An introduction to drill technology
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This document provides a brief history and overview of drills, including their parts and operation. It discusses how early humans used bow drills and hand drills before the invention of electric drills. The key parts of a drill are then described as the chuck, which holds drill bits, the transmission system that transfers power from the motor to the chuck, and optional hammers for hammer drills. Drills operate by having a small motor power a transmission that spins the chuck at high speeds to drill holes in materials.
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An introduction to drill technology
- 1. FOR DUMMIES An introduction to drills : Construction & Operation Course Docent By Construction dr. ir. Rino Versluys Wouter Robeyns
- 3. Transmission
- 4. Chuck
- 14. no transmission (chuck axis = motor axis)
Editor's Notes
- Bow drill: Spindle, fireboard, handhold, bowPump drill: Drill shaft, board with hole, fly wheel, cordBrace: High torque, low speed, bad precisionHand drill: Low torque, high speed, better precisionElectric drill:Cordless drill: Battery pack, lower speedsThat’show we end up with the currentdrills
- What is drilling actually?Making round holes in any object & material.
- Planetary: High power, small volume <-> High bearing loads
- Planetary: High power, small volume <-> High bearing loads
- Planetary: High power, small volume <-> High bearing loads