1. Eksperimentalno ispitivanje i modifikacija sustava za odsis drvnih čestica na kružnoj pili
- Author
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Jan Wajs, Tomasz Pikala, Kazimierz Orłowski, Jacek Barański, and Marcin Jewartowski
- Subjects
Suction ,Computer science ,Vacuum pressure ,sliding table saw ,chip removing system ,experimental study ,Mechanical engineering ,Forestry ,Rotational speed ,010501 environmental sciences ,Chip ,01 natural sciences ,Experimental research ,03 medical and health sciences ,stolna kružna pila ,sustav za odsis drvnih čestica ,eksperimentalna istraživanja ,0302 clinical medicine ,030212 general & internal medicine ,0105 earth and related environmental sciences - Abstract
The article presents the results of experimental examination of the wood chip suction system in the existing sliding table saw before and after its modification. The studies focused on the extraction hood of the mentioned system. The methodical experimental research of the pressure distribution inside the hood during wood chip removal for the selected rotational speed of saw blades of 3500 and 6000 min-1 with a diameter of 300 mm and 450 mm were carried out. The analysis of the results allowed estimating the areas with insufficient vacuum pressure hindering the organized transport of wood chips in the sliding table saw. That pressure was the main factor influencing the decision to adjust the hood construction. To achieve the efficient performance, several changes in the hood geometry were implemented. The results obtained from the experiments were used at the stage of shape modification of the extraction hood. As a result, a new design of the chip suction system was obtained, vastly improving the chip extraction from the tool., U radu su prikazani rezultati eksperimentalnog istraživanja sustava za odsis drvnih čestica na stolnoj kružnoj pili prije njegove izmjene i nakon nje. Istraživanja su bila usmjerena na usisno ušće istraživanog sustava. Provedeno je metodološko eksperimentalno istraživanje raspodjele tlaka unutar usisnog ušća tijekom rada sustava za odsis drvnih čestica pri brzini vrtnje kružne pile od 3500 i 6000 min-1 i uz promjer lista pile od 300 i 450 mm. Analiza rezultata omogućila je procjenu područjâ s nedovoljnim podtlakom unutar kojih je onemogućen učinkovit odsis drvnih čestica na stolnoj kružnoj pili. To je i bio glavni razlog odluke o prilagodbi konstrukcije usisnog ušća. Kako bi se postigao učinkovit odsis drvnih čestica, napravljeno je nekoliko promjena u geometriji usisnog ušća. Rezultati dobiveni eksperimentalnim istraživanjem upotrijebljeni su u fazi modificiranja oblika usisnog ušća. Kao rezultat toga dobiven je novi dizajn usisnog ušća kojim je znatno poboljšan odsis drvnih čestica iz radnog prostora alata.
- Published
- 2018