Shear-type loader for a tunnel and gallery excavator

Details Shear-type loader for a tunnel and gallery excavator Shear-type loader for a tunnel and gallery excavator

1986-01-17

1987-05-12

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With material-handling means

299 64, 198514, E21C 3520

Patent

active

046644482

ABSTRACT:
A loading mechanism operating on a loading apron of a tunnel and gallery excavator or the like comprises an eccentric-carrying crank disk, a crank lever, a shear rake, and a link. The eccentric-carrying crank disk is rotatable about its axis in a single direction of rotation, and the crank lever is connected to an eccentric pivot on the eccentric-carrying crank disk. The crank lever is pivotally connected by a lever arm to the link, which is attached pivotally to the apron behind the eccentric-carrying crank disk with respect to the forward direction of travel of the tunnel and gallery excavator. The shear rake is constructed as a bent lever with a raking arm and a controlling arm and at the vertex of the angle formed between the raking arm and the shear rake is mounted on the eccentric pivot with a vertex joint. A first end of an operating lever is connected to the controlling arm by a first operating lever pivot joint, and a second end of the operating lever is connected in the vicinity of the middle of the link by a second operating lever pivot joint. An improved tunnel and gallery excavator using two of the improved loading mechanisms is also described.

REFERENCES:
patent: 1945340 (1934-01-01), Arentzen
patent: 2099981 (1937-11-01), Joy
patent: 2880842 (1959-04-01), Abraham
patent: 3277993 (1966-10-01), Arndt
patent: 3614162 (1971-10-01), Teeter
patent: 4047762 (1977-09-01), Bamford et al.

Affiliated with

Also associated with

Rating

Shear-type loader for a tunnel and gallery excavator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shear-type loader for a tunnel and gallery excavator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shear-type loader for a tunnel and gallery excavator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1797438