{"id":2411,"date":"2026-06-26T05:17:21","date_gmt":"2026-06-26T05:17:21","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2411"},"modified":"2026-06-26T05:17:21","modified_gmt":"2026-06-26T05:17:21","slug":"helical-gear-oil-viscosity-selection-iso-vg-ehl","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/cs\/helical-gear-oil-viscosity-selection-iso-vg-ehl\/","title":{"rendered":"V\u00fdb\u011br viskozity oleje pro \u0161ikm\u00e9 p\u0159evodovky"},"content":{"rendered":"
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V\u00fdb\u011br viskozity oleje pro spir\u00e1lov\u00e9 p\u0159evodovky \u2013 t\u0159\u00edda ISO VG, tlou\u0161\u0165ka filmu EHL a teplota<\/h1>\n

V\u00fdb\u011br spr\u00e1vn\u00e9 viskozity oleje pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159evodovka nen\u00ed jen ot\u00e1zkou v\u00fdb\u011bru \u201estandardn\u00ed\u201c jakosti \u2013 jde o v\u00fdpo\u010det, kter\u00fd vyva\u017euje tlou\u0161\u0165ku filmu EHL pot\u0159ebnou pro specifickou rychlost na \u010d\u00e1\u0159e stoup\u00e1n\u00ed a kontaktn\u00ed nap\u011bt\u00ed oproti visk\u00f3zn\u00edm ztr\u00e1t\u00e1m m\u00edch\u00e1n\u00edm a v\u00fdkonu p\u0159i studen\u00e9m startu p\u0159i minim\u00e1ln\u00ed okoln\u00ed teplot\u011b. Pou\u017eit\u00ed ISO VG 320 tam, kde je spr\u00e1vn\u00e1 hodnota ISO VG 100, nen\u00ed \u201ebezpe\u010dn\u011bj\u0161\u00ed\u201c \u2013 v\u00fdrazn\u011b zvy\u0161uje ztr\u00e1ty m\u00edch\u00e1n\u00edm a m\u016f\u017ee zabr\u00e1nit tvorb\u011b filmu EHL p\u0159i vysok\u00fdch rychlostech, proto\u017ee viskozita oleje v z\u00f3n\u011b s\u00edta kles\u00e1 m\u00e9n\u011b, ne\u017e se o\u010dek\u00e1valo. Tato p\u0159\u00edru\u010dka poskytuje r\u00e1mec pro v\u00fdb\u011br viskozity, kter\u00fd zabra\u0148uje jak nedostate\u010dn\u00e9mu maz\u00e1n\u00ed (d\u016flkov\u00e9 tvorb\u011b), tak nadm\u011brn\u00e9mu maz\u00e1n\u00ed (ztr\u00e1ta m\u00edch\u00e1n\u00edm, hladov\u011bn\u00ed filmu p\u0159i vysok\u00fdch rychlostech).<\/p>\n

Z\u00edskejte doporu\u010den\u00ed pro jakost oleje \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Pro\u010d viskozita ur\u010duje tlou\u0161\u0165ku filmu EHL<\/h2>\n

Film EHL na spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Kontaktn\u00ed z\u00f3na zubu je generov\u00e1na hydrodynamick\u00fdm kl\u00ednov\u00fdm efektem, kdy\u017e se oba povrchy zub\u016f sb\u00edhaj\u00ed na stran\u011b p\u0159ibl\u00ed\u017een\u00ed k s\u00edti. Tlou\u0161\u0165ka filmu h_min je d\u00e1na Dowsonov\u00fdm-Higginsonov\u00fdm vzorcem (zjednodu\u0161en\u00fd liniov\u00fd kontakt):<\/p>\n

h_min \u221d (\u03b7\u2080 \u00d7 v_\u03a3)^0,7 \u00d7 R'^0,46 \/ (E'^0,03 \u00d7 w'^0,13)
\nkde: \u03b7\u2080 = dynamick\u00e1 viskozita p\u0159i vstupn\u00ed teplot\u011b [Pa\u00b7s]
\nv_\u03a3 = sou\u010det rychlost\u00ed = v\u2081 + v\u2082 \u2248 2 \u00d7 v_t (sou\u010det rychlost\u00ed valen\u00ed) [m\/s]
\nR' = ekvivalentn\u00ed polom\u011br zak\u0159iven\u00ed v kontaktu [mm]
\nE' = ekvivalentn\u00ed modul pru\u017enosti \u2248 226 000 N\/mm\u00b2 (ocel-ocel)
\nw' = norm\u00e1ln\u00ed zat\u00ed\u017een\u00ed na jednotku kontaktn\u00ed d\u00e9lky [N\/mm]<\/p>\n

Kl\u00ed\u010dov\u00fd vztah: h_min \u221d \u03b7\u2080^0,7 a h_min \u221d v_t^0,7<\/p>\n

Zdvojn\u00e1soben\u00ed viskozity oleje (p\u0159i stejn\u00e9 teplot\u011b): h_min se zv\u00fd\u0161\u00ed o 2^0,7 = 1,62\u00d7
\nZdvojn\u00e1soben\u00ed rychlosti na linii stoup\u00e1n\u00ed (stejn\u00e1 viskozita): h_min se zv\u00fd\u0161\u00ed o 2^0,7 = 1,62\u00d7<\/p>\n

