Izixhumanisi Eziyinhloko kanye ne-Master Link Assemblies ziyizinto ezibalulekile zokwakhaizihlilingi zokuphakamisa imilenze eminingi.Nakuba zikhiqizwa ngokuyinhloko njengengxenye yesilingi seketanga, zisetshenziselwa zonke izinhlobo zezilingi okuhlanganisa izilingi zezintambo zocingo kanye nezilingi zewebhu.
Ukukhetha izixhumanisi eziyinhloko ezifanele nezihambisanayo akulula nokho. Kunezinhlobo eziningi zezingxenye ze-chain sling esingase sifune ukuzixhumanisa kuyilapho amazinga nemikhuba kuhluka kahle - ngakho-ke kuyasiza ukuxoxa ngezinye zezinkinga kanye nezinkomba.
Iyini i-Master Link?
Ama-Master Links nama-Master Link Assemblies aziwa nangamanye amagama afaka phakathi ama-oblong links, ama-head rings, ama-multi-master link assemblies njll. Angenye yezinhlobo ezindala kakhulu zama-rackle lifting tackle futhi ahlala esicongweni sama-multi-leg lifting slings.
Izilingi zokuphakamisa imilenze eminingi zingaba usizo kakhulu ekusabalaliseni amandla okuphakamisa kanye nokufeza ukuzinza nokulawula umthwalo esifuna ukuwuphakamisa. Inkinga eyinhloko nokho ukuthiizihlilingifuthi izingxenye zesilingi zenzelwe kakhulu indawo eyodwa yokuxhumanisa ukuze ithwale umthwalo. Uma sinemilenze emibili, emithathu noma emine esilingini sethu, khona-ke imilenze ngayinye idinga okuthile ukuze ivumelane nendawo yokunamathisela (njenge-crane hook) noma okunye ukulingana okwamukela umlenze owodwa ngesikhathi.
Ukuxhumana
Indlela izixhumanisi eziyinhloko ezifinyelela ngayo ukuxhumana ibalulekile.
Kulula kakhulu nge-sling yemilenze emibili, i-Master Link ilinganiselwe ukuxhumeka kwe-sling okufika kwemibili engxenyeni yayo engezansi:
Ngesilingi semilenze emine, lokhu kulula kakhulu. Ukuxhuma imilenze emine elayishiwe ekugcineni kwesixhumanisi esikhulu akuvunyelwe, kodwa ukusebenzisaI-Master Link Assembly(Isixhumanisi Se-Multi-Master) singaphindaphinda kabili kabili ukuze sithole imilenze emine:
Imilenze emithathu iyinkimbinkimbi. Amanye amadokhumenti amadala angase abonise imilenze emithathu ibe yisixhumanisi esisodwa, noma kunjalo, lokhu manje sekuvinjelwe ngokuvamile. Indlela efanele ukusebenzisa indlela efanayo nokuhlelwa kwemilenze emine bese usebenzisa i-sling eyodwa kuphela kwenye yezingxenye eziphakathi.
Imithwalo Yesilayidi Esinemilenze Emibili
Imithwalo Yesilayidi Esinemilenze Emine
Imithwalo Yesilayidi Enemilenze Emithathu
Umkhawulo Womthwalo Wokusebenza
Singase sibheke izithombe ezingenhla bese sicabanga ukuthi impilo ilula – kodwa hhayi ngokushesha okukhulu!
Yimuphi Umkhawulo Womthwalo Wokusebenza (i-WLL) okudingeka siwubheke?
Mhlawumbe lokhu kuyinkinga yokuqala kweziningi esizobhekana nazo.
Nge-multiple leg sling kumele siqinisekise ukuthi yonke imilenze ye-sling kanye ne-Master Link ine-WLL eyanele yomsebenzi. Singakhetha izingxenye ngenye yezindlela ezimbili - singakhetha imilenze esiyidingayo kuqala, bese sikhetha i-Master Link ehambisanayo - noma singakhetha i-Master Link kuqala, bese sithola imilenze ye-sling enamandla anele.
