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Gear transmission is widely used in the industrial field, including aerospace, automotive, shipbuilding, metallurgy, construction machinery and other requirements of the development, with the machinery and equipment to the heavy, large-scale, high-speed direction, machinery and equipment are constantly improving improve to adapt to the ever-changing requirements of the development. Gear transmission as the main transmission part of the machinery and equipment also facing continuous improvement to improve the smooth transmission, high load carrying capacity, a large degree of coincidence, long life, high reliability is the gear an important development trend, There is an urgent need to improve the performance and efficiency of the gear contact, in order to meet the needs of the industrial sector. Gear shape, location and size of the contact zone will be directly reflected the performance of the gear pair contact. So contact performance to improve gear must first obtain the appropriate form of the contact area, location and size. This project is to study a new type of gear - logarithmic spiral bevel gear, to study the shape, location and size of the tooth surface contact area. Logarithmic spiral bevel gear as a logarithmic spiral gear teeth to the line, put forward a new type of logarithmic spiral bevel gear drive form, and systematic study of the logarithmic spiral bevel gear tooth surface contact performance, providing updates on number of spiral bevel gear tooth contact analysis theory, the ideal logarithmic spiral bevel gear of the location, shape and size of the contact area. And a sample of logarithmic spiral bevel gear tooth contact detection experiments, the location, shape and size of the contact area of ??the logarithmic spiral bevel gear results were obtained through experiments. The research method for solving the logarithmic spiral bevel gear contact area, any one tooth surface on the basis of the model of logarithmic spiral bevel gear meshing, to obtain the coordinate value, and then combined with the elliptic function method, found solving method of the logarithmic spiral bevel gear contact area, and the boundary of the contact area of ??the judgment and cutting, the location, size and shape of a logarithmic spiral bevel gear tooth surface contact area. This subject logarithmic spiral bevel gear tooth contact detection method based on the principle of EPG detection method, Y9550 bevel gear rolling inspection machine logarithmic spiral bevel gear the sample tooth contact area detection experiments, experiments the result of the location, shape and size of the contact area of ??the logarithmic spiral bevel gear. And the experimental results were compared with Gleason spiral bevel gear contact area and ideal logarithmic spiral bevel gear contact area, obtained the relevant characteristics of the logarithmic spiral bevel gear tooth surface contact.
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