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Magnetic centrifugal pump

A magnetic centrifugal pump and centrifugal pump technology, applied in the direction of pumps, pump components, non-variable capacity pumps, etc., can solve the problems of thin connection, poor concentricity stability of the outer magnetic structure of the cantilever, etc., to improve the concentricity and uniform force. Effect

Inactive Publication Date: 2012-08-22
蓝星化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art, and provide a magnetic centrifugal pump, which solves the problem that the connection between the driving shaft of the magnetic centrifugal pump and the outer magnetic steel is thin, and the concentricity stability of the cantilever outer magnetic structure is poor

Method used

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  • Magnetic centrifugal pump
  • Magnetic centrifugal pump

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Embodiment Construction

[0011] Such as figure 1 As shown, the first stepped section 4 at the right end of the drive shaft 1 is processed into a circle, the second stepped section 3 is processed into a hexagonal shape, and the left end of the outer magnetic steel 2 is sleeved on the right end of the drive shaft 1, and processed with the first stepped section 4 For the cross-section matched with the second step section 3, a threaded hole is drilled in the center of the drive shaft, and the drive shaft 1 is connected with the outer magnetic steel with hexagon socket bolts.

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Abstract

The invention relates to a magnetic centrifugal pump, which comprises a drive shaft (1) and an outer magnetic steel (2) which is connected with the drive shaft (1), wherein the right end of the drive shaft (1) is provided with a scalariform which is formed by a first step section (4) and a second step section (3), wherein the cross section of one of the first step section (4) and the second step section (3) is of a circular shape, the cross section of another section is of a polygonal shape, and the left end of the outer magnetic steel (2) is sleeved on the right end of the drive shaft (1) and is provided with a cross section which is matched with the first step section (4) and the second step section (3). The front end of the drive shaft in the magnetic centrifugal pump is processed intoa structure with circular front and square back, and the left end of the outer magnetic steel is sleeved on the right end of the drive shaft and is processed into a structure with square exterior andcircular interior; a central circle positioning is realized, so the concentricity is improved. With the outer hexagonal driving, the stress is uniform, so the concentricity of the outer magnetic steel and the drive shaft is improved, and the stable and vibration-free state is realized.

Description

technical field [0001] The invention relates to the field of chemical machinery, in particular to a magnetic centrifugal pump. Background technique [0002] With the development of chemical machinery and the continuous advancement of science and technology, the requirements for chemical centrifugal pumps are also getting higher and higher. In the known technology, fully enclosed magnetic pumps are the latest special equipment with relatively high practicability, but magnetic centrifugal pumps The connection between the pump drive shaft and the external magnetic field is thin, the positioning hole is small, and the concentricity stability of the cantilever external magnetic structure has always been poor, resulting in external magnetic vibration, causing the isolation sleeve to wear out in a short period of time, and the drive bearing box is damaged, resulting in the scrapping of the whole machine. Contents of the invention [0003] The purpose of the present invention is t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/043F04D29/053
Inventor 聂志刚贾勇刘天佐郭泰兴王旭丰任筱蓉
Owner 蓝星化工有限责任公司