×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Gear design

Gear design

Gear design

(OP)
Hi all,
I need to rerate the Gear box product from strength point and tell our counter part, what torque does this gear box can with stand.
I understand GEAR boxes fail by wear and pitting and other means. My task is to tell what torque does this gear box can with stand. Once I give those numbers thier task is to reevaluate the product for lubrication failure, misalignment etc and rerate their product.

Gear Box consists of couple of different sizes of gears, pinions and shafts. My understanding is to take each component and evaluate its strength, Pick the weakest part in the assembly and tell this is what your product can with stand.

Or do i need to do an assembly analysis of different gears and to find out the weakest link and tell the product will fail at this torque.
I am not redesigning the product. I am just trying to understand what torque it is capable of with standing.
Nieghbouring parts add stiffness to a component, and could increase the load capabiltiy of the parts, Will a Gear be able to with stand more force in an assembly than it alone can take, Esp when it is about to move away from the contact with the mating gear.
So i feel, just do the analysis on a single component and tell the gear will with stand this much amount of torque is sufficient. Ami correct in my understanding.
Regards
Kamalakar

RE: Gear design

(OP)
If the gear is the first gear or a middle one in a gear train, we need to scale up the torque according to the gear train ratio and arrive at the maximim torque.

RE: Gear design

You could discover the weak link by a progressive increase in load up to failure. This is assuming you have limited analysis resources. Other challenges could by overtemp operations, minimal lube, operation into stall, etc.

The wrong thing to do is overload statically. The gearbox should be tested in a manner similar to intended use.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources