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Welcome.

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Almost all world war 2 tanks. TIGER tanks of Germany, improved version of double differentials known as Maybach system were used in German PANTHER tanks.

​@@xlmachines120Do actual tracked vehicles with a steering wheel like small dozers or Deere RT tractors use the same principle?

Small part of WWII vehicles used double differentials. Virtually all Soviet tanks used clutch and brake, as did Panzer III and Panzer IV. Lots of others used controlled differential. French CharB was one of the first to have double diff steering. It entered production in 1936.

Yes two Sprocket sets for driving the tracks also exist.

Yes. I don't know how I missed it. You found it very nice.

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crazy ha ha ha. Thanks.

Planetary gear trains are used to reduce the output speed and increase the torque in a compact package. They are used in automatic gearbox of cars, large trucks, as final drive gear train in tracked vehicles like bull dozers, tracked shovels, also used in electric hub motors of e bikes for increasing the drive torque. These are some applications apart from this they are used in many number of industrial machines that need a compact design. Planetary gear trains are compact and smaller in size and weight when compared to compound gear trains of same power level.

Using an hydraulic motor. motor direction is changed using direction control hydraulic valve. Hydraulic motor is driven by pressurized fluid supplied by oil pump attached to the engine.

@@xlmachines120 Thank you for explanation

@@jiriprochazka9254 Welcome.

@@xlmachines120 Then in the case of "Neutral Steering", all the power is carried by the hydraulic motor, right? Isn't there a way to run the steering input from the engine itself? Is this the concept that powers tanks and etc... in the real world?

Neutral steering is always done when the vehicle is stationary. Two tracks will move in opposite directions with respect to each other. Hydraulic motor with appropriate gearing is capable of producing such high torques for rotating the vehicle in the same place. Differential gears are used to give compliance when one of the tracks get stopped or slowed down without blocking the engine. Some modern excavators designs also have final planetary gear drive with a hydraulic motor as the prime mover to move the vehicle that is attached within the track itself. The engine in the vehicle runs a powerful oil pump that supplies pressurized fluid to all hydraulic equipments in the vehicle which are controlled by respective valves. Hydraulic motors are such a powerful piece of equipment.

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Yes absolutely.

Grey colour horizontal shaft is the main output shaft which has splines, brass yellow colour component is dog clutch that engages and disengages the forward and reverse bevel gears. Red, blue and green colour components are bevel gears. Green colour bevel gear is the driving gear which is connected to the engine. Shifting lever slides on the groove of the dog clutch. I don't know what is your application is. But if you want to build one to verify the working mechanism of this gear box then start with small parts. Buy two sets of electric angle grinder bevel gear sets, which you can buy online. These spare bevel gear set costs around 380 rupees. Find a suitable shaft for the gears. Use plywood for supporting structure. Use ball bearings for supporting the gears. You can weld the projections for the dog clutch and file it smooth. Make only two splines on the main shaft and in the dog clutch to simplify the process. Two splines should be opposite to each other on the shaft. Cut matching slot in the dog clutch internally. This will be fun to build.

Thank you.

Welcome. Glad this video had helped you. you can also watch other types of governors in this channel.

Blender 3D. Modelling, animation, rendering and video editing all done using Blender. You can download the software from www.blender.org

The fork is a "C" shaped structure, there is no rod in between the two arms of the fork. The round end of the fork arm just slides in the groove of the sleeve. This is roughly 150 year old mechanism. Watt governor is the first centrifugal governor introduced for automatic speed control of steam engines. You can watch other types of governor animations in my channel to better understand the fork sleeve mechanism. Even in the forks of other types there is no rod passing through the sleeve. Fork pins are short enough to fit inside the groove on the sleeve on both sides.

To better understand fork sleeve connection and sliding operation watch this video th-cam.com/video/zbM7wTnLgIE/w-d-xo.html The shifting lever mechanism in the given gear box video and the fork sleeve mechanism are similar in construction and operation.

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Glad you enjoyed!

Here's that variation: _Contra Rotating Propellers using Five Helical Gears_ th-cam.com/video/n2DI_nnJCks/w-d-xo.html

There are many possible configurations to achieve contra rotating systems. You can see other contra rotating propeller designs here Rolls Royce Griffon gear box model Five Helical Gear Contra Propeller 5 Blade - 3D Animation th-cam.com/video/n2DI_nnJCks/w-d-xo.html Six Helical Gear Contra Propeller 3 Blade - 3D Animation th-cam.com/video/Ae7DLLbKSoU/w-d-xo.html Bevel Gear Contra Rotating Propeller 2 Blade - 3D Animation th-cam.com/video/d3b_WJD_Bvs/w-d-xo.html

Thanks!

Thank you! Cheers!