{"id":2388,"date":"2026-06-26T03:47:24","date_gmt":"2026-06-26T03:47:24","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2388"},"modified":"2026-06-26T03:57:53","modified_gmt":"2026-06-26T03:57:53","slug":"helical-gears-for-rubber-mixer-and-extruder-gearboxes","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/sk\/helical-gears-for-rubber-mixer-and-extruder-gearboxes\/","title":{"rendered":"\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 pre prevodovky gumov\u00fdch mie\u0161a\u010diek a extrud\u00e9rov"},"content":{"rendered":"
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\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 pre prevodovky mie\u0161a\u010diek gumy a extrud\u00e9rov \u2013 kon\u0161trukcia pohonu s vysok\u00fdm kr\u00fatiacim momentom a n\u00edzkou r\u00fdchlos\u0165ou<\/h1>\n

Ten\/T\u00e1\/To \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Pohony vo vn\u00fatri prevodoviek mie\u0161a\u010diek gumy a extrud\u00e9rov plastov patria medzi aplik\u00e1cie s najvy\u0161\u0161\u00edm kr\u00fatiacim momentom v priemyselnej v\u00fdrobe ozuben\u00fdch kolies: v\u00fdstupn\u00e9 kr\u00fatiace momenty 50 000 \u2013 500 000 N\u00b7m pri v\u00fdstupn\u00fdch ot\u00e1\u010dkach 10 \u2013 30 ot.\/min. v kombin\u00e1cii so za\u0165a\u017een\u00edm pri op\u00e4tovnom spusten\u00ed pri zamrznut\u00ed, ktor\u00e9 m\u00f4\u017ee bez varovania dosiahnu\u0165 menovit\u00fd kr\u00fatiaci moment 400 \u2013 5 001 TP3T. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> V\u00fdsledn\u00e1 \u0161pecifik\u00e1cia \u2013 modul M20\u2013M50, induk\u010dne kalen\u00e1 oce\u013e 42CrMo4 alebo cementovan\u00e1 oce\u013e 17CrNiMo6, prev\u00e1dzkov\u00fd faktor KA a\u017e 4,0 \u2013 sa vyrovn\u00e1 len m\u00e1loktor\u00e9mu in\u00e9mu priemyseln\u00e9mu vyu\u017eitiu okrem ban\u00edctva a cement\u00e1rstva.<\/p>\n

Vy\u017eiada\u0165 si \u0161pecifik\u00e1ciu mie\u0161acieho zariadenia \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Typy mie\u0161a\u010diek a extrud\u00e9rov \u2013 kde sa pou\u017e\u00edvaj\u00fa \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/h2>\n

Tri odli\u0161n\u00e9 typy strojov v mie\u0161acom a extr\u00faznom priemysle pou\u017e\u00edvaj\u00fa ve\u013ekomodulov\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pohony, ka\u017ed\u00fd s r\u00f4znymi charakteristikami za\u0165a\u017eenia:<\/p>\n

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Vn\u00fatorn\u00fd (Banbury) mie\u0161a\u010d gumy<\/strong><\/p>\n

Vn\u00fatorn\u00fd mix\u00e9r miesi gumov\u00e9 zmesi medzi dvoma protibe\u017en\u00fdmi rotormi v uzavretej komore. R\u00fdchlos\u0165 rotora: 15 \u2013 40 ot.\/min. Kritick\u00e1 udalos\u0165 za\u0165a\u017eenia \u2013 op\u00e4tovn\u00fd spustenie zamrznutej n\u00e1plne \u2013 nast\u00e1va, ke\u010f zmie\u0161an\u00e1 zmes stuhne po\u010das nepl\u00e1novan\u00e9ho vypnutia. Op\u00e4tovn\u00fd spustenie proti zamrznutej n\u00e1plni generuje kr\u00fatiace momenty 3 \u2013 5 \u00d7 menovit\u00fd kr\u00fatiaci moment pri prakticky nulov\u00fdch ot\u00e1\u010dkach. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Kr\u00fatiace momenty na v\u00fdstupnom hriadeli dosahuj\u00fa na ve\u013ek\u00fdch 600-litrov\u00fdch strojoch 150 000 \u2013 600 000 N\u00b7m. Ide o najn\u00e1ro\u010dnej\u0161\u00ed vrchol kr\u00fatiaceho momentu v akejko\u013evek priemyselnej prevodovke.<\/p>\n<\/div>\n

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Dvojz\u00e1vitovkov\u00fd extrud\u00e9r<\/strong><\/p>\n

