Cov Txuas Master thiab Cov Txuas Master yog cov khoom tseem ceeb rau kev tsim covntau ceg lifting slings.Txawm hais tias feem ntau tsim ua cov khoom siv saw hlau lawv siv rau txhua hom slings suav nrog cov hlua hlau slings thiab webbing slings.
Txawm li cas los xij, kev xaiv cov txuas master kom raug thiab sib xws tsis yooj yim. Muaj ntau yam khoom siv saw hlau uas peb xav txuas thaum cov qauv thiab kev coj ua sib txawv - yog li nws yuav pab tau los tham txog qee qhov teeb meem thiab cov lus qhia.
Master Link yog dab tsi?
Cov Txuas Master thiab Cov Sib Dhos Master kuj tseem paub los ntawm lwm lub npe suav nrog cov txuas oblong, cov nplhaib taub hau, cov sib dhos ntau tus tswv thiab lwm yam. Lawv yog ib qho ntawm cov hom khoom siv forged lifting qub tshaj plaws thiab lawv zaum ntawm qhov siab tshaj plaws ntawm ntau ceg lifting slings.
Cov hlua khi ntau ceg tuaj yeem muaj txiaj ntsig zoo rau kev faib cov zog nqa thiab ua kom ruaj khov thiab tswj tau qhov khoom thauj uas peb xav nqa. Txawm li cas los xij, qhov teeb meem tseem ceeb yog tiascov hlua khithiab cov khoom siv sling feem ntau yog ua rau ib qho chaw sib txuas kom dais lub nra. Yog tias peb muaj ob, peb lossis plaub ceg rau peb lub sling, ces txhua ceg ntawm cov ceg ntawd xav tau ib yam dab tsi los hloov kho lawv rau qhov chaw txuas (xws li lub crane hook) lossis lwm yam khoom siv uas tsuas yog lees txais ib ceg ib zaug.
Kev Sib Txuas
Txoj kev uas cov kev sib txuas lus tseem ceeb ua tiav kev sib txuas yog qhov tseem ceeb.
Rau ob ceg sling qhov no yooj yim heev, Master Link tau ntsuas rau txog li ob qhov kev sib txuas sling ntawm nws qhov kawg qis:
Rau plaub ceg sling, qhov no kuj yooj yim heev. Kev txuas plaub ceg thauj khoom rau qhov kawg ntawm lub master link yog txwv tsis pub, tab sis siv aKev Sib Dhos Txuas Master(Multi-Master Link) peb tuaj yeem muab ob npaug rau ob kom tau plaub ceg:
Peb ceg nyuaj dua. Qee cov ntaub ntawv qub yuav piav qhia peb ceg rau hauv ib qho txuas, txawm li cas los xij, qhov no feem ntau raug txwv. Txoj hauv kev zoo yog siv tib txoj kev li plaub ceg kev npaj thiab siv tsuas yog ib txoj hlua khi rau ib qho ntawm cov khoom nruab nrab.
Ob Ceg Sling Loadings
Plaub ceg Sling Loadings
Peb Ceg Sling Loadings
Kev Txwv Kev Ua Haujlwm
Peb yuav saib cov duab saum toj no thiab xav tias lub neej yooj yim - tab sis tsis yog sai heev!
Peb yuav tsum nrhiav qhov txwv kev thauj khoom ua haujlwm (WLL) twg?
Qhov no tej zaum yog thawj qhov teeb meem uas peb yuav ntsib.
Nrog rau ntau ceg sling peb yuav tsum xyuas kom meej tias tag nrho cov ceg ntawm sling thiab Master Link muaj WLL txaus rau txoj haujlwm. Peb tuaj yeem xaiv cov khoom hauv ib qho ntawm ob txoj hauv kev - peb tuaj yeem xaiv cov ceg uas peb xav tau ua ntej, tom qab ntawd xaiv Master Link kom phim - lossis peb tuaj yeem xaiv Master Link ua ntej, tom qab ntawd nrhiav cov ceg sling nrog cov peev xwm txaus.
Yuav kom ua qhov kev xam no peb yuav tsum xub paub lub kaum sab xis ntawm lub sling.
