Research on swing steering mode of four-wheel self-propelled agricultural chassis based on small plots

The turning radius and ground width of the chassis are important factors affecting the efficiency of four-wheel chassis on small lands.A four-wheel self-propelled chassis suitable for small plots is designed.Through controlling the rotation of the wheel, the chassis actively rotates the front drive axle around the steering device, which can drive the chassis to rotate at any angle.ADAMS simulation is established to simulate the turning track model of the swing chassis.When the chassis adopts a wheel diameter of 800 mm and a wheel width of 100 mm, the most compact wheel track-to-wheelbase ratio of the chassis meeting the steering requirements is 1:1.6.The physical model verifies that the chassis meets the requirements of small block steering.