Choyeretsera cha Rack ndi Pinion
Kodi choyezera cha Rack ndi Pinion n'chiyani?
Zoyendetsa mpweya zozungulira ndi pinion, omwe amatchedwanso ma cylinders ozungulira pang'ono, ndi ma actuator ozungulira omwe amagwiritsidwa ntchito potembenuza, kutsegula, kutseka, kusakaniza, kugwedezeka, kuyimitsa, kuyendetsa ndi ntchito zina zambiri zamakaniko zomwe zimaphatikizapo kuzungulira kocheperako. Ma actuator awa nthawi zambiri amagwiritsidwanso ntchito poyendetsa ma valve ozungulira kotala, monga ma valve a mpira kapena gulugufe.
Zoyendetsa ma pneumatic rack-and-pinionSinthani mphamvu ya mpweya wopanikizika pogwiritsa ntchito silinda ya pneumatic kukhala kayendedwe kozungulira kozungulira. Mpweya woyera, wouma, komanso wokonzedwa womwe umafunika ndi actuator iyi umaperekedwa kudzera pa siteshoni yapakati yopanikizika ya mpweya, yomwe nthawi zambiri imathandizira zida zosiyanasiyana za pneumatic mu dongosolo la processing.
Zinthu zazikulu za Rack ndi Pinion actuator
Poyerekeza ndi zida zawo zamagetsi,Zoyendetsa pakhoma ndi pakhoma nthawi zambiri zimakhala zolimba, zoyenera bwino malo oopsa komanso zotsika mtengo. Kuphatikiza apo, nthawi zambiri zimafuna kusamalidwa pang'ono ndipo zimapereka mphamvu zambiri poyerekeza ndi kukula kwake.
Mafotokozedwe aukadaulo a Rack ndi Pinion actuator
Kapangidwe ka chikombole chimodzi poyerekeza ndi kapangidwe ka chikombole chapawiri
Ma actuator a rack-and-pinion amapereka mtunda wokulirapo wa torque ndi kuzungulira poyerekeza ndi njira zina zosinthira mphamvu yolunjika kukhala torque yozungulira. Ili ndi mphamvu yayikulu yamakina ndipo ma torque omwe amatha kupanga amakhala kuyambira pa Nm zingapo mpaka zikwi zingapo za Nm.
Komabe, vuto limodzi lomwe lingachitike chifukwa cha kapangidwe ka rack-and-pinion ndi backlash. Backlash imachitika pamene ma rack ndi ma pinion gears sizikugwirizana bwino ndipo pali mpata wochepa pakati pa kulumikizana kulikonse kwa gear. Kusakhazikika kumeneku kungayambitse kuwonongeka kwa ma gears panthawi yonse ya actuator, zomwe zimapangitsa kuti backlash ipitirire.
Chida chopachikirapo chawiri chimagwiritsa ntchito ma racks awiri mbali zosiyana za pinion. Izi zimathandiza kuchotsa kugwedezeka chifukwa cha mphamvu yotsutsana komanso kuwirikiza kawiri mphamvu yotulutsa ya chipangizocho ndikuwonjezera mphamvu ya makina ya dongosololi. Mu actuator yogwira ntchito kawiri yomwe yawonetsedwa pa Chithunzi 3, zipinda ziwiri zomwe zili m'mbali mwake zimadzazidwa ndi mpweya wopanikizika, womwe umakankhira ma piston pakati ndipo kuti ma piston abwerere pamalo oyamba, chipinda chomwe chili pakati chimakakamizidwanso.
Ntchito
Ma actuator oyenda ndi mpweya otchedwa rack-and-pinion akhoza kukhala oyenda kamodzi kapena kawiri. N'zothekanso kuti ma actuator awa azitha kuyimitsa zinthu zingapo.
Kuchita sewero limodzi motsutsana ndi kuchita sewero kawiri
Mu actuator yogwira ntchito imodzi, mpweya umaperekedwa mbali imodzi yokha ya pisitoni ndipo umayang'anira kuyenda kwa pisitoni mbali imodzi yokha. Kuyenda kwa pisitoni mbali inayo kumachitika ndi kasupe wamakina. Actuator yogwira ntchito imodzi yokha imasunga mpweya wopanikizika, koma imagwira ntchito mbali imodzi yokha. Vuto la masilinda ogwira ntchito imodzi ndi mphamvu yosagwirizana yotulutsa kudzera mu stroke yonse chifukwa cha mphamvu ya kasupe yotsutsana nayo. Chithunzi 4 chikuwonetsa actuator yozungulira ya pneumatic yogwira ntchito imodzi yokha.
Mu actuator yogwira ntchito kawiri, mpweya umaperekedwa ku zipinda zomwe zili mbali zonse ziwiri za pistoni. Kuthamanga kwa mpweya kwambiri mbali imodzi kumatha kuyendetsa pistoni (ma pistoni) mbali inayo. Ma actuator ogwira ntchito kawiri amagwiritsidwa ntchito pamene ntchito ikufunika kuchitika mbali zonse ziwiri. Chithunzi 5 chikuwonetsa actuator yozungulira ya pneumatic yogwira ntchito kawiri.
Ubwino umodzi wa masilinda awiri ndi mphamvu yotulutsa nthawi zonse kudzera mu kuzungulira konse. Zoyipa za masilinda awiri ndi kufunikira kwawo mpweya wopanikizika kuti ayende mbali zonse ziwiri komanso kusowa malo odziwika bwino ngati mphamvu kapena kupanikizika kwalephera.
Malo angapo
Ma actuator ena a rack-and-pinion amatha kuyima pamalo osiyanasiyana kudzera mu kuzungulira kwa mtunda mwa kulamulira kuthamanga kwa mpweya pa madoko. Malo oyima akhoza kukhala mu ndondomeko iliyonse, zomwe zimapangitsa kuti actuator idutse mosankha malo oyima pakati pa mtunda.
Maboti oimika magalimoto
Maboluti oimika magalimoto ali mbali ya thupi la actuator (monga momwe taonera pa Chithunzi 6) ndipo amalola kusintha malo omalizira a ma pistoni mwa kuchepetsa kuzungulira kwa giya ya pinion kuchokera mkati. Mukayika actuator, yendetsani ma boluti onse awiri oimika magalimoto mpaka atakhudza chivundikiro cha travel stop. Pitirizani kukulunga boluti yoimika magalimoto kumanzere mpaka malo oimika magalimoto omwe akuwoneka pamwamba azungulira kupita kumalo omwe ali ofanana ndi kutalika kwa thupi la actuator.
Kugwiritsa Ntchito Mankhwala: gawo losinthira magetsi
Chifukwa cha mphamvu yawo yotulutsa mphamvu nthawi zonse,Zoyendetsa pakhoma ndi pakhomaamagwiritsidwa ntchito mobwerezabwereza ndipo nthawi zambiri ndi njira yabwino kwambiri yogwiritsira ntchito ma actuator a pneumatic pama valve. Amagwiritsidwa ntchito posakaniza, kutaya, kudyetsa pang'onopang'ono, kuzungulira kosalekeza, kutembenuza, kuyika, kusuntha, kukweza, kutsegula ndi kutseka ndi kutembenuza. Ma actuator awa amagwiritsidwa ntchito pa ntchito zosiyanasiyana zamakanika mumakampani opanga zitsulo, kusamalira zinthu, ntchito zapamadzi, zida zomangira, makina opangira migodi, ndi chiwongolero chamagetsi cha hydraulic.
