20.500.12556/RUL-155781 Učinki večbobenskega žičnega žerjava tipa Konrad Mounty 4000 in težavnost dela delavca zapenjalca Productivity of cable crane Konrad Mounty 4000 and physiological workload of the chokerman Diplomsko delo se ukvarja s strukturo časov pri žičnem spravilu z žičnim žerjavom Konrad Mounty 4000. Merjeni so bili dnevni učinki na različnih spravilnih razdaljah, ločeno za spravilo navzgor in navzdol. Z meritvami srčnega utripa med delom je bilo ugotovljeno, ali se težavnost dela delavca zapenjalca z večanjem spravilne razdalje spreminja. Na štirih deloviščih je bilo posnetih 257 uporabnih ciklov spravila lesa. Uporabljena je bila kronometrična metoda merjenja časov. Na podlagi meritev so bili izračunani deleži produktivnih in neproduktivnih časov. Opravljena je bila primerjava učinkov univerzalnega večbobenskega žičnega žerjava s stolpom glede na delovišča. Izmerjeni dnevni učinki so bili primerjani z učinki ugotovljenimi z normativi za univerzalni večbobenski žični žerjav s stolpom Syncrofalke 3t. Analizirali smo odvisnost razdalje spravila lesa z izmerjenim srčnim utripom. Z grafi so bile ponazorjene primerjave izmerjenega povprečnega pulza po delovnih operacijah na različnih dolžinah žičnih linij. Rezultati meritev nam prikazujejo višje dnevne učinke za 4-tonski žični žerjav od normiranih učinkov za 3-tonski žični žerjav. Dan podatek potrjuje eno od hipotez v nalogi. Z nalogo so bili ugotovljeni višje učinki spravila lesa navzgor kot navzdol ter da se težavnost dela delavca zapenjalca z večanjem dolžine linije manjša. The thesis deals with the structure of times in cable harvesting with the Konrad Mounty 4000 cable crane. The daily productivity were measured at different skidding distances, separately for uphill/downhill harvesting. Heart rate measurements during work determined whether the difficulty of the chokkerman's work changes with increasing skidding distance. 257 useful cycles of wood skidding were recorded at four worksites. The chronometric method of time measurement was used. Based on the measurements, the proportions of productive and non-productive times were calculated. A comparison of the productivity of the cable crane according to the worksites was carried out. The measured daily productivity were compared with the productivity determined by standard times for the Syncrofalke 3t cable crane. We analyzed the dependence of the wood skidding distance with the measured heart rate. Comparisons of the measured average pulse with respect to work operations on different lengths of cable lines were illustrated by graphs. The results of the measurements show us higher daily productivity for a 4-ton cable crane than the normal productivity for a 3-ton cable crane. That data confirms one of the hypotheses in the thesis. With the thesis, it was established that the productivity of harvesting wood uphill are higher than downhill, and that the difficulty of the work of the chokerman decreases as the skidding distance increases. žični žerjav težavnost dela žičniško spravilo lesa učinki cable crane physiological workload cable yarding productivity true false false [L. Ambrožič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-04-17 14:11:11 2024-04-17 14:11:16 2024-06-10 12:17:04 0000-00-00 00:00:00 2024 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*3(043.2)=163.6 236455 198296835 39353.pdf 39353.pdf 1 2A22D4ADEAF9CD0DD85EB6E2FB0B141C 2b38860b844c2156afc9409ab7a8b5bac1b653c7eb282eeb9db3373d02071323 9610ba52-fcb3-11ee-85a5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182873 Biotehniška fakulteta 0 0 0