Operation Factors of Pneumatic Hammer with Reduced Volume Front Chamber

The methods of increasing energy and operation parameters of a pneumatic hammer with an air distribution valve are reviewed. The algorithm of restructuring impact capacity of a pneumatic hammer with an elastic ring valve in the back stroke chamber of the hammer piston is proposed: it is suggested to use a feed source with an increased-pressure energy carrier. The algorithm was employed in designing and manufacturing a prototype model of the hammer. The actual operation factors of the prototype model are determined on a lab-scale bench tester: impact energy, impact frequency, energy source flow rate. After processing of indicator pressure charts, compressed air flow rate per unit energy output is assessed.