S\u00fabe\u017ene alebo protibe\u017ene rotuj\u00face dvojit\u00e9 z\u00e1vitovky spracov\u00e1vaj\u00fa plasty, potravin\u00e1rske zmesi alebo lepidl\u00e1 v nepretr\u017eitej prev\u00e1dzke. R\u00fdchlos\u0165 z\u00e1vitovky: 100 \u2013 600 ot.\/min. (vy\u0161\u0161ia ako pri mie\u0161a\u010doch gumy). V\u00fdstupn\u00fd kr\u00fatiaci moment na z\u00e1vitovku: 1 000 \u2013 30 000 N\u00b7m. R\u00e1zov\u00e9 udalosti: kontamin\u00e1cia kovu v vstupnom materi\u00e1li (ne\u010distoty zo \u017eeleza) sp\u00f4sobuje okam\u017eit\u00e9 n\u00e1rasty za\u0165a\u017eenia. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> rozde\u013eovacia prevodovka mus\u00ed rozde\u013eova\u0165 rovnak\u00fd kr\u00fatiaci moment na obe skrutky \u2013 \u010do vy\u017eaduje zodpovedaj\u00faci v\u00fdstup \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> a spolo\u010dn\u00fd vstupn\u00fd pastorok.<\/p>\n<\/div>\n

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Planet\u00e1rny alebo Sigma lopatkov\u00fd mix\u00e9r<\/strong><\/p>\n

Chemick\u00e9, farmaceutick\u00e9 a potravin\u00e1rske mie\u0161a\u010dky ot\u00e1\u010daj\u00fa lopatkov\u00fdm alebo kotvov\u00fdm obe\u017en\u00fdm kolesom r\u00fdchlos\u0165ou 10 \u2013 60 ot.\/min. V\u00fdstupn\u00e9 kr\u00fatiace momenty s\u00fa v porovnan\u00ed s gumov\u00fdmi mie\u0161a\u010dkami mierne (5 000 \u2013 50 000 N\u00b7m), ale prevodovka mus\u00ed zvl\u00e1da\u0165 \u010dast\u00e9 d\u00e1vkov\u00e9 spracovanie s premenlivou \u00farov\u0148ou plnenia \u2013 \u010do vytv\u00e1ra premenliv\u00fd profil za\u0165a\u017eenia, ktor\u00fd si vy\u017eaduje presn\u00e9 pos\u00fadenie prev\u00e1dzkov\u00e9ho faktora. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Prevodovka zvy\u010dajne obsahuje mechanick\u00fd obmedzova\u010d kr\u00fatiaceho momentu na ochranu n\u00e1doby mie\u0161adla a pohonu pred pre\u0165a\u017een\u00edm po\u010das zaseknutia materi\u00e1lu.<\/p>\n<\/div>\n<\/div>\n

Servisn\u00fd faktor \u2013 pre\u010do dosahuje KA v pohonoch gumov\u00fdch mie\u0161a\u010diek hodnoty 3,0 \u2013 4,0<\/h2>\n

Servisn\u00fd faktor pre mix\u00e9r a extrud\u00e9r \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pohony s\u00fa v be\u017enej priemyselnej prev\u00e1dzke najvy\u0161\u0161ie z akejko\u013evek kateg\u00f3rie aplik\u00e1ci\u00ed, a to z dvoch nez\u00e1visl\u00fdch a kumulat\u00edvnych d\u00f4vodov:<\/p>\n

\n\n\n\n\n\n\n\n\n
Udalos\u0165 na\u010d\u00edtania<\/th>\nN\u00e1sobok kr\u00fatiaceho momentu<\/th>\nTrvanie<\/th>\nFrekvencia<\/th>\nPr\u00edspevok KA<\/th>\n<\/tr>\n<\/thead>\n
Vrchol norm\u00e1lneho mie\u0161acieho cyklu<\/td>\nMenovit\u00fd v\u00fdkon 120\u2013150%<\/td>\n10\u201330 s na cyklus<\/td>\nKa\u017ed\u00e1 d\u00e1vka<\/td>\nKA \u2248 1,50 z\u00e1klad<\/td>\n<\/tr>\n
N\u00e1hly pokles teploty (stuhnutie zmesi)<\/td>\n150\u2013200% s menovit\u00fdm v\u00fdkonom<\/td>\n2\u20135 min\u00fat<\/td>\nNieko\u013ekokr\u00e1t za smenu v chladnom po\u010das\u00ed<\/td>\n+0,25\u20130,50 k KA<\/td>\n<\/tr>\n
Norm\u00e1lny studen\u00fd \u0161tart s \u010diasto\u010dne vytvrdenou n\u00e1pl\u0148ou<\/td>\nMenovit\u00fd v\u00fdkon 200\u2013300%<\/td>\n5\u201320 s<\/td>\nKa\u017ed\u00fd \u0161tart zmeny<\/td>\n+0,50\u20130,75 k KA<\/td>\n<\/tr>\n
Zamrznut\u00fd re\u0161tart nab\u00edjania (najhor\u0161\u00ed pr\u00edpad)<\/strong><\/td>\nMenovit\u00fd v\u00fdkon 400\u2013500%<\/strong><\/td>\nA\u017e 30 s, k\u00fdm sa neuvo\u013en\u00ed n\u00e1boj alebo sa nevypne ochrana<\/strong><\/td>\nVz\u00e1cne, ale treba pre\u017ei\u0165<\/td>\nRiadi statick\u00fa kontrolu zlomeniny zuba<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Odpor\u00fa\u010dan\u00e9 hodnoty KA pre pohony so \u0161pir\u00e1lov\u00fdmi ozuben\u00fdmi kolesami mie\u0161a\u010diek\/extrud\u00e9rov (\u00fadaje z praxe AGMA 2101 \/ Korea Ever-Power):
\nDvojz\u00e1vitovkov\u00fd extrud\u00e9r (motor DOL, bez ochrany proti prevr\u00e1teniu): KA = 1,75\u20132,25
\nChemick\u00fd\/farmaceutick\u00fd planet\u00e1rny mix\u00e9r: KA = 1,75\u20132,50
\nMie\u0161ac\u00ed mlyn na gumu (otvoren\u00fd mlyn, 2 valce): KA = 2,00\u20132,50
\nVn\u00fatorn\u00fd (Banbury) mie\u0161a\u010d gumy (hydraulicn\u00e1 spojka): KA = 2,50\u20133,00
\nVn\u00fatorn\u00fd mie\u0161a\u010d gumy (motor DOL, bez hydraulickej spojky): KA = 3,00\u20134,00<\/p>\n

Pozn\u00e1mka: Okrem toho sa mus\u00ed skontrolova\u0165 aj zmrazen\u00fd vrchol kr\u00fatiaceho momentu (400\u2013500%).
\nmedzn\u00e1 hodnota statick\u00e9ho ohybov\u00e9ho nap\u00e4tia kore\u0148a zuba s pou\u017eit\u00edm statick\u00e9ho bezpe\u010dnostn\u00e9ho faktora S_F_stat \u2265 1,0
\npri \u0161pi\u010dkovom pre\u0165a\u017een\u00ed \u2013 oddelene od kontroly \u00fanavy KA pri menovitom kr\u00fatiacom momente.<\/p>\n

V\u00fdber materi\u00e1lu a modulu pre \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 mie\u0161a\u010dky<\/h2>\n

\"Ve\u013ekomodulov\u00e9<\/p>\n

Ve\u013ek\u00fd modul \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pre prevodovku mie\u0161a\u010dky gumy \u2014 kovan\u00e1 42CrMo4, induk\u010dne kalen\u00e1 HRC 50\u201355, modul M24. Pri v\u00fdstupn\u00fdch kr\u00fatiacim momentoch 150 000 \u2013 500 000 N\u00b7m a ot\u00e1\u010dkach rotora 15 \u2013 30 ot.\/min. je po\u017eadovan\u00fd modul a \u0161\u00edrka \u010dela ur\u010den\u00fd kr\u00fatiacim momentom po op\u00e4tovnom spusten\u00ed zmrazenej n\u00e1plne (400 \u2013 500% menovit\u00e9ho za\u0165a\u017eenia), nie norm\u00e1lnym prev\u00e1dzkov\u00fdm za\u0165a\u017een\u00edm, v\u010faka \u010domu je t\u00e1to prevodovka jednou z najvy\u0161\u0161\u00edch jednotkov\u00fdch z\u00e1\u0165a\u017e\u00ed. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> aplik\u00e1cie v priemyselnej v\u00fdrobe<\/p>\n

Obmedzenia ve\u013ekosti prierezu a tepeln\u00e9ho spracovania<\/h3>\n

V\u00fdstupn\u00fd hriade\u013e gumov\u00e9ho mix\u00e9ra \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Pri M32 so z = 30 zubami m\u00e1 rozstupn\u00fd priemer pribli\u017ene 1 000 mm a prierez polotovaru s priemerom 900 \u2013 1 100 mm. T\u00e1to ve\u013ekos\u0165 profilu presahuje kalite\u013enos\u0165 ocele 20CrMnTi (ktor\u00e1 sa spo\u013eahlivo kal\u00ed cez profily s priemerom pribli\u017ene 300 \u2013 400 mm). Spr\u00e1vny v\u00fdber materi\u00e1lu z\u00e1vis\u00ed od po\u017eadovanej tvrdosti povrchu a dostupn\u00e9ho tepeln\u00e9ho spracovania:<\/p>\n

