Ukuze kuveliswe iziphumo zokugqibela ezisemgangathweni ophezulu, ukwenza iinkqubo zoshishino ngokuzenzekelayo kufuna izinto ezininzi ezahlukeneyo ukuze zisebenze kunye ngokungenasiphako. Izinzwa zendawo, into encinci kodwa ebalulekileyo kwi-automation yezoshishino, yingongoma ekuza kuxoxwa ngayo kweli nqaku. Izinzwa zendawo kwiindawo zokuvelisa nezokucubungula ziqinisekisa ukuba imisebenzi ebalulekileyo yenziwa njengoko kucwangcisiwe, nto leyo enceda ekujongeni nasekulawuleni iinkqubo zemveliso. Ukuchaneka ngakumbi, umsebenzi wazo oyintloko kukufumana "iithagethi" okanye ukuhambisa izinto kunye nengxelo yokuba zikhona okanye azikho. Iivalvu ze-pneumatic zineendlela ezahlukeneyo zokusetyenziswa kuba zinokudlulisela imiqondiso kwinkqubo iyixelela ukuba yenze isenzo esicwangcisiweyo xa ithagethi ikwindawo ekumgama omiselweyo we-sensor yendawo.

I-position sensor inika isignali exelela inkqubo ukuba iyeke ukwenza loo msebenzi ucwangcisiweyo okanye itshintshele komnye umsebenzi xa i-target isuka kwi-position sensor. Nangona i-target isenokuba yiyo nantoni na ngokwethiyori, eli nqaku liza kuhlola kuphela ii-metallic target kunye neendlela "eziphambili" zokuzifumana ukuze kube lula. Ii-mechanical limit switches, ii-inductive proximity sensors, ii-spring limit switches, kunye nee-limit switches zezinye zezi teknoloji. Ukuqonda ulwimi oluqhelekileyo olusetyenziswa luninzi lwabavelisi bee-sensor luncedo ngaphambi kokuphonononga iintlobo ezininzi zee-position sensors.

• Uluhlu lokuva: ukwahlukana phakathi kobuso bokuva kunye nethagethi evula iswitshi

• I-Hysteresis: umgama ophakathi kwendawo yokukhulula kunye nendawo yokuqalisa yeswitshi

• Ukuphinda-phinda: Amandla obomi bonke eswitshi okuchonga ngokuthe rhoqo ithagethi efanayo ngaphakathi koluhlu olufanayo.

• Ixesha lokuphendula: ixesha eliphakathi kokufunyanwa kwethagethi kunye nokuveliswa kwesignali yemveliso.

iswitshi yomda esisebenza ngoomatshini

Izixhobo ze-electromechanical ezibizwa ngokuba zii-mechanical limit switches zisebenzisa uqhagamshelwano oluthe ngqo nolwe-target ukuze ziqonde indawo ekuyo i-target. Zinokuxhasa imithwalo yamandla aphezulu kwaye zisebenze ngaphandle komthombo wamandla. Ii-mechanical switches azikhathali nge-polarity okanye i-voltage kuba zisebenzisa ii-dry contacts, nto leyo ezenza zingakwazi ukumelana neempazamo ezahlukeneyo zombane ezifana nengxolo yombane, ukuphazamiseka kwerediyo, umsinga wokuvuza, kunye nokuwa kwe-voltage. Ingalo ye-lever, iqhosha, umzimba, isiseko, intloko, ii-contacts, ii-terminals, kunye nezinye izinto ezihambayo zezi switches zihlala zifuna ukulungiswa. Ii-Votto mechanical limit switches zinokuba nobunzima bokuphindaphindeka kuba zithe ngqo ngqo ne-target. I-target ngokwayo kunye nengalo ye-lever zinokuguga ngenxa yoqhagamshelwano lomzimba. Kukwakho nemingxuma engakhuselekanga enokuchaphazeleka kukubola, uthuli, kunye nokufuma. Ngenxa yale ngxaki, iindawo ezinobungozi eziqinisekisiweyo kunye nee-contacts ezivaliweyo zihlala zibiza ixabiso eliphezulu.

