195-40-00901STEERING VALVE ASSY(B)

Tshatisa iiparamitha ezingundoqo zeebulldozers
Ithoni kunye nokulungelelanisa amandla
I-tonnage ye-bulldozer inquma ngokuthe ngqo ukulinganiswa koxinzelelo kunye nemfuno yokuhamba kwevalve yokulawula. Umzekelo:
Amancinci amancinci kunye - ama-bulldozers amancinci (Ngaphantsi okanye alingana neetoni ezingama-20): Ngokuqhelekileyo khetha i-valve yokulawula kunye noluhlu loxinzelelo lwe-10-20MPa kunye nesantya sokuhamba kwe-40-100L / min, njenge-ZT series hydraulic directional valve (izinga lokuhamba kwe-40-100L / i-5MPa ilingana ne-Les2 / min, uxinzelelo lwe-Les2).
Large bulldozers (>Iitoni ezingama-20): kufuneka zihambelane neenkcukacha eziphezulu, ezifana nevalve yokulawula i-brake esetyenziswa kwi-bulldozer ye-520 horsepower, kunye nesantya sokuhamba kwe-246L / min kunye noxinzelelo lwe-2.69MPa, ehlanganiswe ne-self{4}}ivalve yokutshixa ukumelana nemithwalo enzima kunye nomhlaba onzima.
Ukumatanisa amandla: Jonga kumandla e-injini ye-flywheel (afana ne-447kW yeCaterpillar D10T2) ukuqinisekisa ukuba ivalve yokuqhuba inokumelana noxinzelelo oluphezulu lwenkqubo yonke yehydraulic.
Ukuhambelana kwesakhiwo somzekelo
Kukho umahluko omkhulu kuyilo lweenkqubo zokuqhuba phakathi kweemodeli ezahlukeneyo. Umzekelo:
I-bulldozer ye-Crawler: Kuyimfuneko ukukhetha i-valve yokulawula exhasa ukulawulwa kwesantya sokulandela umkhondo, njenge-valve yokulawula i-16Y-76-22000 eyenzelwe ngokukodwa i-SD16 bulldozers, enokuthi idibaniswe ne-clutch ye-brake ukufezekisa ukuqondisa okuchanekileyo.
I-bulldozer enamavili: Cinga ngokudibanisa ivalve yokukhulisa amanzi (efana nohlobo lwe-VSFA) kunye nesixhobo sokuqhuba ukuqinisa ukulawuleka ngomgaqo wokwandiswa ngokulinganayo.

Ukulungelelanisa indawo yokusebenza kunye neemeko zokusebenza
Iimeko zomhlaba kunye nomthwalo
Imihlaba enzima (imigodi, iintaba): Okuphambili kufuneka kunikwe iivalve zokuqhuba kunye nomsebenzi wembuyekezo yoxinzelelo, njengezivalo ezidityanisiweyo ezineevalo ezidibeneyo zokhuseleko, ezinokuthi zikhuphe ngokuzenzekelayo uxinzelelo xa umzila unamathele (umda woxinzelelo udla ngokuba yi-10-30MPa) ukukhusela umonakalo kumacandelo e-hydraulic.
Ibulldozer yomthwalo onzima: Kuyafuneka ukuba ukhethe imathiriyeli yevalvu yomzimba ekwazi ukumelana nempembelelo enamandla (efana nokuphakama-intsimbi ephoswe ngamandla okanye intsimbi), kwaye uqinisekise ukuxhathisa kokunxitywa kombindi wevalvu. Umzekelo, ii-valve cores ezigqunywe nge-tungsten carbide ziyakwazi ukumelana nokunxitywa kwemisebenzi yomthwalo onzima rhoqo.
Ukhuseleko lokusingqongileyo olugqithisileyo
Ubume bobushushu obuphezulu / obuphantsi: Khetha izinto ezixhathisa ubushushu (ezifana neebhloko ze-silicon carbide zeceramic valve ezinokumelana namaqondo obushushu ukuya kuthi ga kwi-1600℃) okanye iivalvu eziya kulwalathiso ezinembuyekezo yokulawula ubushushu ukuze ugweme ukugcwala kwevalve okubangelwa kukwandiswa kwe-thermal kunye nokucutheka.
Uthuli oluphezulu/imekobume edlekayo: Ukwamkela i-duplex stainless steel (efana ne-2205) okanye umzimba wevalve ye-Hastelloy, ene-O{1}}yokutywinwa komsesane (okufana ne-fluororubber VITON) ukunqanda ukungena kothuli kunye ne-corrosion ephakathi.

