{"id":1063,"date":"2026-06-23T06:02:42","date_gmt":"2026-06-23T06:02:42","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?p=1063"},"modified":"2026-06-23T06:02:42","modified_gmt":"2026-06-23T06:02:42","slug":"track-drive-planetary-gearbox-for-surface-miners","status":"publish","type":"post","link":"https:\/\/planetary-gearboxes.com\/cs\/track-drive-planetary-gearbox-for-surface-miners\/","title":{"rendered":"Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro povrchov\u00e9 doly"},"content":{"rendered":"
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\"Planetov\u00e1<\/p>\n
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Aplika\u010dn\u00ed in\u017een\u00fdrstv\u00ed<\/span>
\nPovrchov\u00e9 t\u011b\u017eby \u00b7 Kontinu\u00e1ln\u00ed t\u011b\u017eba<\/span><\/div>\n

Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro povrchov\u00e9 doly \u2013 200 tun pro plynul\u00fd posun pevnou horninou<\/h1>\n

\u017d\u00e1dn\u00e9 vrt\u00e1n\u00ed. \u017d\u00e1dn\u00e9 trhac\u00ed pr\u00e1ce. \u017d\u00e1dn\u00e9 sekund\u00e1rn\u00ed drcen\u00ed v porubu. Povrchov\u00fd dob\u00fdvac\u00ed stroj nahrazuje v\u0161echny t\u0159i operace jedin\u00fdm strojem, kter\u00fd jede vp\u0159ed a t\u011b\u017e\u00ed miner\u00e1l p\u0159\u00edmo z lo\u017eiska \u2013 a\u2026 planetov\u00e1 p\u0159evodovka s pohonem p\u00e1s\u016f<\/strong> To, co tento 200tunov\u00fd stroj vylep\u0161uje, mus\u00ed udr\u017eovat tak p\u0159esnou rychlost posuvu, aby \u0159ezan\u00fd produkt spl\u0148oval specifikaci velikosti bez dal\u0161\u00edho zpracov\u00e1n\u00ed.<\/p>\n

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

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Co d\u011bl\u00e1 p\u00e1sov\u00fd pohon povrchov\u00e9ho dolu jedine\u010dn\u00fdm v cel\u00e9m stroj\u00edrenstv\u00ed<\/h2>\n

Povrchov\u00fd dob\u00fdvac\u00ed stroj (naz\u00fdvan\u00fd tak\u00e9 kontinu\u00e1ln\u00ed povrchov\u00fd dob\u00fdvac\u00ed stroj nebo horninov\u00fd \u0159ezac\u00ed stroj) je p\u00e1sov\u00fd stroj s vlastn\u00edm pohonem a p\u0159\u00ed\u010dn\u00fdm \u0159ezn\u00fdm bubnem namontovan\u00fdm pod t\u011blem stroje. P\u0159i pohybu stroje se buben ot\u00e1\u010d\u00ed a \u0159e\u017ee miner\u00e1l nebo horninu do hloubky 200 a\u017e 650 mm na jeden pr\u016fchod, p\u0159i\u010dem\u017e na\u0159ezan\u00fd materi\u00e1l se nakl\u00e1d\u00e1 na dopravn\u00edk, kter\u00fd jej vykl\u00e1d\u00e1 do strany nebo dozadu. planetov\u00e1 p\u0159evodovka s pohonem p\u00e1s\u016f<\/a> kter\u00fd poh\u00e1n\u00ed tento pokrok, \u010del\u00ed kombinaci po\u017eadavk\u016f, se kter\u00fdmi se \u017e\u00e1dn\u00fd jin\u00fd p\u00e1sov\u00fd stroj nesetk\u00e1v\u00e1:<\/p>\n

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Nejt\u011b\u017e\u0161\u00ed aplikace pro pohon p\u00e1sov\u00fdch vozidel s vlastn\u00edm pohonem<\/div>\n

Velk\u00e9 povrchov\u00e9 doly v\u00e1\u017e\u00ed 100 a\u017e 230 tun \u2013 jsou t\u011b\u017e\u0161\u00ed ne\u017e v\u011bt\u0161ina p\u00e1sov\u00fdch je\u0159\u00e1b\u016f a srovnateln\u00e9 s nejv\u011bt\u0161\u00edmi t\u011b\u017eebn\u00edmi buldozery. Na rozd\u00edl od buldozeru (kter\u00fd tla\u010d\u00ed kr\u00e1tk\u00e9 pr\u016fjezdy) se v\u0161ak povrchov\u00fd doly pohybuj\u00ed plynule stovky metr\u016f \u0159eznou rychlost\u00ed. Pohony p\u00e1s\u016f nesou tuto hmotnost p\u0159i trval\u00e9m t\u00e9m\u011b\u0159 maxim\u00e1ln\u00edm to\u010div\u00e9m momentu po cel\u00e9 d\u00e9lce \u0159ezu.<\/p>\n<\/div>\n

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Rychlost posuvu ur\u010duje velikost produktu<\/div>\n

