Method for machining yawing gear ring

A processing method and technology for a ring gear, applied in the processing field of the ring gear, can solve the problems of the reliability and poor stability of the yaw ring gear, the unsatisfactory braking effect of the yaw ring gear, and the inability to meet the needs of the normal operation of the wind turbine. , to achieve the effect of good process performance and ideal braking effect

Active Publication Date: 2014-05-07
DALIAN METALLURGICAL BEARING
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the reliability and stability of the yaw ring gear processed according to the traditional process method are poor, which cannot meet the needs of the normal operation of the wind turbine, especially the braking effect of the yaw ring gear has not been ideal.

Method used

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  • Method for machining yawing gear ring
  • Method for machining yawing gear ring
  • Method for machining yawing gear ring

Examples

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Embodiment Construction

[0021] A method for processing a yaw ring gear, comprising the following process steps:

[0022] 1. Fix the yaw ring gear blank on the workbench of the CNC vertical lathe, position and clamp it with a jig, then start the CNC vertical lathe, and carry out rough machining according to the set size. Make sure to leave two braking surfaces and inner holes machining allowance;

[0023] 2. Quenching and tempering the rough-machined yaw ring gear in step 1 after normalizing, and finish turning after passing the inspection by the managerial test center;

[0024] 3. Remove the turning stress, and perform high temperature tempering after turning, the tempering temperature is 450-540°C;

[0025] 4. Refine the size of each part of the above-mentioned yaw ring gear after high-temperature tempering, and leave 2.0mm nitriding allowance for the outer tooth surface;

[0026] 5. Drilling and milling center drilling and tapping;

[0027] 6. A bowl-shaped white corundum grinding wheel with a p...

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Abstract

The invention discloses a method for machining a yawing gear ring. The method comprises the following steps of: roughly machining a yawing gear ring blank according to the set dimension through a numerical control vertical lathe; normalizing the yawing gear ring subjected to rough machining, tempering, performing finish turning, and tempering at the temperature of between 450 and 540 DEG C after finish turning; performing finish turning on dimensions of all parts, milling and drilling a central bore, and tapping; machining through a composite vertical grinder after milling and drilling the central bore and tapping, wherein rotating speed of a grinding wheel is 1,000 to 1,200n / s; rotating the grinding wheel clockwise, and rotating a workpiece anticlockwise; and finally, performing heat treatment nitridation and tooth quenching in turn through a horizontal numerical control machining center. The invention has the advantages that: the yawing gear ring produced and machined through the process has high technical performance and reaches a domestic advanced level, and a requirement of normal operation of a fan can be completely met in reliability and stability; and particularly due to a process for machining a braking surface, a braking effect is more ideal.

Description

technical field [0001] The invention relates to a processing method of a ring gear, in particular to a processing method of a megawatt yaw ring gear. 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, there are two main structures for products in the yaw field of megawatt wind turbines, namely yaw bearings and yaw ring gears. At present, the reliability and stability of the yaw ring gear processed according to the traditional process method are poor, which cannot meet the needs of the normal operation of the wind turbine, especially the braking effect of the yaw ring gear has not been ideal. Contents of the invention [0003] The object of the present invention is to provide a method for processing a yaw ring gear. The yaw ring gear processed by the method of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
Inventor 韩庆富高清华
Owner DALIAN METALLURGICAL BEARING
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