机电设备检修标准(2014)

煤矿机电设备检修技术规范1总则·····························12通用部分···························22.1机械通用部分························22.2电气通用部分·······················133固定设备··························203.1矿井提升机························203.2主要通风机························303.3水泵···························333.4空气压缩机························424运输设备··························534.1带式输送机························534.2刮板输送机、转载机····················564.3窄轨电机车························594.4斜井人车·························634.5平巷人车·························654.6矿车···························664.7运输绞车·························684.8绳牵引连续运输车·····················704.9卡轨车··························724.10架空乘人装置·······················744.11齿轨车··························754.12无轨胶套轮机车······················764.13单轨吊··························785采掘设备··························805.1液压支架·························805.2采煤机··························855.3装煤机··························945.4装岩机··························975.5掘进机··························1005.6单体液压支柱·······················1045.7乳化液泵站························1086电气设备··························1116.1开关···························1116.1.1矿用隔爆型高压配电装置·················1116.1.2高压开关柜·······················1166.1.3矿用防爆型低压交流真空开关···············1216.1.4移动变电站用开关····················1276.1.56-10kV成套配电装置···················1296.1.60.4kV成套配电装置···················1366.1.7漏电保护装置······················1376.2变压器··························1376.2.1户外6—10kV及以下变压器················1376.2.2矿用油侵三相电力变压器···············1406.2.3矿用隔爆型移动变电站及矿用隔爆型干式变压器·······1436.3电动机··························1456.3.1交流电动机·······················1456.3.2直流电动机·······················1506.4辅助设备·························1546.4.1防爆充电机·······················1546.4.2矿用隔爆型煤电站综合保护装置··············1556.4.3矿用隔爆型照明信号综合保护装置·············1566.4.4矿用隔爆型检漏继电器··················1576.4.5通信设备························1606.4.6监测监控设备······················1687露天煤矿设备························1727.1P＆H2800XP电铲······················1727.1.1电铲机械························1727.1.2电铲电气························1867.2运输卡车·························2007.2．1170D/730E卡车机械·················2007.2．2170D/730E卡车电气··················2117.2．3CAT789机械传动卡车··················2207.3工程机械·························2257.3．1工程机械通用技术规范··················2257.3．2卡特彼勒994装载机···················2347.3．3卡特彼勒DIOR(3SK系列)履带式推土机···········2387.3．4卡特彼勒（16H）平路机·················2448附则····························249附录1、煤矿电气设备有关标准、规程、规定···········249附录2、CKJ系列交流真空接触器维修、检修技术规范········251附录3、真空开关试验方法···················260附录4、干式变压器主要绝缘材料表···············262附录5、瓷套管灌注工艺····················262附录6、低浓度甲烷传感器调校方法···············262附录7、本规范使用的计量单位及符号说明············2642通用部分2.1机械通用部分2.1.1紧固件2.1.1.1螺纹连接件和锁紧件必须齐全、牢固可靠。螺栓头部和螺母不得有铲伤、棱角严重变形。螺孔乱扣、滑扣时，允许扩孔，增大螺栓直径，但不能因扩孔而影响被扩工件的机械强度和工作性能。2.1.1.2螺母必须拧紧，拧紧后螺栓的螺纹应露出螺母1～3个螺距，不得在螺母下加多余的垫圈来减少螺栓露出长度。2.1.1.3螺栓不得弯曲，螺纹损伤不得超过螺纹工作高度的1/2，且连续不得超过一周。连接件螺栓的螺纹旋入孔内长度不得小于螺纹直径的1.5倍。沉头螺栓拧紧后，沉头部分不得凸出连接件的表面。2.1.1.4螺纹表面必须光洁，不得用粗制螺纹代替精制螺纹。2.1.1.5同一部位的紧固件规格必须一致，材质必须满足设计要求。主要连接部位或受冲击载荷容易松动部位的螺母，必须使用防松螺母或其它防松方法。2.1.1.6使用花螺母时，开口销应符合要求。使用止动垫圈时，包角应稳固；使用铁丝锁紧时，其拉紧方向必须和螺栓方向一致，接头应向内弯曲。2.1.1.7弹簧垫圈应有足够的弹性（自由状态开口重叠部分不得大于垫圈厚度的1/2）。2.1.1.8螺栓头部或螺母必须和相接触的部件紧贴。如该处为斜面时，应加相同斜度的斜垫。2.1.1.9铆钉必须不生锈，不变形，紧固有效，铆接对口不得有错动痕迹。2.1.1.10稳钉和稳钉孔相吻合，不松旷。2.1.2键和键槽2.1.2.1键的表面应光滑平整，规格符合要求，四角倒棱，材质的抗剪切强度不得低于45号钢的剪切强度。2.1.2.2键和轮毂键槽规格和公差符合标准。2.1.2.3键和键槽之间不得加垫。平键键槽磨损后，允许加宽原槽的5％。轴及轮毂的键槽宽度应一致。2.1.2.4装配楔键和切向键时，键初打入键槽的长度，不得小于键全长的80％，不得大于键全长的95％（钩头键不包括钩头的长度）。键与轮毂的接触长度不得小于轮毂宽度的80％。花键的接触齿数应不小于总齿数的2/3。2.1.2.5平键键槽的中心线与轴的轴心线的平行度、平键和键槽配合公差，均应符合技术文件的规定。2.1.5.5液力偶合器2.1.5.5.1泵轮、透平轮及外壳不得有变形、损伤、腐蚀或裂纹。外壳有轻微裂纹，可焊补修复，但应消除内应力。2.1.5.5.2修理时应做静压试验，充入0.3MPa的气压，将液力偶合器的充气口封住，保持5min，压力不得下降。2.1.5.5.3有离心转阀的液力偶合器，必须加试离心转阀的动作情况，其动作应灵活可靠。2.1.5.5.4液力偶合器检修后应做静平衡试验，其重心对旋转轴心的偏移不超过0.02mm。2.1.5.5.5液力偶合器必须采用难燃液为工作介质（调速型液力偶合器不受此限）。2.1.5.5.6易熔合金塞必须完整，其熔化温度应符合各型号液力偶合器的规定。2.1.7减速器箱体2.1.7.1减速器箱体不得有裂纹或变形，如果有轻微裂纹，允许焊补修复，但应消除内应力。铸铁箱体只允许在非主要受力部位焊补，如裂纹已贯通两轴孔时，必须更换。2.1.7.2减速器箱体接合面应平整严密，垫应平整无褶皱，装配时应涂密封胶，不得漏油。2.1.7.3减速器箱体结合面的平面度允差不得超过0.05mm。结合面上的划痕长度不得大于结合面宽度的2/3，深度不得超过0.3～0.5mm。2.1.7.4减速器箱体轴孔磨损后，在强度允许条件下，可扩孔镶套修复，但与其相对应的轴孔的平行度、两锥齿轮的垂直度允差应符合技术文件要求。2.1.7.5盖板不得有裂纹或变形，接触面应平整严密，平面度不得超过0.3mm。2.1.7.6机壳及盖板所有隔爆面，应符合GB3836.2《隔爆型电气设备d》的规定。2.1.8减速器试验2.1.8.1减速器应按技术文件选用润滑油或润滑脂，油量适当，油压正常。2.1.8.2空载跑合试验，正、反运转各半个h，应无异响，温升正常。2.1.8.3做3h满负荷试验，减速器温度不得超过生产厂家技术文件的规定。2.1.8.4试验时，减速器的结合面和各轴头无渗漏现象。2.1.9圆环链及链轮2.1.9.1圆环链节距伸长量应不大于原节距的3％。链环直径磨损量不得大于3mm。2.1.9.2链轮齿面应无裂纹或严重变形，最大磨损量：节距64mm及以下不得大于5mm；节距86mm及以上不得大于6mm（用圆环链平置于链轮上，检查圆环链上表面与轮毂的距离）。2.1.10密封件2.1.10.1密封件的拆装必须使用专用工具。各部密封件齐全完整，性能良好，不漏油。2.1.10.2重复使用或新更换的密封件，其质量应符合《GB2452.1-92》、GB9877.1-88》的规定。2.1.10.3浮动油封的密封环不得有裂纹、沟痕，必须成对更换，成对使用。2.1.10.4更换密封件时，应检查密封件的性能，如发现发粘、变脆、变色时，不得使用。密封表面无损伤，油封骨架不变形。2.1.10.5各部接合面的纸垫、石棉垫、耐油胶垫应平整，无褶皱，眼孔一致，符合原设计的尺寸和材质。2.1.10.6油封弹簧松紧适宜，油封硬度应为邵氏85～90度，在弹簧压力下其内径比轴颈小的压缩值应符合表2－1－10－1的规定。表2－1－10－1油封内径压缩值mm油封内径名义尺寸＞30～90＞90～180＞180油封内径比相应轴颈小1.5～2.02.0～2.52.5～3.02.1.10.7“O”型密封圈松紧适宜，装在槽内不得扭曲、切边，保持性能良好。2.1.11高压胶管与管接头2.1.11.1新的或重复使用的胶管，应符合下列要求：1接头无严重锈蚀、变形、毛刺，能顺利插入配合件，在无压工况下应可以自由旋转；2检修时必须重新更换“O”形圈和挡圈；3胶管外层橡胶在每米长度上其破损不多于两处，破损面