Novel pump shaft

Abstract

The invention relates to a novel pump shaft. The novel pump shaft comprises a pump shaft body, wherein a through inner hole is formed in the pump shaft body, oil injection holes penetrating through the inner hole are formed in the pump shaft body, fixing holes are formed in the two ends of the pump shaft body, elastic grooves in communication with the fixing holes are formed outside the fixing holes, a bottom layer is arranged on the local surface of the pump shaft body, a spraying layer is sprayed on the outer surface of the bottom layer, a wear-resistant ceramic layer is arranged on the outer surface of the pump shaft body, and a wear-resistant ceramic layer is also arranged in the inner hole of the pump shaft body. The novel pump shaft has the beneficial effects that the pump shaft bodyis provided with the through inner hole and the oil injection holes, so that the pump shaft body is convenient to mount and fix, and the lubrication is increased; the fixing holes in the pump shaft body and the elastic grooves are matched, so that connection of the pump shaft body is facilitated; and the design of the wear-resistant ceramic layers inside and outside the pump shaft body and the spraying layer increases the wear resistance and durability of the pump shaft body.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a novel pump shaft. Background technique [0002] In the centrifugal pump, the pump shaft, as the main part of mechanical energy transmission, is connected with the motor by the coupling, and the torque of the motor is transmitted to the impeller. When working, due to the friction between the pump shaft and the inner packing of the centrifugal pump, it is easy to cause the centrifugal pump to leak easily, which not only reduces the service life of the pump shaft, but also poses certain safety hazards. In the magnetic pump, the friction between the pump shaft and the shaft sleeve will also lead to shortened service life of the pump shaft and potential safety hazards. Based on this, it is necessary to design a new type of centrifugal pump shaft. [0003] Therefore, a new technology needs to be sought to solve the above problems. Contents of the invention [0004] The purpose of the pre...

AI Technical Summary

Problems solved by technology

[0002] In the centrifugal pump, the pump shaft, as the main part of mechanical energy transmission, is connected with the motor by the coupling, and the torque of the motor is transmitted to the impeller. When working, due to the friction between the pump shaft and the inner packing of the centrifugal pump, it is easy to cause the centrifugal pump to leak easily, which not only reduces the service life of the pump shaft, but also poses certain safety hazards

In the magnetic pump, the friction between the pump shaft and the shaft sleeve will also lead to shortened service life of the pump shaft and potential safety hazards

Images