{"id":1055,"date":"2026-06-23T05:56:50","date_gmt":"2026-06-23T05:56:50","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?p=1055"},"modified":"2026-06-23T05:56:50","modified_gmt":"2026-06-23T05:56:50","slug":"track-drive-planetary-gearbox-for-trenchers","status":"publish","type":"post","link":"https:\/\/planetary-gearboxes.com\/cs\/track-drive-planetary-gearbox-for-trenchers\/","title":{"rendered":"Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro r\u00fdpadla"},"content":{"rendered":"
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<\/div>\n
<\/div>\n

Korea Ever-Power \u00b7 Aplika\u010dn\u00ed in\u017een\u00fdrstv\u00ed \u00b7 R\u00fdhova\u010de<\/p>\n

Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro r\u00fdpadla \u2013 koncov\u00fd p\u0159evod, kter\u00fd bojuje se sv\u00fdm vlastn\u00edm strojem<\/h1>\n

Buldozer tla\u010d\u00ed zeminu dop\u0159edu. R\u00fdpadlo \u0159e\u017ee sm\u011brem dol\u016f \u2013 a \u0159ezac\u00ed \u0159et\u011bz tla\u010d\u00ed stroj. dozadu<\/em>Pohon p\u00e1s\u016f mus\u00ed p\u0159ekonat tuto samogenerovanou reak\u010dn\u00ed s\u00edlu a z\u00e1rove\u0148 udr\u017eovat tak konstantn\u00ed rychlost posuvu, aby se dno v\u00fdkopu na 500metrov\u00e9m \u00faseku potrub\u00ed m\u011bnilo o m\u00e9n\u011b ne\u017e 25 mm. \u017d\u00e1dn\u00fd jin\u00fd p\u00e1sov\u00fd stroj neodol\u00e1v\u00e1 s\u00edle vytv\u00e1\u0159en\u00e9 jeho vlastn\u00edm pracovn\u00edm n\u00e1strojem.<\/p>\n

Proch\u00e1zet planetov\u00e9 p\u0159evodovky pro p\u00e1sov\u00e9 pohony \u2192<\/a><\/p>\n<\/div>\n<\/section>\n

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\u0158et\u011bzov\u00e1 reak\u010dn\u00ed s\u00edla \u2013 zat\u011b\u017eovac\u00ed stav specifick\u00fd pro p\u00e1sov\u00e9 pohony r\u00fdhova\u010d\u016f<\/h2>\n

\u0158et\u011bz pro r\u00fdp\u00e1n\u00ed v\u00fdkop\u016f je souvisl\u00e1 smy\u010dka \u0159ezn\u00fdch zub\u016f namontovan\u00fdch na v\u00fdlo\u017en\u00edku, kter\u00fd sah\u00e1 dol\u016f do zem\u011b. \u0158et\u011bz se ot\u00e1\u010d\u00ed rychlost\u00ed 1 a\u017e 3 m\/s a ka\u017ed\u00fd zub odst\u0159ih\u00e1v\u00e1 \u00falomek zeminy nebo horniny z \u010dela v\u00fdkopu. Podle Newtonovy mechaniky \u0159ezn\u00e1 s\u00edla, kterou zuby vyv\u00edjej\u00ed na zem, vytv\u00e1\u0159\u00ed stejnou a opa\u010dnou reak\u010dn\u00ed s\u00edlu na stroj \u2013 sm\u011b\u0159uj\u00edc\u00ed dozadu, proti sm\u011bru j\u00edzdy.<\/p>\n

Ten\/Ta\/To planetov\u00e1 p\u0159evodovka s pohonem p\u00e1s\u016f<\/a> mus\u00ed tla\u010dit stroj dop\u0159edu proti t\u00e9to reak\u010dn\u00ed s\u00edle kontrolovanou, konstantn\u00ed rychlost\u00ed. Reak\u010dn\u00ed s\u00edla nen\u00ed konstantn\u00ed \u2013 kol\u00eds\u00e1, jak ka\u017ed\u00fd zub zasahuje do \u0159ezn\u00e9 plochy a vystupuje z n\u00ed, a dramaticky se zvy\u0161uje, kdy\u017e zub naraz\u00ed na tvrdou sk\u00e1lu, balvan nebo zakopan\u00e9 in\u017een\u00fdrsk\u00e9 s\u00edt\u011b. Pohon p\u00e1su mus\u00ed tyto v\u00fdkyvy absorbovat bez zm\u011bny rychlosti posuvu vp\u0159ed.<\/p>\n

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Jak vznik\u00e1 reak\u010dn\u00ed s\u00edla<\/div>\n

