发布时间 : 星期四 文章2Z-X型NGW啮合两级行星齿轮减速器设计更新完毕开始阅读
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毕业设计(论文)
2Z-X型NGW啮合 两级行星齿轮减速设计
学 号： 姓 名： 专 业： 系 别： 指导教师：
二○一五年六月
摘 要
本文完成了对2Z-X型NGW啮合方式两级行星齿轮减速的设计。该减速器具有较小的传动比，而且，它具有结构紧凑、传动效率高、外廓尺寸小和重量轻、承载能力大、运动平稳、抗冲击和震动的能力较强、噪声低的特点。
首先简要介绍了课题的背景以及齿轮减速器的研究现状和发展趋势，然后比较了各种传动结构，从而确定了传动的基本类型。论文主体部分是对传动机构主要构件包括太阳轮、行星轮、内齿圈及转臂的设计计算，通过所给的输入功率、传动比、输入转速以及工况系数确定齿轮减速器的大致结构之后，对其进行了整体结构的设计计算和主要零部件的强度校核计算。最后对整个设计过程进行了总结，基本上完成了对该减速器的整体结构设计。
关键词：行星齿轮；传动机构；结构设计；校核计算
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ABSTRACT
This paper completed the 2Z-X of NGW structural design of the planetary gear reducer. The reducer has a smaller gear ratio, and it has a compact, high transmission efficiency, small size and light weight profile, large carrying capacity, smooth movement, a strong ability to shock and vibration, low noise characteristics.
Briefly introduces the background and current situation and development trend of research topics gear reducer, and then compare the various transmission structure, which determines the basic types of transmission. The main part of the paper is the main member of the transmission mechanism including a sun gear, planetary gear, the ring gear and the planet carrier is designed to calculate, by means of a given input power, the transmission ratio, the input rotation speed and the operating conditions to determine the approximate coefficients after the configuration of the gear reducer its strength check calculation carried out to calculate the overall structure and design of the major components. Finally, a summary of the entire design process, basically completed the overall structural design of the reducer. KEYWORDS：Planetary gear; transmission mechanism; Structural design; Checking calculation
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目 录
I 摘 要 ................................................................................................................................. ABSTRACT ...................................................................................................................... II 目 录 .............................................................................................................................. III 1绪论 ................................................................................................................................. 1 1.1研究背景及意义 ...................................................................................................... 1 1.2行星齿轮减速器研究现状 ...................................................................................... 1 1.3行星齿轮减速器发展趋势 ...................................................................................... 2 1.4论文的基本内容 ...................................................................................................... 2 2总体方案设计 ................................................................................................................. 3 2.1设计要求 .................................................................................................................. 3 2.2总体方案选择 .......................................................................................................... 3 2.2.1行星机构的类型及特点 ................................................................................... 3 2.2.2确定行星齿轮传动类型 ................................................................................... 5 3齿轮的设计计算 ............................................................................................................. 6 3.1配齿计算 .................................................................................................................. 6 3.2初步计算齿轮的主要参数 ...................................................................................... 7 3.2.1计算高速级齿轮的模数m ............................................................................... 7 3.2.2计算低速级的齿轮模数m ............................................................................... 7 3.3啮合参数计算 .......................................................................................................... 8 3.3.1高速级 ............................................................................................................... 8 3.3.2低速级 ............................................................................................................... 8 3.3.3高速级变位系数 ............................................................................................... 9 3.3.4低速级变位系数 ............................................................................................... 9 3.4几何尺寸的计算 ...................................................................................................... 9 3.4.1 高速级 .............................................................................................................. 9 3.4.2 低速级 ............................................................................................................ 10 3.4.3插齿刀齿根圆直径的计算 ............................................................................. 10 3.5装配条件的验算 .................................................................................................... 11 3.5.1邻接条件 ......................................................................................................... 11 3.5.2同心条件 ......................................................................................................... 11 3.5.3安装条件 ......................................................................................................... 12
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