Ukuqina Kwezinga Lokwemba: I-Hitachi EX1800 / EX1900 Track Sprocket Wheel Assembly

1. Intshayelelo: Umqolo we-Ultra-Class Excavation

Kwicandelo lemigodi emikhulu, ukumba imigodi, kunye nokwakhiwa kwezakhiwo ezinkulu, uthotho lweHitachi EX1800 kunye ne-EX1900 zimele incopho yokusebenza kwe-hydraulic excavator. Ngobunzima bokusebenza obudlula iitoni ezili-180 zeemetric kunye namandla eebhakethi ukuya kuthi ga kwi-15 cubic metres, aba matshini basebenza phantsi kweemeko ezingapheliyo—imithwalo enamandla aphezulu, izinto ezirhabaxa, kunye nemijikelo yokutshintsha eqhubekayo.

I-Track Sprocket Wheel Assembly (ekwabizwa ngokuba yi-track chain sprocket assy) yinxalenye ebalulekileyo ye-drivetrain eguqula amandla e-hydraulic abe yi-traction. Kwimisebenzi yokumba kwibhanti yobhedu yaseChile, kwimigodi yeplatinum yaseMzantsi Afrika, okanye kumasimi e-iron ore aseRashiya, ukuthembeka kwale ndibano kulawula ngokuthe ngqo iinjongo zemveliso kunye neendleko ngetoni nganye.

Eli nqaku libonelela ngohlalutyo olunzulu lobuchwephesha lwendibano ye-sprocket yomgangatho we-OEM echongwe ngamanani eenxalenye1028990,4451622kunye4637264, eyenziwe phantsi kweenkqubo ezingqongqo zeINDLELA YE-CQC—ingcali ekhethekileyoumzi-mveliso wemvelaphikwayeumenziizinto ezinzima ze-EXC ezithwala ngaphantsi kwesithuthi.

2. Iinkcukacha zobugcisa kunye nokutshintshiselana

2.1 Ukuchonga iCandelo

Amanani amathathu eenxalenye ahambelana nokwahluka kwendibano ye-sprocket esetyenziswa kwiiplatifomu zeHitachi EX1800 kunye ne-EX1900:

• 1028990: Ngokwesiqhelo ibhekisa kwi-sprocket wheel assembly epheleleyo (ihabhu + iringi) yeenkqubo ezithile zokugqibela zedrive.
• 4451622: Idla ngokunxulunyaniswa neringi ye-sprocket ehlukanisiweyo okanye indibano yeeyunithi ze-EX1900 zemodeli yamva nje.
• 4637264: Idla ngokubonisa ikhithi ye-sprocket segment okanye iringi yokunxiba yebolt-on, evumela ukutshintshwa kwentsimi ngaphandle kokususa i-drive motor yokugqibela.

Ezi zixhobo zenzelwe ukunxibelelana neyunithi yokunciphisa ukuhamba yeHitachi (edla ngokuba nojongano lokufakelwa olune-splined okanye olune-bolted) kwaye zenzelwe iitsheyini zethrekhi ezine-pitch ye-317 mm okanye i-350 mm, kuxhomekeke kulwakhiwo lwe-undercarriage.

2.2 Iimpawu zokwakha ezinzima

Ngokungafaniyo nezixhobo zokumba ezikumgangatho ophakathi, i-sprocket ye-EX1800/EX1900 yakhelwe ukumelana:

• Ukudluliselwa kweTorque ephezulu: Amandla okujikeleza afikelela kwi-1,500 kN·m.
• Ukurhawuzelelwa Okugqithisileyo: Ukudibana rhoqo nelitye eliqinileyo, isinyithi, kunye nomthwalo ogqithisileyo.
• Ubunzima bokukhwankqiswa: Bubangelwa kukungalingani komhlaba kunye notshintsho olukhawulezileyo kwicala.

Olu lwakhiwo luhlala luyilwe ngokwahlukeneyo, luquka amacandelo amaninzi amazinyo ane-bolt-on (ngokuqhelekileyo amacandelo ama-3 ukuya kuma-5 kwi-sprocket nganye) anokutshintshwa ngokwahlukeneyo, nto leyo enciphisa kakhulu ixesha lokungasebenzi kokulungisa kunye neendleko zokugcina izinto.

