Mechanisms rau kev txav log tuaj yeem ua tsis tu ncua lossis tsis sib xws. Nrog kev txav mus tas li, lub cav txav mus tas li thiab sib npaug thaum lub sijhawm ua haujlwm thiab tsis ua haujlwm ntawm lub gater ncej. Nrog kev sib cuam tshuam kev txav, lub cav txav tsuas yog rau ib feem ntawm txhua qhov kev sib hloov ntawm lub ncej - intermittently. Kev txav tsis sib xws tuaj yeem ua tau thaum ua haujlwm lossis tsis ua haujlwm ntawm lub rooj vag.
Nruam txav yog siv nyob rau hauv ceev-tsav ob-decker gatekeepers nrog ib tug loj tus naj npawb ntawm revolutions; Kev sib cuam tshuam - nyob rau hauv qeeb-tsav gaiters nrog ib tug tsawg ntawm revolutions.
Txhawm rau txiav cov cav ntawm lub qhov dej, nws yog qhov tsim nyog tias cov saws hauv lub qhov dej yuav tsum muaj qee qhov nqes hav. Qhov loj ntawm txoj kab nqes hav yog txiav txim siab los ntawm cov qauv kev txav mus tas li:
y: Δ / 2 + (1/2) mm; rau kev sib cuam tshuam thaum lub sijhawm ua haujlwm stroke y = 2 txog 5 hli; rau kev sib cuam tshuam thaum lub sij hawm idling y = Δ + (1/2) mm.
Ntawm no, y yog tus nagi ntawm cov saw nyob rau hauv tus ncej, mm; Δ - txav ntawm lub cav los yog nqaj thaum ib qho kev sib hloov ntawm cov gater roller, mm.
Daim duab 1: Inclinometer rau ntsuas tus nqi ntawm inclination ntawm lub saw
Lub overhang (inclination) ntawm lub saw yog xyuas nrog ib tug overhang gauge. Lub overhang gauge muaj ob lub hlau strips uas txuas nrog rau kev sib koom ua ke ntawm sab saum toj, thiab hauv qab kawg nrog ib txoj hlua hla nrog ib qho kev qhia rau kev hla ntawm cov ntsia hlau tensioning nrog ib tug npauj npaim txiv ntseej. Ib qib ntsuj plig yog tsau rau ntawm ib txoj hlua hlau. Lub inclination yog nyeem nyob rau hauv mm ntawm qhov ntev ntawm tus ncej stroke ntawm lub teev, uas yog nyob rau hauv qab ntawm lub accessory (daim duab 1).
Txhawm rau txiav cov laug cam lossis kab teeb ntawm qhov xav tau tuab ntawm cov saws hauv thav duab, inserts (dividers) tau muab tso rau, qhov dav ntawm qhov raws nraim sib haum mus rau lub thickness ntawm lub beam yuav raug txiav.
Spanung yog ib txheej ntawm saws nyob rau hauv ib tug thav duab nrog teem nrug ntawm lawv, nyob rau hauv lub hauv paus ntawm uas sawn ntoo ntawm qhov yuav tsum tau qhov ntev yog tau. Lub thickness ntawm qhov ntxig yog txiav txim siab raws li cov qauv S = a + b + 2c mm. Qhov twg S yog qhov tuab ntawm qhov ntxig; a - nominal board thickness; b - tshaj rau ziab; c - qhov loj ntawm qhov sib kis ntawm cov hniav ntawm ib sab.
Inserts (daim duab 2) yog ua los ntawm cov ntoo qhuav (nrog rau qhov siab tshaj ntawm 15% av noo) birch, chub, beech, tshauv.
Daim duab 2: Inserts (dividers)
Qhov nyiaj pub kom qhuav yog ntxiv rau qhov dav thiab qhov ntev ntawm sawn coniferous ntoo - ntoo thuv, spruce, fir, cedar thiab larch, uas tau txais thaum sib xyaw txiav (nrog rau tangential-radial kev npaj ntawm txhua xyoo rings) ntawm cov cav ntub los yog thaum txiav ntub dej. sawn ntoo kom tau txais qhov ntev ntawm cov khoom siv hauv lub xeev qhuav.
Cov ntoo sawn ntawm enumerated conifers tau muab faib ua ob pawg raws li qhov loj ntawm qhov ziab ntau dhau: thawj suav nrog ntoo thuv, spruce, cedar thiab fir, qhov thib ob suav nrog larch.
Cov thickness thiab dav ntsuas ntawm sawn ntoo nrog thawj cov ntsiab lus noo noo tshaj 30% thiab cov ntsiab lus noo noo kawg ntawm 15% yog muab rau hauv Table 1.
Table 1: Dimensions rau ziab sawn coniferous ntoo, mm
| Qhov ntev ntawm sawn ntoo los ntawm tuab thiab dav tom qab ziab, hli (nrog av noo 15%) | Exaggeration | |
| Pine, spruce, fir, cedar (Kuv pab pawg) | Larch (II pawg) | |
|
6-8 10-13 16 19 22 25 30 35 40 45 50 55 60 65 70 75 80 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 240 260 280 300 |
0,5 0,6 0,8 1,0 1,0 1,0 1,5 1,5 1,5 2,0 2,0 2,0 2,5 2,5 2,5 3,0 3,0 3,0 3,5 3,5 4,0 4,0 5,0 5,0 5,0 5,0 6,0 6,0 6,0 7,0 7,0 7,0 8,0 8,0 9,0 9,0 |
0,7 0,8 1,0 1,5 1,5 1,5 2,0 2,0 2,0 2,5 2,5 2,5 3,5 3,5 3,5 4,0 4,0 4,0 4,5 4,5 5,0 5,0 6,0 6,0 6,0 6,0 8,0 8,0 8,0 9,0 9,0 9,0 10,0 10,0 12,0 12,0 |
Thaum txiav cov cav los yog kab teeb uas muaj cov dej noo hauv qab 30%, qhov loj ntawm qhov tshaj yog xam raws li qhov sib txawv ntawm qhov loj ntawm qhov ntau tshaj rau qhov kev thov kawg ntawm cov av noo thiab qhov ntau dhau rau cov dej noo uas twb muaj lawm ntawm cov ntoo. Sawn ntoo ntawm hardwood hom, uas muaj xws li beech, hornbeam, birch, Oak, elm, maple, tshauv, aspen, poplar, muab faib raws li tus nqi ntawm qhuav rau ob pawg rau tangential kev taw qhia thiab ua ob pawg rau radial kev taw qhia.
Thawj pab pawg muaj xws li birch, ntoo qhib, maple, tshauv, alder, aspen thiab poplar, thiab lub thib ob - beech, hornbeam, elm thiab linden.
Rau ib nrab-radial sawn ntoo (nrog tangential-radial grain kev taw qhia), cov nyiaj txiav txim siab rau cov ntoo nrog tangential grain kev taw qhia yuav tsum tau muab. Overmeasures rau thickness thiab dav rau sawn ntoo nyob rau hauv tangential thiab radial cov lus qhia nrog ib tug pib ya raws ntawm 35% abs. thiab ntau dua thiab cov av noo kawg ntawm 10 thiab 15% abs., thiab nyob ntawm cov pab pawg, raug txiav txim siab raws li cov lus 2.
Table 2: Overmeasures rau sawn ntoo ntawm hardwood hom, mm
