MINE HOISTING MACHINE Russian patent published in 2020 - IPC B66B15/00 B66D1/14 F16D11/04 

FIELD: machine building.

SUBSTANCE: invention relates to equipment of main mine lifting, namely to two-drum lifting machines with shift mechanism for detachable connection of adjustable drum and main shaft, and can be used for lifting ore and rock by two skips from several horizons. Shaft lifting machine includes main shaft installed in bearing supports, disk brake devices, two cylindrical drums intended for winding of lifting ropes, one of which is rigidly connected with main shaft, and other is rearrangement equipped with shift mechanism. Toothed mechanism of rearrangement includes split gear wheel (7) with external arrangement of teeth, installed on main shaft by means of split sleeve of sliding, and on which outer side wall of adjustable drum is fixed, split gear wheel (10) with external arrangement of teeth, rigidly fixed by bolts on annular projection of main shaft from outer side of gear wheel (7), split gear wheel (12) with internal arrangement of teeth, which is in constant engagement with gear wheel (10) with possibility of movement along axis of main shaft and engagement with gear wheel (7) under action of force of at least four permanently compressed springs (14). Split gear wheel (12) moves along axis of main shaft with disengagement with gear wheel (7) under action of force of two hydraulic cylinders (23) of one-way action transmitted by means of split sliding ring (16), installed with radial clearance in annular recess of gear wheel (12) on its outer side.

EFFECT: invention improves reliability and manufacturability of gear mechanism of rearrangement.

4 cl, 12 dwg