3. Unyango lweMetallurgy kunye nobushushu kwiimeko zemigodi

Ukuze ifaneleke njengecandelo le-EXC eliphantsi kwesithuthi esinzima, i-sprocket kufuneka idlule kwiimfuno zezixhobo ezisemgangathweni.INDLELA YE-CQCisebenzisa inkqubo yokuvelisa ehambelana ne-ISO 9001:2015 kunye neendlela ezilungileyo zokusebenzisa imboni yezemigodi.

3.1 Udidi lwezinto

• Intsimbi Eyenziweyo: Intsimbi ye-chromium-molybdenum ene-alloy ephezulu (umz., i-40CrNiMo okanye elinganayo) ekhethelwe ukuqina okunzulu kunye nokumelana nokudinwa kokudibana okuqengqelekayo.
• Iimpawu zoomatshini: Amandla okuvelisa ≥ 900 MPa, amandla okutsalwa ≥ 1,080 MPa, ukuqinisekisa ukuthembeka kwesakhiwo phantsi kwemithwalo ephezulu.

3.2 Iprotocol yoNyango loBushushu

• Ngokuqiniswa: Indandatho yonke ye-sprocket idlula kwi-austeniting kunye ne-quenching ukuze kufikelelwe kubunzima obufanayo be-core (35–40 HRC).
• Ukuqina Kweprofayili Yamazinyo: Icala lamazinyo kunye nerediyasi yengcambu ziqiniswe kwi-induction ukuya kwi-52–58 HRC ukuya kubunzulu be-12–15 mm, okwenza umphezulu ungagugi ngelixa ugcina umongo oqinileyo ukuze ukwazi ukufunxa iimpembelelo.
• Ukulinganisela: Umjikelo wokulinganisela olawulwayo ukhulula uxinzelelo olushiyekileyo kwaye unciphise umngcipheko wokusasazeka kweentanda kwiindawo ezibandayo (umz., ukumbiwa kwemigodi yaseSiberia).

3.3 Uqinisekiso loMgangatho

Ibhetshi nganye yemveliso iphantsi kwezi zizathu zilandelayo:

• Uvavanyo lwe-Ultrasonic (UT): Ukufumanisa iindawo ezingenanto zangaphakathi okanye izinto ezifakiweyo kwi-forging.
• Ukuhlolwa kweMagnetic Particle (MPI): Ukuhlolwa kwe-100% kwendawo yamazinyo kunye nemingxuma yebholiti.
• Ukuqinisekiswa koBume: Ukuqinisekiswa kwe-CMM kobubanzi bepitch, iprofayili yamazinyo, kunye nokuchaneka kwesangqa sebolt ukuya ngaphakathi kwe-±0.5 mm.

4. Iimfuno zeMarike yeSithili kunye neeProfayili zeSicelo

IiHitachi EX1800 kunye ne-EX1900 zisetyenziswa kwiindawo zemigodi ezifuna kakhulu umhlaba kunye neendawo zokwakha ezinzima. Indibano ye-sprocket kufuneka ivumelane neenkcukacha zokusebenza kwengingqi.

4.1 UMzantsi Melika (eChile, ePeru, eBrazil)

• Okusingqongileyo: Imigodi ephakamileyo (iimitha ezingaphezu kwama-4,000), isinyithi sekopolo negolide, ukukrazulwa okukhulu.
• Imfuneko: Ukumelana nokukrala okuphezulu kunye neengubo ezichasene nokuguguleka ukuze zimelane nezinto ezithambileyo.
• Inkcazo yoShishino:"Rueda de cadena para minería pesada"– abaqhubi bafuna ii-sprockets ezinobomi obude bokuguguleka kunye nokuthembeka kokugcinwa kwebholithi phantsi kokungcangcazela.

4.2 UMzantsi Afrika kunye ne-Afrika esemaZantsi kweSahara

• Okusingqongileyo: Imigodi enzulu, ilitye eliqinileyo (i-quartzite, i-granite), uthuli olugqithisileyo.
• Imfuneko: Ukuvalwa okuqinileyo kwe-interface yokugqibela ye-drive kunye nokumelana nokungena kothuli.
• Inkcazo yoShishino:"Izixhobo ezingaphantsi kwenqwelo yokuthutha abantu abasebenzisa izinto ezinzima"– ukufumaneka kweekhithi zecandelo lokutshintsha ngokukhawuleza intsimi kubalulekile ukunciphisa ukulibaziseka kwemveliso.

