Impact device with fluid tool rotation motor

Details Impact device with fluid tool rotation motor Impact device with fluid tool rotation motor

1979-08-07

1981-09-15

Schroeder, Werner H.

Tool driving or impacting

Impacting devices

With means for rotating tool

B25D 1600, B25D 912

Patent

active

042892090

ABSTRACT:
A drilling machine including a rock drill comprising a striking piston fitted to reciprocate in a cylinder. The piston is driven by a pressure medium. A rotation motor is provided and is driven by a pressure medium. A pump piston is permanently connected to a striking piston in concentric relation and arranged to travel in a pump cylinder. The cylinder is concentric with the cylinder that operates the striking piston and is axially spaced therefrom. The pump piston is arranged to provide a pump pressure medium to the rotation motor.

REFERENCES:
patent: 871594 (1907-11-01), Jones
patent: 1080880 (1913-12-01), Bayles
patent: 1464809 (1923-08-01), Curti
patent: 3741316 (1973-06-01), Alajouanine
patent: 3822752 (1974-07-01), Montabert
patent: 4039033 (1977-08-01), Salmi
patent: 4103746 (1978-08-01), Reynolds

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