摘要
针对某离合器失效返回件的分析,研究得知该离合器的失效原因为传动带的弯曲变形引起离合器升程的衰退,进而加剧摩擦片的磨损,从而导致离合器难以传递动力的外在失效表现。通过离合器结构的优化,将单片传动带设计成双片传动带,借助Marc有限元软件的分析得出两种结构的传动带最大应力数值分别为1045 MPa与830.3 MPa,低于材料的屈服强度1300 MPa,然而双片传动带的应力相比于单片传动带降低了20.5%,从而增强了离合器上传动带的承压能力,并且对双片传动带的离合器结构进行了实际验证,在整车厂得到广泛的应用。
A failed clutch is analyzed in this paper, the results show that the failure of clutch is caused by the bending deformation of the leaf spring which leads to the decline of lift for clutch, it further aggravates the wear of the friction plate,and it leads to the external failure performance of the clutch which is difficult to transmit power. The single leaf spring is designed to double leaf spring by optimizing the structure of the clutch, it is found that the maximum stress values of the two structures are 1045 MPa and 830.3 MPa respectively with the aid of the finite element analysis software Marc, and they are below the yield strength of the material 1300 MPa. However, the stress of double leaf spring is reduced by 20.5% compared to that of a single leaf spring. Therefore, it enhances the bearing capacity of the clutch, the clutch structure of double leaf spring is verified, and it is widely used in the whole vehicle factory.
出处
《机械工程师》
2017年第10期74-75,78,共3页
Mechanical Engineer
关键词
离合器
结构优化
传动带
有限元分析
clutch
optimization of structure
leaf spring
finite element analysis
