Ijoka njani ubunzima?

UJack luhlobo lwezixhobo zokuphakamisa ezilula kunye nezincinci ezisebenzisa iintsimbi zentsimbi njengezixhobo zokusebenza kunye nokuphakamisa izinto ezinzima ngesibiyeli esingaphezulu okanye uzipho olusezantsi ngaphakathi kwesibetho.Isetyenziswa kakhulu kwiifektri, imigodi, ezothutho kunye namanye amasebe njengokulungiswa kwezithuthi kunye nokunye ukuphakamisa, inkxaso kunye neminye imisebenzi.Ubume bayo bulula kwaye buqinile, buguquguqukayo kwaye buthembekile, kwaye umntu omnye unokuthwala kwaye asebenze.

IiJacks zohlulwe zibe ziindidi zoomatshini kunye ne-hydraulic.Iijack ezisetyenziswa ngokuqhelekileyo ziquka iijekhi zehydraulic, iijekhi ezijijekileyo kunye neejekhi zombane.

Ngokomgaqo, umgaqo osisiseko wokuhanjiswa kwe-hydraulic ngumthetho wePascal, oko kukuthi, uxinzelelo lolwelo kuyo yonke indawo luyahambelana.Kwi-balance system, uxinzelelo olwenziwe yi-piston encinci luncinci, ngelixa uxinzelelo olwenziwe yi-piston enkulu nalo lukhulu kakhulu, olunokugcina ulwelo olungagungqiyo.Ngoko ke, ngokuhanjiswa kolwelo, iingcinezelo ezahlukeneyo kwiiphelo ezahlukeneyo zinokufumaneka, kwaye injongo yokuguqulwa inokufezekiswa.Ijekhi yehydraulic eqhele ukusetyenziswa ngabantu isebenzisa lo mgaqo ukufezekisa ukuhanjiswa kwamandla.

Inxaki esisiseko yoxinzelelo olumileyo (p=p0+ ρ GH), xa uxinzelelo lwangaphandle lwe-P0 lolwelo oluqulethwe kwisingxobo esivaliweyo lutshintsha, okoko ulwelo luhlala lukwimo yalo yantlandlolo engatshintshiyo, uxinzelelo nakweyiphi na indawo kulwelo luya kutshintsha. ngomlinganiselo ofanayo, ongumgaqo-siseko wokutshintshela uxinzelelo okanye umgaqo wePascal.

Ukuba uxinzelelo oluthile lusetyenziswa kwipiston enye kwi-hydraulic system, ukunyuka koxinzelelo olufanayo kuya kuveliswa kwenye ipiston.Ukuba indawo yepiston yesibini ngamaxesha e-10 yepiston yokuqala, amandla asebenza kwi-piston yesibini aya kunyuka ukuya kumaxesha angama-10 episton yokuqala, ngelixa uxinzelelo kwiipiston ezimbini lusalingana.

I-screw jack itsala isiphatho ngapha nangapha, ikhupha uzipho, oko kukuthi, ityhala i-ratchet clearance ukuze ijikelezise, ​​kwaye igiya encinci ye-bevel iqhuba igiya enkulu ye-bevel ukujikelezisa isikrufu sokuphakamisa, ukuze umkhono wokuphakamisa ube nokuphakanyiswa. okanye ukuthotywa ukufezekisa umsebenzi wokuphakamisa uxinzelelo, kodwa akukho lula njengejekhi ye-hydraulic.