鼓式制动器促动变形特性的试验研究  

Experimental Research on Characteristics of Drum Brake Actuation Deformation

作　　者：张京明[1] 王宣锋[1] 梁迎春[1] 黄朝胜[2] 宋宝玉[1] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001 [2]中国第一汽车集团公司,长春130011

出　　处：《中国机械工程》2007年第13期1633-1637,共5页China Mechanical Engineering

摘　　要：以制动气室推出力-行程试验数据为基础,建立了气室推杆力与行程的计算模型,根据试验数据提出了鼓式制动器的促动变形特性的计算公式,用试验方法解决了制动器推杆总行程过大的生产实际问题。研究结果表明,气室推杆总行程过大的主要影响因素为制动蹄与制动鼓之间的间隙、摩擦片的弹性模量、凸轮轴的扭转变形。Based on the test data of air chamber pushrod force-stroke, a computation model about air chamber pushrod force-stroke was established, and calculation formula of actuation deformation characteristics of the drum brake was proposed according to test data. The practical issue of drum brake with oversized overall stroke was resolved by experiments, and it indicates that major effect factors of air chamber overall stroke, which are the drum-shoe clearance, the elastic modulus of lining, the torsion deflection of cam shaft.

关 键 词：促动变形特性 气室行程 蹄鼓间隙 弹性模量 

分 类 号：U463.1[机械工程—车辆工程]