| 摘要 |
<p>A coupling device for mounting between a shaft (1) which at least periodically is supplied with a rotating motion from a rotary motor (7), which rotary motor (7) is provided with a housing (6), which housing is provided with a flange or overhanging circular edge (6') round the shaft (1), and an annular device (2) which is mounted on the outside of the coupling device and which is also freely rotatably mounted on the shaft (1) with one or more bearing devices (8), thus enabling the annular device (2) to rotate freely on the shaft (1) when the shaft (1) is not supplied with a rotating motion and which annular device (2) is supplied with a rotating motion via the coupling device when the shaft (1) is supplied with such a rotating motion from the rotary motor. Coupling devices are characterized in that the shaft (1) is substantially of a circular cylindrical shape with one or more flattened portions (5) along the shaft's (1) peripheral surface in the area of the shaft (1) inside the annular device (2), and that the inner surface of the annular device (2) is of a circular cylindrical shape, where in the area between each of the flattened portions (5) of the shaft's (1) peripheral surface and the inner circular cylindrical surface of the annular device (2) there is mounted a circular cylindrical roller (4).</p> |
