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Forging new generations of engineers

Forging new generations of engineers. CAMS, Eccentrics, and Ratchets. CAMS ARE MECHANICAL DEVICES THAT CHANGE ROTARY MOTION TO LINEAR MOTION. LEVER LINEAR MOTION. CAM ROTARY MOTION. CAM Followers and Linkages Transfer the Linear Motion of the CAM Lobe to the place where it is used. Toe.

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Forging new generations of engineers

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  1. Forging new generations of engineers

  2. CAMS, Eccentrics, and Ratchets

  3. CAMS ARE MECHANICAL DEVICES THAT CHANGE ROTARY MOTION TO LINEAR MOTION LEVER LINEAR MOTION CAM ROTARY MOTION

  4. CAM Followers and Linkages Transfer the Linear Motion of the CAM Lobe to the place where it is used

  5. Toe CAM Lobe Parts Flank Ramp Base Circle Heel

  6. CAM Lobe Lift

  7. CAM Displacement Graph AS ECCENTRIC CAM ROTATES ONE REVOLUTION OR 360 DEGREES THE MOVEMENT OF THE FOLLOWER IS SHOWN BY THE LINE ON THE GRAPH. AT 180 DEGREES THE FOLLOWER IS AT ITS MAXIMUN HEIGHT.

  8. Basic CAM Shapes Circle Heart Acceleration Pear

  9. Flat Plate CAM With Roller Follower

  10. Groove Box and Grooved Flat Plate Cam Groove Box CAM Grooved Flat Plate CAM

  11. CYNDRICAL CAM and FACE CAM • Both provide a rocking motion

  12. Peripheral CAMS • Peripheral cams are the most widely used form of an eccentric cam • In the peripheral cam, a follower rides on the outside edge of the cam • The high spot on the cam is called the lobe • The low spot is called the dwell • Cams can also move the follower at different levels

  13. Eccentric and Strap • The eccentric is inside a device called an eccentric strap • The eccentric is used where heavy loads are moved • The strap is connected to a link or rod which in turn is fastened to a pivot on an object which moves linearly

  14. Cloverleaf and Swash plate CAM • Cam Variations Cloverleaf • drives the follower bar in both directions Swash plate • provides rocking motion

  15. Different Style of a Swash Plate CAM

  16. Types of CAM Followers POINT SLIDING ROLLER ANGLE

  17. Using CAMS 3 Port pneumatic valve is opened and closed Rotating CAM Controls the operation of a car distributor

  18. Using CAMS In Gas Engines

  19. Engine CAMS Small Engine CAM Car Engine Cams

  20. Eccentric CAMS Concentric Circle Eccentric Circle

  21. Fuel Pump Design Using An Eccentric CAM

  22. Connecting Rods • Sometimes called coupling rods these are used to transfer energy from one moving part to another, without using gears or axles • Used to synchronize the movement of parts, to convert rotary motion to oscillating movement

  23. Ratchet Wheel AndPawl

  24. Types Of Ratchets and Pawls

  25. Ratchet Wheel and Pawl Used To Arrest Motion

  26. Fishing Reel Uses a Ratchet Wheel and Pawl

  27. Hand Crank Winch Using a Ratchet and Pawl

  28. Come Along Uses A Ratchet Wheel and Pawl

  29. Answer The Following • What is a CAM? • What Does a CAM Do? • Name 5 Different Types Of CAMs. • What is a Follower? • Name 4 Types of Followers. • What is a Ratchet? • What is a Pawl? • What is a Ratchet and Pawl used for? • What is an Eccentric?

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