Intelligent driving shock absorber seal based on finite element method

Abstract

The utility model discloses a kind of shock absorber sealing parts of intelligent driving based on finite element method, it is related to sealing part technical field, including sealing ring body sealing part, shock absorber cylinder body sealing part and shock absorber piston sealing part, the sealing ring body sealing part is located inside shock absorber piston sealing part recess, still including with the outer convex ring sealing part of shock absorber piston sealing part inner wall interference fit and with the inner convex ring sealing part of shock absorber cylinder body sealing part outer wall interference fit, the inner wall of the inner convex ring sealing part is equipped with inside small protruding sealing part, and the outer wall of outer convex ring sealing part is equipped with outside small protruding sealing part. The utility model can more reliably support sealing ring body sealing part under the action of lower convex ring sealing part and upper convex ring sealing part when bearing internal pressure change, especially high pressure, avoid sealing lip to extrude into the gap between shock absorber cylinder body sealing part and shock absorber piston sealing part, improve the durability of sealing function.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically to a sealing component for a smart driving shock absorber based on the finite element method. Background Technology

[0002] The market demand for new energy vehicles has increased significantly. With the continuous advancement of new energy vehicle technology and intelligent driving technology, and the increasing demands of consumers for driving experience and comfort, automotive suspension, as an important technology for improving vehicle handling and ride comfort, has received widespread attention globally. Among them, MRC suspension has attracted particular attention. The fluid inside the MRC shock absorber is magnetorheological fluid, a special oil with magnetic force. Conventional seals have unsatisfactory sealing lifespan. In the current context, sealing MRC shock absorber seals with magnetorheological fluid requires ensuring the reliability, durability, and low cost of the shock absorber seals. Utility Model Content

[0003] The purpose of this invention is to provide a smart driving shock absorber seal based on the finite element method, so as to solve the problems of ensuring the reliability, durability, and low cost of the shock absorber seal mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a smart driving shock absorber seal based on the finite element method, comprising a sealing ring body seal, a shock absorber cylinder seal, and a shock absorber piston seal. The sealing ring body seal is located inside the groove of the shock absorber piston seal. It also includes an outer convex ring seal that is interference-fitted with the inner wall of the shock absorber piston seal and an inner convex ring seal that is interference-fitted with the outer wall of the shock absorber cylinder seal.

[0005] The inner wall of the inner convex ring seal is provided with an inner small convex seal, and the outer wall of the outer convex ring seal is provided with an outer small convex seal.

[0006] Preferably, the top end of the sealing ring body is provided with an upper convex ring seal, and the bottom end of the sealing ring body is provided with a lower convex ring seal.

[0007] Preferably, the inner wall of the sealing ring body is provided with an inner convex ring seal, and the outer wall of the sealing ring body is provided with an outer convex ring seal.

[0008] Preferably, the outer small protruding seals are evenly distributed on the outer wall of the outer convex ring seal, and the inner small protruding seals are evenly distributed on the inner wall of the inner convex ring seal.

[0009] Preferably, the sealing ring body seal, the lower convex ring seal, the outer convex ring seal, the upper convex ring seal, and the inner convex ring seal are all made of hydrogenated nitrile rubber.

[0010] Preferably, the sealing ring body sealant uses the finite element method to optimize the ring body features and dimensions.

[0011] Compared with the prior art, the beneficial effects of this utility model are: under the action of the lower convex ring seal and the upper convex ring seal, when subjected to internal pressure changes, especially high pressure, the sealing ring seal can be supported more reliably, avoiding the sealing lip from squeezing into the gap between the shock absorber cylinder seal and the shock absorber piston seal, thus improving the durability of the sealing function.

[0012] The action of the outer and inner convex ring seals can reduce the resistance of the piston seal of the shock absorber to move up and down, ensuring the reliability of the seal and extending the durability of the seal. The action of the inner and outer small convex seals further improves the reliability of the seal.

[0013] Hydrogenated nitrile rubber has good resistance to oil, high and low temperatures and weathering, which can effectively ensure the reliability and durability of the sealing ring and sealing components.

[0014] The development of this product guided by the finite element method has low implementation costs, short R&D cycle, and reliable product function. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the front sectional view of the assembled structure of this utility model;

[0019] Figure 5 This is the assembly simulation deformation cloud map of this utility model.

[0020] In the diagram: 1. Sealing ring body; 2. Shock absorber cylinder body; 3. Shock absorber piston; 4. Lower convex ring; 5. Outer convex ring; 6. Upper convex ring; 7. Inner convex ring; 8. Inner small protrusion; 9. Outer small protrusion. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figure 1-5 A smart driving shock absorber seal based on the finite element method includes a sealing ring body 1, a shock absorber cylinder body 2 and a shock absorber piston 3. The sealing ring body 1 is located inside the groove of the shock absorber piston 3. It also includes an outer convex ring 5 that is interference-fitted with the inner wall of the shock absorber piston 3 and an inner convex ring 7 that is interference-fitted with the outer wall of the shock absorber cylinder body 2.

