FIELD: machine building.
SUBSTANCE: invention can be used in conrodless mechanisms of conversion of back-and-forth movement into rotary and vice versa of piston machines. Conrodless power mechanism of piston machine comprises compound crankshaft with counterweights on jaws of knees and paired cams fixed on journals of crankshaft. Support journal of crankshaft crank (4) of composite crankshaft is divided into two bearing cylindrical surfaces, which are retracted beyond section of their location and are connected to each other along axis of necks by means of high-strength pin (6) of smaller diameter. Ends of pin (6) in the body of each crank bend (4) are mechanically fixed so that in the assembled state axes of the left and right half-shafts (3) coincide with the central axis of the composite crankshaft.
EFFECT: technical result consists in reduction of diameter of paired cams conrodless mechanism.
3 cl, 1 dwg
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