Njengendlela yokudlulisa, izixhobo zeplanethi zisetyenziswa kakhulu kwiindlela ezahlukeneyo zobunjineli, ezifana ne-gear reducer, i-crane, i-planetary gear reducer, njl. Kwi-planetary gear reducer, ingathatha indawo yendlela yokudlulisa ye-fixed axle gear train kwiimeko ezininzi. Ngenxa yokuba inkqubo yokudlulisa izixhobo idibana nomgca, i-meshing yexesha elide iya kubangela ukungaphumeleli kwezixhobo, ngoko ke kuyimfuneko ukulinganisa amandla ayo. ULi Hongli nabanye basebenzise indlela ye-automatic meshing ukuhlanganisa izixhobo zeplanethi, kwaye bafumana ukuba i-torque kunye noxinzelelo oluphezulu zi-linear. UWang Yanjun nabanye baphinde badibanisa izixhobo zeplanethi ngendlela yokuvelisa ngokuzenzekelayo, kwaye balinganisa i-statics kunye ne-modal simulation yezixhobo zeplanethi. Kule phepha, izinto ze-tetrahedron kunye ne-hexahedron zisetyenziswa kakhulu ukwahlula i-mesh, kwaye iziphumo zokugqibela ziyahlalutywa ukuze kubonwe ukuba iimeko zamandla ziyafezekiswa na.

1, Ukusekwa kweModeli kunye nohlalutyo lweziphumo

Imodeli yezixhobo zeplanethi enamacala amathathu

Izixhobo zeplanethiIkakhulu yenziwe ngezixhobo zeringi, izixhobo zelanga kunye nezixhobo zeplanethi. Iiparameter eziphambili ezikhethiweyo kweli phepha zezi: inani lamazinyo eringi yegiya yangaphakathi yi-66, inani lamazinyo egiya yelanga yi-36, inani lamazinyo egiya yeplanethi yi-15, ububanzi bangaphandle beringi yegiya yangaphakathi yi-150 mm, imodulus yi-2 mm, i-engile yoxinzelelo yi-20 °, ububanzi bamazinyo yi-20 mm, i-coefficient yokuphakama eyongezelelweyo yi-1, i-coefficient ye-backlash yi-0.25, kwaye kukho izixhobo ezintathu zeplanethi.

Uhlalutyo lokulinganisa oluzinzileyo lwezixhobo zeplanethi

Chaza iipropati zezinto: ngenisa inkqubo yegiya yeplanethi enamacala amathathu edwetshwe kwisoftware ye-UG kwi-ANSYS, kwaye usete iiparameter zezinto, njengoko kubonisiwe kwiTheyibhile 1 ngezantsi:

I-Meshing: I-finite element mesh yahlulwe yi-tetrahedron kunye ne-hexahedron, kwaye ubukhulu obusisiseko be-element yi-5mm. Ekubeniizixhobo zeplanethi, igiya yelanga kunye neringi yegiya yangaphakathi zidibene kwaye zine-mesh, i-mesh yeendawo zoqhagamshelwano kunye ne-mesh ixinene, kwaye ubukhulu yi-2mm. Okokuqala, kusetyenziswa iigridi ze-tetrahedral, njengoko kubonisiwe kuMfanekiso 1. Izinto ezili-105906 kunye nama-node ayi-177893 ziyaveliswa zizonke. Emva koko igridi ye-hexahedral iyamkelwa, njengoko kubonisiwe kuMfanekiso 2, kwaye iiseli ezingama-26957 kunye nama-node ayi-140560 ziyaveliswa zizonke.

Ukusetyenziswa komthwalo kunye neemeko zomda: ngokweempawu zokusebenza kwegiya yeplanethi kwi-reducer, igiya yelanga yigiya yokuqhuba, igiya yeplanethi yigiya eqhutywayo, kwaye umphumo wokugqibela udlula kwi-planetary carrier. Lungisa iringi yegiya yangaphakathi kwi-ANSYS, kwaye ufake i-torque ye-500N · m kwigiya yelanga, njengoko kubonisiwe kuMfanekiso 3.

Uhlalutyo lweziphumo emva kokucubungula kunye neziphumo: I-displacement nephogram kunye ne-equivalent stress nephogram yohlalutyo oluzinzileyo olufunyenwe kwiindidi ezimbini zegridi zinikwe ngezantsi, kwaye kwenziwa uhlalutyo oluthelekisayo. Kwi-displacement nephogram yeentlobo ezimbini zegridi, kufunyaniswe ukuba i-maximum displacement yenzeka kwindawo apho i-sun gear ingadibani ne-planetary gear, kwaye i-maximum stress yenzeka kwingcambu ye-gear mesh. I-maximum stress ye-tetrahedral grid yi-378MPa, kwaye i-maximum stress ye-hexahedral grid yi-412MPa. Ekubeni umda we-yield wezinto yi-785MPa kwaye i-safety factor yi-1.5, i-maximum stress yi-523MPa. I-maximum stress yeziphumo zombini ingaphantsi kwe-maximum stress, kwaye zombini zihlangabezana neemeko zamandla.

2, Isiphelo

Ngokusebenzisa ukulinganisa izinto ezilinganiselweyo zegiya yeplanethi, i-nephogram yokuguquguquka kokuhamba kunye ne-nephogram yoxinzelelo olulinganayo lwenkqubo yegiya kufunyanwa, apho idatha ephezulu kunye neyona incinci kunye nokusasazwa kwayo kwiizixhobo zeplanethiimodeli ingafumaneka. Indawo apho amazinyo egiya anamandla okusebenza khona ikwayindawo apho amazinyo egiya anokungasebenzi khona, ngoko ke kufuneka kunikwe ingqalelo ekhethekileyo kuyo ngexesha loyilo okanye ukwenziwa kwayo. Ngokuhlalutya yonke inkqubo yegiya yeplanethi, impazamo ebangelwe kuhlalutyo lwezinyo legiya elinye kuphela iyasoyiswa.