Proceedings of SerbiaTrib '13

njihovih kotrljanih elemenata. Merenjem zazora naležajevima utvrđeno je: paket ležajeva na ulaznom vatilu (31319) jevan preporučenih tolerancija, pa jepotrebna zamena, ležaj na ulaznom vatilu NU 2322 imanedopušteni zazor i on se mora zameniti, ostali ležajevi su u granicama preporučenihtolerancija od strane proizvođača.prijanjanja paknova kočnice i izvršidinamičko uravnoteženje(balansiranje), na ulaznom vratilu izvrši zamena svihležajeva sa obaveznim uparivanjem paraležajeva 31319, pohabani rukavci ulaznog vratila imeđuvratila regenerišu se metalizacijom sabrušenjem na nominalne mere, gonjeni cilindrični zupčanik regenerišenavarivanjem polomljenog zupca.6. ZAKLJUČAKReduktor ulazi u redovan remont jednomgodišnje, za vreme planirane investicione popravkeili remonta, ili ukoliko se desi neki neplanirani kvarili havarija. Najčešći razlozi remonta reduktora su:zagrevanje ležajeva, curenje ulja iz reduktora,povećana bučnost reduktora, pohabanost rukavacavratila, lom zubaca zupčanika.Slika 12. Merenje radijalnih zazora ležajaNa osnovu rezultata merenja i ispitivanjadoneta je odluka da se: kočioni točak na krutoj spojnici obradistruganjem na prvu veću meru radi boljegLITERATURA[1] J. Jevtić: Reduktori – proračuni i konstrukcije,Privredni pregled, Beograd, 1976.[2] S. Marković, D. Josifović: Regeneracija zupčanika,monografija, Jugoslovensko tribološko društvo,Kragujevac, 1998.[3] S. Marković: Održavanje mašina i opreme, Višatehnička škola, Čačak, 2005.[4] M. Trbojević, M. Janković, J. Vugdelija, N. Plavšić,V. Latinović: Reduktori, Naučna knjiga, Beograd,1991.[5] www.rbkolubara.co.yu.DEFECTATION OF THE REDUCER BKSH-335 FOR THE ACTIVATIONOF THE BAND TRANSPORTER OF THE DREDGER Sch Rs 630Abstract: The repair of a powerful mechanical system such as dredger Sch Rs 630 is based on the high levelof reliability, accuracy and functioning of all its circuits. Due to the reasons listed above the rapair of thementioned reducer must be done with thorough defectation, suitable regeneration technology, embedding ofquality parts (gears, shafts, bearings) and proper installation of the parts into the reducer, and installationof the reducer onto the dredger itself. All the mentioned factors are essential and they influence the properoperation of the reducer. Also, it is necessary to pay attention to the economical adequacy of this type ofwork. In big systems every non-planned work failure brings enormous costs. Neither it is recommended noracceptable that the failure in the dredger work has its cause in a malfunction of the similar reducer.Keywords: dredger, reducer, defectation, repair.ACKNOWLEDGMENTThis work has been performed within the project TR 35011. This project is supported by the Republic ofSerbia, Ministry of Science and Technological Development, which financial help is gratefullyacknowledged.13 th International Conference on Tribology – Serbiatrib’13 425