The pressing challenge of occupational diseases among miners is considered. The data for different kinds of occupational diseases, their distribution in years and connection of the incidence with the quality of equipment used is cited.
The results of studies of impact processes, including the system piston - striker - rod, are considered. The energy of the shock pulse family at the impact of the piston with the striker is 10-20 % higher than this indicator at the impact with the solid piston. Based on the results of bench studies, the design of a perforator with a dual percussion system was designed and tested in the conditions of the Kirov mine of ОАО Apatit.
