{"id":2318,"date":"2026-06-24T02:35:58","date_gmt":"2026-06-24T02:35:58","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2318"},"modified":"2026-06-24T02:35:58","modified_gmt":"2026-06-24T02:35:58","slug":"helical-gear-thermal-rating-cooling","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/cs\/helical-gear-thermal-rating-cooling\/","title":{"rendered":"Tepeln\u00e9 zat\u00ed\u017een\u00ed \u0161ikm\u00e9ho ozuben\u00e9ho kola \u2013 v\u00fdpo\u010det ztr\u00e1t v\u00fdkonu, po\u017eadavky na v\u00fdrobu tepla a chlazen\u00ed"},"content":{"rendered":"
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Tepeln\u00e9 hodnocen\u00ed spir\u00e1lov\u00e9ho ozuben\u00e9ho kola \u2013 ztr\u00e1ty v\u00fdkonu, generov\u00e1n\u00ed tepla a po\u017eadavky na chlazen\u00ed<\/h1>\n

\u0160roubov\u00fd ozuben\u00fd pohon o v\u00fdkonu 200 kW s \u00fa\u010dinnost\u00ed 98% generuje 4 kW tepla \u2013 co\u017e odpov\u00edd\u00e1 \u010dty\u0159em 1kW topn\u00fdm t\u011bles\u016fm, kter\u00e1 nep\u0159etr\u017eit\u011b b\u011b\u017e\u00ed uvnit\u0159 sk\u0159\u00edn\u011b p\u0159evodovky. Pokud povrch sk\u0159\u00edn\u011b nedok\u00e1\u017ee toto teplo odv\u00e9st dostate\u010dn\u011b rychle, aby udr\u017eel teplotu oleje pod 90 \u00b0C, olej oxiduje, ztr\u00e1c\u00ed viskozitu a film EHL se hrout\u00ed. Tepeln\u00e1 odolnost \u2013 v\u00fdpo\u010det generovan\u00e9ho tepla, kapacity rozptylu sk\u0159\u00edn\u011b a po\u017eadavk\u016f na chlazen\u00ed \u2013 je kontrolou, kter\u00e1 tomuto re\u017eimu selh\u00e1n\u00ed p\u0159edch\u00e1z\u00ed.<\/p>\n

Vy\u017e\u00e1dejte si tepeln\u00e9 hodnocen\u00ed pro va\u0161e vybaven\u00ed \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Zdroje ztr\u00e1ty v\u00fdkonu v pohonu se \u0161ikm\u00fdm ozuben\u00fdm kolem<\/h2>\n

Celkov\u00e1 ztr\u00e1ta v\u00fdkonu v spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pohon m\u00e1 \u010dty\u0159i nez\u00e1visl\u00e9 komponenty. Pochopen\u00ed toho, kter\u00e1 z nich v konkr\u00e9tn\u00ed aplikaci dominuje, ur\u010duje nej\u00fa\u010dinn\u011bj\u0161\u00ed p\u0159\u00edstup ke zlep\u0161en\u00ed \u00fa\u010dinnosti nebo specifikaci chladic\u00edho syst\u00e9mu:<\/p>\n

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Ztr\u00e1ta v s\u00edti z\u00e1visl\u00e1 na zat\u00ed\u017een\u00ed (P_VZP)<\/strong><\/p>\n

T\u0159en\u00ed v m\u00edst\u011b kontaktu zub\u016f pod EHL filmem. Sou\u010dinitel t\u0159en\u00ed \u00b5 \u2248 0,04\u20130,06 pro brou\u0161en\u00fd povrch \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> s ISO VG 100\u2013220 p\u0159i provozn\u00ed teplot\u011b. \u00dam\u011brn\u00e9 p\u0159en\u00e1\u0161en\u00e9mu to\u010div\u00e9mu momentu \u2013 stoup\u00e1 a kles\u00e1 se zat\u00ed\u017een\u00edm. Toto je dominantn\u00ed ztr\u00e1ta u pohon\u016f s n\u00edzkou a\u017e st\u0159edn\u00ed rychlost\u00ed pod rychlost\u00ed na ose stoup\u00e1n\u00ed 10 m\/s.<\/p>\n<\/div>\n

