{"id":1112,"date":"2026-06-24T05:52:52","date_gmt":"2026-06-24T05:52:52","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?p=1112"},"modified":"2026-06-24T05:53:43","modified_gmt":"2026-06-24T05:53:43","slug":"slewing-drive-planetary-gearbox-for-excavators","status":"publish","type":"post","link":"https:\/\/planetary-gearboxes.com\/cs\/slewing-drive-planetary-gearbox-for-excavators\/","title":{"rendered":"Planetov\u00e1 p\u0159evodovka s oto\u010dn\u00fdm pohonem pro bagry"},"content":{"rendered":"
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\"Planetov\u00e1<\/p>\n

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Korea Ever-Power \u00b7 Aplika\u010dn\u00ed in\u017een\u00fdrstv\u00ed \u00b7 R\u00fdpadla<\/p>\n

Planetov\u00e1 p\u0159evodovka s oto\u010dn\u00fdm pohonem pro bagry<\/h1>\n

Pohon ot\u00e1\u010den\u00ed v\u011btrn\u00e9 turb\u00edny se oto\u010d\u00ed 50kr\u00e1t za den. Sol\u00e1rn\u00ed sledova\u010d se oto\u010d\u00ed jednou. Pohon ot\u00e1\u010den\u00ed bagru se oto\u010d\u00ed 800 a\u017e 1 500kr\u00e1t \u2013 co\u017e z n\u011bj \u010din\u00ed nej\u010dast\u011bji cyklovan\u00fd oto\u010dn\u00fd pohon v cel\u00e9m stroj\u00edrenstv\u00ed a pohon, kde zrychlen\u00ed, zpomalen\u00ed a reverzace dominuj\u00ed technick\u00fdm specifikac\u00edm.<\/p>\n

Proch\u00e1zet planetov\u00e9 p\u0159evodovky s oto\u010dn\u00fdm pohonem \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Cyklus ot\u00e1\u010den\u00ed rypadla \u2013 navr\u017een pro rozjezd a zastaven\u00ed, nikoli pro st\u00e1l\u00e9 ot\u00e1\u010den\u00ed<\/h2>\n

Ka\u017ed\u00fd dal\u0161\u00ed oto\u010dn\u00fd pohon v t\u00e9to \u0159ad\u011b je navr\u017een prim\u00e1rn\u011b pro ust\u00e1len\u00e9 ot\u00e1\u010den\u00ed nebo p\u0159esn\u00e9 polohov\u00e1n\u00ed. Rypadlo planetov\u00e1 p\u0159evodovka s oto\u010dn\u00fdm pohonem<\/a> je ur\u010den p\u0159edev\u0161\u00edm pro rozjezd a zastaven\u00ed \u2013 proto\u017ee tr\u00e1v\u00ed v\u00edce \u010dasu zrychlov\u00e1n\u00edm a zpomalov\u00e1n\u00edm ne\u017e ot\u00e1\u010den\u00edm konstantn\u00ed rychlost\u00ed.<\/p>\n

Typick\u00fd cyklus ot\u00e1\u010den\u00ed: (1) zrychlen\u00ed z klidu na plnou rychlost ot\u00e1\u010den\u00ed za 0,5 a\u017e 1,5 sekundy, (2) oto\u010den\u00ed s konstantn\u00ed rychlost\u00ed o 60 a\u017e 120 stup\u0148\u016f za 1 a\u017e 3 sekundy, (3) zpomalen\u00ed do zastaven\u00ed v bod\u011b vysyp\u00e1n\u00ed nebo v\u00fdkopu za 0,5 a\u017e 1,5 sekundy, (4) couv\u00e1n\u00ed a opakov\u00e1n\u00ed. F\u00e1ze zrychlen\u00ed a zpomalen\u00ed generuj\u00ed nejvy\u0161\u0161\u00ed n\u00e1roky na to\u010div\u00fd moment a nejvy\u0161\u0161\u00ed tepeln\u00e9 zat\u00ed\u017een\u00ed \u2013 spot\u0159ebov\u00e1vaj\u00ed 701 TP3T celkov\u00e9 energie ot\u00e1\u010den\u00ed, zat\u00edmco z doby cyklu zab\u00edraj\u00ed pouze 401 TP3T.<\/p>\n

Protiintuitivn\u011b vy\u017eaduje ot\u00e1\u010den\u00ed s pln\u00fdm l\u017e\u00edc\u00ed (pln\u00e1 l\u017e\u00edce pohybuj\u00edc\u00ed se sm\u011brem k bodu vysyp\u00e1n\u00ed) MEN\u0160\u00cd to\u010div\u00fd moment ot\u00e1\u010den\u00ed ne\u017e n\u00e1vrat s pr\u00e1zdn\u00fdm l\u017e\u00edc\u00ed. D\u016fvod: obsluha se s plnou l\u017e\u00edc\u00ed ot\u00e1\u010d\u00ed pomaleji, aby se zabr\u00e1nilo rozsyp\u00e1n\u00ed materi\u00e1lu. N\u00e1vrat s pr\u00e1zdn\u00fdm l\u017e\u00edc\u00ed je rychlej\u0161\u00ed a agresivn\u011bj\u0161\u00ed \u2013 generuje vy\u0161\u0161\u00ed \u00fahlov\u00e9 zrychlen\u00ed, a proto vy\u0161\u0161\u00ed setrva\u010dn\u00fd moment. Zku\u0161en\u00ed obsluha ot\u00e1\u010d\u00ed n\u00e1vrat s pr\u00e1zdn\u00fdm l\u017e\u00edc\u00ed o 30 a\u017e 50% rychleji ne\u017e oto\u010den\u00ed s pln\u00fdm l\u017e\u00edc\u00ed a pohon ot\u00e1\u010den\u00ed mus\u00ed tuto asymetrickou pr\u00e1ci zvl\u00e1dnout, ani\u017e by se p\u0159eh\u0159\u00e1l nebo p\u0159et\u00ed\u017eil zuby ozuben\u00e9ho kola ve sm\u011bru n\u00e1vratu vysokou rychlost\u00ed.<\/p>\n

