A long service life automobile transmission gasket
By employing a multi-movable connection design between the mounting plate and the gasket body, along with a buffer assembly, in automotive transmission gaskets, the problems of gasket loosening and wear are solved, extending service life and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG TAINADA AUTO PARTS CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing automotive transmission gaskets are prone to loosening, wear, and insufficient lubrication during use, resulting in a shortened service life and reduced work efficiency.
It adopts a multi-movable connection design of mounting plate and gasket body, combined with buffer component and lubricating oil groove. Through precise alignment of positioning groove and mounting hole, thickened plate and buffer spring are used to absorb impact force, and lubricating oil groove is continuously supplied to reduce metal contact.
This achieves stable installation of the gaskets, reduces loosening and wear, extends service life, and improves work efficiency.
Smart Images

Figure CN224533439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gaskets, specifically a long-service-life automotive transmission gasket. Background Technology
[0002] Automotive transmission gaskets are thin, sheet-like parts installed between various components inside the transmission. They are typically made of metals such as steel, copper, and aluminum, or composite materials such as rubber and fiber-reinforced materials. Their core function is to fill gaps between components, adjust tolerances, reduce friction, seal against leaks, and absorb vibrations or shocks to ensure smooth and efficient operation of the transmission.
[0003] An investigation revealed a utility model patent (publication number: CN220622643U) disclosing a differential gasket. Its general description includes an upper gasket cover with a slot on its top. A cover plate is engaged with the top of the upper gasket cover via the slot, and a locking block is fixedly connected to the bottom of the cover plate. A through hole is formed on the side wall of the upper gasket cover. A buffer assembly is fixedly connected inside the upper gasket cover, and an anti-collision pad is fixedly connected to the bottom of the buffer assembly. A ball bearing is engaged with the top of the upper gasket cover. This utility model increases the gasket thickness through the upper gasket cover and buffer assembly, reducing gaps between connecting structures during gasket use. This prevents direct contact between gears and the differential housing, protecting the differential structure and buffering impacts. The ball bearing at the top lubricates the contact area between the top and the differential, reducing friction.
[0004] The above technical solution increases the thickness of the gasket by setting an upper gasket cover and a buffer component, which reduces gaps and impacts between the connecting structures during the use of the gasket and extends the service life of the gears and housing. However, when the gasket is in use, the ball bearings are locked on the top of the upper gasket cover and lack a guiding and fixing design. They are prone to falling off or misaligning during installation, resulting in loose connections. Repeated adjustments are required, increasing the workload. The buffer component is subjected to gear impacts for a long time. The contact between the ball bearings and the differential is point lubrication. Insufficient lubricant replenishment or ball wear can increase local friction, which may cause scratches or high-temperature deformation on the gasket surface, shortening the overall life and thus affecting work efficiency.
[0005] Therefore, this utility model provides a long-service-life automotive transmission gasket to solve the above-mentioned problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This invention provides a long-service-life automotive transmission gasket, aiming to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a long-service-life automotive transmission gasket, comprising an installation structure, wherein the installation structure includes an installation plate, the installation plate having two sets of movably connected components, the outer surface of the installation plate having a positioning groove, the positioning groove having an installation hole inside, a gasket structure being installed inside the installation plate, the gasket structure including a gasket body, the gasket body having a lubricating oil groove inside, and a buffer assembly connected to the outer wall of the installation structure, the buffer assembly including a connecting seat and a buffer spring.
[0010] As a preferred technical solution of this application, the mounting plate is provided with two sets of horizontally corresponding movable connections. An arc-shaped positioning groove is fixedly opened at the center of the outer surface of the mounting plate. The positioning groove extends to the bottom of the mounting plate. A circular mounting hole is fixedly opened inside the positioning groove. Positioning rings are fixedly connected to both the upper and lower sides of the mounting hole.
[0011] As a preferred technical solution of this application, the mounting plate is an annular metal plate, the surface of the mounting plate is symmetrically provided with raised reinforcing ribs, and the outer two sides of the mounting plate are provided with circular grooves.
[0012] As a preferred technical solution of this application, the gasket body is provided with two sets of movably connected to the center position inside the mounting plate. The two sets of gasket bodies are vertically distributed, and through holes are uniformly fixedly opened on the outer wall of the gasket body.
[0013] As a preferred technical solution of this application, the gasket body includes a through hole with a suitable lubricating oil groove installed inside, and a sealing ring is fixedly connected to both ends of the lubricating oil groove.
[0014] As a preferred technical solution of this application, the bottom of the lubricating oil groove is provided with a chip removal hole that penetrates the main body of the gasket, and the inner wall of the chip removal hole is polished.
