| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to reversible chain transmissions, and more specifically to devices for tightening with automatic maintenance of preset tension force and uniform distribution in branches of transmission. Tensioning device consists of two swinging levers (1) and (2), on one end on axes (3) and (4) tensioning sprockets (5) and (6) are installed. Other ends of levers are articulated by tooth engagement (10). These ends of levers are arranged on axes (11) and (12) on swinging section (13), which by axis (14) is connected with support (15). Tensioning sprockets are in contact with branches of chain transmission (22) and (23).EFFECT: automatic balancing of forces acting on branch of reverse chain transmission.1 cl, 7 dwg |
