A kind of shear type twin-barrel magneto-rheological shock absorber

Abstract

The invention discloses a shearing type double-cylinder magneto-rheological damper. The shearing type double-cylinder magneto-rheological damper comprises an upper shearing plate and a lower shearing plate. The upper shearing plate is connected with a vehicle frame. The lower shearing plate is connected with a vibrating wheel. A containing cavity defined by four face plates is arranged on the lower shearing plate. A top plate is arranged on the top of the containing cavity. An open groove is formed in the top of the top plate. The containing cavity is divided by the open groove into a left containing cavity body and a right containing cavity body. Two piston cylinders are arranged in the left containing cavity body and the right containing cavity body respectively. Each piston cylinder is filled with magneto-rheological fluid. An opening of each piston cylinder is sealed with a cylinder cover with a seal ring. The two ends of a double-head piston rod extend into the piston cylinders in the left containing cavity body and the right containing cavity body respectively. Magnetic coils are wound around the two ends of the double-head piston rod respectively. A connecting rod extends downwards from the middle of the upper shearing plate. The connecting rod is connected with the middle of the double-head piston rod. The upper shearing plate conducts movement in the longitudinal direction and the transverse direction on the plane relative to the lower shearing plate under the action of the connecting rod and the double-head piston rod. By the adoption of the shearing type double-cylinder magneto-rheological damper, a primary vibration damping area of a vibration roller is obtained, and damping can be adjusted according to needs.

Description

technical field [0001] The invention relates to the technical field of automobile vibration damping equipment, in particular, the invention relates to a shear type double-tube magneto-rheological vibration damper. Background technique [0002] When the magneto-rheological shock absorber is in working condition, the displacement is zero, the velocity is zero, the elastic force of the spring is just equal to the gravity of the frame, and the damping force is zero under the balance state of the steel wheel. When the vibrating steel wheel vibrates upwards from the equilibrium position, the speed of the steel wheel changes from maximum to minimum, and the exciting force is opposite to the speed, changing from small to large, and the steel wheel impacts the shock absorber with greater inertia. Through the adjustment of the magnetic field strength, the damping force becomes larger, and the spring force gradually increases with the increase of deformation. The spring and damping abs...

AI Technical Summary

Problems solved by technology

[0015] The existing technical solution (2) is a magneto-rheological-rubber combination, so it also has the above-mentioned other shortcomings in addition to "5) the damping is not adjustable" to a certain extent

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