Vertical reciprocating friction-wear testing machine with magnetic shielding function

Abstract

The invention provides a vertical reciprocating friction-wear testing machine with a magnetic shielding function. The vertical reciprocating friction-wear testing machine comprises a rack, a reciprocating mechanism, a friction loading mechanism and a magnetic shielding case, wherein the rack comprises a top plate, a middle plate and a bottom plate, the middle plate and the bottom plate are connected through support rods, and a vertical support plate is mounted between the middle plate and the top plate; the reciprocating mechanism comprises a polished rod and a sliding seat allowing a block sample to be loaded, the polished rod is fixed between the rear end of the top plate and the middle plate, and the sliding seat can be movably nested on the polished rod; the friction loading mechanism is provided with a press head assembly, a lever, a support mechanism and a displacement loading device, a thermocouple temperature sensor is mounted in the press head assembly, the press head assembly can movably penetrate through the vertical support plate, the front end of the press head assembly is pivoted with the lever, and the rear end of the press head assembly is used for loading a pin sample and can be contacted with the sliding seat; the upper end of the lever is pivoted to a shaft seat mounted at the front end of the top plate, the lower end of the lever is connected with the displacement loading device, the support mechanism is contacted with the rear side surface of the lever, and the upper end of the support mechanism is pivoted to the vertical support plate; the magnetic shielding case is placed on the middle plate.

Description

technical field [0001] The invention belongs to the technical field of friction and wear testing machines, and in particular relates to a vertical magnetic shielding reciprocating friction and wear testing machine, which can simulate the reciprocating friction phenomenon of samples, and monitor the friction and wear of samples under the condition of shielding the geomagnetic field. The changes of surface magnetic field, temperature and surface morphology during the process. Background technique [0002] When ferromagnetic materials are subjected to friction and wear, they will generate a spontaneous magnetic field. In order to study the influence of external magnetic fields in the process of friction and magnetization, it is necessary to conduct friction and wear experiments on ferromagnetic materials under the condition of shielding the external magnetic field. [0003] There are many varieties of existing friction and wear testing machines, which are widely used, but there...

AI Technical Summary

Problems solved by technology

For example, "a magnetic shielding compound friction and wear testing machine" disclosed in Chinese Patent No. 201410053609.5, which drives the sample to reciprocate through the cylinder and piston rod arranged on the top platform, the reciprocating speed is difficult to control, and the used The magnetic shielding effect of the shielding cover is not particularly ideal; in addition, the above-mentioned testing machine cannot monitor the surface topography changes of the sample during the friction process

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