Since the invention of the involute curve and the applicationthereof to gearing, the world has embraced and developed this typeof gear tooth form to a very high degree of engineering andmanufacturing excellence. Improvements in recent years have beenrelatively modest, since this form has been so rigorously studiedand applied. The long term adoption of the involute is rooted inlarge part to the simplicity of its tools and field operation.Straight sided tools and conjugacy, even with limited changes incenter distance, were consistent with the industrial revolution ofthe 18th, 19th, and 20th centuries, and the mechanically basedmachine tools of these ages. The recent ubiquitous nature ofcomputers and CNC machinery exacerbates the cost effective freedomto optimize many parameters affecting gear tooth forms. Convoloidis a new gear tooth form capable of increasing torques 20% to 35%over those of conventionally designed involute pairs. The form iscomputer optimized, is compatible with the world’s existing capitalasset infrastructure, and mirrors the manufacturing sequences,processes and basic production costs of involute gears. The resultis a major enhancement in gear drive system power density and costreduction for a given power requirement. Convoloid gearing istotally scalable and is used in parallel axis helical, planetary,and other configurations. The design, rating (surface durabilityand bending), flash temperature analysis and other importantperformance criteria for this technology along with themanufacturing and inspection protocols in keeping with AGMA and ISOspecifications will be discussed. Test results confirming many ofthe superior load carrying characteristics of this tooth form willbe presented. Side by side comparisons of involute versus Convoloiddesigns and test performance results will be presented confirmingthe validity of the theory.
- Edition:
- 11
- Published:
- 10/01/2011
- Number of Pages:
- 18
- File Size:
- 1 file , 490 KB
Reviews
There are no reviews yet.