{"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\/cs\/helical-gears-ev-electric-vehicle-reducer\/","title":{"rendered":"\u0160roubov\u00e1 ozuben\u00e1 kola pro reduktory elektromobil\u016f \u2013 Pr\u016fvodce konstrukc\u00ed pro vysok\u00e9 rychlosti, hluk, vibrace a vibrace a lehk\u00e9 konstrukce"},"content":{"rendered":"
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\u0160roubov\u00e1 ozuben\u00e1 kola pro reduktory elektromobil\u016f \u2013 vysokorychlostn\u00ed, hlukov\u011b a vibra\u010dn\u011b ru\u0161en\u00e1 a lehk\u00e1 konstrukce<\/h1>\n

Ten\/Ta\/To spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Dvojice uvnit\u0159 jednostup\u0148ov\u00e9ho reduktoru elektromobilu pracuje v podm\u00ednk\u00e1ch, se kter\u00fdmi se \u017e\u00e1dn\u00e1 pr\u016fmyslov\u00e1 p\u0159evodovka nesetk\u00e1 sou\u010dasn\u011b: vstupn\u00ed ot\u00e1\u010dky 15 000\u201322 000 ot.\/min, c\u00edlov\u00e9 hodnoty NVH desetkr\u00e1t ni\u017e\u0161\u00ed ne\u017e u ekvivalentn\u00edch pr\u016fmyslov\u00fdch pohon\u016f, hmotnostn\u00ed rozpo\u010det m\u011b\u0159en\u00fd v gramech a po\u017eadavky na \u00fa\u010dinnost, kde ka\u017ed\u00e9 zlep\u0161en\u00ed o 0,11 TP3T se prom\u00edt\u00e1 do m\u011b\u0159iteln\u00e9ho dodate\u010dn\u00e9ho dojezdu. Tato p\u0159\u00edru\u010dka se zab\u00fdv\u00e1 specifick\u00fdmi technick\u00fdmi po\u017eadavky elektromobil\u016f, kter\u00e9 reduktor elektromobil\u016f... \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> nejn\u00e1ro\u010dn\u011bj\u0161\u00ed v automobilov\u00e9m sektoru.<\/p>\n

Vy\u017e\u00e1dat si specifikaci reduktoru pro elektromobily \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Architektura jednorychlostn\u00edho reduktoru pro elektromobily \u2013 Pro\u010d jeden stupe\u0148 spir\u00e1lov\u00e9ho p\u0159evodu<\/h2>\n

Pohonn\u00e9 \u00fastroj\u00ed elektromobilu na baterie spojuje elektromotor p\u0159\u00edmo s poh\u00e1n\u011bn\u00fdmi koly prost\u0159ednictv\u00edm jednostup\u0148ov\u00e9ho p\u0159evodu. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> reduktor a diferenci\u00e1l. Na rozd\u00edl od p\u0159evodovky spalovac\u00edho motoru s 6\u201310 p\u0159evodov\u00fdmi stupni, kter\u00e9 udr\u017euj\u00ed motor v \u00fazk\u00e9m v\u00fdkonov\u00e9m p\u00e1smu, dosahuje elektromobil sv\u00e9ho maxim\u00e1ln\u00edho to\u010div\u00e9ho momentu ji\u017e od nulov\u00fdch ot\u00e1\u010dek \u2013 nen\u00ed nutn\u00e9 \u0159adit. Jedin\u00fd p\u0159evodov\u00fd pom\u011br je zvolen tak, aby vyv\u00e1\u017eil maxim\u00e1ln\u00ed rychlost a trakci p\u0159i n\u00edzk\u00fdch rychlostech:<\/p>\n

Volba p\u0159evodov\u00e9ho pom\u011bru:
\nMaxim\u00e1ln\u00ed rychlost vozidla v_max = 200 km\/h; polom\u011br odvalov\u00e1n\u00ed pneumatik r = 0,33 m
\nPo\u017eadovan\u00e9 ot\u00e1\u010dky kola: 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

Pokud jsou maxim\u00e1ln\u00ed ot\u00e1\u010dky motoru n_motor = 18 000 ot\/min:
\nJednostup\u0148ov\u00fd p\u0159evodov\u00fd pom\u011br i = n_motor \/ n_kolo = 18 000 \/ 1 607 \u2248 11,2:1<\/p>\n

Typick\u00e9 p\u0159evodov\u00e9 pom\u011bry pro elektromobily: 8:1 a\u017e 14:1 (jednostup\u0148ov\u00fd spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u00e1r)<\/p>\n