\u2192 Ob\u011b p\u00e1ky maj\u00ed stejn\u00fd v\u00fdkon 0,7 \u2013 viskozita a rychlost jsou stejn\u011b \u00fa\u010dinn\u00e9
\np\u0159i zvy\u0161ov\u00e1n\u00ed tlou\u0161\u0165ky filmu EHL. Rychlost je v\u0161ak d\u00e1na aplikac\u00ed; viskozita
\nje konstruk\u010dn\u00ed prom\u011bnn\u00e1, kterou in\u017een\u00fdr ovl\u00e1d\u00e1.<\/p>\n

Pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong>, pom\u011br filmu \u03bb = h_min \/ R_q mus\u00ed dos\u00e1hnout \u2265 2,0 pro plnou ochranu EHL. Pro p\u0159esn\u00e9 brou\u0161en\u00ed spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> (Ra \u2248 0,2 \u00b5m) (R_q \u2248 0,25 \u00b5m na bok), kompozitn\u00ed R_q \u2248 \u221a(0,25\u00b2 + 0,25\u00b2) = 0,35 \u00b5m, co\u017e vy\u017eaduje h_min \u2265 0,70 \u00b5m pro \u03bb = 2,0. Stupe\u0148 viskozity je zvolen tak, aby se tohoto filmu dos\u00e1hlo p\u0159i skute\u010dn\u00e9 teplot\u011b s\u00ed\u0165ov\u00e9 z\u00f3ny b\u011bhem norm\u00e1ln\u00edho provozu.<\/p>\n

Vztah mezi viskozitou a teplotou \u2013 Pro\u010d je provozn\u00ed teplota d\u016fle\u017eit\u00e1<\/h2>\n

T\u0159\u00eddy ISO VG jsou definov\u00e1ny p\u0159i 40 \u00b0C. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> S\u00ed\u0165ov\u00e1 z\u00f3na obvykle pracuje p\u0159i teplot\u011b 60\u201380 \u00b0C (objemov\u00e1 teplota s\u00ed\u0165ov\u00e9 z\u00f3ny) a viskozita oleje p\u0159i t\u00e9to teplot\u011b je podstatn\u011b ni\u017e\u0161\u00ed, ne\u017e nazna\u010duje nomin\u00e1ln\u00ed t\u0159\u00edda VG. Viskozita p\u0159i provozn\u00ed teplot\u011b mus\u00ed b\u00fdt vypo\u010d\u00edt\u00e1na pomoc\u00ed modelu viskozita-teplota (ASTM D341 nebo Waltherova rovnice):<\/p>\n

Kinematick\u00fd viskozitn\u00ed pom\u011br (Waltherova rovnice, zjednodu\u0161en\u00e1):
\nlog log(\u03bd + 0,7) = A \u2212 B \u00d7 log(T_abs)
\nkde \u03bd = kinematick\u00e1 viskozita [mm\u00b2\/s = cSt], T_abs = teplota [K]
\nKonstanty A a B jsou aproximov\u00e1ny k viskozit\u011b oleje p\u0159i dvou zn\u00e1m\u00fdch teplot\u00e1ch.<\/p>\n

P\u0159ibli\u017en\u00e1 viskozita miner\u00e1ln\u00edho oleje p\u0159i provozn\u00ed teplot\u011b (VI \u2248 100):
\nISO VG 68 p\u0159i 40 \u00b0C \u2192 cca 15 cSt p\u0159i 80 \u00b0C
\nISO VG 100 p\u0159i 40 \u00b0C \u2192 cca 20 cSt p\u0159i 80 \u00b0C
\nISO VG 150 p\u0159i 40 \u00b0C \u2192 cca 28 cSt p\u0159i 80 \u00b0C
\nISO VG 220 p\u0159i 40 \u00b0C \u2192 cca 38 cSt p\u0159i 80 \u00b0C
\nISO VG 320 p\u0159i 40 \u00b0C \u2192 cca 52 cSt p\u0159i 80 \u00b0C
\nISO VG 460 p\u0159i 40 \u00b0C \u2192 cca 70 cSt p\u0159i 80 \u00b0C
\nISO VG 680 p\u0159i 40 \u00b0C \u2192 cca 98 cSt p\u0159i 80 \u00b0C<\/p>\n

Syntetick\u00fd PAO (VI \u2248 150) si zachov\u00e1v\u00e1 p\u0159ibli\u017en\u011b o 30\u2013401 TP3T vy\u0161\u0161\u00ed viskozitu p\u0159i 80 \u00b0C
\nne\u017e miner\u00e1ln\u00ed olej stejn\u00e9 jakosti ISO VG p\u0159i 40 \u00b0C \u2013 co\u017e je v\u00fdznamn\u00e1 v\u00fdhoda.<\/p>\n

\u010cast\u00e1 chyba specifikace:<\/strong> Specifikace ISO VG 320 pro rychl\u00fd chod spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> (v_t = 20 m\/s) \u201eB\u00fdt v bezpe\u010d\u00ed\u201c je kontraproduktivn\u00ed. P\u0159i teplot\u011b s\u00edta 80 \u00b0C m\u00e1 miner\u00e1ln\u00ed olej VG 320 kinematickou viskozitu p\u0159ibli\u017en\u011b 52 cSt \u2013 co\u017e je dostate\u010dn\u00fd film EHL. Ztr\u00e1ta m\u00edch\u00e1n\u00edm z olejov\u00e9 l\u00e1zn\u011b je v\u0161ak p\u0159i t\u00e9to viskozit\u011b 2\u20133\u00d7 vy\u0161\u0161\u00ed ne\u017e u VG 150. Je\u0161t\u011b d\u016fle\u017eit\u011bj\u0161\u00ed je, \u017ee p\u0159i vysok\u00e9 rychlosti na linii stoup\u00e1n\u00ed mus\u00ed b\u00fdt olej odst\u0159ediv\u011b vrh\u00e1n z bok\u016f zub\u016f p\u0159ed vstupem do s\u00edta \u2013 velmi visk\u00f3zn\u00ed olej, kter\u00fd neodt\u00e9k\u00e1 od \u0161pi\u010dky zubu, vytv\u00e1\u0159\u00ed p\u0159i vstupu do s\u00edta lok\u00e1ln\u00ed nedostatek oleje, co\u017e paradoxn\u011b sni\u017euje film EHL. Spole\u010dnost Korea Ever-Power se \u0159\u00edd\u00ed tabulkou pro v\u00fdb\u011br viskozity AGMA 9005, nikoli klamem \u201ev\u00edce je bezpe\u010dn\u011bj\u0161\u00ed\u201c.<\/div>\n

