A puncture-resistant screen structure for a gearbox

CN224748623UActive Publication Date: 2026-09-15GUANGZHOU TIANRUI AUTOMOBILE TECH CO LTD
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Patent Information

Application Number
CN202521884066.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-09-15
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

[0005]针对现有技术的不足,本实用新型提供了一种变速箱的耐穿刺型滤网结构,可以解决当油液中混入尖锐金属碎屑时,滤网易被穿刺,导致未过滤的杂质进入变速箱内部,加剧部件磨损,同时,单一设置的滤网抗冲击性差,变速箱油液流速波动时,滤网易因局部受力过大而变形的问题

Benefits of technology

[0019] 1. Through the installation of a protective support net, a metal filter, and reinforcement components, the protective support net can initially block larger impurities in the oil, the metal filter can perform fine filtration, and the double C-shaped reinforcement and target-shaped fixing parts in the reinforcement components work together to enhance the overall strength and puncture resistance of the metal filter and the protective support net, effectively preventing sharp impurities from puncturing the filter and ensuring the filtration effect.

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Abstract

The utility model relates to gearbox technical field, concretely relates to a kind of puncture-resistant filter screen structure of gearbox, including upper end cover and bottom cover, protective support net is provided in upper end cover, metal filter screen is provided below protective support net, reinforcing component is provided between protective support net and metal filter screen, reinforcing component includes the reinforcing component between protective support net and metal filter screen between several double C-shaped reinforcing members and several target-like fixing pieces, double C-shaped reinforcing member includes first C-shaped block and second C-shaped block, first C-shaped block and second C-shaped block are symmetrically arranged, target-like fixing piece includes fixed ring, first fixed rod and second fixed rod, first fixed rod and second fixed rod are matched and overall cross-shaped;Through the cooperation of double C-shaped reinforcing member and target-like fixing piece in reinforcing component, the overall strength and puncture resistance of metal filter screen and protective support net are enhanced, effectively avoid sharp impurities puncture filter screen, ensure filtration effect.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and more specifically, to a puncture-resistant filter structure for a gearbox. Background Technology

[0002] Transmission filters are a key component of automotive transmission systems, primarily used to filter metal particles, sludge, and other impurities from the transmission fluid to protect the transmission. Based on material, they are divided into filter paper and metal mesh types. The former requires regular replacement (usually every two years or 40,000-60,000 kilometers), while the latter can be washed and reused. Most current vehicle models generally use metal mesh filters; however, existing technology has the following shortcomings in its use:

[0003] When sharp metal shavings are mixed into the transmission fluid, the filter screen is easily punctured, allowing unfiltered impurities to enter the transmission and accelerate component wear. At the same time, a single filter screen has poor impact resistance, and when the transmission fluid flow rate fluctuates, the filter screen is prone to deformation due to excessive local stress, affecting actual use.

[0004] Therefore, there is an urgent need for a puncture-resistant filter structure for gearboxes to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a puncture-resistant filter structure for transmissions. This structure solves the problem that when sharp metal fragments are mixed in the transmission fluid, the filter is easily punctured, causing unfiltered impurities to enter the transmission and exacerbating component wear. Additionally, a single filter has poor impact resistance, and when the transmission fluid flow rate fluctuates, the filter is prone to deformation due to excessive local stress.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The application is as follows:

[0008] A puncture-resistant filter structure for a gearbox includes an upper cover and a bottom cover. A protective support net is provided inside the upper cover, and a metal filter is provided below the protective support net. A reinforcing component is provided between the protective support net and the metal filter.

[0009] The reinforcement components include several double C-shaped reinforcement members and several target-shaped fasteners located between the protective support mesh and the metal filter mesh;

[0010] The double C-shaped reinforcement includes a first C-shaped block and a second C-shaped block, which are symmetrically arranged.

[0011] The target-shaped fixing component includes a fixing ring, a first fixing rod, and a second fixing rod, with the first fixing rod and the second fixing rod working together to form a cross shape.

[0012] As a preferred technical solution of this application, the protective support mesh is formed with honeycomb-shaped mesh holes, the upper surface of the first C-shaped block is fixedly connected to the lower surface of the protective support mesh, and the lower surface of the second C-shaped block is fixedly connected to the upper surface of the metal filter.

[0013] As a preferred technical solution of this application, the included angle between the first fixing rod and the second fixing rod is 90 degrees, and a single target-shaped fixing member is located between two double C-shaped reinforcement members.

