Ma ke ʻano he mīkini hoʻoili, hoʻohana nui ʻia ka mīkini planetary i nā hana ʻenekinia like ʻole, e like me ka mea hoʻemi mīkini, crane, mea hoʻemi mīkini planetary, a pēlā aku. No ka mea hoʻemi mīkini planetary, hiki iā ia ke pani i ka mīkini hoʻoili o ke kaʻina hana axle paʻa i nā hihia he nui. No ka mea ʻo ke kaʻina hana o ka hoʻoili mīkini he pilina laina, ʻo ka meshing lōʻihi e hana ai i ka hāʻule ʻana o ke mīkini, no laila pono e hoʻohālike i kona ikaika. Ua hoʻohana ʻo Li Hongli et al. i ke ʻano meshing aunoa e hoʻopili i ke mīkini planetary, a ua loaʻa iā ia ka torque a me ke kaumaha kiʻekiʻe loa he linear. Ua hoʻopili pū ʻo Wang Yanjun et al. i ke mīkini planetary ma o ke ʻano hana hana aunoa, a hoʻohālike i ka statics a me ka modal simulation o ke mīkini planetary. Ma kēia pepa, hoʻohana nui ʻia nā mea tetrahedron a me hexahedron e hoʻokaʻawale i ka mesh, a ua kālailai ʻia nā hopena hope loa e ʻike inā ua hoʻokō ʻia nā kūlana ikaika.

1. Hoʻokumu ʻana i ke kumu hoʻohālike a me ka nānā ʻana i nā hopena

Hoʻohālikelike ʻekolu-dimensional o nā mea hana honua

Nā mea hana honuaʻO ke kumu nui o ia mea he apo lima, he apo lā, a he apo honua. ʻO nā ʻano nui i koho ʻia ma kēia pepa: ʻo ka helu o nā niho o ke apo o loko he 66, ʻo ka helu o nā niho o ke apo lā he 36, ʻo ka helu o nā niho o ke apo honua he 15, ʻo ke anawaena o waho o ke apo o loko he 150 mm, ʻo ka modulus he 2 mm, ʻo ke kihi kaomi he 20 °, ʻo ka laulā o ka niho he 20 mm, ʻo ke koina kiʻekiʻe addendum he 1, ʻo ke koina backlash he 0.25, a he ʻekolu mau apo honua.

Ka loiloi hoʻohālike static o nā mea hana honua

E wehewehe i nā waiwai o nā mea: e hoʻokomo i ka ʻōnaehana kia honua ʻekolu-dimensional i kaha ʻia ma ka polokalamu UG i loko o ANSYS, a hoʻonohonoho i nā palena o nā mea, e like me ka mea i hōʻike ʻia ma ka Papa 1 ma lalo nei:

Meshing: Ua māhele ʻia ka mesh element finite e ka tetrahedron a me ka hexahedron, a ʻo ka nui kumu o ka element he 5mm. Mai ka wāmea hana honua, aia ka mīkini lā a me ke apo mīkini o loko i ka pilina a me ka mesh, ua hoʻopaʻa ʻia ka mesh o nā ʻāpana pili a me ka mesh, a ʻo ka nui he 2mm. ʻO ka mea mua, hoʻohana ʻia nā grids tetrahedral, e like me ka mea i hōʻike ʻia ma ke Kiʻi 1. Hoʻokumu ʻia he 105906 mau mea a me 177893 mau node i ka huina. A laila ua hoʻohana ʻia ka grid hexahedral, e like me ka mea i hōʻike ʻia ma ke Kiʻi 2, a hoʻokumu ʻia he 26957 mau cell a me 140560 mau node i ka huina.

ʻO ke kau ʻana o ka ukana a me nā kūlana palena: e like me nā ʻano hana o ka mīkini planetary i loko o ka reducer, ʻo ka mīkini lā ka mīkini hoʻokele, ʻo ka mīkini planetary ka mīkini hoʻokele, a ʻo ka hopena hope loa ma o ka mea lawe planetary. E hoʻopaʻa i ke apo mīkini kūloko ma ANSYS, a hoʻopili i kahi torque o 500N · m i ka mīkini lā, e like me ka mea i hōʻike ʻia ma ke Kiʻi 3.

Ka hana ʻana ma hope a me ka loiloi hopena: Hāʻawi ʻia ka nephogram neʻe ʻana a me ka nephogram stress like o ka loiloi static i loaʻa mai nā mahele grid ʻelua ma lalo nei, a ua hana ʻia ka loiloi hoʻohālikelike. Mai ka nephogram neʻe ʻana o nā ʻano grids ʻelua, ua ʻike ʻia ʻo ka neʻe ʻana kiʻekiʻe loa e kū mai ana ma ke kūlana kahi i hui ʻole ai ka mīkini lā me ka mīkini planetary, a ʻo ke kaumaha kiʻekiʻe loa e kū mai ana ma ke kumu o ka mesh gear. ʻO ke kaumaha kiʻekiʻe loa o ka grid tetrahedral he 378MPa, a ʻo ke kaumaha kiʻekiʻe loa o ka grid hexahedral he 412MPa. ʻOiai ʻo ka palena hua o ka mea he 785MPa a ʻo ka mea palekana he 1.5, ʻo ke kaumaha i ʻae ʻia he 523MPa. ʻOi aku ka liʻiliʻi o ke kaumaha o nā hopena ʻelua ma mua o ke kaumaha i ʻae ʻia, a ua hoʻokō nā mea ʻelua i nā kūlana ikaika.

2. Hopena

Ma o ka simulation element finite o ka planetary gear, loaʻa ka nephogram deformation displacement a me ka nephogram stress like o ka ʻōnaehana gear, kahi e loaʻa ai ka ʻikepili kiʻekiʻe a me ka liʻiliʻi a me kā lākou hoʻolaha ʻana i loko o kamea hana honuahiki ke loaʻa ke kumu hoʻohālike. ʻO kahi o ke kaumaha like kiʻekiʻe loa kahi e hāʻule ai nā niho kia, no laila pono e uku ʻia ka nānā kūikawā iā ia i ka wā hoʻolālā a hana paha. Ma o ka nānā ʻana i ka ʻōnaehana holoʻokoʻa o ka kia honua, ua lanakila ʻia ka hewa i hoʻokumu ʻia e ka nānā ʻana o hoʻokahi niho kia wale nō.