Universal rubber crawler chassis

The invention discloses a universal rubber track chassis which comprises a chassis girder welding part, a swing arm mounting frame, a rubber track, a rubber track, a rubber track and a rubber track, and is characterized in that the side wall of the chassis girder welding part is provided with a swing arm mounting frame; the upper limiting bearing supports are arranged on the side walls, on the two sides of the swing arm installation frame, of the chassis girder welding-on part. The thrust wheel large swing arm is rotationally mounted on the swing arm mounting frame through a swing arm shaft; the lower limiting bearing bracket is arranged on the outer wall of the large swing arm of the thrust wheel; the damping column is arranged between the upper limiting bearing bracket and the lower limiting bearing bracket; the thrust wheel small swing arm is rotationally mounted on the thrust wheel large swing arm; the thrust wheel is rotationally mounted on the thrust wheel small swing arm through a thrust wheel shaft; a