{"id":2383,"date":"2026-06-26T03:42:50","date_gmt":"2026-06-26T03:42:50","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2383"},"modified":"2026-06-26T03:42:50","modified_gmt":"2026-06-26T03:42:50","slug":"helical-gears-ev-electric-vehicle-reducer","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/sk\/helical-gears-ev-electric-vehicle-reducer\/","title":{"rendered":"\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 pre reduktory elektrick\u00fdch vozidiel \u2013 Sprievodca kon\u0161trukciou pre vysok\u00e9 r\u00fdchlosti, hluk, vibr\u00e1cie a n\u00edzku hmotnos\u0165"},"content":{"rendered":"
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\u0160pir\u00e1lov\u00e9 prevody pre reduktory elektrick\u00fdch vozidiel \u2013 vysokor\u00fdchlostn\u00e1, n\u00edzka hlu\u010dnos\u0165 a n\u00edzka hmotnos\u0165<\/h1>\n

Ten\/T\u00e1\/To \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Dvojica vo vn\u00fatri jednor\u00fdchlostn\u00e9ho reduktora elektrick\u00e9ho vozidla pracuje v podmienkach, s ktor\u00fdmi sa \u017eiadna priemyseln\u00e1 prevodovka nestret\u00e1va s\u00fa\u010dasne: vstupn\u00e9 ot\u00e1\u010dky 15 000 \u2013 22 000 ot.\/min, ciele NVH desa\u0165kr\u00e1t pr\u00edsnej\u0161ie ako u ekvivalentn\u00fdch priemyseln\u00fdch pohonov, hmotnostn\u00fd rozpo\u010det meran\u00fd v gramoch a po\u017eiadavky na \u00fa\u010dinnos\u0165, kde ka\u017ed\u00e9 zlep\u0161enie o 0,11 TP3T sa premieta do merate\u013en\u00e9ho dodato\u010dn\u00e9ho dojazdu. T\u00e1to pr\u00edru\u010dka pokr\u00fdva technick\u00e9 po\u017eiadavky \u0161pecifick\u00e9 pre elektromobily, ktor\u00e9 robia reduktor pre elektromobily... \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> najn\u00e1ro\u010dnej\u0161ie v automobilovom sektore.<\/p>\n

Vy\u017eiadajte si \u0161pecifik\u00e1ciu reduk\u010dn\u00e9ho prevodu pre elektromobily \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Architekt\u00fara jednor\u00fdchlostn\u00e9ho reduktora pre elektromobily \u2013 pre\u010do jeden stupe\u0148 \u0161pir\u00e1lov\u00e9ho prevodu<\/h2>\n

Pohon elektromobilu na bat\u00e9rie sp\u00e1ja elektromotor priamo s poh\u00e1\u0148an\u00fdmi kolesami prostredn\u00edctvom jednostup\u0148ov\u00e9ho pohonu. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> reduktor a diferenci\u00e1l. Na rozdiel od prevodovky so spa\u013eovac\u00edm motorom so 6 \u2013 10 prevodov\u00fdmi stup\u0148ami, ktor\u00e9 udr\u017eiavaj\u00fa motor v \u00fazkom v\u00fdkonovom p\u00e1sme, elektromobil dosahuje svoj maxim\u00e1lny kr\u00fatiaci moment od nulov\u00fdch ot\u00e1\u010dok \u2013 nie je potrebn\u00e9 radenie. Jedin\u00fd reduk\u010dn\u00fd pomer je zvolen\u00fd tak, aby vyv\u00e1\u017eil maxim\u00e1lnu r\u00fdchlos\u0165 s trakciou pri n\u00edzkych r\u00fdchlostiach:<\/p>\n

V\u00fdber prevodov\u00e9ho pomeru:
\nMaxim\u00e1lna r\u00fdchlos\u0165 vozidla v_max = 200 km\/h; polomer valiv\u00e9ho pohybu pneumatiky r = 0,33 m
\nPo\u017eadovan\u00e1 r\u00fdchlos\u0165 kolesa: n_kolo = v_max \/ (2\u03c0 \u00d7 r \u00d7 60\/1000) = 200 000 \/ (2\u03c0 \u00d7 0,33 \u00d7 60) = 1 607 ot.\/min.<\/p>\n

Ak s\u00fa maxim\u00e1lne ot\u00e1\u010dky motora n_motor = 18 000 ot.\/min.:
\nJednostup\u0148ov\u00fd prevodov\u00fd pomer i = n_motora \/ n_kolesa = 18 000 \/ 1 607 \u2248 11,2:1<\/p>\n