Zuby \u0159et\u011bzu \u0159e\u017eou sm\u011brem nahoru (od dna v\u00fdkopu sm\u011brem k povrchu). Horizont\u00e1ln\u00ed slo\u017eka \u0159ezn\u00e9 s\u00edly tla\u010d\u00ed dozadu na r\u00e1m stroje. U velk\u00e9ho r\u00fdpadla na potrub\u00ed, kter\u00e9 \u0159e\u017ee horninu v hloubce 1,5 m, m\u016f\u017ee celkov\u00e1 reak\u010dn\u00ed s\u00edla \u0159et\u011bzu dos\u00e1hnout 80 000 a\u017e 150 000 N \u2013 srovnateln\u011b s ta\u017enou silou buldozeru t\u0159\u00eddy D7. Na rozd\u00edl od buldozeru (kter\u00fd tla\u010d\u00ed definovan\u00fd objem materi\u00e1lu) v\u0161ak reak\u010dn\u00ed s\u00edla r\u00fdpadla kol\u00eds\u00e1 o \u00b130 a\u017e 501 TP3T od zubu k zubu, proto\u017ee tvrdost materi\u00e1lu se m\u011bn\u00ed v \u010deln\u00ed plo\u0161e v\u00fdkopu.<\/p>\n

Kritick\u00fd bod:<\/strong> Pohon p\u00e1su mus\u00ed udr\u017eovat konstantn\u00ed rychlost posuvu vp\u0159ed I NAVZD\u016eLE t\u011bmto kol\u00eds\u00e1n\u00edm s\u00edly \u00b150% \u2013 proto\u017ee rychlost posuvu vp\u0159ed ur\u010duje \u0161\u00ed\u0159ku v\u00fdkopu. Pokud se pohon p\u00e1su zpomal\u00ed, kdy\u017e \u0159et\u011bz naraz\u00ed na tvrd\u00fd materi\u00e1l, v\u00fdkop se z\u00fa\u017e\u00ed. Pokud se zrychl\u00ed, kdy\u017e \u0159et\u011bz vstoup\u00ed do m\u011bkk\u00e9 z\u00f3ny, v\u00fdkop se roz\u0161\u00ed\u0159\u00ed. Ob\u011b podm\u00ednky ohro\u017euj\u00ed toleranci instalace potrub\u00ed.<\/div>\n<\/div>\n
\"Planetov\u00e1<\/p>\n
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Pohon p\u00e1s\u016f se tla\u010d\u00ed dop\u0159edu, zat\u00edmco \u0159ezac\u00ed \u0159et\u011bz se tla\u010d\u00ed dozadu \u2013 koncov\u00fd pohon vyrovn\u00e1v\u00e1 s\u00edly kontrolovanou rychlost\u00ed posuvu.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Sk\u00e1la vs. zemina \u2013 dva z\u00e1sadn\u011b odli\u0161n\u00e9 pracovn\u00ed cykly pohonu p\u00e1s\u016f<\/h2>\n

Rozd\u00edl mezi hlouben\u00edm zeminy a hlouben\u00edm horniny nen\u00ed jen ot\u00e1zkou stupn\u011b \u2013 zcela m\u011bn\u00ed charakter zat\u00ed\u017een\u00ed ryhovan\u00e9 dr\u00e1hy. Hlouben\u00ed zeminy vytv\u00e1\u0159\u00ed m\u00edrn\u00e9, relativn\u011b stabiln\u00ed reak\u010dn\u00ed s\u00edly. Hlouben\u00ed horniny vytv\u00e1\u0159\u00ed vysok\u00e9, prudce kol\u00edsaj\u00edc\u00ed reak\u010dn\u00ed s\u00edly s n\u00e1razov\u00fdmi hroty, kter\u00e9 mohou dos\u00e1hnout trojn\u00e1sobku pr\u016fm\u011bru.<\/p>\n