Tento jednostup\u0148ov\u00fd pom\u011br vy\u017eaduje spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> pastorek s z\u2081 obvykle 16\u201322 zuby a kolo s z\u2082 = 150\u2013250 zuby \u2013 kolo s vysok\u00fdm po\u010dtem zub\u016f, jeho\u017e v\u00fdroba podle DIN t\u0159\u00eddy 4\u20135 je n\u00e1ro\u010dn\u00e1, proto\u017ee p\u0159esnost profilu u ozuben\u00e9ho kola s velk\u00fdm pr\u016fm\u011brem vy\u017eaduje del\u0161\u00ed dobu brou\u0161en\u00ed a pe\u010dliv\u011bj\u0161\u00ed tepeln\u00e9 \u0159\u00edzen\u00ed b\u011bhem brou\u0161en\u00ed.<\/p>\n

V\u00fdzva pro vysok\u00e9 ot\u00e1\u010dky \u2013 Pro\u010d je KV p\u0159i 18 000 ot.\/min. kl\u00ed\u010dov\u00e9<\/h2>\n

Dynamick\u00fd faktor K_V v norm\u011b ISO 6336 zohled\u0148uje dodate\u010dnou s\u00edlu v z\u00e1b\u011bru ozuben\u00fdch kol generovanou spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> vlastn\u00ed p\u0159enosov\u00e1 chyba p\u00e1ru, kter\u00e1 bud\u00ed syst\u00e9m na s\u00ed\u0165ov\u00e9 frekvenci. K_V siln\u011b z\u00e1vis\u00ed na rychlosti \u2013 pro ni\u017e\u0161\u00ed t\u0159\u00eddy p\u0159esnosti DIN dramaticky stoup\u00e1 nad p\u0159ibli\u017en\u011b 5 m\/s rychlosti na ose stoup\u00e1n\u00ed:<\/p>\n

\n\n\n\n\n\n\n\n\n
Rychlost na linii t\u00f3nu<\/th>\nDIN t\u0159\u00edda 8 K_V<\/th>\nDIN t\u0159\u00edda 6 K_V<\/th>\nDIN t\u0159\u00edda 4\u20135 K_V<\/th>\nD\u016fsledek pro jmenovit\u00fd p\u0159evodov\u00fd stupe\u0148<\/th>\n<\/tr>\n<\/thead>\n
5 m\/s (pr\u016fmyslov\u00e9)<\/td>\n1,20\u20131,35<\/td>\n1,10\u20131,18<\/td>\n1,04\u20131,07<\/td>\nV\u0161echny t\u0159\u00eddy jsou p\u0159ijateln\u00e9<\/td>\n<\/tr>\n
15 m\/s (rychl\u00fd pr\u016fmyslov\u00fd)<\/td>\n1,60\u20131,95<\/td>\n1,25\u20131,40<\/td>\n1,06\u20131,10<\/td>\nDIN 8 nep\u0159ijateln\u00e9; Nutn\u00fd DIN 5+<\/td>\n<\/tr>\n
35 m\/s (EV: ~10 000 ot.\/min, M3, d=60 mm)<\/td>\n2,5\u20133,5+<\/td>\n1,50\u20131,80<\/td>\n1,08\u20131,14<\/td>\nDIN 8 nepou\u017eiteln\u00fd; DIN 6 okrajov\u00fd; DIN 4\u20135 nezbytn\u00e9<\/td>\n<\/tr>\n
60 m\/s (EV: ~18 000 ot.\/min, M3, d=60 mm)<\/td>\n>4,0 (nepou\u017eiteln\u00e9)<\/td>\n2,0\u20132,5+<\/td>\n1,10\u20131,18<\/td>\nPouze t\u0159\u00edda DIN 4\u20135 poskytuje p\u0159ijateln\u00fd KV pro jmenovit\u00fd v\u00fdkon spir\u00e1lov\u00e9ho ozuben\u00e9ho kola EV<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

