Love-joy Jaw-in-Shear couplings

[EspElement]

Hello guys, I am relatively new here. I hope to spend more time here helping and receiving advice more often. Currently i have some questions with Love-joy couplings.

I have an application where i need to remove a shaft and replace it on the fly with ease. I looked for all kinds of couplings/designs of couplings to make this easiest for my customer. I need a coupling that handles a min of 7260 in/lb of torque. This being the max output of my gear box i am using to drive it. I am interested in the LS225. Below is a link to the page.
http://www.lovejoy-inc.com/products/jaw-in-shear-couplings.aspx

Does anyone have experience with these couplings? Are they easy to interchange? Does it require a large amount of setup to replace them?

I'm hoping this is the easiest and most positive solution for my customers application.

If anyone has ideas or thoughts they are welcome here. I am open to suggestions and to discuss the design.

Attached is a picture of my application.

Thank you all!

 

[EspElement]

No one seems to have any thoughts on this?

Regards
Josh

 

[Q_Goest]

I've not used this particular one, but I've used couplings by Lovejoy and Falk, all of which were fairly easy to use. I think the primary concern in any application is to ensure the alignment of the shafts is within the acceptable tolerance limit of the coupling. Every coupling has to have the shafts within a certain angular and linear misalignment or the coupling will be damaged over time and fail. Also verify RPM and torque is below the limit for the coupling you select.

To get a better feel for the coupling, you should discuss your application directly with a manufacturer's representative. They might also give you one or loan you one to play with.

 

[EspElement]

I am working on this individually so its not a work related item. So i wouldn't get the support i would if I had a company with more order opportunities. I noticed i have been having a lot of troubles with vendors for that reason.

I like to use my vendors to help me with my designs in that case but this time I am not going to get a whole lot of support.

The max RPM will be around 10. It will certainly be a very slow application.

They recommend the load rating is 1.1 (16 hrs a day) times the calculated actual. This application is not going to be ran near 16 hours but i didn't like the recommended 1.0 for 8 hrs. The output torque I show above is the highest output by my selected reducer. So i should be okay with a 1.16 SF on that.

The angular allowance is up to ± 2°. That seems like a high tolerance for this application.

As you said, the main concern is changing this out maybe 20-30 times a day and getting it aligned properly. Is there any suggestions on ensuring this? or any ideas for the setup to make this easy?

Thanks for the reply
Regards

 

[Q_Goest]

As you said, the main concern is changing this out maybe 20-30 times a day and getting it aligned properly. Is there any suggestions on ensuring this? or any ideas for the setup to make this easy?

Wow! You're having to remove/reinstall this coupling 20 to 30 times a day? Is that what the issue is? Are there any other parts being removed/reinstalled like that? I think if that's the case, the parts have to be aligned when they're installed so that there's no need to make any adjustments. Just slap together and go. That said, I wonder if there isn't a better way to do this because pulling it out and reinstalling that often would take a lot of time that a customer of the product might not want to invest. So bottom line, is there a way to make this easier for the operator to reinstall? I don't know what your system looks like so I really can't make any suggestions.