Determination of operability conditions for ring–shaped elastic valve in air hammer with variable structure of impact capacity

Abstract

Under consideration is the principal diagram of a percussive tool with a ring–shaped elastic valve installed in the air distribution system: the valve closes when contacting the housing and opens under action of elastic forces. The operability conditions and basic design parameters of the valve are determined. The authors characterize contact interaction between the ring–shaped valve and the side slide surface when the valve is closing. The balance of forces affecting the ring–shaped valve is shown.