The invention discloses a self-powered type
magnetorheological damper. The self-powered type
magnetorheological damper comprises a power generation chamber, a damping chamber and a
piston rod, wherein the power generation chamber is welded on a damping chamber cylinder by a power generation chamber shell; a
ball bearing leading screw is formed by a screw rod part of the
piston rod as well as a nut and a
ball bearing positioned in the power generation chamber; a polish rod part of the
piston rod penetrates through a sealing part and extends into the damping chamber; a piston inside the damping chamber is fixedly connected with the
piston rod; the piston is wound with a coil and is led to the outside of the power generation chamber through an inner through hole of the
piston rod; the periphery of the nut is connected with a rotor; the periphery of a rotor is a
stator iron core; the
stator iron core is fixedly connected with the inner wall of the power generation chamber shell. When the
damper works, liquid in the damping chamber produces damping force through a damping channel, and the damping force is adjusted by the coil; a reciprocation motion of the
piston rod is turned into a rotation motion by the
ball bearing leading screw; the rotor rotates to ensure that a magnetic induction line is
cut by
stator winding to generate
electricity, so that recycling of energy is realized. The self-powered type
magnetorheological damper has a simple structure and has a small occupied space; under a premise of not influencing original damping performance of the
damper, the recycling of the energy is realized, and popularization and application of the
damper to vehicles are convenient.