How Electric Screwdrivers Work

1
How Electric Screwdrivers Work

• Group 13
• Matt Gerard, Jonathan Tshannen,
• Marc Strong, Lamar Kent,
• Henry Victor, Bryan Venhorst,
• Justin Chiang, Josiah Wold

2
Three Engineering Aspects

• Mechanical
• How its designed to operate
• Electrical
• How power is used
• Industrial
• How to best suit the manufacturer/consumer

3
Mechanical Aspect

• Planetary Gear System
• 681 reduction ratio
• Chuck
• Motor turns 68 times for each chuck rotation
• Provides more torque relative to a weak motor

4
Electrical/Mechanical Aspect

• Electric Motor
• All about magnetism
• Magnets create movement
• Attracting/Repelling magnetic poles cause
  rotation of armature
• Electrical power converted into mechanical

5
Electrical Aspect

• Toggle Switch
• Has default neutral position to conserve power
• When switch is on, it creates a connection in the
  circuit, and current can flow from battery to
  motor
• Battery leads hooked up to the motor
• Reverse the leads to make it spin in opposite
  direction

6
Industrial Aspect

• Shell Materials
• Light weight for ease of use
• Plastic cost effective
• Steel durable ridged
• Shells designed to contain components
• Battery Materials
• Rechargeable alkaline battery
• Interchangeable

7
Conclusion

• Got tight corners?
• Right angle screwdriver
• Easy to use
• Creates ease in hard to reach corners
• A variety of bits for a variety of jobs
• Great Christmas gift!