[0014] As a preferred technical solution of this application, the two ends of the first fixing rod are fixedly connected to two of the double C-shaped reinforcement members.

[0015] As a preferred technical solution of this application, the double C-shaped reinforcement and the target-shaped fastener are both integrally formed.

[0016] As a preferred technical solution of this application, the upper cover has a vertically penetrating oil inlet located above the protective support net, and the bottom cover has a vertically penetrating oil outlet located below the metal filter.

[0017] As a preferred technical solution of this application, a sealing gasket is provided between the upper cover and the bottom cover, and the opposite two sides of the sealing gasket are respectively attached to the upper cover and the bottom cover. The upper cover and the bottom cover are connected by multiple bolts.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. Through the installation of a protective support net, a metal filter, and reinforcement components, the protective support net can initially block larger impurities in the oil, the metal filter can perform fine filtration, and the double C-shaped reinforcement and target-shaped fixing parts in the reinforcement components work together to enhance the overall strength and puncture resistance of the metal filter and the protective support net, effectively preventing sharp impurities from puncturing the filter and ensuring the filtration effect.

[0020] 2. The sealing gasket ensures a tight seal between the upper and lower covers, preventing oil leakage. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a puncture-resistant filter structure for a gearbox provided in this application. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the separation structure of the double C-shaped reinforcement and the protective support mesh in a puncture-resistant filter structure for a gearbox provided in this application.

[0023] Figure 3This is a schematic diagram of the connection structure between the double C-shaped reinforcement and the target-shaped fixing member in a puncture-resistant filter structure for a gearbox provided in this application.

[0024] Figure 4 A schematic diagram of the overall structure of a puncture-resistant filter structure for a gearbox provided in this application. Figure 2 .

[0025] The image shows:

[0026] 1. Top cover; 2. Bottom cover; 3. Protective support mesh; 4. Metal filter mesh; 5. Double C-shaped reinforcement; 51. First C-shaped block; 52. Second C-shaped block; 6. Target-shaped fixing part; 61. Fixing ring; 62. First fixing rod; 63. Second fixing rod; 7. Oil inlet; 8. Oil outlet; 9. Sealing gasket. Detailed Implementation

[0027] 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 some embodiments of this utility model, but not all embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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. In addition, the terms "first" and "second" are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0029] Example:

[0030] like Figure 1-4As shown, the puncture-resistant filter structure for a gearbox proposed in this embodiment includes an upper cover 1 and a bottom cover 2. A protective support mesh 3 is provided inside the upper cover 1. The protective support mesh 3 has honeycomb-shaped mesh holes. A metal filter 4 is provided below the protective support mesh 3. An oil inlet 7 is vertically provided through the upper cover 1. The oil inlet 7 is located above the protective support mesh 3. In use, the oil enters from the oil inlet 7 and is first filtered through multiple honeycomb-shaped mesh holes on the protective support mesh 3 to block larger impurities in the oil. Its own structure can buffer the flow of oil and prevent high-speed oil from directly impacting the metal filter 4 and causing damage. A reinforcing component is provided between the protective support mesh 3 and the metal filter 4. The oil is finely filtered through the metal filter 4, and impurities are trapped on the surface of the metal filter 4. The reinforcing component includes several double C-shaped reinforcing members 5 and several target-shaped fixing members 6 located between the protective support mesh 3 and the metal filter 4.

[0031] The double C-shaped reinforcement 5 includes a first C-shaped block 51 and a second C-shaped block 52, which are symmetrically arranged. The target-shaped fixing member 6 includes a fixing ring 61, a first fixing rod 62, and a second fixing rod 63. The first fixing rod 62 and the second fixing rod 63 cooperate to form a cross shape. The upper surface of the first C-shaped block 51 is fixedly connected to the lower surface of the protective support net 3, and the lower surface of the second C-shaped block 52 is fixedly connected to the upper surface of the metal filter 4. The included angle between the first fixing rod 62 and the second fixing rod 63 is 90 degrees, and a single target-shaped fixing member 6 is located within it. Between the two double C-shaped reinforcement members 5, the two ends of the first fixing rod 62 are fixedly connected to two of the double C-shaped reinforcement members 5. The double C-shaped reinforcement members 5 and the target-shaped fixing member 6 are integrally formed. The double C-shaped reinforcement members 5 in the reinforcement assembly are connected to the protective support net 3 and the metal filter 4 respectively through the first C-shaped block 51 and the second C-shaped block 52. The cross-shaped structure of the target-shaped fixing member 6, together with the double C-shaped reinforcement members 5, can enhance the connection strength and overall structural strength between the protective support net 3 and the metal filter 4. When encountering sharp impurities, it can effectively resist puncture and avoid damage to the metal filter 4.

