Suspension magnetorheological damper and system

Abstract

The invention discloses a suspension type magneto-rheological damper and system. The damper comprises a damping bar and a magnetic field, the damping bar is made of magneto-rheological elastic materials, the magnetic field acts on the damping bar, the strength of the magnetic field can be adjusted, the upper end of the damping bar is capable of hanging a suspended component, and a connecting component used for connecting a device needing to be damped is arranged at the lower end of the damping bar. The damping bar made of the magneto-rheological elastic materials is adopted for forming the suspension type magneto-rheological damper, the overall structure is simple, the weight is low, the inertia is small, the purpose that the elasticity can be adjusted when the damper is suspended and used can be achieved by utilizing the characteristic of adjustable elasticity of the magneto-rheological elastic damping materials, the elastic coefficient can be adjusted according to different vibration and different weight of a suspended device, the high-frequency and small-amplitude vibration can be effectively and specifically damped, the suspension type magneto-rheological damper is suitable for the detection and production operation occasions where the requirement for precision is high and the suspension using is needed, and detecting precision and operation stability are guaranteed.

Description

Technical field [0001] The invention relates to a magnetorheological damping device, in particular to a suspension magnetorheological damper and a system thereof which can ensure that the measuring instrument is not disturbed by external vibration. Background technique [0002] Magnetorheological damper is a kind of intelligent damping device. The existing rod-type magnetorheological damper mostly adopts piston and cylinder structure. Most of the pistons are cylinders made of magnetic conductive metal. The viscosity of the magnetorheological medium between the cylinders is used to adjust the output damping force; this type of damper has a complex structure and requires high accuracy on the piston and cylinder. The magnetorheological damper with a cylindrical piston structure is due to the piston’s The mass is large and the gap between the piston and the cylinder is small, so it cannot be used for suspension and other eccentric stress applications; and it has large motion inertia ...

AI Technical Summary

Problems solved by technology

[0002] The magneto-rheological damper is an intelligent damping device. The existing rod-type magneto-rheological damper mostly adopts a piston and cylinder structure, and the piston is mostly a cylinder made of magnetically conductive metal. The viscosity of the magnetorheological medium between the cylinders is used to adjust the output damping force; this type of damper has a complex structure and requires high precision for the piston and the cylinder. The magnetorheological damper with a cylindrical piston structure is due to the The mass is large and the gap between the piston and the cylinder is small, so it cannot be used in occasions such as suspension and other eccentric forces; and it has a large motion inertia, so it is difficult to apply to the damping and vibration reduction requirements of high-frequency and small-amplitude vibration occasions ; Especially for high-precision measuring instruments and other occasions that require high precision, it is necessary to eliminate the interference caused by high-frequency vibration, otherwise it will affect its detection results and operating status; especially, for the magnetic flow of the piston structure For the variable damper, magnetorheological fluid is used as the medium, which has high sealing requirements in use, installation and manufacture, high production cost and poor versatility

Images