In fact, all kinds of equipments and tools developed in the world are the extension of human brain and limbs. They are used to realize the transform and transmission of force and energy,to reconstruct the nature, serve the human being through certain function structure forms and certain function curves. For transmission machines, the gear transmission structure is the most popular. The direct factor affecting gear's transmission performance is the form of gear tooth profile. So, the better performance of this kind of machine must ask people to do some further research for the form of gear tooth profile.In the early 1990, a new type of gear named "LogiX" gear for the purpose of improving some demerits of W-N (Wildhaber-Novikov) and involute gears was put forward. The profile of this type of gear is constructed by many different minute involute curves. Because of having zero relative curvature at many contact points for LogiX tooth profile, its surface durability and carrying capacity are improved much more than ordinary simplex involute gear. In addition, the gear teeth value of LogiX gear can be selected to 3~4, more smaller than standard involute gear. So, bigger ratio's transmission can be realized by means of the LogiX gears. Obviously, the heteromorphic functional curves including the modification of simplex standard involute gear have more important significance for the transmission of high speed, heavy load, miniaturization and long life. But, for this kind of heteromorphic functional curves including the modification of simplex involute curves, as the development of modern manufacturing technology, the traditional generation method isn't be applicable, and more newer figuration principle need to be found. .Supported by the NSF, and based on the exsisting research results, the project members have done some further systematic researches on this kind of heteromorphic functional curves about their mesh theories, generation principles and methods, CNC technologies. Following important and creative conclusions have been acquired:.The construction principle of LogiX profile had been further studied, and the form effect of LogiX gear by its every inherent parameter had been discussed. Bigger ratio's transmission design had been solved. Better performances such as lower noise, higher strength, and long life etc than standard involute gear had been proved. A new type of manufacturing method named " Generation-Rotational tangency" was put forward. Comparing with traditional generation method formed by specific cutting tools and wire EDM trajectory method normally used nowadays, this new method has many more advantages such as higher efficiency, higher manufacturing precision, higher flexibility and lower cost etc. "Two way orthogonal link-modification principle" based on standard involute gear hob was put forward to manufacture an arbitrary convex gear profile. A new hardware interpolation technology and four different subdivision principles based on phase-lock-loop circuits were presented and used for better fabrication of this kind of heteromorphic functional gear profile. The above study has great importance for the popularization of the LogiX gear and the performance improvement of power equipments such as lower noise, high precision, miniaturization, and long life etc..
以智能化、灵捷化制造系统理论为基础,研究新型LOGIX齿轮的创成技术,开发计算机数控庸と嵝源闯?LOGIIX齿形的CAD/CAM一体化硬件系统和配套软件。LOGIX复杂齿形的高效、智能、灵捷创成技术,研制用于任意齿形的通用加工工具,解决任意齿形成形难的技术难题。这不仅能大大改善机械传动的性能,而且对今后机械及机器设计小型化、灵巧化发展具有重要意义。.
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数据更新时间:2023-05-31
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