Ztr\u00e1ta s\u00edt\u011b bez zat\u00ed\u017een\u00ed (P_VZO)<\/strong><\/p>\n

Visk\u00f3zn\u00ed v\u00ed\u0159en\u00ed oleje v z\u00f3n\u011b z\u00e1b\u011bru zub\u016f, nez\u00e1visl\u00e9 na zat\u00ed\u017een\u00ed. \u00dam\u011brn\u00e9 viskozit\u011b oleje a druh\u00e9 mocnin\u011b rychlosti na ose zub\u016f (P_VZO \u221d v\u00b2). Dominuje u vysokorychlostn\u00edch, lehce zat\u00ed\u017een\u00fdch pohon\u016f nad 20 m\/s. D\u016fvod, pro\u010d je nutn\u00e1 p\u0159esnost p\u0159i vysok\u00fdch rychlostech. \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> Pou\u017eijte ISO VG 68\u2013100 m\u00edsto VG 320.<\/p>\n<\/div>\n

Ztr\u00e1ty v lo\u017eisku (P_VL)<\/strong><\/p>\n

Valiv\u00e9 a kluzn\u00e9 t\u0159en\u00ed v lo\u017eisk\u00e1ch h\u0159\u00eddele. Typicky 0,1\u20130,31 TP3T p\u0159en\u00e1\u0161en\u00e9ho v\u00fdkonu na lo\u017eisko u standardn\u00edch plasticky mazan\u00fdch lo\u017eisek s koso\u00fahl\u00fdm stykem nebo ku\u017eel\u00edkov\u00fdch lo\u017eisek. Pro dvoustup\u0148ovou p\u0159evodovku se 4 lo\u017eisky h\u0159\u00eddele: celkov\u00e1 ztr\u00e1ta v lo\u017eisku p\u0159ibli\u017en\u011b 0,6\u20131,21 TP3T.<\/p>\n<\/div>\n

Ztr\u00e1ta p\u0159i m\u00edch\u00e1n\u00ed (P_VX)<\/strong><\/p>\n

Odpor od zub\u016f ozuben\u00e9ho kola proch\u00e1zej\u00edc\u00edch olejovou l\u00e1zn\u00ed. V\u00e1hy s hladinou oleje, viskozitou oleje a obvodovou rychlost\u00ed ud\u011blenou v t\u0159et\u00ed mocnin\u011b (P_VX \u221d v\u00b3). Minimalizuje se udr\u017eov\u00e1n\u00edm hladiny oleje na minim\u00e1ln\u00ed \u00farovni posta\u010duj\u00edc\u00ed pro maz\u00e1n\u00ed \u2013 nepln\u011bn\u00edm sk\u0159\u00edn\u011b na nejvy\u0161\u0161\u00ed povolenou \u00farove\u0148. Pro \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> p\u0159i rychlosti 15 m\/s+ m\u016f\u017ee v\u00ed\u0159en\u00ed p\u0159ekro\u010dit ztr\u00e1tu na s\u00edti.<\/p>\n<\/div>\n<\/div>\n

V\u00fdpo\u010det celkov\u00e9ho generovan\u00e9ho tepla \u2013 pracovn\u00ed p\u0159\u00edstup<\/h2>\n

Celkov\u00e9 teplo generovan\u00e9 v spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u0159evodovka:<\/p>\n

Q_total = P_vstup \u00d7 (1 \u2212 \u03b7_total) [kW]<\/p>\n

Kde \u03b7_total je celkov\u00e1 \u00fa\u010dinnost m\u011bni\u010de. Pro jednostup\u0148ov\u00fd uzem\u0148ova\u010d spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u0159evodovka se standardn\u00edmi lo\u017eisky s koso\u00fahl\u00fdm stykem:<\/p>\n

