综采工作面转载锤式破碎机总体设计

论文编号:JX254 所有图纸,外文翻译。论文字数:45141.页数:95

摘  要

随着我国煤炭、冶金矿山向大型化发展，以大型破碎站为关键设备的半连续开采工艺得到了广泛的应用。而大型破碎站的主机设备一直依赖于欧、美发达国家的产品。因此，开发高效节能新型破碎设备、替代进口、满足国内大型矿山的需要势在必行。
我国大型露天煤矿可移式破碎站始于90年代。其破碎性能仅能满足煤及较软剥离物的破碎，使用受到了限制，不能满足矿山使用要求。而本论文研究的高效锤式破碎机由于其结构上独特的优点，使得生产能力大、破碎硬度高、破碎比大、排料粒度均匀、过粉碎小。因此，该破碎机是一种发展前途广阔的高效破碎设备。
本文完成了综采工作面锤式破碎机的整机外形的布局设计，介绍了各类型破碎机的应用和工作原理，以及目前国内破碎机的现状和发展趋势，结合破碎能力及要求采用一级锥齿减速；阐述了齿轮失效的条件；液力偶合器的工作原理；煤的水分对碎破过程中的影响；煤的粒度对破碎效果的影响；破碎机械的维修。
 

关键词： 破碎机 ；锥齿轮；液力偶合器 

ABSTRACT
With the development trend of Chinese coal and metal mine towards the upsizing, the half continuous mining technology featuring a large-scale crushing station as the key equipment has been used widely. Considering the main machine of the large-scale crushing station always depend on products from the developed countries such as European counties and USA, it is imperative to develop a new high-efficiency and energy saving crushing equipment to substitute imported equipment and meet the needs for the domestic large-scale mine.
 China's large-scale opencast mine may shift crusher station began in the 1990s. Broken only meet its performance than the soft coal and stripping of the broken, use was limited, can not meet the requirements of the use of mines. This thesis research and the efficient hammer crusher because of its unique structure on the merits, making production capacity, high hardness broken, broken than large, uniform size markers, too small to smash. Thus, the crusher is a broad future development of efficient broken equipment.
The layout having accomplished the complete machine external form putting the dyadic spirit face hammer crusher together designs the main body of a book, application and operating principle having introduced the type crusher of all kinds's, at present domestic crusher current situation and developing trend and, adopt the one-level cone tooth to reduce the speed combining with the broken ability and request; Condition having set forth a gear wheel becoming invalid; Hydraulic coincidence the implement operating principle; The coal moisture content breaks effect in process to being broken; Impact of the coal size over broken effect; Break the machinery be maintained to pieces. 
 
 Key words: crusher; bevel gear; hydraulic coupling

目    录
1、破碎机的发展概述 ...........................................................1
1.1煤用破碎机的国内外技术发展及现状 ...........................................1
1.2选题的目的和意义 ...........................................................7
2、破碎的定义和破碎机的类型................................................... 7
2.1 破碎的定义................................................................ 7
2.2 破碎的方法................................................................ 8
2.3 破碎机的选型.............................................................. 10
2.4 锤式破碎机的应用及发展.................................................... 14
2.4.1 锤式破碎机的原理和类型 ..................................................14
2.4.2 锤式破碎机的构造 ........................................................15
3、齿轮传动的设计与校核....................................................... 18
3.1 轮齿的失效形式 ............................................................19
3.1.1 轮齿折断................................................................ 19
3.1.2 齿面点蚀................................................................ 19
3.1.3 齿面胶合 ................................................................20
3.1.4 齿面磨损 ................................................................20
3.1.5 齿面塑性变形 ............................................................21
3.2变位齿轮简介 ...............................................................21
3.3 齿轮设计准则 ..............................................................22
3.4 高-切变位弧齿锥齿轮传动主要尺寸的确定 .....................................23
3.5锥齿轮传动的概述........................................................... 23
4、传动方案设计............................................................... 24
4.1总传动比的确定 .............................................................24
4.2传动比的分配 ...............................................................25
4.3各级传动转速、功率、转矩................................................... 25
4.4 齿轮的设计及校核.......................................................... 26
5、传动轴的结构设计与校核 .....................................................34
5.1 轴的介绍 ..................................................................34
5.2 输入轴的结构设计 ..........................................................37
5.2.1 确定轴的最小直径 ........................................................37
5.2.2 轴上零件的轴向定位及轴上圆角和倒角的尺寸................................ 42
5.2.3确定轴的最小直径......................................................... 42
5.2.4 轴上零件的轴向定位及轴上圆角和倒角的尺寸 ................................43
5.3轴的强度校核及受力分析图 ...................................................44
6、箱体及附件的设计........................................................... 47
7、液力偶合器的介绍及选型..................................................... 48
7.1液力偶合器的选型 ...........................................................48
7.2限矩型液力偶合器 ...........................................................49
7.3限矩型液力联轴器的选择 .....................................................49
7.4液力联轴器概述............................................................. 51
7.5液力联轴器的工作原理........................................................52
7.6液力联轴器的工作液体....................................................... 54
7.6.1基本要求 .................................................................54
7.6.2常用油的种类............................................................. 54
7.7液力联轴器的工作特性 .......................................................55
7.7.1动量矩方程式 .............................................................55
7.7.2效率特性................................................................. 58
7.7.3外特性 ...................................................................59
7.7.4无因次特性............................................................... 61
7.8液力联轴器的分类 ...........................................................62
7.8.1普通型液力联轴器 .........................................................63
7.8.2限矩型液力联轴器......................................................... 64
7.8.3调速型液力联轴器 .........................................................64
8、破碎物料对筛分、破碎过程的影响 .............................................66
8.1影响筛分过程的因素......................................................... 66
8.1.1煤的水分对筛分过程的影响................................................. 66
8.1.2煤的粒度对筛分的影响..................................................... 67
8.1.3筛孔尺寸和形状的影响 .....................................................67
8.1.4筛面长度和宽度 ...........................................................68
8.2入料粒度组成对破碎效果的影响............................................... 68
8.3 入料水分对破碎效果的影响.................................................. 68
9、破碎机械的操作和维修 .......................................................70
9.1破碎机械的操作 .............................................................70
9.2破碎机械的维修............................................................. 70
9.3减速器的润滑与密封......................................................... 70
9.4破碎机的润滑与密封 .........................................................70
9.4.1滚动轴承的润滑和密封 .....................................................70
9.4.2破碎机所选用的轴承....................................................... 72
附  录 ........................................................................73
参考文献 ......................................................................77
翻译 ..........................................................................78
英文原文...................................................................... 78
中文译文 ......................................................................88
致  谢 ........................................................................96