Plain bearing bush insulation structure, bearing bush and manufacturing technology of bearing bush

Abstract

The invention discloses a plain bearing bush insulation structure, a bearing bush and a manufacturing technology of the bearing bush. According to the technical scheme of the bearing bush and the manufacturing technology of the bearing bush, the bearing bush insulation structure with a babbitt metal layer poured is included; a V-shaped groove is further included; or, a fiber glass filament layer of 1 mm to 2 mm is arranged.; or, a teflon layer is arranged on the outer surface of the fiber glass filament layer; or, a primary fiber structure is composed of a plurality of secondary fiber structures, and a plurality of stacked filter base layers are included. The defects that a traditional insulation bearing is isolated from a bearing bush through teflon film pasting to cut off a shaft current path, consequently, an insulation film is quite prone to being damaged in the mounting and maintaining process, the repair technology adopted after damage is quite complex, a dedicated tool is needed, and consequently, maintaining difficulty, equipment scraping and the like are caused are overcome. The plain bearing bush insulation structure, the bearing bush and the manufacturing technology of the bearing bush are suitable for insulation plain bearing bushes adopted in various projects, and especially suitable for insulation of plain bearing bushes of matched large rotary machines in the industries such as mines, electric power, coal mines, metallurgy, traffic, chemical engineering, water conservancy, machine tools and chips.

Description

technical field [0001] The invention relates to the field of sliding bearings for motors, in particular to an insulating structure of a sliding bearing bearing pad, a bearing pad and a preparation process for the bearing pad. Background technique [0002] Sliding bearings are the key components of large rotating machinery. Their main function is to support the rotor and additional weight, bear radial and axial loads, and ensure the stable operation of the system. In order to prevent the electrical corrosion of the Babbitt alloy bearing bush caused by the shaft current, one end of the sliding bearing for the motor usually needs to be made into an insulating bearing. The usual insulation treatment is shown in JB / T5888-2005, which is to isolate the bearing bush by pasting a polytetrafluoroethylene film on the inner ball of the bearing seat, thereby cutting off the shaft current path, but this structure of the insulating film is extremely difficult during installation and mainte...

AI Technical Summary

Problems solved by technology

The usual insulation treatment is shown in JB / T5888-2005, which is to isolate the bearing bush by pasting a polytetrafluoroethylene film on the inner ball of the bearing seat, thereby cutting off the shaft current path, but this structure of the insulating film is extremely difficult during installation and maintenance. It is easily damaged, and the repair process after damage is also quite complicated, requiring special tooling, which causes great inconvenience

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