Device in hammer machines

Details Device in hammer machines Device in hammer machines

1992-05-08

1993-05-04

Yost, Frank T.

Tool driving or impacting

Impacting devices

With means for rotating tool

173 73, 173131, E21B 102, E21B 2110

Patent

active

052072800

ABSTRACT:
Device in hammer machines. The device comprises a machine housing (1) and a hammer piston (2) movable to-and-fro in the machine housing. A drilling tool connected to the machine housing comprises a drill bit (5), a set of tubes (4) for rotating the drill bit and a set of rods (3) for transferring impact energy to the drill bit. A rod (11) situated adjacent to the drill bit is provided with an axial channel (7) and a radial channel (8) for supplying flushing medium to the flushing channel (6) of the drill bit. The distance (S) from the front end (9) of the drill bit to channel (8) is larger than the length (L) of the hammer piston (2).

REFERENCES:
patent: 1115898 (1914-11-01), Carter
patent: 2951467 (1960-09-01), Morrison
patent: 3050032 (1962-08-01), Carey
patent: 3322207 (1967-05-01), Foster
patent: 3329221 (1967-07-01), Walker
patent: 3410353 (1968-11-01), Martini
patent: 3747694 (1973-07-01), Kollandsrud
patent: 4993504 (1991-02-01), Rodert et al.

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