Rychlost \u0159ezac\u00edho bubnu je pevn\u011b dan\u00e1 ot\u00e1\u010dkami motoru. Velikost fragment\u016f produktu je ur\u010dena rychlost\u00ed posuvu \u2013 o kolik se stroj posune vp\u0159ed mezi po sob\u011b jdouc\u00edmi z\u00e1b\u011bry zub\u016f bubnu. P\u0159\u00edli\u0161 rychle: nadm\u011brn\u011b velk\u00e9 fragmenty, kter\u00e9 p\u0159ekra\u010duj\u00ed specifikaci. P\u0159\u00edli\u0161 pomalu: nadm\u011brn\u00e9 mno\u017estv\u00ed prachu a jemn\u00fdch \u010d\u00e1stic, kter\u00e9 sni\u017euj\u00ed v\u00fdt\u011b\u017enost zp\u011btn\u011b z\u00edskan\u00e9ho produktu. Pohon p\u00e1su mus\u00ed udr\u017eovat rychlost posuvu v rozmez\u00ed \u00b15% od c\u00edlov\u00e9 hodnoty, aby bylo spln\u011bno okno velikosti produktu.<\/p>\n<\/div>\n

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18 a\u017e 22 hodin denn\u011b v kamenn\u00e9m prachu<\/div>\n

Povrchov\u00e9 t\u011b\u017eebn\u00ed stroje pracuj\u00ed t\u00e9m\u011b\u0159 nep\u0159etr\u017eit\u011b \u2013 zastavuj\u00ed se pouze kv\u016fli zm\u011bn\u011b sm\u011bny, v\u00fdm\u011bn\u011b zub\u016f a dopln\u011bn\u00ed paliva. Pohony p\u00e1s\u016f b\u011b\u017e\u00ed v nep\u0159etr\u017eit\u00e9m oblaku jemn\u00e9ho horninov\u00e9ho prachu, kter\u00fd je abrazivn\u011bj\u0161\u00ed ne\u017e jak\u00e1koli p\u0159irozen\u00e1 zemina. Tento prach pronik\u00e1 ka\u017ed\u00fdm t\u011bsn\u011bn\u00edm, ka\u017ed\u00fdm pr\u016fduchem a ka\u017edou mezerou v krytu \u2013 co\u017e z povrchov\u00e9ho t\u011b\u017eebn\u00edho stroje d\u011bl\u00e1 nejagresivn\u011bj\u0161\u00ed prost\u0159ed\u00ed pro nas\u00e1v\u00e1n\u00ed prachu ze v\u0161ech pohon\u016f p\u00e1s\u016f na sv\u011bt\u011b.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Reak\u010dn\u00ed s\u00edla \u0159ezn\u00e9ho bubnu \u2013 trval\u00e9 zat\u00ed\u017een\u00ed, kter\u00e9 sni\u017euje valiv\u00fd odpor<\/h2>\n

\u0158ezac\u00ed buben velk\u00e9ho povrchov\u00e9ho dob\u00fdvac\u00edho stroje je poh\u00e1n\u011bn vyhrazen\u00fdm motorem o v\u00fdkonu 500 a\u017e 1 200 kW. Jakmile zuby bubnu zasahuj\u00ed do horniny, horizont\u00e1ln\u00ed reak\u010dn\u00ed s\u00edla tla\u010d\u00ed stroj dozadu \u2013 p\u0159esn\u011b jako u r\u00fdpadla, ale s 3 a\u017e 10n\u00e1sobnou velikost\u00ed s\u00edly, proto\u017ee buben \u0159e\u017ee pevnou horninu na \u0161\u00ed\u0159ku 2,2 a\u017e 4,2 metru v hloubce 200 a\u017e 650 mm.<\/p>\n

\n\n\n\n\n\n\n
T\u0159\u00edda stroje<\/th>\nHmotnost (t)<\/th>\nV\u00fdkon bubnu (kW)<\/th>\nReakce bubnu (kN)<\/th>\nRychlost posuvu<\/th>\nTo\u010div\u00fd moment\/strana trati<\/th>\n<\/tr>\n<\/thead>\n
St\u0159edn\u00ed (buben 2200 mm)<\/td>\n100 \u2013 140<\/td>\n500 \u2013 700<\/td>\n200 \u2013 350<\/td>\n5 \u2013 25 m\/min<\/td>\n60 000 \u2013 110 000 Nm<\/td>\n<\/tr>\n
Velk\u00fd (buben 3800 mm)<\/td>\n180 \u2013 230<\/td>\n800 \u2013 1 200<\/td>\n350 \u2013 600<\/td>\n3 \u2013 18 m\/min<\/td>\n120 000 \u2013 200 000 Nm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Reakce bubnu dominuje je\u0161t\u011b v\u011bt\u0161\u00edm rozd\u00edlem ne\u017e u r\u00fdpa\u010d\u016f:<\/strong> Na 200tunov\u00e9m povrchov\u00e9m dolu t\u011b\u017e\u00edc\u00edm v\u00e1penec v hloubce 400 mm je reak\u010dn\u00ed s\u00edla bubnu 400 kN (200 kN na p\u00e1s). Valiv\u00fd odpor p\u0159i 4% na zhutn\u011bn\u00e9 stole je 200 000 x 9,81 x 0,04 \/ 2 = 39 240 N na p\u00e1s. Reakce bubnu (200 000 N) je 5,1kr\u00e1t<\/strong> valiv\u00fd odpor \u2013 to znamen\u00e1, \u017ee \u0159ezn\u00fd n\u00e1stroj, nikoli hmotnost stroje, ur\u010duje 84% to\u010div\u00e9ho momentu pohonu p\u00e1s\u016f. Pohon p\u00e1s\u016f dimenzovan\u00fd pouze na hmotnost stroje by byl 5kr\u00e1t poddimenzov\u00e1n.<\/p>\n<\/div>\n<\/section>\n