\n\n\n\n\n\n\n\n\n
Rychlost na linii t\u00f3nu<\/th>\n\u00da\u010dinnost z\u00e1b\u011bru ozuben\u00fdch kol<\/th>\n\u00da\u010dinnost lo\u017eiska<\/th>\nZtr\u00e1ta t\u011bsn\u011bn\u00ed<\/th>\nCelkov\u00e9 jednostup\u0148ov\u00e9 \u03b7<\/th>\n<\/tr>\n<\/thead>\n
<3 m\/s<\/td>\n98,5\u201399%<\/td>\n99,2\u201399,5%<\/td>\n99.5%<\/td>\n97,5\u201398%<\/strong><\/td>\n<\/tr>\n
3\u201310 m\/s<\/td>\n99\u201399,3%<\/td>\n99,3\u201399,6%<\/td>\n99.5%<\/td>\n98\u201398,5%<\/strong><\/td>\n<\/tr>\n
10\u201325 m\/s<\/td>\n99,2\u201399,5%<\/td>\n99,4\u201399,7%<\/td>\n99.7%<\/td>\n98,5\u201399%<\/strong><\/td>\n<\/tr>\n
>25 m\/s<\/td>\n99\u201399,5% (dominuje v\u00ed\u0159en\u00ed)<\/td>\n99,5\u201399,8%<\/td>\n99.8%<\/td>\n98,5\u201399,2%<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Zpracovan\u00fd p\u0159\u00edklad:<\/strong> P\u0159\u00edkon 200 kW, jednostup\u0148ov\u00fd spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u0159evodovka, v = 8 m\/s rychlost na ose stoup\u00e1n\u00ed, \u03b7 = 98,5%:<\/p>\n

Q = 200 \u00d7 (1 \u2212 0,985) = 200 \u00d7 0,015 = 3,0 kW vyroben\u00e9ho tepla<\/p>\n

Pro t\u0159\u00edstup\u0148ovou p\u0159evodovku p\u0159i \u03b7 = 0,985\u00b3 = 0,956: Q = 200 \u00d7 0,044 = 8,8 kW \u2013 t\u00e9m\u011b\u0159 trojn\u00e1sobek hodnoty u jednostup\u0148ov\u00e9 p\u0159evodovky. Proto v\u00edcestup\u0148ov\u00e9 p\u0159evodovky \u010dast\u011bji vy\u017eaduj\u00ed chlazen\u00ed olejem ne\u017e ekvivalentn\u00ed jednostup\u0148ov\u00e9 konstrukce.<\/p>\n

Tepeln\u00e1 kapacita pouzdra \u2013 kolik tepla dok\u00e1\u017ee rozpt\u00fdlit<\/h2>\n

\"Pr\u016fmyslov\u00fd<\/p>\n

Plocha obytn\u00e9 plochy pr\u016fmyslov\u00e9ho objektu spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159evodovka ur\u010duje maxim\u00e1ln\u00ed odvod tepla p\u0159irozenou konvekc\u00ed. Pokud teplo generovan\u00e9 z\u00e1b\u011brem ozuben\u00fdch kol a ztr\u00e1tami v lo\u017eisku p\u0159ekro\u010d\u00ed to, co m\u016f\u017ee povrch sk\u0159\u00edn\u011b odv\u00e9st p\u0159i p\u0159ijateln\u00e9 teplot\u011b oleje, je nutn\u00e9 extern\u00ed chlazen\u00ed olejem.<\/p>\n

Maxim\u00e1ln\u00ed teplo, kter\u00e9 m\u016f\u017ee sk\u0159\u00ed\u0148 p\u0159evodovky odv\u00e9st p\u0159irozenou konvekc\u00ed do klidn\u00e9ho okoln\u00edho vzduchu, je:<\/p>\n

Q_max_p\u0159irozen\u00e9 = k \u00d7 A_kryt\u00ed \u00d7 (T_olej_max \u2212 T_okol\u00ed) [W]<\/p>\n