Praktick\u00fdm d\u016fsledkem t\u00e9to asymetrick\u00e9 z\u00e1t\u011b\u017ee je, \u017ee zuby ozuben\u00e9ho kola pohonu oto\u010de se nerovnom\u011brn\u011b hromad\u00ed \u00fanavov\u00e9 po\u0161kozen\u00ed. Boky v opa\u010dn\u00e9m sm\u011bru (pou\u017e\u00edvan\u00e9 b\u011bhem rychlej\u0161\u00edho n\u00e1vratu z pr\u00e1zdn\u00e9ho stavu) vykazuj\u00ed vy\u0161\u0161\u00ed \u0161pi\u010dkov\u00e9 kontaktn\u00ed nap\u011bt\u00ed ne\u017e boky v dop\u0159edn\u00e9m sm\u011bru (pou\u017e\u00edvan\u00e9 b\u011bhem pomalej\u0161\u00edho ot\u00e1\u010den\u00ed s zat\u00ed\u017een\u00edm) \u2013 a to i p\u0159esto, \u017ee sm\u011br to\u010div\u00e9ho momentu je stejn\u00fd. Po v\u00edce ne\u017e 10 000 hodin\u00e1ch se na zadn\u00edch boc\u00edch m\u016f\u017ee objevit mikrod\u016flkov\u00e1 r\u00fdha o 20 a\u017e 401 TP3T d\u0159\u00edve ne\u017e na p\u0159edn\u00edch boc\u00edch. Ozuben\u00e9 kolo mus\u00ed b\u00fdt dimenzov\u00e1no na nejhor\u0161\u00ed mo\u017en\u00fd stav bok\u016f a inspek\u010dn\u00ed protokol by m\u011bl konkr\u00e9tn\u011b zkoumat povrchy bok\u016f v opa\u010dn\u00e9m sm\u011bru \u2013 nejen vizu\u00e1ln\u011b p\u0159\u00edstupn\u00e9 p\u0159edn\u00ed povrchy.<\/p>\n

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Vztah mezi \u00fahlem nato\u010den\u00ed a produktivitou nen\u00ed line\u00e1rn\u00ed. Produktivita rypadla (m\u011b\u0159en\u00e1 v tun\u00e1ch p\u0159epravovan\u00e9ho materi\u00e1lu za hodinu) je nejvy\u0161\u0161\u00ed, kdy\u017e je \u00fahel nato\u010den\u00ed minimalizov\u00e1n \u2013 rypadlo s \u00fahlem nato\u010den\u00ed 60 stup\u0148\u016f p\u0159esune o 30 a\u017e 40% v\u00edce materi\u00e1lu za hodinu ne\u017e stejn\u00fd stroj s \u00fahlem nato\u010den\u00ed 120 stup\u0148\u016f, proto\u017ee doba nato\u010den\u00ed je neproduktivn\u00ed \u010d\u00e1st\u00ed rypadlov\u00e9ho cyklu. Rozhodnut\u00ed o uspo\u0159\u00e1d\u00e1n\u00ed staveni\u0161t\u011b (um\u00edst\u011bn\u00ed n\u00e1kladn\u00edho vozu, um\u00edst\u011bn\u00ed hromady), kter\u00e1 sni\u017euj\u00ed \u00fahel nato\u010den\u00ed o 30 stup\u0148\u016f, mohou zv\u00fd\u0161it produktivitu o 15 a\u017e 20% \u2013 a z\u00e1rove\u0148 o stejn\u00e9 procento sn\u00ed\u017eit tepeln\u00e9 zat\u00ed\u017een\u00ed pohonu oto\u010de na cyklus. Nej\u00fa\u010dinn\u011bj\u0161\u00ed ochranou pohonu oto\u010de nen\u00ed in\u017een\u00fdrstv\u00ed \u2013 je to pl\u00e1nov\u00e1n\u00ed staveni\u0161t\u011b.<\/p>\n<\/div>\n

\"Planetov\u00e1<\/div>\n<\/div>\n<\/section>\n

\"Planetov\u00e1<\/p>\n

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In\u017een\u00fdrstv\u00ed momentu ot\u00e1\u010den\u00ed \u2013 specifikace pohonu se \u0159\u00edd\u00ed setrva\u010dnost\u00ed, nikoli zat\u00ed\u017een\u00edm<\/h2>\n

U je\u0159\u00e1bu je oto\u010dn\u00fd moment dominantn\u011b ovlivn\u011bn statick\u00fdm zat\u00ed\u017een\u00edm. U rypadla je dominantn\u011b ovlivn\u011bn setrva\u010dnost\u00ed \u2013 odporem horn\u00ed konstrukce v\u016f\u010di \u00fahlov\u00e9mu zrychlen\u00ed. P\u0159ibli\u017en\u011b 701 TP3T maxim\u00e1ln\u00edho oto\u010dn\u00e9ho momentu je spot\u0159ebov\u00e1no setrva\u010dnost\u00ed a pouze 301 TP3T t\u0159en\u00edm. To znamen\u00e1, \u017ee t\u011b\u017e\u0161\u00ed protiz\u00e1va\u017e\u00ed nebo del\u0161\u00ed v\u00fdlo\u017en\u00edk m\u00e1 v\u011bt\u0161\u00ed vliv na oto\u010dn\u00fd moment ne\u017e t\u011b\u017e\u0161\u00ed zat\u00ed\u017een\u00ed lopaty.<\/p>\n

