{"id":1936,"date":"2026-04-09T06:03:53","date_gmt":"2026-04-09T06:03:53","guid":{"rendered":"https:\/\/wormwheelgear.top\/?p=1936"},"modified":"2026-04-09T06:03:53","modified_gmt":"2026-04-09T06:03:53","slug":"worm-gear-drives-for-construction-mining-and-heavy-earthmoving-equipment","status":"publish","type":"post","link":"https:\/\/wormwheelgear.top\/sk\/worm-gear-drives-for-construction-mining-and-heavy-earthmoving-equipment\/","title":{"rendered":"Z\u00e1vitovkov\u00e9 prevodov\u00e9 pohony pre stavebn\u00e9, bansk\u00e9 a \u0165a\u017ek\u00e9 zemn\u00e9 stroje"},"content":{"rendered":"
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Sprievodca aplika\u010dn\u00fdm in\u017einierstvom \u00b7 Stavebn\u00edctvo a ban\u00edctvo<\/p>\n

Z\u00e1vitovkov\u00e9 prevody pre Stavebn\u00edctvo, ban\u00edctvo<\/span> a \u0165a\u017ek\u00e9 zemn\u00e9 stroje<\/h1>\n

Trieda prev\u00e1dzky D3 a D4. R\u00e1zov\u00e9 za\u0165a\u017eenie pri 2,5-3,0x prev\u00e1dzkovom kr\u00fatiacom momente. Prev\u00e1dzkov\u00e1 teplota od -20 \u00b0C do +55 \u00b0C. Krytie IP67 proti vrtn\u00e9mu kalu a prachu z lomu. \u0160pecifik\u00e1cia, ktor\u00e1 odli\u0161uje prevodovku, ktor\u00e1 vydr\u017e\u00ed jednu sez\u00f3nu, od prevodovky, ktor\u00e1 vydr\u017e\u00ed dlh\u0161ie ako stroj.<\/p>\n

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D4<\/div>\n
Maxim\u00e1lna pracovn\u00e1 trieda<\/div>\n<\/div>\n
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3,0x<\/div>\n
Maxim\u00e1lny impakt faktor<\/div>\n<\/div>\n
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IP67<\/div>\n
Tesniaci stupe\u0148<\/div>\n<\/div>\n
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SCM415<\/div>\n
Trieda hriade\u013ea<\/div>\n<\/div>\n<\/div>\n
\u2699 Korea Ever-Power Worm Gear Co., LtdAnsan-si, Gyeonggi-do, Koreasales@wormwheelgear.top<\/div>\n<\/div>\n<\/section>\n
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Porucha zdvih\u00e1ka, ktor\u00e1 nebola chybou prevodov\u00e9ho stup\u0148a \u2013 a pre\u010do to situ\u00e1ciu e\u0161te zhor\u0161uje<\/h2>\n

V roku 2022 sa v k\u00f3rejskej stavebnej spolo\u010dnosti po \u00f4smich mesiacoch prev\u00e1dzky na projekte v\u00fd\u0161kovej budovy v Incheone vyskytlo zlomenie zuba na z\u00e1vitovkovom prevode zdv\u00edhacieho zariadenia materi\u00e1lu. Vy\u0161etrovanie r\u00fdchlo zistilo bezprostredn\u00fa mechanick\u00fa pr\u00ed\u010dinu: materi\u00e1l z\u00e1vitovkov\u00e9ho hriade\u013ea bol induk\u010dne kalen\u00fd C45, nie 40Cr s tvrdos\u0165ou kalenia uvedenou v dokumente o obstar\u00e1van\u00ed. Dod\u00e1vate\u013e bez upozornenia nahradil materi\u00e1ly. Hriade\u013e C45 s tvrdos\u0165ou 48 HRC oproti 40Cr s tvrdos\u0165ou 54 HRC sp\u00f4sobil nedostato\u010dn\u00fd rozdiel tvrdosti v porovnan\u00ed s kolesom z c\u00ednov\u00e9ho bronzu pri r\u00e1zovom za\u0165a\u017een\u00ed 15 \u2013 20 spusten\u00ed denne pri plnom za\u0165a\u017een\u00ed.<\/p>\n

D\u00f4le\u017eitej\u0161\u00edm zisten\u00edm v\u0161ak bola samotn\u00e1 \u0161pecifik\u00e1cia. V dokumentoch o obstar\u00e1van\u00ed bola \u0161pecifikovan\u00e1 trieda D2 pre stredn\u00e9 za\u0165a\u017eenie. Skuto\u010dn\u00fd profil za\u0165a\u017eenia \u2013 sp\u00fa\u0161\u0165anie pri plnom za\u0165a\u017een\u00ed nieko\u013ekokr\u00e1t za smenu, r\u00e1zov\u00e9 za\u0165a\u017eenia pri nakl\u00e1\u0148an\u00ed bet\u00f3nov\u00fdch vedier do kladkostroja, ob\u010dasn\u00e9 pre\u0165a\u017eenie zo zaseknut\u00fdch z\u00e1padiek vedier \u2013 bol minim\u00e1lne trieda D3 pre vysok\u00e9 za\u0165a\u017eenie s faktormi n\u00e1razu dosahuj\u00facimi 2,5-n\u00e1sobok pri n\u00e1razoch vedier. Prevodovka bola \u0161pecifikovan\u00e1 a zak\u00fapen\u00e1 ako D2. Fungovala ako D3. Z\u00e1mena materi\u00e1lu ur\u00fdchlila poruchu, ale spr\u00e1vna \u0161pecifik\u00e1cia D2 na tomto kladkostroji by tie\u017e zlyhala \u2013 len pomal\u0161ie.<\/p>\n

\"aplik\u00e1cia<\/p>\n

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V\u00fdzva v oblasti stavebn\u00fdch a \u0165a\u017eobn\u00fdch \u0161pecifik\u00e1ci\u00ed:<\/strong> Profily za\u0165a\u017eenia v \u0165a\u017ekom priemysle s\u00fa zriedka stabiln\u00e9. Pohon mie\u0161a\u010dky bet\u00f3nu je pri menovitom kr\u00fatiacom momente 40% plynul\u00fd po\u010das 20 min\u00fat, potom pri menovitom kr\u00fatiacom momente 2,8x naraz\u00ed na zaseknutie kamenn\u00e9ho agreg\u00e1tu po\u010das 0,3 sekundy. Bansk\u00fd dopravn\u00edk be\u017e\u00ed pri za\u0165a\u017een\u00ed 65% cel\u00e9 hodiny, potom zaznamen\u00e1 n\u00e1hle n\u00e1rasty za\u0165a\u017eenia, ke\u010f na p\u00e1s spadne kame\u0148. \u0160pecifik\u00e1cia priemern\u00e9ho za\u0165a\u017eenia je nespr\u00e1vny pr\u00edstup. \u0160pecifik\u00e1cia \u0161pi\u010dkov\u00e9ho za\u0165a\u017eenia s vhodn\u00fdm prev\u00e1dzkov\u00fdm faktorom je jedin\u00fd pr\u00edstup, ktor\u00fd zabezpe\u010d\u00ed spo\u013eahliv\u00fa \u017eivotnos\u0165.<\/p>\n<\/div>\n

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P\u00e4\u0165 faktorov, ktor\u00e9 odli\u0161uj\u00fa stavebn\u00fa da\u0148 od priemyselnej dane<\/h2>\n
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N\u00e1razov\u00e9 za\u0165a\u017eenie<\/h4>\n

Stavebn\u00e9 a bansk\u00e9 zariadenia za\u017e\u00edvaj\u00fa n\u00e1hle, vysokoamplit\u00fadov\u00e9 n\u00e1rasty kr\u00fatiaceho momentu v d\u00f4sledku zaseknutia materi\u00e1lu, n\u00e1hleho zastavenia pod z\u00e1\u0165a\u017eou a n\u00e1razov pri vysyp\u00e1van\u00ed. Be\u017en\u00e9 s\u00fa n\u00e1razov\u00e9 faktory 2,0-3,0x prev\u00e1dzkov\u00e9ho kr\u00fatiaceho momentu. Priemyseln\u00e9 dopravn\u00edky zvy\u010dajne dosahuj\u00fa 1,25-1,5x. Tento rozdiel si vy\u017eaduje z\u00e1sadne odli\u0161n\u00fd pr\u00edstup k v\u00fdberu materi\u00e1lu: hlin\u00edkovo-\u017eelezn\u00fd bronz ZCuAl10Fe3 (pevnos\u0165 v \u0165ahu 550 MPa) namiesto c\u00ednov\u00e9ho bronzu ZCuSn10Pb1 (220 MPa) pre aplik\u00e1cie kritick\u00e9 z h\u013eadiska n\u00e1razu.<\/p>\n<\/div>\n

