Ukuze kukhiqizwe umphumela wokugcina wekhwalithi ephezulu, izinqubo zezimboni ezizenzakalelayo zidinga izingxenye eziningi ezihlukene ukuze zisebenze ndawonye ngokungenasici. Izinzwa zokuma, into enesizotha kodwa ebalulekile kumshini wokuzenzakalela wezimboni, ziyisihloko sale ndatshana. Izinzwa zezikhundla ezikhungweni zokukhiqiza nokucubungula ziqinisekisa ukuthi imisebenzi ebalulekile yenziwa ngendlela ehleliwe, esiza ekuqapheni nasekulawuleni izinqubo zokukhiqiza. Ukucacisa kakhudlwana, umsebenzi wazo oyinhloko ukuthola “okuhlosiwe” noma ukuhambisa izinto nokubika ngobukhona bazo noma ukungabi khona. Amavalvu omoya anokusetshenziswa okuhlukahlukene ngenxa yokuthi angase adlulisele amasignali ohlelweni eyitshela ukuthi yenze isenzo esihleliwe lapho ithagethi ingaphakathi kwebanga elimisiwe lenzwa yokuma.

Inzwa yendawo iletha isignali etshela isistimu ukuthi iyeke ukwenza lowo msebenzi ohlelwe ngaphambilini noma ishintshele komunye umsebenzi lapho ithagethi isuka kude nenzwa yendawo. Nakuba okuhlosiwe kungase kube yinoma yini, lesi sihloko sizohlola kuphela okuqondiwe kwensimbi kanye nezindlela "ezivamile" zokuzithola ukuze kube lula. Ukushintsha komkhawulo wemishini, izinzwa ze-inductive proximity, ukushintsha komkhawulo wasentwasahlobo, nokushintsha komkhawulo obunye balobu buchwepheshe. Ukuqonda ulimi olujwayelekile olusetshenziswa iningi labakhiqizi bezinzwa kuyasiza ngaphambi kokubuyekeza izinhlobo eziningi zezinzwa zokuma.

• Ibanga lezinzwa: ukuhlukana phakathi kobuso nomuzwa kanye nethagethi evula ukushintsha

• I-Hysteresis: ibanga phakathi kwendawo yokukhulula nendawo yokuqalisa yeswishi

• Ukuphindaphinda: Umthamo wesikhathi sokuphila weswishi wokukhomba ngokuqhubekayo ithagethi efanayo ngaphakathi kwebanga elifanayo.

• Isikhathi sokuphendula: isikhawu phakathi kokutholwa kwethagethi nokukhiqizwa kwesignali yokuphumayo.

umkhawulo wokushintsha okuwumshini

Amadivayisi e-electromechanical abizwa ngokuthi amaswishi e-mechanical limit asebenzisa ukuthintana okuqondile ngokomzimba okuqondiwe ukuze ezwe indawo yalowo okuqondiwe. Bangakwazi ukusekela imithwalo yamanje ephezulu futhi basebenze ngaphandle komthombo wamandla. Amaswishi emishini awanandaba ne-polarity noma i-voltage ngoba asebenzisa izixhumanisi ezomile, okuwenza amelane namaphutha ahlukahlukene kagesi njengomsindo kagesi, ukuphazamiseka kwamafrikhwensi omsakazo, ukuvuza kwamandla, nokwehla kwamandla kagesi. Ingalo yesigwedlo, inkinobho, umzimba, isisekelo, ikhanda, abathintwayo, amatheminali, nezinye izinto ezihambayo zalezi zinguquko ngokuvamile zidinga ukulungiswa. Amaswishi omkhawulo womshini we-Votto angase angaphindaphindeki kahle njengoba ethintana ngqo nokuhlosiwe. Ithagethi ngokwayo kanye nengalo yokulinganisa kungase kugqokwe ngokuthintana ngokomzimba. Kukhona nezimbobo ezingavikelekile ezingenwa ukugqwala, uthuli nomswakama. Ngenxa yale nkinga, izindawo eziyingozi eziqinisekisiwe kanye noxhumana nabo abavaliwe ngokuvamile beza ngentengo ephezulu.