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T\u0159\u00edda<\/th>\nHmotnost (t)<\/th>\nSetrva\u010dnost (kg\u00b7m2)<\/th>\nRPM<\/th>\nMaxim\u00e1ln\u00ed to\u010div\u00fd moment<\/th>\n<\/tr>\n<\/thead>\n
Mini (1,5\u20136 t)<\/td>\n1,5 \u2013 6<\/td>\n500 \u2013 3 tis\u00edce<\/td>\n8 \u2013 12<\/td>\n3 000 \u2013 8 000 Nm<\/td>\n<\/tr>\n
St\u0159edn\u00ed (12\u201325 t)<\/td>\n12 \u2013 25<\/td>\n8 tis\u00edc \u2013 30 tis\u00edc<\/td>\n9 \u2013 12<\/td>\n12 000 \u2013 35 000 Nm<\/td>\n<\/tr>\n
Velk\u00e1 (30\u201390 t)<\/td>\n30 \u2013 90<\/td>\n50 tis\u00edc \u2013 250 tis\u00edc<\/td>\n6 \u2013 9<\/td>\n40 000 \u2013 120 000 Nm<\/td>\n<\/tr>\n
T\u011b\u017eba (100\u2013800 t)<\/td>\n100 \u2013 800<\/td>\n500 tis\u00edc \u2013 8 milion\u016f<\/td>\n4 \u2013 6<\/td>\n150 000 \u2013 800 000 Nm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Metodika dimenzov\u00e1n\u00ed oto\u010dn\u00fdch pohon\u016f bagru se proto z\u00e1sadn\u011b li\u0161\u00ed od oto\u010dn\u00fdch pohon\u016f je\u0159\u00e1bu. Pohon je\u0159\u00e1bu se dimenzuje v\u00fdpo\u010dtem statick\u00e9ho klopn\u00e9ho momentu p\u0159i maxim\u00e1ln\u00edm zat\u00ed\u017een\u00ed a polom\u011bru. Oto\u010dn\u00fd pohon bagru se dimenzuje v\u00fdpo\u010dtem \u0161pi\u010dkov\u00e9ho \u00fahlov\u00e9ho zrychlovac\u00edho momentu \u2013 kter\u00fd z\u00e1vis\u00ed na momentu setrva\u010dnosti (\u0159\u00edzen\u00e9m hmotnost\u00ed a polohou protiz\u00e1va\u017e\u00ed), c\u00edlov\u00e9 dob\u011b zrychlen\u00ed kyvu (\u0159\u00edzen\u00e9 obsluhou a hydraulick\u00fdm syst\u00e9mem) a t\u0159ec\u00edm momentu (\u0159\u00edzen\u00e9m velikost\u00ed oto\u010dn\u00e9ho lo\u017eiska a stavem maz\u00e1n\u00ed). Jmenovit\u00e9 zat\u00ed\u017een\u00ed zub\u016f ozuben\u00e9ho kola mus\u00ed pou\u017e\u00edvat dynamickou (reverzn\u00ed) mez \u00fanavy, nikoli jednosm\u011brnou mez pou\u017e\u00edvanou pro pohony je\u0159\u00e1bu.<\/p>\n

Konstrukce protiz\u00e1va\u017e\u00ed p\u0159\u00edmo ovliv\u0148uje specifikaci pohonu oto\u010de \u2013 a konstrukt\u00e9r rypadla \u010del\u00ed z\u00e1sadn\u00edmu kompromisu. T\u011b\u017e\u0161\u00ed protiz\u00e1va\u017e\u00ed zlep\u0161uje stabilitu p\u0159i kop\u00e1n\u00ed (zabra\u0148uje p\u0159evr\u00e1cen\u00ed stroje dop\u0159edu p\u0159i t\u011b\u017ek\u00e9m zat\u00ed\u017een\u00ed lopaty), ale zvy\u0161uje moment setrva\u010dnosti, a t\u00edm i to\u010div\u00fd moment oto\u010de. Leh\u010d\u00ed protiz\u00e1va\u017e\u00ed sni\u017euje to\u010div\u00fd moment oto\u010de a spot\u0159ebu paliva, ale sni\u017euje stabilitu. Modern\u00ed rypadla pou\u017e\u00edvaj\u00ed syst\u00e9my variabiln\u00edch protiz\u00e1va\u017e\u00ed (odn\u00edmateln\u00e9 moduly protiz\u00e1va\u017e\u00ed), kter\u00e9 umo\u017e\u0148uj\u00ed obsluze optimalizovat vyv\u00e1\u017een\u00ed pro ka\u017edou pr\u00e1ci \u2013 ka\u017ed\u00e1 konfigurace v\u0161ak vy\u017eaduje, aby pohon oto\u010de zvl\u00e1dl jinou hodnotu setrva\u010dnosti. Oto\u010dn\u00fd pohon mus\u00ed b\u00fdt dimenzov\u00e1n na konfiguraci s maxim\u00e1ln\u00edm protiz\u00e1va\u017e\u00edm, i kdy\u017e stroj pracuje v re\u017eimu se sn\u00ed\u017een\u00fdm protiz\u00e1va\u017e\u00edm po celou dobu sv\u00e9 \u017eivotnosti.<\/p>\n<\/section>\n

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Dynamick\u00e9 brzd\u011bn\u00ed \u2013 Pro\u010d pohon ot\u00e1\u010den\u00ed generuje v\u00edce tepla p\u0159i brzd\u011bn\u00ed ne\u017e p\u0159i startov\u00e1n\u00ed<\/h2>\n

Na konci ka\u017ed\u00e9ho v\u00fdkyvu mus\u00ed oto\u010dn\u00fd pohon zpomalit horn\u00ed konstrukci z pln\u00e9 rychlosti v\u00fdkyvu do \u00fapln\u00e9ho zastaven\u00ed \u2013 absorbovat kinetickou energii ulo\u017eenou v rotuj\u00edc\u00ed hmot\u011b jako teplo v hydraulick\u00e9m motoru, planetov\u00fdch p\u0159evodech a oleji.<\/p>\n

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Brzdn\u00e1 energie \u2014 Rypadlo 30 t p\u0159i 9 ot.\/min<\/div>\n
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\u00a0\u00a0Setrva\u010dnost: 80 000 kg\u00b7m2 \u00b7 Rychlost: 9 ot\/min = 0,942 rad\/s<\/div>\n
\u00a0\u00a0E = 0,5 \u00d7 80 000 \u00d7 0,9422 = 35 500 J na \u0161vih<\/strong><\/div>\n
\u00a0\u00a0Denn\u011b (1 200 cykl\u016f): 35,5 x 1 200 = 42 600 kJ = 11,8 kWh tepla<\/strong><\/div>\n
\u2192 Teplota oleje se b\u011bhem intenzivn\u00edho kop\u00e1n\u00ed stabilizuje na 80\u2013100 \u00b0C<\/div>\n<\/div>\n<\/div>\n

