Building robot chassis

The invention relates to a construction robot chassis, which belongs to construction machinery. The technical solution adopted in the present invention is: the chassis of the construction robot, including the chassis, the four corners of the chassis are provided with moving wheels that move in the left and right directions, and the feature is that the lower part of the chassis is provided with a front double-wheel wheel set and a rear wheel that can be lifted simultaneously. The direction wheel, the double-wheel wheel set and the direction wheel move in the front and rear directions, and the double-wheel wheel set is coaxially driven. The motor of the wheel set can rotate the direction of the steering wheel. The steering shaft of the steering wheel is equipped with a torsion spring. After the steering wheel is subjected to the deflection force, the direction is deflected and the torsion spring is deformed. After the force on the steering wheel disappears, the torsion spring restores and drives the steering wheel to recover. In the original direction, there are main frame fixing positions on both sides of the chassis.