Device for detecting frictional wear characteristics of magnetorheological fluid under magnetic field

Abstract

The invention relates to a device for detecting frictional wear characteristics of magnetorheological fluid under a magnetic field. In a magnetic induction coil of a magnetic generating module of the device, a copper enamelled wire is used as a lead, magnetic conduction low-carbon steel is used as a winding shaft, and an aluminum product is used as a baffle plate, so magnetic loss is reduced effectively, the stability of the operation of the magnetic field is improved, and a detection platform is provided for the evaluation of the frictional wear characteristics of the magnetorheological fluid under the magnetic field. In the device for the frictional wear characteristics of the magnetorheological fluid under the magnetic field, an induction magnetic field which is perpendicular to the motion direction of a friction pair can be formed at a contact point of the friction pair according to test requirements, the variable regulation of the magnetic field can also be realized by changing a value of current inputted to the coil, and the regulation can be performed continuously, so that the condition is provided for inspecting the frictional wear characteristics of the magnetorheological fluid systematically.

Description

technical field [0001] The invention belongs to the technical field of magnetorheological material detection, and in particular relates to a detection device for the friction and wear characteristics of magnetorheological fluid. Background technique [0002] At present, multi-phase system magnetorheological materials with excellent magnetorheological properties have been widely used in construction machinery. For this multi-phase system, since the suspension phases that generate magnetic effects are mostly hard magnetic particles, these The friction and wear properties of particles will seriously affect the service life of magnetorheological devices. In addition, magnetorheological materials have been successfully applied in the field of polishing technology. When polishing workpieces, it is often necessary to continuously adjust the magnitude of the magnetic field to implement precise control of magnetorheological materials to achieve perfect processing effects. The fricti...

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Problems solved by technology

Therefore, the experimental results obtained under the condition of no magnetic field are one-sided and cannot fully reflect the tribological properties of magnetorheological materials.

[0004] Second, the correlation between experiments and engineering applications is poor

Since the application of magnetic fluid in engineering often needs to be under the action of a magnetic field to exert the magnetorheological effect, the correlation between the experimental results and engineering applications is very poor when simply investigating the tribological properties of magnetic fluid without a magnetic field

[0005] The third is that the existing off-site detection devices have relatively large defects

Due to the high price of bar magnets, the overall cost of the magnetic field generating device is high

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