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Piston structure of magnetorheological damper

A magneto-rheological shock absorber and shock absorber technology, which is applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problem of affecting the service life of shock absorbers, wear of shock absorbers, and increased energy consumption and other problems, to achieve the effect of continuously variable damping force, reducing impact force, and low manufacturing cost

Inactive Publication Date: 2015-09-30
WUHU XINGZHONG IMPORT & EXPORT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing piston structure is usually a hydraulic valve type. When working, the piston structure moves left and right or up and down inside the shock absorber. This method not only increases energy consumption, but also causes wear and damage inside the shock absorber, affecting the shock absorber. The service life of the vibrator as a whole

Method used

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  • Piston structure of magnetorheological damper
  • Piston structure of magnetorheological damper

Examples

Experimental program
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Embodiment

[0025] The magneto-rheological shock absorber uses electromagnetic response, based on the signal input from the monitoring wheel and body motion sensor, to make real-time response to the road conditions and driving environment. This control system provides fast, smooth , The continuously variable damping force reduces the vibration of the vehicle body and increases the adhesion between the wheels and various road surfaces. It also buffers the recoil force on the wheels, thereby maximizing the stability of the vehicle and increasing the safety of driving. sex and ride comfort.

[0026] Magneto-rheological damping liquid is a magnetic particle mixture composed of tiny particles with high magnetic permeability and low hysteresis and non-magnetic liquid (silicon oil or mineral oil). It shows the characteristics of low viscosity, but under the action of strong magnetic field, it will show the characteristics of high viscosity and low fluidity liquid. The strength of magnetism is de...

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Abstract

The invention discloses a piston structure of a magnetorheological damper. The piston structure of the magnetorheological damper substantially comprises a piston rod and a piston assembly, wherein a piston rod fixed cavity is arranged on the rear end of the piston assembly, the piston rod is detachably connected with the piston assembly after being inserted into the piston rod fixed cavity, the piston assembly comprises a piston body and a coil protective shell, a coil is wound on the piston body, the coil protective shell is sleeved on the outer side of the piston body, a coil is connected with a control system which is arranged outside a damper through a signal wire, a fixed mechanism is arranged on the rear end of the piston rod, and the piston structure is fixed in the damper through the fixed mechanism. The piston structure can not generate sport wear and damage in the damper, can prolong the whole service lie of the piston structure of the magnetorheological damper. A magnetic field of the coil changes flow characteristics of magnetorheological damping liquid, enables the magnetorheological damping liquid to generate damping force with rapid reaction and strong controllability, and can adjust the damping force in stepless.

Description

technical field [0001] The invention relates to a component of a shock absorber, in particular to a piston structure of a magneto-rheological shock absorber. Background technique [0002] At present, traditional passive suspension shock absorbers are widely used in domestic automobiles. The damping coefficient and spring stiffness of this shock absorber are fixed and cannot play a good damping effect; while active suspensions can theoretically obtain An ideal vibration isolation system achieves the ideal suspension control goal, but it consumes a lot of energy, costs high, and has a complex structure; the cylindrical magneto-rheological shock absorber in the semi-active suspension effectively solves the problem of passive suspension. The contradiction between comfort and stability, while the control effect is also close to the performance of active suspension, and the structure is simple, the price is relatively cheap, and it does not need to provide additional energy and ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/53F16F9/32
CPCF16F9/53F16F9/3214
Inventor 杨贵祥
Owner WUHU XINGZHONG IMPORT & EXPORT
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