Supporting arrangement for a feed device for a rock drilling mac

Details Supporting arrangement for a feed device for a rock drilling mac Supporting arrangement for a feed device for a rock drilling mac

1984-08-28

1987-06-30

Schran, Donald R.

Tool driving or impacting

With work engaging means supporting drive

Structure engages work at point diametrically opposed to tool

173 32, 173 34, E21C 1100

Patent

active

046763228

ABSTRACT:
A supporting arrangement for a feed device for a drilling machine of a rock drilling unit (2) comprising a feed device (3) for a drilling machine (4), a cradle (5) supporting the feed device longitudinally displaceably and a supporting device (10) which is extendable in parallel with the feed device for supporting the feed device against a tunnel wall. The supporting device is supported by the cradle so that it remains stationary with respect to the cradle when the feed device is displaced.

REFERENCES:
patent: 2840347 (1958-06-01), Feucht
patent: 2886290 (1959-05-01), Brennan et al.
patent: 3057416 (1962-10-01), Carlson et al.
patent: 3399734 (1968-09-01), Folinsbee
patent: 3951216 (1976-04-01), Crawshay et al.

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