20.500.12556/RUL-154223 Varovanje dušilk proti odvitju Protecting throttles against self-loosening Dušilke s konstantnim presekom se pogosto uporabljajo v hidravličnih ventilih, saj so pomemben člen pri krmiljenju aktuatorjev. Dušilke je potrebno zavarovati proti odvitju, kar se je do sedaj izvajalo z lepljenjem. Cilj diplomske naloge je bil najti ustreznejšo alternativo varovanja dušilk proti odvitju, da bi bila montaža dušilk enostavnejša, hitrejša in bolj ponovljiva. Zasnovali smo udarna orodja, preizkusili kombinacijo različnih navojev in poškodbo navojev ter preizkusili točkovno varjenje dušilk. Z merilnikom navora smo merili razlike momentov odvitja od momenta privitja alternativnih načinov varovanja. Rezultate smo analizirali, primerjali z lepljenjem in presodili, da je najboljši način varovanja orodje s šest kotno konico. To orodje bomo implementirali v montažni proces. Podali pa smo tudi predloge za nadaljnje delo in možnosti izboljšav. Throttles are often used in hydraulic valves as they are an important link in the actuator control. Throttles need to be protected against self-loosening, which was previously done by gluing. The aim of the thesis was to find a more suitable alternative to protect the throttles against self-loosening in order to make the assembly of throttles easier, faster and more repeatable. We designed impact tools, tested the combination of different threads and thread damage and trialled the spot welding of throttles. Using a torque metre, we measured the differences in the unwinding torques from the torques of tightening of alternative methods of protection. We analysed the results, compared them with gluing and came to the conclusion that a tool with a six-angled tip is the best protection method. We will integrate this tool into the assembly process. We also made suggestions for further work and possible improvements. hidravlika dušilka varovanje proti odvitju uporovno točkovno varjenje merjenje momenta montažni proces hydraulics throttle protection against self-loosening resistance spot welding torque measurement assembly process true false false [D. Čibej] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-02-02 08:30:36 2024-02-02 08:30:41 2024-02-13 13:13:20 0000-00-00 00:00:00 2024 0 Ljubljana 0 XX, 46 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.22:621.646.2:62-225.2(043.2) 259939 185092099 32783.pdf 32783.pdf 1 45A49BC892C262B59AE7E8601AB3F860 77d5b26cf8f7c30d1f296eec5e57f6185a83e70e7f141d13e6a0904e2e7b0cc9 f7fe6d95-c19c-11ee-9ac8-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180490 Fakulteta za strojništvo 0 0 0