I-Sauer Danfoss Valves yoqobo ye-MCV116 Series

I-MCV116 Pressure Control Pilot (PCP) Valve iyivalvu yokulawula engabizi ukuze isetshenziswe ezinhlelweni ze-electrohydraulic ezilawula imishini esetshenziswa ekwakheni, ekulimeni, ekuphathweni kwempahla, olwandle, ezimayini nasezimbonini zokusebenza. Idivayisi yakhelwe ukulawula amavalvu okulawula ukugeleza asebenza ngomshayeli (amavalvu amakhulu alinganayo e-spool ebangeni elingu-5—50 gpm), amaphampu aguquguqukayo aqanjwe nge-pilotope kanye namamotho kanye nanoma iyiphi enye idivayisi ecushwe ingcindezi yokuhluka komshayeli. I-PCP iyi-torque-motor actuated, i-valve ye-flapper ene-nozzle ephindwe kabili ekhiqiza ingcindezi ehlukile yokuphuma ngokulingana nesignali yokufaka kagesi esetshenziswayo. Yisiteji esisodwa, esizimele, ivalvu yokulawula i-loop evaliwe esebenzisa umfutho we-hydraulic wangaphakathi

XHUMANA MANJE layisha phansi ku-pdf

imininingwane yomkhiqizo

Ithiyori Yokusebenza

7 Jan 2019

I-PCP yamukela i-dc current futhi ikhiqiza umfutho olinganiselayo we-hydraulic differential okukhiphayo. Bheka I-Internal Workings Schematic. Okokufaka kulawula isiteji se-torque motor, inethiwekhi yebhuloho ehlanganisa i-armature efakwe ku-torsion pivot futhi imiswe esikhaleni somoya senkundla kazibuthe. Ozibuthe ababili abangapheli abahlukanisiwe ngokuhambisana kanye nepuleti elixhumayo lakha uhlaka lwebhuloho kazibuthe.

Ngokungasho lutho i-armature igxile esikhaleni somoya phakathi kwezigxobo eziphikisanayo zikazibuthe ngokulingana kwamandla kazibuthe wabo kanye neziphethu ezimaphakathi ezishintshayo ezingenalutho. Njengoba amandla okokufaka akhuphuka, isiphetho se-armature siba sichema enyakatho noma eningizimu, kuye ngokuthi isiqondiso samanje. Ukunyakaza kwe-armature okuholela kunqunywa yi-amperage yokulawula yamanje, ukungaguquki kwentwasahlobo kanye namandla empendulo yengcindezi ehlukile (efuna ibhalansi ye-torque, njengoba kuchazwe ngezansi). Umugqa wobudlelwano bokufaka/okukhiphayo ungaphansi kuka-10% kuya ku-80% wamanje olinganiselwe.

7 Jan 2019

Ukukhishwa kwebhuloho kazibuthe, i-torque ye-flapper, yona ilawula isilinganiso sebhuloho le-hydraulic. Ku-null, i-flapper iphakathi phakathi kwama-nozzles amabili. Enhla nomfula kusuka ku-nozzle ngayinye kune-orifice ehlinzeka ngokwehla kwengcindezi lapho isistimu ingasebenzi. Phakathi kwe-nozzle ne-orifice ohlangothini ngalunye kunembobo yokulawula. Njengoba i-torque isusa i-flapper isuka komunye umlomo ibheke komunye, umphumela wokucindezela kokulawula okuhlukile, uhlangothi oluphezulu luyilo oluseduze ne-flapper.

I-PCP iyi-valve yokulawula ukucindezela kwe-loop evaliwe esebenzisa ukusabela kwengcindezi ye-hydraulic yangaphakathi ukuze yenze impendulo yangaphakathi. Ngokufakwa kwesinyathelo okuvela emthonjeni wamanje, i-flapper iqale iqonde ku-stroke egcwele ukuze ivale umlomo wombhobho (okuyaliwe) wohlangothi oluphezulu. Umfutho we-fluid ukhuphuka ngapha futhi ubuyisela i-flapper ku-null. Lapho i-torque ephuma kumotho ilingana nokuphuma kwe-torque kusuka kumpendulo yengcindezi, isistimu iyalingana. Ukucindezela kwe-Deferential bese kulinganiswa ne-command current.