从曲轴上拆下链条驱动轮。

Remove chain drive wheel from crankshaft.

然后驱动轮按需转动，同时实现平衡和推进。

The drive wheels then rotate as necessary, to achieve both balance and propulsion.

两个半轴齿轮的加速和减速从而实现了两个驱动轮之间的差速。

This speeding up and slowing down of the side gears allows differential speeds at the drive wheels.

采用后驱动轮实现转向，操作更加方便，特别适用于在狭小的地段进行行间农耕作业时应用。

The utility model adopts a rear driving wheel to realize steering with convenient operation, and is especially suitable for the plowing operation among lines in narrow and small sections.