Rarraba na bulldozers, masana'antar sarkar bulldozer ta Indiya

Rarraba na bulldozers, masana'antar sarkar bulldozer ta Indiya

Wani Ba’amurke Benjamin Holt ya samu nasarar ƙera Dozer Crawler (wanda aka fi sani da crawler dozer) a cikin 1904. An kafa ta ta hanyar shigar da injin ɗagawa da hannu a gaban tarakta. A lokacin, wutar lantarki ce injin tururi. Daga baya, an ƙirƙiri dozers masu rarrafe da wutar lantarki ta yanayi da injin mai. Har ila yau, an ƙera buldoza daga ɗagawa da hannu zuwa ɗaga igiya. Benjamin Holt kuma yana daya daga cikin wadanda suka kafa kamfanin Caterpillar Inc. a Amurka. A shekara ta 1925, Kamfanin Holt Manufacturing Company da C 50. Best Bulldozer Company sun haɗu don samar da Kamfanin Caterpillar Bulldozer, ya zama kamfanin farko na duniya na kayan aikin bulldozer, kuma ya yi nasarar kaddamar da kashi na farko na 60 da injunan dizal a 1931. Tare da ci gaba da ci gaba na fasaha, injin daskarewa yana da wutar lantarki da injin dizal da aka yi amfani da shi ta hanyar amfani da injin dizal. ta hydraulic cylinders. Baya ga na'ura mai rarrafe, akwai kuma na'urar bullar taya, wanda ya kai kimanin shekaru goma bayan na'ura mai rarrafe. Crawler bulldozers suna da mafi kyawun aikin mannewa kuma suna iya yin tasiri sosai, don haka iri-iri da adadin samfuransu a gida da waje sun fi na taya bulldozers nesa ba kusa ba. A duniya, Caterpillar shine babban kamfanin kera injiniyoyin injiniya a duniya. Katar bulldozers ɗinta sun haɗa da manya, matsakaita da ƙanana jerin D3-D11, D11 RCD mafi girma, kuma ƙarfin injin dizal ya kai 634kw; Komatsu, wani kamfani na Japan, ya zo na biyu. A cikin 1947, ta fara ƙaddamarwa da samar da crawler bulldozers D50. Akwai 13 jerin crawler bulldozers, daga D21-D575, mafi ƙanƙanta shi ne D21, da flywheel ikon dizal 29.5kw, mafi girma shi ne D575A-3SD, da flywheel ikon dizal 858kw. Haka kuma ita ce babbar bulldozer a duniya a halin yanzu; Wani ƙera na musamman na bulldozer shine rukunin Liebheer na Jamus. Matsalolin ruwanta duk suna motsa su ta hanyar matsi na hydrostatic. Bayan fiye da shekaru goma na bincike da ci gaba, wannan fasaha ta gabatar da wani samfuri a cikin 1972. A cikin 1974, ta fara yawan samar da PR721-PR731 da PR741 hydrostatic driven crawler bulldozers. Saboda ƙayyadaddun abubuwan haɗin hydraulic, iyakar ƙarfinsa shine 295Kw kawai, kuma ƙirar sa shine ma'adinai na PR751.

Manyan masana'antun bulldozer guda uku na sama suna wakiltar matakin mafi girma na crawler bulldozers a duniya a yau. Sauran masana'antun ketare na crawler bulldozers, irin su John Deere, Case, New Holland da Dreista, suna da babban matakin fasahar samarwa. Kamfanin sarkar bulldozer na Indiya
An fara samar da na'urorin bulldozer a kasar Sin bayan kafuwar sabuwar kasar Sin. Da farko, an sanya bulldozer a kan taraktan noma. Tare da haɓakar tattalin arzikin ƙasa, buƙatar matsakaita da manyan masu rarrafe a cikin manyan ma'adanai, kiyaye ruwa, tashoshin wutar lantarki da sassan sufuri na ƙaruwa. Ko da yake masana'antar kera matsakaita da manyan masu rarrafe a kasar Sin sun samu babban ci gaba, amma ba za ta iya biyan bukatun ci gaban tattalin arzikin kasa ba. Don haka, tun daga shekarar 1979, kasar Sin ta ci gaba da gabatar da fasahar samar da kayayyaki, dalla-dalla dalla-dalla, ka'idojin fasaha da tsarin kayan na'ura na crawler bulldozers daga Kamfanin Komatsu na Japan da Kamfanin Caterpillar na Amurka. Bayan narkewa da sha, kuma an magance mahimman fasahohi, an samar da tsarin da kayayyakin fasahar Komatsu suka mamaye a shekarun 1980 da 1990. Kamfanin sarkar bulldozer na Indiya

Tun daga shekarun 1960, an sami masana'antun kusan guda huɗu a cikin masana'antar bulldozer na cikin gida. Dalili kuwa shi ne cewa abubuwan da ake buƙata na sarrafawa na samfuran bulldozer suna da yawa, wahalar tana da girma, kuma yawan samarwa yana buƙatar babban jari. Don haka, kamfanoni na yau da kullun ba su kuskura su shiga cikin sauki. Duk da haka, tare da bunkasuwar kasuwa, tun daga "shirin shekaru biyar na takwas", wasu manya da matsakaitan masana'antu a kasar Sin sun fara aiki a lokaci guda tare da buldoza bisa ga karfin nasu, kamar Inner Mongoliya No.1 Machinery Factory, Xuzhou Loader Factory, da dai sauransu, da kuma fadada tawagar masana'antu bulldozer. A lokaci guda kuma, wasu tsirarun masana’antu sun fara durkushewa sakamakon rashin gudanar da aiki da kuma bukatar su dace da ci gaban kasuwa, wasu kuma sun janye daga sana’ar. A halin yanzu, na gida bulldozer masana'antun, yafi hada 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., Yituo Construction Machinery Co., Ltd., Yituo Construction Machinery Co., Ltd., samar da sama da samar da kamfanoni a cikin Bugu da kari ga samar da inji Co., Ltd. sauran kayayyakin gine-gine, irin su Shantui, wanda kuma ke samar da rollers, graders, excavators, loaders, forklifts, da dai sauransu. masana'antar sarkar bulldozer ta Indiya.