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Method for grinding conical bearing large cone angle roller for wind power generation

A technology of tapered bearings and tapered rollers is applied in the field of roller grinding with large taper angle of wind power generation tapered bearings, and achieves the effect of improving the variation of the roller diameter and solving the technical difficulties of grinding.

Active Publication Date: 2009-06-24
WAFANGDIAN BEARING GRP CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to propose a large cone angle roller grinding method for wind power generation tapered bearings to solve the technical difficulties in grinding the outer diameter of large cone angle tapered rollers

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  • Method for grinding conical bearing large cone angle roller for wind power generation
  • Method for grinding conical bearing large cone angle roller for wind power generation

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Embodiment Construction

[0012] as attached figure 1 , figure 2 As shown, the roller processing is about 400 grains. Describe the processing technology of the final grinding outer diameter and grinding slope of tapered rollers. The diameter tolerance of the final grinding product of the roller requires ±0.02mm, and the depth of the grinding slope of the roller requires 13μm~21μm. The final grinding process is divided into three parts according to the difference in the outer diameter of the roller, that is, the outer diameter of the roller is divided into +0.06mm, 0.035mm, and 0.015mm. That is to say, the final grinding process uses rubber 80# grinding wheel for grinding. After a period of time, the self-sharpness of the grinding wheel particles is poor. In order to ensure that the surface roughness of the roller reaches Ra0.08μm, the surface of the grinding wheel must be repaired frequently. At this time, first use a roller with an outer diameter of +0.06mm to grind to +0.035mm, so that the self-s...

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Abstract

The invention relates to a processing method for grinding a large cone-angle roller of a wind power generation conical bearing, which comprises the following steps: 1, performing plunge grinding for multiple times through fine grinding and accurate grinding on the same machine tool of a novel grinding machine MG1080B; 2, performing plunge grinding on the outside diameter of a taper roller, and using a grinding wheel master plate with the diameter R of 100 meters to perform processing and using a manual oilstone to perform reciprocating grinding, wherein the outside diameter allowances of the roller are different and are divided into three parts, the size of the outside diameter of the roller after the final grinding is 1.5mu m, and the convexity of the outside diameter of the roller is 1.5mu m; and 3, adopting a grinding wheel master plate with the diameter R of 40 meters to process grinding slopes on two ends of the roller, and adopting a rubber grinding wheel of No. 100 to process radial graphics singly through an anti-thrust method, wherein when the slope depth, the slope length and the surface roughness reach between 13 and 21mu m and Ra is 0.08mu m, two bearing inner races are combined into a whole. With the method, the outside diameter form and position tolerance of the taper roller always reaches the technological requirements, and the difficulties in the process of grinding the outside diameter of the large cone-angle taper roller are overcome.

Description

Technical field [0001] The patent of the invention belongs to the technical field of processing the outer diameter grinding of tapered rollers with large cone angle for wind power generation conical bearings, in particular to a grinding process for large cone angle rollers for wind power generation conical bearings. Background technique [0002] Tapered rollers with large cone angles for tapered bearings used in certain specifications of wind power generation. Since the semi-cone angle of this type of large cone angle tapered rollers is as large as 4°20', the precision grade of tapered rollers is Class I precision, and the precision requirements for tapered rollers It is extremely high, and it is the first time in the history of ZWZ that it is processed, and the processing is extremely difficult. In the process of trial and error, the processing difficulty of this kind of tapered roller is unprecedented, and the general method of grinding the outer diameter of tapered roller...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/14
Inventor 王江山张石银于晓岩丁敏周建美
Owner WAFANGDIAN BEARING GRP CO LTD
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