Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable horizontally
Patent
1988-08-22
1989-12-05
Massie, Jerome W.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Cutter shiftable horizontally
299 75, E21C 2508, E21C 4700
Patent
active
048848484
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a device for exploiting rock materials, ores, coal or the like, comprising rotating tools being rotatably supported on a cantilever arm which can be lifted and lowered, and relates in particular to an openpit mining device comprising rolls or heads being arranged in transverse relation to the longitudinal axis of the cantilever arm and being equipped with bits.
2. Description of the Prior Art
Such known openpit mining de frequently comprise their own chassis, in particular an endless ground engaging track equipped chassis, and can be moved by an individual drive means. As is the case in connection with underground mining machines, the chassis can have connected thereto a loading equipment oriented in a direction towards material to be excavated and seizing the excavated material and transporting this material onto conveyors. The known openpit mining devices have in common that the cantilever arm is only swivellable around an approximately horizontal axis and thus exclusively in a height direction. In any given position of the machine, its working width is restricted to the width of the excavating tools, and for the purpose of covering a greater width, the openpit mining device must be moved and be brought into a new position. If the known machine were equipped with a plurality of cutting heads or rolls being arranged one beside the other as seen in axial direction, there were frequently used several drive motors, each of which was used to drive a maximum of two rolls arranged one beside the other as seen in direction of the axis of rotation, to be in the position to keep small the distance between adjacent rolls as required for the necessary gearing. However, there remained, when operating such devices, a rock rib between rolls or heads located adjacent as seen in direction of the axis of rotation, which rib was predetermined by the dimensions of the gearing. Therefore, these rock ribs had to be removed or crushed by means of separate tools or scrapers which was varyingly expensive in dependence on the properties of the rock. If, when working with the known device, the support was shifted in the lateral direction during downward cutting work, it was possible to continuously crush the ribs without separate equipment inasfar as the lateral angle of slope was adjusted to be sufficiently flat. Adjustment of steep lateral angles of slope, in particular of lateral slopes having an essentially vertically extending edge, was not easily possible with the known device.
SUMMARY OF THE INVENTION
The invention is based on a device of the initially mentioned type and aims at increasing the workable width of rock to be excavated without moving the device itself and without the necessity to have to increase the propelling power for the rotating tools. The invention aims at providing the possibility to arbitrarily adjust the lateral angle of slope and to cut even vertical lateral slopes without the aid of additional measures. For solving this task, the invention essentially consists in that the rotating tools are supported on a support and in that the support is supported on the cantilever arm for being shiftable in transverse relation to the longitudinal axis of the cantilever arm. On account of the rotating tools being supported on a support itself being supported on the cantilever arm for being shiftable in transverse relation to the longitudinal axis of the cantilever arm, a greater width can be worked upon by shifting the support with the position of the chassis of the device remaining in the same position. It is not necessary to increase the propelling power for the rotating tools.
In this case, the construction is preferably selected such that the free end of the cantilever arm has an enlarged head on which is fixed a guide means for the support. Such an enlarged head reliably makes sure that even high reactive forces are reliably absorbed, and, for the purpose of providing an arrangement being as compact as possible and being capable
REFERENCES:
patent: 3306663 (1967-02-01), Webster
patent: 3420577 (1969-01-01), Pentith
patent: 4664449 (1987-05-01), Barnthaler et al.
patent: 4749194 (1988-06-01), Schmid
patent: 4778221 (1988-10-01), Kolleth et al.
Bruns Bernward
Weissensteiner Hubert
Wrulich Herwig
Bagnell David J.
Massie Jerome W.
Voest-Alpine Aktiengesellschaft
LandOfFree
Device and method for exploiting material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for exploiting material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for exploiting material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2030519