P\u0159i 18 000 ot\/min s M3 a z\u2081 = 20 (d\u2081 = 64 mm) je rychlost na ose rozte\u010de v = \u03c0 \u00d7 0,064 \u00d7 18 000\/60 = 60,3 m\/s. P\u0159i t\u00e9to rychlosti je odvalovac\u00ed fr\u00e9za t\u0159\u00eddy DIN 8 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> generuje K_V > 4,0 \u2013 co\u017e znamen\u00e1, \u017ee dynamick\u00e1 s\u00edla v z\u00e1b\u011bru je 4\u00d7 v\u011bt\u0161\u00ed ne\u017e statick\u00e1 p\u0159en\u00e1\u0161en\u00e1 s\u00edla. Nejedn\u00e1 se o 4\u00d7 sn\u00ed\u017een\u00ed \u00fa\u010dinnosti; jedn\u00e1 se o 4\u00d7 zv\u00fd\u0161en\u00ed s\u00edly na zub pou\u017eit\u00e9 p\u0159i v\u00fdpo\u010dtu pevnosti ozuben\u00e9ho kola \u2013 co\u017e vy\u017eaduje, aby ozuben\u00e9 kolo bylo dimenzov\u00e1no, jako by p\u0159en\u00e1\u0161elo 4\u00d7 skute\u010dn\u00fd to\u010div\u00fd moment. Naproti tomu t\u0159\u00edda DIN 4\u20135 s K_V \u2248 1,12 umo\u017e\u0148uje dimenzovat ozuben\u00e9 kolo pouze pro 12% nad statick\u00fdm zat\u00ed\u017een\u00edm \u2013 co\u017e je 3,5n\u00e1sobn\u00e9 sn\u00ed\u017een\u00ed po\u017eadovan\u00e9 velikosti ozuben\u00e9ho kola ve srovn\u00e1n\u00ed s t\u0159\u00eddou DIN 8. Proto EV spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159esn\u00e9 brou\u0161en\u00ed podle DIN t\u0159\u00eddy 4\u20135 nen\u00ed voliteln\u00e9: je to jedin\u00e1 cesta k ozuben\u00e9mu kolu, kter\u00e9 je z\u00e1rove\u0148 dostate\u010dn\u011b lehk\u00e9 a dostate\u010dn\u011b pevn\u00e9.<\/p>\n

Po\u017eadavky na hluk, vibrace a vibrace \u2013 kabina elektromobilu je tich\u00e1 m\u00edstnost<\/h2>\n

\"\u0160roubovit\u00fd<\/p>\n

Reduktor elektromobil\u016f spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> \u2014 P\u0159esn\u011b brou\u0161en\u00e9 b\u0159ity t\u0159\u00eddy DIN 4\u20135 s parabolick\u00fdm odleh\u010den\u00edm hrotu (C_\u03b1 = 5\u201312 \u00b5m) a izotropn\u00edm superfini\u0161ov\u00e1n\u00edm (Ra \u2264 0,05 \u00b5m). Kombinovan\u00fd v\u00fdsledek: chyba p\u0159enosu na rozte\u010dn\u00e9 kru\u017enici pod 2 \u00b5m a p\u0159\u00edsp\u011bvek z\u00e1b\u011bru ozuben\u00fdch kol k hluku v kabin\u011b pod 30 dB(A), co\u017e spl\u0148uje c\u00edle NVH pro vozidlo bez maskov\u00e1n\u00ed hluku spalovac\u00edho motoru<\/p>\n

Pro\u010d je \u0161um a vibrace u elektromobil\u016f t\u011b\u017e\u0161\u00ed ne\u017e \u0161um a vibrace u automobil\u016f s p\u0159evodovkou s vnit\u0159n\u00edm spalov\u00e1n\u00edm<\/h3>\n

Spalovac\u00ed motor (ICE) produkuje v kabin\u011b vozidla p\u0159i rychlosti na d\u00e1lnici \u0161irokop\u00e1smovou hlukovou hladinu p\u0159ibli\u017en\u011b 55\u201370 dB(A), kter\u00e1 maskuje kv\u00edlen\u00ed p\u0159evodovky. Hluk p\u0159evodovky (z \u00d7 ot.\/min. \/ 60) se v hluku ICE ztr\u00e1c\u00ed. V elektromobilu s bateriov\u00fdm pohonem ICE chyb\u00ed: akustick\u00e1 hladina v kabin\u011b p\u0159i rychlosti 100 km\/h kles\u00e1 na 40\u201350 dB(A). Reduktor EV spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> M\u0159\u00ed\u017ekov\u00e1 frekvence \u2013 nap\u0159\u00edklad z\u2081 = 20, 3 600 ot.\/min p\u0159i 100 km\/h \u2192 M\u0159\u00ed\u017ekov\u00e1 frekvence = 1 200 Hz \u2013 je nyn\u00ed jasn\u011b sly\u0161iteln\u00e1 jako t\u00f3nov\u00e9 kv\u00edlen\u00ed o hlu\u010dnosti 45\u201350 dB(A) bez protiopat\u0159en\u00ed na sn\u00ed\u017een\u00ed \u0161umu, vibrac\u00ed a elastom\u00e9r\u016f (NVH). C\u00edlov\u00e9 hodnoty NVH pro p\u0159\u00edsp\u011bvek \u0161umu v p\u0159evodovce u v\u00fdrobc\u016f elektromobil\u016f jsou obvykle pod 30\u201335 dB(A) u ucha \u0159idi\u010de.<\/p>\n

Izotropn\u00ed superfini\u0161ov\u00e1n\u00ed \u2013 v\u00edce ne\u017e jen standardn\u00ed brou\u0161en\u00ed<\/h3>\n

