Built-in oil filter structure of drive axle

Abstract

The utility model relates to a built-in oil filter structure of a drive axle. The built-in oil filter structure comprises an upper cover assembly, a magnet, a filter element assembly and a shell, the upper cover assembly is connected with the shell, and the filter element assembly is arranged in the shell; the filter element assembly comprises an upper cover plate, a filter element and a lower cover plate which are connected in sequence; the upper cover plate comprises an oil outlet, a positioning column and a fixed convex point; the upper cover plate comprises an oil storage cavity which is used for mounting a magnet and storing oil to enable the magnet to adsorb metal particles; the magnet is arranged on the positioning column of the upper cover plate and is fixed by the fixed salient point; an oil inlet and a shell oil outlet are formed in the shell; dirty oil passes through the oil inlet, the guide column, the magnet, the oil outlet and the filter element and finally flows out of the oil outlet of the shell. Compared with the prior art, the device not only can realize adsorption of metal impurities, but also can realize regular maintenance; the utility model has the advantages of compact structure and high integration level; the filtering efficiency is high; installation is simple, and maintenance and replacement are easy; the cost is low and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to an oil filter structure, in particular to a built-in oil filter structure of a drive axle. Background Art

[0002] Lubricating oil plays a crucial role in automotive drive axles, reducing friction between components and protecting the axle from excessive wear. Existing technology involves adding a built-in oil filter to the axle housing and installing magnets at the bottom of the housing to capture metal shavings. While magnets can absorb some metal impurities, they are difficult to install and require regular maintenance. Furthermore, deteriorating lubricating oil cleanliness can cause excessive wear on the main reduction gear. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the above-mentioned prior art and provide a built-in oil filter structure for a drive axle, which can not only adsorb metal impurities but also achieve regular maintenance; the utility model has a compact structure and high integration; high filtration efficiency; simple installation, easy maintenance and replacement; low cost and small space.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] The utility model can achieve both the absorption of metal impurities and regular maintenance by installing a filter with integrated magnets on the bridge housing.

[0006] The utility model provides a drive axle built-in oil filter structure, comprising: an upper cover assembly, a magnet, a filter element assembly, and a housing; the upper cover assembly is connected to the housing, and the filter element assembly is arranged in the housing;

[0007] The filter element assembly includes: an upper cover plate, a filter element, and a lower cover plate connected in sequence;

[0008] The upper cover includes: an oil outlet, a positioning column, and a fixing convex point; the upper cover contains an oil storage cavity, which is used to install the magnet and store oil for the magnet to absorb metal particles; the magnet is installed on the positioning column of the upper cover and is fixed by the fixing convex point;

[0009] The shell is provided with an oil inlet and a shell oil outlet; the shell oil outlet is arranged at the bottom of the shell, and the oil inlet is arranged at the upper end of the shell.

[0010] The dirty oil passes through the oil inlet, guide column, magnet, oil outlet, filter element, and finally flows out from the oil outlet of the housing.

[0011] Furthermore, the upper cover assembly is provided with a second thread, and the shell is provided with a third thread. The second thread and the third thread match each other, and the upper cover assembly and the shell are connected through the second thread and the third thread.

[0012] Furthermore, the upper cover assembly is provided with a first thread, and the first thread is used to connect to the bridge housing.

[0013] Furthermore, the upper cover assembly includes an upper cover, and a first sealing ring is provided below the upper cover.

[0014] Furthermore, the upper cover includes a guide column.

[0015] Furthermore, a second sealing ring is provided on the lower cover plate. The filter element assembly is pressed into the housing and is compressed and sealed by the second sealing ring.

[0016] Furthermore, before the filter element assembly is pressed into the housing, a gap is formed to allow dirty oil to flow in.

[0017] Furthermore, the oil outlets are circular holes and are distributed in a circular array on the upper cover plate.

[0018] Furthermore, the oil inlets are distributed in a circular array on the housing.

