装配式凸轮轴滚花连接机理及连接强度研究

The shave-joining mechanism and joint intensity research of assembling camshaft

装配式凸轮轴与传统凸轮轴相比具有重量轻、加工成本低、材料利用合理等优点。是新型的凸轮轴制造技术, 具有广泛的发展空间。而其连接方法是装配式凸轮轴制造的关键技术。本文基于相异材料的咬合连接理论, 提出了滚花式塑性变形连接机理, 对不同材料、尺寸的滚花式凸轮轴静连接强度及疲劳强度进行了实验研究, 同时分析了滚花连接的不同连接状况以及凸轮压装张紧应力。

Compared with the traditional assembling camshaft,this assembling camshaft have the advantages of lighter weight,lower machining cost,better utilization of materials,etc.It is a new technology in camshaft production,with a huge developing prospective.It’s connecting methods are the key technology in assembling camshaft production.Grounding on occlusive joint theories of dissimilar materials,this paper puts forward shave-joining plastic deformation mechanism.Progressed experimental research about whist joint intensity and fatigue intensity of different material and size shave-joining camshaft,at the same time analyzed the diverse joint status of shave-joining as well as stretch tighten stress of cam pressing pack.