{"id":1255,"date":"2026-04-27T06:19:32","date_gmt":"2026-04-27T06:19:32","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1255"},"modified":"2026-04-27T06:20:23","modified_gmt":"2026-04-27T06:20:23","slug":"worm-gear-failure-modes-wear-pitting-and-tooth-breakage","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/cs\/worm-gear-failure-modes-wear-pitting-and-tooth-breakage\/","title":{"rendered":"Zp\u016fsoby selh\u00e1n\u00ed \u0161nekov\u00e9ho p\u0159evodu \u2013 opot\u0159eben\u00ed, d\u016flkov\u00e1 koroze a zlomen\u00ed zub\u016f"},"content":{"rendered":"
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Zp\u016fsoby selh\u00e1n\u00ed \u0161nekov\u00e9ho p\u0159evodu \u2013 opot\u0159eben\u00ed, d\u016flkov\u00e1 koroze a zlomen\u00ed zub\u016f<\/h1>\n

Diagnostick\u00e1 p\u0159\u00edru\u010dka pro ter\u00e9n. Jak ka\u017ed\u00e1 z\u00e1vada vypad\u00e1 p\u0159es inspek\u010dn\u00ed otvor, jak zn\u00ed u motoru a co ji zp\u016fsobilo p\u0159ed v\u00fdm\u011bnou \u0161nekov\u00e9ho kola.<\/p>\n

Promluvte si s in\u017een\u00fdrem \u2192<\/a><\/p>\n<\/div>\n

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

T\u00e9m\u011b\u0159 ka\u017edou poruchu \u0161nekov\u00e9ho p\u0159evodu p\u0159edstavuje p\u011bt druh\u016f poruch: abrazivn\u00ed opot\u0159eben\u00ed (postupn\u00e9, zp\u016fsoben\u00e9 prachem), adhezn\u00ed opot\u0159eben\u00ed nebo od\u011br (n\u00e1hl\u00e9, zp\u016fsoben\u00e9 maz\u00e1n\u00edm), d\u016flkov\u00e1 koroze (\u00fanava z cyklick\u00e9ho nam\u00e1h\u00e1n\u00ed, vyv\u00edj\u00ed se po tis\u00edce hodin), plastick\u00e1 deformace (p\u0159et\u00ed\u017een\u00ed, vyv\u00edj\u00ed se b\u011bhem n\u011bkolika sekund) a zlomen\u00ed zubu (termin\u00e1ln\u00ed, p\u0159ekvap\u00ed ka\u017ed\u00e9ho). Ka\u017ed\u00fd z nich zanech\u00e1v\u00e1 na povrchu \u0161nekov\u00e9ho kola charakteristick\u00e9 stopy. Spr\u00e1vn\u00e9 \u010dten\u00ed t\u011bchto stop b\u011bhem pl\u00e1novan\u00e9 kontroly je to, co odli\u0161uje 30minutov\u00fd preventivn\u00ed z\u00e1sah od 6hodinov\u00e9 nouzov\u00e9 opravy. V\u00fdm\u011bna d\u00edl\u016f bez diagnostiky druhu poruchy je nej\u010dast\u011bj\u0161\u00edm d\u016fvodem, pro\u010d stejn\u00fd pohon sel\u017ee znovu o t\u0159i m\u011bs\u00edce pozd\u011bji.<\/p>\n<\/div>\n

Nejd\u0159\u00edve diagnostikovat, pak vym\u011bnit<\/h2>\n

V\u011bt\u0161ina poruch \u0161nekov\u00fdch p\u0159evod\u016f, kter\u00e9 m\u00e1me vy\u0161et\u0159ovat, m\u00e1 jeden spole\u010dn\u00fd rys \u2013 sou\u010d\u00e1sti ji\u017e byly jednou vym\u011bn\u011bny a stejn\u00fd pohon se zhruba ve stejn\u00e9m \u010dasov\u00e9m okn\u011b znovu pokazil. \u00dadr\u017eb\u00e1\u0159sk\u00fd t\u00fdm identifikoval po\u0161kozenou sou\u010d\u00e1stku, vym\u011bnil ji za novou a probl\u00e9m pova\u017eoval za uzav\u0159en\u00fd. O \u0161est a\u017e dvan\u00e1ct m\u011bs\u00edc\u016f pozd\u011bji vykazuje nov\u00e9 \u0161nekov\u00e9 kolo stejn\u00fd vzorec opot\u0159eben\u00ed jako vadn\u00e9. To nen\u00ed probl\u00e9m s kvalitou sou\u010d\u00e1stky. To je chyb\u011bj\u00edc\u00ed diagn\u00f3za.<\/p>\n

Ka\u017ed\u00e9 selh\u00e1n\u00ed \u0161nekov\u00e9ho kola zanech\u00e1v\u00e1 stopy na boc\u00edch zub\u016f. Vzor, um\u00edst\u011bn\u00ed a hloubka po\u0161kozen\u00ed v\u00e1m napov\u00ed, jak\u00fd fyzik\u00e1ln\u00ed mechanismus selh\u00e1n\u00ed zp\u016fsobil. Jakmile mechanismus zn\u00e1te, m\u016f\u017eete odstranit skute\u010dnou p\u0159\u00ed\u010dinu (p\u0159et\u00ed\u017een\u00ed, nespr\u00e1vn\u00e9 mazivo, kontaminace, nesouosost, vibrace) nam\u00edsto opakovan\u00e9 v\u00fdm\u011bny d\u00edl\u016f. Tento \u010dl\u00e1nek proch\u00e1z\u00ed p\u011bti poruchov\u00fdmi re\u017eimy, kter\u00e9 pokr\u00fdvaj\u00ed t\u00e9m\u011b\u0159 v\u0161echny poruchy \u0161nekov\u00fdch p\u0159evod\u016f, jak ka\u017ed\u00fd z nich vypad\u00e1 p\u0159i kontrole bok\u016f zub\u016f, co oper\u00e1tor obvykle hl\u00e1s\u00ed p\u0159ed selh\u00e1n\u00edm a jak\u00e1 jsou n\u00e1pravn\u00e1 opat\u0159en\u00ed.<\/p>\n

Re\u017eim 1 \u2013 Abrazivn\u00ed opot\u0159eben\u00ed<\/h2>\n
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Abrazivn\u00ed opot\u0159eben\u00ed je nejpomalej\u0161\u00edm a nejp\u0159edv\u00eddateln\u011bj\u0161\u00edm zp\u016fsobem selh\u00e1n\u00ed \u0161nekov\u00e9ho p\u0159evodu. Tvrd\u00e9 \u010d\u00e1stice v mazivu \u2013 obvykle prach, brusn\u00e9 t\u0159\u00edsky, oxidov\u00e9 \u00falomky ze z\u00e1b\u011bhu nebo kontaminace z praskl\u00e9ho olejov\u00e9ho t\u011bsn\u011bn\u00ed \u2013 proch\u00e1zej\u00ed kontaktn\u00ed z\u00f3nou \u0161neku na kole a po\u0161kr\u00e1bou oba povrchy. Bronzov\u00e9 kolo trp\u00ed v\u00edce ne\u017e ocelov\u00fd \u0161nek, proto\u017ee bronz je m\u011bk\u010d\u00ed materi\u00e1l.<\/p>\n

Boky zub\u016f vykazuj\u00ed rovnob\u011b\u017en\u00e9 \u0161kr\u00e1bance prob\u00edhaj\u00edc\u00ed pod\u00e9l sm\u011bru kluzu, rovnom\u011brn\u00e9 po cel\u00e9 aktivn\u00ed plo\u0161e, bez d\u016flk\u016f nebo kr\u00e1ter\u016f. Profil zubu kola se postupn\u011b zten\u010duje \u2013 m\u011b\u0159iteln\u00e9 jako n\u00e1r\u016fst v\u016fle na v\u011bnci \u0161nekov\u00e9ho kola v pr\u016fb\u011bhu m\u011bs\u00edc\u016f provozu.<\/p>\n<\/div>\n