[0023] The inner wall of the inner convex ring 7 is provided with an inner small protrusion 8, and the outer wall of the outer convex ring 5 is provided with an outer small protrusion 9;

[0024] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top of the sealing ring body 1 is provided with an upper convex ring 6, and the bottom of the sealing ring body 1 is provided with a lower convex ring 4. In use, after the sealing ring body 1 is assembled with the shock absorber piston 3 and the shock absorber cylinder 2, the shock absorber piston 3 and the shock absorber cylinder 2 form a certain radial gap on the upper and lower sides respectively. When subjected to hydraulic pressure, the upper convex ring 6 and the lower convex ring 4 of the sealing ring body 1 are pressed against the wall of the shock absorber piston 3 to support the sealing ring body 1 and protect the outer sealing convex ring 5 of the sealing ring body 1 from being squeezed into the upper gap, thereby improving the durability of the sealing function.

[0025] Specifically, such as Figure 3 and Figure 4 As shown, the inner wall of the sealing ring 1 is provided with an inner convex ring 7, and the outer wall of the sealing ring 1 is provided with an outer convex ring 5. In use, the outer convex ring 5 and the inner convex ring 7 of the sealing ring 1 are pressed tightly against the wall surface of the shock absorber piston 3 and the wall surface of the shock absorber cylinder 2 to form a sealing function. Through the outer convex ring 5 and the inner convex ring 7, the compressed volume is reduced, thereby reducing the compression reaction force. During the up and down movement of the shock absorber piston 3, a smaller frictional resistance is formed. The small frictional resistance not only reduces the heat generated by friction during the up and down movement, but also reduces the deformation of the sealing ring 1 caused by friction, thereby ensuring the reliability and durability of the sealing function.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, the outer small protrusions 9 are evenly distributed on the outer wall of the outer convex ring 5, and the inner small protrusions 8 are evenly distributed on the inner wall of the inner convex ring 7. When in use, the outer small protrusions 9 and the inner small protrusions 8 are in close contact with the wall surface of the shock absorber piston 3 and the wall surface of the shock absorber cylinder 2, respectively, so that the gradient change of the contact pressure is large, thereby further ensuring the reliability of the sealing function.

[0027] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the sealing ring 1, lower convex ring 4, outer convex ring 5, upper convex ring 6 and inner convex ring 7 are all made of hydrogenated nitrile rubber. When in use, hydrogenated nitrile rubber has good oil resistance, good high and low temperature resistance and weather resistance. The sealing ring 1 made of hydrogenated nitrile rubber is economical in manufacturing cost and reliably ensures the sealing function.

[0028] Specifically, such as Figure 5 As shown, the sealing ring 1 uses the finite element method to optimize the ring features and dimensions. When in use, the sealing ring 1 uses the finite element method, and the deformation cloud diagram intuitively displays the deformation distribution state, further guiding the design, reducing the investment of verification experimental resources, shortening the R&D cycle, and ensuring the integrity and reliability of the design function.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sealing component for a smart driving shock absorber based on the finite element method, comprising a sealing ring body (1), a shock absorber cylinder body (2), and a shock absorber piston (3), wherein the sealing ring body (1) is located inside the groove of the shock absorber piston (3), characterized in that: It also includes an outer convex ring (5) that is interference-fitted with the inner wall of the shock absorber piston (3) and an inner convex ring (7) that is interference-fitted with the outer wall of the shock absorber cylinder (2); The inner wall of the inner convex ring (7) is provided with an inner small protrusion (8), and the outer wall of the outer convex ring (5) is provided with an outer small protrusion (9).

2. The intelligent driving shock absorber seal based on the finite element method according to claim 1, characterized in that: The sealing ring body (1) has an upper protruding ring (6) at its top end and a lower protruding ring (4) at its bottom end.

3. The intelligent driving shock absorber seal based on the finite element method according to claim 1, characterized in that: The inner wall of the sealing ring body (1) is provided with an inner convex ring (7), and the outer wall of the sealing ring body (1) is provided with an outer convex ring (5).

4. The intelligent driving shock absorber seal based on the finite element method according to claim 1, characterized in that: The outer small protrusions (9) are evenly distributed on the outer wall of the outer convex ring (5), and the inner small protrusions (8) are evenly distributed on the inner wall of the inner convex ring (7).

5. The intelligent driving shock absorber seal based on the finite element method according to claim 1, characterized in that: The sealing ring body (1), lower convex ring (4), outer convex ring (5), upper convex ring (6) and inner convex ring (7) are all made of hydrogenated nitrile rubber.

6. The intelligent driving shock absorber seal based on the finite element method according to claim 1, characterized in that: The sealing ring (1) was optimized in terms of its features and dimensions using the finite element method.

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