Magneto-rheological shock absorber for motor vehicle

Abstract

The invention discloses a magneto-rheological shock absorber for a motor vehicle. The magneto-rheological shock absorber comprises a work cylinder. A lower mounting ring is mounted at the bottom end of the work cylinder through welding, an oil storage chamber is formed in the inner wall of the work cylinder, a through hole is formed between the bottom end of the work cylinder and the bottom end ofthe oil storage chamber, a piston assembly is mounted in the work cylinder, the two ends of the outer side of the work cylinder are sleeved with containing seats through glue, and the middle of the outer side of the work cylinder is sleeved with a rubber sleeve through the glue. A wear-proof coating is arranged on the outer surface of the work cylinder. The magneto-rheological shock absorber is scientific and reasonable in structure and safe and convenient to use; and the piston assembly is arranged, magneto-rheological fluid enters adjusting grooves to extrude elastic bags, the elastic bagsare extruded into flow guide holes through adjusting holes, the sizes of the flow guide holes can be adjusted, the flow guide holes can be adjusted according to vibration in the actual driving processof the vehicle and the movement range of a piston, the hardness of the shock absorber can be adjusted, and the shock absorber is higher in applicability and better in shock absorption effect.

Description

technical field [0001] The invention relates to the technical field of shock absorbers, in particular to a magneto-rheological shock absorber for motor vehicles. Background technique [0002] Magneto-rheological shock absorbers use electromagnetic responses to respond to road conditions and driving environments in real time based on input information from monitoring body and wheel motion sensors. Magneto-rheological fluid is a suspension of magnetic soft particles. After the electromagnetic coil in the shock absorber piston is energized, the magnetic field of the coil will change the rheological characteristics of the magnetorheological fluid, so that there is no electromechanical control valve and a simple mechanical device to produce damping with rapid response and strong controllability The magneto-rheological shock absorber has the characteristics of high damping force adjustable multiple, easy realization of computer variable damping real-time control, compact structure...

AI Technical Summary

Problems solved by technology

[0003] However, when the magneto-rheological shock absorber is used, there are the following disadvantages: when in use, when the current inside the electromagnetic coil is small and cannot generate a large magnetic field to affect the magnetorheological fluid, it will cause the shock absorber to The shock absorption effect is reduced, and when the vibration is large, it cannot be damped by the shock absorber, which makes the vehicle bumpy and affects the riding experience; moreover, when in use, the outside of the limit tube will be contaminated with dust, resulting in In the process of shock absorption, there is a jamming phenomenon, and it cannot be shock-absorbed; when the shock absorber is placed, it will cause the shock absorber to directly contact the ground, which will cause damage to the shock absorber and affect the normal operation of the shock absorber. Use; when the shock absorber is working, it will do reciprocating piston movement, which will generate a lot of heat and affect the service life of the shock absorber; in addition, the outer surface of the working cylinder is not provided with a protective coating, its aging resistance and durability The grinding performance is relatively poor, which shortens its service life

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