Theoretical Analysis of the Tup Motion of a Forging Air Hammer : 2nd Report, The Relation between the Characteristics of the Tup Motion and the Most Adaptive Speed of Crank Shaft, etc.

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  • 空気ハンマタップ運動の理論解析 : 第2報, タップ運動の特性とクランク軸の本調子回転数との関係, その他
  • クウキ ハンマタップ ウンドウ ノ リロン カイセキ 2

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In the first report the foundamental equation about characteristics of the tup motion was replaced with the algebraic simultaneous equations of higher order applying successive approximation of integral, and their approximate solution was obtained. Now in this case several numerical calculations for a 500 kg air hammer of Beche type are attempted through the solution as follows. Characteristics of the tup motion are to be influenced by the speed of crank shaft driving the pump piston and the most adaptive or the principal speed which means that one cycle of single blow accords with one cycle of pump piston, is to be found. Moreover the torque of crank shaft, the air pressure and temperature in both cylinders are calculated. And then referring to the desertation of experimental research "Untersuchung eines Schmiede-lufthammers" the writer has found that characteristic curves obtained by our analysis are similar to these experimental records researched through the reliable installations with pickup, indicator and recorder.

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