INFLUENCE OF SOME CONSTRUCTIVE PARAMETERS OF DRIVE WITH PNEUMO-MECHANIC SYSTEM OF AIR DISTRIBUTION ON WORKINGS CHARACTERISTICS OF VIBRO-PERCUSSION MACHINES

Abstract

The choice of optimum constructive parameters of drives for providing of necessary workings characteristics of vibro-percussion pneumatic machines has always been actual, including pneumatic drives, air distribution systems of which are equipped with valvular air distributors.

The article presents the researches results of influence of some constructive parameters of the drive with the pneumo-mechanic distributing of compressed air on the workings characteristics of vibro-percussion machines. Some constructive parameters of the drive are determined: diameters of workings windows of the inlet elements of chambers of no-load and working motions, diameters of inlets and distance between the axes of the inlet elements of chamber of no-load and inlets. Thus for the choice of more perfect construction of the drive three constructions were examined: with the managed throttle in the lid of compensative chamber of no-load, with the managed throttle in the lid of compensative chamber of working motion and without the managed throttles in the lids of afore-mentioned chambers. Energy of blow, frequency of percussion, motion of piston-shock-worker and duration of cycle are chosen as the main workings characteristics of vibro-percussion machine.

The researches results allow to choose the optimum sizes of constructive parameters of the drive with the pneumo-mechanic system of air distribution for providing of necessary workings characteristics of vibro-percussion machine.