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Extr\u00e9mny teplotn\u00fd rozsah<\/h4>\n

K\u00f3rejsk\u00e9 stavenisk\u00e1 pracuj\u00fa celoro\u010dne: v zime v provincii Gangwon je teplota -15 stup\u0148ov Celzia, v j\u00fali teplota v kryte na stroji vystavenom slnku +40 stup\u0148ov Celzia. Tento 55-stup\u0148ov\u00fd rozptyl je pr\u00edli\u0161 \u0161irok\u00fd na to, aby \u0161tandardn\u00e1 viskozita miner\u00e1lneho oleja udr\u017eala dostato\u010dn\u00fa hr\u00fabku filmu v celom rozsahu. Syntetick\u00fd olej PAO s viskozitn\u00fdm indexom nad 150 je povinn\u00fd pre zariadenia, ktor\u00e9 pracuj\u00fa v chladn\u00fdch zimn\u00fdch podmienkach.<\/p>\n<\/div>\n

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Abraz\u00edvna kontamin\u00e1cia<\/h4>\n

Bet\u00f3nov\u00fd prach, uho\u013en\u00fd prach, horninov\u00e9 \u010dastice a vrtn\u00fd kal s\u00fa v\u0161adepr\u00edtomn\u00e9 na stavenisk\u00e1ch a v \u0165a\u017eobn\u00fdch z\u00e1vodoch. Prenikaj\u00fa cez opotrebovan\u00e9 tesnenia hriade\u013eov, nedostato\u010dn\u00e9 odvzdu\u0161\u0148ovacie filtre a poruchy spojov krytu. Jedin\u00e1 50-mikrometrov\u00e1 horninov\u00e1 \u010dastica cirkuluj\u00faca v z\u00e1bere z\u00e1vitovkov\u00e9ho kolesa sp\u00f4sobuje abraz\u00edvne opotrebenie z\u00e1vitu aj bokov zubov, ktor\u00e9 je r\u00e1dovo r\u00fdchlej\u0161ie ako be\u017en\u00e9 tribologick\u00e9 opotrebenie.<\/p>\n<\/div>\n

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Variabilita pracovn\u00e9ho cyklu<\/h4>\n

Priemyseln\u00e9 v\u00fdrobn\u00e9 pohony zvy\u010dajne pracuj\u00fa s kon\u0161tantn\u00fdm za\u0165a\u017een\u00edm. Stavebn\u00e9 zariadenia s\u00fa vo svojej podstate premenliv\u00e9: \u017eeriavov\u00fd kladkostroj je nieko\u013eko min\u00fat ne\u010dinn\u00fd, potom zdvihne maxim\u00e1lne bremeno a potom op\u00e4\u0165 ne\u010dinn\u00fd. Toto preru\u0161ovan\u00e9 za\u0165a\u017eenie znamen\u00e1, \u017ee tepeln\u00e1 rovnov\u00e1ha sa zriedkakedy dosiahne, ale ozuben\u00e9 koleso za\u017e\u00edva \u00famerne viac cyklov vysok\u00e9ho za\u0165a\u017eenia, ako nazna\u010duje priemern\u00e1 hodnota za\u0165a\u017eenia.<\/p>\n<\/div>\n

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Po\u017eiadavky na dokument\u00e1ciu<\/h4>\n

Stavebn\u00e9 v\u00fd\u0165ahy a zdv\u00edhacie zariadenia v K\u00f3rei vy\u017eaduj\u00fa s\u00falad so z\u00e1konom o bezpe\u010dnosti a ochrane zdravia pri pr\u00e1ci a s\u00favisiacimi KCS (k\u00f3rejsk\u00fdmi stavebn\u00fdmi normami). Pre ak\u00fdko\u013evek prevodov\u00fd pohon v zdv\u00edhacej aplik\u00e1cii s person\u00e1lnou z\u00f3nou pod n\u00edm nie je zdokumentovan\u00e9 overenie samosvornosti a certifik\u00e1cia materi\u00e1lu volite\u013en\u00e9 \u2013 s\u00fa z\u00e1kladom pre certifik\u00e1ciu bezpe\u010dnosti stroja.<\/p>\n<\/div>\n<\/div>\n

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Trieda za\u0165a\u017eenia D3 a D4 \u2013 \u010do sa v skuto\u010dnosti men\u00ed so \u0161pecifik\u00e1ciou<\/h2>\n

Prechod z triedy D2 pre stredn\u00e9 za\u0165a\u017eenie na kateg\u00f3riu D3 pre vysok\u00e9 za\u0165a\u017eenie nie je len zv\u00fd\u0161en\u00edm prev\u00e1dzkov\u00e9ho faktora. Men\u00ed po\u017eadovan\u00fd materi\u00e1l hriade\u013ea, zliatinu kolesa, \u0161pecifik\u00e1ciu tepeln\u00e9ho spracovania a po\u017eiadavku na overenie h\u013abky puzdra. Ka\u017ed\u00e1 zmena sa zaober\u00e1 \u0161pecifick\u00fdm re\u017eimom poruchy, pred ktor\u00fdm \u0161pecifik\u00e1cia D2 nechr\u00e1ni.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter \u0161pecifik\u00e1cie<\/th>\nD2 Stredn\u00e1 z\u00e1\u0165a\u017e<\/th>\nD3 Vysok\u00e9 za\u0165a\u017eenie<\/th>\nD4 \u0164a\u017ek\u00e1 prev\u00e1dzka<\/th>\n<\/tr>\n<\/thead>\n
Faktor za\u0165a\u017eenia<\/td>\n40-70% menovit\u00e9ho<\/td>\n70-90% menovit\u00e9ho<\/td>\n90-100% kontinu\u00e1lny<\/td>\n<\/tr>\n
Maxim\u00e1lny impakt faktor<\/td>\n1.50<\/td>\n2.0<\/td>\n3.0<\/td>\n<\/tr>\n
Materi\u00e1l z\u00e1vitovkov\u00e9ho hriade\u013ea<\/td>\n40Cr kalen\u00e9<\/td>\nSCM415 cementovan\u00fd<\/td>\nSCM415 alebo 42CrMo cementovan\u00e9<\/td>\n<\/tr>\n
Tvrdos\u0165 povrchu hriade\u013ea<\/td>\n50-56 HRC<\/td>\n58-62 HRC<\/td>\n58-62 HRC + overen\u00e1 h\u013abka puzdra<\/td>\n<\/tr>\n
H\u013abka puzdra pri kore\u0148ovom zaoblen\u00ed<\/td>\nN\/A \u2013 prekalen\u00e9<\/td>\nMin. 0,8 mm (overen\u00e9 Vickersov\u00fdm testom)<\/td>\nMin. 1,0 mm (zdokumentovan\u00e9 v certifik\u00e1te)<\/td>\n<\/tr>\n
Hlin\u00edkov\u00e9 disky kolies<\/td>\nc\u00ednov\u00fd bronz ZCuSn10Pb1<\/td>\nZCuAl10Fe3 hlin\u00edkovo-\u017eelezn\u00fd bronz<\/td>\nN\u00e1boj ZCuAl10Fe3 + GGG40 (ve\u013ek\u00fd modul)<\/td>\n<\/tr>\n
Pevnos\u0165 v \u0165ahu kolesa<\/td>\n~220 MPa<\/td>\n~550 MPa<\/td>\n~550 MPa + overen\u00e9 ohybenie n\u00e1boja<\/td>\n<\/tr>\n
\u0160tandardn\u00fd priemer otvoru<\/td>\nNorma H7\/n6<\/td>\nH7\/p6 (interferencia)<\/td>\nH7\/p6 s \u00fapln\u00fdm v\u00fdpo\u010dtom interferencie<\/td>\n<\/tr>\n
\u0160pecifik\u00e1cia tesnenia<\/td>\nTesnenie na pero NBR, IP54+<\/td>\nTesnenie FKM, minim\u00e1lne IP65<\/td>\nFKM dvojbrinov\u00e1, minim\u00e1lne IP67<\/td>\n<\/tr>\n
Teplotn\u00fd rozsah<\/td>\nkryt s teplotou od 0 do +80 stup\u0148ov Celzia<\/td>\nMiner\u00e1lne alebo PAO na teplotu.<\/td>\nPovinn\u00e9 syntetick\u00e9 PAO<\/td>\n<\/tr>\n
Samouzamykate\u013en\u00e1 dokument\u00e1cia<\/td>\nIba \u0161tandardn\u00fd s\u00faradnicov\u00fd merac\u00ed pr\u00edstroj (CMM)<\/td>\nSamoblokovac\u00ed v\u00fdpo\u010det poskytnut\u00fd<\/td>\nKompletn\u00fd bal\u00edk bezpe\u010dnostnej dokument\u00e1cie<\/td>\n<\/tr>\n
Dokument\u00e1cia spolo\u010dnosti Korea Ever-Power<\/td>\nCertifik\u00e1t materi\u00e1lu + s\u00faradnicov\u00fd merac\u00ed stroj<\/td>\nCertifik\u00e1t materi\u00e1lu + CMM + z\u00e1znam o h\u013abke pr\u00edpadu<\/td>\nKompletn\u00fd in\u017einiersky bal\u00edk<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Stavebn\u00e9 a bansk\u00e9 aplik\u00e1cie \u2013 \u0160pecifick\u00e9 po\u017eiadavky na prevodovky<\/h2>\n
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\ud83c\udfd7<\/div>\n

