Ukuze kukhiqizwe umphumela wokugcina osezingeni eliphezulu, ukwenza izinqubo zezimboni ngokuzenzakalela kudinga izingxenye eziningi ezahlukene ukuze zisebenze ndawonye ngokungenaphutha. Izinzwa zesikhundla, into ephansi kodwa ebalulekile ezenzakalelayo zezimboni, yizona ezizoxoxwa ngazo kulesi sihloko. Izinzwa zesikhundla ezindaweni zokukhiqiza nezokucubungula ziqinisekisa ukuthi imisebenzi ebalulekile ifezwa njengoba kuhleliwe, okusiza ekuqapheni nasekuphatheni izinqubo zokukhiqiza. Ukuze kube sobala kakhudlwana, umsebenzi wazo oyinhloko ukuthola "izinhloso" noma ukuhambisa izinto nokubika ngokuba khona noma ukungabikho kwazo. Amavalvu omoya anezindlela ezahlukene zokusebenzisa ngoba angadlulisela izimpawu ohlelweni olutshela ukuthi lwenze isenzo esihleliwe lapho inhloso ingaphakathi kwebanga elihleliwe lenzwa yesikhundla.

Inzwa yesikhundla ihambisa isignali etshela uhlelo ukuthi luyeke ukwenza lowo msebenzi ohleliwe kusengaphambili noma lushintshele komunye umsebenzi lapho ithagethi isuka kude nenzwa yesikhundla. Nakuba ithagethi ingaba yinoma yini, lesi sihloko sizohlola kuphela ama-targets ensimbi kanye nezindlela "ezijwayelekile" zokuwathola ukuze kube lula. Ama-switch omkhawulo wemishini, ama-inductive proximity sensors, ama-spring limit switch, kanye nama-limit switch ngezinye zalezi zobuchwepheshe. Ukuqonda ulimi olujwayelekile olusetshenziswa iningi labakhiqizi bezinzwa kuyasiza ngaphambi kokubuyekeza izinhlobo eziningi zezinzwa zesikhundla.

• Ububanzi bokuzwa: ukuhlukaniswa phakathi kobuso bokuzwa kanye nethagethi evula iswishi

• I-Hysteresis: ibanga eliphakathi kwendawo yokukhulula kanye nendawo yokuqalisa yeswishi

• Ukuphindaphinda: Amandla esikhathi sokuphila kweswishi okuhlonza njalo ithagethi efanayo ngaphakathi kobubanzi obufanayo.

• Isikhathi sokuphendula: isikhawu esiphakathi kokutholwa kwethagethi kanye nokukhiqizwa kwesignali yokukhipha.

inkinobho yomkhawulo esebenza ngomshini

Amadivayisi e-electromechanical abizwa ngokuthi ama-mechanical limit switch asebenzisa ukuthintana ngqo ngokomzimba nethagethi ukuze azwe indawo yethagethi. Angasekela imithwalo yamandla aphezulu futhi asebenze ngaphandle komthombo wamandla. Ama-mechanical switch awakhathali nge-polarity noma i-voltage ngoba asebenzisa ama-dry contacts, okwenza amelane namaphutha ahlukahlukene kagesi njengomsindo kagesi, ukuphazamiseka kwemvamisa yomsakazo, i-leaking current, kanye nokwehla kwe-voltage. Ingalo ye-lever, inkinobho, umzimba, isisekelo, ikhanda, ama-contacts, ama-terminals, nezinye izinto ezihambayo zalezi switch zivame ukudinga ukulungiswa. Ama-Votto mechanical limit switch angase abe nokuphindaphindeka okubi njengoba ethintana ngqo nethagethi. Ithagethi ngokwayo kanye nengalo ye-lever zingaguga ngokuxhumana ngokomzimba. Kukhona futhi izikhala ezingavikelekile ezingase zithinteke ekugqwaleni, uthuli, kanye nomswakama. Ngenxa yale nkinga, izindawo eziyingozi eziqinisekisiwe kanye nama-contacts avaliwe avame ukufika ngentengo ephezulu.