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St\u00ed\u017enost provozovatele:<\/strong> \u201eP\u0159evodovka je hlu\u010dn\u011bj\u0161\u00ed\u201c \u2013 typick\u00e9 3 a\u017e 6 m\u011bs\u00edc\u016f p\u0159ed poruchou. V\u016fle se sly\u0161iteln\u011b zvy\u0161uje p\u0159i zm\u011bn\u011b zat\u00ed\u017een\u00ed; intervaly v\u00fdm\u011bny oleje se zkracuj\u00ed, proto\u017ee olej tmavne rychleji, ne\u017e by m\u011bl.<\/p>\n

Z\u00e1kladn\u00ed p\u0159\u00ed\u010diny:<\/strong> roztr\u017een\u00e9 olejov\u00e9 t\u011bsn\u011bn\u00ed, kter\u00e9 vpust\u00ed prach, pra\u0161n\u00e9 prost\u0159ed\u00ed s konstrukc\u00ed okrajov\u00e9ho t\u011bsn\u011bn\u00ed, kontaminace zaveden\u00e1 b\u011bhem dopl\u0148ov\u00e1n\u00ed oleje nebo vynechan\u00e1 v\u00fdm\u011bna oleje, co\u017e vede k hromad\u011bn\u00ed ne\u010distot z opot\u0159eben\u00ed. M\u00e9n\u011b \u010dasto je abrazivn\u00ed opot\u0159eben\u00ed zp\u016fsobeno t\u00edm, \u017ee \u010d\u00e1stice p\u0159i z\u00e1b\u011bhu nejsou zachyceny magnetickou z\u00e1tkou nebo filtrem.<\/p>\n

N\u00e1pravn\u00e1 opat\u0159en\u00ed:<\/strong> Vypus\u0165te a propl\u00e1chn\u011bte olejovou vanu p\u0159evodovky. Vym\u011b\u0148te po\u0161kozen\u00e1 t\u011bsn\u011bn\u00ed; vylep\u0161ete konstrukci t\u011bsn\u011bn\u00ed (b\u0159itov\u00e9 t\u011bsn\u011bn\u00ed plus prachov\u00e9 t\u011bsn\u011bn\u00ed nebo labyrintov\u00e9 t\u011bsn\u011bn\u00ed pro velmi pra\u0161n\u00fd provoz). P\u0159idejte magnetickou vypou\u0161t\u011bc\u00ed z\u00e1tku, pokud ji\u017e nen\u00ed namontov\u00e1na. Nainstalujte ventil pro odb\u011br vzork\u016f oleje a spus\u0165te program anal\u00fdzy oleje. Vym\u011b\u0148te \u0161nekov\u00e9 kolo, pokud nam\u011b\u0159en\u00e1 v\u016fle p\u0159es\u00e1hne 50 procent p\u016fvodn\u00ed specifikace \u2013 opot\u0159eben\u00ed za t\u00edmto bodem ztr\u00e1c\u00ed p\u016fvodn\u00ed profil zubu a urychluje poruchu.<\/p>\n

Re\u017eim 2 \u2013 Opot\u0159eben\u00ed a od\u011br zp\u016fsoben\u00e9 adhez\u00ed<\/h2>\n

Adhezn\u00ed opot\u0159eben\u00ed, pokud je siln\u00e9, se st\u00e1v\u00e1 od\u011brem \u2013 n\u011bkdy se mu tak\u00e9 \u0159\u00edk\u00e1 r\u00fdhov\u00e1n\u00ed. Zat\u00edmco abrazivn\u00ed opot\u0159eben\u00ed postupn\u011b postupuje v pr\u016fb\u011bhu m\u011bs\u00edc\u016f, k od\u011bru doch\u00e1z\u00ed b\u011bhem n\u011bkolika sekund. Mazac\u00ed film se rozpadne, \u0161nek a \u0161nekov\u00e9 kolo se pod vysok\u00fdm tlakem dot\u00fdkaj\u00ed kovu, t\u0159en\u00edm se sva\u0159\u00ed drobn\u00e9 kovov\u00e9 kousky a svary se p\u0159i dal\u0161\u00ed ot\u00e1\u010dce roztrhnou. V\u00fdsledkem je drsn\u00e9, roztrhan\u00e9 a rozmazan\u00e9 po\u0161kozen\u00ed, kter\u00e9 se v\u016fbec nepodob\u00e1 le\u0161t\u011bn\u00fdm bok\u016fm zub\u016f zdrav\u00e9ho \u0161nekov\u00e9ho kola.<\/p>\n

Boky zub\u016f vykazuj\u00ed v\u00fdrazn\u00e9 matn\u00e9 pruhy prob\u00edhaj\u00edc\u00ed pod\u00e9l sm\u011bru kluzu. Po\u0161kozen\u00e9 oblasti jsou \u010dasto zbarven\u00e9 \u2013 namodral\u00e9 nebo matn\u011b \u0161ed\u00e9 \u2013 v d\u016fsledku lok\u00e1ln\u00edho zah\u0159\u00e1t\u00ed. Po\u0161kozen\u00ed se obvykle koncentruje v bl\u00edzkosti \u0161pi\u010dek nebo ko\u0159en\u016f zub\u016f, kde je kluzn\u00e1 rychlost nejvy\u0161\u0161\u00ed, nebo na jednom konci na \u0161\u00ed\u0159ku \u010dela, pokud je ozuben\u00e9 kolo \u0161patn\u011b vyrovn\u00e1no. P\u0159i zv\u011bt\u0161en\u00ed se povrch jev\u00ed sp\u00ed\u0161e jako roztr\u017een\u00fd a rozmazan\u00fd ne\u017e po\u0161kr\u00e1ban\u00fd.<\/p>\n

St\u00ed\u017enost provozovatele:<\/strong> n\u00e1hl\u00fd teplotn\u00ed skok na sk\u0159\u00edni p\u0159evodovky, \u010dasto b\u011bhem n\u011bkolika hodin po spu\u0161t\u011bn\u00ed. Z\u00e1pach sp\u00e1leniny z hork\u00e9ho oleje. Pohon se m\u016f\u017ee p\u0159i norm\u00e1ln\u00edm zat\u00ed\u017een\u00ed zastavit. Ne\u017e si toho obsluha v\u0161imne, je ji\u017e po\u0161kozen\u00ed nap\u00e1ch\u00e1no.<\/p>\n

Z\u00e1kladn\u00ed p\u0159\u00ed\u010diny:<\/strong> nespr\u00e1vn\u00e1 viskozita maziva (p\u0159\u00edli\u0161 \u0159\u00eddk\u00e9 pro danou provozn\u00ed teplotu), n\u00edzk\u00e1 hladina oleje, kter\u00e1 zp\u016fsobuje \u010d\u00e1ste\u010dn\u00fd such\u00fd chod \u0161neku p\u0159i studen\u00e9m startu, siln\u00e9 p\u0159et\u00ed\u017een\u00ed, kter\u00e9 naru\u0161\u00ed hydrodynamick\u00fd film, nebo \u2013 u star\u0161\u00edch konstrukc\u00ed \u2013 z\u00e1b\u011bh bez z\u00e1b\u011bhov\u00e9ho oleje s vhodnou p\u0159\u00edsadou proti od\u011bru. Od\u011br na jednom konci \u010deln\u00ed plochy t\u00e9m\u011b\u0159 v\u017edy znamen\u00e1 nesouosost h\u0159\u00eddele \u0161neku s osou \u0161nekov\u00e9ho kola v\u011bt\u0161\u00ed ne\u017e standardn\u00ed tolerance 0,0005 palce na palec.<\/p>\n

