Research Paper On Epicyclic Gear Train - Amazon S3.
Dilawer et al. (11) described an optimal design of the compound of the epicyclic gear train with the load analysis which was carried out in the gear trains by different modules and power levels.
The planetary gear train consists of two sun gears, two sets of pinion gears (three in each set), two sets of annular (internal) gears and pinion carriers which support the pinion gears on pins. Helical teeth are used throughout. For all forward gears, power enters the gear train via the forward annular gear and leaves the gear train by the reverse annular gear.
An epicyclic gear train consists of two gears mounted so that the center of one gear revolves around the center of the other. A carrier connects the centers of the two gears and rotates to carry one gear, called the planet gear, around the other, called the sun gear. The planet and sun gears mesh so that their pitch circle rolls without slip.
The sun gear is fixed in the two animations above, while the carrier is free to move. The resulting motion is epicyclic, since the planet makes orbits around the sun. Now count the number of rotations made by each gear in the left-hand animation. You should observe that the planet makes three rotations and the ring makes 1.5 for every rotation of the carrier. Intuitively, you might have.
Example 6 Figure shows a compound epicyclic gear train, gears S1 and S2 being rigidly attached to the shaft Q. If the shaft P rotates at 1000 rpm clockwise, while the annular A2 is driven in counter clockwise direction at 500 rpm, determine the speed and direction of rotation of shaft Q. Dr.T.V.Govindaraju,SSEC.
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Definitions. A gear train is a set or system of gears arranged to transfer rotational torque from one part of a mechanical system to another, with some gear ratio performing a mechanical advantage. Epicyclic gearing or planetary gearing is a gear system consisting of one or more outer gears, or planet gears, revolving about a central, or sun gear. Key Facts.