Feem ntau, nws yog tsim los ntawm cov khoom siv hluav taws xob, cov khoom sib kis, cov cuab yeej mus ncig thiab cov cuab yeej ua haujlwm. Lub hauv paus ntsiab lus: Siv lub thoob txhawm rau khawb cov khoom saum toj lossis hauv qab ntawm cov kabmob, thiab thauj mus rau hauv lub tsheb thauj mus los lossis lub tshuab txav hauv lub ntiaj teb tshem tawm mus rau qhov chaw khaws khoom. Lub tshuab mining nws tus kheej uas siv lub thoob rau shovel exfoliated cov khoom los yog cov ntxhia los ntawm lub ntsej muag ua haujlwm thiab thauj mus rau qhov chaw tso tawm kom tshem tawm. Keeb Kwm: Nws tau ntau dua 130 xyoo txij li thawj phau ntawv excavator tuaj tawm. Nyob rau lub sijhawm no, nws tau dhau los ntawm kev hloov pauv los ntawm cov tshuab hluav taws xob-tsav thoob teb excavators rau hluav taws xob-tsav thiab sab hauv combustion cav-tsav rotary excavators, thiab tag nrho tsis siv neeg hydraulic excavators siv electromechanical-hydraulic integration technology. gradual txoj kev loj hlob.
Raws li kev siv tshuab hydraulic, muaj ib lub tshuab excavator nruab nrog hydraulic backhoe ntawm lub tsheb laij teb hauv xyoo 1940. Thaum ntxov thiab nruab nrab -1950s, ib qho azimuth hydraulic excavator thiab crawler tag nrho hydraulic excavator tau ua tiav. . Thawj qhov kev sim ua hydraulic excavator txais kev siv tshuab hydraulic ntawm lub dav hlau thiab cov cuab yeej siv tshuab, tsis muaj cov khoom siv hydraulic haum rau ntau yam kev ua haujlwm ntawm lub excavator, kev tsim khoom tsis ruaj khov txaus, thiab cov khoom txhawb nqa tsis tiav. Txij li thaum xyoo 1960, hydraulic excavators tau nkag mus rau theem ntawm kev txhawb nqa thiab kev loj hlob zoo. Tus naj npawb ntawm excavator manufacturers thiab ntau yam nyob rau hauv ntau lub teb chaws tau nce sai heev, thiab cov zis tau soared. Los ntawm 1968 mus rau 1970, cov zis ntawm hydraulic excavators suav txog 83 feem pua ntawm tag nrho cov zis ntawm excavators, uas yog ze rau 100 feem pua.
