A vertical pump with bearing self-lubricating function

Abstract

The invention belongs to the technical field of fluid machines and particularly relates to a vertical pump with a bearing self-lubricating function. The vertical pump comprises a pump shell with a pump cavity. A pump shaft is fixed in the pump cavity through bearings in a simply supported beam manner. The bearings comprise the upper bearing and the lower bearing. A screw conveying mechanism is arranged beside the lower bearing. A power input shaft of the screw conveying mechanism is coaxially arranged on the pump shaft in a sleeving manner or engaged with the pump shaft. The discharging end of the screw conveying mechanism is communicated with a part, to be lubricated, of the corresponding bearing, and the feeding end of the screw conveying mechanism is communicated with an oil storage bin. An oil pumping channel is formed in the pump shell. Lubricating oil in the oil storage bin passes through the screw conveying mechanism, the oil pumping channel, the upper bearing, the pump cavity and the lower bearing and then flows back to the oil storage bin to form a closed loop through a backflow hole formed in the oil storage bin. The vertical pump has very high maintenance convenience and is high in structural compactness, under the premise that normal and reliable work of the bearings of the vertical pump is ensured, lubricating efficiency and application flexibility of the vertical pump can be improved.

Description

technical field [0001] The invention belongs to the technical field of fluid machinery, and in particular relates to a vertical pump with bearing self-lubricating function. Background technique [0002] As a kind of fluid machinery, vertical pumps are widely used in industrial and urban water supply and drainage, pressurized water supply for high-rise buildings, garden sprinkler irrigation, fire protection, and even cold and warm water cycle pressurization and other fields. Since the unique pump shaft of the vertical pump is in a vertical working state, if the traditional oil lubrication structure with high fluidity is used, it is obvious that the lubricating oil will not be able to act on the upper bearing naturally due to the influence of gravity, resulting in lubrication failure; therefore , The traditional vertical pump structure uses grease lubrication to ensure the normal use of the bearing system. However, not to mention the heat dissipation efficiency of the grease ...

AI Technical Summary

Problems solved by technology

Excessive geometric dimensions not only increase the production cost, but also lead to a larger volume. At the same time, the concept of how much grease ensures a large power pump also makes the power range of vertical pumps on the market too small, which greatly reduces the Restricts the market adaptability of vertical pumps

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