Pohon bubna mie\u0161a\u010dky bet\u00f3nu<\/h4>\n

Nepretr\u017eit\u00e1 rot\u00e1cia, abraz\u00edvne prostredie. Bet\u00f3n prenik\u00e1 cez ak\u00e9ko\u013evek nedostato\u010dn\u00e9 tesnenie. Materi\u00e1l: D2-D3, hriade\u013e 40Cr, koleso ZCuSn10Pb1 alebo ZCuAl10Fe3. Minim\u00e1lne IP65. Prev\u00e1dzkov\u00fd faktor 1,75 pre ob\u010dasn\u00e9 zaseknutie kameniva.<\/p>\n<\/div>\n

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\ud83c\udfed<\/div>\n

Materi\u00e1lov\u00fd v\u00fd\u0165ah (osobn\u00e1 z\u00f3na ni\u017e\u0161ie)<\/h4>\n

Samosvorn\u00e9 uz\u00e1very s\u00fa povinn\u00e9 s bezpe\u010dnostnou dokument\u00e1ciou. Minim\u00e1lne D3. Hriade\u013e SCM415, z\u00e1vitovka s jedn\u00fdm chodom. Samosvorn\u00e9 uz\u00e1very overen\u00e9 pri -10 \u00b0C (zimn\u00e1 prev\u00e1dzkov\u00e1 teplota) so \u0161pecifikovan\u00fdm olejom. Spolo\u010dnos\u0165 Korea Ever-Power poskytuje kompletn\u00fd bal\u00edk dokument\u00e1cie o samosvorn\u00fdch uz\u00e1veroch pre s\u00falad s KCS.<\/p>\n<\/div>\n

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\u26cf<\/div>\n

Rohov\u00fd pohon dopravn\u00edka na \u0165a\u017eobn\u00fa rudu<\/h4>\n

Prev\u00e1dzkov\u00e1 doba D3-D4, faktor za\u0165a\u017eenia 70-100%. Koleso ZCuAl10Fe3 je nevyhnutn\u00e9 pre n\u00e1razy sp\u00f4soben\u00e9 r\u00e1zov\u00fdm za\u0165a\u017een\u00edm rudy. Krytie IP67 pre \u0165a\u017ebu pod povrchom. Uho\u013en\u00fd prach: filtrovan\u00fd odvzdu\u0161\u0148ova\u010d a pretlakov\u00e9 puzdro alebo utesnen\u00e9 prevedenie na cel\u00fa dobu \u017eivotnosti.<\/p>\n<\/div>\n

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\ud83d\ude97<\/div>\n

Zariadenia na pokl\u00e1dku a zhut\u0148ovanie ciest<\/h4>\n

Nepretr\u017eit\u00e9 vibr\u00e1cie motora, zhut\u0148ova\u010da a povrchu vozovky. Vibr\u00e1cie ur\u00fdch\u013euj\u00fa trenie v spojoch telesa a na rozhraniach otvorov. Pre otvor \u0161pecifikujte presn\u00e9 ulo\u017eenie H7\/p6. Skontrolujte kompatibilitu tesniaceho materi\u00e1lu v spojoch telesa s vibra\u010dn\u00fdm prostred\u00edm.<\/p>\n<\/div>\n

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\ud83c\udfe0<\/div>\n

Zariadenia na v\u0155tanie a razenie tunelov<\/h4>\n

Tesnenie pod hladinou podzemnej vody: minim\u00e1lne IP68. Teplotn\u00e1 stabilita: vrtn\u00e9 zariadenie generuje teplo. PAO ISO VG 460 nevyhnutn\u00fd. \u0160achta z nehrdzavej\u00facej ocele pre mokr\u00e9 tunelovacie prostredie.<\/p>\n<\/div>\n

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\u26dd<\/div>\n

Ot\u00e1\u010danie a polohovanie \u017eeriavu<\/h4>\n

Preru\u0161ovan\u00e1 prev\u00e1dzka, vysok\u00fd rozbehov\u00fd kr\u00fatiaci moment. \u0160pecifik\u00e1cia D3 pre z\u00e1vitovkov\u00fd prevod s oto\u010dn\u00fdm vencom. Momentov\u00e9 za\u0165a\u017eenie od mimostredov\u00fdch za\u0165a\u017een\u00ed \u017eeriavom vytv\u00e1ra kombinovan\u00e9 radi\u00e1lne a axi\u00e1lne nap\u00e4tie na z\u00e1vitovkovom hriadeli. Overte v\u00fdber lo\u017eiska pre kombinovan\u00e9 za\u0165a\u017eenie.<\/p>\n<\/div>\n<\/div>\n

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V\u00fdroba prevodov\u00fdch s\u00faprav D3 a D4 v spolo\u010dnosti Korea Ever-Power<\/h2>\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
\"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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\u0164a\u017ek\u00e9 ter\u00e9nne in\u017einierstvo<\/p>\n

\u0160tyri pr\u00edpady z\u00e1vitovkov\u00fdch prevodov v stavebn\u00edctve a ban\u00edctve \u2013 \u0161pecifik\u00e1cia, porucha a rie\u0161enie<\/h2>\n<\/div>\n
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In\u010dchon, K\u00f3rea \/ Stavenisko<\/div>\n
Materi\u00e1lov\u00fd zdvih\u00e1k \u2014 \u0160pecifik\u00e1cia D2 pre aplik\u00e1ciu D3<\/div>\n

Situ\u00e1cia:<\/strong> V\u00fd\u0161kov\u00fd stavebn\u00fd projekt v In\u010dchone pou\u017e\u00edval z\u00e1vitovkov\u00fd materi\u00e1lov\u00fd zdvih\u00e1k \u0161pecifikovan\u00fd pod\u013ea normy D2 (stredn\u00e9 za\u0165a\u017eenie). Skuto\u010dn\u00fd profil za\u0165a\u017eenia zah\u0155\u0148al 15 \u2013 20 spusten\u00ed na cyklus za\u0165a\u017eenia pri plnom za\u0165a\u017een\u00ed, ob\u010dasn\u00e9 n\u00e1razy od v\u00fdkyvov bet\u00f3novej ly\u017eice a prev\u00e1dzku pri teplote -8 stup\u0148ov Celzia v janu\u00e1ri. Bezprostrednou pr\u00ed\u010dinou bolo zlyhanie materi\u00e1lu hriade\u013ea C45, ale \u0161pecifik\u00e1cia D2 nebola dostato\u010dn\u00e1 pre prev\u00e1dzkov\u00e9 podmienky D3 bez oh\u013eadu na materi\u00e1l hriade\u013ea.<\/p>\n

