Flat wire spring

Abstract

The utility model belongs to the technical field of springs, provides a spring which is stressed by multiple arcs, resistant to fatigue, long in service life and capable of saving use cost, and particularly relates to a flat wire spring. The spring mainly comprises a first bending section, a second bending section, a third bending section, a first spring arm and a second spring arm. According to the utility model, the end parts of the first bending section, the second bending section and the third bending section are semi-circular and are used for dispersing stress and avoiding material fatigue and fracture caused by stress concentration, and the semi-circular end parts are easier to process compared with sharp or right-angled end parts, so that the complexity and the cost in the manufacturing process can be reduced, and the manufacturing cost is reduced. In addition, the second spring arm is longer than the first spring arm, larger rebound deformation can be provided under the same load, load distribution can be optimized, the working efficiency of the spring is improved, damage caused by stress is reduced, and therefore maintenance and replacement cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of springs and provides a spring which is capable of bearing multiple arc forces, is fatigue-resistant, has a long service life and saves use costs, and particularly relates to a flat wire spring. Background Art

[0002] Flat wire springs are usually manufactured by processing spring steel or other elastic materials into a flat shape. This design enables the spring to provide a larger load capacity and a larger deflection range when compressed or stretched. Compared with traditional round wire springs, flat wire springs perform better in applications where space is limited because they are lower in height and can effectively save space. The technology of flat wire springs is constantly evolving. With the advancement of materials science and manufacturing processes, their performance and application range are also continuously expanding. Modern flat wire spring design not only focuses on load capacity and elasticity, but also emphasizes service life and cost reduction. The utility model aims to provide a spring design scheme with multi-arc force, fatigue resistance, long service life and cost-saving. Utility Model Content

[0003] The technical problem to be solved by the utility model is: how to obtain a spring which is capable of bearing multiple arc forces, is fatigue-resistant, has a long service life and saves use cost.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A flat wire spring includes a spring body, which is formed by bending a whole piece of steel plate into multiple sections. The spring body includes a first bending section, a second bending section, and a third bending section. The bending angle of the first bending section is 32 degrees, the bending angle of the second bending section is 29 degrees, and the bending angle of the third bending section is 43 degrees.

[0006] In some embodiments, optionally, the spring body further includes a first spring arm and a second spring arm, and the first spring arm, the second spring arm and the spring body are configured as an integral structure.

[0007] In some embodiments, in order to provide a greater rebound deformation under the same load, the length of the second spring arm is greater than that of the first spring arm.

[0008] In some embodiments, optionally, the thickness δ of the spring body is 1 to 3 mm.

[0009] In some embodiments, in order to reduce displacement during the bending process, the end of the first bending segment and the end of the third bending segment are on the same horizontal line.

[0010] In some embodiments, in order to reduce stress concentration, the ends of the first bending segment, the second bending segment, and the third bending segment are all semicircular.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the semicircular arrangement of the ends of the first, second, and third bent sections helps to disperse stress, avoid fatigue and fracture of the material due to stress concentration, and thus improve the durability and reliability of the spring. In addition, the semicircular ends are easier to process than sharp or right-angled ends, which can reduce the complexity and cost of the manufacturing process.

[0012] The utility model provides a larger rebound deformation under the same load by setting the second spring arm longer than the first spring arm, which helps to optimize load distribution, improve the working efficiency of the spring, reduce damage caused by stress, and thus reduce maintenance and replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a front structural plan view of the present invention.

[0015] In the figure: 100, spring body; 1, first spring arm; 2, second spring arm; 3, first bending section; 4, second bending section; 5, third bending section. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example 1

[0018] like Figures 1 and 2 As shown, a flat wire spring includes a spring body, which is formed by bending a whole piece of steel plate into multiple sections. The spring body includes a first bending section, a second bending section, and a third bending section. The bending angle of the first bending section is 32 degrees, the bending angle of the second bending section is 29 degrees, and the bending angle of the third bending section is 43 degrees.

[0019] Specifically, because the welding or splicing points are reduced, the stability and durability of the spring are improved. These points are usually potential weaknesses. By reducing the connection points, the overall strength and fatigue resistance of the spring can be improved, thereby extending its service life. The design of different bending angles can optimize the mechanical properties of the spring, so that the spring can maintain good performance under different working conditions. By precisely controlling the bending angle, the stiffness and deformation of the spring can be adjusted to meet specific application requirements.

[0020] In this embodiment, the spring body further includes a first spring arm and a second spring arm, and the first spring arm, the second spring arm and the spring body are configured as an integral structure;

[0021] Specifically, the integrated structure can reduce assembly costs and potential failure points, improving overall reliability. This design simplifies the manufacturing process, reduces assembly costs, and improves the stability and durability of the spring due to the reduction in connection points.

[0022] In this embodiment, the length of the second spring arm is greater than the length of the first spring arm;

[0023] Specifically, a greater rebound deformation is provided under the same load, thereby improving the energy absorption capacity of the spring, so that the spring can provide a greater deformation under the action of the same force, and is more effective in applications requiring greater elastic deformation.

[0024] In this embodiment, the thickness δ of the spring body is 1 to 3 mm.

[0025] In this embodiment, the end of the first bending section and the end of the third bending section are on the same horizontal line;

[0026] Specifically, it helps to reduce displacement during the bending process and ensure accurate forming of the spring, which helps to improve the manufacturing accuracy of the spring and reduce errors and material waste during the manufacturing process.

[0027] In this embodiment, the ends of the first bending section, the second bending section, and the third bending section are all semicircular;

[0028] Specifically, the semicircular end portion helps to reduce stress concentration and improve the fatigue resistance of the spring. By reducing stress concentration points, the service life of the spring can be extended and damage caused by fatigue can be reduced.

[0029] Working Principle: The flat wire spring of this utility model can be used in the suspension system of an automobile as a shock-absorbing spring. When the automobile is driving on an uneven road, the wheels will move up and down due to the bumps of the road. The compression and expansion of the flat wire spring absorbs these shocks, reducing the vibration transmitted to the vehicle body and providing a more comfortable ride.

[0030] When the wheel moves downward, the spring is compressed, storing energy. Because the second spring arm is longer, it can provide a greater amount of deflection, which means that the spring can absorb more impact energy.

[0031] When the wheel moves upward, the spring extends, releasing the stored energy and helping the wheel return to its original position;

[0032] The multi-section bending design and different bending angles of the spring make the force distribution of the spring more uniform during compression and extension, reduce local stress concentration, and improve the durability and reliability of the spring;

[0033] The semicircular end design of the spring helps to disperse stress and reduce fatigue fracture caused by stress concentration;

[0034] In summary, the flat wire spring of the present invention provides an innovative solution and has broad market application prospects.

[0035] It should be noted that the parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

[0036] In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "set," and "provided with" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent will not depart from the scope of the technical solution of the present invention.

Claims

1. A flat wire spring, characterized in that: It includes a spring main body, which is formed by bending a whole steel plate into multiple sections. The spring main body includes a first bending section, a second bending section and a third bending section. The bending angle of the first bending section is 32 degrees, the bending angle of the second bending section is 29 degrees, and the bending angle of the third bending section is 43 degrees.

2. The flat wire spring according to claim 1, wherein: The spring body further includes a first spring arm and a second spring arm, and the first spring arm, the second spring arm and the spring body are configured as an integral structure.

3. The flat wire spring according to claim 2, wherein: The length of the second spring arm is greater than that of the first spring arm.

4. The flat wire spring according to claim 1, wherein: The thickness δ of the spring body is 1 to 3 mm.

5. The flat wire spring according to claim 1, wherein: An end portion of the first bending section and an end portion of the third bending section are located on the same horizontal line.

6. The flat wire spring according to claim 1, wherein: Ends of the first bending section, the second bending section and the third bending section are all semicircular.

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