Standardn\u00ed gener\u00e1torov\u00e9 brou\u0161en\u00ed H\u00d6FLER dosahuje Ra = 0,2\u20130,4 \u00b5m na spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> bok zubu. Reduktory pro elektromobily nav\u00edc pou\u017e\u00edvaj\u00ed izotropn\u00ed superfini\u0161ov\u00e1n\u00ed (ISF) \u2013 chemicky urychlen\u00fd vibra\u010dn\u00ed proces dokon\u010dov\u00e1n\u00ed hmoty, kter\u00fd rovnom\u011brn\u011b odstra\u0148uje brousic\u00ed vrcholy ze v\u0161ech orientac\u00ed povrchu a dosahuje Ra = 0,02\u20130,08 \u00b5m bez jak\u00fdchkoli sm\u011brov\u00fdch stop po brou\u0161en\u00ed. V\u00fdhoda NVH: ka\u017ed\u00e9 sn\u00ed\u017een\u00ed Ra o 50% sni\u017euje hluk v z\u00e1b\u011bru ozuben\u00e9ho kola p\u0159ibli\u017en\u011b o 2\u20133 dB(A), proto\u017ee jemn\u011bj\u0161\u00ed povrch zvy\u0161uje pom\u011br filmu EHL \u03bb a sni\u017euje buzen\u00ed drsnost\u00ed kontaktu.<\/p>\n

Standardn\u00ed brou\u0161en\u00e9 spir\u00e1lov\u00e9 ozuben\u00e9 kolo pro elektromobily: Ra = 0,2\u20130,3 \u00b5m \u2192 p\u0159\u00edsp\u011bvek hluku s\u00edt\u011b ~42 dB(A) z\u00e1kladn\u00ed hodnota
\nPo izotropn\u00edm superfini\u0161ov\u00e1n\u00ed: Ra = 0,03\u20130,06 \u00b5m \u2192 p\u0159\u00edsp\u011bvek hluku s\u00edt\u011b ~35\u201338 dB(A) \u2014 typick\u00e9 zlep\u0161en\u00ed o 5\u20137 dB(A)<\/p>\n

\u00da\u010dinnost a dojezd \u2013 na ka\u017ed\u00e9m 0,11 TP3T z\u00e1le\u017e\u00ed<\/h2>\n

Reduktor elektromobil\u016f spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> \u00da\u010dinnost p\u0159\u00edmo ovliv\u0148uje dojezd vozidla. P\u0159i pr\u016fm\u011brn\u00e9m v\u00fdkonu na d\u00e1lnici 60 kW a \u00fa\u010dinnosti reduktoru 98,51 TP3T spot\u0159ebov\u00e1v\u00e1 p\u0159evodovka nep\u0159etr\u017eit\u011b 0,9 kW. Pokud se \u00fa\u010dinnost zlep\u0161\u00ed na 99,01 TP3T, spot\u0159eba klesne na 0,6 kW \u2013 \u00faspora 0,3 kW p\u0159i rychlosti 120 km\/h odpov\u00edd\u00e1 p\u0159ibli\u017en\u011b 1,5 km dojezdu nav\u00edc s bateri\u00ed o kapacit\u011b 75 kWh. Tato citlivost vysv\u011btluje investice odv\u011btv\u00ed elektromobil\u016f do: syntetick\u00e9ho oleje PAO speci\u00e1ln\u011b vyvinut\u00e9ho s aditivy EHL pro n\u00edzkou trakci; izotropn\u00edho superfini\u0161ov\u00e1n\u00ed pro minimalizaci t\u0159en\u00ed drsnosti; a p\u0159esn\u011b kalibrovan\u00e9ho mno\u017estv\u00ed oleje (p\u0159\u00edli\u0161 mnoho oleje zp\u016fsobuje ztr\u00e1ty m\u00edch\u00e1n\u00edm; p\u0159\u00edli\u0161 m\u00e1lo zp\u016fsobuje hladov\u011bn\u00ed).<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
N\u00e1vrhov\u00fd parametr<\/th>\nStandardn\u00ed pr\u016fmyslov\u00e9 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/th>\n\u0160roubovit\u00e9 ozuben\u00e9 kolo reduktoru EV<\/th>\nPro\u010d odli\u0161n\u00e9<\/th>\n<\/tr>\n<\/thead>\n
T\u0159\u00edda p\u0159esnosti zubu<\/td>\nT\u0159\u00edda DIN 6\u20138<\/td>\nT\u0159\u00edda DIN 3\u20135<\/td>\n\u0158\u00edzen\u00ed K_V p\u0159i rychlosti na ose stoup\u00e1n\u00ed 50\u201370 m\/s<\/td>\n<\/tr>\n
Povrchov\u00e1 \u00faprava Ra<\/td>\n0,4\u20130,8 \u00b5m (zem)<\/td>\n0,02\u20130,08 \u00b5m (ISF)<\/td>\nC\u00edlov\u00fd NVH + \u00fa\u010dinnost (kvalita filmu EHL)<\/td>\n<\/tr>\n
Materi\u00e1l<\/td>\n20CrMnTi, 42CrMo<\/td>\n18CrNiMo7-6, 20CrMnTi<\/td>\nVysokocyklov\u00e1 \u00fanava; chladn\u00e9 klima Po\u017eadavek Charpyho<\/td>\n<\/tr>\n
Odleh\u010den\u00ed hrotu C_\u03b1<\/td>\n15\u201330 \u00b5m (obecn\u011b)<\/td>\n5\u201312 \u00b5m (p\u0159esnost)<\/td>\nNVH: nadm\u011brn\u00e9 odleh\u010den\u00ed v bod\u011b rekupera\u010dn\u00edho brzd\u011bn\u00ed sni\u017euje TE<\/td>\n<\/tr>\n
Mazivo<\/td>\nMiner\u00e1ln\u00ed p\u0159evodov\u00fd olej ISO VG 220<\/td>\nN\u00edzkovisk\u00f3zn\u00ed PAO VG 75W-90, p\u0159\u00edsada pro n\u00edzkou trakci specifick\u00e1 pro elektromobily<\/td>\n\u00da\u010dinnost + kompatibilita s izolac\u00ed elektromotoru<\/td>\n<\/tr>\n
Materi\u00e1l pouzdra<\/td>\nLitina<\/td>\nVysokotlak\u00fd lit\u00fd hlin\u00edk (ADC12)<\/td>\nHmotnost: litina \u2248 3\u00d7 t\u011b\u017e\u0161\u00ed na objem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Rekupera\u010dn\u00ed brzd\u011bn\u00ed \u2013 oba boky zub\u016f pod zat\u00ed\u017een\u00edm<\/h2>\n