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42CrMo4 + induk\u010dn\u00e9 kalenie<\/strong><\/p>\n

\u0160tandardn\u00e1 vo\u013eba pre ve\u013ekoprierezov\u00e9 mie\u0161a\u010dky \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> (OD 500 \u2013 2 000 mm). Polotovar m\u00e1 prierez QT na HB 280 \u2013 320, potom sa jednotliv\u00e9 zuby alebo z\u00f3ny zubov induk\u010dne kalia na HRC 50 \u2013 55. Jadro QT s HB 280 \u2013 320 poskytuje h\u00fa\u017eevnatos\u0165 potrebn\u00fa pre n\u00e1razy pri op\u00e4tovnom spusten\u00ed zmrazen\u00e9ho n\u00e1boja. Induk\u010dn\u00e9 kalenie p\u00f4sob\u00ed lok\u00e1lne \u2013 nedoch\u00e1dza k tepelnej deform\u00e1cii v priereze. \u03c3_H lim = 820 \u2013 950 MPa; \u03c3_F lim = 340 \u2013 380 MPa v oblasti kore\u0148a zuba.<\/p>\n<\/div>\n

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17CrNiMo6 + Cement\u00e1cia v plyne (men\u0161ie moduly)<\/strong><\/p>\n

Pre ozuben\u00e9 koles\u00e1 extrud\u00e9rov a farmaceutick\u00fdch mie\u0161a\u010diek s rozmermi M8\u2013M20 (vonkaj\u0161\u00ed priemer 200\u2013600 mm) poskytuje 17CrNiMo6 cementovan\u00e1 na HRC 58\u201362 hodnotu \u03c3_H lim = 1600\u20131800 MPa, \u010do umo\u017e\u0148uje v\u00fdrobu kompaktnej\u0161\u00edch a \u013eah\u0161\u00edch prevodoviek s rovnakou kr\u00fatiacou silou. Cement\u00e1cia je mo\u017en\u00e1 pre profily s priemerom pribli\u017ene 500 mm z 17CrNiMo6. Pre v\u00e4\u010d\u0161ie profily je indukcia 42CrMo4 jedinou praktickou cestou.<\/p>\n<\/div>\n<\/div>\n

V\u00fdber modulu a \u0161\u00edrky tv\u00e1re<\/h3>\n

Modul a \u0161\u00edrka plochy pre mix\u00e9r \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> sa zvy\u010dajne riadia sk\u00f4r \u0161pi\u010dkov\u00fdm kr\u00fatiacim momentom zmrazen\u00e9ho n\u00e1boja ne\u017e menovit\u00fdm prev\u00e1dzkov\u00fdm kr\u00fatiacim momentom \u2013 statick\u00e1 kontrola ohybu kore\u0148a zuba pri 400\u2013500% menovit\u00e9ho kr\u00fatiaceho momentu s S_F_stat \u2265 1,0 nastavuje minim\u00e1lny modul:<\/p>\n

Statick\u00e1 kontrola ohybu kore\u0148a zuba (pri zmrazenom n\u00e1boji, \u0161pi\u010dkov\u00fd kr\u00fatiaci moment T_peak):
\nF_t_peak = 2 \u00d7 T_peak \/ d\u2081
\n\u03c3_F_static = F_t_peak \/ (b \u00d7 Mn) \u00d7 Y_Fa \u00d7 Y_Sa \u00d7 Y_\u03b5 \u00d7 Y_\u03b2 \u00d7 KA_static
\nkde KA_static = T_peak \/ T_rated (\u0161pi\u010dkov\u00fd faktor pre\u0165a\u017eenia) \u00d7 KA_base = 4,0\u20135,0<\/p>\n

Po\u017eadovan\u00e9: \u03c3_F_static \u2264 \u03c3_F_lim_static (pr\u00edpustn\u00e1 statick\u00e1 hodnota pod\u013ea ISO 6336-3 \u2248 2,0 \u00d7 \u03c3_F_lim_fatigue)<\/p>\n

Pr\u00edklad: 600-litrov\u00e1 mie\u0161a\u010dka gumy, T_rated = 150 000 N\u00b7m, T_peak = 600 000 N\u00b7m
\nS M32, z=30, b=500 mm, indukcia 42CrMo4, \u03c3_F_lim_static \u2248 760 N\/mm\u00b2:
\n\u03c3_F_static \u2248 (2 \u00d7 600 000 000)\/(d\u2081 \u00d7 500 \u00d7 32) \u00d7 geometrick\u00e9 faktory \u00d7 1,0
\n\u2192 Modul M32 je tak akur\u00e1t; M36 poskytuje pohodln\u00fd S_F_stat \u2265 1,2<\/p>\n