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Parametr<\/th>\nHlouben\u00ed p\u016fdy (j\u00edl\/p\u00edsek)<\/th>\nHlouben\u00ed skaln\u00edch p\u0159\u00edkop\u016f (v\u00e1penec\/p\u00edskovec)<\/th>\n<\/tr>\n<\/thead>\n
Typick\u00e1 hmotnost stroje<\/td>\n5 \u2013 25 t<\/td>\n30 \u2013 65 tun<\/td>\n<\/tr>\n
Hloubka v\u00fdkopu<\/td>\n0,3 \u2013 2,0 m<\/td>\n0,5 \u2013 3,0 m<\/td>\n<\/tr>\n
Rychlost posuvu<\/td>\n3 \u2013 15 m\/min<\/td>\n0,3 \u2013 3 m\/min<\/td>\n<\/tr>\n
S\u00edla \u0159et\u011bzov\u00e9 reakce<\/td>\n15 000 \u2013 50 000 N<\/td>\n80 000 \u2013 200 000 N<\/td>\n<\/tr>\n
Kol\u00eds\u00e1n\u00ed s\u00edly<\/td>\n\u00b110 \u2013 20%<\/td>\n\u00b130 \u2013 50%<\/td>\n<\/tr>\n
N\u00e1razov\u00fd hrot (balvan\/pevnostn\u00ed k\u00e1men)<\/td>\n1,5n\u00e1sobek pr\u016fm\u011bru<\/td>\n2,5 \u2013 3x pr\u016fm\u011br<\/td>\n<\/tr>\n
To\u010div\u00fd moment pohonu p\u00e1s\u016f na p\u00e1s<\/td>\n8 000 \u2013 25 000 Nm<\/td>\n40 000 \u2013 100 000 Nm<\/td>\n<\/tr>\n
Doporu\u010den\u00fd SF<\/td>\n1.5<\/td>\n2,0 \u2013 2,5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Pro\u010d je hustota materi\u00e1lu p\u0159i hlouben\u00ed hornin o 2,0 a\u017e 2,5 stupn\u011b vy\u0161\u0161\u00ed ne\u017e u jak\u00e9hokoli bagru nebo buldozeru:<\/strong> Kol\u00eds\u00e1n\u00ed s\u00edly \u00b1501 TP3T v z\u00e1vislosti na zm\u011bn\u011b materi\u00e1lu mezi zuby znamen\u00e1, \u017ee maxim\u00e1ln\u00ed okam\u017eit\u00fd to\u010div\u00fd moment pravideln\u011b dosahuje 1501 TP3T pr\u016fm\u011bru. Nav\u00edc n\u00e1razov\u00e9 hroty od balvan\u016f nebo tvrd\u00fdch vm\u011bstk\u016f p\u0159id\u00e1vaj\u00ed dal\u0161\u00ed 2,5 a\u017e 3n\u00e1sobn\u00fd multiplik\u00e1tor. Tato kombinace vytv\u00e1\u0159\u00ed pom\u011br maxim\u00e1ln\u00edho a pr\u016fm\u011brn\u00e9ho to\u010div\u00e9ho momentu 3,7 a\u017e 4,5n\u00e1sobek v hornin\u011b \u2013 co\u017e je nejvy\u0161\u0161\u00ed hodnota ze v\u0161ech aplikac\u00ed s trval\u00fdm provozem na p\u00e1sech. SF 2,0 a\u017e 2,5 pokr\u00fdv\u00e1 statistick\u00e9 rozlo\u017een\u00ed t\u011bchto \u0161pi\u010dek, aby bylo zaji\u0161t\u011bno, \u017ee p\u0159evodovka p\u0159e\u017eije i ty nejhor\u0161\u00ed horninov\u00e9 podm\u00ednky po celou dobu \u017eivotnosti.<\/p>\n<\/div>\n<\/section>\n

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Konzistence rychlosti posuvu \u2013 Pro\u010d pohon p\u00e1s\u016f ur\u010duje kvalitu v\u00fdkopu<\/h2>\n

Potrubn\u00ed v\u00fdkop m\u00e1 t\u0159i kritick\u00e9 rozm\u011bry: hloubku (ur\u010denou polohou v\u00fdlo\u017en\u00edku), \u0161\u00ed\u0159ku (ur\u010denou \u0161\u00ed\u0159kou \u0159et\u011bzu a rychlost\u00ed posuvu vp\u0159ed) a \u00fahel st\u011bny (ur\u010den\u00fd interakc\u00ed mezi rychlost\u00ed \u0159et\u011bzu a rychlost\u00ed posuvu vp\u0159ed). Pohon p\u00e1su \u0159\u00edd\u00ed rychlost posuvu vp\u0159ed \u2013 a t\u00edm p\u0159\u00edmo \u0159\u00edd\u00ed \u0161\u00ed\u0159ku v\u00fdkopu a kvalitu st\u011bny.<\/p>\n

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P\u0159\u00edli\u0161 rychle \u2192 P\u0159\u00edkop s nadm\u011brnou \u0161\u00ed\u0159kou<\/div>\n

Pokud pohon p\u00e1s\u016f tla\u010d\u00ed stroj vp\u0159ed rychleji, ne\u017e \u0159et\u011bz dok\u00e1\u017ee odstra\u0148ovat materi\u00e1l, jsou zuby \u0159et\u011bzu nuceny vy\u0159ez\u00e1vat \u0161ir\u0161\u00ed oblouk \u2013 \u010d\u00edm\u017e vznik\u00e1 v\u00fdkop \u0161ir\u0161\u00ed ne\u017e \u0161\u00ed\u0159ka \u0159et\u011bzu. P\u0159\u00edli\u0161 \u0161irok\u00fd v\u00fdkop vy\u017eaduje v\u00edce podkladov\u00e9ho materi\u00e1lu, v\u00edce z\u00e1sypu a v\u011bt\u0161\u00ed zhutn\u011bn\u00ed \u2013 co\u017e zvy\u0161uje n\u00e1klady na ka\u017ed\u00fd metr instalovan\u00e9ho potrub\u00ed.<\/p>\n<\/div>\n

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P\u0159\u00edli\u0161 pomal\u00e9 \u2192 Nadm\u011brn\u00e9 \u0159ez\u00e1n\u00ed, po\u0161kozen\u00ed zdi<\/div>\n

Pokud pohon p\u00e1su nedok\u00e1\u017ee udr\u017eet c\u00edlovou rychlost posuvu proti s\u00edle \u0159et\u011bzov\u00e9 reakce (zastaven\u00ed nebo zpomalen\u00ed p\u0159i \u0161pi\u010dkov\u00e9m zat\u00ed\u017een\u00ed), \u0159et\u011bz recirkuluje ji\u017e na\u0159ezan\u00fdm materi\u00e1lem \u2013 pl\u00fdtv\u00e1 energi\u00ed, p\u0159eh\u0159\u00edv\u00e1 zuby a le\u0161t\u00ed st\u011bny v\u00fdkopu do hladka. Le\u0161t\u011bn\u00e9 st\u011bny v j\u00edlovit\u00fdch p\u016fd\u00e1ch ztr\u00e1cej\u00ed t\u0159ec\u00ed vazbu se z\u00e1sypem z\u00e1vislou na drsnosti, co\u017e sni\u017euje kvalitu podep\u0159en\u00ed potrub\u00ed.<\/p>\n<\/div>\n

