| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to mining and is intended for gearbox cooling in the revolving gear of the cutter for breast mining. The revolving gear contains a set of separate transmission gears and cooling system. The transmission gears are arranged in row in elongated casing. The cooling system contains heating medium injection system in each of the transmission gears. Each injection system has longitudinal hole made in shaft of the transmission gear, and pipe for the heating medium injection installed in this hole. The pipe diameter is below the diameter of the longitudinal hole. The heating medium supply line is connected to the heating medium injection pipe. To the longitudinal hole and adjacent to one its end the hole is connected for the heating medium outlet, so the heating medium exiting from end of the specified pipe flows back along it, and then exits shaft of the transmission gear ensuring heat removal from the individual transmission gear.EFFECT: improved design.22 cl, 5 dwg |
