, which in turn pulls the second connecting rope. After the second connecting rope passes around the rotating wheel, it transmits the pulling force to the top of the connecting column, overcoming the tension of the spring and pulling the connecting column upward. The upward movement of the connecting column causes the inclined baffle and the rotating baffle to move together. During the process of the rotating baffle being pulled up, the multiple second triangular blocks set on it will contact, squeeze and slip with the first triangular block on the fixed vertical plate, generating high-frequency micro-amplitude vibration. This vibration is quickly transmitted to the entire rotating baffle, the edge of the oil leak hole and the surface of the arc baffle through the connecting vertical plate, shaking off the debris and impurities attached to these components, preventing the oil leak hole from being blocked and ensuring that the passage is unobstructed. When the vehicle resumes stable driving and the inertial force disappears, the spring pulls the connecting column back to its original position. During the reset process, the second triangular block collides with the first triangular block again, generating secondary cleaning vibration, enhancing the cleaning effect, and alleviating the problem of decreased filtration efficiency and increased pressure difference caused by the accumulation of impurities in the filter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall disassembled structure of the present invention; Figure 3 This is a schematic diagram of the upper filter housing mechanism and the filtration mechanism of the present invention; Figure 4 This is a schematic diagram of the upper filter housing mechanism of the present invention; Figure 5 This is a schematic diagram of the filter mechanism and baffle mechanism of the present invention; Figure 6 This is a schematic diagram of the partition mechanism of the present invention; Figure 7 This is a schematic diagram of the partition assembly structure of the present invention; Figure 8 This is a schematic diagram of the installation component structure of the present invention; Figure 9 This is a schematic diagram of the filter mechanism structure of the present invention; Figure 10 This is a schematic diagram of the connection component and the filter component of the present invention; Figure 11 This is a schematic diagram of the connection component structure of the present invention; Figure 12 This is a schematic diagram of the filter component structure of the present invention; Figure 13 This is a schematic diagram of the flipping structure of the filter component of the present invention; Figure 14 This is a schematic diagram of the lower filter housing assembly structure of the present invention.

[0017] In the diagram: 1. Gearbox housing; 2. Bottom housing; 3. Upper filter housing mechanism; 31. Upper filter housing; 311. Liquid inlet; 4. Filtration mechanism; 41. Lower filter housing assembly; 411. Lower filter housing; 412. Limiting slide groove; 413. Fixed baffle; 414. Textile fabric; 415. Fixed vertical plate; 416. First triangular block; 417. Fixed base; 418. Spring; 419. Magnet; 42. Connecting assembly; 421. Connecting column; 422. Inclined baffle; 423. Limiting slider; 43. Filtration assembly; 431. Rotating baffle; 432. Connecting rotating rod; 433. Oil leakage hole; 434. Arc-shaped baffle; 435. Connecting vertical plate; 436. Second triangular block; 437. Sliding long groove; 438. Sliding long rod; 5. Partition mechanism; 51. Partition assembly; 511. Partition; 512. Connecting hole; 513. Connecting frame; 514. Groove; 515. Fixed bent rod; 516. Rotating wheel; 517. Oil leakage groove; 52. Mounting assembly; 521. Fixed shell; 522. Sliding cavity; 523. Sliding plate; 524. Movable cavity; 525. Movable ball; 526. First connecting rope; 527. Sliding column; 528. Second connecting rope; 6. Synthetic fiber. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0020] like Figures 1 to 14As shown, the present invention provides a vehicle transmission with oil self-filtration function, including a transmission housing 1 and a bottom shell 2 disposed below the transmission housing 1. An upper filter shell mechanism 3 and a filter mechanism 4 are disposed inside the bottom shell 2 and the transmission housing 1. A partition mechanism 5 is disposed below the upper filter shell mechanism 3. Synthetic fibers 6 are disposed inside the filter mechanism 4. The filter mechanism 4 includes a lower filter shell assembly 41. A connecting assembly 42 is disposed above the lower filter shell assembly 41. Filter assemblies 43 are disposed on both sides of the connecting assembly 42. The filter assembly 43 includes a rotating baffle 431. A connecting rod 432 is fixedly connected to one end of the rotating baffle 431 facing the connecting assembly 42. The rotating baffle 431 has multiple oil leakage holes 433. Multiple arc-shaped baffles 434 are fixedly connected to the rotating baffle 431. The positions of the arc-shaped baffles 434 correspond to the oil leakage holes 433. A sliding groove 437 is provided below the lower end of the rotating baffle 431. A sliding rod 438 is slidably connected in the sliding groove 437. Three connecting vertical plates 435 are fixedly provided below the higher end of the rotating baffle 431. Multiple second triangular blocks 436 are provided on one side of the three connecting vertical plates 435.

