Senzira yekutumira, magiya epuraneti anoshandiswa zvakanyanya mumabasa akasiyana-siyana einjiniya, akadai sereducer gear, crane, planetary gear reducer, nezvimwewo. Kune planetary gear reducer, inogona kutsiva nzira yekutumira yechitima chegiya rakagadzika muzviitiko zvakawanda. Nekuti nzira yekutumira magiya inobatana nemutsara, meshing yenguva refu inokonzera kutadza kwegiya, saka zvakakosha kutevedzera simba rayo. Li Hongli nevamwe vake vakashandisa nzira ye otomatiki meshing kuti vabatanidze giya repuraneti, uye vakawana kuti torque nekumanikidzwa kwakanyanya kuri linear. Wang Yanjun nevamwe vake vakabatanidzawo magiya epuraneti kuburikidza nenzira yekugadzira otomatiki, uye vakatevedzera statics uye modal simulation yegiya repuraneti. Mupepa rino, tetrahedron uye hexahedron elements zvinonyanya kushandiswa kupatsanura mesh, uye mhedzisiro yekupedzisira inoongororwa kuti ione kana mamiriro esimba akasangana.

1, Kugadzwa kwemuenzaniso uye kuongorora mhedzisiro

Kutevedzera michina yemapuraneti nenzira nhatu

Zvishandiso zvepasiZvikuru zvinoumbwa ne ring gear, sun gear uye planetary gear. Ma parameter makuru akasarudzwa mupepa rino ndeaya: huwandu hwemazino e ring yemukati yegiya i66, huwandu hwemazino e sun gear i36, huwandu hwemazino e planetary gear i15, dhayamita yekunze ye inner gear ring i150 mm, modulus i2 mm, pressure angle i20 °, hupamhi hwezino i20 mm, addendum height coefficient i1, backlash coefficient i0.25, uye kune matatu planetary gears.

Kuongororwa kwemhando yepamusoro yemidziyo yemapuraneti

Tsanangura hunhu hwezvinhu: pinza sisitimu yemagiya epuraneti ane mativi matatu akatorwa musoftware yeUG muANSYS, uye isa maparamita ezvinhu, sezvakaratidzwa muTafura 1 pazasi:

Meshing: Mesh yechinhu chakaganhurwa ne tetrahedron ne hexahedron, uye saizi yekutanga yechinhu i5mm. Sezvozvishandiso zvepuraneti, giya rezuva neringi remukati regiya zviri mukubatana uye mesh, mesh yezvikamu zvekubatana uye mesh yakamanikana, uye saizi yacho i2mm. Kutanga, magridhi etetrahedral anoshandiswa, sezvakaratidzwa muMufananidzo 1. Zvinhu 105906 uye manode 177893 zvinogadzirwa zvese. Zvadaro grid yehexahedral inotorwa, sezvakaratidzwa muMufananidzo 2, uye masero 26957 uye manode 140560 anogadzirwa zvese.

Kushandiswa kwemutoro nemamiriro emuganhu: zvichienderana nehunhu hwemagiya epuraneti ari mudhiraivha, giya rezuva ndiro giya rekutyaira, giya repuraneti ndiro giya rinofambiswa, uye chinobuda chekupedzisira chinobva kuburikidza negedhi repuraneti. Gadzirisa rin'i yegiya remukati muANSYS, uye isa torque ye500N · m kugiya rezuva, sezvakaratidzwa muMufananidzo 3.

Mushure mekugadzirisa uye ongororo yemhedzisiro: Displacement nephogram uye equivalent stress nephogram ye static analysis inowanikwa kubva ku grid divisions mbiri dziri pazasi, uye kuenzanisa ongororo kunoitwa. Kubva ku displacement nephogram yemarudzi maviri emagrid, zvinowanikwa kuti maximum displacement inoitika panzvimbo iyo sun gear isingasanganisike ne planetary gear, uye maximum stress inoitika pamudzi we gear mesh. Maximum stress ye tetrahedral grid i378MPa, uye maximum stress ye hexahedral grid i412MPa. Sezvo goho rezvinhu zviri 785MPa uye safety factor iri 1.5, maximum stress i523MPa. Maximum stress yemhedzisiro yese iri pasi pe maximum stress inobvumirwa, uye yese inosangana nemamiriro esimba.

2, Mhedziso

Kuburikidza nemuenzaniso we finite element we planetary gear, displacement deformation nephogram uye equivalent stress nephogram ye gear system inowanikwa, umo data repamusoro nerepasi uye kugoverwa kwaro muzvishandiso zvepuranetimodhi inogona kuwanikwa. Nzvimbo ine simba rakaenzana ndiyo nzvimbo iyo mazino egiya anogona kukundikana, saka kutarisisa kwakakosha kunofanira kupihwa pairi panguva yekugadzira kana kugadzira. Kuburikidza nekuongorora sisitimu yese yegiya repasi, kukanganisa kunokonzerwa nekuongorora zino rimwe chete regiya kunokundwa.