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1、河北工程大学毕业设计- I -摘摘要要本次设计的内容是分体顶梁柔性液压支架，我在本次设计中主要负责该支架的液压系统部分。此次任务包括立柱、伸缩油缸、销轴的的设计与计算，立柱由液压油缸组成；伸缩油缸在顶梁部分，销轴主要用于油缸与耳板之间的连接。这种支架最大的特点是采用垂直柔性导杆结构来代替传统的四连杆结构；采用分体式顶梁代替整体顶梁。这种支架因结构简单、重量轻、造价低、节省空间，大大减轻了支架的整体重量，梁采用伸缩式的，支撑过程中能与地板接触，不仅起到一定的掩护作用，而且还能起到一定的支撑作用，使支架更稳定。关键词：液压支架；分体顶梁；柔性；液压油缸；河北工程大学毕业设计- II -Abstra
2、ct The design is flexible beam at the top of the hydraulic support, I am in this design is mainly responsible for the part of the hydraulic system of the stent. The taskincluding the column, telescopic cylinders, the pin design and calculation, to play a supportive role column, composed by the hydra
3、ulic cylinder; telescopic part of the fuel tank in the roof beams, pin mainly used in the fuel tank and the connection between the ear plate. Column composed of the hydraulic cylinder; telescopic part of the fuel tank in the roof beams, pin mainly used in the fuel tank and the connection between the
4、 ear plate.The greatest feature of this stent is flexible vertical guide structure to replace the traditional four-bar linkage structure; the use of split-type roof top beam instead of the whole beam. Stent because of this simple structure, light weight, low cost and save space, reduce the overall w
5、eight of the stent, the use of telescopic beam, and support the process of contact with the floor, cover not only play a role, but also play a supporting role, so that a more stable support.Key words: hydraulic support; points of the top beam；flexible； hydraulic cylinder;河北工程大学毕业设计- III -目录摘要.IAbstr
6、act.II第 1 章 绪论.11.1 液压支架的发展现状.11.1.1 国外液压支架的发展现状.11.1.2 国内液压支架研究情况.21.2 我国液压支架研究与应用中存在的问题.21.3 本课题研究的意义.3第 2 章 架型的选择.52.1 支架机构形式的比较分析.52.1.1 垛式液压支架的特点.52.1.2 四连杆机构液压支架.52.1.3 单摆杆机构液压支架.6第 3 章 总体结构设计.73.1 支架基本参数的确定.73.1.1 支架高度.73.1.2 支架伸缩比.73.1.3 支架间距.73.1.4 支架宽度.73.1.5 底座长度.83.1.6 顶梁长度.83.1.7 支架工作阻力.93.2 顶梁结构设计.93.2.1 顶梁形式的选择.93.2.2 伸缩梁结构设计.103.3 底座结构设计.103.3.1 底座的选型.113.3.2 确定底座结构尺寸.113.4 柔性导杆稳定机构的设计.12河北工程大学毕业设计- IV -3.4.1 弹簧钢板长度的确定.123.4.2 弹簧钢板截面尺寸及板片数量的确定.133.5 立柱的确定.153.5.1 工作阻力的确定.