[0021] The connecting component 42 includes a connecting post 421, with inclined baffles 422 fixedly connected to both sides of the connecting post 421, two rotating baffles 431 rotatably connected to both sides of the connecting post 421, and limit sliders 423 fixedly connected to both ends of the connecting post 421.

[0022] The lower filter housing assembly 41 includes a lower filter housing 411. Two rotating baffles 431 are slidably connected to the inner wall of the lower filter housing 411 on both sides. Limiting grooves 412 corresponding to the limiting sliders 423 are provided on both sides of the interior of the lower filter housing 411. Two fixed baffles 413 are fixedly connected to the lower interior of the lower filter housing 411. Connecting posts are fixedly provided on both sides of the upper end of the fixed baffles 413. The two connecting posts at the upper end of the fixed baffles 413 are rotatably connected to the sliding rod 438. A through cavity is provided on the fixed baffles 413. A textile fabric 414 is fixedly connected inside the upper cavity of 413. Multiple fixed vertical plates 415 corresponding to the connecting vertical plate 435 are fixedly connected inside the lower filter shell 411. Multiple first triangular blocks 416 corresponding to the second triangular blocks 436 are fixedly connected to the side of the fixed vertical plate 415 facing the connecting vertical plate 435. A fixed base 417 is fixedly connected inside the lower filter shell 411. The fixed base 417 is located below the connecting column 421. A spring 418 is provided between the fixed base 417 and the connecting column 421.

[0023] Magnets 419 are fixedly connected to the inner walls of the lower filter housing 411 and the two fixed baffles 413 respectively. Synthetic fiber 6 is arranged between the two fixed baffles 413. The synthetic fiber 6 has through grooves corresponding to the fixed vertical plate 415 and the fixed base 417.

[0024] The lower end of the spring 418 is fixedly connected to the upper end of the fixed base 417, and the upper end of the spring 418 is fixedly connected to the lower part of the connecting post 421.

[0025] A through hole is provided at the bottom of the lower filter housing 411, which is an oil drain hole.

[0026] The upper filter housing mechanism 3 includes an upper filter housing 31 disposed above the lower filter housing 411. The upper filter housing 31 has a liquid inlet hole 311 and a limiting groove 412 corresponding to the limiting slider 423. The upper filter housing 31 is fixedly connected to the lower filter housing 411.

[0027] The baffle mechanism 5 includes a baffle assembly 51 disposed inside the lower part of the upper filter housing 31, and an mounting assembly 52 disposed above the baffle assembly 51.

[0028] The baffle assembly 51 includes a baffle 511 fixedly connected to the lower part of the upper filter shell 31. A connecting hole 512 is provided on the baffle 511. A connecting frame 513 is fixedly connected to the upper end of the baffle 511. The connecting frame 513 is positioned corresponding to the connecting hole 512. A groove 514 is provided on the connecting frame 513. A fixed bent rod 515 is fixedly connected to the inner wall side of the groove 514 on the connecting frame 513. A rotating wheel 516 is rotatably connected to the fixed bent rod 515. The rotating wheel 516 is positioned corresponding to the groove 514. A plurality of oil leakage grooves 517 are provided on the baffle 511. The oil leakage grooves 517 are located near the connecting frame 513.

[0029] The mounting assembly 52 includes a fixed housing 521 fixedly connected above the partition 511. A sliding cavity 522 is provided on the side of the fixed housing 521 facing the connecting hole 512. A sliding plate 523 is slidably connected inside the fixed housing 521. Multiple movable cavities 524 are provided on both sides of the sliding plate 523. Movable balls 525 are movably arranged in the movable cavities 524. A first connecting rope 526 is fixedly connected to one side of the sliding plate 523. A sliding column 527 is fixedly connected to the other end of the first connecting rope 526. The sliding column 527 is slidably arranged in the sliding cavity 522. A second connecting rope 528 is fixedly connected to the other end of the sliding column 527. The second connecting rope 528 corresponds to the groove 514 and the rotating wheel 516. The other end of the second connecting rope 528 is fixedly connected above the connecting column 421. The sliding column 527 slides in the sliding cavity 522 to prevent oil and impurities from entering the fixed housing 521.

