HYDRAULIC PERCUSSION SYSTEM Russian patent published in 2004 - IPC

FIELD: mining engineering, construction industry and municipal engineering, in particular, equipment for breaking-off strong materials and driving-in of rod-like members into ground.

SUBSTANCE: hydraulic percussion system has at least one hydraulic pump with safety valve, pressure pipeline, single base and hydraulic percussion devices mounted on single base and adapted to be individually switched on by predetermined force applied by static drawing-in of working tool. Hydraulic percussion devices are designed for delaying of striker backward stroke by time sufficient for establishment of predetermined value P₃ of pressure P in control chamber of hydraulic distributor. Regulating hydraulic apparatus is arranged at input of each hydraulic percussion device in feeding circuit thereof for restricting flow of liquid from hydraulic percussion device into pressure pipeline and to other hydraulic percussion devices. Pressure pipeline is connected to regulating hydraulic apparatuses through flow divider arranged in the immediate vicinity of hydraulic percussion devices.

EFFECT: increased efficiency, enhanced reliability in operation, increased service life, optimal output characteristics of system, such as striking power and energy of percussion imparted by each percussion device, with any number of simultaneously operating hydraulic percussion devices due to changed principle of operation and introducing of liquid distributing members.

1 dwg