POUZDANOST LEŽAJEVA U SKLOPU SLOGA TRANSPORTERA SA GUMENOM TRAKOM

Abstract

Transporteri sa gumenom trakom na površinskim kopovima rade u izuzetno teškim radnim uslovima. Razlog tome je izražen uticaj radnog okruženja na normalan i nesmetan rad. Kiša, blato, veliki raspon radnih temperatura samo dodatno otežava dostizanje planiranih kapaciteta. Povećana prašina i vlaga stvaraju velike probleme obrtnim delovima transportera; valjcima i bubnjevima. Usled dužeg perioda rada u takvim uslovima, dolazi do problema sa zaptivanjem, pa ulazak prašine i vode često znatno smanjuje radni vek ležaja, što neminovno utiče na pouzdanost sistema. Cilj analize vršene kroz ovaj rad je da ukaže koji tip ležajeva se najbolje pokazao na valjcima u nosećem i povratnom kraku za odgovarajuće pozicije rolne u slogu i opterećenja u radu.

Belt conveyors on open cast mines work in extremely difficult working conditions. The reason for this is the significant impact of atmospheric conditions on normal and smooth operation. Rain, mud, a large range of operating temperatures only makes it more difficult to reaching the planned capacity. Increased dust and moisture often create major problems with the rotary parts of the conveyor; rollers and drums. Due to prolonged periods of operation under such conditions, there is a sealing problem, and the ingress of dust and wate often greatly reduces the lifespan of the bearing, which inevitably affects the reliability of the system. The aim of the analysis carried out by this paper is to indicate which series of bearings have best shown on the rollers in the carrier and the return arm for the respective roll position and work load.