Isebenza ku-excavator PC60-7 valve yokusiza i-hydraulic control valve 709-20-52300

I-valve yokusiza eyinhloko ifakwe emaphethelweni aphezulu naphansi e-valve yokulawula eyinhloko, eyodwa engaphezulu neyodwa ephansi.I-valve ibeka ingcindezi enkulu ukuze lonke uhlelo lwe-hydraulic lusebenze.Lapho ingcindezi yesistimu idlula ukucindezela kwesethi ye-valve eyinhloko yokusiza, i-valve enkulu yokukhulula ivula umjikelezo kawoyela wethangi lokubuya ukuze ugcwale uwoyela we-hydraulic ubuyele ethangini ukuze uvikele lonke uhlelo lwe-hydraulic futhi ugweme ukucindezela kukawoyela okweqile.

Isebenza kanjani:

① Ukucindezela kwephampu PP kuyenyuka;

② Ngaphezu kuka-355kg/cm2 (380kg/cm2 lapho uwoyela wendiza ucindezela ON);

③ Ukucindezela kwephampu ukusunduza ikhanda eliphakamisayo (2) ukuze unqobe intwasahlobo (1) amandla ukusunduza phezulu;

④ Imbobo encane (kuphela φ0.5) ku-plunger (3) iqala ukugeleza kwamafutha;

⑤ I-plunger (3) iphushelwa phezulu ngenxa yomehluko wengcindezi phakathi kwangaphambili nangemuva (enkulu ngezansi, encane ngaphezulu);

⑥ Uwoyela wokucindezela ubuyele ethangini;

⑦ Umfutho wephampu wehla ufike ku-355kg/cm2 (380kg/cm2 uma umfutho kawoyela wokushayela UVULIWE)

Lapho umfutho wepompo ungaphansi kuka-355kg/cm2:

① Ikhanda eliphakamisayo (2) livalwa ngaphansi kwengcindezi yasentwasahlobo (1);

Akukho mafutha agelezayo embotsheni encane ye-plunger (3);

③ Umehluko wengcindezi phakathi kweziphetho ezimbili ze-plunger (3) ngu-0, futhi ibuya ngaphansi kwesenzo samandla entwasahlobo nokucindezela kukawoyela;

④ Amafutha okucindezela anqanyuliwe endleleni yethangi;

⑤ Pump ingcindezi ingagcinwa;