Method for ensuring coaxiality of bearing and stator core of circulating pump motor

A stator core and circulation pump technology, which is applied to parts, pumps, pump components, etc. of the pumping device used for elastic fluid, can solve the problems such as the lack of dimensional accuracy and roughness of the inner circle of the bearing sleeve, and achieve The production cycle is guaranteed, the quality is stable, and the effect of reducing manufacturing costs

Active Publication Date: 2010-08-25
上海电气集团上海电机厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the inner circle of the bearing sleeve of the lower bearing of the car is directly matched, the diameter, dimensional accuracy and roughness of the inner circle of the bearing sleeve will not meet the technical requirements due to the limitation of the speed of the vertical lathe

Method used

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  • Method for ensuring coaxiality of bearing and stator core of circulating pump motor
  • Method for ensuring coaxiality of bearing and stator core of circulating pump motor
  • Method for ensuring coaxiality of bearing and stator core of circulating pump motor

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Embodiment Construction

[0020] In order to better understand the technical solution of the present invention, a detailed description will be given below through specific embodiments and in conjunction with the accompanying drawings.

[0021] Please refer to Fig. 1 to Fig. 5, the method for ensuring the coaxiality of the bearing and the stator core of the circulating pump motor of the present invention comprises the following steps:

[0022] Step 1, respectively finishing all the dimensions of the lower bearing sleeve 1 and the lower end cover 2 to meet the design requirements;

[0023] Step 2, put the lower bearing sleeve 1 into the lower end cover 2, drill a number of pin holes 3 between the lower bearing sleeve 1 and the lower end cover 2 and install the pins, and make positioning marks at the same time;

[0024] Step 3, the secondary machining of the upper vertical lathe of the stator 10, the inner circle 121 and the plane 122 of the lower bearing rack 12 of the stator 10 are firstly machined with...

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Abstract

The invention discloses a method for ensuring the coaxiality of a bearing and a stator core of a circulating pump motor, which can greatly improve the production efficiency and reduce the manufacturing cost, and comprises the following steps: respectively fine finishing the whole specifications of a lower bearing bush and a lower end cover; assembling the lower bearing bush into the lower end cover; secondary machining a stator by being placed on a vertical lathe; placing the lower end cover well assembled with the lower bearing bush into a machined lower bearing guard, and simultaneously adjusting the inner circle of the lower bearing bush to meet the technical requirements; correspondingly drilling a plurality of pinholes between the lower bearing guard of the stator and the lower end cover and assembling pins, and simultaneously well marking positioning marks; turning over the stator after being removed from the vertical lathe; placing the stator on the vertical lathe again, and lathing the inner circle and the plane of the upper bearing guard of the stator by taking the inner circle of the lower bearing bush as the adjusting standard; firstly assembling a thrust bearing seat of an upper bearing into the machined upper bearing guard, and then correspondingly lathing the seam allowance and the plane of the thrust bearing seat; and correspondingly drilling a plurality of pinholes between the thrust bearing seat and the upper bearing guard of the stator and assembling pins.

Description

technical field [0001] The invention relates to a processing method, in particular to a method for ensuring the coaxiality of a bearing of a circulating pump motor and a stator core. Background technique [0002] The lower bearing of the conventional vertical circulating pump motor is a rolling bearing, and the technical requirements for the coaxiality of the lower bearing and the stator core are very high, that is, the coaxiality between the lower bearing sleeve and the stator core is a very important indicator. In the prior art, the lower bearing sleeve and the stator core are processed separately, which will cause cumulative errors composed of calibration errors, assembly errors and secondary positioning errors. In order to ensure the coaxiality between the inner circle of the stator core and the bearings at both ends, the stator needs to be processed twice, that is, the inner circle and the plane of the upper and lower bearing gears are machined separately based on the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/60
Inventor 陈健康
Owner 上海电气集团上海电机厂有限公司
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