a sliding bearing

Abstract

The invention relates to a sliding bearing, belonging to the technical field of bearing monitoring and new energy. It includes inner and outer rings, baffles, shields, sensors and circuit boards. The outer ring consists of an outer ring body and an outer electrode. The outer electrode consists of an outer pole ring, an outer pole finger and an outer terminal. The outer pole finger is placed inside the outer ring body. ; The inner ring consists of an inner ring body and an inner electrode, the inner electrode consists of an inner pole ring and an inner pole finger, the inner pole finger is placed inside the inner ring body, and the electrode ring is in sliding contact with the inner pole ring through the conductive block; The number and central angle of the inner and outer rings are equal; the materials of the inner and outer rings are two kinds of polymer materials whose triboelectric sequences are far apart. A potential difference is generated between the inner and outer pole fingers; the inner and outer pole fingers alternately overlap and separate in the circumferential direction, so that the potential difference between the inner and outer electrodes alternately increases and decreases, converting mechanical energy into electrical energy, and the generated electrical energy is processed and supplied to the sensor and information transmission system.

Description

technical field [0001] The invention belongs to the technical field of bearing monitoring and new energy, and particularly relates to a sliding bearing. Background technique [0002] Bearings are an indispensable standard part in the fields of machine tools, vehicles, mining machinery and light industrial machinery, and are also one of the most vulnerable parts in related transmission systems. 30% of rotating machinery failures are caused by bearing failures. Therefore, bearing condition monitoring and early fault diagnosis have attracted great attention. On-line monitoring of bearings and their transmission systems has become a prerequisite for the reliable operation of related equipment in the fields of generators, ships, high-speed railways, and aircraft. The performance indicators that need to be monitored include temperature, vibration, rotational speed, and noise. The initial bearing monitoring system is mainly a split-type external structure, which belongs to the cat...

AI Technical Summary

Problems solved by technology

At present, most of the bearings with self-power monitoring function proposed use the electromagnetic principle and the piezoelectric principle to generate electricity. The disadvantages of electromagnetic power generation are the existence of magnetic interference and weak power generation capacity at low speeds. The disadvantages of piezoelectric power generation are that the additional space required is relatively large, Piezoelectric ceramics will depolarize when the temperature is too high

Obviously, the existing technology still has great limitations in practical application, and various bearings with self-powered monitoring functions that are small in size and highly integrated, especially suitable for high-temperature environments, are still urgently needed by various industries.

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