Excavator solenoid vharafu 457-9878 hydraulic pombi proportional solenoid vharafu

1, proportional valve chimiro.

Proportional valve rudzi rutsva rwe hydraulic control device. Kudzvinyirirwa, kuyerera, kana kutungamira kwerukova rweoiri kunogona kudzorwa kure zvichienderana nekuisa chiratidzo chemagetsi nguva nenguva uye zvakaenzanirana. Iyo yakaenzana vharafu inoumbwa nezvikamu zviviri: iyo electro-mechanical proportional conversion device uye hydraulic control valve body.

Kune akawanda marudzi eakaenzana magineti emagetsi, asi musimboti wekushanda wakangofanana, uye iwo ese akagadzirwa zvinoenderana nezvinodiwa zvekutonga zveyakaenzana vharafu. Basa rayo nderekuenderera uye zvakaenzanirana kushandura chiratidzo chemagetsi chekuisa musimba remakanika uye kuburitsa kubuda, uye iyo yekupedzisira inoburitsa kudzvanywa uye kuyerera zvakaenzanirana uye nekuenderera mushure mekugamuchira simba remakanika uye kutamiswa.

2. Kushanda nheyo yeproportional valve.

Chiratidzo chekuraira chinokwidziridzwa neiyo proportional amplifier, uye yakaenzana inobuda ikozvino kune yakaenzana solenoid yeyakaenzana vharafu, iyo proportional solenoid yekubuda simba uye kuenzana kwekufamba kwevhavha yepakati chinzvimbo, unogona kuenzanirana kudzora kuyerera kwekuyerera kwemvura uye. shandura mafambiro ekuyerera kwemvura, kuitira kuti uwane chinzvimbo kana kukurumidza kutonga kweiyo actuator. Mune mamwe maapplication anoda chinzvimbo chepamusoro kana kumhanya chaiko, iyo yakavharwa-loop control system inogona zvakare kuumbwa nekuona kutamiswa kana kumhanya kweiyo actuator.

Nheyo ye proportional solenoid valve

Inobva pamusimboti we solenoid switch valve: kana simba rakagurwa, chitubu chinodzvanya simbi yesimbi yakanangana nechigaro, kuvhara vharafu. Kana iyo coil ichinge yasimbiswa, simba remagetsi rinobuda rinokunda simba rechirimo uye rinosimudza core, nekudaro richivhura vharuvhu. Iyo proportional solenoid valve inoita shanduko kune chimiro che solenoid on-off valve: simba rechirimo uye simba remagetsi rinoenderana pasi pechero coil ikozvino. Saizi yekoiri yazvino kana saizi yesimba remagetsi inokanganisa kurova kweplunger uye kuvhurwa kwevharuvhu, uye kuvhurwa kwevharuvhu (kuyerera mwero) uye coil ikozvino (chiratidzo chekudzora) zvine hukama hwakakodzera mutsara. . Direct acting proportional solenoid mavharuvhu anoyerera pasi pechigaro. Iyo yepakati inoyerera pasi pechigaro chevharuvhu, uye kutungamira kwayo kwesimba kwakafanana nemagetsi emagetsi, asi zvakapesana nechisimba chechirimo. Nokudaro, zvakakosha kuisa huwandu hwehuwandu hwehuwandu hunoenderana nehuwandu hwekushanda (coil current) mumamiriro ekushanda. Kana simba radzimwa, Drake liquid proportional solenoid valve inovharwa (kazhinji yakavharwa).

Proportional solenoid valve basa

Kudzora kudzora kweyero yekuyerera kunowanikwa nemagetsi kutonga (zvechokwadi, kudzora kudzvinyirira kunogonawo kuwanikwa nekuchinja kwemaitiro, nezvimwewo). Sezvo iri throttle control, panofanira kunge paine kurasikirwa kwesimba.