The invention discloses a chassis with a four-wheel steering function. The chassis comprises a rear steering axle. The rear steering axle comprises a rear wheel steering drive axle and a rear wheel steering reversal mechanism. The rear wheel steering drive axle comprises an axle body, a left steering knuckle, a right steering knuckle, two steering knuckle arms, two trapezoid arms and a rear steering tie rod. The left steering knuckle and the right steering knuckle are arranged at the two ends of the axle body respectively. The two steering knuckle arms are fixed to the left steering knuckle and the right steering knuckle respectively. The two trapezoid arms are fixed to the left steering knuckle and the right steering knuckle respectively. The rear steering tie rod is connected with the two trapezoid arms. The left steering knuckle and the right steering knuckle are fixedly connected with hubs of two rear wheels respectively. The rear wheel steering reversal mechanism comprises a hydraulic reversal cylinder, a motor, a rear wheel steering machine, a steering rocker arm and a rear wheel steering pull rod. The motor, the rear wheel steering machine, the steering rocker arm and the rear wheel steering pull rod are sequentially connected. The steering knuckle arm connected with the rear wheel steering pull rod moves to drive the rear wheels to steer, and the other steering knuckle arm is connected with a piston rod of the hydraulic reversal cylinder. The chassis achieves the four-wheel steering function of a commercial vehicle and meanwhile is simple in structure and small in control difficulty.
Chassis with four-wheel steering function
2015-09-23
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Steering wheel calibration method of steering drive axle chassis four-wheel steering AGV
European Patent Office | 2023
|