T\u011bchto 11,8 kWh denn\u00edho brzdn\u00e9ho tepla je nep\u0159etr\u017eit\u00fdch a nevyhnuteln\u00fdch: ka\u017ed\u00fd rozjezd ot\u00e1\u010den\u00ed se mus\u00ed tak\u00e9 zastavit. Tepeln\u00e9 zat\u00ed\u017een\u00ed je hlavn\u00edm faktorem omezuj\u00edc\u00edm interval v\u00fdm\u011bny oleje u pohon\u016f oto\u010d\u00ed rypadla \u2013 p\u0159i 100 \u00b0C miner\u00e1ln\u00ed olej oxiduje 4kr\u00e1t rychleji ne\u017e p\u0159i 80 \u00b0C. Agresivn\u00ed obsluha, kter\u00e1 provede 1 500 cykl\u016f denn\u011b (oproti 800 u st\u0159edn\u011b n\u00e1ro\u010dn\u00e9 obsluhy), generuje t\u00e9m\u011b\u0159 dvojn\u00e1sobn\u00e9 tepeln\u00e9 zat\u00ed\u017een\u00ed, \u010d\u00edm\u017e se efektivn\u00ed \u017eivotnost oleje sni\u017euje o 60 a\u017e 751 TP3T. Proto v\u00fdrobci rypadel st\u00e1le \u010dast\u011bji specifikuj\u00ed jako standard syntetick\u00fd olej pro pohony oto\u010d\u00ed \u2013 syntetick\u00e9 oleje PAO si udr\u017euj\u00ed stabilitu p\u0159i 100 \u00b0C pro intervaly v\u00fdm\u011bny oleje 2 000 a\u017e 3 000 hodin, oproti 1 000 a\u017e 1 500 hodin\u00e1m u miner\u00e1ln\u00edho oleje p\u0159i stejn\u00e9 teplot\u011b.<\/p>\n

Ekonomick\u00fd dopad chov\u00e1n\u00ed obsluhy na \u017eivotnost pohonu oto\u010de je zna\u010dn\u00fd. Agresivn\u00ed obsluha, kter\u00e1 zkr\u00e1t\u00ed \u017eivotnost pohonu oto\u010de z 12 000 na 8 000 hodin provozem za zv\u00fd\u0161en\u00fdch teplot, stoj\u00ed majitele jednu dal\u0161\u00ed v\u00fdm\u011bnu pohonu oto\u010de (3 000 a\u017e 8 000 USD u rypadla o nosnosti 20 a\u017e 30 tun) plus rozd\u00edl v n\u00e1kladech na v\u00fdm\u011bnu oleje. B\u011bhem 15 000 hodin \u017eivotnosti stroje m\u016f\u017ee tento rozd\u00edl v chov\u00e1n\u00ed p\u0159idat 10 000 a\u017e 25 000 USD na \u00fadr\u017ebu syst\u00e9mu oto\u010de \u2013 skryt\u00e9 n\u00e1klady, kter\u00e9 se z\u0159\u00eddka sleduj\u00ed, ale lze p\u0159\u00edmo p\u0159ipsat technice obsluhy. Modern\u00ed telematick\u00e9 syst\u00e9my dok\u00e1\u017e\u00ed monitorovat rychlost ot\u00e1\u010den\u00ed, po\u010det cykl\u016f a teplotu oleje v re\u00e1ln\u00e9m \u010dase \u2013 a poskytuj\u00ed tak data pot\u0159ebn\u00e1 k identifikaci a n\u00e1prav\u011b agresivn\u00edho chov\u00e1n\u00ed p\u0159i ot\u00e1\u010den\u00ed d\u0159\u00edve, ne\u017e se stane n\u00e1kladem na \u00fadr\u017ebu.<\/p>\n<\/section>\n

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

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Rekuperace energie ot\u00e1\u010den\u00ed \u2013 Pro\u010d se hybridn\u00ed rypadla zam\u011b\u0159uj\u00ed p\u0159edev\u0161\u00edm na oto\u010dn\u00fd syst\u00e9m<\/h2>\n

Oto\u010dn\u00fd syst\u00e9m spot\u0159ebuje 25 a\u017e 351 tun paliva pro bagr \u2013 druh\u00fd nejv\u011bt\u0161\u00ed spot\u0159ebitel energie po hlavn\u00edch hydraulick\u00fdch \u010derpadlech. U stroj\u016f s intenzivn\u00edm nakl\u00e1d\u00e1n\u00edm n\u00e1kladn\u00edch vozidel (\u00fahel nato\u010den\u00ed p\u0159esahuj\u00edc\u00ed 90 stup\u0148\u016f za cyklus) se m\u016f\u017ee ot\u00e1\u010den\u00ed bl\u00ed\u017eit 401 tun paliva. Tato koncentrace energie v jedin\u00e9, vysoce cyklick\u00e9 funkci \u010din\u00ed z pohonu ot\u00e1\u010den\u00ed nejatraktivn\u011bj\u0161\u00ed c\u00edl pro rekuperaci energie u hybridn\u00edch a elektrick\u00fdch bagr\u016f.<\/p>\n

