Gear Technology Manual
Module 2 - GEAR SYSTEM DESIGN
Now avalaible on CD-ROM
SYNOPSIS
This Module describes the functions of a gearbox as the link between driving and driven devices. It gives guidance on the specification and selection of the gearbox, and whether it should be a proprietary or custom-made design. Typical proprietary gearbox types are shown, with some price (1990) indications.
CONTENTS
Functions of gear drives
Transformation of torque and speed
Synchronisation of motions
Right angle drives
Special features
Features of gear systems
Notation
Transmission ratio i
Transmitted power P
Transmitted torque T
Mechanical arrangement
Referred inertias
Gear types
General
Spur gears
Helical gears
Bevel gears
Worm gears
Hypoid gears
Spiroid gears
Gearbox specification
General
Output speed and torque
Input speed and torque
Configuration
Shaft connections
Environmental conditions
Transmission error
Backlash
Vibration and noise
Other factors
Propriefary gears and gearboxes
The case for proprietary designs
Proprietary loose gears
Proprietary instrument gearboxes
Proprietary servo actuator gearboxes
Proprietary industrial gearboxes
General
Helical gear units
Bevel-helical units
Worm gear units
Epicydic gearboxes
Other types of gearbox
Custom-made gears and gearboxes
Installation of gearboxes
General
Alignment
Vibration and noise
Cooling
Access
Design policy
Safety factors
Design life and duty cycle
Acknowledgements and References
Appendix: Nomograms for backlash
Index: - Gear Technology Manual
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