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Rychlost posuvu a kvalita produktu \u2013 p\u0159\u00edm\u00e1 souvislost mezi p\u0159esnost\u00ed pohonu p\u00e1s\u016f a p\u0159\u00edjmy<\/h2>\n

Na rozd\u00edl od v\u0161ech ostatn\u00edch aplikac\u00ed s pohonem p\u00e1s\u016f \u2013 kde p\u0159esnost rychlosti ovliv\u0148uje pouze v\u00fdkon stroje \u2013 rychlost posuvu povrchov\u00e9ho dob\u00fdvac\u00edho stroje p\u0159\u00edmo ovliv\u0148uje hodnotu t\u011b\u017een\u00e9ho produktu. Je to proto, \u017ee velikost fragment\u016f produkovan\u00fdch \u0159ezn\u00fdm bubnem je funkc\u00ed dvou prom\u011bnn\u00fdch: rychlosti bubnu (pevn\u00e1) a rychlosti posuvu stroje (\u0159\u00edzen\u00e9 pohonem p\u00e1s\u016f).<\/p>\n

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

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P\u0159\u00edli\u0161 rychl\u00e9 pod\u00e1v\u00e1n\u00ed \u2192 Nadm\u011brn\u011b velk\u00fd produkt<\/div>\n

Ka\u017ed\u00fd zub bubnu \u0159e\u017ee siln\u011bj\u0161\u00ed t\u0159\u00edsku. \u00dalomky p\u0159ekra\u010duj\u00ed c\u00edlovou specifikaci velikosti. Nadm\u011brn\u011b velk\u00fd materi\u00e1l vy\u017eaduje sekund\u00e1rn\u00ed drcen\u00ed \u2013 co\u017e je krok zpracov\u00e1n\u00ed, kter\u00fd m\u011bl povrchov\u00fd dob\u00fdvac\u00ed stroj eliminovat. N\u00e1klady na sekund\u00e1rn\u00ed drcen\u00ed mohou p\u0159edstavovat 15 a\u017e 251 tun t\/3 tun \u00faspor paliva, kter\u00e9 by ospravedl\u0148ovaly pou\u017eit\u00ed povrchov\u00e9ho dob\u00fdvac\u00edho stroje nam\u00edsto vrt\u00e1n\u00ed a trysk\u00e1n\u00ed.<\/p>\n<\/div>\n

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P\u0159\u00edli\u0161 pomal\u00e9 pod\u00e1v\u00e1n\u00ed \u2192 Nadm\u011brn\u00e9 jemn\u00e9 \u010d\u00e1stice<\/div>\n

Ka\u017ed\u00fd zub znovu \u0159e\u017ee ji\u017e rozdrcen\u00fd materi\u00e1l a produkuje prach a jemn\u00e9 \u010d\u00e1stice men\u0161\u00ed ne\u017e minim\u00e1ln\u00ed u\u017eite\u010dn\u00e1 velikost. V t\u011b\u017eb\u011b uhl\u00ed sni\u017euj\u00ed nadm\u011brn\u00e9 jemn\u00e9 \u010d\u00e1stice v\u00fdt\u011b\u017enost prodejn\u00e9ho produktu o 5 a\u017e 151 TP3T. V agreg\u00e1tn\u00ed v\u00fdrob\u011b maj\u00ed jemn\u00e9 \u010d\u00e1stice pod 4 mm desetinu hodnoty c\u00edlov\u00e9 frakce o velikosti 20 a\u017e 40 mm. Ka\u017ed\u00e9 procento podkro\u010den\u00ed rychlosti posuvu vede k n\u00e1klad\u016fm na zisk.<\/p>\n<\/div>\n

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Krmte p\u0159esn\u011b tak, jak m\u00e1 b\u00fdt \u2192 Produkt s p\u0159\u00edmou distribuc\u00ed<\/div>\n

