IT14G Integrated Toolcarrier and 914G Wheel Loader Steering System Caterpillar


General Information

Usage:

IT14G 1WN



图 1g01043066

辅助转向示意图

(1) 转向油缸。 (2) 转向和制动歧管阀。 (3) 制动器供油管。 (4) 辅助转向压力开关。 (5) 单向阀。 (6) 转向和制动泵。 (7) 液压油箱。 (8) 辅助转向泵。 (9) 单向阀。 (10) 计量泵。




图 2g01043070

914G 和 914G2 轮式装载机

IT14G 和 IT14G2 集成工具架的部件具有相同的位置。

(1) 转向油缸。 (2) 转向和制动歧管阀。 (4) 辅助转向压力开关。 (6) 转向和制动泵。 (7) 液压油箱。 (8) 辅助转向泵。 (9) 单向阀。 (10) 计量泵。

以下是转向系统的主要部件:

  • 液压油箱 (7)

  • 转向和制动泵 (6)

  • 计量泵 (10)

  • 转向油缸 (1)

  • 辅助转向泵 (8)

  • 转向和制动歧管阀 (2)

液压系统具有一个液压油箱。 液压油箱 (7) 位于机器右侧的驾驶室尾部。 液压油箱 (7) 为静液压驱动装置、机具系统、制动系统、转向系统和辅助转向系统供油。 辅助转向系统为附件。 一个油箱端口为机具泵和静液压泵供油。 转向和制动泵 (6) 由单独的油箱端口供油。 辅助转向泵 (8) 还由液压油箱底部的单独油箱端口供油。




图 3g00515874

液压泵

机具泵 (A) 。 转向和制动泵 (B) 。

该液压泵与静液压泵相连。 静液压泵与发动机飞轮壳相连。 液压泵为两段式齿轮泵。 机具段位于泵的驱动端。 转向和制动泵 (6) 位于泵盖端。 转向和制动泵 (6) 为转向系统供油。




图 4g00453125

914G 转向和制动歧管阀

油从转向和制动泵 (6) 流出。 油流过辅助转向阀 (5) (如果配备)和辅助转向压力开关 (4) (如果配备)。 辅助转向阀 (5) 和单向阀 (9) 可防止油流回油箱 (7) 。 油随后流向转向和制动歧管阀 (2) 。

转向和制动歧管阀位于机器左侧的驾驶室下方。 转向和制动歧管阀 (2) 共有三个出口。 油从一个出口流向计量泵 (10) 。 第二个出口将油送往蓄能器和制动阀。 没有制动时,油从制动阀流向液压油箱 (7) 。 第三个出口为来自计量泵 (10) 的信号管。

当方向盘不转动时,多数油流向制动阀。 方向盘转动时,油流向计量泵 (10) 。 计量泵 (10) 将油送往两个转向油缸 (1) 。 这部分油使得机器开始打弯。 全转向通过安装在机架上的橡胶转向挡块加以缓冲。

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