Weight reduction method for plate spring with second-class stiffness, and plate spring assembly
A leaf spring and lightweight technology, applied in the production and manufacturing of auto parts, can solve problems such as low strength and easy delamination, and achieve the effects of reducing contact stress, eliminating noise, and improving ride comfort
Inactive Publication Date: 2019-05-28
ZHUZHOU TIMES NEW MATERIALS TECH
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Problems solved by technology
Braking and lateral force and moment, due to the low strength of other directions other than the main direction of the composite fiber, delamination problems are prone to occur during use
Method used
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[0028] The present invention will be further described below in conjunction with specific embodiments with reference to the accompanying drawings.
[0029] Such as Figure 3a , Figure 3b , Figure 4 , Figure 5 As shown, a leaf spring assembly includes a main spring leaf spring 1 (the first leaf spring of the main spring), a composite spring 2 of the main spring (the second leaf spring of the main spring), a secondary spring 3 of the composite material, Rubber buffer block 4, limit clamp 5 (fiber clamp) and rubber friction plate 6. The rubber buffer block includes a rubber buffer block bottom plate 41 and damping rubber 42 ; the rubber friction plate includes a rubber friction plate bottom plate 61 and wear-resistant rubber 62 . Among the three leaf springs (main spring leaf spring, main spring composite material spring, composite material secondary spring), there are specially made metal or Non-metal backing plates (including middle backing plate 1, middle backing plate...
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The invention discloses a weight reduction method for a plate spring with second-class stiffness, and a plate spring assembly. The plate spring assembly comprises a main spring, a rubber friction sheet, rubber buffer blocks, a limit clamp, a nonmetal backing plate, and a composite material auxiliary spring connected below the main spring, wherein the rubber buffer blocks are connected to the uppersurfaces of the two ends of the composite material auxiliary spring through bolts and adhesives; and the main spring comprises a main spring steel plate spring and a main spring composite material spring connected below the main spring steel plate spring. According to the weight reduction method for the plate spring with the second-class stiffness, the structure of the main spring and the auxiliary spring is adopted, the auxiliary spring is arranged below the main spring, the main spring adopts two metal composite material composite plate springs, a main spring composite material spring is connected below the main spring steel plate spring, and the auxiliary spring adopts a single composite material plate spring, so that reduction for the plate spring with the second-class stiffness is realized. Compared with an existing automobile steel plate spring, the plate spring with the second-class stiffness has obvious advantages, achieves higher riding comfort, and has more than twice the life.
Description
technical field [0001] The invention relates to the technical field of production and manufacture of auto parts. Background technique [0002] With the emergence of the greenhouse effect and the global energy crisis, automobile lightweight has undoubtedly become an important measure to reduce greenhouse gas emissions and energy consumption. Automobile leaf spring With the invention of automobile and the development of automobile technology, the material and technology of leaf spring have been continuously developed. The tensile strength of the material has reached more than 1300Mpa. The structure has changed from multi-leaf spring to less leaf spring, realizing the lightweight of leaf spring. The weight of the spring assembly is still extremely cumbersome, and has a great space for weight reduction, which has become a research hotspot for scholars at home and abroad. As an important means of light weight, it is to replace the original low specific strength materials and ado...
Claims
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IPC IPC(8): F16F3/10
Inventor 李建林刘波肖罗喜徐波王遵
Owner ZHUZHOU TIMES NEW MATERIALS TECH