P\u0159i spr\u00e1vn\u00e9 rychlosti posuvu spad\u00e1 70 a\u017e 851 TP3T \u0159ezan\u00e9ho materi\u00e1lu do c\u00edlov\u00e9ho okna velikosti \u2013 a lze jej nalo\u017eit p\u0159\u00edmo na p\u0159epravn\u00ed vozy bez sekund\u00e1rn\u00edho zpracov\u00e1n\u00ed. Tato schopnost \u201e\u0159ez\u00e1n\u00ed na m\u00edru\u201c je hlavn\u00ed ekonomickou v\u00fdhodou povrchov\u00e9 t\u011b\u017eby oproti vrt\u00e1n\u00ed a trysk\u00e1n\u00ed. Pohon p\u00e1s\u016f, kter\u00fd udr\u017euje konzistenci rychlosti posuvu \u00b151 TP3T, je komponentou, kter\u00e1 tuto v\u00fdhodu zaji\u0161\u0165uje.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Dimenzov\u00e1n\u00ed pohonu p\u00e1s\u016f pro velk\u00fd povrchov\u00fd dolu<\/h2>\n
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Pohon p\u00e1s\u016f povrchov\u00e9ho dolu \u2013 stroj 200 t, buben 900 kW, v\u00e1penec v hloubce 400 mm<\/div>\n
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Vzhledem k:<\/div>\n
\u00a0\u00a0Hmotnost stroje: 200 000 kg<\/div>\n
\u00a0\u00a0Pohony p\u00e1s\u016f: 2<\/div>\n
\u00a0\u00a0Rozte\u010d \u0159et\u011bzov\u00e9ho kola: 800 mm (r = 0,4 m)<\/div>\n
\u00a0\u00a0Reak\u010dn\u00ed s\u00edla bubnu (v\u00e1penec, 400 mm): celkem 400 000 N<\/div>\n
\u00a0\u00a0Valiv\u00fd odpor (zhutn\u011bn\u00e1 lavice, 4%): na tra\u0165<\/div>\n
\u00a0\u00a0Stupe\u0148: 0% (rovn\u00e1 plo\u0161ina \u2013 povrchov\u00ed t\u011b\u017ea\u0159i nelezou)<\/div>\n
Krok 1 \u2014 Reakce bubn\u016f na skladbu:<\/div>\n
\u00a0\u00a0F_buben = 400 000 \/ 2 = 200 000 N na kolej<\/strong><\/div>\n
Krok 2 \u2013 Valiv\u00fd odpor na tra\u0165:<\/div>\n
\u00a0\u00a0F_roll = (200 000 x 9,81 x 0,04) \/ 2 = 39 240 N<\/strong><\/div>\n
Krok 3 \u2013 Celkov\u00fd trval\u00fd to\u010div\u00fd moment na stopu:<\/div>\n
\u00a0\u00a0T = (200 000 + 39 240) x 0,4 = 95 696 Nm trval\u00e9ho to\u010div\u00e9ho momentu<\/strong><\/div>\n
Krok 4 \u2013 Pou\u017eit\u00ed SF = 1,75 (trval\u00e9 \u0159ez\u00e1n\u00ed, prom\u011bnn\u00e1 tvrdost horniny):<\/div>\n
\u00a0\u00a0Po\u017eadovan\u00e1_t = 95 696 x 1,75 = Minim\u00e1ln\u00ed trval\u00fd to\u010div\u00fd moment 167 468 Nm<\/strong><\/div>\n
\u2192 Reakce bubnu je 84% celkov\u00e9 s\u00edly \u2013 dominuje n\u00e1stroj, nikoli hmotnost<\/div>\n
\u2192 P\u00e1sov\u00fd pohon Korea Ever-Power 180 000 Nm p\u0159i 150:1 \u2714<\/div>\n<\/div>\n<\/div>\n

S to\u010div\u00fdm momentem 180 000 Nm na p\u00e1s se pohon p\u00e1s\u016f povrchov\u00e9ho dolu bl\u00ed\u017e\u00ed to\u010div\u00e9mu momentu nejv\u011bt\u0161\u00edho Planetov\u00e1 p\u0159evodovka Korea Ever-Power<\/a> Katalogov\u00e9 modely. U nejv\u011bt\u0161\u00edch povrchov\u00fdch t\u011b\u017ea\u0159sk\u00fdch stroj\u016f (230+ tun, buben 1 200 kW) m\u016f\u017ee b\u00fdt vy\u017eadov\u00e1n dvojit\u00fd pohon p\u00e1s\u016f na ka\u017ed\u00e9 stran\u011b nebo zak\u00e1zkov\u00e1 konstrukce nad r\u00e1mec standardn\u00edho katalogu.<\/p>\n<\/section>\n

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Po\u017eit\u00ed prachu \u2013 nejabrazivn\u011bj\u0161\u00ed prost\u0159ed\u00ed, s jak\u00fdm se setk\u00e1te p\u0159i j\u00edzd\u011b na trati<\/h2>\n

Kamenn\u00fd prach z \u0159ezac\u00edho bubnu obaluje cel\u00fd stroj. Pohony p\u00e1s\u016f, namontovan\u00e9 na \u00farovni zem\u011b za \u0159ezac\u00edm bubnem, pracuj\u00ed v nep\u0159etr\u017eit\u00e9 vzduchov\u00e9 suspenzi \u010d\u00e1stic o velikosti 10 a\u017e 100 mikron\u016f \u2013 \u010d\u00e1stic dostate\u010dn\u011b mal\u00fdch, aby obe\u0161ly standardn\u00ed odvzdu\u0161\u0148ovac\u00ed otvory, a dostate\u010dn\u011b velk\u00fdch, aby obru\u0161ily zuby ozuben\u00fdch kol a lo\u017eiskov\u00e9 plochy, pokud se dostanou do olejov\u00e9 l\u00e1zn\u011b.<\/p>\n

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Koncentrace prachu na \u00farovni kolej\u00ed<\/div>\n

