| Ibisabwa | fs | fL | Ihame, umutwaro ntarengwa umutwaro uguswerainkunga igomba gukoreshwa nkigiciro cyo kubara, igomba gushiramo umutwaro winyongera hamwe nuburemere bwikizamini. Ntabwo ushyizwe mubisabwa mumeza, ibintu bihamye byumutekano fs birashobora gutoranywa ukoresheje ibintu bisa nkibikorwa byakazi hamwe nibisabwa mumeza. Mf = Hindura umwanya wo gutembera kumutwaro wubusa M = Umwanya wo guhirika wa amplitude ntarengwa ukoreshwa mugukoresha static static coefficient fs gufata 1.45, kubera umutwaro muremure ugereranije numurimo uremereye, nibyiza guhitamo imirongo myinshi izungurukaguswera. | |||
| Crane ireremba (imizigo) | 1.10 | 1.0 | ||||
| Crane igendanwa (imizigo) | ||||||
| Ikibuga cyo mu nyanja | ||||||
| ibikoresho byo gusudira | ||||||
| Imbonerahamwe (imikorere ikomeza) | ||||||
| Umunara | * Kuzunguruka hejuru | Mf≤0.5M | 1.25 | 1.0 | ||
| 0.5M≤Mf≤0.8M | 1.15 | |||||
| Mf≥0.8M | 1.25 | |||||
| Kuzenguruka | 1.0 | |||||
| Kuzenguruka (umutwaro w'imizigo) | 1.15 | |||||
| Kohereza | ||||||
| ubwato Ubwikorezi / gupakurura | ||||||
| Imashini iremereye cyane | 1.45 ** | 1.5 | ||||
| Crane igendanwa (fata cyangwa ukore imirimo iremereye) | 1.7 | |||||
| Kuzenguruka (gufata cyangwa guswera) | ||||||
| Ikiraro cya kiraro (fata cyangwa unywe) | ||||||
| Crane ireremba (fata cyangwa unywe) | ||||||
| 2.15 | |||||
| Gusubiramo | ||||||
| Umuyoboro wa Cantilevered | ||||||
| Imashini irenze urugero | Ibipimo byihariye | Muri iyi porogaramu, imiterere yakazi iratandukanye cyane, nkinkunga yo kuzunguruka ikoreshwa kubidasanzwe bizunguruka, gusa igenzura rihamye.Kubufasha bwo kuzunguruka bukoreshwa mukuzunguruka guhoraho no kuzunguruka rimwe na rimwe, kubara ubuzima bwingirakamaro birakenewe. | ||||
| Gari ya moshi | 1.00 | |||||
| Igorofa (umutwaro w'imizigo) | ||||||
| Umubitsi | 1.10 | |||||
| Imodoka | ||||||
| Gucukura umugozi / indobo | 1.25 | |||||
| Gucisha munsi ya 1.5 M3 ya hydraulic | 1.45 | |||||
| Imashini zirenga 1.5 M3 hydraulic | Ibipimo byihariye | |||||
| taret | 1.75 | |||||
Icyitonderwa: fL nikintu gikomeye cyumutekano.Igomba gukoreshwa hamwe na dinamike yumurongo uteganijwe.Bituruka kuburambe no kugerageza.Nibisobanuro bifatika bishingiye kumurimo ntarengwa wakazi.
Kurugero: Igishushanyo mbonera cya porte
Uburyo bwo kubara umutwaro ntarengwa urasabwa kuburyo bukurikira:
Mbere yo guhitamo inkunga izunguruka, ibintu bihamye byumutekano fs bigomba kwitabwaho kubakira bigomba kugenwa, ushobora kubisanga kuri gahunda 1. Porte crane ： fs = 1.45
Iyo umutwaro ntarengwa uhagaze uzwi, formula yo kubara umutwaro wayo niyi ikurikira:
1) umutwaro ntarengwa wakazi wurwego rwumunani urwego rwumuyaga
imbaraga za axial Fa = Q + A + O + G.
guhirika umwanya M = Q × lmax + A × amax + W × r - O × o - G × g
2) Hatitawe ku mbaraga z'umuyaga, tekereza umutwaro wa 25% umutwaro wikizamini
imbaraga za axial Fa = 1.25 × Q + A + O + G.
guhirika umwanya M = 1.25 × Q × lmax + A × amax - O × o - G ×
Urugero: umutwaro wakazi hamwe na amplitude yicyambu cya clamshell bizwi nkibi bikurikira:
Q = 260 kN lmax = 23 m 1max = 23m
A = 75 kN amax = 11 m amax = 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
Umutwaro ntarengwa wakazi wumuyaga kurwego rwa 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) utitaye ku mbaraga z'umuyaga, tekereza umutwaro ntarengwa wo gukora wa 25% umutwaro wikizamini
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 load umutwaro ntarengwa wo gukora utitaye ku mbaraga z'umuyaga
Fa = 1685 kN
M = Q × lmax + A × amax - O × o - G × g
= 260 × 23 + 75 × 11 × 450 × 0,75 × 900 × 3
= 3767.5 kNm
Imiterere yumutwaro 2 ikoreshwa nkumutwaro wakazi wo kubara static
Ukurikije ingengabihe ya 1, portal crane (gufata indobo) igomba gushyigikirwa nimirongo itatu yubwoko bwa rotor-rotary:
Umutwaro uhamye wo kuzunguruka ni:
Fa ＇= 1750 kN × 1.45 = 2537.5 kN M＇ = 5566.3 kNm × 1.45 = 8071.1 kNm
Kubara umutwaro wa bolt ni:
Fa = 1750 kN M = 5566.3 kNm
Ukurikije ibisubizo byavuzwe haruguru byo kubara, guhitamo ubushobozi bwo gutwara ibintu bishobora kugenwa guhitamo inkunga izunguruka ya 13 * .45.2000.002
Ibisobanuro byavuzwe haruguru nuburyo burambuye bwo kubara bwagusweraingano.Ukurikije ibisubizo byo kubara, urashobora guhitamo igikwiyegusweraicyitegererezo muri tweurutonde rwibicuruzwa.Niba utazi kubara, nyamuneka twandikire ukoresheje imeri.Tuzagukorera n'umutima wawe wose!
Igihe cyo kohereza: Apr-08-2021