Browse > Article
http://dx.doi.org/10.7467/KSAE.2014.22.1.077

Design of Worm Gear for CVVL Paired with ZK Worm and Involute Helical Gear  

Sohn, Jonghyeon (Department of Mechanical Engineering, Pusan National University)
Park, Nogill (Department of Mechanical Engineering, Pusan National University)
Oh, Chunghan (Gasoline Engine Engineering Team, Hyundai-Motor Company)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.22, no.1, 2014 , pp. 77-84 More about this Journal
Abstract
The worm gear is used in the motor drive system of automotive CVVL because of its compactness and self-locking ability. A ZK worm and an involute helical gear can be meshed in order to reduce production cost. However, the gearing is not suitable for the reliability and the NVH problem. To improve the dynamic performances, an optimal design process is considered. The transmission error is calculated theoretically and minimized with the several gear design parameters. An inequality condition such as the teeth interference elimination is added.
Keywords
Worm gear; Transmission error; Teeth interference; NVH; Speed reducer; CVVL;
Citations & Related Records
연도 인용수 순위
  • Reference
1 W. P. Crosher, Design and Application of the Worm Gear, pp.39-61, ASME Press, New York, 2002.
2 K. P. Ha, D. Han and W. T. Kim, "Development of Continuously Variable Valve Lift Engine," KSAE2010-01-1187, 2010.
3 F. L. Litvin, Gear Geometry and Applied Theory, pp.7-137, Cambridge University Press, Cambridge, 2004.
4 AGMA, 6022-C93, Design Manual for Cylindrical Wormgearing, pp.5-8, 1993.