Akụkọ mmepe nke crawler bulldozers
Onye America Benjamin Holt mepụtara traktọ ụdị track (nke a makwaara dị ka crawler dozer) nke ọma na 1904. E hiwere ya site na ịwụnye bulldozer na-ebuli mmadụ n'ihu traktọ crawler.Ike n'oge ahụ bụ igwe uzuoku.Mgbe nke ahụ gasịrị, a rụpụtara ụdị crawler nke ike gas na mmanụ mmanụ ụgbọala na-anya n'ụzọ gara nke ọma, a rụpụtakwara agụba bulldozer site na ibuli akwụkwọ ntuziaka ruo n'ibuli eriri waya.
Benjamin Holt bụkwa otu n'ime ndị malitere Caterpillar Inc. na United States.Na 1925, 5Holt Manufacturing Company na CL Best Bulldozer Company jikọrọ aka wee guzobe ụlọ ọrụ Caterpillar Bulldozer, na-aghọ onye nrụpụta akụrụngwa bulldozer mbụ n'ụwa.N'afọ 1931, a gbapụrụ n'usoro mmepụta nke mbụ nke 60 bulldozers nwere engine dizel.Site n'ọganihu nke teknụzụ na-aga n'ihu, igwe mmanụ dizel na-arụ ọrụ bulldozer niile, na igwe hydraulic na-ebuli agụba bulldozer na scarifiers niile.
Na mgbakwunye na ụdị crawler, bulldozers nwekwara ụdị taya taya, bụ nke pụtara ihe dị ka afọ iri ka e mesịrị karịa ụdị crawler.N'ihi na crawler bulldozers na-arụ ọrụ nke ọma na-arụ ọrụ nke ọma ma nwee ike na-arụsi ọrụ ike karị, ụdị dị iche iche na ọnụ ọgụgụ nke ngwaahịa ha karịrị nke ndị taya taya n'ụlọ na ná mba ọzọ.
Na mba ụwa, Caterpillar bụ ụlọ ọrụ na-emepụta ihe na-ewu ihe owuwu kachasị n'ụwa.Ndị na-agbagharị crawler ya gụnyere usoro 9 nke nnukwu, ọkara na obere D3-D11, D11 RCD kachasị ukwuu, na ike ụgbọ elu mmanụ dizel ruru 634kw;Japan Ụlọ ọrụ Komatsu nọ n'ọkwa nke abụọ, na ọ malitere naanị iwebata ma mepụta D50 crawler bulldozer na 1947.
Enwere usoro 13 nke crawler bulldozers, site na D21-D575, nke kacha nta bụ D21, mmanụ dizel engine flywheel ike bụ 29.5kw, nke kasị ukwuu bụ D575A-3SD, diesel engine flywheel ike ruru 858kw, ọ bụkwa nnukwu bulldozer na ụwa;Onye na-emepụta bulldozer e ji mara ya bụ Liebheer Group nke Germany (Liebheer), onye nrụgide hydrostatic na-akwali ndị na-ebu ya.Mgbe ihe karịrị afọ iri nke nnyocha na mmepe, na nkà na ụzụ ulo oru a prototype na 1972, na malitere uka mmepụta na 1974. PR721-PR731 na PR741 hydrostatic mbanye crawler bulldozer, n'ihi mmachi nke hydraulic components, ya kacha ike bụ naanị 295Kw na ugbu a, ihe nlereanya bụ PR751 Ngwuputa.
Ndị na-emepụta bulldozer atọ dị n'elu na-anọchite anya ọkwa kachasị elu nke crawler bulldozers n'ụwa taa.Ọtụtụ ndị ọzọ na-emepụta si mba ọzọ nke crawler bulldozers, John Deere, Case, New Holland na Deresta, nwekwara ọkwa dị elu nke teknụzụ mmepụta ihe.
Mmepụta nke bulldozers na China malitere naanị mgbe ntọala New China gasịrị.Na mbụ, a na-etinye bulldozer na traktọ ọrụ ugbo.Site na mmepe nke akụ na ụba mba, ọchịchọ nke ọkara na nnukwu crawler bulldozers na nnukwu ogbunigwe, nchekwa mmiri, ọdụ ọkụ na ngalaba njem na-abawanye.Ọ bụ ezie na ụlọ ọrụ na-emepụta ihe na-emepụta ihe na nnukwu crawler bulldozer nke obodo m etolitela nke ukwuu, ọ nweghị ike gboo mkpa nke mmepe akụ na ụba mba.mkpa.
Iji mezuo nke a, ebe ọ bụ na 1979, obodo m ejirila nke ọma webata teknụzụ mmepụta, nkọwapụta usoro, ụkpụrụ teknụzụ na sistemu akụrụngwa nke crawler bulldozers sitere na Komatsu Corporation nke Japan na Caterpillar Corporation nke United States.Ụkpụrụ nke ngwaahịa teknụzụ Komatsu na-achị na 1980 na 1990.
Site na 1960 ruo ugbu a, ọnụ ọgụgụ nke ndị na-emepụta ụlọ nke bulldozers kwụsiri ike na ihe dị ka 4. Ihe kpatara ya bụ na nhazi chọrọ nke ngwaahịa bulldozer dị elu ma sie ike, na mmepụta oke na-achọ nnukwu ego, ya mere ụlọ ọrụ nkịtị anaghị anwa anwa. iji tinye ụkwụ n'ụzọ dị mfe.Otú ọ dị, na mmepe nke ahịa, malite na "Eightth ise afọ Atụmatụ", ụfọdụ nnukwu na ọkara-sized ụlọ ụlọ ọrụ malitere ịrụ ọrụ bulldozers concurrently dị ka ha onwe ha ike, dị ka Inner Mongolia No. 1 Machinery Factory, Xuzhou Loader Factory, wdg, na-agbasa otu ụlọ ọrụ bulldozer.
N'otu oge ahụ, e nwekwara ọnụ ọgụgụ dị nta nke ụlọ ọrụ malitere ịda mbà n'ihi nlekọta adịghị mma na mkpa mmepe ahịa, ma ụfọdụ ahapụlarị ụlọ ọrụ ahụ.
Ka ọ dị ugbu a, ndị isi ụlọ na-emepụta bulldozers bụ:
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. ., wdg.
Na mgbakwunye na mmepụta nke bulldozers, ụlọ ọrụ ndị a kpọtụrụ aha n'elu amalitewokwa itinye ụkwụ n'ichepụta ihe ndị ọzọ na-emepụta ihe na-ewu ụlọ.Dịka ọmụmaatụ, Shantui na-arụpụtakwa rollers okporo ụzọ, graders, excavators, loaders, forklifts, wdg.
Oge nzipu: Sep-24-2022