Architekt\u00fara pohonu a \u00faloha hydraulickej spojky<\/h2>\n

Najv\u00e4\u010d\u0161\u00ed mie\u0161a\u010d gumy \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Pohony zah\u0155\u0148aj\u00fa hydraulick\u00fa spojku (hydrodynamick\u00fa spojku) medzi motorom a vstupn\u00fdm hriade\u013eom prevodovky. Hydraulick\u00e1 spojka obmedzuje pren\u00e1\u0161an\u00fd kr\u00fatiaci moment po\u010das rozbehu \u2013 ke\u010f by kr\u00fatiaci moment motora inak bol 250 \u2013 3501 TP3T menovit\u00e9ho kr\u00fatiaceho momentu pri zastaven\u00ed \u2013 a poskytuje ur\u010dit\u00fd stupe\u0148 ochrany pred n\u00e1razmi po\u010das op\u00e4tovn\u00e9ho spustenia pri zamrznutom nab\u00edjan\u00ed. Hydraulick\u00e1 spojka v\u0161ak NEODSTRA\u0147UJE \u0161pi\u010dkov\u00fd kr\u00fatiaci moment pri zamrznutom nab\u00edjan\u00ed: ke\u010f sa spojka napln\u00ed a bl\u00ed\u017ei sa k synchr\u00f3nnym ot\u00e1\u010dkam, kr\u00e1tko prejde z\u00f3nou n\u00e1sobenia kr\u00fatiaceho momentu, ktor\u00e1 dok\u00e1\u017ee prenies\u0165 150 \u2013 2001 TP3T menovit\u00e9ho kr\u00fatiaceho momentu do prevodovky. \u0160pi\u010dkov\u00e9 za\u0165a\u017eenie pri zamrznutom nab\u00edjan\u00ed st\u00e1le ur\u010duje... \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> kontrola ohybu kore\u0148a zuba aj s hydraulickou spojkou v hnacom \u00fastrojenstve.<\/p>\n

Bez hydraulickej spojky (motor s priamym priamym zapojen\u00edm):<\/strong> \u0160pi\u010dkov\u00fd kr\u00fatiaci moment zmrazen\u00e9ho n\u00e1boja prech\u00e1dza na \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pri plnej hodnote \u2014 400\u20135001 TP3T menovit\u00e9ho v\u00fdkonu. Pri hydraulickej spojke je pren\u00e1\u0161an\u00fd vrchol obmedzen\u00fd na pribli\u017ene 200\u20133001 TP3T menovit\u00e9ho v\u00fdkonu. Spolo\u010dnos\u0165 Korea Ever-Power pri \u0161pecifik\u00e1cii prevodovky mie\u0161adla po\u017eaduje inform\u00e1cie o pr\u00edtomnosti a menovitom v\u00fdkone akejko\u013evek hydraulickej spojky. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong>, preto\u017ee menovit\u00fd v\u00fdkon hydraulickej spojky priamo ovplyv\u0148uje, ktor\u00e1 hodnota KA je spr\u00e1vna pre v\u00fdpo\u010det zuba ozuben\u00e9ho kolesa.<\/div>\n

Mazanie pre n\u00edzkor\u00fdchlostn\u00e9 pohony so \u0161pir\u00e1lov\u00fdmi ozuben\u00fdmi kolesami s vysok\u00fdm kr\u00fatiacim momentom<\/h2>\n

Mix\u00e9r a extrud\u00e9r \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Pohony pracuj\u00fa pri ve\u013emi n\u00edzkych r\u00fdchlostiach na \u010diare rozstupu (0,5 \u2013 3 m\/s), kde s\u00fa straty v\u00edren\u00edm zanedbate\u013en\u00e9, ale hr\u00fabka filmu EHL je v\u00fdrazne ten\u0161ia ako vo vysokor\u00fdchlostn\u00fdch prevodovk\u00e1ch. Hr\u00fabka filmu EHL h_min \u221d v^0,68 \u2013 pri v = 1 m\/s je film pribli\u017ene 8 \u2013 10\u00d7 ten\u0161\u00ed ako pri v = 10 m\/s pre rovnak\u00fa viskozitu oleja. Na kompenz\u00e1ciu, mie\u0161acie prevodovky vy\u017eaduj\u00fa v\u00fdrazne vy\u0161\u0161iu viskozitu oleja ako r\u00fdchlobe\u017en\u00e9 prevodovky:<\/p>\n