Typick\u00e9 reduk\u010dn\u00e9 pomery EV: 8:1 a\u017e 14:1 (jednostup\u0148ov\u00fd \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> p\u00e1r)<\/p>\n

Tento jednostup\u0148ov\u00fd pomer vy\u017eaduje \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pastorok so z\u2081 zvy\u010dajne 16 \u2013 22 zubami a koleso so z\u2082 = 150 \u2013 250 zubami \u2013 koleso s vysok\u00fdm po\u010dtom zubov, ktor\u00e9 je n\u00e1ro\u010dn\u00e9 vyrobi\u0165 pod\u013ea triedy DIN 4 \u2013 5, preto\u017ee presnos\u0165 profilu na ozubenom kolese s ve\u013ek\u00fdm priemerom vy\u017eaduje dlh\u0161\u00ed \u010das br\u00fasenia a starostlivej\u0161ie tepeln\u00e9 riadenie po\u010das br\u00fasenia.<\/p>\n

V\u00fdzva vysokej r\u00fdchlosti \u2013 Pre\u010do v\u0161etko ovl\u00e1da kv pri 18 000 ot\u00e1\u010dkach za min\u00fatu<\/h2>\n

Dynamick\u00fd faktor K_V v norme ISO 6336 zoh\u013ead\u0148uje dodato\u010dn\u00fa silu z\u00e1beru ozuben\u00fdch kolies generovan\u00fa \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> vlastn\u00e1 prenosov\u00e1 chyba p\u00e1ru, ktor\u00e1 bud\u00ed syst\u00e9m na sie\u0165ovej frekvencii. K_V silne z\u00e1vis\u00ed od r\u00fdchlosti \u2013 dramaticky st\u00fapa nad pribli\u017ene 5 m\/s r\u00fdchlos\u0165 na \u010diare rozstupu pre ni\u017e\u0161ie triedy presnosti DIN:<\/p>\n

\n\n\n\n\n\n\n\n\n
R\u00fdchlos\u0165 na \u010diare rozstupu<\/th>\nDIN trieda 8 K_V<\/th>\nDIN trieda 6 K_V<\/th>\nTrieda DIN 4\u20135 K_V<\/th>\nD\u00f4sledok pre hodnotenie prevodov\u00e9ho stup\u0148a<\/th>\n<\/tr>\n<\/thead>\n
5 m\/s (priemyseln\u00e9)<\/td>\n1,20 \u2013 1,35<\/td>\n1,10 \u2013 1,18<\/td>\n1,04 \u2013 1,07<\/td>\nV\u0161etky triedy s\u00fa akceptovate\u013en\u00e9<\/td>\n<\/tr>\n
15 m\/s (r\u00fdchla priemyseln\u00e1)<\/td>\n1,60 \u2013 1,95<\/td>\n1,25 \u2013 1,40<\/td>\n1,06 \u2013 1,10<\/td>\nDIN 8 neprijate\u013en\u00e9; Vy\u017eaduje sa DIN 5+<\/td>\n<\/tr>\n
35 m\/s (EV: ~10 000 ot.\/min., M3, d=60 mm)<\/td>\n2,5 \u2013 3,5+<\/td>\n1,50 \u2013 1,80<\/td>\n1,08 \u2013 1,14<\/td>\nDIN 8 nepou\u017eite\u013en\u00e9; DIN 6 okrajov\u00e1; DIN 4\u20135 nevyhnutn\u00e9<\/td>\n<\/tr>\n
60 m\/s (EV: ~18 000 ot.\/min., M3, d=60 mm)<\/td>\n>4,0 (nepou\u017eite\u013en\u00e9)<\/td>\n2,0\u20132,5+<\/td>\n1,10 \u2013 1,18<\/td>\nIba trieda DIN 4\u20135 poskytuje prijate\u013en\u00fd KV pre menovit\u00fd \u0161pir\u00e1lov\u00fd prevod EV.<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Pri 18 000 ot.\/min s M3 a z\u2081 = 20 (d\u2081 = 64 mm) je r\u00fdchlos\u0165 pozd\u013a\u017e l\u00ednie rozstupu v = \u03c0 \u00d7 0,064 \u00d7 18 000\/60 = 60,3 m\/s. Pri tejto r\u00fdchlosti sa odva\u013eovacia fr\u00e9za triedy DIN 8 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> generuje K_V > 4,0 \u2013 \u010do znamen\u00e1, \u017ee dynamick\u00e1 z\u00e1berov\u00e1 sila je 4\u00d7 v\u00e4\u010d\u0161ia ako statick\u00e1 pren\u00e1\u0161an\u00e1 sila. Nejde o 4\u00d7 zn\u00ed\u017eenie \u00fa\u010dinnosti; ide o 4\u00d7 zv\u00fd\u0161enie sily zubov pou\u017eitej pri v\u00fdpo\u010dte pevnosti ozuben\u00e9ho kolesa \u2013 \u010do vy\u017eaduje, aby ozuben\u00e9 koleso bolo dimenzovan\u00e9 tak, ako keby pren\u00e1\u0161alo 4\u00d7 skuto\u010dn\u00fd kr\u00fatiaci moment. Naproti tomu trieda DIN 4\u20135 s K_V \u2248 1,12 umo\u017e\u0148uje dimenzova\u0165 ozuben\u00e9 koleso iba na 12% nad statick\u00fdm za\u0165a\u017een\u00edm \u2013 \u010do predstavuje 3,5-n\u00e1sobn\u00e9 zn\u00ed\u017eenie po\u017eadovanej ve\u013ekosti ozuben\u00e9ho kolesa v porovnan\u00ed s triedou DIN 8. Preto EV \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Presn\u00e9 br\u00fasenie pod\u013ea DIN triedy 4\u20135 nie je volite\u013en\u00e9: je to jedin\u00e1 cesta k ozuben\u00e9mu kolesu, ktor\u00e9 je z\u00e1rove\u0148 dostato\u010dne \u013eahk\u00e9 a dostato\u010dne pevn\u00e9.<\/p>\n

