THREE-LINK VARIABLE-DWELL CAM MECHANISM

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Cam 1 rotates about fixed axis A and has a contour with a lobe along a concentric circular arc of radius r. Follower 2 reciprocates in fixed guide B and carries rollers 3 and 4 which can be adjusted along and clamped in various positions in concentric circular guide a-a. Periods of motion and rest of follower 2 are varied by changing the positions of rollers 3 and 4. To increase the dwell at the upper position of the follower, the distance between the rollers should be increased. The instant dwell begins with reference to cam 1 is varied by adjust ing roller 4 along guide a-a.
$3006$SmC,3L$

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Documents: Cam and friction mechanisms  [Streambook]
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