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Variabiln\u00ed rychlost \u2192 Vlnit\u00e9 dno p\u0159\u00edkopu<\/div>\n

Pokud rychlost pohonu p\u00e1s\u016f kol\u00eds\u00e1 v z\u00e1vislosti na zm\u011bn\u00e1ch s\u00edly \u0159et\u011bzov\u00e9 reakce \u2013 zrychluje v m\u011bkk\u00fdch z\u00f3n\u00e1ch a zpomaluje v tvrd\u00fdch z\u00f3n\u00e1ch \u2013 m\u011bn\u00ed se vzd\u00e1lenost mezi v\u00fdlo\u017en\u00edkem a zem\u00ed s dop\u0159edn\u00fdm sklonem stroje. V\u00fdsledkem je zvln\u011bn\u00e9 dno v\u00fdkopu, kter\u00e9 nespl\u0148uje toleranci sklonu potrub\u00ed (obvykle \u00b125 mm na libovoln\u00fd 3metrov\u00fd rozsah). Potrub\u00ed nem\u016f\u017ee kop\u00edrovat vlny a je nutn\u00e9 podlo\u017een\u00ed nebo nov\u00e9 vyrovn\u00e1n\u00ed ter\u00e9nu \u2013 co\u017e je 10 a\u017e 20kr\u00e1t n\u00e1kladn\u011bj\u0161\u00ed na metr ne\u017e proveden\u00ed spr\u00e1vn\u00e9 pr\u00e1ce napoprv\u00e9.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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V\u00fdpo\u010det momentu pro hlouben\u00ed v\u00fdkopu \u2013 dimenzov\u00e1n\u00ed pohonu p\u00e1s\u016f pro r\u00fdpadlo na horninov\u00e9 potrub\u00ed<\/h2>\n
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Velikost p\u00e1sov\u00e9ho pohonu r\u00fdpadla na horninu \u2013 stroj 45 t, hloubka 1,5 m ve v\u00e1penci<\/div>\n
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Vzhledem k:<\/div>\n
\u00a0\u00a0Hmotnost stroje: 45 000 kg<\/div>\n
\u00a0\u00a0\u0158et\u011bzov\u00e1 reak\u010dn\u00ed s\u00edla (pr\u016fm\u011br, v\u00e1penec): 120 000 N<\/div>\n
\u00a0\u00a0Rychlost posuvu: 1,2 m\/min<\/div>\n
\u00a0\u00a0Pohony p\u00e1s\u016f: 2<\/div>\n
\u00a0\u00a0Rozte\u010d \u0159et\u011bzov\u00e9ho kola: 600 mm (r = 0,3 m)<\/div>\n
\u00a0\u00a0Stupe\u0148 (koridor potrub\u00ed): 5%<\/div>\n
Krok 1 \u2014 \u0158et\u011bzov\u00e1 reakce na skladbu:<\/div>\n
\u00a0\u00a0F_\u0159et\u011bzec = 120 000 \/ 2 = 60 000 N na kolej<\/strong><\/div>\n
Krok 2 \u2013 Valiv\u00fd odpor na tra\u0165 (m\u011bkk\u00fd koridor, 6%):<\/div>\n
\u00a0\u00a0F_roll = (45 000 x 9,81 x 0,06) \/ 2 = 13 244 severn\u00ed \u0161\u00ed\u0159ky<\/strong><\/div>\n
Krok 3 \u2013 Odolnost proti svahu na koleji:<\/div>\n
\u00a0\u00a0F_stupe\u0148 = (45 000 x 9,81 x sin(2,86)) \/ 2 = 11 019 severn\u00ed \u0161\u00ed\u0159ky<\/strong><\/div>\n
Krok 4 \u2013 Celkov\u00fd trval\u00fd to\u010div\u00fd moment na stopu:<\/div>\n
\u00a0\u00a0T = (60 000 + 13 244 + 11 019) x 0,3<\/div>\n
\u00a0\u00a0T = 25 279 Nm trval\u00e9ho to\u010div\u00e9ho momentu<\/strong><\/div>\n
Krok 5 \u2013 Pou\u017eit\u00ed SF = 2,0 (hlouben\u00ed hornin, vysok\u00e9 kol\u00eds\u00e1n\u00ed):<\/div>\n
\u00a0\u00a0Po\u017eadovan\u00e1_t = 25 279 x 2,0 = Minim\u00e1ln\u00ed trval\u00fd to\u010div\u00fd moment 50 558 Nm<\/strong><\/div>\n
\u2192 \u0158et\u011bzov\u00e1 reakce (60 000 N) je 71% celkov\u00e9 s\u00edly \u2013 dominuje dimenzov\u00e1n\u00ed<\/div>\n
\u2192 P\u00e1sov\u00fd pohon Korea Ever-Power 55 000 Nm p\u0159i 120:1 \u2714<\/div>\n<\/div>\n<\/div>\n