N\u00e1pravn\u00e1 opat\u0159en\u00ed:<\/strong> Vym\u011b\u0148te \u0161neka i \u0161nekov\u00e9 kolo \u2013 po\u0161kozen\u00ed kter\u00e9koli z t\u011bchto sou\u010d\u00e1st\u00ed od\u011brem rychle po\u0161kod\u00ed spojovac\u00ed \u010d\u00e1st, jakmile se motor obnov\u00ed. Ov\u011b\u0159te, zda se druh maziva shoduje se skute\u010dnou provozn\u00ed teplotou; pokud teplota olejov\u00e9 vany p\u0159ed poruchou p\u0159ekro\u010dila 80 stup\u0148\u016f Celsia, p\u0159ejd\u011bte z miner\u00e1ln\u00edho na syntetick\u00fd olej PAO. Zkontrolujte, zda se zna\u010dka hladiny oleje shoduje se skute\u010dnou mont\u00e1\u017en\u00ed orientac\u00ed. P\u0159ed op\u011btovnou mont\u00e1\u017e\u00ed ov\u011b\u0159te kolmost h\u0159\u00eddele k ose pomoc\u00ed \u00fachylkom\u011bru. Pokud bylo p\u0159\u00ed\u010dinou p\u0159et\u00ed\u017een\u00ed, \u0159e\u0161te danou aplikaci \u2013 nevym\u011b\u0148ujte pouze d\u00edly.<\/p>\n

Re\u017eim 3 \u2013 Koroze<\/h2>\n
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Korozivn\u00ed d\u016flek je \u00fanava zp\u016fsoben\u00e1 kontaktn\u00edm nap\u011bt\u00edm \u2013 na povrchu zubu se objevuj\u00ed mal\u00e9 kr\u00e1tery tam, kde cyklick\u00e9 nap\u011bt\u00ed \u0161\u00ed\u0159\u00ed podpovrchov\u00e9 trhliny, dokud se kov mezi trhlinou a povrchem neuvoln\u00ed. Ka\u017ed\u00fd d\u016flek je v\u00fdsledkem milion\u016f zat\u011b\u017eovac\u00edch cykl\u016f. \u0160nekov\u00e1 kola se obvykle d\u016flkuj\u00ed na bronzov\u00e9m kole, nikoli na ocelov\u00e9m \u0161neku, proto\u017ee kolo za\u017e\u00edv\u00e1 zhruba stejn\u00fd po\u010det cykl\u016f na ot\u00e1\u010dku jako \u0161nek, ale m\u011bk\u010d\u00ed materi\u00e1l je v\u00edce po\u0161kozen kontaktn\u00edm nap\u011bt\u00edm na cyklus.<\/p>\n

Boky zub\u016f vykazuj\u00ed mal\u00e9 kulat\u00e9 nebo ov\u00e1ln\u00e9 kr\u00e1tery, obvykle o pr\u016fm\u011bru 0,5 a\u017e 3 milimetry, roztrou\u0161en\u00e9 po kontaktn\u00edm p\u00e1su. Po\u010d\u00e1te\u010dn\u00ed d\u016flkov\u00e1 koroze se m\u016f\u017ee stabilizovat, jakmile se vyv\u00fd\u0161en\u00e1 m\u00edsta vyle\u0161t\u00ed a zat\u00ed\u017een\u00ed se p\u0159erozd\u011bl\u00ed. Postupn\u00e1 d\u016flkov\u00e1 koroze nazna\u010duje, \u017ee kontaktn\u00ed nap\u011bt\u00ed je st\u00e1le p\u0159\u00edli\u0161 vysok\u00e9.<\/p>\n<\/div>\n<\/div>\n

St\u00ed\u017enost provozovatele:<\/strong> Zv\u00fd\u0161en\u00e9 vibrace a hluk, kter\u00e9 se postupn\u011b vyv\u00edjej\u00ed po tis\u00edce provozn\u00edch hodin. Anal\u00fdza vibrac\u00ed ukazuje zv\u00fd\u0161en\u00e9 amplitudy na frekvenci z\u00e1b\u011bru \u0161nekov\u00e9ho kola a jeho harmonick\u00fdch. Pohon st\u00e1le funguje, ale obsluha jej popisuj\u00ed jako \u201enest\u00e1l\u00fd\u201c nebo \u201est\u011b\u017euj\u00edc\u00ed si\u201c.<\/p>\n

Z\u00e1kladn\u00ed p\u0159\u00ed\u010diny:<\/strong> kontaktn\u00ed nap\u011bt\u00ed chronicky nad mez\u00ed \u00fanavov\u00e9 \u017eivotnosti materi\u00e1lu kola. To obvykle znamen\u00e1, \u017ee aplikace zat\u011b\u017euje pohon v\u00edce, ne\u017e se p\u0159edpokl\u00e1dalo v p\u016fvodn\u00ed specifikaci \u2013 zv\u00fd\u0161en\u00fd v\u00fdstupn\u00ed moment, prodlou\u017een\u00fd pracovn\u00ed cyklus nebo materi\u00e1l kola byl specifikov\u00e1n na spodn\u00ed hranici povolen\u00e9ho rozsahu pevnosti. U star\u0161\u00edch kol se m\u016f\u017ee tak\u00e9 vyvinout d\u016flkov\u00e1 r\u00fdha v d\u016fsledku nahromad\u011bn\u00fdch cykl\u016f i p\u0159i spr\u00e1vn\u00e9m zat\u00ed\u017een\u00ed, jednodu\u0161e proto, \u017ee dos\u00e1hla konce sv\u00e9 \u00fanavov\u00e9 \u017eivotnosti.<\/p>\n

N\u00e1pravn\u00e1 opat\u0159en\u00ed:<\/strong> Lehk\u00e9 po\u010d\u00e1te\u010dn\u00ed d\u016flkov\u00e9 po\u0161kozen\u00ed (m\u00e9n\u011b ne\u017e 1 procento kontaktn\u00ed plochy) je \u010dasto norm\u00e1ln\u00edm jevem p\u0159i z\u00e1b\u011bhu a po z\u00e1b\u011bhu se stabilizuje. Postupn\u00e9 d\u016flkov\u00e9 po\u0161kozen\u00ed (v\u00edce ne\u017e 5 procent kontaktn\u00ed plochy, kter\u00e9 se zv\u011bt\u0161uj\u00ed s ka\u017ed\u00fdm kontroln\u00edm cyklem) vy\u017eaduje z\u00e1sah. Mo\u017enosti: sn\u00ed\u017een\u00ed v\u00fdkonu aplikace, p\u0159echod na hou\u017eevnat\u011bj\u0161\u00ed materi\u00e1l kol (odst\u0159ediv\u011b lit\u00fd bronz m\u00edsto lit\u00e9ho do p\u00edsku nebo hlin\u00edkov\u00fd bronz m\u00edsto fosforov\u00e9ho bronzu) nebo p\u0159echod na v\u011bt\u0161\u00ed velikost r\u00e1mu. V\u00fdm\u011bna po\u0161kozen\u00fdch d\u00edl\u016f za stejn\u00e9 specifikace vr\u00e1t\u00ed stejnou poruchu b\u011bhem podobn\u00e9ho po\u010dtu hodin.<\/p>\n

Re\u017eim 4 \u2013 Plastick\u00e1 deformace<\/h2>\n

Plastick\u00e1 deformace je po\u0161kozen\u00ed p\u0159et\u00ed\u017een\u00edm, kter\u00e9 sice zub \u00fapln\u011b nezlomilo, ale trvale ho zdeformovalo. Bronz, kter\u00fd je m\u011bk\u010d\u00ed, se deformuje d\u0159\u00edve ne\u017e ocel. Zat\u00edmco d\u016flkov\u00e1 koroze se rozv\u00edj\u00ed tis\u00edce hodin, k plastick\u00e9 deformaci m\u016f\u017ee doj\u00edt b\u011bhem jedin\u00e9 r\u00e1zov\u00e9 ud\u00e1losti \u2013 n\u00e1hl\u00e9ho zablokov\u00e1n\u00ed, chvilkov\u00e9ho nadproudu motoru, n\u00e1razu na polohovac\u00ed za\u0159\u00edzen\u00ed v koncov\u00e9 poloze.<\/p>\n

