综采液压支架回撤平台的设计分析与试验

发布时间：2019-07-03 13:55

【摘要】：随着煤矿开采技术的不断进步,综采工作面的更换日益加快,其相应配套设备的回撤也越来越频繁。由于综采工作面液压支架数目多,体积大,所以其回撤工作变得更加困难。传统的回撤方式主要由人力配合回柱绞车共同完成,回撤效率低、安全性差且劳动强度大。为了安全高效地完成液压支架的回撤工作,减轻工作人员的劳动强度,提高矿井的生产效率,急需研发一种液压支架回撤的专用设备。论文研究的重点是：以安全高效完成液压支架回撤为目的,比较现有液压支架回撤的工艺,对液压支架回撤平台的结构进行设计,并对其主要部件进行强度分析与优化设计,验证其结构的可靠性,最后对设备的液压传动系统进行分析与设计。具体内容如下：首先,论文分析液压支架回撤设备的研究现状及回撤工艺,对综采液压支架回撤平台进行了总体结构设计,建立了整机模型,并针对回撤平台的上行平台、转向平台、连接过渡平台、牵引平台、推移装置等部件进行详细的结构介绍。其次,对转向平台、弧形平台及连接过渡平台进行有限元分析,在此基础上,为了提高设备强度,利用ANSYS-Workbench中的实验设计法对转向平台和弧形平台进行优化设计。再次,对设备的液压系统进行设计,主要包括以下三个方面：1)对各执行油缸的工况进行分析；2)液压系统原理图的设计；3)液压系统配套设备的选型与设计。最后,对回撤平台样机进行功能试验,并针对试验中存在的问题,提出解决方案。
[Abstract]:With the continuous development of the mining technology of the coal mine, the replacement of the fully-mechanized mining face is becoming more and more rapid, and the corresponding supporting equipment has become more and more frequent. As the number of hydraulic supports in the fully-mechanized mining face is large and the volume is large, the retraction operation of the fully-mechanized mining face becomes more difficult. The traditional withdrawal method is mainly carried out by the manpower-matched back-column winch, the pullback efficiency is low, the safety is poor, and the labor intensity is high. In order to safely and effectively complete the pullback of the hydraulic support, the labor intensity of the staff is reduced, the production efficiency of the mine is improved, and a special device for developing a hydraulic support to be retracted is in urgent need. The focus of this paper is to design the structure of the pullback platform of the hydraulic support with the aim of safely and efficiently complete the pullback of the hydraulic support, and to design the structure of the pullback platform of the hydraulic support, and the strength analysis and optimization design of the main components to verify the reliability of the structure. The analysis and design of the hydraulic transmission system of the equipment The specific content is as follows: In this paper, the present situation and the pullback process of the pullback device of the hydraulic support are analyzed firstly, the overall structure design of the fully-mechanized hydraulic support pullback platform is carried out, the whole machine model is established, and the ascending platform, the steering platform and the connection of the pullback platform are connected. Detailed junction of components such as a ferry platform, a traction platform, a push-over device, etc. Secondly, the finite element analysis is carried out on the steering platform, the arc-shaped platform and the connection transition platform. On this basis, the steering platform and the arc-shaped platform are optimized by the experimental design method in the ANSYS-Workbench, in order to improve the strength of the equipment. the design of the hydraulic system of the equipment is carried out again, and the design of the hydraulic system of the equipment mainly comprises the following three aspects:1) the working condition of each execution cylinder is analyzed;2) the design of the schematic diagram of the hydraulic system; and 3) the selection of the supporting equipment of the hydraulic system Finally, the function test of the pullback platform prototype is carried out, and the problems existing in the test are put forward.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD355.4

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