| 摘要 |
A hydraulic steering device of a wheel loader is provided to control steering speed by changing the length of a length adjusting cylinder installed between steering cylinders. A hydraulic steering device of a wheel loader comprises a steering pump(30), a pair of steering cylinders(20), a steering control valve(32), and a hydraulic unit. The steering pump supplies hydraulic pressure. The steering cylinders connect with a front body(A) with a rear body(B). The steering control valve controls direction of pressure oil supplied to the steering cylinder from the steering pump. The hydraulic unit controlling the interval between rods(21) of the steering cylinders includes guide blocks(51) and a length adjusting cylinder(53) The guide blocks are installed at the ends of the rods of the steering cylinders. The length adjusting cylinder interconnects two guide blocks. The length of the length control cylinder is changed to control steering speed. |
