大型重载齿轮在能源、交通、矿山、冶金、化肥等成套设备中处于核心部位,对主机的运行性能和寿命影响极大,而大型重载精密齿轮的制造是这些设备在维修和立足国内自制中必须要解决的关键问题。当前,大型齿轮的制造、测试与国外差距很大,是一个薄弱环节。鉴于此,国家要将大型齿轮制造技术作为 Large heavy-duty gear in the energy, transportation, mining, metallurgy, fertilizer and other complete sets of equipment at the core of the host operating performance and life expectancy greatly affected, and large heavy-duty precision gear manufacturing these devices in the maintenance and based domestic self In the key issues that must be solved. At present, large-scale gear manufacturing, testing and foreign disparities, is a weak link. In view of this, the country should make large-scale gear manufacturing technology as