Kde: k \u2248 12\u201318 W\/m\u00b2\u00b7K pro p\u0159irozenou konvekci (litinov\u00e9 nebo ocelov\u00e9 pouzdro, lakovan\u00e9), A_pouzdro = vn\u011bj\u0161\u00ed povrch v m\u00b2, T_oil_max = maxim\u00e1ln\u00ed p\u0159\u00edpustn\u00e1 teplota oleje (obvykle 80 \u00b0C pro miner\u00e1ln\u00ed olej, 95 \u00b0C pro syntetick\u00fd PAO), T_ambient = teplota okoln\u00edho vzduchu. Pro typickou pr\u016fmyslovou p\u0159evodovku s vn\u011bj\u0161\u00edm povrchem 0,5 m\u00b2 plat\u00ed T_oil_max = 80 \u00b0C, T_ambient = 25 \u00b0C:<\/p>\n

Q_max_p\u0159irozen\u00fd = 15 \u00d7 0,5 \u00d7 (80 \u2212 25) = 412 W \u2248 0,41 kW<\/p>\n

Toto mal\u00e9 \u010d\u00edslo odhaluje kl\u00ed\u010dov\u00fd poznatek: v\u011bt\u0161ina spir\u00e1lov\u00e9ho ozuben\u00e9ho kola<\/strong> P\u0159evodovky s trval\u00fdm v\u00fdkonem nad 20\u201330 kW vy\u017eaduj\u00ed n\u011bjakou formu aktivn\u00edho chlazen\u00ed nad r\u00e1mec p\u0159irozen\u00e9 konvekce v pouzd\u0159e. Standardn\u00edm prvn\u00edm krokem je p\u0159id\u00e1n\u00ed extern\u00edho \u017eebrov\u00e1n\u00ed nebo chladic\u00edho ventil\u00e1toru p\u0159ed pou\u017eit\u00edm tepeln\u00e9ho v\u00fdm\u011bn\u00edku olej-voda.<\/p>\n

T\u0159i mo\u017enosti chlazen\u00ed \u2013 kdy je kter\u00e1 z nich vhodn\u00e1<\/h2>\n
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Chlazen\u00ed ventil\u00e1torem<\/strong><\/p>\n

Ventil\u00e1tor namontovan\u00fd na vstupn\u00ed h\u0159\u00eddeli sm\u011bruje vzduch p\u0159es \u017eebra sk\u0159\u00edn\u011b. Zvy\u0161uje k z 12\u201318 W\/m\u00b2\u00b7K (p\u0159irozen\u00e9 proud\u011bn\u00ed vzduchu) na 25\u201340 W\/m\u00b2\u00b7K (nucen\u00e9 proud\u011bn\u00ed vzduchu). Ve v\u00fd\u0161e uveden\u00e9m p\u0159\u00edkladu zvy\u0161uje nucen\u00e9 proud\u011bn\u00ed vzduchu Q_max z 0,41 kW na 0,7\u20131,0 kW \u2013 co\u017e je dostate\u010dn\u00e9 pro p\u0159evodovky s trval\u00fdm v\u00fdkonem p\u0159ibli\u017en\u011b 50\u201380 kW. Nejjednodu\u0161\u0161\u00ed a nejlevn\u011bj\u0161\u00ed mo\u017enost chlazen\u00ed. Nen\u00ed vhodn\u00e9 pro pohony s prom\u011bnn\u00fdmi ot\u00e1\u010dkami, kde se ot\u00e1\u010dky ventil\u00e1toru (a pr\u016ftok vzduchu) m\u011bn\u00ed se vstupn\u00edmi ot\u00e1\u010dkami p\u0159evodovky.<\/p>\n<\/div>\n

Extern\u00ed v\u00fdm\u011bn\u00edk tepla olej-vzduch<\/strong><\/p>\n

Olejov\u00e9 \u010derpadlo cirkuluje p\u0159evodov\u00fd olej z vany p\u0159es \u017eebrovan\u00fd vzduchem chlazen\u00fd v\u00fdm\u011bn\u00edk tepla, ne\u017e se vr\u00e1t\u00ed do p\u0159evodovky. Prakticky neomezen\u00e1 kapacita odvodu tepla (omezena pouze velikost\u00ed v\u00fdm\u011bn\u00edku) p\u0159i jak\u00e9koli rychlosti pohonu. P\u0159id\u00e1v\u00e1 olejov\u00e9 \u010derpadlo, v\u00fdm\u011bn\u00edk, potrub\u00ed a filtr \u2013 zvy\u0161uje n\u00e1klady na syst\u00e9m, ale poskytuje definitivn\u00ed regulaci teploty pro velk\u00e9 nebo prom\u011bnn\u00e9 ot\u00e1\u010dky. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> pohony nad 100 kW.<\/p>\n<\/div>\n

