- 358 pages
- ePUB (mobile friendly)
- Available on iOS & Android
About This Book
This book provides comprehensive information for various planetary gear trains, with practical applications and comprehensive references to technical articles. In the text's chapters, readers can find all the information needed for various types of gear trains, with illustrations and examples. The authors help gear designers to creatively understand the design of gears, as well as master the mechanical calculations needed. Planetary Gear Trains is the most comprehensive and up-to-date work available in this key technical area.
The book reflects not only teaching, but also the practical experience of the authors. It was developed under the motto " From practice to practice ".
Frequently asked questions
- In both the largest and the smallest powers, such as powerful ship reducers or multipliers in wind turbines, as well as in miniature clock mechanisms.
- Also for the largest and smallest speed ratios.
- As gears with the highest efficiency and as gears with the required lowest efficiency, or self-locking.
- Reduced material consumption and a light construction, respectively.
- A small mass moment of inertia, important for fast-paced drives.
- The diminished dimensions of the gears allow for both heat treatment and achieving higher accuracy in their production, which combined with the lower pitch line velocity leads to lower internal dynamic loads and to a quieter operation of the gear train, which is particularly important nowadays.
- Due to their compactness, the required smaller gear train bearer is important in some cases. Especially for lifting equipment, such as bridge cranes, this accounts for a substantial lightening, not only for the trolley but also for the entire construction, and hence reduction in the price.
- Another substantial advantage is the very high efficiency of some PGTs and vice versa—the possibility of self-locking when efficiency is low.
- The coaxiality of the input and output shaft also has advantages in some cases (e.g., vehicles, wind turbines, and aircraft engines).
Constructive volume V and diameter d3 of the planetary gears depending on the number of the planets k and mesh load factor Kγ (the uneven distribution of the load between planets is taken into account; see Chapter 8.)
- Gear trains, both with F = 1 and with F = 2 degrees of freedom
- Reducers or multipliers
- Differentials, i.e., power division or power summing gear trains
- A part of systems to make a stepless change of the angular velocity
- Change-gears (gearboxes) in vehicles—cars, buses, tugboats, tractors, tanks, etc.
- Reversing gears in ships, locomotives, etc.