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Rigidity changeable plate spring structure

A leaf spring and variable stiffness technology, applied in the field of automobile leaf spring series assembly, can solve problems such as complex structure, and achieve the effects of reducing pollution, weight and structural complexity

Inactive Publication Date: 2017-07-28
东风汽车悬架弹簧有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the leaf spring structure of this structure is divided into main spring and auxiliary spring, and the structure is relatively complicated.

Method used

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  • Rigidity changeable plate spring structure
  • Rigidity changeable plate spring structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 and Embodiment 2 are schematic diagrams of the structures of leaf springs with variable stiffness in a free state, respectively.

[0018] Such as figure 1 and figure 2 As shown, a variable stiffness plate spring structure, which includes a half-length reed 1, a gasket 2, a full-length reed 3, a central bolt 4, a central nut 5 and a buffer block 6; a half-length reed 1 and a full-length spring Each piece 3 has a straight segment structure, and there are bolt holes on the straight segment structure, which are connected together by the central bolt 4 and the central nut 5; the gasket 2 is located between the half-length reed 1 and the full-length reed 3, which can Prevent the direct contact between half-length reed 1 and full-length reed 3, reduce the risk of contact stress fatigue; buffer block 6 is located at the non-rolled ear end of full-length reed 3, and buffer half-length reed 1 and full-length reed 3 work at the same time When the vibration generate...

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PUM

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Abstract

The invention provides a rigidity changeable plate spring structure. The rigidity changeable plate spring structure comprises an overall length spring piece, one end of the overall length spring piece is upwards bent to be provided with a first spring eye, the other end of the overall length spring piece is upwards bent or downwards bent, and a buffering cushion is arranged at the other end of the overall length spring piece. The middle of the overall length spring piece is a first straight segment, the first straight segment is provided with a center bolt hole, and a half-length spring piece is fixed to the first straight segment through a center bolt and a nut. One end of the half-length spring piece is a second straight segment, and the other end of the half-length spring piece is upwards bent to be provided with a second spring eye. The first straight segment and the second straight segment are fixedly connected through a center bolt and a nut. A gasket is arranged between the first straight segment of the overall length spring piece and the second straight segment of the half-length spring piece. According to the rigidity changeable plate spring structure, the overall length spring piece and the half-length spring piece are combined together, a main spring and an auxiliary spring are formed, the plate spring structure with a simple structure is formed, the rigidity changing characteristic is achieved, the mass of the plate spring assembly is reduced, and light weight is achieved.

Description

technical field [0001] The invention relates to a series assembly of leaf springs for automobiles, in particular to a leaf spring structure with variable stiffness and light weight. Background technique [0002] When the load changes greatly, such as when the car is unloaded or fully loaded, if the car uses conventional linear elastic leaf springs, it is difficult to ensure that the car can get good ride comfort under various loads, so when designing the leaf spring suspension , often using two-stage rigidity compound leaf springs or gradient stiffness leaf springs to obtain nonlinear characteristics. [0003] Patent CN 104696403 A discloses a compound spring structure with variable stiffness and equal frequency bias, which has better variable stiffness characteristics. However, the leaf spring structure of this structure is divided into a main spring and an auxiliary spring, and the structure is relatively complicated. Contents of the invention [0004] In order to redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/20F16F1/22F16F1/26
CPCF16F1/20F16F1/22F16F1/26
Inventor 王海庆石朝阳何云江李俊申回春孙艳新
Owner 东风汽车悬架弹簧有限公司