Roof bolt drill pot drive

Details Roof bolt drill pot drive Roof bolt drill pot drive

1988-09-02

1989-08-15

Yost, Frank T.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 55, 173 57, B25B 2100

Patent

active

048563846

ABSTRACT:
A mining roof bolt drill pot drive wherein the drill chuck and the bolt tightening socket are coaxially mounted and permanently coupled to and simultaneously driven by a drive motor. The drill chuck is directly driven by the drive motor and the bolt socket is driven via a reduction planetary gear box giving speed reduction and torque multiplication. An automatic valve for supplying cooling water to the drill during drilling and allowing excess water together with expended sheer pins to be discharged from the base of the drill pot is also described and claimed.

REFERENCES:
patent: 2606472 (1952-08-01), Curtis et al.
patent: 3141511 (1964-07-01), O'Leary
patent: 3218893 (1965-11-01), Madison et al.
patent: 4294317 (1981-10-01), Amoroso
patent: 4298073 (1981-11-01), Yates

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