Ukuze senze lokhu kubala kumele siqale sazi i-angle yesilingi.
E-Australia leli kuzoba yi-engeli ehlanganisiwe phakathi kwemilenze yesilingi, futhi i-WLL ephezulu esingayinika izobalwa kuma-degrees angu-60.
I-Australian Standard Sling Angle yokubala i-WLL ephezulu.
Ukuba nesilinganiso sama-degree angu-60 esitholakalayo kungaba usizo kakhulu ngoba kusiza ukwandisa amandla angaba khona kanye nokusebenza kahle kwezihlibhi zethu.
Nokho kukhona okubambekayo – futhi lokho kuyindinganiso yaseYurophu evamile (indinganiso ye-EN).
Ama-Engles e-European Standard Chain Sling okubala i-WLL ephezulu.
Lapha i-engeli ilinganiswa kusukela phezulu, futhi lokho akuyona inkinga enkulu – kodwa i-WLL ephezulu ibalwa ku-45° okulingana nobubanzi be-engeli obuhlanganisiwe base-Australia obungu-90°. Ngamafuphi, kusho ukuthi ngosayizi othile weketanga, i-WLL ephezulu ye-sling kanye neye-master link ehambisanayo incane.
Nge-engeli yesilingi efakiwe engu-60°, i-master link WLL kumele okungenani ibe yi-leg WLL ephindwe ka-1.73.
Nge-engeli yesilingi efakiwe engu-45°, i-master link WLL kumele okungenani ibe yi-leg WLL ephindwe ka-1.41.
Kusho futhi ukuthi ukukhethwa kwemikhiqizo kanye nokuhambisana kwayo okubhalwe eYurophu akusebenzi e-Australia.
Layisha Yabelana
Izilingi ezinemilenze emine zakha iphiramidi. Lokhu kulula ngoba imithwalo eminingi yomthwalo inomumo ongunxande - kodwa inenkinga engokwemvelo futhi lokho kungukungaguquguquki. Kalula nje, imilenze ayihlanganyeli umthwalo ngokulinganayo.
Eqinisweni, kukhona ukubheja okukodwa okuqinisekile uma kukhulunywa ngokwabelana ngomthwalo futhi lokho kumayelana nosayizi wezingxenye njengokungathi zabelana ngomthwalo ngemilenze emibili kuphela... yilokho okwenziwa yi-Australian Standards - futhi singenza izivivinyo ezibonisa ukuthi kuwumkhuba ohlakaniphile.
Nokho, lokho okushiwo yi-Master link assembly yethu ukuthi i-top master link kanye ne-lower intermediate links kumele zihlangabezane ne-WLL encane ye-assembly uma zicatshangelwa ngemilenze emibili.
Ngokwe-AS3775 lokhu kusho ukuthi:
Izidingo Zokuhlanganiswa Kwesixhumanisi Esiyinhloko sase-Australia.
Futhi, imithetho yaseYurophu iyahluka. Lokho abakuvumelayo ukukala izilingi ezine zemilenze emithathu. Yiqiniso, isilingi esinemilenze emine asikwazi ukuzisekela ngokomzimba ngemilenze emithathu - kuyindlela esekelwe kuphela ezinombolweni.
Lokhu kungenye yezinto ezisebenza ngezinye izikhathi futhi ngezinye izikhathi ezingasebenzi. Ezimweni lapho imithwalo iqinile futhi ngezikhathi lapho isilinganiso se-sling sisondela esimweni sangempela se-pyramidal, isabelo somthwalo phakathi kwemilenze singaba sibi kakhulu futhi i-sling kufanele incishiswe ukuze kucatshangelwe imilenze exegayo ephumayo.
Nokho, lokho okushiwo ekukhetheni i-Master Link assemblies ukuthi lapho i-master link WLL icashunwa njengenani elilodwa phesheya kwezilwandle - lokhu kungasho ukuthi izixhumanisi eziphakathi azinamandla ngokwanele.
