刨煤机传动系统与急停缓冲装置设计

论文编号:JX1462  论文字数:15739.页数:39  附开题报告，实习报告，外文翻译，CAD图，CAXA图

摘要
 
 目前，我国开采薄煤层的机械设备较少，而刨煤机是一种价格低、结构简单、维修方便、操作简便的采煤设备。因此有必要对刨煤机进行研究设计。
 本文对刨煤机目前国内、外的发展情况进行了阐述，主要对刨煤机刨头的传动系统和急停缓冲装置进行了设计研究。本文选用由电动机、耦合器、减速器组成的机械驱动装置，由该装置向刨头提供动力；通过对刨头的受力分析，结合刨头实际采煤过程，利用气压传动原理，设计急停缓冲装置。
 刨头传动系统驱动刨头完成切削煤壁的运动。急停缓冲装置保证刨头运行到工作端面时能够紧急、可靠、安全地停车。
 关键词：刨煤机；传动系统；急停缓冲装置

Abstract

 At present, in our country mines,the mechanical device machine to the thin coal bed is few, but the coal plow is one kind of low price, simple structure, easy operation mining coal equipment. Therefore it is necessary to carry on the research to design the coal plow.
 This article to the coal plow the home, the overseas development situation has carried on the elaboration at present, mainly and stopped the buffer mechanism to the coal plow discount transmission system to conduct the design research anxiously. This article selects by the machinery drive which by the electric motor, the coupler, the reduction gear is composed, provides the power by this equipment to the discount; Through to the discount stress analysis, the union discount actual mining coal process, the use pneumatic actuator principle, designs one to the existing air cylinder slightly transformation to stop the buffer mechanism anxiously.
 The discount transmission system impetus discount completes the movement of cutting coal wall, stops the buffer mechanism anxiously, guaranteed the discount moves to work end surface time urgent, reliable, stops safely.
Key word: Coal plow; Transmission system; Stops the buffer mechanism anxiously

目录

前言 1
1 绪论 2
1.1 题目背景 2
1.2 设计目的及意义 2
1.3 刨煤机国内外发展情况 2
1.4 制约我国刨煤机发展主要因素 3
1.5 刨煤机行业在国内发展需要解决的问题 4
2 刨煤机传动系统设计 6
2.1 机头机尾传动系统布置 6
2.2 链轮选择设计 7
2.3 传动链保护装置设计 9
2.4 电动机选型 10
2.5 联轴器的选型计算 11
2.6 减速器选型 11
3 刨头缓冲装置设计 14
3.1 缓冲装置方案 14
3.2 刨头刨削阻力计算 15
3.3 刨头长度的确定 15
3.4 刨头宽度的确定 16
3.5 刨头高度的确定 16
3.6 刨刀间距t的确定 16
3.7 平均刨削阻力 18
3.8 单个锐利刨刀所受的煤壁平均挤压力 19
3.9刨头所受煤壁刨削阻力 19
4.计算过程及结果 21
4.1 装煤阻力的计算 22
4.2 刨头摩擦力的计算 27
4.3 缓冲装置的设计 30
5 经济性分析 35
6 结论 36
致谢 37
参考文献 38