Koncentrace prachu ve vzduchu na povrchu sk\u0159\u00edn\u011b pohonu p\u00e1s\u016f b\u011bhem \u0159ez\u00e1n\u00ed: 500 a\u017e 5 000 mg\/m3 \u2013 50 a\u017e 500n\u00e1sobek limitu expozice pro vdechnuteln\u00fd prach na pracovi\u0161ti. Nejedn\u00e1 se o ob\u010dasnou expozici; je kontinu\u00e1ln\u00ed po celou hodinu \u0159ez\u00e1n\u00ed. Prach se skl\u00e1d\u00e1 z \u010derstv\u011b rozl\u00e1man\u00fdch horninov\u00fdch \u010d\u00e1stic s ostr\u00fdmi, hranami \u2013 mnohem abrazivn\u011bj\u0161\u00edch ne\u017e zv\u011btral\u00e9 p\u0159\u00edrodn\u00ed p\u016fdn\u00ed \u010d\u00e1stice stejn\u00e9 velikosti.<\/p>\n<\/div>\n

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M\u00edra kontaminace olejem bez ochrany<\/div>\n

Standardn\u00ed odvzdu\u0161\u0148ovac\u00ed ventil na p\u00e1sov\u00e9m pohonu v povrchov\u00e9m dole propou\u0161t\u00ed 50 a\u017e 200 mg horninov\u00e9ho prachu za hodinu do olejov\u00e9 l\u00e1zn\u011b b\u011b\u017en\u00fdm tepeln\u00fdm d\u00fdch\u00e1n\u00edm. B\u011bhem 500hodinov\u00e9ho intervalu v\u00fdm\u011bny oleje se nahromad\u011bn\u00e1 hmotnost prachu pohybuje mezi 25 a 100 gramy \u2013 co\u017e sta\u010d\u00ed ke zv\u00fd\u0161en\u00ed po\u010dtu \u010d\u00e1stic oleje nad normu ISO 22\/20\/17 a do rozsahu, kdy se \u017eivotnost lo\u017eiska zkracuje o 50 a\u017e 701 TP3T. Tlakov\u00e9, filtrovan\u00e9 odvzdu\u0161\u0148ovac\u00ed syst\u00e9my sni\u017euj\u00ed nas\u00e1v\u00e1n\u00ed prachu na m\u00e9n\u011b ne\u017e 5 mg za hodinu \u2013 \u010d\u00edm\u017e se \u010distota oleje prodlu\u017euje na p\u0159ijatelnou \u00farove\u0148 po celou dobu intervalu v\u00fdm\u011bny.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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

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T\u0159i poruchov\u00e9 re\u017eimy specifick\u00e9 pro pohony p\u00e1s\u016f povrchov\u00fdch dolu<\/h2>\n
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1<\/div>\n
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Zrychlen\u00e9 opot\u0159eben\u00ed ozuben\u00fdch kol a lo\u017eisek v d\u016fsledku kontaminace kamenn\u00fdm prachem<\/div>\n

Dominantn\u00ed zp\u016fsob selh\u00e1n\u00ed. Jemn\u00fd horninov\u00fd prach (10 a\u017e 100 mikron\u016f, hranat\u00fd, \u010derstv\u011b rozl\u00e1man\u00fd) vstupuje do olejov\u00e9 l\u00e1zn\u011b p\u0159es rozhran\u00ed odvzdu\u0161\u0148ova\u010de a t\u011bsn\u011bn\u00ed. Jakmile se tyto \u010d\u00e1stice suspenduj\u00ed v oleji, p\u016fsob\u00ed jako souvisl\u00e1 lapovac\u00ed pasta na ka\u017ed\u00e9m povrchu zubu ozuben\u00e9ho kola, ka\u017ed\u00e9 ob\u011b\u017en\u00e9 dr\u00e1ze lo\u017eiska a ka\u017ed\u00e9 t\u011bsnic\u00ed plo\u0161e. M\u00edra opot\u0159eben\u00ed p\u0159i provozu povrchov\u00e9ho dolu je 3 a\u017e 8kr\u00e1t vy\u0161\u0161\u00ed ne\u017e p\u0159i provozu rypadla na \u010dist\u00e9m staveni\u0161ti p\u0159i stejn\u00e9m to\u010div\u00e9m momentu \u2013 ne proto, \u017ee by se to\u010div\u00fd moment li\u0161il, ale proto, \u017ee olej je kontaminov\u00e1n od prvn\u00ed hodiny provozu.<\/p>\n

Prevence: Tlakov\u00fd filtrovan\u00fd odvzdu\u0161\u0148ova\u010d (povinn\u00fd). V\u00fdm\u011bna oleje po 500 hodin\u00e1ch provozu (ne po 1 000 a v\u00edce hodin\u00e1ch). Odb\u011br vzork\u016f oleje p\u0159i ka\u017ed\u00e9 v\u00fdm\u011bn\u011b \u2013 vym\u011b\u0148te pohon p\u00e1s\u016f, kdy\u017e koncentrace \u017eelezn\u00fdch \u010d\u00e1stic p\u0159ekro\u010d\u00ed 200 ppm a m\u00e1 vzestupn\u00fd trend.<\/div>\n<\/div>\n<\/div>\n
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2<\/div>\n
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Trval\u00e9 tepeln\u00e9 zat\u00ed\u017een\u00ed z t\u00e9m\u011b\u0159 nep\u0159etr\u017eit\u00e9ho provozu s vysok\u00fdm to\u010div\u00fdm momentem<\/div>\n

