旋耕机旱地刀的摩擦磨损性能试验研究  

Experimental Research on Friction and Wear Properties of Rotary Tiller Dry-land Blade

作　　者：陶景青[1] 董霖[1] 钟雯[1] 杨杰[1] 刘志伟[1] 刘雄[1] 

机构地区：[1]西华大学机械工程学院,四川成都610039

出　　处：《润滑与密封》2015年第11期80-83,共4页Lubrication Engineering

基　　金：四川省教育厅重点科研项目(13ZA0021);2013年国家人社部留学回国人员科技活动择优资助项目;西华大学人才培养与引进项目(R0920203)

摘　　要：利用HSR-2M高速式往复摩擦磨损试验机,试验干态条件下,往复速度、法向载荷和往复行程等对旋耕机旱地刀的摩擦因数和磨损量的影响,通过磨痕形貌分析其磨损机制。试验结果表明:摩擦因数均随往复速度和法向载荷的增大而减小;磨损量则随往复速度的增大先减小后增大,且随法向载荷和往复行程的增大而增大;干态条件下,磨损机制主要以磨粒磨损为主。Based on HSR-2M high-speed reciprocating friction and wear tester, the effects of reciprocating velocity, normal force and reciprocating sliding distance on the friction and wear properties of rotary tiller dry-land blade were studied under dry condition, and the wear mechanism was analysed by the worn surface morphologies.The experimental results show that the friction coefficient decreases with the increasing of reciprocating velocities and normal forces.With the increasing of reciprocating velocities, the wear volume loss firstly decreases and then increases, but with the increasing of normal forces and reciprocating sliding distances, the wear volume loss increases. Under dry condition, the wear mechanisms are mainly abrasive wear.The experimental results are valuable in the suitable evaluation of the friction and wear properties of rotary tiller dry-land blade.

关 键 词：旋耕机旱地刀 摩擦磨损 往复速度 法向载荷 往复行程 

分 类 号：TH117[机械工程—机械设计及理论]