V\u00fdm\u011bn\u00edk tepla olej-voda<\/strong><\/p>\n

Nejkompaktn\u011bj\u0161\u00ed a nej\u00fa\u010dinn\u011bj\u0161\u00ed varianta, pokud je k dispozici chladic\u00ed voda pro proces. Koeficient p\u0159estupu tepla pro vodu je 10\u201320\u00d7 vzduch, tak\u017ee v\u00fdm\u011bn\u00edk je mnohem men\u0161\u00ed ne\u017e ekvivalentn\u00ed vzduchov\u00e1 jednotka. Standard pro n\u00e1mo\u0159n\u00ed, pob\u0159e\u017en\u00ed a velk\u00e9 pr\u016fmyslov\u00e9 aplikace. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> pohony v \u010derpac\u00edch stanic\u00edch a kompresorov\u00fdch instalac\u00edch, kde je ji\u017e k dispozici rozvod chladic\u00ed vody. Ochrana proti korozi a zamrznut\u00ed na stran\u011b vody vy\u017eaduje dodate\u010dn\u00e9 syst\u00e9mov\u00e9 zv\u00e1\u017een\u00ed.<\/p>\n<\/div>\n<\/div>\n

Monitorov\u00e1n\u00ed teploty oleje \u2013 prevence tepeln\u00e9ho p\u0159et\u00ed\u017een\u00ed<\/h2>\n

Nejjednodu\u0161\u0161\u00ed spolehliv\u00e1 ochrana pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pohon proti tepeln\u00e9mu p\u0159et\u00ed\u017een\u00ed je vybaven termo\u010dl\u00e1nkem nebo senzorem PT100 v olejov\u00e9 van\u011b, p\u0159ipojen\u00fdm k rel\u00e9 teplotn\u00edho alarmu nastaven\u00e9mu na T_alarm = T_max \u2212 10 \u00b0C. Pro miner\u00e1ln\u00ed olej: T_alarm = 70 \u00b0C; pro syntetick\u00fd PAO: T_alarm = 85 \u00b0C. Korea Ever-Power doporu\u010duje standardn\u011b monitorovat teplotu pro v\u0161echny spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> aplikace nad 75 kW nep\u0159etr\u017eit\u011b a nap\u00e1j\u00ed port senzoru (n\u00e1stavec M18 \u00d7 1,5) na sk\u0159\u00edn\u00edch p\u0159evodovek pro p\u0159esn\u00e9 pr\u016fmyslov\u00e9 zak\u00e1zky. Druh\u00e9 vyp\u00ednac\u00ed rel\u00e9 p\u0159i T_max (80 \u00b0C miner\u00e1ln\u00ed \/ 95 \u00b0C PAO) zaji\u0161\u0165uje automatick\u00e9 vypnut\u00ed p\u0159ed zah\u00e1jen\u00edm degradace oleje.<\/p>\n

Korea Ever-Power \u2014 V\u00fdpo\u010det tepeln\u00e9ho v\u00fdkonu pro ka\u017edou pr\u016fmyslovou objedn\u00e1vku<\/h2>\n

