| 摘要 |
<p>Power unit (1) for industrial machines (O) of the type comprising: one motor (2) and one pulley (3) splined to the shaft (4) of the motor (2), operatively connected to the components (5) of the industrial machine (0) via a driving belt (6); a supporting base (7) of the motor (2) arranged so that it rests on a bearing surface (8). The pulley (3) is of the expandable type and the supporting base (7) is associated with displacement means (10) suited to move it away from the bearing surface (8) during the stopping stage of the motor (2) in order to arrange the driving belt (6) on a reduced radius of the expandable pulley (3) when the motor (2) is at rest. Industrial machine (20) of the type comprising the power unit (1).</p> |
