Special tooling for heat treatment of wind power yaw gear shaft

Abstract

The invention provides a special tooling for heat treatment of a wind power yawing gear shafts. The special tooling comprises an upper loading board and a lower loading board which adopt the same structure and are arranged in parallel up and down; the upper loading board and the lower loading board are connected though supporting columns; the upper loading board and / or the lower loading board comprises (a) frame(s); large round sleeves for placing the gear shafts are arranged in the frame, and equidistantly distributed in the length direction and the width direction; a reinforcing rib is connected between adjacent two large round sleeves; small round sleeves are also arranged in the frame, and equidistantly distributed in the length direction and the width direction; the distances between the small round sleeves and the adjacent each large round sleeve are equal; reinforcing ribs are connected between the small round sleeves and the adjacent large round sleeves; the small round sleeves at the edge of the frame are connected with the frame(s) through the reinforcing ribs. The special tooling is good in mechanical performance and heat dissipation performance, and small in transformation, and can greatly improve the heat treatment effect of the wind power yawing gear shafts.

Description

technical field [0001] The invention relates to a heat treatment tool, in particular to a special tool for heat treatment of a wind power yaw gear shaft. Background technique [0002] Wind energy is a very important energy with huge reserves. It is safe, clean, and abundant, and can provide an endless stream of stable energy. At present, using wind power to generate electricity has become the main form of wind energy utilization, which is highly valued by countries all over the world, and has the fastest development speed. The wind power yaw system is the key system in the wind turbine. Its main function is to cooperate with the control system so that the axis of the nacelle can be aligned with the wind direction quickly and smoothly so as to obtain the maximum wind energy. The gear shaft in the yaw gearbox is one of the key components of the yaw system. Its function is to mesh with the yaw ring gear on the wind turbine to control the wind turbine to rotate in the horizonta...

AI Technical Summary

Problems solved by technology

After the on-site production test, the heat treatment meets the requirements for the depth of the hardened layer, the hardness of the tooth surface and the hardness of the center, but the axial deformation of the gear shaft, the tooth top circle, the dedendum circle and the deformation of the tooth direction are too large, exceeding the required technical indicators , for unqualified products

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