20.500.12556/DKUM-79548 Razvoj in uporabnost traktorskih vitlov s konstantno vlečno silo Development and usability of tractor winches with a constant traction force V Sloveniji je gozdarstvo močno razvita panoga in pomemben del kmetijstva. Veliko kmetij ima v lasti gozd, ki predstavlja dodaten vir zaslužka na kmetiji. Cilj diplomskega dela je prikazati delovanje nove tehnologije »konstantne vlečne sile« pri vitlih, ki se kot orodje že nekaj časa pojavljajo na trgu, vendar s to tehnologijo še niso seznanjeni vsi uporabniki takšnih delovnih strojev. V raziskovalnem delu smo opravili poskusno testiranje dveh različnih vitlov v proizvodnih prostorih podjetja Krpan. Pridobljeni podatki omogočajo lažjo interpretacijo razlike med dvema različnima konstrukcijskima sistemoma vitla. Konstantna vlečna sila omogoča enakomeren vlek vitla pri različni oddaljenosti bremena od traktorja. Do zdaj so kmetovalci uporabljali le klasične vitle, ki takšne tehnologije niso imeli vgrajene. Zdaj novi sistemi kmetovalcem omogočajo lažje delo pri najtežjih kmetijskih opravilih, kot so sečnja in spravilo lesa, delo v gozdu in pri vseh opravilih, kjer potrebujemo takšen delovni stroj. Prednost takšnih strojev so tudi lažji pogoji dela na razgibanem terenu, manjša poraba goriva in večja varnost pri delu. Glede na pregled literature in rezultate testiranja smo prišli do zaključka, da je vitel s konstantno vlečno silo bolj učinkovit pri vleki kot tisti brez, predvsem zaradi izbire pravilnega gonilnega sistema. Neprestane inovacije proizvajalcev pa stremijo k izboljšanju varnosti pri delu, predvsem na hribovitih težje dostopnih področjih. In Slovenia, forestry is a highly developed industry and a vital part of agriculture. Many farms own forests, which provide an additional source of income on the farm. The aim of the diploma thesis is to demonstrate the performance of the new “constant pulling force” technology used in winches; such tools have been present in the market for quite some time now, but not all users of such machinery are familiar with this technology. For the research section of the thesis, two different winches were tested in the production facilities of the company Krpan. The data obtained enable an easier interpretation of the difference between two different designs of winch systems. The constant pulling force enables the winch an even pull no matter the distance of the load from the tractor. Until now, farmers only used classic winches that do not come with this technology. Now, the new systems facilitate the work of farmers when performing the most difficult agricultural work, such as felling and wood skidding, working in the forest, and in all kinds of work where such a machine is needed. Such machines also have the advantage of facilitating operation on rough terrain, reducing fuel consumption, and increasing safety at work. Based on the literature review and the test results, it has been concluded that a winch with constant pulling force has a more efficient pull than a winch without it, mostly due to choosing the appropriate drive system. The manufacturers are constantly introducing innovations to improve safety at work, especially in hilly, hard-to-access areas. vitel gozdarstvo konstantna vlečna sila vleka winch forestry constant pulling force pull true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2021-07-18 17:33:55 2021-09-06 10:51:32 2022-08-09 21:42:43 0000-00-00 00:00:00 2021 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 75285251 VS_Pozek_Valentina_2021.pdf VS_Pozek_Valentina_2021.pdf 1 471938B9F58C8059BEF18704B8D2B60E 6bc676cd30cfccb0e584c57556d5b93ca0d63fe54257975f0d7c1dac7d825ea4 571b5a4d-e7f0-11eb-97ae-00155d581298 20.500.12556/dkum/1060d886-677a-4566-8f6d-bb62a3f7d335 https://dk.um.si/Dokument.php?lang=slv&id=151323 Fakulteta za kmetijstvo in biosistemske vede 0 0 0