709-62-12101VALVE SSSY(B)

Tataiso ea phallo ea oli maemong a fapaneng (ho nka mohlala oa ho phahamisa bulldozer)
Boemo bo bohareng (bohare ba li-valve):
Lehetla le hlahelletseng la "valve core" le tiisa li-ports tsohle tsa P (oil inlet), likou (tse hokahaneng le silindara ea hydraulic ea bulldozer ntle le kamore ea molamu), le likou tsa B (tse hokahaneng le kamore ea molamu), e nang le boema-kepe ba T feela (ho khutla ha oli) ho buloa ka thoko. Ka nako ena, tlhahiso ea oli ka pompo ea hydraulic ha e khone ho kena ka har'a hydraulic cylinder 'me e khutlisetsoa ka ho toba tanka ea oli ka valve ea liphallelo, ha bulldozer e ntse e eme (ha e phahame kapa e oa).
Boemo ba ka ho le letšehali (moko oa valve o suthela ka ho le letšehali):
Ka mor'a hore mokokotlo oa valve o tsamaee, P port e hokahane le A port, 'me B port e hokahane le T port.

Oli ea khatello e phahameng e kena ka kamoreng e se nang molamu ea hydraulic cylinder ho tloha koung ea P ho ea ho port A (kamore e se nang rod e na le sebaka se seholo le sekhahla se phahameng), e sutumelletsa piston ho atolosa le ho khanna bulldozer ho phahama;
Oli e ka kamoreng ea molamu ea hydraulic cylinder e khutlela tanka ea oli ho tloha boema-kepe ba B ho ea boema-kepeng ba T, ho phethela potoloho.
Boemo bo nepahetseng (moko oa valve o ea ka ho le letona):
Ka mor'a hore mokokotlo oa valve o tsamaee, P port e hokahane le B port, 'me A port e hokahane le T port.
Oli ea khatello e phahameng e kena ka kamoreng ea molamu oa hydraulic cylinder ho tloha koung ea P ho ea ho B, ho sutumetsa piston ho khutlela morao le ho khanna bulldozer ho theoha;
Oli e ka kamoreng e se nang rod ea hydraulic cylinder e khutlela tanka ea oli ho tloha boema-kepe ba A ho ea boema-kepeng ba T, e phethela ho potoloha.

Lintlha tsa bohlokoa tsa moralo oa valve ea tataiso ka bulldozer
Thibelo ea ho Tiisa le ho Dutla:
Sebaka se pakeng tsa motheo oa valve le 'mele oa valve se lokela ho laoloa ka thata (hangata 0.005-0.01mm) ho etsa bonnete ba ho sisinyeha ha mokokotlo oa valve le ho fokotsa ho lutla ka hare (haeba tumello e le khōlō haholo, oli ea khatello e phahameng e tla lutla ka ho toba ho tloha P port ho ea T port, ho etsa hore actuator e fokotsehe). Karolo e 'ngoe ea karolo ea mantlha ea valve e tla be e behiloe ka chrome ho ntlafatsa ho hanyetsa le ho tiisa.
Ho tsitsa ha maeto:
Lebelo la motsamao oa konokono ea li-valve le hloka ho laoleha (le entsoe ka likoti tsa throttle kapa buffer slots) ho qoba tšusumetso e bakiloeng ke phetoho ea tšohanyetso ea oli (joalo ka "jerking" nakong ea ho phahamisa kharafu ea bulldozer), le ho sireletsa cylinder ea hydraulic le likarolo tsa sebopeho.
Ho ikamahanya le maemo:
Nakong ea ts'ebetso ea bulldozer, ho na le phetoho e kholo ea mojaro (e kang ho kopana le li-blocks tsa mobu o thata), 'me valve ea tataiso e lokela ho amahanngoa le valve ea liphallelo: ha mojaro oa actuator o feta boleng bo behiloeng, valve ea liphallelo e tla lokolla khatello ho qoba tšenyo ea valve ea tataiso ka lebaka la khatello e phahameng.

Maemo a khethehileng a ts'ebeliso ho li-bulldozers
Ketso ea bulldozer: Silinda ea hydraulic ea bulldozer e laoloa ho atolosa le ho khutlela morao ka valve e lebisang, ho finyella "ho phahamisa, ho theola le ho emisa". Ka valve ea tataiso ea silinda e sekamang, bulldozer le eona e ka laoloa hore e sekamele ho le letšehali kapa ho le letona (ho lokisa angle ea bulldozer).
Ketso ea sesebelisoa sa ho hlephisa: Laola katoloso le ho honyela ha hydraulic cylinder ea sesebelisoa se hlephisang mobu ho fihlela "ho kena mobung, ho phahamisa", le ho pshatla mobu o thata kapa mafika.
Phetoho ea tsela ea ho tsamaea: Li-bulldozers tse ling tse tsamaeang ka li-hydraulic motors (lipina tsa ho khanna) li boetse li laola tsela eo oli e eang ka eona ka li-valve tse lebang, li fihlella ho "forward and backward" switching.
Ka kakaretso, valve e tataisang e fetola tataiso ea phallo ea oli ka ho laola hantle boemo ba mantlha ba li-valve, e leng motheo oa li-bulldozers ho fihlela "taelo ea ketso e laolehang". Ts'ebetso ea eona e ama ka kotloloho lebelo la karabo ea ts'ebetso, botsitso ba ts'ebetso, le bophelo ba lisebelisoa.