JJ170/42-K 1 井架使用维护手册 JJ342402-00SM 宝鸡石油机械有限责任公司 I 目 录 1 用途.................................................................................................................................................................................1 2 技术参数.........................................................................................................................................................................1 3 结构说明.........................................................................................................................................................................1 3.1 井架主体特点........................................................................................................................................................1 3.2 二层平台................................................................................................................................................................2 3.3 起升装置..............................................................................................................................................................3 3.4 登梯助力机构........................................................................................................................................................3 3.5 套管台....................................................................................................................................................................4 3.6 大钳平衡重............................................................................................................................................................4 3.7 逃生装置................................................................................................................................................................5 4 井架安装.................................................................................................................................
