Ama-valve kagesi nawe-pneumatic actuators Isingeniso Ama-valve angasindi ama-pneumatic actuators

Ama-valve kagesi nawe-pneumatic actuators Isingeniso I-valve ye-pneumatic actuators engasindi I-activator kagesi ngokuvamile yakhiwa injini, isinciphisi, indlela yokusebenza yesandla, indawo yomshini ekhombisa indlela kanye nezinye izingxenye. Uma kuqhathaniswa nezinye idivayisi yokushayela i-valve, idivayisi yokushayela kagesi inezici zomthombo wamandla, ukusebenza okusheshayo, okulula, nokulula ukuhlangabezana nezidingo ezihlukahlukene zokulawula. Ngakho-ke, kudivayisi ye-actuation ye-valve, idivayisi kagesi iyinhloko. Yenza ithebula le-convex kukholamu ejikelezayo kanye nesiqondiso semicibisholo ezinhlangothini zombili ngokuyisisekelo kuhambisane kuze kube yilapho ukuzungezisa kubuyele ku-shaft ephezulu. Bese unikeza isignali evulekile nevaliwe, ubone ukuthi i-valve iyahlangabezana yini nezidingo... I-valve actuating mechanism Ukwethulwa kwezixhumi zikagesi nezomoya 1.1 I-actuator ye-pneumatic Idivayisi yokushayela umoya we-valve iphephile, ithembekile, inezindleko eziphansi, kulula ukuyisebenzisa nokuyinakekela, iyi- igatsha le-valve drive mechanism. Amadivaysi omoya asetshenziswa kakhulu ezinhlelweni zokuvikela ukuqhuma. Idivayisi ye-valve pneumatic drive isebenzisa ingcindezi yokusebenza yomthombo womoya iphansi, usayizi wesakhiwo awumkhulu, ingqikithi yedivayisi ye-valve pneumatic drive ayinkulu kakhulu. I-pneumatic ifilimu ezacile I actuator Intwasahlobo eyodwa, isenzo esihle Iziphethu eziningi, ukusabela Isilinda esivundlile I actuator ephindwe kabili (ayikho intwasahlobo) Isenzo esisodwa (spring return) I-actuator kagesi I-actuator kagesi ngokuvamile yakhiwa injini, isinciphisi, indlela yokusebenza yesandla, indawo yomshini ekhombisa indlela kanye ezinye izingxenye. Uma kuqhathaniswa nezinye idivayisi yokushayela i-valve, idivayisi yokushayela kagesi inezici zomthombo wamandla, ukusebenza okusheshayo, okulula, nokulula ukuhlangabezana nezidingo ezihlukahlukene zokulawula. Ngakho-ke, kudivayisi ye-actuation ye-valve, idivayisi kagesi iyinhloko. 2. Ukugunyazwa kwe-actuator 2.1 Ukukhishwa kwekhanda likagesi Lapho ulungisa iphutha ku-actuator kagesi, sebenzisa isondo lesandla ukuvula i-valve endaweni emaphakathi, bese unikeza isignali evulekile noma evaliwe, ukuze ubone ukuthi i-valve ihamba ngendlela efanele, uma okuphambene, i-motor ihlehlisiwe, idinga kuphela ukushintshanisa izigaba ezimbili ze-motor ezintathu-phase power supply. Iswishi ye-torque isethwe ngemuva kokuphuma embonini, futhi ngokuvamile ayidingi ukulungiswa. Uma kudingeka ukulungiswa, thola inani lesikali kuswishi yetorque encwadini yeziqondiso ukuze ulungise. Isikolo esilungisiwe sokushintshwa kwe-stroke eduze nokuvuleka, eduze nokulungisa, "uhlezi", i-valve shaft ene-screwdriver phansi. Futhi ukuzungezisa okungu-90 ° kungabhajwa, cindezela eduze komcibisholo uphonswe ukuze ulungise nati, kuze kusondele ukuzungezisa isenzo sekholomu, zungezisa ikholomu epulatifomu ye-convex ihambisana nomcibisholo wesiqondiso kusisekelo sokuthi (isimo esingesona isenzo, i-convex isiqondiso nomcibisholo oqonde mpo). Lapho ulungisa indlela yokuvula, vula mathupha i-valve ukuze "ivuleke ngokugcwele", cindezela i-shaft ephezulu nomshayeli, bese uphendukisa u-90° ukuze ubambeke, cindezela umcibisholo ovulekile ukuze uzungezise inadi yokulungisa evulekile, kuze kube yilapho isenzo sekholomu ejikelezayo evulekile, ukuze ikhanda le-convex kukholamu ejikelezayo kanye nesiqondiso semicibisholo nhlangothi zombili ngokuyisisekelo kufane, zungezisa i-shaft ephezulu ukuze usethe kabusha. Bese unikeza isignali evulekile, evaliwe, ubone ukuthi i-valve iyahlangabezana yini nezidingo. 