Njengendlela yokudlulisa, igiya leplanethi lisetshenziswa kabanzi emikhubeni eyahlukene yobunjiniyela, njenge-gear reducer, i-crane, i-planetary gear reducer, njll. Ku-planetary gear reducer, ingathatha indawo ye-transmission mechanism ye-fixed axle gear train ezimweni eziningi. Ngenxa yokuthi inqubo yokudlulisa igiya iwukuxhumana komugqa, i-meshing ende izobangela ukwehluleka kwegiya, ngakho-ke kuyadingeka ukulingisa amandla ayo. ULi Hongli nabanye basebenzise indlela ye-othomathikhi ye-meshing ukuze bahlanganise igiya leplanethi, futhi bathola ukuthi i-torque kanye nokucindezeleka okuphezulu kuqondile. UWang Yanjun nabanye baphinde bahlanganisa igiya leplanethi ngendlela yokukhiqiza okuzenzakalelayo, futhi balingisa i-statics kanye ne-modal simulation yegiya leplanethi. Kuleli phepha, izakhi ze-tetrahedron kanye ne-hexahedron zisetshenziswa kakhulu ukuhlukanisa i-mesh, futhi imiphumela yokugcina iyahlaziywa ukuze kubonwe ukuthi izimo zamandla ziyahlangatshezwana yini.

1, Ukusungulwa kwemodeli kanye nokuhlaziywa kwemiphumela

Ukumodela okunezinhlangothi ezintathu kwegiya leplanethi

Imishini yeplanethiikakhulukazi yakhiwe ngegiya lendandatho, igiya lelanga kanye negiya leplanethi. Amapharamitha ayinhloko akhethiwe kuleli phepha yile: inani lamazinyo endandatho yegiya langaphakathi lingu-66, inani lamazinyo egiya lelanga lingu-36, inani lamazinyo egiya leplanethi lingu-15, ububanzi bangaphandle bendandatho yegiya langaphakathi lingu-150 mm, i-modulus ingu-2 mm, i-engeli yokucindezela ingu-20 °, ububanzi bezinyo bungu-20 mm, i-addendum height coefficient ingu-1, i-backlash coefficient ingu-0.25, futhi kunegiya ezintathu zeplanethi.

Ukuhlaziywa kokulingisa okuqinile kwegiya leplanethi

Chaza izakhiwo zezinto ezibonakalayo: ngenisa uhlelo lwegiya leplanethi olunezinhlangothi ezintathu oludwetshwe kusofthiwe ye-UG ku-ANSYS, bese usetha amapharamitha ezinto ezibonakalayo, njengoba kuboniswe kuThebula 1 ngezansi:

Ukugoqa: I-finite element mesh ihlukaniswe yi-tetrahedron kanye ne-hexahedron, kanti ubukhulu obuyisisekelo be-element buyi-5mm. Njengobaigiya leplanethi, igiya lelanga kanye nendandatho yegiya langaphakathi kuxhumene futhi kune-mesh, i-mesh yezingxenye zokuthintana neze-mesh ixinene, futhi usayizi uyi-2mm. Okokuqala, kusetshenziswa amagridi e-tetrahedral, njengoba kuboniswe kuMfanekiso 1. Izinto ezingu-105906 kanye nama-node angu-177893 kukhiqizwa sekukonke. Ngemuva kwalokho kusetshenziswa igridi ye-hexahedral, njengoba kuboniswe kuMfanekiso 2, futhi amaseli angu-26957 kanye nama-node angu-140560 kukhiqizwa sekukonke.

Ukusetshenziswa komthwalo kanye nezimo zomngcele: ngokwezici zokusebenza kwegiya leplanethi ku-reducer, igiya lelanga liyigiya lokushayela, igiya leplanethi liyigiya eliqhutshwayo, kanti umphumela wokugcina udlula ku-planetary carrier. Lungisa indandatho yegiya langaphakathi ku-ANSYS, bese usebenzisa i-torque engu-500N · m kugiya lelanga, njengoba kuboniswe kuMfanekiso 3.

Ukuhlaziywa kwemiphumela ngemuva kokucutshungulwa: I-displacement nephogram kanye ne-equivalent stress nephogram yokuhlaziywa kwe-static okutholwe ezigabeni ezimbili zegridi kunikezwe ngezansi, futhi kwenziwa ukuhlaziywa kokuqhathanisa. Kusukela ku-displacement nephogram yezinhlobo ezimbili zamagridi, kutholakala ukuthi ukuhanjiswa okuphezulu kwenzeka endaweni lapho igiya lelanga lingahlanganisi khona negiya leplanethi, kanti ukucindezeleka okuphezulu kwenzeka empandeni yegiya. Ukucindezeleka okuphezulu kwegridi ye-tetrahedral kungu-378MPa, kanti ukucindezeleka okuphezulu kwegridi ye-hexahedral kungu-412MPa. Njengoba umkhawulo wenzuzo yezinto ezibonakalayo ungu-785MPa kanti isici sokuphepha singu-1.5, ukucindezeleka okuvunyelwe kungu-523MPa. Ukucindezeleka okuphezulu kwemiphumela yomibili kungaphansi kokucindezeleka okuvunyelwe, futhi kokubili kuhlangabezana nezimo zamandla.

2, Isiphetho

Ngokusebenzisa ukulingiswa kwe-finite element yegiya leplanethi, kutholakala i-displacement deformation nephogram kanye ne-equivalent stress nephogram yesistimu yegiya, lapho kutholakala khona idatha ephezulu nephansi kanye nokusatshalaliswa kwayo ku-igiya leplanethiimodeli ingatholakala. Indawo yokucindezeleka okulingana okuphezulu futhi yindawo lapho amazinyo egiya engase ahluleke khona, ngakho-ke kufanele kunakwe ngokukhethekile ngesikhathi sokuklama noma ukukhiqizwa. Ngokuhlaziywa kohlelo lonke lwegiya leplanethi, iphutha elibangelwa ukuhlaziywa kwezinyo elilodwa legiya liyanqotshwa.