Spole\u010dnost Korea Ever-Power prov\u00e1d\u00ed v\u00fdpo\u010det tepeln\u00e9ho v\u00fdkonu \u2013 teplo generovan\u00e9 ztr\u00e1tou \u00fa\u010dinnosti, odvoditelnost sk\u0159\u00edn\u011b z geometrie sk\u0159\u00edn\u011b a rozhodnut\u00ed o po\u017eadavc\u00edch na chlazen\u00ed \u2013 pro ka\u017ed\u00fd ozuben\u00e9 kolo se spir\u00e1lov\u00fdm \u0159ezem<\/strong> pr\u016fmyslov\u00e9 objedn\u00e1vky nad 50 kW. V\u00fdsledek v\u00fdpo\u010dtu ur\u010duje, zda je sk\u0159\u00ed\u0148 tepeln\u011b dosta\u010duj\u00edc\u00ed pro danou aplikaci, nebo zda je poskytnuto doporu\u010den\u00ed pro chlazen\u00ed. Jako p\u0159\u00edm\u00fd v\u00fdrobce \u0161ikm\u00fdch ozuben\u00fdch kol<\/a>Spole\u010dnost Korea Ever-Power uv\u00e1d\u00ed ve standardn\u00ed technick\u00e9 dokumentaci geometrii pouzdra, plochu povrchu a tepelnou kapacitu, aby syst\u00e9mov\u00e9mu in\u017een\u00fdrovi z\u00e1kazn\u00edka poskytla informace pot\u0159ebn\u00e9 k n\u00e1vrhu kompletn\u00edho syst\u00e9mu tepeln\u00e9ho managementu. Prohl\u00e9dn\u011bte si sortiment \u0161ikm\u00fdch ozuben\u00fdch kol<\/a> pro dal\u0161\u00ed specifikace.<\/p>\n

\"typy<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
Pro\u010d je kl\u00ed\u010dov\u00fdm tepeln\u00fdm parametrem teplota oleje, nikoli teplota sk\u0159\u00edn\u011b?<\/strong><\/p>\n

Teplota oleje p\u0159\u00edmo ur\u010duje viskozitu p\u0159evodov\u00e9ho oleje v m\u00edst\u011b z\u00e1b\u011bru zub\u016f \u2013 a tedy i tlou\u0161\u0165ku olejov\u00e9ho filmu EHL. Zv\u00fd\u0161en\u00ed teploty oleje o 10 \u00b0C sni\u017euje kinematickou viskozitu u miner\u00e1ln\u00edho oleje ISO VG 220 p\u0159ibli\u017en\u011b o 10\u2013151 TP3T, \u010d\u00edm\u017e se proporcion\u00e1ln\u011b sni\u017euje pom\u011br olejov\u00e9ho filmu EHL \u03bb. Teplota sk\u0159\u00edn\u011b je zpo\u017ed\u011bn\u00fdm indik\u00e1torem: stoup\u00e1 pot\u00e9, co se olej ji\u017e p\u0159eh\u0159\u00e1l. Teplota olejov\u00e9 vany je spr\u00e1vn\u00fd parametr, kter\u00fd je t\u0159eba sledovat a regulovat. Teplota povrchu sk\u0159\u00edn\u011b, m\u011b\u0159en\u00e1 extern\u011b infra\u010derven\u00fdm teplom\u011brem, umo\u017e\u0148uje bezkontaktn\u00ed kontrolu: pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u0159evodovka s litinovou sk\u0159\u00edn\u00ed, vn\u011bj\u0161\u00ed teplota sk\u0159\u00edn\u011b \u2248 teplota oleje \u2212 5 a\u017e \u221215 \u00b0C (v z\u00e1vislosti na teplotn\u00edm gradientu na st\u011bn\u011b sk\u0159\u00edn\u011b).<\/p>\n<\/div>\n

Jak ovliv\u0148uje okoln\u00ed teplota po\u017eadovan\u00fd stupe\u0148 viskozity oleje?<\/strong><\/p>\n