4.3 IRashiya kunye neCIS (eKuzbass, eSiberia)

• Okusingqongileyo: I-Permafrost, amaqondo obushushu afikelela kwi -45°C, iqhwa ligcwele kakhulu.
• Imfuneko: Ukuqina kwempembelelo ebandayo; intsimbi kufuneka igcine amaxabiso eCharpy V-notch angaphezu kwama-27 J kwi -40°C.
• Inkcazo yoShishino:“Звездочка гусеничного хода для карьерных экскаваторов”– ababoneleli kufuneka banike izatifikethi zezinto eziqinisekisa iipropati zobushushu obuphantsi.

4.4 IYurophu (eScandinavia, eJamani)

• Indalo: Iiprojekthi zokwembiwa kwamatye aqinileyo, ukudilizwa, kunye neziseko zophuhliso ezinemigaqo engqongqo yokusingqongileyo.
• Imfuneko: Ukuthobela imiyalelo yoomatshini be-EU kunye nokulandeleka kwezinto.
• Inkcazo yoShishino:“Okokuqala-Ersatzteilqualität für Großbagger”– ukulingana ngokuchanekileyo kunye nexesha elide lenkonzo akunakuxoxiswana ngalo.

4.5 Emantla Melika (e-USA, eKhanada)

• Okusingqongileyo: Iisanti zeoyile (eAlberta), ukumbiwa kwamalahle (eWyoming), iziseko zophuhliso ezinkulu.
• Imfuneko: Ukumelana nokuguguleka okuphezulu kwisanti ye-silica erhabaxa kakhulu kunye nesanti yeoyile.
• Inkcazo yoShishino:"I-sprocket yokuqhuba umgangatho wemigodi"– abaqhubi balandelela iindleko ngeyure, belindele iiyure ezingaphezu kwama-6,000 zobomi benkonzo kwizicelo ezahlukeneyo.

4.6 Korea kunye neMpuma-mpuma yeAsia

• Okusingqongileyo: Iingcango, iiprojekthi ezinkulu zoluntu, ukwakhiwa konxweme.
• Imfuneko: Umatshini wokulungisa ngokuchanekileyo kunye nokuhambelana neentambo zendlela ezifumaneka kwindawo yakho.
• Inkcazo yoShishino:“대형 굴삭기 스프라켓”– abavelisi bavavanywa ngokuhambelana okulinganayo kunye nokuthembeka kokuhanjiswa.

5. Ubuchule bokuVelisa:INDLELA YE-CQCnjengeFektri yoMthombo

Njengomzi-mveliso ozinikeleyo kunye nomvelisi wezixhobo ze-EXC ezithwala abantu abanzima, i-CQC TRACK yahlulahlula ngokudibanisa ngokuthe nkqo kunye nobuchule bobunjineli.

5.1 Amandla eFektri

• Ukubumba Nokubumba: Imigca yokubumba yangaphakathi ekwaziyo ukuvelisa ii-sprocket blanks ukuya kuthi ga kwi-2,500 mm ububanzi.
• Umatshini wokugaya we-CNC: iziko zomatshini ezi-5-axis zokuchonga amazinyo ngokuchanekileyo kunye nokubhoboza imingxunya yebholiti.
• Izixhobo Zonyango Lobushushu: Iiseli zokuqinisa ezizenzekelayo ezisebenzisa ukwenziwa kwe-induction kunye nokubeka iliso kubushushu ngexesha langempela ukuqinisekisa ubunzulu obuhambelanayo bobunzima.
• Umgca Wokugquma: Ukusetyenziswa kwe-polyurethane okanye i-epoxy coatings ezihlala ixesha elide ukuze zikwazi ukumelana nokugqwala kwiindawo zaselwandle nezinomswakama ophezulu.

