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Single-stage centrifugal pump with motor elongated shaft expansion structure

A technology for centrifugal pumps and extended shafts, which is applied to parts of pumping devices for elastic fluids, pumps, pump devices, etc. It can solve problems such as complex structures and individual bearing positioning of pump shafts, and achieve simple connection and stable operation. Effect

Inactive Publication Date: 2007-01-10
SHANGHAI EAST PUMP(GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a single-stage centrifugal pump with a motor-extended shaft extension structure. The single-stage centrifugal pump with a motor-extended shaft extension structure needs to solve the pump shaft needs of single-stage centrifugal pumps in the prior art. Single bearing positioning, technical problems of complex structure

Method used

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  • Single-stage centrifugal pump with motor elongated shaft expansion structure

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Embodiment Construction

[0010] Such as figure 1 As shown, the single-stage centrifugal pump with motor extension shaft extension structure of the present invention is composed of a pump body 2 and a motor 1, and an impeller 3 is arranged in the pump body 2, wherein the pump body and the motor 1 There is a motor frame 4 between them, the motor frame 4 is fixedly connected with the pump body and the motor respectively, the output shaft 5 of the motor 1 extends into the pump body 2, and the impeller 3 is fixed It is arranged on the output shaft 5 of the motor 1 described above.

[0011] Further, the pump body is a vertical single-stage centrifugal pump body.

[0012] Specifically, the output shaft 5 of the motor 1 is positioned through a bearing arranged in the motor 1 .

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Abstract

The invention is a single-stage centrifugal pump with lengthened machine shaft extension structure, comprising pump body and electric machine, where an impeller is arranged in the pump body, a machine frame is arranged between the pump body and the electric machine, the machine frame is fixed with the pump body and the electric machine, an output shaft of the electric machine extends into the pump body, and the impeller is fixed on the output shaft. The output shaft of the electric machine is located by the bearing arranged in the electric machine. The invention replaces the connector of the traditional pump shaft, pump bearing and shaft coupling with the lengthened shaft extension as pump shaft, making the connection simpler, and reducing manufacturing, installing and maintenance costs and the operating of the pump is more stable and more reliable.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a liquid variable displacement machine, in particular to a pump, in particular to a single-stage centrifugal pump with an extended shaft extension structure of a motor. Background technique [0002] In the prior art, the single-stage centrifugal pump is connected to the motor through a coupling, and the pump shaft is driven to rotate by the coupling. The pump shaft requires a separate bearing for positioning, the structure is relatively complicated, and the manufacturing cost is relatively high. Contents of the invention [0003] The purpose of the present invention is to provide a single-stage centrifugal pump with a motor-extended shaft extension structure. The single-stage centrifugal pump with a motor-extended shaft extension structure should solve the pump shaft needs of single-stage centrifugal pumps in the prior art. Individual bearing positioning, technical problems of complex ...

Claims

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Application Information

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IPC IPC(8): F04D29/04F04D13/06F04D1/00
Inventor 吴永旭
Owner SHANGHAI EAST PUMP(GRP) CO LTD
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