活塞弹簧式气制动阀动特性的研究  

Study on the Dynamic Characteristic of Piston Spring Pneumatic Brake Valve

作　　者：马恩[1] 

机构地区：[1]南阳理工学院机电工程系,河南南阳473066

出　　处：《农机化研究》2011年第5期218-221,共4页Journal of Agricultural Mechanization Research

基　　金：河南省教育厅自然科学研究项目(2007460019)

摘　　要：对我国拖拉机挂车气制动系主要控制元件—活塞弹簧式气制动阀动特性进行了理论分析和试验研究,采用适当改变活塞弹簧式气制动阀内部参数的方法,提高了其动态特性性能指标和拖拉机挂车机组的制动性能。试验表明,活塞弹簧式气制动阀的动特性不仅与平衡弹簧刚度有关,还与进气阀口内径和阀门硬度有关。Theoretical analysis and experiments have been made on the dynamic characteristic of piston spring pneumatic brake valve that is one of the main control components for tractor-trailer pneumatic braking system.The optimization of dynamic characteristic parameter of brake valve was obtained by its interior parameters that are changed properly.The brake properties for vehicles pneumatic brake system are increased.Brake properties of vehicles pneumatic brake system are affected directly by dynamic properties of brake valve.The results show the dynamic properties of piston spring pneumatic brake valve are not only affected by equilibrium spring stiffness,but also by intake valve inner diameter and valve seat hardness.

关 键 词：气制动系 拖拉机—挂车机组 气制动阀 动特性 

分 类 号：S219.032.3[农业科学—农业机械化工程]