301.5, 301.6, 301.7 CR, 301.8, and 302 CR Mini Hydraulic Excavator Machine System Caterpillar


General Information (Bucket System)

Usage:

301.8 H8X

铲斗液压系统

铲斗油缸用于开启和闭合铲斗。 当铲斗油缸连杆伸出时,铲斗将闭合。 当铲斗油缸连杆回缩时,铲斗将开启。

操作员使用操纵手柄移动铲斗时,将输入信号发送至机器电子控制模块 (ECM)。 ECM 根据操纵手柄的移动比例确定铲斗油缸的方向和速度。 ECM 将输出信号发送至铲斗电磁阀。 现在,允许主控制阀上的先导压力流经铲斗油缸电磁阀。 电磁阀使用先导油压来控制主控制阀中铲斗控制阀的运动。 铲斗控制阀滑阀进而控制流向铲斗油缸的高压油流。

铲斗系统部件包括:

  • 铲斗控制阀

  • 铲斗油缸

注: 请参阅本手册中的相应章节,了解更多信息。

Caterpillar Information System:

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