Oil leakage prevention device of air feeder bearing box

Abstract

The invention discloses an oil leakage prevention device of an air feeder bearing box. The oil leakage prevention device comprises the air feeder bearing box, a main shaft, a bearing, a hook-shaped structure, a labyrinth seal, a bearing box end cover and a seal ring. The main shaft is arranged in the air feeder bearing box, the bearing is mounted on the main shaft, the hook-shaped structure is arranged at an opening end of the air feeder bearing box, and the labyrinth seal is arranged in the hook-shaped structure. The bearing box end cover is arranged at the opening end of the air feeder bearing box, the seal ring is arranged between the bearing box end cover and the air feeder bearing box, and an oil blocking ring is arranged between the bearing and the hook-shaped structure. The outer ring of the oil blocking ring is in a tilt shape. The oil blocking ring is in a split type and connected to the main shaft through a bolt. The distance between the outer ring of the oil blocking ring and the hook-shaped structure is no less than 3mm. The oil leakage prevention device of the air feeder bearing box thoroughly solves the oil leakage problem, obtains good effects, and reaches guarantee of purposes of good condition and safe operation of equipment.

Description

technical field [0001] The invention relates to an oil leakage prevention device, in particular to an oil leakage prevention device for a blower bearing box, and belongs to the technical field of mechanical equipment. Background technique [0002] The blower is used to provide the secondary air required for combustion and the dry air required for the coal mill to the furnace. [0003] The bearing box of the blower is lubricated with grease, and the oil quality deteriorates after a period of time, and the bearing needs to be replaced. Later, the bearing box is changed to thin oil lubrication, but the oil leakage of the bearing box is serious, and it flows down along the end cover. [0004] Oil leakage has gradually become a problem that restricts the safe operation of equipment and on-site civilized production, and frequent oil replenishment also increases cost consumption and maintenance workload. [0005] Through practical analysis, it is concluded that the lack and defect...

AI Technical Summary

Problems solved by technology

[0006] Due to the one-piece structure of the bearing housing, secondary processing or renewal of the labyrinth seal is very difficult and uneconomical

[0007] However, the limitation of the axial distance between the coupling side and the air shell side limits the additional auxiliary seal.

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