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Vpliv strojnega brušenja verige motorne žage na učinkovitost prežagovanja lesa in tresenje rok
Brkopec, Žan (Author), Poje, Anton (Mentor) More about this mentor... This link opens in a new window

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Abstract
V diplomski nalogi smo raziskovali vpliv strojnega brušenja verige motorne žage na učinkovitost prežagovanja lesa in tresenje rok. V raziskavo smo vključili štiri verige proizvajalca STIHL modela 3/8'' 1,6 RAPID SUPER (RS), in sicer industrijsko nabrušeno verigo in tri verige, ki smo jih nabrusili s stroji za brušenje (Stihl USG, Tecomec Super Jolly, Vollmer Werke Cane/e). Z vsako verigo smo izvedli 18 prežagovanj smrekove prizme z motorno žago Stihl modela MS 362. Rezultati raziskave so pokazali, da je bilo prežagovanje z naknadno nabrušenimi verigami za 55 % do 81 % manj učinkovito kot z industrijsko nabrušeno verigo. Med strojno nabrušenimi verigami je bila najučinkovitejša veriga, nabrušena z najdražjim strojem Vollmer Werke Cane/e. Jakost tresenja na nosilnem in vodilnem ročaju je bila največja pri uporabi industrijsko nabrušene verige, najmanjša pa pri verigi, nabrušeni z najdražjim strojem Vollmer Werke Cane/e. Pri uporabi vseh verig je bila jakost tresenja večja na nosilnem kot na vodilnem ročaju. Vsebnost vode v lesu vpliva na učinkovitost prežagovanja kakor tudi na jakost tresenja motorne žage, kar pa velja samo za strojno brušene verige. Z učinkovitostjo prežagovanja se pri uporabi industrijsko nabrušene verige značilno povečuje jakost tresenja na obeh ročajih. Ugotovitve raziskave so uporabne za lažjo odločitev pri izbiri stroja za brušenje verige motorne žage za profesionalnega gozdarskega delavca ali za občasnega uporabnika motorne žage.

Language:Slovenian
Keywords:stroj za brušenje, motorna žaga, tresenje, učinkovitost
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2021
Publisher:[Ž. Brkopec]
Place:Ljubljana
UDC:630*36+630*30(043.2)=163.6
COBISS.SI-ID:78966531 This link opens in a new window
Views:86
Downloads:10
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Secondary language

Language:English
Title:The impact of machine chain sharpening on the efficiency of cross-cutting and exposure to vibrations
Abstract:
This thesis investigates the influence of chain sharpening machine type on the efficiency of wood cross-cutting and exposure to vibration. With each chain, 18 cuts of spruce prism were performed with a Stihl chainsaw model MS 362. The results of the study show that cross-cutting with ground chains which were later sharpened was 55 % to 81 % less efficient than with an industrially sharpened chain. Among machine-sharpened chains, the most efficient was the chain sharpened with the most expensive Vollmer Werke Cane / e machine. The vibration exposure on the top and rear handles was highest when using an industrially sharpened chain, and lowest when it was sharpened with the most expensive Vollmer Werke Cane / e machine. When using all chains, the vibrations were higher on the top than on the rear handle. The water content in the wood affects the cross-cutting efficiency as well as the vibrations magnitude, which only applies to machine-sharpened chains. With the cross-cutting efficiency, the vibrations on both handles were significantly increased when using an industrially sharpened chain. The findings of the research are useful to simplify the decision when choosing a chainsaw sharpening machine for a professional forestry worker, or for the occasional chainsaw user.

Keywords:Chain sharpening machine, chainsaw, vibration, performance

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