20.500.12556/RUL-107640 Konstrukcija kontra-rotacijskega gonila za pogon radijsko vodenih letal Construction of a contra-rotating drive for propulsion of radio controlled aircraft Ob vrtenju propelerja se pojavijo nezaželeni vplivi: učinek momenta propelerja, učinek vijačnice, žiroskopski učinek in drugi. Da olajšamo (ali celo izničimo) te stranske učinke, na isto os vgradimo dva propelerja, vrteča se vsak v svojo smer. To delo se ukvarja s konstrukcijo zobniškega gonila, ki to omogoča in bi ga lahko vgradili na radijsko vodeno akrobatsko letalo. Izbrali smo koncept rešitve z notranjo in zunanjo zobniško dvojico ter ga ovrednotili glede na motor, ki ga imamo na voljo. Ugotovili smo, da je naš dizajn možno izdelati, vendar so zastavljeni cilji (masa 850 g, cena pod 600 EUR, kompaktnost) težko dosegljivi z motorjem, ki ga imamo na voljo. Ocenili smo, da bi bilo z uporabo primernejšega motorja z manjšim številom vrtljajev zastavljene cilje bistveno lažje realizirati. As a propeller spins, unwanted side effects can occur: propeller torque effect, corkscrew effect, gyroscopic effect, etc. To compensate (or maybe even eliminate) these side effects, two propellers can be mounted, each spinning in its own direction, on the same axis. This paper is dealing with a construction of a gear drive which enables this and could be mounted on an acrobatic radio-controlled aircraft. We chose a concept of solution with an internal and external gear pairing and evaluated it considering the motor we have available. We discovered that our design could be manufactured, but our set goals (mass 850g, price under 600 EUR, compact size) were difficult to achieve with the motor we have available. We concluded that we would have to take into account a more suitable motor with fewer revolutions per minute. radijsko-vodena letala propelerski pogoni vrtenje propelerjev notranja ozobja poševna ozobja profilni pomiki zobniki gredi ležaji radio-controlled aircraft propeller propulsions propeller spinning internal gearings helical gearings profile shifts gears shafts bearings true false false [T. Mencin] Slovenski jezik Angleški jezik Zaključna naloga 2019-05-09 07:45:03 2019-05-09 07:45:15 2023-12-13 08:14:24 0000-00-00 00:00:00 2019 0 Ljubljana 0 XV, 49 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 629.7:623.746(043.2) 212259 16608539 3456.pdf 3456.pdf 1 7DD15F45A42AFFF9726F74C76DCA1AC2 441cfada531d9c64e88e304dfaccdf024d5e2b4c8f8f099d52030661546ee5f3 7977ff41-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=118495 3457.pdf 3457.pdf 1 83AB5D21606683A550D1DF69888700C4 b593f538bade2d183ac6b565648e66f8eb8c53b729cf8bd0396da3a17040ca2b 7988b62f-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=118496 Fakulteta za strojništvo 0 0 0