Piston type impact buffering device based on magnetorheological elastomer particles

The invention discloses a piston type impact buffering device based on magnetorheological elastomer particles. The device comprises a cylinder body, a piston rod, a guide sleeve, an end cover, a piston, the magnetorheological elastomer particles, a control circuit and a controller, wherein the inner section of the cylinder body is circular; the end cover is arranged at one end of the cylinder body; the guide sleeve is arranged at the other end of the cylinder body; a through hole is arranged in the axis of the guide sleeve; the piston rod stretches into the cylinder body through the through hole in the axis of the guide sleeve; a through hole channel is arranged in the axis of the piston rod to arrange the control circuit; the tail end of the piston rod is connected to the piston; the piston is formed by two groups of excitation coils and an iron core; the outer diameter of the piston is smaller than the inner diameter of the cylinder body; and the magnetorheological elastomer particles are filled in the cyli