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Machining method of wind-power center-aligning spherical surface roller bearing retainer

A bearing cage and spherical roller technology, which is applied in the field of wind power self-aligning spherical roller bearing cage processing, can solve the problems of poor reliability, poor stability, and can not meet the normal operation of wind turbines, and achieves good performance and use. Ideal effect, the effect of eliminating internal stress

Inactive Publication Date: 2012-10-31
DALIAN METALLURGICAL BEARING
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AI Technical Summary

Problems solved by technology

The self-aligning spherical roller bearing cage processed according to the traditional process has poor reliability and stability, and cannot meet the needs of the normal operation of the wind turbine.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0014] A method for processing a self-aligning spherical roller bearing cage for wind power, comprising the following process steps:

[0015] 1. After the cage material is sampled and tested to pass the test, the centrifugally cast wool cylinder is subjected to heat treatment to stabilize the structure, eliminate the internal stress caused by casting cooling, heat the electric furnace at 410-420 ° C, keep it for 4 hours, and cool it to below 150 ° C with the furnace;

[0016] 2. Fix the wool barrel of the cage on the CNC lathe, position and clamp it with a jig, and then start the CNC lathe to perform rough machining according to the set size, and the size of each part is 3 mm;

[0017] 3. Remove the turning stress, and temper after rough turning. The tempering temperature is 220-250°C to ensure

[0018] Warm for 6 hours;

[0019] 4. The tempered cage is fixed on the CNC lathe, the size of each part of the finish car, the average variation of the outer diameter and inner diam...

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Abstract

The invention provides a machining method of a wind-power center-aligning spherical surface roller bearing retainer. The method comprises the process steps of: sampling to test whether materials of a retainer is qualified; carrying out heat treatment on a blank cylinder which is centrifugally cast and heating to be at 410-420 DEG C; keeping the heat for 4 hours and cooling to be at 100-150 DEG C along with a furnace; carrying out rough machining on the blank cylinder of the retainer on a numerically controlled lathe according to a pre-set size and keeping 3 millimeters for the size of each part; removing turning stress and annealing after carrying out rough turning machining, wherein the annealing temperature is 220-250 DEG C; keeping the heat for 6 hours; fixing the annealed retainer on the numerically controlled lathe and carrying out finish turning on the size of each part; utilizing an inner diameter size guided in the retainer as a standard and mounting on a mould of a machining center; and carrying out boring machining on a machining center according to a pre-set procedure. A wind-power self-aligning spherical surface roller bearing of the retainer, machined by the method, has good utilization performance and achieves the national advanced level; and the normal operation requirements of a fan can be completely met on the aspects of reliability and stability. Particularly, an inner stress process eliminating process is adopted and the use effect is relatively ideal.

Description

technical field [0001] The invention relates to a processing method for wind power bearings, in particular to a processing method for a wind power self-aligning spherical roller bearing cage. Background technique [0002] With the rapid development of the national economy, the demand for energy is increasing. Therefore, both at home and abroad are vigorously developing and utilizing new energy sources such as wind energy and solar energy. At present, FD230 / 560 / W33 self-aligning spherical roller bearings are used for wind turbines. The self-aligning spherical roller bearing cage processed according to the traditional process has poor reliability and stability, and cannot meet the needs of the normal operation of the wind power generator. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for processing the cage of a wind power self-aligning spherical roller bearing. The self-aligning spherical roller bearin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 王恒臣
Owner DALIAN METALLURGICAL BEARING
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