Driving box for a mining machine.

p0001The invention relates to a cab for mining vehicles, especially for coal cutting machines, with a roof and optionally sidewalls. When working untertag considerable ambient temperatures may occur and resulting in the cabin room temperatures, which up to 60^O and may be about to affect the driver concentration and thus constitute a safety risk. The idea of ​​working with intraday mining machinery, such as Teilschnittschrämmaschinen to use air conditioners, fails, inter alia, that mountain official regulations, the use of commercial air conditioners due to the lack of fire-damp protection and prohibit the insufficient compressive strength. So no flame-resistant designs are, for example, for the fans in air-conditioning units have been developed and it is also the use of materials such as aluminum, therefore inadmissible, since cascading chunks of aluminum to throw out sparks. Moreover, also in accordance with adapted air conditioning units with regard to the high mechanical stresses would be susceptible and hardly grown in the rough Grubenhetrieb'den shocks.

p0002The invention now aims to provide a particularly simple and reliable training for a cooling of the cab for Berabaufahrzeuge with which under minimal effort increases safety in mining operations. To achieve this object, the invention consists essentially in the fact that at least portions of the roof and / or the side walls with cooling elements, such as cold storage, are connectable. The formation of the roof and / or the side walls with means for setting of cooling elements, such as cold storage, a mechanically extremely stable and efficient construction is provided, which brings the desired cooling effect. Preferably hiebei the roof and / or the side walls are formed at least partially double-walled and have at least one side to open and reveal recesses for receiving cooling elements. Such a configuration offers the particularly simple possibility of accommodating the cooling elements in addition the advantage that the thermal insulation can be improved by the double walls. Hiebei is preferably secured at least the outer skin of the roof or of the walls against heat loss.

p0003Within the double-walled region of the roof or walls of open or openable tubes may be arranged at least at one end. These tubes can, if they are open at both ends, to be connected as a cooling coil and flows through the water required for the deposition of dust. Open on one side tubes can be filled from the openable side with ice or other coolants, in which a regeneration of the refrigerant is required at intervals. The cooling effect can be predetermined by the number of tubes in a simple manner and with the use of individual pieces of pipe with a bottom and a lid, which, moreover, welded to improve the cold output or can have molded-on fins, the tubes may themselves act as cooling elements, which, with ice can be filled dry ice or liquid refrigerants. The arrangement of fixed to the jacket fins serves hiebei addition to improving the heat dissipation as a spacer with respect to the inner and the outer skin of the roof or the sidewalls and allows a free cross section for the blowing air which cooled in contact with the cooling elements will ensure. Preferably hiebei, the configuration is made such that the double-walled region of the roof and / or the side walls of a preferably by a hydraulic motor driven blower, and in that provided an inwardly acres opening for the guided from the blower over the heat sink air at least in the roof at least is. Such a fan must be provided with regard to the administration regulations with a schlagwetteraeschützten drive and such a drive can be formed of such a blower in a particularly simple manner by a hydraulic motor.

p0004Unless arranged in the roof or side walls of tubes are not directly itself is formed as cooling elements, it may be advantageous to use such tubes than for receiving devices to be inserted in these tubes cooling elements. In a particularly simple manner hiebei the cooling elements on the side openable openings in the double-walled roof and / or the side walls can be inserted.

p0005Preferably hiebei the cooling elements are constructed as lockable in pipes cylindrical elements.

p0006A significant advantage of the design according to the invention over the use of air conditioners is to be seen among others in addition to the simple design is that no additional heat output is delivered to the environment as; can not be avoided when air conditioners. The arrangement of cooling elements in a housing, which serves as a roof or rear wall of the cab, hiebei brings the advantage that the coolest zone is in driver's head level, thus with minimum effort the largest effect.

p0007The invention is explained in more detail with reference to an embodiment shown in the drawing.

p0008In the drawings Fig. 1 is a schematic side view of the cabin, partly in section, and Fig. 2 is a cooling element.

p0009In the drawing, the suspension of a mining machine is schematically indicated by the caterpillars. 1 Above the chassis is the chassis a cab 2, which can be entered through a door. 3 Inside the cab 2 are necessary for controlling the machine actuators and a schematic with 4, indicated monitoring panel for the main machine functions. The view from the cabin is possible through a window 5 and lateral in the door 3 inset window. 6 The roof parts and the rear wall are formed double-walled and have an outer wall 7 and an inner wall 8. The thus formed cavity 9 inside of the roof and the back wall is open to one side of the machine and allows the insertion of cooling elements 10 and the arrangement of such cooling elements. In the embodiment according to FIG. 1 therefor tubes 11 are provided, which are held at a distance from the Tnnenwand 8 and the outer wall 7. To the rear panel 'of a hydraulic motor driven fan 12 is connected, is conveyed by means of which filtered air through the space 9 between the inside wall 8 and the outer wall 7 of the roof or the rear wall. The air sweeps over hiebei the cooling elements 10 and can exit again via opening into the interior of the cabin outlet openings 13 and the fourteenth The cool air thus emerges in the vicinity of the driver's head.

p0010A cooling element as it is one used for the cabin of Fig., Is shown in Fig. 2 enlarged.

p0011The cooling element 10 is shown in FIG. 2 of a tube 15, which on one side has a floor 16. The other end face of the tube 15 can be opened and includes a cover attachable 17th After removing the cap 17 can be in the tube ice, bring dry ice or other refrigerant. The lid can be tightly connected, for example by screwing to the tube.

p0012The jacket of the tube 15 has ribs 18, which improve the cold exchange between the cooling member 10 and conveyed by the fan 12 air.

p0013The outlet openings 13 and 14 in the interior of the car 2 can be formed like a nozzle in a conventional manner and orientable to direct the cold air flow suitable.