2.2 Ukulungisa iphutha kwekhanda elisebenza ngomoya womoya Ukulungisa iphutha le-actuator ye-pneumatic, ikakhulukazi ekususeni iphutha kwesimo. Okokuqala beka ukuvala indawo ye-valve, ukuze kuqinisekiswe ukuthi i-valve ivaleke ngokuqinile, vula i-coupling nut ukuze isikulufi kusiqu se-valve kuze kube manje, umgogodla we-valve nesihlalo se-valve kufanele zithinte eduze, isikali sokulungisa i-stem stroke sibe uziro, bese sijika. emoyeni, ingcindezi yokuhambisa komoya eya kungcindezi edingekayo ene-valve yokunciphisa ingcindezi, bese usebenzisa i-4 ma generator yesiginali yamanje kokokufaka kwendawo, Lungisa isondo lesandla lokulungisa iphoyinti elinguziro ku-positioner kuze kube yilapho i-valve iqala ukusebenza, bese ufaka u-20mA. okwamanje, lungisa isondo lesandla elilungisa iphoyinti elinguziro kanye nedivayisi yokulungisa ububanzi ngokwesilinganiso sokushaya ukuze wenze i-stem stroke ivuleke ngokugcwele, bese uphinda izinyathelo zokufaka ezingu-4mA no-20mA, kuze kube yilapho ivalvu ifinyelela izimfuneko ze-4mA ivalwe ngokugcwele futhi ivuleke ngokuphelele ngu-20mA. . Ukuze kuqinisekiswe ukuthi i-valve ivaliwe ku-4mA, i-4.10 ~ 4.15mA yamanje ingaba okokufaka njengesignali yokuvala ngokugcwele ngesikhathi sokulungisa iphutha, ukuze i-4mA yamanje ingakwazi ukuvala nakanjani i-valve esimweni sokusebenza sangempela. Wonke ama-actuator amafilimu e-pneumatic multi-spring alula akhiwe nge-diaphragm, i-compression spring, ithreyi, induku yokusunduza, ubakaki, ikhava yefilimu ye-bushing nezinye izingxenye eziyinhloko. I-diaphragm inomumo womcengezi ojulile, ohlanganiswe nerabha ye-butadiene ukuze kuthuthukiswe amandla endwangu ye-polyester nokuqinisekisa ukuqina, futhi ingasetshenziswa ekushiseni okungama-30~85℃. Intwasahlobo yokucindezela isebenzisa inhlanganisela yemithombo eminingi esikhundleni sentwasahlobo enkulu esakhiweni esivamile, ngaleyo ndlela inciphisa ukuphakama. Inombolo yeziphethu ingahlukaniswa ibe ngu-4, 6, noma 8. Ingaphezulu eliqondisayo le-push rod seliqediwe futhi liphathwa phezulu ... Ama-activator omoya okhanyayo ayaziwa nangokuthi ama-actuator amancane amancane. Lo mkhiqizo unezici zesisindo sokukhanya, ukuphakama okuncane, isakhiwo esihlangene, ukufakwa okulula, isenzo esithembekile, amandla amakhulu okukhipha, ukonga amandla nokunye. Uma KUFAKWA KU-valve, uma kuqhathaniswa ne-valve yokulawula umoya wendabuko, ukuphakama kuncishiswa ngo-30%, isisindo sincishiswa ngo-30%, kodwa umthamo wokugeleza ukhuphuka ngo-30%, futhi ububanzi obuguquguqukayo bunwetshwa ku-50: 1 . Isakhiwo sayo kanye nesimiso sokusebenza kuboniswa kuMfanekiso 2-20 FIG. I-2-20 light duty pneumatic actuator A) i-stroke eqondile (uhlobo lokusabela) b) i-angular stroke (uhlobo lwesenzo esihle) I-actuator yefilimu ekhanyayo yomoya we-multi-spring ingahlukaniswa ibe uhlobo olusebenzayo olusebenzayo (Umfanekiso 2-20B) nohlobo olusebenzayo olunegethivu (Umfanekiso 2-20A) ngokuya ngemodi yesenzo. Ngemuva kokwakhiwa kwe-valve elawulayo, ngokusho kwemodi yokuvula nokuvala ihlukaniswe yaba izinhlobo ezimbili zegesi off kanye negesi evulekile. Umfanekiso 2-20A uyi-straight stroke pneumatic actuator. Yamukela isignali yomfutho womoya ophuma entweni elawulayo, noma isignali kagesi iguqulwa ibe ukucindezela komoya ngesiguquli sikagesi, okokufaka egumbini lomoya, isebenze kufilimu ngemva kokuphonswa, ukuze umnyakazo wenduku ephumayo. Lokhu kucindezela kucindezela intwasahlobo ngesikhathi esifanayo, kuze