Go to Post Now I watch students walk through the halls together as Robotics members. - MysterE [more]
Home
Go Back   Chief Delphi > Technical > Electrical
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 07-04-2015, 14:38
Team3844's Avatar
Team3844 Team3844 is offline
Registered User
AKA: Arthur Canada
FRC #3844 (Kentucky Wildbots)
Team Role: Coach
 
Join Date: Nov 2013
Rookie Year: 2011
Location: Corbin, Ky
Posts: 70
Team3844 has a spectacular aura aboutTeam3844 has a spectacular aura about
Invacare wheelchair motor

Our team had a power wheel chair donated last year. We would like to use it as a chassis for a t shirt cannon. the chair has 2 invacare hub motors that I am pretty sure are 24 volt.
Part # 1079291

we have tried to run it hooking two 12 volt batteries in series to make 24 volt, but it just jerks.

Last edited by Team3844 : 07-04-2015 at 14:45.
  #2   Spotlight this post!  
Unread 07-04-2015, 14:43
ChuckDickerson's Avatar
ChuckDickerson ChuckDickerson is offline
Mentor / Bayou & CMP Division LRI
FRC #0456 (Siege Robotics)
Team Role: Mentor
 
Join Date: May 2004
Rookie Year: 2004
Location: Vicksburg, MS
Posts: 877
ChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond reputeChuckDickerson has a reputation beyond repute
Re: Invacare wheelchair motor

They usually also have an electric brake built into the motor that needs to be energized to release. Make sure you are doing that as well.
  #3   Spotlight this post!  
Unread 07-04-2015, 17:47
chapman1's Avatar
chapman1 chapman1 is offline
Registered User
FRC #3688 (Suttons Bay Norsemen Robotics)
Team Role: Coach
 
Join Date: Mar 2011
Rookie Year: 2011
Location: Suttons Bay
Posts: 83
chapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond reputechapman1 has a reputation beyond repute
Re: Invacare wheelchair motor

If you don't need the brake, then that mechanism can be quite easily removed
  #4   Spotlight this post!  
Unread 07-04-2015, 20:29
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,113
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Invacare wheelchair motor

Do you know whether it's a brushless motor that requires a special controller?
  #5   Spotlight this post!  
Unread 07-04-2015, 20:41
Team3844's Avatar
Team3844 Team3844 is offline
Registered User
AKA: Arthur Canada
FRC #3844 (Kentucky Wildbots)
Team Role: Coach
 
Join Date: Nov 2013
Rookie Year: 2011
Location: Corbin, Ky
Posts: 70
Team3844 has a spectacular aura aboutTeam3844 has a spectacular aura about
Re: Invacare wheelchair motor

It has 3 leads red, black and blue. Then a separate grouping of 5 wires. I guess the 5 may be for built in positioning sensors.
  #6   Spotlight this post!  
Unread 07-04-2015, 22:11
Richard Wallace's Avatar
Richard Wallace Richard Wallace is offline
I live for the details.
FRC #3620 (Average Joes)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 1996
Location: Southwestern Michigan
Posts: 3,674
Richard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond repute
Re: Invacare wheelchair motor

Quote:
Originally Posted by Team3844 View Post
It has 3 leads red, black and blue. Then a separate grouping of 5 wires. I guess the 5 may be for built in positioning sensors.
The motor is brushless. As Alan suggested it will require a special controller, and will definitely NOT run from a battery, dc supply, or one of the dc motor speed controllers used in FRC.
__________________
Richard Wallace

Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003

I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)
  #7   Spotlight this post!  
Unread 07-04-2015, 22:31
asid61's Avatar
asid61 asid61 is offline
Registered User
AKA: Anand Rajamani
FRC #1072 (MVRT)
Team Role: Mechanical
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Cupertino, CA
Posts: 2,231
asid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond reputeasid61 has a reputation beyond repute
Re: Invacare wheelchair motor

Quote:
Originally Posted by Team3844 View Post
It has 3 leads red, black and blue. Then a separate grouping of 5 wires. I guess the 5 may be for built in positioning sensors.
That sounds like a brushless motor. You could buy a brushless ESC from a place like hobbyking for cheap, but I urge you to look for documentation first. There are several types of brushless motors, and I wouldn't know what those 5 extra wires are for.
  #8   Spotlight this post!  
Unread 07-04-2015, 22:36
TheHolyHades1 TheHolyHades1 is offline
Registered User
no team
 
Join Date: Jan 2014
Rookie Year: 2010
Location: usa
Posts: 145
TheHolyHades1 is a jewel in the roughTheHolyHades1 is a jewel in the roughTheHolyHades1 is a jewel in the rough
Re: Invacare wheelchair motor

If I had to guess, I'd say that the extra wires are for some sort of sensor feedback - likely encoder data, current sensing, or something similar. I suppose there's also a small chance that there's an ESC built into the motor itself, and those wires are for the signal data. In other words, I've got absolutely no idea, and this is a case where documentation is a must .
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 20:28.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi