Wind power gear box main shaft repair method

Abstract

The invention relates to a wind power gear box main shaft repair method, which comprises the following steps of (1) detecting a part appearance; (2) processing a damaged surface of a main shaft; (3) clamping the main shaft onto a machine tool, aligning a main shaft baseline, adjusting a protective gas ventilation device, a laser and a powder feeding device, and setting parameters of the laser; (4)starting the machine tool to enable the main shaft to start to rotate, and then starting the protective gas ventilation device, the laser and the powder feeding device; (5) after accomplishing cladding, grinding a cladding layer to a required size, and carrying out flaw detection; and (6) reusing a qualified product after flaw detection, and re-repairing an unqualified product from the step (2).The processing manners in the step (2) comprise turning, milling and grinding. The machine tool in the step (3) and the step (4) is a turning lathe. The wind power gear box main shaft repair method provided by the invention realizes a remanufacturing technology, is applied to repairing a wind power gear box main shaft, and is material, energy and cost-saving, and higher in economic benefit.

Description

technical field [0001] The invention relates to the technical field of repairing a main shaft of a gearbox, in particular to a method for repairing a main shaft of a wind power gearbox. Background technique [0002] The main shaft is one of the core parts in the wind power gearbox, and its production is time-consuming and expensive. As a high-load rotating part, the main shaft has a serious problem of shaft diameter wear. Once worn, it needs to be removed and replaced, otherwise the wind turbine cannot work normally. For high-value parts such as the spindle, the economic cost of directly discarding the damaged spindle and replacing it with a new one is too high to accept. Therefore, it is extremely necessary to repair the damaged spindle. Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art, meet the demand for main shaft repair, and provide a wind power gearbox main shaft repair method. [0004] In order to achieve the above o...

AI Technical Summary

Problems solved by technology

[0002] The main shaft is one of the core parts in the wind power gearbox, and its production is labor-intensive, time-consuming and expensive

As a high-load rotating part, the main shaft has a serious problem of shaft diameter wear. Once it is worn out, it needs to be removed and replaced, otherwise the wind turbine cannot work normally.

For high-value parts such as the spindle, the economic cost of directly discarding the damaged spindle and replacing it with a new one is too high to accept. Therefore, it is extremely necessary to repair the damaged spindle

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