Karohano ea li-bulldozer, fektheri ea ketane ea li-bulldozer ea India
Crawler dozer (eo hape e tsejoang e le crawler dozer) e ile ea ntlafatsoa ka katleho ke Benjamin Holt, Moamerika, ka 1904. E ile ea thehoa ka ho kenya bulldozer e phahamisang ka letsoho ka pel'a terekere e hulang. Ka nako eo, motlakase e ne e le enjene ea mouoane. Hamorao, li-crawler dozer tse tsamaisoang ka matla a khase ea tlhaho le enjene ea peterole li ile tsa ntlafatsoa. Lehare la bulldozer le lona le ile la ntlafatsoa ho tloha ho phahamiseng ka letsoho ho ea ho phahamiseng thapo ea terata. Benjamin Holt le eena e ne e le e mong oa bathehi ba Caterpillar Inc. United States. Ka 1925, Holt Manufacturing Company le C 50. Best Bulldozer Company li ile tsa kopana ho theha Caterpillar Bulldozer Company, ea e-ba moetsi oa pele lefatšeng oa lisebelisoa tsa bulldozer, 'me tsa atleha ho qala sehlopha sa pele sa li-bulldozer tse 60 tse nang le lienjene tsa disele ka 1931. Ka tsoelo-pele e tsoelang pele ea theknoloji, bulldozer e 'nile ea tsamaisoa ke lienjene tsa disele, 'me lehare la bulldozer le scarifier kaofela li phahamisoa ke li-cylinder tsa hydraulic. Ntle le li-bulldozer tsa mofuta oa crawler, ho boetse ho na le li-bulldozer tsa mofuta oa mabili, tse ka bang lilemo tse leshome hamorao ho feta li-bulldozer tsa mofuta oa crawler. Li-bulldozer tsa Crawler li na le ts'ebetso e betere ea ho khomarela 'me li ka sebelisa matla a maholo, kahoo mefuta le bongata ba lihlahisoa tsa tsona lapeng le kantle ho naha li feta haholo tsa li-bulldozer tsa mabili. Machabeng, Caterpillar ke k'hamphani e kholo ka ho fetisisa ea tlhahiso ea mechini ea boenjiniere lefatšeng. Li-bulldozer tsa eona tsa caterpillar li kenyelletsa letoto le leholo, le mahareng le le lenyenyane la D3-D11, e leng D11 RCD e kholo ka ho fetisisa, 'me matla a flywheel a enjene ea diesel a fihla ho 634kw; Komatsu, k'hamphani ea Japane, e ile ea beoa boemong ba bobeli. Ka 1947, e ile ea qala ho hlahisa le ho hlahisa li-bulldozer tsa crawler tsa D50. Ho na le letoto la li-bulldozer tse 13 tse hulang ka thata, ho tloha ho D21-D575, e nyane ka ho fetisisa ke D21, matla a flywheel a enjene ea diesel ke 29.5kw, e kholo ka ho fetisisa ke D575A-3SD, 'me matla a flywheel a enjene ea diesel ke 858kw. Hape ke bulldozer e kholo ka ho fetisisa lefatšeng hajoale; Moetsi e mong ea ikhethang oa bulldozer ke Liebheer Group ea Jeremane. Li-bulldozer tsa eona kaofela li tsamaisoa ke khatello ea hydrostatic. Kamora lilemo tse fetang leshome tsa lipatlisiso le nts'etsopele, theknoloji ena e hlahisitse mohlala ka 1972. Ka 1974, e ile ea qala ho hlahisa li-bulldozer tse hulang ka thata tsa PR721-PR731 le PR741. Ka lebaka la moeli oa likarolo tsa hydraulic, matla a eona a phahameng ke 295Kw feela, 'me mohlala oa eona ke oa PR751.
Bahlahisi ba bararo ba bulldozer ba kaholimo ba emela boemo bo phahameng ka ho fetisisa ba li-bulldozer tse hahabang lefatšeng kajeno. Bahlahisi ba bang ba kantle ho naha ba li-bulldozer tse hahabang, joalo ka John Deere, Case, New Holland le Dreista, le bona ba na le boemo bo phahameng ba theknoloji ea tlhahiso. Feme ea ketane ea bulldozer ea India
Tlhahiso ea li-bulldozer Chaena e qalile ka mor'a ho theoa ha New China. Qalong, bulldozer e ile ea kenngoa terekereng ea temo. Ka nts'etsopele ea moruo oa naha, tlhoko ea li-bulldozer tse mahareng le tse kholo merafong e meholo, paballo ea metsi, liteishene tsa motlakase le mafapha a lipalangoang e ntse e eketseha. Le hoja indasteri ea tlhahiso ea li-bulldozer tse mahareng le tse kholo Chaena e hatetse pele haholo, e ke ke ea hlola e khona ho fihlela litlhoko tsa nts'etsopele ea moruo oa naha. Ka hona, ho tloha ka 1979, Chaena e hlahisitse theknoloji ea tlhahiso ka tatellano, litlhaloso tsa ts'ebetso, maemo a tekheniki le litsamaiso tsa thepa ea li-bulldozer tse tsamaeang ho tsoa Komatsu Company ea Japane le Caterpillar Company ea United States. Kamora hore tšilo ea lijo le ho monya, le mahlale a bohlokoa a sebetsanoe le ona, mohlala o laoloang ke lihlahisoa tsa theknoloji ea Komatsu lilemong tsa bo-1980 le bo-1990 o ile oa thehoa. Feme ea ketane ea li-bulldozer ea India
Ho tloha ka bo-1960, ho bile le bahlahisi ba ka bang bane indastering ea bulldozer ea lapeng. Lebaka ke hore litlhoko tsa ts'ebetso ea lihlahisoa tsa bulldozer li phahame, bothata bo boholo, 'me tlhahiso e ngata e hloka matsete a maholo. Ka hona, likhoebo tse tloaelehileng ha li iteta sefuba ho kenella habonolo. Leha ho le joalo, ka nts'etsopele ea 'maraka, ho tloha "Morero oa Lilemo tse Hlano oa Borobeli", likhoebo tse ling tse kholo le tse mahareng Chaena li qalile ho sebelisa li-bulldozer ka nako e le' ngoe ho latela matla a tsona, joalo ka Inner Mongolia No.1 Machinery Factory, Xuzhou Loader Factory, jj., 'me tsa atolosa sehlopha sa indasteri ea bulldozer. Ka nako e ts'oanang, palo e nyane ea likhoebo e ile ea qala ho theoha ka lebaka la tsamaiso e mpe le tlhoko ea ho ikamahanya le nts'etsopele ea 'maraka,' me tse ling li ikhutsitse indastering. Hona jwale, bahlahisi ba dibulldozer tsa malapeng ba kenyeletsa haholo Shantui Construction Machinery Co., Ltd., Hebei Xuanhua Construction Machinery Co., Ltd., Shanghai Pengpu Machinery Factory Co., Ltd., Tianjin Construction Machinery Factory, Shaanxi Xinhuang Industrial Machinery Co., Ltd., Yituo Construction Machinery Co., Ltd., jj. Ntle le tlhahiso ya dibulldozer, dikhamphani tse boletsweng ka hodimo le tsona di ile tsa qala ho kenya letsoho tlhahisong ya dihlahiswa tse ding tsa mechini ya kaho, tse kang Shantui, e boetseng e hlahisa dirolara tsa ditsela, di-grader, di-excavator, di-loader, di-forklift, jj. Feme ya ketane ya dibulldozer ya India
Nako ea poso: Loetse-21-2022
