摘要随着煤炭行业机械化程度的加快，煤炭行业以前只是重视采煤的机械化，大多数的煤炭行业很少有在掘进方面有较大的投入和研究，这样就造成了采掘速度远远大于开拓速度，此时怎样来提高出煤量，开拓的机械化就显得极其重要了。
作为我国主要能源的煤炭资源在开采上日趋机械化的同时，迫切需要拥有先进的掘进机械，掘进机的研制成功标志着我国的煤炭行业已达到世界的先进水平。
掘进机截割机构是掘进机的主要组成部分，按照掘进机截割部的总体、动力部分、传动部分以及执行部分的设计思路进行掘进机截割部的设计。
在设计时，动力部分做选型计算，传动部分的行星减速机构做具体的设计计算和校核，执行部分只对执行元件进行设计计算和校核。
设计对于提高和改进掘进机工作性能，发展我国大口径全断面掘进机产业以及进一步提高我国的盾构研发能力、改善研发条件具有重大战略意义。
关键词：掘进机; 截割臂; 行星减速器AbstractWith the accelerating of coal industry, the degree of mechanization mining coal industry is the importance before, the most mechanized excavating in coal industry has rarely have large investment and research, thus causing the mining speed than develop, how to improve the speed of coal, development of a mechanized appears very important. As our main source of energy in the exploitation of coal resources in the increasingly urgent need, mechanized excavating the advanced mechanical, swinging the successful development of the coal industry, China has reached the advanced world level.Determing cutting mechanism is the main component, the product in accordance with the overall determing cutting parts, power transmission part and the part, the part of the design thought for the design of determing cutting. In the design, selection of part, transmission parts of planetary gearhead institutions do specific design calculation and test execution part only, design calculation of actuators and checking. Design for improvement in China, the development work performance swinging big caliber, whole section roadheader industry and further enhance our shield developing capability, improve development condition with the strategic significance.Key words：roadheader ; cutting arm ; planetary-gear drive目录摘要 (I)Abstract (II)第1章绪论 (1)1.1掘进机的作用和分类 (1)1.1.1掘进机在煤矿领域中的作用 (1)1.1.2掘进机的分类 (1)1.2国内外悬臂式掘进机的现状和发展趋势 (2)1.2.1国外悬臂式掘进机的现状和发展趋势 (2)1.2.2 国内悬臂式掘进机的现状和发展趋势 (3)1.3论文的主要研究内容及意义 (5)第2章悬臂式掘进机截割部的结构设计和动力装置的选择 (6)2.1掘进机截割机构设计方案选择 (6)2.1.1整体形式选择 (6)2.1.2截割头布置方式选择 (6)2.1.3纵轴式悬臂掘进机的结构组成 (7)2.2截割部的设计参数 (8)2.3截割部的总体结构设计 (8)2.4截割部对电动机的要求 (9)2.5截割电动机的选择 (10)第3章悬臂式掘进机截割部的传动装置 (11)3.1二级行星减速器齿轮的设计计算 (11)3.1.1二级行星减速器齿轮传动比的分配 (11)3.1.2二级行星减速器高速级齿轮的设计计算和校核 (13)3.1.3二级行星减速器低速级齿轮的设计计算和校核 (27)3.2二级行星减速器输入输出轴的设计计算 (40)3.2.1二级行星减速器输入轴的设计计算 (40)3.2.2二级行星减速器输出轴的设计计算 (44)3.3二级行星减速器轴承的校核 (46)3.3.1二级行星减速器齿轮用轴承的选择和校核 (46)3.3.2二级行星减速器输入输出轴用轴承的选择 (52)第4章悬臂式掘进机截割臂的设计计算 (54)4.1截割头轴的设计计算和校核 (54)4.2截割头轴用轴承的选择和校核 (60)结论 (62)致谢 (63)参考文献 (64)CONTENTSAbstract (II)Chapter 1 Introduction (1)1.1The role of TBM and classification (1)1.1.1 Boring machine in the role of the field (1)1.1.2 Boring machine classification (1)1.2Domestic and foreign roadheader status and development trend (2)1.2.1 Foreign roadheader status and development trend (2)1.2.2 Domestic roadheader status and development trend (3)1.3The main research content and meaning (5)Chapter 2Rdadheader cutting unit of the strucure and the choice of power plant (6)2.1Mechanism design of cutting selection (6)2.1.1 Select the whole form (6)2.1.2 Cutting head lay out option (6)2.1.3 Longitudinal cantilever structure and composition of TBM (7)2.2Cutting part of the design parameters (8)2.3Cutting the overall structure of the department of design (8)2.4Cutting the request of thedepartment of motor (9)2.5Selection of cutting motor (10)Chapter 3Roadheader gear cutting unit (11)3.1Stage planetary gear design and calculation (11)3.1.1 Two level planetary gear design and calculation (11)3.1.2 Two high-level planetary gear reducer design calculation andverification (13)3.1.3 Two low-level planetary gear reducer design calculation andverification (27)3.2Two evel planetary reducer design and calculation of input and output shaft (40)3.2.1 Two level planetary reducer input shaft design calculation (40)3.2.2 Two level planetary reducer output shaft design calculation (44)3.3Two level planetary reducer bearing checking (46)3.3.1 Two level planetary gear selection and check with the bearing (46)3.3.2 Two level planetary reducer output shaft (52)Chapter 4Roadheader cutting arm of the design calculation (54)4.1The cutting head design calculation and verification (54)4.2The cutting head shaft bearings selection and verification (60)Conclusions (62)Thanks (63)References (65)第1章绪论1.1掘进机的作用和分类1.1.1掘进机在煤矿领域中的作用掘进机主要由行走机构、工作机构、装运机构和转载机构组成。
随着行走机构向前推进，工作机构中的切割头不断破碎岩石，并将碎岩运走。
有安全、高效和成巷质量好等优点，但造价大，构造复杂，损耗也较大。
掘进机的主要功能是剥落煤岩，能掘出不同的巷道断面尺寸。
在给定所掘巷道的地质情况下，有较高的生产率。
掘进机在井下不但用于巷道的掘进，在对一些特殊的煤和煤岩也起到采掘作用。