Sliding bearing body structure of large-caliber chemical circulating double-suction pump

Abstract

The invention relates to a sliding bearing body structure of a large-caliber chemical circulating double-suction pump, which consists of a tail end bearing part and a driving end bearing part; the tail end bearing part comprises a tail end bearing pedestal, a tail end half type oil seal cover plate, a tail end half type oil seal, a tail end bearing end cover, a tail end automatic release valve, a tail end bearing cover, a tail end sliding bearing, double tail end thrower rings, a rolling bearing and a bearing tail cover; and the driving end bearing part comprises a driving end bearing pedestal, a driving end half type oil seal cover plate, a driving end half type oil seal, a driving end bearing end cover, a driving end automatic release valve, a driving end bearing cover, a driving end sliding bearing and double driving end thrower rings. The sliding bearing body structure has the advantages that: oil-air mixture is prevented; oil leakage-preventing and dust-proofing effects are better; maintenance, overhaul and replacement are facilitated; the bearings can more stably operate and have high shock-absorbing capability, a good noise-reducing effect, a long service life and high load-bearing capability, and the phenomenon of axial displacement is prevented.

Description

technical field [0001] The invention relates to a large-diameter double-suction pump, in particular to a sliding bearing body structure of a large-diameter double-suction pump for chemical circulation. Background technique [0002] Depend on figure 1 , figure 2 It can be seen that the bearing body in the prior art is composed of a tail end bearing body part and a driving end bearing part. The tail end bearing part includes: oil baffle plate 201, felt ring oil seal 202, bearing end cover 203, rolling bearing 204, rubber plug 205, oil throwing ring 206, bearing tail cover 207 and bearing cavity 208; oil throwing ring 206, The rolling bearing 204 is placed in the bearing cavity 208; the oil throwing ring 206 is arranged beside the rolling bearing 204; the bearing end cover 207 is sealed and fixed on the left side of the bearing cavity 208; the bearing end cover 207 is connected and fixed with the bearing cavity 208 by bolts; the bearing The end cover 203 is sealed and fixed...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned structure has the following problems: large radial size, large vibration, high noise, and short life; when lubricating with thin oil, it is equipped with a single oil throwing ring, and the oil throwing ring has no limit rod, and the oil throwing ring rotates eccentrically around the main shaft. The swinging range of the oil throwing ring is large, and the thin oil in the bearing cavity is stirred up and splashed around. The thin oil is not discharged in time under the agitation of the oil throwing ring, and the heat of operation exists; and the integral oil seal is worn out. It is extremely inconvenient to replace, and even a small loss is worth the cost (the coupling is disassembled due to the replacement of the integral oil seal); the left and right connections under the bearing of the existing structure are immersed in the gap between the rolling elements itself, which may easily lead to poor circulation of thin oil; the existing The structure of the bearing body parts is difficult to seal the splashing thin oil, resulting in serious leakage and insufficient thin oil in the bearing cavity. It is necessary to frequently fill the bearing cavity with thin oil to ensure the safety and stability of the entire pump set. Greatly reduced, and caused a certain amount of environmental pollution; the bearing body components, bearings and oil throwing rings of the existing structure are difficult to assemble and disassemble, and the oil throwing ring of the bearing body is difficult to ensure that the oil throwing ring is always in contact with the thin oil in the cavity when the oil throwing ring moves contact, which brings hidden dangers to the reliability of double-suction pumps for chemical circulation

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