1、 i 摘摘 要要 风电产业的飞速发展促成了风电装备制造业的繁荣，风电齿轮箱作为风电 机组的核心部件，倍受国内外风电相关行业和研究机构的关注。但由于国内风电 齿轮箱的研究起步较晚，技术薄弱，特别是兆瓦级风电齿轮箱，主要依靠引进国 外技术。因此，急需对兆瓦级风电齿轮箱进行自主开发研究，真正掌握风电齿轮 箱设计制造技术，以实现风机国产化目标。 本文设计的是兆瓦级风力发电机组的齿轮箱，通过方案的选取，齿轮参数计 算等对其配套的齿轮箱进行自主设计。 1）根据风电齿轮箱承受载荷的复杂性，对其载荷情况进行了分析研究,确定 齿轮箱的机械结构。选取两级行星派生型传动方案，在此基础上进行传动比分配 与各级传动参数
2、如模数，齿数，螺旋角等的确定；通过计算，确定各级传动的齿 轮参数；选择适当的齿轮。 2）对行星齿轮传动进行受力分析，得出各级齿轮载荷结果。依据标准进行 静强度校核，结果符合安全要求。 3）绘制 CAD 装配图，并确定恰当合理参数。 关键词关键词：风电齿轮箱；风力发电；结构设计。 ii ABSTRACT The rapid development of wind power industry lead to the prosperity of wind power equipment manufacturing industry As the core component of wind tur
3、bine， the gearbox is received much concern from related industries and research institution both at home and abroadHowever, due to the domestic research of gearbox for wind turbine starts late，technology is weak，especially in the gearbox for MW wind turbine，which mainly relied on the introduction of
4、 foreign technologyTherefore， it is urgent need to carry out independent development and research on MW wind power gearbox，and truly master the design and manufacturing technology in order to achieve the goal of localization 1） The load Cases of gearbox for wind turbines ale analyzed， and the interr
5、elation of loading cycle numbers under different torque levels is deduced according to the curve of materialsfatiguethe mechanical structure of gearbox is determinedThe two-stage derivation planetary transmission scheme is selectedThe gear parameters of every stage transmission is calculated ，and th
6、e force analysis results is obtained 2）the static strength check of tooth surface contact is implemented according to related standardThe result shows that it is accord with safety requirements 3）Draw CAD drawings, and determine appropriate reasonable parameters. KEYWORDS：Gearbox for Wind Turbine；the wind power；Structure Design. iii 目目 录录 第一章第一章 前前 言言 -iii 1.1 国内外发展现状与趋势国内外发展现状与趋势 -
