Abstract
According to generating principle of spiral bevel gear and space meshing theory, formation theory of generation line of tooth surface about skew bevel gears is studied. A new processing method of tooth surface with the generation line as chord of face circular cutters is put forward. Moving process model of milling processing with skew bevel gears is built, and profile of the gears can be machined using three axes linkage method based on the model. Machining test of the gears is carried out on experiment platform designed. Furthermore, 3D points cloud model of tooth surface are calculated in light of mathematical model of the tooth surface which has been established, and datum of mesh nodes on actual tooth surface are collected. Then surface errors is evaluated by normal vector equation of the tooth surface which has been developed. Finally, this method is proved to be effective and feasible.
Highlights
Spiral bevel gears are needed to transfer power and motion between intersecting axes and are widely used in the equipments of aviation, navigation and national defense and mechanical products such as vehicles, machine tools, engineering mechanics[1]
Based on the above expression, profile of gears surface is formed accurately in accord with surface generating principle by the milling cutters which processes gears along tracing of generating line ML that is generation line, if the generation line is as chord of face circular milling cutters
When the base cone rotate ω (t) around axis of itself, spreading movement of tooth surface established can be decomposed that: base cone rotates with angular velocity vector ωt, at the same time generation line ML on the plane Q rotate around itself axis at the angle rate vector of ωb relative to space coordinate
Summary
Spiral bevel gears are needed to transfer power and motion between intersecting axes and are widely used in the equipments of aviation, navigation and national defense and mechanical products such as vehicles, machine tools, engineering mechanics[1]. Transmission ratio is not constant; Second, modification and adjustment of tooth surfaces are complex; designing and manufacturing need to take a longer period and gears can not be interchanged unless in the same batch. The new method that is put forward can be used to process ideal spherical involute spiral bevel gears that the transmission ratio is constant and gears can be interchanged even in different batches. This method makes the calculation and adjustment of machine tools settings relatively simple, the processing efficient relatively high. It is proved to be effective and feasible by the experiments
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
