旋耕机湿地弯刀的摩擦磨损性能试验研究  

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

作　　者：邱浩[1] 翁道纛 董霖[1] 陶景青[1] 张庆功[1] 

机构地区：[1]西华大学机械工程学院西华大学流体及动力机械教育部重点实验室,四川成都610039

出　　处：《润滑与密封》2016年第8期53-56,61,共5页Lubrication Engineering

基　　金：四川省教育厅省级大学生创新创业训练计划项目(201510623064);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;流体及动力机械教育部重点实验室研究基金项目(西华大学JYBFXYQ-1;szjj2016-010)

摘　　要：利用HSR-2M高速式往复摩擦磨损试验机,研究湿态条件下,湿地弯刀表面粗糙度、往复速度和法向载荷等对旋耕机湿地弯刀摩擦因数和磨损量的影响,并通过磨痕形貌分析其磨损机制。试验结果表明:摩擦因数和磨损量随着旋耕机湿地弯刀表面粗糙度的增大而增大;磨损量随法向载荷的增大而增大,而随往复速度的增大先减小后增大;摩擦表面温度随着法向载荷和相对运动速度的增大而增大;湿态条件下湿地弯刀的磨损机制以磨粒磨损为主,局部有点蚀现象出现。Based on HSR-2M high-speed reciprocating friction and wear tester, the effects of surtace rougnness of rotary tiller wet-land curved blade, reciprocating velocity, and normal force on the friction and wear properties of wet-land curved blade were studied under wet condition, and the wear mechanism was analyzed based on the worn surface morphologies of wet-land curved blade.The experimental results show that the friction coefficient and wear volume are increased with the increasing of roughness of wet-land curved blade.The wear volume loss is increased with the increasing of normal force, and decreased firstly and then increased with the increasing of reciprocating velocity.The temperature of frictional surface is in- creased with the increasing of normal force and reciprocating velocity. Under wet frictional condition, the wear mechanisms of wet-land curved blade are mainly characterized with abrasive wear, and the pitting corrosion appears in the part of the wear surface.

关 键 词：旋耕机湿地弯刀 摩擦磨损 表面粗糙度 往复速度 法向载荷 

分 类 号：TH117[机械工程—机械设计及理论]