aa 儀器工作原理 aa 齒輪徑向跳動DFr,在齒輪一轉范圍內,測頭在齒槽內或齒輪上,與齒高中部雙面接觸,測頭相對于齒輪軸線的變動量。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,并用指示表示出測量頭位置對齒輪轉動軸線的跳動量。
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。
Operating principle Radial runout DFr of gear ring is the maximum variation of distance from the center gear to the gage head which contacts the gear tooth at middle tooth profile of standard gear rack, testing radial runout of gear ring is put into practice. Operating principle is shown as Fig. 1. When cheching fix the tested gear placed on the arbor between centers of the tester, inserting gagge head into space of both teeth in turn, then runout of the gage head relative to ratary axis of the gear is shown by the indicator.
For measuring radial or face runout of out engaging cylindric and tapered gears, worm and worm gear (Accuracy: ≤class 6).
主要技術參數 Main technical parameter
被測齒輪模數 measuring gear module
齒輪直徑 Max. Diameter of gear
1-6 mm
150mm,300mm
測架轉動范圍 Swivel range of measuring stand
指示表分度值 Division Value of indicator
±90 °
0.001mm
儀器示值變化在10 次測量過程中,不大于下列規定: The variation of indication value of the tester during measuring 10 times does not exceed the value shown in following table:
aaaaaaaaa a測光滑表面 Testing smooth surface
測齒輪 Testing gear
aaaaaaaaaa ▲不用杠桿 ▲Without leveraaaa▲用杠桿 ▲With levera▲不用杠桿 ▲Without lever