1 DESCRIPTION 名称规格 护帮板face sprag 短杆short bar 长杆long bar 护帮千斤顶Face sprag ram 顶梁canopy 左立柱left leg 右立柱right leg 平衡千斤顶Stabilizing ram 掩护梁caving shield 连接头Joint 底座base 左前连杆left front linkage 后连杆rear link-bar 推移千斤顶Advancing ram Φ 推移杆Relay bar 销轴Axis pin 右挡板组件 right guard plate unit 右前连杆right front link-bar 左挡板组件 Left guarding plate unit 底座组件 Base Subassembly DESCRIPTION 名称规格 底座base 后连杆rear linkage 铰接轴Hinged pin 挡销Stopping pin 2 开口销cotter pin 前连杆front linkage 推移千斤顶Advancing ram 销轴Axis pin 推移挡块advancing stop block 推移杆relay bar 连接头Joint 抬底千斤顶Base-lifting ram 抬底顶架base-lifting frame 推杆固定销fixed pin for the relay bar U 型卡U-staple KJ10-32 立柱压板platen for legs 平垫圈plain washer 推移杆组件 Relay bar subassembly DESCRIPTION 名称规格 推移杆relay bar 销轴Axis pin 挡块stop block 开口销cotter pin 挡销Stopping pin 平垫圈plain washer 压盘p