V\u00fdb\u011br t\u0159\u00eddy ISO VG \u2013 Tabulka rychlosti a teploty na linii rozte\u010de<\/h2>\n

\"\u0158ez<\/p>\n

\u0160roubovit\u00fd v\u00fdstroj<\/strong> p\u0159evodovka s olejovou vanou \u2013 spr\u00e1vn\u00e1 t\u0159\u00edda ISO VG mus\u00ed poskytovat dostate\u010dnou viskozitu p\u0159i provozn\u00ed teplot\u011b v z\u00f3n\u011b s\u00edta (obvykle 60\u201380 \u00b0C u pr\u016fmyslov\u00fdch p\u0159evodovek) k dosa\u017een\u00ed \u03bb \u2265 2,0, p\u0159i\u010dem\u017e mus\u00ed z\u016fstat dostate\u010dn\u011b n\u00edzk\u00e1 p\u0159i minim\u00e1ln\u00ed po\u010d\u00e1te\u010dn\u00ed teplot\u011b okol\u00ed, aby mohla prot\u00e9kat filtrem a dos\u00e1hnout s\u00edta b\u011bhem prvn\u00edch 30\u201360 sekund provozu<\/p>\n

N\u00e1sleduj\u00edc\u00ed tabulka uv\u00e1d\u00ed doporu\u010den\u00ed jakosti ISO VG pro cementovan\u00e9 a brou\u0161en\u00e9 \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> (povrch zubu Ra \u2264 0,3 \u00b5m) p\u0159i teplot\u011b olejov\u00e9 vany 60\u201380 \u00b0C, na z\u00e1klad\u011b AGMA 9005-F16 Tabulka 2 (pr\u016fmyslov\u00e9 uzav\u0159en\u00e9 p\u0159evodov\u00e9 pohony):<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Rychlost na line\u00e1rn\u00ed ose v_t<\/th>\nDoporu\u010den\u00e1 ISO VG (miner\u00e1ln\u00ed CLP)<\/th>\nDoporu\u010den\u00e1 ISO VG (PAO CLP HC)<\/th>\nPozn\u00e1mky<\/th>\n<\/tr>\n<\/thead>\n
< 0,5 m\/s (velmi pomal\u00e9)<\/td>\nVG 680\u20131000<\/td>\nVG 460\u2013680<\/td>\nRe\u017eim mezn\u00edho maz\u00e1n\u00ed; vysok\u00e1 viskozita kompenzuje nedostatek hydrodynamick\u00e9ho filmu. Pou\u017eiteln\u00e9 pro ozuben\u00e1 kola m\u00edcha\u010dek gumy a deskov\u00fdch ml\u00fdn\u016f (\u010dl\u00e1nek 64, \u010dl\u00e1nek 68).<\/td>\n<\/tr>\n
0,5\u20135 m\/s (pomal\u00fd a\u017e st\u0159edn\u00ed)<\/td>\nVG 320\u2013680<\/td>\nVG 220\u2013320<\/td>\nSm\u00ed\u0161en\u00e9 mazivo pro star\u0161\u00ed verze EHL. Zem\u011bd\u011blsk\u00e9 p\u0159evodovky (Art56), je\u0159\u00e1bov\u00e9 kladkostroje (Art70), b\u011b\u017en\u00e9 pr\u016fmyslov\u00e9 p\u0159evodovky M10+.<\/td>\n<\/tr>\n
5\u201315 m\/s (pr\u016fmyslov\u00fd standard)<\/td>\nVG 150\u2013320<\/td>\nVG 100\u2013220<\/td>\nPln\u00e1 EHL na horn\u00ed hranici tohoto rozsahu. V\u011bt\u0161ina uzav\u0159en\u00fdch pr\u016fmyslov\u00fdch spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159evodovky spadaj\u00ed do t\u00e9to kategorie.<\/td>\n<\/tr>\n
15\u201325 m\/s (rychle)<\/td>\nVG 68\u2013150<\/td>\nVG 68\u2013100<\/td>\nPln\u00e9ho EHL lze snadno dos\u00e1hnout; ztr\u00e1ty m\u00edch\u00e1n\u00edm p\u0159i t\u011bchto ot\u00e1\u010dk\u00e1ch prudce stoupaj\u00ed nad VG 220. P\u0159evodovky kompresor\u016f (Art50), pohony velk\u00fdch pr\u016fmyslov\u00fdch ventil\u00e1tor\u016f (Art69).<\/td>\n<\/tr>\n
> 25 m\/s (vysok\u00e1 rychlost)<\/td>\nVG 32\u2013100 (miner\u00e1ln\u00ed okrajov\u00fd)<\/td>\nPreferov\u00e1no VG 32\u201375 PAO<\/td>\nP\u0159i >40 m\/s je siln\u011b preferov\u00e1n PAO \u2013 ni\u017e\u0161\u00ed koeficient trakce a lep\u0161\u00ed index viskozity udr\u017euj\u00ed kvalitu filmu. Reduktory EV (Art62), zvy\u0161ova\u010de ot\u00e1\u010dek turb\u00edny (Art69).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Kategorie maziv pro p\u0159evodovky dle normy ISO 6743-6 \u2013 Kter\u00fd typ pro \u0161ikm\u00e1 ozuben\u00e1 kola?<\/h2>\n

