公式表(48-79)

-48-密封结构1、静密封接触式动密封的图例及画法见表类别图例画法垫片密封密封垫片两面分别与被密封件端面接触，被密封的零件端面一般画为不接触（图a,b）密封件为软材料时，应充满凹槽，即四周均无缝隙（图c）填料密封填料应充满密封槽，壳体与法兰盘在轴向应有间隙管道连接密封螺纹连接处的密封材料（麻、胶）等不画出（图a）橡胶圈密封（图b）、球头密封（图c）与连接件是线接触，应画成相切图d为扩口锥面密封。螺母与压套端面接触，压套、接头体与管子间是锥面接触自紧式密封密封件是B形环和C形环，其外圆柱面与被密封件接触-49-2、接触式动密卦接触式动密封的图例及画法见表类别图例画法毛毡密封毛毡应充满密封槽，与轴颈相连触，密封盖与轴颈间画出间隙（图a）。压盖与壳体端面可接触（图b），也可画出间隙（图c）。用螺纹压盖时，毛毡画法如图c压盖填料密封密封环或填料用压盖压紧，其轴向各端面相互接触。压盖与壳体端面间，压盖与轴颈间均留有间隙图a。压盖与壳体径向无间隙，上密封环与轴颈间，下密封环与壳体间均有间隙，以存贮润滑油（图b）皮碗密封一般将皮碗固结在不动件上图a、b分别用压盖和挡圈把把皮碗固结在壳体上，皮碗外径与壳体内径靠紧，皮碗唇与运动件径向接触，唇口应朝向被密封处图a所示结构（或形式）主要用于防尘图b所示结构（或形式）主要用于防漏图c是轴不动，壳体旋转的皮碗密封结构涨圈密封涨圈槽在轴上（图a），或在壳体上（图b），槽底画出间隙。涨圈与槽的一个侧面接触，另一侧面画出间隙图c有内、外衬套，以备磨损后更换-50-3、非接触式动密封非接触式动密封的结构及画法见表类别结构及画法间隙密封甩油环密封曲路迷宫密封-51-常用滚动轴承类型.特点简图类型代号类型名称所受负荷方向轴承限制轴外壳移动能力说明调心球轴承径向负荷轴外壳的两面轴向位移限制在轴承的轴向游隙限度内允许在内圈轴对外圈外壳有相对倾斜2度-3度的条件下工作圆锥孔调心球轴承同上.可以调整径向游隙及轴向游隙调心滚子轴承径向负荷;任一方向的轴向负荷可达未被利用的允许径向负荷的25%轴外壳的两面轴向位移限制在轴承的轴向游隙限度内允许内圈(轴)对外圈(外壳)有较大的倾斜圆锥孔调心滚子轴承同上.可以调整径向游隙及轴向游隙推力调心滚子轴承一方向的轴向负荷;可承受以轴向负荷为主的径.轴向联系负荷限制轴外壳一方向的轴向位移与推力球轴承相比,允许较高的转速圆锥滚子轴承径向负荷;一方向的轴向负荷可达未被利用的允许径向负荷的70%不宜单独用以承受轴向负荷;当成对配制使用时,可以承受纯径向负荷;可以调整轴向和径向游隙-52-推力球轴承一方向的轴向负荷不限制轴外壳的径向外移双向推力球轴承任一方向的轴向负荷深沟球轴承径向负荷及径向和轴向同时作用的联合负荷轴外壳的两面轴向位移限制在轴承的轴向游隙限度内在推力球轴承不适应的转速情况下,能承受轴向载荷角接触轴承径向负荷;一方面的轴向负荷随接触角a的增大而增大将一对轴承的外圈同名面相对安装时,轴(外壳)的任一方向的轴向位移,可限制在轴承的轴向游隙限制内外圈无挡边圆柱滚子轴承径向负荷不限制轴(外壳)的轴向位移内圈(带保持架及整套滚子)和外圈可分开安装内圈无挡边圆柱滚子轴承内圈和外圈(带保持架及整套滚子)和外圈可分开安装-53-双列圆柱滚子轴承径向负荷不限制轴(外壳)的轴向位移内圈(带保持架及整套滚子)和外圈可分开安装.能承受较大径向负荷圆柱孔双列圆柱滚子轴承同上.可以调整径向游隙滚针轴承径向负荷不限制轴(外壳)的轴向位移主要用在径向尺寸受限制的机构中.在径向负荷相同的条件下,与其他类型轴承比较,其外径最小穿孔型冲压外圈滚针轴承调心球轴承外形尺寸标准外形安装尺寸-54-标记示例：滚动轴承120GB/T281-1994当量动载荷Pr=XFr+YFa当量静载荷Por=XFr+YoFafoFa/CoreY当量动载荷当量静载荷0.1720.192.3Por=0.6Fr+0.5Fa当Por＜Fr时，取Por=Fr0.3450.221.990.6890.261.71Ｐr=Fr1.030.281.551.380.31.452.070.341.31Pr=0.56Fr+Yfa3.450.381.155.170.421.046.890.441轴承代号尺寸/mm安装尺寸/mm基本额定载荷/kN极限转速/(r/min)dDBrsmindaDarasmaxCrCor脂润滑油润滑０２系列6200103090.615250.65.12.38190002600062011232100.617270.66.823.05180002400062021535110.620300.67.653.72170002200062031740120.622350.69.584.781600020000620420471412641112.86.6514000180006205255215131461147.881200016000620630621613656119.511.595001300062073572171.14264125.515.285001100062084080181.14773129.51880001000062094585191.15278131.520.57000900062105090201.15783135.023.267008500621155100211.564911.543.229.260007500621260110221.5691011.547.832.856007000621365120231.5741111.557.240.050006300621470125241.5791161.560.845.048006000621575130251.5841211.566.049.54500560062168014026290130271.554.24300530062178515028295140283.263.840005000621890160302100