[0030] The working principle of this invention is as follows: During use, transmission fluid containing impurities enters the upper filter housing 31 through the inlet hole 311 and first falls onto the baffle 511. The baffle 511 acts as a buffer, reducing the fluid flow rate. The fluid then flows downwards through multiple drain grooves 517 on the baffle 511. These drain grooves 517 are located near the connecting frame 513 and are designed to disperse the fluid flow, preventing large particles of impurities from directly impacting the filter assembly below. The fluid passing through the baffle 511 falls onto the inclined baffle 422 below. The inclined baffle 422 guides the fluid to the rotating baffles 431 on both sides. As the fluid flows through the rotating baffles 431, it passes through the drain grooves... Multiple oil leakage holes 433 are provided. An arc-shaped baffle 434 corresponding to the position of the oil leakage hole 433 is fixed on the rotating baffle 431. The arc-shaped baffle 434 is a quarter-spherical shell. The function of these arc-shaped baffles 434 is to guide the flow of oil and block most impurities from entering the oil leakage hole 433. Using gravity, the heavier metal debris is allowed to fall along the inclined surface of the rotating baffle 431 to the side of the lower fixed baffle 413 and land on the magnetic plate 419. The sliding long groove 437 opened below the lower end of the rotating baffle 431 cooperates with the sliding long rod 438 to ensure that the rotating baffle 431 can be raised and to limit its range of motion to prevent impurities from flowing back. When the iron filings in the oil flow through the area between the two sides of the inner wall of the lower filter housing 411 and the two fixed baffles 413, they are attracted by the strong magnet 419 and fixed in the dirt-holding area to prevent them from continuing to circulate with the oil. The oil with the iron filings removed continues to flow through the textile 414 to the area between the two fixed baffles 413, where high-performance synthetic fibers 6 are provided. The oil passes through the synthetic fibers 6 to reach the through hole below the lower filter housing 411, thus being thoroughly filtered. During vehicle operation, the sliding plate 523 is triggered by inertia due to the acceleration, deceleration, and bumps of the vehicle. When the vehicle brakes suddenly, accelerates, or bumps, the sliding plate 523 slides in the sliding cavity 522 under the action of inertia. The movement of the sliding plate 523 pulls the first connecting rope 526, which in turn drives the sliding column 527 to slide in the sliding cavity 522. Due to the cooperation between the sliding column 527 and the sliding cavity 522, oil and impurities can be effectively prevented from entering the fixed shell 521, ensuring the operation of the sliding plate 523. The other end of the sliding column 527 is connected to the second connecting rope 528. The second connecting rope 528 passes over the rotating wheel 516 on the connecting frame 513, extends downwards, and is fixedly connected above the connecting post 421. When the vehicle generates inertia, the tension is transmitted through this rope system, overcoming the elastic force of the spring 418 and pulling the connecting post 421 upwards. As the connecting post 421 moves upwards, it drives the inclined baffle 422 fixedly connected to it and the rotating baffle 431 rotatably connected to it to move together. When the connecting post 421 is pulled up by the rotating baffle 431, the second triangular block 436 will contact, squeeze, and slip off the first triangular block 416, generating a slight vibration. The vibration is transmitted to the entire rotating baffle 431 through the connecting vertical plate 435. The vibration can shake off the debris and impurities attached to the surface of the rotating baffle 431, the edge of the oil leak hole 433, and the arc-shaped baffle 434, preventing the oil leak hole 433 from being blocked. When the vehicle's movement is stable and the inertial force disappears, the spring 418 between the fixed base 417 and the connecting column 421 pulls the connecting column 421 back to its original position. During the reset process, the second triangular block 436 and the first triangular block 416 come into contact and collide again, generating a secondary vibration, which cleans the rotating baffle 431 once more.

[0031] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A vehicle transmission with oil self-filtration function, comprising a transmission housing (1) and a bottom shell (2) disposed below the transmission housing (1), wherein an upper filter shell mechanism (3) and a filter mechanism (4) are disposed within the bottom shell (2) and the transmission housing (1), a partition mechanism (5) is disposed below the upper filter shell mechanism (3), and synthetic fibers (6) are disposed within the filter mechanism (4), characterized in that: The filtration mechanism (4) includes a lower filter housing assembly (41), a connecting assembly (42) is provided above the lower filter housing assembly (41), and filter assemblies (43) are provided on both sides of the connecting assembly (42). The filter assembly (43) includes a rotating baffle (431), with a connecting rod (432) fixedly connected to one end of the rotating baffle (431) facing the connecting assembly (42). The rotating baffle (431) has multiple oil leakage holes (433) and multiple arc-shaped baffles (434) fixedly connected to it. The position of the arc-shaped baffles (434) corresponds to the oil leakage holes (433). A sliding groove (437) is provided below the lower end of the rotating baffle (431), and a sliding rod (438) is slidably connected in the sliding groove (437). Three connecting vertical plates (435) are fixedly provided below the higher end of the rotating baffle (431), and multiple second triangular blocks (436) are provided on one side of the three connecting vertical plates (435).

