1. Basic Mechanical Functions
Linking Function
Guiding Function

2. Complex Mechanical Functions
Motion Transmission
Motion Transformation

3. DEFINITIONS:
System: A set of components that share the same function.
Motion transmission: Transmitting motion from one part to another without modifying the nature of the motion.
Motion transformation: Relaying motion from one part to another while at the same time, MODIFYING (transforming) the nature of the motion.

4. (At least) 1 Driven Component (Possibly) 1 or more Intermediates
All systems contain
A driver
(At least) 1 Driven Component
(Possibly) 1 or more Intermediates
Refer to page 390 in textbook

5. Components
DRIVER: Recieves the power required to set the system in motion.
DRIVEN: Recieves the motion of the driver and transmits it to another part.
INTERMEDIATE: Located between the driver and the driven. May or may not be present in a system.

6. Motion Transmission 5 types:
Transmitting motion from one part to another without modifying the nature of the motion.
The driver and the driven perform the same motion
5 types:
Friction gear system
Simple gear system
Pulley & belt system
Chain & sprocket system
Worm & worm gear system

7. Friction Gear System
Transmits rotational motion between two or more nearby parts.
COMPONENTS & OPERATION:
Has two or more wheels without teeth that roll together.

8. Simple Gear System http://www.technologystudent.com/gears1/gears1.htm
Transmits rotational motion between two or more nearby parts.
COMPONENTS & OPERATION:
Has two or more gears that come in contact and mesh together.

10. Pulley & Belt
Transmits rotational motion between parts that are relatively far apart from each other.
COMPONENTS & OPERATION:
A belt slide is on two or more wheels (pulleys). The pulleys must have a smooth surface for the belt not to break.

11. Chain & Sprocket
Transmits rotational motion between parts that are relatively far apart from each other.
COMPONENTS & OPERATION:
Has two (or more) sprockets (gear wheels) that do not touch, plus a chain.

12. Worm & Worm Gear http://www.technologystudent.com/gears1/worm1.htm
Transmits rotational motion to non-parallel parts that are close to one another.
Worm
Worm
gear
COMPONENTS & OPERATION:
Has a worm and a worm gear; the teeth of each component slide into each other.

13. Motion Transformation

14. Motion Transformation:
-Transforms the nature of the motion as it is relayed from one part to another.
The driver and driven component do NOT have the same motion.

15. Motion Transformation: We’ll be looking at 4 system types:
Slider-crank
Rack & pinion
Cam followers
Screw gear

16. Slider-Crank FUNCTION:
Transforms a rotational motion intro translational OR translational into rotational.
COMPONENTS:
Has a connecting rod and a crank. A crank is a part to which rotational motion can be applied.
The rod is the INTERMEDIATE.

17. Rack & Pinion FUNCTION: Rotational  Translation (or vice versa)
COMPONENTS & OPERATION:
Has a rack (rod with teeth) and a pinion (gear wheel). The teeth of the components mesh.

18. CAM & Follower FUNCTION: Rotational motion Translation motion.
COMPONENTS & OPERATION:
Has a cam (irregular shaped disc) and a follower (the rod). When the cam turns, the follower makes back-and-forth movement.

19. Screw Gear
FUNCTION:
Rotational motion Translation motion. (or vice versa)
COMPONENTS & OPERATION:
At least one screw and one nut.