Electric system for gap test platform of three-degree-of-freedom vehicle wheel

The utility model discloses an electric system for a gap test platform of a three-degree-of-freedom vehicle wheel, aiming to provide the electric system which is simple in structure and capable of realizing automatic limiting and returning to zero, and two control ways by hands and a computer, and is matched with the gap test platform of the three-degree-of-freedom vehicle wheel. The electric system comprises a main circuit A and a control circuit B, wherein the main circuit A is composed of a three-phase quick-break switch, a pump motor, a thermal relay, a pump rotary switch, an alternative-current contactor coil, a transformer, a bridge-type rectifying circuit, a filter capacitor, a light-emitting diode, an illumination lamp and a switch; the control circuit B which is composed of a main instruction control circuit a and an auxiliary instruction control circuit b; the main instruction control circuit a is composed of a handheld controller, a computer, a control relay coil and a diode; and the auxiliary inst