Raws li lawv cov qauv kev ua haujlwm, jacks feem ntau muab faib ua ob pawg: mechanical thiab hydraulic. Hydraulic jacks, vim lawv qhov zoo xws li kev ua haujlwm - txuag kev ua haujlwm, kev ruaj ntseg siab, thiab kho qhov siab nqa, tau dhau los ua qhov kev xaiv tseem ceeb hauv kev lag luam, kev tsim kho, thiab kev kho tsheb. Cov kev ntsuam xyuas hauv qab no qhia meej txog kev siv cov jacks los ntawm peb qhov loj: cov qauv txheej txheem, daim ntawv thov scenarios, thiab cov qauv kev lag luam.
Cov Ntsiab Cai thiab Kev Siv Core
Hydraulic jacks xa siab los ntawm hydraulic system. Lawv cov khoom tseem ceeb muaj xws li lub tog raj kheej, piston, lub twj tso kua mis lub cev, thiab li qub. Thaum qhov kev khiav hauj lwm tuav thawb lub twj tso kua mis lub cev, cov roj hydraulic nkag mus rau hauv lub tog raj kheej los ntawm ib qho - txoj kev valve, thawb lub piston upward, yog li tsim lifting quab yuam. Thaum txo qis, cov roj siab tso tawm los ntawm lub siab nyem valve, thiab lub piston poob rov qab. Qhov kev tsim no tso cai rau kev nqa ntawm ob peb tons lossis kaum tawm tons nrog cov kev ua haujlwm me me (xws li phau ntawv siv twj lossis hluav taws xob tsav), ua rau nws tsim nyog rau cov xwm txheej uas xav tau siab precision thiab siab loads. Piv txwv li, hauv kev kho tsheb, hydraulic jacks tuaj yeem nqa tsheb sai rau kev hloov tsheb yooj yim lossis kev tshuaj xyuas chassis; nyob rau hauv kev tsim kho kev lag luam, lawv feem ntau yog siv los txhawb cov kab teeb thiab kab, kho cov cuab yeej qib, los yog kev ruaj ntseg ib ntus cov khoom hnyav. Mechanical jacks (xws li cov ntsia hlau jacks) siv lub hauv paus ntsiab lus ntawm cov ntsia hlau tsav los tsa lossis txo qhov lifting thaiv los ntawm tig lub hau. Lawv yog cov yooj yim hauv cov qauv thiab tsis tshua muaj nqi, tab sis lawv cov lifting ceev yog qeeb thiab lawv lub peev xwm load feem ntau qis dua hydraulic jacks. Lawv tsim nyog rau lub teeb yuag, qis - zaus siv cov xwm txheej, xws li cov chaw nres tsheb hauv tsev lossis kev tu cov cuab yeej me me.
