KUALA LUMPUR, May 20 (Bernama) -- Polyplastics Co Ltd, a global supplier of engineering thermoplastics, is offering a range of design tips and techniques to help manufacturers reduce noise in helical gears made of polyoxymethylene (POM).
According to a statement, Polyplastics is a leading global manufacturer of POM, under the DURACON (R) tradename, for diverse markets, including gears.
Among design findings, it is generally believed the tilt of the gear axis is an important consideration and its elimination will have positive impact on noise issues.
Polyplastics tried to verify that assumption, and actually focused on the skewed shaft angle (offset error). The company learned that noise does not necessarily worsen when the axis tilts.
Instead, Polyplastics found that noise issues arise when changing the centre distance, depending on whether there is a skewed shaft angle.
Polyplastics examined the impact with an angle of 0 deg. Noise levels are lowest in the area where an increase in the centre distance is between 0 and 0.6 mm, and then flattens out.
The company also notes that helical gears have a phenomenon called an overlap ratio.
More details at https://www.polyplastics.com/en/support/gear/gear_noise/index.html
-- BERNAMA
No comments:
Post a Comment