** Ceeb Toom Tseem Ceeb:** Qhov no yog cov ntawv sau keeb kwm, tsis yog tus qauv tam sim no, tshuab specification lossis phau ntawv khiav haujlwm. Cov qauv, txoj kab nqes, qhov ntev, cov av noo thiab overhangs yuav tsum tau kuaj xyuas raws li cov qauv siv tau, cov chaw tsim khoom siv cov ntaub ntawv thiab cov txheej txheem tsim khoom tshwj xeeb.

Cov ntawv no tsis yog ib feem ntawm qhov kev thov tam sim no ntawm Savo Kusić, uas yog tsom rau lub qhov rais, qhov rooj thiab cov kev daws teeb meem.

Kev txav ntawm lub cav thiab qaij ntawm lub saw

Mechanisms rau kev txav cov cav tuaj yeem ua tsis tu ncua lossis cuam tshuam. 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.

Kev txav mus los tsis tu ncua yog siv nyob rau hauv ceev-tsav ob-decker gatekeepers nrog coob tus kiv puag ncig; Kev txav mus los tsis sib xws - hauv cov gaiters qeeb qeeb nrog cov kev hloov pauv tsawg.

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) hli;  rau kev sib cuam tshuam thaum lub sijhawm ua haujlwm stroke y =2rau5 mm; rau kev sib cuam tshuam thaum 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.

Keeb kwm inclinometer rau ntsuas qhov inclination ntawm ib tug saw, archive tag20190926 160715

Duab1: Inclinometer rau ntsuas tus nqi ntawm inclination ntawm cov 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. Txoj kab nqes yog nyeem 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 thiab dividers

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 los ntawm cov qauv S = a + b +2c mm ua. 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 (fig.2) yog ua los ntawm cov ntoo qhuav (nrog max15%humidity) birch, chub, beech, tshauv.

Keeb kwm zaub ntawm inserts los yog dividers, archive tag Screenshot20190926 161427

Duab2: Inserts (dividers)

Kev tso cai rau ziab yog ntxiv rau qhov ntev ntawm qhov dav thiab ntev ntawm cov ntoo sawn - ntoo thuv, spruce, fir, cedar thiab larch, uas tau txais thaum lub sij hawm sib xyaw txiav (nrog tangential-radial kev npaj ntawm txhua xyoo rings) ntawm cov cav ntub los yog thaum txiav cov ntoo ntub dej kom tau txais qhov ntev ntawm cov ntoo hauv lub xeev qhuav.

Ntau dhau rau ziab conifers

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.

Overmeasures rau thickness thiab dav ntawm sawn ntoo nrog pib ya raws tshaj30%thiab huab cua heev15%raug muab rau hauv lub rooj1. 

Table 1: Overmeasures rau ziab sawn coniferous ntoo, mm
Dimensions ntawm sawn ntoo los ntawm tuab thiab dav tom qab ziab, hli (nrog av noo 15%) Exceed
Pine, spruce, fir, cedar (I group) Larch (II group)
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 ntoo lossis 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 tshaj rau qhov kev thov kawg ntawm cov dej 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 ua ob pawg rau tangential kev taw qhia thiab ob pawg rau radial kev taw qhia.

Overmeasures rau ziab hardwoods

Thawj pawg suav nrog birch, ntoo qhib, maple, tshauv, alder, aspen thiab poplar, thiab thib ob - beech, hornbeam, elm thiab linden.

Rau ib nrab-radial sawn ntoo (nrog tangential-radial grain kev taw qhia), cov overmeasures txiav txim rau 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 kev taw qhia nrog thawj cov av noo ntawm 35% abs. thiab ntau thiab cov av noo kawg 10 thiab 15% abs., thiab nyob ntawm cov pab pawg, lawv raug txiav txim raws li lub rooj 2.

Rooj2: Kev ntsuas rau sawn lumber ntawm hardwood hom, mm

Historical table of over measurements for sawn ntoo ntawm hardwood hom