三排链少齿差行星齿轮减速器

目录

中文摘要 (2)

英文摘要 (3)

1引言 (4)

1.1综述 (4)

1.2少齿差行星传动概述 (4)

1.3链条行星减速器的特点 (5)

1.4链条行星减速器的结构 (6)

2初步设计及计算 (7)

2.1工作原理及结构设计 (7)

2.2链条节数及链轮齿数计算 (8)

2.3链轮分度圆直径的计算 (9)

2.4初步拟定部分零件尺寸 (10)

2.4.1输入轴、偏心距的计算，转臂轴承的选择 (10)

2.4.2输出轴、w机构的计算，其他标准件的选择 (11)

3主要零件的强度及寿命校核 (12)

3.1行星轮受力分析 (12)

3.2转臂轴承耐用寿命计算 (14)

3.3行星轮齿面接触强度校核 (15)

3.4W机构强度校核 (16)

3.5输入轴疲劳强度校核 (17)

3.5.1受力分析 (17)

3.5.2强度校核 (19)

3.6输出轴疲劳强度校核 (19)

3.6.1受力分析 (19)

3.6.2强度校核 (20)

3.7销轴与销轴孔接触强度校核 (21)

4链条行星减速器设计中的一些问题 (21)

4.1密封问题 (21)

4.2润滑问题 (22)

4.3齿廓形成理论 (23)

4.3便服系数K的选择 (26)

结论 (29)

致谢 (29)

参考文献 (30)

三排链少齿差行星减速器设计之一

摘要：链式少齿差行星减速器具有传动比大、传动效率高、传动平稳、噪声小、结构紧凑、体积小、耐冲击、寿命长的优点，但是制造工艺较复杂，如偏心轴套需要专门的偏心磨床加工。该减速器结构与渐开线少齿差行星齿轮减速器及摆线针轮减速器相似，它采用两个对称布置的链轮作为行星轮，行星轮与三排链中的两排啮合，而三排链通过与固定链轮啮合固接在箱体上，作为中心轮。两个行星轮通过圆柱滚子轴承与偏心套筒相连，偏心套筒通过键与输入轴连接，两个行星轮的相位角差180°。其主要设计过程与渐开线少齿差

行星齿轮减速器的设计过程相似，但在零部件设计和计算上有较大区别。该型链式少齿差行星减速器的设计重点在于偏心距及链轮齿形的选择，以防止出现干涉。另外需要合理的布置结构，使减速器达到结构和成本上的优化。

关键词：减速器三排链少齿差行星传动

Abstract：This chain reducer with fewer tooth differenced planetary transmission shows the nature of working stability,low noise,compact structure,long life,high

transmitting ratio,big load capability and high efficiency in conveying,but the

manufacturing technology is complicated.The structure of speed reducer with

fewer tooth difference is similar with the involute less differential planet gear

reducer and cycloidal-pin gear speed reducer.It use sprocket instead of center

wheel and planetary wheel in the involute less differential planet gear reducer,

and use three rows roller chain instead of the solar wheel to complete

planetary drive.Two rows engage with planetary wheels,another row engage

with fixed sprocket,and fixed sprocket wheel was fixed to the cabinet.Two

planetary wheels connect with eccentric bushings through cylindrical roller，

cylindrical roller connect with input shaft through key bolt.The main design

process is similar with the design of involute less differential planet gear

reducer,but in the design and calculation of components have great

differences.The designof this speed reducer key lies in the choice of

eccentricity and chainwheel.And need arrange the stracture reasonably,so as

to reduce costs and the stracture.

Keywords：reducer triplex roller chain fewer tooth difference

planetary transmission