Voest-alpine Aktiengesellschaft

Sandvik Intellectual Property Ab

Voest-alpine Maschinenbau Gesellschaft M.b.h.

Voest-alpine Zeltweg Gesellschaft M.b.h.

Sandvik Mining and Construction Oy

Voest-alpine Bergtechnik Gesellschaft M.b.h.

Tamrock Voest-alpine Bergtechnik Gesellschaft M.b.h.

Voest-apline Maschinenbau Gesellschaft M.b.h.

Voest-alpine Berftechnik Gesellschaft M.b.h.

Erich Brandl

Alfred J Zitz

Bernhard Ebner

Kurt Schaffer

Arnulf Kissich

Herwig Wrulich

Franz Barnthaler

Otto Krassnitzer

Karl Schnedl

Wolfgang Koch

Gerald Essl

Oswald Tutzer

Alfred Marek

A cutting unit for use with a cutting apparatus suitable for creating tunnels or subterranean roadways and the like, includes a cutting arm configured for pivotal movement around at least one pivot axis and a cutting head mounted to the cutting arm. The cutting head includes at least one rotatable cutting element for detaching material from a rock face, and a clearing arrangement mounted to the cutting arm. The clearing arrangement has a clearing blade for pushing detached rock material onto a loading table of the cutting apparatus, the clearing blade being guided by a first guiding mechanism to allow a free movement of the clearing blade in a first direction.

Cutting apparatus using a clearing arrangement

A cutting apparatus suitable for creating tunnels and subterranean roadways includes independently pivoting supports that each carry a respective independently pivoting arm and a rotatable cutting head. Each cutting head, via the supports and arms, is configured to slew laterally outward in a sideways direction and to pivot in a vertical upward and downward direction. The supports and arms are mounted on a linear moving sled carried by a main frame.

Cutting apparatus

A cutting apparatus suitable for creating tunnels and subterranean roadways includes independently pivoting supports that each carries a respective independently pivoting arm and a rotatable cutting head. Each cutting head via the supports and arms is configured to slew laterally outward in a sideways direction and to pivot in a vertical upward and downward direction. The supports and arms are mounted on a linear moving sled carried by a main frame.

Cutting apparatus and method of operating

In a supporting device () for an advance working or mining machine (), including support props () and at least one roof bar (), the roof bar(s) (), on their sides facing away from the support props (), include(s) a plurality of support cylinders () with support stops, which can be separately braced against the roof.

Supporting device for an advance working or mining machine

In a cutting machine () with cutting heads or rollers () rotationally mounted on a pivotable cutting arm (), including a loading ramp or a conveyor () extending in the direction to the mine face for receiving and removing the cut material, wherein the cutting arm () is mounted on a carriage () displaceable on guides extending in the longitudinal direction of the machine, the carriage () carries guide rods () extending in the longitudinal direction of the machine and engaging in tubular guides () of the machine frame () carrying a chassis ().

Cutting machine

The joint-pin modular unit for articulately connecting a fork-type or stirrup device () with a connecting eye embracing a joint pin () of the fork-type or stirrup device (), includes at least one seal () provided between the connecting eye and the pin, wherein the joint pin () is rotationally guided in bearing bushes () of the fork-type or stirrup device () and annular seals () are arranged between the connecting eye and the bearing bush end faces located adjacent to the connecting eye. The externally located end faces of the pin () are closed by covers () tightly covering the bearing bushes (), wherein the surface of the pin is surrounded by a lubricant film and at least one substantially axial bore (), and a plurality of radial bores () leading to the surface of the pin, are provided for the supply of lubricant.

Hinge bolt modular unit

A method and device for drilling and setting adhesive anchor bolts close to the mine face during the cutting operation of a tunneling or mining machine which is capable of being displaced on a traveling mechanism and includes a cutting cylinder or cutting head rotationally mounted on a cantilever arm pivotable in a vertical direction, and optionally in a horizontal direction. The method is carried out in a manner where the substantially horizontal forward movement of the cantilever arm at break-in cutting is detected and a signal is generated during break-in cutting to block commencement of a working cycle for drilling and anchoring. A controller () for excavation of material on the mine face is networked with a controller () for actuation of the anchor drilling and setting device () via radio, electrical or optical lines ().

Method for boring and placing bolts for imbedding adhesively and device for carrying out this method

A device for sucking off drillings during the drilling of boreholes, comprising a suction fan (,) and a filter (,) as well as an opening closeable by a lid for emptying the drillings reception space (,) preceding the filter (,), in which, for the simple cleaning of the filter (,), the lid (,) is connected with a vibrating mechanism for the filter (,).

