2K-H型三级立式行星减速器 毕业设计

编号

本科生毕业设计

2K-H型三级立式行星减速器

2KH planetary gear-type three-level

vertical

学 生 姓 名 专 业 学 号 指 导 教 师 学 院

2011年 6 月

摘要

立式行星减速器具有传动效率高、结构紧凑等优点，在很多产品中得到了广泛的应用。立式行星减速器最早按常规的设计方法，是一件复杂费时的工作，且很难找到最佳配齿方案。通过对2K-H型三级立式行星减速器进行相关设计计算，选出最佳的设计方案。行星轮系设计是在保证承载能力的条件下，能达到行星减速器的体积为最小。

本次设计分析了国内外的减速器发展现状，确定了该设计的总体方案，并且根据课题要求，针对减速器在减速比、负载等方面的要求，设计出能够根据课题要求实现较大减速比的行星减速器。

关键词：行星减速器 机械结构设计 齿轮啮合 传动比

I

Abstract

Vertical transmission planetary gear with high efficiency, compact structure, etc., in many products that have been widely used.Vertical first planetary gear the conventional design method, is a complex and time-consuming work, and very difficult to find the best program with teeth. By three vertical 2K-H type planetary gear design calculations associated, select the best design. Planetary gear design is to ensure the carrying capacity of the conditions, can reach the size of the smallest planetary reducer.

The design of the development status of gear at home and abroad to determine the overall scheme of the design, and according to requirements of the subject, for the gear in the reduction ratio, loading and other requirements, designed according to requirements of the subject to achieve a larger reduction ratioplanetary gear.

Key words: Planetary reducer;Mechanical design;Gears;Drive ratio

II

目录

摘要 ................................................................................................................................................... I Abstract ............................................................................................................................................ II 目录 ................................................................................................................................................... I 第1章 绪 论 ................................................................................................................................... 1

1.1 课题研究的背景 ................................................................................................................ 1 1.2 减速器的国内外发展现状 ................................................................................................ 1 1.3 研究的意义和必要性 ........................................................................................................ 4 1.4. 本文研究的主要内容 ....................................................................................................... 4 第2章 2K-H三级立式行星减速器的结构设计 ........................................................................... 5

2.1 减速器的分类和功能 ........................................................................................................ 5

2.1.1 减速器的分类 ......................................................................................................... 5 2.1.2 行星减速器的功能和特点 ..................................................................................... 5 2.2 立式行星减速器结构方案设计 ........................................................................................ 6

2.2.1 设计要求与安排 ..................................................................................................... 6 2.2.2 设计条件 ................................................................................................................. 6 2.3 初始数据 ............................................................................................................................ 6

2.3.1 基本参数 ................................................................................................................. 6 2.3.2 电动机的选择 ......................................................................................................... 6 2.3.3传动比及其分配 ...................................................................................................... 6

第3章 行星齿轮减速器传动齿轮设计 ......................................................................................... 9

3.1选择齿轮材料，确定许用应力 ......................................................................................... 9 3.2太阳轮柔性轮缘的强度计算 ........................................................................................... 10 3.3太阳轮－行星轮 齿根弯曲疲劳强度校核计算 ............................................................. 11 3.4行星轮－内齿轮 接触疲劳强度校核 ............................................................................. 12 第4章 齿轮其他主要尺寸计算 ................................................................................................... 14

4.1 行星轮系基本尺寸的确定 .............................................................................................. 14 4.2行星齿轮减速器传动轴及其键的设计 ........................................................................... 15 4.3减速器轴承的寿命计算 ................................................................................................... 21 4.4轴上键的设计及校核 ....................................................................................................... 23 4.5减速器轴与轴承的寿命计算 ........................................................................................... 24 4.6齿轮加工工艺 ................................................................................................................... 25 4.7箱体结构尺寸 ...................... …… 此处隐藏：5161字，全部文档内容请下载后查看。喜欢就下载吧 ……