Pamusoro pezvikamu zvemabheya ekubvisa zvakatarwa, Timken yakagadzira nzira shanu dzinowanzo shandiswa dzekugadzirisa otomatiki mabheya (kureva SET-RIGHT, ACRO-SET, PROJECTA-SET, TORQUE-SET uye CLAMP-SET) senzira dzekugadzirisa nemaoko. Tarisa Tafura 1- "Kuenzanisa nzira dzekubvisa mabheya ekutakura dzakatetepa" kuratidza hunhu hwakasiyana hwenzira idzi mufomati yetafura. Mutsara wekutanga wetafura iyi unoenzanisa kugona kwenzira yega yega kudzora zvine musoro "range" yekuisa mabheya. Aya mavalues anongoshandiswa kuratidza hunhu hwese hwenzira yega yega mukuisa clearance, zvisinei nekuti clearance yakaiswa ku "preload" kana "axial clearance". Semuenzaniso, pasi pekoramu yeSET-RIGHT, shanduko inotarisirwa (yakanyanya mukana kana 6σ) clearance, nekuda kwezvinodzora zvemabheya chaiwo uye housing/shaft tolerance, inogona kubva paavhareji ye 0.008 inches kusvika 0.014 inches. Range yekubvisa inogona kukamurwa pakati pe axial clearance ne preload kuti iwedzere kushanda kwebeya/application. Tarisa Mufananidzo 5- "Kushandiswa kweNzira yeOtomatiki paKuisa Kubvisa Mabheya". Mufananidzo uyu unoshandisa dhizaini yetrakita yekurima ine mavhiri mana semuenzaniso kuratidza mashandisirwo akajairika enzira yekubvisa mabheya ane mabheya akapfava.
Tichakurukura zvakadzama tsananguro dzakananga, dzidziso uye maitiro epamutemo ekushandiswa kwenzira yega yega muzvitsauko zvinotevera zvemodule iyi. Nzira yeSET-RIGHT inowana clearance inodiwa nekudzora tolerance yebearing uye system yekuisa, pasina chikonzero chekugadzirisa nemaoko TIMKEN tapered roller bearing. Tinoshandisa mitemo yeprobability uye statistics kufanotaura mhedzisiro yetolerance idzi pabearing clearance. Kazhinji, nzira yeSET-RIGHT inoda kudzora kwakasimba kwe machining tolerances ye shaft/bearing housing, uku tichidzora zvakanyanya (nerubatsiro rwe accuracy grades uye codes) critical tolerances yemabearing. Nzira iyi inotenda kuti chikamu chimwe nechimwe mu assembly chine critical tolerances uye chinoda kudzorwa mukati meimwe range. Mutemo we probability unoratidza kuti mukana wekuti chikamu chimwe nechimwe mu assembly chive tolerance diki kana musanganiswa we large tolerances idiki kwazvo. Uye tevera "normal distribution of tolerance" (Mufananidzo 6), zvichienderana nemitemo yestatistics, superposition yezvikamu zvese saizi inowanzo kuwira pakati pe possible range of tolerance. Chinangwa cheSET-RIGHT method ndechekudzora tolerances dzakakosha chete dzinokanganisa bearing clearance. Kushivirira uku kunogona kunge kuri mukati mebheyaringi, kana kuti kunogona kusanganisira zvimwe zvikamu zvekuisa (kureva, upamhi A naB muMufananidzo 1 kana Mufananidzo 7, pamwe nedhayamita yekunze yeshaft uye dhayamita yemukati yebheyaringi). Mugumisiro ndewekuti, pamwe nemukana mukuru, nzvimbo yekuisa bearing ichawira mukati menzira inogamuchirwa yeSET-RIGHT. Mufananidzo 6. Chinoshanduka-shanduka chefrequency curve chinowanzo goverwa, x0.135%2.135%0.135%2.135%100% chinoshanduka arithmetic Avhareji yehuwandu 13.6% 13.6% 6s68.26%sss s68.26%95.46%99.73%x Mufananidzo 5. Kushandiswa kwefrequency yekuisa otomatiki yebearing clearance method Kuwanda kwevhiri repamberi giya rekuderedza injini Rear wheel power take-off Rear axle centre articulated gearbox Axial fan and water pump input shaft intermediate shaft power take-off clutch shaft pump drive device main reduction main reduction differential input shaft intermediate shaft output shaft differential planetary reduction device (side view) knuckle steering mechanism tapered roller bearing clearance Setting method SET-RIGHT method PROJECTA-SET method TORQUE-SET method CLAMP-SET method CRO-SET method Preset clearance component range (kazhinji mukana wekuvimbika ndewe 99.73% kana 6σ, asi mukugadzirwa ne output yakakwira , Dzimwe nguva inoda 99.994% kana 8σ). Hapana kugadziriswa kunodiwa pakushandisa nzira yeSET-RIGHT. Chinongodiwa chete kuunganidza nekubatanidza zvikamu zvemuchina.
Zviyero zvese zvinokanganisa clearance yemabheari mu assembly, zvakaita se bearing tolerances, shaft outer diameter, shaft length, bearing housing length, uye bearing housing inner diameter, zvinoonekwa sezvinhu zvakasiyana-siyana pakuverenga probability ranges. Mumuenzaniso uri muMufananidzo 7, mhete dzemukati nedzekunze dzakasungirirwa uchishandisa conventional tight fit, uye end cap inongosungirirwa pamucheto mumwe we shaft. s = (1316 x 10-6)1/2= 0.036 mm3s = 3 x 0.036=0.108mm (0.0043 in) 6s = 6 x 0.036= 0.216 mm (0.0085 inch) 99.73% ye assembly (probability range) possible interval = 0.654 Pa 100% ye mm (0.0257 inch) assembly (semuenzaniso), sarudza 0.108 mm (0.0043 inch) se avhareji ye clearance. Pa 99.73% ye assembly, mukana wekubviswa kwechinhu uri zero kusvika 0.216 mm (0.0085 inch). †Mhete mbiri dzemukati dzakazvimiririra dzinoenderana ne axial variable yakazvimirira, saka axial coefficient inopetwa kaviri. Mushure mekuverenga mukana wekuwanikwa kwechinhu, kureba kwe axial dimension kunofanirwa kutsanangurwa kuti pave ne bearing clearance inodiwa. Mumuenzaniso uyu, zviyero zvese kunze kwehurefu hwe shaft zvinozivikanwa. Ngatitarisei kuti tingaverenga sei hurefu hwe shaft kuti tiwane bearing clearance yakakodzera. Kuverengwa kwehurefu hwemubato (kuverengwa kwezviyero zvezita): B = A + 2C + 2D + 2E + F[ [2apo: A = avhareji yeupamhi hwemba iri pakati pemhete dzekunze = 13.000 mm (0.5118 inches) B = avhareji yehurefu hwemubato (TBD) C = Avhareji yeupamhi hwemubato usati waiswa = 21.550 mm (0.8484 inches) D = Kuwedzera kweupamhi hwemubato nekuda kweavhareji yemukati memhete* = 0.050 mm (0.0020 inch) E = Kuwedzera kweupamhi hwemubato nekuda kweavhareji yekunze memhete* = 0.076 mm (0.0030 inch) F = (inodiwa) avhareji yekubvisa mubato = 0.108 mm (0.0043 inch) * Yakashandurwa kuita axial tolerance yakaenzana. Tarisa chitsauko che "Timken® Tapered Roller Bearing Product Catalog" chegwaro rekushandisa rekubatanidza mhete dzemukati nedzekunze.
Nguva yekutumira: Chikumi-28-2020