在设计手扶拖拉机时,有一些设计理论可参照四轮拖拉机,但也有一些不能参照。因为手扶拖拉机在结构布置上和工作方式上有其自己的特点。例如:只有驱动轮而没有导向轮;对于兼用型手扶拖拉机既要考虑犁耕,又要考虑旋耕。所以在功率计算、总体力学分析、重心布置等问题上必须按照其自己的特点来加以处理。但目前还未见到一套完整的手扶拖拉机设计理论,本文仅就国外杂志上和王 When designing a walking tractor, there are some design theories that reference four-wheel tractors, but some can not be consulted. Because walking tractors in the layout and working methods have their own characteristics. For example: only the driving wheel without the guide wheel; for the dual-use tractor must consider plowing, but also consider rotary farming. So in the power calculation, the overall mechanical analysis, the center of gravity layout and other issues must be handled according to its own characteristics. However, a complete set of tractor design theory has not yet been seen yet.