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《齿轮系传动比计算》课件PPT本课件将介绍齿轮传动的定义、基本构造、工作原理、传动比的计算方法以及应用举例让我们一起探索齿轮传动的奥秘吧!齿轮传动的定义What areGear Typesof GearsImportance ofSystemsGear SystemsThereare variousGear systems aretypes ofgears,Gear systems aremechanical devicesincluding spurgears,widely used inused to transfer helicalgears,bevel machineryand vehiclesrotationalmotion gears,and wormgears.to increasetorque andfromone shaftto optimizespeed.another.齿轮传动的基本构造Spur GearsHelical GearsBevel GearsSpurgears havestraight Helicalgears haveangled Bevelgears haveconical-teeth andare themost teeth,which allowsfor shapedteeth andare usedcommontype ofgear smootherand quietertotransfermotionused ingear systems.operation.between non-parallelshafts.Worm GearsWormgears areused totransmitmotion betweenperpendicularshafts andprovidehigh gearreductionratios.齿轮传动的工作原理1Meshing of2Transfer of3Direction ofTeethTorque RotationTheteeth oftwo Asthe gearsrotate,The directionofgears engagewith torqueis rotationin ageareach other,transferred fromsystem dependsontransmitting the driving gearto therelative sizesrotationalmotion.the driven gear.and arrangementsof the gears.齿轮传动比的定义What isGear Importanceof CalculatingGearRatio GearRatio RatioGear ratio isthe ratioGearratiodetermines Gearratio canbeof the number ofteeth thespeed andtorque calculatedby dividingbetweentwo gearsin relationshipbetween thenumber ofteetha gearsystem.the drivingand drivenon the drivengear bygears.thenumberof teethonthedriving gear.齿轮传动比的计算方法1Method1:Number ofTeethSimplydivide thenumber ofMethod2:Pitch Diameter2teeth onthedrivengear bythenumber ofteeth onthe drivinggear.Divide the pitch diameterof thedrivengearbythepitch3Method3:Gear Modulediameterof thedrivinggeartocalculate gearratio.Calculate gearratio bydividingthe moduleof thedriven gearbythe moduleofthedrivinggear.齿轮传动比的应用举例Clock MechanismCar TransmissionIndustrial MachineryGear systemsareusedinGearsystemsin carclocksto translatethe transmissionsallow forGearsystemsarerotation ofa springinto smoothgear shiftingand extensivelyused inthemovement ofclock efficientpower transfer.industrial machinerytohands.transmit powerandcontrol speed.总结和要点工作原理1Key Takeaways2齿轮传动是一种常见且重要的机械传动方齿轮传动通过齿轮的啮合传递旋转运动和式扭矩传动比计算应用领域34传动比由齿轮的齿数、节圆直径或模数决齿轮传动广泛应用于钟表、汽车、工业机定械等领域。