Lightweight automobile suspension spring

By designing lightweight automotive suspension springs and employing a gradually changing diameter structure and surface treatment technology, the problem of excessive suspension spring weight has been solved, improving vehicle handling stability and safety while extending service life.

CN223953137UActive Publication Date: 2026-02-27YANGZHOU SHENGLIN SPRING HARDWARE CO LTD
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Patent Information

Application Number
CN202520777931.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-02-27
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

The existing suspension springs are too heavy, which leads to increased body roll moment, reduced handling stability, slow suspension response, and poor wheel-to-ground contact, affecting braking and acceleration performance.

Method used

A lightweight automotive suspension spring is designed by using a structure of first to third spring coils with gradually decreasing diameters and fourth to seventh spring coils with gradually increasing diameters, combined with a spring winding machine for integral molding, and an anti-slip film and ceramic film are applied to the outer surface to improve stability and wear resistance.

Benefits of technology

To achieve lightweight suspension springs, improve vehicle handling stability and safety, extend service life, and reduce energy consumption and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lightweight automobile suspension spring, belongs to the technical field of automobile suspension springs, and solves the problem that the suspension spring is too heavy. Comprising a first spring ring, a second spring ring is arranged on the outer surface of the first spring ring, a third spring ring is arranged on the outer surface of the second spring ring, a fourth spring ring is arranged on the outer surface of the third spring ring, and a fifth spring ring is arranged on the outer surface of the fourth spring ring. A sixth spring ring is arranged on the outer surface of the fifth spring ring, and a seventh spring ring is arranged on the outer surface of the sixth spring ring. Through the unique diameter change design of the spring, namely, the middle is thin and the two ends are thick, material use is reduced, the weight of the spring is effectively reduced, light weight of an automobile is achieved, energy consumption is reduced, stability of connection between the two ends and a suspension system is guaranteed, a damping system can run reliably, and driving safety is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile suspension spring, especially relates to a light weight automobile suspension spring. BACKGROUND

[0002] As an important means of transportation in modern society, the performance, comfort and safety of automobiles are of great concern. The suspension system is a key component of an automobile, and the automobile suspension spring is an indispensable element in the suspension system. The automobile suspension spring mainly plays a role in buffering, shock absorption and support. It is usually made of high-elasticity and high-strength materials, such as spring steel and high-strength alloy steel. During the driving of an automobile, the bumps and unevenness of the road will generate impact forces, which will be transmitted to the chassis and body of the automobile. The automobile suspension spring can effectively absorb and alleviate these impact forces, reducing the vibration and shaking of the vehicle body, and making the vehicle drive more smoothly.

[0003] When the suspension spring is too heavy, it will increase the roll moment of the vehicle body, making the roll of the vehicle body more obvious and reducing the handling stability of the vehicle. In the case of emergency avoidance or high-speed cornering, this increases the risk of vehicle loss of control. At the same time, the heavy spring will slow down the response speed of the suspension system, making it unable to react to road bumps in time and effectively, resulting in poor adhesion of the wheels to the ground and reducing the tire grip, further affecting the braking and acceleration performance of the vehicle. Therefore, there is a problem of heavy suspension spring. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the above problems existing in the prior art, the utility model provides a light weight automobile suspension spring.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: a light weight automobile suspension spring, comprising a first spring ring, the outer surface of the first spring ring is provided with a second spring ring, the outer surface of the second spring ring is provided with a third spring ring, the outer surface of the third spring ring is provided with a fourth spring ring, the outer surface of the fourth spring ring is provided with a fifth spring ring, the outer surface of the fifth spring ring is provided with a sixth spring ring, and the outer surface of the sixth spring ring is provided with a seventh spring ring.

[0008] For a preferred scheme of the light weight automobile suspension spring, the diameters of the first spring ring to the fourth spring ring gradually decrease.

