Go to Post So, FIRST is turning into the For the Inspiration of Science and Trains? That makes sense... Not a whole lot of re-branding will be needed.... - dqmot17 [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
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 27-10-2014, 11:01
Dr.Gusta's Avatar
Dr.Gusta Dr.Gusta is offline
Registered User
FRC #5107 (The Neurotoxins)
Team Role: CAD
 
Join Date: Jan 2014
Rookie Year: 2014
Location: Upland, CA
Posts: 155
Dr.Gusta is a glorious beacon of lightDr.Gusta is a glorious beacon of lightDr.Gusta is a glorious beacon of lightDr.Gusta is a glorious beacon of lightDr.Gusta is a glorious beacon of lightDr.Gusta is a glorious beacon of light
Greasing "open" gearboxes

So my team and I are working on a drive gearbox and it has pocketed face plates much like the WCP style (image below). What we were wondering is how to keep grease from flying off of the gears. We use white lithium and when the gears get to speed they will throw all of the grease off. This could be solved by not doing pockets all the way through (leaving a 1/16in) when milling the plates but I was wondering what other teams did to solve this issue that had WCP type gearboxes.

http://imgur.com/NAilpGr

Last edited by Dr.Gusta : 27-10-2014 at 11:03.
  #2   Spotlight this post!  
Unread 27-10-2014, 11:31
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,017
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: Greasing "open" gearboxes

try a dry graphite lubricant?
  #3   Spotlight this post!  
Unread 27-10-2014, 11:34
Boe's Avatar
Boe Boe is offline
2175 Alum
AKA: Brian Boehm
FRC #2175 (The Fighting Calculators)
Team Role: Alumni
 
Join Date: Mar 2012
Rookie Year: 2012
Location: Oakdale, Minnesota
Posts: 527
Boe has much to be proud ofBoe has much to be proud ofBoe has much to be proud ofBoe has much to be proud ofBoe has much to be proud ofBoe has much to be proud ofBoe has much to be proud ofBoe has much to be proud ofBoe has much to be proud of
Re: Greasing "open" gearboxes

Most of the grease is going to come out of the sides of the gearbox; in the last few years I can't remember any grease coming out of the front or back. You can put something around the gearbox to keep debris out and grease in, or you can run grease through the gearbox for a while until it isn't spraying grease anywhere and then install it into the robot.
__________________
2014 IRI-Quarterfinalists (Thanks 368, 1477, 233)
2014 Minnesota State Championship-Winner (Thanks 2052, 4778)
2014 Archimedes Division-Quaterfinalists (Thanks 399, 2056, 2834)
2014 North Star-Semifinalists (Thanks 967, 4607)-Creativity Award-Safety Award
2014 Northern Lights-Winners (Thanks 359, 2502)-Excellence in Engineering-Safety Award
2013 Minne-Mini-Winners (Thanks 2169, 3883, 4239)
2013 MRI-Winners (Thanks 2052, 3130, 3313)
2013 MN State Fair-Winners
2013 IRI-Participant
2013 Minnesota State Championship-Winners (Thanks 2052, 4607)
2013 Galileo Division-Finalists (Thanks 2169, 3284)
2013 North Star Regional-Team Spirit Award-Winners (Thanks 967, 4607)
2013 Northern Lights Regional-Entrepreneurship Award-Quarterfinalists (Thanks 3130, 1675)
2012 North Star Regional-Creativity Award-Quarterfinalists (Thanks 2549, 3130)
2012 Lake Superior Regional-Coopertition Award-Quarterfinalists (Thanks 1625, 2957)
  #4   Spotlight this post!  
Unread 27-10-2014, 11:38
Aren Siekmeier's Avatar
Aren Siekmeier Aren Siekmeier is offline
on walkabout
FRC #2175 (The Fighting Calculators)
Team Role: Mentor
 
Join Date: Apr 2008
Rookie Year: 2008
Location: 대한민국
Posts: 735
Aren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond reputeAren Siekmeier has a reputation beyond repute
Re: Greasing "open" gearboxes

If a significant amount of grease is being thrown from your gearbox, you don't need it. You have too much grease. You only need to apply a fingertips-worth to a spot on each gear, and then spin the gears a bit to spread it evenly.
  #5   Spotlight this post!  
Unread 27-10-2014, 11:44
Unsung FIRST Hero Woodie Flowers Award
Chris Fultz Chris Fultz is offline
My Other Car is a 500 HP Turbine
FRC #0234 (Cyber Blue)
Team Role: Engineer
 
Join Date: Jan 2002
Rookie Year: 1942
Location: Indianapolis, IN
Posts: 2,837
Chris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond repute
Re: Greasing "open" gearboxes

we cover ours with duct tape - this does two things - it keeps the grease in, and it keeps the dirt and other damaging materials out.
__________________
Chris Fultz
Cyber Blue - Team 234
2016 IRI Planning Committee
2016 IndyRAGE Planning Committee
2010 - Woodie Flowers Award - Championship
  #6   Spotlight this post!  
Unread 27-10-2014, 11:45
Jon Stratis's Avatar
Jon Stratis Jon Stratis is offline
Electrical/Programming Mentor
FRC #2177 (The Robettes)
Team Role: Mentor
 
Join Date: Feb 2007
Rookie Year: 2006
Location: Minnesota
Posts: 3,791
Jon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond reputeJon Stratis has a reputation beyond repute
Re: Greasing "open" gearboxes

Quote:
Originally Posted by Boe View Post
Most of the grease is going to come out of the sides of the gearbox; in the last few years I can't remember any grease coming out of the front or back. You can put something around the gearbox to keep debris out and grease in, or you can run grease through the gearbox for a while until it isn't spraying grease anywhere and then install it into the robot.
We did this with the KOP gearboxes lady year-round greased them then let them run for a couple of minutes before installing them on the robot. We ended up taping over the ends anyways to keep debris out as well.
__________________
2007 - Present: Mentor, 2177 The Robettes
LRI: North Star 2012-2016; Lake Superior 2013-2014; MN State Tournament 2013-2014, 2016; Galileo 2016; Iowa 2017
2015: North Star Regional Volunteer of the Year
2016: Lake Superior WFFA
  #7   Spotlight this post!  
Unread 27-10-2014, 12:42
Deke's Avatar
Deke Deke is offline
Registered User
no team (No Team)
Team Role: Engineer
 
Join Date: Dec 2013
Rookie Year: 2013
Location: Michigan
Posts: 139
Deke is a jewel in the roughDeke is a jewel in the roughDeke is a jewel in the roughDeke is a jewel in the rough
Re: Greasing "open" gearboxes

We used this last year:

http://www.mcmaster.com/#8710t44/=uc2zsu

Had to reapply a couple of times, but it dried on and didn't 'fling' off the gears. We applied it a few times through the year, but it worked well.
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 01:52.

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