2. A vehicle transmission with oil self-filtration function according to claim 1, characterized in that: The connecting assembly (42) includes a connecting post (421), with inclined baffles (422) fixedly connected to both sides of the connecting post (421), and two rotating baffles (431) rotatably connected to both sides of the connecting post (421). Limiting sliders (423) are fixedly connected to both ends of the connecting post (421).

3. A vehicle transmission with oil self-filtration function according to claim 2, characterized in that: The lower filter housing assembly (41) includes a lower filter housing (411). Two rotating baffles (431) are slidably connected to the inner wall of the lower filter housing (411) on both sides. Limiting grooves (412) corresponding to the limiting sliders (423) are provided on both sides of the interior of the lower filter housing (411). Two fixed baffles (413) are fixedly connected to the lower interior of the lower filter housing (411). Connecting posts are fixedly provided on both sides of the upper end of the fixed baffles (413). The two connecting posts at the upper end of the fixed baffles (413) are rotatably connected to the sliding rod (438). A through cavity is provided on the fixed baffles (413). 413) A textile fabric (414) is fixedly connected inside the upper cavity. Multiple fixed vertical plates (415) corresponding to the connecting vertical plate (435) are fixedly connected inside the lower filter shell (411). Multiple first triangular blocks (416) corresponding to the second triangular block (436) are fixedly connected to the side of the fixed vertical plate (415) facing the connecting vertical plate (435). A fixed base (417) is fixedly connected inside the lower filter shell (411). The fixed base (417) is located below the connecting column (421). A spring (418) is provided between the fixed base (417) and the connecting column (421).

4. A vehicle transmission with oil self-filtration function according to claim 3, characterized in that: Magnets (419) are fixedly connected between the inner walls of the lower filter shell (411) and the two fixed baffles (413). The synthetic fiber (6) is arranged between the two fixed baffles (413). The synthetic fiber (6) has through grooves corresponding to the fixed vertical plate (415) and the fixed base (417).

5. A vehicle transmission with oil self-filtration function according to claim 4, characterized in that: The lower end of the spring (418) is fixedly connected to the upper end of the fixed base (417), and the upper end of the spring (418) is fixedly connected to the lower part of the connecting column (421).

6. A vehicle transmission with oil self-filtration function according to claim 5, characterized in that: A through hole is provided at the bottom of the lower filter shell (411).

7. A vehicle transmission with oil self-filtration function according to claim 3, characterized in that: The upper filter housing mechanism (3) includes an upper filter housing (31) disposed above the lower filter housing (411), and the upper filter housing (31) is provided with a liquid inlet hole (311).

8. A vehicle transmission with oil self-filtration function according to claim 7, characterized in that: The partition mechanism (5) includes a partition assembly (51) disposed below the interior of the upper filter housing (31), and an installation assembly (52) is disposed above the partition assembly (51).

9. A vehicle transmission with oil self-filtration function according to claim 8, characterized in that: The partition assembly (51) includes a partition (511) fixedly connected to the lower part of the upper filter shell (31). The partition (511) has a connecting hole (512). A connecting frame (513) is fixedly connected to the upper end of the partition (511). The connecting frame (513) corresponds to the position of the connecting hole (512). The connecting frame (513) has a groove (514). A fixed bent rod (515) is fixedly connected to the inner wall side of the groove (514) of the connecting frame (513). A rotating wheel (516) is rotatably connected to the fixed bent rod (515). The rotating wheel (516) corresponds to the groove (514). The partition (511) has multiple oil leakage grooves (517). The oil leakage grooves (517) are located near the connecting frame (513).

10. A vehicle transmission with oil self-filtration function according to claim 9, characterized in that: The mounting assembly (52) includes a fixed housing (521) fixedly connected above the partition (511). The fixed housing (521) has a sliding cavity (522) on the side facing the connecting hole (512). A sliding plate (523) is slidably connected inside the fixed housing (521). Multiple movable cavities (524) are respectively opened on both sides of the sliding plate (523). A movable ball (525) is movably arranged in the movable cavity (524). A first connecting rope (526) is fixedly connected to one side of the sliding plate (523). A sliding column (527) is fixedly connected to the other end of the first connecting rope (526). The sliding column (527) is slidably arranged in the sliding cavity (522). A second connecting rope (528) is fixedly connected to the other end of the sliding column (527). The second connecting rope (528) corresponds to the groove (514) and the rotating wheel (516). The other end of the second connecting rope (528) is fixedly connected above the connecting column (421).