651E and 657E Wheel Tractor-Scrapers Power Train Caterpillar


Solenoid Valve

Usage:

657E 6PR



图 1g00703433

铲运机变速箱的顶部

(1) 升档电磁阀

(2) 降档电磁阀

(3) 同步电磁阀

铲运机变速箱将自动换档。 铲运机变速箱将不能手动换档。 牵引机变速箱完成一次换档操作后,牵引机变速箱位置传感器会向牵引机变速箱控制发送一个电气信号。

牵引机变速箱控制会向铲运机变速箱控制发送一个电气信号。 铲运机变速箱控制会发送一个驱动升档电磁阀 (1) 或降档电磁阀 (2) 的信号。 随着铲运机变速箱旋转选档器滑阀移到下一速度档位置,铲运机变速箱位置传感器中的一个转子也会转动。 铲运机变速箱旋转选档器滑阀会转动,直到铲运机变速箱位置传感器送来的信号告知铲运机变速箱控制铲运机变速箱旋转选档器滑阀在正确的位置。

当铲运机变速箱位置传感器在正确的位置时,铲运机变速箱控制会阻止电流流到升档电磁阀 (1) 或降档电磁阀 (2) 。 电流现在会流到同步电磁阀 (3) 。 牵引机和铲运机变速箱现在在相同的速度档位置。 同步电磁阀 (3) 保持驱动,直到再需要进行换档。

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