[0032] like Figure 1-4 As shown, the bottom cover 2 has a vertically penetrating oil outlet 8, which is located below the metal filter screen 4. The filtered oil flows out from the oil outlet 8 and enters the gearbox.

[0033] like Figure 1 As shown, a sealing gasket 9 is provided between the upper cover 1 and the bottom cover 2. The opposite two sides of the sealing gasket 9 are respectively attached to the upper cover 1 and the bottom cover 2. The upper cover 1 and the bottom cover 2 are connected by multiple bolts. The sealing gasket 9 can ensure the seal between the upper cover 1 and the bottom cover 2 and prevent oil leakage.

[0034] The working principle of the above embodiment is as follows: In use, the oil enters through the oil inlet 7 and is initially filtered through multiple honeycomb mesh holes on the protective support net 3 to block larger impurities in the oil. Its own structure can buffer the flow of oil and prevent high-speed oil from directly impacting the metal filter 4 and causing damage. Then, the oil is finely filtered through the metal filter 4, and impurities are trapped on the surface of the metal filter 4. The filtered oil flows out from the oil outlet 8 and enters the gearbox. The double C-shaped reinforcement 5 in the reinforcement component connects the protective support net 3 and the metal filter 4 through the first C-shaped block 51 and the second C-shaped block 52, respectively. The cross-shaped structure of the target-shaped fixing part 6, together with the double C-shaped reinforcement 5, can enhance the connection strength and overall structural strength between the protective support net 3 and the metal filter 4. When encountering sharp impurities, it can effectively resist puncture and prevent the metal filter 4 from breaking. The sealing gasket 9 can ensure the seal between the upper cover 1 and the bottom cover 2 and prevent oil leakage.

[0035] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A puncture-resistant filter structure for a gearbox, characterized in that: It includes an upper cover (1) and a bottom cover (2). A protective support net (3) is provided inside the upper cover (1). A metal filter (4) is provided below the protective support net (3). A reinforcing component is provided between the protective support net (3) and the metal filter (4). The reinforcement components include several double C-shaped reinforcement members (5) and several target-shaped fasteners (6) located between the protective support mesh (3) and the metal filter mesh (4); The double C-shaped reinforcement (5) includes a first C-shaped block (51) and a second C-shaped block (52), which are symmetrically arranged. The target-shaped fixing member (6) includes a fixing ring (61), a first fixing rod (62) and a second fixing rod (63), wherein the first fixing rod (62) and the second fixing rod (63) cooperate to form a cross shape.

2. The puncture-resistant filter structure for a gearbox according to claim 1, characterized in that, The protective support net (3) has honeycomb mesh holes through it. The upper surface of the first C-shaped block (51) is fixedly connected to the lower surface of the protective support net (3), and the lower surface of the second C-shaped block (52) is fixedly connected to the upper surface of the metal filter (4).

3. The puncture-resistant filter structure for a gearbox according to claim 2, characterized in that, The angle between the first fixing rod (62) and the second fixing rod (63) is 90 degrees, and a single target-shaped fixing member (6) is located between two double C-shaped reinforcement members (5).

4. The puncture-resistant filter structure for a gearbox according to claim 2, characterized in that, The two ends of the first fixing rod (62) are fixedly connected to two of the double C-shaped reinforcement members (5).

5. The puncture-resistant filter structure for a gearbox according to claim 1, characterized in that, The double C-shaped reinforcement (5) and the target-shaped fastener (6) are both integrally formed.

6. The puncture-resistant filter structure for a gearbox according to claim 1, characterized in that, The upper cover (1) has a vertically penetrating oil inlet (7) located above the protective support net (3), and the bottom cover (2) has a vertically penetrating oil outlet (8) located below the metal filter (4).

7. The puncture-resistant filter structure for a gearbox according to claim 1, characterized in that, A sealing gasket (9) is provided between the upper end cover (1) and the bottom cover (2). The opposite two sides of the sealing gasket (9) are respectively attached to the upper end cover (1) and the bottom cover (2). The upper end cover (1) and the bottom cover (2) are connected by multiple bolts.