JB/T 6469-1992 汽轮机用倒锥外螺纹

K54中华人民共和圜机械行业标准JBT6469-1992汽轮机用倒锥外螺纹1992-08-06发布1993-01-01实施中华人民共和国机械电子工业部发布中华人民共和国机械行业标准JBT6469-1992汽轮机用倒锥外螺纹1主题内容与适用范围本标准规定了汽轮机用螺柱(栓)的倒锥外螺纹尺寸系列(螺纹耐中内螺纹仍采用普通螺纹)。本标准适用于汽轮机使用螺柱(栓)。本标准也适用于承受交变载荷下螺柱(栓)。引用标准GB196普通螺纹基本尺寸(直径1~600mm)定义具有锥度的、且锥度大端在螺纹端面、其牙形角中心线垂直于螺纹轴线的普通螺纹称为倒锥外螺纹倒锥外螺纹的大径、中径、小径均有倒锥度。基本形式4.1倒锥外螺纹锥度分为二种:3:1000;8:1000。4.2倒锥外螺纹的牙形为普通螺纹。其基本尺寸系列按GB196的规定选用4.3倒锥外螺纹的公称尺寸为锥体大端的公称尺寸代号M×××××表示倒锥度为3i=2,表示倒锥度为8:表示倒锥度表示螺距表示螺纹公称直径表示普通螺纹示例M120X4K1表示公称直径为120mm,螺距为4mm、倒锥度为3:1000的倒锥度外螺纹M90×6—K2表示公称直径为90mm、螺距为6mm、倒锥度为8:1000的倒锥度外螺纹。机械电子工业部1992-08-06批准1993-0101实施JBr6469-19926尺寸系列6.13:1000的倒锥外螺纹尺寸系列见表1、表2和图1。6.28:1000的倒锥外螺纹基本尺寸见表3、表4和图2R轴线图1表1(倒锥度3:1000m螺纹规格R12~M14M160.25~0.33M200.28~0.38M220.30~0.41M27~M120×30.33~0,46M130×4~M160×60.46~0.61表2(倒锥度3:1000)mm螺纹规格基本直径基本中昼径尺寸尺寸最大最小上偏差[下偏差最大最小上偏差下偏差小径最大M121210.8611.9511.7010.8210.7810.11M1414.7015.9515.7014.6614.62018.3819.9519.70/0.05-0.3018.3318.2817.29M229521.7020.3320M2423.7021.9420.7526.8726.62250024.9423.750.05M27×22725.7026.8726.62256525.5924.840.113027.73|29.8729.6227.6827.6226.21013-0.38M30×33028.0529.8729.62280027.9426.75M33×33331.0532.8732.62M363633.40358735.62333433.28-0.06-0.1231.67JBr6469-1992续表2mm螺纹规格基本直径基本中大径小径最大尺寸尺最大最小上偏差下偏差最最小上偏差下偏差M36×33634.0535.8735.6233.32.750.12M39×336.9936.9335.754239.0841.87141.6239.0238.9337.130.15M42×34240.0541.8741.6239.9939.9038.75M45×34543.0544.874.6242.9941.75M4848144.5247.8747.6244.4642.59M48×34846.0547.8747.6245.9945.8944.75M525248.7551.8751.62486948.5946.590.16M52×32|50.0551.8751.6249.994989-0.06M56X45653,4055.8755.6253.3453.245].6M60×36058.0559.8759.6256.75M60×457.455.67M64×361996160.75M64×44063.87636261.3461.2359.67M68×46865.4067.876,6265.3465.20.176367M72×372|70.0571.877.6268.75M72×47269.4071.8771.62-0.13-0.3869.2367.67M76×37674.0575.8775.6273.987387M76×47673.4075.8775.6273.3373.2271.67M85×385830584.8784.62829882.8781.75M85×485824084.8784.6282.3382220.1880.67M90X39088.0589.8789.62879887.8786.75M9o×49087.4089.8789.6287.338785.67M95×395930594.8794.6292.980.07M100×31009805|99.8799.62M100×410097.4099.8799.6295.67A110×3110108.0510987M110X110107.40109.87107.33107105.67MI15×3115113.05114.87114.62112.98112.86111.75M120×3120118.05119.87119.6217.98117.85116.750.20M120X4120117.40{119.87119.62117.33117.20115.67M130×4130127.401129.87129.62127.3127.19125.670.08-0.21M130×6130126.10129.8712.6212602125.89123.50JBr6469-1992续表2mm螂纹规格菡本直基本中稻大径中径尺寸尺寸最大最小上偏差下偏差最大最小上偏差下偏差/最大M135×4135132.4013487134.621323213218130.67MI40