Electromechanical actuators sun zo da yawa iri-iri, tare da na kowa tuki hanyoyin kasancewagubar sukurori, ball sukurori, da abin nadi. Lokacin da mai ƙira ko mai amfani ke son canzawa daga na'urorin lantarki ko na'urorin numfashi zuwa motsi na injin lantarki, na'urar dunƙule abin nadi yawanci shine mafi kyawun zaɓi. Suna samar da kwatankwacin halayen aiki zuwa na'ura mai aiki da karfin ruwa (high karfi) da pneumatics (high gudun), a cikin tsarin da ba shi da wahala.
A abin nadi dunƙuleyana maye gurbin ƙwallo masu zagaye da zaren rollers. Kwayar tana da zaren ciki wanda yayi daidai da zaren dunƙulewa. Ana shirya rollers a cikin wani Tsarin duniya da duka biyun suna jujjuya kan gaturansu kuma suna kewayawa a kusa da goro. Ƙarshen rollers suna haƙori zuwa raga tare da zoben da aka tsara a kowane ƙarshen goro, tabbatar da cewa rollers sun kasance cikin daidaiton daidaituwa, daidai da axis na dunƙule. da goro.
Screw ɗin abin nadi nau'i ne na screw drive wanda ke maye gurbin ƙwallayen da ke sake zagayawa da abin nadi. Ƙarshen rollers ɗin suna haƙori zuwa raga tare da zobba masu dacewa a kowane ƙarshen goro. The rollers duka suna jujjuya akan gaturansu kuma suna kewayawa da goro, a cikin tsarin duniya. (Wannan shi ne dalilin da ya sa ake kuma kira sukurori a matsayin abin nadi na duniya.)
Geometry na dunƙule abin nadi yana ba da ƙarin wuraren tuntuɓar juna fiye da yadda ake yiwuwa tare da aball dunƙule. Wannan yana nufin cewa abin nadi nadi yawanci suna da mafi girman ƙarfin lodi da rigidity fiye da girman sukurori. Kuma fitattun zaren (fiti) suna ba da fa'ida mafi girma na injina, ma'ana cewa ana buƙatar ƙarancin shigar da kayan aiki don ɗaukar nauyi.
Babban fa'idar ƙirar abin nadi (kasa) akan screw ball (saman) shine ikon ƙunsar ƙarin wuraren tuntuɓar a cikin sarari guda.
Saboda rollers masu ɗaukar kaya ba sa tuntuɓar juna, screws na iya yawanci tafiya cikin sauri fiye da screw ƙwallo, waɗanda dole ne su magance ƙarfi da zafi da ƙwalla suka haifar da juna tare da iyakoki na ƙarshen recirculation.
Juyayin abin nadi
Ƙirar da aka juyar da ita tana aiki akan ƙa'ida ɗaya da daidaitaccen abin abin nadi, amma goro yana juya ciki- waje. Saboda haka, kalmar "inverted roller screw." Wannan yana nufin cewa rollers suna juyawa a kusa da dunƙule (maimakon goro), kuma dunƙule na zare ne kawai a cikin yankin da rollers kewaye. Kwayar, don haka, ta zama hanyar tantance tsayi, don haka ya fi tsayi fiye da na goro akan madaidaicin abin nadi. Ana iya amfani da dunƙule ko goro don turawa, amma yawancin aikace-aikacen actuator suna amfani da dunƙule don wannan dalili.
Kera abin jujjuyawar abin nadi yana gabatar da ƙalubalen ƙirƙirar madaidaicin zaren ciki don goro fiye da tsayi mai tsayi, wanda ke nufin ana amfani da haɗin hanyoyin injina. Sakamakon shi ne cewa zaren sun fi laushi, sabili da haka, ma'auni na nau'in nadi mai jujjuya sun yi ƙasa da na daidaitattun sukurori. Amma juzu'i na jujjuyawar suna da fa'idar kasancewa mafi ƙaranci.
Lokacin aikawa: Oktoba-27-2023
