紧固件相关参数.doc

紧固件 铆钉用通孔 铆钉公称直径d22.533.54568dh2.12.63.13.64.15.26.28.2注:摘自GB/T 152.1螺纹规格M1.6M2M2.5M3M3.5M4M5M6M8d23.74.55.66.48.49.610.612.817.6t11.21.51.62.42.72.73.34.6d11.82.42.03.43.94.55.56.69注:1 摘自GB/T 152.2 2 实用于沉头螺钉及半沉头螺钉紧固件沉头用沉孔螺钉规格ST2.2ST2.9ST3.5ST4.2ST5.5ST6.3ST8ST9.5d24.46.38.29.411.512.617.320t1.11.72.42.63.03.24.65.2d12.43.13.74.55.86.78.410注:1 摘自GB/T 152.2 2 实用于沉头自攻螺钉及半沉头自攻螺钉公称规格1.622.533.544.555.567d23.74.55.46.67.78.610.111.212.113.215.3t1.01.21.41.72.02.22.73.03.23.54.0d11.82.42.93.43.94.55.05.56.06.57.6注:1 摘自GB/T 152.2 2 实用于沉头木螺钉及半沉头木螺钉紧固件 圆柱头用沉孔螺纹规格M1.6M2M2.5M3M4M5M6M8M10M12d23.34.35.06.08.010.011.015.018.020.0t1.82.33.43.44.65.76.89.011.013.0d316d11.82.43.43.44.55.56.69.011.013.5注:1尺寸d1 、d2、d3、t的公差带均为H13 2摘自GB/T 152.3紧固件 六角头螺栓和六角螺母用沉孔螺纹规格M1.6M2M2.5M3M4M5M6M8M10M12M14d2568910111318222630d31618d11.82.42.93.44.55.56.69.011.013.515.5注:1摘自GB/T 152.4 2 对尺寸t,只要能制出与通孔轴线垂直的圆平面即可 3 尺寸d1的公差带为H13, 尺寸d2的公差带为H15。螺钉和螺栓的抗拉强度性能等级3.64.64.85.65.86.88.89.810.912.9M16M16抗拉强度N/mm2公称3004004005005006008008009001 0001 200man3304004205005206008008309001 0401 220维氏硬度(HV) max250250250250250250320335360380435注：摘自GB/T 3098.2外螺纹应力截面积计算公式：式中：d2螺纹中径的基本尺寸,mm； d3螺纹小径的基本尺寸（d1）减去螺纹原始三角形高度（H）的1/6值,mm H螺纹原始三角形高度（H=0.866 025P）,mm； P螺距,mm。粗牙螺纹M1.6M2M2.5M3M4M5M6M8M10M12M14M16M18M20螺纹的应力截面积 mm1.272.073.395.038.7814.220.136.65884.3115157192245细牙螺纹M81M101M101.25M121.25M121.5M141.5M161.5螺纹的应力截面积 mm39.264.561.292.188.1125167最小拉力载荷和保证载荷粗牙螺纹螺纹规格d螺纹的应力截面积Asmm2性能等级性能等级3.64.64.85.63.64.64.85.6最小拉力载荷(Asb max),N保证载荷(AsSp),NM35.031 6602 0102 1102 5109101 1301 4101 560M3.56.782 2402 7102 8503 3901 2201 5301 9002 100M48.782 9003 5103 6904 3901 5801 9802 4602 720M514.24 6905 6805 9607 1002 5603 2003 9804 400M620.16 6308 0408 44010 0003 6204 5205 6306 230M728.99 54011 60012 10014 4005 2006 5008 0908 960M836.612 10014 60015 40018 3006 5908 24010 20011 400M105819 10023 20024 40029 00010 40013 00016 20018 000细牙螺纹螺纹规格dP螺纹的应力截面积Asmm2性能等级性能等级3.64.64.85.63.64.64.85.6最小拉力载荷(Asb max),N保证载荷(AsSp),NM8139.212 90015 70016 50019 6007 0608 82011 00012 200M10164.521 30025 80027 10032 30011 60014 50018 10020 000M101.2561.220 20024 50025 70030 60011 00013 80017 10019 000M121.2592.130 40036 80038 70046 10016 60020 70025 80028 600M121.588.129 10035 20037 00044 10015 90019 80024 70027 300M141.512541 20050 00052 50062 50022 50028 10035 00038 800M161.516755 10066 80070 10083 50030 10037 60046 80051 800M181.521671 30086 40090 700108 00038 90048 60060 50067 000注：本处摘录了部分常用数据,不足时请查GB/T 3098.1自攻螺钉用螺纹螺纹规格ST1.5ST1.9ST2.2ST2.6ST2.9ST3.3ST3.5ST3.9ST4.2ST4.8ST5.5ST6.3P 0.50.60.80.91.11.31.31.31.41.61.81.8d1max1.521.902.242.572.93.33.533.914.224.85.466.25min1.381.762.12.432.763.123.353.734.044.625.286.03d2max0.911.241.631.92.182.392.642.923.103.584.174.88min0.841.171.521.82.082.292.512.772.953.433.994.70d3max0.791.121.471.732.012.212.412.672.843.303.864.55min0.691.021.371.601.882.082.262.512.693.123.684.34cmax0.10.10.10.10.10.10.10.10.10.150.150.15Y参考C型1.41.622.32.633.23.53.74.356F型1.11.21.61.82.12.52.52.72.83.23.63.6最小破坏力矩 N.m0.450.901.52.02.83.44.56.510.014.0自攻螺钉孔自攻螺钉孔是与P(螺距)、d2(底径)、板材厚度、材质相关的,一般以d2(底径)为基础,当底径处的宽度板材厚度时, 自攻螺钉孔d2(底径)；当底径处的宽度板材厚度时, 自攻螺钉孔d2(底径)；软质材料自攻螺钉孔偏小, 硬质材料自攻螺钉孔偏大。可按下面近似计算例如:1mm厚钢板ST4.2的自攻螺钉孔按最大外径和最大底径计算底径宽为P-C-( d1-d2)2tg3002=1.4-0.1-(4.22-3.1)2tg3002=0.65 按上底宽1, 下底宽0.65的等腰梯形,计算等腰梯形的高:(1-0.65)2tg300=0.15 则自攻螺钉孔= d2+0.152=3.1+0.3=3.4通常以试验数据为准。 粗牙螺栓、螺钉的拧入深度、攻丝深度和钻孔深度公称直径d钢和青铜铸铁铝通孔拧入深度h盲孔拧入深度H攻丝深度H1钻孔深度H2通孔拧入深度h盲孔拧入深度H攻丝深度H1钻孔深度H2通孔拧入深度h盲孔拧入深度H攻丝深度H1钻孔深度H23434765698671045.545.59867.5111081014575711108101412101216686813121012171512152081081016151214202016182410121013201815182524202330121512162422182130282427361620162030282428333632364620252024363530354745404557内螺纹钻孔直径螺纹孔径螺纹孔径M30.52.4M614.9M30.352.6M60.755.2M40.73.2M81.256.6M40.53.4M816.9M50.84.1M80.757.2M50.54.4M80.57.4D内螺纹大径D1内螺纹小径P螺距H原始三角形高度