本文選題：輔助運輸 + 氣動技術(shù)　； 參考：《安徽理工大學》2017年碩士論文

【摘要】：氣壓傳動技術(shù)已成為機械產(chǎn)業(yè)各領域重要組成部分,隨著氣動技術(shù)的迅速發(fā)展和廣泛的實際應用,新型高性能氣動元件及氣動控制系統(tǒng)不斷出現(xiàn)。本文通過對國內(nèi)外發(fā)展動態(tài)的分析和實際調(diào)研,發(fā)現(xiàn)國內(nèi)中小型礦井,在井下不能鋪設軌道的特殊地段,大型設備或其零部件的運輸存在較大的困難,極大地影響了煤礦的生產(chǎn)效率和安全生產(chǎn)。針對以上情況,課題提出了一種礦用全氣動邁步式運輸機構(gòu)。全文首先提出了機構(gòu)安全、高效的設計要求;利用推拉行走的設計原理提出通過兩組三足機構(gòu)交替邁步實現(xiàn)邁步行走的最優(yōu)方案;完成了邁步式運輸機構(gòu)的結(jié)構(gòu)設計,闡述了具體邁步行走及機構(gòu)轉(zhuǎn)向的動作原理和控制流程。然后采用線性瞬態(tài)動力學對邁步式運輸機構(gòu)模型進行了瞬態(tài)動力學分析,分別通過三點固定約束和六點固定約束這兩種約束對機構(gòu)進行了加速度沖擊分析,根據(jù)仿真結(jié)果提出改進方案,通過對改進后結(jié)構(gòu)再次進行了分析驗證,根據(jù)本課題設計后期的結(jié)構(gòu)改進方案基本完成了樣機制作。最后利用PLC控制氣動系統(tǒng)實現(xiàn)邁步式運輸機構(gòu)的自動化控制,給出了機構(gòu)氣動系統(tǒng)原理并對執(zhí)行元件結(jié)構(gòu)參數(shù)進行了分析,利用相關(guān)氣動試驗和PLC控制實驗對邁步式運輸機構(gòu)的運行進行了驗證。邁步式輔助運輸機構(gòu)利用邁步行走原理,采用氣動方式實現(xiàn)邁步,并且能實現(xiàn)所需要的轉(zhuǎn)向角度。本機構(gòu)的實現(xiàn)和應用可大大減輕礦井下特殊地段短距離輔助運輸?shù)碾y度,對提高煤礦生產(chǎn)效率和安全生產(chǎn)起到一定的積極作用。
[Abstract]:Pneumatic transmission technology has become an important part of mechanical industry. With the rapid development of pneumatic technology and extensive practical application, new high-performance pneumatic components and pneumatic control systems are emerging. Based on the analysis of the development trends at home and abroad and the actual investigation, it is found that there are great difficulties in the transportation of large equipment or its parts and components in small and medium-sized mines in China, in special areas where no track can be laid in the underground. Greatly affected the coal mine production efficiency and safety production. In view of the above situation, this paper puts forward a kind of all-pneumatic stepped-type transport mechanism for mining. First of all, the design requirements of mechanism safety and efficiency are put forward, and the optimal scheme is put forward by using the design principle of push-pull walking, and the structure design of the stepping transport mechanism is completed, which is realized by alternating steps of two groups of three-legged mechanisms. The movement principle and control flow of specific walking and mechanism steering are expounded. Then the linear transient dynamics is used to analyze the transient dynamics of the stepping transport mechanism model. The acceleration shock analysis of the mechanism is carried out by the three point fixed constraint and the six point fixed constraint respectively. According to the simulation results, the improved scheme is put forward, and the improved structure is analyzed and verified again, and the prototype is basically completed according to the structural improvement scheme of the later stage of the design of this subject. Finally, the PLC pneumatic control system is used to realize the automatic control of the stepping transport mechanism. The principle of the pneumatic system of the mechanism is given and the structural parameters of the actuator are analyzed. The operation of the stepped-type transportation mechanism is verified by the related aerodynamic test and PLC control experiment. With the help of the principle of walking, the auxiliary transport mechanism can realize the steeplechase by pneumatic method, and can realize the required steering angle. The realization and application of this organization can greatly reduce the difficulty of the short distance auxiliary transportation in the special area under the mine, and play a positive role in improving the production efficiency and safety in the coal mine.
【學位授予單位】：安徽理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD634

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