ICS73.100.99D98备案号:15481-2005MT中华人民共和国煤炭行业标准MT/T776-2004代替MT/丁776-1998煤矿机械液压系统总成出厂检验规范Specificationforroutineinspectionofcoalminingmachine-hydraulicsystemassembly2004-12-14发布2005-06-01实施国家发展和改革委员会发布MT/T776-2004目次前言·························································，··，·，········································，···⋯⋯n1范围·······························，····，········································，··························⋯⋯12规范性引用文件··································，·························································⋯⋯I3技术要求····················。····························，·················································⋯⋯14试验方法················································。························，····························⋯⋯45检验规则······························································································。⋯‘····⋯⋯56标志、包装及运输···················，··，····································································⋯⋯5MT/T776-2004前言本标准是对MT/T776-1998(煤矿机械液压系统总成出厂检验规范》的修订。本标准代替MT/T776-1998.本标准和MT/T776-1998相比主要变化如下:—增列了伺服阀液压系统的清洁度指标(见表1);—增加了对液压马达的设置要求(见3.5.1和3.5.3);—增加了“诊断和监控”(见3.12);—标志、包装及运输中的要求更加细致、具体(见第6章)。本标准由中国煤炭工业协会科技发展部提出。本标准由煤炭工业煤矿专用设备标准化技术委员会归口。本标准起草单位:煤炭科学研究总院上海分院。本标准主要起草人:胡大邦、冯晓迪。本标准于1998年11月首次发布，本次为第一次修订。MT/T776-2004煤矿机械液压系统总成出厂检验规范1范围本标准规定了煤矿机械液压系统总成出厂检验的技术要求、试验方法、检验规则、标志、包装及运输。本标准适用于以液压油为工作介质，工作压力不高于31.5MIa的煤矿机械液压系统总成的出厂检验。2规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。GB/T3766-2001液压系统通用技术条件(eqvISO4413:1998)GB3836.1-2000爆炸性气体环境用电气设备第1部分:通用要求(eqvIEC60079-0;1998)GB/T14039-2002液压传动油液固体颗粒污染等级代号(ISO4406:1999>MOD)GB/T17489-1998液压颗粒污染分析从工作系统管路中提取液样(idtISO4021:1992)MT/T459-1995煤矿机械用液压元件通用技术条件ISO4407:2002液压传动油液污染用光学显微镜计数法测定颗粒污染ISO11500:1997液压传动利用遮光原理自动计数测定颗粒污染技术要求资料或文件出厂时应具有下列资料或文件。.1文件应包括以下有关内容:a)液压系统原理图;b)液压元件的名称、型号及制造厂名称;C)硬管的管径和壁厚，软管的规格和型号;d)液压缸的活塞和活塞杆的直径