Isixhumanisi Esiyinhloko SaseYurophu sisebenza kanje:
Lokhu kusebenza nezindinganiso ze-EN sling, kodwa akuhambisani ngokwemvelo nezindinganiso zase-Australia. Okubalulekile, akulona iphutha kumsebenzisi - okungukuthi, ngaphandle kokuthi ukukhethwa komkhiqizo kwenziwe ngokucophelela ukuze kuhambisane nemithetho ye-AS3775 sling.
I-European Standard Master Link Assemblies ingadinga ukwehliswa izinga ukuze izixhumanisi eziphakathi ziqine ngokwanele.
Ukufaka i-Crane Hook
Abasebenzisi abaningi be-sling babhekene nenkinga yokwenza ama-sling asebenze ngama-crane hooks. I-crane hook incane kakhulu kune-lifting tackle - noma i-lifting tackle incane kakhulu kune-crane hook.
Ukuze kufakwe i-masterlink ku-crane hook, kunconywa ukuqaphela okukhethekile ngezinhlanganisela ezifanelana kahle.
Zonke izingwegwe zekhreyini zenzelwe ukuba ziqine ekugobeni endaweni eyodwa. Ukuze bandise ukusebenza kahle kwamandla basebenzisa ingxenye ebanzi ejulile kakhulu kunaleyo ebanzi, futhi ekhuluphele ngaphakathi kunangaphandle.
Ukuhlola ukulingana kwe-Masterlink kanye ne-hook.
Ukuminyana ngokweqile
Sidinga ukuthi izixhumanisi zethu zibe zinde ngokwanele ukuze zilingane nezinto ezifana nama-crane hooks phezulu kanye nezinto zokufaka phansi – kodwa njengoba sibona ngenhla, ngokuvamile kumele zibe zibanzi ngokwanele.
Lokhu akuyona nje imfuneko ye-crane hook kuphela, kodwa futhi iyimfuneko ye-interface yemilenze yesilingi.
Uma izingxenye zokuhlangana zingakwazi ukuhlala ngokwemvelo esixhukwini futhi zithwale imithwalo ngendlela efanele, izixhumanisi zigcwele kakhulu. Lokhu kucindezela izingxenye ngezindlela ezingavamile futhi akuvunyelwe.
Ukuminyana ngokweqile kungaba yindaba ebuhlungu kakhulu ikakhulukazi lapho kusetshenziswa i-masterlink ngezinsingi zentambo.
Ezindaweni ezincane zokubopha izintambo ukuthola isixhumanisi esihle kungaba lula, kodwa uma ukuxhumana kuza ngobukhulu obukhulu uma kungagcwala kakhulu ngeke kusebenze.
Esibonelweni esiboniswe esithombeni inhlanganisela yama-thimbles akhiwe ngomthwalo osindayo (isithombe sokunene) iyaphazamisana futhi ayikwazi ukuhlala kahle.
Ububanzi
Kuzwakala kulula – ake senze izixhumanisi zibe zinkulu kancane. Kodwa ukuba nezixhumanisi ezibanzi kuza nezindleko. Sisadinga izixhumanisi zethu ziqine ngokwanele. Ngaphakathi kwemingcele yamandla ensimbi atholakalayo lokhu njalo kusho izixhumanisi ezikhuluphele ezenziwe ngobubanzi obukhulu bezinto ezibonakalayo. Lokhu kungenza kube nzima ukuthola izixhumanisi ezifanelana.
Izixhumanisi eziningi zine-flat ecindezelwe ukusiza ekuhlanganiseni i-chain connector. Kubalulekile ukuhlola ubukhulu bomlomo wesixhumi kanye nobubanzi bangaphakathi uma ufuna ukuhlola ukuthi siyafanelana yini nento efana ne-masterlink noma i-shackle.
Ukusebenzisa isixhumanisi esinophahla olucindezelwe ukuze kuthuthukiswe ukuhambisana.
Amandla
Kodwa i-masterlink kufanele ibe namandla kangakanani? Ngaphansi kwezindinganiso ze-sling zase-Australia, i-masterlink yanoma iyiphi i-sling* kumele ibe ne-breaking load factor engu-4:1 - njengoba nje injalo ngama-chain sling.
