Papers by Author: Bing Yang Wei

Abstract: Based on non-smooth impact theory, the dynamic model of spiral bevel gear is constructed by considering of input shaft angle excitation. The Maximal Lyapunov Exponents (MLEs) curves for backlash 0.10mm and 0.14mm caused by exciting amplitude are given. The simulation results indicate that gear backlash, excited amplitude and retard torque have influence on the dynamics behavior of spiral bevel gear system. The experiments show that the vibration noise is deduced after ultrasonic gear lapping.

Abstract: Based on the in-depth study the principle of NC generating gear tooth surfaces by application of the disc milling-cutter, finger milling-cutter NC generating spiral bevel gear tooth surfaces is presented in this paper. Through using a 5 shaft 4 linkage machining center, the finger milling-cutter is mounted on the imagination disc milling-cutter, in fact, 2 NC axes are used simultaneously to control the finger milling-cutter motion, imitating a blade motion of disc milling-cutter, and the motion of the blank is not change, to generate the spiral bevel gear tooth surfaces. A spiral bevel pinion is simulation machined by using machining simulation system VERICUT and the feasibility of the machining method is verified.

Abstract: The tooth face width characteristics of offset face-gear drive are considered in this paper. Base on the generation process of offset face-gear, the analytical geometry of the offset face-gear drive is derived. The conditions of undercutting and pointing for offset face-gear are studied, the expressions of inner radius and outer radius able to avoid undercutting or pointing are presented. The effects of the tooth number of the shaper, gear ratios and offset distance on undercutting, pointing and tooth face width of offset face-gear are analyzed, respectively. The expressions of approximate solution for inner radius and outer radius are provided.