1. Umonakalo we-slewing bear

Emishinini eyahlukene yokwakha efana nama-cranes wamaloli kanye nabavubukuli, indandatho yokubulala iyingxenye ebalulekile edlulisa umthwalo we-axial, umthwalo we-radial kanye nomzuzu wokugoba phakathi kwe-turntable kanye ne-chassis.

Ezimweni zomthwalo omncane, ingasebenza ngokujwayelekile futhi ijikeleze ngokukhululeka.Kodwa-ke, lapho umthwalo unzima, ikakhulukazi kumthamo omkhulu wokuphakamisa kanye nobubanzi obukhulu, kunzima ukuthi into esindayo ijikeleze, noma ingakwazi ngisho nokujikeleza nhlobo, ukuze ibambelele.Ngalesi sikhathi, izindlela ezinjengokunciphisa ububanzi, ukulungisa ama-outriggers, noma ukuhambisa indawo ye-chassis ngokuvamile zisetshenziselwa ukutshekisa umzimba ukusiza ukubona ukunyakaza okujikelezayo kwento esindayo nokuqedela ukuphakamisa okuhleliwe kanye neminye imisebenzi.Ngakho-ke, ngesikhathi somsebenzi wokulungisa, kuvame ukutholakala ukuthi umjaho we-slewing bear wonakaliswe kakhulu, futhi imifantu ye-annular eduze komgwaqo ikhiqizwa ezinhlangothini zombili zomjaho wangaphakathi kanye nomgwaqo ophansi ophambi kwendawo yokusebenza. endaweni, okubangela umjaho ongaphezulu womjaho ukuba ucindezeleke endaweni ecindezeleke kakhulu., futhi akhiqize imifantu emisebe kulo lonke ukucindezeleka.

2. Ingxoxo ngezimbangela zokulimala kwama-slewing bearings

(1) Umthelela wesici sokuphepha I-slewing bear ivame ukusebenza ngaphansi kwesimo sejubane eliphansi kanye nomthwalo osindayo, futhi umthamo wayo wokuthwala ungaboniswa ngokujwayelekile ngomthamo omile, futhi umthamo omile olinganiselwe urekhodwa njenge-C0 a.Okubizwa ngokuthi umthamo omile ubhekisela kumthamo wokuthwala webheringi lapho ukuguga unomphela komgwaqo δ kufinyelela ku-3d0/10000, futhi u-d0 uwububanzi besici esiginqikayo.Inhlanganisela yemithwalo yangaphandle ngokuvamile imelelwa umthwalo olinganayo we-Cd.Isilinganiso somthamo omile kumthwalo olinganayo sibizwa ngokuthi isici sokuphepha, esichazwa ngokuthi u-fs, okuyisisekelo esiyinhloko sokuklama nokukhethwa kwama-slewing bearings.

Lapho indlela yokuhlola ukucindezeleka okukhulu kokuxhumana phakathi kwe-roller kanye nomzila womjaho isetshenziselwa ukuklama i-slewing bear, ukucindezeleka kokuxhumana komugqa [σk line] = 2.0 ~ 2.5 × 102 kN / cm isetshenziswa.Njengamanje, abakhiqizi abaningi bakhetha futhi babale uhlobo lwe-slewing bear ngokusho kobukhulu bomthwalo wangaphandle.Ngokolwazi olukhona, ingcindezi yokuxhumana ye-slewing bear ye-crane encane ye-tonnage incane kunaleyo ye-crane enkulu yamathani okwamanje, futhi isici sangempela sokuphepha siphezulu.Ubukhulu be-tonnage ye-crane, ubukhulu be-diameter ye-slewing bear, iyancipha ukunemba kokukhiqiza, kanye nesici sokuphepha esiphansi.Lesi yisizathu esibalulekile esenza kube lula ukulimaza i-slewing crane yethani elikhulu kune-slewing bear ye-crane encane yamathani.Njengamanje, ngokuvamile kukholakala ukuthi ukucindezelwa kokuxhumana komugqa we-slewing bear ye-crane engaphezu kuka-40 t akufanele kudlule u-2.0×102 kN/cm, futhi isici sokuphepha akufanele sibe ngaphansi kuka-1.10.