V\u0161imn\u011bte si, \u017ee s\u00edla \u0159et\u011bzov\u00e9 reakce p\u0159isp\u00edv\u00e1 k celkov\u00e9mu po\u017eadavku na to\u010div\u00fd moment pohonu p\u00e1s\u016f \u010d\u00e1stkou 711 TP3T \u2013 mnohem v\u00edce ne\u017e valiv\u00fd odpor (161 TP3T) nebo odpor ve svahu (131 TP3T). Toto je ur\u010duj\u00edc\u00ed charakteristika dimenzov\u00e1n\u00ed pohonu p\u00e1s\u016f r\u00fdpadla: specifikaci ur\u010duje reak\u010dn\u00ed s\u00edla pracovn\u00edho n\u00e1stroje, nikoli hmotnost stroje nebo ter\u00e9n. R\u00fdpadlo na rovn\u00e9m ter\u00e9nu s nulov\u00fdm valiv\u00fdm odporem st\u00e1le vy\u017eaduje 711 TP3T kapacity pohonu p\u00e1s\u016f, aby p\u0159ekonalo \u0159et\u011bzovou reakci. Korea Ever-Power<\/a> poskytuje technickou podporu pro aplikace, kter\u00e1 slad\u00ed specifikaci p\u00e1sov\u00e9ho pohonu s konkr\u00e9tn\u00edm v\u00fdkonem \u0159et\u011bzu a \u0159ezn\u00fdm materi\u00e1lem pro ka\u017ed\u00fd projekt r\u00fdpadla.<\/p>\n<\/section>\n

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

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T\u0159i re\u017eimy selh\u00e1n\u00ed specifick\u00e9 pro p\u00e1sov\u00e9 pohony r\u00fdhova\u010d\u016f<\/h2>\n
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1<\/div>\n
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\u00danava dr\u00e1\u017eek centr\u00e1ln\u00edho kola v d\u016fsledku trval\u00e9ho kol\u00eds\u00e1n\u00ed to\u010div\u00e9ho momentu<\/div>\n

S\u00edla \u0159et\u011bzov\u00e9 reakce kol\u00eds\u00e1 o \u00b130 a\u017e 50% p\u0159i frekvenci z\u00e1b\u011bru zub\u016f \u2013 typicky 5 a\u017e 15 Hz. To vytv\u00e1\u0159\u00ed oscilaci to\u010div\u00e9ho momentu o frekvenci 5 a\u017e 15 Hz na vstupu pohonu p\u00e1s\u016f, kter\u00e1 se p\u0159en\u00e1\u0161\u00ed p\u0159\u00edmo p\u0159es dr\u00e1\u017ekov\u00e1n\u00ed centr\u00e1ln\u00edho kola. Na rozd\u00edl od jednor\u00e1zov\u00e9ho odtr\u017een\u00ed na vrtn\u00e9 souprav\u011b je tato oscilace kontinu\u00e1ln\u00ed po celou dobu hlouben\u00ed v\u00fdkopu \u2013 potenci\u00e1ln\u011b i hodiny v kuse. Polom\u011br ko\u0159ene dr\u00e1\u017eky vydr\u017e\u00ed miliony vysokofrekven\u010dn\u00edch cykl\u016f nap\u011bt\u00ed za sez\u00f3nu, co\u017e vede ke vzniku \u00fanavov\u00e9 trhliny v ko\u0159eni dr\u00e1\u017eky. Jakmile se trhlina roz\u0161\u00ed\u0159\u00ed, zub dr\u00e1\u017eky se zlom\u00ed a pohon se ztrat\u00ed.<\/p>\n

Prevence: Pou\u017eijte kolejnicov\u00e9 pohony s dr\u00e1\u017ekovan\u00fdmi rozhran\u00edmi s tryskan\u00fdm povrchem a kalen\u00fdm povrchem, kter\u00e9 jsou dimenzov\u00e1ny na vysokocyklovou \u00fanavu. Vstupn\u00ed dr\u00e1\u017ekov\u00e1n\u00ed kontrolujte po ka\u017ed\u00fdch 2 000 hodin\u00e1ch provozu pomoc\u00ed magnetick\u00e9 pr\u00e1\u0161kov\u00e9 kontroly.<\/div>\n<\/div>\n<\/div>\n
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2<\/div>\n
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Koroze zub\u016f planetov\u00e9ho kola v d\u016fsledku nep\u0159etr\u017eit\u00e9ho vysokofrekven\u010dn\u00edho cyklick\u00e9ho zat\u00ed\u017een\u00ed<\/div>\n