Norma ISO 6743-6 klasifikuje p\u0159evodov\u00e1 maziva podle typu z\u00e1kladov\u00e9ho oleje a p\u0159\u00edsad. V\u00fdb\u011br spr\u00e1vn\u00e9 kategorie je stejn\u011b d\u016fle\u017eit\u00fd jako v\u00fdb\u011br spr\u00e1vn\u00e9 t\u0159\u00eddy ISO VG \u2013 nespr\u00e1vn\u00e1 kategorie se spr\u00e1vnou viskozitou st\u00e1le nedostate\u010dn\u011b chr\u00e1n\u00ed:<\/p>\n

\n
CLP \u2014 Miner\u00e1ln\u00ed p\u0159evodov\u00fd olej EP<\/strong><\/p>\n

Standardn\u00ed miner\u00e1ln\u00ed z\u00e1kladov\u00fd olej s p\u0159\u00edsadou pro extr\u00e9mn\u00ed tlak na b\u00e1zi s\u00edry a fosforu (S\/P). Vhodn\u00fd pro v\u011bt\u0161inu pr\u016fmyslov\u00fdch spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pohony p\u0159i v_t = 1\u201320 m\/s. Stupe\u0148 mikropittingu FVA MLS 6\u20138. Interval v\u00fdm\u011bny: 3 000\u20138 000 hodin v z\u00e1vislosti na sledov\u00e1n\u00ed stavu. Nejv\u00fdhodn\u011bj\u0161\u00ed volba pro standardn\u00ed p\u0159evodovky.<\/p>\n<\/div>\n

CLP HC \u2014 hydrokrakovan\u00fd miner\u00e1l<\/strong><\/p>\n

Hydrokrakovan\u00fd z\u00e1kladov\u00fd olej skupiny III se zlep\u0161enou oxida\u010dn\u00ed stabilitou a m\u00edrn\u011b vy\u0161\u0161\u00edm viskozitn\u00edm indexem (VI) (\u2248 120) ne\u017e konven\u010dn\u00ed CLP. 20\u201330% del\u0161\u00ed \u017eivotnost ne\u017e CLP. Doporu\u010deno pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u0159evodovky p\u0159i vy\u0161\u0161\u00ed okoln\u00ed teplot\u011b nebo prodlou\u017een\u00fdch servisn\u00edch intervalech. Stupe\u0148 mikropittingu FVA MLS 8\u201310. Lep\u0161\u00ed volba pro hlavn\u00ed p\u0159evodovky v\u011btrn\u00fdch turb\u00edn a p\u0159evodovky pro offshore aplikace.<\/p>\n<\/div>\n

CLP PAO \u2014 Syntetick\u00fd polyalfaolefin<\/strong><\/p>\n

Syntetick\u00fd z\u00e1kladov\u00fd olej PAO skupiny IV; VI \u2248 150. Nejlep\u0161\u00ed v\u00fdkon p\u0159i vysok\u00fdch ot\u00e1\u010dk\u00e1ch (ni\u017e\u0161\u00ed sou\u010dinitel trakce \u2192 vy\u0161\u0161\u00ed \u00fa\u010dinnost), nejlep\u0161\u00ed tekutost za n\u00edzk\u00fdch teplot, nejdel\u0161\u00ed \u017eivotnost (5 000\u201312 000 hodin). Vhodn\u00fd pro reduktory EV, spir\u00e1lov\u00e9 pohony BFP a jak\u00e9koli jin\u00e9... spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> aplikace, kde je energetick\u00e1 \u00fa\u010dinnost monetizov\u00e1na. P\u0159ibli\u017en\u011b 2\u20133\u00d7 dra\u017e\u0161\u00ed na litr ne\u017e miner\u00e1ln\u00ed CLP.<\/p>\n<\/div>\n

CLP PG \u2014 Polyglykol<\/strong><\/p>\n

NEDOPORU\u010cUJE SE pro standardn\u00ed \u0161ikm\u00e1 ozuben\u00e1 kola.<\/strong> Polyglykolov\u00fd z\u00e1kladov\u00fd olej je vynikaj\u00edc\u00ed pro \u0161nekov\u00e9 p\u0159evody (velmi n\u00edzk\u00fd koeficient trakce na kontaktech bronz-ocel), ale napad\u00e1 nitrilkau\u010dukov\u00e1 t\u011bsn\u011bn\u00ed a emulguje s vodou snadn\u011bji ne\u017e PAO. V\u00fdjimkou jsou speci\u00e1ln\u00ed aplikace se \u0161nekov\u00fdmi p\u0159evody...spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> kombinovan\u00e9 p\u0159evodovky, kde m\u00e1 prioritu \u0161nekov\u00fd stupe\u0148, nebo pohony s nerezovou h\u0159\u00eddel\u00ed, kde se nepou\u017e\u00edvaj\u00ed nitrilov\u00e1 t\u011bsn\u011bn\u00ed.<\/p>\n<\/div>\n<\/div>\n

