It is discovered that the revolving direction of hydraulic motor decided revolving direction of the dozer, and the revolving speed of hydraulic motor decided revolving radius of the dozer.

• 由此导出转向液压马达的旋转方向决定了推土机转向的方向,转向液压马达的旋转速度决定了推土机转向半径的大小,同时说明了差速转向机构具备转向轻便、转弯半径小、不需维护与调整的优点。