| 摘要 |
<p>A power roller for driving conveyor belts, characterised by comprising a drum (1,11) which internally houses: a ring gear (2,12) rigid with the surface of said drum; an electric motor (3,13) the stator casing (4,14) of which is rigidly connected to a pin (5,15) for its support in a rotation-preventing manner by an external structure; a torque limiting coupling (19,,19) having its input side connected to the rotor (15,15) of said electric motor (3,13) and its output side connected to the input side (21,11) of a reduction gear system (9,19,22,13,23,12,24,14)), the output side of which is connected to the ring gear (2,12) of said drum (1,11); a box (11,11) housing said coupling (19,19) and rigid with the other pin (12,12) for its support in a rotation-preventing manner by the external structure; the assembly formed by the stator casing (4,14), the box (11.11) housing the coupling (19,19) and the casing (9,19) of the reduction gear system forming an assembly or rigid elements which creates structural continuity between said pins (5,15,12,12). <IMAGE></p> |