Khawulela ukushintsha kwentwasahlobo

Iswishi yomkhawulo wentwasahlobo iyithuluzi elisebenza ngogesi elisebenzisa ukukhanga kazibuthe ukuze linqume indawo yethagethi kazibuthe. Ama-prong amabili ensimbi avalelwe eshubhuni yengilazi atholakala ngaphakathi kweswishi. "Isici somhlanga" yilokho okuyikho. Ngenxa yokuzwela kwayo kazibuthe, i-elementi yomhlanga iphendula okuqondiwe kazibuthe ngokuvula. Njengoba zingadingi ukuthintana okuqondile nethagethi ukuze zisebenze, ukushintsha komkhawulo wentwasahlobo kunikeza zonke izinzuzo zokushintshwa kwemishini kuyilapho kugwenywa ubunzima bokugqoka.

Okuhlosiwe okujwayelekile kwe-ferrous akukwazi ukusetshenziswa ngokushintsha komkhawulo wasentwasahlobo; okuhlosiwe kazibuthe kuyadingeka. Iswishi yomhlanga ayithembeki ngenxa yokuthi izakhi zomhlanga, ishubhu lengilazi, nama-prong amancane ensimbi ayakhathala ngokugoba. Ingcindezi yokuxhumana ephansi ingase ibangele ukuxokozela abathintwayo namasiginali ayiphutha asuka emhlangeni ezimeni zokudlidliza okuphezulu.

Izinzwa ze-Inductive Proximity

Idivayisi ye-elekthronikhi yesimo esiqinile ebizwa ngokuthi inzwa ye-inductive proximity isebenzisa izinguquko emkhakheni wamandla wento eyinsimbi ukuze inqume ukuthi ikuphi. Ukuthinta umzimba akudingekile, futhi azikho izingxenye ezinyakazayo eziya kujamu, ukuguga, noma ukulimala, okwehlisa ukulungiswa. Iphinde imelane nothuli nokungcola ngoba ayinazo izingxenye ezinyakazayo. Izinzwa ze-inductive proximity zivumelana kakhulu nezimo ezihlukahlukene zezinhlelo zokusebenza futhi zitholakala ngenani losayizi nemiklamo. Izinzwa ze-inductive proximity azikwazi ukubekezelela imithwalo yamanje ephezulu futhi zidinga umthombo wamandla wangaphandle (ugesi) ukuze zisebenze. Bangase futhi babe sengozini yokwehla kwamandla kagesi, amaza okuvuza, ukuphazamiseka kwamafrikhwensi omsakazo, nomsindo kagesi. Ukushintshashintsha kwezinga lokushisa elidlulele kanye nokungena komswakamo kungase kube kubi ngezikhathi ezithile kuzinzwa ze-inductive proximity.

umkhawulo wokushintsha ukushintsha

Ngokusebenzisa ubuchwepheshe obukhethekile be-hybrid, ukushintshwa komkhawulo kungathola okuqondiwe okuyinsimbi ngezinkambu ze-electromagnetic. Ukushintshwa komkhawulo we-Leverless kuthembeke ngendlela emangalisayo ezimeni eziyinselele nokusetshenziswa isikhathi eside. Njengoba singekho isidingo sokuthinta ngokomzimba noma amandla angaphandle, imithwalo emikhulu yamanje ingenzeka futhi akukho lutho olungase lugxume, lugobe, luhlakaze, noma lugaye. Ngokufana nokushintsha kwemishini, awakwazi ukumelana nomsindo kagesi, ukuphazamiseka kwefrikhwensi yomsakazo, ukuvuza kwamaza, kanye nokwehla kwamandla kagesi. Futhi azikho i-polarity- noma i-voltage-sensitive. Uthuli, ukungcola, ukuswakama, ukuthinta ngokomzimba, kanye neningi lezinto ezibolayo noma amakhemikhali azinawo umthelela ekushintsheni komkhawulo. Izinhlobo eziningi zinebanga lokushisa elibanzi elisebenzayo futhi ziphephile ngaphakathi. I-leverless limit switch ilungele izinhlelo zokusebenza ezidinga ukungangeni kwamanzi kanye nokuqinisekisa ukuqhuma ngenxa yokuxhumana kwayo okuvaliwe kanye nendawo ebiyelwe ngensimbi eqinile.

Izinzwa zesikhundla zibalulekile ekuzisebenzeleni kwezinqubo zezimboni. Kunobuchwepheshe obuningi benzwa yokuma emakethe, ngayinye inesethi ehlukile yezimpawu zokusebenza. Ukuze kutholwe ukusebenza okudingekayo nokuthembeka, kufanele kuqashelwe ukukhetha uhlobo olufanele lwenzwa yohlelo lokusebenza.