Tool driving or impacting – Impacting devices – Plural relatively moved hammer heads
Patent
1976-03-04
1977-07-19
Purser, Ernest R.
Tool driving or impacting
Impacting devices
Plural relatively moved hammer heads
91186, 91411A, 92 33, 92 65, B25D 906
Patent
active
040363090
ABSTRACT:
A rock drill has a housing accommodating pistons defining working chambers. Rotary drive of a drill steel has an overrunning clutch and a screw pair. The screw pair is arranged between the pistons and is formed by outer and inner helical threads respectively provided on these pistons. One of the pistons is kinematically connected with the housing, and the other piston which cooperates, during the drilling, with a chuck receiving the drill steel shank is in force transmitting connection with the rotary drive of the drill steel.
The invention is aimed at lowering vibration of the rock drill housing by arranging the screw pair of the rotary drive between the pistons.
REFERENCES:
patent: 841139 (1907-01-01), Gibson
patent: 1039704 (1912-10-01), Curtis
patent: 1932259 (1933-10-01), Warren
Kunegin Vladimir Ivanovich
Kurdjukov Alexandr Safronovich
Lipin Anatoly Alexeevich
Petreev Anatoly Mikhailovich
Rabko Vladimir Davydovich
Pate III William F.
Purser Ernest R.
LandOfFree
Double-piston rock drill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double-piston rock drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-piston rock drill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2288991