Imbali yophuhliso lweebhuldoza ezirhubuluzayo
Itrektara yodidi lwengoma (ekwaziwa njenge-crawler dozer) yaphuhliswa ngempumelelo ngu-American Benjamin Holt ngo-1904. Yasekwa ngokufakela ibulldozer ephakamisa umntu phambi kwetrektara yesikhasi.Amandla ngelo xesha yayiyinjini yomphunga.Emva koko, iibulldozer zohlobo lwesikhasi eziqhutywa ngamandla erhasi yendalo kunye nenjini yepetroli zaphuhliswa ngempumelelo ngokulandelelanayo, kunye neblayidi yebulldozer nayo yaphuhliswa ukusuka ekuphakamiseni ngesandla ukuya ekuphakamiseni iintambo zocingo.
UBenjamin Holt ukwangomnye wabaseki beCaterpillar Inc. eUnited States.Ngo-1925, i-5Holt Manufacturing Company kunye ne-CL Best Bulldozer Company zadityaniswa zenza iCaterpillar Bulldozer Company, yaba yinkampani yokuqala yehlabathi eyenza izixhobo zebulldozer.Ngo-1931, ibhetshi yokuqala yeebhuldoza ezingama-60 ezineenjini zedizili zaqengqelwa ngempumelelo zaphuma kumgca wemveliso.Ngokuqhubela phambili okuqhubekayo kwetekhnoloji, zonke iibulldozer zinikwe amandla ziinjini zedizili, kwaye iiblayidi zebulldozer kunye nezikhafuli zonke ziphakanyiswe ngeesilinda zehydraulic.
Ukongezelela kwiibhuldoza zohlobo lwe crawler, iibulldozer zikwanawo noogandaganda bohlobo lwamatayara, ababonakala malunga neminyaka elishumi kamva kunoogandaganda bohlobo lwe crawler.Ngenxa yokuba iibulldozer ezirhubuluzayo zisebenza kakuhle kwaye zinokutsalela ngakumbi, iintlobo ngeentlobo kunye nobungakanani beemveliso zazo zodlula kude ezo zeebhuldoza zamatayara ekhaya naphesheya.
Kumazwe ngamazwe, iCaterpillar yeyona nkampani inkulu eyenza oomatshini bokwakha ehlabathini.I-bulldozers yayo ye-crawler ibandakanya i-9 uchungechunge lwe-D3-D11 enkulu, ephakathi kunye nencinci, inkulu ye-D11 RCD, kunye ne-injini ye-diesel flywheel amandla afikelela kwi-634kw;EJapan Inkampani yeKomatsu ikwindawo yesibini, kwaye yaqala ukwazisa nokuvelisa ibulldozer ye-D50 crawler ngo-1947.
Kukho iibulldozer eziyi-13 ze-crawler, ukusuka kwi-D21-D575, incinci yi-D21, i-injini ye-diesel flywheel yamandla yi-29.5kw, inkulu yi-D575A-3SD, i-injini ye-diesel flywheel yamandla afikelela ku-858kw, ikwalelona bhuldozer enkulu ihlabathi;Umenzi webulldozer weempawu yiLiebheer Group yaseJamani (Liebheer), iibulldozer zayo zonke ziqhutywa luxinzelelo lwe-hydrostatic.Emva kweminyaka engaphezu kweshumi yophando kunye nophuhliso, iteknoloji yasungula iprototype ngo-1972, kwaye yaqala imveliso ngobuninzi ngo-1974. PR721-PR731 kunye ne-PR741 hydrostatic drive crawler bulldozer, ngenxa yokunciphisa amacandelo e-hydraulic, amandla ayo aphezulu angama-295Kw kuphela ngoku, imodeli PR751 yemigodi.
Aba bathathu bangentla babenzi bebulldozer bamele elona nqanaba liphezulu leebhuldoza ezirhubuluzayo kwihlabathi namhlanje.Abanye abavelisi abaninzi bangaphandle beebhuludoza ezikhasayo, uJohn Deere, Case, New Holland kunye neDeresta, nabo banenqanaba eliphezulu lobugcisa bemveliso.
Ukuveliswa kweebulldozer e-China kwaqala kuphela emva kokusekwa kwe-New China.Ekuqaleni, iibulldozer zafakwa kwiitrektara zezolimo.Ngokuphuhla koqoqosho lwesizwe, imfuno yeebhuldoza ezikhasa eziphakathi nendawo ezinkulu kwimigodi emikhulu, ukugcinwa kwamanzi, izikhululo zamandla kunye namasebe ezothutho iye yanda.Nangona ishishini lelizwe lam lokuvelisa ibulldozer eliphakathi nelikhulu liphuhle kakhulu, alikwazanga ukuhlangabezana neemfuno zophuhliso loqoqosho lwesizwe.isidingo.
Ukuza kuthi ga ngoku, ukusukela ngo-1979, ilizwe lam liye lazisa ngokulandelelana itekhnoloji yemveliso, iinkcukacha zenkqubo, imigangatho yobugcisa kunye neenkqubo zemathiriyeli yeebhuldoza ezikhasayo ezisuka kuKomatsu Corporation yaseJapan kunye neCaterpillar Corporation yaseMelika.Ipateni elawulwa yimveliso yeteknoloji yeKomatsu kwiminyaka ye-1980 kunye ne-1990.
Ukususela kwi-1960 ukuya kuthi ga ngoku, inani labavelisi basekhaya bee-bulldozers lizinzile malunga ne-4. Isizathu kukuba iimfuno zokucwangcisa iimveliso ze-bulldozer ziphezulu kwaye zinzima, kwaye imveliso yobuninzi ifuna utyalo-mali olukhulu, ngoko ke amashishini aqhelekileyo awanabuganga. ukubeka unyawo lula.Nangona kunjalo, ngophuhliso lwemarike, ukuqala "kwiSicwangciso seMinyaka emiHlanu yeSibhozo", amanye amashishini asekhaya amakhulu kunye naphakathi aqala ukusebenzisa i-bulldozers ngaxeshanye ngokwamandla abo, njenge-Inner Mongolia ye-1 Machinery Factory, Xuzhou Umzi-mveliso wokuLayisha, njl., ukwandisa iqela leshishini le-bulldozer.
Kwangaxeshanye, kukwakho nenani elincinane lamashishini aqale ukuhla ngenxa yolawulo olulambathayo kunye neemfuno zophuhliso lweemarike, kwaye amanye sele erhoxile kolu shishino.
Okwangoku, abavelisi abaphambili basekhaya beebulldozer ngaba:
Shantui Construction Machinery Co., Ltd., Hebei Xuanhua Construction Machinery Co., Ltd., Shanghai Pengpu Machinery Factory Co., Ltd., Tianjin Construction Machinery Factory, Shaanxi Xinhuang Machinery Co., Ltd., Yituo Construction Machinery Co., Ltd. ., njl.
Ukongeza kwimveliso yee-bulldozers, iinkampani ezikhankanywe ngasentla ziye zaqalisa ukubeka unyawo ekuveliseni ezinye iimveliso zoomatshini bokwakha.Ngokomzekelo, i-Shantui iphinda ivelise i-roller zendlela, i-graders, i-excavators, i-loaders, i-forklifts, njl.
Ixesha lokuposa: Sep-24-2022