Umkhawulo weswishi yesipilingi

Iswishi yomkhawulo wentwasahlobo iyithuluzi le-electromechanical elisebenzisa ukukhanga kwemagnethi ukunquma indawo yethagethi yemagnethi. Izinsika ezimbili ezincane zensimbi ezivalelwe eshubhu lengilazi zitholakala ngaphakathi kweswishi. “Into yomhlanga” yilokho okuyikho. Ngenxa yokuzwela kwayo kwemagnethi, into yomhlanga isabela ezinhlosweni zemagnethi ngokuyivuselela. Njengoba zingadingi ukuthintana ngqo nethagethi ukuze zisebenze, izinkinobho zomkhawulo wentwasahlobo zinikeza zonke izinzuzo zezinkinobho zemishini ngenkathi zigwema ubunzima bokuguguleka.

Ama-target ajwayelekile e-ferrous awakwazi ukusetshenziswa ngama-switch e-spring limit; ama-target amagnetic ayadingeka. I-reed switch ayithembekile ngoba i-reed element, i-glass tube, kanye nama-prong amancane ensimbi ayakhathala ngokugoba. Ukucindezela okuphansi kokuthintana kungabangela ukuxokozela kokuthintana kanye nezimpawu ezingalungile ezivela e-reed ezimweni zokudlidliza okuphezulu.

Izinzwa Zokusondela Okuholela Ekungeneni

Idivayisi kagesi yesimo esiqinile ebizwa ngokuthi inzwa yokusondelana evundisayo isebenzisa izinguquko ensimini yamandla yento yensimbi ukuze inqume ukuthi ikuphi. Akudingeki ukuthinta ngokomzimba, futhi azikho izingxenye ezihambayo ezizovimba, ziguge, noma zonakalise, okwehlisa ukugcinwa. Iphinde imelane nothuli nokungcola ngoba ayinazo izingxenye ezihambayo. Izinzwa zokusondelana ezivundisayo ziyakwazi ukuzivumelanisa nezimo eziningi zezinhlelo zokusebenza futhi zitholakala ngobukhulu obuhlukahlukene kanye nemiklamo. Izinzwa zokusondelana ezivundisayo azikwazi ukubekezelela imithwalo yamandla aphezulu futhi zidinga umthombo wamandla wangaphandle (ugesi) ukuze zisebenze. Zingase futhi zibe sengozini yokwehla kwamandla kagesi, imisinga yokuvuza, ukuphazamiseka kwemvamisa yomsakazo, kanye nomsindo kagesi. Ukushintshashintsha kwezinga lokushisa okukhulu kanye nokungena komswakama ngezinye izikhathi kungaba kubi kuzinzwa zokusondelana ezivundisayo.

inkinobho yomkhawulo womkhawulo

Kusetshenziswa ubuchwepheshe obukhethekile obuhlanganisiwe, izinkinobho zomkhawulo zingathola amatshe e-ferrous ngokusebenzisa amasimu kagesi. Izinkinobho zomkhawulo ezingenayo i-lever zithembeke kakhulu ezimweni ezinzima kanye nokusetshenziswa kwesikhathi eside. Njengoba kungekho sidingo sokuthinta ngokomzimba noma amandla angaphandle, imithwalo emikhulu yamanje iyenzeka futhi akukho lutho olungavimba, lugobe, luqhekeze, noma lugaye. Njengezinkinobho zomshini, azithinteki emsindweni kagesi, ukuphazamiseka kwemvamisa yomsakazo, imisinga yokuvuza, kanye nokwehla kwamandla kagesi. Futhi azizweli ku-polarity noma ku-voltage. Uthuli, ukungcola, umswakama, ukuthinta ngokomzimba, kanye neningi lezinto ezibolayo noma amakhemikhali azinawo umphumela kuzinkinobho zomkhawulo. Iningi lezinhlobo linobubanzi bokushisa obusebenzayo futhi liphephile ngokwemvelo. Inkinobho yomkhawulo engenayo i-lever ilungele izinhlelo zokusebenza ezidinga ukuqina kwamanzi kanye nokuvimbela ukuqhuma ngenxa yokuxhumeka kwayo okuvaliwe kanye nokuvalwa kwensimbi eqinile.

Izinzwa zesikhundla zibalulekile ekwenziweni ngokuzenzakalela kwezinqubo zezimboni. Kunezindlela eziningi zobuchwepheshe bezinzwa zesikhundla emakethe, ngayinye inesethi ehlukile yezimpawu zokusebenza. Ukuze kufezwe ukusebenza nokuthembeka okudingekayo, kufanele kuqashelwe ukukhetha uhlobo olufanele lwenzwa yohlelo lokusebenza.