Hauv tebchaws Australia qhov no yuav yog lub kaum sab xis ntawm cov ceg sling, thiab qhov siab tshaj plaws WLL uas peb tuaj yeem muab tau yuav raug suav ntawm 60 degrees.
Lub kaum sab xis Australian Standard Sling rau kev xam qhov siab tshaj plaws WLL.
Muaj qhov ntsuas 60 ° rau peb tuaj yeem pab tau zoo heev vim nws pab txhawb kom muaj peev xwm thiab siv tau zoo tshaj plaws ntawm peb cov slings.
Txawm li cas los xij, muaj ib qho teeb meem - thiab qhov ntawd yog tus qauv European (EN tus qauv).
European Standard Chain Sling Angles rau kev xam qhov siab tshaj plaws WLL.
Ntawm no lub kaum sab xis yog ntsuas los ntawm qhov ntsug, thiab qhov ntawd tsis yog teeb meem - tab sis qhov siab tshaj plaws WLL yog xam ntawm 45 ° uas yog sib npaug rau Australia lub kaum sab xis 90 ° suav nrog. Hauv ntej, nws txhais tau tias rau qhov loj me ntawm cov saw hlau, qhov siab tshaj plaws WLL ntawm lub sling thiab ntawm qhov txuas tswv sib xws yog me dua.
Ntawm lub kaum sab xis ntawm 60 °, qhov txuas tseem ceeb WLL yuav tsum muaj tsawg kawg yog 1.73 npaug ntawm ceg WLL.
Ntawm lub kaum sab xis ntawm 45 °, qhov txuas tseem ceeb WLL yuav tsum muaj tsawg kawg yog 1.41 npaug ntawm ceg WLL.
Nws kuj txhais tau tias kev xaiv cov khoom thiab kev sib haum xeeb uas teev nyob rau hauv Tebchaws Europe tsis tas yuav siv tau rau Australia.
Thauj Khoom Qhia
Cov hlua khi plaub ceg ua ib lub pyramid. Qhov no yooj yim vim tias ntau lub payloads yog rectangular hauv cov duab - tab sis nws muaj teeb meem thiab qhov ntawd yog static indeterminacy. Hais yooj yim, ob txhais ceg tsis sib koom lub nra sib npaug.
Qhov tseeb, tsuas muaj ib qho kev twv tseeb thaum nws los txog rau kev sib koom thauj khoom thiab qhov ntawd yog qhov loj ntawm cov khoom ib yam li lawv sib koom thauj khoom ntawm ob ceg xwb ... qhov ntawd yog qhov uas Australian Standards ua - thiab peb tuaj yeem ua cov kev sim uas qhia tias nws yog kev coj ua zoo.
Txawm li cas los xij, nws txhais li cas rau peb qhov kev sib dhos Master link yog tias ob qho tib si qhov txuas master sab saud thiab qhov txuas nruab nrab qis dua yuav tsum ua tau raws li WLL tsawg kawg nkaus rau kev sib dhos yog tias xav txog ntawm ob ceg.
Raws li AS3775 qhov no txhais tau tias:
Cov Kev Cai Sib Dhos ntawm Australian Master Link.
Dua li no, cov cai European txawv. Qhov lawv tso cai yog rau kev ntsuas plaub ceg ntawm peb ceg. Tau kawg plaub ceg ntawm peb ceg tsis tuaj yeem txhawb nqa nws tus kheej ntawm peb ceg - nws yog ib txoj hauv kev raws li cov lej xwb.
Qhov no yog ib qho ntawm cov khoom uas qee zaum ua haujlwm thiab qee zaum tsis ua haujlwm. Thaum cov khoom thauj khoom tsis khov kho thiab qee zaum qhov sib piv ntawm cov hlua khi los ze rau cov duab pyramidal tiag tiag, qhov sib faib ntawm cov ceg tuaj yeem tsis zoo thiab cov hlua khi yuav tsum tau txo qis kom suav nrog cov ceg uas tsis khov.
Txawm li cas los xij, nws txhais li cas rau kev xaiv cov sib dhos Master Link yog tias thaum tus tswv txuas WLL raug hais tias yog ib qho nqi txawv teb chaws - qhov no txhais tau tias cov kev sib txuas nruab nrab tsis muaj zog txaus.
