摘要
通过对轿车驻车制动开关工作原理和结构分析,设计了一种拉拔式操作方式轿车驻停开关。经过触点接触压力的计算,研究关键点有效的控制方法。对于具有双向通断功能的驻车制动开关,利用有限元方法模拟分析了其装配及操作期间的受力变形情况,分析了不同弹片预压量和操作按钮位置组合工况对微动开关静动态力学特性的影响;根据受力和几何条件等建立模型方程,并求解出弹片的应力分量、形变分量来验证弹片的性能。并在开关表面采用磁控溅射的方面涂镀耐磨涂层,从而保证产品的接触可靠性和使用寿命。
Through the analysis of the working principle and structure of car parking brake, a kind of pull-type operation is designed. Through the contact pressure calculation, the key point of effective control methods. For the parking brake with bidirectional on and off function, the finite element method is used to simulate and analyze the stress deformation during assembly and operation. This paper analyzes the effect of combination of different shrapnel preload and operation button position on dynamic mechanical properties. The model equation is established according to the force and geometric conditions. The stress components of the shrapnel, deformation components are solved to verify the performance of the shrapnel. The wear- resistant coating on the switch surface was coated by magnetron sputtering to ensure product contact reliability and service life.
作者
荆中华
王德山
JING Zhonghua WANG Deshan(School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China)
出处
《机械工程师》
2017年第8期53-56,共4页
Mechanical Engineer
基金
江苏省基础研究计划(自然科学基金)面上项目(BK20151220)
关键词
轿车驻停开关
机械力学性能
弹片
触点
car parking switch
mechanical properties
shrapnel
contact
