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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
Abstract
With 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
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