Mokhoa oa ho khetha valve e loketseng ea ho leka-lekanya e tsamaisoang ke mofofisi
2024-03-26Sistimi ea hydraulic, valve ea ho leka-lekana e khona ho hlokomela taolo ea ts'ireletso ea moqomo oa oli, 'me e ka bapala karolo ea ts'ireletso ea ho lutla ha phala ea oli e ka phatloha.
Mosebetsi oa valve ea ho leka-lekana ha o amehe ke khatello ea morao. Ha khatello ea koung ea valve e eketseha, e ka boela ea boloka sebaka se tsitsitseng sa mokokotlo oa valve.
Hangata e ka boela ea bapala karolo ea ts'ireletso ea phallo ho potoloho. Hangata e sebelisoa ho laola litsamaiso tse lekanang.
Ho molemo ho kenya valve ea ho leka-lekana haufi le cylinder ho eketsa phello ea eona.
Valve e le 'ngoe ea ho leka-lekanya e ka laola meroalo e tsamaeang ka mola, joalo ka sethala se phahamisang bophahamo bo phahameng, li-cranes, jj.
The double balancer e laola meroalo e khutlang le e potolohang joalo ka li-motor kapa li-cylinders tse bohareng.
1. Karo-karolelano e ka sehloohong ke e latelang:
①3: 1 (e tloaelehileng) E loketse maemo a nang le liphetoho tse kholo tsa mojaro le botsitso ba meroalo ea mochini oa boenjiniere.
②8: 1 e loketse maemo ao ho hlokahalang hore mojaro o lule o le teng.
2. Molao-motheo oa ho sebetsa
Karolo ea valve ea tsela e le 'ngoe e lumella oli ea khatello hore e phalle ka bolokolohi ka har'a silinda ha e ntse e thibela ho phalla ha oli ka morao. Karolo ea mofofisi e ka laola motsamao ka mor'a ho theha khatello ea mofofisi. Karolo ea sefofane e atisa ho behoa ka mokhoa o tloaelehileng o bulehileng, 'me khatello e behiloe ho makhetlo a 1.3 ho feta boleng ba moroalo, empa ho buloa ha valve ho khethoa ke tekanyo ea sefofane.
Bakeng sa taolo e ntlafalitsoeng ea mojaro le lisebelisoa tse fapaneng tsa matla, ho lokela ho khethoa likarohano tse fapaneng tsa lifofane.
Netefatso ea boleng ba khatello ea ho bula ea valve le boleng ba khatello ea motsamao oa li-cylinder li fumanoa ho latela mokhoa o latelang: pilot ratio = [(khatello ea khatello ea liphallelo) - (khatello ea mojaro)] / khatello ea sefofane.
Tekanyetso ea hydraulic control ratio ea valve balance e boetse e bitsoa pilot pressure ratio, eo ka kakaretso e bitsoang pilot ratio ka Senyesemane. E bua ka karo-karolelano ea boleng ba khatello e ka morao ea valve ea ho leka-lekana ha oli ea sefofane e le 0 ka mor'a hore metsi a lekaneng a behiloe ho boleng bo itseng bo tsitsitseng le boleng ba khatello ea mofofisi ha valve e nang le oli ea sefofane e bula ka lehlakoreng le ka morao. .
Maemo a fapaneng a ts'ebetso le libaka tse fapaneng li hloka khetho e fapaneng ea tekanyo ea khatello. Ha mojaro o le bonolo 'me tšitiso ea ka ntle e le nyenyane, ka kakaretso ho khethoa karolelano e kholo ea hydraulic control, e ka fokotsang boleng ba khatello ea sefofane le ho boloka matla.
Maemong ao tšitiso ea mojaro e leng kholo 'me ho sisinyeha ho le bonolo, tekanyo e nyenyane ea khatello e atisa ho khethoa ho netefatsa hore ho fetoha ha khatello ea lifofane ho ke ke ha baka ho sisinyeha khafetsa ha motheo oa valve ea balance.
3. Kakaretso
Karo-karolelano ea lifofane ke parameter ea bohlokoa ts'ebetsong ea tsamaiso ea hydraulic. E ka ama matla a ho koala le matla a ho notlolla, ts'ebetso ea ho koala le bophelo ba tšebeletso ea valve ea ho leka-lekana. Ka hona, nakong ea khetho le tšebeliso ea valve ea ho leka-lekanya, hoa hlokahala ho nahana ka botlalo ka phello eatekanyo ea sefofanemabapi le ts'ebetso ea eona 'me u khethe tekanyo e nepahetseng ea sefofane sa valve ea ho leka-lekanya ho netefatsa ts'ebetso e ka tšeptjoang ea valve ea ho leka-lekanya.
