【正文】
放頂煤液壓支架 ZFS400014/28 整體設(shè)計摘要 采煤綜合機械化,是加速我國煤炭工業(yè)發(fā)展,大幅度提高勞動生產(chǎn)率,實現(xiàn)煤炭工業(yè)現(xiàn)代化的一項戰(zhàn)略措施。綜合機械化不僅產(chǎn)量大,效率高,成本低,而且能減輕笨重的體力勞動,改善作業(yè)環(huán)境,是煤炭工業(yè)技術(shù)的發(fā)展方向。而液壓支架是綜合機械化采煤方法中最重要的設(shè)備之一。液壓支架主要有以下幾個基本部分組成:頂梁,底座,液壓支柱,千斤頂,掩護梁,四連桿機構(gòu)。設(shè)計要遵從支護性能好、強度高、移架速度快、安全可靠等原則。在支撐掩護式的設(shè)計中,前梁、主頂梁、掩護梁和立柱等結(jié)構(gòu)件的設(shè)計是重點。本論文介紹了液壓支架的結(jié)構(gòu)、類型、工作原理、目的及要求,對掩護式液壓支架作了詳盡的分析和介紹,講述了這種支架的設(shè)計方案和用途。關(guān)鍵詞:液壓支架。 支護。 四連桿機構(gòu)。 頂梁。 掩護梁。 液壓支柱或者支柱。 結(jié)構(gòu)設(shè)計.ON THE OVERRALL DESIGN OF ZFS4000/14/28 HYDRAULIC CAVING SUPPORTABSTRACTThe prehensive mechanization of coal mining is the acceleration coal industrial development of our country, raises labor productivity substantially and realizes the modern a strategic measure of coal industry. Synthesize mechanization not only output big, efficiency has low cost high and can alleviate heavy physical labor and improvement working environment, is the technology of coal industry develop direction. Hydraulic support is one of the prehensive most important equipment in the mechanization method of coal mining. Hydraulic support major from some following basically partial positions: Top beam, screens beam and 4 linkage mechanisms, side fender, base, prop. Design to follow protect performance good, strength is speed high, move rapid, safely reliable etc. principle. In the design course that the type of supports cover type, the design of canopy and caving shield and props is key. This paper has introduced requirement, type, working principle, characteristic, purpose and the structure of hydraulic support, for screening type hydraulic pressure support have made detailed analysis and introduction, have narrated use and the scheme of this kind of support. KEYWORDS: hydraulic support。 shoring。 4 linkage mechanisms。 canopy。 caving shield。 hydraulic legs or props。 structure design.目錄摘要 ................................................................IABSTRACT...........................................................II緒論 ................................................................11 液壓支架的概述 ....................................................3 放頂煤采煤法 ..................................................3 放頂煤工藝 ....................................................3 液壓支架的操作 ................................................4 支護方式 ....................................................4 操作方式 ....................................................4 液壓支架的工作原理及分類 ......................................4 液壓支架的工作原理 ........................................4 液壓支架分類 ..............................................4 主要用途,適用范圍和性能特點 ..................................5 主要用途 ..................................................5 適用范圍 ..................................................5 性能特點 ..................................................5 低位放頂煤液壓支架組成 .......