本文選題：大采高 + 液壓支架　； 參考：《山東科技大學》2017年碩士論文

【摘要】：大采高液壓支架可靠性是決定厚煤層大采高工作面高產(chǎn)高效的關鍵因素,由于其支護高度大、受力復雜,對結構件強度、液壓控制系統(tǒng)和加工精度提出更高要求。論文從大采高支架的結構設計、液壓控制系統(tǒng)特性、加工工藝等方面對厚煤層工作面大采高液壓支架可靠性能進行研究,解決大采高液壓支架設計與制造中的技術問題,以提高大采高液壓支架的工作性能。論文首先根據(jù)厚煤層賦存條件,計算大采高液壓支架關鍵技術參數(shù),并基于虛擬樣機技術對液壓支架主要部件設計,提出適用于工作面條件的大采高液壓支架設計方案;其次分析大采高支架與圍巖相互作用關系,對液壓支架整架力學計算,應用ANSYS Workbench建立液壓支架整架及關鍵部件有限元模型,并分析其應力應變,找出薄弱環(huán)節(jié),確保液壓支架強度可靠性;同時基于AMESim仿真平臺對大采高支架液控系統(tǒng)中安全閥、電液換向閥等關鍵閥類元件建模仿真,分析其工作性能;并對立柱回路、推移回路及平衡回路進行仿真分析,得出回路的壓力、流量及位移等特性曲線,為改善液控回路的工作可靠性奠定基礎;最后,從選材、下料、焊接、裝配等方面對大采高液壓支架加工工藝進行研究,通過制定合理的支架結構件工藝流程、液壓缸加工工藝以及立柱立式裝配工藝,來保證液壓支架整體加工工藝可靠性。論文采用計算機輔助設計等現(xiàn)代設計方法對大采高液壓支架方案設計、空間力學分析及結構有限元分析,提高大采高液壓支架設計可靠性。應用虛擬仿真對大采高液壓支架液壓控制回路進行建模分析,提高支架液壓系統(tǒng)可靠性,為液壓系統(tǒng)參數(shù)優(yōu)化提供參考依據(jù)。同時通過制定合理的加工、焊接與裝配工藝,保證大采高液壓支架加工質量。論文研究對解決厚煤層大采高液壓支架結構件強度低和液壓控制系統(tǒng)不穩(wěn)定等技術難題具有一定的借鑒意義。
[Abstract]:The reliability of large mining height hydraulic support is the key factor to determine the high yield and high efficiency of thick coal seam large mining face. Because of its large supporting height and complicated force, higher requirements are put forward for structural strength, hydraulic control system and machining precision. In this paper, the reliable performance of large height hydraulic support in thick coal face is studied from the aspects of structure design, hydraulic control system characteristics, processing technology and so on, and the technical problems in the design and manufacture of large mining height hydraulic support are solved. In order to improve the working performance of large mining high hydraulic support. Firstly, according to the occurrence condition of thick coal seam, the key technical parameters of large mining height hydraulic support are calculated, and the main components of hydraulic support are designed based on virtual prototyping technology, and the design scheme of large mining height hydraulic support suitable for working face condition is put forward. Secondly, the interaction relationship between large mining height support and surrounding rock is analyzed. The finite element model of the whole frame and key components of hydraulic support is established by ANSYS Workbench, and its stress and strain are analyzed to find out the weak link. At the same time, based on AMESim simulation platform, modeling and simulation of safety valve, electro-hydraulic directional valve and other key valve components in hydraulic control system of large mining height support, the working performance of hydraulic support is analyzed. The characteristic curves of pressure, flow and displacement of the circuit are obtained by simulation and analysis of the load loop and the balance circuit, which lays a foundation for improving the working reliability of the hydraulic control loop. Finally, from the material selection, material cutting, welding, In order to ensure the reliability of the whole processing technology of the hydraulic support, the machining technology of the hydraulic support with large mining height is studied in the aspects of assembly, and the reasonable technological process of the support structure, the processing technology of the hydraulic cylinder and the vertical assembly of the column are worked out in order to ensure the reliability of the whole processing technology. In this paper, modern design methods such as computer aided design (CAD) are used to design hydraulic support for large mining height, spatial mechanics analysis and structural finite element analysis are used to improve the reliability of hydraulic support design for large mining height. Virtual simulation is used to model and analyze the hydraulic control circuit of large mining height hydraulic support to improve the reliability of the hydraulic system of the support and to provide a reference for the parameter optimization of the hydraulic system. At the same time, the machining quality of hydraulic support with large mining height is ensured by making reasonable processing, welding and assembling technology. The research in this paper is helpful to solve the technical problems such as low strength of hydraulic support and instability of hydraulic control system in thick coal seam.
【學位授予單位】：山東科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD355.4

【參考文獻】

相關期刊論文 前10條

1 賴周藝;吳培棟;;ZY18000/32/70D型液壓支架主體結構件有限元分析及試驗研究[J];煤礦機械;2016年05期

2 曹連民;孫云魯;龐斌;韓松松;劉冰;;液壓支架制造工藝技術研究[J];煤炭科學技術;2016年04期

3 梁利闖;田嘉勁;鄭輝;焦素娟;;沖擊載荷作用下液壓支架的力傳遞分析[J];煤炭學報;2015年11期

4 郝亞妮;呂俊峰;;液壓缸活塞密封件裝配裝置[J];煤礦機械;2015年10期

5 任懷偉;;液壓支架關鍵零部件材料性能分析及工藝研究[J];煤礦開采;2015年04期

6 王陽陽;沈宏明;孫紅波;;基于AMESim的大流量安全閥仿真試驗系統(tǒng)研究[J];煤炭工程;2015年02期

7 王國法;龐義輝;;液壓支架與圍巖耦合關系及應用[J];煤炭學報;2015年01期

8 王國法;;工作面支護與液壓支架技術理論體系[J];煤炭學報;2014年08期

9 李燦;茍曉明;雷剛;鄧虹輝;;礦用液壓支架強度分析[J];重慶理工大學學報(自然科學);2014年05期

10 李文國;;基于AMESim的FDD125/40型液控單向閥仿真分析[J];煤礦機械;2014年05期

相關博士學位論文 前2條

1 舒鳳翔;高端液壓支架液壓系統(tǒng)及關鍵元件研究[D];中國礦業(yè)大學;2009年

2 高有進;6.2米液壓支架關鍵技術研究與優(yōu)化設計[D];華中科技大學;2008年

相關碩士學位論文 前6條

1 曹亞楠;基于AMESim的大流量安全閥動態(tài)特性分析與仿真[D];西安科技大學;2014年

2 周謙;ZY10000/22/45D礦用液壓支架液壓系統(tǒng)的設計與仿真[D];西安科技大學;2014年

3 朱俊;液壓支架立柱液壓系統(tǒng)的仿真研究[D];鄭州大學;2013年

4 陳蘭;液壓支架液壓系統(tǒng)的建模與仿真[D];西安科技大學;2011年

5 朱世陽;厚煤層6.0m采高液壓支架穩(wěn)定性研究[D];西安科技大學;2011年

6 劉新華;大采高強力液壓支架結構分析[D];煤炭科學研究總院;2008年

，

本文編號：2101362