Pr\u016fvodce v\u00fdb\u011brem ISO VG (viz \u010dl\u00e1nek o maz\u00e1n\u00ed) uv\u00e1d\u00ed spr\u00e1vn\u00fd stupe\u0148 viskozity p\u0159i o\u010dek\u00e1van\u00e9 provozn\u00ed teplot\u011b olejov\u00e9 vany. V prost\u0159ed\u00ed s vysokou okoln\u00ed teplotou (tropick\u00e9 podneb\u00ed, uzav\u0159en\u00e9 provozn\u00ed m\u00edstnosti p\u0159i 40\u201350 \u00b0C) bude teplota olejov\u00e9 vany v ust\u00e1len\u00e9m stavu vy\u0161\u0161\u00ed ne\u017e v m\u00edrn\u00e9m podneb\u00ed, co\u017e m\u016f\u017ee sn\u00ed\u017eit provozn\u00ed viskozitu pod minimum po\u017eadovan\u00e9 pro plnohodnotn\u00fd film EHL \u2013 co\u017e vy\u017eaduje upgrade o jeden stupe\u0148 ISO VG. Pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pohon s jmenovitou t\u0159\u00eddou ISO VG 220 v m\u00edrn\u00fdch podm\u00ednk\u00e1ch (okol\u00ed 20 \u00b0C) m\u016f\u017ee stejn\u00fd pohon v okol\u00ed 45 \u00b0C vy\u017eadovat ISO VG 320 pro udr\u017een\u00ed ekvivalentn\u00ed tlou\u0161\u0165ky filmu EHL. Spole\u010dnost Korea Ever-Power specifikuje viskozitu oleje na z\u00e1klad\u011b uveden\u00e9 okoln\u00ed teploty \u2013 poskytuje tak spr\u00e1vn\u00fd stupe\u0148 pro m\u00edsto instalace, nikoli v\u00fdchoz\u00ed specifikaci.<\/p>\n<\/div>\n

Produkuje \u0161ikm\u00e9 ozuben\u00e9 kolo s vy\u0161\u0161\u00ed t\u0159\u00eddou p\u0159esnosti m\u00e9n\u011b tepla ne\u017e ozuben\u00e9 kolo s ni\u017e\u0161\u00ed t\u0159\u00eddou p\u0159esnosti?<\/strong><\/p>\n

Ano, m\u00edrn\u011b. Sou\u010dinitel t\u0159en\u00ed s\u00edt\u011b \u00b5 pro pozemn\u00ed povrch dle DIN t\u0159\u00eddy 5 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> (Ra \u2264 0,4 \u00b5m) je p\u0159ibli\u017en\u011b 0,04\u20130,05 oproti \u00b5 = 0,07\u20130,09 pro odvalovan\u00e9 ozuben\u00e9 kolo dle DIN t\u0159\u00eddy 8 (Ra \u2248 2,0 \u00b5m). Tento rozd\u00edl vede k p\u0159ibli\u017en\u011b o 40\u2013501 TP3T men\u0161\u00ed ztr\u00e1t\u011b v z\u00e1b\u011bru v z\u00e1vislosti na zat\u00ed\u017een\u00ed u brou\u0161en\u00e9ho ozuben\u00e9ho kola v porovn\u00e1n\u00ed s odvalovan\u00fdm ozuben\u00fdm kolem p\u0159i stejn\u00e9m p\u0159en\u00e1\u0161en\u00e9m zat\u00ed\u017een\u00ed \u2013 obvykle to odpov\u00edd\u00e1 0,5\u20131,51 bodu zlep\u0161en\u00ed \u00fa\u010dinnosti. Pro pohon o v\u00fdkonu 500 kW to znamen\u00e1 o 2,5\u20137,5 kW m\u00e9n\u011b tepla vznikaj\u00edc\u00edho brou\u0161en\u00edm, co\u017e m\u016f\u017ee v n\u011bkter\u00fdch hrani\u010dn\u00edch p\u0159\u00edpadech eliminovat pot\u0159ebu chlazen\u00ed olejem.<\/p>\n<\/div>\n

Co se stane, kdy\u017e se p\u0159eh\u0159eje p\u0159evodovka s spir\u00e1lov\u00fdm ozuben\u00edm a dojde k degradaci oleje?<\/strong><\/p>\n