Lokhu kungakhathaliseki ukuthi isici somthwalo ophukayo sezinhlobo ezahlukene zemilenze yesilingi sinjani: Iketanga, Intambo Yensimbi, Isilingi Esiyindilinga, I-Webbing, njll. Izinto ezidingekayo zomthwalo ophukayo wezilingi, kungaba yi-5, 7, noma ngaphezulu ziyagcinwa ukuze kucatshangelwe ubuthakathaka obuhlukene bezinto ezibonakalayo. Lokhu akuthinti ngqo ukufakwa kweketanga okufakiwe, ngakho-ke isici sazo somthwalo ophukayo sihlala njengoba sasinjalo nge-ketanga yesilingi.
Nokho, lokhu akusho ukuthi kunjalo kwamanye amazwe, futhi imithetho yendawo kufanele ilandelwe.
* Kukhona okunye okuhlukile, i-breaking load factor ye-sling yonke yebhokisi lokusebenzela le-crane elithwala abasebenzi iphindwe kabili, ngakho-ke isixhumanisi esingaba ngu-4:1 singu-8:1 uma silungiselelwe ibhokisi lokusebenzela.
Kunokunye okwengeziwe vele. Noma iyiphi i-masterlink kumele ibe yi-ductile, kumele ibhekane nokuphila okuvamile kokusebenza kwe-sling, futhi kumele isinde ekuhlolweni kobufakazi.
I-chain sling ene-Master Link embhedeni wokuhlola
Okubalulekile - ama-masterlink awafakwanga ubufakazi bodwa kuze kube yilapho enziwe isilingi esivivinywa ubufakazi. Ezingeni lokuphakelwa kwezingxenye, ama-masterlink ahlolwa kuphela ngamasampula phezu kwama-mandrels.
Ukuhlolwa kobufakazi kuyingxenye ebalulekile yokwenza izihlilingi ezithembekile. Kunezinhlobo eziningi zezingxenye ezihlangana ndawonye kangangokuthi ukuhlolwa kunikeza isiqinisekiso esidingekayo sokuthi zonke izingxenye zinamandla afana ne-WLL ephawulwe ngokuthi - futhi zizosinda ebunzimeni bokusetshenziswa ngaphandle kokukhubazeka.
Ukuhlola kuvikela futhi ekuphazamisekeni kwezingxenye.
I-Masterlink enesici sokukhiqiza esitholwe lapho kufakwa khona ubufakazi bokufaka.
Izisekelo
Izisekelo
Ama-Master Links ayisici esibalulekile uma kukhulunywa ngokufaka i-overhead lift njengoba eyindawo yokuxhumanisa ama-chain sling kanye nokusetshenziswa kwezinye izinhlobo ze-sling.
Izincwadi eziphelele zingabhalwa ngama-masterlink futhi singakwazi ukuthinta ezinye zezisekelo lapha kuphela:
• Izixhumanisi eziyinhloko zezinsika eziningi zemilenze kumele zilungiselelwe kahle
• Umehluko ezindinganisweni nasezilinganisweni kumele ucatshangelwe lapho kukhethwa izingxenye
• Kumelwe zifake ukuxhumana kwazo okufanele nezihlikihliki nama-hook.
• Kumelwe zibe namandla anele.
...futhi okubaluleke kakhulu, kufanele sibheke ithegi efanayo kanye nesitifiketi sokuhlola ubufakazi bezixhumanisi ezinkulu ezilethwa njengengxenye yokuhlanganiswa kwe-sling.
Ama-Masterlink asebenza kahle kuphela ngokukhiqiza kwawo, ukusetshenziswa kwawo kanye nokuhlolwa okuqhubekayo.
Kumelwe zikhethwe futhi zihlolwe ngumuntu onekhono ngaso sonke isikhathi.
(ngomusa we-Nobles)
Isikhathi sokuthunyelwe: Juni-20-2022