Kol\u00edsav\u00e1 \u0159et\u011bzov\u00e1 reak\u010dn\u00ed s\u00edla vytv\u00e1\u0159\u00ed pulzuj\u00edc\u00ed zat\u00ed\u017een\u00ed na ka\u017ed\u00e9m zubu planetov\u00e9ho kola se stejnou frekvenc\u00ed 5 a\u017e 15 Hz. Ka\u017ed\u00fd povrch zubu vydr\u017e\u00ed 18 000 a\u017e 54 000 cykl\u016f nap\u011bt\u00ed za hodinu hlouben\u00ed horniny. B\u011bhem 3 000hodinov\u00e9 kari\u00e9ry hlouben\u00ed horniny se na povr\u0161\u00edch zub\u016f nashrom\u00e1\u017ed\u00ed 54 a\u017e 162 milion\u016f cykl\u016f kontaktn\u00edho nap\u011bt\u00ed \u2013 co\u017e je vysokocyklov\u00e9 \u00fanavov\u00e9 zat\u00ed\u017een\u00ed, kter\u00e9 p\u0159ekra\u010duje mez odolnosti standardn\u00ed cementovan\u00e9 ozuben\u00e9 oceli 20CrMnTi, pokud kontaktn\u00ed nap\u011bt\u00ed nen\u00ed udr\u017eov\u00e1no v mez\u00edch odpov\u00eddaj\u00edc\u00edm dimenzov\u00e1n\u00edm (SF = 2,0+).<\/p>\n

Prevence: Pro ra\u017een\u00ed hornin pou\u017eijte SF = 2,0 a\u017e 2,5, aby se kontaktn\u00ed nap\u011bt\u00ed zub\u016f udr\u017eelo pod hranic\u00ed vysokocyklov\u00e9 \u017eivotnosti. Pro prodlou\u017een\u00ed kontaktn\u00ed \u00fanavov\u00e9 \u017eivotnosti pou\u017eijte ozuben\u00e1 kola dle DIN t\u0159\u00eddy 5 s p\u0159epracovan\u00fdmi boky.<\/div>\n<\/div>\n<\/div>\n
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3<\/div>\n
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Uvoln\u011bn\u00ed pouzdra a mont\u00e1\u017en\u00edho \u0161roubu v d\u016fsledku p\u0159en\u00e1\u0161en\u00fdch vibrac\u00ed<\/div>\n

Hlouben\u00ed hornin generuje nep\u0159etr\u017eit\u00e9 vibrace s n\u00edzkou amplitudou a vysokou frekvenc\u00ed, kter\u00e9 se \u0161\u00ed\u0159\u00ed r\u00e1mem stroje k mont\u00e1\u017en\u00edm \u0161roub\u016fm pohonu p\u00e1s\u016f. Frekvence vibrac\u00ed (5 a\u017e 15 Hz od zub\u016f \u0159et\u011bzu plus vy\u0161\u0161\u00ed harmonick\u00e9 ze z\u00e1b\u011bru v\u00e1le\u010dk\u016f \u0159et\u011bzu) udr\u017euje mont\u00e1\u017en\u00ed \u0161rouby v nep\u0159etr\u017eit\u00e9m stavu mikropohybu, kter\u00fd uvol\u0148uje p\u0159edp\u011bt\u00ed po stovky hodin. Pokud p\u0159edp\u011bt\u00ed \u0161roub\u016f klesne pod 80% specifikovan\u00e9ho kroutic\u00edho momentu, m\u016f\u017ee se sk\u0159\u00ed\u0148 pohonu p\u00e1s\u016f posunout na sv\u00e9 mont\u00e1\u017en\u00ed plo\u0161e \u2013 co\u017e vede k nespr\u00e1vn\u00e9mu vyrovn\u00e1n\u00ed \u0159et\u011bzov\u00e9ho kola a rychl\u00e9mu opot\u0159eben\u00ed kolej\u00ed a potenci\u00e1ln\u00edmu vykolejen\u00ed kolej\u00ed.<\/p>\n

Prevence: Na v\u0161echny mont\u00e1\u017en\u00ed \u0161rouby pou\u017eijte pojistku z\u00e1vit\u016f (st\u0159edn\u00ed pevnost). Kontrolujte utahovac\u00ed moment \u0161roub\u016f ka\u017ed\u00fdch 500 hodin. U r\u00fdhovac\u00edch stroj\u016f na horninu pou\u017eijte pojistn\u00e9 podlo\u017eky Nord-Lock, kter\u00e9 odol\u00e1vaj\u00ed povolov\u00e1n\u00ed vibracemi.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro r\u00fdpadla \u2013 \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
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Jak se pracovn\u00ed cyklus p\u00e1sov\u00e9ho pohonu r\u00fdpadla srovn\u00e1v\u00e1 s buldozerem?<\/h3>\n