Povrchov\u00e9 doly pracuj\u00ed 18 a\u017e 22 hodin denn\u011b. S to\u010div\u00fdm momentem 167 000 Nm, kter\u00fd je udr\u017eov\u00e1n t\u0159\u00edstup\u0148ovou planetovou p\u0159evodovkou s \u00fa\u010dinnost\u00ed 94%, je nep\u0159etr\u017eit\u00fd tepeln\u00fd p\u0159\u00edkon zna\u010dn\u00fd \u2013 srovnateln\u00fd s buldozerem p\u0159i trval\u00e9m tla\u010den\u00ed, ale po 3 a\u017e 4kr\u00e1t del\u0161\u00ed dobu ne\u017e denn\u011b. Teplota oleje v pohonu p\u00e1s\u016f se b\u011bhem \u0159ez\u00e1n\u00ed stabilizuje na 80 a\u017e 100 stupn\u00edch Celsia \u2013 a z\u016fst\u00e1v\u00e1 na t\u00e9to hodnot\u011b po celou sm\u011bnu bez tepeln\u00e9 \u00falevy, kterou dost\u00e1vaj\u00ed skl\u00e1p\u011b\u010de p\u0159i n\u00e1vratu s pr\u00e1zdn\u00fdm motorem nebo bagry b\u011bhem prostoj\u016f p\u0159i kop\u00e1n\u00ed.<\/p>\n

Prevence: Pro povrchov\u00e9 t\u011b\u017eebn\u00ed stroje d\u016fln\u00ed t\u0159\u00eddy pou\u017eijte p\u00e1sov\u00e9 pohony s extern\u00edmi chladic\u00edmi otvory oleje. Pou\u017e\u00edvejte syntetick\u00fd p\u0159evodov\u00fd olej 75W-90. Neust\u00e1le sledujte teplotu oleje \u2013 maxim\u00e1ln\u00ed provozn\u00ed limit 100 \u00b0C.<\/div>\n<\/div>\n<\/div>\n
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3<\/div>\n
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Nestabilita rychlosti posuvu v d\u016fsledku r\u016fstu v\u016fle, co\u017e sni\u017euje kvalitu v\u00fdrobku<\/div>\n

S opot\u0159eben\u00edm zub\u016f ozuben\u00fdch kol v d\u016fsledku zne\u010di\u0161t\u011bn\u00ed prachem a trval\u00e9ho zat\u00ed\u017een\u00ed se zvy\u0161uje v\u016fle. Zvy\u0161uj\u00edc\u00ed se v\u016fle zp\u016fsobuje kol\u00eds\u00e1n\u00ed rychlosti posuvu b\u011bhem zm\u011bn tvrdosti horniny \u2013 stroj se prudce pohne dop\u0159edu, kdy\u017e vstoup\u00ed do m\u011bkk\u00e9 z\u00f3ny (p\u0159ijet\u00ed v\u016fle urychluje reakci) a v\u00e1h\u00e1, kdy\u017e vstoup\u00ed do tvrd\u00e9 z\u00f3ny (v\u016fle zpo\u017e\u010fuje p\u0159enos to\u010div\u00e9ho momentu). Tato kol\u00eds\u00e1n\u00ed, kter\u00e1 jsou pro obsluhu neviditeln\u00e1, vytv\u00e1\u0159ej\u00ed st\u0159\u00eddav\u00e9 p\u00e1sy nadm\u011brn\u011b velk\u00e9ho a podm\u011bre\u010dn\u00e9ho produktu v \u0159ezn\u00e9 plo\u0161e \u2013 viditeln\u00e9 na v\u00fdstupu z dopravn\u00edku, ale p\u0159ipisovateln\u00e9 pouze m\u011b\u0159en\u00ed v\u016fle pohonu p\u00e1su.<\/p>\n

Prevence: M\u011b\u0159en\u00ed v\u016fle pohonu p\u00e1s\u016f po ka\u017ed\u00fdch 1 000 hodin\u00e1ch provozu. Vym\u011b\u0148te, kdy\u017e v\u016fle p\u0159es\u00e1hne 1,5n\u00e1sobek dodan\u00e9 hodnoty. Sledov\u00e1n\u00ed trendu distribuce velikosti produktu jako nep\u0159\u00edm\u00e9ho ukazatele stavu pohonu.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
\"Testovac\u00ed<\/p>\n

Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro povrchov\u00e9 doly \u2013 \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
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Jak\u00fd je porovn\u00e1n\u00ed to\u010div\u00e9ho momentu pohonu p\u00e1s\u016f povrchov\u00e9ho dolu s buldozerem podobn\u00e9 hmotnosti?<\/h3>\n