(2) Umthelela wokuqina kwesakhiwo se-turntable

I-slewing ring iyingxenye ebalulekile edlulisela imithwalo ehlukahlukene phakathi kwe-turntable kanye ne-chassis.Ukuqina kwayo akukukhulu, futhi kuncike kakhulu ekuqineni kwesakhiwo se-chassis kanye ne-turntable eyisekelayo.Uma sikhuluma, ukwakheka okuhle kwe-turntable kuyisimo se-cylindrical esinokuqina okuphezulu, ukuze umthwalo ku-turntable ungasakazwa ngokulinganayo, kodwa akunakwenzeka ukufeza ngenxa yomkhawulo wokuphakama kwawo wonke umshini.Imiphumela yokuhlaziywa kwezinto ezinomkhawulo we-turntable ibonisa ukuthi ukuwohloka kwepuleti elingaphansi elixhunywe ku-turntable kanye ne-slewing bear kukhulu uma kuqhathaniswa, futhi kubi nakakhulu ngaphansi kwesimo somthwalo omkhulu wengxenye, obangela ukuthi umthwalo ugxile ku- ingxenye encane yama-roller, ngaleyo ndlela ikhulise umthwalo we-roller eyodwa.Ingcindezi eyatholwa;ikakhulukazi engathi sína ukuthi ukuguqulwa kwesakhiwo se-turntable kuzoshintsha isimo sokuxhumana phakathi kwe-roller nomgwaqo womjaho, ukunciphisa kakhulu ubude bokuxhumana futhi kubangele ukwanda okukhulu kokucindezeleka kokuxhumana.Kodwa-ke, izindlela zokubala zokucindezeleka kokuxhumana kanye nomthamo omile osetshenziswa kabanzi okwamanje zisekelwe esimisweni sokuthi i-slewing bear igcizelelwe ngokulinganayo futhi ubude bokuxhumana obusebenzayo be-roller bungama-80% ubude be-roller.Ngokusobala, lesi sisekelo asihambisani nesimo sangempela.Lesi ngesinye isizathu esenza kube lula ukulimaza iringi.

(3) Ithonya lesimo sokwelashwa kokushisa

Ikhwalithi yokucubungula ye-slewing bear ngokwayo ithinteka kakhulu ngokunemba kokukhiqiza, imvume ye-axial kanye nesimo sokwelashwa kokushisa.Isici esinganakwa kalula lapha ithonya lesimo sokwelashwa kokushisa.Ngokusobala, ukuze kugwenywe imifantu nokuwohloka endaweni yomjaho, kuyadingeka ukuthi indawo yomjaho ibe nokujula okwanele kongqimba oluqinile kanye nobulukhuni bomgogodla ngaphezu kokuqina okwanele.Ngokusho kwedatha yangaphandle, ukujula koqweqwe oluqinile lomgwaqo womjaho kufanele kuqiniswe ngokukhula komzimba ogoqayo, ukujula kungadlula u-6mm, futhi ubulukhuni besikhungo kufanele bube phezulu, ukuze umjaho ube nokuchotshozwa okuphezulu. ukumelana.Ngakho-ke, ukujula koqweqwe oluqinile ebusweni bomzila womjaho othwala i-slewing akwanele, futhi ukuqina komgogodla kuphansi, okungenye yezizathu zokulimala kwayo.

3.Izinyathelo zokuthuthukisa

(1) Ngokuhlaziywa kwesici esinomkhawulo, khulisa ngokufanelekile ubukhulu bepuleti lengxenye yokuxhuma phakathi kwe-turntable kanye ne-slewing bear, ukuze kuthuthukiswe ukuqina kwesakhiwo kwe-turntable.

(2) Lapho uklama ama-bearings okujula anobubanzi obukhulu, isici sokuphepha kufanele sandiswe ngokufanelekile;ngokufanelekile ukwandisa inani lama-roller nakho kungathuthukisa isimo sokuxhumana phakathi kwama-roller nomgwaqo womjaho.

(3) Thuthukisa ukunemba kokukhiqiza kwe-slewing bear, egxile enkambisweni yokwelashwa kokushisa.Inganciphisa isivinini esimaphakathi sokucisha imvamisa, ilwele ukuthola ubulukhuni obukhulu bobuso kanye nokujula kokuqina, futhi ivimbele imifantu ecishayo ebusweni bomgwaqo womjaho.