Produktivnost in poraba časa pri izdelavi prostorninskega lesa s cepilnikom Lancman

Verbič, Klemen (author), Mihelič, Matevž (mentor)

Namen diplomskega dela je bil ugotoviti, ali drevesna vrsta vpliva na proces izdelave polen. Naredili smo poskus, v katerem smo iz 5,13 m3 okroglega lesa izdelali polena, dolžine 0,5 m, pri čemer smo ugotavljali porabo goriva in maziva za motorno žago in traktor, ki je poganjal cepilni stroj, ter porabo elektrike pri krožnem žagalnem stroju. Podatke o potrebnem času smo pridobili z metodo časovnih študij. V delovnem času smo ugotovili učinkovitost dela za delovni čas 0,56 m3/h ter za produktivni čas za izdelavo iglavcev in listavcev skupaj 0,67 m3/h. Produktivnost izdelave polen listavcev je bila manjša (0,59 m3/h) od izdelave polen iglavcev (0,80 m3/h). Pri iglavcih je cepljenje polen učinkovitejše (2,16 m3/h) kot pri izdelavi listavcev (1,59 m3/h). Razlika ostane tudi, če v cepljenje vključimo še čas prelaganja in odmetavanja; tako je produktivnost cepljenja pri iglavcih 1,67 m3/h in pri listavcih 1,14 m3/h. Ugotovljena učinkovitost dela z motorno žago znaša 5,2 m3/h pri iglavcih in 4,94 m3/h pri listavcih, medtem ko učinkovitost dela s krožnim žagalnim strojem za iglavce znaša 2,49 m3/h in za listavce 1,83 m3/h. Poraba goriva za pogon cepilnika s traktorjem z močjo 25 kW je znašala 439 ml/m3 za celoten poskus. Ugotovljena poraba mešanice za prežagovanje okroglega lesa je bila 159 ml/m3 in poraba maziva za verigo motorne žage 46 ml/m3. Poraba energije za krožni žagalni stroj je znašala 0,514 kWh/m3 za iglavce in 0,749 kWh/m3 za listavce.

• Language: Slovenian
• Keywords: pridobivanje lesa, cepljenje drv, poraba goriva, učinkovitost
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [K. Verbič]
• Year: 2022
• PID: 20.500.12556/RUL-134787
• UDC: 630*3(043.2)=163.6
• COBISS.SI-ID: 97466883
• Publication date in RUL: 02.02.2022

Secondary language

• Language: English
• Title: Productivity and time consumption of stacked wood production using Lancman woodsplitter

Abstract

We have set out to determine if the tree species influences the wood splitting productivity. Therefore an experiment was made in which, 5,13m3 of round wood was split and sawed into 0,5m long pieces. We have controlled the use of time, fuel and lubrication in the chain saw and tractor that was used to power the wood splitter, and the consumption of electricity in the circular saw. We have determined the work productivity of 0,56m3/h SMH and the time of work to make 0,5m long firewood pieces established was 0,67m3/h PMH. The productivity of firewood production in broadleaves was lower (0,59 m3/h), than with conifers (0,80m3/h). Also the wood splitting was more productive in conifers (2,16m3/h), than in broadleaves (1,59m3/h), and does not change even if other work operations are added. The determined productivity of work with the chain saw is 5,2m3/h in conifers and 4,94m3/h in broadleaves, while the productivity of work with the circular saw was determined to be 2,49m3/h for conifers and 1,83m3/h for broadleaves. The fuel consumption for the splitter that was powered by a 25kW tractor was 439ml/m3 for the whole trial, while 159ml/m3 of fuel and oil mixure was used for the chainsaw and 46ml/m3 of chain lubrication was used. The use of electricity for the circular saw was 0,514 kWh/m3 for sawing of conifers and 0,749kWh/m3 for broadleaves.

• Keywords: Forest harvesting, Firewood, fuel use, efficiency, Wood splitting