P\u0159i rekupera\u010dn\u00edm brzd\u011bn\u00ed pracuje motor elektromobilu jako gener\u00e1tor \u2013 to\u010div\u00fd moment kola poh\u00e1n\u00ed motor dozadu, \u010d\u00edm\u017e se to\u010div\u00fd moment obrac\u00ed p\u0159es spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u00e1ru. Tato obr\u00e1cen\u00e1 strana znamen\u00e1 \u201epob\u0159e\u017en\u00ed\u201c k\u0159\u00eddlo spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> (norm\u00e1ln\u011b nezat\u00ed\u017een\u00fd v re\u017eimu pohonu) nyn\u00ed nese pln\u00fd brzdn\u00fd moment. Oba boky mus\u00ed m\u00edt stejnou t\u0159\u00eddu p\u0159esnosti a specifikaci odleh\u010den\u00ed hrotu. Korea Ever-Power specifikuje pro reduktory EV t\u0159\u00eddu tlou\u0161\u0165ky zubu gh (t\u011bsn\u00e1 v\u016fle) dle DIN 3967, co\u017e zaji\u0161\u0165uje, \u017ee obr\u00e1cen\u00ed z hnac\u00edho na voln\u00fd bok je plynul\u00fd p\u0159echod s minim\u00e1ln\u00edm dopadem na malou v\u016fli.<\/p>\n

Korea Ever-Power \u2014 \u0160roubovit\u00e9 p\u0159evodovky pro elektromobily<\/h2>\n

\"V\u00fdrobn\u00ed<\/p>\n

Reduktor pro elektromobily Ever-Power od Koreje spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> v\u00fdroba \u2014 brou\u0161en\u00ed na CNC stroji H\u00d6FLER dle DIN t\u0159\u00eddy 4\u20135 s n\u00e1sledn\u00fdm izotropn\u00edm superfini\u0161ov\u00e1n\u00edm na Ra \u2264 0,06 \u00b5m. Analyz\u00e1tor ozuben\u00fdch kol p\u0159ed odesl\u00e1n\u00edm ov\u011b\u0159\u00ed p\u0159esnost profilu i tlou\u0161\u0165ku zubu, p\u0159i\u010dem\u017e k\u0159ivka TE je uvedena v certifik\u00e1tu.<\/p>\n

Korea Ever-Power vyr\u00e1b\u00ed ozuben\u00e1 kola se \u0161roubovicov\u00fdm \u0159ezem<\/strong> pro jednorychlostn\u00ed a v\u00edcerychlostn\u00ed reduktory EV z cementovan\u00fdch ocel\u00ed 18CrNiMo7-6 a 20CrMnTi, t\u0159\u00edda DIN 3\u20135, Ra \u2264 0,2 \u00b5m z brou\u0161en\u00ed H\u00d6FLER a Ra \u2264 0,06 \u00b5m po ISF. Parabolick\u00e9 odleh\u010den\u00ed hrotu se vypo\u010d\u00edt\u00e1 pro cel\u00fd rozsah zat\u00ed\u017een\u00ed EV (pohon + rekuperace) s kompromisn\u00ed velikost\u00ed, kter\u00e1 minimalizuje TE v nej\u010dast\u011bj\u0161\u00edm provozn\u00edm bod\u011b. Jako p\u0159\u00edm\u00fd v\u00fdrobce \u0161ikm\u00fdch ozuben\u00fdch kol<\/a>Spole\u010dnost Korea Ever-Power poskytuje na certifik\u00e1tu analyz\u00e1toru p\u0159evodovky k\u0159ivku amplitudy buzen\u00ed TE (nam\u011b\u0159en\u00e1 chyba p\u0159enosu vs. \u00fahel nakl\u00e1n\u011bn\u00ed) \u2013 co\u017e umo\u017e\u0148uje simula\u010dn\u00edmu t\u00fdmu NVH v\u00fdrobce origin\u00e1ln\u00edho vybaven\u00ed pou\u017e\u00edt skute\u010dn\u00e9 buzen\u00ed TE nam\u00edsto odhadovan\u00e9 hodnoty dle DIN. Projd\u011bte si sortiment \u0161ikm\u00fdch ozuben\u00fdch kol<\/a> pro elektromobily a vysokorychlostn\u00ed p\u0159esn\u00e9 aplikace.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
Pro\u010d reduktory pro elektromobily pou\u017e\u00edvaj\u00ed pro p\u0159evod 10\u201314:1 jednostup\u0148ov\u00fd spir\u00e1lov\u00fd p\u0159evod m\u00edsto dvoustup\u0148ov\u00e9ho?<\/strong><\/p>\n

Jednostup\u0148ov\u00fd pom\u011br 10\u201314:1 je pro standard limitn\u00ed. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u00e1r bez nadm\u011brn\u00e9ho rizika pod\u0159\u00edznut\u00ed pastorku (obvykle je vy\u017eadov\u00e1no z\u2081 \u2265 16) \u2013 ale je dosa\u017eiteln\u00e9 i jako jednostup\u0148ov\u00e9. Dvoustup\u0148ov\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed by dos\u00e1hlo vy\u0161\u0161\u00ed \u00fa\u010dinnosti na stupe\u0148 (dva stupn\u011b s 99,21 TP3T ka\u017ed\u00fd = 98,41 TP3T dohromady, oproti jednostup\u0148ov\u00e9mu s 98,81 TP3T), ale zvy\u0161uje hmotnost, objem oleje a slo\u017eitost pouzdra. Uspo\u0159\u00e1d\u00e1n\u00ed elektromobilu je extr\u00e9mn\u011b t\u011bsn\u00e9 \u2013 elektrick\u00e1 n\u00e1prava (motor + p\u0159evodovka + diferenci\u00e1l v jedn\u00e9 integrovan\u00e9 jednotce) m\u00e1 c\u00edlovou hmotnost 50\u201390 kg pro hnac\u00ed \u00fastroj\u00ed o v\u00fdkonu 150 kW+. Jednostup\u0148ov\u00e9 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Reduktor je up\u0159ednost\u0148ov\u00e1n, proto\u017ee dvoustup\u0148ov\u00fd p\u0159evod p\u0159id\u00e1v\u00e1 5\u201315 kg a 50\u2013100 mm axi\u00e1ln\u00ed d\u00e9lku, co\u017e je obvykle nep\u0159ijateln\u00e9 u omezen\u00e9ho prostoru zadn\u00ed n\u00e1pravy osobn\u00edho elektromobilu.<\/p>\n<\/div>\n

Lze v reduktoru pro elektromobily pou\u017e\u00edt standardn\u00ed \u0161ikm\u00e9 p\u0159evodovky automobilov\u00fdch p\u0159evodovek?<\/strong><\/p>\n

Standardn\u00ed p\u0159evodovky spalovac\u00edch motor\u016f pracuj\u00ed p\u0159i rychlostech na ose stoup\u00e1n\u00ed 5\u201325 m\/s a obvykle dosahuj\u00ed t\u0159\u00eddy DIN 6\u20137, co\u017e je dostate\u010dn\u00e9 pro regulaci K_V p\u0159i t\u011bchto rychlostech. Reduktor EV \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> mus\u00ed fungovat p\u0159i rychlosti na linii stoup\u00e1n\u00ed 40\u201370 m\/s, kde K_V pro t\u0159\u00eddu DIN 6\u20137 stoupne na 1,5\u20132,0 \u2013 co\u017e je p\u0159ijateln\u00e9 pro p\u0159evodovku se spalovac\u00edm motorem, kter\u00e1 \u0159ad\u00ed pouze pod zat\u00ed\u017een\u00edm po dobu 10 sekund p\u0159i maxim\u00e1ln\u00ed rychlosti, ale ne pro reduktor elektromobilu, kter\u00fd pracuje nep\u0159etr\u017eit\u011b p\u0159i maxim\u00e1ln\u00ed rychlosti b\u011bhem j\u00edzdy na d\u00e1lnici. Standardn\u00ed ozuben\u00e1 kola p\u0159evodovky se spalovac\u00edm motorem opakovan\u011b pou\u017e\u00edvan\u00e1 v elektromobilu tak\u00e9 selh\u00e1vaj\u00ed v oblasti hluku, vibrac\u00ed a vibrac\u00ed (NVH): p\u0159\u00edsn\u011bj\u0161\u00ed c\u00edlovou hodnotu hluku v kabin\u011b elektromobilu (30\u201335 dB(A)) nelze splnit s p\u0159esnost\u00ed DIN 6\u20137 a standardn\u00ed povrchovou \u00fapravou brou\u0161en\u00fdm povrchem.<\/p>\n<\/div>\n

Jak\u00e1 specifikace oleje je spr\u00e1vn\u00e1 pro spir\u00e1lov\u00fd p\u0159evod reduktoru elektromobilu?<\/strong><\/p>\n

Maziva pro reduktory elektromobil\u016f mus\u00ed sou\u010dasn\u011b spl\u0148ovat \u010dty\u0159i vz\u00e1jemn\u011b si odporuj\u00edc\u00ed omezen\u00ed: (1) n\u00edzk\u00e1 viskozita (VG 75W-90 nebo ni\u017e\u0161\u00ed) pro sn\u00ed\u017een\u00ed ztr\u00e1t m\u00edch\u00e1n\u00edm p\u0159i 18 000 ot.\/min; (2) dostate\u010dn\u00e1 tlou\u0161\u0165ka filmu EHL p\u0159i vysok\u00fdch ot\u00e1\u010dk\u00e1ch (z\u00e1kladov\u00fd olej PAO pro n\u00edzk\u00fd koeficient trakce); (3) elektrick\u00e1 izolace (\u017e\u00e1dn\u00e9 iontov\u00e9 nebo kovov\u00e9 p\u0159\u00edsady, kter\u00e9 by zvy\u0161ovaly vodivost \u2013 d\u016fle\u017eit\u00e9, proto\u017ee integrovan\u00fd motor elektrick\u00e9 n\u00e1pravy m\u016f\u017ee propou\u0161t\u011bt n\u00edzko\u00farov\u0148ov\u00fd proud olejem k povrchu ozuben\u00e9ho kola, pokud je vodiv\u00fd); (4) kompatibiln\u00ed se slitinami m\u011bdi v diferenci\u00e1lu. Standardn\u00ed p\u0159evodov\u00e9 oleje GL-5 nespl\u0148uj\u00ed po\u017eadavek (3); standardn\u00ed p\u0159evodov\u00e1 kapalina ATF nespl\u0148uje po\u017eadavek (2). V\u00fdrobci elektromobil\u016f specifikuj\u00ed specializovan\u00e9 kapaliny pro elektrick\u00e9 n\u00e1pravy spl\u0148uj\u00edc\u00ed standardy JASO M369 nebo standardy vlastn\u00edch v\u00fdrobc\u016f, kter\u00e9 spl\u0148uj\u00ed v\u0161echna \u010dty\u0159i omezen\u00ed. Reduktor elektromobil\u016f od Korea Ever-Power \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> jsou navr\u017eeny pro provoz s t\u011bmito specializovan\u00fdmi kapalinami pro elektrick\u00e9 n\u00e1pravy s n\u00edzkou viskozitou a n\u00edzkou trakc\u00ed.<\/p>\n<\/div>\n

Jak\u00e1 je \u00fanavov\u00e1 \u017eivotnost \u0161ikm\u00e9ho ozuben\u00e9ho kola elektromobilu v porovn\u00e1n\u00ed s konven\u010dn\u00edm ozuben\u00fdm kolem p\u0159evodovky se spalovac\u00edm motorem?<\/strong><\/p>\n

