SINGLE-POINT SUSPENSION DEVICE

摘要

A single-point suspension device comprises: a first axle assembly (206) and a second axle assembly (203) for tire installation; a central shaft platform (208) fixedly connected with a frame and a central shaft (205); a plurality of shear springs (202) arranged on two side plates of the central shaft platform (208) and fixedly connected with the central shaft; a plurality of variable-rigidity springs arranged on the lower side of a top plate of the central shaft platform (208) and fixedly connected with the central shaft (205); a first balancing beam structure (204) and a second balancing beam structure (207) which are connected with two ends of the central shaft (205). Two ends of the first balancing beam structure (204) are fixedly connected with the first axle assembly (206) and the second axle assembly (203) respectively, and two ends of the second balancing beam structure (207) are fixedly connected with the first axle assembly (206) and the second axle assembly (203) respectively. The damping effect of the single-point suspension device is improved, and the impact force acting on the central shaft bearing seat and the central shaft platform is buffered effectively, and the complicated manufacture process of board spring is avoided and the self-weight is reduced.