根据大客车底盘车架的结构特点, 分析国内外底盘生产线采用的多种翻转装置及工况, 并介绍亚奔公司所采用的单头驱动链式翻转装置及其设计要点。关键词: 底盘　链式　翻转　约束　装配线Abstract: Based on the st ructure of large coach2chassis frame, a variety of reversible equipments on the chassis p roduct ion line at home and abroad are discussed and the single2end driving chains2type reversible equipments w h ich the company uses and their design key elements are also stated.Key words: Chassis, Chains2type, Turn, Const raint, A ssembly line