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Opportunities for the Application of Reversing Planetary Transmissions (CROSBI ID 718110)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Vrcan, Željko ; Troha, Sanjin ; Stefanović-Marinović, Jelena ; Marković, Kristina Opportunities for the Application of Reversing Planetary Transmissions // Latin American International Conference on Natural and Applied Sciences-II Proceedings Book / Prats, Germán M. ; Hernández, Francisca S. ; Renteria Ramos, Rafael R. et al. (ur.). Bogota: Universidad Abierta y a Distancia UNAD, Colombia, 2022. str. 462-469

Podaci o odgovornosti

Vrcan, Željko ; Troha, Sanjin ; Stefanović-Marinović, Jelena ; Marković, Kristina

engleski

Opportunities for the Application of Reversing Planetary Transmissions

The application of planetary gear trains (PGTs) offers numerous benefits in comparison to conventional gear trains. For example, a multi-carrier planetary gear train may be built by linking the shafts of different component PGTs, and several transmission ratios may be achieved by providing links between different elements of the component PGTs. Furthermore, another specialty of PGTs is the possibility to change the transmission ratio under load by means of a brake or clutch acting on a gear train component. This can be easily exploited to create rugged and reliable transmissions for internal combustion powered modern transport applications. For example, railway vehicles are expected to be capable of moving in both directions at the same speed, while ships and boats must be able to reverse under load without engine shutdown. PGTs can be applied in the form of an output or main reduction gearbox providing two equal transmission ratios, however with the output shaft rotating in different directions. Designs using multiplate clutch-type brakes for should be given priority when compactness and reliability are a concern, however band brakes should be given priority for ease of maintenance. The focus of this paper is on two-carrier, two-speed PGTs consisting of two coupling shafts and four external shafts, as the most notable characteristic of this type of compound PGT is the possibility to change the transmission ratio under load. A method for the quick determination of the structure and important basic parameters of two-speed planetary gear trains that meet the predefined transmission requirements is presented in this paper, together with an overview of the computer program DVOBRZ purposefully developed for this matter. A numerical example of the procedure is provided, dealing with the application of a two-speed PGT as a main reduction and reversing gearbox.

marine reduction and reverse gearbox ; mechanical power transmission ; planetary gearbox ; railway vehicle transmission

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Podaci o prilogu

462-469.

2022.

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objavljeno

978-625-8377-41-5

Podaci o matičnoj publikaciji

Latin American International Conference on Natural and Applied Sciences-II Proceedings Book

Prats, Germán M. ; Hernández, Francisca S. ; Renteria Ramos, Rafael R. ; Cuevas Álvarez, María C.

Bogota: Universidad Abierta y a Distancia UNAD, Colombia

Podaci o skupu

Latin American International Conference on Natural and Applied Sciences-II

predavanje

05.04.2022-07.04.2022

Bogotá, Kolumbija

Povezanost rada

Strojarstvo, Temeljne tehničke znanosti