Miner\u00e1l vs. PAO \u2013 Kdy se upgrade vyplat\u00ed?<\/h2>\n

P\u0159echod z miner\u00e1ln\u00ed CLP na CLP PAO pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pohon p\u0159in\u00e1\u0161\u00ed t\u0159i v\u00fdhody: \u00fa\u010dinnost (sn\u00ed\u017een\u00ed v\u00ed\u0159en\u00ed a t\u0159en\u00ed v z\u00e1b\u011bru \u2192 ni\u017e\u0161\u00ed n\u00e1klady na energii), del\u0161\u00ed \u017eivotnost oleje (zkr\u00e1cen\u00fd interval \u00fadr\u017eby a prostoje) a lep\u0161\u00ed ochranu p\u0159i extr\u00e9mn\u00edch teplot\u00e1ch. Zda se modernizace vyplat\u00ed, z\u00e1vis\u00ed na provozn\u00edm profilu:<\/p>\n

V\u00fdpo\u010det n\u00e1vratnosti \u00fa\u010dinnosti (p\u0159\u00edklad: 75 kW) spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> pohon, CLP 220 \u2192 PAO 220):
\nZlep\u0161en\u00ed \u00fa\u010dinnosti: p\u0159ibli\u017en\u011b 0,5\u20131,0% (sn\u00ed\u017een\u00ed ztr\u00e1t zp\u016fsoben\u00fdch m\u00edch\u00e1n\u00edm + m\u00edch\u00e1n\u00edm)
\nRo\u010dn\u00ed \u00faspora energie: 75 kW \u00d7 0,007 \u00d7 8 000 h\/rok = 4 200 kWh\/rok
\nP\u0159i cen\u011b 0,12 USD\/kWh: \u00faspora energie 504 USD\/rok na pohon<\/p>\n

N\u00e1vratnost oleje za dobu jeho \u017eivotnosti:
\nMiner\u00e1ln\u00ed olej CLP 220: v\u00fdm\u011bna oleje ka\u017ed\u00fdch 3 000 hodin \u2192 2,7 v\u00fdm\u011bny\/rok po dobu 8 000 hodin\/rok
\nCLP PAO 220: v\u00fdm\u011bna oleje ka\u017ed\u00fdch 8 000 hodin \u2192 1 v\u00fdm\u011bna\/rok
\nRo\u010dn\u00ed \u00faspora objemu oleje: 1,7 v\u00fdm\u011bny \u00d7 objem oleje = zna\u010dn\u00e9 u velk\u00fdch p\u0159evodovek<\/p>\n

Bod zvratu: Cena PAO obvykle \u010din\u00ed 2\u20133\u00d7 v\u00edce ne\u017e miner\u00e1ln\u00ed CLP na litr. Pro p\u0159evodovku o objemu 100 litr\u016f:
\nPr\u00e9mie PAO za jedno napln\u011bn\u00ed: 300 USD; \u00faspora energie: 504 USD\/rok \u2192 n\u00e1vratnost < 1 rok.
\nPro pohony provozovan\u00e9 <2 000 hodin\/rok nebo s mal\u00fdm objemem oleje je miner\u00e1ln\u00ed olej CLP cenov\u011b v\u00fdhodn\u011bj\u0161\u00ed.<\/p>\n

Viskozita p\u0159i studen\u00e9m startu \u2013 po\u017eadavek na minim\u00e1ln\u00ed okoln\u00ed teplotu<\/h2>\n

A spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159evodovka se nesm\u00ed nikdy spou\u0161t\u011bt s pln\u00fdm zat\u00ed\u017een\u00edm, dokud olej nevyte\u010de z olejov\u00e9 vany do z\u00e1b\u011bru ozuben\u00fdch kol a lo\u017eisek. P\u0159i velmi n\u00edzk\u00fdch okoln\u00edch teplot\u00e1ch m\u016f\u017ee miner\u00e1ln\u00ed olej s vysokou viskozitou zgelovat\u011bt nebo t\u00e9ct tak pomalu, \u017ee prvn\u00edch 30\u201360 sekund provozu prob\u00edh\u00e1 bez dostate\u010dn\u00e9ho maz\u00e1n\u00ed. Minim\u00e1ln\u00ed okoln\u00ed teplota pro start s pln\u00fdm zat\u00ed\u017een\u00edm bez p\u0159edeh\u0159evu:<\/p>\n

Bod tuhnut\u00ed a minim\u00e1ln\u00ed teploty spou\u0161t\u011bn\u00ed miner\u00e1ln\u00edho p\u0159evodov\u00e9ho oleje CLP (p\u0159ibli\u017en\u00e9):
\nVG 220 CLP miner\u00e1ln\u00ed: bod tuhnut\u00ed \u2248 \u221215 \u00b0C; minim\u00e1ln\u00ed rozb\u011bh p\u0159i pln\u00e9m zat\u00ed\u017een\u00ed \u2248 \u22125 \u00b0C
\nVG 320 CLP miner\u00e1ln\u00ed: bod tuhnut\u00ed \u2248 \u221212 \u00b0C; minim\u00e1ln\u00ed teplota p\u0159i pln\u00e9m zat\u00ed\u017een\u00ed \u2248 0 \u00b0C
\nVG 680 CLP miner\u00e1ln\u00ed: bod tuhnut\u00ed \u2248 \u22129 \u00b0C; minim\u00e1ln\u00ed rozb\u011bh p\u0159i pln\u00e9m zat\u00ed\u017een\u00ed \u2248 +5 \u00b0C
\nVG 220 PAO: bod tuhnut\u00ed \u2248 \u221245 \u00b0C; minim\u00e1ln\u00ed bod startu p\u0159i pln\u00e9m zat\u00ed\u017een\u00ed \u2248 \u221230 \u00b0C
\nVG 320 PAO: bod tuhnut\u00ed \u2248 \u221242 \u00b0C; minim\u00e1ln\u00ed bod startu p\u0159i pln\u00e9m zat\u00ed\u017een\u00ed \u2248 \u221225 \u00b0C<\/p>\n

