Linear Cam: Difference between revisions
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=====Description===== | |||
'''Linear cams''' move backwards and forwards in a '''[[Types of Motion|reciprocating motion]]''' and the shape of the surface of the cam determines how far, and in what manner, the ‘follower’ moves in response. | '''Linear cams''' move backwards and forwards in a '''[[Types of Motion|reciprocating motion]]''' and the shape of the surface of the cam determines how far, and in what manner, the ‘follower’ moves in response. | ||
=====Features and Applications===== | |||
Most cams are design using a '''[[Displacement Diagram]]''' - essentially a graph which plots the cam movement against the follower movement. A linear cam can be imagined to be the shape of the graph cut from solid plate and then passed backwards and forwards beneath the follower. | Most cams are design using a '''[[Displacement Diagram]]''' - essentially a graph which plots the cam movement against the follower movement. A linear cam can be imagined to be the shape of the graph cut from solid plate and then passed backwards and forwards beneath the follower. | ||
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=====Animation===== | |||
* Examples from '''[[2100 Animated Mechanical Mechanisms|Nguyen Duc Thang's]]''' YouTube Channel '''[[2100 Animated Mechanical Mechanisms]]''' | |||
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| [https://youtu.be/Bmp3OJiJQbw '''Linear Cam'''] - as the Cam Plate '''[[Types of Motion|Reciprocates]]''', the Follower Rises at one end of the stroke and Falls at the other with periods of Rest in between | |||
| {{#ev:youtube|Bmp3OJiJQbw|200x200|right||frame|loop=1&autoplay=0&playlist=Bmp3OJiJQbw}} | |||
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{{Cams & Cranks Buyers Guide}} | |||
[[Category:Secondary]] | [[Category:Secondary]] | ||
[[Category:Cams]] | [[Category:Cams]] |
Latest revision as of 13:46, 28 August 2016
Description
Linear cams move backwards and forwards in a reciprocating motion and the shape of the surface of the cam determines how far, and in what manner, the ‘follower’ moves in response.
Features and Applications
Most cams are design using a Displacement Diagram - essentially a graph which plots the cam movement against the follower movement. A linear cam can be imagined to be the shape of the graph cut from solid plate and then passed backwards and forwards beneath the follower.
Note: A simple wedge can be regarded as a basic form of linear cam - when driven into the end of a timber log, or used as an axe, the wedge transfers the vertical linear motion of the hammer into a horizontal force which spilts the wood.
Animation
- Examples from Nguyen Duc Thang's YouTube Channel 2100 Animated Mechanical Mechanisms
Linear Cam - as the Cam Plate Reciprocates, the Follower Rises at one end of the stroke and Falls at the other with periods of Rest in between |
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