すべり軸受でささえられた旋盤主軸の回転変動について

概要

論文の詳細を見る
Various observations and considerations on the fluctuation of rotational angular velocity of the main spindle supported in the plane bearings of a common lathe were made by measurements with an optical system, with the following conclusions. The fluctuation is caused by different factors in the high speed and the low speed regions. In the former, primary torsional resonance is caused by the natural torsional frequency of the main spindle and the driving system as a whole and the period of variation of rotational torque due to the teeth of spur gears driving the main spindle. In the latter, fluctuation of rotation takes place invariably from the insufficient exactitude of profile of the rotating part attached to the main spindle ; further, the variation is erratic on account of small rotating moment. To control such variations, it is effective to increase the number of reducing stages from the main motor to the main spindle, but harmful for the smooth rotation of spindle under low speed.
一般社団法人日本機械学会の論文
1958-06-25