[0009] By adopting the technical scheme, the diameters of the first spring ring, the second spring ring and the third spring ring gradually decrease, thereby facilitating reduction of the weight of the shock-absorbing spring.

[0010] As a preferred scheme of the light-weight automobile suspension spring, the diameters of the fourth spring ring to the seventh spring ring gradually increase.

[0011] By adopting the technical scheme, the diameters of the first spring ring and the seventh spring ring are relatively large, thereby facilitating installation.

[0012] As a preferred scheme of the light-weight automobile suspension spring, the first spring ring, the second spring ring, the third spring ring, the fourth spring ring, the fifth spring ring, the sixth spring ring and the seventh spring ring are integrally formed by using a spring winding machine.

[0013] By adopting the technical scheme, the integrally formed shock-absorbing spring has increased overall strength.

[0014] As a preferred scheme of the light-weight automobile suspension spring, the outer surfaces of the first spring ring and the seventh spring ring are provided with anti-skid films.

[0015] By adopting the technical scheme, the anti-skid films can increase the friction between the two ends of the spring and the connecting components, prevent the spring from sliding or shifting during operation, ensure stable operation of the shock-absorbing system, and improve driving safety.

[0016] As a preferred scheme of the light-weight automobile suspension spring, the second spring ring, the third spring ring, the fourth spring ring, the fifth spring ring and the sixth spring ring are provided with ceramic films.

[0017] By adopting the technical scheme, the ceramic films form a layer of film with high hardness, good wear resistance and corrosion resistance, which not only improves the hardness of the surface of the spring, effectively resists external friction and wear, but also enhances the corrosion resistance of the spring, prevents rusting in harsh environments such as humidity and salt spray, and prolongs the service life of the spring.

[0018] (Three) beneficial effects

[0019] The light-weight automobile suspension spring has the following beneficial effects:

[0020] 1. Through the unique diameter change design of the spring, i.e. thin in the middle and thick at both ends, the material usage is reduced, the weight of the spring is effectively reduced, the light weight of the automobile is realized, the energy consumption is reduced, the stability of the connection of both ends with the suspension system is ensured, the shock absorption system can reliably operate, and the driving safety is improved.

[0021] 2. The anti-skid film prevents the sliding displacement of both ends of the spring, reduces the damage caused by abnormal sliding, the ceramic film improves the surface hardness, wear resistance and corrosion resistance of the spring, can effectively resist external friction, wear and erosion of harsh environment, prolongs the service life of the spring, and reduces the maintenance and replacement cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is the overall structure schematic diagram of the present application;

[0024] Figure 2 is the front cross-sectional structure schematic diagram of the present application;

[0025] Figure 3 is Figure 2 the enlarged structure schematic diagram of A in the middle;

[0026] Figure 4 is Figure 2 the enlarged structure schematic diagram of B in the middle.

[0027] In the figure, 1 is a first spring ring; 2 is a second spring ring; 3 is a third spring ring; 4 is a fourth spring ring; 5 is a fifth spring ring; 6 is a sixth spring ring; 7 is a seventh spring ring; 8 is a ceramic film; 9 is an anti-skid film. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0029] Embodiment 1

[0030] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4For the first embodiment of the utility model, the embodiment provides a light-weight automobile suspension spring, which comprises a first spring ring 1, the outer surface of the first spring ring 1 is provided with a second spring ring 2, the outer surface of the second spring ring 2 is provided with a third spring ring 3, the outer surface of the third spring ring 3 is provided with a fourth spring ring 4, the outer surface of the fourth spring ring 4 is provided with a fifth spring ring 5, the outer surface of the fifth spring ring 5 is provided with a sixth spring ring 6, and the outer surface of the sixth spring ring 6 is provided with a seventh spring ring 7.

[0031] The specific spring is designed with a unique diameter change, that is, the middle is thin and the two ends are thick, which reduces material use, effectively reduces the weight of the spring, realizes the light weight of the automobile, reduces energy consumption, ensures the stability of the connection of the two ends with the suspension system, enables the shock absorption system to reliably operate and improves driving safety.