Po\u017eiadavky na hluk, vibr\u00e1cie a vibr\u00e1cie \u2013 Kab\u00edna elektromobilu je tich\u00e1 miestnos\u0165<\/h2>\n

\"\u0160pir\u00e1lov\u00e9<\/p>\n

Reduktor elektromobilu \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u2014 Presne br\u00fasen\u00e9 pod\u013ea DIN triedy 4\u20135 s parabolick\u00fdm od\u013eah\u010den\u00edm hrotu (C_\u03b1 = 5\u201312 \u00b5m) a izotropn\u00fdm superfini\u0161ovan\u00edm (Ra \u2264 0,05 \u00b5m). Kombinovan\u00fd v\u00fdsledok: chyba prenosu pod 2 \u00b5m na rozstupovej kru\u017enici a pr\u00edspevok z\u00e1beru ozuben\u00fdch kolies k hluku v kab\u00edne pod 30 dB(A), \u010do sp\u013a\u0148a ciele NVH vozidla bez maskovania hluku spa\u013eovacieho motora<\/p>\n

Pre\u010do je \u0161um a vibr\u00e1cie (NVH) u elektromobilov \u0165a\u017e\u0161ie ako \u0161um a vibr\u00e1cie u automobilov\u00fdch spa\u013eovac\u00edch motorov<\/h3>\n

Spa\u013eovac\u00ed motor (ICE) vytv\u00e1ra v kab\u00edne vozidla pri dia\u013eni\u010dnej r\u00fdchlosti \u0161irokop\u00e1smov\u00fa hlukov\u00fa hladinu pribli\u017ene 55 \u2013 70 dB(A), ktor\u00e1 maskuje kv\u00edlenie ozuben\u00fdch kolies z prevodovky. Hluk ozuben\u00e9ho kolesa (z \u00d7 ot.\/min. \/ 60) sa v hluku ICE str\u00e1ca. V bat\u00e9riovom elektrickom vozidle ICE ch\u00fdba: akustick\u00e1 hladina v kab\u00edne pri r\u00fdchlosti 100 km\/h kles\u00e1 na 40 \u2013 50 dB(A). Reduktor EV \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> frekvencia prenosu \u2013 napr\u00edklad z\u2081 = 20, 3 600 ot.\/min. pri 100 km\/h \u2192 frekvencia prenosu = 1 200 Hz \u2013 je teraz jasne po\u010dute\u013en\u00e1 ako t\u00f3nov\u00e9 kv\u00edlenie s hlu\u010dnos\u0165ou 45 \u2013 50 dB(A) bez protiopatren\u00ed na zn\u00ed\u017eenie \u0161umu a vibr\u00e1ci\u00ed (NVH). Cie\u013eov\u00e9 hodnoty NVH od v\u00fdrobcov elektromobilov pre pr\u00edspevok k \u0161umu a vibr\u00e1ci\u00e1m s\u00fa zvy\u010dajne pod 30 \u2013 35 dB(A) pri uchu vodi\u010da.<\/p>\n

