Excavator muchina zvikamu 185-4254 solenoid vharafu

Nheyo yekushanda ye electro-hydraulic proportional valve

Electro-hydraulic proportional valve inonzi proportional valve. Akajairika hydraulic mavharuvhu anogona chete kudzora kudzvanywa uye kuyerera kwemvura kuyerera ne-pre-setting. Nekudaro, kana iyo dhizaini dhizaini inoda kugadziridzwa kana kuenderera kutonga kwekumanikidza uye kuyerera kweiyo hydraulic system panguva yekushanda, semuenzaniso. Tafura yebasa inodiwa kuti uwane chikafu nekumhanya kwekunonoka, nekukurumidza uye kunonoka kunoenderera shanduko panguva yebasa rekudya, kana kutevedzera yakaringana yekudzora curve neimwe chaiyo kuti uwane simba rekutonga. Ordinary hydraulic valves haigone kubudirira. Panguva ino, iyo hydraulic system inogona kudzorwa neiyo electro-hydraulic proportional valve.
Electro-hydraulic proportional valve imhando yevharuvhu inoenderera uye yakaenzana inodzora mafambiro, kuyerera uye kumanikidza kweiyo hydraulic system zvinoenderana neinopinza magetsi chiratidzo. Iyo ine zvikamu zviviri: yemagetsi-mechanicha yakaenzana yekushandura mudziyo uye iyo hydraulic control valve body. Iyo yekutanga inoshandura chiratidzo chemagetsi chekuisa kuita mechanicha simba uye inoburitsa inobuda nguva nenguva uye zvakaenzanirana, nepo iyo yekupedzisira inoburitsa kudzvanywa uye kuyerera ichienderera uye zvakaenzanirana mushure mekugamuchira yakadaro mechanic simba uye kutamiswa.
Kugadzirwa kweelectro-hydraulic proportional valve kunonyanya kuve nenzira mbiri: imwe ndeyekutsiva chigadziriso chemaoko chechinyakare hydraulic vharafu neproportional electromagnet kana kutsiva yakajairika electromagnet. Yechipiri inogadzirwa ne electro-hydraulic servo valve kurerutsa chimiro uye kuderedza kurongeka. Mavharuvhu akaenzana anotsanangurwa pazasi ese anoreva yekutanga, inova ndiyo huru yemazuva ano mavharuvhu akaenzana. Inochinjika neyakajairwa hydraulic mavharuvhu.