V regenerativn\u00edm oto\u010dn\u00e9m syst\u00e9mu je oto\u010dn\u00fd pohon planetov\u00e1 p\u0159evodovka<\/a> pracuje s elektrick\u00fdm oto\u010dn\u00fdm motorem, kter\u00fd nahrazuje tradi\u010dn\u00ed hydraulick\u00fd motor. B\u011bhem akcelerace motor poh\u00e1n\u00ed oto\u010d. B\u011bhem brzd\u011bn\u00ed motor funguje jako gener\u00e1tor \u2013 p\u0159em\u011b\u0148uje kinetickou energii na elektrickou energii ulo\u017eenou v superkondenz\u00e1toru nebo lithiov\u00e9 baterii. Tato rekuperovan\u00e1 energie poh\u00e1n\u00ed dal\u0161\u00ed akceleraci, \u010d\u00edm\u017e se sni\u017euje zat\u00ed\u017een\u00ed motoru a dosahuje se celkov\u00e9 \u00faspory paliva o 15 a\u017e 251 TP3T \u2013 co\u017e je nejv\u011bt\u0161\u00ed jednotliv\u00e1 \u00faspora paliva, jak\u00e1 je mo\u017en\u00e1 d\u00edky jak\u00e9mukoli vylep\u0161en\u00ed jednotliv\u00fdch syst\u00e9m\u016f u konven\u010dn\u00edho rypadla.<\/p>\n

Samotn\u00e1 planetov\u00e1 p\u0159evodovka pohonu ot\u00e1\u010den\u00ed se u hybridn\u00edho ot\u00e1\u010den\u00ed nem\u011bn\u00ed \u2013 pou\u017e\u00edvaj\u00ed se stejn\u00e9 p\u0159evodov\u00e9 pom\u011bry, lo\u017eiska a sk\u0159\u00ed\u0148. Co se m\u011bn\u00ed, je tepeln\u00e9 zat\u00ed\u017een\u00ed: proto\u017ee rekupera\u010dn\u00ed motor rekuperuje 50 a\u017e 701 TP3T brzdn\u00e9 energie (m\u00edsto aby ji zcela p\u0159em\u011b\u0148oval na teplo), teplota oleje kles\u00e1 o 15 a\u017e 25 stup\u0148\u016f Celsia. Toto sn\u00ed\u017een\u00e9 tepeln\u00e9 nam\u00e1h\u00e1n\u00ed prodlu\u017euje \u017eivotnost oleje o 50 a\u017e 1001 TP3T a m\u016f\u017ee prodlou\u017eit \u017eivotnost lo\u017eisek a p\u0159evodovky o 20 a\u017e 301 TP3T.<\/p>\n

P\u0159edn\u00ed konstrukce hybridn\u00edch rypadel (\u0159ada Komatsu HB, Caterpillar 336F HEX, Kobelco SK210H) pou\u017e\u00edvaj\u00ed elektrick\u00e9 oto\u010dn\u00e9 motory se superkondenz\u00e1torem nebo lithium-iontov\u00fdm \u00falo\u017ei\u0161t\u011bm energie. P\u0159\u00edstup se superkondenz\u00e1torem nab\u00edz\u00ed rychlej\u0161\u00ed nab\u00edjen\u00ed\/vyb\u00edjen\u00ed (odpov\u00eddaj\u00edc\u00ed 15 a\u017e 25sekundov\u00e9mu cyklu ot\u00e1\u010den\u00ed), ale ni\u017e\u0161\u00ed hustotu energie. Lithium-iontov\u00fd p\u0159\u00edstup nab\u00edz\u00ed vy\u0161\u0161\u00ed hustotu energie, ale vy\u017eaduje slo\u017eit\u011bj\u0161\u00ed tepeln\u00fd management. Oba p\u0159\u00edstupy pou\u017e\u00edvaj\u00ed stejnou planetovou p\u0159evodovku s oto\u010dn\u00fdm pohonem jako konven\u010dn\u00ed hydraulick\u00fd model \u2013 p\u0159evodovka je nez\u00e1visl\u00e1 na typu motoru. Tato zp\u011btn\u00e1 kompatibilita znamen\u00e1, \u017ee specifikace oto\u010dn\u00e9ho pohonu, n\u00e1hradn\u00ed d\u00edly a postupy \u00fadr\u017eby z\u016fst\u00e1vaj\u00ed konzistentn\u00ed u konven\u010dn\u00edch i hybridn\u00edch variant stejn\u00e9ho modelu rypadla.<\/p>\n

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Volba \u00falo\u017ei\u0161t\u011b energie ovliv\u0148uje profil pracovn\u00edho cyklu pohonu oto\u010de. Superkondenz\u00e1tory nab\u00edzej\u00ed rychlosti nab\u00edjen\u00ed\/vyb\u00edjen\u00ed 10 a\u017e 50 kW \u2013 co\u017e odpov\u00edd\u00e1 35 kJ na cyklus oto\u010de p\u0159i typick\u00e9 dob\u011b cyklu 15 a\u017e 25 sekund. Lithium-iontov\u00e9 baterie nab\u00edzej\u00ed vy\u0161\u0161\u00ed hustotu energie, ale pomalej\u0161\u00ed rychlosti nab\u00edjen\u00ed, co\u017e vy\u017eaduje mezi jednotliv\u00fdmi v\u00fdkyvy vyrovn\u00e1vac\u00ed pauzu. V praxi dominuje p\u0159\u00edstup se superkondenz\u00e1tory u t\u0159\u00eddy rypadel o hmotnosti 20 a\u017e 40 tun, proto\u017ee rychl\u00e1 rychlost cykl\u016f vy\u017eaduje okam\u017eit\u00fd p\u0159enos energie, kter\u00e9mu chemie lithia nem\u016f\u017ee dos\u00e1hnout bez p\u0159edimenzov\u00e1n\u00ed baterie. Pro rypadla t\u011b\u017eebn\u00ed t\u0159\u00eddy (100 a v\u00edce tun) s del\u0161\u00edmi cykly oto\u010de (30 a\u017e 60 sekund) se lithium-iontov\u00e9 baterie st\u00e1vaj\u00ed \u017eivotaschopn\u00fdmi, proto\u017ee del\u0161\u00ed doba cyklu poskytuje dostate\u010dnou dobu nab\u00edjen\u00ed.<\/p>\n