Oba typy aplikac\u00ed se vyzna\u010duj\u00ed vysok\u00fdm pracovn\u00edm cyklem: buldozer s trval\u00fdm to\u010div\u00fdm momentem 60 a\u017e 851 TP3T, r\u00fdpadlo s trval\u00fdm to\u010div\u00fdm momentem 50 a\u017e 751 TP3T. Kritick\u00fdm rozd\u00edlem je charakter zat\u00ed\u017een\u00ed. Zat\u00ed\u017een\u00ed buldozeru je relativn\u011b stabiln\u00ed \u2013 radlice tla\u010d\u00ed konzistentn\u00ed objem zeminy. Zat\u00ed\u017een\u00ed r\u00fdpadla kol\u00eds\u00e1 o frekvenci 5 a\u017e 15 Hz, jakmile se jednotliv\u00e9 zuby \u0159et\u011bzu zapoj\u00ed a opust\u00ed \u0159eznou plochu. Toto vysokofrekven\u010dn\u00ed kol\u00eds\u00e1n\u00ed zp\u016fsobuje \u00fanavov\u00e9 po\u0161kozen\u00ed na \u00farovni kontaktu zub\u016f ozuben\u00e9ho kola, kter\u00e9 ust\u00e1len\u00e9 zat\u00ed\u017een\u00ed stejn\u00fdm pr\u016fm\u011brn\u00fdm to\u010div\u00fdm momentem nezp\u016fsobuje. P\u00e1sov\u00fd pohon dimenzovan\u00fd pro buldozer s trval\u00fdm to\u010div\u00fdm momentem 50 000 Nm bude u r\u00fdpadla na horninu p\u0159i stejn\u00e9m pr\u016fm\u011brn\u00e9m to\u010div\u00e9m momentu doch\u00e1zet k d\u016flkov\u00fdm koroz\u00edm 2 a\u017e 3kr\u00e1t rychleji \u2013 proto\u017ee kol\u00eds\u00e1n\u00ed mezi \u0161pi\u010dkou a pr\u016fm\u011brem zp\u016fsobuje \u00fanavov\u00e9 po\u0161kozen\u00ed, nikoli pouze pr\u016fm\u011br.<\/p>\n<\/div>\n

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Jak\u00e1 je typick\u00e1 \u017eivotnost p\u00e1sov\u00e9ho pohonu r\u00fdpadla?<\/h3>\n

Hlouben\u00ed v\u00fdkop\u016f v zemin\u011b (j\u00edl, p\u00edsek, sm\u011bs): 6 000 a\u017e 10 000 hodin. Hlouben\u00ed v\u00fdkop\u016f v hornin\u011b (v\u00e1penec, p\u00edskovec, b\u0159idlice): 3 000 a\u017e 5 000 hodin. \u017divotnost v\u00fdkop\u016f v hornin\u011b je omezena \u00fanavou v d\u016fsledku vysokofrekven\u010dn\u00edho kontaktu na povrchu zub\u016f ozuben\u00fdch kol a \u00fanavou dr\u00e1\u017eek na rozhran\u00ed motoru. Anal\u00fdza oleje v 500hodinov\u00fdch intervalech \u2013 sledov\u00e1n\u00ed trendu koncentrace \u017eelezn\u00fdch \u010d\u00e1stic \u2013 je nejspolehliv\u011bj\u0161\u00edm prediktorem zb\u00fdvaj\u00edc\u00ed \u017eivotnosti ozuben\u00fdch kol p\u0159i v\u00fdkopech v hornin\u011b.<\/p>\n<\/div>\n

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Mohu pou\u017e\u00edt stejnou specifikaci pohonu p\u00e1s\u016f pro hlouben\u00ed p\u0159\u00edkop\u016f v zemin\u011b i hornin\u011b?<\/h3>\n

Pouze pokud je specifikace nastavena pro horninu. Pohon p\u00e1su dimenzovan\u00fd pro hlouben\u00ed zeminy s objemov\u00fdm pr\u016ftokem = 1,5 bude pro horninu s objemov\u00fdm pr\u016ftokem = 2,0 a\u017e 2,5 poddimenzovan\u00fd \u2013 \u0159et\u011bzov\u00e1 reak\u010dn\u00ed s\u00edla v hornin\u011b je 3 a\u017e 4kr\u00e1t vy\u0161\u0161\u00ed ne\u017e v zemin\u011b p\u0159i stejn\u00e9 hloubce v\u00fdkopu. Pokud se stroj setk\u00e1 s ob\u011bma podm\u00ednkami (b\u011b\u017en\u00e9 u projekt\u016f nadzemn\u00edch potrub\u00ed), dimenzujte pohon p\u00e1su pro nejhor\u0161\u00ed mo\u017en\u00fd p\u0159\u00edpad horninov\u00e9ho \u00faseku. Pohon p\u00e1su bude pro zeminov\u00e9 \u00faseky p\u0159edimenzov\u00e1n \u2013 tato nadm\u011brn\u00e1 kapacita v\u0161ak zaji\u0161\u0165uje del\u0161\u00ed \u017eivotnost a ni\u017e\u0161\u00ed nam\u00e1h\u00e1n\u00ed p\u0159evodovky v zemi, co\u017e \u010d\u00e1ste\u010dn\u011b kompenzuje zrychlen\u00e9 opot\u0159eben\u00ed b\u011bhem hlouben\u00ed horninov\u00fdch \u00fasek\u016f.<\/p>\n<\/div>\n

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Pro\u010d se upev\u0148ovac\u00ed \u0161rouby pohonu p\u00e1s\u016f r\u00fdhova\u010de povoluj\u00ed rychleji ne\u017e u jin\u00fdch stroj\u016f?<\/h3>\n