Izotropn\u00e9 superfini\u0161ovanie \u2013 viac ne\u017e len \u0161tandardn\u00e9 br\u00fasenie<\/h3>\n

\u0160tandardn\u00e9 gener\u00e1torov\u00e9 br\u00fasenie H\u00d6FLER dosahuje Ra = 0,2\u20130,4 \u00b5m na \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> bok zuba. Reduktory EV navy\u0161e pou\u017e\u00edvaj\u00fa izotropn\u00e9 superfini\u0161ovanie (ISF) \u2013 chemicky ur\u00fdchlen\u00fd vibra\u010dn\u00fd proces dokon\u010dovania hmoty, ktor\u00fd rovnomerne odstra\u0148uje br\u00fasne vrcholy zo v\u0161etk\u00fdch orient\u00e1ci\u00ed povrchu, \u010d\u00edm sa dosahuje Ra = 0,02 \u2013 0,08 \u00b5m bez ak\u00fdchko\u013evek smerov\u00fdch br\u00fasnych st\u00f4p. V\u00fdhoda NVH: ka\u017ed\u00e9 zn\u00ed\u017eenie Ra o 50% zni\u017euje hluk z\u00e1beru ozuben\u00e9ho kolesa pribli\u017ene o 2 \u2013 3 dB(A), preto\u017ee jemnej\u0161\u00ed povrch zvy\u0161uje pomer filmu EHL \u03bb a zni\u017euje budenie kontaktu s drsnos\u0165ou.<\/p>\n

\u0160tandardn\u00e9 br\u00fasen\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso pre elektromobily: Ra = 0,2\u20130,3 \u00b5m \u2192 pr\u00edspevok hluku siete ~42 dB(A) z\u00e1kladn\u00e1 hodnota
\nPo izotropnom superfini\u0161ovan\u00ed: Ra = 0,03\u20130,06 \u00b5m \u2192 pr\u00edspevok k hluku siete ~35\u201338 dB(A) \u2014 typick\u00e9 zlep\u0161enie o 5-7 dB(A)<\/p>\n

\u00da\u010dinnos\u0165 a dojazd \u2013 z\u00e1le\u017e\u00ed na ka\u017edej 0,11 TP3T<\/h2>\n

Reduktor elektromobilu \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u00da\u010dinnos\u0165 priamo ovplyv\u0148uje dojazd vozidla. Pri priemernom v\u00fdkone na dia\u013enici 60 kW a \u00fa\u010dinnosti reduktora 98,51 TP3T spotrebuje prevodovka nepretr\u017eite 0,9 kW. Ak sa \u00fa\u010dinnos\u0165 zlep\u0161\u00ed na 99,01 TP3T, spotreba klesne na 0,6 kW \u2013 \u00faspora 0,3 kW, ktor\u00e1 pri r\u00fdchlosti 120 km\/h zodpoved\u00e1 pribli\u017ene 1,5 km dojazdu navy\u0161e zo 75 kWh bat\u00e9rie. T\u00e1to citlivos\u0165 vysvet\u013euje invest\u00edcie odvetvia elektromobilov do: syntetick\u00e9ho oleja PAO \u0161peci\u00e1lne vyvinut\u00e9ho s pr\u00edsadami EHL s n\u00edzkou trakciou; izotropn\u00e9ho superfini\u0161ovania na minimaliz\u00e1ciu trenia drsnosti; a presne kalibrovan\u00e9ho mno\u017estva oleja (pr\u00edli\u0161 ve\u013ea oleja sp\u00f4sobuje straty v\u00edren\u00edm; pr\u00edli\u0161 m\u00e1lo sp\u00f4sobuje hladovanie).<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
N\u00e1vrhov\u00fd parameter<\/th>\n\u0160tandardn\u00e9 priemyseln\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/th>\n\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koleso reduktora EV<\/th>\nPre\u010do in\u00e9<\/th>\n<\/tr>\n<\/thead>\n
Trieda presnosti zubov<\/td>\nTrieda DIN 6\u20138<\/td>\nTrieda DIN 3\u20135<\/td>\nRiadenie K_V pri r\u00fdchlosti na \u010diare sklonu 50\u201370 m\/s<\/td>\n<\/tr>\n
Povrchov\u00e1 \u00faprava Ra<\/td>\n0,4\u20130,8 \u00b5m (mlet\u00e9)<\/td>\n0,02\u20130,08 \u00b5m (ISF)<\/td>\nCie\u013eov\u00e1 hodnota NVH + \u00fa\u010dinnos\u0165 (kvalita filmu EHL)<\/td>\n<\/tr>\n
Materi\u00e1l<\/td>\n20CrMnTi, 42CrMo<\/td>\n18CrNiMo7-6, 20CrMnTi<\/td>\nVysokocyklov\u00e1 \u00fanava; chladn\u00e9 podnebie Po\u017eiadavka Charpyho<\/td>\n<\/tr>\n
Od\u013eah\u010denie hrotu C_\u03b1<\/td>\n15\u201330 \u00b5m (v\u0161eobecne)<\/td>\n5\u201312 \u00b5m (presnos\u0165)<\/td>\nNVH: nadmern\u00e9 od\u013eah\u010denie v bode rekupera\u010dn\u00e9ho brzdenia zni\u017euje TE<\/td>\n<\/tr>\n
Mazivo<\/td>\nMiner\u00e1lny prevodov\u00fd olej ISO VG 220<\/td>\nN\u00edzkovisk\u00f3zny PAO VG 75W-90, pr\u00edsada pre n\u00edzku trakciu \u0161pecifick\u00e1 pre elektromobily<\/td>\n\u00da\u010dinnos\u0165 + kompatibilita s izol\u00e1ciou elektromotora<\/td>\n<\/tr>\n
Materi\u00e1l krytu<\/td>\nLiatina<\/td>\nHlin\u00edkov\u00fd odliatok pod vysok\u00fdm tlakom (ADC12)<\/td>\nHmotnos\u0165: liatina \u2248 3\u00d7 \u0165a\u017e\u0161ia na objem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Regenerat\u00edvne brzdenie \u2013 oba boky zubov pod za\u0165a\u017een\u00edm<\/h2>\n