\u00daspora paliva d\u00edky hybridn\u00edmu oto\u010den\u00ed nen\u00ed teoretick\u00e1 \u2013 je m\u011b\u0159ena a ov\u011b\u0159ov\u00e1na na s\u00e9riov\u00fdch stroj\u00edch. Ter\u00e9nn\u00ed data od provozovatel\u016f vozov\u00fdch park\u016f, kte\u0159\u00ed pou\u017e\u00edvaj\u00ed konven\u010dn\u00ed i hybridn\u00ed varianty stejn\u00e9ho modelu rypadla, konzistentn\u011b ukazuj\u00ed celkovou \u00fasporu paliva o 15 a\u017e 251 tun p\u0159i nakl\u00e1d\u00e1n\u00ed a kop\u00e1n\u00ed. P\u0159i nakl\u00e1d\u00e1n\u00ed kamionu s \u00fahly oto\u010den\u00ed 90 a v\u00edce stup\u0148\u016f m\u016f\u017ee \u00faspora dos\u00e1hnout 301 tun, proto\u017ee oto\u010dn\u00fd syst\u00e9m spot\u0159ebov\u00e1v\u00e1 v\u011bt\u0161\u00ed pod\u00edl celkov\u00e9ho paliva p\u0159i cyklech s v\u011bt\u0161\u00edm \u00fahlem oto\u010den\u00ed. planetov\u00e1 p\u0159evodovka s oto\u010dn\u00fdm pohonem<\/a> je v obou variant\u00e1ch shodn\u00fd \u2013 \u00faspora paliva poch\u00e1z\u00ed v\u00fdhradn\u011b z elektromotoru a \u00falo\u017ei\u0161t\u011b energie, nikoli z \u00fapravy p\u0159evodovky.<\/p>\n<\/div>\n

\"Provozn\u00ed<\/div>\n<\/div>\n<\/section>\n

\"Testovac\u00ed<\/p>\n

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T\u0159i re\u017eimy selh\u00e1n\u00ed, kter\u00e9 dominuj\u00ed v technice pohonu oto\u010de bagru<\/h2>\n
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1<\/div>\n
\u00danava planetov\u00fdch lo\u017eisek z vysokocyklov\u00e9ho zat\u00ed\u017een\u00ed start-stop-reverz<\/div>\n<\/div>\n

Ka\u017ed\u00fd cyklus k\u00fdv\u00e1n\u00ed zp\u016fsob\u00ed pln\u00e9 p\u0159et\u00ed\u017een\u00ed planetov\u00fdch lo\u017eisek. B\u011bhem 3 a\u017e 5 milion\u016f cykl\u016f za 10 000 a\u017e 15 000 hodin se p\u0159i t\u011bchto p\u0159et\u00ed\u017een\u00edch \u00fanava ob\u011b\u017en\u00fdch drah hromad\u00ed mnohem rychleji ne\u017e p\u0159i ust\u00e1len\u00e9m zat\u00ed\u017een\u00ed. V\u00fdpo\u010det L10 mus\u00ed pro reverzn\u00ed provoz pou\u017e\u00edt dynamick\u00e9 ekvivalentn\u00ed zat\u00ed\u017een\u00ed \u2013 obvykle 1,3 a\u017e 1,5n\u00e1sobek pr\u016fm\u011brn\u00e9ho zat\u00ed\u017een\u00ed. Lo\u017eisko dimenzovan\u00e9 metodou ust\u00e1len\u00e9ho (jednosm\u011brn\u00e9ho) provozu dos\u00e1hne sv\u00e9 vypo\u010d\u00edtan\u00e9 \u017eivotnosti L10 o 30 a\u017e 501 TP3T d\u0159\u00edve, ne\u017e se p\u0159edpokl\u00e1d\u00e1.<\/p>\n

Prevence: Jmenovit\u00e9 hodnoty lo\u017eisek pro reverzn\u00ed provoz. P\u0159\u00edsady do oleje s vysok\u00fdmi t\u011bsnic\u00edmi vlastnostmi. M\u011b\u0159en\u00ed v\u016fle oto\u010dn\u00e9ho lo\u017eiska ka\u017ed\u00fdch 2 000 hodin provozu.<\/div>\n<\/div>\n
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2<\/div>\n
P\u0159eh\u0159\u00edv\u00e1n\u00ed oto\u010dn\u00e9ho motoru a pohonu v d\u016fsledku agresivn\u00edho chov\u00e1n\u00ed obsluhy<\/div>\n<\/div>\n

Frekvenci cykl\u016f ur\u010duje oper\u00e1tor \u2013 agresivn\u00ed oper\u00e1tor generuje 1 500 cykl\u016f denn\u011b oproti 800 u st\u0159edn\u011b n\u00e1ro\u010dn\u00e9ho oper\u00e1tora, co\u017e t\u00e9m\u011b\u0159 zdvojn\u00e1sobuje tepeln\u00e9 zat\u00ed\u017een\u00ed. Rozd\u00edl teplot oleje m\u016f\u017ee mezi agresivn\u00edm a st\u0159edn\u011b n\u00e1ro\u010dn\u00fdm provozem na stejn\u00e9m stroji dos\u00e1hnout 15 a\u017e 25 stup\u0148\u016f Celsia. P\u0159i teplot\u011b p\u0159es 100 stup\u0148\u016f Celsia se rychlost oxidace oleje zdvojn\u00e1sobuje na ka\u017ed\u00fdch 10 stup\u0148\u016f Celsia, co\u017e sni\u017euje efektivn\u00ed \u017eivotnost oleje o 60 a\u017e 751 stup\u0148ov Celzia. Jedn\u00e1 se o poruchu zp\u016fsobenou chov\u00e1n\u00edm oper\u00e1tora, nikoli mechanickou \u2013 ale oto\u010dn\u00fd pohon ji mus\u00ed p\u0159e\u017e\u00edt.<\/p>\n

