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ELABORATION OF NONCONVENTIONAL TECHNOLOGICAL METHODS AND EQUIPMENT FOR PRECESSIONAL GEARS MANUFACTURING BY MEANS OF PLASTIC MOLDING.

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Title: ELABORATION OF NONCONVENTIONAL TECHNOLOGICAL METHODS AND EQUIPMENT FOR PRECESSIONAL GEARS MANUFACTURING BY MEANS OF PLASTIC MOLDING.
Authors: Bostan, Ion1, Dulgheru, Valeriu1, Bodnariuc, Ion1
Source: Nonconventional Technologies Review / Revista de Tehnologii Neconventionale. Sep2018, Vol. 22 Issue 3, p26-30. 5p.
Subjects: Technological innovations, Creative ability in technology, Manufacturing processes, Finishes & finishing, Molding of plastics
Abstract: The planetary precessional transmissions represent a new principled type of the mechanical transmission. Precessional planetary transmission has a number of advantages: increased bearing capacity, high mechanical efficiency, large kinematical possibilities. The mechanical efficiency of precessional planetary reducer is η=(0,85-0,95 (at transmission ratio i = 10…300). The teeth of the central wheel have nonstandard variable convex-concave profile described by parametric equations according to the fundamental theory of the precessional gear. Because the teeth of the satellite have circular profile this fact allow its relative simple fabrication. The performed analysis of the state-of-the-art in the field of technology of fabrication of the wheels of the kinematical planetary precessional transmissions, demonstrated the need to elaborate the constructive-technological procedures for decreasing of the power loses. This work contains a broad justification of the method for plastic materials selection necessary for toothed wheels fabrication. As well, the plastic mass selection and functioning criteria are presented. Also a range of adequate materials for toothed wheels manufacturing are described. [ABSTRACT FROM AUTHOR]
Copyright of Nonconventional Technologies Review / Revista de Tehnologii Neconventionale is the property of Asociatia Romana de Tehnologii Neconventionale (ARTN) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: <searchLink fieldCode="AR" term="%22Bostan%2C+Ion%22">Bostan, Ion</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dulgheru%2C+Valeriu%22">Dulgheru, Valeriu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bodnariuc%2C+Ion%22">Bodnariuc, Ion</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="DE" term="%22Technological+innovations%22">Technological innovations</searchLink><br /><searchLink fieldCode="DE" term="%22Creative+ability+in+technology%22">Creative ability in technology</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink><br /><searchLink fieldCode="DE" term="%22Finishes+%26+finishing%22">Finishes & finishing</searchLink><br /><searchLink fieldCode="DE" term="%22Molding+of+plastics%22">Molding of plastics</searchLink>
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  Data: The planetary precessional transmissions represent a new principled type of the mechanical transmission. Precessional planetary transmission has a number of advantages: increased bearing capacity, high mechanical efficiency, large kinematical possibilities. The mechanical efficiency of precessional planetary reducer is η=(0,85-0,95 (at transmission ratio i = 10…300). The teeth of the central wheel have nonstandard variable convex-concave profile described by parametric equations according to the fundamental theory of the precessional gear. Because the teeth of the satellite have circular profile this fact allow its relative simple fabrication. The performed analysis of the state-of-the-art in the field of technology of fabrication of the wheels of the kinematical planetary precessional transmissions, demonstrated the need to elaborate the constructive-technological procedures for decreasing of the power loses. This work contains a broad justification of the method for plastic materials selection necessary for toothed wheels fabrication. As well, the plastic mass selection and functioning criteria are presented. Also a range of adequate materials for toothed wheels manufacturing are described. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nonconventional Technologies Review / Revista de Tehnologii Neconventionale is the property of Asociatia Romana de Tehnologii Neconventionale (ARTN) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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      – SubjectFull: Technological innovations
        Type: general
      – SubjectFull: Creative ability in technology
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      – SubjectFull: Manufacturing processes
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      – SubjectFull: Finishes & finishing
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      – SubjectFull: Molding of plastics
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      – TitleFull: ELABORATION OF NONCONVENTIONAL TECHNOLOGICAL METHODS AND EQUIPMENT FOR PRECESSIONAL GEARS MANUFACTURING BY MEANS OF PLASTIC MOLDING.
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            – D: 01
              M: 09
              Text: Sep2018
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              Y: 2018
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