mt 244.1-2005 煤矿窄轨车辆连接件 连接链

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1、ICS73.100.40D18备案号:15491-2005MT中华人民共和国煤炭行业标准MT244.1-2005代替MT244.1-1997煤矿窄轨车辆连接件连接链Carcouplerofdecauvilleformineconnectingchain2005-03-19发布2005-06-01实施国家发展和改革委员会发布MT244.1-2005目次前言········································································································，⋯⋯Q1范围

2、·······························································，···················。·····················⋯⋯12规范性引用文件·······，··········，·····，·················································。················⋯⋯13型号标注、品种和基本参数··································································

3、·············⋯⋯14技术要求·········································································，····························⋯⋯35试验方法·····························，·········································································⋯⋯56检验规则··············，································

4、························································，⋯77标志和包装··········，······················································，·································⋯⋯8MT244.1-2005前言煤矿窄轨车辆连接件是煤矿提升运输系统中涉及安全生产的重要部件，用量大且涉及面广。随着煤炭生产的发展，MT244.1-1997中规定的品种、规格已满足不了煤炭行业安全生产的需要，其检验规则也不够完善。因此，对MT244

5、.1-1997进行修订本标准从实施之日起，代替MT244.1-1997,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安全标准化技术委员会归口。本标准起草单位:国家煤矿防爆安全产品质量监督检验中心。本标准主要起草人:贾明惠、瞿慧、孙终。本标准所代替标准的历次版本发布情况:MT244-1991制定;MT244,1-1997修订。MT244.1-2005煤矿窄轨车辆连接件连接链范围本标准规定了煤矿窄轨车辆连接件连接链(以下简称连接链)的基本参数、技术要求、试验方法、检验规则、标志和包装。本标准适用于煤矿窄轨车辆使用的各种锻造链和焊接链。2规范性引用文件下列文件中

6、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/T224钢的脱碳层深度测定法GB/T229金属夏比缺口冲击试验方法GB/T233金属材料顶锻试验方法GB/T699优质碳素结构钢GB/T4159金属低温夏比冲击试验方法GB/T6394金属平均晶粒度测定法3型号标注、品种和基本参数3.、型号标注dXtXaXn链环节数内宽节距直径型号标记示例:直径32mm，节距140mm，内宽6

7、0mm，节数为3的连接链。标注示例:32X140X6OX3三环链，简写为032三环链。3.2品种a>单环链(见图1):d圈1MT244.1-2005b)双环链(见图2):图2c)三环链(见图3):图3d)万能链(见图4):曰︺日-图43.3甚本参数基本参数如表1和表2:MT244.1-2005表1尺寸，mm品种截面形状质#.kgdd,tar乙28336(4.0502530340簇4.6圆形32344(5.4366030352<-6.238356(7.2单环链2802831342簇4.250253033346<4.8椭圆3235