[0015] As a preferred technical solution of this application, the gasket body is a multi-layer composite structure, including a surface wear-resistant alloy layer and an intermediate elastic rubber layer.
[0016] As a preferred technical solution of this application, the gasket structure further includes a thickening plate, which is annular in shape, made of high carbon steel, and 1.5 times the thickness of the gasket body. The outer surface of the thickening plate is uniformly provided with circular holes, and the inner wall of the circular holes is movably connected to the outer wall of the lubricating oil groove.
[0017] As a preferred technical solution of this application, the connecting seat in the buffer assembly is provided with two sets of vertically corresponding distributions, and a buffer spring is installed inside the connecting seat, with both ends of the buffer spring fixedly connected to the inner wall of the connecting seat.
[0018] As a preferred technical solution of this application, the outer wall of the connecting seat is fixedly connected to the circular groove in the mounting plate, and the connecting seat is at the same height as the gasket body.
[0019] (III) Beneficial Effects
[0020] The mounting plate features a two-stage horizontal multi-movable connection design. Precise alignment is achieved through the cooperation of positioning grooves and mounting holes, preventing assembly misalignment. Positioning rings and arc-shaped positioning grooves ensure a tight fit between the gasket and the transmission housing contact surface, reducing the risk of loosening. Thickened plates provide additional support, and their round holes engage with the lubricating oil grooves to form a physical lock, preventing lateral displacement of the gasket and enhancing the stability of the gasket installation.
[0021] A buffer assembly is installed, and the buffer spring absorbs the impact force during the operation of the transmission within the connecting seat, reducing the instantaneous load on the gasket and thus reducing fatigue damage to the mounting structure. At the same time, it works in conjunction with the lubricating oil groove to continuously supply oil to the friction surface, reducing direct metal-to-metal contact. The sealing ring prevents lubricant leakage, extends the lubrication cycle, and thus extends the service life of the gasket. Attached Figure Description
[0022] Figure 1 A schematic diagram of a long-life automotive transmission gasket;
[0023] Figure 2 A schematic diagram of the overall internal structure of a long-life automotive transmission gasket;
[0024] Figure 3 This is a schematic diagram of the mounting structure in a long-life automotive transmission gasket.
[0025] Figure 4 This is a schematic diagram showing the connection relationship of the buffer components in a long-life automotive transmission gasket.
[0026] Figure 5 This is a schematic diagram of the gasket structure in a long-life automotive transmission gasket.
[0027] In the picture:
[0028] 1. Installation structure; 101. Mounting plate; 102. Positioning groove; 103. Mounting hole; 2. Gasket structure; 201. Gasket body; 202. Lubricating oil groove; 203. Thickened plate; 3. Buffer assembly; 301. Connecting seat; 302. Buffer spring. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] This utility model provides a long-service-life automotive transmission gasket, such as... Figure 1 , Figure 3 and Figure 5 As shown, the installation includes an installation structure 1, which includes an installation plate 101. The installation plate 101 has two sets of movably connected components. The outer surface of the installation plate 101 has a positioning groove 102, and the positioning groove 102 has an installation hole 103 inside. A gasket structure 2 is installed inside the installation plate 101. The gasket structure 2 includes a gasket body 201, and the gasket body 201 has a lubricating oil groove 202 inside. A buffer assembly 3 is connected to the outer wall of the installation structure 1. The buffer assembly 3 includes a connecting seat 301 and a buffer spring 302.
[0031] Mounting plate 101 has two sets of horizontally corresponding movable connections. An arc-shaped positioning groove 102 is fixedly opened at the center of the outer surface of mounting plate 101. The positioning groove 102 extends to the bottom of mounting plate 101. A circular mounting hole 103 is fixedly opened inside the positioning groove 102. Positioning rings are fixedly connected to the upper and lower sides of the mounting hole 103.
[0032] Mounting plate 101 is a ring-shaped metal plate with symmetrical raised reinforcing ribs on its surface and circular grooves on both sides of its outer side.
[0033] The gasket body 201 has two sets of movable connections to the center of the mounting plate 101. The two sets of gasket bodies 201 are vertically distributed, and through holes are uniformly fixed on the outer wall of the gasket body 201.
[0034] The gasket body 201 includes a through hole in which a suitable lubricating oil groove 202 is installed, and both ends of the lubricating oil groove 202 are fixedly connected with sealing rings.
[0035] The bottom of the lubricating oil groove 202 is provided with a chip removal hole that penetrates the gasket body 201, and the inner wall of the chip removal hole is polished.
