Rotor profile design for the twin-screw compressor based on the normal-rack generation method

Yu Ren Wu, Zhang Hua Fong

研究成果: 雜誌貢獻期刊論文同行評審

30 引文 斯高帕斯(Scopus)

摘要

This paper proposes a method for designing the rotor profiles of twin-screw compressors using a rack defined in the normal plane. All tooth profile segments are explicitly defined as tangent continuous in the normal section to generate a pair of conjugated rotors. Numerical comparisons between the two types of screw rotor tooth profile design, one based on a normal system, the other on an axial system, show the advantages of using the normal-rack generation method (NRGM). Most particularly, this method allows the same hob used for screw rotors to be used to manufacture mating rotors even as the helix angle varies, because in a normal system the circular pitch remains the same. The numerical results also indicate that the rotor tooth thickness generated by the NRGM rack cutter can prevent serious deflection for a variety of helix angles and tooth combinations.

原文???core.languages.en_GB???
文章編號042601
期刊Journal of Mechanical Design, Transactions of the ASME
130
發行號4
DOIs
出版狀態已出版 - 4月 2008

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