Inkqubo yeHydraulic parameter ehambelanayo
Ukuhamba kunye noxinzelelo oluhambelanayo
Ukubala okuhambayo: Ngokusekelwe kwisantya sokusebenza se-cylinder yokulawula (efana nesantya se-piston rod ye-50mm / s) kunye ne-cylinder diameter (efana ne-φ 125mm), bala umlinganiselo ofunekayo wokuhamba (Q=π× r ² × v) ukuqinisekisa ukuba ubuninzi bezinga lokuhamba kwevalve yokuqhuba (njenge-0L / min) idibana ne-valve yokuqhuba (njenge-0L / min)
Ukulinganiswa koxinzelelo: Uxinzelelo olulinganisiweyo lwe-valve yokulawula kufuneka lube phezulu kunoxinzelelo oluphezulu lwenkqubo (ngokuqhelekileyo i-1.2-1.5 amaxesha oxinzelelo lokusebenza). Ngokomzekelo, xa uxinzelelo olusebenzayo luyi-15MPa, i-valve enoxinzelelo olulinganisiweyo lwe-20MPa kufuneka ikhethwe.
Ukuhambelana kweoli
Qinisekisa uhlobo lwe-oyile ye-hydraulic (njenge-oyile yamaminerali, i-oyile yokwenziwa) kunye noluhlu lwe-viscosity (njenge-ISO VG 46) efanelekileyo kwivalve yokulawula ukunqanda ukuguga kwetywina okanye i-valve core jamming ebangelwa ukungahambelani kweoli.

Iimfuno zokusebenza kunye nokusebenza
Lawula ukuchaneka kunye nesantya sokuphendula
Uvakalelo lwe-valve core: Khetha ivalve yokulawula ngokulinganayo okanye umsebenzi wokulawula i-elektroniki (njenge-BPBS i-hydraulic steering gear+VSFA flow amplification valve) ukufezekisa "uhlengahlengiso oluncinci lwe-angle entle" kunye nokuphendula ngokukhawuleza, ukuphucula ukusebenza kakuhle.
Ukubuyisela ukuthembeka: Kuyimfuneko ukujonga ukuqina kwentwasahlobo yokubuyisela kunye nomgangatho wamacandelo okutywinwa ukuqinisekisa ukuba i-valve core ibuyela ngokukhawuleza kwiziko emva kokukhulula intonga yokulawula, ukuphepha ukuphambuka.
Ukhuseleko kunye noyilo lokungafuneki
Ukuzitshixa kunye nokuchasana nokungaphathwa kakubi: Umzekelo, ivalve yokuqhuba ibhuludoza ye-520 horsepower bulldozer idibanisa{1}}ivalve yokuzitshixa. Xa uqala, isibambo kufuneka sibuyiselwe kwindawo yaso yangaphambili ukuze kuthintelwe iingozi ezibangelwa kukungasebenzi kakuhle.
Inkqubo ye-Redundant: Kwiimeko ezithembekileyo eziphezulu ezifana nemigodi, iivalve zokulawula ezingafunekiyo ezineevalo ze-solenoid ezigciniweyo zinokukhethwa. Xa ivalve engundoqo ingaphumeleli, itshintshela ngokuzenzekelayo kwisekethe yokugcina, ukunciphisa ixesha lokuphumla.