kids electric car gearbox image
Alex
I have four little motors ripped straight out of those little "PowerWheels" ride-on toys for younger kids (they were my siblings'). I might be able to get my hands on two more. I'm building an electric go-kart, and I was wondering whether pairing up two (or three) motors to each drive wheel would work ok, and how the electrical system would work. Is there a website that covers this? Also, I've already made a vehicle using the same gearbox, motor, and wheel configuration as in the original Jeep toy, but it used a PCV frame and a 1/2" steel axle instead of a 3/8" iron one. This worked, however, I want to use a custom steel frame with a custom gearbox (and possibly bicycle wheels, although I may stick with the standard 10" go-kart wheels).
Answer
Suggest you skip the gear box entirely to save weight and reduce complexity.
Your batteries will add tremendous weight as it is and most DC traction motors can accomodate a load of varying torque by their nature.
RE: coupling of multiple motors to a common drive wheel (or wheels), this can be a tricky from a mechanical standpoint. Why dont you look around for larger motors?
Your limitation will be in size of your motor (total HP) as well as the peak capacity of your battery bank. Even if you have spare motor capacity, you will not be able to utilize it if you dont have an adequate power source.
Best motors will require higher voltage than 12VDC available from a car battery, so you may have to link several batteries IN SERIES to accomplish this. Check battery specs to see if this is acceptable. Many small batteries in a parralel/series combination are better than a few larger batteries yielding lower voltage.
I am betting that there is a wealth of information available online and you may have to do some research.
Make sure that any motor NOT in use is electrically disconnected from the battery else you may wind up "fighting" that motor (it may provide mechanical resistance working against the back emf of a drained battery, for eg)
Hope this hlelps.
Suggest you skip the gear box entirely to save weight and reduce complexity.
Your batteries will add tremendous weight as it is and most DC traction motors can accomodate a load of varying torque by their nature.
RE: coupling of multiple motors to a common drive wheel (or wheels), this can be a tricky from a mechanical standpoint. Why dont you look around for larger motors?
Your limitation will be in size of your motor (total HP) as well as the peak capacity of your battery bank. Even if you have spare motor capacity, you will not be able to utilize it if you dont have an adequate power source.
Best motors will require higher voltage than 12VDC available from a car battery, so you may have to link several batteries IN SERIES to accomplish this. Check battery specs to see if this is acceptable. Many small batteries in a parralel/series combination are better than a few larger batteries yielding lower voltage.
I am betting that there is a wealth of information available online and you may have to do some research.
Make sure that any motor NOT in use is electrically disconnected from the battery else you may wind up "fighting" that motor (it may provide mechanical resistance working against the back emf of a drained battery, for eg)
Hope this hlelps.
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Title Post: Should I use these motors in my Go-Kart?
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Rating: 92% based on 925 ratings. 4 user reviews.
Author: Unknown
Thanks For Coming To My Blog
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