Mamiriro ekushanda einjiniya michina yakaoma. Kuti udzivise kumira kana kumhanyisa muiyo hydraulic transmission system,balance mavharuvhukazhinji inoshandiswa kugadzirisa dambudziko iri. Nekudaro, frequency yekupa vibration ichaitika panguva yekushanda kwemutoro, uye haigone kugadzirisa dambudziko rekudzoreredza kana kutenderera kufamba. kumisa uye overspeeding nyaya. Nokudaro, chinyorwa ichi chinozivisa nzira mbiri yevhavhavhavha yekuvandudza zvikanganiso zvevhavha yekuenzanisa.
Iyo nzira mbiri yekuyera vharafu inoumbwa nepeya yeakafanana mavharuvhu ekuyeresa akabatana akafanana. Iyo graphic chiratidzo inoratidzwa muMufananidzo 1. Chiteshi chemafuta chekutonga chakabatana neoiri inlet yebazi kune rumwe rutivi. Iyo yenzira mbiri yekuyera vharafu inoumbwa nehombe yevharuvhu, sleeve yenzira imwe yevharuvhu, main mesh core chitubu uye chitubu chevharuvhu yenzira imwe. Iyo throttling control port inoumbwa neiyo huru yevharuvhu yepakati yevhavhavhavha uye iyo-imwe nzira valve sleeve.
Mufananidzo 1:Chiratidzo chemifananidzo chevharuvhu yenzira mbiri
Iyo nzira mbiri yekuyera vharafu inonyanya kuve nemabasa maviri: hydraulic lock function uye dynamic balancing basa. Nheyo yekushanda yemabasa maviri aya inonyanya kuongororwa.
Dynamic balance function: Tichifunga kuti mafuta ekumanikidzika anoyerera kubva kuCI achienda kune actuator, mafuta ekumanikidza anokunda simba rechitubu revhavha yenzira imwe mubazi iri, zvichiita kuti throttle valve control port izaruke, uye mafuta ekumanikidza anoyerera achienda kune actuator. .
Oiri yekudzoka inoshanda pamusimboti wevhavha yebazi iri kubva kuC2, uye pamwe chete nemafuta ekumanikidza muchiteshi chekudzora, inotyaira kufamba kweiyo main valve core. Nekuda kweiyo elastic simba yeiyo main valve core, iyo oiri inodzosa kamuri yeiyo actuator ine kumashure kumanikidzwa, nekudaro kuve nechokwadi kufamba kwakatsetseka kweiyo actuator. Apo mafuta anodzvinyirira anoyerera kubva kuC2 kusvika kune actuator, cheki valve paC2 uye guru guru revhavha paC1 kufamba (pakutanga, nheyo yekushanda yakafanana nepamusoro).
Hydraulic lock function: Kana VI neV2 vari pa zero pressure, mafuta emafuta pachiteshi chekutonga chevhavhavha yenzira mbiri iduku zvikuru, inenge OMPa. Iko kudzvanywa kwemafuta mu actuator uye actuator haigone kukunda simba rechitubu reiyo main valve core, saka iyo yevhavha yepakati haigone kufamba, uye iyo-imwe nzira valve haina kudzika conduction, uye throttle valve control port iri munzvimbo yakavharwa. Izvo zviviri zvinodzora zve actuator zvakavharwa uye zvinogona kugara mune chero chinzvimbo.
Kuburikidza nekuongorora kuri pamusoro, iyo nzira mbiri yebhavhavhavha haingoiti kuti hydraulic actuator ifambe zvakanaka, asi inewo kushanda kwe hydraulic lock, saka inoshandiswa zvakanyanya. Ichi chinyorwa chinonyanya kuunza chaiyo einjiniya mienzaniso yemutoro unorema uye kudzoreredza kufamba.
Kushandiswa kweiyo hydraulic musimboti mugirder makumbo emushini wekumisa bhiriji rekukurumidza kunoratidzwa mu.Mufananidzo 3. Makumbo makuru egirder emuchina wekumisa zambuko anomhanya-mhanya ari pakuzorora. Iyo inotsigira kwete chete huwandu hwemotokari yebhiriji erecting muchina pachayo, asiwo huwandu hwematanda ekongiri. Mutoro mukuru uye nguva yekutsigira yakareba. Panguva ino, iyo hydraulic yekuvhara basa revhavha yenzira mbiri inoshandiswa. Kana muchina wekumisa zambuko uchikwira nekudzika, nekuda kwehuwandu hwemotokari, inoda kufamba zvakanaka. Panguva ino, chiyero chesimba chevhavhavha yenzira mbiri inoshandiswa. Iko kunewo imwe-nzira throttle valve muhurongwa, iyo inowedzera kumashure kumashure kweiyo actuator, inowedzera kuvandudza Movement kugadzikana.
Mufananidzo 2Makumbo makuru edanda reiyo yakakwira-kumhanya njanji bhiriji yekumisa muchina Mufananidzo 3 Iyo boom yeaerial work platform
Mukushandiswa kwemaboom pamapuratifomu ebasa remuchadenga, iyo hydraulic schematic diagram inoratidzwa muMufananidzo 3 [3]. Kana iyo luffing angle ye boom ichiwedzera kana kuderera, kufamba kunodiwa kuve kwakatsetseka, uye nzira mbiri-yevhavhavhavha inodzivirira kumira kana kumhanyisa panguva yekudzokedzana kwayo. Imwe njodzi inomuka.
Chinyorwa ichi chinonyanya kutarisisa mashandiro emisimboti yekushanda uye inoshanda yeinjiniya mashandisirwo evhavhavhavha yenzira mbiri kubva pahydraulic lock function uye dynamic balance function, uye ine nzwisiso yakadzama yenzira mbiri dzechiyero vharafu. Iyo ine imwe ratidziro yekuvandudzwa kwayo uye mashandisirwo.