Abstract : the join way of scraper coveyor cable pan using in mechanizeworking face is designed into fixtureless join way . this way suits fully - mechanized and coventionally - mechanized coal winning face 文摘:将机械化采煤工作面刮板输送机电缆槽之间的联接，设计成无紧固件的联接方式。适用于综采、高档普采等机械化采煤工作面。
The range of pressure reducing at the lower coal side - face , the position of peak stress , the concentration degree of pressure during mining the lower coal after mining the upper coal , and the relation of them are studied 研究了上煤层开采后下煤层开采过程中，采煤工作面两侧应力降低区范围、峰值应力的位置、应力集中的程度以及与上煤层开采时的对比关系。
It is for this purpose that a predicting model for the amount of gas emitted from the coal face according to the neural network theory is established , and its influential factors are analyzed in a sequence of weighted order to determine the key factors 为此，应用神经网络理论，建立了采煤工作面瓦斯涌出量的预测模型，对其影响因素进行了权重排序，并确定了关键因素。
Also the new ideas and the results of theoretic calculation are proved by in - situ measurement and experimentation in some two top coal caving mining faces , and the initial safe supporting strength in coal mining face be concluded 在此基础上提出最小支撑强度和最大支撑强度的观点，指出了决定它们取值大小的因素，最后通过两个放顶煤工作面部分实验和现场的测试，对提出的观点及理论计算值进行了验证，从而得出了采煤工作面的安全初撑强度。
As the largest coal mining machinery manufacturer , the chinacoal zhangjiakou coal mining machinery co . , ltd . mainly produces flexible afc and related compatible bridge stage loader , crusher , matilda unit and plough used underground , consisting totally 500 sizes , 82 series and 10 categories 公司作为我国最大的煤矿专用设备制造企业，主要产品是煤矿井下采煤工作面用可弯曲刮板输送机及其配套的桥式转载机、破碎机、皮带机自移机尾、转载机自移装置、刨煤机等，现有产品10大类82个系列约500多个规格。
The research project in this thesis is " study on measurement and control system for vacuum magnetic switchgear based on intel 80c196kb " , which is a continuation project of " study on measurement and control system for vacuum magnetic swichgear based on plc " and is sponsored by education committee , science and technology committee of shanxi province . the reason why this project is put forward is because the cost of plc measurement and control system is high , and it is not adaptable to large - scale production . the main contents of this project is aimed at solving the key problems of centralized control and integrated protections of high capacity motors used in high yield and efficiency automation coal faces 本文研究的内容是“基于intel80c196kb控制的矿用真空磁力控制站测控系统的研究” ，它是山西省科技攻关项目“基于plc控制的矿用隔爆兼本质安全型组合磁力控制站的研究” (项目编号为no . 20002013 )的后续课题，主要是针对plc控制系统成本高，不利于规模化生产的缺点而提出的，该课题的研究内容主要是解决矿井高产高效综合自动化采煤工作面大型电动机的集中控制和保护等问题。
The research project in this thesis is a part of " study on flameproof and intrinsically safe intelligent vacuum magnetic - switchgear ( fisivms ) " ( no . 20002013 ) , which is aimed at solving the key problems of centralized control and integrated protection of high capacity motors in high yield and efficiency automation coal faces and sponsored by education committee , science and technology committee of shanxi province 本文研究的内容是山西省科技攻关项目“矿用隔爆兼本质安全型智能化真空磁力控制站的研究” ( no 20002013 ) ，主要是针对矿井高产高效综合自动化采煤工作面大型电动机的集中控制和保护问题提出的。