[0032] Further, the heating ventilation plate 305 in the simulation mechanism 3 can generate hot air to preheat the spring, and the temperature sensor 308 can monitor the temperature in real time, so that the use of the spring in different temperature environments can be simulated, and the spring can be more accurately tested in the actual complex environment by combining the extrusion detection of the hydraulic telescopic rod 202 on the spring.

[0033] Embodiment 2

[0034] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 For the second embodiment of the utility model, the outer surfaces of the first spring ring 1 and the seventh spring ring 7 are both provided with an antiskid film 9, and the antiskid film 9 adopts a rubber coating.

[0035] Specifically, the second spring ring 2, the third spring ring 3, the fourth spring ring 4, the fifth spring ring 5 and the sixth spring ring 6 are all provided with a ceramic film 8, the spring after heat treatment is surface cleaned and pretreated to remove oil stains, impurities and the like on the surface, and then the spring is placed in the electrolyte of the micro-arc oxidation equipment, a micro-arc oxidation reaction is carried out on the surface of the spring by applying a specific voltage and current, and the surface of the shock absorption spring is formed with the ceramic film 8.

[0036] Further, the antiskid film 9 prevents the two ends of the spring from sliding and shifting, reduces damage caused by abnormal sliding, the ceramic film 8 improves the surface hardness, wear resistance and corrosion resistance of the spring, can effectively resist external friction, wear and erosion of harsh environments, prolongs the service life of the spring and reduces maintenance and replacement costs.

[0037] Working principle: the light weight car suspension spring is composed of the first to seventh spring rings 7, which is integrally formed by a coiling spring machine, and the spring diameter gradually decreases from both ends to the middle and then gradually increases from the middle to both ends. When the suspension system is impacted by the road surface during driving, the spring will elastically deform to buffer the vibration. The thinner middle part reduces the weight while ensuring the strength, and the thicker end part is stably connected with other parts of the suspension system. The anti-skid film 9 on the outer surface of the first spring ring 1 and the seventh spring ring 7 increases the friction with the connecting parts to prevent the spring from sliding and shifting. The ceramic film 8 of the second to sixth spring rings 6 improves the surface hardness, wear resistance and corrosion resistance of the spring, ensuring the normal work of the spring in different environments.

[0038] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between such entities or actions.

Claims

1. A lightweight automotive suspension spring comprising a first spring coil (1), characterized in that: The outer surface of the first spring ring (1) is provided with a second spring ring (2), the outer surface of the second spring ring (2) is provided with a third spring ring (3), the outer surface of the third spring ring (3) is provided with a fourth spring ring (4), the outer surface of the fourth spring ring (4) is provided with a fifth spring ring (5), the outer surface of the fifth spring ring (5) is provided with a sixth spring ring (6), and the outer surface of the sixth spring ring (6) is provided with a seventh spring ring (7).

2. The light-weight automotive suspension spring of claim 1, wherein: The diameters of the first spring ring (1) to the fourth spring ring (4) gradually decrease.

3. The light-weight automotive suspension spring of claim 2, wherein: The diameters of the fourth spring ring (4) to the seventh spring ring (7) gradually increase.

4. The light-weight automotive suspension spring of claim 3, wherein: The first spring ring (1), the second spring ring (2), the third spring ring (3), the fourth spring ring (4), the fifth spring ring (5), the sixth spring ring (6) and the seventh spring ring (7) are integrally formed by a coiling spring machine.

5. The lightweight automotive suspension spring of claim 4, wherein: The outer surfaces of the first spring ring (1) and the seventh spring ring (7) are both provided with an anti-skid film (9).

6. The lightweight automotive suspension spring of claim 1, wherein: The second spring ring (2), the third spring ring (3), the fourth spring ring (4), the fifth spring ring (5) and the sixth spring ring (6) are all provided with a ceramic film (8).