Tool driving or impacting – Impacting devices – With means for rotating tool
Patent
1987-01-05
1988-04-12
Kazenske, E. R.
Tool driving or impacting
Impacting devices
With means for rotating tool
74438, B23B 4516, B25D 900
Patent
active
047368063
ABSTRACT:
Continuously revolving percussion drilling machine, which comprises a body (1), a drill shank (2) mounted rotatably and axially slidably in the body for causing impacts on the drill rod, an impact mechanism (3) positioned in the body for causing axial impacts on the drill shank, and a rotating device (4) for rotating the drill shank around its axis. The drill shank is provided with a toothing (8), which is coupled in direct engagement with a toothing (9) revolving in relation to the drill shank and rotating the drill shank, said toothing of the drill shank being axially displaceable in relation to said rotating toothing, so that the contact surfaces of the teeth of the toothing on the drill shank and of the toothing rotating the drill shank revolve and are exchanged constantly. The teeth operate cold and well lubricated. The rotating toothing may be a cogwheel or a tooth rim.
REFERENCES:
patent: 1459402 (1921-05-01), Johnson
patent: 3082741 (1963-03-01), Huffman
patent: 3166131 (1965-01-01), Worman
patent: 4002347 (1977-01-01), Wanner et al.
patent: 4073348 (1978-02-01), Schramm et al.
patent: 4229981 (1980-10-01), Macky
patent: 4261225 (1981-04-01), Zahrandik
patent: 4289209 (1981-09-01), Salmi
Paasonen Hannu
Salmi Pekka
Kazenske E. R.
OY Tampella AB
Wolfe James
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