横轴式掘进机截割头设计摘要：随着社会的不断发展和科技水平的不断提高，人类征服自然的领域也在不断扩大，其中比较具有代表性的就是掘进机，掘进机的出现具有很重要的实用意义。

自从掘进机开始进入人们的生活视线，就被广泛地应用到铁路穿山隧道、引水隧道等各施工过程中.掘进机的功能除了能应用在隧道施工外，像以采掘为目的的煤巷开挖、矿巷开掘中也广泛采用了掘进机，这样工作效率高。

以上介绍使用的就是部分断面掘进机，而横轴掘进机是其中的一种。

本次毕业设计就是为了研究横轴式掘进截割头的设计，具体设计内容包括：1.收集基本资料，例如：先对掘进机现在在国内外的发展趋势进行了解，接着对掘进机结构进行学习分析，从而发现掘进机本身有什么需要改进之处，还有就是掘进机对截割的矿岩都有什么要求等；2.对资料进行学习和总结。

将自己收集的数据进行整理列表，这样看起来一目了然；3.CAD的学习制作等。

通过简单的CAD软件学习，将自己想要设计的截割头画出来。

并通过计算得到基本数据，进行数据分析和结构分析相结合。

对掘进机的具体结构用途也要进行了解和掌握，这样有利于截割头的整体计算。

掘进机结构的优化设计和制造精度对今后的工作性能都会有决定性的影响因为截割头是掘进机的核心部位，所以它的研究自然也就成了重中之重。

煤炭是人类生产生活的重要能源，随着工业的不断发展，生产规模的不断扩大，煤炭在国民经济中的地位也显得越来越重要。

随着采煤机械化的发展，大大提高了工作面的广度，对开采强度，工作面的推进速度要求也越来越快，这就要求加快掘进速度，提高工作效率以适应人们对工具的需求。

切割头是掘进机的工作机构，它的主要功能就是破碎岩石或者分离煤层。

经过对煤岩切割过程的研究了解，认识到影响切割效果的因素很多，因而掘进机截割头的设计变的复杂许多。

为提高工作效率，加快生产力，满足人们对机械化的高要求，截割头的设计成了重中之重。

如果在截割头的每一转中，参加切割的各个截齿都能同时从岩石中切下等体积的煤岩，也就是每个镐齿的受力相等，磨损程度也相同，机械运动也比较平稳，只有满足这些要求，才可以达到自己当初设计的初衷。

关键词：横轴；掘进机；截割头；截割头参数；截齿Design of horizontal road header cutting headAbstract: with the continuous improvement of the continuous development of society and the level of science and technology,the human conquest of natural areas also continues to expand,which compares with representative is boring machine,boring machine has very important practical significance.Since the tunneling machine began to enter people's life line of sight,it was widely applied to the process of construction of railway tunnel,diversion tunnel.Tunnel boring machine in addition to the application in tunnel construction,like the excavation for the purpose of coal roadway excavation,mine roadway excavation is widely used boring machine,so work efficiency.This is the use of the road header machine,and horizontal boring machine is one of them.This graduation design is to study the boring cutting head design,the specific design content includes:1 the collection of basic data,such as:first,to understand the development trend at home and abroad the boring machine now,then the analysis of boring machine boring machine structure,which found itself is what needs to be improved,and is the road header to rock cutting is what are the requirements；2 were studied and summarized.Their collecting data list,it seems clear；3.CAD learning production.Through the CAD software simple to learn,will you want to design the cutting head drawn and get the basic data.Through the calculation,data analysis and structural analysis.The specific structure of the combination use of boring machines to understand and master,this is conducive to the overall cut cutting head is calculated.Optimization design and manufacture of precision boring machine structure will have a decisive impact because the cutting head is the core part of the tunneling machine to work performance in the future,so it has become a priority among priorities.Coal is the important energy production of human life,along with the continuous development of industry,the scale of production expanding the position of coal in the national economy is becoming more and more important.With the development of coal mining mechanization,greatly improving thework of the breadth,mining intensity,working face advancing speed is faster and faster,it is required to accelerate the tunneling speed,improve work efficiency to adapt to the demand of the tool cutting head.Is the working mechanism of roadheader,its main function is to break rock or coal separation.After studying for the coal rock cutting process,there are many factors to influence the effect of cutting,and boring machine Cut cut head design becomes more complex.In order to improve the work efficiency,accelerate productivity,meet the people demanded of mechanization,cut cutting head is designed into the top priority.If in cutting head of each turn,in each cutting cutter can also from the rock cut product of inferior coal and rock,is each pick tooth force equal,wear the same,mechanical movement is relatively stable, only to meet these requirements before they can reach their original design intention.Keywords: horizontal axis；boring machine；cutting head；cutting parameters；cutting teeth目录摘要 (II)Abstract (Ⅱ)目录 .......................................................................................................................................... I V 第一章绪论 . (2)1.1 引言 (2)1.2 掘进机分类 (4)1.3 国内外横轴式掘进截割机的发展状况 (6)第二章截割头参数经验的确定 (9)2.1 截割头的形式及尺寸参数 (9)2.1.1 横向截割头的外形 (9)2.1.2 截割头最大直径 (9)2.2 截齿的形式及尺寸参数 (10)2.2.1 截齿的形式 (10)2.2.2 镐形齿的结构 (10)2.2.3刀头结构 (11)2.3 截齿的空间排布 (12)2.3.1 等升角空间螺旋线 (12)2.3.2 排列参数的确定 (14)2.3.2.1 螺旋升角 (15)2.3.2.2 螺旋线头数 (15)2.4 截齿的空间 (15)2.4.1 切削功能描述法 (16)2.4.1.1 切削角δ (16)2.4.1.2 扭转角ε (17)2.4.1.3 旋转角 (18)第三章截齿及截割头的运动及力学分析 (19)3.1 截割头的运动 (19)3.2 截齿的运动分析 (19)3.3 截齿的受力分析 (19)3.4 截割头的整体受力 (20)第四章矿岩的相关特性及截割机理 (22)4.1 矿岩的相关特性 (22)4.1.1 压松效应 (23)4.1.2 截割阻抗 (24)4.1.3 崩落角 (24)4.2 截割机理 (25)4.2.1 矿岩的截割破碎机理 (26)4.2.2 截割力分析 (27)4.3 新的截割技术 (28)4.3.1 振动截割 (28)4.3.2 高压细射流助切技术 (29)总结与展望 (29)参考文献 (31)致谢 (31)1第一章绪论1.1 引言随着社会科技水平的高速发展，人类征服自然的能力也在日益提高，掘进机就是其中的一个重要表现。