Povrchov\u00fd dob\u00fdvac\u00ed stroj o hmotnosti 200 tun vy\u017eaduje p\u0159ibli\u017en\u011b 167 000 Nm na p\u00e1s \u2013 podobn\u011b jako t\u011b\u017eebn\u00ed buldozer t\u0159\u00eddy D10\/D11 s 150 000 a\u017e 255 000 Nm. Povrchov\u00fd dob\u00fdvac\u00ed stroj v\u0161ak generuje 841 TP3T tohoto to\u010div\u00e9ho momentu z reakce \u0159ezac\u00edho bubnu (kter\u00e9 buldozer ne\u010del\u00ed) a pouze 161 TP3T z valiv\u00e9ho odporu. Buldozer generuje 1001 TP3T sv\u00e9ho to\u010div\u00e9ho momentu z tla\u010den\u00ed radlice a valiv\u00e9ho odporu. Technick\u00fd d\u016fsledek: pohon p\u00e1s\u016f povrchov\u00e9ho dob\u00fdvac\u00edho stroje mus\u00ed absorbovat trval\u00e9 kol\u00eds\u00e1n\u00ed to\u010div\u00e9ho momentu zp\u016fsoben\u00e9 prom\u011bnnou tvrdost\u00ed horniny (\u00b120 a\u017e 301 TP3T od \u0159ezn\u00e9ho n\u00e1stroje), zat\u00edmco to\u010div\u00fd moment buldozeru je relativn\u011b stabiln\u00ed. Kol\u00edsav\u00e9 zat\u00ed\u017een\u00ed zp\u016fsobuje \u00fanavu kontaktu zub\u016f ozuben\u00e9ho kola rychleji ne\u017e st\u00e1l\u00e9 zat\u00ed\u017een\u00ed o stejn\u00e9 pr\u016fm\u011brn\u00e9 hodnot\u011b.<\/p>\n<\/div>\n

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Jak\u00e1 je typick\u00e1 \u017eivotnost pohonu p\u00e1s\u016f povrchov\u00e9ho dolu?<\/h3>\n

4 000 a\u017e 8 000 provozn\u00edch hodin \u2013 krat\u0161\u00ed doba ne\u017e u p\u00e1sov\u00fdch pohon\u016f bagr\u016f (8 000 a\u017e 12 000 hodin) navzdory podobn\u00fdm jmenovit\u00fdm to\u010div\u00fdm moment\u016fm. Sn\u00ed\u017een\u00ed \u017eivotnosti je zp\u016fsobeno t\u0159emi shlukuj\u00edc\u00edmi se faktory: (1) kontaminace horninov\u00fdm prachem urychluje opot\u0159eben\u00ed 3 a\u017e 8kr\u00e1t, (2) 18 a\u017e 22hodinov\u00fd denn\u00ed provozn\u00ed cyklus hromad\u00ed \u00fanavu materi\u00e1lu rychleji za kalend\u00e1\u0159n\u00ed den a (3) kol\u00eds\u00e1n\u00ed to\u010div\u00e9ho momentu v d\u016fsledku prom\u011bnn\u00e9 tvrdosti horniny zp\u016fsobuje kontaktn\u00ed \u00fanavu nad r\u00e1mec toho, co by zp\u016fsobilo ust\u00e1len\u00e9 zat\u00ed\u017een\u00ed. \u0158\u00edzen\u00ed oleje \u2013 p\u0159etlakov\u00e9 odvzdu\u0161\u0148ovac\u00ed ventily, v\u00fdm\u011bna oleje po 500 hodin\u00e1ch a monitorov\u00e1n\u00ed \u010d\u00e1stic oleje \u2013 je nejvlivn\u011bj\u0161\u00edm z\u00e1sahem pro prodlou\u017een\u00ed \u017eivotnosti p\u00e1sov\u00fdch pohon\u016f povrchov\u00fdch dob\u00fdvac\u00edch stroj\u016f.<\/p>\n<\/div>\n

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Pro\u010d je interval v\u00fdm\u011bny oleje u povrchov\u00fdch dob\u00fdva\u010d\u016f krat\u0161\u00ed ne\u017e u bagr\u016f?<\/h3>\n

Po\u017eit\u00ed horninov\u00e9ho prachu. I s p\u0159etlakov\u00fdmi odvzdu\u0161\u0148ova\u010di se v pohonu p\u00e1s\u016f povrchov\u00e9ho dolu hromad\u00ed 2 a\u017e 5 gram\u016f horninov\u00e9ho prachu za 500 hodin provozu \u2013 co\u017e sta\u010d\u00ed ke sn\u00ed\u017een\u00ed \u010distoty oleje pod minim\u00e1ln\u00ed po\u017eadavek v\u00fdrobce lo\u017eiska. Po 1 000 hodin\u00e1ch (standardn\u00ed interval rypadla) se hmotnost prachu zdvojn\u00e1sob\u00ed na 4 a\u017e 10 gram\u016f a zkr\u00e1cen\u00ed \u017eivotnosti lo\u017eiska v d\u016fsledku kontaminovan\u00e9ho oleje dos\u00e1hne 50 a\u017e 701 TP3T. Interval v\u00fdm\u011bny 500 hodin udr\u017euje olej v p\u0159ijateln\u00fdch mez\u00edch \u010distoty pro \u017eivotnost lo\u017eiska. V n\u011bkter\u00fdch provozech jsou pro obzvl\u00e1\u0161t\u011b pra\u0161n\u00e9 materi\u00e1ly (nap\u0159. k\u0159emi\u010dit\u00fd p\u00edsek, \u017eula) specifikov\u00e1ny intervaly 250 hodin.<\/p>\n<\/div>\n

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Jak ovliv\u0148uje hnac\u00ed p\u00e1s kvalitu t\u011b\u017een\u00e9ho produktu?<\/h3>\n

