Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)
-   -   2.5" CIM Motor stops when climbing (http://www.chiefdelphi.com/forums/showthread.php?t=154711)

serdaruluer 04-02-2017 11:23

2.5" CIM Motor stops when climbing
 
Is the CIM motor enough to lift robot? After rope winds our motor stops and robot can not go up.

Christopher149 04-02-2017 11:28

Re: 2.5" CIM Motor stops when climbing
 
What gear reduction (if any) do you have connected to the CIM? What drum/winch diameter?

serdaruluer 04-02-2017 11:33

Re: 2.5" CIM Motor stops when climbing
 
Any.

s_forbes 04-02-2017 11:34

Re: 2.5" CIM Motor stops when climbing
 
Can you post a picture of your robot? It would help us figure out a solution.

A CIM motor is plenty powerful enough to make the robot climb.

serdaruluer 04-02-2017 11:42

Re: 2.5" CIM Motor stops when climbing
 
How to send photo easily? Only link?

Ether 04-02-2017 11:44

Re: 2.5" CIM Motor stops when climbing
 
Quote:

Originally Posted by serdaruluer (Post 1640277)
Any.

The problem may be inadequate gear reduction.

But you need to provide more detail if you want more definitive help.

Describe the complete drivetrain from the CIM to the winch, including gear reductions, winch diameter, and rope diameter.

And post a couple of well-focused pictures.

You can attach them to your CD post, or you can upload them to imgur.com and provide links.




serdaruluer 04-02-2017 11:50

Re: 2.5" CIM Motor stops when climbing
 
https://drive.google.com/file/d/0B0L...ew?usp=sharing

serdaruluer 04-02-2017 11:53

Re: 2.5" CIM Motor stops when climbing
 
https://drive.google.com/file/d/0B0L...ew?usp=sharing

Ether 04-02-2017 12:04

Re: 2.5" CIM Motor stops when climbing
 
Quote:

Originally Posted by serdaruluer (Post 1640293)

It looks like you have no gear reduction.

What is the diameter of the winch?

What is the diameter of your rope?



s_forbes 04-02-2017 12:06

Re: 2.5" CIM Motor stops when climbing
 
That works, thanks!

It looks like you need a larger gear reduction than what you have right now. If you can put a gearbox between the CIM and the climbing shaft, then the climbing shaft will have more torque. This would probably work: http://www.andymark.com/ToughBox-p/am-toughbox.htm

I am not sure how long shipping takes to your part of the world. Do you have any other gearboxes, or know teams in your area that might have old gearboxes?

logank013 04-02-2017 13:10

Re: 2.5" CIM Motor stops when climbing
 
You will need a gear reduction of some sort. Our robot for 2016 used about a 35:1 gear reduction or so for our winch. We also used only one CIM and it worked perfectly fine for us. We usually were able to climb in about 4 to 5 seconds after the hook was put on the bar.

Jacob Plicque 04-02-2017 13:16

Re: 2.5" CIM Motor stops when climbing
 
A 12.75 GR AM Toughbox with a 150# robot, 2"dia winch, and a CIM motor will operate at over 60A of current. It is likely that a 40A breaker will trip during a 5 second climb. Try a GR ratio of ~25:1

Ether 04-02-2017 13:19

Re: 2.5" CIM Motor stops when climbing
 
Quote:

Originally Posted by logank013 (Post 1640327)
You will need a gear reduction of some sort. Our robot for 2016 used about a 35:1 gear reduction or so for our winch.

The appropriate gear reduction depends on the winch diameter and -- in some designs -- on the rope diameter.

That's why I've asked the OP to tell us their winch diameter and rope diameter.



serdaruluer 04-02-2017 15:31

Re: 2.5" CIM Motor stops when climbing
 
Winch diameter is 3cm and rope diameter is 1,5cm.

serdaruluer 04-02-2017 15:36

Re: 2.5" CIM Motor stops when climbing
 
Can we find another solution but using gearbox? On the motor side small gear, on the shaft side big gear possible?


All times are GMT -5. The time now is 19:52.

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