1. Izdelava in testiranje prototipa sušilne omare : magistrsko deloFran Slemenšek, 2024, master's thesis Abstract: Sušilna omara je namenjena za sušenje in osveževanje mokrega ali suhega perila. Tako se oblačila posušijo, osvežijo in razkužijo s pomočjo pare. Sistem temelji na uporabi izmenjevalnika toplote oz. krajše kompresorja. Ta segreje topel zrak in ga s pomočjo ventilatorja gnanim z BLDC motorjem usmeri v zračni kanal na zadnji strani omare. Voda se prečrpa iz rezervoarja za čisto vodo v parni generator na vrhu omare, kateri upari in usmeri vodno paro v omaro, tako da odstrani gube na oblačilih, prav tako pa jih razkuži. Para kondenzira na dnu omare kjer je zračni usmernik in se s pomočjo črpalke prečrpa v rezervoar z umazano vodo. Sistem ima več različnih nastavitev, kot so samo sušenje, samo uporaba pare, sušenje in para, časovne programe, varnostno zaklepanje, in začetek sušenja z zamikom. Prav tako omara vsebuje WIFI modul, tako da lahko omaro upravljamo preko aplikacije.
Keywords: sušilna omara, zasnova, izdelava prototipa, avtomatizacija, testiranje, sušenje
Published in DKUM: 25.09.2024; Views: 0; Downloads: 0
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2. Suitability of test procedures for determining the compatibility of seal materials with ionic hydraulic fluidsDarko Lovrec, Vito Tič, 2024, original scientific article Abstract: The compatibility of seal materials with the working fluid is crucial for the flawless, energysaving, environmentally sustainable, and safe operation of any technical system. This is especially
true for hydraulic systems operating under high operating pressure. The problem of materials
compatibility comes into play when either a new type of seal material or a new type of fluid comes
into use. The paper discusses the research findings regarding material compatibility testing of new
high-tech ionic hydraulic fluids with commonly used seal materials. Due to the completely different
chemical composition of these new fluids compared to the classical mineral-based oil, for these fluids,
there are no standardized testing procedures. In these cases, we can only lean on the Standards
that apply to classical fluids, which can lead to incorrect results. In the forefront of the paper is the
discrepancy between the results obtained by the standardized test, and the test under real operating
conditions. FKM, an excellent material for seals, proved to be the most suitable in the case of using
ionic hydraulic fluid, according to a standardized test. However, it failed in the comparison test
under real operating conditions, as the cylinder leaked. NBR seals proved to be a better solution.
Keywords: ionic hydraulic fluids, seal material compatibility, static and dynamic test, comparison of results, differences, test suitability
Published in DKUM: 10.09.2024; Views: 59; Downloads: 35
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3. Naprava za mazanje navojnih izvrtinSimon Blaževič, 2024, undergraduate thesis Abstract: Tema diplomske naloge se nanaša na zasnovo, konstrukcijo in izdelavo naprave za mazanje izvrtin. Vključuje tudi pripravo tehnične dokumentacije. Projekt je bil realiziran v okviru podjetja.
V uvodu je najprej predstavljeno podjetje, nato kratko opisano teoretično ozadje pnevmatskih sistemov, ki so opisani v diplomski nalogi, nato pa se podrobneje predstavljena sama naprava. Predstavljen je celotni postopek izbire komponent in materiala vključno s podrobnim opisom delovanja in nastavitev posameznih komponent.
Keywords: prenosna mazalna naprava, pnevmatski sistem, mazivo
Published in DKUM: 11.07.2024; Views: 72; Downloads: 40
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4. Avtomatizirano zaznavanje napak pri delovanju pnevmatske postaje : magistrsko deloAndrej Baligač, 2024, master's thesis Abstract: V obravnavanem magistrskem delu je predstavljena samodiagnostika pnevmatske delovne postaje, ki temelji na uporabi tlačnih in pretočnih senzorjev za zaznavanje puščanja komprimiranega zraka. Glede na izhodiščni delovni cikel postaje smo ocenili nadaljnje poškodbe in naprave in s tem povezano puščanje, pri čemer smo zaznavali dodatno količino porabljenega komprimiranega zraka, ali s tem povezane padce tlaka v določenem ciklu obratovanja. Realni podatki delovanja in puščanja pnevmatske postaje so bili pridobljeni s pomočjo krmilnika Beckhoff, medtem ko smo naredili vzporedno simulacijo izgub s pomočjo programa Automation Studio.
Keywords: pnevmatični manipulator, detekcija napak, samodiagnostika, Beckhoff, TwinCAT 3.
Published in DKUM: 29.03.2024; Views: 208; Downloads: 38
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5. Ionic hydraulic fluids and seal-material compatibilityDarko Lovrec, Roland Kalb, Vito Tič, 2024, original scientific article Abstract: Manufacturers of hydraulic fluids invest a lot of effort and resources in improving their physico-chemical properties, with the goal of getting as close as possible to the properties of an ideal hydraulic fluid. It should be non- flammable, environmentally friendly, sustainable and should have excellent physical and chemical properties. After decades of development in the field of ionic liquids and the search for an ionic liquid suitable for use in hydraulic systems, ionic hydraulic liquids are now already in industrial use, especially on devices that operate in harsh and risky operating conditions. Since ionic hydraulic fluids are a completely new type of hydraulic fluid, one of the issues is their compatibility with the materials present in the hydraulic components, including all the seals. This paper refers to the process of testing the compatibility of hydraulic seal materials with different types of ionic hydraulic fluids according to the standardized percentages and recommendations, with emphasis on changes in the swell, shrinkage and hardness of the seals. The presented results are a useful guide for selecting suitable seal materials in case of using high-tech ionic hydraulic fluids.