Nad p\u0159ibli\u017en\u011b 90 \u00b0C u miner\u00e1ln\u00edho oleje (110 \u00b0C u PAO) se rychlost oxidace z\u00e1kladov\u00e9ho oleje p\u0159ibli\u017en\u011b zdvojn\u00e1sob\u00ed s ka\u017ed\u00fdm dal\u0161\u00edm zv\u00fd\u0161en\u00edm teploty o 10 \u00b0C. Zlep\u0161ova\u010de viskozitn\u00edho indexu a protiod\u011brov\u00e9 p\u0159\u00edsady oleje se rychle spot\u0159ebov\u00e1vaj\u00ed; olej houstne od oxida\u010dn\u00edch produkt\u016f a laku; film EHL se zten\u010duje a hrout\u00ed. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Poruchy, kter\u00e9 jsou d\u016fsledkem degradace oleje \u2013 mikrokoroze, od\u00edr\u00e1n\u00ed, zrychlen\u00e9 koroze \u2013 se zdaj\u00ed b\u00fdt poruchami p\u0159evod\u016f, ale v podstat\u011b se jedn\u00e1 o tepeln\u00e9 poruchy syst\u00e9mu. Spr\u00e1vn\u00e1 odpov\u011b\u010f: v\u017edy sp\u00e1rujte specifikaci p\u0159evodu s v\u00fdpo\u010dtem tepeln\u00e9 \u00fa\u010dinnosti a zajist\u011bte dostate\u010dn\u00e9 chlazen\u00ed p\u0159ed prvn\u00ed hodinou provozu \u2013 ne po poru\u0161e prvn\u00edho p\u0159evodu.<\/p>\n<\/div>\n

\n

Vy\u017e\u00e1dejte si tepeln\u00e9 hodnocen\u00ed pro va\u0161i aplikaci se spir\u00e1lov\u00fdm ozuben\u00fdm kolem<\/h2>\n

Uve\u010fte sv\u016fj v\u00fdkon, ot\u00e1\u010dky, pracovn\u00ed cyklus, okoln\u00ed teplotu a rozm\u011bry pouzdra. Korea Ever-Power vypo\u010d\u00edt\u00e1 generov\u00e1n\u00ed tepla, tepelnou kapacitu pouzdra a v p\u0159\u00edpad\u011b pot\u0159eby doporu\u010d\u00ed chladic\u00ed \u0159e\u0161en\u00ed \u2013 standardn\u011b u ka\u017ed\u00e9 objedn\u00e1vky p\u0159esn\u00e9ho pr\u016fmyslov\u00e9ho spir\u00e1lov\u00e9ho ozuben\u00e9ho kola nad 50 kW.<\/p>\n

Vy\u017e\u00e1dat si v\u00fdpo\u010det tepeln\u00e9 \u00fa\u010dinnosti<\/a>
\nProduktov\u00e1 \u0159ada \u0161ikm\u00fdch ozuben\u00fdch kol<\/a><\/div>\n

Ztr\u00e1ta v s\u00edti \u00b7 Ztr\u00e1ta v lo\u017eisku \u00b7 Ztr\u00e1ta v t\u011blese \u00b7 Doporu\u010den\u00ed pro chlazen\u00ed \u00b7 Pokyny pro sledov\u00e1n\u00ed teploty oleje<\/p>\n<\/div>\n

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

Tepeln\u00e9 vlastnosti spir\u00e1lov\u00e9ho p\u0159evodu \u2013 ztr\u00e1ty v\u00fdkonu, generov\u00e1n\u00ed tepla a po\u017eadavky na chlazen\u00ed Spir\u00e1lov\u00fd p\u0159evodov\u00fd pohon s v\u00fdkonem 200 kW a \u00fa\u010dinnost\u00ed 98% generuje 4 kW tepla \u2013 co\u017e odpov\u00edd\u00e1 \u010dty\u0159em 1kW topn\u00fdm t\u011bles\u016fm pracuj\u00edc\u00edm nep\u0159etr\u017eit\u011b uvnit\u0159 sk\u0159\u00edn\u011b p\u0159evodovky. Pokud povrch sk\u0159\u00edn\u011b nedok\u00e1\u017ee toto teplo dostate\u010dn\u011b rychle odv\u00e9st, aby se udr\u017eel [\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-2318","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2318","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=2318"}],"version-history":[{"count":2,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2318\/revisions"}],"predecessor-version":[{"id":2320,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2318\/revisions\/2320"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/media?parent=2318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/categories?post=2318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/tags?post=2318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}