5MW风电齿轮增速箱设计 (一级行星轮系)

摘要

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。

首先，确定齿轮箱的机械结构。选取一级行星派生型传动方案，通过计算，确定各级传动的齿轮参数。对行星齿轮传动进行受力分析，得出各级齿轮受力结果。依据标准进行静强度校核，结果符合安全要求。

最后，对齿轮传动系统进行了齿面接触应力计算，结果符合要求。

关键词：风力发电，风机齿轮箱，结构设计，

Abstract

The rapid development of wind power industry lead to the prosperity of wind power equipment manufacturing industry．As the core component of wind turbine，the gearbox is received much concern from related industries and research institution both at home and abroad．However, 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 foreign technology．Therefore，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．

This paper takes the wind power。The independent design of the gearbox matching for the wind turbine has been carried out by selecting the transmission scheme and calculating the gear parameters。

Firstly, the mechanical structure of gearbox is determined．The two-stage derivation planetary transmission scheme is selected．The gear parameters of every stage transmission is calculated．，and the force analysis results is obtained．The static strength check of tooth surface contact is implemented according to related standard．The result shows that it is accord with safety requirements．

Secondly, the helical gear parametric model is established based on involutes curve equation and generation theory of spiral line by using the function of parametric modeling in Pro／E．

Then, the tooth surface contact stress of the gear transmission is calculated．

Key Words：the wind power ，Gearbox for Wind Turbine；Structure Design；Parametric Modeling

目录

Abstract ____________________________________________________ ii 1.引言_______________________________________________________________ - 1 -

1.1课题来源_______________________________________________________ - 1 -

1.2国内外发展现状与趋势___________________________________________ - 2 -

1.2.1风力发电国内外发展现状___________________________________ - 2 -

1.2.2风电齿轮箱的发展趋势_____________________________________ - 4 -

1.2.3存在的问题及展望_________________________________________ - 5 -

1.3课题意义_______________________________________________________ - 5 -

1.4论文的主要内容及设计要求_______________________________________ - 6 -

1.5设计标准_______________________________________________________ - 7 -

2.齿轮箱的设计 _____________________________________________________ - 8 -

2.1 增速齿轮箱方案设计____________________________________________ - 8 -

2.2齿轮参数确定__________________________________________________ - 11 -

2.2.1行星轮系的齿轮参数______________________________________ - 11 -

2.2.2圆柱级齿轮参数__________________________________________ - 15 -

2.3受力分析与静强度校核__________________________________________ - 16 -

2.3.1受力分析________________________________________________ - 16 -

2.3.2低速级外啮合齿面静强度计算______________________________ - 21 -

2.4本章小结______________________________________________________ - 24 -

3.传动轴和箱体的设计_____________________________________________ - 25 -

3.1高速轴的设计__________________________________________________ - 25 -

3.2低速轴的设计__________________________________________________ - 25 -

3.3中间轴的设计__________________________________________________ - 27 -

3.4箱体__________________________________________________________ - 28 - 4齿轮箱及其他部件的设计_________________________________________ - 29 -

4.1齿轮箱的密封__________________________________________________ - 29 -

4.2齿轮箱的润滑、冷却____________________________________________ - 29 -

4.3轴系部件的结构设计____________________________________________ - 30 -

4.4行星架的结构设计______________________________________________ - 31 -

4.5传动齿轮箱箱体设计____________________________________________ - 31 - 5齿轮箱的使用及其维护____________________________________________ - 32 -

5.1安装要求______________________________________________________ - 32 -

5.2定期更换润滑油________________________________________________ - 32 -

5.3齿轮箱常见故障________________________________________________ - 33 -

5.3.1齿轮损伤________________________________________________ - 33 -