Four-wheel-drive riding type omnidirectional piling car driven by double-support differential steering wheels

The utility model relates to a four-wheel drive riding type omnidirectional piling car driven by double-support differential steering wheels, which adopts an arrangement form of a four-point support forward-moving piling car, and each fulcrum adopts a set of double-support inter-wheel differential steering wheels, so that the wheel pressure can be effectively dispersed; the walking and steering of the differential steering wheel between the double supporting wheels are driven by an alternating-current variable-frequency asynchronous motor; the alternating-current variable-frequency asynchronous motor drives the single wheels on the two sides to roll through the mechanical differential mechanism, and the single wheels on the two sides of the mechanical differential mechanism rotate oppositely during steering, so that slippage with the ground can be eliminated, and a ground coating is effectively protected. According to the technical scheme, the omni-directional forward-moving type piling car can be operated by