| Tulaga fa'aoga | fs | fL | I luga o le mataupu faavae, o le uta maualuga maualuga e leslewing bearinge tatau ona fa'aogaina le lagolago e fai ma tau fa'atatau, lea e tatau ona aofia ai le uta fa'aopoopo ma le uta su'ega. E le o aofia ai i le talosaga i le laulau, o le static safety factor fs e mafai ona filifilia e ala i le faʻasino i tulaga faigaluega tutusa ma talosaga i le laulau. Mf=Taimi fa'aliliu'ese i luga ole uta gaogao M = O le taimi liliu o le amplitude aupito maualuga o loʻo faʻaaogaina mo le faʻaogaina o le saogalemu faʻamaufaʻailoga fs e ave le 1.45, ona o le maualuga o le avega ma le mamafa o tulaga faigaluega, e sili atu le filifilia o le tele-laina taʻavale.slewing bearing. | |||
| Kirio opeopea ( uta) | 1.10 | 1.0 | ||||
| Kesi feaveai ( uta) | ||||||
| Deck crane | ||||||
| meafaigaluega uelo | ||||||
| Laulau (fa'aauau pea) | ||||||
| Tower crane | * Taamilomilo i luga | Mf≤0.5M | 1.25 | 1.0 | ||
| 0.5M≤Mf≤0.8M | 1.15 | |||||
| Mf≥0.8M | 1.25 | |||||
| taamilosaga i le faavae | 1.0 | |||||
| Rotation crane ( uta uta) | 1.15 | |||||
| Va'a crane | ||||||
| l va'a La'u uta / la'u uta | ||||||
| Metala mamafa masini | 1.45** | 1.5 | ||||
| Kesi feaveai (u'u pe tago i galuega mamafa) | 1.7 | |||||
| Rotation crane (u'u pe susu) | ||||||
| Bridge crane (u'u pe susu) | ||||||
| Kirio opeopea (u'u po'o le susu) | ||||||
| 2.15 | |||||
| Stacker-reclaimer | ||||||
| Cantilevered conveyor | ||||||
| Masini mamafa mamafa i fafo | Tulaga fa'apitoa | I nei talosaga, o tulaga faigaluega e matua ese lava, e pei o le lagolago faʻaaogaina mo le taamilosaga le masani, naʻo le siaki siaki.Mo le lagolago rotary faʻaaogaina i le faʻaauau pea o le taamilosaga ma le faʻalavelave faʻafuaseʻi, e manaʻomia le fuafuaina o le ola malosi. | ||||
| nofoaafi taavale afi | 1.00 | |||||
| Deck crane ( uta uta) | ||||||
| Stacker | 1.10 | |||||
| taavaletoso tiliva | ||||||
| Eli maea/ pakete uaea | 1.25 | |||||
| E itiiti ifo pe tutusa ma le 1.5 M3 hydraulic excavator | 1.45 | |||||
| E sili atu i le 1.5 M3 hydraulic excavator | Tulaga fa'apitoa | |||||
| lave turret | 1.75 | |||||
Fa'aaliga: fL o le fa'ailoga malosi o le saogalemu.E tatau ona faʻaaogaina faʻatasi ma le faʻaogaina o le avega mamafa.E sau mai le poto masani ma faʻataʻitaʻiga.O se tau fa'atatau e fa'atatau i le maualuga o le mamafa o galuega.
Mo se fa'ata'ita'iga:O le fa'ata o le si'o fa'ailoga
Ole metotia fa'atatau ole uta maualuga e fautuaina e fa'apea:
A'o le'i filifilia le lagolago fa'ata'amilo, e tatau ona fa'amautu le tulaga saogalemu fs e tatau ona mafaufauina mo le talimalo, lea e mafai ona maua i le fa'asologa 1. Portal crane：fs=1.45
A iloa le maualuga maualuga o le uta, o le fua fa'atatau o lona uta e fa'apea:
1) le maualuga o le avega galue o se malosi matagi valu tulaga
malosi axial Fa = Q + A + O + G
taimi liliu M = Q × lmax + A × amax + W × r – O × o – G × g
2) E tusa lava po o le a le malosi o le matagi, mafaufau i le uta o le 25% suʻega uta
malosi axial Fa = 1.25 × Q + A + O + G
taimi liliu M = 1.25 × Q × lmax + A × amax – O × o – G ×
Fa'ata'ita'iga: o le uta galue ma le tele o se uafu clamshell e iloa e fa'apea:
Q = 260 kN lmax = 23 m 1max=23m
A = 75 kN maualuga = 11 m maualuga = 11m
O = 450 kN o = 0.75 m o=0.75m
G = 900 kN g = 3 m g=3m
W = 27 kN r = 6.5 m1） r=6.5m
Tulaga maualuga o le malosi o le matagi ile tulaga 8
Fa = Q + A + O + G
=260 + 75 + 450 + 900
=1685 kN
M = Q×lmax + A×amax + W×r – O × o – G× g
=260 × 23 + 75 × 11 + 27 ×6.5×450 ×0.75×900 × 3
= 3943 knm
2) e tusa lava po o le a le malosi o le matagi, mafaufau i le maualuga o le galuega mamafa o le 25% suʻega uta
Fa = 1.25×Q + A + O + G
=325 +75 +450 +900
= 1750kN
M = 1.25×Q×lmax + A×amax – O×o – G×g
= 325 × 23 + 75 × 11 × 45 × 0.75 × 900 × 3
= 5566.3 knm
3) maualuga galuega mamafa e tusa lava po o le a le malosi o le matagi
Fa = 1685 kN
M = Q×lmax + A×amax – O×o – G×g
= 260 × 23 + 75 × 11 × 450 × 0.75 × 900 × 3
= 3767.5 knm
Tulaga uta 2 o loʻo faʻaaogaina e fai ma avega galue o le faʻatusatusaga faʻapitoa
E tusa ai ma le fa'asologa 1, e tatau ona lagolagoina le va'a (grab bucket) i laina e tolu o le roller-type rotary support:
O le uta fa'asinotonu o le lagolago rotary o le:
Fa＇ = 1750 kN × 1.45 = 2537.5 kN M＇= 5566.3 kNm × 1.45 = 8071.1 kNm
Ole fua fa'atatau ole fa'amau ole:
Fa = 1750 kN M = 5566.3 kNm
E tusa ai ma le faʻatusatusaga o loʻo i luga, o le filifiliga o le faʻaogaina o le gafatia e mafai ona fuafua e filifili le lagolago rotary o le 13 * .45.2000.002
O le faʻamatalaga o loʻo i luga o le auala faʻatusatusa auiliili oslewing bearingtele.E tusa ai ma taunuuga o le faʻatusatusaga, e mafai ona e filifilia le mea talafeagaislewing bearingfa'ata'ita'iga i la tatoufa'amaumauga o oloa.Afai e te le iloa pe faʻafefea ona faʻatatau, faʻamolemole lagona le saoloto e faʻafesoʻotaʻi matou ile imeli.O le a matou auauna atu ia te oe ma le loto atoa!
Taimi meli: Apr-08-2021