Nzira yekusarudza yakakodzera pilot-operated balancing valve
2024-03-26Muiyo hydraulic system, vharafu inogona kuona chiyero chekudzivirira chesilinda yeoiri, uye inogona kuita basa mukudzivirira kuvuza kana pombi yemafuta yaputika.
Basa revhavha yekuenzanisa harina kukanganiswa nemusana wekumanikidzwa. Kana iyo valve port pressure ichiwedzera, inogona zvakare kuchengetedza yakagadzikana kuvhurwa kweiyo valve core.
Kazhinji inogona zvakare kutamba basa rekudzivirira mafashama mudunhu. Kazhinji anoshandiswa kudzora proportional masisitimu.
Zvakanakisisa kuisa valve yekuenzanisa pedyo ne cylinder kuti iwedzere kushanda kwayo.
Iyo imwechete yekuyera vharafu inogona kudzora mitsetse inofamba mitoro, senge yakakwira-yakakwirira kusimudza mapuratifomu, cranes, nezvimwe.
Iyo yakapetwa kaviri inodzora mitoro inodzokororwa uye inotenderera senge mavhiri mota kana centering silinda.
1. Reshiyo inotungamira ndeyotevera:
①3: 1 (yakajairwa) Inokodzera mamiriro ane hombe shanduko shanduko uye kugadzikana kweinjiniya michina mitoro.
②8: 1 yakakodzera mamiriro ezvinhu apo mutoro unodiwa kuti urambe uripo.
2. Kushanda musimboti
Iyo imwe-nzira yevhavha chikamu inobvumira kumanikidza mafuta kuyerera zvakasununguka mucylinder uku ichidzivirira kudzoreredza kuyerera kwemafuta. Chikamu chemutyairi chinogona kudzora mafambiro mushure mekutanga kumanikidza mutyairi. Chikamu chemutyairi chinowanzoiswa kune chimiro chinowanzovhurika, uye kumanikidzwa kunoiswa ku 1.3 nguva yekukosha kwemutoro, asi kuvhurwa kwevhavha kunotarirwa nechiyero chemutyairi.
Kune yakagadziridzwa mutoro wekutonga uye akasiyana mashandisirwo emagetsi, akasiyana eyesheni yevatyairi inofanirwa kusarudzwa.
Iko kusimbiswa kwekuvhura kwekumanikidza kwevhavha uye kukosha kwekumanikidzwa kwekufamba kwecylinder kunowanikwa maererano nemaitiro anotevera: pilot ratio = [(relief pressure setting) -(load pressure)]/pilot pressure.
Iyo hydraulic control reshiyo yevhavhavhavha yechiyero inonziwo pilot pressure ratio, inowanzonzi pilot ratio muChirungu. Inoreva chiyero cheiyo reverse kuvhura kumanikidza kukosha kwevhavhavha yekuyeresa kana mafuta ekufambisa ari 0 mushure mekunge chitubu chevhavhavha yaiswa kune imwe yakatemerwa kukosha uye kukosha kwemutyairi wemutyairi apo vharafu yechiyero ine mafuta ekutyaira inovhura munzira yekudzokera kumashure. .
Mamiriro ekushanda akasiyana uye nharaunda zvinoda sarudzo dzakasiyana dzekumanikidza reshiyo. Kana mutoro uri nyore uye kupindira kwekunze kuri kudiki, yakakura hydraulic control ratio inowanzosarudzwa, iyo inogona kudzikisa kukosha kwemutyairi uye kuchengetedza simba.
Mumamiriro ezvinhu apo kupindira kwemutoro kwakakura uye kuzununguka kuri nyore, chiyero chiduku chekumanikidzika chinowanzosarudzwa kuti ive nechokwadi chokuti kuchinja kwekufambisa kwemutyairi hakuzokonzeri kudengenyeka kwevhavhavha yepakati.
3. Pfupiso
The pilot ratio ndiyo yakakosha parameter mukushanda kwe hydraulic system. Inogona kukanganisa simba rekuvhara uye kusunungura simba, kuvhara kushanda uye hupenyu hwebasa revhavhavhavha. Naizvozvo, panguva yekusarudza uye kushandiswa kwevhavha yekuyeresa, zvinodikanwa kunyatso funga nezve maitiro eiyopilot ratiopamusoro pekushanda kwayo uye sarudza chiyero chakakodzera chemutyairi wevhavha yekuenzanisa kuti uve nechokwadi chekushanda kwakavimbika kwevhavha yekuenzanisa.
