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.

Issue Section:
Technical Briefs
Keywords:
bending, design engineering, gears, geometry, machinery production industries, machining, mechanical contact, sliding friction, tooth profile, gear drive, sliding coefficient, mathematical model, meshing theory
Topics:
Design, Gears, Mechanical drives, Gear teeth, Bending (Stress)
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