Bolt delivery system

Details Bolt delivery system Bolt delivery system

1996-01-24

1997-01-28

Graysay, Tamara L.

Hydraulic and earth engineering

Miscellaneous

4052591, 29809, E21D 2000

Patent

active

055972675

ABSTRACT:
The present invention relates to a device for setting rock bolts. The device employs a common element for affixing the end of a feed shell with respect to a rock surface, stabilizing the feed shell and providing a common centralizer for centering all subsequent bolt setting operations. The device also has a bolt delivery system which stores, advances and positions the bolts in line with a bolt driver. The bolt delivery system has a bolt magazine which, when in a work position, advances bolts along peripheral surfaces into a position where they are engaged by a bolt driver. The bolt so engaged is then advanced into the centralizer at which point the bolt magazine is rotated away from the engaged bolt to a park position where it will not interfere with the bolt driver as it continues to advance the bolt. The bolt magazine preferably also serves as a bolt plate magazine which accommodates bolt plates with which the bolts are engaged. The bolt plates are stabilized by a bolt plate channel having an opening through which the bolt plates can exit the magazine.

REFERENCES:
patent: 4226559 (1980-10-01), Prebensen
patent: 4229124 (1980-10-01), Frey et al.
patent: 4420277 (1983-12-01), Hibbard et al.
patent: 4473325 (1984-09-01), Beney et al.
patent: 4832536 (1989-05-01), Spross et al.
patent: 5114279 (1992-05-01), Bjerngren et al.
patent: 5165825 (1992-11-01), Wallin

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