Motor limiting structure for multistage pump

Abstract

The invention discloses a motor limiting structure for a multistage pump, and belongs to the technical field of water pumps. The stability of rotation of a motor shaft can be effectively improved. According to key points of the technical scheme of the motor limiting structure for the multistage pump, a motor cylinder, a motor and the motor shaft are included, both the motor and the motor shaft aremounted in the motor cylinder, an upper connecting seat and a lower connecting seat are arranged at the two ends of the motor cylinder correspondingly, the upper connecting seat and the lower connecting seat each comprise a shaft hole allowing the motor shaft to penetrate through, a thrust structure sleeving the motor shaft is arranged between the lower connecting seat and the motor and comprisesan upper friction piece, a lower friction piece and a thrust seat which are sequentially arranged from top to bottom, a spherical groove is formed in the top end of the lower connecting seat, and thebottom face of the thrust seat is provided with a spherical convex block matched with the spherical groove.

Description

technical field [0001] The invention belongs to the technical field of water pumps, in particular to a high-stability thrust structure of a multi-stage pump. Background technique [0002] In order to obtain a higher head of the water pump, it is necessary to install multi-stage impellers and guide parts on the pump shaft. However, with the increase of the impeller, the running stability of the motor in the water pump will decrease, which will affect the performance of the water pump. Therefore, how to effectively improve the performance of the motor? Runtime stability is especially important. Contents of the invention [0003] The purpose of the present invention is to provide a motor position limiting structure of a multi-stage pump, which can effectively improve the stability of the motor shaft rotation. [0004] The object of the present invention is achieved in the following way: a motor limiting structure of a multi-stage pump includes a motor barrel, a motor and a m...

AI Technical Summary

Problems solved by technology

[0002] In order to obtain a higher head of the water pump, it is necessary to install multi-stage impellers and guide components on the pump shaft. However, with the increase of the impeller, the running stability of the motor in the water pump will decrease, which will affect the performance of the water pump. Therefore, how to effectively improve the performance of the motor? Stability at runtime is especially important

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