Device having a filter, a filter vibrating means and a scraper used for sucking off drillings

In a loading device with a loading platform for receiving mined material, wherein the loading platform is swept over by loading arms and the material is conveyed onto a conveying device connected to the loading platform, the loading arms are designed as arms of a rotatably mounted loading star-wheel, and a plurality of loading star-wheels are arranged over the width of the loading platform.

Loading device for mining

A drive arrangement for shearing drums. Final gear reduction stages are arranged inside the shearing drum (5) and at least one reduction stage is designed as a planetary gear mechanism. The first gear reduction stage arranged inside the shearing drum (5) has intermediate gear wheels (21) rotatably fixed to a rigid intermediate gear wheel carrier (22) connected to a supporting arm (3) of the shearing drum (5). The intermediate gear wheels (21) are driven by a sun gear wheel (20) and interact with an outer internal gear wheel (25). Internal gear wheel (25) is connected in a rotationally fixed manner to a second sun gear wheel (26) of a downstream planetary gear mechanism, the output side (30) of which is connected to the shearing drum.

Drive arrangement for shearing drums

A shearing machine with shearing heads or drums rotatably mounted on a luffable shearing arm and a loading ramp or a conveyor running in the direction of the heading face for receiving and conveying away the sheared material. The loading ramp or the conveyor is supported displaceably in the longitudinal direction of the shearing machine on the machine frame and the horizontal luffing axis of the shearing arm runs transversely to the longitudinal direction of the machine and is mounted adjustably relative to the machine frame in the longitudinal direction of the machine. The adjustment movement of the horizontal luffing axis of the shearing arm is coupled to the adjusting movement of the loading ramp or of the conveyor. The shearing arm is mounted on a bearing bracket which is connected to a carriage. The carriage is displaceable on guides running in the longitudinal direction of the machine and the bearing bracket is connected to a driver which is formed by a slot guide. After a predetermined displacement distance of the bearing bracket in the longitudinal direction of the machine, the bearing braket interacts with the conveyor.

Shearing machine with movable shearing drum and conveyor

A shearing machine with roof-bolt drilling and setting devices which are jointedly connected to the shearing machine and can be hydraulically braced between roof and floor of the roadway. A multiplicity of roof-bolt drilling and setting devices are connected to a common supporting frame, the supporting frame being connected to the shearing machine via guide bars running in the longitudinal direction of the machine.

Shearing machine with roof-bolt drilling and setting devices

In a chain conveyor (6) for loading devices and/or conveying devices, in which engaging pieces (10) are swivelably linked to a chain (9), noting that the engaging pieces (10) are linked to the chains approximately at their longitudinal center and the chain (9) moves along a path closed in itself, the engaging pieces (10) are at their arms (14) facing the inner side of the orbital path of the chain (9) articulatedly linked to a respective guide rod (15), said guide rod (15) being articulatedly linked with the chain (9) for lagging in direction of movement of the chains. In this case, the chain (9) is preferably guided within a recess or groove (18) of the sliding surface of the engaging pieces (10), said recess or groove corresponding to the orbital path.

Chain conveyor for loading devices and/or conveying devices

A device for guying a drift advancing machine within a drift has props which can be guyed between the drift roof and the drift floor and having articulated caps, connected to it. There are arranged at both sides of the longitudinal center plane of the machine at least one hydraulic cylinder-piston-aggregate between a supporting block fixed on the machine frame and the drift floor as well as between the supporting block and the drift roof in a guyable manner. The cylinder-piston-aggregates are articulatedly connected to floor supporting plates adapted to be pressed against the floor and to roof caps and are articulatedly connected to the supporting block, and the floor supporting plates and the roof caps are connected with the machine frame (1) via thrust supports.

Device for guying a drift advancing machine within a drift

In a rotationally driven cutting roll for a machine for cutting ore or other rock material from a drift face, the roll is axially divided into a plurality of roll portions arranged end to end in juxtaposition along the drift face. The roll portions are rotationally driven by a continuous, one-piece straight driving shaft. Lateral ones of the roll portions are supported coaxially with the shaft, but the medial roll portion or portions is or are supported in respective inclined positions relative to the longitudinal axis of the driving shaft. As a result, gearing ribs on the drift face are minimized in width.

Growing community of inventors

Grosslobming, Austria

Erich Brandl