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LEVER-GEAR PLANETARY SCOTCH-YOKE MECHANISM WITH DRIVEN LINK STROKE ADJUSTMENT |
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Premi per ingrandire
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Description
Carrier 1 rotates about fixed axis A and is connected by turning pair C to planet gear 4 which meshes with fixed internal gear 3. Crank 5 is rigidly attached to (or integral with) planet gear 4 and is connected by turning pair B to slider 6 which moves along slot a-a of link 2. Point B is located on the pitch circle of gear 4. Link 2 slides in fixed guides d-d whose axis is perpendicular to the axis of slot a-a. The pitch radius of gear 3 equals R=2r, where r is the pitch radius of planet gear 4. When carrier 1 rotates, any point lying on the pitch circle of planet gear 4 moves along a straight line passing through point A. By turning gear 3 with handle 7 and clamping it in the required position, point B of crank 5 can be adjusted to various positions with respect to axis AC of the carrier. This enables various strokes of the driven link 2 to be obtained in the range from zero to 2R. |
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