Relief valve Excavator solenoid valve control valve Main valve 723-46-48100

Relief valve i hydraulic pressure control valve, iyo inonyanya kuita basa rekugara kudzvinyirira, kudzvinyirira mutemo, kuburitsa system uye kuchengetedza kuchengetedza mu hydraulic equipment. Muhuwandu hwepombi throttling regulation system, iyo pombi yehuwandu inopa kuyerera nguva dzose, kana iyo system inomanikidza inowedzera, kuyerera kwekuda kunoderedzwa, panguva ino vharafu yekuyamura inovhurwa, kuitira kuti yakawandisa idzokere kutangi, kuve nechokwadi kuti. iyo yekuyamura valve inlet pressure, kureva kuti, pombi yekubuda kwepombi inogara iripo. Ivhavha yekuyamura yakabatanidzwa mumutsara pakudzoka kwemafuta ekudzoka, uye kugadzikana kwezvikamu zvinofamba zvemashure ekumanikidzwa kwevhavha yekuyamura kunowedzera. Basa rekuburitsa rehurongwa nderekubatanidza solenoid valve ine diki yekuyerera inoyerera munhevedzano pachiteshi chekudzora chevhavha yekuyamura. Kana magineti emagetsi apihwa simba, chiteshi chekudzora chirikure chevharuvhu yekuyamura chinopfuura nepakati petangi remafuta. Panguva ino, pombi ye hydraulic inosunungurwa uye valve yekuyamura inoshandiswa sevhavha yekudzikisa. Basa rekuchengetedzwa kwekuchengetedza, kana chirongwa chiri kushanda zvakanaka, valve yakavharwa, chete kana mutoro unopfuura muganhu wakatarwa, kuwandisa kunozarurwa, uye kuchengetedzwa kwepamusoro kunoitwa, kuitira kuti kudzvinyirira kwehurongwa kurege kuwedzera.

Iko kushandiswa kukuru kwevhavha yekuyamura ndeaya mapoinzi maviri anotevera:

(1) Kudzvinyirira mutemo uye mutemo. Kana yakashandiswa mune hydraulic sosi inoumbwa nehuwandu hwepombi, inoshandiswa kugadzirisa kubuda kwekumanikidza kwepombi kuchengetedza kudzvanywa nguva dzose.

(2) Kuderedza dzvinyiriro. Kana yakashandiswa sevhavha yekudzivirira, kana chirongwa chacho chiri kushanda zvakajairika, chivharo chekuyamura chiri munzvimbo yakavharwa, uye inongotanga kuputika kana iyo system pressure yakakura kudarika yayo yakatarwa, iyo inotamba basa rekudzivirira rinorema pane hurongwa.

Mamiriro evhavha yekuyamura ndeaya: vharafu uye mutoro unoda kunge wakafanana, chiteshi chekuyamura chakabatanidzwa kumashure kune tangi yemafuta, uye inlet yekumanikidza imhinduro yakaipa.

Heino kukurumidza kutarisa kune yakananga-inoita yekuyamura vharafu:

Direct acting relief valve ivharuvhu yekuyamura umo iyo hydraulic kudzvanywa kweiyo huru mutsara wemafuta inobata pane spool yakanyatso kuenzana nekudzvanywa inodzora chitubu simba. Sezvinoratidzwa muMufananidzo 1, iyo yakananga-inobata vharafu yekuyamura inoumba matatu ekutanga zvimiro nekuda kweakasiyana maumbirwo emhando yevhavha port uye kuyera kuyera nzvimbo:

Shandisa slide valve mhando yekufashukira chiteshi, kupera kwechiso kudzvanywa kuyerwa;

Iyo taper valve mhando yekufashukira chiteshi inogamuchirwa, uye iyo yekupedzisira kumeso yekumanikidza kuyerwa nzira inogamuchirwa zvakare.

Iyo yekuyeresa yekuyera nzvimbo uye throttle mupendero wevhavha port zvese zvinoshandiswa semakoni.

Nekudaro, zvisinei kuti rudzii rwechimiro, iyo yakananga-inoita yekuyamura vharafu inoumbwa nezvikamu zvitatu, senge kudzvanywa inodzora chitubu uye kudzvanywa inodzora mubato, chiteshi chevhavha yekuyamura uye kumanikidza kuyera nzvimbo.