1. Forging new generations of engineers

2. CAMS, Eccentrics, and Ratchets

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

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

5. CAM Lobe Parts Toe Flank Heel Ramp Base Circle

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 CircleHeart AccelerationPear

9. Flat Plate CAM With Roller Follower

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

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

12. 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 Peripheral CAMS

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

18. Using CAMS In Gas Engines

19. Small Engine CAM Car Engine Cams 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 And Pawl

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?