Kuti pakhale zotsatira zabwino kwambiri, kuyendetsa makina a mafakitale kumafuna zigawo zosiyanasiyana kuti zigwire ntchito limodzi bwino. Ma sensor a malo, chinthu chochepa koma chofunikira kwambiri pa automation yamafakitale, ndi mutu wa nkhaniyi. Ma sensor a malo m'malo opangira ndi kukonza zinthu amaonetsetsa kuti ntchito zofunika zachitika monga momwe zakonzedwera, zomwe zimathandiza pakuwunika ndi kuyang'anira njira zopangira. Kunena zoona, ntchito yawo yayikulu ndikupeza "zolinga" kapena kusuntha zinthu ndikupereka lipoti la kukhalapo kapena kusakhalapo kwawo. Ma valve a pneumatic ali ndi ntchito zosiyanasiyana chifukwa amatha kutumiza zizindikiro ku dongosolo ndikuuza kuti lichite zomwe zakonzedwa kale pamene chandamale chili patali ndi sensor ya malo.

Sensa ya malo imapereka chizindikiro chouza makina kuti asiye kugwira ntchito yomwe yakonzedwa kale kapena kusinthana ndi ntchito ina pamene cholingacho chikuchoka pa sensa ya malo. Ngakhale kuti cholingacho chingakhale chilichonse, nkhaniyi imangoyang'ana zigoli zachitsulo ndi njira "zazikulu" zopezera kuti zikhale zosavuta. Ma switch a makina, ma sensor apafupi, ma switch a malire a masika, ndi ma switch a malire ndi zina mwa ukadaulo uwu. Kumvetsetsa chilankhulo chodziwika bwino chomwe opanga masensa ambiri amagwiritsa ntchito ndikothandiza musanayang'ane mitundu yambiri ya ma sensor a malo.

• Kuzindikira kwapadera: kusiyana pakati pa nkhope yozindikira ndi cholinga choyambitsa switch

• Hysteresis: mtunda pakati pa malo otulutsira ndi malo oyendetsera magetsi a switch

• Kubwerezabwereza: Mphamvu ya switch nthawi zonse yodziwira cholinga chomwecho mkati mwa range yomweyo.

• Nthawi yoyankhira: nthawi yosiyana pakati pa kuzindikira cholinga ndi kupanga chizindikiro chotulutsa.

chosinthira malire chomwe chimagwira ntchito mwamakina

Zipangizo zamagetsi zotchedwa ma mechanical limit switch zimagwiritsa ntchito kukhudzana mwachindunji ndi chandamale kuti zizindikire malo omwe chandamale chili. Zimatha kuthandizira mphamvu zambiri zamagetsi ndipo zimagwira ntchito popanda magetsi. Ma mechanical switch sasamala za polarity kapena voltage chifukwa amagwiritsa ntchito ma contact ouma, zomwe zimapangitsa kuti asagwirizane ndi zolakwika zosiyanasiyana zamagetsi monga phokoso lamagetsi, kusokoneza ma radio frequency, leak current, ndi kutsika kwa voltage. Mkono wa lever, batani, thupi, maziko, mutu, ma contact, ma terminals, ndi zinthu zina zosuntha za ma switch awa nthawi zambiri zimafuna kukonzedwa. Ma Votto mechanical limit switch angakhale osatheka kubwerezabwereza chifukwa amakhudzana mwachindunji ndi chandamale. Chandamale chokha komanso mkono wa lever zitha kuwonongeka chifukwa chokhudzana ndi chandamale. Palinso mipata yosatetezedwa yomwe imatha kukhudzidwa ndi dzimbiri, fumbi, ndi chinyezi. Chifukwa cha vutoli, malo owopsa ovomerezeka komanso ma contact otsekedwa nthawi zambiri amakhala okwera mtengo kwambiri.

