Automatic guidance tractor

The present invention discloses an automatic navigation tractor, includes a vehicle body, a front wheel, two rear wheels, the tow hook and a battery, and the left and right front side of the vehicle body are provided an ultrasonic sensor, is also provided with a numerical control apparatus on the vehicle body and the gyroscope , the steering wheel and drive wheel unity composite, the composite wheel driven by a drive motor reducer assembly mounted within the drive wheel, and the large gear mounted on the driving wheels of the front wheel supporting the following composite connector, mounting the composite before the above steering wheel supporting motor reducer gear assembly driven by the sub-wheel steering drive. Tractor of the present invention is characterized by high precision steering, steering space is small, compact, high-rigidity, automatic driving along a path consisting of obstacle avoidance, the position and attitude positioning and automatic steering angle correction, high level of automation.