PULLEY Russian patent published in 2004 - IPC

FIELD: mechanical engineering. SUBSTANCE: invention relates to drives of machines with flexible coupling and it can be used in drives operating at variable loads as link of automatic flat belt variable-speed drive. Proposed pulley is essentially one-sheet hyperboloid of rotation formed by carrying rods 5 whose ends are secured in bell supports 6 uniformly arranged on inner surface of flanges 1 and 3. Flanges 1 is rigidly fitted on driven shaft 2. Flange 3 forms two motion tie 4. Both flanges are coupled by extension spring 7. EFFECT: improved reliability pf pulley owing to provision of stable cooperation of drive under multimode operating conditions. 3 dwg