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Powering multiple axels
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I'm planning to build a semi in the future but the main problem that I have had in the past when attempting to build vehicles with multiple sets of axles is transferring power from one axle to another using only one motor. It ended up in gears breaking. How does one use pendular axles with a multiple axles being driven with out having any of these problems?
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| August 19, 2013, 11:26 pm
Quoting Tommy S.
I'm planning to build a semi in the future but the main problem that I have had in the past when attempting to build vehicles with multiple sets of axles is transferring power from one axle to another using only one motor. It ended up in gears breaking. How does one use pendular axles with a multiple axles being driven with out having any of these problems?


I broke quite a few gears and twisted an axel when building a 4x XL motor truck. It only has a single rear axel but the principles are the same...

To fix this problem I:

Reduced the torque but increase the power, letting the motors themselves take more of the strain, rather than the gears.

'Doubled' all the gears, so each transfer from one gear to the next was actually from two gears to another two.

I used Technic pins to connect the two gears to one another, as well as the axel running through them. This spreads the force through the gear better so that not all of it is on the central hole, which can break.

Hope this helps - good luck : )

Ape

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| August 20, 2013, 4:00 am
I mean do you transfer power through your first axles (differential or knob gears) to the next axle because I want to have a transmission.
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| August 21, 2013, 1:26 am
Quoting Tommy S.
I mean do you transfer power through your first axles (differential or knob gears) to the next axle because I want to have a transmission.


Ah. I've built a fairly tough gearbox (see my page) but it would definitely be the weak point if I used it in my truck, and I think it would probably fail. Sorry, I've not found a way to have a gear box in a heavy high power MOC.
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| August 21, 2013, 4:52 am
The way to solve that problem is to forget about lego transmission drive rings and use a non sequential transmission.
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| August 21, 2013, 10:44 am
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