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目前生产的手扶拖拉机转向机构均采用牙嵌离合器,转向时切断一侧驱动轮的动力,使两个驱动轮的牵引力不相等来实现转向。这种转向方式的优点是结构简单,转弯半径小,但转向不平顺。要发展小型四轮拖拉机、四轮载货车、翻斗车和叉车等变型产品,必须改用差速器。为了适应518-12型手扶拖拉机发展变型的需要,我们研制了圆柱型内齿行星式差速器。配置差速器的手扶拖拉机传动系统如图1示。这种差
The current production of walking tractor steering mechanism are used claw clutch, turn off the power of the driving wheel on one side, so that the traction of two driving wheels are not equal to achieve steering. The advantage of this steering method is the simple structure, small turning radius, but the steering is not smooth. To develop small four-wheel tractors, four-wheeled trucks, dump trucks and forklift variants and other products, you must switch to differential. In order to meet the needs of the development of 518-12-type tractor tractor, we developed a cylindrical type internal gear planetary differential. Differential gear walking tractor transmission system shown in Figure 1. This difference