ukadaulo wa Ingiant | Makampani atsopano | Epulo 19, 2025
Mu mtsinje wachitsulo wa mafakitale amakono, ma crane ali ngati manja osatopa a makina, omwe amanyamula ntchito yolemetsa yosamalira zinthu. Monga "malo olumikizirana mitsempha" a makina akuluakuluwa, magwiridwe antchito a mphete zolumikizirana ndi chingwe zimagwirizana mwachindunji ndi magwiridwe antchito komanso chitetezo cha crane. Mukuyang'anizana ndi mitundu yosiyanasiyana ya zinthu zolumikizirana pamsika, kodi mungasankhe bwanji "mnzanu wagolide" woyenera wa crane? Kudzera munkhaniyi, tikuthandizani kuyankha mafunso omwe ali m'maganizo mwanu.
Ⅰ. Fotokozani makhalidwe a makina oyendera magetsi ndipo dziwani komwe angayendere
Pali mamembala ambiri m'banja la ma crane, ndipo ma gantry crane, ma bridge crane, ndi ma tower crane aliwonse ali ndi "zapadera" zawo. Ma gantry crane ali ngati "zimphona zazikulu zachitsulo" m'malo ogwirira ntchito m'malo osungiramo katundu ndi malo akuluakulu osungiramo katundu, akuyenda pakati pa makontena ndi katundu tsiku lililonse. Sikuti amangofunika kuthana ndi katundu wolemera wokwera ndi kutera pafupipafupi, komanso amalimbana ndi kuwonongeka kwa mchere ndi fumbi lonyamulidwa ndi mphepo ya m'nyanja, komanso "ubatizo" wa mvula yamkuntho mwadzidzidzi; ma tower crane ndi "Optimus Prime" pamalo omangira. Pamene pansi pawo akupitirira kukwera, amafunika kuchita ntchito zonyamula, kuzungulira ndi kupukutira madzi pafupipafupi, ndipo kuzungulira kulikonse kumayenderana ndi kugwedezeka kwakukulu ndi kugunda. Makhalidwe apadera ogwirira ntchito awa amatsimikizira kuti ali ndi zofunikira zosiyana kwambiri pa mulingo woteteza, mphamvu yonyamula katundu komanso kulimba kwa mphete yopukutira ya chingwe. Chifukwa chake, musanasankhe mphete yopukutira, kufufuza kwathunthu komanso mwatsatanetsatane za malo ogwirira ntchito a crane, kuchuluka kwa ntchito, ndi momwe katundu amagwiritsidwira ntchito kuli ngati kujambula "mapu olondola" olondola pazosankha zina.
Ⅱ. Yang'anani kwambiri pamagetsi ndipo sungani chitetezo chabwino cha magetsi ndi magetsi
(I) Magawo apano
Mphamvu yonyamulira magetsi ndiye chizindikiro chachikulu cha mphete yotsetsereka. Kawirikawiri, pa ma crane ang'onoang'ono amagetsi, mphamvu yoyezedwa ya 50-100A imatha kukwaniritsa zofunikira zoyambira; pomwe pa ma crane akuluakulu a port gantry, chifukwa cha mphamvu yayikulu ya mota yokweza, mota yoyendetsa trolley, ndi mota yoyendetsa trolley, mphamvu yoyezedwa ya mphete yotsetsereka nthawi zambiri imakhala 200-630A. Ngati mphamvu yeniyeni yogwirira ntchito ya mphete yotsetsereka ipitirira mtengo woyezedwa kwa nthawi yayitali, kutentha kwa magawo oyendetsera magetsi kudzawonjezeka. Mwachitsanzo, pa maburashi amkuwa, kutentha kukapitirira 80℃, mphamvu yake yoyendetsera magetsi imachepa, kukana kukhudzana kumawonjezeka, ndipo mphamvu zamagetsi zimatha kuyambitsa, zomwe zimapangitsa kuti maburashi ndi mphete zoyendetsera magetsi ziwonongeke mwachangu.
(II) Magawo a magetsi
Ma voltage amagetsi omwe amagwiritsidwa ntchito kwambiri pama cranes ndi 380V, 400V, 690V, ndi zina zotero. Mu malo opangira magetsi a mafakitale, magetsi amasinthasintha mkati mwa ± 10%, kotero mphete yolowera iyenera kukhala ndi mphamvu yosinthasintha yamagetsi ambiri. Mwachitsanzo, ma cranes omwe amagwiritsidwa ntchito mumakampani opanga zitsulo amakhala ndi kusokoneza kwakukulu kwa harmonic pamalo ogwirira ntchito. Ndikofunikira kusankha mphete yolowera yokhala ndi voltage yovomerezeka ya 690V komanso ntchito yoteteza ma surge, yomwe imatha kupirira kugwedezeka kwa voltage yoyesedwa nthawi imodzi ka 1.2 kuti iwonetsetse kuti mphamvu yoyendetsedwa bwino imayenda bwino.
(III) Kukana kutentha ndi mphamvu yopirira magetsi
Kukana kwa insulation kumasonyeza momwe insulation yamagetsi imagwirira ntchito pa mphete yotsetsereka, yomwe nthawi zambiri imafunika kukhala yoposa 500MΩ; mayeso a mphamvu yokhazikika ayenera kukwaniritsa mphamvu yamagetsi ya 1500V, ndipo sipayenera kukhala kuwonongeka kapena kuphwanyika kwa mphindi imodzi kuti zitsimikizire kuti mphete yotsetsereka ikugwira ntchito bwino pamalo ovuta amagetsi.
Ⅲ. Kuphatikiza kwa mphete yolowera ndi zofunikira za chingwe
Ubale pakati pa mphete yolumikizira chingwe ndi chingwe uli ngati "giya ndi unyolo". Kungogwirizana kwambiri ndi komwe kungatheke kugwira ntchito bwino. Posankha mphete yolumikizira, m'mimba mwake wakunja kwa chingwe, kuchuluka kwa ma cores ndi zinthuzo ndizo zinthu zofunika kwambiri. Kutseguka kwa mphete yolumikizira kuyenera kukhala kwakukulu ndi 1-2mm kuposa m'mimba mwake wakunja wa chingwe kuti zitsimikizire kuti chingwecho chikuyikidwa bwino; kuchuluka kwa ma channel kumatsimikiziridwa malinga ndi kuchuluka kwa ma cores a chingwe, ndipo nthawi zambiri ma channel otsala 1-2 amasungidwa.
Pa zingwe zowongolera zamitundu yambiri, ngati dera la pakati ndi 0.75-2.5mm², kukana kwa mphete yolumikizira kuyenera kulamulidwa mkati mwa 50mΩ kuti zitsimikizire kuti kutumiza kwa chizindikiro sikusokonezedwa. Potengera chingwe cha YC cholemera chopangidwa ndi rabara, nthawi zambiri chimagwiritsidwa ntchito polumikizira mota ya crane. Utali wake wopindika nthawi zambiri umakhala wowirikiza nthawi 6-8 kuposa mainchesi akunja a chingwe. Chifukwa chake, chimayenera kufananizidwa ndi mphete yolumikizira yokhala ndi burashi yosinthasintha kwambiri. Kupanikizika kwa burashi yolumikizira kumasungidwa pa 0.15-0.25N/cm² kuti muchepetse kuwonongeka pakati pa chingwe ndi mphete yolumikizira.
Ⅳ. Limbitsani chitetezo ndikuwonjezera kusinthasintha kwa chilengedwe
Malo ogwirira ntchito a ma crane nthawi zambiri amakhala ndi zovuta zambiri, ndipo kutentha kwambiri, kutentha kochepa, chinyezi, fumbi, kuukira kwa mpweya wowononga ndi zina ndizofala. Zinthu zoopsa zachilengedwe izi, monga "adani osawoneka", nthawi zonse zimawopseza magwiridwe antchito ndi moyo wa mphete zolowetsa ng'oma ya chingwe. Chifukwa chake, kusankha mphete yolowetsa yokhala ndi mulingo woyenera wotetezera malinga ndi malo enieni ogwirira ntchito kuli ngati kuvala "zida zodzitetezera" zolimba za mphete yolowetsa.
Pamadoko akunja okhala ndi mphepo yamkuntho ya m'nyanja ndi mafunde, ndikofunikira kusankha mphete yotchingira yokhala ndi mulingo woteteza wa IP67, yomwe ingaletse fumbi kulowa ndipo imatha kumizidwa m'madzi akuya mita imodzi kwa mphindi 30 popanda kulowa madzi; m'mafakitale otentha achitsulo ndi mafakitale opangira maziko, kutentha mu workshop kumatha kufika pamwamba pa 60℃, ndipo mphete zotchingira zosatentha kwambiri ziyenera kusankhidwa, zomwe kutentha kwake ndi -40℃-120℃, ndipo zipangizo zotsekera mphira za silicone zimagwiritsidwa ntchito, zomwe zimakhala ndi kukana kukalamba bwino.