Chosinthira cha masika chokhazikika

Chosinthira malire a kasupe ndi chida chamagetsi chomwe chimagwiritsa ntchito kukoka kwa maginito kuti chidziwe komwe kuli cholinga cha maginito. Zitsulo ziwiri zazing'ono zachitsulo zomwe zili mu chubu chagalasi zimapezeka mkati mwa chosinthira. "Chinthu cha bango" ndi chomwe chili. Chifukwa cha mphamvu yake ya maginito, chinthu cha bango chimayankha ku zolinga za maginito poyambitsa. Popeza sizifuna kukhudzana mwachindunji ndi cholinga kuti zigwire ntchito, maginito a malire a kasupe amapereka zabwino zonse za maginito amakina pomwe amapewa zovuta zogwiritsidwa ntchito.

Ma ferrous characteristics sangagwiritsidwe ntchito ndi ma spring limit switch; ma magnetic characteristics ndi ofunikira. Reed switch ndi yosadalirika chifukwa reed element, glass chubu, ndi chitsulo chaching'ono zimatopa chifukwa chopindika. Kuthamanga kochepa kwa contact kungayambitse phokoso la ma connections ndi zizindikiro zolakwika kuchokera ku reed pamene zinthu zikugwedezeka kwambiri.

Masensa a Pafupi Poyambitsa

Chipangizo chamagetsi chotchedwa inductive proximity sensor chimagwiritsa ntchito kusintha kwa mphamvu ya chinthu chachitsulo kuti chidziwe komwe chili. Kukhudza thupi sikofunikira, ndipo palibe zinthu zosuntha zomwe zingatseke, kutha, kapena kuwonongeka, zomwe zimachepetsa kukonza. Chimalimbananso ndi fumbi ndi zinyalala chifukwa chilibe zinthu zosuntha. Zitsulo zozungulira zozungulira zimatha kusinthasintha kwambiri pa ntchito zosiyanasiyana ndipo zimapezeka m'makulidwe ndi mapangidwe osiyanasiyana. Zitsulo zozungulira zozungulira sizingathe kupirira mphamvu zambiri zamagetsi ndipo zimafuna mphamvu yakunja (magetsi) kuti zigwire ntchito. Zingakhalenso zosavuta kutsika kwa magetsi, mafunde otuluka, kusokoneza ma wailesi, ndi phokoso lamagetsi. Kusintha kwakukulu kwa kutentha ndi kulowa kwa chinyezi nthawi zina kungakhale koipa kwa zitsulo zozungulira zozungulira zozungulira.

chosinthira malire

Pogwiritsa ntchito ukadaulo wapadera wosakanizidwa, ma switch oletsa malire amatha kupeza zigoli za ferrous kudzera m'magawo amagetsi. Ma switch oletsa malire opanda lever ndi odalirika kwambiri pamavuto komanso kugwiritsidwa ntchito kwa nthawi yayitali. Popeza palibe chifukwa chokhudza thupi kapena mphamvu yakunja, mphamvu zazikulu zamagetsi zimatha ndipo palibe chomwe chingatseke, kupindika, kusweka, kapena kugayidwa. Mofanana ndi ma switch amakina, sakhudzidwa ndi phokoso lamagetsi, kusokonezedwa ndi ma radio frequency, mafunde otuluka, ndi kutsika kwa magetsi. Komanso sakhudzidwa ndi polarity kapena voltage. Fumbi, matope, chinyezi, kukhudza thupi, ndi zinthu zambiri zowononga kapena mankhwala sizikhudza ma switch oletsa malire. Mitundu yambiri imakhala ndi kutentha kwakukulu ndipo ndi yotetezeka mwachilengedwe. switch yoletsa malire yopanda lever ndi yoyenera kugwiritsa ntchito yomwe imafunikira kulimba kwa madzi ndi kuphulika chifukwa cha kulumikizana kwake kotsekedwa komanso chitsulo cholimba.

Masensa a malo ndi ofunikira kwambiri pakupanga makina azinthu zamafakitale. Pali ukadaulo wambiri wa masensa a malo pamsika, uliwonse uli ndi mawonekedwe ake apadera. Kuti mukwaniritse magwiridwe antchito oyenera komanso odalirika, muyenera kusankha mtundu woyenera wa sensa ya ntchitoyo.