1、大学毕业设计说明书 I 摘摘 要要 截割部摇臂传动设计部分是本设计首先要作的工作。设计中首先确定了摇臂内各 零部件的传动方案、分配传动比、初步确定个齿轮的齿数、齿轮的设计计算及其校核、 行星机构的设计计算、轴的设计计算及其校核、并初步选取了轴承和键，以及简要分 析了各个零部件的作用。最终通过分析计算完成了截割部摇臂传动设计过程。 设计中的重点及难点是以参数化设计思想为依据，以开发专业化的计算机辅助设 计系统为目的，采用 Visual-Basic 为编程语言，以 ACCESS 为数据库支撑，开发研制 了集几何参数设计、承载能力计算、技术文件生成与管理为一体的综合型渐开线齿轮 辅助设计系统 ,对提
2、高渐开线齿轮设计的效率、可靠性具有重要意义。 关键词：关键词：截割部；行星机构；渐开线齿轮； 参数化设计； 计算机辅助设计 大学毕业设计说明书 II Abstract The part of cutting department rocker-arm drive design is this graduation project most important work. I firstly determined the transmission programme, distribution transmission ratio of various parts of the rocker,
3、initially set the teeth of gears, the design and calculation of gear and checking, the design of planetary bodies, the design calculation and verification of axis ,and preliminary selected bearings and key, then briefly analyze the function of spare parts as well as the role of the various component
4、s.In the end, according to analysising and calculation finish the proess of the part of cutting department rocker-arm drive design. It is as a key and a difficult point that the study is based on the thought of the parameters design and with the purpose of the professionalcomputer aided design syste
5、m. In the design it developed a computer aided design system of the involute gear with parameters design , carrying capacity calculation , technical files creation and management supported by database ofACCESS. So it makes an important meaning for efficiency and reliability of the involute gear desi
6、gn. Key wordsKey words: cutting unit;planetary bodies;within the spray system involute gear ;parameters design ;computer aided design 大学毕业设计说明书 III 目目 录录 摘 要 I ABSTRACT II 第一章 绪 论 . 1 1.1 采煤机的概述 . 1 1.2 采煤机齿轮传动的计算机辅助设计 . 1 第二章 采煤机截割部设计及强度计算 . 3 2.1 采煤机截割部传动系统方案的选择 . 3 2.1.1 摇臂传动方案的选择 3 2.1.2 截割部电动机的选择 3 2.1.3 分配传动比 3 2.1.4 初选各个齿轮齿数 3 2.2 传动轴功率、扭矩的计算 . 4 2.2.1 计算各轴的转速 4 2.2.3 各轴转矩的计算 5 2.3 齿轮的设计和计算 . 6 2.3.1 设计齿轮 1、2 . 6 2.3.2 选择齿轮材料及确定其许用应力 6 2.3.3 按齿轮弯曲疲劳强度设计 6 2.3.4 确定许用弯曲应力FP 6 2.3.5 选取载荷系数
