Fatigue-resistant anti-fracture suspension spiral spring

Abstract

The utility model belongs to the technical field of buffering accessories, and particularly relates to an anti-fatigue anti-fracture suspension spiral spring which comprises a spring body and a support, the support is sleeved with the spring body, the outer wall of the spring body is fixedly connected with a hollow pipe, and an inner cavity of the hollow pipe is fixedly connected with a plurality of reinforcing ribs. The distance between the positions of the spring body is sequentially decreased from the middle to the two ends. The two ends of the spring body are of horizontal structures. And melt is filled between the spring main body and the hollow pipe. And the reinforcing ribs are distributed in an annular array. After the spring body is heated, the hollow pipe is arranged on the spring body in a sleeving mode, melt is melted through the high temperature generated after the spring body is heated, the firmness between the spring body and the hollow pipe can be further improved when the spring body is curled, and by controlling the spiral distance of the spring body, the rigidity of the spring body can be improved, the stress degree can be improved, and the service life of the spring body can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffer accessories, and specifically relates to a fatigue-resistant and fracture-resistant suspension coil spring. Background Art

[0002] Coil springs are a common type of suspension spring. Compared to leaf springs and other similar springs, coil springs are compact and occupy less space within the vehicle's suspension system, facilitating overall vehicle design. Coil springs are also relatively simple to manufacture, resulting in relatively low material and manufacturing costs. Therefore, they are widely used in the suspension systems of various economy and mid-range to high-end vehicles.

[0003] However, the existing coil springs are prone to metal fatigue in long-term use, which reduces the elastic performance of the spring and significantly reduces the shock absorption effect on the vehicle. In particular, the springs are prone to breakage due to sudden and large bends, which not only affects the normal driving of the vehicle but also reduces the service life of the spring. Utility Model Content

[0004] The purpose of this invention is to provide a fatigue-resistant and fracture-resistant suspension coil spring, which can increase its stiffness and improve the stress level by controlling the spiral pitch of the spring body, thereby extending its service life.

[0005] The technical solutions adopted in this application are as follows:

[0006] A fatigue-resistant and fracture-resistant suspension coil spring comprises a spring body and a bracket. The spring body is sleeved on the bracket. A hollow tube is fixedly connected to the outer wall of the spring body. A plurality of reinforcing ribs are fixedly connected to the inner cavity of the hollow tube. The spacing between the spring body decreases from the middle to the two ends.

[0007] Both ends of the spring body are horizontal structures.

[0008] The space between the spring body and the hollow tube is filled with molten material.

[0009] The reinforcing ribs are distributed in a ring array.

[0010] The hollow tube is filled with filler.

[0011] The technical effects achieved by this utility model are:

[0012] The utility model discloses a fatigue-resistant and fracture-resistant suspension coil spring. The spring body, a bracket, a hollow tube, a reinforcing rib and a filling material cooperate with each other. After the spring body is heated, the hollow tube is sleeved on the spring body. The high temperature after the spring body is heated is used to melt the molten material. When the spring body is curled, the firmness between the two can be further increased. In addition, by controlling the spiral pitch of the spring body, its stiffness can be increased, the stress degree can be improved, and its service life can be extended. Description of the Drawings

[0013] Figure 1 is the overall three - dimensional view of the present practical embodiment;

[0014] Figure 2 is the three - dimensional view of the spring body of the present practical embodiment;

[0015] Figure 3 is the front view of the spring body of the present practical embodiment;

[0016] Figure 4 is the schematic cross - sectional structure view of the spring body of the present practical embodiment.

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Spring body; 2. Bracket; 3. Hollow tube; 4. Reinforcing rib; 5. Filler; 6. Melt. Detailed Embodiment

[0019] In order to make the purpose and advantages of the present utility clearer, the following takes embodiments as examples to specifically describe the present utility. It should be understood that the following text only describes one or several specific implementation manners of the present utility, and does not strictly limit the protection scope of the specific claims of the present utility.

[0020] As Figures 1 - 4 shown, a fatigue - resistant and fracture - proof suspension coil spring includes a spring body 1 and a bracket 2. The spring body 1 is sleeved on the bracket 2. An outer wall of the spring body 1 is fixedly connected with a hollow tube 3. A plurality of reinforcing ribs 4 are fixedly connected in a lumen of the hollow tube 3. The distance of the spring body 1 from the middle to both ends decreases in sequence.

[0021] As Figure 3 shown, the distance a of the spring body 1 is greater than the distance b, and end cut surfaces c of the spring body 1 are in a horizontal state; both ends of the spring body 1 are in a horizontal structure.

[0022] Specifically, by improving the distance of the spring body 1, the following advantages are achieved:

[0023] Increased stiffness: The coils at both ends are closer, which can improve the stiffness of both ends of the spring body 1, making it less likely to deform when subjected to force. This is very important for applications that need to bear large loads;

[0024] Improved performance: This design allows the spring body 1 to have better response characteristics when compressed or stretched, improving the overall performance of the spring body 1;

[0025] Reduced space: The close coil spacing can reduce the overall height or length of the spring body 1, making it more flexible to use in places with limited space;

[0026] Uniform force: The spiral pitch in the middle is larger, which helps the spring body 1 to distribute the force more evenly when applying the load, thus extending the service life of the spring body 1.

[0027] Avoid lateral offset: The relatively tight spiral pitch can reduce the risk of lateral offset of the spring body 1 during use, thus maintaining the stability of the device.

[0028] As Figure 4 shown, there is a molten material 6 filled between the spring body 1 and the hollow tube 3.

[0029] Among them, the molten material 6 is made of other materials such as aluminum alloy, tin alloy, low-melting-point aluminum alloy, magnesium alloy, etc.

[0030] As Figure 4 shown, the reinforcing ribs 4 are distributed in a circular array. It can increase the support strength of the hollow tube 3 and avoid the phenomenon of fracture of the spring body 1.

[0031] The hollow tube 3 is filled with a filler 5. The filler 5 is made of other metal materials such as copper powder, aluminum powder, nickel powder, titanium powder, etc., or it can also be filled with particles or plates according to actual needs, and no specific limitation is made in this solution.

[0032] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in this field without special description and limitation.

Claims

1. A fatigue-resistant and fracture-proof suspension coil spring, characterized in that: It includes a spring body (1) and a bracket (2). The spring body (1) is sleeved on the bracket (2). An outer wall of the spring body (1) is fixedly connected with a hollow tube (3). A plurality of reinforcing ribs (4) are fixedly connected in a lumen of the hollow tube (3). A distance from a middle to both ends of the spring body (1) decreases in sequence.

2. A fatigue-resistant and fracture-proof suspension coil spring according to claim 1, wherein: Both ends of the spring body (1) are horizontal structures.

3. A fatigue-resistant and fracture-proof suspension coil spring according to claim 1, characterized in that: A melt (6) is filled between the spring body (1) and the hollow tube (3).

4. A fatigue-resistant and fracture-proof suspension coil spring according to claim 1, characterized in that: The reinforcing ribs (4) are distributed in an annular array.

5. A fatigue-resistant and fracture-proof suspension coil spring according to claim 1, characterized in that: A filler (5) is filled in the hollow tube (3).

Images