Rozl\u00ed\u0161enie:<\/strong> Kompletn\u00e1 aktualiz\u00e1cia \u0161pecifik\u00e1ci\u00ed: cementovan\u00fd hriade\u013e SCM415 (58-62 HRC, h\u013abka puzdra 0,9 mm overen\u00e1 v mieste kore\u0148ov\u00e9ho zaoblenia), koleso ZCuAl10Fe3 (pevnos\u0165 v \u0165ahu 550 MPa oproti p\u00f4vodn\u00fdm 220 MPa), PAO ISO VG 460 (viskozita pri studenom \u0161tarte primeran\u00e1 pri -15 \u00b0C), tesnenia FKM IP65, ovl\u00e1da\u010d motora s m\u00e4kk\u00fdm \u0161tartom na obmedzenie \u0161tartovacieho kr\u00fatiaceho momentu na 1,4-n\u00e1sobok menovit\u00e9ho. Kompletn\u00fd bal\u00edk dokument\u00e1cie o samosvornosti pre dokument\u00e1ciu o bezpe\u010dnosti na mieste.<\/p>\n

\u2713 \u017diadne poruchy po\u010das 22 mesiacov n\u00e1slednej prev\u00e1dzky \/ bezpe\u010dnostn\u00e1 dokument\u00e1cia KCS akceptovan\u00e1<\/div>\n<\/div>\n
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Gyeonggi-do, K\u00f3rea \/ Beton\u00e1re\u0148<\/div>\n
Pohon mie\u0161acieho bubna \u2013 abraz\u00edvne prenikanie bet\u00f3nu<\/div>\n

Situ\u00e1cia:<\/strong> Beton\u00e1re\u0148 na transportbet\u00f3n menila z\u00e1vitovkov\u00e9 prevody na pohonoch bubnov mie\u0161a\u010diek ka\u017ed\u00fdch 9 a\u017e 11 mesiacov. Kontrola chybn\u00fdch pohonov uk\u00e1zala v\u00e1\u017ene abraz\u00edvne opotrebenie \u2013 boky z\u00e1vitu hriade\u013ea aj \u010deln\u00e9 plochy zubov kolesa boli v smere k\u013azania poriadne poryt\u00e9 jemn\u00fdmi rovnobe\u017en\u00fdmi \u0161krabancami. Anal\u00fdza oleja potvrdila kontamin\u00e1ciu oxidom kremi\u010dit\u00fdm na \u00farovni 1 200 ppm. Tesnenia hriade\u013ea telesa boli \u0161tandardn\u00e9 NBR \u2013 nedostato\u010dn\u00e9 na nepretr\u017eit\u00e9 vystavenie bet\u00f3novej ka\u0161i.<\/p>\n

Rozl\u00ed\u0161enie:<\/strong> Dvojbritov\u00e9 tesnenia hriade\u013ea z FKM s bet\u00f3nov\u00fdm stiera\u010dom na v\u00fdstupe z hriade\u013ea. Teleso op\u00e4tovne utesnen\u00e9 silik\u00f3novou tesniacou zmesou (kompatibilnou s alkalinitou bet\u00f3nu). Do pl\u00e1nu \u00fadr\u017eby bola pridan\u00e1 \u0161tvr\u0165ro\u010dn\u00e1 kontrola tesnenia. Pridan\u00e1 magnetick\u00e1 vyp\u00fa\u0161\u0165acia z\u00e1tka s mesa\u010dnou vizu\u00e1lnou kontrolou. Ozuben\u00e9 koleso pohonu mie\u0161adla inak zodpoved\u00e1 \u0161pecifik\u00e1cii D2 \u2013 pr\u00ed\u010dinou poruchy bola kontamin\u00e1cia, nie nedostato\u010dn\u00e1 \u0161pecifik\u00e1cia prev\u00e1dzkovej triedy.<\/p>\n

\u2713 V\u00fdmena tesnenia pred\u013a\u017eila \u017eivotnos\u0165 pohonu z 10 mesiacov na viac ako 30 mesiacov<\/div>\n<\/div>\n
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Gangwon-do, K\u00f3rea \/ Povrchov\u00e1 \u0165a\u017eba<\/div>\n
Dopravn\u00edk na prepravu rudy \u2013 kombin\u00e1cia extr\u00e9mneho chladu a prachu<\/div>\n

Situ\u00e1cia:<\/strong> Rohov\u00e9 pohony dopravn\u00edka na prekl\u00e1dku rudy v povrchovej bani Gangwon mali dva sez\u00f3nne probl\u00e9my: nadpr\u00fad motora pri \u0161tarte v janu\u00e1ri (-18 stup\u0148ov Celzia) a zr\u00fdchlen\u00e9 opotrebovanie v lete v d\u00f4sledku vnikania uho\u013en\u00e9ho prachu cez nedostato\u010dn\u00e9 odvzdu\u0161\u0148ovacie otvory. Oba probl\u00e9my boli sp\u00f4soben\u00e9 \u0161pecifik\u00e1ciou maziva: miner\u00e1l ISO VG 460 (pr\u00edli\u0161 visk\u00f3zny pri -18 stup\u0148och Celzia na studen\u00fd \u0161tart) a neutesnen\u00e9 kryty nas\u00e1vaj\u00face uho\u013en\u00fd prach cez odvzdu\u0161\u0148ovac\u00ed otvor.<\/p>\n

Rozl\u00ed\u0161enie:<\/strong> Syntetick\u00fd PAO ISO VG 220 (bod tuhnutia -40 \u00b0C, primeran\u00e1 viskozita pri -18 \u00b0C pre norm\u00e1lny \u0161tart motora). Utesnen\u00e9 puzdro s 10-mikrometrov\u00fdmi filtrovan\u00fdmi odvzdu\u0161\u0148ovac\u00edmi otvormi. Hriade\u013eov\u00e9 tesnenia FKM namiesto origin\u00e1lnych NBR. \u0160pecifik\u00e1cia D3 (hriade\u013e SCM415 + koleso ZCuAl10Fe3) pre r\u00e1zov\u00e9 za\u0165a\u017eenie dopravn\u00edka n\u00e1razom rudy.<\/p>\n

\u2713 Eliminovan\u00fd nadpr\u00fad pri studenom \u0161tarte \/ Eliminovan\u00e9 poruchy kontamin\u00e1cie prachom \/ \u017diadna v\u00fdmena po\u010das 28 mesiacov<\/div>\n<\/div>\n
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Soul, K\u00f3rea \/ V\u00fdstavba mestsk\u00e9ho tunela<\/div>\n
V\u0155tanie tunelov \u2013 IP68 pod hladinou podzemnej vody<\/div>\n

Situ\u00e1cia:<\/strong> V\u00fdstavba mestsk\u00e9ho tunela pod riekou Han vy\u017eadovala z\u00e1vitovkov\u00e9 prevodov\u00e9 pohony na pomocn\u00fdch zariadeniach na razenie tunelov, ktor\u00e9 pracovali v plne nas\u00fdtenom p\u00f4dnom prostred\u00ed. Pohony zaznamenali vniknutie vody v priebehu nieko\u013ek\u00fdch t\u00fd\u017ed\u0148ov od in\u0161tal\u00e1cie \u2013 \u0161tandardn\u00e1 \u0161pecifik\u00e1cia IP65 nebola dostato\u010dn\u00e1 pre skuto\u010dn\u00e9 prev\u00e1dzkov\u00e9 podmienky: ob\u010dasn\u00e9 ponorenie do rie\u010dneho kalu a podzemnej vody.<\/p>\n

