仪器工作原理aa齿轮径向跳动DFr,在齿轮一转范围内,测头在齿槽内或齿轮上,与齿高中部双面接触,测头相对于齿轮轴线的最大变动量。为此,齿径向跳动的检查是借具有原始齿条齿形的测量头进行。图所示,为用于这种检查仪的原理示意图。检查时,将装在芯轴上的被检查齿轮,固定在仪器两顶针间,把具有原始齿条齿形的测量头,依次插入齿轮的齿间内,并用指示表示出测量头位置对齿轮转动轴线的跳动量。用于检查6级或6级以下精度圆柱,圆锥外齿轮及蜗轮蜗杆的径向跳动或端面跳动。OperatingprincipleRadialrunoutDFrofgearringisthemaximumvariationofdistancefromthecentergeartothegageheadwhichcontactsthegeartoothatmiddletoothprofileofstandardgearrack,testingradialrunoutofgearringisputintopractice.OperatingprincipleisshownasFig.1.Whenchechingfixthetestedgearplacedonthearborbetweencentersofthetester,insertinggaggeheadintospaceofbothteethinturn,thenrunoutofthegageheadrelativetorataryaxisofthegearisshownbytheindicator.Formeasuringradialorfacerunoutofoutengagingcylindricandtaperedgears,wormandwormgear(Accuracy: class6). 主要技术参数Maintechnicalparameter