IT14G Integrated Toolcarrier and 914G Wheel Loader Steering System Caterpillar


Gear Pump (Steering and Brake Circuit)

Usage:

IT14G 1WN



图 1g01053274

转向和制动泵的位置

升起机罩。 打开蓄电池箱。 拆下检修面板。

该液压泵为双段式齿轮泵。 该液压泵由机具泵以及转向和制动泵组成。 该液压泵与静液压泵相连。 静液压泵与发动机飞轮壳的尾部相连。 转向和制动泵是接近检修面板的那一段。




图 2g00424028

转向和制动泵剖面图。

(1) 驱动齿轮。 (2) 低压油。 (3) 惰齿轮。 (4) 高压油。

当从驱动端观察驱动齿轮的转向时,驱动齿轮 (1) 逆时针转动。 惰齿轮 (3) 与驱动齿轮 (1) 相啮合。 惰齿轮顺时针转动。 两齿轮的转动产生局部真空。 随着齿轮轮齿的分离,在泵进口处产生局部真空。 从而将油从液压油箱中吸出。 油进入泵的腔室 (2) 中。 两齿轮的转动使低压油从腔室 (2) 沿泵壳内部四周流向腔室 (4) 。 随着轮齿在出口处的啮合,将油压出齿轮泵。

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