E le mokhoa oa ho fetisa, lisebelisoa tsa lipolanete li sebelisoa haholo mekhoeng e sa tšoaneng ea boenjiniere, e kang ea gear reducer, crane, planetary gear reducer, joalo-joalo Bakeng sa ho fokotsa lisebelisoa tsa polanete, e ka nka sebaka sa mochine oa phetisetso oa terene ea li-axle tse tsitsitseng maemong a mangata. Hobane ts'ebetso ea phetisetso ea gear ke khokahano ea mohala, meshing ea nako e telele e tla baka ho hloleha ha gear, ka hona hoa hlokahala ho etsisa matla a eona. Li Hongli et al. o sebelisitse mokhoa oa othomathike oa meshing ho kopanya lisebelisoa tsa polanete, mme a fumana hore torque le khatello e phahameng ea khatello ea maikutlo li lekana. Wang Yanjun et al. e ile ea boela ea kopanya lisebelisoa tsa polanete ka mokhoa oa ho iketsetsa, le ho etsisa statics le modal ketsiso ea lisebelisoa tsa polanete. Ka pampiri ena, likarolo tsa tetrahedron le hexahedron li sebelisoa haholo ho arola letlooeng, 'me liphello tsa ho qetela li hlahlojoa ho bona hore na maemo a matla a finyelloa.

1. Ho theha mohlala le tlhahlobo ea sephetho

Mehlala e meraro ea lisebelisoa tsa polanete

Lisebelisoa tsa lipolanetehaholo-holo e entsoe ka lisebelisoa tsa selikalikoe, lisebelisoa tsa letsatsi le lisebelisoa tsa lipolanete. Lintlha tse ka sehloohong tse khethiloeng pampiring ena ke: palo ea meno a selikalikoe sa ka hare ke 66, palo ea meno a lisebelisoa tsa letsatsi ke 36, palo ea meno a gear ea polanete ke 15, bophara ba ka ntle ba gear e ka hare. selikalikoe ke 150 mm, modulus ke 2 mm, sekhahla sa khatello ke 20 °, bophara ba leino ke 20 mm, coefficient ea bophahamo ba addendum ke 1, coefficient ea backlash ke 0.25, 'me ho na le likere tse tharo tsa polanete.

Ketsiso e tsitsitseng ea lisebelisoa tsa lipolanete

Hlalosa thepa ea thepa: kenya lisebelisoa tsa lipolanete tse mahlakore a mararo tse huleloang ka har'a software ea UG ho ANSYS, 'me u behe liparamente tsa thepa, joalo ka ha ho bonts'itsoe ho Lethathamo la 1 ka tlase:

Meshing: The finite element mesh e arotsoe ke tetrahedron le hexahedron, 'me boholo ba motheo ba element ke 5mm. Ho tloha kalisebelisoa tsa lipolanete, lisebelisoa tsa letsatsi le selikalikoe sa ka hare li kopane le letlooeng, letlooeng la likarolo le likarolo tsa marang-rang li fokotsehile, 'me boholo ke 2mm. Ntlha ea pele, li-grids tsa tetrahedral li sebelisoa, joalokaha ho bontšoa ho Setšoantšo sa 1. Lintho tsa 105906 le li-node tsa 177893 li hlahisoa ka kakaretso. Joale hexahedral grid e amoheloa, joalokaha ho bontšoa ho Setšoantšo sa 2, 'me lisele tse 26957 le li-node tsa 140560 li hlahisoa ka kakaretso.

Kopo ea mojaro le maemo a moeli: ho ea ka litšobotsi tsa ts'ebetso ea lisebelisoa tsa polanete ho se fokotsang, lisebelisoa tsa letsatsi ke lisebelisoa tsa ho khanna, lisebelisoa tsa polanete ke lisebelisoa tse khannoang, 'me tlhahiso ea ho qetela ke ka mochine oa lipolanete. Lokisa reng ea ka hare ea gear ho ANSYS, 'me u sebelise torque ea 500N · m ho lisebelisoa tsa letsatsi, joalokaha ho bontšitsoe setšoantšong sa 3.

Ts'ebetso ea poso le tlhahlobo ea sephetho: Nephogram ea phalliso le nephogram e lekanang ea khatello ea maikutlo ea tlhahlobo e tsitsitseng e fumanoeng likarolong tse peli tsa marang-rang li fanoe ka tlase, 'me tlhahlobo ea papiso e etsoa. Ho tloha ho nephogram ea ho falla ea mefuta e 'meli ea marang-rang, ho fumanoa hore phallo e phahameng ka ho fetisisa e etsahala sebakeng seo mocheso oa letsatsi o sa kopaneng le lisebelisoa tsa polanete,' me khatello e phahameng ea khatello e etsahala motso oa mesh ea gear. Khatello e kholo ea marang-rang ea tetrahedral ke 378MPa, 'me khatello e kholo ea marang-rang ea hexahedral ke 412MPa. Kaha moeli oa lihlahisoa ke 785MPa mme ntlha ea polokeho ke 1.5, khatello e lumelletsoeng ke 523MPa. Khatello e phahameng ea liphetho ka bobeli e tlase ho feta khatello e lumelletsoeng, 'me ka bobeli li kopana le maemo a matla.

2, Qetello

Ka papiso e lekantsoeng ea lisebelisoa tsa polanete, deformation deformation nephogram le nephogram e lekanang ea khatello ea sistimi ea gear e fumanoa, eo ho eona ho fumanoang lintlha tse phahameng le tse fokolang le kabo ea tsona.lisebelisoa tsa lipolanetemohlala o ka fumanoa. Sebaka sa khatello ea maikutlo e lekanang le eona ke sebaka seo meno a gear a ka 'nang a hlōleha ho se etsa, ka hona, tlhokomelo e khethehileng e lokela ho lefshoa ho eona nakong ea moralo kapa tlhahiso. Ka tlhahlobo ea tsamaiso eohle ea lisebelisoa tsa lipolanete, phoso e bakoang ke tlhahlobo ea leino le le leng feela la gear e hlōloa.