风力发电机组齿轮与风机日常维护 毕业论文

毕业论文

姓名：

系：电气系

专业：风力发电安装与维护

题目：风力发电机组齿轮与风机日常维护指导者：

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。

其次，基于Pro／E参数化建模功能，运用渐开线方程及螺旋线生成理论，建立斜齿轮的三维参数化模型。

然后，对齿轮传动系统进行了齿面接触应力计算。先利用常规算法进行理论分析计算。

关键词：风力发电，风机齿轮箱，结构设计，建模

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

中文摘要……………..…………………………………………..……….….……………….. .I Abstract……………………………...……………..…………………………..…………

1．0 引言

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

1.2.2风电齿轮箱的发展趋势

1.3课题意义 (3)

1.4论文的主要内容 (3)

2．0 齿轮箱的设计 (5)

2.1 增速齿轮箱方案设计 (5)

2.2齿轮之行星齿轮系 (7)

2.2.1行星轮系的齿轮齿 (7)

2.3受力分析与静强度校核 (9)

2.3.1受力分析

2.3.2低速级外啮合齿面静强度计算

2.4本章小结

3．0 传动轴和箱体的设计

3.1高速轴的设计

3.2低速轴的设计

3.3中间轴的设计

3.4箱体