METHOD FOR CONTROLLING STRIKER OF ELECTROMAGNETIC PERCUSSION - ACTION MACHINE Russian patent published in 2004 - IPC

FIELD: electric machine engineering, namely manufacture of percussion tools and specialized percussion-action machines. SUBSTANCE: method comprises steps of providing engagement of striker with tool; superimposing upon natural oscillations of striker system subjected to action of elastic members, outer periodical drawing pulses created by means of electromagnetic coil. Novelty is relation between parameters of intrinsic oscillations and outer pulses selected in such a way that to accumulate all energy of striker recoil from tool inside elastic members of oscillation system and to sum it with energy of said periodic pulses and to convert summed energy to kinetic energy of translatory motion of striker towards tool; setting frequency of periodic drawing pulses more than frequency of natural oscillations of striker system. EFFECT: enhanced efficiency of machine for working heterophase materials with variable rigidity, increased maximum frequency of percussions. 5 cl, 5 dwg