Mechanisms

Question 1

Name and Draw the 3 types of cam

Answer 1

• Pear shaped cam
• Snail shaped cam
• Eccentric shaped cam

Question 2

Features of Worm Gear

Answer 2

Angle: Doesn’t change
Speed: Slow
Torque: High
Gear Ratio: 1:12 (1 for worm and then how many teeth the gear has)
Flow Of Power: Rotary to Rotary
Direction Of Travel: 1 Direction

Examples of use: Carjack for safety as it moves in one direction so the car won’t move back down.

Question 3

Features of Bevel Gear

Answer 3

Angle: 90
Speed: Depends on the speed you rotate it
Torque: Low
Gear Ratio: 1:1
Flow Of Power: Rotary to Rotary
Direction Of Travel: Forwards and Backwards

Examples Of Use: Drive shaft system of a car