旋盤チャックの爪近傍で生ずる空気流の観察

概要

論文の詳細を見る
In order to reduce the aerodynamic noise of lathe chuck rotating at high speed, an air flow around jaws and front face of a three-jaw scroll chuck is observed by means of the tuft and tracer methods. Flow visualizations are carried out when heights of the jaw are 10, 20 and 40 mm and also the chuck rotating speeds are 1000, 2000, 3000 and 4000 min^<-1> . A characteristic vortex-like flow can be observed around the suction surface of the jaw and also at the outer surface of the chuck body closer to the front face. In addition, the region of the vortex-like flow spreads with the increasing Reynolds number and reduces with lowering the height of the top jaw. And the air flows around jaws and the front face of the chuck are classified into two types, i. e., the flows caused by the top jaw acting like a centrifugal pump and by the difference of pressure such as the vortex-like flow and the separation.
社団法人日本機械学会の論文
1999-09-25