Rozl\u00ed\u0161enie:<\/strong> \u0160pecifik\u00e1cia IP68: dvojbritov\u00e9 tesnenia hriade\u013ea FKM s dodato\u010dn\u00fdm labyrintov\u00fdm tesnen\u00edm, spoje telesa utesnen\u00e9 dvojzlo\u017ekovou epoxidovou tesniacou zmesou (nie anaer\u00f3bnou \u2013 anaer\u00f3bne zl\u00fa\u010deniny str\u00e1caj\u00fa pri\u013enavos\u0165 pri dlh\u0161om ponoren\u00ed), PAO ISO VG 460 s bal\u00edkom inhib\u00edtorov kor\u00f3zie. Hriade\u013e SS316 pre v\u0161etky pohony v saturovanej z\u00f3ne. Pl\u00e1novan\u00e1 \u0161tvr\u0165ro\u010dn\u00e1 kontrola telesa a v\u00fdmena tesnenia.<\/p>\n

\u2713 Dosiahnut\u00e9 splnenie krit\u00e9ri\u00ed IP68 \/ Nulov\u00fd prienik vody po\u010das 18-mesa\u010dn\u00e9ho obdobia razenia tunela<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
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\n
\n

K\u00f3rea Ever-Power<\/span><\/p>\n

Produkty pre z\u00e1vitovkov\u00e9 prevody D3 a D4 pre vysok\u00e9 za\u0165a\u017eenie<\/h2>\n<\/div>\n
\n
\n
\"Sada<\/div>\n
\n
D3 Vysokov\u00fdkonn\u00fd \/ SCM415 \/ ZCuAl10Fe3<\/div>\n
Sada z\u00e1vitovkov\u00fdch prevodov z legovanej ocele pre vysok\u00e9 za\u0165a\u017eenie \u2013 \u0161pecifik\u00e1cia D3<\/div>\n
\u0160pecifik\u00e1cia D3 pre \u0165a\u017ek\u00e9 stavebn\u00e9, bansk\u00e9 a \u0165a\u017ek\u00e9 zemn\u00e9 stroje: cementovan\u00fd a br\u00fasen\u00fd z\u00e1vitovkov\u00fd hriade\u013e SCM415 dosahuj\u00faci tvrdos\u0165 povrchu 58-62 HRC s overenou h\u013abkou puzdra minim\u00e1lne 0,8 mm v mieste kore\u0148ov\u00e9ho zaoblenia. Overenie h\u013abky puzdra pomocou Vickersovho traverzu tvrdosti je zdokumentovan\u00e9 v z\u00e1zname o h\u013abke puzdra dodania \u2013 nepreber\u00e1 sa zo \u0161pecifik\u00e1cie procesu. Zodpovedaj\u00face z\u00e1vitovkov\u00e9 koleso ZCuAl10Fe3 z hlin\u00edkovo-\u017eelezn\u00e9ho bronzu poskytuje pevnos\u0165 v \u0165ahu 550 MPa a tvrdos\u0165 140-180 HB, \u010do mu d\u00e1va 2,5-n\u00e1sobok odolnosti vo\u010di r\u00e1zov\u00e9mu za\u0165a\u017eeniu oproti \u0161tandardn\u00e9mu c\u00ednov\u00e9mu bronzu ZCuSn10Pb1. \u0160pecifik\u00e1cia ulo\u017eenia s presnos\u0165ou otvoru H7\/p6 je vypo\u010d\u00edtan\u00e1 pre \u0161pecifikovan\u00fd priemer hriade\u013ea a po\u017eiadavku na prenos kr\u00fatiaceho momentu \u2013 poskytuje vy\u0161\u0161iu kr\u00fatiacu kapacitu ako ulo\u017eenia H7\/n6 pou\u017eit\u00e9 na s\u00faprav\u00e1ch D2. Dodacia dokument\u00e1cia: certifik\u00e1t materi\u00e1lu pod\u013ea \u010d\u00edsla tavenia valcovania (obe komponenty), z\u00e1znam o tepelnom spracovan\u00ed s profilom \u010das-teplota, z\u00e1znam o h\u013abke puzdra, spr\u00e1va o rozmerovej kontrole CMM. K dispoz\u00edcii je \u0161pecifik\u00e1cia tesnenia FKM pre kompatibilitu s kryt\u00edm IP65 a IP67. Pre v\u0161etky konfigur\u00e1cie z\u00e1vitovkov\u00fdch syst\u00e9mov s jedn\u00fdm chodom objednan\u00e9 pre zdv\u00edhacie aplik\u00e1cie je poskytnut\u00fd v\u00fdpo\u010det samosvornosti \u2013 naform\u00e1tovan\u00fd na zahrnutie do bal\u00edka bezpe\u010dnostnej dokument\u00e1cie stroja.<\/div>\n

Zobrazi\u0165\/Vy\u017eiada\u0165 \u0161pecifik\u00e1ciu D3-D4<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Z\u00e1vitovkov\u00e9<\/div>\n
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Al-\u017delezo Bronz \/ D3-D4 Impact<\/div>\n
Z\u00e1vitovkov\u00e9 koleso ZCuAl10Fe3 z hlin\u00edkovo-\u017eelezn\u00e9ho bronzu \u2013 r\u00e1zov\u00e1 trieda<\/div>\n
Ke\u010f profil za\u0165a\u017eenia aplik\u00e1cie zah\u0155\u0148a n\u00e1razov\u00e9 udalosti \u2013 v\u00fdkyvy bet\u00f3novej ly\u017eice, n\u00e1razy rudn\u00e9ho bloku na dopravn\u00e9 p\u00e1sy, n\u00e1hle p\u00f4sobenie za\u0165a\u017eenia \u017eeriavom \u2013 zliatina z\u00e1vitovkov\u00e9ho kolesa je kritick\u00fdm parametrom \u0161pecifik\u00e1cie. Hlin\u00edkovo-\u017eelezn\u00fd bronz ZCuAl10Fe3 dosahuje pevnos\u0165 v \u0165ahu 550 MPa oproti 220 MPa pre c\u00ednov\u00fd bronz ZCuSn10Pb1: 2,5-n\u00e1sobn\u00e9 zlep\u0161enie pevnosti v \u0165ahu, ktor\u00e9 sa priamo premieta do odolnosti proti n\u00e1razu. Koleso z hlin\u00edkovo-\u017eelezn\u00e9ho bronzu neposkytuje v\u00fdhodu hrani\u010dn\u00e9ho mazania, ktor\u00fa m\u00e1 olovnat\u00e1 f\u00e1za v c\u00ednovom bronze \u2013 to je kompenzovan\u00e9 \u0161pecifikovan\u00edm tvrd\u0161ieho cementovan\u00e9ho hriade\u013ea SCM415, ktor\u00fd v\u010faka vy\u0161\u0161ej povrchovej tvrdosti poskytuje v\u00e4\u010d\u0161iu odolnos\u0165 proti oderu. Koleso z hlin\u00edkovo-\u017eelezn\u00e9ho bronzu je dostupn\u00e9 v rovnakom rozsahu otvorov, modulov a po\u010dtu zubov ako \u0161tandardn\u00e9 koleso z c\u00ednov\u00e9ho bronzu, \u010do umo\u017e\u0148uje priamu n\u00e1hradu v existuj\u00facich krytoch pri moderniz\u00e1cii in\u0161tal\u00e1cie D2 na \u0161pecifik\u00e1ciu D3. Materi\u00e1lov\u00fd certifik\u00e1t potvrdzuj\u00faci percentu\u00e1lne zlo\u017eenie Al, Fe a Cu je s\u00fa\u010das\u0165ou ka\u017edej dod\u00e1vky.<\/div>\n

