Ukushisa kwefrikhwensi yamandla ukuhlanganisa okushisayo nokuthulula okushisayo kwendandatho yangaphakathi ethwele

Indandatho yangaphakathi ye-bearing inemikhono ku-shaft, futhi indandatho yangaphakathi kanye ne-shaft ihlanganiswe ndawonye ngokufaka ukuphazamiseka kwe-shaft emgodini. Indandatho yangaphakathi iyanda ngemva kokushisa, ukuze ibekwe kalula ku-shaft. Ngemuva kokupholisa, i-shaft iyaqiniswa. Ngemva kwesikhathi esithile sokusetshenziswa, iringi yangaphakathi iyaguga futhi idinga ukushintshwa. Esikhathini esidlule, i-draller yayisetshenziselwa ukudonsa indandatho yangaphakathi kusuka ku-shaft, eyayizocindezela ubuso be-shaft. Uma indandatho yangaphakathi ku-shaft ingashiswa ngokushesha, ububanzi be-shaft ngeke bukhule noma bube bukhulu kakhulu ngenxa yokwandiswa kwendandatho yangaphakathi. Ngokukhula okuncane, indandatho yangaphakathi ingasuswa ku-shaft. Lokhu okubizwa ngokuthi yi-thermal unloading. Ubuso be-shaft ngeke bucindezelwe, futhi bungasetshenziswa kabusha ngaphandle kokulungiswa.

Indandatho yangaphakathi ethwele ama-ekseli wesitimela iboniswa kuMfanekiso 12-62. Iqukethe izindandatho ezimbili, ezifakwe ngayinye ngayinye lapho i-shaft ifakiwe, futhi izindandatho ezimbili zikhishwa ngesikhathi esifanayo lapho zikhishwa ku-shaft. Ubuningi bamasongo amabili angaphakathi bungu-3.54kg no-2.77kg ngokulandelana, futhi izinga lokushisa lokufudumala lokulayisha okushisayo nokushisa liyadingeka ukuthi libe ngu-130Y.

Iringi yangaphakathi ye-bearing ingafakwa ngokushisa ku-shaft inqobo nje uma izinga lokushisa lokushisa lifinyelela ku-130°C. Ngokuqondene nobude besikhathi sokushisa

Umfanekiso 12-62 Ukuthwala indandatho yangaphakathi

Akunandaba okuningi, kodwa ukususa indandatho yangaphakathi ethwele kusukela ku-shaft thermally, ubude besikhathi ngokushisa kwe-induction ye-frequency yamandla kubaluleke kakhulu. Uma isikhathi sokushisa side, i-shaft nayo izoshisa, futhi kuyoba nzima ukususa indandatho yangaphakathi yokuthwala. Umfanekiso 12-63 ubonisa ubudlelwano phakathi kokuthwala ububanzi bangaphakathi kanye nesikhathi sokushisa sokungeniswa, esingasetshenziswa njengereferensi yokukhetha isikhathi sokushisa sokungeniswa phakathi nezibalo zokuklama.

Umfanekiso 12-63 Isikhathi sokushisa sokukhipha iringi yangaphakathi ngokushisayo

Umfanekiso 12-64 ubonisa imishini yokushisa yokungenisa imvamisa yamandla yokulayisha okushisayo nokushisa okuthulula okushisayo kwendandatho yangaphakathi ethwele. Uhlangothi lwesobunxele lwesibalo luyi-inductor yefrikhwensi yamandla, kanti uhlangothi lwesokudla yikhabhinethi yokulawula kagesi. Ikhoyili ye-inductor yefrikhwensi yamandla yenziwe ngentambo yethusi emsulwa engu-3.28mm X 8.6mm. Ububanzi bangaphakathi bekhoyili bungama-74mm. Ngaphandle kwekhoyili, kunamasethi angu-12 amakhondatha kazibuthe agqitshwe ngamashidi ensimbi ye-silicon. Iziphetho ezimbili ziboshwe ngamapuleti ensimbi futhi zihlanganiswe esihlalweni. Isihlalo sifakwe ama-roller angu-4 ukususa iringi yangaphakathi ku-shaft ngesikhathi sokukhipha ukushisa. Ikhabhinethi yokulawula kagesi ifakwe izibani zenkomba, ukudluliselwa kwesikhathi kanye ne-AC contactor, njll., esetshenziselwa ukulawula isikhathi sokuvula nokuvala amandla se-inductor. Uma i-inductor yefrikhwensi yamandla isebenza, i-voltage ingu-380V, yamanje ingu-88A, namandla angu-21kW. Iringi yangaphakathi ephethe ingashiswa ama-30s kuya ku-130Y, futhi iringi yangaphakathi ephethe ingasuswa ku-shaft.