Excavator hydraulic pump solenoid valve proportional solenoid valve TM68301

Proportional vharafu, vharuvhu kuyerera kuyerera kunogona kukamurwa kuva mhando mbiri. Imwe ndeye kushandura kutonga, imwe inoramba ichidzora, servo valve uye mamwe mavharuvhu akasiyana, kurasikirwa kwayo kwesimba kwakakura, nekuti inoda kumwe kuyerera kuchengetedza basa reiyo pre-stage control oil circuit. Imwe ndeye switch control: ingave yakavhurika zvizere kana kuvharwa zvakazara, chiyero chekuyerera chingave chepamusoro kana kushoma, hapana nzvimbo yepakati, seyakajairwa magetsi kuburikidza nevharuvhu, electromagnetic reversing valve, electro-hydraulic reversing valve. Imwe yacho inoramba ichidzora: chiteshi chevhavha chinogona kuvhurwa zvichienderana nekudiwa kwechero dhigirii rekuvhura, nekudaro kudzora saizi yekuyerera kuburikidza, mavharuvhu akadaro ane manyorero ekutonga, senge throttle mavharuvhu, asi zvakare anodzorwa nemagetsi, senge proportional. mavharuvhu, servo mavharuvhu.

Automatic control inogona kukamurwa kuita intermittent control uye inoenderera kudzora. Intermittent control is switch control. Mune pneumatic control system, ON-OFF reversing valve ine yakaderera kushanda frequency inoshandiswa kudzora on-off nzira gasi. Vimba nevhavha yekuderedza kudzvinyirira kugadzirisa kudiwa kunodiwa, vimba nevhavha yevhavha kuti ugadzirise kuyerera kunodiwa. Iyi yechinyakare pneumatic control system inoda kuve neakawanda kuburitsa masimba uye akawanda mafambiro kumhanya, inoda kuwanda kudzvinyirira kudzikisa mavharuvhu, throttle mavharuvhu uye reversing mavharuvhu. Nenzira iyi, kwete chete zvikamu zvinoda zvimwe, mutengo wakakwira, kuumbwa kwehurongwa kwakaoma, uye zvikamu zvakawanda zvinoda kugadziridzwa nemaoko pachine nguva. Magetsi proportional valve control ndeyekuenderera mberi kwekutonga, iyo inoratidzirwa nekubuda kwehuwandu hunochinja nehuwandu hwekupinda, uye pane humwe hukama hwakaenzana pakati pehuwandu hwekubuda uye huwandu hwekupinda. Proportional control ine yakavhurika loop Musiyano pakati pekutonga uye yakavharwa-loop control.