一、动臂与提升油缸连接系统的类型1.离轴支承系统提升油缸与动臂于 E 点铰接(图1),在上极限位置时,油缸仍向挖掘机轴线的外侧倾斜。在这种情况下,动臂摆角可达到90°。因此,对于一定的提升高度 H,能获得较大的挖掘深度 W_1。增大挖掘深度,可达到充分利用 1. Types of connection systems for the boom and the lift cylinder 1. The off-axis support system lifts the cylinder and the boom at the point E (Figure 1). In the upper limit position, the cylinder is still tilted to the outside of the excavator axis. In this case, the boom angle can reach 90°. Therefore, for a certain lifting height H, a greater depth of excavation W_1 can be obtained. Increase the depth of excavation to achieve full use