Ib qho European Master Link ua haujlwm zoo li no:
Qhov no ua haujlwm nrog cov qauv EN sling, tab sis tsis yog qhov haum rau Australian Standards. Qhov tseem ceeb, nws tsuas yog tsis yooj yim rau tus neeg siv - uas yog, tshwj tsis yog tias kev xaiv khoom tau ua tib zoo kom phim cov cai AS3775 sling.
Cov khoom sib dhos European Standard Master Link yuav tsum tau txo qis kom cov txuas nruab nrab muaj zog txaus.
Kev teeb tsa lub Crane Hook
Muaj ntau tus neeg siv cov hlua khi uas siv tau rau cov hlua khi yuav ntsib teeb meem thaum siv cov hlua khi crane. Yog tias tus hlua khi crane me dhau rau qhov nqa khoom - lossis tus hlua khi crane me dhau rau qhov nqa khoom.
Rau kev teeb tsa lub masterlink rau ntawm lub crane hook, yuav tsum ceev faj tshwj xeeb thaum muaj kev sib xyaw ua ke uas sib haum zoo.
Txhua lub crane hooks yog ua kom muaj zog hauv kev khoov hauv ib lub dav hlau. Txhawm rau kom muaj zog tshaj plaws lawv siv ib ntu uas tob dua li nws dav, thiab rog dua sab hauv dua li sab nraud.
Tshawb xyuas qhov haum ntawm Masterlink thiab tus nuv.
Muaj neeg coob dhau
Peb xav kom peb cov txuas ntev txaus kom haum rau cov khoom xws li crane hooks ntawm lawv sab saum toj nrog rau cov khoom siv hauv qab - tab sis raws li peb pom saum toj no, feem ntau lawv yuav tsum dav txaus thiab.
Qhov no tsis yog tsuas yog qhov yuav tsum tau muaj rau lub crane hook xwb. Nws yog qhov yuav tsum tau muaj rau cov ceg sib txuas.
Yog tias cov khoom sib txuas tsis tuaj yeem zaum hauv qhov txuas thiab dais cov khoom thauj kom raug ces cov txuas ntawd puv dhau lawm. Qhov no ua rau cov khoom nruj dhau thiab tsis raug tso cai.
Kev muaj neeg coob dhau tuaj yeem ua rau mob taub hau tiag tiag tshwj xeeb tshaj yog qhov twg siv masterlink nrog cov hlua hlau.
Hauv cov slings me me nrhiav tau qhov txuas zoo yuav yooj yim, tab sis thaum cov kev sib txuas tuaj rau hauv qhov loj dua yog tias nws tuaj yeem muaj neeg coob dhau nws yuav tsis ua haujlwm.
Hauv daim duab piv txwv, kev sib xyaw ua ke ntawm cov thimbles ua los ntawm cov khoom siv hnyav (duab sab xis) cuam tshuam nrog ib leeg thiab tsuas yog tsis tuaj yeem zaum zoo.
Txoj kab uas hla
Suab yooj yim - cia peb ua kom cov txuas loj dua me ntsis. Tab sis muaj cov txuas dav dua tuaj yeem raug nqi. Peb tseem xav tau peb cov txuas kom muaj zog txaus. Hauv cov ciam teb ntawm lub zog hlau muaj qhov no txhais tau tias cov txuas rog dua ua nrog cov khoom siv loj dua. Qhov no tuaj yeem ua rau nws nyuaj rau kom tau cov khoom sib txuas kom haum.
Ntau cov txuas muaj ib qho tiaj tiaj uas nias kom pab txuas lub txuas saw. Nws yog ib qho tseem ceeb uas yuav tsum xyuas qhov loj ntawm lub qhov ncauj ntawm lub txuas nrog rau sab hauv txoj kab uas hla yog tias koj xav xyuas seb nws puas haum rau ib yam dab tsi zoo li lub txuas masterlink lossis lub shackle.
Siv qhov txuas nrog lub tiaj tiaj nias kom txhim kho kev sib raug zoo.
