FIELD: machine building.
SUBSTANCE: invention relates to a dry vacuum pump. Pump comprises drive device (1), including drive shaft (3), at the end of which there is at least one drive wheel (4) intended for driving, at least one belt (5), at least two parallel rotors (7, 8), each of which includes a rotor shaft equipped with rotor element (11, 12). Shaft is driven by belt (5) and is equipped with gear wheel (13, 14) on one of the axial ends. Wheel (4) and belt (5) are smooth. Each shaft includes at least one smooth section (16, 17) made with possibility of interaction with belt (5). Gear wheels (13, 14) of shafts are made with possibility of engagement with each other.
EFFECT: invention is aimed at creation of a dry vacuum pump, the drive device of which does not require lubrication and provides synchronization of rotor shafts.
16 cl, 8 dwg
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