5.2 Inkxaso yoBunjineli

I-CQC TRACK inikezela:

• Ubunjineli obubuyela umva: Ubuchule bokuphinda ii-sprockets kwiisampulu ezigugileyo, ukuqinisekisa ubume obuchanekileyo kwiimodeli ezindala.
• Ukwenziwa ngokwezifiso: Ukulungiswa kweeprofayili zamazinyo okanye iipateni zebholithi ukuze zilungele uqwalaselo lokugqibela olungaqhelekanga.
• Amaxwebhu oBugcisa: Ukubonelela ngemizobo enobukhulu, iiprofayili zobunzima, kunye neziqinisekiso zezinto (EN 10204 3.1) ukuhlangabezana neemfuno zokuthenga.

5.3 Ukuhambelana kwe-OEM

Iindibano zeenombolo zenxalenye1028990, 4451622, 4637264zenzelwe ukufanisa okanye ukudlula iinkcukacha zokuqala zeHitachi, ezibonelela:

• Ukutshintshana: Ukutshintshwa kwebholti ngqo ngaphandle kotshintsho.
• Ukutshintshana kweCandelo: Ukuhambelana neebholiti zecandelo le-OEM kunye neewashers.

6. Ukuphucula iindleko zomjikelo wobomi

Kwimikhumbi emikhulu yemigodi, ukugcinwa kwezithuthi ezingaphantsi kwesithuthi kuthetha inxalenye enkulu yeendleko zokusebenza. Ukukhetha indibano yesprocket efanelekileyo kunefuthe:

• Ukunxitywa kweTrack Chain: Amazinyo e-sprocket aqiniswe kakuhle andisa ubomi bokubambelela ngokugcina i-pitch ibambekile ngokufanelekileyo.
• Ukuncitshiswa kwexesha lokungasebenzi: Uyilo oluneziqendu luvumela ukutshintshwa kweziqendu zamazinyo ngamanye ngaphantsi kweeyure ezi-4, xa kuthelekiswa nokutshintshwa kwendibano epheleleyo okungathatha utshintsho olupheleleyo.
• Ulawulo lwempahla: Ukugcina amacandelo ezinto ezigciniweyo endaweni yamavili apheleleyo kunciphisa indawo yempahla kunye nendawo yokugcina impahla.

7. Isiphelo: Ubunjineli bexesha eliphezulu lokuphumla

IiHitachi EX1800 kunye ne-EX1900 zenzelwe ukuvelisa, kodwa izinto zazo ezingaphantsi kwesithuthi zimisela uzinzo lwaloo mveliso. I-Track Sprocket Wheel Assembly—nokuba ibizwa ngokuba yi-1028990, 4451622, okanye i-4637264—kufuneka inike ukuqina okungagungqiyo, ukulingana ngokuchanekileyo, kunye nokugcinwa lula.

Ukusebenzisana nomzi-mveliso okhethekileyo kunye nomenzi ofana neCQC TRACK kuqinisekisa:

• I-Metallurgy yoMgangatho weMigodi: Yenzelwe ukuguguleka kunye nempembelelo.
• Ikhonkco Lobonelelo lweHlabathi: Iinkqubo zokugcina impahla ezenzelwe iindawo zemigodi zengingqi (e-Antofagasta, eGoli, eYakutia, e-Alberta, njl.njl.).
• Ukulandeleka kunye neSatifikethi: Amaxwebhu apheleleyo ukuze ahlangabezane nemigangatho yokuthengwa kwemigodi.

Kubaqhubi bemigodi, abanini bezixhobo, kunye nabasasazi be-aftermarket, ukutyala imali kwi-sprocket as i-premium sprocket ayisiyiyo nje into yokutshintsha—yinyathelo elicwangcisiweyo lokunciphisa iindleko ngetoni nganye kunye nokwandisa ukusetyenziswa kweeasethi.

Isikhanyeli: *I-Hitachi, i-EX1800, kunye ne-EX1900 ziimpawu zorhwebo ezibhalisiweyo ze-Hitachi Construction Machinery Co., Ltd. Iinombolo zecandelo eziyi-1028990, 4451622, kunye ne-4637264 zibhekiselwe kwiinjongo zokubhekisa kuphela. I-CQC TRACK ngumvelisi ozimeleyo wezixhobo ze-undercarriage emva kwemarike kwaye ayinxulumananga ne-Hitachi.*