Relief Valve-Cartridge Hom
Counterbalance li qub nrog kev pab tsav tsheb yog txhais tau tias los tswj kev ua haujlwm dhau. Lub check valve pub dawb ntws
los ntawm cov kev taw qhia valve (chaw nres nkoj 2) mus rau lub load (chaw nres nkoj 1) thaum ib tug ncaj-acting, pilot-pab nyem valve tswj ntws
los ntawm qhov chaw nres nkoj 1 mus rau qhov chaw nres nkoj 2. Pilot pab ntawm qhov chaw nres nkoj 3 txo qis qhov kev teeb tsa zoo ntawm lub pob nyem valve ntawm tus nqi txiav txim los ntawm qhov chaw nres nkoj 3.
pilot piv.
TECHNICAL NTA
Counterbalance li qub yuav tsum tau teem tsawg kawg yog 1.3 npaug ntawm qhov siab tshaj plaws load induced siab.
Tig kev hloov kho clockwise kom txo qhov chaw thiab tso tawm load.
Kev teeb tsa tag nrho ntawm lub moos yog tsawg dua 200 psi (14 bar).
Backpressure ntawm qhov chaw nres nkoj 2 ntxiv rau qhov kev daws teeb meem zoo ntawm qhov sib piv ntawm 1 ntxiv rau qhov piv txwv piv rau lub backpressure.
Reseat tshaj 85% ntawm kev teeb tsa siab thaum lub valve yog txheej txheem teeb tsa. Kev teeb tsa qis dua tus qauv teeb tsa siab tuaj yeem ua rau qis dua feem pua rov dua.
Sun counterbalance cartridges tuaj yeem ntsia tau ncaj qha rau hauv kab noj hniav hauv lub tsev actuator rau kev tiv thaiv ntxiv thiab txhim kho qhov nruj hauv Circuit Court.
Ob daim tshev valve cracking pressures muaj. Siv 25 psi (1,7 bar) kos tshwj tsis yog tias tus actuator cavitation yog ib qho kev txhawj xeeb.
Lub valve no siv cov orifices kom txo qis tus tsav piv thiab yog li ntawd yuav dhau mus txog 40 in³ / min. / 1000 psi (0,7 L / min. / 70 bar) ntawm qhov chaw nres nkoj 2 thiab chaw nres nkoj 3. Qhov no yog ib qhokev txiav txim siab nyob rau hauv master- qhev circuits thiab nyob rau hauv kev ntsuam xyuas ntawm valve-cylinder sib dhos.
Tag nrho 3-chaw nres nkoj counterbalance, load tswj, thiab pilot-to-open check cartridges yog lub cev sib hloov tau (piv txwv li tib txoj kev khiav, tib kab noj hniav rau ib tug ncej loj).
Koom nrog Sun floating style kev tsim kho kom txo tau qhov muaj peev xwm ntawm cov khoom siv sab hauv khi vim kev teeb tsa ntau dhau thiab / lossis kab noj hniav / lub thawvmachining variations.
Kev ua haujlwm
Counterbalance li qub nrog kev pab tsav tsheb yog tsim los rau kev tswj ntawm overrunning load. Covcheck valve pub dawb ntws los ntawm qhov chaw nres nkoj ② mus rau qhov chaw nres nkoj ① thaum ua haujlwm ncaj qha, tsav-pabnyem valve tswj ntws los ntawm chaw nres nkoj ① mus rau chaw nres nkoj ② . Pilot pab ntawm chaw nres nkoj ③ txo qiskev teeb tsa zoo ntawm lub valve nyem ntawm tus nqi txiav txim siab los ntawm kev tsav tsheb sib piv.
NTA
1. Counterbalance li qub yuav tsum tau teem tsawg kawg yog 1.3 npaug ntawm qhov siab tshaj plaws load inducedsiab.
2. Backpressure ntawm chaw nres nkoj ② ntxiv rau qhov kev pab cuam zoo ntawm qhov piv ntawm 1 ntxiv rau tus tsavratio lub sij hawm lub backpressure.
3. Reseat tshaj 85% ntawm qhov teeb tsa siab thaum lub valve yog txheej txheem teeb tsa. Kev teeb tsa qis duatshaj qhov txheej txheem teeb tsa siab tuaj yeem ua rau qis dua qhov feem pua reseat.
4.Factory siab teeb tsa ntawm 30cc / min (2 in3 / min).
Technical yam ntxwv
Ua haujlwm:
Qhov sib npaug valve nrog kev qhib qhib yog siv los tswj cov xwm txheej overload. Cov roj ntws ywj pheej hauv ib qho kev taw qhia los ntawm chaw nres nkoj ② mus rau chaw nres nkoj ①; cov roj yog tsav ncaj qha, thiab tus tsav auxiliary overflows ntawm chaw nres nkoj ① mus rau qhov chaw nres nkoj ②. Chaw nres nkoj ③ yog qhov chaw nres nkoj hla kev tswj hwm, thiab qhov chaw ua haujlwm tau zoo ntawm kev ua haujlwm dhau los raug txo qis raws li tus nqi tswj hwm tus nqi.
Yam ntxwv:
1.Qhov siab tshaj plaws teem siab yog tsawg kawg yog 1.3 npaug ntawm qhov siab tshaj plaws load siab.
2.Lub siab rov qab ntawm qhov chaw nres nkoj ② yog ntxiv rau qhov teeb tsa tus nqi ntawm qhov nyem valve raws li ntau yam "tswj piv + 1", uas yog, tus nqi ntxiv = (1 + tswj piv) × tus nqi siab.
3.Thaum tus txheej txheem teeb tsa, tus nqi kaw qhov siab yog ntau dua 85% ntawm tus nqi siab; yog tias nws qis dua qhov kev teeb tsa tus qauv, qhov feem pua ntawm cov nqi kaw siab raug txo raws li.
4.Lub Hoobkas teeb tsa yog hais txog lub siab thaum lub valve qhib (ntev tus nqi yog 30cc / min).