Pri rekupera\u010dnom brzden\u00ed pracuje motor elektromobilu ako gener\u00e1tor \u2013 kr\u00fatiaci moment kolesa poh\u00e1\u0148a motor dozadu, \u010d\u00edm sa kr\u00fatiaci moment obracia cez... \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> p\u00e1ru. T\u00e1to zmena znamen\u00e1 \u201epobre\u017en\u00fd\u201c bok \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> (norm\u00e1lne neza\u0165a\u017een\u00fd v re\u017eime pohonu) teraz pren\u00e1\u0161a pln\u00fd brzdn\u00fd moment. Obe boky musia by\u0165 \u0161pecifikovan\u00e9 pre rovnak\u00fa triedu presnosti a \u0161pecifik\u00e1ciu od\u013eah\u010denia hrotu. Korea Ever-Power \u0161pecifikuje triedu hr\u00fabky zubov DIN 3967 gh (tesn\u00e1 v\u00f4\u013ea) pre reduk\u010dn\u00e9 prevody EV, \u010d\u00edm sa zabezpe\u010d\u00ed, \u017ee prechod z hnacieho na dobehov\u00fd bok je plynul\u00fd s minim\u00e1lnym n\u00e1razom na mal\u00fa v\u00f4\u013eu.<\/p>\n

Korea Ever-Power \u2014 \u0160pir\u00e1lov\u00e9 ozuben\u00e9 koleso reduktora pre elektromobily<\/h2>\n

\"V\u00fdrobn\u00fd<\/p>\n

Reduktor pre elektromobily Ever-Power od K\u00f3rey \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> v\u00fdroba \u2014 br\u00fasenie na CNC stroji H\u00d6FLER pod\u013ea DIN triedy 4\u20135, po ktorom nasleduje izotropn\u00e9 superfini\u0161ovanie na Ra \u2264 0,06 \u00b5m. Analyz\u00e1tor ozuben\u00fdch kolies pred odoslan\u00edm over\u00ed presnos\u0165 profilu aj hr\u00fabku zuba, pri\u010dom krivka TE je s\u00fa\u010das\u0165ou certifik\u00e1tu.<\/p>\n