Pro p\u0159evodovky v chladn\u00e9m podneb\u00ed (korejsk\u00e1 zima, sibi\u0159sk\u00e9 instalace, arktick\u00e9 pob\u0159e\u017e\u00ed):
\nSyntetick\u00fd olej PAO je \u010dasto jedinou mo\u017enost\u00ed viskozitn\u00edho stupn\u011b, kter\u00e1 se vyhne po\u017eadavk\u016fm na oh\u0159ev oleje.<\/p>\n

Korea Ever-Power \u2013 Doporu\u010den\u00ed ohledn\u011b viskozity oleje s objedn\u00e1vkami p\u0159evodovek<\/h2>\n

\"V\u00fdroba<\/p>\n

Pro v\u00fdpo\u010det kompozitn\u00edho R_q a po\u017eadovan\u00e9ho h_min pro \u03bb = 2,0 se pou\u017e\u00edv\u00e1 hodnota Ra povrchu zubu z v\u00fdrobn\u00edho ozuben\u00e9ho kola nam\u011b\u0159en\u00e1 spole\u010dnost\u00ed Korea Ever-Power, kter\u00e1 se pou\u017e\u00edv\u00e1 k v\u00fdpo\u010dtu kompozitn\u00edho R_q a po\u017eadovan\u00e9ho h_min pro \u03bb = 2,0 \u2013 co\u017e p\u0159\u00edmo ur\u010duje minim\u00e1ln\u00ed t\u0159\u00eddu ISO VG pot\u0159ebnou p\u0159i specifikovan\u00e9 provozn\u00ed teplot\u011b pro dan\u00fd materi\u00e1l. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> instalace<\/p>\n

Spole\u010dnost Korea Ever-Power poskytuje doporu\u010denou jakost ISO VG (a minim\u00e1ln\u00ed v\u00fdpo\u010det \u03bb = h_min\/R_q, kter\u00fd ji od\u016fvod\u0148uje) u ka\u017ed\u00e9ho ozuben\u00e9 kolo se spir\u00e1lov\u00fdm \u0159ezem<\/strong> objedn\u00e1vka \u2013 s pou\u017eit\u00edm skute\u010dn\u011b nam\u011b\u0159en\u00e9 plochy zubu Ra z v\u00fdrobn\u00edho ozuben\u00e9ho kola, nikoli hodnoty p\u0159edpokl\u00e1dan\u00e9 t\u0159\u00eddou. Doporu\u010den\u00ed pro olej zahrnuje minim\u00e1ln\u00ed po\u010d\u00e1te\u010dn\u00ed teplotu okol\u00ed pro dan\u00fd stupe\u0148 a indikuje, zda je pro provoz v chladn\u00e9m podneb\u00ed pot\u0159ebn\u00fd syntetick\u00fd olej PAO. Jako p\u0159\u00edm\u00fd v\u00fdrobce \u0161ikm\u00fdch ozuben\u00fdch kol<\/a>Spole\u010dnost Korea Ever-Power porovn\u00e1v\u00e1 doporu\u010denou viskozitu oleje s rychlost\u00ed na ose stoup\u00e1n\u00ed ozuben\u00e9ho kola a v\u00fdpo\u010dtem ztr\u00e1t m\u00edch\u00e1n\u00edm \u2013 doporu\u010duje ni\u017e\u0161\u00ed stupe\u0148 viskozity, pokud z\u00e1kazn\u00edk specifikoval zbyte\u010dn\u011b vysokou viskozitu (VG), kter\u00e1 by sn\u00ed\u017eila \u00fa\u010dinnost bez zlep\u0161en\u00ed pom\u011bru \u03bb. Projd\u011bte si sortiment \u0161ikm\u00fdch ozuben\u00fdch kol<\/a>.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
M\u016f\u017ee p\u0159evodovka se \u0161ikm\u00fdm ozuben\u00fdm kolem b\u011b\u017eet se stejn\u00fdm druhem oleje, pokud se provozn\u00ed ot\u00e1\u010dky zm\u011bn\u00ed v\u00fdm\u011bnou motoru?<\/strong><\/p>\n

