| 摘要 |
The present invention relates to an angular speed reduction device, including a first circular component passing through the center of a stationary plate and turning freely relative to said plate at an angular speed W1, characterized in that said first component is a gearing with a second component comprising at least one planetary gear rigidly connected to the stationary plate via an end piece integral with said planetary gear and serving as an axis of rotation, each planetary gear being freely rotatable relative to the stationary plate and driven by the first component, the planetary gears being in contact with the interior of a first ring gear driven by the second component at the angular speed W2, said ring gear and said first component being concentric, the first ring gear being rigidly connected to a second ring gear so that the first ring gear drives said second ring gear at the same angular speed W2, a third component being engaged with the first component and the internal portion of said second ring gear, the center of the third component being driven by the first component and the second ring gear at the angular speed WO3 along a circular path having a predetermined intermediate radius between the radius of the first component and the internal radius of the second ring gear, the third component including at least one planetary gear mounted so as to be freely rotatable in an output plate via an end piece integral with the planetary gear and serving as the axis of rotation, each planetary gear being freely rotatable about the axis thereof, the third component driving the output plate at the angular speed W3, the output plate comprising in addition at least one end piece serving as an output axis, said axis and the first component being concentric, the parts of the device being inserted in a guide tube positioned in the flange or in the frame of an engine, the external diameter of said second ring gear and the diameter of the output plate of the device being equal and adapted to the diameter of the bore of the guide tube so that there is no mechanical play between the inner wall of the guide tube and the output plate, the third component and the second ring gear, the guide tube including, in addition, at the other end thereof an annular edge to accommodate a securing plate arranged opposite the output plate and fastened to the guide tube via at least one screw or pin, the fastening plate including an opening through which the end piece of the output plate serving as the output axis protrudes, said end piece being freely rotatable relative to the fastening plate. |
