Abstract: A cartridge valve is arranged to control a flow of a fluid within a fluid supply network of a cutting machine such as mining or drilling apparatus. The valve includes a main body that defines an internal chamber to accommodate a reciprocating piston and plunger operative to open and close the valve by axial sliding movement. An intermediate region of the chamber provides a fluid tight partition between a working fluid network and a supply fluid network.

Abstract: A cartridge valve is arranged to control a flow of a fluid within a fluid supply network of a cutting machine such as mining or drilling apparatus. The valve includes a main body that defines an internal chamber to accommodate a reciprocating piston and plunger operative to open and close the valve by axial sliding movement. An intermediate region of the chamber provides a fluid tight partition between a working fluid network and a supply fluid network.

Abstract: In a heading machine (1) including a track chain running gear, a cutter arm (3) pivotally fixed to a machine frame and comprising rotatably drivable cutting tools (4), a fresh-air supply for supplying fresh air to the working face, and an exhaust means for evacuating exhaust air and dust from the working face, the heading machine (1) further comprises at least one anchor drilling and setting device (5) disposed behind the cutting tools (4) and at least one working platform (11) disposed at least partially laterally outside the anchor drilling and setting device (5), wherein at least one air duct of the fresh-air supply and/or the exhaust means is led through below the at least one working platform (11) and/or laterally led around the working platform (11).

Abstract: In a track chain running gear (2) for mining machines (1), in particular heading machines, including at least one running gear case (5) and a track chain running around the running gear case (5) and formed by a multiplicity of chain links (3) articulately connected to one another, the running gear case (5), on its side facing the roadway, carries sliding plates (6) that form contact surfaces for the chain links (3) running along them, wherein the chain links (3), on their sides facing the sliding plates (6), carry wear plates (7) whose projecting surfaces cooperate with the contact surfaces of the sliding plates (6). In a chain link (3) for a track chain running gear (2), the chain link (3), on its side facing the sliding plates (6) of the running gear case (5), carries wear plates (7) whose projecting surfaces cooperate with the contact surfaces of the sliding plates (6).

Abstract: In a heading machine (1) including a-machine frame (2) equipped with a travelling mechanism (3), a cutter boom (7) mounted so as to be pivotable in the height direction and carrying cutting tools (9), a preferably liftable and lowerable haulage device (11), and a supporting device for bracing the heading machine (1) within the road, wherein the supporting device includes a vertical support equipped with props that are braceable between the roof and the floor and to which support plates (14) are articulately joined on the roof and floor sides, as well as a longitudinal support connecting the roof-side end of the vertical support with the machine frame (2) and carrying a dust exhaust system, the dust exhaust system is held in a frame (23) that is mounted on the longitudinal support so as to be pivotable about a substantially horizontal axis (24).

Abstract: 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).

Abstract: A cooling arrangement with a housing for receiving electronic printed circuit boards or plug-in modules, and with an air-conditioning device which is connected via a coolant-conducting feed line and a return-flow line with at least one electronic component, which is to be cooled, on the respective printed circuit board or plug-in module. The feed line is coupled with at least one component feed line assigned to the electronic component. The return-flow line is coupled with at least one component return-flow line assigned to the electronic component. The component feed line and the component return-flow line have coupling elements attached at ends of the respective printed circuit board or plug-in module which, together with the counter coupling elements of the feed line and the return-flow line attached at the end of the housing, form a coupling connection, which is releasable.

Abstract: A head or bottom element of a component support, having guide rails arranged side-by-side and aligned in an insertion direction for receiving a printed circuit board of a plug-in module, wherein the guide rails are formed by one-piece guide elements of the head or bottom element. The guide elements can be formed of two rows of several guide strips per guide rail, each of which extends in the insertion direction, which strips are punched out of a plate-shaped head or bottom element and are projectingly beveled in the direction toward an underside of the head element or a top of the bottom element. A distance of the guide strips of the guide rails is matched to the thickness of the printed circuit boards of the plug-in modules. The head or bottom element forms guide paths for the printed circuit boards of the plug-in modules between the rows of guide strips of the guide rails.

Abstract: A device for detachable electrical connection of a contact pin to a sheet metal component. According to this invention, a durable conducting connection of the contact pin to the sheet metal component may be achieved, whereby the sheet metal component has at least one perforation, in which a sleeve for a contact element is housed in an electrically-conducting manner, enclosing a spring element. The contact pin is housed in the sleeve by the spring element in the assembled position and the contact pin and the sleeve are electrically connected to the sheet metal component by the spring element. This arrangement has a particularly high current-carrying capacity as a result of the spring arrangement housed in the sleeve.

Abstract: A cooling arrangement with a housing for receiving electronic printed circuit boards or plug-in modules, and with an air-conditioning device which is connected via a coolant-conducting feed line and a return-flow line with at least one electronic component, to be cooled, on the respective printed circuit board or the plug-in module. The feed line is coupled with at least one component feed line assigned to the electronic component. The return-flow line is coupled with at least one component return-flow line assigned to the electronic component. The printed circuit board or the plug-in module has an area for fitting electronic components and a coupling area for coupling the feed line with the component feed line and for coupling the return-flow line with the component return-flow line.

