Mechanical Clamps in Bias

Posted in: , on 7. Feb. 2010 - 17:47

Dear Experts,

Many fabric belts hot / cold joints are done in bias ( i.e., the splicing area is in rhomboid shape). The reason is said that " to take the joints gradually on the drive pulley".

Have you ever seen the mechanical joints done in the above similar fashion? Other than having the above advantage, the biased length will be more than the width of the conveyor. We may accommodate more clamps. So load carrying capacity per clamp will also increase.

Your reply please.

Regards,

Re: Mechanical Clamps In Bias

Posted on 8. Feb. 2010 - 06:09

The main reason for a bias splice in hot or cold vulcanizing is to make them stronger - the area required for the vulcanization is greater i a bias than in a square joint and therefore will be stronger. The proper method of the top joint being toward the tail is so that there is no leading edge going into a scraper that would cause the joint to start separating.

I have never seen mechanical joints done in a bias and I do not see any advantage to it. Maybe some have tried it and can share their knowledge on it.

It will only be as strong as the clips being used.

Gary Blenkhorn
President - Bulk Handlng Technology Inc.
Email: garyblenkhorn@gmail.com
Linkedin Profile: http://www.linkedin.com/in/gary-blenkhorn-6286954b

Offering Conveyor Design Services, Conveyor Transfer Design Services and SolidWorks Design Services for equipment layouts.

Re: Mechanical Clamps In Bias

Posted on 8. Feb. 2010 - 03:14

Indeed Sganesh.. this is done.

(At least it was, but I haven't seen it for a while.)

There was a design of mechanical clipped splice done by Flexco.

They called it the Flexco "Wedlock Vee" and being a deep vee shape used loads of clips.

They claimed it increased the splice strength considerably.

Cheers

LSL Tekpro

Graham Spriggs

Re: Mechanical Clamps In Bias

Posted on 8. Feb. 2010 - 03:37

Yes Graham the wedlock is one method that can be used. But sganesh is referring to it being done on the same bias as used with vulcanizing.

I have never seen it done that way.

Here is the Flexco Wedlock that Graham is referring to.

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Gary Blenkhorn
President - Bulk Handlng Technology Inc.
Email: garyblenkhorn@gmail.com
Linkedin Profile: http://www.linkedin.com/in/gary-blenkhorn-6286954b

Offering Conveyor Design Services, Conveyor Transfer Design Services and SolidWorks Design Services for equipment layouts.

Re: Mechanical Clamps In Bias

Posted on 9. Feb. 2010 - 10:21

Flexco does offer splices on a 45 degree bias. This is not done to make a stronger splice but to allow the use of 25% smaller diameter pulleys. Simply putting a mechanical splice on this bias does not increase its strength.

Kevin Finnegan

Flexco

Re: Mechanical Clamps In Bias

Posted on 10. Feb. 2010 - 02:35

Dear all,

Thanks a lot for all of your replies and sharing your knowledge.

Referring to Mr.Gary's first post, I feel the biased joints will be having less area than those of joints with straight joints of the same belt.

Regards,