K\u00f3rejsk\u00e1 spolo\u010dnos\u0165 Ever-Power vyr\u00e1ba ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/strong> pre jednor\u00fdchlostn\u00e9 a viacr\u00fdchlostn\u00e9 reduktory EV z cementovan\u00fdch ocel\u00ed 18CrNiMo7-6 a 20CrMnTi, trieda DIN 3\u20135, Ra \u2264 0,2 \u00b5m z br\u00fasenia H\u00d6FLER a Ra \u2264 0,06 \u00b5m po ISF. Parabolick\u00e9 od\u013eah\u010denie hrotu sa vypo\u010d\u00edta pre cel\u00fd rozsah za\u0165a\u017eenia EV (pohon + rekuper\u00e1cia) s kompromisnou ve\u013ekos\u0165ou, ktor\u00e1 minimalizuje TE v naj\u010dastej\u0161om prev\u00e1dzkovom bode. Ako priamy v\u00fdrobca \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a>Spolo\u010dnos\u0165 Korea Ever-Power poskytuje na certifik\u00e1te analyz\u00e1tora prevodov krivku amplit\u00fady budenia TE (nameran\u00e1 chyba prevodovky v z\u00e1vislosti od uhla nakl\u00e1\u0148ania), \u010do umo\u017e\u0148uje simula\u010dn\u00e9mu t\u00edmu NVH v\u00fdrobcu origin\u00e1lnych dielov pou\u017ei\u0165 skuto\u010dn\u00e9 budenie TE namiesto odhadovanej hodnoty pod\u013ea triedy DIN. Prehliadajte si sortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a> pre elektromobily a vysokor\u00fdchlostn\u00e9 presn\u00e9 aplik\u00e1cie.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
Pre\u010do reduktory elektromobilov pou\u017e\u00edvaj\u00fa jednostup\u0148ov\u00fd \u0161pir\u00e1lov\u00fd prevod namiesto dvojstup\u0148ov\u00e9ho pre prevodov\u00fd pomer 10\u201314:1?<\/strong><\/p>\n

Jednostup\u0148ov\u00fd pomer 10\u201314:1 je pre \u0161tandard na hranici \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> p\u00e1r bez nadmern\u00e9ho rizika podrezania pastorka (zvy\u010dajne sa vy\u017eaduje z\u2081 \u2265 16) \u2013 ale je to dosiahnute\u013en\u00e9 aj ako jednostup\u0148ov\u00e9. Dvojstup\u0148ov\u00e9 usporiadanie by dosiahlo vy\u0161\u0161iu \u00fa\u010dinnos\u0165 na stupe\u0148 (dva stupne s 99,21 TP3T ka\u017ed\u00fd = 98,41 TP3T dohromady, oproti jednostup\u0148ov\u00e9mu s 98,81 TP3T), ale zvy\u0161uje hmotnos\u0165, objem oleja a zlo\u017eitos\u0165 krytu. Balenie elektromobilu je extr\u00e9mne tesn\u00e9 \u2013 elektrick\u00e1 n\u00e1prava (motor + prevodovka + diferenci\u00e1l v jednej integrovanej jednotke) m\u00e1 cie\u013eov\u00fa hmotnos\u0165 50 \u2013 90 kg pre pohon s v\u00fdkonom 150 kW+. Jednostup\u0148ov\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Reduktor je uprednost\u0148ovan\u00fd, preto\u017ee dvojstup\u0148ov\u00fd prevod prid\u00e1va 5 \u2013 15 kg a 50 \u2013 100 mm axi\u00e1lnej d\u013a\u017eky, \u010do je zvy\u010dajne neprijate\u013en\u00e9 pri obmedzenom balen\u00ed zadnej n\u00e1pravy osobn\u00e9ho elektromobilu.<\/p>\n<\/div>\n

M\u00f4\u017eu sa v reduktore pre elektromobily pou\u017ei\u0165 \u0161tandardn\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 automobilov\u00fdch prevodoviek?<\/strong><\/p>\n