Ne nutn\u011b. Pokud je motor vym\u011bn\u011bn za rychlej\u0161\u00ed chod (s vy\u0161\u0161\u00ed rychlost\u00ed na \u010d\u00e1\u0159e stoup\u00e1n\u00ed), m\u016f\u017ee st\u00e1vaj\u00edc\u00ed olej s vysokou viskozitou zp\u016fsobit nadm\u011brn\u00e9 ztr\u00e1ty m\u00edch\u00e1n\u00edm a vysokou teplotu oleje. Pokud je motor vym\u011bn\u011bn za pomalej\u0161\u00ed chod, m\u016f\u017ee b\u00fdt p\u016fvodn\u00ed viskozita p\u0159\u00edli\u0161 n\u00edzk\u00e1 pro vytvo\u0159en\u00ed dostate\u010dn\u00e9ho filmu EHL p\u0159i sn\u00ed\u017een\u00e9 rychlosti na \u010d\u00e1\u0159e stoup\u00e1n\u00ed. Pokud je rychlost st\u00e1vaj\u00edc\u00edho oleje... spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pokud se ot\u00e1\u010dky p\u0159evodovky zm\u011bn\u00ed o v\u00edce ne\u017e \u00b130%, je t\u0159eba p\u0159epo\u010d\u00edtat viskozitn\u00ed stupe\u0148 oleje p\u0159i nov\u00fdch provozn\u00edch ot\u00e1\u010dk\u00e1ch, aby se potvrdilo, \u017ee \u03bb z\u016fst\u00e1v\u00e1 nad 2,0. Spole\u010dnost Korea Ever-Power poskytuje tento p\u0159epo\u010det pro v\u0161echny spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> pohon, u kter\u00e9ho do\u0161lo ke zm\u011bn\u011b ot\u00e1\u010dek \u2013 v\u00fdpo\u010det bere jako vstupy skute\u010dnou geometrii ozuben\u00e9ho kola (modul, \u0161\u00ed\u0159ku \u010dela, pr\u016fm\u011br rozte\u010de) a nov\u00e9 ot\u00e1\u010dky.<\/p>\n<\/div>\n

Je nutn\u00e9 pou\u017e\u00edvat stejnou jakost oleje pro vstupn\u00ed vysokorychlostn\u00ed h\u0159\u00eddel i v\u00fdstupn\u00ed n\u00edzkorychlostn\u00ed h\u0159\u00eddel ve v\u00edcestup\u0148ov\u00e9 spir\u00e1lov\u00e9 p\u0159evodovce?<\/strong><\/p>\n

Ve sd\u00edlen\u00e9 j\u00edmce spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> V p\u0159evodovce (nejb\u011b\u017en\u011bj\u0161\u00ed uspo\u0159\u00e1d\u00e1n\u00ed) sd\u00edlej\u00ed v\u0161echny stupn\u011b stejn\u00fd olej \u2013 kompromis mezi ide\u00e1ln\u00ed viskozitou pro vysokorychlostn\u00ed prvn\u00ed stupe\u0148 (ni\u017e\u0161\u00ed VG) a ide\u00e1ln\u00ed viskozitou pro n\u00edzkorychlostn\u00ed posledn\u00ed stupe\u0148 (vy\u0161\u0161\u00ed VG). Standardn\u00ed p\u0159\u00edstup spo\u010d\u00edv\u00e1 ve v\u00fdb\u011bru viskozity oleje pro nejkriti\u010dt\u011bj\u0161\u00ed stupe\u0148 (obvykle stupe\u0148 s nejvy\u0161\u0161\u00ed rychlost\u00ed na \u010d\u00e1\u0159e stoup\u00e1n\u00ed, kde je ztr\u00e1ta m\u00edch\u00e1n\u00edm nejcitliv\u011bj\u0161\u00ed na viskozitu) a akceptov\u00e1n\u00ed m\u00edrn\u011b suboptim\u00e1ln\u00ed hodnoty \u03bb u pomalej\u0161\u00edch stup\u0148\u016f \u2013 kter\u00e9 obvykle nejsou kritick\u00e9, proto\u017ee jejich ni\u017e\u0161\u00ed rychlost na \u010d\u00e1\u0159e stoup\u00e1n\u00ed znamen\u00e1, \u017ee film EHL je ji\u017e siln\u00fd. U p\u0159evodovek, kde pom\u011br ot\u00e1\u010dek mezi prvn\u00edm a posledn\u00edm stupn\u011bm p\u0159esahuje 10:1 (pom\u011br v_t p\u0159esahuje 10:1), se vyplat\u00ed zv\u00e1\u017eit samostatn\u00e9 olejov\u00e9 komory pro ka\u017ed\u00fd stupe\u0148 \u2013 ka\u017ed\u00e1 s vlastn\u00edm optimalizovan\u00fdm druhem oleje \u2013 aby se zabr\u00e1nilo jak nadm\u011brn\u00e9mu maz\u00e1n\u00ed ve vysokorychlostn\u00edm stupni, tak i nedostate\u010dn\u00e9mu maz\u00e1n\u00ed v n\u00edzkorychlostn\u00edm stupni.<\/p>\n<\/div>\n

Ovliv\u0148uje velikost modulu po\u017eadavek na viskozitu oleje pro \u0161ikm\u00e9 ozuben\u00e9 kolo?<\/strong><\/p>\n

Ano, nep\u0159\u00edmo \u2013 prost\u0159ednictv\u00edm dvou mechanism\u016f. V\u011bt\u0161\u00ed modul spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> m\u00e1 v\u011bt\u0161\u00ed ekvivalentn\u00ed kontaktn\u00ed polom\u011br R', co\u017e zvy\u0161uje h_min p\u0159i stejn\u00e9 viskozit\u011b a rychlosti (h_min \u221d R'^0,46). To znamen\u00e1 velk\u00fd modul \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> m\u016f\u017ee dos\u00e1hnout stejn\u00e9ho c\u00edle \u03bb = 2,0 s ni\u017e\u0161\u00ed viskozitou ne\u017e ozuben\u00e1 kola s mal\u00fdm modulem p\u0159i stejn\u00e9 rychlosti na ose stoup\u00e1n\u00ed. Ozuben\u00e1 kola s velk\u00fdm modulem v\u0161ak \u010dasto b\u011b\u017e\u00ed p\u0159i ni\u017e\u0161\u00edch rychlostech na ose stoup\u00e1n\u00ed \u2013 co\u017e tuto v\u00fdhodu \u010d\u00e1ste\u010dn\u011b kompenzuje. \u010cist\u00fd efekt: u ozuben\u00fdch kol s velmi velk\u00fdm modulem (M20+) b\u011b\u017e\u00edc\u00edch n\u00edzk\u00fdmi rychlostmi (0,5\u20133 m\/s) je kombinace velk\u00e9ho R' a n\u00edzk\u00e9 rychlosti margin\u00e1ln\u00ed i u olej\u016f s velmi vysokou viskozitou \u2013 a proto se mezn\u00ed maz\u00e1n\u00ed EP st\u00e1v\u00e1 pro ozuben\u00e1 kola s velk\u00fdm modulem kritick\u00fdm \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong>.<\/p>\n<\/div>\n