V. Kuwunika mozama za makhalidwe a makina kuti zitsimikizire kuti ntchito yake ndi yokhazikika
(I) Liwiro ndi mphamvu
Pamene crane ikuyenda, liwiro la mphete yotsetsereka limasiyana kwambiri. Liwiro la mphete yotsetsereka ya crane ya mlatho nthawi zambiri limakhala 10-30r/min; liwiro la mphete yotsetsereka yoyendetsedwa ndi makina otsetsereka a crane ya nsanja imatha kufika 50-80r/min. Posankha mphete yotsetsereka, liwiro lake loyesedwa liyenera kukhala lokwera ndi 20% kuposa liwiro lenileni logwirira ntchito kuti zitsimikizire kuti pali malire otetezeka. Nthawi yomweyo, mphamvu yoyambira iyenera kuganiziridwa. Kawirikawiri, mphamvu yoyambira ya mphete yotsetsereka imafunika kuti isapitirire nthawi 1.5 kuposa mphamvu yoyesedwa kuti ipewe kuwonongeka kwa kapangidwe ka mkati chifukwa cha mphamvu yochulukirapo panthawi yoyambira.
(II) Moyo wa makina ndi kukana kuvala
Moyo wa makina a mphete yopindika umayesedwa ndi kuchuluka kwa ma rotations, ndipo zinthu zapamwamba zimatha kufika nthawi 50 miliyoni mpaka 100 miliyoni. Ma bearing ake amkati amagwiritsa ntchito ma bearing a mpira ozama kwambiri okhala ndi katundu wosinthika wa 10-50kN; burashiyo imapangidwa kwambiri ndi carbon-graphite alloy, ndipo kuuma kwake kumayendetsedwa ndi 40-60HA Shore hardness kuti zitsimikizire kuti sizingawonongeke bwino ndikuchepetsa nthawi yokonza.
(III) Kugwedezeka ndi magawo a kugwedezeka
Pamalo omanga, kuthamanga kwa kugwedezeka komwe kumapangidwa ndi ma cranes a nsanja panthawi yogwira ntchito kumatha kufika 5 - 10m/s², ndipo kuthamanga kwa kugwedezeka kumatha kufika 50 - 100m/s². Zingwe zotsetsereka ziyenera kupambana mayeso a kugwedezeka (pafupipafupi 10 - 500Hz, amplitude 0.75mm) ndi mayeso a kugwedezeka (mafunde a half-sine, kuthamanga kwa peak 50g, nthawi ya 11ms) kuti zitsimikizire kuti ntchito ikuyenda bwino panthawi yogwira ntchito yovuta.
Ⅵ. Sankhani wopanga mphete yotchingira yokhala ndi mitundu yapamwamba komanso ntchito yabwino yogulitsira pambuyo pogulitsa.
M'misika ya mphete zolumikizira ma cable reel, mtundu wa malonda umasiyana. Kusankha mtundu wodalirika kuli ngati kupeza nyali yowala m'nyanja yayikulu. Ingiant Technology ili ndi mbiri yabwino, chidziwitso chochuluka komanso mphamvu zaukadaulo mumakampani opanga ma cable reel DHK038 series slip ring, ndipo nthawi zambiri imakhala ndi miyezo yokhwima yopanga komanso njira yowongolera bwino. Kuyambira kugula zinthu zopangira mpaka kuwongolera njira zopangira, mpaka kuwunika kwa mafakitale, ulalo uliwonse umakonzedwa kuti utsimikizire kuti mphete iliyonse yolumikizira ikhoza kukwaniritsa zofunikira zapamwamba. Utumiki wabwino kwambiri wotsimikizira pambuyo pogulitsa ndi "chitsimikizo" chomwe ingiant imapereka kwa ogwiritsa ntchito. Pogwiritsa ntchito mphete yolumikizira, vuto likangochitika, gulu la akatswiri pambuyo pogulitsa limatha kuyankha mwachangu ndikupereka chithandizo chaukadaulo ndi ntchito munthawi yake, monga "mvula yanthawi yake", kuchepetsa nthawi yogwira ntchito ya zida ndikuchepetsa kutayika kwachuma komwe kumachitika chifukwa cha kulephera kwa zida.
