Research On The Non-orthogonal Face Gear Drive Design

Gear transmission is one of the most important mechanical transmission, and the face gear transmission is a new type of gear transmission form, it has many special advantages. In foreign countries, surface gear transmission technology re-search early have been influenced by the attention of experts and scholars, and theory research and application has been thoroughly, and successfully used in aer-ospace, civil many fields. Due to the surface of gear transmission military back-ground, has been formed technical barriers. In China, the face gear later start, the technology is relatively backward, less practical application.The non-orthogonal face gear is a deeper exploration of the orthogonal face gear drive form.Non-orthogonal face gear, due to its special form of the tooth sur-face and the transmission angle, designing and processing more difficult. The form of research and exploration of non-orthogonal angle for45°,for exam-ple.Transmission design methods of the non-orthogonal face gear were studied.Face gear tooth surface model generation principle mainly has two kinds, one is the geometric theory analysis and derivation of mesh equations, using numerical methods to discrete points of the face gear tooth surface of the face gear, and finally by the interpolation method for tooth surface, the method, tedious process. The other is based on the face gear shaper processing envelope shaper cutters, face gear tooth surface is generated by three-dimensional software, the process of the modeling method is simple. This topic is based on the principle of the above-mentioned second, focusing on non-orthagonal face gear design.The main contents of this paper:The practical application of a non-orthogonal face gear drive Vice for example, Analysis of the formal features of the face gear drive and deduced the calculation to avoid undercutting and tooth tips harpened teeth wide range. Equation of the non-orthogonal face gear tooth surface have been derived; Based on the face gear point contact theory.The use of the conjugate relationship of machining cylindrical gear shaper cutters and the non-orthogonal face gear, in UGNX7.0environment, Generates the face gear tooth curve, pass through discrete points of the tooth curve to build the non-orthogonal surface of the tooth surface model, and then generate a solid model of the non-orthogonal face gear. CNC machining methods to complete a non-orthogonal surface gears processing, assembly and the actual transmission experiments on the non-orthogonal face gear, design method was validated.