可移动式救生舱门的结构设计及研究

发布时间：2019-03-10 18:52

【摘要】：可移动式救生舱是通过吊装、牵引等方式实现移动,以满足井下采掘作业要求的一种能提供密闭空间的避险设施。可移动式救生舱共有三道舱门：第一道门采用向外开启的防护密闭门,第二道门是密闭门,第三道是应急逃生用的逃生门。这三道舱门是可移动式救生舱的关键部件,因此保证舱门的密封性和抗冲击能力以及隔热性便成为救生舱设计研究的重中之重。本文首先以KJYF-96型号的矿用可移动式救生舱为研究基础,对此型号的救生舱舱门进行了结构改进设计。根据应用环境和救生舱要求,参照已经生产出来的救生舱舱门结构,初步设计了新型救生舱舱门的结构及各组成部分,确定三种舱门结构的形状、尺寸及传动机构与锁紧机构的方式类型,并对传动力和锁紧力进行理论求解；对比分析新型舱门与现有舱门的结构特点,突出本设计的创新之处。其次,对新型舱门进行抗冲击分析。分析矿井巷道瓦斯爆炸冲击波的传播规律,利用AUTODYN模拟瓦斯爆炸对舱门结构的爆炸冲击并对冲击力进行分析；结合ANSYS Workbench模拟救生舱舱门抗冲击过程,对舱门进行应力分析和气密性分析,根据分析结果对初步结构进行优化设计,为今后新型救生舱的设计研究奠定了基础。最后,进行舱门的热力学分析。利用ANSYS Workbench的瞬态热力学方法对舱门的关键传热部件操作手柄部件进行热传导分析,获得该部件的温度变化曲线和温度云图；总结分析操作手柄部件隔热性能不佳的原因,并对操作手柄部件进行结构改进,该项目为救生舱热防护性能的研究提供了理论基础。本文通过对救生舱舱门结构的改进设计和有限元分析,验证了新型舱门结构设计的合理性。该研究成果已成功应用于KJYF-96型可移动式救生舱,不仅为救生舱防护结构的设计及发展提供了依据,也对完善我国煤矿井下安全避险“六大系统”具有积极的意义。
[Abstract]:Movable lifehold is a kind of safety shelter which can provide sealed space by means of lifting, traction and so on to meet the requirements of underground mining operation. There are three doors to the portable lifehold: the first door is an outward closed door, the second door is a closed door, and the third door is an escape door for emergency escape. These three-way doors are the key parts of the movable lifehold, so it is the most important to ensure the sealing and impact resistance of the doors and the heat insulation of the cabin design. In this paper, based on the research foundation of KJYF-96 type mine movable lifehold, the structure improvement design of the door of this kind of rescue cabin is carried out. According to the requirements of application environment and lifehold, and referring to the structure of lifehold door which has already been produced, the structure and components of the new type of lifehold door are preliminarily designed, and the shapes of three kinds of cabin door structure are determined. Dimensions and types of transmission mechanism and locking mechanism, and theoretical solution to transmission force and locking force; By comparing and analyzing the structural characteristics of the new hatch door and the existing hatch door, the innovation of this design is highlighted. Secondly, the impact resistance analysis of the new hatch door is carried out. The propagation law of gas explosion shock wave in mine roadway is analyzed. The explosion impact of gas explosion on hatch structure is simulated by AUTODYN and the impact force is analyzed. Combined with ANSYS Workbench to simulate the anti-impact process of lifehold doors, the stress analysis and air tightness analysis of the doors were carried out. According to the analysis results, the preliminary structure was optimized, which laid the foundation for the design and research of the new type of rescue cabin in the future. Finally, the thermodynamic analysis of the hatch is carried out. The transient thermodynamic method of ANSYS Workbench is used to analyze the heat conduction of the operating handle of the key heat transfer part of the hatch, and the temperature variation curve and temperature cloud of the module are obtained. The reasons for the poor thermal insulation performance of the operating handle parts are summarized and analyzed, and the structure of the operating handle parts is improved. This project provides a theoretical basis for the study of the thermal protection performance of the lifehold. In this paper, the rationality of the design of the new hatch structure is verified by the improved design and finite element analysis of the door structure of the life-saving cabin. The research results have been successfully applied to the KJYF- 96 portable lifehold, which not only provides the basis for the design and development of the protective structure of the rescue cabin, but also has a positive significance for perfecting the "six major systems" of safety and safety avoidance in coal mines in China.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD774

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