Double enveloping worm gear modelling using CAD environment

• Autorzy: Połowniak Piotr , Sobolak Mariusz , Marciniec Adam

Identyfikatory

DOI

10.24425/bpasts.2021.136736

• Języki publikacji: EN

Abstrakty

EN

This study describes the methodology for modelling a worm and worm wheel of a double enveloping worm gear with the use of a CAD system. An algorithm for generating a globoid helix is described. In addition, the methodology for modelling an hourglass worm thread with a straight axial tooth profile is presented. The shape of the hourglass worm tooth end with and without a trace modification is proposed. Moreover, a method for achieving a geometric modification of the tooth trace was developed. Next, the method for modelling the worm wheel teeth is described. A solid model of using a machining worm as a hob is applied. Owing to the limitations of a CAD system, which prevents the use of a direct machining simulation, an indirect modelling method is introduced. In the present study, different CAD techniques, both solid and surface, are applied. Knowledge of the correct modelling of the hourglass worm and worm wheel facilitates their generation and conducting various analyses, including a tooth contact analysis. CAD models are utilised to analyse the geometrical contact pattern in a CAD environment, to carry out FEM analysis, to manufacture real parts or to prototype models using the technique of rapid prototyping. They can be also used as master models for measurement, e.g. in optical technics.

Słowa kluczowe

EN

globoid surface; CAD modelling; double enveloping worm gear; globoid helix; hybrid modelling; tooth trace modification

PL

powierzchnia globoidalna; modelowanie CAD; przekładnia ślimakowa z podwójnym płaszczem; helisa globoidalna; modelowanie hybrydowe; modyfikacja śladu zęba

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2021
• Tom: Vol. 69, nr 2
• Strony: art. no. e136736
• Opis fizyczny: Bibliogr. 48 poz., rys., tab.

Twórcy

autor

Połowniak Piotr

• Rzeszow University of Technology, The Faculty of Mechanical Engineering and Aeronautics, al. Powstanców Warszawy 12, 35-959 Rzeszow, Poland

• https://orcid.org/0000-0002-6199-1296

autor

Sobolak Mariusz

• Rzeszow University of Technology, The Faculty of Mechanical Engineering and Aeronautics, al. Powstanców Warszawy 12, 35-959 Rzeszow, Poland

• https://orcid.org/0000-0003-4037-5272

autor

Marciniec Adam

• Rzeszow University of Technology, The Faculty of Mechanical Engineering and Aeronautics, al. Powstanców Warszawy 12, 35-959 Rzeszow, Poland

• https://orcid.org/0000-0001-9348-8655

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).