Pro\u010d se polyglykolov\u00fd (CLP PG) olej nedoporu\u010duje pro pohony se \u0161ikm\u00fdmi ozuben\u00fdmi koly?<\/strong><\/p>\n

Polyglykolov\u00e9 oleje jsou nekompatibiln\u00ed s t\u011bsn\u011bn\u00edmi NBR pou\u017e\u00edvan\u00fdmi prakticky ve v\u0161ech pr\u016fmyslov\u00fdch spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u0159evodovky. Olej CLP PG bobtn\u00e1 a degraduje t\u011bsn\u011bn\u00ed NBR b\u011bhem n\u011bkolika t\u00fddn\u016f po vystaven\u00ed vlivu oleje, co\u017e zp\u016fsobuje \u00faniky oleje, kter\u00e9 kontaminuj\u00ed \u017eivotn\u00ed prost\u0159ed\u00ed a vedou k nedostatku oleje v p\u0159evodov\u00e9m pohonu. Druh\u00fdm probl\u00e9mem je emulgace vody: CLP PG absorbuje vodu a vytv\u00e1\u0159\u00ed stabiln\u00ed emulzi, kterou je obt\u00ed\u017en\u00e9 odstranit odd\u011blen\u00edm vody \u2013 emulgovan\u00e1 voda pak zp\u016fsobuje rez uvnit\u0159 sk\u0159\u00edn\u011b p\u0159evodovky a na boc\u00edch zub\u016f spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong>CLP PG je spr\u00e1vn\u00e9 mazivo pro \u0161nekov\u00e9 p\u0159evodovky (kde je n\u00edzk\u00fd sou\u010dinitel trakce PG na bronzu jedine\u010dn\u011b v\u00fdhodn\u00fd) \u2013 ale pro jak\u00fdkoli pohon s spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> f\u00e1zi je preferovanou vysoce v\u00fdkonnou syntetickou kapalinou CLP PAO, nikoli CLP PG.<\/p>\n<\/div>\n

\n

Doporu\u010den\u00ed t\u0159\u00eddy ISO VG pro ka\u017edou objedn\u00e1vku \u0161ikm\u00e9ho ozuben\u00e9ho kola<\/h2>\n

Spole\u010dnost Korea Ever-Power vypo\u010d\u00edt\u00e1v\u00e1 \u03bb = h_min \/ R_q p\u0159i nam\u011b\u0159en\u00e9 rychlosti Ra a skute\u010dn\u00e9 rychlosti na ose stoup\u00e1n\u00ed a pot\u00e9 v dokumentaci objedn\u00e1vky standardn\u011b doporu\u010duje minim\u00e1ln\u00ed t\u0159\u00eddu ISO VG a kategorii oleje (CLP \/ CLP HC \/ CLP PAO) \u2013 s minim\u00e1ln\u00ed po\u010d\u00e1te\u010dn\u00ed teplotou a intervalem v\u00fdm\u011bny oleje. Nen\u00ed vy\u017eadov\u00e1n \u017e\u00e1dn\u00fd samostatn\u00fd n\u00e1vrh maziva.<\/p>\n

\u017d\u00e1dost o doporu\u010den\u00ed ohledn\u011b viskozity oleje<\/a>
\nProduktov\u00e1 \u0159ada \u0161ikm\u00fdch ozuben\u00fdch kol<\/a><\/div>\n

V\u00fdpo\u010det \u03bb = h_min \/ R_q \u00b7 V\u00fdb\u011br t\u0159\u00eddy ISO VG \u00b7 Doporu\u010den\u00ed CLP \/ CLP HC \/ CLP PAO \u00b7 Teplota pro studen\u00fd start \u00b7 Servisn\u00ed interval \u00b7 Standardn\u00ed zahrnut\u00ed<\/p>\n<\/div>\n

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

V\u00fdb\u011br viskozity oleje pro \u0161ikm\u00e9 p\u0159evodovky \u2013 t\u0159\u00edda ISO VG, tlou\u0161\u0165ka filmu EHL a teplota V\u00fdb\u011br spr\u00e1vn\u00e9 viskozity oleje pro \u0161ikmou p\u0159evodovku nen\u00ed jen ot\u00e1zkou v\u00fdb\u011bru \u201estandardn\u00ed\u201c t\u0159\u00eddy \u2013 jde o v\u00fdpo\u010det, kter\u00fd vyva\u017euje tlou\u0161\u0165ku filmu EHL pot\u0159ebnou pro specifickou rychlost na ose stoup\u00e1n\u00ed a kontaktn\u00ed nap\u011bt\u00ed oproti [\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-2411","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2411","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=2411"}],"version-history":[{"count":2,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2411\/revisions"}],"predecessor-version":[{"id":2414,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2411\/revisions\/2414"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/media?parent=2411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/categories?post=2411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/tags?post=2411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}