机械基础及驱动基础教程1.齿轮篇FUNCTIONOFGEARS齿轮的作用GEARTYPES齿轮的类型SPURGEARCHARACTERISTICS直齿轮的特点HELICALGEARCHARACTERISTICS斜齿轮的特点WORMGEARCHARACTERISTICS蜗轮蜗杆的特点BEVELGEARCHARACTERISTICS伞齿轮的特点HYPOIDGEARCHARACTERISTICS准双曲面齿轮的特点ENCLOSEDGEARING闭式齿轮传动ADVANTAGES优点2.驱动篇POWERTRANSMISSIONPRODUCTS动力驱动产品MOTORS电机电机的防护等级IPXX选择电机的防护选择电机的绝缘变频电机：防爆电机的分类：常用防爆电机的解释：MOUNTEDBEARINGS轴承BEARINGS轴承BEARINGS轴承COUPLINGS联轴器BELTDRIVES皮带驱动（皮带的类型）BELTDRIVES皮带驱动的特点CHAINDRIVES链轮驱动特点SPEEDREDUCERS减速机ADJUSTABLESPEEDDRIVES可变速驱动ADJUSTABLEMECHANICALSPEEDDRIVES机械式可调速驱动设备ADJUSTABLEELECTRICALSPEEDDRIVES电子调速CLUTCHES:MechanicalLockup离合器BRAKES:Electromagnetic电磁制动器完