Follow-up wheel set device

The utility model discloses a follow-up wheel set device which comprises a base, a rotating seat, a steering driving unit and a follow-up pulley assembly, the rotating seat is rotationally connected with the base, the rotating seat rotates around a vertical rotating axis relative to the base, and a driven gear coaxial with the rotating axis is fixedly installed on the rotating seat; the steering driving unit is installed on the base, a driving gear is arranged at the output end of the steering driving unit, the driving gear is in meshing transmission with the driven gear, and the follow-up pulley assembly is installed on the rotating base. The driven gear drives the driven pulley assembly to rotate through the rotating seat, so that active steering is achieved, and the steering precision can be improved through meshing transmission of the driven gear and the driving gear. 本实用新型公开了一种随动轮组装置，其包括基座、转动座、转向驱动单元和随动滑轮组件，转动座与基座转动连接，转动座相对基座绕竖直的转动轴线转动，转动座固定安装有与转动轴线同轴设置的从动齿轮；转向驱动单元安装于基座上，转向驱动单元的输出端设置有主动齿轮，主动齿轮与从动齿轮啮合传动，随