Excavator zvikamu PC300-5 PC400-5 Kudzora huru vharafu 709-90-52203 vharafu yekuyamura

Varuvhu yekuyamura yekuchera ine musoro unosimudza 11, vharafu huru 12, vharafu huru 13, spool yevatyairi yekutyaira 14, kudzvanywa kunodzora chitubu 15 uye ruoko rwevharuvhu yekutyaira. Iyo huru yevhavha spool 12 yakarongedzwa mukati mehombe yevhavhavhavha 13, iyo huru yevhavha spool 12 inopiwa nemusoro unosimudza 11 uye sleeve yevhavha yekufambisa ndege, uye sleeve yevhavha yepilot inopiwa neine pilot valve spool 14. Sleeve yevatyairi iri nhanho mbiri-yakapatsanurwa chimiro, inoumbwa nemuviri wevharuvhu 16 uye chivharo chevharuvhu 17, muviri wevharuvhu kure nevhavhavhavha yevhavha inopera yakarongwa muhombe yevharuvhu, muviri wevharuvhu padhuze nevhavhavhavha inovhara yakashanduka kuita shefu 18, ane shefu muvharuvhu hombe anopiwa gorofu, maviri ekusunga anogumira anoumba muganhu. Kana iyo dhizaini iri kushandiswa, nekuti vharafu yevharuvhu yakakamurwa kuita zvikamu zviviri muviri wevharuvhu 16 uye chivharo chevhavha 17, iyo huru valve sleeve 13 inopiwa negoro, muviri wevharuvhu unopiwa nemukuru 18, iyo inoshandiswa gadzirisa muviri wevharuvhu 16 radial uye axial, iyo huru yevhavha core uye inosimudza musoro yakarongedzerwa mukati meiyo huru valve sleeve, uye muviri wevharuvhu unotanga kuiswa muhombe yevhavha core cavity panguva yekuiswa. Vimba nema grooves pane guru sleeve yevharuvhu kuti udzikise muviri wevharuvhu axially uye radially, uye wozokorera kepu yevharuvhu muhombe yevharuvhu sleeve uye dzvanya muviri wevharuvhu kugadzirisa muviri wevharuvhu, uye ipapo vharafu yekuyamura inogona kushandiswa zvakajairika.

1. Varuvhu yokuyamura yokuchera ine musoro unosimudza (11), spool yevharuvhu huru (12), sleeve yevharuvhu huru (13), spool yevharuvhu (14), chitubu chinodzora kumanikidza (15) uye sleeve yevharuvhu. . Iyo huru yevhavha spool (12) yakarongedzwa mukati mevhavha huru sleeve (13), uye huru yevhavha spool (12) inopiwa nemusoro unosimudza (11) uye sleeve yevhavha yekufambisa. Sleeve yevharuvhu yekutyaira inopihwa pilot valve core (14), iyo inoratidzwa pakuti ruoko rwevharuvhu yekutyaira ine nhanho mbiri, inoumbwa nemuviri wevharuvhu (16) nevhavhavhavha (17), vharafu. muviri (16) kure nevhavhavhavhavhavha (17) imwe mugumo wakarongedzwa muhombe yevhavha core (12), Muviri wevharuvhu (16) padhuze nevhavhavhavhavhavha (17) - magumo akabatana nemukati nehombe yevharuvhu (13) ) kuburikidza nekugadzirisa chimiro.
2. Maererano nezvakataurwa 1, vharuvhu yekucherwa inoratidzwa pakuti muviri wevharuvhu (16) pedyo nevhavhavhavha (17) unobuda kuita mukuru webasa (18), uye sabhuku anopiwa gonhi mukati. iro guru revharuvhu sleeve (13), uye maviri ekusungirira miganhu anoumba muganhu chimiro.
Iyo utility modhi inoburitsa vharafu yekuyamura yeanochera, kusanganisira inosimudza musoro, main valve core, main valve sleeve, pilot valve core, inodzvinyirira inodzora chitubu uye mutyairi wevhavha sleeve, iyo huru valve core yakarongwa mukati meiyo huru. Sleeve yevharuvhu, iyo huru yevharuvhu yepakati inopiwa nemusoro unosimudza uye ruoko rwevharuvhu yevatyairi, jira revharuvhu rinopihwa nepakati pevharuvhu yevatyairi, iyo inoratidzirwa mukuti jira revharuvhu remutyairi rakapatsanurwa nhanho mbiri. Inoumbwa nemuviri wevharuvhu uye chivharo chevhavha, muviri wevharuvhu kure nevhavhavhavha yevhavha inopera yakarongwa muhombe yevharuvhu, muviri wevharuvhu padhuze nevhavhavhavha inopera kuburikidza neinogumira chimiro uye main valve sleeve yemukati kubatana. Iyo utility modhi inokamura siketi yevharuvhu yevatyairi mukati memuviri wevharuvhu uye chivharo chevhavha, nekudaro ichidzikisa kureba kwemukati wemukati wevhavhavhavha sleeve, kuvandudza kurongeka kwekugadzirisa kwechikamu chekusangana pakati pechivharo chevharuvhu uye pilot valve core, uye nokudaro kuvandudza kugadzikana kwevhavha yekuyamura.