Zobrazi\u0165\/Vy\u017eiada\u0165 \u0161pecifik\u00e1ciu D3-D4<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Sada<\/div>\n
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D3-D4 \/ \u00dapln\u00e1 bezpe\u010dnostn\u00e1 dokument\u00e1cia<\/div>\n
Sada D3 pre vysok\u00e9 za\u0165a\u017eenie s bal\u00edkom dokument\u00e1cie o stavebnej bezpe\u010dnosti<\/div>\n
Pre z\u00e1vitovkov\u00e9 prevody in\u0161talovan\u00e9 v stavebn\u00fdch zdv\u00edhac\u00edch zariadeniach, bansk\u00fdch zdv\u00edhac\u00edch syst\u00e9moch a ak\u00fdchko\u013evek aplik\u00e1ci\u00e1ch, kde pohon podlieha kontrole bezpe\u010dnosti kon\u0161trukcie alebo certifik\u00e1cii CE stroja, poskytuje spolo\u010dnos\u0165 Korea Ever-Power roz\u0161\u00edren\u00fd bal\u00edk dokument\u00e1cie \u0161peci\u00e1lne \u0161trukt\u00farovan\u00fd z h\u013eadiska s\u00faladu s bezpe\u010dnos\u0165ou. Bal\u00edk obsahuje: certifik\u00e1ty materi\u00e1lu pre \u010d\u00edslo tavenia fr\u00e9zovania s \u00fadajmi o zlo\u017een\u00ed oboch komponentov; z\u00e1znam o procese tepeln\u00e9ho spracovania pre cementovan\u00fd hriade\u013e (\u010das, teplota, kalenie, pop\u00fa\u0161\u0165anie); z\u00e1znam o overen\u00ed h\u013abky puzdra pomocou Vickersovho traverzu v mieste kore\u0148ov\u00e9ho zaoblenia; spr\u00e1vu o rozmerovej kontrole CMM; a v\u00fdpo\u010det overenia samosvornosti pri \u0161pecifikovanom rozsahu prev\u00e1dzkov\u00fdch tepl\u00f4t (minim\u00e1lna zimn\u00e1 teplota a maxim\u00e1lna letn\u00e1 teplota) so \u0161pecifikovan\u00fdm mazivom. V\u00fdpo\u010det samosvornosti pou\u017e\u00edva model koeficientu trenia ISO pri uveden\u00fdch podmienkach teploty a viskozity a vypo\u010d\u00edtava bezpe\u010dnostn\u00fa rezervu (\u03c1 prime m\u00ednus lambda) pri oboch teplotn\u00fdch extr\u00e9moch. Tento v\u00fdpo\u010det je form\u00e1tovan\u00fd na priame predlo\u017eenie org\u00e1nom pre certifik\u00e1ciu bezpe\u010dnosti kon\u0161trukcie.<\/div>\n

Zobrazi\u0165\/Vy\u017eiada\u0165 \u0161pecifik\u00e1ciu D3-D4<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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\u010casto kladen\u00e9 ot\u00e1zky o \u0165a\u017ek\u00fdch vozidl\u00e1ch<\/span><\/p>\n

Z\u00e1vitovkov\u00e9 prevody v stavebn\u00edctve a bani \u2013 ot\u00e1zky od stavebn\u00fdch in\u017einierov a mana\u017e\u00e9rov zariaden\u00ed<\/h2>\n<\/div>\n
\nAk\u00e1 je minim\u00e1lna \u0161pecifik\u00e1cia z\u00e1vitovkov\u00e9ho prevodu pre materi\u00e1lov\u00fd v\u00fd\u0165ah s pracovnou z\u00f3nou pod n\u00edm?+<\/span><\/summary>\n
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Pre ak\u00fako\u013evek aplik\u00e1ciu zdv\u00edhacieho zariadenia s person\u00e1lnou z\u00f3nou pod \u0148ou \u2013 alebo ak\u00fako\u013evek z\u00f3nu, ktor\u00fa by dosiahlo padaj\u00face bremeno \u2013 je minim\u00e1lna \u0161pecifik\u00e1cia D3 s \u00faplnou dokument\u00e1ciou samosvoru. To znamen\u00e1: jednochod\u00fd z\u00e1vitovkov\u00fd mechanizmus (z1=1) s pomerom minim\u00e1lne 20:1, najlep\u0161ie 30:1 alebo vy\u0161\u0161\u00edm; cementovan\u00fd hriade\u013e SCM415; v\u00fdpo\u010det samosvoru pri minim\u00e1lnej o\u010dak\u00e1vanej prev\u00e1dzkovej teplote so \u0161pecifikovan\u00fdm mazivom; a dokument\u00e1ciu o bezpe\u010dnostnej rezerve samosvoru (uhol trenia m\u00ednus uhol n\u00e1behu, minim\u00e1lne 1,5 stup\u0148a). V K\u00f3rei vy\u017eaduj\u00fa materi\u00e1lov\u00e9 zdv\u00edhacie zariadenia na stavenisk\u00e1ch s\u00falad s predpismi z\u00e1kona o bezpe\u010dnosti a ochrane zdravia pri pr\u00e1ci (OSHA) pod\u013ea Ministerstva pr\u00e1ce a zamestnanosti, ktor\u00e9 zah\u0155\u0148aj\u00fa po\u017eiadavky na dokument\u00e1ciu o nosnosti mechanick\u00fdch komponentov zdv\u00edhac\u00edch zariaden\u00ed.<\/p>\n<\/div>\n<\/details>\n

\nM\u00f4\u017eem pou\u017ei\u0165 kot\u00fa\u010d z c\u00ednu ZCuSn10Pb1 s hriade\u013eom SCM415 na stavebn\u00e9 \u00fa\u010dely alebo mus\u00edm pou\u017ei\u0165 ZCuAl10Fe3?+<\/span><\/summary>\n
\n

Spr\u00e1vna zliatina kolesa z\u00e1vis\u00ed od konkr\u00e9tneho rizika poruchy vo va\u0161ej aplik\u00e1cii. Pre aplik\u00e1cie s vysok\u00fdm r\u00e1zov\u00fdm za\u0165a\u017een\u00edm \u2013 pohony zdv\u00edhac\u00edch zariaden\u00ed, ot\u00e1\u010danie \u017eeriavov, n\u00e1razov\u00e9 dopravn\u00edky na rudu \u2013 sa d\u00f4razne odpor\u00fa\u010da ZCuAl10Fe3, preto\u017ee jeho pevnos\u0165 v \u0165ahu 550 MPa odol\u00e1va r\u00e1zov\u00e9mu ohybov\u00e9mu nam\u00e1haniu v kore\u0148ovej \u010dasti zuba, ktor\u00e9 iniciuje lom v c\u00ednovom bronze. Pre aplik\u00e1cie so stredn\u00fdm za\u0165a\u017een\u00edm, ale s abraz\u00edvnym zne\u010disten\u00edm ako prim\u00e1rnym rizikom \u2013 pohony mie\u0161a\u010diek, pohony ner\u00e1zov\u00fdch dopravn\u00edkov \u2013 je c\u00ednov\u00fd bronz ZCuSn10Pb1 prijate\u013en\u00fd s hriade\u013eom SCM415 a jeho v\u00fdhoda mazania na hranici f\u00e1zy olovnatosti poskytuje lep\u0161iu ochranu pred kr\u00e1tkodob\u00fdmi udalos\u0165ami such\u00e9ho kontaktu po\u010das abraz\u00edvneho opotrebenia ako hlin\u00edkovo-\u017eelezn\u00fd bronz. Ak je prim\u00e1rnym rizikom r\u00e1zov\u00e9 za\u0165a\u017eenie, uve\u010fte ZCuSn10Pb1, ak je prim\u00e1rnym rizikom abraz\u00edvne opotrebenie pri strednom za\u0165a\u017een\u00ed.<\/p>\n<\/div>\n<\/details>\n

\nZ\u00e1vitovkov\u00fd prevod pohonu mie\u0161a\u010dky bet\u00f3nu sa vymie\u0148a ka\u017ed\u00fdch 9 mesiacov. \u010co pravdepodobne sp\u00f4sobuje pred\u010dasn\u00e9 opotrebovanie?+<\/span><\/summary>\n
\n