Odpor\u00fa\u010dan\u00e1 viskozita pre pohony so \u0161pir\u00e1lov\u00fdmi ozuben\u00fdmi kolesami mie\u0161a\u010diek\/extrud\u00e9rov (miner\u00e1lny olej DIN 51517 CLP):
\nv < 0,5 m\/s (extr\u00e9mne pomal\u00e9, posledn\u00fd stupe\u0148 mie\u0161a\u010dky gumy): ISO VG 680\u20131000
\n0,5\u20132 m\/s (pomaly, typick\u00fd medzistupe\u0148 mie\u0161adla): ISO VG 320\u2013680
\n2\u20135 m\/s (medzir\u00fdchlos\u0165 extrud\u00e9ra): ISO VG 220\u2013320<\/p>\n

Vysoko visk\u00f3zne miner\u00e1lne oleje ur\u010den\u00e9 pre pomal\u00e9 mie\u0161anie \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> maj\u00fa vynikaj\u00face bal\u00edky pr\u00edsad pre hrani\u010dn\u00e9 mazanie (extr\u00e9mne tlakov\u00e9 EP s\u00edrovo-fosforov\u00e9), ktor\u00e9 chr\u00e1nia povrchy zubov po\u010das kr\u00e1tkych udalost\u00ed rozpadu elastohydrodynamick\u00e9ho filmu, ku ktor\u00fdm doch\u00e1dza pri \u0161pi\u010dkovom za\u0165a\u017een\u00ed zamrznutou n\u00e1pl\u0148ou. Syntetick\u00e9 oleje PAO sa \u010doraz viac pou\u017e\u00edvaj\u00fa v mie\u0161ac\u00edch prevodovk\u00e1ch na pred\u013a\u017eenie intervalov v\u00fdmeny oleja (3 \u2013 5 rokov oproti 1 \u2013 2 rokom pre miner\u00e1lny olej) a na udr\u017eanie prietoku oleja pri studenom \u0161tarte v zimn\u00fdch podmienkach.<\/p>\n

Korea Ever-Power \u2014 Mo\u017enos\u0165 \u0161pir\u00e1lov\u00e9ho prevodu pre ve\u013ekoobjemov\u00fd mix\u00e9r<\/h2>\n

\"Obr\u00e1banie<\/p>\n

V\u00fdroba a kontrola ve\u013ek\u00fdch modulov spolo\u010dnos\u0165ou Korea Ever-Power \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> pre prevodovky mie\u0161a\u010diek a extrud\u00e9rov \u2014 M16\u2013M50 z induk\u010dne kalenej ocele 42CrMo4 alebo cementovanej ocele 17CrNiMo6, so statickou kontrolou ohybu zmrazenej vs\u00e1dzky, meran\u00edm tvrdosti a meran\u00edm analyz\u00e1torom ozuben\u00fdch kolies zahrnut\u00fdmi v objedn\u00e1vkovej dokument\u00e1cii<\/p>\n

K\u00f3rejsk\u00e1 spolo\u010dnos\u0165 Ever-Power vyr\u00e1ba ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/strong> pre prevodovky mie\u0161a\u010diek gumy a extrud\u00e9rov v rozmeroch M8\u2013M50, s vonkaj\u0161\u00edm priemerom 200\u20132 500 mm, z induk\u010dne kalenej ocele 42CrMo4 (HRC 50\u201355) a cementovanej ocele 17CrNiMo6 (HRC 58\u201362), pri\u010dom v dokument\u00e1cii objedn\u00e1vky je \u0161tandardne zahrnut\u00e1 statick\u00e1 kontrola ohybu zmrazenej n\u00e1boje (S_F_stat pri T_peak) \u2013 \u010d\u00edm sa zabezpe\u010d\u00ed, \u017ee prevodovka je dimenzovan\u00e1 pre skuto\u010dn\u00fd najhor\u0161\u00ed mo\u017en\u00fd pr\u00edpad, nielen pre menovit\u00fd prev\u00e1dzkov\u00fd kr\u00fatiaci moment. Ako priamy v\u00fdrobca \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a>Spolo\u010dnos\u0165 Korea Ever-Power po\u017eaduje menovit\u00fd v\u00fdkon hydraulickej spojky (ak je k dispoz\u00edcii) a potvrden\u00fa hodnotu maxim\u00e1lneho kr\u00fatiaceho momentu pri ka\u017edom porad\u00ed prevodov\u00e9ho stup\u0148a mie\u0161adla \u2013 dva vstupy, ktor\u00e9 najsilnej\u0161ie ovplyv\u0148uj\u00fa po\u017eadovan\u00fd modul. Prehliadajte si sortiment dvojit\u00fdch \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a> pre v\u0161etky mo\u017enosti modulov a materi\u00e1lov.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n

