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木制发电机

2018-4-22 21:27| 发布者: dymodel| 查看: 486| 评论: 0|原作者: reid

摘要: 木制发电机 Wooden Alternator After building the all wooden windmill I felt inspired to make a larger and sturdier version. The following page offers a brief description of building the alternator an ...
木制发电机
Wooden Alternator
After building the all wooden windmill I felt inspired to make a larger and sturdier version. The following page offers a brief description of building the alternator and testing it. I designed this alternator WHILE I was building it, using mostly intuition and working around supplies available. Undoubtedly many improvements could be made. If you have any ideas or thoughts about this, please share with us via email or our discussion board!
Para Espa?ol, traducción de Julio Andrade.
Initial test results--wired in series, reaches 12 volts for charging at 120 rpm, with 6 amps charging current at 300 rpm. Wired in parallel, reaches 12 volts at 240 rpm, with 12 amps charging current at 350 rpm. At 500 rpm it produces about 500 watts. Unfortunately this is the limit of our current testing rig--we need to build a bigger one. More tests and a chart to come!
木制发电机

Parts and supplies used
To build the alternator I used the following:
10" long piece of shaft, 1/2" diameter.
2 1/2" inner diameter ball bearings
18 surplus NdFeB rare earth magnets
3/4" plywood
5 Pounds 18 AWG magnet wire
1 1/2" drywall screws
3" deck screws
Epoxy
Super Glue
Fiberglass resin for final finishing
 
I cut out 5 plywood disks on a bandsaw, 9" diameter. In the center of each disc I drilled a 1/2" hole. These disks are laminated on the shaft to build up the armature. In order to hold the armature securely to the shaft, I drilled a hole about 4" from one end 1/8" diameter, and inserted the a pin, 4" long. On one disk I routed a slot, 4" long and 3/16" wide, 3/16" deep, to accept this pin so that it would be locked to the shaft. I generously coated the plywood discs with wood glue and clamped them together on the shaft, then screwed them together with 3" wood screws.

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