儀器工作原理aa齒輪徑向跳動DFr,在齒輪一轉(zhuǎn)范圍內(nèi),測頭在齒槽內(nèi)或齒輪上,與齒高中部雙面接觸,測頭相對于齒輪軸線的最大變動量。為此,齒徑向跳動的檢查是借具有原始齒條齒形的測量頭進行。圖所示,為用于這種檢查儀的原理示意圖。檢查時,將裝在芯軸上的被檢查齒輪,固定在儀器兩頂針間,把具有原始齒條齒形的測量頭,依次插入齒輪的齒間內(nèi),并用指示表示出測量頭位置對齒輪轉(zhuǎn)動軸線的跳動量。用于檢查6級或6級以下精度圓柱,圓錐外齒輪及蝸輪蝸桿的徑向跳動或端面跳動。OperatingprincipleRadialrunoutDFrofgearringisthemaximumvariationofdistancefromthecentergeartothegageheadwhichcontactsthegeartoothatmiddletoothprofileofstandardgearrack,testingradialrunoutofgearringisputintopractice.OperatingprincipleisshownasFig.1.Whenchechingfixthetestedgearplacedonthearborbetweencentersofthetester,insertinggaggeheadintospaceofbothteethinturn,thenrunoutofthegageheadrelativetorataryaxisofthegearisshownbytheindicator.Formeasuringradialorfacerunoutofoutengagingcylindricandtaperedgears,wormandwormgear(Accuracy: class6). 主要技術(shù)參數(shù)Maintechnicalparameter