Study on Tooth Profile of Silent Chain Based on Friction Reducing

Abstract:

The internal and outside tooth profile of the link plate in the new silent chain can simultaneously mesh with the sprocket when the tight side of silent chain is secant with the sprocket pitch circle in the traditional silent chain drive. The root of the outside tooth profile of the new silent chain is made up of the arcs and can mesh with the sprocket in order to reduce friction. Through the investigation on the transmission progress of new silent chain mechanism, the movement trajectory of the chain link and the sprocket is achieved. The result shows that the conjugate meshing, the small polygon action and the meshing friction reducing can be achieved through reasonably designing the tooth profiles of the link plate and the sprocket.

• Periodical: Advanced Materials Research (Volumes 694-697)
• Pages: 255-258
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.694-697.255
• Online since: May 2013
• Authors: Yun Na Xue, Xue Hui Shen
• Keywords: Friction Reducing, Polygon Action, Silent Chain, Tooth Profile

References

[1] Z.F.ZHENG,Y.H.WANG, and B.H.CHAI, Chain drive, Beijing: Machinery Industry Press, China,1984(In Chinese)

[2] A.M..McCarty, "Higher load and speed limits for silent chain drives", Machine Design,Vol.12, 1978,p.121.

[3] K.R.ZHANG, "Approximately conjugate engagement of a new silent chain", Machine Design and Research,Vol. 3, 1996, pp.31-33. (In Chinese)

[4] X.X.MENG,Z.M.FENG, "Analysis on the meshing simulation of a new silent chain by ADAMS" , Machine Design and Research, Vol.20, Apr. 2004 ,pp.31-32. (In Chinese)

[5] Y.N.XUE, Meshing Theory and Application of Dual Meshing Silent Chain Drive, Doctor dissertation, Jinan, Deptment of Mechanical Engineering, Shandong university, 2007. (In Chinese)

[6] H.L.YIN,B.X.ZHU, Design of Indexing mechanism, Shanghai: Shanghai Science and Technology Press,China 1996. (In Chinese)

[7] Y.N.XUE, Y.WANG, X.L.WANG, "Engagement theory of silent chain mechanism with involute tooth profile"．Journal of Jiangsu University of science and technology，Vol.28, Feb.2007, pp.104-107．(In Chinese)

[8] LIU L P. Method and research of plane analytic geometry [M]. Beijing：Beijing University Press, 1999. (In Chinese)

[9] Huang XK,Huang XP, Huang AP. Gear and rack with pure rolling contact and cutting tool. Beijing: China's invention patent bulletin (Application number 99114349. 3) ,2001 ,17(6) (In Chinese)

[10] CHEN C G, TANG Y Y, WU H Y. Differential geometry and its application in mechanical engineering [M]. Harbin：Harbin Institute of Technology Press, 1998. (In Chinese)