Rock drilling machine, especially for underground mining

Details Rock drilling machine, especially for underground mining Rock drilling machine, especially for underground mining

1988-06-03

1989-10-31

Neuder, William P.

Boring or penetrating the earth

With tool drive prime mover or above-ground mechanical...

192936, 192 85AT, 279 4, E21B 302

Patent

active

048770949

ABSTRACT:
A rock drilling machine, particularly for underground excavations comprises a drilling carriage, and a rotary drilling drive arranged in a longitudinally displaceable manner on the drilling carriage, the rotary drilling drive having a drive shaft, an adaptor connected with the drive shaft for joint rotation therewith and having a threaded end for form-locking receipt of drilling rods with a respective counter thread, and a clamping head co-rotating with the drive shaft for force-transmitting receipt of outwardly smooth drilling rods, the adaptor being arranged forwardly of the clamping head as considered in a drilling direction, the threaded end of the adaptor extending outwardly beyond the clamping head for free observation and being releasably mounted on a part of the drive shaft independently of the clamping head.

REFERENCES:
patent: 2626692 (1953-01-01), Sloan
patent: 2719620 (1955-10-01), McDonald
patent: 4019378 (1977-04-01), Keller et al.
patent: 4319516 (1982-03-01), Rohm
patent: 4349207 (1982-09-01), Fink
patent: 4566705 (1986-01-01), Senny

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