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Abstract

This article describes a pneumatic percussive mechanism with combined control of air inlet into chamber of idle pass and its physico-mathematical model, it is represented by form of system of differential equations, including: barodinamic, thermodynamic and baromehanic components, as such constructional assumptions and limitations. The solution of mathematical model for the pneumatic percussive mechanism is received recommendations to reduce resistance to movement of tapering hummer for the purpose of preserving its pretonic speed at the time of impact with the shunk end of the service tool. This constructive solution of the pneumatic percussive mechanism provides increased energy and impact frequency of pulse system.