Browse > Article
http://dx.doi.org/10.7735/ksmte.2015.24.2.231

Contact Stress of Slewing Ring Bearing with External Pinwheel Gear Set  

Kwon, Soon-man (School of Mechanical Engineering, Changwon National University)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.24, no.2, 2015 , pp. 231-237 More about this Journal
Abstract
The pin-gear drive is a special form of fixed-axle gear mechanism. A large wheel with cylindrical pin teeth is called a pinwheel. As pinwheels are rounded, they have a simple structure, easy processing, low cost, and easy overhaul compared with general gears. They are also suitable for low-speed, heavy-duty mechanical transmission and for occasions with more dust, poor lubrication, etc. This paper introduces a novel slewing ring bearing with an external pinwheel gear set (e-PGS). First, we consider the exact cam pinion profile of the e-PGS with the introduction of a profile shift. Then, the contact stresses are investigated to determine the characteristics of the surface fatigue by varying the shape design parameters. The results show that the contact stresses of the e-PGS can be lowered significantly by increasing the profile shift coefficient.
Keywords
Slewing ring bearing; Pinwheel; Cam pinion; External pinwheel gear set (e-PGS); Profile shift coefficient;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kwon, S. -M., Kim, C. H., 2013, Slewing Ring Bearing having Pin Wheel, KR Pending Patent: 10-2013-0121885.
2 Litvin, F. L., Fuentes, A., 2004, Gear Geometry and Applied Theory, Cambridge University Press, London.
3 Veja, A. D., 2012, Contributions Concerning the Roller Gearing Tooth Profile Generation, BJMT, 2:1 73-77.
4 Honda, H., Makino, H., 1994, Research on the Trochoidal Gears (1st Report), J. of JSPE, 60:7 949-953.
5 Honda, H., 1995, Research on the Trochoidal Gears (2nd Report), J. of JSPE, 61:2 208-212.
6 Nam, H. C., 2013, A Study on Tooth Profile Design for Rotary Motion Gear System based on Roller Gear Mechanism, A Thesis for a Doctorate, Changwon National University, Republic of Korea.
7 Kwon, S.- M., Kim, M. S., Shin, J. -H., 2008, Analytical Wear Model of a Gerotor Pump without Hydrodynamic Effect, JSME JAMDSM, 2:2 230-237.   DOI
8 Kwon, S. -M., 2014, PGS V2, Korea Copyright Commission, C-2014-018723.
9 Budynas, R. G., Nisbett, J. K., 2011, Shigley's Mechanical Engineering Design, 9th ed., McGraw-Hill, New York.
10 Morrison, R. A., 1968, Load/Life Curves for Gear and Cam Materials, Machine Design, 40:August 102-108.
11 Guideline DG03, 2009, Wind Turbine Design, Yaw & Pitch Rolling Bearing Life, NREL, Colorado, USA.
12 Buckingham, E., 1949, Analytical Mechanics of Gears, McGraw-Hill, New York.