Molding method for milling large module gear for wind power generation

Abstract

The invention relates to a molding method for milling a large module gear for wind power generation, which comprises the following steps: starting and operating an operating platform of a gear milling machine in a normal mode; fixing and adding an electric spindle on a gear box of the gear milling machine, adjusting the electric spindle to be vertical to the operating platform, and correcting the platform surface through a cutter holder milling tool or grinding wheel attached to the electric spindle; fixing a cutter blade on a milling cutter plate; roughly milling the gear; finely milling the gear to be in a specified size; generating a standard mathematical model of a processed involute gear in a computer by utilizing the geometrical parameters of the processed gear; and confirming the tooth profile precision by comparing a projecting apparatus or manufactured high-precision sample with a processed tooth profile. The molding method provided by the invention has the beneficial effects that: the twice milling of rough milling and fine milling can ensure that the large module gears for wind power generation produced in batches meet the demand on batch production, and the precision of the processed gear meets the national standard eight-level precision.

Description

technical field [0001] The invention relates to a gear milling forming method, in particular to a gear milling forming method with large modulus (modulus 12-20) for wind power generation. Background technique [0002] Clean energy wind power generation has developed rapidly in recent years. With the increase of wind power generation power, the power generation capacity of a single fan has also increased rapidly. The installed power of a single fan has increased from 750 kW to 1500 kW and 3000 kW. The diameter of the pitch and yaw bearings is getting bigger and bigger. The outer diameter of the pitch bearing of the 3 MW wind turbine has reached 2.5 meters, and the outer diameter of the yaw bearing has reached 3.2 meters. [0003] When the traditional gear processing methods such as gear hobbing and gear shaping are used to process large modulus and large diameter bearings, the work efficiency is low. For example, if a gear with a diameter of 3.2 meters, a height of 150 mm, ...

AI Technical Summary

Problems solved by technology

[0003] When traditional gear processing methods such as gear hobbing and gear shaping are used to process large modulus and large diameter bearings, the work efficiency is low

For example, if a gear with a diameter of 3.2 meters, a height of 150mm, and a modulus of 20 is processed by gear shaping, it will take more than 24 hours to process a workpiece, which cannot meet the production needs of large-scale bearings.

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