\u0160tandardn\u00e9 prevodov\u00e9 stupne spa\u013eovac\u00edch motorov pracuj\u00fa pri r\u00fdchlostiach na osi rozstupu 5 \u2013 25 m\/s a zvy\u010dajne dosahuj\u00fa triedu DIN 6 \u2013 7, \u010do je posta\u010duj\u00face pre regul\u00e1ciu K_V pri t\u00fdchto r\u00fdchlostiach. Reduktor EV \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> mus\u00ed fungova\u0165 pri r\u00fdchlosti na \u010diare sklonu 40 \u2013 70 m\/s, kde K_V pre triedu DIN 6 \u2013 7 st\u00fapne na 1,5 \u2013 2,0 \u2013 \u010do je prijate\u013en\u00e9 pre prevodovku so spa\u013eovac\u00edm motorom, ktor\u00e1 rad\u00ed iba pod za\u0165a\u017een\u00edm po\u010das 10 sek\u00fand pri maxim\u00e1lnej r\u00fdchlosti, ale nie pre reduktor elektromobilu, ktor\u00fd pracuje nepretr\u017eite pri maxim\u00e1lnej r\u00fdchlosti po\u010das jazdy na dia\u013enici. \u0160tandardn\u00e9 ozuben\u00e9 koles\u00e1 prevodovky so spa\u013eovac\u00edm motorom op\u00e4tovne pou\u017e\u00edvan\u00e9 v elektromobile tie\u017e zlyh\u00e1vaj\u00fa v oblasti hluku, vibr\u00e1ci\u00ed a vibr\u00e1ci\u00ed (NVH): pr\u00edsnej\u0161iu cie\u013eov\u00fa hodnotu hluku v kab\u00edne elektromobilu (30 \u2013 35 dB(A)) nemo\u017eno splni\u0165 s presnos\u0165ou DIN 6 \u2013 7 a \u0161tandardnou povrchovou \u00fapravou br\u00fasen\u00fdm povrchom.<\/p>\n<\/div>\n

Ak\u00e1 \u0161pecifik\u00e1cia oleja je spr\u00e1vna pre \u0161pir\u00e1lov\u00fd prevod reduktora elektromobilu?<\/strong><\/p>\n

Maziv\u00e1 pre reduktory elektromobilov musia s\u00fa\u010dasne sp\u013a\u0148a\u0165 \u0161tyri obmedzenia, ktor\u00e9 si navz\u00e1jom protire\u010dia: (1) n\u00edzka viskozita (VG 75W-90 alebo ni\u017e\u0161ia) pre zn\u00ed\u017eenie str\u00e1t v\u00edren\u00edm pri 18 000 ot.\/min.; (2) dostato\u010dn\u00e1 hr\u00fabka filmu EHL pri vysok\u00fdch ot\u00e1\u010dkach (z\u00e1kladov\u00fd olej PAO pre n\u00edzky koeficient trakcie); (3) elektrick\u00e1 izol\u00e1cia (\u017eiadne i\u00f3nov\u00e9 alebo kovov\u00e9 pr\u00edsady, ktor\u00e9 by zvy\u0161ovali vodivos\u0165 \u2013 d\u00f4le\u017eit\u00e9, preto\u017ee integrovan\u00fd motor elektrickej n\u00e1pravy m\u00f4\u017ee prep\u00fa\u0161\u0165a\u0165 n\u00edzko\u00farov\u0148ov\u00fd pr\u00fad cez olej na povrch ozuben\u00e9ho kolesa, ak je vodiv\u00fd); (4) kompatibiln\u00e9 so zliatinami medi v diferenci\u00e1li. \u0160tandardn\u00e9 prevodov\u00e9 oleje GL-5 nesp\u013a\u0148aj\u00fa po\u017eiadavku (3); \u0161tandardn\u00e1 automatick\u00e1 prevodovka nesp\u013a\u0148a po\u017eiadavku (2). V\u00fdrobcovia OEM pre elektromobily \u0161pecifikuj\u00fa \u0161peci\u00e1lne kvapaliny pre elektrick\u00e9 n\u00e1pravy, ktor\u00e9 sp\u013a\u0148aj\u00fa normy JASO M369 alebo propriet\u00e1rne normy OEM, ktor\u00e9 sp\u013a\u0148aj\u00fa v\u0161etky \u0161tyri obmedzenia. Reduktor elektromobilov od spolo\u010dnosti Korea Ever-Power \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> s\u00fa navrhnut\u00e9 na prev\u00e1dzku s t\u00fdmito \u0161pecializovan\u00fdmi kvapalinami pre elektrick\u00e9 n\u00e1pravy s n\u00edzkou viskozitou a n\u00edzkou trakciou.<\/p>\n<\/div>\n

Ako sa porovn\u00e1va \u00fanavov\u00e1 \u017eivotnos\u0165 \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa elektromobilu s konven\u010dn\u00fdm ozuben\u00fdm kolesom prevodovky so spa\u013eovac\u00edm motorom?<\/strong><\/p>\n