Ak\u00fd je rozdiel v \u0161pecifik\u00e1cii \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa medzi dvojz\u00e1vitovkov\u00fdm extrud\u00e9rom so s\u00fabe\u017enou a protibe\u017enou rot\u00e1ciou?<\/strong><\/p>\n

Usporiadanie ozuben\u00fdch kolies sa v\u00fdrazne l\u00ed\u0161i. V extrud\u00e9ri s rovnak\u00fdm smerom ot\u00e1\u010dania (najbe\u017enej\u0161\u00ed na mie\u0161anie) sa obe skrutky ot\u00e1\u010daj\u00fa rovnak\u00fdm smerom \u2013 rozde\u013eovacia prevodovka pou\u017e\u00edva medzi\u013eahl\u00fd hriade\u013e s dvoma identick\u00fdmi v\u00fdstupn\u00fdmi ozuben\u00fdmi kolesami poh\u00e1\u0148an\u00fdmi z jedn\u00e9ho vstupn\u00e9ho pastorka, tak\u017ee \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Pomery p\u00e1rov s\u00fa identick\u00e9 a rozlo\u017eenie kr\u00fatiaceho momentu je inherentne vyv\u00e1\u017een\u00e9. V protibe\u017enom extrud\u00e9ri sa dva z\u00e1vitovky ot\u00e1\u010daj\u00fa v opa\u010dn\u00fdch smeroch \u2013 rozde\u013eovacia prevodovka reverzuje jeden v\u00fdstupn\u00fd hriade\u013e cez vlo\u017een\u00e9 koleso, \u010d\u00edm sa zav\u00e1dza \u010fal\u0161\u00ed z\u00e1ber ozuben\u00fdch kolies, ktor\u00fd je potrebn\u00e9 dimenzova\u0165 a skontrolova\u0165. Vlo\u017een\u00e9 koleso v protibe\u017enom extrud\u00e9ri m\u00e1 dvojn\u00e1sobn\u00fa frekvenciu kontaktu zubov ako hlavn\u00e9 ozuben\u00e9 koles\u00e1 (zaber\u00e1 s hnac\u00edm aj hnan\u00fdm ozuben\u00fdm kolesom) a mus\u00ed by\u0165 \u0161pecifikovan\u00e9 s korek\u010dn\u00fdm faktorom \u00fanavy vlo\u017een\u00e9ho kolesa Y_M = 0,7 pre obr\u00e1ten\u00fd ohyb, ak ide o skuto\u010dn\u00e9 vlo\u017een\u00e9 koleso.<\/p>\n<\/div>\n

\n

Mala by by\u0165 \u0161pir\u00e1lov\u00e1 prevodovka mie\u0161a\u010dky gumy \u0161pecifikovan\u00e1 pre \u0161pi\u010dkov\u00fd kr\u00fatiaci moment zmrazenej n\u00e1plne alebo pre norm\u00e1lny menovit\u00fd kr\u00fatiaci moment?<\/strong><\/p>\n

Obe kontroly s\u00fa povinn\u00e9 a nez\u00e1visl\u00e9. Ozuben\u00e9 koleso mus\u00ed prejs\u0165: (1) kontrolou \u00fanavov\u00e9ho kontaktn\u00e9ho nap\u00e4tia pri menovitom kr\u00fatiacom momente s KA = 2,5 \u2013 3,0 (odolnos\u0165 proti jamkovej tvorbe po\u010das projektovanej \u017eivotnosti 40 000 \u2013 100 000 hod\u00edn); a (2) statickou kontrolou ohybu kore\u0148a zuba pri \u0161pi\u010dkovom kr\u00fatiacom momente zmrazenej vs\u00e1dzky T_peak = 4 \u2013 5 \u00d7 T_rated s bezpe\u010dnostn\u00fdm faktorom S_F_stat \u2265 1,0 (\u017eiadne lomenie pri jednorazovej \u0161pi\u010dkovej udalosti). Pre ve\u013ek\u00e9 mie\u0161a\u010dky gumy \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong>V\u00fdber modulu sa zvy\u010dajne riadi statickou kontrolou kr\u00fatiaceho momentu pri zamrznutom nab\u00edjan\u00ed \u2013 prevodov\u00fd stupe\u0148 je v\u00e4\u010d\u0161\u00ed, ako by vy\u017eadovala samotn\u00e1 \u00fanavov\u00e1 \u00fa\u010dinnos\u0165, najm\u00e4 aby pre\u017eil zriedkav\u00fd pr\u00edpad zamrznutia nab\u00edjania. Spolo\u010dnos\u0165 Korea Ever-Power vykon\u00e1va obe kontroly a v dokument\u00e1cii objedn\u00e1vky uv\u00e1dza oba bezpe\u010dnostn\u00e9 faktory.<\/p>\n<\/div>\n

