Gears Trains - Gears Trains. Need of Gear Train. Types of Gear Train. Simple Gear Train. Compound...

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Transcript of Gears Trains - Gears Trains. Need of Gear Train. Types of Gear Train. Simple Gear Train. Compound...

  • Gears Trains

  • Gears Trains

  • Need of Gear Train

  • Types of Gear Train

  • Simple Gear Train

  • Compound Gear Train

    .

  • Reverted Gear Train

    When the axes of the first gear (i.e. first driver) and the last gear (i.e. last driven or follower) are co-axial, then the gear train is known as reverted gear train

  • Reverted Gear Train

  • Reverted Gear Train

  • Reverted Gear Train

  • Epicyclic Gear Train

  • Epicyclic Gear Train

  • Epicyclic Gear Train

  • Compound Epicyclic Gear Train—Sun and Planet Gear

  • (a) 20 rpm

    (b) 27 𝟑

    𝟏𝟏 rpm

    (c) 19 𝟕

    𝟏𝟏 rpm

    (d) 100 rpm

    A single epicyclic gear train is shown in the given figure. Wheel A is stationary. If the number of teeth on A and B are 120 and 45 respectively, then when B rotates about its own axis at 100 rpm, the speed of C would be

  • (a) 12

    (b) 15

    (c) 18

    (d) 24

    In the epicyclic gear train shown in the given figure, A is fixed. A has 100 teeth and B has 20 teeth. If the arm C makes three revolutions, the number of revolutions made by B will be

  • (A) 0 rpm (B) 20 rpm

    (C) 33.33 rpm (D)66.67 rpm

    The sun gear in the figure is driven clockwise at 100 rpm. The ring gear is held stationary. the number of teeth on sun gear is 20, on planet gear is 30 and on ring gear is 80 shown on the gears, the arm rotates at

    Arm

    Planet 30T

  • (a) 10 rpm ccw

    (b) 10 rpm cw

    (c) 12 rpm ccw

    (d) 12 rpm cw

    An epicyclic gear train is shown schematically in the adjacent figure. The sun gear 2 on the input shaft is a 20 teeth external gear. The planet gear 3 is a 40 teeth external gear. The ring gear 5 is a 100 teeth internal gear. The ring gear 5 is fixed and the gear 2 is rotating at 60 rpm (ccw = counter-clockwise and cw = clockwise). The arm 4 attached to the output shaft will rotate at

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