×4140134139030137.32137.18M140×614013610139.87139136.02|13588133.50M150×4150147.4014987149.62-013-0.38147.32147.18-0.08-0.22145.67ML50×6150146.1014987149.62146.02145.88143.50M160×4160157.40159.87159.621573215718155.67M60×6160|156101598715962156.02|15.88153.50图2表3(倒锥度8:1000大径(d-d4)螺纹规格螺距L=d+3tL=1.5d最大值最小值偏差值最大最大最小最大最小M273|26.796.590.270.24M303.529.7829.560.190.410.31M33|3.532.560.310.21390.45M3635.7635.540.220.340.240.490.38M3938.7638.540.220.360.260.460.360.53M424.541.7541.510.390.290.490.390.57M454.544.7544.510.4100.510.410.610.4747.7447.480,260.330.550.450.5051.745l.480.470.600.470.?00.55M565.555725460.500.650.500.760.59M605.559.7259.460.260.540.810.63M4663563202305804600.740.570.860.67A686|67.6567.370.610.920.71M?2|671.6571.370.280.650.970.76JBr6469-1992续表3大径差值(d-d4螺纹规槲螺距L=ldL=d+3tL=1.5d最大值最小值偏差值最大最小最大最小最大最小M766575.370.68M8079.370.280.720.560.880.691.0884.370.280.770.89M9o689.6589.370.280.810.630.761.220.94M9594.590.300.860.661.00M1006995999.290.900.70l.06M1106109.59109.290.990.771.150.901.481.16M1156M120M361214410.01120.8121.011.691.3IM140139.59139.290.301.260.981.421.111.47M1506149.59149.290.30l.351.05M160表4(倒锥度8mm螺纹規格甚本直径基本中大径中径小径最大尺寸尺大|最小上偏差下偏差最大最小上偏差下偏差2505126.7926.59-0,21-0.41|24.8|24.64-0.21-0.41231l27.5027.2925.48220.23-0.4M333330.73327832.5630.5030.2928.4M3636|33.4035.7635.54331632.9430.86一0.24460.24-0.463936.4038.76385436.1635.33.8645142.084.754.0.25/-0人388338594239.。0841.75415141.8341597-0.25|-04/3623M4844.7547.7447.4844.49442441.600.26-0.520.26-0.51M52524875517451.4848.4948245652.43|55.7255.452.1551.880.28-0.54-0.28-0.55M60564359.7259.465615558852.97M646460.1063.6563.3759.7559.4756.28M686864.1067.656737-0.35-0.63637563.47-0.35-0.6360.28M7268.10716571:37677567.474.28JBr6469-1992续表4mm螺纹规格舊本直径基本中径大尺寸尺寸最大最小上偏差下偏差最大最小上偏差下偏差径最大7672.1075.6575.3771.7571.47M808076.1079.6579.37757575.47063/22881.1084.6584.379086.1089.6589.385.7585.47M959591.1094.5994.2990.6990.3987.23M10010096.109,5999.2956995.399223M110110106.10109.59109.29102.23M115115111.10110.69110.39107.23M120120116.10一115.69115.39112.230.410.41-0.71M125125121.10124.59124.29120.69120.39117.23M130130126.1012569125.39122.23M140140136.10139.59139.29135.69135.39132.23MISO150146.10149.59149.29145.69145.39M160160156.101569155.39附加说明:本标准由上海发电设备成套设计研究所提出并归口本标准由上海发电设备成套设计研究所和上海汽轮机厂负责起草閂中华人民共和国机械行业标准汽轮机用倒锥外螺纹JB/T6469-1992机械科学研究院出版发行机械科学研究院印刷(北京首体南路2号邮编开本880×12301/16印张X/X字数XXX,XXXXX年XX月第X版19XX年XX月第X印刷印数1XXX定价 XXXXX元编号 XX. XXX机械工业标准服务网:htp:/www.jb.ac.cn