Najpravdepodobnej\u0161\u00edmi pr\u00ed\u010dinami s\u00fa bet\u00f3nov\u00fd prach a kal. Bet\u00f3n je alkalick\u00fd (pH 12-13 v \u010derstvom stave) a vysoko abraz\u00edvny (kremi\u010dit\u00fd agreg\u00e1t, cementov\u00fd slinok). Ak\u00e1ko\u013evek cesta, ktorou sa bet\u00f3n dostane do prevodovej skrine \u2013 nedostato\u010dn\u00e9 tesnenie hriade\u013ea, otvoren\u00fd odvzdu\u0161\u0148ovac\u00ed otvor, spoj skrine \u2013 kontaminuje mazivo v priebehu nieko\u013ek\u00fdch hod\u00edn. Oxid kremi\u010dit\u00fd s koncentr\u00e1ciou viac ako 500 ppm v oleji vytv\u00e1ra trojzlo\u017ekov\u00fa abraz\u00edvnu pastu, ktor\u00e1 neust\u00e1le opotrebov\u00e1va z\u00e1vit hriade\u013ea aj boky zubov kolesa. N\u00e1prava: dvojbrusov\u00e9 tesnenia hriade\u013ea z FKM s pr\u00eddavn\u00fdm stiera\u010dsk\u00fdm kr\u00fa\u017ekom na bet\u00f3n alebo labyrintov\u00fdm tesnen\u00edm; v\u0161etky vetracie otvory skrine utesnen\u00e9 filtrovan\u00fdmi odvzdu\u0161\u0148ovac\u00edmi otvormi ur\u010den\u00fdmi pre alkalick\u00e9 prostredie; \u0161tvr\u0165ro\u010dn\u00e1 v\u00fdmena oleja (krat\u0161ia ako \u0161tandardn\u00e1 priemyseln\u00e1 v\u00fdmena \u2013 kontamin\u00e1cia bet\u00f3nom r\u00fdchlo degraduje olej); mesa\u010dn\u00e1 kontrola magnetickej vyp\u00fa\u0161\u0165acej z\u00e1tky. Pri spr\u00e1vnom utesnen\u00ed m\u00f4\u017ee z\u00e1vitovkov\u00fd prevod so \u0161pecifik\u00e1ciou D2 na mie\u0161a\u010dke bet\u00f3nu dosiahnu\u0165 \u017eivotnos\u0165 3-5 rokov.<\/p>\n<\/div>\n<\/details>\n

\nAk\u00fd olej by som mal \u0161pecifikova\u0165 pre \u0165a\u017eobn\u00e9 miesto v provincii Gangwon, ktor\u00e9 pracuje pri zimn\u00fdch teplot\u00e1ch do -18 stup\u0148ov Celzia?+<\/span><\/summary>\n
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Syntetick\u00fd olej PAO je povinn\u00fd pre vonkaj\u0161ie zariadenia v zimn\u00fdch prev\u00e1dzkov\u00fdch podmienkach s teplotou pod bodom mrazu. Uve\u010fte PAO ISO VG 220 (bod tuhnutia minim\u00e1lne -40 stup\u0148ov Celzia, kinematick\u00e1 viskozita pri -18 stup\u0148ov Celzia pribli\u017ene 500 \u2013 600 cSt). Toto je s\u00edce studen\u00e9, ale zvl\u00e1dnute\u013en\u00e9 pre \u0161tartovanie motora \u2013 miner\u00e1lny olej ISO VG 460 pri -18 stup\u0148ov Celzia by bol viac ako 2 500 cSt, \u010do by sp\u00f4sobilo v\u00e1\u017ene nadpr\u00fad motora a potenci\u00e1lne zastavenie pri \u0161tartovan\u00ed. Skontrolujte, \u010di je bod tuhnutia PAO uveden\u00fd v liste \u00fadajov o mazive \u2013 niektor\u00e9 produkty PAO ozna\u010den\u00e9 ako vhodn\u00e9 do chladn\u00e9ho po\u010dasia maj\u00fa body tuhnutia iba do -30 stup\u0148ov Celzia, \u010do je hrani\u010dn\u00e1 hodnota pre prev\u00e1dzkov\u00e9 podmienky pri -18 stup\u0148ov Celzia. Olej by mal ma\u0165 aj antikor\u00f3znu \u00fapravu (ASTM D665-B alebo DIN 51585) pre vonkaj\u0161ie zariadenia vystaven\u00e9 da\u017e\u010fu a topeniu snehu.<\/p>\n<\/div>\n<\/details>\n

\nPotrebujeme z\u00e1vitovkov\u00e9 prevodov\u00e9 pohony pre podzemn\u00fa uho\u013en\u00fa ba\u0148u. Ak\u00e9 s\u00fa \u0161pecifick\u00e9 po\u017eiadavky?+<\/span><\/summary>\n
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Podzemn\u00e1 \u0165a\u017eba uhlia zav\u00e1dza \u010fal\u0161ie po\u017eiadavky nad r\u00e1mec \u0161tandardnej \u0161pecifik\u00e1cie D3: v\u00fdber motora odoln\u00e9ho vo\u010di v\u00fdbuchu alebo iskrovo bezpe\u010dn\u00e9ho motora (samotn\u00fd prevod nepredstavuje nebezpe\u010denstvo, ale iskry motora \u00e1no); vodiv\u00fd kryt alebo antistatick\u00e1 \u00faprava pre zariadenia vo vysok\u00fdch z\u00f3nach s obsahom met\u00e1nu; utesnenie uho\u013en\u00e9ho prachu (uho\u013en\u00fd prach je v\u00fdbu\u0161n\u00fd pri koncentr\u00e1ci\u00e1ch nad 35 g\/m3 a vysoko abraz\u00edvny); a kon\u0161trukcia krytu s pretlakov\u00fdm \u00fa\u010dinkom, ak je zariadenie v bl\u00edzkosti neust\u00e1leho vystavenia uho\u013en\u00e9mu prachu. Pre samotn\u00fd z\u00e1vitovkov\u00fd prevod: \u0161pecifik\u00e1cia D3 alebo D4, hriade\u013e SCM415, koleso ZCuAl10Fe3 pre odolnos\u0165 vo\u010di n\u00e1razu, utesnen\u00e9 puzdro IP67 alebo IP68, mazivo PAO s antikor\u00f3znym obalom a tesnenia FKM. Spolo\u010dnos\u0165 Korea Ever-Power m\u00f4\u017ee doda\u0165 z\u00e1vitovkov\u00fd prevod a zdokumentova\u0165 \u0161pecifik\u00e1ciu vo form\u00e1te vhodnom pre syst\u00e9m riadenia bezpe\u010dnosti bansk\u00e9ho are\u00e1lu. V\u00fdber motora odoln\u00e9ho vo\u010di v\u00fdbuchu a kon\u0161trukcia krytu pre s\u00falad s met\u00e1novou z\u00f3nou s\u00fa mimo na\u0161ej p\u00f4sobnosti, ale je mo\u017en\u00e9 ich koordinova\u0165 s v\u00fdrobcom zariadenia.<\/p>\n<\/div>\n<\/details>\n

\nAk\u00fd servisn\u00fd faktor by som mal pou\u017ei\u0165 na pohon bansk\u00e9ho dopravn\u00edka, ktor\u00fd pres\u00fava rudu z prim\u00e1rneho drvi\u010da?+<\/span><\/summary>\n
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Dopravn\u00edky s pod\u00e1va\u010dom prim\u00e1rneho drvi\u010da maj\u00fa najagres\u00edvnej\u0161ie profily za\u0165a\u017eenia v bansk\u00fdch aplik\u00e1ci\u00e1ch. Ruda vych\u00e1dzaj\u00faca z drvi\u010da m\u00e1 n\u00e1hodn\u00e9 rozlo\u017eenie ve\u013ekosti a hmotnosti \u2013 ve\u013ek\u00e9 bloky nar\u00e1\u017eaj\u00fa na p\u00e1s a vytv\u00e1raj\u00fa impulzn\u00e9 za\u0165a\u017eenie. Odpor\u00fa\u010dan\u00fd prev\u00e1dzkov\u00fd faktor: SF = 2,5 pre nepretr\u017eit\u00fa prev\u00e1dzku s \u010dast\u00fdmi siln\u00fdmi n\u00e1razmi. V\u00fdsledkom je n\u00e1vrhov\u00fd kr\u00fatiaci moment = skuto\u010dn\u00fd prev\u00e1dzkov\u00fd kr\u00fatiaci moment x 2,5. Vyberte modul z tohto n\u00e1vrhov\u00e9ho kr\u00fatiaceho momentu. Okrem toho \u0161pecifikujte materi\u00e1l D3 (hriade\u013e SCM415 + koleso ZCuAl10Fe3), aby zvl\u00e1dol faktor nepretr\u017eit\u00e9ho za\u0165a\u017eenia aj po\u017eiadavku na odolnos\u0165 vo\u010di n\u00e1razu. Ak je mo\u017en\u00e9 dopravn\u00edk zastavi\u0165 aj pri plnom za\u0165a\u017een\u00ed zaseknutou \u010das\u0165ou dopravn\u00edka nad n\u00edm (be\u017en\u00e9 v syst\u00e9moch s gravita\u010dn\u00fdm pod\u00e1van\u00edm), zahr\u0148te do rozpo\u010dtu kr\u00fatiaceho momentu aj zastavovac\u00ed kr\u00fatiaci moment \u2013 \u200b\u200bm\u00f4\u017ee 4 a\u017e 5-kr\u00e1t prekro\u010di\u0165 prev\u00e1dzkov\u00fd kr\u00fatiaci moment a predstavuje skuto\u010dn\u00fa n\u00e1vrhov\u00fa z\u00e1\u0165a\u017eov\u00fa udalos\u0165.<\/p>\n<\/div>\n<\/details>\n