VII. Mafunso Ofunsidwa Kawirikawiri
Q1. N’chiyani chimayambitsa nthunzi m’ma slip rings?
A1. Kusakhudzana bwino: Burashi yawonongeka kwambiri, ndipo malo olumikizirana ndi mphete yoyendetsera magetsi achepa, zomwe zimapangitsa kuti kukana kwa magetsi kuchuluke komanso kuphulika kukhale koopsa. Pakadali pano, maburashi atsopano amafunika kusinthidwa kuti atsimikizire kuti kuyanjana pakati pa burashi ndi mphete yoyendetsera magetsi kuli kopitilira 80%.
Kuchuluka kwa mphamvu yamagetsi: Mphamvu yeniyeni yogwira ntchito imaposa mphamvu yovomerezeka ya mphete yotsetsereka, zomwe zimapangitsa kuti ziwalo zoyendetsera magetsi zitenthe ndipo mafunde amagetsi ayambe. Mphamvu yamagetsi iyenera kuwerengedwanso ndipo mphete yotsetsereka ya zofunikira zoyenera iyenera kusankhidwa.
Zinthu Zachilengedwe: M'malo okhala ndi fumbi komanso chinyezi, pamwamba pa mphete yoyendetsera mpweya pali dothi, zomwe zimakhudza kukhudzana kwa magetsi. Mphete yolowera iyenera kutsukidwa nthawi zonse kuti ikhale yoyera komanso youma.
Q2: Kodi mungadziwe bwanji ngati mphete yolumikizira ikufunika kukonzedwa?
A2: Phokoso logwira ntchito: Ngati mphete yotsetsereka ipanga phokoso losazolowereka komanso loopsa panthawi yogwira ntchito, ikhoza kukhala chifukwa cha kuwonongeka kwa mabearing kapena zigawo zamkati zotayirira, ndipo makinawo ayenera kuyimitsidwa kuti akayang'aniridwe.
Kutentha kosayenera: Pamene kutentha kwa pamwamba pa mphete yotsetsereka kupitirira 70℃, zimasonyeza kuti pakhoza kukhala kutentha kochepa kapena kukana kwambiri kukhudzana, komwe kuyenera kufufuzidwa nthawi yake.
Kutumiza chizindikiro chosazolowereka: Ngati chizindikiro chowongolera chachedwa kapena chatayika, kapena kutumiza kwa mphamvu sikukhazikika, ndikofunikira kuwona ngati kulumikizana kwa magetsi kwa mphete yotsetsereka ndi kwabwinobwino.
Q3: Kodi mungasankhe bwanji mphete zopindika zopangidwa ndi zipangizo zosiyanasiyana?
A3: Mphete yotchingira ya aluminiyamu: kulemera kopepuka, kutentha bwino, koyenera ma cranes ang'onoang'ono omwe amafunikira kulemera, koma kukana dzimbiri kofooka.
Mphete yosapanga dzimbiri yotchinga: ili ndi mphamvu komanso kukana dzimbiri, yoyenera kugwiritsidwa ntchito m'malo ozizira komanso owononga, monga ma cranes m'madoko ndi mafakitale a mankhwala.
Mphete yopukutira yapulasitiki yaukadaulo: magwiridwe antchito abwino oteteza kutentha ndi mtengo wotsika, nthawi zambiri amagwiritsidwa ntchito potumiza chizindikiro cha ma crane okhala ndi zofunikira zamagetsi zambiri komanso katundu wochepa.
Mwachidule, kusankha mphete zolumikizira ng'oma za chingwe za ma crane kumafuna "ukadaulo wolondola" womwe umaganizira bwino mawonekedwe ogwirira ntchito, magawo amagetsi, kusintha kwa chingwe, kuteteza chilengedwe, mawonekedwe amakina, malonda pambuyo pa malonda ndi zina. Pambuyo pofufuza bwino komanso kuwunika mwatsatanetsatane ndi kuwunika, mphete zoyenera kwambiri zolumikizira crane zitha kusankhidwa, kuti "chimphona" cha mafakitale ichi chikhale champhamvu kwambiri pakugwira ntchito, kugwira ntchito bwino, mokhazikika komanso mosamala, ndikuyika mphamvu yopitilira mu mafakitale.
Nthawi yotumizira: Epulo-19-2025