Boky zubu vykazuj\u00ed tekut\u00fd kov \u2013 pracovn\u00ed plocha je m\u00edrn\u011b stla\u010den\u00e1, p\u0159i\u010dem\u017e vytla\u010den\u00fd kov je vytla\u010den nahoru na \u0161pi\u010dce nebo ko\u0159eni zubu a tvo\u0159\u00ed mal\u00fd okraj. N\u011bkdy se tomu \u0159\u00edk\u00e1 \u201eodvalov\u00e1n\u00ed\u201c povrchu zubu. P\u016fvodn\u00ed profil zubu ji\u017e nen\u00ed viditeln\u00fd. M\u011b\u0159en\u00ed v\u016fle zubu vykazuj\u00ed nekonzistentn\u00ed hodnoty kolem kola \u2013 n\u011bkter\u00e9 zuby m\u011b\u0159\u00ed norm\u00e1ln\u011b, jin\u00e9 m\u011b\u0159\u00ed t\u011bsn\u011b, proto\u017ee deformace posunula jejich rozte\u010d.<\/p>\n

St\u00ed\u017enost provozovatele:<\/strong> Obvykle n\u00e1sleduje po zn\u00e1m\u00e9 ud\u00e1losti \u2013 zablokov\u00e1n\u00ed pohonu, vypnut\u00ed nadproudu, hav\u00e1rii. N\u011bkdy se neobjev\u00ed \u017e\u00e1dn\u00e1 st\u00ed\u017enost, dokud dal\u0161\u00ed rutinn\u00ed kontrola nezjist\u00ed nerovnom\u011brn\u00e9 profily zub\u016f. Pohon m\u016f\u017ee pokra\u010dovat v provozu, proto\u017ee po\u010det zub\u016f a p\u0159evodov\u00fd pom\u011br se nezm\u011bnily, ale vzor z\u00e1b\u011bru je nyn\u00ed nerovnom\u011brn\u00fd a d\u016flkov\u00e1 tvorba se zrychl\u00ed.<\/p>\n

Z\u00e1kladn\u00ed p\u0159\u00ed\u010diny:<\/strong> R\u00e1zov\u00e9 zat\u00ed\u017een\u00ed p\u0159esahuj\u00edc\u00ed mez kluzu bronzu. B\u011b\u017en\u00e9 sc\u00e9n\u00e1\u0159e: n\u00e1hl\u00e9 zachycen\u00ed b\u0159emene zved\u00e1ku za p\u0159ek\u00e1\u017eku; zaseknut\u00ed dopravn\u00edku n\u00e1sledovan\u00e9 pokusem motoru o jeho uvoln\u011bn\u00ed p\u0159i pln\u00e9m kroutic\u00edm momentu; n\u00e1raz aktu\u00e1toru do tvrd\u00e9ho dorazu bez m\u011bkk\u00e9ho dorazu v \u0159\u00eddic\u00edm syst\u00e9mu; navij\u00e1k, kde se lano zachytilo a pot\u00e9 n\u00e1hle uvolnilo. Navrhovan\u00e9 provozn\u00ed faktory jsou ur\u010deny k absorbov\u00e1n\u00ed m\u00edrn\u00e9ho p\u0159et\u00ed\u017een\u00ed; nep\u0159e\u017eij\u00ed p\u0159echodn\u00e9 zat\u00ed\u017een\u00ed n\u011bkolikan\u00e1sobkem nomin\u00e1ln\u00ed hodnoty.<\/p>\n

N\u00e1pravn\u00e1 opat\u0159en\u00ed:<\/strong> Vym\u011b\u0148te \u0161nekov\u00e9 kolo \u2013 deformovan\u00e9 zuby se neobnov\u00ed. Zkontrolujte \u0161nekov\u00fd h\u0159\u00eddel, zda m\u00e1 stejn\u00fd vzorec, a v p\u0159\u00edpad\u011b po\u0161kozen\u00ed jej vym\u011b\u0148te. Nejd\u016fle\u017eit\u011bj\u0161\u00ed je \u0159e\u0161it danou aplikaci: nainstalujte omezova\u010d momentu, elektronickou ochranu proti nadproudu, m\u011bkk\u00e9 dorazy v \u0159\u00eddic\u00edm softwaru nebo mechanickou pojistku, nap\u0159\u00edklad st\u0159i\u017en\u00fd kol\u00edk. Dal\u0161\u00ed p\u0159et\u00ed\u017een\u00ed zdeformuje nov\u00e9 d\u00edly stejn\u00fdm zp\u016fsobem.<\/p>\n

Re\u017eim 5 \u2013 Zlomen\u00ed zubu<\/h2>\n
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Zlomen\u00ed zubu je termin\u00e1ln\u00ed porucha \u2013 jeden nebo v\u00edce zub\u016f kola se fyzicky odlom\u00ed. Pohon se zastav\u00ed nebo b\u011b\u017e\u00ed nerovnom\u011brn\u011b, p\u0159i\u010dem\u017e zlomen\u00e9 zuby poskakuj\u00ed uvnit\u0159 p\u0159evodovky. Zlomen\u00ed zp\u016fsobuj\u00ed dva odli\u0161n\u00e9 mechanismy: \u00fanava v ohybu (pomal\u00e1, po nahromad\u011bn\u00fdch cyklech) a lom v d\u016fsledku p\u0159et\u00ed\u017een\u00ed (n\u00e1hl\u00fd, po jednor\u00e1zov\u00e9m nadm\u011brn\u00e9m zat\u00ed\u017een\u00ed).<\/p>\n<\/div>\n<\/div>\n

Lom v d\u016fsledku \u00fanavy v ohybu vykazuje lomov\u00fd povrch se dv\u011bma odli\u0161n\u00fdmi z\u00f3nami: hladkou oblast\u00ed se zak\u0159iven\u00fdmi stopami po lomu, kde trhlina postupovala cyklus po cyklu, a drsnou oblast\u00ed, kde byl kone\u010dn\u00fd nestabiln\u00ed lom dokon\u010den v jednom zat\u011b\u017eovac\u00edm cyklu. Trhlina obvykle za\u010d\u00edn\u00e1 v m\u00edst\u011b zaoblen\u00ed ko\u0159ene zubu na zat\u00ed\u017een\u00e9m boku, kde se koncentruje ohybov\u00e9 nap\u011bt\u00ed. V\u00edce zub\u016f \u010dasto vykazuje podobn\u00e9 po\u0161kozen\u00ed v r\u016fzn\u00fdch f\u00e1z\u00edch postupu trhliny.<\/p>\n

Lom z p\u0159et\u00ed\u017een\u00ed vykazuje jedin\u00fd drsn\u00fd lomov\u00fd povrch bez stop po odlesku. \u010casto se zlom\u00ed pouze jeden zub. Zlom se m\u016f\u017ee odd\u011blit od ko\u0159ene zubu, pokud p\u0159et\u00ed\u017een\u00ed zp\u016fsobilo neobvykl\u00e9 nap\u011bt\u00ed \u2013 nap\u0159\u00edklad zub se m\u016f\u017ee roz\u0161t\u011bpit pod\u00e9l \u0161\u00ed\u0159ky \u010deln\u00ed plochy, pokud se v s\u00edti zasekl ciz\u00ed p\u0159edm\u011bt.<\/p>\n

St\u00ed\u017enost provozovatele:<\/strong> Pro \u00fanavu v ohybu stejn\u00fd postup vibrac\u00ed jako v p\u0159\u00edpad\u011b d\u016flkov\u00e9 koroze, kon\u010d\u00edc\u00ed n\u00e1hl\u00fdm zvukem a zastaven\u00edm pohonu. Pro lom z p\u0159et\u00ed\u017een\u00ed sly\u0161iteln\u00fd t\u0159esk n\u00e1sledovan\u00fd zastaven\u00edm pohonu \u2013 obvykle v okam\u017eiku p\u0159et\u00ed\u017een\u00ed.<\/p>\n

Z\u00e1kladn\u00ed p\u0159\u00ed\u010diny:<\/strong> U \u00fanavy v ohybu se jedn\u00e1 o stejn\u00e9 chronick\u00e9 p\u0159et\u00ed\u017een\u00ed, kter\u00e9 zp\u016fsobuje d\u016flkovou korozi, jen v jin\u00e9 dr\u00e1ze nap\u011bt\u00ed. Ko\u0159enov\u00fd zaoblen\u00ed je v ka\u017ed\u00e9m cyklu zat\u00ed\u017eeno tahem; pokud toto nap\u011bt\u00ed p\u0159ekro\u010d\u00ed mez \u00fanavy bronzu, nakonec dojde ke vzniku trhliny. U lomu v d\u016fsledku p\u0159et\u00ed\u017een\u00ed se jedn\u00e1 o jedin\u00fd p\u0159echodn\u00fd jev \u2013 podobn\u00fd p\u0159\u00edpad plastick\u00e9 deformace, ale se zat\u00ed\u017een\u00edm dostate\u010dn\u011b vysok\u00fdm, aby se zub zlomil, a ne jen ohnul.<\/p>\n

N\u00e1pravn\u00e1 opat\u0159en\u00ed:<\/strong> Vym\u011b\u0148te \u0161neka a \u0161nekov\u00e9 kolo spole\u010dn\u011b \u2013 zlomen\u00e9 zuby produkuj\u00ed kovov\u00e9 \u00falomky, kter\u00e9 t\u00e9m\u011b\u0159 jist\u011b po\u0161kodily povrchy z\u00e1vit\u016f \u0161neku. Vypus\u0165te, propl\u00e1chn\u011bte a znovu napl\u0148te p\u0159evodovku, abyste odstranili zlomen\u00fd materi\u00e1l; zkontrolujte sk\u0159\u00ed\u0148, zda nedo\u0161lo k po\u0161kozen\u00ed n\u00e1razem. Aplikaci \u0159e\u0161te stejn\u011b jako plastickou deformaci. Zv\u011bt\u0161en\u00ed \u0161\u00ed\u0159ky \u010deln\u00ed plochy kola, v\u011bt\u0161\u00ed modul nebo siln\u011bj\u0161\u00ed bronz (hlin\u00edkov\u00fd bronz) zvy\u0161uje mez \u00fanavy v ohybu, pokud p\u0159\u00ed\u010dinou bylo chronick\u00e9 vysok\u00e9 cyklov\u00e1n\u00ed.<\/p>\n

Stru\u010dn\u00fd p\u0159ehled \u2013 diagn\u00f3za na prvn\u00ed pohled<\/h2>\n

Jakmile sejmete kontroln\u00ed kryt a prohl\u00e9dnete si zuby \u0161nekov\u00e9ho kola, viditeln\u00e9 po\u0161kozen\u00ed obvykle b\u011bhem n\u011bkolika sekund za\u0159ad\u00ed poruchu do jednoho z p\u011bti re\u017eim\u016f. N\u00ed\u017ee je uvedena referen\u010dn\u00ed matice v ter\u00e9nu, kterou si na\u0161i z\u00e1kazn\u00edci \u00fadr\u017eby vytisknou a nalep\u00ed na vnit\u0159n\u00ed stranu v\u00edka sv\u00e9 bedny s n\u00e1\u0159ad\u00edm.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Vizu\u00e1ln\u00ed podn\u011bt na boku zubu<\/th>\n\u010cas na rozvoj<\/th>\nRe\u017eim selh\u00e1n\u00ed<\/th>\nPravd\u011bpodobn\u00e1 p\u0159\u00ed\u010dina<\/th>\n<\/tr>\n<\/thead>\n
Rovnob\u011b\u017en\u00e9 \u0161kr\u00e1bance ve sm\u011bru kluzu, rovnom\u011brn\u00e9 po cel\u00e9 plo\u0161e<\/td>\nM\u011bs\u00edce<\/td>\nAbrazivn\u00ed opot\u0159eben\u00ed<\/strong><\/td>\nKontaminace, natr\u017een\u00e1 pe\u010de\u0165<\/td>\n<\/tr>\n
Matn\u00e9 roztrhan\u00e9 pruhy, \u010dasto zbarven\u00e9 do modra nebo \u0161eda<\/td>\nSekundy a\u017e hodiny<\/td>\nOd\u011brky<\/strong><\/td>\nSelh\u00e1n\u00ed maz\u00e1n\u00ed, p\u0159et\u00ed\u017een\u00ed, nesouosost<\/td>\n<\/tr>\n
Mal\u00e9 kulat\u00e9 kr\u00e1tery roztrou\u0161en\u00e9 v kontaktn\u00edm p\u00e1su<\/td>\nTis\u00edce hodin<\/td>\nD\u016flkov\u00e1n\u00ed<\/strong><\/td>\nChronick\u00e9 p\u0159et\u00ed\u017een\u00ed, konec \u00fanavov\u00e9 \u017eivotnosti<\/td>\n<\/tr>\n
Tekouc\u00ed kov, posunut\u00fd b\u0159it na \u0161pi\u010dce nebo ko\u0159eni zubu<\/td>\nJedna ud\u00e1lost<\/td>\nPlastick\u00e1 deformace<\/strong><\/td>\nR\u00e1zov\u00e9 zat\u00ed\u017een\u00ed, zaseknut\u00ed, nadproud<\/td>\n<\/tr>\n
Zlomov\u00fd povrch se zak\u0159iven\u00fdmi stopami po pl\u00e1\u017ei<\/td>\nTis\u00edce hodin<\/td>\n\u00danava z ohybu<\/strong><\/td>\nChronick\u00e9 p\u0159et\u00ed\u017een\u00ed, poddimenzovan\u00e9 kolo<\/td>\n<\/tr>\n
Jedin\u00fd drsn\u00fd povrch zlomeniny, \u017e\u00e1dn\u00e9 stopy po pl\u00e1\u017ei<\/td>\nJedna ud\u00e1lost<\/td>\nZlomenina z p\u0159et\u00ed\u017een\u00ed<\/strong><\/td>\nSiln\u00e9 r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed, zaseknut\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Pozn\u00e1mka k in\u017een\u00fdrsk\u00e9mu stolu<\/div>\n

Kdy\u017e n\u00e1m \u00fadr\u017eb\u00e1\u0159sk\u00fd t\u00fdm za\u0161le vadn\u00e9 \u0161nekov\u00e9 kolo a po\u017e\u00e1d\u00e1 o n\u00e1hradu, v\u017edy si p\u0159ed odesl\u00e1n\u00edm \u010dehokoli vy\u017e\u00e1d\u00e1me dv\u011b fotografie: opot\u0159ebovan\u00fd bok zubu za dobr\u00e9ho osv\u011btlen\u00ed a povrch zlomen\u00e9ho zubu, pokud n\u011bjak\u00e9 zuby chyb\u00ed. P\u0159ibli\u017en\u011b ve 30 procentech p\u0159\u00edpad\u016f fotografie odhal\u00ed zp\u016fsob selh\u00e1n\u00ed, kter\u00fd poukazuje na syst\u00e9mov\u00fd probl\u00e9m aplikace, nikoli na probl\u00e9m s d\u00edly. Zasl\u00e1n\u00ed nov\u00e9ho kola bez diagnostiky p\u0159\u00ed\u010diny zaru\u010duje, \u017ee n\u00e1hrada sel\u017ee stejn\u00fdm zp\u016fsobem. Str\u00e1vit 10 minut fotografov\u00e1n\u00edm vadn\u00fdch d\u00edl\u016f p\u0159ed likvidac\u00ed je nejlevn\u011bj\u0161\u00ed pojistkou proti opakov\u00e1n\u00ed stejn\u00e9 poruchy.<\/p>\n<\/div>\n

T\u0159i skute\u010dn\u00e1 vy\u0161et\u0159ov\u00e1n\u00ed selh\u00e1n\u00ed<\/h2>\n

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\u0160et\u0159en\u00ed 1 \u2013 Podava\u010d korejsk\u00e9ho razic\u00edho lisu, opakuj\u00edc\u00ed se selh\u00e1n\u00ed kola<\/h3>\n

Lisovna hl\u00e1sila poruchu \u0161nekov\u00e9ho kola na podava\u010di c\u00edvek v intervalech zhruba 4 000 hodin \u2013 t\u0159i v\u00fdm\u011bny za 18 m\u011bs\u00edc\u016f. Fotografie posledn\u00ed poruchy uk\u00e1zaly tekut\u00fd kov na \u0161pi\u010dk\u00e1ch zub\u016f a nekonzistentn\u00ed v\u016fli kolem kola. Diagn\u00f3za: plastick\u00e1 deformace v d\u016fsledku opakovan\u00fdch n\u00e1raz\u016f na konci zdvihu, kdy\u017e podava\u010d narazil na sv\u016fj mechanick\u00fd doraz. P\u016fvodn\u00ed pohon byl dimenzov\u00e1n na stabiln\u00ed to\u010div\u00fd moment bez zohledn\u011bn\u00ed p\u0159echodov\u00fdch jev\u016f p\u0159i zastaven\u00ed. \u0158e\u0161en\u00ed: instalace elektronick\u00e9 funkce m\u011bkk\u00e9ho zastaven\u00ed do \u0159\u00eddic\u00edho syst\u00e9mu lisu pro zpomalen\u00ed podava\u010de p\u0159ed mechanick\u00fdm kontaktem. S nov\u00fdm ovl\u00e1d\u00e1n\u00edm dos\u00e1hlo dal\u0161\u00ed kolo 28 000 hodin p\u0159ed norm\u00e1ln\u00ed v\u00fdm\u011bnou \u2013 co\u017e je 7n\u00e1sobn\u00e9 zlep\u0161en\u00ed bez v\u00fdm\u011bny sou\u010d\u00e1st\u00ed krom\u011b samotn\u00e9ho kola.<\/p>\n

\u0160et\u0159en\u00ed 2 \u2013 Japonsk\u00fd mix\u00e9r, od\u011brky b\u011bhem prvn\u00edho m\u011bs\u00edce<\/h3>\n

V\u00fdrobce farmaceutick\u00fdch za\u0159\u00edzen\u00ed hl\u00e1sil po\u0161kozen\u00ed \u0161nekov\u00e9ho kola pohonu m\u00edcha\u010dky z nerezov\u00e9 oceli od\u011brem do 600 hodin od uveden\u00ed do provozu. Fotografie ukazovaly matn\u00e9 pruhy koncentrovan\u00e9 na jednom konci na \u0161\u00ed\u0159ku \u010deln\u00ed plochy, co\u017e je klasick\u00fd znak nesouososti. Diagn\u00f3za: pohon byl z v\u00fdroby se\u0159\u00edzen s pouzdrem na ploch\u00e9m p\u0159\u00edpravku, ale z\u00e1kazn\u00edk jej namontoval na m\u00edrn\u011b zkroucen\u00fd z\u00e1kladn\u00ed r\u00e1m. Odchylka 0,0008 palce na palec p\u0159ekro\u010dila toleranci 0,0005 palce na palec. Koncentrovan\u00e9 zat\u00ed\u017een\u00ed na jednom konci boku zubu zp\u016fsobilo lok\u00e1ln\u00ed naru\u0161en\u00ed olejov\u00e9ho filmu a rychl\u00e9 od\u00edr\u00e1n\u00ed. \u0158e\u0161en\u00ed: podlo\u017ete z\u00e1kladn\u00ed r\u00e1m do roviny s toleranc\u00ed, vym\u011b\u0148te po\u0161kozen\u00fd \u0161nek a p\u00e1r \u0161nekov\u00e9ho kola a repasovan\u00fd pohon b\u011b\u017eel norm\u00e1ln\u011b bez dal\u0161\u00edch probl\u00e9m\u016f. Pou\u010den\u00ed: se\u0159\u00edzen\u00ed mus\u00ed b\u00fdt ov\u011b\u0159eno po p\u0159i\u0161roubov\u00e1n\u00ed p\u0159evodovky ke skute\u010dn\u00e9 mont\u00e1\u017en\u00ed plo\u0161e, nikoli v tov\u00e1rn\u011b p\u0159ed odesl\u00e1n\u00edm.<\/p>\n

Vy\u0161et\u0159ov\u00e1n\u00ed 3 \u2013 Vietnamsk\u00e1 cement\u00e1rna, postupn\u00e1 d\u016flkov\u00e1 koroze<\/h3>\n

V\u00fdrobce cementu hl\u00e1sil postupn\u011b rostouc\u00ed vibrace pohonu dopravn\u00edku kalov\u00e9 sm\u011bsi po dobu 14 m\u011bs\u00edc\u016f, p\u0159i\u010dem\u017e b\u011bhem pl\u00e1novan\u00e9 inspekce byla viditeln\u00e1 m\u011b\u0159iteln\u00e1 d\u016flkov\u00e1 koroze. Fotografie uk\u00e1zaly, \u017ee zhruba 8 procent kontaktn\u00edho p\u00e1su bylo pokryto mal\u00fdmi kr\u00e1tery o velikosti 1 a\u017e 2 milimetry. Diagn\u00f3za: postupn\u00e1 d\u016flkov\u00e1 koroze v d\u016fsledku kontaktn\u00edho nap\u011bt\u00ed, co\u017e nazna\u010duje chronick\u00e9 p\u0159et\u00ed\u017een\u00ed. Vy\u0161et\u0159ov\u00e1n\u00ed odhalilo, \u017ee dopravn\u00edk p\u0159epravoval o 18 procent v\u00edce materi\u00e1lu za hodinu, ne\u017e bylo p\u016fvodn\u00ed specifikace propustnosti \u2013 oper\u00e1tor zv\u00fd\u0161il rychlost linky, aby splnil revidovan\u00e9 v\u00fdrobn\u00ed c\u00edle, ani\u017e by musel p\u0159ehodnocovat pohon. \u0158e\u0161en\u00ed: vr\u00e1tit propustnost na p\u016fvodn\u00ed specifikaci a nechat pohon vym\u011bnit na konci \u00fanavov\u00e9 \u017eivotnosti, nebo upgradovat \u0161nekov\u00e9 kolo na hlin\u00edkov\u00fd bronz (CuAl10Fe5Ni5) pro novou \u00farove\u0148 propustnosti. Z\u00e1kazn\u00edk si zvolil upgrade a repasovan\u00fd pohon nyn\u00ed b\u011b\u017e\u00ed ji\u017e v\u00edce ne\u017e 2 roky bez dal\u0161\u00edho progrese d\u016flkov\u00e9 koroze.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\nOt\u00e1zka: Jak pozn\u00e1m d\u016flkovou korozi od po\u0161kozen\u00ed koroz\u00ed?<\/summary>\n

Kr\u00e1tery v d\u016fsledku d\u016flkov\u00e9 koroze jsou zhruba kruhov\u00e9 nebo ov\u00e1ln\u00e9, nach\u00e1zej\u00ed se uvnit\u0159 aktivn\u00edho kontaktn\u00edho p\u00e1su na boku zubu a jsou koncentrov\u00e1ny tam, kde vrchol\u00ed kontaktn\u00ed nap\u011bt\u00ed. Korozn\u00ed po\u0161kozen\u00ed (z d\u016fvodu nespr\u00e1vn\u00e9ho chemick\u00e9ho slo\u017een\u00ed oleje napadaj\u00edc\u00edho bronz) se projevuje jako zbarven\u00e9 skvrny vn\u011b kontaktn\u00edho p\u00e1su i uvnit\u0159 n\u011bj, \u010dasto se zelen\u00fdmi nebo \u010dern\u00fdmi povrchov\u00fdmi filmy, a nen\u00ed koncentrov\u00e1no podle m\u00edsta nap\u011bt\u00ed. Pokud neopot\u0159ebovan\u00e9 plochy kola vykazuj\u00ed stejn\u00e9 zbarven\u00ed jako kontaktn\u00ed plocha, existuje podez\u0159en\u00ed na korozi. Pokud je po\u0161kozen pouze kontaktn\u00ed p\u00e1s, existuje podez\u0159en\u00ed na d\u016flkovou korozi.<\/p>\n<\/details>\n

\nOt\u00e1zka: M\u00e1m vadn\u00e9 d\u00edly poslat zp\u011bt dodavateli k anal\u00fdze?<\/summary>\n

V p\u0159\u00edpad\u011b reklamac\u00ed ano \u2013 v\u011bt\u0161ina renomovan\u00fdch dodavatel\u016f \u0161nekov\u00fdch p\u0159evod\u016f provede anal\u00fdzu vadn\u00fdch d\u00edl\u016f a vr\u00e1t\u00ed p\u00edsemnou zpr\u00e1vu. U opakuj\u00edc\u00edch se poruch na stejn\u00e9m pohonu, a to i mimo z\u00e1ruku, m\u016f\u017ee metalurgick\u00e1 anal\u00fdza zjistit, zda materi\u00e1l kola spl\u0148oval p\u016fvodn\u00ed specifikaci, nebo zda byl pod jakost\u00ed. N\u00e1klady na anal\u00fdzu (obvykle n\u011bkolik stovek USD) jsou zanedbateln\u00e9 ve srovn\u00e1n\u00ed s opakuj\u00edc\u00edm se vzorcem poruch. Nejprve za\u0161lete jasn\u00e9 fotografie; dodavatel obvykle m\u016f\u017ee na z\u00e1klad\u011b samotn\u00fdch sn\u00edmk\u016f posoudit, zda se fyzick\u00e1 anal\u00fdza vyplat\u00ed.<\/p>\n<\/details>\n

\nOt\u00e1zka: Je ob\u010dasn\u00e1 tvorba mal\u00fdch d\u016flk\u016f b\u011bhem z\u00e1b\u011bhu norm\u00e1ln\u00ed?<\/summary>\n

Ano. Bronzov\u00e1 \u0161nekov\u00e1 kola obvykle vykazuj\u00ed b\u011bhem prvn\u00edch 100 a\u017e 500 hodin ur\u010ditou deformaci povrchu a drobn\u00e9 d\u016flky, jakmile se kontaktn\u00ed vzor zab\u011bhne. Tyto d\u016flky p\u0159i z\u00e1b\u011bhu se obvykle stabilizuj\u00ed, jakmile se m\u00edsta s vysok\u00fdm nap\u011bt\u00edm vyle\u0161t\u00ed. D\u016flky, kter\u00e9 se d\u00e1le zv\u011bt\u0161uj\u00ed i \u200b\u200bpo 1 000 hodin\u00e1ch nebo p\u0159esahuj\u00ed 2 a\u017e 3 procenta kontaktn\u00ed plochy, ji\u017e nejsou z\u00e1b\u011bhem \u2013 jedn\u00e1 se o progresivn\u00ed \u00fanavu z kontaktn\u00edho nap\u011bt\u00ed a indikuj\u00ed chronick\u00e9 p\u0159et\u00ed\u017een\u00ed. D\u016fle\u017eit\u00e9 je rozli\u0161en\u00ed: d\u016flky p\u0159i z\u00e1b\u011bhu jsou ne\u0161kodn\u00e9, progresivn\u00ed d\u016flky jsou varovn\u00fdm sign\u00e1lem.<\/p>\n<\/details>\n

\nOt\u00e1zka: M\u016f\u017ee vibra\u010dn\u00ed anal\u00fdza p\u0159edpov\u011bd\u011bt selh\u00e1n\u00ed \u0161nekov\u00e9ho p\u0159evodu p\u0159ed viditeln\u00fdm po\u0161kozen\u00edm?<\/summary>\n

U d\u016flkov\u00e9 a ohybov\u00e9 \u00fanavy ano \u2013 vibra\u010dn\u00ed spektra vykazuj\u00ed zv\u00fd\u0161en\u00e9 amplitudy na frekvenci z\u00e1b\u011bru \u0161nekov\u00e9ho kola a jeho harmonick\u00fdch slo\u017eek s postupuj\u00edc\u00edm po\u0161kozen\u00edm. Trend v pr\u016fb\u011bhu m\u011bs\u00edc\u016f je obvykle spolehliv\u011bj\u0161\u00edm ukazatelem ne\u017e jednor\u00e1zov\u00fd absolutn\u00ed \u00fadaj. N\u00e1hl\u00e9 poruchy (od\u011brov\u00e1n\u00ed, lom v d\u016fsledku p\u0159et\u00ed\u017een\u00ed) se \u010dasto vyskytuj\u00ed p\u0159\u00edli\u0161 rychle na to, aby je bylo mo\u017en\u00e9 v\u010das zachytit monitorov\u00e1n\u00edm vibrac\u00ed. Anal\u00fdza oleje je dopl\u0148kov\u00e1: rostouc\u00ed po\u010det bronzov\u00fdch \u010d\u00e1stic v mazivu nazna\u010duje aktivn\u00ed opot\u0159eben\u00ed d\u0159\u00edve, ne\u017e se projev\u00ed po\u0161kozen\u00ed bok\u016f zub\u016f. M\u011bs\u00ed\u010dn\u00ed kontrola vibrac\u00ed a \u010dtvrtletn\u00ed anal\u00fdza oleje zachyt\u00ed v\u011bt\u0161inu progresivn\u00edch poruch s t\u00fddny nebo m\u011bs\u00edci p\u0159edstihu.<\/p>\n<\/details>\n

\nOt\u00e1zka: Jak se m\u011bn\u00ed zp\u016fsob selh\u00e1n\u00ed mezi hol\u00fdmi ozuben\u00fdmi koly a kompletn\u00edmi reduktory?<\/summary>\n

Selh\u00e1n\u00ed hol\u00e9ho ozuben\u00e9ho kola odhaluje jako mo\u017en\u00e9ho p\u0159isp\u00edvaj\u00edc\u00edho faktoru kryt vyroben\u00fd z\u00e1kazn\u00edkem \u2013 rovinnost mont\u00e1\u017ee, souosost, hladina maziva, kvalita t\u011bsn\u011bn\u00ed a v\u00fdb\u011br lo\u017eiska jsou prom\u011bnn\u00e9 ovl\u00e1dan\u00e9 z\u00e1kazn\u00edkem. Dokon\u010deno \u0161nekov\u00fd reduktor<\/a> Poruchy izoluj\u00ed prom\u011bnn\u00e9 na tov\u00e1rn\u00ed konfiguraci \u0159\u00edzenou dodavatelem, co\u017e zjednodu\u0161uje diagnostiku. P\u011bt re\u017eim\u016f selh\u00e1n\u00ed je v obou form\u00e1tech identick\u00fdch \u2013 m\u011bn\u00ed se pouze populace pravd\u011bpodobn\u00fdch p\u0159\u00ed\u010din. Nespr\u00e1vn\u00e9 souosost je \u010dast\u011bj\u0161\u00ed u instalac\u00ed hol\u00fdch ozuben\u00fdch kol; probl\u00e9my s mazivem jsou zhruba stejn\u00e9 u v\u0161ech form\u00e1t\u016f; p\u0159\u00ed\u010diny p\u0159et\u00ed\u017een\u00ed jsou zp\u016fsobeny aplikac\u00ed a nez\u00e1visl\u00e9 na form\u00e1tu.<\/p>\n<\/details>\n

\nOt\u00e1zka: Selh\u00e1v\u00e1 \u0161nekov\u00fd h\u0159\u00eddel jinak ne\u017e \u0161nekov\u00e9 kolo?<\/summary>\n

\u0160nekov\u00e9 kolo t\u00e9m\u011b\u0159 v\u017edy sel\u017ee jako prvn\u00ed, proto\u017ee bronz je m\u011bk\u010d\u00ed a rychleji se u n\u011bj hromad\u00ed \u00fanavov\u00e9 po\u0161kozen\u00ed ne\u017e u kalen\u00e9 oceli. Pokud se \u0161nekov\u00e1 h\u0159\u00eddel sel\u017ee, nej\u010dast\u011bj\u0161\u00edmi p\u0159\u00ed\u010dinami jsou od\u00edr\u00e1n\u00ed (siln\u00e1 ztr\u00e1ta maziva) a povrchov\u00e9 \u00fanavov\u00e9 odlupov\u00e1n\u00ed (velmi t\u011b\u017ek\u00fd nep\u0159etr\u017eit\u00fd provoz po tis\u00edce hodin). Zlomen\u00ed zubu \u0161nekov\u00e9 h\u0159\u00eddele je vz\u00e1cn\u00e9, pokud se v z\u00e1b\u011bru nezasekne ciz\u00ed p\u0159edm\u011bt a nezlom\u00ed z\u00e1vit. Strategie v\u00fdm\u011bny: p\u0159i selh\u00e1n\u00ed kter\u00e9koli z komponent v\u017edy vym\u011b\u0148te \u0161nek a \u0161nekov\u00e9 kolo jako sp\u00e1rovan\u00fd p\u00e1r \u2013 provoz nov\u00e9ho kola s opot\u0159ebovan\u00fdm \u0161nekem reprodukuje p\u016fvodn\u00ed vzorec selh\u00e1n\u00ed b\u011bhem zlomku konstruk\u010dn\u00ed \u017eivotnosti nov\u00e9 komponenty.<\/p>\n<\/details>\n

\nOt\u00e1zka: Kdy je vadn\u00e9 \u0161nekov\u00e9 kolo je\u0161t\u011b opraviteln\u00e9?<\/summary>\n

T\u00e9m\u011b\u0159 nikdy. Bronz nelze spolehliv\u011b sva\u0159it zp\u011bt na p\u016fvodn\u00ed profil zubu; i tam, kde lze geometrii obnovit, je \u00fanavov\u00e1 pevnost opraven\u00e9 z\u00f3ny nep\u0159edv\u00eddateln\u00e1. Ekonomicky racion\u00e1ln\u00edm rozhodnut\u00edm je t\u00e9m\u011b\u0159 ve v\u0161ech p\u0159\u00edpadech v\u00fdm\u011bna, nikoli oprava. Velmi velk\u00e1 pr\u016fmyslov\u00e1 kola (s rozte\u010dn\u00fdm pr\u016fm\u011brem nad 800 milimetr\u016f) je n\u011bkdy ekonomick\u00e9 znovu obr\u00e1b\u011bt \u2013 odstranit opot\u0159ebovan\u00fd povrch a znovu vy\u0159ezat profil zubu s men\u0161\u00edm modulem \u2013 ale to vy\u017eaduje kolo navr\u017een\u00e9 s v\u011bt\u0161\u00ed tlou\u0161\u0165kou materi\u00e1lu pro tento \u00fa\u010del. Standardn\u00ed katalogov\u00e1 kola nejsou ur\u010dena k op\u011btovn\u00e9mu obr\u00e1b\u011bn\u00ed.<\/p>\n<\/details>\n<\/div>\n

Diagnostika poruchov\u00e9ho re\u017eimu je rozd\u00edlem mezi trvalou opravou a opakuj\u00edc\u00ed se poruchou. P\u011bt v\u00fd\u0161e uveden\u00fdch re\u017eim\u016f je p\u0159\u00ed\u010dinou t\u00e9m\u011b\u0159 ka\u017ed\u00e9 poruchy \u0161nekov\u00e9ho p\u0159evodu, kter\u00e1 se dostane k na\u0161emu technick\u00e9mu odd\u011blen\u00ed. Vizu\u00e1ln\u00ed definice vadn\u00e9ho \u0161nekov\u00e9ho kola trv\u00e1 jen n\u011bkolik minut, jakmile v\u00edte, na co se zam\u011b\u0159it, a napov\u00ed v\u00e1m, zda dal\u0161\u00ed n\u00e1hradn\u00ed d\u00edl vydr\u017e\u00ed d\u00e9le ne\u017e ten vadn\u00fd. V\u00fdm\u011bna d\u00edl\u016f bez definice poruchy zaru\u010duje, \u017ee se stejn\u00e1 porucha v podobn\u00e9m \u010dasov\u00e9m horizontu zopakuje.<\/p>\n

Pro korejsk\u00e9 a japonsk\u00e9 konstruk\u010dn\u00ed t\u00fdmy v\u00fdrobc\u016f origin\u00e1ln\u00edch d\u00edl\u016f (OEM), kter\u00e9 zkoumaj\u00ed opakuj\u00edc\u00ed se selh\u00e1n\u00ed \u0161nekov\u00fdch p\u0159evod\u016f, na\u0161e technick\u00e9 odd\u011blen\u00ed kontroluje fotografie bok\u016f zub\u016f, identifikuje druh selh\u00e1n\u00ed a doporu\u010duje n\u00e1hradn\u00ed d\u00edly a zm\u011bnu aplikace, kter\u00e1 zabr\u00e1n\u00ed jejich opakov\u00e1n\u00ed. Standardn\u00ed katalog \u0161nekov\u00e9 p\u0159evodovky z fosforov\u00e9ho bronzu a hlin\u00edkov\u00e9ho bronzu<\/a> dod\u00e1vka s certifik\u00e1ty materi\u00e1l\u016f podporuj\u00edc\u00edmi anal\u00fdzu poruchov\u00fdch re\u017eim\u016f p\u0159i reklamac\u00edch \u2013 vy\u017e\u00e1dejte si kontrola re\u017eimu selh\u00e1n\u00ed<\/a> s fotografiemi vadn\u00fdch d\u00edl\u016f a n\u00e1\u0161 t\u00fdm v\u00e1m do jednoho korejsk\u00e9ho pracovn\u00edho dne vr\u00e1t\u00ed p\u00edsemnou diagn\u00f3zu.<\/p>\n

\n

Opakuj\u00edc\u00ed se selh\u00e1n\u00ed na stejn\u00e9m disku?<\/h3>\n

Za\u0161lete 2 a\u017e 3 fotografie vadn\u00fdch zub\u016f \u0161nekov\u00e9ho kola, fotografii p\u0159\u00edpadn\u00e9ho zlomen\u00e9ho povrchu zubu a popis pracovn\u00edho cyklu. Identifikujeme zp\u016fsob poruchy a doporu\u010d\u00edme jak n\u00e1hradn\u00ed d\u00edly, tak i zm\u011bnu aplikace, kter\u00e1 zabr\u00e1n\u00ed opakov\u00e1n\u00ed probl\u00e9mu.<\/p>\n

Po\u0161lete fotografie selh\u00e1n\u00ed \u2192<\/a><\/p>\n<\/div>\n

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

Worm Gear Failure Modes \u2014 Wear, Pitting, and Tooth Breakage A field diagnostic manual. What each failure looks like through the inspection port, what it sounds like at the motor, and what caused it before you replace the worm wheel. Talk to an engineer \u2192 Quick Answer Five failure modes account for almost every worm […]<\/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":[30,33],"class_list":["post-1255","post","type-post","status-publish","format-standard","hentry","category-worm-and-worm-wheel","tag-worm-gear","tag-worm-gear-worm"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1255","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=1255"}],"version-history":[{"count":2,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1255\/revisions"}],"predecessor-version":[{"id":1257,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1255\/revisions\/1257"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/media?parent=1255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/categories?post=1255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/tags?post=1255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}