【摘要】：可移動式救生艙是通過吊裝、牽引等方式實現(xiàn)移動,以滿足井下采掘作業(yè)要求的一種能提供密閉空間的避險設(shè)施�？梢苿邮骄壬摴灿腥琅撻T：第一道門采用向外開啟的防護(hù)密閉門,第二道門是密閉門,第三道是應(yīng)急逃生用的逃生門。這三道艙門是可移動式救生艙的關(guān)鍵部件,因此保證艙門的密封性和抗沖擊能力以及隔熱性便成為救生艙設(shè)計研究的重中之重。 本文首先以KJYF-96型號的礦用可移動式救生艙為研究基礎(chǔ),對此型號的救生艙艙門進(jìn)行了結(jié)構(gòu)改進(jìn)設(shè)計。根據(jù)應(yīng)用環(huán)境和救生艙要求,參照已經(jīng)生產(chǎn)出來的救生艙艙門結(jié)構(gòu),初步設(shè)計了新型救生艙艙門的結(jié)構(gòu)及各組成部分,確定三種艙門結(jié)構(gòu)的形狀、尺寸及傳動機(jī)構(gòu)與鎖緊機(jī)構(gòu)的方式類型,并對傳動力和鎖緊力進(jìn)行理論求解；對比分析新型艙門與現(xiàn)有艙門的結(jié)構(gòu)特點(diǎn),突出本設(shè)計的創(chuàng)新之處。 其次,對新型艙門進(jìn)行抗沖擊分析。分析礦井巷道瓦斯爆炸沖擊波的傳播規(guī)律,利用AUTODYN模擬瓦斯爆炸對艙門結(jié)構(gòu)的爆炸沖擊并對沖擊力進(jìn)行分析；結(jié)合ANSYS Workbench模擬救生艙艙門抗沖擊過程,對艙門進(jìn)行應(yīng)力分析和氣密性分析,根據(jù)分析結(jié)果對初步結(jié)構(gòu)進(jìn)行優(yōu)化設(shè)計,為今后新型救生艙的設(shè)計研究奠定了基礎(chǔ)。 最后,進(jìn)行艙門的熱力學(xué)分析。利用ANSYS Workbench的瞬態(tài)熱力學(xué)方法對艙門的關(guān)鍵傳熱部件操作手柄部件進(jìn)行熱傳導(dǎo)分析,獲得該部件的溫度變化曲線和溫度云圖；總結(jié)分析操作手柄部件隔熱性能不佳的原因,并對操作手柄部件進(jìn)行結(jié)構(gòu)改進(jìn),該項目為救生艙熱防護(hù)性能的研究提供了理論基礎(chǔ)。 本文通過對救生艙艙門結(jié)構(gòu)的改進(jìn)設(shè)計和有限元分析,驗證了新型艙門結(jié)構(gòu)設(shè)計的合理性。該研究成果已成功應(yīng)用于KJYF-96型可移動式救生艙,不僅為救生艙防護(hù)結(jié)構(gòu)的設(shè)計及發(fā)展提供了依據(jù),也對完善我國煤礦井下安全避險“六大系統(tǒng)”具有積極的意義。
[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.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TD774

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