Centrifugal pump convenient to dismantle

Abstract

The invention provides a centrifugal pump convenient to dismantle. The centrifugal pump comprises a bearing component, a pump casing and a rotor component, wherein the bearing component is connected with the rotor component; the pump casing is connected with the bearing component and the rotor component; the bearing component comprises a bearing gland, a bearing ring, a bearing sleeve, a bearing, a bearing body, a shaft and a bearing nut; the bearing is in interference connection with the bearing sleeve; the bearing sleeve is in clearance connection with the shaft; the bearing is connected with the bearing body; the bearing ring is connected with the bearing sleeve; the bearing gland is connected with the bearing body; the bearing is connected with the inner ring of the bearing body after being connected with the bearing sleeve; the bearing ring is connected with the shaft; the bearing nut is connected with the shaft and the bearing ring. According the invention, the problems that when the bearing is replaced, a user need to demount the bearing body, and after the bearing and the shaft are burnt, the user needs to dismantle the whole centrifugal pump to replace the bearing are solved; the bearing is convenient and fast to replace; the phenomenon that the shaft is scratched when the bearing is replaced is reduced, and thus the service life of the shaft is prolonged.

Description

technical field [0001] The present invention relates to the technical field of centrifugal pumps, in particular to a portable centrifugal pump. Background technique [0002] At present, for pumps used in various industries, the pump bearing body is generally composed of a lock nut, a bearing gland, a bearing, a bearing body and a shaft. The fitting size between the bearing and the shaft is an interference fit. When the lock nut locks the bearing, there is a static friction force between the lock nut and the end face of the inner ring of the bearing. Due to the effect of static friction, the shaft drives the lock nut and the bearing. The inner ring rotates together. The existing centrifugal pump bearing body has the following problems: the bearing is a wearing part that needs to be replaced regularly. Since the fitting size between the bearing and the shaft is an interference fit or a transition fit, the fit is tight, and it is easy to damage when the bearing is often disass...

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned defects and problems of the prior art, the object of the present invention is to provide a detachable centrifugal pump to solve the problem that the bearing body needs to be removed to replace the bearing, and it is difficult to dismantle the pump to replace the bearing after the bearing and the shaft are burned. Make the replacement of the bearing more convenient, reduce the problem of scratching the shaft when replacing the bearing, and increase the service life of the shaft

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