kube yilapho kulinganiswa namandla okusabela entwasahlobo, ukuze induku yokukhipha ifinyelele endaweni enqunywe kusengaphambili. Umfanekiso 2-20B uyi-angular stroke actuator pneumatic. Umgomo wayo wokusebenza uthi: ingcindezi yesignali noma isignali kagesi evela ensimbini elawulayo, ngokuguqulwa kukagesi ube okokufaka kwengcindezi yomoya egumbini lomoya, esebenza efilimini ukuze ikhiqize i-thrust, ukuze ukunyakaza kwe-push rod, bese kuba ngokuzungezisa ngomugqa. umshini oguqulwa ube yi-torque, ukukhishwa kwe-angular. Lapho induku yokukhipha ifinyelela endaweni enqunywe kusengaphambili, ukukhishwa kwe-angular stroke nakho kuqinisekile. Uma i-actuator ne-positioner kuhlangene, i-engeli yokuzungezisa ye-shaft yokuphumayo ibuyiselwa ku-positioner, engafinyelela injongo yokuma okunembile kwe-engeli yokuzungezisa. Wonke ama-actuator amafilimu e-pneumatic multi-spring alula akhiwe nge-diaphragm, i-compression spring, ithreyi, induku yokusunduza, ubakaki, ikhava yefilimu ye-bushing nezinye izingxenye eziyinhloko. I-diaphragm inomumo womcengezi ojulile, ohlanganiswe nerabha ye-butadiene ukuze kuthuthukiswe amandla endwangu ye-polyester nokuqinisekisa ukuqina, futhi ingasetshenziswa ekushiseni okungama-30~85℃. Intwasahlobo yokucindezela isebenzisa inhlanganisela yemithombo eminingi esikhundleni sentwasahlobo enkulu esakhiweni esivamile, ngaleyo ndlela inciphisa ukuphakama. Inombolo yeziphethu ingahlukaniswa ibe ngu-4, 6, noma 8. Indawo yomhlahlandlela ye-push rod iqediwe futhi ingaphezulu iphathwa ukuze kuthuthukiswe ubulukhuni, kuncishiswe ubulukhuni obungaphezulu, kunciphise iphutha lokubuyisela futhi kwandise umphumela wokuvala. I-activator yohlobo lokusabela ngokuvamile isebenzisa indandatho engu-0 yokuvala uphawu kanye nenduku yokusunduza, umkhono we-shaft, isakhiwo esilula, ukubekwa uphawu okuthembekile, idizayini ngaphandle kokucindezelwa komshini wokulungisa intwasahlobo, ingahlanganiswa ngesikhathi, akudingekile ukulungisa. Ukuxhumana kwenduku yokusunduza kanye nesiqu se-valve kungasetshenziswa ngokujwayelekile ukuvula i-seam nut, ukuhlakazeka kalula nokuhlanganisa. Kuma-actuator womoya womsebenzi okhanyayo, ama-activator womoya entwasahlobo aphindwe kabili njengoba kukhonjisiwe kuMfanekiso 2-21 nawo angasetshenziswa. Ifaka intwasahlobo encane phakathi kwentwasahlobo enkulu. Imithombo emibili isebenza ngokuphakama okufanayo kodwa inokuqina okuhlukile, kodwa ukuqina okuphelele kuyisamba sokuqina kwemithombo emibili. Ngale ndlela, ukuphakama okuphelele kwe-actuator yonke kungancishiswa, ukuze isakhiwo sihlanganiswe kakhulu. I-FIG. 2-21 i-double spring pneumatic actuator A) Umoya ovulekile b) uvaliwe umoya Njengoba AMA-LIGHTWEIGHT ACTUATORS wepneumatic WAKHIWA NGEZINHLOBO ZAMANINGI EZINDLU EZINDLENI EZIFILIMU EZINCANE, UKUSEKELA OKUKHULU KWEZAKHIWO EZIVILEYO INGABANZA INGXENYELWE AMACYLINDERE amabili ensimbi. Lesi sakhiwo silula ngesisindo futhi sithembekile ngokwanele emandleni; Okubi ukuthi ukushaywa kokulungiswa kufanele kususwe futhi kulungiswe ngaphambi kokufaka ikhava engaphezulu yegumbi le-diaphragm. Uma intwasahlobo idingeka ukuthi isetshenziselwe ukucindezela okukhulu noma i-caliber enkulu, idinga amandla amakhulu, futhi ifuna isakhiwo esihlangene, ungasebenzisa uhlaka lwekhanda le-membrane eliphindwe kabili, bheka Umfanekiso 2-22. Nakuba isakhiwo siyinkimbinkimbi kakhulu, asisindi. Amakhanda awo olwelwesi olubili ane-diaphragm esebenza ndawonye ukuze amukele isignali efanayo yokucindezela komoya, amandla aphumela ekubeni aphushe isenzo se-stem, amandla aphumayo angafinyelela ku-3000-60000N.