Electric shearing type cutting ring auxiliary accessory

The invention relates to an electric shearing type cutting ring auxiliary accessory. According to the electric shearing type cutting ring auxiliary accessory, an electric shearing technology is applied to a standard cutting ring soil sampler, and therefore, soil resistance in a cutting ring soil sampling process is reduced, and the original property of a soil sample is guaranteed. The electric shearing type cutting ring auxiliary accessory comprises a fixed cutter module, a movable cutter module and a motor driving device; the fixed cutter module comprises two parts, namely a fixed cutter ringand a fixed cutter head; the movable cutter module comprises a movable cutter ring and a movable cutter head; and the motor driving device comprises a motor, an eccentric wheel and a spring. With theelectric shearing type cutting ring auxiliary accessory adopted, a soil shearing force can be decreased; sampling efficiency can be improved; the fidelity effect of the sample can be enhanced; the movable cutter and the fixed