Utshintsho lwentwasahlobo olulinganiselweyo

Iswitshi yomda wentwasahlobo sisixhobo se-electromechanical esisebenzisa umtsalane wemagnethi ukumisela indawo ekujoliswe kuyo ngemagnethi. Iiprong ezimbini ezincinci zesinyithi ezivalelwe kwityhubhu yeglasi zifumaneka ngaphakathi kwiswitshi. "Into yomda wengcongolo" yile nto ikhoyo. Ngenxa yobuthathaka bayo bemagnethi, into yomda wengcongolo iphendula kwiithagethi zemagnethi ngokuyivuselela. Ekubeni zingadingi ukudibana ngqo nethagethi ukuze zisebenze, iiswitshi zomda wentwasahlobo zibonelela ngazo zonke izibonelelo zeeswitshi zoomatshini ngelixa ziphepha ubunzima bokuguguleka.

Iithagethi ze-ferrous eziqhelekileyo azinakusetyenziswa ngeeswitshi zomda wentwasahlobo; iithagethi zemagnethi ziyafuneka. Iswitshi yereyi ayithembekanga kuba into yereyi, ityhubhu yeglasi, kunye neentsimbi ezincinci ziyadinwa kukugoba. Uxinzelelo oluphantsi loqhagamshelwano lunokubangela ukuxokozela kwee-contacts kunye nemiqondiso ephosakeleyo evela kwireyi kwiimeko zokungcangcazela okuphezulu.

Izinzwa zokusondela kwe-Inductive

Isixhobo se-elektroniki esiqinileyo esibizwa ngokuba yi-inductive proximity sensor sisebenzisa utshintsho kwicandelo lamandla lento yesinyithi ukuze sifumanise ukuba iphi. Akufuneki ukubamba ngokomzimba, kwaye akukho zinto zishukumayo ezinokuthi zixinge, ziguge, okanye zonakalise, nto leyo enciphisa ukugcinwa. Sikwamelana nothuli kunye nokungcola kuba asinazo izinto ezishukumayo. Ii-inductive proximity sensors zilungelelaniswa kakhulu nezicelo ezahlukeneyo kwaye ziyafumaneka ngobukhulu kunye noyilo oluninzi. Ii-inductive proximity sensors azikwazi ukunyamezela imithwalo yamandla aphezulu kwaye zifuna umthombo wamandla wangaphandle (umbane) ukuze zisebenze. Zisenokuba sesichengeni sokuwa kwevolthi, imisinga yokuvuza, ukuphazamiseka kwerediyo, kunye nengxolo yombane. Ukutshintshatshintsha kobushushu obugqithisileyo kunye nokungena komswakama ngamanye amaxesha kunokuba kubi kwii-inductive proximity sensors.

iswitshi yomda womda

Ngokusebenzisa itekhnoloji ekhethekileyo ye-hybrid, iiswitshi zomda womda zinokufumana iithagethi ze-ferrous ngokusebenzisa amasimi e-electromagnetic. Iiswitshi zomda ezingena-leverless zithembeke kakhulu kwiimeko ezinzima kunye nokusetyenziswa kwexesha elide. Ekubeni kungekho mfuneko yokuchukumisa ngokomzimba okanye amandla angaphandle, imithwalo emikhulu yamandla inokwenzeka kwaye akukho nto inokuxina, igobe, iqhekeze, okanye igrumbe. Njengeeswitshi zoomatshini, azithintelwa yingxolo yombane, ukuphazamiseka kwerediyo, imisinga yokuvuza, kunye nokuhla kwe-voltage. Kwakhona azithinteli i-polarity- okanye i-voltage. Uthuli, ukungcola, ukufuma, ukuchukumisa ngokomzimba, kunye neninzi yezinto ezibolayo okanye iikhemikhali azinampembelelo kwiiswitshi zomda womda. Uninzi lweentlobo zinoluhlu olubanzi lobushushu bokusebenza kwaye zikhuselekile ngokwangaphakathi. Iswitshi yomda engena-lever ifanelekile kwizicelo ezifuna ukuqina kwamanzi kunye nokukhusela ukuqhuma ngenxa yoqhagamshelo lwayo oluvaliweyo kunye nokuvalwa kwesinyithi esiqinileyo.

Izinzwa zesikhundla zibalulekile ekuzenzekeleni kweenkqubo zoshishino. Kukho ubuchwepheshe obuninzi bezinzwa zesikhundla kwimarike, nganye ineempawu zayo zokusebenza ezahlukeneyo. Ukuze kufezekiswe ukusebenza okufunekayo kunye nokuthembeka, kufuneka kukhethwe uhlobo olufanelekileyo lwezinzwa kwisicelo.