Research on Gear Shaving for Gears with Tooth Modifications
|關鍵字:||齒輪齒面修整;刮齒;gear tooth modification;gear shaving|
Gear tooth modification, also called gear tooth crowning, can cause great improvement of gear performance. Gear shaving is one of the most efficient and economical process for gear finishing after the rough cuttings of hobbing or shaping, in which transverse shaving and plunge shaving are the most widely adopted methods. Through gear shaving, tooth crowning can be achieved very efficiently. This dissertation has investigated gear tooth crowning induced by transverse and plunge gear shaving. For transverse gear shaving, the influences of machine setting parameters and cutter assembly errors have been observed. Design optimization for robustness of gear transmission error has also been accomplished, in which the transmission error has been greatly improved. For plunge gear shaving, in order to manufacture gears with tooth crowning, a method of design optimization is proposed to reduce the topographic error between the theoretical and the ground shaving cutter tooth surfaces, in which the analytical description of the gear with tooth crowning is constructed, and then the grinding wheel profile is parameterized and optimized. The cutting trace of plunge shaving cutter has also been analyzed by optimizing the arrangement of cutter serration, so that the cutting-down ratio can be reduced and therefore the cutting efficiency can be improved.
|Appears in Collections:||Thesis|
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