摘要:
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). In a method for producing chain links (3) of a track chain running gear (2) wear plates (7) are inserted into a casting die for the chain link (3), and the chain link (3) is subsequently produced by casting, wherein the wear plates (7) inserted in the casting die are cast around such that the wear plates (7) project beyond the surface of the chain link (3) after the casting procedure. (FIG. 5)
摘要:
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).
摘要:
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.
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 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. At least one nozzle for atomizing rock dust is arranged on the displaceable machine frame and at least one storage bin and a compressed-air source are arranged on the advance working or mining machine.
摘要:
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).
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:
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.
摘要:
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.
摘要:
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.