The invention discloses a semitrailer steering device. The semitrailer steering device comprises axles, steering wheel compositions and a driving system, wherein the steering wheel compositions can be driven by the driving system to steer around pin shafts; the driving system comprises a support seat and two steering driving oil cylinders; the front parts of the support seats are fixedly arranged in the middle of the axle on the headmost side; two hinging points are arranged at the rear part of the support seat and respectively hinged to the output ends of the steering driving oil cylinders; the fixing end of each steering driving oil cylinder is hinged to one end of a steering arm; the other end of each steering arm is arranged on the corresponding steering wheel composition; each steering wheel composition is fixedly connected with a steering seat extending inwards; and the adjacent steering seats in the same lengthwise direction are connected via longitudinal pull rods. Once the axles of a semitrailer deflect, the axles at the rear side can be adjusted by the longitudinal pull rods so long as the steering driving oil cylinders are operated to adjust the axle on the headmost side, so that the semitrailer steering device can well adapt to the situation that the semitrailer transporting blower towers runs on curvy mountain roads.
Semitrailer steering device
2016-01-13
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |