Track chassis is a kind of walking system widely used in various engineering vehicles, agricultural machinery. The track chassis has excellent off-road performance and high traction, and can work stably under complex ground conditions such as mud, sand and snow, which is suitable for a variety of working environments. În același timp, due to the large contact area between the track and the ground, the pressure on the ground is small, which can effectively reduce the damage to the land, especially suitable for agricultural and forestry use.