一、前言GJK250型高速重载增速齿轮箱是年产30万吨合成氨DA930-121型离心式空气压缩机的关键部件,主要技术参数如表1及图1。众所周知,齿轮的失效形式通常是磨损、胶合、点蚀、剥落、断齿和塑性变形。为了提高齿轮质量,以满足齿轮的尺寸小、重量轻、承载能力大、使用寿命长的要求,硬齿面齿轮得到越来越广泛的应用。由表2的不 I. Introduction GJK250 high-speed heavy-duty gearbox is a key component of an annual output of 300,000 tons of synthetic ammonia DA930-121 centrifugal air compressor, the main technical parameters such as Table 1 and Figure 1. It is well-known that gear failure forms are usually worn, glued, pitted, spalled, broken teeth and plastic deformation. In order to improve the gear quality, to meet the gear size is small, light weight, load capacity, long life requirements, hardened gears are more and more widely used. Not from Table 2