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undergraduate thesis
Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja
2019. urn:nbn:hr:190:437121
Košnjak, Mihael
University of Rijeka
Faculty of Engineering
Department of Mechanical Engineering Design
Section of Construction Elements

Cite this document

Košnjak, M. (2019). Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:437121

Košnjak, Mihael. "Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2019. https://urn.nsk.hr/urn:nbn:hr:190:437121

Košnjak, Mihael. "Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2019. https://urn.nsk.hr/urn:nbn:hr:190:437121

Košnjak, M. (2019). 'Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja', Undergraduate thesis, University of Rijeka, Faculty of Engineering, accessed 18 December 2024, https://urn.nsk.hr/urn:nbn:hr:190:437121

Košnjak M. Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2019 [cited 2024 December 18] Available at: https://urn.nsk.hr/urn:nbn:hr:190:437121

M. Košnjak, "Trostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja", Undergraduate thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:190:437121

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Metadata
TitleTrostupanjski reduktor sa uparenim zupčanicima prvog i trećeg stupnja
Title (english)Three stage reduction gear with paired first and third stage gears
AuthorMihael Košnjak
MentorŽeljko Vrcan (mentor)
Committee memberGoran Cukor (predsjednik povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Mechanical Engineering Design)
(Section of Construction Elements)
Rijeka
Defense date and country2019-05-29, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Osnovni zadatak ovog završnog rada je bio izvođenje proračuna i konstruiranje trostupanjskoga reduktora sa dvostruko uparenim zupčanicima prvog i trećeg stupnja. Proračun je započet proračunom zupčanika prema stupnjevima prijenosa, kod kontrolnog proračuna 3. stupnja, zupčanici nisu zadovoljavali postavljene uvijete te je bilo potrebno ponovo proračunati zupčanike 3. stupnja, te se pritom uzeo veći razmak osi i veće dimenzije zupčanika kako bi izbjegli daljnje greške. Nakon proračuna zupčanika proračunata su vratila, te kod njih nije dolazilo do većih problema, a potom su odabrani odgovarajući ležajevi za krajeve vratila koji su proračunati i usvojeni iz SKF kalkulatora. Po završetku odabira ležajeva, odabrana su pera za vratila kod kojih je dolazilo do problema da nisu zadovoljavala zadani uvjet pa je bilo potrebno usvojiti 2 standardna pera iz tablice [2] te njih postaviti razmaknute za 120° po osi vratila. Na krajevima vratila te na mjestima gdje je bilo potrebno osigurati zupčanike, postavljeni su uskočnici koje smo odabrali prema DIN standardu iz tablice [2]. Pri odabiru kućišta prvo je bilo potrebno pravilno rasporediti vratila, te zupčanike kako bi ostvarili najmanje moguće dimenzije reduktora, a samim time i smanjili troškove izrade. Nakon razrade kućišta proračunat je te konstruiran sustav hlađenja i podmazivanja zupčanika nakon čega je još samo bilo potrebno odabrati ostale dijelove reduktora, kao što su: uljokaz, vijci, poklopci vratila... Unatoč svim problemima, reduktor je uspješno proračunat i konstruiran tako da zadovoljava sve postavljene uvjete, te da je jednostavan i jeftin za izradu, a pritom su otklonjene sve moguće greške.
Abstract (english)
The basic task of this final work was the calculation and the design of a three-stage reduction gear with paired first and third stage gears. The calculation was initiated with the gear ratios, at the 3rd stage control calculation, the gears did not meet the set conditions and it was necessary to recalculate the 3rd gear stage, thereby increasing the center distance and increasing the gear dimensions to avoid further flaws. After the gears were calculated, there were no major problems with them, and then the corresponding bearing shafts were calculated and the required rolling bearings were selected from the SKF calculator. Upon finishing the selection of bearings, shaft keys were selected, however they did not meet the required conditions, so it was necessary to adopt two standard keys from table [1] and set them spaced by 120° to the shaft axis. At the ends of the shaft and in the places where it was necessary to secure the gears, snap rings were chosen according to the DIN standard. When the casing was being designed, it was necessary to properly align the shafts and gears to achieve the least possible gear unit dimensions and thus reduce the cost of manufacturing. After the housing was designed, the cooling and lubrication of the gearbox were calculated, after which it was only necessary to select the other parts of the gear unit, e. g. oil sump, screws, shaft covers... Despite all the problems, the gearbox has been successfully calculated and designed to meet all the required conditions and that is easy and economical to manufacture while eliminating all possible design errors.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:437121
Study programmeTitle: Mechanical Engineering
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (stručni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2019-07-19 06:16:56