课程设计 采煤机截割部传动系统设计.doc

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课程设计 采煤机截割部传动系统设计,毕业论文 标准word格式排版 25 页摘 要我国薄煤层资源丰富,可采储量约占总可采储量的19%,而且分布广、煤质好。薄煤层采煤机械化经过多年的发展,取得了一定的成效,但由于薄煤层采煤工作面生产条件艰难,长期存在推进速度慢,效率低、经济效益差等突出问题。特别是有些矿井厚、薄煤层并存,薄煤层作为解放层开采,由于薄煤层开采...
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此文档由会员 莎士比亚 发布

毕业论文 标准WORD格式排版 25 页

摘 要
我国薄煤层资源丰富,可采储量约占总可采储量的19%,而且分布广、煤质好。薄煤层采煤机械化经过多年的发展,取得了一定的成效,但由于薄煤层采煤工作面生产条件艰难,长期存在推进速度慢,效率低、经济效益差等突出问题。特别是有些矿井厚、薄煤层并存,薄煤层作为解放层开采,由于薄煤层开采速度缓慢,使下部厚煤层资源长期得不到开采,影响采煤工作面的正常接替,甚至被迫丢失一部分薄煤层资源。研制适合的薄煤层采煤机,以适应不同的煤层结构,提高薄煤层采煤的工作效率是当务之急。
虽然薄煤层采煤机的型号、规格有许多,但它的各主要组成部分大同小异,合理选择薄煤层采煤机的截割部的参数,可以改善其工作性能和减少采煤比能耗。选择这个题目就是要进一步熟悉薄煤层采煤机各部分的工作原理,对其进行更好的改进,并对它的截割部减速器进行细致分析设计,使其耐用并且省时省力容易装修,使其在工作中能够有更好的经济效益。对于现在使用较为广泛的薄煤层采煤机的减速器中存在的锥齿轮,影响电动机的安放和使用寿命,针对此处进行改进。
关键词:薄煤层采煤机;截割机构;减速器。


Abstract
Thin seam in China is rich in resources, recoverable reserves total recoverable reserves of 19 percent, and widely distributed, coal good. Thin seam coal mining mechanization after years of development, has achieved some results, but because of thin seam coal face difficult production conditions, promote the long-standing slow, low efficiency, poor outstanding problems in economic benefits. Especially some of mine thick, thin seam coexist as a liberation layer thin seam mining, as a result of the slow pace of thin coal seam, so that the lower part of thick coal seam is not a long-term exploitation of resources, affecting the normal coal face to succeed, and even forced the loss of part of a thin coal resources. Development of suitable thin seam shearer in order to adapt to different seam structure and improve the thin seam coal mining efficiency is a priority.
Although the thin coal seam shearer models, specifications there are many, but it is the major component of the more or less the same, a reasonable choice of thin coal seam shearer cutting unit parameters, can improve its performance and reduce power consumption than coal. Choose this subject is to become more familiar with the thin coal seam shearer parts of the working principle, its better to improve, and its cutting unit carried out a detailed analysis of reducer design, make it durable and easy to save time and manpower on decoration, their work can have a better economic benefits. For now the more extensive use of thin coal seam shearer reducer existing bevel gears, the impact of the installation and service life of electric motors for improved here.
Key words: thin coal seam shearer; cutting institutions; reducer.

目 录
1引言…………………………………………………………6
2薄煤层采煤机主要技术参术………………………………7
2.1截深……………………………………………………7
2.2 采高……………………………………………………8
2.3牵引速度………………………………………………8
2.4牵引力…………………………………………………9
2.5截割速度………………………………………………10
2.6装机功率………………………………………………10
3截割部减速器的具体设计说明……………………………11
3.1电动机的选择………………………………………… 11
3.2 传动装置的运动和动力参数计算…………………… 12
3.3 齿轮部分设计………………………………………… 13
3.4轴的设计……………………………………………… 18
4技术特点………………………………………………………24
5 结论……………………………………………………………25