Keywords: ionic hydraulic fluids, seal material, compatibility, fluid-testing method, test results
Published in DKUM: 19.03.2024; Views: 287; Downloads: 26
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6. Avtomatizacija delovne postaje za etiketiranje v okviru sistema CP Lab : magistrsko deloLuka Tandara, 2023, master's thesis Abstract: Eden od poudarkov koncepta Industrija 4.0 je je digitalna transformacija in avtomatizacija proizvodnih procesov. Tem usmeritvam sledi tudi vsebina magistrskega dela, kjer je v ospredju razvoj procesa avtomatizirane proizvodnje. V ta namen je bil uporabljen laboratorijski sistem CP Lab proizvajalca Festo, pri čemer je bila v ospredju podrobna analiza modula za označevanje izdelkov - etiketiranje. Znotraj programskega okolja TIA Portal smo razvili krmilni program, ki omogoča upravljanje sistema tako v ročnem kot tudi v avtomatiziranem načinu dela, prav tako smo zasnovali uporabniški vmesnik HMI za nadzor in vizualizacijo delovanja sistema. V zaključni fazi projekta je bil modul za etiketiranje uspešno implementiran v celovit sistem CP Lab.
Keywords: Industrija 4.0, Festo CP Lab, Označevanje izdelka, TIA Portal, HMI
Published in DKUM: 09.02.2024; Views: 411; Downloads: 50
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8. International conference Fluid Power 2023 : Conference Proceedings2023, proceedings of peer-reviewed scientific conference contributions (international and foreign conferences) Abstract: The International Fluid Power Conference is a two day event, intended for all those professionally-involved with hydraulic or pneumatic power devices and for all those, wishing to be informed about the ‘state of the art’, new discoveries and innovations within the field of hydraulics and pneumatics. All papers included in the conference program are reviewed and collected in the conference proceedings. The gathering of experts at this conference in Maribor has been a tradition since 1995, and is organised by the Faculty of Mechanical Engineering at the University of Maribor, in Slovenia. Fluid Power conferences are organised every second year and cover those principal technical events within the field of fluid power technologies in Slovenia, and throughout this region of Europe. This year's conference is taking place on the 20th and 21th September in Maribor
Published in DKUM: 18.10.2023; Views: 261; Downloads: 16
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9. Zasnova in izdelava didaktičnega modela procene tehnike : diplomsko deloMatic Dreu, 2023, undergraduate thesis Abstract: V diplomskem delu je predstavljen pojem procesna tehnika, kje ga zasledimo in tipični primeri uporabe. Nato je prikazana zasnova in izdelava modela procesne tehnike. V delu so izbrani in definirani vsi elementi in razlogi za njihovo uporabo. Prikazana je izdelava konstrukcije modela ter rezervoarjev s programskim okoljem Solidworks. V zaključku je prikazano programiranje modela in preizkus programa oziroma prvi zagon. Pri sami izdelavi modela je bilo nekaj omejitev. Omejitve so se pojavljale pri velikost modela, saj gre za namizni model, pri materialih zalogovnikov in pri napajalni napetosti 24 V , ki izhaja iz povezljivosti z industrijskim krmilnikom. Težave so bile tudi pri izbiri senzorjev predvsem zaradi pritrjevanja le teh na rezervoarje in pri uporabi krmilnika, saj se je uporabljal Siemensov krmilnik in programsko okolje TIA portal.
Keywords: procesna tehnika, avtomatizacija, programiranje, načrtovanje, PLK
Published in DKUM: 09.10.2023; Views: 414; Downloads: 45
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10. Proizvodni izvršilni sistemi : diplomsko deloMaj Mesarič, 2023, undergraduate thesis Abstract: V diplomskem delu so najprej predstavljeni nivoji proizvodnega podjetja po standardu ISA-95, nato so na splošno predstavljeni proizvodni izvršilni sistemi in naloge, ki jih morajo opravljati. Opisana je povezava med proizvodnimi izvršilnimi sistemi in sistemi drugih nivojev ter tok informacij med njimi. Podana je osnovna struktura informacijskega okolja proizvodnega podjetja in nekaj tehnologij, ki omogočajo komunikacijo sistemov različnih nivojev v tem okolju. Diplomsko delo se nato osredotoči na nekaj konkretnih primerov proizvodnih izvršilnih sistemov, predstavi njihovo strukturo ter nekaj tehnologij, ki jih ti sistemi uporabljajo.
Keywords: proizvodnja, avtomatizacija, digitalizacija, informacijski sistemi, MES
Published in DKUM: 05.10.2023; Views: 330; Downloads: 38
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