Electromechanical actuators tuaj nyob rau hauv ntau yam, nrog rau kev tsav mechanismstxhuas screws, pob screws, thiab cov menyuam screws. Thaum tus tsim qauv lossis cov neeg siv xav hloov pauv ntawm hydraulics lossis pneumatics mus rau electromechanical motion, cov menyuam ntsia hlau actuators feem ntau yog qhov kev xaiv zoo tshaj. Lawv muab cov yam ntxwv ua tau zoo sib xws rau hydraulics (siab zog) thiab pneumatics (siab ceev), nyob rau hauv ib tug tsawg complex system.
A cov menyuam ntsia hlauHloov cov pob recirculating nrog threaded rollers.Cov txiv ntseej muaj cov xov sab hauv uas phim cov ntsia hlau xov. Cov rollers yog teem rau hauv a Planetary configuration thiab ob leeg spin ntawm lawv axes thiab orbit nyob ib ncig ntawm lub txiv ntseej.Qhov kawg ntawm lub rollers yog toothed rau mesh nrog geared rings ntawm txhua kawg ntawm cov txiv ntseej, xyuas kom meej tias cov rollers nyob twj ywm nyob rau hauv zoo meej kev sib raug zoo, parallel mus rau lub axis ntawm cov ntsia hlau. thiab nut.
Cov ntsia hlau ntsia hlau yog ib hom ntsia hlau tsav uas hloov cov khoom siv rov ua dua tshiab nrog cov hlua khi. Qhov kawg ntawm cov rollers yog toothed rau mesh nrog geared rings ntawm txhua qhov kawg ntawm cov txiv ntoo. Rollers ob leeg tig rau ntawm lawv cov axes thiab orbit ncig lub txiv ntoo, nyob rau hauv ib tug planetary configuration. (Qhov no yog vim li cas cov menyuam screws tseem hu ua planetary roller screws.)
Lub geometry ntawm cov menyuam ntsia hlau muab cov ntsiab lus sib txuas ntau dua li qhov ua tau nrog apob ntsia hlau. Qhov no txhais tau hais tias cov menyuam screws feem ntau muaj ntau dua dynamic load peev xwm thiab rigidity dua li qhov loj me me ntawm pob screws. Thiab cov xov zoo (pitch) muab cov khoom siv zoo dua qub, txhais tau hais tias yuav tsum muaj cov khoom siv torque tsawg dua rau cov khoom thauj.
Qhov tseem ceeb tsim kom zoo dua ntawm cov menyuam screws (hauv qab) hla lub pob ntsia hlau (sab saum toj) yog lub peev xwm kom muaj cov ntsiab lus sib txuas ntxiv hauv tib qhov chaw.
Vim tias lawv cov khoom nqa nqa tsis sib cuag, cov ntsia hlau ntsia hlau feem ntau tuaj yeem taug kev ntawm qhov nrawm dua li cov pob ntsia hlau, uas yuav tsum tau cuam tshuam nrog lub zog thiab cua sov tsim los ntawm cov khoom sib tsoo nrog ib leeg thiab nrog lub hau rov qab kawg.
Inverted roller screws
Lub inverted tsim ua haujlwm ntawm tib lub hauv paus ntsiab lus raws li tus qauv rau cov menyuam ntsia hlau, tab sis cov txiv ntoo yog qhov tseem ceeb tig sab hauv-tawm. Li no, lo lus "inverted roller screw." Qhov no txhais tau hais tias cov rollers tig ib ncig ntawm cov ntsia hlau (es tsis yog cov txiv ntoo), thiab cov ntsia hlau yog threaded nkaus xwb nyob rau hauv qhov chaw uas cov chais orbit. Cov txiv ntoo, yog li ntawd, dhau los ua qhov kev txiav txim siab ntev, yog li nws feem ntau ntev dua li cov txiv ntoo ntawm tus qauv rau cov menyuam ntsia hlau. Txawm hais tias cov ntsia hlau lossis cov txiv ntoo tuaj yeem siv rau lub laub qws, tab sis feem ntau cov ntawv thov actuator siv cov ntsia hlau rau lub hom phiaj no.
Manufacturing ntawm ib tug inverted cov menyuam ntsia hlau nthuav qhia cov kev sib tw ntawm kev tsim heev meej internal threads rau cov txiv ntoo ntev ntev, uas txhais tau hais tias ib tug ua ke ntawm machining txoj kev yog siv. Qhov tshwm sim yog tias cov xov yog softer, thiab yog li ntawd, qhov load ratings ntawm inverted roller screws yog qis dua rau tus qauv rau cov menyuam screws. Tab sis inverted screws muaj txiaj ntsig ntawm kev ua kom ntau dua.
Post lub sij hawm: Oct-27-2023
