FIELD: machine building.
SUBSTANCE: according to the first version connection of impeller with pinion shaft on front teeth includes front teeth of triangular profile that are engaged and performed on front ends of connected parts constricted by axial force. Front teeth have asymmetric triangular profile. The surface of working face of each tooth is parallel to pinion shaft rotation axis and perpendicular to vector Mr/Rav, where Mr - the moment of rotation, Rav - average radius.
EFFECT: increase of reliability of impeller connection to pinion shaft on front teeth.
6 cl, 8 dwg
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