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GearBox Group 4k• Carlo Sinay• Andrew Anthony• David Jaffit• Niq Nazrin
Design Time Line
Design Priorities
Preliminary Calculations
Gear Configurations
Mounting Methods
Analysis and Selection
GearBoxGroup4K
Design PrioritiesPerformance Mark Equation:
Priority list:1. Gearbox Dimension Size2. Speed at which Gearbox pulls weight3. Power used by gearbox
(Every controllable variable in equation was prioritised by their index)
GearBoxGroup4K
Calculated coefficient of static friction = ~0.3
Calculated projected required output force = ~92N
Estimated gear ratio (simple) based on motor specs and projected required output torque = 1:34
Design Consideration – Friction and Torque
GearBoxGroup4K
Design Consideration - Limitations- Acrylic strength
- Laser cutting effects on acrylic
- Limitations of laser cutting
GearBoxGroup4K
GearBoxGroup4K
Design Consideration - Limitations
Design – Gear ConfigurationsFriction elements
Volume of gearboxes
Spacing and layout of gears
Pulley Systems
GearBoxGroup4K
GearBoxGroup4K
Design – Gear ConfigurationsSpur20gear.jpgSpur20gear.jpgSpur20gear.jpg45D572B29E6BEA7CC3FFA840AC1BD8BC.jpg
Design – Mounting Method
Gearbox
External Mounting
PlateIntegrated Mounting
Holes GearBoxGroup4K
Design – Mounting MethodExternal Plate Mounting:- Extra space for gears- Stress focused on plate
Integrated Mounting:- Reduces wasted space in gearbox- Stress is focused in gearbox
GearBoxGroup4K
Design – Conclusion
GearBoxGroup4K
Referenceshttp://www.globalspec.com/http://forums.Autodesk.com/User- Nathaniel.Parrhttp://www.hercus.com.au/
GearBoxGroup4K