P\u0159\u00edmo. Rychlost \u0159ezac\u00edho bubnu je pevn\u00e1; velikost fragmentu produktu je \u00fam\u011brn\u00e1 rychlosti posuvu stroje. Tuto rychlost posuvu \u0159\u00edd\u00ed pohon p\u00e1s\u016f. Zm\u011bna rychlosti posuvu \u00b15% vede k zm\u011bn\u011b velikosti fragmentu \u00b15% \u2013 co\u017e m\u016f\u017ee produkt posunout mimo specifika\u010dn\u00ed okno. S opot\u0159eben\u00edm pohonu p\u00e1s\u016f a zv\u011bt\u0161en\u00edm v\u016fle se st\u00e1v\u00e1 reakce rychlosti posuvu na zm\u011bny tvrdosti horniny m\u00e9n\u011b p\u0159edv\u00eddatelnou \u2013 stroj v m\u011bkk\u00fdch z\u00f3n\u00e1ch kol\u00eds\u00e1 a v tvrd\u00fdch z\u00f3n\u00e1ch v\u00e1h\u00e1. To vytv\u00e1\u0159\u00ed st\u0159\u00eddav\u00e9 p\u00e1sy nadm\u011brn\u011b velk\u00e9ho a jemn\u00e9ho produktu, co\u017e sni\u017euje celkovou v\u00fdt\u011b\u017enost odpov\u00eddaj\u00edc\u00ed specifikaci o 5 a\u017e 15%.<\/p>\n<\/div>\n

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Dod\u00e1v\u00e1 Korea Ever-Power kolejov\u00e9 pohony s extern\u00edm chlazen\u00edm a p\u0159etlakov\u00fdmi odvzdu\u0161\u0148ova\u010di pro povrchov\u00e9 t\u011b\u017ea\u0159e?<\/h3>\n

Ano. Spole\u010dnost Korea Ever-Power vyr\u00e1b\u00ed planetov\u00e9 p\u0159evodovky s p\u00e1sov\u00fdm pohonem pro povrchovou t\u011b\u017ebu s extern\u00edmi otvory pro chlazen\u00ed oleje (p\u0159ipojuj\u00edc\u00edmi se k chladi\u010di hydraulick\u00e9ho oleje stroje), p\u0159etlakov\u00fdmi filtrovan\u00fdmi odvzdu\u0161\u0148ovac\u00edmi syst\u00e9my (tlak 0,2 baru, filtrace 10 mikron\u016f) a vysoce tvrd\u00fdmi kalen\u00fdmi ozuben\u00fdmi koly z oceli 20CrMnTi s povrchovou \u00fapravou dle DIN t\u0159\u00eddy 5 pro maxim\u00e1ln\u00ed odolnost proti kontaminaci prachem. K dispozici od 60 000 do 200 000 Nm pro st\u0159edn\u00ed a\u017e velk\u00e9 povrchov\u00e9 t\u011b\u017eebn\u00ed za\u0159\u00edzen\u00ed. Pro specifikaci odpov\u00eddaj\u00edc\u00ed skute\u010dn\u00e9 \u0159ezn\u00e9 s\u00edle a pra\u0161n\u00e9mu prost\u0159ed\u00ed uve\u010fte v\u00fdrobce stroje, v\u00fdkon \u0159ezn\u00e9ho bubnu a typ prim\u00e1rn\u00ed horniny.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Pohony p\u00e1s\u016f pro povrchov\u00e9 doly \u2013 prachot\u011bsn\u00e9, tepeln\u011b \u0159\u00edzen\u00e9, p\u0159esn\u00e9 pod\u00e1v\u00e1n\u00ed<\/div>\n

Spole\u010dnost Korea Ever-Power dod\u00e1v\u00e1 planetov\u00e9 p\u0159evodovky s p\u00e1sov\u00fdm pohonem pro povrchov\u00e9 doly od 60 000 do 200 000 Nm s p\u0159etlakov\u00fdmi odvzdu\u0161\u0148ova\u010di, extern\u00edm chlazen\u00edm a p\u0159esn\u00fdm posuvem na \u00farovni kvality v\u00fdrobku. Pro doporu\u010den\u00ed specifikace uve\u010fte model va\u0161eho povrchov\u00e9ho dolu a prim\u00e1rn\u00ed \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":"

Aplika\u010dn\u00ed in\u017een\u00fdrstv\u00ed Povrchov\u00e9 doly \u00b7 Kontinu\u00e1ln\u00ed t\u011b\u017eba Planetov\u00e1 p\u0159evodovka s p\u00e1sov\u00fdm pohonem pro povrchov\u00e9 doly \u2014 200 tun postupuj\u00edc\u00ed pevnou horninou, plynule \u017d\u00e1dn\u00e9 vrt\u00e1n\u00ed. \u017d\u00e1dn\u00e9 trhac\u00ed pr\u00e1ce. \u017d\u00e1dn\u00e9 sekund\u00e1rn\u00ed drcen\u00ed v porubu. Povrchov\u00fd doly nahrazuj\u00ed v\u0161echny t\u0159i operace jedin\u00fdm strojem, kter\u00fd jede vp\u0159ed a t\u011b\u017e\u00ed miner\u00e1l p\u0159\u00edmo z lo\u017eiska \u2014 [\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":[965],"tags":[],"class_list":["post-1063","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\/1063","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=1063"}],"version-history":[{"count":2,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1063\/revisions"}],"predecessor-version":[{"id":1067,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/1063\/revisions\/1067"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/media?parent=1063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/categories?post=1063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/tags?post=1063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}