150295.871.538004800621995170322.11071582.111082.8360045006220100180342.11121682.112292.834004300eFrFa当eFrFa当-55-０３系列63001035110.615.030.00.67.653.4818000240006301123712118.031.019.725.0817000220006302154213121.036.0111.55.4216000200006303174714123.041.0113.56.58150001900063042052151.127.045.0115.87.88130001700063052562171.13255122.211.5100001400063063072191.13765127.015.290001200063073580211.544711.533.219.280001000063084090231.549811.540.824.070009000630945100251.554911.552.831.86300800063105011027260100261.838.06000750063115512029265110271.544.853006700631260130312.172118281.851.850006300631365140332.1771282.193.860.545005600631470150352.1821382.110568.043005300631575160372.1871482.111276.840005000631680170392.1921582.112286.538004800631785180413991662.513296.5360045006318901904331041762.5145108340043006319952004531091862.51551223200400063201002154731142012.517214028003600０４系列64031762171.124.055.0122.510.8110001500064042072191.127.065.0131.015.295001300064052580211.534711.58.219.285001100064063090231.539811.547.524.5800010000640735100251.544911.556.829.56700850064084011027250100265.537.56300800064094512029255110277.545.556007000641050130312.1621182.192.255.253006700641155140332.1671282.110062.548006000641260150352.1721382.110870.045005600641365160372.1771482.111878.543005300641470180423841662.514099.538004800641575190453891762.515511536004500641680200483941862.5162125340043006417852105241031923175138320040006418902255441082073192158280036006420100250584118232322219524003200-56-圆形螺母圆螺母（GB/T812－1988）和小圆螺母（GB/T810－1988）Ｄ≤Ｍ100x2，槽数４，Ｄ≥Ｍ105x2，槽数6。标记示例螺纹规格Ｄ＝Ｍ16x1.5、材料为45钢、槽或全部热处理后硬度35～45ＨＲＣ、表面氧化的圆螺母的标记：螺母ＧＢ／Ｔ812Ｍ16x1.5螺纹规格Ｄ＝Ｍ16x1.5、材料为45钢、槽或全部热处理后硬度35～45ＨＲＣ、表面氧化的圆螺母的标记：螺母ＧＢ／Ｔ810Ｍ16x1.5螺纹规格DxP(6H)GB/T810GB/T812dkmnmintminCc1dkd1mnmintminCc1M10x1206420.50.522168420.50.5M12x1.25222519M14x1.5252820M16x1.5283022M18x1.53052.5322452.5M20x1.5323527M22x1.53583830101M24x1.5384234M25x1.5-1M27x1.5424537M30x1.5454840M33x1.548524363M35x1.5---M36x1.5526355461.5M39x1.5555849M40x1.5-M42x1.5586253M45x1.5626859M48x1.5681072611283.5M50x1.5---M52x1.57283.57867-57-M55x2--M56x278185741M60x2809079M64x2859284M65x2-M68x29010088M72x295121059315104M75x2----M76x21001041.511098M80x2105115103M85x2110120108M90x211512511218125M95x2120130117M100x212512535122M105x213015140127M110x2135150135146M115x214015514022M120x2145146160145M125x2150165150M130x2160170155M140x21701818016526M150x2180200180167M160x319521.521019021.5M170x3205167220200M180x32202223021030M190x3230240220M200x3240250230垂直度δ按Ｇ