×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Design of an advanced gearing mechanism

Design of an advanced gearing mechanism

Design of an advanced gearing mechanism

(OP)
Hi,

I have been asked to improve the accuracy of a gear system that control angle blades to perform with a micro compressor.

In the actual automated mechanism,blade adjustment works via a planetary gear. The 6 blades are connected via a crown gear.
One of the satellite gears is connected to a stepper motor, driving the assembly.

Here the problem, is the backlash between the gear wheels and the crown gear that results in large position tolerances.

I'm thinking in design a cycloid/harmonic gear train or a dual path gear train in order to increase the thickness of teeth in contact and with that
reduce the clearance between tooth space.

The problem is that cycloidal drive and the current bevel system are different in terms of orientation of the shafts ( Cycloidal is parallel and bevel is perpendicular). So I would like to know if anyone has better a solution to reduce backlash of bevel gears/crown gear system. Maybe a Spiroyd Gear System?


Any leads would be appreciated.

RE: Design of an advanced gearing mechanism

I'm only familiar with using linkages or cam slots for this purpose.

RE: Design of an advanced gearing mechanism

Is there are reason you're not holding these angles using servomotors that are specifically designed for minimal backlash?

I'm sure there are answers but I would exhaust commercial options first and enjoy the fruits of their intellectual labor.

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! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close