[0019] Furthermore, a support tube is provided in the filter element.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] (1) The utility model has a compact structure and high integration.

[0022] (2) Multiple filtration by magnet and filter element, high filtration efficiency; pre-filtration by magnet, long service life of filter element.

[0023] (3) The oil is guided to enter the oil storage chamber for filtration; the oil storage chamber is designed so that the magnet can fully absorb the particles.

[0024] (4) The magnet is flat in design, with strong magnetic force on the adsorption surface and high adsorption efficiency; the magnet is easy to install, maintain and replace; the magnet is small in size, low in cost and takes up little space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the built-in oil filter structure of the drive axle.

[0026] Figure 2 It is a structural diagram of the upper cover assembly.

[0027] Figure 3 Schematic diagram of the structure of the upper cover.

[0028] Figure 4 It is a structural diagram of the filter element assembly.

[0029] Figure 5 A cross-sectional view of the filter element assembly.

[0030] Figure 6 Schematic diagram of the shell structure.

[0031] Figure 7 This is a cross-sectional view of the drive axle's built-in oil filter structure.

[0032] Figure markings: 1. Upper cover assembly, 2. Magnet, 3. Filter element assembly, 4. Housing, 1.1. Upper cover, 1.2. First sealing ring, 1.3. First thread, 1.4. Second thread, 1.1.1 Guide column, 3.1.1. Oil outlet, 3.1.2. Positioning column, 3.1.3. Fixed bump, 3.1.4. Oil storage chamber, 3.1. Upper cover, 3.2. Support tube, 3.3. Filter element, 3.4. Lower cover, 3.5. Second sealing ring, 4.1. Oil inlet, 4.2. Third thread, 4.3. Housing oil outlet. DETAILED DESCRIPTION

[0033] The following is a detailed description of the present invention with reference to the accompanying drawings and specific embodiments. Any features such as component models, material names, connection structures, control methods, algorithms, etc. not explicitly described in this technical solution are considered to be common technical features disclosed in the prior art.

[0034] Example 1

[0035] This embodiment provides a drive axle built-in oil filter structure, such as Figure 1 As shown, it includes: an upper cover assembly 1, a magnet 2, a filter element assembly 3, and a housing 4; the upper cover assembly 1 is connected to the housing 4, and the filter element assembly 3 is arranged in the housing 4;

[0036] like Figure 4 As shown, the filter element assembly 3 includes: an upper cover plate 3.1, a filter element 3.3, and a lower cover plate 3.4 connected in sequence;

[0037] like Figure 3 As shown, the upper cover 3.1 includes: an oil outlet 3.1.1, a positioning column 3.1.2, and a fixed protrusion 3.1.3; the upper cover 3.1 contains an oil storage cavity 3.1.4, which is used to install the magnet 2 and store oil to allow the magnet 2 to absorb metal particles; Figure 3 、 Figure 6 As shown, the magnet 2 is mounted on the positioning post 3.1.2 of the upper cover 3.1 and is fixed by the fixing protrusion 3.1.2;

[0038] like Figure 6 As shown, the housing 4 is provided with an oil inlet 4.1 and a housing oil outlet 4.3; the housing oil outlet 4.3 is provided at the bottom of the housing 4, and the oil inlet 4.1 is provided at the upper end of the housing 4.

[0039] like Figure 6As shown, the dirty oil passes through the oil inlet 4.1, the guide column 1.1.1, the magnet 2, the oil outlet 3.1.1, the filter element 3.3, and finally flows out from the oil outlet 4.3 of the housing.

[0040] In a specific embodiment, Figure 2 、 Figure 6 、 Figure 7 As shown, the upper cover assembly 1 is provided with a second thread 1.4, and the shell 4 is provided with a third thread 4.2. The second thread 1.4 and the third thread 4.2 cooperate with each other, and the upper cover assembly 1 and the shell 4 are connected through the second thread 1.4 and the third thread 4.2.

[0041] In a specific embodiment, the upper cover assembly 1 is provided with a first thread 1.3, and the first thread 1.3 is used to connect to the axle housing.

[0042] In a specific embodiment, Figure 2 As shown, the upper cover assembly 1 includes an upper cover 1.1, and a first sealing ring 1.2 is provided below the upper cover 1.1.

[0043] In a specific embodiment, the upper cover 1.1 includes a guide column 1.1.1.

[0044] In a specific embodiment, a second sealing ring 3.5 is provided on the lower cover plate 3.4. The filter element assembly 3 is pressed into the housing 4 and is compressed and sealed by the second sealing ring 3.5.

[0045] In a specific embodiment, Figure 5 、 Figure 7 As shown, before the filter element assembly 3 is pressed into the housing 4, a gap is formed to allow dirty oil to flow in.

[0046] In a specific embodiment, the oil outlets 3.1.1 are circular holes and are distributed in a circumferential array on the upper cover plate 3.1.

[0047] In a specific embodiment, the oil inlets 4.1 are distributed on the housing 4 in a circumferential array.

[0048] In a specific embodiment, a support tube 3.2 is provided in the filter element 3.3.

[0049] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0050] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A drive axle built-in oil filter structure, characterized in that: include: An upper cover assembly (1), a magnet (2), a filter element assembly (3), and a housing (4); the upper cover assembly (1) is connected to the housing (4), and the filter element assembly (3) is disposed in the housing (4); The filter element assembly (3) comprises: an upper cover plate (3.1), a filter element (3.3), and a lower cover plate (3.4) connected in sequence; The upper cover (3.1) includes an oil outlet (3.1.1), a positioning column (3.1.2), and a fixed convex point (3.1.3); the upper cover (3.1) includes an oil storage cavity (3.1.4), and the oil storage cavity (3.1.4) is used to install the magnet (2) and store oil to allow the magnet (2) to absorb metal particles; the magnet (2) is installed on the positioning column (3.1.2) of the upper cover (3.1) and is fixed by the fixed convex point (3.1.2); The housing (4) is provided with an oil inlet (4.1) and a housing oil outlet (4.3); The dirty oil passes through the oil inlet (4.1), the guide column (1.1.1), the magnet (2), the oil outlet (3.1.1), the filter element (3.3), and finally flows out from the oil outlet (4.3) of the housing.

2. The internal oil filter structure of a drive axle according to claim 1, characterized in that: The upper cover assembly (1) is provided with a second thread (1.4), and the shell (4) is provided with a third thread (4.2). The second thread (1.4) and the third thread (4.2) cooperate with each other, and the upper cover assembly (1) and the shell (4) are connected via the second thread (1.4) and the third thread (4.2).

3. The internal oil filter structure of a drive axle according to claim 1, characterized in that: The upper cover assembly (1) is provided with a first thread (1.3), and the first thread (1.3) is used for connecting to the axle housing.

4. The internal oil filter structure of a drive axle according to claim 1, characterized in that: The upper cover assembly (1) comprises an upper cover (1.1), and a first sealing ring (1.2) is provided below the upper cover (1.1).

5. The internal oil filter structure of a drive axle according to claim 1, characterized in that: The upper cover (1.1) comprises a guide column (1.1.1).

6. The internal oil filter structure of a drive axle according to claim 1, characterized in that: A second sealing ring (3.5) is provided on the lower cover plate (3.4).

7. The internal oil filter structure of a drive axle according to claim 1, characterized in that: Before the filter element assembly (3) is pressed into the housing (4), a gap is formed to allow dirty oil to flow in.

8. The internal oil filter structure of a drive axle according to claim 1, characterized in that: The oil outlets (3.1.1) are circular holes and are distributed in a circumferential array on the upper cover plate (3.1).

9. The internal oil filter structure of a drive axle according to claim 1, characterized in that: The oil inlets (4.1) are distributed in a circumferential array on the housing (4).

10. The internal oil filter structure of a drive axle according to claim 1, characterized in that: A support tube (3.2) is provided in the filter element (3.3).

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