Test system of spindle-type magnetorheological fluid performance

Abstract

The invention relates to an instrument for measuring magnetorheological fluid performance, comprising a solenoid coil with magnetic shielding, an upper shaft, a lower shaft, a torque sensor, a Hall element and a quick response temperature sensor, wherein the torque sensor is used for measuring torque, the Hall element measures magnetic field strength, and the quick response temperature sensor measures real-time temperature; the top of the lower shaft is provided with a flat bottom blind hole used for holding magnetorheological fluid to be detected; the Hall element for measuring magnetic field strength and the quick response temperature sensor for measuring temperature are fixed in a hollow shaft on the bottom of the flat bottom blind hole; the lower shaft is connected with the torque sensor via a coupling and is fixed on a precision machine lifting platform; the upper shaft is connected with a transmission shaft via the coupling; the transmission shaft drives the upper shaft to rotate; and the upper shaft and the lower shaft are on the same axis. The device has even magnetic field distribution, high measuring precision, large adjustable R / h specific value range and small consumption of magnetorheological fluid.

Description

technical field [0001] The invention relates to a rotating shaft type magnetorheological fluid performance testing system. Background technique [0002] The rotating working part of the currently used magnetorheological fluid performance test system is generally a turntable structure. This kind of turntable test system usually adopts a turntable structure with upper and lower equal diameters. The rotation is driven by the disk shaft. Due to the large radius of the turntable, the magnetorheological fluid to be tested will easily overflow at a high speed; The consumption of liquid is large, and the ratio of the (rotation) radius of the turntable to the thickness (R / h) of the magnetorheological fluid is difficult to increase. Contents of the invention [0003] In order to overcome the problems of the complex structure of the existing magnetorheological fluid performance testing system, the inhomogeneity of the magnetic field passing through the magnetorheological fluid to be...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of the complex structure of the existing magnetorheological fluid performance testing system, the inhomogeneity of the magnetic field passing through the magnetorheological fluid to be tested, the small adjustable range of the R / h ratio, and the large consumption of the magnetorheological fluid, the present invention Provide a magnetorheological fluid performance testing system with simple structure, convenient use, large R / h adjustable range, and low consumption of magnetorheological fluid

Images