Abstract: A device for detachable electrical connection of a contact pin to a sheet metal component. According to this invention, a durable conducting connection of the contact pin to the sheet metal component may be achieved, whereby the sheet metal component has at least one perforation, in which a sleeve for a contact element is housed in an electrically-conducting manner, enclosing a spring element. The contact pin is housed in the sleeve by the spring element in the assembled position and the contact pin and the sleeve are electrically connected to the sheet metal component by the spring element. This arrangement has a particularly high current-carrying capacity as a result of the spring arrangement housed in the sleeve.

Abstract: 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).

Abstract: A head or bottom element of a component support, having guide rails which are arranged side-by-side and aligned in an insertion direction for receiving a printed circuit board of a plug-in module. The guide rails are constituted or formed by one-piece guide elements of the head or bottom element. The head or bottom element includes an electrically conductive material at least over portions of its area. If the head or bottom element has a surface coating of electrically non-conductive material, at least partially in the area of the guide rail, it is then possible to achieve a dependable insulation of the printed circuit board from the head or bottom element in a simple and cost-effective manner.

Abstract: The joint-pin modular unit for articulately connecting a fork-type or stirrup device (1) with a connecting eye embracing a joint pin (8) of the fork-type or stirrup device (1), includes at least one seal (9) provided between the connecting eye and the pin, wherein the joint pin (8) is rotationally guided in bearing bushes (6, 7) of the fork-type or stirrup device (1) and annular seals (9) 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 (8) are closed by covers (10, 11) tightly covering the bearing bushes (6, 7), wherein the surface of the pin is surrounded by a lubricant film and at least one substantially axial bore (13), and a plurality of radial bores (14, 15) leading to the surface of the pin, are provided for the supply of lubricant.

Abstract: A head or bottom element of a component support, having guide rails arranged side-by-side and aligned in an insertion direction for receiving a printed circuit board of a plug-in module, wherein the guide rails are formed by one-piece guide elements of the head or bottom element. The guide elements can be formed of two rows of several guide strips per guide rail, each of which extends in the insertion direction, which strips are punched out of a plate-shaped head or bottom element and are projectingly beveled in the direction toward an underside of the head element or a top of the bottom element. A distance of the guide strips of the guide rails is matched to the thickness of the printed circuit boards of the plug-in modules. The head or bottom element forms guide paths for the printed circuit boards of the plug-in modules between the rows of guide strips of the guide rails.

Abstract: A cooling arrangement with a housing for receiving electronic printed circuit boards or plug-in modules, and with an air-conditioning device which is connected via a coolant-conducting feed line and a return-flow line with at least one electronic component, to be cooled, on the respective printed circuit board or the plug-in module. The feed line is coupled with at least one component feed line assigned to the electronic component. The return-flow line is coupled with at least one component return-flow line assigned to the electronic component. The printed circuit board or the plug-in module has an area for fitting electronic components and a coupling area for coupling the feed line with the component feed line and for coupling the return-flow line with the component return-flow line.

Abstract: A cooling arrangement with a housing for receiving electronic printed circuit boards or plug-in modules, and with an air-conditioning device which is connected via a coolant-conducting feed line and a return-flow line with at least one electronic component, which is to be cooled, on the respective printed circuit board or plug-in module. The feed line is coupled with at least one component feed line assigned to the electronic component. The return-flow line is coupled with at least one component return-flow line assigned to the electronic component. The component feed line and the component return-flow line have coupling elements attached at ends of the respective printed circuit board or plug-in module which, together with the counter coupling elements of the feed line and the return-flow line attached at the end of the housing, form a coupling connection, which is releasable.

Abstract: In a method for introducing and blowing rock dust to bind carbon dust during advance working or coal mining using an advance working or mining machine, respectively, the cutting tools are retracted relative to a displaceable machine frame after having cut an outbreak or excavation. During the displacement of the machine frame into a new outbreak or excavation position, rock dust is blown onto the roof and lateral-wall surfaces laid bare by the cutting tools, through nozzles arranged on the machine frame by the aid of pressure medium such as compressed air. The advance working or mining machine used to carry out this method includes a displaceable machine frame and a carriage movably mounted on the machine frame and carrying a pivotable cantilever arm on which cutting heads or rolls are rotationally mounted, and a loading device intended to receive cut or broken material.

Abstract: 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 (16) for excavation of material on the mine face is networked with a controller (15) for actuation of the anchor drilling and setting device (10) via radio, electrical or optical lines (17).

Abstract: The joint-pin modular unit for articulately connecting a fork-type or stirrup device (1) with a connecting eye embracing a joint pin (8) of the fork-type or stirrup device (1), includes at least one seal (9) provided between the connecting eye and the pin, wherein the joint pin (8) is rotationally guided in bearing bushes (6, 7) of the fork-type or stirrup device (1) and annular seals (9) 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 (8) are closed by covers (10, 11) tightly covering the bearing bushes (6, 7), wherein the surface of the pin is surrounded by a lubricant film and at least one substantially axial bore (13), and a plurality of radial bores (14, 15) leading to the surface of the pin, are provided for the supply of lubricant.