A Method for the Preliminary Geometric Design of Gear Tooth Profiles With Small Sliding Coefficients

This paper proposes a method of the preliminary geometric design for gear tooth profiles based on given sliding coefficients. A design procedure is developed and a simplified derivation of the mathematical model of tooth profiles is presented. The characteristics of the gear drive designed by the proposed method are analyzed. A comparison study on the sliding coefficient with the involute gear drive is also carried out in this work. The effects of parameters, including tooth number and modulus, on the characteristics of the gear drives are studied. The contact and bending stresses of this new drive are also analyzed. A manufacturing method of the proposed gear is studied, and a simulation of the machining process demonstrates its feasibility. The results show that the designers can design tooth profiles according to required sliding coefficients by the proposed method.

[1]  Chung-Biau Tsay,et al.  Contact Characteristics of Circular-Arc Curvilinear Tooth Gear Drives , 2009 .

[2]  Yicheng Zhang.  STUDY ON NONSTEADY STATE EFFECTS OF ELASTOHYDRODYNAMIC LUBRICATION OF SPUR GEAR TEETH , 2000 .

[3]  T. Komori,et al.  A new gears profile having zero relative curvature at many contact points (LogiX tooth profile) , 1990 .

[4]  XU Xiao-guang.  The Calculating Method of Sliding Wear on Tooth Outline , 2001 .

[5]  Fong Zhang-Hua,et al.  Mathematical model for parametric tooth profile of spur gear using line of action , 2002 .

[6]  Chung-Biau Tsay,et al.  Computerized Tooth Profile Generation and Analysis of Characteristics of Elliptical Gears with Circular-Arc Teeth , 2004 .

[7]  Xuncheng Wu,et al.  STUDY ON THE FUNCTION-ORIENTED DESIGN OF POINT-CONTACT TOOTH SURFACES , 2000 .

[8]  E. Buckingham.  Analytical mechanics of gears , 1949 .

[9]  Chung-Biau Tsay,et al.  Tooth profile design for the manufacture of helical gear sets with small numbers of teeth , 2005 .

[10]  Ying-Chien Tsai,et al.  Design of high-contact-ratio spur gears using quadratic parametric tooth profiles , 1998 .

[11]  R G Munro,et al.  A systematic approach to profile relief design of low and high contact ratio spur gears , 1999 .

[12]  Domenico Mundo,et al.  New developments in variable radius gears using constant pressure angle teeth , 2005 .

[13]  Alexander L. Kapelevich,et al.  Geometry and design of involute spur gears with asymmetric teeth , 2000 .

[14]  Giulio Di Francesco,et al.  Structural Analysis Of Asymmetrical Teeth : Reduction Of Size And Weight , 1997 .

[15]  Shih-Hsi Tong,et al.  Design of new tooth profiles for high-load capacity gears , 2001 .

[16]  Lin Jing.  A Pressure Angle Function Method for Describing Tooth Profiles of Planar Gears , 2009 .