儀器工作原理aa齒輪徑向跳動(dòng)DFr,在齒輪一轉(zhuǎn)范圍內(nèi),測(cè)頭在齒槽內(nèi)或齒輪上,與齒高中部雙面接觸,測(cè)頭相對(duì)于齒輪軸線的最大變動(dòng)量。為此,齒徑向跳動(dòng)的檢查是借具有原始齒條齒形的測(cè)量頭進(jìn)行。圖所示,為用于這種檢查儀的原理示意圖。檢查時(shí),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(cè)量頭,依次插入齒輪的齒間內(nèi),并用指示表示出測(cè)量頭位置對(duì)齒輪轉(zhuǎn)動(dòng)軸線的跳動(dòng)量。用于檢查6級(jí)或6級(jí)以下精度圓柱,圓錐外齒輪及蝸輪蝸桿的徑向跳動(dòng)或端面跳動(dòng)。OperatingprincipleRadialrunoutDFrofgearringisthemaximumvariationofdistancefromthecentergeartothegageheadwhichcontactsthegeartoothatmiddletoothprofileofstandardgearrack,testingradialrunoutofgearringisputintopractice.OperatingprincipleisshownasFig.1.Whenchechingfixthetestedgearplacedonthearborbetweencentersofthetester,insertinggaggeheadintospaceofbothteethinturn,thenrunoutofthegageheadrelativetorataryaxisofthegearisshownbytheindicator.Formeasuringradialorfacerunoutofoutengagingcylindricandtaperedgears,wormandwormgear(Accuracy: class6). 主要技術(shù)參數(shù)Maintechnicalparameter