\u0158et\u011bzov\u00fd \u0159ezac\u00ed mechanismus p\u0159en\u00e1\u0161\u00ed nep\u0159etr\u017eit\u00e9 vibrace o frekvenc\u00edch 5 a\u017e 15 Hz r\u00e1mem stroje. Toto frekven\u010dn\u00ed p\u00e1smo se nach\u00e1z\u00ed v rozsahu, kde je relaxace p\u0159edp\u011bt\u00ed \u0161roubu nejaktivn\u011bj\u0161\u00ed \u2013 mikropohyby jsou p\u0159\u00edli\u0161 mal\u00e9 na to, aby p\u0159eru\u0161ily t\u0159en\u00ed z\u00e1vitu v jednom cyklu, ale hromad\u00ed se v pr\u016fb\u011bhu tis\u00edc\u016f cykl\u016f a postupn\u011b posunou \u0161roub dozadu. Jin\u00e9 p\u00e1sov\u00e9 stroje (rypadla, buldozery) generuj\u00ed vibrace p\u0159i ni\u017e\u0161\u00edch frekvenc\u00edch (kontakt s p\u00e1sem p\u0159i 1 a\u017e 3 Hz), kter\u00e9 jsou m\u00e9n\u011b \u00fa\u010dinn\u00e9 p\u0159i vyvol\u00e1n\u00ed ztr\u00e1ty p\u0159edp\u011bt\u00ed \u0161roubu. Pro mont\u00e1\u017e pohonu p\u00e1s\u016f r\u00fdpadla jsou nezbytn\u00e9 pojistn\u00e9 hmoty pro z\u00e1vity nebo kl\u00ednov\u00e9 pojistn\u00e9 podlo\u017eky \u2013 standardn\u00ed pru\u017en\u00e9 podlo\u017eky nejsou dosta\u010duj\u00edc\u00ed.<\/p>\n<\/div>\n

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Dod\u00e1v\u00e1 Korea Ever-Power kolejnicov\u00e9 pohony ur\u010den\u00e9 pro vysokofrekven\u010dn\u00ed kol\u00edsav\u00e9 z\u00e1t\u011b\u017ee?<\/h3>\n

Ano. Spole\u010dnost Korea Ever-Power vyr\u00e1b\u00ed planetov\u00e9 p\u0159evodovky s p\u00e1sov\u00fdm pohonem pro aplikace v horninov\u00fdch v\u00fdkopech s p\u0159elit\u00fdm ozuben\u00fdm kolem dle DIN t\u0159\u00eddy 5, zu\u0161lecht\u011bn\u00fdmi dr\u00e1\u017ekovan\u00fdmi rozhran\u00edmi s povrchovou \u00fapravou a mont\u00e1\u017en\u00edmi opat\u0159en\u00edmi odoln\u00fdmi proti vibrac\u00edm. K dispozici od 8 000 do 100 000 Nm pro r\u00fdpadla na zeminu a\u017e po r\u00fdpadla na potrub\u00ed pro t\u011b\u017ek\u00e9 horniny. Uve\u010fte v\u00fdkon \u0159et\u011bzu v kon\u00edch, o\u010dek\u00e1van\u00fd \u0159ezn\u00fd materi\u00e1l (t\u0159\u00edda zeminy nebo typ horniny) a hloubku v\u00fdkopu pro specifikaci odpov\u00eddaj\u00edc\u00ed skute\u010dn\u00e9 reak\u010dn\u00ed s\u00edle \u0159et\u011bzu.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Pohony p\u00e1s\u016f pro r\u00fdpadla \u2013 dimenzov\u00e1ny pro \u0159et\u011bzovou reakci<\/div>\n

Spole\u010dnost Korea Ever-Power dod\u00e1v\u00e1 planetov\u00e9 p\u0159evodovky s pohonem p\u00e1s\u016f pro r\u00fdpadla od 8 000 do 100 000 Nm pro r\u00fdhov\u00e1n\u00ed zeminy a horniny. Vysokocyklov\u00e9 p\u0159evodovky odoln\u00e9 \u00fanav\u011b materi\u00e1lu, uchycen\u00ed odoln\u00e9 proti vibrac\u00edm a dr\u00e1\u017ekovan\u00e1 rozhran\u00ed z tryskan\u00e9ho kovu pro r\u00fdhov\u00e1n\u00ed potrub\u00ed. Pro doporu\u010den\u00ed specifikace uve\u010fte model r\u00fdpadla a \u0159ezn\u00fd materi\u00e1l.<\/p>\n<\/div>\n

Zobrazit sortiment pohonu p\u00e1s\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 Trenchers Track Drive Planetary Gearbox for Trenchers \u2014 The Final Drive That Fights Its Own Machine A bulldozer pushes dirt forward. A trencher cuts downward \u2014 and the cutting chain pushes the machine backward. The track drive must overcome this self-generated reaction force while maintaining a feed rate so […]<\/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-1055","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\/1055","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=1055"}],"version-history":[{"count":2,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1055\/revisions"}],"predecessor-version":[{"id":1059,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1055\/revisions\/1059"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/media?parent=1055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/categories?post=1055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/tags?post=1055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}