Is it possible to make the gear train with only one "planet" gear and no "sun" gear? With the ring gear of course. The objective would be to rotate the ring gear with the planet gear
@supersonicbros23 This is what is found in helicopter transmissions. The sun gear will be connected to input drive from the engines and the output drive to the rotor system will be connected to the planetary gears. You have to go from high RPM and low TQ of the engines to low RPM and high TQ in order to spin rotor blades.
@fairyheli2 no, each gear of the planetary gears (sun, ring, carrier) are each held by multiple clutches. but what does replace the clutch of a manual transmission is the Torque Converter. so where manual transmissions have a flywheel with a clutch on it, the autotransmission has a flexplate that drives a torque converter.
@fairyheli2 Yes. Several possible ways you could configure this, revolving around "stalling" a component.
Simplistic version. The "planetary carrier" connects to a drive shaft, the sun gear to the engine. The ring gear has a brake connected. Brake stops ring gear, carrier turns. Ratio of input out put varies by gear.
Link two pairs of sun gears via intermediary spur gears within one planetary gear carrier... Voile differential. Brake right drive shaft left goes, release it spins
why would anyone want to know this? when you do transmission repair, you only deal with valve bodies I'm pretty sure. It's the pressure the ATF puts on aspherical remaries and rotmaries. Other than that, unless a planetary gears explodes (which never happens) the only other thing in the tranny is the TC.
@gbop63 have you ever rebuilt an automatic transmission? You have to pull the gearset(s) out. The valve body is only one part. Also, hybrids use a planetary gear set. On the Prius, the gas engine is connected to the planetary carrier, the electric motor is connected to the ring gear, and the sun gear is connected to the generator. Ford and GM also use a planetary gear set on their hybrids.
This is great! Trying to get my head around how auto. trans. works... the drawings of planetary gears are good but seeing them in motion really helps a lot.
exactly what i was looking for!
TheSureMusic 3 weeks ago
I love planetary gears because looks like victorian technology.
Qadizadeh 2 months ago
Is it possible to make the gear train with only one "planet" gear and no "sun" gear? With the ring gear of course. The objective would be to rotate the ring gear with the planet gear
fathi88 3 months ago
Thats the same as a Ball Bearing
theAngelofhevn 4 months ago
Makes ya wonder,
Which one is the drive gear?
supersonicbros23 6 months ago
@supersonicbros23 This is what is found in helicopter transmissions. The sun gear will be connected to input drive from the engines and the output drive to the rotor system will be connected to the planetary gears. You have to go from high RPM and low TQ of the engines to low RPM and high TQ in order to spin rotor blades.
discofishing 2 months ago
could this be used instead of a clutch
fairyheli2 11 months ago
@fairyheli2 no, each gear of the planetary gears (sun, ring, carrier) are each held by multiple clutches. but what does replace the clutch of a manual transmission is the Torque Converter. so where manual transmissions have a flywheel with a clutch on it, the autotransmission has a flexplate that drives a torque converter.
justinalexanderson 10 months ago
@fairyheli2 Yes. Several possible ways you could configure this, revolving around "stalling" a component.
Simplistic version. The "planetary carrier" connects to a drive shaft, the sun gear to the engine. The ring gear has a brake connected. Brake stops ring gear, carrier turns. Ratio of input out put varies by gear.
Link two pairs of sun gears via intermediary spur gears within one planetary gear carrier... Voile differential. Brake right drive shaft left goes, release it spins
pbgd3 9 months ago
Can planetary gear carry big loads?
ton2xmilton 11 months ago
Does anyone know what kind or name of the software that was used to draw these gears?
hteen 11 months ago
@hteen It's POV-Ray (freeware!)
PelletierPhysics 11 months ago
why would anyone want to know this? when you do transmission repair, you only deal with valve bodies I'm pretty sure. It's the pressure the ATF puts on aspherical remaries and rotmaries. Other than that, unless a planetary gears explodes (which never happens) the only other thing in the tranny is the TC.
gbop63 1 year ago
@gbop63 I had a 1995 for tarus SHO and the planetary gear granaded. this does happen your wrong.
uhhidunno 1 year ago
@gbop63 What a ridiculous comment to make.
Dibby59 1 year ago
@gbop63 you sir are VERY wrong
themiker15 11 months ago
@gbop63 have you ever rebuilt an automatic transmission? You have to pull the gearset(s) out. The valve body is only one part. Also, hybrids use a planetary gear set. On the Prius, the gas engine is connected to the planetary carrier, the electric motor is connected to the ring gear, and the sun gear is connected to the generator. Ford and GM also use a planetary gear set on their hybrids.
rjherche 10 months ago
Thanks - I wondered what planetary gears were for - very nicely demonstrated.
rjy8960 1 year ago
thx ^ ^
Solidnyi 1 year ago
lmao boy i hate this shit, but its sooo geniuss
shittalker911 1 year ago
This is great! Trying to get my head around how auto. trans. works... the drawings of planetary gears are good but seeing them in motion really helps a lot.
Thanks for a great job.
TU80609 1 year ago 23