Thin-wall bearing and cross beam electric brush current-carrying friction experiment device

Abstract

The invention discloses a thin-wall bearing and cross beam electric brush current-carrying friction experiment device, and relates to the field of experiment test equipment. The device comprises a direct current power supply machine, an orthogonal loading device, a driving device, a U-shaped electric brush wire, an experiment disc and a thin-wall bearing. The driving device drives the experiment disc to horizontally rotate, the outer side of the experiment disc is in interference fit with the thin-wall bearing, and the anode and cathode of the power supply are respectively connected with the U-shaped electric brush wire and the outer ring of the thin-wall bearing; the orthogonal loading device comprises two thin plates which are perpendicular to each other, loading magnetic blocks are arranged on the thin plates and used for providing variable loads, the U-shaped electric brush wire is fixed to one end of the orthogonal loading device, and the other end of the orthogonal loading deviceis fixed to a plastic support; and the lower part of the U-shaped electric brush wire is in contact with the upper surface of the experiment disc. The beneficial effects are that the thin-wall ball bearing is additionally arranged on the experiment disc so that normal operation of the experiment disc can be guaranteed, and electric conduction can also be realized through the ball; and a steel wire is welded on the outer ring, current can be stably transmitted, continuous supply of the current can be guaranteed, and influence of circuit interruption on experiments can be avoided.

Description

technical field [0001] The invention relates to the field of experimental testing equipment, in particular to a current-carrying friction and wear experimental device for a thin-walled bearing and a cross beam brush. Background technique [0002] Current-carrying friction and wear refers to not only pure mechanical wear but also friction and wear caused by the coupling of various influencing factors such as electric field and thermal field when the equipment transmits current, signal and load under current-carrying conditions. Under the coupling of factors such as current, arc, and mechanical friction and wear, mechanical wear, arc ablation, and high-temperature oxidation will occur, and the friction and wear characteristics will become more complicated. Therefore, it is necessary to study the service life, stability and safety of current-carrying friction and wear equipment. [0003] Current-carrying friction and wear involves many fields, such as common motor brush system...

AI Technical Summary

Problems solved by technology

The existing experimental device is lacking in one aspect of economy, practicability, and environmental protection. In patent number 201310689847.0, there are too many steps and procedures, causing unnecessary waste, and the function is single. In patent number 201510642038.3, the device only considers the arc heat. influence, ignoring the influence of resistance heat and arc heat on friction and wear properties

In addition, most of the existing experimental machines are cumbersome to operate, expensive, and their reliability needs to be improved

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