Planetary or Epicyclic Gear Train Gear Train



Like a compound gear train, planetary trains are used when a large change in speed or power is needed across a small distance. There are four different ways that a planetary train can be hooked up.
A planetary gear train is a little more complex than other types of gear trains. In a planetary train at least one of the gears must revolve around another gear in the gear train. A planetary gear train is very much like our own solar system, and that's how it gets its name. In the solar system the planets revolve around the sun. Gravity holds them all together. In a planetary gear train the sun gear is at the center. A planet gear revolves around the sun gear. The system is held together by the planet carrier. In some planetary trains, more than one planet gear rotates around the sun gear. The system is then held together by an arm connecting the planet gears in combination with a ring gear.
The planetary gear set is the device that produces different gear ratios through the same set of gears. Any planetary gearset has three main components:
·         The sun gear
·         The planet gears  and the planet gears' carrier
·         The ring gear
Each of these three components can be the input, the output or can be held stationary. Choosing which piece plays which role determines the gear ratio for the gearset.
These four combinations and the resulting speed and power outputs are listed in Table
         They have higher gear ratios.
         They are popular for automatic transmissions in automobiles.
         They are also used in bicycles for controlling power of pedaling automatically or manually.
         They are also used for power train between internal combustion engine and an electric motor.





8 Responses so far.

  1. Thanks very much for your great in sequence .And information full description . I feel it is Sus a topic that many kinds of people features many problems. thanks for this
    rent to own homes

  2. I would like to recommend your article .. you can also refer Helical Planetary Gear Box Manufacturers

  3. Brightway says:

    Brightway Exports - Leading Manufacturer & Exporters: Rotavator | Rotavator Gear Box Single Speed | Rotavator Gear Box Multi Speed | Gear Box Manufacturer | Tractor Rotavator | Gear Box. Contact: + 91 9878546522 - Dhuri, Sangrur, Punjab, India, UP , MP.


    Brightway Exports | Tractor Rotavator





  4. nice blog http://www.sorinc.com/

  5. if the planet carrier is fixed as the picture shows can you calculate the momentum to keep the planet carrier 0 reps?

  6. You post is great to see for more check to our pipe threading machine manufacturers for your future support.

  7. Featured Project Development: State of the Art Novel InFlowTech 1-Gearturbine RotaryTurbo, 2-Imploturbocompressor One CompressionStep: |/ *1; Gearturbine Project, Rotary Turbo, Have the similar basic system of the Aeolipilie Heron Steam Turbine device from Alexandria 10-70 AD · With Retrodynamic = DextroRPM VS LevoInFlow + Ying Yang Way Power Type - Non Waste Looses · 8X/Y Thermodynamic CYCLE Way Steps. 4 Turbos, Higher efficient percent. No blade erosion by sand & very low heat target signature Pat:197187IMPI MX Dic1991 Atypical Motor Engine Type. |/ *2; Imploturbocompressor; One Moving Part System Excellence Design - The InFlow Interaction comes from Macro-Flow and goes to Micro-Flow by Implossion - Only One Compression Step; Inflow, Compression and outflow at one simple circular dynamic motion / New Concept. To see a Imploturbocompressor animation, is possible on a simple way, just to check an Hurricane Satellite view, and is the same implo inflow way nature. http://stateoftheartnovelinflowtech.blogspot.mx/

  8. We manufacture and supply a wide assortment of agricultural and automotive parts including rotavator gear ser, axle set, housing set, yokes, PTO shafts, bevel gear & pinion, side plate gear drive, side plate chain drive, all disc flow spare parts. Being a technology driven organization, we leverage upon our streamlined infrastructure & CAD/ CAM facility, which enables us to develop the innovation components & designs as per the suggestions of our well established R&D wing & customized specifications of clients. Since our inception in the year 1997, we are continuously pursuing the approach of total customer satisfaction.

    Rotavator Manufacturer
    Power Tiller Manufacturer
    Tractor Parts Manufacturer

Leave a Reply