Amateka yiterambere ya crawler bulldozers
Imashini yo mu bwoko bwa track (izwi kandi ku izina rya crawler dozer) yatunganijwe neza n’umunyamerika Benjamin Holt mu 1904. Yashinzwe no gushyira buldozeri iterura abantu imbere ya romoruki.Imbaraga muri kiriya gihe zari moteri ya parike.Nyuma yibyo, buldozeri yo mu bwoko bwa crawler itwarwa ningufu za gaze karemano na moteri ya lisansi yatejwe imbere bigenda bikurikirana, kandi icyuma cya buldozer nacyo cyatejwe imbere kuva muntoki kugeza kuzamura umugozi.
Benjamin Holt kandi ni umwe mu bashinze Caterpillar Inc. muri Amerika.Mu 1925, 5Holt Manufacturing Company na CL Best Bulldozer Company bahujwe no gushinga Caterpillar Bulldozer Company, ibaye uruganda rwa mbere rukora ibikoresho bya buldozer.Mu 1931, icyiciro cya mbere cya buldozeri 60 zifite moteri ya mazutu cyatsinzwe neza ku murongo w’umusaruro.Hamwe nogukomeza gutera imbere kwikoranabuhanga, buldozeri zose zashyizwemo moteri ya mazutu, kandi buldozer ibyuma na scariferi byose bizamurwa na silindiri hydraulic.
Usibye bulldozers yo mu bwoko bwa crawler, buldozeri ifite na buldozeri yo mu bwoko bwa tine, yagaragaye nyuma yimyaka icumi ugereranije na buldozeri yo mu bwoko bwa crawler.Kuberako crawler bulldozers ifite imikorere myiza yo gufatira hamwe kandi irashobora gukurura abantu benshi, ubwinshi nubwinshi bwibicuruzwa byabo birenze kure ibya tine buldozeri mu gihugu ndetse no hanze yarwo.
Ku rwego mpuzamahanga, Caterpillar nisosiyete nini ikora imashini zubaka imashini ku isi.Bulldozers yayo yikurikiranya ikubiyemo urukurikirane 9 rwa D3-D11 nini, ntoya na ntoya, D11 RCD nini, kandi ingufu za moteri ya mazutu igera kuri 634kw;Ubuyapani Isosiyete ya Komatsu yaje ku mwanya wa kabiri, itangira kumenyekanisha no gukora D50 crawler bulldozer mu 1947.
Hano hari serie 13 za crawler bulldozers, kuva D21-D575, umuto ni D21, moteri ya mazutu ya mazutu ni 29.5kw, nini ni D575A-3SD, ingufu za moteri ya mazutu igera kuri 858kw, nayo ni buldozeri nini muri isi;Ikiranga bulldozer kiranga ni Ubudage bwa Liebheer Group (Liebheer), buldozeri zose ziterwa numuvuduko wa hydrostatike.Nyuma yimyaka irenga icumi yubushakashatsi niterambere, ikoranabuhanga ryatangije prototype mumwaka wa 1972, ritangira kubyazwa umusaruro mwinshi mumwaka wa 1974. PR721-PR731 na PR741 hydrostatic drive crawler bulldozer, kubera kugabanya ibice bigize hydraulic, imbaraga zayo ntarengwa ni 295Kw kuri ubungubu, icyitegererezo ni PR751 ubucukuzi.
Ibicuruzwa bitatu bya bulldozer byavuzwe haruguru byerekana urwego rwo hejuru rwa crawler bulldozers kwisi kwisi.Abandi banyamahanga benshi bakora uruganda rukora bulldozers, John Deere, Case, New Holland na Deresta, nabo bafite urwego rwo hejuru rwikoranabuhanga rwo gukora.
Umusaruro wa buldozers mubushinwa watangiye nyuma yubushinwa bushya.Ku ikubitiro, buldozeri zashyizwe kuri traktor zubuhinzi.Iterambere ry’ubukungu bw’igihugu, icyifuzo cya buldozeri nini nini nini nini mu birombe binini, kubungabunga amazi, sitasiyo y’amashanyarazi n’ishami rishinzwe gutwara abantu.Nubwo uruganda rwanjye ruciriritse kandi runini rukurura inganda za bulldozer rwateye imbere cyane, ntirwashoboye guhaza ibikenewe mu iterambere ry’ubukungu bw’igihugu.bikenewe.
Kugira ngo ibyo bishoboke, guhera mu 1979, igihugu cyanjye cyagiye gitangiza ikoranabuhanga ry’umusaruro, ibisobanuro bitunganijwe, ibipimo bya tekiniki na sisitemu y’ibikoresho bya crawler bulldozers yo muri Komatsu Corporation yo mu Buyapani na Caterpillar Corporation yo muri Amerika.Igishushanyo cyiganjemo ibicuruzwa byikoranabuhanga bya Komatsu mu myaka ya za 1980 na 1990.
Kuva mu myaka ya za 1960 kugeza magingo aya, umubare w’abakora uruganda rukora buldozeri uhagaze neza nka 4. Impamvu nuko ibisabwa gutunganya ibicuruzwa bya buldozer ari byinshi kandi bigoye, kandi umusaruro mwinshi bisaba ishoramari rinini, bityo ibigo bisanzwe ntibitinyuke gushiraho ikirenge muburyo bworoshye.Icyakora, hamwe n’iterambere ry’isoko, guhera kuri “Gahunda y’imyaka umunani n’umunani”, ibigo bimwe na bimwe binini n’ibiciriritse byo mu gihugu byatangiye gukora buldozeri icyarimwe bitewe n'imbaraga zabo bwite, nk'uruganda rukora imashini za Mongoliya Imbere, Xuzhou Uruganda rwabatwara, nibindi, kwagura itsinda rya bulldozer.
Muri icyo gihe, hari kandi umubare muto w’ibigo byatangiye kugabanuka bitewe n’imicungire mibi n’ibikenewe mu iterambere ry’isoko, ndetse bamwe bamaze kuva mu nganda.
Kugeza ubu, uruganda nyamukuru rukora bulldozers ni:
Shantui Construction Machinery Co., Ltd., Hebei Xuanhua Construction Machinery Co., Ltd., Shanghai Pengpu Machinery Factory Co., Ltd. ., n'ibindi.
Usibye kubyara buldozeri, amasosiyete yavuzwe haruguru yatangiye no gukandagira mu musaruro w’ibindi bikoresho by’ubwubatsi.Kurugero, Shantui nayo itanga ibizunguruka kumuhanda, abiga, abacukuzi, imizigo, forklifts, nibindi.
Igihe cyo kohereza: Nzeri-24-2022