[0036] The gasket body 201 is a multi-layer composite structure, including a surface wear-resistant alloy layer and an intermediate elastic rubber layer.
[0037] The gasket structure 2 also includes a thickened plate 203, which is in the shape of a ring. The thickened plate 203 is made of high carbon steel and its thickness is 1.5 times that of the gasket body 201. The outer surface of the thickened plate 203 is uniformly provided with round holes, and the inner wall of the round holes is movably connected to the outer wall of the lubricating oil groove 202.
[0038] When in use, the device achieves stable assembly through two sets of movable mounting plates 101. The positioning groove 102 and the mounting hole 103 cooperate to fix the transmission components with bolts to ensure accurate positioning. The two sets of horizontally corresponding mounting plates 101 are radially aligned through the arc-shaped positioning groove 102. The positioning ring in the mounting hole 103 prevents the bolts from loosening. The through-type design facilitates bidirectional installation.
[0039] Furthermore, in order to extend the service life of the device, such as... Figure 2 and Figure 4 As shown, the connecting seat 301 in the buffer assembly 3 has two sets of vertically corresponding distributions. The connecting seat 301 is equipped with a buffer spring 302, and the two ends of the buffer spring 302 are fixedly connected to the inner wall of the connecting seat 301.
[0040] The outer wall of the connecting seat 301 is fixedly connected to the circular groove in the mounting plate 101, and the connecting seat 301 is at the same height as the gasket body 201.
[0041] When in use, the vertically distributed connecting seat 301 is buffered bidirectionally by the buffer spring 302. The spring compression and rebound cancel out vibrations in different directions. The connecting seat 301 is at the same height as the gasket body 201, so that the vibration load is evenly distributed to the entire gasket structure 2, avoiding stress concentration, reducing damage to the gasket during use, and thus extending the service life of the gasket.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A long-service-life automotive transmission gasket, characterized in that: The system includes an installation structure (1), which includes an installation plate (101). The installation plate (101) has two sets of movable connections. The outer surface of the installation plate (101) has a positioning groove (102). The positioning groove (102) has an installation hole (103) inside. The installation plate (101) has a gasket structure (2) installed inside. The gasket structure (2) includes a gasket body (201). The gasket body (201) has a lubricating oil groove (202) inside. The outer wall of the installation structure (1) is connected to a buffer assembly (3). The buffer assembly (3) includes a connecting seat (301) and a buffer spring (302).
2. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The mounting plate (101) has two sets of horizontally corresponding movable connections. An arc-shaped positioning groove (102) is fixedly opened at the center of the outer surface of the mounting plate (101). The positioning groove (102) extends to the bottom of the mounting plate (101). A circular mounting hole (103) is fixedly opened inside the positioning groove (102). Positioning rings are fixedly connected to both the upper and lower sides of the mounting hole (103).
3. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The mounting plate (101) is an annular metal plate, and the surface of the mounting plate (101) is symmetrically provided with raised reinforcing ribs. The outer sides of the mounting plate (101) are provided with circular grooves.
4. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The gasket body (201) has two sets of movably connected to the center of the mounting plate (101). The two sets of gasket bodies (201) are vertically distributed, and the outer wall of the gasket body (201) is uniformly fixed with through holes.
5. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The gasket body (201) includes a through hole in which a suitable lubricating oil groove (202) is installed, and both ends of the lubricating oil groove (202) are fixedly connected with sealing rings.
6. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The bottom of the lubricating oil groove (202) is provided with a chip removal hole that penetrates the gasket body (201), and the inner wall of the chip removal hole is polished.
7. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The gasket body (201) is a multi-layer composite structure, including a surface wear-resistant alloy layer and an intermediate elastic rubber layer.
8. The long-service-life automotive transmission gasket according to claim 1, characterized in that: The gasket structure (2) also includes a thickened plate (203), which is in the shape of a ring. The thickened plate (203) is made of high carbon steel and its thickness is 1.5 times that of the gasket body (201). The outer surface of the thickened plate (203) is uniformly provided with round holes, and the inner wall of the round holes is movably connected to the outer wall of the lubricating oil groove (202).
9. A long-service-life automotive transmission gasket according to claim 1, characterized in that: The buffer assembly (3) has two sets of connecting seats (301) arranged vertically and correspondingly. The connecting seats (301) are equipped with buffer springs (302), and the two ends of the buffer springs (302) are fixedly connected to the inner wall of the connecting seats (301).
10. A long-service-life automotive transmission gasket according to claim 1, characterized in that: The outer wall of the connecting seat (301) is fixedly connected to the circular groove in the mounting plate (101), and the connecting seat (301) is at the same height as the gasket body (201).