摘要:
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.
摘要:
In a cutting or hewing roll there is, for increasing the cutting width, arranged at least one lateral front surface of the roll a tool carrier being swivellable relative to the axis of the cutting or hewing roll and receiving hewing or cutting tools. For the purpose of swivelling the swivellable tool carrier there is preferably provided a cylinder-piston-aggregate arranged within the interior of the roll and extending essentially in parallel relation to the axis of rotation of the roll.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A movable cutting machine is subdivided into a front portion (1) and a rear portion (2) of the cutting machine, which portions are swingable around an approximately vertical pivotal axis (10) and are secured against a relative displacement in direction of this pivotal axis (10) by means of two joints (11, 12). The front portion (1) of the cutting machine has a caterpillar chassis (3) and carries a swivelling means (5) comprising as the cutting means a cutting arm (6) and two cutting heads (7). The rear portion (2) of the cutting machine has, as a support means against ground, equally a caterpillar chassis (4) and carries auxiliary equipment and/or a section of a conveying trough (13) equipped with a chain conveyer.
摘要:
In a cutting machine (1) with cutting heads or rollers (7) rotationally mounted on a pivotable cutting arm (6), including a loading ramp or a conveyor (9) extending in the direction to the mine face for receiving and removing the cut material, wherein the cutting arm (6) is mounted on a carriage (4) displaceable on guides extending in the longitudinal direction of the machine, the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine and engaging in tubular guides (13) of the machine frame (3) carrying a chassis (2).
摘要:
In an advance working or mining machine including a traveling mechanism, excavation tools movable over the mine face as well as roof bolt drilling and setting apparatus having associated operating platforms for the operation of the roof bolt drilling and setting apparatus, at least a part of laterally cantilevering platforms is each arranged to be pivotable and/or displaceable transversely to the longitudinal axis of the machine.