\nPoskytuje spolo\u010dnos\u0165 Korea Ever-Power dokument\u00e1ciu pre k\u00f3rejsk\u00fa certifik\u00e1ciu bezpe\u010dnosti stavieb (KCS)?+<\/span><\/summary>\n
\n

\u00c1no. Pre z\u00e1vitovkov\u00e9 prevody v k\u00f3rejsk\u00fdch stavebn\u00fdch zariadeniach, ktor\u00e9 podliehaj\u00fa po\u017eiadavk\u00e1m KCS (k\u00f3rejsk\u00e9 stavebn\u00e9 normy) alebo po\u017eiadavk\u00e1m na kontrolu bezpe\u010dnosti pr\u00e1ce a pr\u00e1ce, spolo\u010dnos\u0165 Korea Ever-Power poskytuje dokument\u00e1ciu \u0161trukt\u00farovan\u00fa pre po\u017eadovan\u00fd form\u00e1t predlo\u017eenia. \u0160tandardn\u00fd bal\u00edk dokument\u00e1cie o bezpe\u010dnosti kon\u0161trukcie obsahuje: certifik\u00e1t materi\u00e1lu (sledovate\u013enos\u0165 \u010d\u00edsla tavenia valcovania, obe zlo\u017eky); z\u00e1znam o tepelnom spracovan\u00ed s procesnou dokument\u00e1ciou; z\u00e1znam o overen\u00ed h\u013abky puzdra (pre cementovan\u00e9 hriadele); spr\u00e1vu o rozmerovej kontrole CMM; a v\u00fdpo\u010det bezpe\u010dnosti samosvornosti pri \u0161pecifikovanom rozsahu prev\u00e1dzkov\u00fdch tepl\u00f4t. Form\u00e1t v\u00fdpo\u010dtu samosvornosti sa riadi metodikou k\u00f3rejsk\u00fdch priemyseln\u00fdch noriem (KS B 1408) a je form\u00e1tovan\u00fd na priame predlo\u017eenie in\u0161pek\u010dn\u00e9mu org\u00e1nu. Potvr\u010fte konkr\u00e9tnu regula\u010dn\u00fa cestu (KCS, KOSHA, smernica CE o strojoch alebo in\u00e1) vo f\u00e1ze dopytu a spolo\u010dnos\u0165 Korea Ever-Power pred prijat\u00edm objedn\u00e1vky potvrd\u00ed form\u00e1t dokumentu.<\/p>\n<\/div>\n<\/details>\n

\nAk\u00e9 je maxim\u00e1lne r\u00e1zov\u00e9 za\u0165a\u017eenie, ktor\u00e9 dok\u00e1\u017ee vydr\u017ea\u0165 z\u00e1vitovkov\u00fd prevodov\u00fd pohon D4?+<\/span><\/summary>\n
\n

\u0160pecifik\u00e1cia D4 pre n\u00e1ro\u010dn\u00e9 podmienky \u2013 cementovan\u00fd hriade\u013e SCM415 (62 HRC), koleso ZCuAl10Fe3 (pevnos\u0165 v \u0165ahu 550 MPa), ulo\u017eenie s presakom H7\/p6, modul M8 alebo v\u00e4\u010d\u0161\u00ed \u2013 dok\u00e1\u017ee kr\u00e1tkodobo (menej ako 0,5 sekundy) vydr\u017ea\u0165 \u0161pi\u010dkov\u00e9 r\u00e1zov\u00e9 momenty a\u017e do 3,0-n\u00e1sobku trval\u00e9ho menovit\u00e9ho kr\u00fatiaceho momentu bez zlomenia zuba. Toto je z\u00e1klad pre faktor n\u00e1razu D4 3,0 uveden\u00fd v \u0161pecifik\u00e1cii. Nad 3,0x: riziko zlomenia zuba sa r\u00fdchlo zvy\u0161uje s ka\u017ed\u00fdm \u010fal\u0161\u00edm faktorom pre\u0165a\u017eenia pod\u013ea vz\u0165ahu Woehlerovej krivky. Ak va\u0161a aplik\u00e1cia produkuje r\u00e1zov\u00e9 udalosti, ktor\u00e9 m\u00f4\u017eu dosiahnu\u0165 4,0-n\u00e1sobok alebo vy\u0161\u0161\u00ed prev\u00e1dzkov\u00fd kr\u00fatiaci moment, spr\u00e1vnym pr\u00edstupom nie je \u0161pecifikova\u0165 v\u00e4\u010d\u0161\u00ed faktor n\u00e1razu \u2013 spr\u00e1vnym pr\u00edstupom je nain\u0161talova\u0165 spojku obmedzuj\u00facu kr\u00fatiaci moment medzi hnac\u00ed hriade\u013e a s\u00fakolesie, ktor\u00e1 mechanicky obmedzuje pren\u00e1\u0161an\u00fd kr\u00fatiaci moment na menovit\u00fa kapacitu s\u00fakolesia. Spolo\u010dnos\u0165 Korea Ever-Power v\u00e1m m\u00f4\u017ee poradi\u0165 so \u0161pecifik\u00e1ciami obmedzova\u010da kr\u00fatiaceho momentu pre pou\u017eitie s na\u0161imi vysokov\u00fdkonn\u00fdmi prevodmi.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
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\u0160pecifikujte svoj vysokov\u00fdkonn\u00fd z\u00e1vitovkov\u00fd prevodov\u00fd pohon<\/h2>\n

Uve\u010fte typ aplik\u00e1cie, triedu prev\u00e1dzky (D3 alebo D4), rozsah okolitej teploty, po\u017eiadavky na IP, podmienky r\u00e1zov\u00e9ho za\u0165a\u017eenia a po\u017eiadavky na dokument\u00e1ciu (KCS, CE alebo norma). Spolo\u010dnos\u0165 Korea Ever-Power vr\u00e1ti potvrden\u00fa \u0161pecifik\u00e1ciu D3\/D4 s dokument\u00e1ciou h\u013abky puzdra a v\u00fdpo\u010dtom samosvornosti do jedn\u00e9ho pracovn\u00e9ho d\u0148a.<\/p>\n

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Prehliada\u0165 produkty pre vysok\u00e9 za\u0165a\u017eenie<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n

Redaktor: Cxm<\/p>","protected":false},"excerpt":{"rendered":"

  Application Engineering Guide \u00b7 Construction & Mining Worm Gear Drives for Construction, Mining and Heavy Earthmoving Equipment Duty class D3 and D4. Shock loads at 2.5-3.0x running torque. Operating from -20 degrees C to +55 degrees C. IP67 sealing against drilling mud and quarry dust. The specification that separates a gear set that lasts […]<\/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":[4774],"tags":[1394,1399],"class_list":["post-1936","post","type-post","status-publish","format-standard","hentry","category-worm-gear","tag-worm-gear","tag-worm-gear-worm"],"_links":{"self":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts\/1936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/comments?post=1936"}],"version-history":[{"count":2,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts\/1936\/revisions"}],"predecessor-version":[{"id":1938,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts\/1936\/revisions\/1938"}],"wp:attachment":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/media?parent=1936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/categories?post=1936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/tags?post=1936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}