Transmissions & Gearboxes By Michael Leicht Mission Statement • This presentation will help teams understand what resources are available in order to help the build process along. • Disclaimer: This presentation is a tool of what gearboxes are available on the market. We do not endorse any of these companies in this presentation. Background Information • B.S. Mechanical Engineering From Daniel Webster College in 2011 (FIRST Scholarship) • Currently work as a Project Engineer at Enviro-Clear Co. INC. in High Bridge NJ • 10 Seasons FRC experience (Team 303, 42, 2342 & 1403) Retail Outlets • • • • Andy Mark INC. Innovation First: Vex Pro Series WestCoast Products & Design LLC BaneBots Drive Train Drive Train Basic • Drive train is a basic element of the robot that provides motion • Different styles of drive trains provide different benefits • A competitive robot starts with a well designed drive train • A drive train is made up of motor(s), transmission & wheels. Drive Trains • Single Speed Gearboxes • Multi-Speed gearboxes • Mecanum Drive. Andy Mark • AndyMark – ToughBox (+3 motor, & Nano) – CIMple Box AndyMark (Cont.) • Dual Speed Transmission – 1st Gen – Super Shifter – Sonic Shifter • Single Speed – Single Speed (Single & Double Reduction) • Dual Speed- Ball Shifter West Coast Products • Single Speed (2 CIM or 3 CIM) – West Coast Drive Option West Coast Products • Dual Speed- Dog Shifter – Option of Power Take Off (PTO) Gearboxes • Another important element of a FIRST robot is the scoring device. • Gearboxes reduces the speed and increases the torque which can be used to allow joints to rotate. AndyMark Gearboxes • Planetary Gearbox • Worm Gearbox • CIM-Sim BaneBots Gearbox • Planetary Gearboxes (775, 550 & 395 Motors) – 35 ft-lbf Torque Limit – Reductions Range (4:1 to 256:1) VexPro • VersaPlanetary (775, 550 & AM9015) – Reduction Range (3:1 to 100:1) Custom Gearboxes • Challenging but rewarding to design and build a gearbox. • Plan the gearbox out and every detail(bearings, hex shafts, keyed shafts, motors, gears, & bearing plates) Think & Plan • Features – Two speeds – Ability to change speeds – Robust VS. Light weight – Assembly time – Custom Parts VS. Off the Shelf – Concept VS. Reality FRC 1403 2013 Drive Train FRC 1403 2013 Shooter Gearbox Resources • • • • • www.cheifdelphi.com www.andymark.com www.vexpro.com www.Banebots.com www.wcproducts.net Questions?