本文關(guān)鍵詞： 單軌吊 結(jié)構(gòu)改進 強度分析 輕型化　出處：《安徽理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著采煤工作面生產(chǎn)能力的提高,工作面作業(yè)準備量日益增加,采掘巷道的機械化快速掘進與支護成為提高礦井工作效率和安全生產(chǎn)的關(guān)鍵技術(shù)之一。目前國內(nèi)煤礦主要臨時支護形式存在施工工藝復雜、環(huán)節(jié)多、效率低、支護速度慢等問題,導致空頂時間長,頂板易發(fā)生沉降和變形,而且工人勞動強度大,容易發(fā)生冒頂傷人事故,產(chǎn)生采掘失調(diào)、接續(xù)緊張的被動局面。于是研究一種快速而安全的機械化臨時支護裝置成為必然需求。設(shè)備研發(fā)雖然已初步完成,但為了適應某些小斷面礦井的使用要求,必須對原設(shè)備進行結(jié)構(gòu)輕型化設(shè)計。 首先,本文根據(jù)某礦井實際巷道斷面大小提出的要求及相關(guān)數(shù)據(jù),完成對整個裝備高度影響最大的主梁部件的結(jié)構(gòu)改進設(shè)計與強度分析,改變懸掛點與支撐臂支點的相對位置,以降低整機高度,使用高強度材料,以減小尺寸,減輕重量；其次,本文根據(jù)主梁結(jié)構(gòu)的改變和懸掛點位置的改變,對裝備的懸掛系統(tǒng)進行重新設(shè)計和計算,提出兩種設(shè)計方案；然后,本文對主梁和懸掛系統(tǒng)中涉及到需要進行重新選型計算的液壓缸進行重新選型,使改進后的設(shè)備運行起來更加流暢；最后,本文詳細介紹了防護盾的輕量化設(shè)計與強度分析對比,使整個設(shè)備改進的工作更加完整。 此研究使綜掘快速支護裝備產(chǎn)品更好地滿足國內(nèi)小斷面礦井安全生產(chǎn)需要,并且有利于綜采工作面高產(chǎn)高效高安開采。可以解決綜掘支護難、操作工人易受傷等難題,對相似礦井支護設(shè)備具有重要的指導意義、參考價值,對于推動全國綜掘快速支護裝備改革的進程有著重要理論與實踐意義。
[Abstract]:With the increase of the production capacity of coal mining face, the amount of working preparation is increasing day by day. The mechanized quick excavation and support of mining roadway has become one of the key technologies to improve the working efficiency and safety in production. At present, the main temporary supporting forms of coal mine in China have complex construction technology, many links and low efficiency. Such problems as slow supporting speed lead to the long time of the roof, the settlement and deformation of the roof, and the heavy labor intensity of the workers. It is necessary to study a kind of quick and safe mechanized temporary support device. Although the research and development of the equipment has been preliminarily completed, in order to meet the requirements of the use of some small cross-section mines, It is necessary to carry out structural lightweight design for the original equipment. Firstly, according to the requirements and relevant data of the actual roadway section size in a mine, the structural improvement design and strength analysis of the main beam components which have the greatest influence on the whole equipment height are completed. Change the relative position of the suspension point and the supporting arm fulcrum to reduce the height of the whole machine and use the high strength material to reduce the size and the weight. Secondly, according to the change of the structure of the main beam and the change of the position of the suspension point, The suspension system of equipment is redesigned and calculated, and two design schemes are put forward. Then, the main beam and the hydraulic cylinder which need to be re-selected and calculated are reselected in this paper. Finally, this paper introduces the lightweight design of shield and the comparison of strength analysis in order to make the improvement of the whole equipment more complete. This research makes the equipment products of rapid support for fully mechanized excavation better meet the needs of safety production in domestic small cross-section mines, and is beneficial to the high yield, high efficiency and high safety mining of fully mechanized coal face, which can solve the difficulties of fully mechanized excavation and support and the easy injury of operation workers, etc. It has important guiding significance and reference value for similar mine support equipment, and has important theoretical and practical significance for promoting the reform process of the rapid support equipment for fully mechanized excavation in the whole country.
【學位授予單位】：安徽理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD355

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本文編號：1510840