How does epicyclic gearbox work?
How does epicyclic gearbox work?
An Epicyclic gearbox is an automatic type gearbox in which parallel shafts and gears arrangement from manual gear box are replaced with more compact and more reliable sun and planetary type of gears arrangement and also the manual clutch from manual power train is replaced with hydro coupled clutch or torque convertor …
What is epicyclic reduction?
Epicyclic reduction unit according to one of cliams 1 to 3, wherein the toothing of the fixed internally toothed ring gear (10) and the rotery internally toothed ring gear (11) has a length which is substantially half the length of the toothing of the planetary gears (7).
What are the advantages of epicyclic gearing?
Advantages of Epicyclic Gearbox :
- High reduction ratios.
- Compact and lightweight with high torque transmission.
- High radial loads on the output shaft.
- It is quieter in operation.
- Uniform distribution of load over all gears having greater tooth contact.
What is structural diagram of gearbox?
The structural diagram is a kinematic layout that shows the arrangement of gears in a gear box. The speed diagram, also known as ray diagram, is a graphical representation of the structural formula. The function of spacers is to provide the necessary distance between the gears and the bearings.
What are different methods to analyze the epicyclic gear train?
There are several approaches used to deal with the angular velocity analysis of epicyclic gear trains, such as: the vector loop method [2], the relative velocity method [3], the tabular method [4], the algebraic method [5], and the fundamental circuit method [6, 7], which have been proposed over the last several …
What is an epicyclic gear central differential?
Epicyclic gear central differential ( Fig. 7.38) A popular four wheel drive arrangement for a front longitudinally mounted engine has a transfer box behind its five speed gearbox. This incorporates a viscous coupling and an epicyclic gear train to split the drive torque, 34% to the front and 66% to the rear ( Fig. 7.38 ).
What is the working principle of an epicyclic gearbox?
The working principle of the epicyclic gearbox is based on the fact the fixing any of the gears i.e. sun gear, planetary gears, and annular gear is done to obtain the required torque or speed output. As fixing any of the above causes the variation in gear ratios from high torque to high speed. So let’s see how these ratios are obtained
What is a single speed epicyclic differential transmission?
A single speed epicyclic differential transmission allows an input shaft (12) to be connected to two output shafts (16, 23) with substantially equal torque split.
What is an epicyclic gear train overdrive?
Epicyclic gear train overdrives are so arranged that the input shaft drives the pinion carrier while the output shaft is driven by the annular gear ring ( Figs 3.27 and 3.28 ). The gear train may be either of simple (single stage) or compound (double stage) design and the derived formula for each arrangement is as follows:
