Isiqulatho
Ii-LHDs zizimise ngokuqinileyo njengenye yezona mpahla zibalulekileyo nezinamandla kwi imigodi ephantsi komhlaba ishishini. Aba matshini bamangalisayo banomsebenzi onzima benzelwe ukunikezela ukusebenza okuphezulu kunye nokusebenza kakuhle, ukuguqula indlela yokusebenza kwemigodi eyenziwayo. Kwiminyaka emininzi edlulileyo, i-landscape yetekhnoloji ye-LHD ibisoloko ivela, kugxilwe kakhulu ekwamkeleni izisombululo eziluhlaza nezizinzileyo. Masingene nzulu kwihlabathi le-LHDs, sijonge iintlobo zazo ezahlukeneyo kwaye sityhile iimfihlo ezingemva kolawulo lwazo kwindawo yemigodi engaphantsi komhlaba.
Imbali yoomatshini be-LHD
Ingqikelelo yee-LHDs yavela phakathi kwenkulungwane yama-20 njengempendulo kwimida yomsebenzi wezandla kwimigodi ephantsi komhlaba. Ii-LHDs zakwangoko ibilulungelelwaniso olusisiseko lwabalayishi bomphezulu, benomthamo onyiniweyo kunye noyilo olulula.
Iminyaka yoo-1960 ukuya kowe-1970 yeza ukuqhubela phambili kwezobuchwephesha njengeenjini ezinamandla ngakumbi, iisistim ezicokisekileyo zehydraulic, kunye neekhabhu zokusebenza ezingcono ezineempawu zokhuseleko ezisisiseko.
Ngeminyaka yee-1980 ukuya kowe-1990, ii-LHDs ziye zaba ziingcali ngakumbi, ngokunyuka kwentlawulo, ukuphuculwa kokusebenza kwepetroli, kunye nokuthuthuzelwa komsebenzisi kunye neempawu zokhuseleko.
Ukusukela ngeminyaka yoo-2000, ngenxa yeenkxalabo zokusingqongileyo, utshintsho olubhekiselele kwi-Hybrid kunye nee-LHD zombane zaqala, kunye nokudityaniswa kwe-automation kunye ne-remote-control technologies, ejolise ekunciphiseni ukukhutshwa kwezinto ezikhutshwayo, ukusebenza okuthe cwaka, kunye nemigodi ekhuselekileyo, esebenzayo ngakumbi.
Intshayelelo kwii-LHDs: Ukutyhilwa koMsebenzi wabo onguNdoqo
I-LHD, okanye oomatshini be-“Load Haul & Dump”, luhlobo olukhethekileyo lwabalayishi abathwala ukufana nabalayishi bemveli abangaphambili. Nangona kunjalo, baye bakrola i-niche ekhethekileyo kwimisebenzi yemigodi engaphantsi komhlaba. Indima yabo ephambili kukulayisha ngokukhuselekileyo nangokufanelekileyo kunye nokuthutha ilitye eliqinileyo kunye nezinye izinto phakathi kweesayithi ezahlukeneyo ngaphakathi kwendawo yemigodi. Ngoyilo olugxile kwimveliso, ii-LHDs zifumene indlela yazo kwi-75 yepesenti yemigodi yentsimbi engaphantsi komhlaba.
Ngaphandle kokuba nezantya zokuhamba ezicothayo xa kuthelekiswa nesiqhelo abalayishi besiphelo sangaphambili, bapakisha i-punch ukuya kwi-50 yepesenti yokwandisa umthamo wokulayisha kwifom yefom edibeneyo kunye ne-space-efficient form factor. Ngaphezu koko, iinjini zabo ezincinci kodwa ezomeleleyo zinegalelo kulawulo olungcono lokukhutshwa kwezinto ezikhutshwayo, ezihambelana nokukhula kwenkxalabo yokusingqongileyo kweshishini.
Iinkcukacha Zokwakha: Yenzelwe uMmandla ongaphantsi komhlaba
Ukwakhiwa kwee-LHDs kubenza bahluke kwabanye abalayishi bangaphambili. Banophawu lweenyawo oluncinci kunye neprofayili ende, emxinwa. Olu yilo lwahlukileyo aluqinisekisi kuphela ukuguquguquka okungenamthungo kuluhlu olubanzi lweendawo zokusebenza, ukusuka kwiitonela ezimxinwa ukuya kwiindawo zokumisa ezinwebileyo kodwa kwandisa amandla azo okulayisha. Nangona imilo emide kunye nemxinwa inokuchaphazela kancinane ukushukumiseka, ngaphezu kokubuyekeza ngokwenza ukuba oomatshini bakwazi ukuphatha umthamo omkhulu wezinto. Lo mthamo unyusiweyo wokulayisha wenze ii-LHDs zibe yeyona ndlela ikhethwayo kwiiprojekthi zemigodi ephantsi komhlaba, apho ukulungelelaniswa kwendawo kunye nokuphathwa kwemathiriyeli ngokufanelekileyo kubaluleke kakhulu.
Amacandelo angundoqo oomatshini be-LHD
Ibhakethi liyinxalenye ebalulekileyo, ihluka ngokwemilo kunye nobukhulu bezinto ezahlukeneyo kunye nokusetyenziswa, ukugqiba umthamo womthwalo. Iingalo zokulayisha, i-hydraulically actuated, phakamisa kwaye unciphise ibhakethi ngokuchanekileyo, uyilo lwazo luchaphazela ukusebenza kakuhle kokulayisha. Uloliwe amandla, kunye injini okanye motor yombane kunye Ukuhanjiswa, inika amandla okuhamba kunye nokusebenza kwe-hydraulic. Ii-axles zixhasa i-LHD kunye nokudlulisa amandla kumavili okanye kwiingoma, ezibonelela nge-traction kunye nokuzinza. Isixokelelwano sobuchwephesha be-hydraulic sinamandla okunyakaza kwecandelo kwaye ibandakanya impompo, iivalvu, iisilinda, kunye nemibhobho. Ikhabhinethi yabaqhubi ibonelela ngendawo ekhululekileyo nekhuselekileyo, exhotyiswe ngolawulo lwe-ergonomic, ukubonakala kakuhle, kunye neempawu zokhuseleko ezifana ne-ROPS kunye neFOPS, kunye nokuthuthuzela kwezidalwa kunye nabahloli bokusebenza.
Imveliso: Amandla okuqhuba ngasemva kweMpumelelo ye-LHD
Ii-LHDs ziyafana namaxesha omjikelo ophuculweyo womsebenzi. Ukusebenza kwabo okugudileyo, okudityaniswe nenkqubo yokutsala ephezulu, akukhulisi nje kuphela imveliso yonke kodwa kukhokelela ekuncitshisweni kweendleko zokusebenza nokugcinwa kwazo. Iinjini ezihlangeneyo kodwa ezinamandla kwii-LHDs zibonelela ngeenzuzo ezimbini zokunciphisa ukukhutshwa kunye nomthwalo wobushushu, kunye nokukhawuleza ngokukhawuleza kunye nokunciphisa ukusetyenziswa kwamafutha. Ezi mpawu ziphawulekayo zizibeke ngokuqinileyo ii-LHDs njengamahashe okusebenza ajolise kwimveliso, ekwaziyo ukuhambisa umsebenzi ogqwesileyo nakwiimeko zokusebenza ezinzima.
Abavelisi abaphambili abanjengoKomatsu baye baphucula ngakumbi ukulingana kwemveliso ngokuzisa izinto ezintsha ezifana ne-SR Hybrid Drive. Le nkqubo yangoku ye-Switched Reluctance Hybrid Drive yenzelwe ukubamba kwaye isetyenziswe ngokutsha amandla okuqhobosha, okukhokelela ekusebenzeni okuphezulu kwepetroli, amaxesha omjikelezo omfutshane, kunye nokukhawulezisa okukhokelela kwishishini.
Iingqwalasela zoKhuseleko: Ukukhusela abaSebenzi kuzo zonke iindleko
Ukhuseleko luphambili oluphambili kuyilo lwee-LHDs. Uninzi lweemodeli zixhotyiswe ngesuti ebanzi yeempawu zokhuseleko olwandisiweyo. Ezi ziquka iinkqubo zokuqhobosha ezingasafunekiyo/ezingakhuselekanga, iindlela zokumisa ngexesha likaxakeka, kunye ne-ROPS/FOPS (iSakhiwo soKhuseleko lwe-Rollover/iSakhiwo soKhuseleko lweNto esiwayo) kwikhabhinethi yabasebenzisi. Yonke inkalo yoyilo lomatshini, ukusuka kumaqonga kunye nezinyuko ukuya kwizitepsi eziphathwayo kunye nezinyuko, zenziwe ngobuchule kucingelwa ukhuseleko lomsebenzisi. Ukongeza, ii-LHDs zibonelela ngeenkqubo zokunqunyanyiswa eziphuculweyo, ezingapheleli nje ekunciphiseni ukungcangcazela kwiindawo ezinamatye kodwa zikwaqinisekisa ukusebenza ngokutyibilikayo kwiindawo zokusebenza ezirhabaxa, zikhusela intlalo-ntle yabasebenzi kunye nokuphucula amava abo omsebenzi ngokubanzi.
Ukuthembeka: Yakhelwe ukumelana neyona mingeni inzima phantsi komhlaba
Iifreyimu zentsimbi ezomeleleyo zee-LHDs zisebenza njengekhaka ngokuchasene nokuguga kunye nokukrazuka kunye neempembelelo ezingenakuthintelwa kwiimeko ezinzima zemigodi yangaphantsi komhlaba. Aba matshini benzelwe ukunyamezela ezona ndawo zisebenza kakhulu, ziqinisekisa ukusebenza okungaphazanyiswa. Ixhotyiswe ngeenkqubo eziphambili zehydraulic ezineempompo zepiston, ii-LHDs zonwabela ukusebenza okupholileyo kunye nobomi benkonzo eyandisiweyo. Uninzi lubandakanya inkqubo ye-lubrication ye-othomathikhi ephakathi, egcina iindawo ezibalulekileyo zoomatshini zixutywe kakuhle, ukunciphisa ukuphindaphinda kokugcinwa rhoqo kunye nokunciphisa ukuphazamiseka kwinkqubo yemigodi. Oku kuthembeka okungagungqiyo sisiseko sempumelelo ye-LHDs kushishino lwemigodi ephantsi komhlaba.
Umthamo wokuHlawula: Ukudibana neeMfuno ezahlukeneyo zeMigodi
Ii-LHDs ziza kuluhlu olubanzi lweesayizi, nganye ibonelela ngomthamo owahlukileyo wokuhlawulwa. Ezi ziqhele ukusuka kwi-6,000 ukuya kwi-22,000 lbs. (2,700 ukuya kwi-10,000 kg) kwaye inokufikelela kwi-55,000 lbs enomtsalane. (25,000 kg). Ukuhlangabezana neemfuno ezithile zemisebenzi eyahlukeneyo yemigodi ephantsi komhlaba, abavelisi banikezela ngeendlela ezahlukeneyo zeebhakethi. Ubukhulu bebhakethi busuka kwi-1 ukuya kwi-13 cubic yards (0.8 ukuya kwi-10 cubic metres), kunye nobude be-emele buhluka phakathi kwe-6 kunye ne-8.2 yeenyawo (i-1.8 kunye ne-2.5 yeemitha). Olu luhlu lubanzi lobungakanani kunye namandla omthwalo ohlawulayo luvumela ii-LHD ukuba zibonelele ngezisombululo ezilungelelanisiweyo kulo lonke uhlobo lwemeko yemigodi ephantsi komhlaba, ukusuka kwimisebenzi emincinci ukuya kwimigodi yemizi-mveliso emikhulu.
Iikhabhathi zabaSebenzi: Indawo yokuNtuthuzela kunye nokusebenza ngokufanelekileyo
Kumashumi eminyaka akutshanje, amanyathelo abalulekileyo enziwe ekwandiseni intuthuzelo yabasebenzisi kunye nokhuseleko ngaphakathi kweekhabhinethi ze-LHD. Abavelisi abaphambili babandakanye inkitha yentofontofo kunye neempawu zokhuseleko kwiikhabhinethi zabo zabaqhubi, ukulungelelanisa imisebenzi kunye nokuqinisa imveliso. Iziboniso ze-Smart kunye ne-diagnostic edibeneyo kunye ne-metrics yokusebenza kwexesha langempela inika abaqhubi ukuqonda okubalulekileyo ekusebenzeni komatshini. Ulawulo lwe-ergonomic, ludityaniswe neempawu ezizikhethelayo njengezihlalo ezimisiweyo emoyeni, ziqinisekisa intuthuzelo enkulu ngexesha leeyure ezinde zokusebenza, ukunciphisa ukudinwa kwabaqhubi kunye nokwandisa ukwaneliseka komsebenzi jikelele.
Ukuzenzekela: Ukuguqula imisebenzi ye-LHD
Ii-LHDs ziye zamkela ixesha lokuzenzekelayo ngeengalo ezivulekileyo. Ulawulo oluphezulu oluzenzekelayo lwenziwe lula imisebenzi enzima, evumela abaqhubi ukuba bayenze ngokucofa iqhosha. Oku akuncedi kuphela abaqhubi ukuba bagxininise ngakumbi kumsebenzi okhoyo kodwa kukwakhuthaza imveliso enkulu kunye nokusebenza kakuhle. Abavelisi abahlukeneyo baye bazisa iindlela ezahlukeneyo zokuzenzekelayo kunye neenkqubo zokulawula ezihlakaniphile, zonke ezijoliswe ekulungiseleleni imijikelezo yomthwalo kunye nokwandisa ukusebenza kakuhle. Ukufumaneka kolawulo olukude kuye kwandise ngakumbi amandla e-LHDs, okwenza ukuba basebenze ngokukhuselekileyo kwiindawo ezinobungozi ezinobungozi apho amatye awelayo abeka ingozi enkulu. Ulawulo oluzenzekelayo luye lwavela njengenye indlela ekhuselekileyo kwii-LHD zesintu ezisetyenziswa ngabantu kwiimeko ezinzima ngolo hlobo.
I-Fuel-Based & Hybrid LHDs: Indlela eya kwiKamva eliHlaza
Ngokwemveli, ii-LHDs zithembele kumafutha edizili ekusebenzeni kwazo. Nangona kunjalo, kwiminyaka yakutshanje, kukho utshintsho oluphawulekayo olubhekiselele kwiimodeli ze-hybrid kunye ne-electric powered. Ii-Hybrid LHDs, ezikwaziyo ukusebenza kuzo zombini i-diesel fuel kunye nebhetri okanye amandla ombane, zinika inkitha yeenzuzo. Basebenzisa amafutha amancinci, okubangela ukukhutshwa okuphantsi kunye nokunciphisa i-carbon footprint xa kuthelekiswa nabalingane babo abaqhelekileyo. Ukukhutshwa okunciphileyo kukhatshwa yimveliso ephantsi yobushushu, nto leyo enciphisa imfuno kunye neendleko zokungenisa umoya kwindawo yasezimayini.
Ngeempembelelo zabo ezintle zokusingqongileyo kunye nendibaniselwano enqwenelekayo yokusetyenziswa kwamafutha aphantsi kunye nokusebenza okuphezulu, amandla omxube akhawuleza abe ngumgangatho woshishino. Ii-LHDs zombane okanye ibhetri, ngokukodwa, zibonelela ngokusebenza kakuhle kunye neendleko eziphantsi kwexesha elide, kunye neenjini zombane ezisebenza ngokuqhelekileyo phakathi kwe-75 kunye ne-150 yamandla eehashe kunye ne-voltage ephakathi kwe-380 ukuya kwi-550 volts.
Abavelisi be-LHD abadumileyo
Ehlabathini lokwenziwa kwe-LHD (Umthwalo, Haul, Dump), iibrendi ezininzi zivelele. I-Caterpillar inzima kakhulu, idume ngee-LHD zayo ezihexayo nezivelisayo. Oomatshini babo, abaneenjini ezinamandla kunye nee-drivetrains ezithembekileyo, banokuhlangabezana neemfuno ezahlukeneyo zemigodi. I-Komatsu igxile ekuthuthuzelekeni kwabasebenzisi kunye nokhuseleko, ukudibanisa itekhnoloji yanamhlanje njengolawulo olukrelekrele kunye nemihlanganiselwa. Ii-LHD ze-Sandvik zichanekile, zihlala zine-automation kunye ne-remote – ulawulo lomsebenzi osebenzayo ophantsi komhlaba. I-Atlas Copco ikhulisa imveliso kunye neendleko - ukunciphisa, kunye neempawu ezifana ne-traction elungileyo kunye ne-ergonomic operator cabins. I-Epiroc, ekhutshwe kwi-Atlas Copco, igxininisa amandla - ukusebenza kakuhle kunye nokusebenza okuphezulu, ukubonelela nge-LHD ethembekileyo kunye neqinile emva - inkxaso yokuthengisa kwimisebenzi yemigodi ephantsi komhlaba.
Isiphelo: ii-LHDs-Ikamva loMgodi ophantsi komhlaba
Ukuqukumbela, uphononongo lwethu lwe-LHDs ngethemba lukunike ukuqonda okubanzi kwaba matshini bamangalisayo kunye nendima yabo ebaluleke kakhulu kumjikelo wemigodi ephantsi komhlaba. Njengoko ishishini lezimayini liqhubeka nokuvela ngenxa yenkqubela phambili yobuchwepheshe kunye neemfuno zemathiriyeli yehlabathi, ugqaliselo kwimveliso kunye nozinzo aluzange lube namandla. Ii-Hybrid LHDs ezinamanqanaba akhulayo omatshini wokuzenzela zikulungele ukudlala indima ebaluleke ngakumbi kwixesha elizayo elingekude, ukubumba indlela esikhupha ngayo kunye nokuthutha izimbiwa phantsi komhlaba.
