12/11/11, 02:48 PM
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Join Date: May 2007
Location: Conway SC
Posts: 1,225
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I was asked to give some more info on how this machine is built/set-up. It was fabricated out of 1" square tubing 1/8" thick. This was my first build using a welder and tubing bender so do not look at the welding to close. The drive motors, wiring harness and control were remove from a power wheel chair. The two motors operate on 24 volts and are already a gear reduction motor but being I was using a larger rear tire than is on the power wheel chair and I wanted a lot of torque I reduced their output even more to 4.6 to 1 by using a 13 tooth sproket on the motor and a 60 tooth on the wheels drive axle using #35 chain to connect them. The machines top speed is about the speed of a walk but can be slowed down to a craw by using the original wheel chair speed adjust control with the joy stick pushed all the way forward. Naturally it will stop by releasing the joystick or returning it to its centered position. The machine works like a Z turn lawn mower or a rear drive power wheel chair meaning the front tires swivel as the rear tires control the turn. No need for front wheel stearing this way.
I have 4 T-105's 6 volt Trojan golfcart batteries on two racks above/behind the drive wheels so less weight will be put on the front swivel tires. The 4 batteries are hooked in series for 24 volt set-up. I am using 2 12 volt 80 watt solar panels hooked in series that will run through a 20 amp 24 volt charge controller to keep the batteries charged properly. The wiring was simple because I used everything off the power wheel chair including the wiring harness. I had to lengthen the wires some because this machine is so much bigger than the wheel chair.
The 24 volt battery set-up was wired to the original battery disconnect plug that was on the wheel chair battery pack, so its just a simple plug into the harness. The 24 volt solar charge controller wires hooks to the batteries in the same place as the positive and negative wires for the disconnect plug.
I had the 4 trojan batteries but I could have used 2 12 volt deep cycle batteries if I had of had some or I could have used the original batteries off the wheel chair but those batteries were going bad---so I used what I had but I am sure the run time will be alot longer the way I got it set-up.
Any Questions---Just ask.
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Originally Posted by PD-Riverman
I have 2 80 watt panels and 4 6 volt golfcart batteries
The control is moveable from one side to the other as well as in the middle.
SolarGary you said when I get finished you wanted these pictures but I probably will never finish it. I already got several more things I want to do to make this machine even more useful.
The two seats are adjustable---they will move several inches closer to the row middle or several inches farther away. They are in the middle in this pic.
Once I get the new worn off it I will quit using it to pick Collards---LOL. |
Last edited by PD-Riverman; 12/11/11 at 03:10 PM.
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