Composite material static pressure sliding bearing with sealing structure

Abstract

The invention discloses a composite material static pressure sliding bearing with a sealing structure, comprising a bearing pad substrate (1) and a bearing pad (2). A pad surface of the bearing pad (2) is provided with a static pressure oil cavity (3), the static pressure oil cavity (3) is communicated with a high-pressure oil channel (4) passing through the bearing pad (2) and the bearing pad substrate (1), the bearing pad (2) is an elastic metal plastic pad, and a protective sleeve (5) fixedly which is fixedly connected with the bearing pad substrate (1) and used for sealing the elastic metal plastic pad (2) is arranged in the high-pressure oil channel (4). The composite material static pressure sliding bearing can effectively prevent high-pressure oil from permeating into a clearance between a resin surface layer of the elastic metal plastic pad and a metal wire transitional layer and avoid the damage of the composite material structure of the pad surface due to the high pressure oil, therefore, the elastic metal plastic pad can be applied to the static pressure bearings of heavy-load machinery apparatuses to sufficiently fulfill the properties of high bearing capacity, high abrasion without scraping the bearing pad and self-lubrication of the elastic metal plastic pad.

Description

Technical field: [0001] The invention relates to a static pressure sliding bearing of composite material, in particular to a static pressure sliding bearing of composite material with sealing structure which can replace the existing bearing bush with elastic metal plastic tile. Background technique: [0002] At present, elastic metal plastic tiles have replaced Babbitt alloy bearing bushes because of their high load-carrying capacity, high wear resistance, no need to scratch the bearing bush and certain self-lubricating properties, and are used in hydraulic turbines, vertical mill gearboxes and large speed reducers. Machines and other important occasions have been affirmed by the majority of users. However, the structure of the hydrostatic bearing of the existing heavy-duty mechanical equipment limits the application of the elastic metal-plastic tile. [0003] The existing hydrostatic bearings of heavy-duty mechanical equipment all have a bearing pad base and a bearing pad ...

AI Technical Summary

Problems solved by technology

Since the elastic metal-plastic tile is a composite material structure, there is a small gap between the resin surface layer and the wire transition layer, although it does not affect the bonding strength, but if a high-pressure lubricating oil (generally about 25MPa) is applied to its section ) will have a certain impact on the bonding strength, and in severe cases, it will cause structural damage to the composite material of the pad surface. Therefore, the bearing pads in the high specific pressure hydrostatic bearing structure still use the relatively backward Babbitt alloy bearing pads

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