Ekonomick\u00fd dopad je zna\u010dn\u00fd: agresivn\u00ed oper\u00e1tor, kter\u00fd zkr\u00e1t\u00ed \u017eivotnost pohonu oto\u010de z 12 000 na 8 000 hodin, stoj\u00ed majitele stroje jednu dal\u0161\u00ed v\u00fdm\u011bnu pohonu (3 000 a\u017e 8 000 USD u rypadla o nosnosti 20 a\u017e 30 tun) plus n\u00e1klady na zrychlenou degradaci oleje. B\u011bhem 15 000 hodin \u017eivotnosti stroje m\u016f\u017ee tento rozd\u00edl v chov\u00e1n\u00ed v\u00e9st k n\u00e1klad\u016fm na \u00fadr\u017ebu syst\u00e9mu oto\u010de o 10 000 a\u017e 25 000 USD. Modern\u00ed telematick\u00e9 syst\u00e9my dok\u00e1\u017e\u00ed monitorovat rychlost ot\u00e1\u010den\u00ed, po\u010det cykl\u016f a teplotu oleje v re\u00e1ln\u00e9m \u010dase \u2013 a poskytuj\u00ed tak data pot\u0159ebn\u00e1 k identifikaci a n\u00e1prav\u011b agresivn\u00edho chov\u00e1n\u00ed p\u0159i ot\u00e1\u010den\u00ed d\u0159\u00edve, ne\u017e se stane n\u00e1kladem na \u00fadr\u017ebu.<\/p>\n

Prevence: Monitorov\u00e1n\u00ed teploty oleje s varov\u00e1n\u00edm pro obsluhu p\u0159i 90 \u00b0C a automatick\u00fdm sn\u00ed\u017een\u00edm v\u00fdkonu p\u0159i 100 \u00b0C. V\u00fdm\u011bna oleje po 500 hodin\u00e1ch provozu pro intenzivn\u00ed provoz s oto\u010dn\u00fdm motorem. \u0160kolen\u00ed obsluhy.<\/div>\n<\/div>\n
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3<\/div>\n
Opot\u0159eben\u00ed zub\u016f oto\u010dn\u00e9ho v\u011bnce v d\u016fsledku zne\u010di\u0161t\u011bn\u00ed z\u00e1b\u011bru pastorku s odkryt\u00fdm ozuben\u00fdm v\u011bncem<\/div>\n<\/div>\n

Z\u00e1b\u011br mezi pastorkem a ozuben\u00fdm v\u011bncem rypadla je vystaven ne\u010distot\u00e1m, p\u00edsku, de\u0161ti a \u00falomk\u016fm. Na rozd\u00edl od uzav\u0159en\u00fdch planetov\u00fdch stup\u0148\u016f se exponovan\u00e9 zuby spol\u00e9haj\u00ed na pravideln\u00e9 maz\u00e1n\u00ed mazivem. Mezi jednotliv\u00fdmi aplikacemi (ka\u017ed\u00fdch 8 a\u017e 50 hodin) se zuby ot\u00e1\u010dej\u00ed v abrazivn\u00edm prost\u0159ed\u00ed s ub\u00fdvaj\u00edc\u00edm filmem. B\u011bhem 8 000 a\u017e 12 000 hodin se profily opot\u0159ebov\u00e1vaj\u00ed, dokud v\u016fle nevytvo\u0159\u00ed znateln\u00e9 klep\u00e1n\u00ed p\u0159i ka\u017ed\u00e9m oto\u010den\u00ed sm\u011bru \u2013 co\u017e sni\u017euje p\u0159esnost polohov\u00e1n\u00ed a urychluje opot\u0159eben\u00ed vnit\u0159n\u00edho ozuben\u00e9ho kola v d\u016fsledku p\u0159en\u00e1\u0161en\u00e9ho r\u00e1zu. Obzvl\u00e1\u0161t\u011b \u0161kodliv\u00e1 je cementovit\u00e1 pasta, kter\u00e1 se tvo\u0159\u00ed p\u0159i sm\u00edch\u00e1n\u00ed jemn\u00e9 zeminy s mazivem a vodou \u2013 mezi provozn\u00edmi sm\u011bnami tvrdne a obru\u0161uje povrch zub\u016f b\u011bhem prvn\u00edch n\u011bkolika v\u00fdkyv\u016f ka\u017ed\u00e9ho pracovn\u00edho dne, ne\u017e \u010derstv\u00e9 mazivo vytla\u010d\u00ed zaschlou pastu. Rypadla pracuj\u00edc\u00ed v cementov\u00e9m, na v\u00e1pn\u00edk bohat\u00e9m p\u016fdn\u00edm nebo alkalick\u00e9m prost\u0159ed\u00ed (pH nad 9) za\u017e\u00edvaj\u00ed opot\u0159eben\u00ed zub\u016f 2 a\u017e 3kr\u00e1t rychleji ne\u017e stroje v p\u016fd\u011b s neutr\u00e1ln\u00edm pH \u2013 proto\u017ee alkalick\u00e1 vlhkost napad\u00e1 sou\u010dasn\u011b mazivo i ocelov\u00fd povrch.<\/p>\n

Prevence: Automatick\u00fd syst\u00e9m maz\u00e1n\u00ed ozuben\u00fdch v\u011bnc\u016f (ka\u017ed\u00fdch 4\u20138 h). Denn\u00ed \u010di\u0161t\u011bn\u00ed ne\u010distot. M\u011b\u0159en\u00ed v\u016fle v intervalech 2 000 hodin. V\u00fdm\u011bna pastorku, kdy\u017e v\u016fle p\u0159ekro\u010d\u00ed specifikaci.<\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Planetov\u00e1 p\u0159evodovka s oto\u010dn\u00fdm pohonem pro bagry \u2013 \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
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Jak se li\u0161\u00ed pohon ot\u00e1\u010den\u00ed bagru od pohonu ot\u00e1\u010den\u00ed je\u0159\u00e1bu?<\/h3>\n

