薄煤层液压支架设计大学论文.doc

薄煤层液压支架设计辽宁工程技术大学毕业设计（论文）目录1绪论1.1国内外液压支架的发展及现状...................................11.2液压支架的工作原理...........................................21.3液压支架的组成...............................................41.4本课题的研究目的和意义.......................................52液压支架的总体设计方案2.1支架的选型设计...............................................62.1.1设计目的.................................................62.1.2影响架型选择的因素.........................................62.1.3支架架型的确定.............................................72.2支架参数的确定...............................................92.2.1支架的高度和支架的伸缩比...................................92.2.2支架间距和宽度的确定......................................102.2.3初撑力....................................................102.2.4移架力与推溜力............................................112.3底座长度的确定..............................................112.4顶梁长度的确定..............................................112.4.1支架工作方式对支架顶梁长度的影响..........................112.4.2顶梁长度的计算............................................112.5四连杆机构的确定............................................122.5.1四连杆机构的作用..........................................122.5.2四连杆机构设计的要求......................................122.5.3四连杆机构的设计..........................................132.6液压支架支护技术参数的确定..................................172.6.1支护面积的确定............................................172.6.2液压支架的支护强度........................................172.6.3立柱的技术参数确定........................................182.6.4推移千斤顶参数的确定......................................202.6.5液压支架的主要技术参数表..................................223液压支架部件设计3.1支架主要部件的设计要求......................................233.2顶梁........................................................233.3顶梁侧护板..................................................243.4底座........................................................253.5推移装置....................................................253.6连杆........................................................273.7立柱千斤顶...........................................