Lub zog
Tiam sis tus masterlink yuav tsum muaj zog npaum li cas? Raws li cov qauv Australian sling, tus masterlink ntawm txhua tus sling* yuav tsum muaj qhov hnyav tawg ntawm 4:1 - tib yam li lawv ua rau cov saw hlau.
Qhov no tsis hais txog qhov tawg ntawm ntau hom ceg sling: Saw, Hlau Hlua, Round-sling, Webbing, thiab lwm yam. Cov yam ntxwv tawg ntawm cov slings, txawm tias lawv yog 5, 7, lossis ntau dua, raug khaws cia kom cov khoom siv sib txawv tsis muaj zog raug coj mus rau hauv tus account. Cov no tsis cuam tshuam ncaj qha rau cov khoom siv saw, yog li lawv qhov tawg tseem zoo li nws yog rau saw sling.
Qhov no tsis yog qhov teeb meem hauv lwm lub tebchaws, thiab yuav tsum tau ua raws li cov cai hauv zos.
* Muaj qee qhov kev zam, qhov sib tsoo ntawm tag nrho cov hlua khi rau lub thawv ua haujlwm crane yog ob npaug, yog li qhov txuas uas yuav yog 4: 1 yog 8: 1 thaum teeb tsa rau lub thawv ua haujlwm.
Muaj ntau ntxiv rau nws, tau kawg. Txhua lub masterlink yuav tsum yog ductile, nws yuav tsum ua haujlwm tau zoo li qub, thiab nws yuav tsum tiv taus kev sim pov thawj.
Txoj hlua khi nrog Master Link hauv lub txaj kuaj
Qhov tseem ceeb - cov masterlinks tsis raug thauj khoom ib leeg kom txog thaum ua rau hauv lub sling uas tau kuaj xyuas pov thawj. Ntawm theem khoom siv khoom, cov masterlinks tsuas yog kuaj cov qauv ntawm cov mandrels xwb.
Kev kuaj pov thawj yog ib feem tseem ceeb ntawm kev ua cov slings txhim khu kev qha. Muaj ntau yam khoom sib haum ua ke uas kev kuaj muab kev ntseeg siab tias txhua yam khoom muaj zog sib xws rau WLL uas tau cim - thiab yuav siv tau ntev yam tsis muaj kev puas tsuaj.
Kev kuaj kuj tseem tiv thaiv tau qhov puas ntawm cov khoom.
Masterlink nrog qhov tsis zoo ntawm kev tsim khoom pom thaum lub sijhawm pov thawj.
Cov Ntsiab Lus Tseem Ceeb
Cov Ntsiab Lus Tseem Ceeb
Cov Txuas Master yog ib qho tseem ceeb thaum nws los txog rau kev rigging lub tshuab nqa saum toj kawg nkaus vim lawv yog qhov chaw txuas rau cov saw hlau thiab kev siv lwm hom sling.
Tag nrho cov phau ntawv tuaj yeem sau txog masterlinks thiab peb tsuas yog tuaj yeem kov qee qhov tseem ceeb ntawm no:
• Cov txuas tseem ceeb rau ntau txoj hlua khi ceg yuav tsum tau teeb tsa kom raug
• Yuav tsum xav txog qhov sib txawv ntawm cov qauv thiab kev ntsuas thaum xaiv cov khoom sib xyaw
• Lawv yuav tsum tau txuas lawv cov kev sib txuas kom raug rau cov hlua khi thiab cov hooks.
• Lawv yuav tsum muaj zog txaus.
...thiab tsis tsawg kawg, peb yuav tsum nrhiav daim ntawv cim npe thiab daim ntawv pov thawj xeem pov thawj rau cov masterlinks xa tuaj ua ib feem ntawm kev sib dhos sling.
Cov Masterlinks tsuas yog zoo li lawv txoj kev tsim khoom, kev siv thiab kev tshuaj xyuas tas mus li.
Lawv yuav tsum tau xaiv thiab ntsuas los ntawm ib tus neeg muaj peev xwm.
(nrog kev ua siab zoo ntawm Nobles)
Lub sijhawm tshaj tawm: Lub Rau Hli-20-2022