T\u0159i z\u00e1sadn\u00ed rozd\u00edly: (1) po\u010det cykl\u016f \u2013 800 a\u017e 1 500 za den oproti 50 a\u017e 200 u je\u0159\u00e1b\u016f, co\u017e vy\u017eaduje 5 a\u017e 10kr\u00e1t del\u0161\u00ed \u00fanavovou \u017eivotnost; (2) pln\u00e9 obr\u00e1cen\u00ed to\u010div\u00e9ho momentu v ka\u017ed\u00e9m cyklu oproti p\u0159ev\u00e1\u017en\u011b jednosm\u011brn\u00e9mu ot\u00e1\u010den\u00ed je\u0159\u00e1bu; a (3) trval\u00e9 tepeln\u00e9 zat\u00ed\u017een\u00ed 80 a\u017e 100 \u00b0C oproti 50 a\u017e 70 \u00b0C u je\u0159\u00e1b\u016f. Pohon je\u0159\u00e1bu u bagru by dos\u00e1hl sv\u00e9 \u00fanavov\u00e9 \u017eivotnosti lo\u017eiska b\u011bhem 3 000 a\u017e 5 000 hodin \u2013 co\u017e je jedna t\u0159etina o\u010dek\u00e1van\u00e9 \u017eivotnosti bagru.<\/p>\n<\/div>\n

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Jak\u00e1 je typick\u00e1 \u017eivotnost?<\/h3>\n

8 000 a\u017e 15 000 hodin pro p\u0159evodovku. Pastorek: 6 000 a\u017e 12 000 hodin. Hydraulick\u00fd motor: gener\u00e1ln\u00ed oprava po 8 000 a\u017e 10 000 hodin\u00e1ch. V\u00fdm\u011bna oleje: 1 000 a\u017e 2 000 hodin (miner\u00e1ln\u00ed) nebo 2 000 a\u017e 3 000 hodin\u00e1ch (syntetick\u00fd). Pro intenzivn\u00ed nakl\u00e1dku n\u00e1kladn\u00edch vozidel pou\u017e\u00edvejte ni\u017e\u0161\u00ed rozsahy.<\/p>\n<\/div>\n

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Kolik paliva spot\u0159ebuje oto\u010dn\u00fd syst\u00e9m?<\/h3>\n

25 a\u017e 351 TP3T celkov\u00e9ho paliva pro bagr \u2013 a\u017e 401 TP3T p\u0159i intenzivn\u00edm nakl\u00e1d\u00e1n\u00ed n\u00e1kladn\u00edch vozidel. Hybridn\u00ed rekuperativn\u00ed syst\u00e9my ot\u00e1\u010den\u00ed rekuperuj\u00ed 50 a\u017e 701 TP3T brzdn\u00e9 energie, \u010d\u00edm\u017e se celkov\u00e1 spot\u0159eba paliva stroje sni\u017euje o 15 a\u017e 251 TP3T.<\/p>\n<\/div>\n

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Pro\u010d pot\u0159ebuje bagr oto\u010dnou parkovac\u00ed brzdu?<\/h3>\n

Kdy\u017e je motor vypnut\u00fd, hydraulick\u00fd tlak je nulov\u00fd a motor nem\u016f\u017ee udr\u017eet horn\u00ed konstrukci. Na jak\u00e9mkoli naklon\u011bn\u00e9m povrchu by se horn\u00ed konstrukce voln\u011b ot\u00e1\u010dela vlivem gravitace. Pru\u017einov\u00e1 parkovac\u00ed brzda dr\u017e\u00ed v\u011b\u017e v klidu b\u011bhem vypnut\u00ed \u2013 zabra\u0148uje tak k\u00fdv\u00e1n\u00ed v\u00fdlo\u017en\u00edku z kopce a mo\u017en\u00e9mu p\u0159evr\u00e1cen\u00ed stroje na svaz\u00edch nad 38 m.<\/p>\n<\/div>\n

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Dod\u00e1v\u00e1 Korea Ever-Power oto\u010dn\u00e9 pohony pro bagry?<\/h3>\n

Ano. 3 000 a\u017e 800 000 Nm, kter\u00e9 pokr\u00fdvaj\u00ed miniaturn\u00ed (1,5 t) a\u017e t\u011b\u017eebn\u00ed bagry (800 t). Standardn\u00ed v\u00fdbavou jsou vysokocyklov\u00e1 reverzn\u00ed lo\u017eiska, kalen\u00e1 ozuben\u00e1 kola z oceli 20CrMnTi (DIN 3990 metoda B), integrovan\u00e9 parkovac\u00ed brzdy a tepeln\u011b \u0159\u00edzen\u00e9 otvory pro cirkulaci oleje. Pro specifikaci uve\u010fte model rypadla, hmotnost a prim\u00e1rn\u00ed pou\u017eit\u00ed.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Pohony oto\u010d\u00ed bagru \u2013 vysokocyklov\u00e9, reverzabiln\u00ed, tepeln\u011b \u0159\u00edzen\u00e9<\/div>\n

Spole\u010dnost Korea Ever-Power dod\u00e1v\u00e1 planetov\u00e9 p\u0159evodovky s pohonem ot\u00e1\u010den\u00ed pro bagry od 3 000 do 800 000 Nm s vysokocyklov\u00fdmi lo\u017eisky, integrovan\u00fdmi parkovac\u00edmi brzdami a tepeln\u00fdm managementem. Pro specifikaci uve\u010fte model va\u0161eho bagru.<\/p>\n<\/div>\n

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Zobrazit sortiment oto\u010dn\u00fdch pohon\u016f \u2192<\/a><\/p>\n

sales@planet\u00e1rn\u00ed-p\u0159evodovky.com<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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

Korea Ever-Power \u00b7 Application Engineering \u00b7 Excavators Slewing Drive Planetary Gearbox for Excavators A wind turbine yaw drive rotates 50 times per day. A solar tracker rotates once. An excavator swing drive rotates 800 to 1,500 times \u2014 making it the most frequently cycled slewing drive in the entire equipment industry, and the one where […]<\/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":[965],"tags":[],"class_list":["post-1112","post","type-post","status-publish","format-standard","hentry","category-application-and-technical-guid"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/comments?post=1112"}],"version-history":[{"count":3,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1112\/revisions"}],"predecessor-version":[{"id":1116,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1112\/revisions\/1116"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/media?parent=1112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/categories?post=1112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/tags?post=1112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}