Sliding bearing

Abstract

The invention discloses a sliding bearing, which comprises an outer ring and an inner ring, wherein the cross section of the inner ring is an enclosed ring formed by connecting at least four same arcs; and each arc is in exterior contact with a virtual circle concentric with the outer ring at the same time. By adopting the sliding bearing, the conventional design mode of a standard circle for the inner ring of the bearing is broken through, the contact area between a shaft and the bearing can be increased along the radial direction and the axial direction, the contact stress between the shaft and the bearing is reduced, meanwhile, enough lubrication and enough storage of a lubricant for the contact surface between the shaft and the bearing in the lubricating state can be ensured, and the lubricant for lubricating is prevented from losing during mutual extrusion of the shaft and the bearing. Compared with the conventional bearing, the sliding bearing has the advantages that: due to the comprehensive effects of the functions, the service lives of the shaft and the bearing which are connected with each other can be greatly prolonged, and the machining of the sliding bearing is much easier than that of the bearing available in the market. The sliding bearing is much easier for clearing impurities and wastes compared with other oil-containing bearings.

Description

technical field [0001] The invention relates to a sliding bearing, in particular to a sliding bearing structure with large contact surface and capable of bearing large radial force. Background technique [0002] Bearings are connecting parts for rotating mechanisms in mechanical equipment, and are widely used in aerospace engineering, steel processing equipment, mechanical transmission equipment, mills, mining machinery, construction machinery and vibration machinery, environmental protection equipment, ships, textile machinery and other fields. [0003] Generally speaking, the damage of the connection between the shaft and the bearing is either the wear of the shaft, the wear of the bearing, or the wear of both. The two main causes of wear are excessive contact pressure and insufficient lubrication, which eventually lead to strong friction between the shaft and bearing, which in turn generates high temperatures and damages the metal layer of the shaft or bearing contact sur...

AI Technical Summary

Problems solved by technology

[0006] However, the invisible microwave structure above bears the pressure on the shaft by the raised wave surface, the contact surface is small, the wear is severe, and the service life of the bearing is short.

In addition, the above-mentioned structure is also relatively difficult to remove impurities and waste, and the processing is also relatively complicated

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