P\u0159i rychlosti 100 km\/h m\u00e1 reduktor elektromobilu s p\u0159evodem i = 11,2:1 a z\u2081 = 20 ot\u00e1\u010dky pastorku 3 600 ot\/min a frekvenci z\u00e1b\u011bru 1 200 Hz \u2013 co\u017e znamen\u00e1, \u017ee se b\u011bhem 200 000 km \u017eivotnosti vozidla akumuluje 1 200 \u00d7 3 600 ot\/min \u00d7 100 000 km\/160 km\/h = p\u0159ibli\u017en\u011b 4,5 \u00d7 10\u2079 kontaktn\u00edch cykl\u016f. Jedn\u00e1 se o re\u017eim velmi vysok\u00e9ho po\u010dtu cykl\u016f (VHCF, nad r\u00e1mec referen\u010dn\u00edho po\u010dtu cykl\u016f dle normy ISO 6336, kter\u00fd je 3 \u00d7 10\u2076). Elektromobil spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> mus\u00ed b\u00fdt navr\u017eeno pro mez \u017eivotnosti VHCF (v podstat\u011b ploch\u00e1 \u010d\u00e1st k\u0159ivky SN nad ~10\u2078 cykl\u016f), nikoli pouze pro referen\u010dn\u00ed hodnotu 3 \u00d7 10\u2076 cykl\u016f. U cementovan\u00fdch ozuben\u00fdch kol 18CrNiMo7-6 je hodnota \u03c3_H lim p\u0159i 10\u2079 cyklech p\u0159ibli\u017en\u011b o 5\u201310% ni\u017e\u0161\u00ed ne\u017e referen\u010dn\u00ed hodnota 3 \u00d7 10\u2076 \u2013 co\u017e je m\u00edrn\u00e9 sn\u00ed\u017een\u00ed, kter\u00e9 je pokryto standardn\u00edm faktorem \u017eivotnosti Y_N dle normy ISO 6336. Spole\u010dnost Korea Ever-Power pou\u017e\u00edv\u00e1 korekci Y_N pro celkov\u00fd po\u010det cykl\u016f v aplikaci elektromobil\u016f ve v\u00fdpo\u010dtu dle normy ISO 6336.<\/p>\n

\"d\u00edlna<\/p>\n<\/div>\n

\n

Specifikace spir\u00e1lov\u00e9ho p\u0159evodu reduktoru EV<\/h2>\n

Uve\u010fte maxim\u00e1ln\u00ed ot\u00e1\u010dky motoru, p\u0159evodov\u00fd pom\u011br, v\u00fdstupn\u00ed to\u010div\u00fd moment, c\u00edlovou hodnotu NVH a rozsah balen\u00ed. Korea Ever-Power specifikuje modul, po\u010det zub\u016f, t\u0159\u00eddu DIN, odleh\u010den\u00ed hrotu a po\u017eadavek ISF \u2013 s k\u0159ivkou TE na certifik\u00e1tu analyz\u00e1toru p\u0159evodovky pro vstup simulace NVH.<\/p>\n

Vy\u017e\u00e1dat si specifikaci v\u00fdbavy pro elektromobily<\/a>
\nProduktov\u00e1 \u0159ada \u0161ikm\u00fdch ozuben\u00fdch kol<\/a><\/div>\n

DIN t\u0159\u00edda 3\u20135 \u00b7 ISF Ra \u2264 0,06 \u00b5m \u00b7 TE k\u0159ivka \u00b7 Regenera\u010dn\u00ed boky zub\u016f \u00b7 18CrNiMo7-6 \u00b7 VHCF hodnocen\u00ed \u00b7 Minim\u00e1ln\u00ed objedn\u00e1vac\u00ed mno\u017estv\u00ed 1 kus<\/p>\n<\/div>\n

St\u0159iha\u010d: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u0160roubov\u00e1 ozuben\u00e1 kola pro reduktory pro elektromobily \u2013 vysokorychlostn\u00ed, hlukov\u011b-vibra\u010dn\u00ed a lehk\u00e1 konstrukce \u0160roubov\u00e1 ozuben\u00e1 kola uvnit\u0159 jednorychlostn\u00edho reduktoru pro elektromobily pracuj\u00ed v podm\u00ednk\u00e1ch, se kter\u00fdmi se \u017e\u00e1dn\u00e1 pr\u016fmyslov\u00e1 p\u0159evodovka sou\u010dasn\u011b nesetk\u00e1v\u00e1: vstupn\u00ed ot\u00e1\u010dky 15 000\u201322 000 ot.\/min, c\u00edlov\u00e9 hodnoty hluku a vibrac\u00ed desetkr\u00e1t ni\u017e\u0161\u00ed ne\u017e u ekvivalentn\u00edch pr\u016fmyslov\u00fdch pohon\u016f, hmotnostn\u00ed rozpo\u010det m\u011b\u0159en\u00fd v gramech a po\u017eadavky na \u00fa\u010dinnost, 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\/cs\/wp-json\/wp\/v2\/posts\/2383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/comments?post=2383"}],"version-history":[{"count":2,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2383\/revisions"}],"predecessor-version":[{"id":2385,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2383\/revisions\/2385"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/media?parent=2383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/categories?post=2383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/tags?post=2383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}