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Generator bearing and bearing bush ball-type contact surface running-in method

A technology for generator bearings and contact surfaces, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problems of labor waste, rework, grinding, etc., improve work efficiency, avoid rework, and display accurately Effect

Active Publication Date: 2018-06-01
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effects of multiple matching researches are different, which restricts the production of turbo-generators in many ways: 1. Low production efficiency: the effect of each matching research is different, which makes the matching research cycle longer; 2. Affects product quality: every time After each installation, it will be different from the original grinding effect, which will reduce the contact surface and affect the stability of the product; 3. Serious labor waste: due to the different grinding methods and effects, each grinding will cause a long time waiting for work, and produce Multiple rework and duplication of labor

Method used

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  • Generator bearing and bearing bush ball-type contact surface running-in method
  • Generator bearing and bearing bush ball-type contact surface running-in method
  • Generator bearing and bearing bush ball-type contact surface running-in method

Examples

Experimental program
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Effect test

Embodiment

[0030] A matching research method for the spherical contact surface of a generator bearing and a bearing bush:

[0031] Step 1: Install the bearing bush: disassemble the bearing bush 1 after the processing is completed, clean the mid-section surface S of the bearing bush 1, level it with oil and then assemble it. The assembly is completed as follows: figure 1 shown; as figure 2 As shown, when the bearing bush 1 is assembled, the left side is the empty side, and the right side is the hydrogen side. The tightening sequence of the bolts on the middle split surface S is: bolt one 11 on the upper right, bolt two 12 on the lower left, and bolt three 13 on the upper left , Bolt four 14 on the lower right; the four bolts are tooling bolts, and the tightening torque of the bolts is 1385N·m.

[0032] Step 2: Lifting the bearing: use the sling to lift the bearing 1; the top of the bearing 1 is equipped with a lifting handle 15, and when lifting, keep the bearing 1 in a vertical state; ...

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Abstract

The present invention discloses a generator bearing and bearing bush ball-type contact surface running-in method. The method comprises the steps of: installing and lifting a bearing bush; respectivelyusing two developers with different colors onto the bearing bush and a bearing pedestal to allow a display effect after grinding to be clearer, coating the first-type developer at an inner ball surface of the lower half portion of the bearing pedestal, and coating the second-type developer on an outer ball surface of the bearing bush; determining a grinding amplitude; and comparing developing areas of the two developers on the bearing pedestal, and determining whether the running-in of the two is qualified or not according to qualification requirements defined in advance. The generator bearing and bearing bush ball-type contact surface running-in method makes corresponding standards for each link of the running-in process consisting of installation of the bearing bush, lifting of the bearing bush, the grinding amplitude, the color coating method and the qualification determination so as to improve the contact surface of the bearing bush and the bearing pedestal and improve the bearingsealing, the operation stability and the production efficiency.

Description

technical field [0001] The invention relates to a matching research method for a spherical contact surface of a generator bearing and a bearing bush, and belongs to the technical field of generator bearing seal manufacturing. Background technique [0002] The bearing pad is the main support for the rotor, and the quality of the contact surface between the bearing pad and the bearing seat directly affects the vibration of the turbine generator rotor and the heating of the bearing pad. The traditional process is to carry out matching research with the bearing seat after the bearing bush is completed. This traditional process has great uncontrollability, and there is no national standard support. The effects of multiple matching researches are different, which restricts the production of turbo-generators in many ways: 1. Low production efficiency: the effect of each matching research is different, which makes the matching research cycle longer; 2. Affects product quality: every...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/14
CPCH02K15/14H02K2213/03
Inventor 张峰权罗湘衡张会涛朱伟华王扬帆
Owner SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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