Somethins wrong sa Motor ng wheelchair

[zinckingeye]

  Kua bale i2 ung amin design ng wheelchair namen-> http://i98.photobucket.com/albums/l241/zinckingeye/Picture1.png
http://i98.photobucket.com/albums/l241/zinckingeye/Picture2.png
http://i98.photobucket.com/albums/l241/zinckingeye/Picture3.png

e2 naman ung gagamitin naming motor->  http://www.electronicslab.ph/forum/index.php/topic,17311.msg302482.html#msg302482

e2 po ung problema. Baket magkaiba ang bilis ng ikot ng motor kahit na pareho po sila ng specification. Tapos parallel connection ang gamit...

[toasted siopao]

There will always be a speed difference kahit pa same specification, and sabihin pa natin very tight tolerance ng manufacturer sa speed, later on there will be difference kasi yung terrain rin ng motor kung san sya tumatakbo nagbabago, best thing to do is to use a wheel encoder as a feedback.

[NanotecH]

bakit kailangang gumamit pa ng sprocket & gear kung puede namang direkta.  baka maging hazard lang yan lalo na kung madis-engaged ang chain.

tama, kailangan mo nga ng feedback para makontrol ang speed ng motor para tumakbo ito ng pareho.

[zinckingeye]

bale meron na po yan cover ung sprocket and gear. ang sabi daw ng sir namen eh, dapat ang isang motor eh for forward and backward at ang isa ay para sa manibela....

[bravokilo]

@Z-eye: i read dun sa isang post mo, wiper motor gamit nyo na 12V DC of course. Malamang, yung isang motor runs CW and the other one CCW. Assuming parehong pareho ang takbo yan, pag reverse magiiba depende sa timing setting ng DC motors.dun s maliliit na motor namin sa RC, yung plate holding brushes ay ajustable. Kung 0-0 and timing setting, parejo ang ikot ng fward and reverse. Pero, timing is usually advanced for forward to get better "punch". Ayan, di parejo pag ni reverse nyo and ikot.There 3 ways to solve this problem. One is to adjust the timing of the reversed motors to match that of the other motor. The other way is to reduce the V dun sa mabilis na motor. The inconvenient way and not recommended is to change the sprocket diameter but this will affect the torque of one wheel.

most practical is to reset the timing altho mechanically a challenge.


BK