{"id":1418,"date":"2026-06-29T03:43:40","date_gmt":"2026-06-29T03:43:40","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1418"},"modified":"2026-06-29T03:43:40","modified_gmt":"2026-06-29T03:43:40","slug":"worm-and-worm-wheel-for-mining-crusher-and-screening-equipment","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/cs\/worm-and-worm-wheel-for-mining-crusher-and-screening-equipment\/","title":{"rendered":"\u0160nek a \u0161nekov\u00e9 kolo pro t\u011b\u017eebn\u00ed drti\u010de a t\u0159\u00eddic\u00ed za\u0159\u00edzen\u00ed"},"content":{"rendered":"
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Korea Ever-Power \u00b7 Pr\u016fvodce aplika\u010dn\u00edm in\u017een\u00fdrstv\u00edm<\/p>\n

\u0160nek a \u0161nekov\u00e9 kolo pro t\u011b\u017eebn\u00ed drti\u010de a t\u0159\u00eddic\u00ed za\u0159\u00edzen\u00ed<\/h1>\n

\u010celistn\u00ed drti\u010d pro\u0159ez\u00e1vaj\u00edc\u00ed \u017eulov\u00e9 balvany o pr\u016fm\u011bru 400 mm generuje n\u00e1razov\u00e9 to\u010div\u00e9 momenty o velikosti 4 a\u017e 6kr\u00e1t vy\u0161\u0161\u00ed ne\u017e je pr\u016fm\u011br v ust\u00e1len\u00e9m stavu \u2013 \u0161pi\u010dkov\u00e9 zat\u00ed\u017een\u00ed, kter\u00e9 se dostav\u00ed a miz\u00ed b\u011bhem 50 milisekund. \u0160nekov\u00e9 kolo poh\u00e1n\u011bj\u00edc\u00ed podava\u010d drti\u010de se nach\u00e1z\u00ed 2 metry od objektu a tyto p\u0159en\u00e1\u0161en\u00e9 r\u00e1zy nep\u0159etr\u017eit\u011b absorbuje po dobu 6 000 hodin ro\u010dn\u011b v povrchov\u00e9m lomu 200 kilometr\u016f od nejbli\u017e\u0161\u00ed mechanick\u00e9 d\u00edlny. Tolerance n\u00e1raz\u016f, odolnost v\u016f\u010di vliv\u016fm prost\u0159ed\u00ed a provozuschopnost v ter\u00e9nu nejsou voliteln\u00e9 \u2013 jsou to po\u017eadavky na p\u0159e\u017eit\u00ed.<\/p>\n

Promluvte si s in\u017een\u00fdrem d\u016fln\u00edho pohonu \u2192<\/a><\/p>\n<\/div>\n

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Rychl\u00e1 odpov\u011b\u010f<\/div>\n

D\u016fln\u00ed drti\u010de, vibra\u010dn\u00ed s\u00edta, grizzly podava\u010de a bubnov\u00e9 pohony pou\u017e\u00edvaj\u00ed \u0161nekov\u00e9 p\u0159evody v pomocn\u00fdch a pomocn\u00fdch rol\u00edch pohonu, kde se sb\u00edh\u00e1 extr\u00e9mn\u00ed r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed, abrazivn\u00ed prach a provozuschopnost na vzd\u00e1len\u00fdch m\u00edstech. Tabulka klasifikace r\u00e1zov\u00e9ho zat\u00ed\u017een\u00ed mapuje tvrdost rudy (m\u011bkk\u00e1, st\u0159edn\u00ed, tvrd\u00e1, velmi tvrd\u00e1) v z\u00e1vislosti na typu drti\u010de (\u010delistn\u00ed, ku\u017eelov\u00fd, r\u00e1zov\u00fd, krou\u017eiv\u00fd) pro ur\u010den\u00ed spr\u00e1vn\u00e9ho provozn\u00edho faktoru r\u00e1zov\u00e9ho zat\u00ed\u017een\u00ed \u2013 od 2,0 pro ku\u017eelov\u00e9 drti\u010de m\u011bkk\u00e9 rudy do 4,0 pro r\u00e1zov\u00e9 drti\u010de tvrd\u00e9 rudy. Tyto faktory jsou 2 a\u017e 3kr\u00e1t vy\u0161\u0161\u00ed ne\u017e faktory p\u0159en\u00e1\u0161en\u00fdch r\u00e1z\u016f pou\u017e\u00edvan\u00e9 v cement\u00e1rn\u00e1ch (\u010dl\u00e1nek A25), proto\u017ee r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed v dolech jsou p\u0159\u00edm\u00e9 mechanick\u00e9 r\u00e1zy z kontaktu rudy s kovem, sp\u00ed\u0161e ne\u017e vibrace p\u0159en\u00e1\u0161en\u00e9 z\u00e1klady. Vzd\u00e1len\u00e9 doly vy\u017eaduj\u00ed prodlou\u017een\u00e9 servisn\u00ed intervaly (6 a\u017e 12 m\u011bs\u00edc\u016f mezi pl\u00e1novanou \u00fadr\u017ebou), konstrukce pouzder opraviteln\u00fdch v ter\u00e9nu (d\u011blen\u00e1 sk\u0159\u00ed\u0148, p\u0159\u00edstup k kol\u016fm se \u0161rouby) a programy anal\u00fdzy oleje, kter\u00e9 detekuj\u00ed probl\u00e9my mezi fyzick\u00fdmi kontrolami.<\/p>\n<\/div>\n

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Tam, kde se v t\u011b\u017eebn\u00edch provozech pou\u017e\u00edvaj\u00ed \u0161nekov\u00e9 p\u0159evody<\/h2>\n
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Hlavn\u00ed pohony drti\u010de a t\u0159\u00eddi\u010de vyu\u017e\u00edvaj\u00ed pro vysokorychlostn\u00ed a v\u00fdkonn\u00e9 prim\u00e1rn\u00ed redukci p\u0159\u00edmo sp\u0159a\u017een\u00e9 motory, \u0159emenov\u00e9 pohony nebo spir\u00e1lov\u00e9 p\u0159evodovky. Ka\u017ed\u00fd drtic\u00ed a t\u0159\u00eddic\u00ed okruh m\u00e1 v\u0161ak 8 a\u017e 20 pomocn\u00fdch pohon\u016f, kde jsou standardn\u00ed \u0161nekov\u00e9 p\u0159evody: pohony \u010deln\u00edho podava\u010de, kter\u00e9 d\u00e1vkuj\u00ed rudu do drti\u010de, pohony vibr\u00e1tor\u016f grizzly podava\u010de, pohony ot\u00e1\u010den\u00ed bubnov\u00e9ho s\u00edta, pohony \u010deln\u00ed \u010d\u00e1sti dopravn\u00edku, pohony \u010derpadel pro potla\u010den\u00ed prachu a mechanismy pro \u010di\u0161t\u011bn\u00ed dutiny drti\u010de.<\/p>\n

Tyto pomocn\u00e9 \u0161nekov\u00e9 p\u0159evodov\u00e9 pohony sd\u00edlej\u00ed t\u0159i spole\u010dn\u00e9 charakteristiky: st\u0159edn\u00ed to\u010div\u00fd moment (200 a\u017e 5 000 N\u00b7m), pomal\u00e9 a\u017e st\u0159edn\u00ed ot\u00e1\u010dky (1 a\u017e 30 ot.\/min) a extr\u00e9mn\u00ed vystaven\u00ed okoln\u00edmu prost\u0159ed\u00ed \u2013 prach z otev\u0159en\u00e9ho prostoru, vodn\u00ed st\u0159\u00edkaj\u00edc\u00ed voda, teplotn\u00ed extr\u00e9my a neust\u00e1l\u00e9 mechanick\u00e9 r\u00e1zy od sousedn\u00edho drtic\u00edho za\u0159\u00edzen\u00ed.<\/p>\n<\/div>\n

\"\u0160nekov\u00e9<\/div>\n<\/div>\n

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Klasifikace r\u00e1zov\u00e9ho zat\u00ed\u017een\u00ed \u2013 tvrdost rudy \u00d7 typ drti\u010de \u2192 provozn\u00ed faktor<\/h2>\n

R\u00e1zov\u00e9 zat\u00ed\u017een\u00ed v dolech se li\u0161\u00ed od p\u0159en\u00e1\u0161en\u00fdch vibrac\u00ed v cement\u00e1rn\u00e1ch (\u010dl\u00e1nek A25, SF 2.0 a\u017e 3.0), proto\u017ee r\u00e1zy v dolech vznikaj\u00ed p\u0159i p\u0159\u00edm\u00e9m kontaktu rudy s kovem uvnit\u0159 drti\u010de \u2013 a t\u00edm vznikaj\u00ed ostr\u00e9 p\u0159echodov\u00e9 jevy s vysokou amplitudou, nikoli nep\u0159etr\u017eit\u00e9 vibrace s n\u00edzkou amplitudou. Z\u00e1va\u017enost n\u00e1razu z\u00e1vis\u00ed na dvou prom\u011bnn\u00fdch: tvrdosti rudy (co\u017e ur\u010duje maxim\u00e1ln\u00ed s\u00edlu na n\u00e1raz) a typu drti\u010de, kter\u00fd ji zpracov\u00e1v\u00e1 (co\u017e ur\u010duje frekvenci a tvar vlny n\u00e1razu).<\/p>\n

\n\n\n\n\n\n\n\n\n
Tvrdost rudy<\/th>\n\u010celistn\u00ed drti\u010d<\/th>\nKu\u017eelov\u00fd drti\u010d<\/th>\nR\u00e1zov\u00fd drti\u010d<\/th>\nVibra\u010dn\u00ed s\u00edto<\/th>\nP\u0159\u00edklad rudy<\/th>\n<\/tr>\n<\/thead>\n
M\u011bkk\u00fd (Mohs 2-3)<\/td>\nSF 2.0<\/td>\nSF 2.0<\/td>\nSF 2,5<\/td>\nSF 1,5<\/td>\nUhl\u00ed, s\u00e1dra, mastek, s\u016fl<\/td>\n<\/tr>\n
St\u0159edn\u00ed (Mohs 4-5)<\/td>\nSF 2,5<\/td>\nSF 2,5<\/td>\nSF 3.0<\/td>\nSF 2.0<\/td>\nV\u00e1penec, mramor, bauxit<\/td>\n<\/tr>\n
Tvrd\u00fd (Mohs 6-7)<\/td>\nSF 3.0<\/td>\nSF 3.0<\/td>\nSF 3.5<\/td>\nSF 2,5<\/td>\n\u017dula, \u010dedi\u010d, \u017eelezn\u00e1 ruda, m\u011bd\u011bn\u00e1 ruda<\/td>\n<\/tr>\n
Velmi tvrd\u00e9 (Mohs 7+)<\/td>\nSF 3.5<\/td>\nSF 3.5<\/td>\nSF 4.0<\/td>\nSF 3.0<\/td>\nK\u0159emenec, takonit, korund<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Tabulka ukazuje, \u017ee n\u00e1razov\u00e9 drti\u010de vy\u017eaduj\u00ed nejvy\u0161\u0161\u00ed provozn\u00ed faktor na ka\u017ed\u00e9 \u00farovni tvrdosti rudy \u2013 proto\u017ee pou\u017e\u00edvaj\u00ed vysokorychlostn\u00ed n\u00e1raz rotoru (rychlost hrotu 60 a\u017e 80 m\/s) sp\u00ed\u0161e ne\u017e kompresi, co\u017e vytv\u00e1\u0159\u00ed nejost\u0159ej\u0161\u00ed r\u00e1zov\u00e9 p\u0159echodov\u00e9 jevy. Vibra\u010dn\u00ed s\u00edta maj\u00ed nejni\u017e\u0161\u00ed faktory, proto\u017ee pohyb s\u00edta je \u0159\u00edzen excentrick\u00fdmi z\u00e1va\u017e\u00edmi \u2013 energie n\u00e1razu se rozpt\u00fdl\u00ed v rudn\u00e9m lo\u017ei, sp\u00ed\u0161e ne\u017e aby se p\u0159en\u00e1\u0161ela do pohonu. \u0160nekov\u00fd p\u0159evod s jmenovit\u00fdm momentem 2 000 N\u00b7m pro ku\u017eelov\u00fd drti\u010d m\u011bkk\u00e9 rudy (SF 2.0, efektivn\u00ed jmenovit\u00fd moment 1 000 N\u00b7m) by musel b\u00fdt jmenovit\u00fd na 8 000 N\u00b7m pro n\u00e1razov\u00fd drti\u010d velmi tvrd\u00e9 rudy (SF 4.0, stejn\u00fd ust\u00e1len\u00fd stav 2 000 N\u00b7m) \u2013 co\u017e je \u010dty\u0159n\u00e1sobn\u00fd rozd\u00edl ve velikosti r\u00e1mu pro stejn\u00fd po\u017eadavek na jmenovit\u00fd to\u010div\u00fd moment.<\/p>\n


\n\"Materi\u00e1ly<\/p>\n

Mo\u017enost servisu na vzd\u00e1len\u00e9m m\u00edst\u011b \u2013 prodlou\u017een\u00e9 intervaly a proveden\u00ed opraviteln\u00e9 v ter\u00e9nu<\/h2>\n

\"D\u011blen\u00e1<\/p>\n

D\u016fln\u00ed lokality v Koreji, Vietnamu, Austr\u00e1lii a Africe jsou \u010dasto vzd\u00e1leny 100 a\u017e 500 kilometr\u016f od nejbli\u017e\u0161\u00ed mechanick\u00e9 d\u00edlny s mo\u017enost\u00ed opravy \u0161nekov\u00fdch p\u0159evod\u016f. P\u0159eprava vadn\u00e9 pohonn\u00e9 jednotky do d\u00edlny a zp\u011bt trv\u00e1 1 a\u017e 3 t\u00fddny \u2013 b\u011bhem nich\u017e je pohon \u0161nekov\u00fdch p\u0159evod\u016f a drtic\u00ed okruh bu\u010f vypnut, nebo b\u011b\u017e\u00ed na obtoku se sn\u00ed\u017eenou kapacitou. N\u00e1klady na jedin\u00fd t\u00fdden prostoje drti\u010de (ztracen\u00e9 p\u0159\u00edjmy z v\u00fdroby) obvykle p\u0159evy\u0161uj\u00ed n\u00e1klady na cel\u00fd pomocn\u00fd pohonn\u00fd syst\u00e9m faktorem 10 a\u017e 50.<\/p>\n

Konstruk\u010dn\u00ed prvky pro snadnou \u00fadr\u017ebu v ter\u00e9nu.<\/strong> \u0160nekov\u00e9 p\u0159evody pro d\u016fln\u00ed pou\u017eit\u00ed zahrnuj\u00ed d\u011blen\u00e9 sk\u0159\u00edn\u011b (sk\u0159\u00ed\u0148 se pro kontrolu a v\u00fdm\u011bnu kola rozd\u011bl\u00ed na dv\u011b poloviny bez nutnosti demont\u00e1\u017ee jednotky ze stroje), \u0161roubovan\u00e9 uchycen\u00ed kola (kolo lze od\u0161roubovat z v\u00fdstupn\u00edho h\u0159\u00eddele a vym\u011bnit v ter\u00e9nu pomoc\u00ed z\u00e1kladn\u00edho ru\u010dn\u00edho n\u00e1\u0159ad\u00ed), extern\u00ed vypou\u0161t\u011bc\u00ed a plnic\u00ed otvory oleje (p\u0159\u00edstupn\u00e9 bez demont\u00e1\u017ee) a nadm\u011brn\u011b velk\u00e9 magnetick\u00e9 vypou\u0161t\u011bc\u00ed z\u00e1tky (pro zachycen\u00ed kovov\u00fdch \u010d\u00e1stic opot\u0159eben\u00ed mezi anal\u00fdzami oleje). Tyto vlastnosti zvy\u0161uj\u00ed v\u00fdrobn\u00ed n\u00e1klady sk\u0159\u00edn\u011b o 15 a\u017e 25 procent, ale u\u0161et\u0159\u00ed 10 a\u017e 50kr\u00e1t v\u00edce z d\u016fvodu zamezen\u00ed prostoj\u016f, kdy\u017e je nutn\u00e1 oprava v ter\u00e9nu.<\/p>\n

Anal\u00fdza oleje jako d\u00e1lkov\u00e9 monitorov\u00e1n\u00ed.<\/strong> \u010ctvrtletn\u00ed odb\u011br vzork\u016f oleje a laboratorn\u00ed anal\u00fdza (obsah \u017eeleza, m\u011bdi, c\u00ednu pomoc\u00ed ICP spektrometrie) umo\u017e\u0148uje v\u010dasnou detekci zrychlen\u00e9ho opot\u0159eben\u00ed \u2013 co\u017e umo\u017e\u0148uje dolu napl\u00e1novat v\u00fdm\u011bnu kola b\u011bhem pl\u00e1novan\u00e9ho obdob\u00ed \u00fadr\u017eby, sp\u00ed\u0161e ne\u017e reagovat na nepl\u00e1novanou poruchu. N\u00e1klady na \u010dtvrtletn\u00ed anal\u00fdzu oleje se pohybuj\u00ed p\u0159ibli\u017en\u011b 80 a\u017e 120 USD ro\u010dn\u011b na jeden pohon \u2013 zanedbateln\u00e9 ve srovn\u00e1n\u00ed s denn\u00ed produkc\u00ed drtic\u00edho okruhu 50 000 a\u017e 200 000 USD.<\/p>\n

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Pozn\u00e1mka k in\u017een\u00fdrsk\u00e9mu stolu<\/div>\n

Korejsk\u00fd lom na kamenivo, kter\u00fd provozoval okruh \u010delistn\u00edho drti\u010de s v\u00fdkonem 500 tun za hodinu, specifikoval p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f pro 4 pohony \u010deln\u00edho podava\u010de. Ruda byla st\u0159edn\u011b tvrd\u00fd v\u00e1penec (Mohs 4). P\u016fvodn\u00ed specifikace pou\u017e\u00edvala SF 1,5 \u2013 standard pro \u201est\u0159edn\u00ed r\u00e1zy\u201c v katalogu. P\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f byly dimenzov\u00e1ny na 3 000 N\u00b7m (2 000 N\u00b7m v ust\u00e1len\u00e9m stavu \u00d7 1,5). Po 14 m\u011bs\u00edc\u00edch provozu jeden ze \u010dty\u0159 p\u00e1r\u016f selhal \u2013 bronzov\u00fd zub kola se zlomil u ko\u0159ene v d\u016fsledku \u00fanavy n\u00e1razem. Lom musel podava\u010d na 3 dny zastavit, dokud nebyl ze Soulu (180 km) dod\u00e1n n\u00e1hradn\u00ed. Ztr\u00e1ta produkce v d\u016fsledku selh\u00e1n\u00ed \u0161nekov\u00e9ho p\u0159evodu: p\u0159ibli\u017en\u011b 36 000 tun \u00d7 mar\u017ee 8 USD na tunu = 288 000 USD u\u0161l\u00fdch p\u0159\u00edjm\u016f b\u011bhem t\u0159\u00eddenn\u00ed odst\u00e1vky. Hlavn\u00ed p\u0159\u00ed\u010dina: SF 1.5 byl vhodn\u00fd pro b\u011b\u017en\u00e9 pr\u016fmyslov\u00e9 vibrace, ale nedostate\u010dn\u00fd pro prost\u0159ed\u00ed s n\u00e1razy \u010delistn\u00edho drti\u010de \u2013 spr\u00e1vn\u00fd faktor z tabulky klasifikace n\u00e1raz\u016f byl SF 2.5 pro st\u0159edn\u011b tvrdou rudu s \u010delistn\u00edm drti\u010dem. P\u0159epracov\u00e1n\u00ed specifikace na SF 2.5: p\u00e1ry s jmenovit\u00fdm momentem 5 000 N\u00b7m (2 000 \u00d7 2,5). Velikost r\u00e1mu zv\u011bt\u0161ena ze 125 mm na 160 mm mezi st\u0159edy. N\u00e1klady na n\u00e1hradn\u00ed p\u00e1r: 1 650 USD (oproti 980 USD u poddimenzovan\u00e9ho p\u00e1ru \u2013 n\u00e1r\u016fst o 670 USD). T\u0159\u00edlet\u00e9 sledov\u00e1n\u00ed p\u0159epracovan\u00fdch p\u00e1r\u016f: \u017e\u00e1dn\u00e9 poruchy, \u017e\u00e1dn\u00e9 nepl\u00e1novan\u00e9 prostoje. N\u00e1klady na modernizaci ve v\u00fd\u0161i 670 USD na p\u00e1r zabr\u00e1nily denn\u00edm ztr\u00e1t\u00e1m ve v\u00fdrob\u011b ve v\u00fd\u0161i 288 000 USD \u2013 pom\u011br n\u00e1vratnosti 430:1.<\/p>\n<\/div>\n

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T\u0159i p\u0159\u00edpady specifikace p\u00e1ru \u0161nekov\u00fdch p\u0159evod\u016f t\u011b\u017eebn\u00edho za\u0159\u00edzen\u00ed<\/h2>\n

\"Vysoce<\/p>\n

P\u0159\u00edpad 1 \u2013 Korejsk\u00fd lom na kamenivo: \u010delistn\u00ed drti\u010d s podava\u010dem, v\u00e1penec, SF 2.5<\/h3>\n

Korejsk\u00fd lom na kamenivo specifikoval \u0161nekov\u00e9 p\u0159evody pro 4 \u0161nekov\u00e9 pohony podava\u010de s \u010deln\u00edm pohonem, kter\u00e9 nap\u00e1jej\u00ed \u010delistn\u00ed drti\u010d o rozm\u011brech 900 \u00d7 600 mm s v\u00fdkonem 500 tun za hodinu. Ruda: v\u00e1penec, Mohsova stupnice 4 (st\u0159edn\u00ed). Rychlost podava\u010de: 5 ot.\/min. Ust\u00e1len\u00fd to\u010div\u00fd moment: 2 000 N\u00b7m. R\u00e1zov\u00fd \u00fahel SF z klasifika\u010dn\u00ed tabulky: 2,5 (st\u0159edn\u00ed ruda \u00d7 \u010delistn\u00ed drti\u010d). Po\u017eadovan\u00fd jmenovit\u00fd v\u00fdkon: 5 000 N\u00b7m. \u0160nekov\u00fd p\u0159evod (p\u0159especifikovan\u00fd po po\u010d\u00e1te\u010dn\u00edm poddimenzov\u00e1n\u00ed): jednochod\u00fd, modul 6, rozte\u010d st\u0159ed\u016f 160 mm, p\u0159evod 40:1. Materi\u00e1l: kalen\u00fd \u0161nek z legovan\u00e9 oceli, kolo z odst\u0159ediv\u011b lit\u00e9 fosforov\u00e9 bronzy. T\u011bleso: d\u011blen\u00e1 litina s magnetickou vypou\u0161t\u011bc\u00ed z\u00e1tkou. T\u011bsn\u011bn\u00ed: labyrintov\u00e9 s tukovou vyrovn\u00e1vac\u00ed z\u00f3nou (v m\u00edst\u011b podava\u010de nen\u00ed k dispozici proplachov\u00e1n\u00ed vzduchem \u2013 nen\u00ed k dispozici p\u0159\u00edvod stla\u010den\u00e9ho vzduchu). Olej: miner\u00e1ln\u00ed EP ISO VG 460, m\u011bn\u011bn ka\u017ed\u00fdch 6 m\u011bs\u00edc\u016f se \u010dtvrtletn\u00ed anal\u00fdzou oleje (ICP spektrometrie pro m\u011b\u010f, \u017eelezo, c\u00edn). Cena za p\u00e1r: 1 650 USD. \u010ctvrtletn\u00ed anal\u00fdza oleje: 30 USD za vzorek. T\u0159\u00edlet\u00fd servis: \u017e\u00e1dn\u00e9 poruchy, stabiln\u00ed trend m\u011bdi na 12 ppm (v\u00fdrazn\u011b pod ak\u010dn\u00edm limitem 80 ppm).<\/p>\n

P\u0159\u00edpad 2 \u2013 Japonsk\u00fd podzemn\u00ed m\u011bd\u011bn\u00fd d\u016fl: pohon s\u00edta bubnu, mokr\u00e1 ruda, IP67<\/h3>\n

Japonsk\u00fd podzemn\u00ed m\u011bd\u011bn\u00fd d\u016fl specifikoval \u0161nekov\u00fd p\u0159evod pro pohon ot\u00e1\u010den\u00ed bubnov\u00e9ho s\u00edta v prim\u00e1rn\u00edm t\u0159\u00eddic\u00edm okruhu. Bubnov\u00fd p\u0159evod odd\u011bloval drcenou rudu (m\u00ednus 150 mm) od jemn\u00fdch \u010d\u00e1stic p\u0159i 8 ot.\/min. Prost\u0159ed\u00ed podzemn\u00edho dolu: relativn\u00ed vlhkost 95 procent, odkap\u00e1v\u00e1n\u00ed podzemn\u00ed vody, celoro\u010dn\u00ed teplota 28 a\u017e 35 stup\u0148\u016f Celsia. Vlhk\u00e9 prost\u0159ed\u00ed bylo agresivn\u011bj\u0161\u00ed ne\u017e pra\u0161n\u00e9 prost\u0159ed\u00ed v povrchov\u00fdch lomech \u2013 voda nesla rozpu\u0161t\u011bn\u00fd s\u00edran m\u011b\u010fnat\u00fd (kysel\u00fd, pH 3 a\u017e 4), kter\u00fd rychle korodoval standardn\u00ed ocel. \u0160nekov\u00fd p\u0159evod: jednochod\u00fd, modul 5, rozte\u010d 125 mm, p\u0159evodov\u00fd pom\u011br 30:1. Ust\u00e1len\u00fd to\u010div\u00fd moment: 1 800 N\u00b7m. R\u00e1zov\u00e1 pevnost: 2,0 (ekvivalent st\u0159edn\u00ed rudy, vibra\u010dn\u00ed s\u00edto). Po\u017eadovan\u00fd jmenovit\u00fd v\u00fdkon: 3 600 N\u00b7m. Materi\u00e1l: \u0160nek z nerezov\u00e9 oceli 316L (odolnost v\u016f\u010di kysel\u00e9 d\u016fln\u00ed vod\u011b), kolo z hlin\u00edkov\u00e9ho bronzu. T\u011bsn\u011bn\u00ed: IP67 s PTFE b\u0159item a labyrintem. Olej: syntetick\u00fd PAG s antikorozn\u00ed p\u0159\u00edsadou pro kysel\u00e9 prost\u0159ed\u00ed. Cena za p\u00e1r: 2 400 USD. Proch\u00e1zet \u0161nekov\u00fd reduktor pro t\u011b\u017ebu<\/a> mo\u017enosti pro podzemn\u00ed i povrchovou t\u011b\u017ebu.<\/p>\n

P\u0159\u00edpad 3 \u2013 Vietnamsk\u00fd provoz t\u011b\u017eby lateritov\u00e9ho niklu: vibra\u010dn\u00ed s\u00edto, m\u011bkk\u00e1 ruda, optimalizace n\u00e1klad\u016f<\/h3>\n

Vietnamsk\u00fd lateritov\u00fd niklov\u00fd d\u016fl specifikoval p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f pro 6 pohon\u016f vibra\u010dn\u00edch s\u00edt v okruhu prop\u00edr\u00e1n\u00ed rudy. Lateritov\u00e1 ruda je m\u011bkk\u00e1 (Mohs 2 a\u017e 3, v podstat\u011b j\u00edl a rozlo\u017een\u00e1 hornina) a zpracov\u00e1v\u00e1 se za mokra \u2013 ruda se p\u0159ed t\u0159\u00edd\u011bn\u00edm suspenduje ve vod\u011b. R\u00e1zov\u00e9 zat\u00ed\u017een\u00ed bylo minim\u00e1ln\u00ed, proto\u017ee laterit nevytv\u00e1\u0159\u00ed \u017e\u00e1dn\u00e9 ostr\u00e9 n\u00e1razy horniny na kov. R\u00e1zov\u00fd faktor vibra\u010dn\u00edho s\u00edta SF: 1,5 (m\u011bkk\u00e1 ruda, vibra\u010dn\u00ed s\u00edto \u2013 nejni\u017e\u0161\u00ed faktor v klasifika\u010dn\u00ed tabulce). Ust\u00e1len\u00fd to\u010div\u00fd moment: 800 N\u00b7m. Po\u017eadovan\u00fd v\u00fdkon: 1 200 N\u00b7m. P\u00e1r \u0161nekov\u00fdch p\u0159evod\u016f: jednochod\u00fd, modul 4, rozte\u010d 100 mm, p\u0159evodov\u00fd pom\u011br 25:1. Materi\u00e1l: \u017e\u00e1rov\u011b pozinkovan\u00fd \u0161nek (vhodn\u00fd pro mokrou, ale nekyselou suspenzi lateritov\u00e9ho j\u00edlu), kolo z fosforov\u00e9ho bronzu. T\u011bsn\u011bn\u00ed: IP55 s ochranou proti st\u0159\u00edkaj\u00edc\u00ed vod\u011b (pohon s\u00edta byl nad hladinou suspenze, p\u0159ij\u00edmal st\u0159\u00edkaj\u00edc\u00ed vodu, ale ne pono\u0159en\u00ed). Olej: standardn\u00ed miner\u00e1ln\u00ed EP ISO VG 320, m\u011bn\u011bn\u00fd ka\u017edoro\u010dn\u011b. Cena za p\u00e1r: 380 USD. Cena za 6 jednotek: 2 280 USD. Specifikace ukazuje, \u017ee ne v\u0161echny t\u011b\u017eebn\u00ed aplikace vy\u017eaduj\u00ed extr\u00e9mn\u00ed provozn\u00ed faktory a korozivzdorn\u00e9 materi\u00e1ly pou\u017e\u00edvan\u00e9 v horninov\u00fdch operac\u00edch \u2013 zpracov\u00e1n\u00ed lateritu je mechanicky \u0161etrn\u00e9 a chemicky m\u00edrn\u00e9 ve srovn\u00e1n\u00ed s drcen\u00edm hornin a specifikace \u0161nekov\u00e9ho p\u0159evodu by m\u011bla odpov\u00eddat skute\u010dn\u00e9 z\u00e1va\u017enosti, sp\u00ed\u0161e ne\u017e se \u0159\u00eddit nejhor\u0161\u00edm mo\u017en\u00fdm p\u0159edpokladem t\u011b\u017eby.<\/p>\n

<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\nOt\u00e1zka: Jak ur\u010d\u00edm spr\u00e1vn\u00fd servisn\u00ed faktor n\u00e1razu pro m\u016fj konkr\u00e9tn\u00ed d\u016fl?<\/summary>\n

Za\u010dn\u011bte s tabulkou klasifikace n\u00e1raz\u016f s pou\u017eit\u00edm tvrdosti rudy (z dat geologick\u00e9ho pr\u016fzkumu nebo Mohsovy vrypov\u00e9 zkou\u0161ky) a typu drti\u010de. Pot\u00e9 upravte podle instala\u010dn\u00ed vzd\u00e1lenosti: pokud je \u0161nekov\u00fd p\u0159evod namontov\u00e1n p\u0159\u00edmo na r\u00e1mu drti\u010de (pohon podava\u010de je k drti\u010di p\u0159i\u0161roubov\u00e1n), pou\u017eijte faktor stolu. Pokud je drti\u010d namontov\u00e1n na samostatn\u00e9m z\u00e1kladu 2 a\u017e 5 metr\u016f od drti\u010de, sni\u017ete jej o 0,5 (p\u0159en\u00e1\u0161en\u00fd r\u00e1z se s rostouc\u00ed vzd\u00e1lenost\u00ed tlum\u00ed). Pokud je drti\u010d namontov\u00e1n na spole\u010dn\u00e9m z\u00e1kladu s kulov\u00fdm ml\u00fdnem (jako v cement\u00e1rn\u00e1ch, \u010dl\u00e1nek A25), pou\u017eijte m\u00edsto toho faktor bl\u00edzkosti kulov\u00e9ho ml\u00fdna. V p\u0159\u00edpad\u011b pochybnost\u00ed pou\u017eijte vy\u0161\u0161\u00ed faktor \u2013 n\u00e1klady na jedno zv\u011bt\u0161en\u00ed r\u00e1mu (15 a\u017e 25 procent) jsou zanedbateln\u00e9 ve srovn\u00e1n\u00ed s n\u00e1klady na jedno nepl\u00e1novan\u00e9 selh\u00e1n\u00ed ve vzd\u00e1len\u00e9m dole.<\/p>\n<\/details>\n

\nOt\u00e1zka: Co d\u011bl\u00e1 sk\u0159\u00ed\u0148 \u0161nekov\u00e9ho p\u0159evodu \u201eopravitelnou v ter\u00e9nu\u201c?<\/summary>\n

\u010cty\u0159i konstruk\u010dn\u00ed prvky: (1) D\u011blen\u00e1 sk\u0159\u00ed\u0148 \u2013 horn\u00ed polovina se od\u0161roubuje, aby se odhalilo kolo, ani\u017e by bylo nutn\u00e9 demontovat celou jednotku z r\u00e1mu stroje; (2) \u0160roubovan\u00e9 kolo \u2013 kolo je p\u0159ipevn\u011bno \u0161rouby k p\u0159\u00edrub\u011b v\u00fdstupn\u00edho h\u0159\u00eddele, nikoli nalisov\u00e1no, co\u017e umo\u017e\u0148uje demont\u00e1\u017e pomoc\u00ed standardn\u00edch kl\u00ed\u010d\u016f; (3) P\u0159\u00edstupn\u00e9 olejov\u00e9 otvory \u2013 vypou\u0161t\u011bc\u00ed a plnic\u00ed otvory jsou dosa\u017eiteln\u00e9 bez demont\u00e1\u017ee ochrann\u00fdch kryt\u016f nebo sousedn\u00edho za\u0159\u00edzen\u00ed; (4) Standardn\u00ed upev\u0148ovac\u00ed prvky \u2013 v\u0161echny \u0161rouby sk\u0159\u00edn\u011b jsou metrick\u00e9 \u0161estihrann\u00e9 (bez speci\u00e1ln\u00edho n\u00e1\u0159ad\u00ed). D\u00edky t\u011bmto vlastnostem m\u016f\u017ee vy\u0161kolen\u00fd d\u016fln\u00ed mechanik vym\u011bnit opot\u0159ebovan\u00e9 \u0161nekov\u00e9 kolo za 4 a\u017e 6 hodin pomoc\u00ed ru\u010dn\u00edho n\u00e1\u0159ad\u00ed dostupn\u00e9ho v jak\u00e9koli d\u016fln\u00ed d\u00edln\u011b \u2013 oproti 1 a\u017e 3 t\u00fddn\u016fm pot\u0159ebn\u00fdm k p\u0159eprav\u011b jednotky do extern\u00edho za\u0159\u00edzen\u00ed.<\/p>\n<\/details>\n

\nOt\u00e1zka: Jak se li\u0161\u00ed d\u016fln\u00ed prach od cementov\u00e9ho prachu ve sv\u00e9m vlivu na p\u00e1ry \u0161nekov\u00fdch kol?<\/summary>\n

T\u011b\u017eebn\u00ed prach se li\u0161\u00ed podle typu rudy: horninov\u00fd prach bohat\u00fd na oxid k\u0159emi\u010dit\u00fd (\u017eula, k\u0159emenec) je extr\u00e9mn\u011b abrazivn\u00ed, ale chemicky neutr\u00e1ln\u00ed (pH 6 a\u017e 7). Prach z cement\u00e1rensk\u00fdch pec\u00ed (\u010dl\u00e1nek A25) je st\u0159edn\u011b abrazivn\u00ed, ale siln\u011b alkalick\u00fd (pH 12). Mechanick\u00fd abrazivn\u00ed \u00fa\u010dinek je podobn\u00fd \u2013 oba typy p\u016fsob\u00ed jako lapovac\u00ed pasta, pokud vniknou do pouzdra. Chemick\u00fd \u00fa\u010dinek se li\u0161\u00ed: cementov\u00fd prach napad\u00e1 gumov\u00e1 t\u011bsn\u011bn\u00ed alkalickou degradac\u00ed, zat\u00edmco k\u0159emi\u010dit\u00fd prach nikoli. Nicm\u00e9n\u011b n\u011bkter\u00e9 t\u011b\u017eebn\u00ed prachy (rudy sulfidu m\u011bdi, sulfidu \u017eeleza) generuj\u00ed kyselou st\u00e9kaj\u00edc\u00ed vodu, kter\u00e1 napad\u00e1 ocel a bronz \u2013 vy\u017eaduje stejn\u00e9 vylep\u0161en\u00ed materi\u00e1lu (nerezov\u00e1 ocel 316L, hlin\u00edkov\u00fd bronz) jako alkalick\u00e9 prost\u0159ed\u00ed cementu, ale z opa\u010dn\u00fdch chemick\u00fdch d\u016fvod\u016f.<\/p>\n<\/details>\n

\nOt\u00e1zka: M\u011bly by b\u00fdt v dole skladov\u00e1ny n\u00e1hradn\u00ed p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f?<\/summary>\n

Pro doly vzd\u00e1len\u00e9 v\u00edce ne\u017e 100 km od dodavatele: ano \u2013 m\u011bjte na sklad\u011b alespo\u0148 jedno n\u00e1hradn\u00ed kolo na ka\u017edou kritickou velikost pohonu a jeden kompletn\u00ed n\u00e1hradn\u00ed p\u00e1r pro pohon s nejvy\u0161\u0161\u00ed kritickou hodnotou (obvykle prim\u00e1rn\u00ed podava\u010d drti\u010de). N\u00e1klady na p\u0159epravu jednoho n\u00e1hradn\u00edho p\u00e1ru \u0161nekov\u00fdch kol (hodnota z\u00e1sob 1 000 a\u017e 3 000 USD) jsou men\u0161\u00ed ne\u017e 1 procento ztr\u00e1ty tr\u017eeb z v\u00fdroby b\u011bhem jedin\u00e9ho dne odst\u00e1vky drti\u010de (50 000 a\u017e 200 000 USD). U konstrukc\u00ed s d\u011blenou sk\u0159\u00edn\u00ed opraviteln\u00fdch v ter\u00e9nu je dostate\u010dn\u00e9 m\u00edt na sklad\u011b pouze bronzov\u00e9 kolo (nikoli cel\u00fd p\u00e1r), proto\u017ee ocelov\u00fd \u0161nek selh\u00e1v\u00e1 jen z\u0159\u00eddka \u2013 co\u017e sni\u017euje n\u00e1klady na n\u00e1hradn\u00ed d\u00edly o 60 a\u017e 70 procent.<\/p>\n<\/details>\n

\nOt\u00e1zka: Jak\u00e1 je typick\u00e1 \u017eivotnost \u0161nekov\u00e9ho soukol\u00ed v t\u011b\u017eebn\u00edm pr\u016fmyslu?<\/summary>\n

P\u0159i spr\u00e1vn\u00e9m provozn\u00edm faktoru r\u00e1zu a ochran\u011b proti prachu: 4 a\u017e 8 let p\u0159i 4 000 a\u017e 6 000 hodin\u00e1ch ro\u010dn\u011b pro okruhy drcen\u00ed tvrd\u00fdch rud, 6 a\u017e 12 let pro aplikace s m\u011bkk\u00fdmi rudami a t\u0159\u00edd\u011bn\u00edm. Ocelov\u00fd \u0161nek vydr\u017e\u00ed 8 a\u017e 15+ let. Faktorem omezuj\u00edc\u00edm \u017eivotnost je t\u00e9m\u011b\u0159 v\u017edy bronzov\u00e9 kolo \u2013 \u00fanava materi\u00e1lu v d\u016fsledku r\u00e1zu v oblasti ko\u0159ene zubu vytv\u00e1\u0159\u00ed mikrotrhliny, kter\u00e9 se po miliony cykl\u016f zat\u00ed\u017een\u00ed zv\u011bt\u0161uj\u00ed, dokud se zub nezlom\u00ed. Anal\u00fdza oleje sleduj\u00edc\u00ed trend obsahu m\u011bdi poskytuje 6 a\u017e 12 m\u011bs\u00edc\u016f p\u0159edstihu p\u0159ed selh\u00e1n\u00edm kola \u2013 co\u017e umo\u017e\u0148uje pl\u00e1novanou v\u00fdm\u011bnu b\u011bhem pl\u00e1novan\u00e9ho \u00fadr\u017ebov\u00e9ho okna nam\u00edsto nepl\u00e1novan\u00e9 nouzov\u00e9 opravy.<\/p>\n<\/details>\n<\/div>\n

<\/p>\n

\u0160nekov\u00e9 p\u0159evody drti\u010d\u016f a t\u0159\u00eddi\u010d\u016f pracuj\u00ed s nejn\u00e1ro\u010dn\u011bj\u0161\u00edm r\u00e1zov\u00fdm zat\u00ed\u017een\u00edm ze v\u0161ech aplikac\u00ed v t\u00e9to \u0159ad\u011b \u2013 provozn\u00ed faktory 2,0 a\u017e 4,0, kter\u00e9 jsou 2 a\u017e 3kr\u00e1t vy\u0161\u0161\u00ed ne\u017e standardn\u00ed pr\u016fmyslov\u00e9 faktory. Tabulka klasifikace r\u00e1zov\u00e9ho zat\u00ed\u017een\u00ed mapuje tvrdost rudy v z\u00e1vislosti na typu drti\u010de, aby ur\u010dila spr\u00e1vn\u00fd faktor \u2013 \u010d\u00edm\u017e se zabr\u00e1n\u00ed chyb\u00e1m p\u0159i poddimenzov\u00e1n\u00ed, kter\u00e9 zp\u016fsobuj\u00ed katastrof\u00e1ln\u00ed lom zub\u016f v ter\u00e9nu a v\u00fdrobn\u00ed ztr\u00e1ty, kter\u00e9 100 a\u017e 400kr\u00e1t p\u0159ekra\u010duj\u00ed n\u00e1klady na pohon. Odlehl\u00e9 doly vy\u017eaduj\u00ed konstrukce sk\u0159\u00edn\u00ed opraviteln\u00fdch v ter\u00e9nu (d\u011blen\u00e1 sk\u0159\u00ed\u0148, \u0161roubovan\u00e9 kolo) a programy monitorov\u00e1n\u00ed anal\u00fdzy oleje, kter\u00e9 detekuj\u00ed vznikaj\u00edc\u00ed poruchy mezi fyzick\u00fdmi kontrolami. Specifikace mus\u00ed odpov\u00eddat skute\u010dn\u00e9 kombinaci rudy a drti\u010de \u2013 v\u00fdchoz\u00ed nastaven\u00ed generick\u00e9ho faktoru \u201et\u011b\u017eebn\u00edho zat\u00ed\u017een\u00ed\u201c \u0161nekov\u00e9ho p\u0159evodu bu\u010f pl\u00fdtv\u00e1 rozpo\u010dtem (nadhodnoceno pro m\u011bkkou rudu), nebo vede k poruch\u00e1m (podhodnoceno pro n\u00e1razov\u00e9 drti\u010de tvrd\u00e9 rudy).<\/p>\n

Pro v\u00fdrobce d\u016fln\u00edch za\u0159\u00edzen\u00ed a t\u00fdmy \u00fadr\u017eby dol\u016f na\u0161e technick\u00e9 odd\u011blen\u00ed klasifikuje z\u00e1va\u017enost n\u00e1razu a doporu\u010duje spr\u00e1vnou velikost r\u00e1mu, materi\u00e1l a konfiguraci pro ter\u00e9nn\u00ed servis. Standardn\u00ed katalog \u0161nekov\u00e9 p\u0159evodovky pro vysok\u00e9 zat\u00ed\u017een\u00ed<\/a> Pokr\u00fdv\u00e1 velikosti pro t\u011b\u017eebn\u00ed \u00fa\u010dely od 100 do 250 mm s rozte\u010d\u00ed st\u0159ed\u016f s d\u011blen\u00fdm pouzdrem a mo\u017enostmi opravy v ter\u00e9nu. Ode\u0161lete specifikace t\u011b\u017eebn\u00edho disku<\/a> s typem rudy, typem drti\u010de, instala\u010dn\u00ed vzd\u00e1lenost\u00ed od drti\u010de a t\u00edm, zda je vy\u017eadov\u00e1na mo\u017enost opravy v ter\u00e9nu.<\/p>\n

<\/p>\n

\n

Specifikujete p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f pro t\u011b\u017eebn\u00ed nebo lomov\u00e9 za\u0159\u00edzen\u00ed?<\/h3>\n

Za\u0161lete n\u00e1m typ a tvrdost rudy, typ drti\u010de\/t\u0159\u00eddi\u010de, bl\u00edzkost instalace k drti\u010di, um\u00edst\u011bn\u00ed dolu (pro pl\u00e1nov\u00e1n\u00ed servisu) a zda je nutn\u00e1 mo\u017enost opravy v ter\u00e9nu s d\u011blen\u00fdm krytem. Klasifikujeme z\u00e1va\u017enost dopadu a doporu\u010d\u00edme velikost r\u00e1mu, materi\u00e1l a pl\u00e1n \u00fadr\u017eby.<\/p>\n

Vy\u017e\u00e1dejte si specifikaci t\u011b\u017eebn\u00edho disku \u2192<\/a><\/p>\n<\/div>\n

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

Korea Ever-Power \u00b7 Application Engineering Guide Worm and Worm Wheel for Mining Crusher and Screening Equipment A jaw crusher biting through 400 mm granite boulders generates impact torque spikes of 4 to 6 times the steady-state mean \u2014 peak loads that arrive and vanish within 50 milliseconds. The worm gear pair driving the crusher feeder […]<\/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":[2821],"tags":[],"class_list":["post-1418","post","type-post","status-publish","format-standard","hentry","category-worm-and-worm-wheel"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/comments?post=1418"}],"version-history":[{"count":2,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1418\/revisions"}],"predecessor-version":[{"id":1421,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1418\/revisions\/1421"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/media?parent=1418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/categories?post=1418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/tags?post=1418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}