Pri r\u00fdchlosti 100 km\/h m\u00e1 reduktor elektromobilu s prevodov\u00fdm pomerom i = 11,2:1 a z\u2081 = 20 ot\u00e1\u010dky pastorka 3 600 ot.\/min a frekvenciu z\u00e1beru 1 200 Hz \u2013 \u010do predstavuje 1 200 \u00d7 3 600 ot.\/min \u00d7 100 000 km\/160 km\/h = pribli\u017ene 4,5 \u00d7 10\u2079 kontaktn\u00fdch cyklov po\u010das 200 000 km \u017eivotnosti vozidla. Ide o re\u017eim ve\u013emi vysokej cyklickej \u00fanavy (VHCF, nad r\u00e1mec referen\u010dn\u00e9ho po\u010dtu cyklov pod\u013ea normy ISO 6336, ktor\u00fd je 3 \u00d7 10\u2076). Elektromobil \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> mus\u00ed by\u0165 navrhnut\u00fd pre limit \u017eivotnosti VHCF (v podstate ploch\u00fa \u010das\u0165 krivky SN nad ~10\u2078 cyklov), nielen pre referen\u010dn\u00fd po\u010det cyklov 3 \u00d7 10\u2076. Pre cementovan\u00e9 ozuben\u00e9 koles\u00e1 18CrNiMo7-6 je \u03c3_H limit pri 10\u2079 cykloch pribli\u017ene o 5\u201310% pod referen\u010dnou hodnotou 3 \u00d7 10\u2076 \u2013 mierne zn\u00ed\u017eenie, ktor\u00e9 je pokryt\u00e9 \u0161tandardn\u00fdm faktorom \u017eivotnosti Y_N pod\u013ea normy ISO 6336. Spolo\u010dnos\u0165 Korea Ever-Power pou\u017e\u00edva korekciu Y_N pre celkov\u00fd po\u010det cyklov aplik\u00e1cie EV vo v\u00fdpo\u010dte pod\u013ea normy ISO 6336.<\/p>\n

\"diel\u0148a<\/p>\n<\/div>\n

\n

\u0160pecifik\u00e1cia \u0161pir\u00e1lov\u00e9ho prevodu reduk\u010dn\u00e9ho prevodu EV<\/h2>\n

Uve\u010fte maxim\u00e1lne ot\u00e1\u010dky motora, prevodov\u00fd pomer, v\u00fdstupn\u00fd kr\u00fatiaci moment, cie\u013eov\u00fa hodnotu NVH a rozsah balenia. Spolo\u010dnos\u0165 Korea Ever-Power \u0161pecifikuje modul, po\u010det zubov, triedu DIN, od\u013eah\u010denie hrotu a po\u017eiadavku ISF \u2013 s krivkou TE na certifik\u00e1te analyz\u00e1tora ozuben\u00e9ho kolesa pre vstup simul\u00e1cie NVH.<\/p>\n

Vy\u017eiada\u0165 si \u0161pecifik\u00e1ciu v\u00fdstroja pre elektromobily<\/a>
\nSortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a><\/div>\n

Trieda DIN 3\u20135 \u00b7 ISF Ra \u2264 0,06 \u00b5m \u00b7 TE krivka \u00b7 Regenera\u010dn\u00e9 boky zubov \u00b7 18CrNiMo7-6 \u00b7 VHCF hodnotenie \u00b7 MOQ 1 kus<\/p>\n<\/div>\n

Redaktor: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 pre reduktory elektrick\u00fdch vozidiel \u2013 vysokor\u00fdchlostn\u00e1, n\u00edzka hlu\u010dnos\u0165 a n\u00edzka hmotnos\u0165 kon\u0161trukcie \u0160pir\u00e1lov\u00e1 ozuben\u00e1 kolesa vo vn\u00fatri jednor\u00fdchlostn\u00e9ho reduktora elektrick\u00e9ho vozidla pracuje v podmienkach, s ktor\u00fdmi sa \u017eiadna priemyseln\u00e1 prevodovka nestret\u00e1va s\u00fa\u010dasne: vstupn\u00e9 ot\u00e1\u010dky 15 000 \u2013 22 000 ot.\/min, ciele n\u00edzka hlu\u010dnos\u0165 desa\u0165kr\u00e1t pr\u00edsnej\u0161ie ako u ekvivalentn\u00fdch priemyseln\u00fdch pohonov, hmotnostn\u00fd rozpo\u010det meran\u00fd v gramoch a po\u017eiadavky na \u00fa\u010dinnos\u0165, kde [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[3082],"tags":[],"class_list":["post-2383","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/comments?post=2383"}],"version-history":[{"count":2,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2383\/revisions"}],"predecessor-version":[{"id":2385,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2383\/revisions\/2385"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/media?parent=2383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/categories?post=2383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/tags?post=2383"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}