\n

Ako \u010dasto by sa mal meni\u0165 prevodov\u00fd olej v prevodovke mie\u0161a\u010dky gumy?<\/strong><\/p>\n

Pri miner\u00e1lnom oleji ISO VG 680 spolo\u010dnos\u0165 Korea Ever-Power odpor\u00fa\u010da ka\u017edoro\u010dn\u00fa v\u00fdmenu oleja pre mie\u0161a\u010dky. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> prevodovky v nepretr\u017eitej v\u00fdrobe (24 hod\u00edn, 350 dn\u00ed\/rok) alebo po 2 000 prev\u00e1dzkov\u00fdch hodin\u00e1ch \u2013 pod\u013ea toho, \u010do nastane sk\u00f4r. Vysok\u00e1 viskozita oleja a bal\u00edk adit\u00edv EP sa degraduj\u00fa v d\u00f4sledku tepeln\u00fdch cyklov a mechanick\u00e9ho strihu v kontaktnej z\u00f3ne s vysok\u00fdm kr\u00fatiacim momentom a n\u00edzkou r\u00fdchlos\u0165ou. Anal\u00fdza oleja (viskozita, \u010d\u00edslo kyslosti, po\u010det \u010dast\u00edc, obsah kovov) po 1 000 hodin\u00e1ch potvrdzuje, \u010di je ro\u010dn\u00fd interval primeran\u00fd pre konkr\u00e9tne prev\u00e1dzkov\u00e9 podmienky. Prechod na syntetick\u00fd olej PAO ISO VG 680 predl\u017euje interval v\u00fdmeny oleja na 5 000 \u2013 8 000 hod\u00edn \u2013 \u010do \u010dasto umo\u017e\u0148uje dosiahnu\u0165 interval 3 \u2013 5 rokov pri pokra\u010duj\u00facom monitorovan\u00ed anal\u00fdzy oleja.<\/p>\n<\/div>\n

\n

M\u00f4\u017eu by\u0165 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 v star\u0161ej prevodovke mie\u0161a\u010dky gumy modernizovan\u00e9 na vy\u0161\u0161iu triedu materi\u00e1lu bez v\u00fdmeny krytu?<\/strong><\/p>\n

\u00c1no \u2013 v\u00fdmena ozuben\u00fdch kolies s m\u00e4kk\u00fdmi bokmi 42CrMo4 QT (HB 280\u2013320, \u03c3_H lim \u2248 570 MPa) za ozuben\u00e9 koles\u00e1 s induk\u010dn\u00fdm kalen\u00edm 42CrMo4 (HRC 52, \u03c3_H lim \u2248 900 MPa) zvy\u0161uje medzu \u00fanavy kontaktu pribli\u017ene o 571 TP3T bez akejko\u013evek zmeny modulu, po\u010dtu zubov alebo vzdialenosti os\u00ed. \u0160tandardn\u00fd modul, \u0161\u00edrka \u010dela a geometria puzdra zost\u00e1vaj\u00fa nezmenen\u00e9, preto\u017ee moderniz\u00e1cia sa t\u00fdka materi\u00e1lu \u2013 nie geometrie ozuben\u00e9ho kolesa. Vo v\u00e4\u010d\u0161ine pr\u00edpadov t\u00e1to moderniz\u00e1cia tie\u017e odstra\u0148uje potrebu obmedzenia prev\u00e1dzkovej r\u00fdchlosti, s ktor\u00fdm pracuje mnoho star\u0161\u00edch prevodoviek mie\u0161a\u010diek gumy s m\u00e4kk\u00fdmi bokmi, preto\u017ee ich boky zubov sa opotrebovali a obsluha zn\u00ed\u017eila ot\u00e1\u010dky mie\u0161a\u010dky, aby pred\u013a\u017eila \u017eivotnos\u0165 ozuben\u00e9ho kolesa. Spolo\u010dnos\u0165 Korea Ever-Power vykonala t\u00fato moderniz\u00e1ciu pre nieko\u013eko prevodoviek mie\u0161a\u010diek gumy, kde origin\u00e1lne diely OEM neboli k dispoz\u00edcii za prijate\u013en\u00fa cenu.<\/p>\n<\/div>\n

\n

\u0160pecifik\u00e1cia \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa gumov\u00e9ho mix\u00e9ra a extrud\u00e9ra<\/h2>\n

Uve\u010fte typ mie\u0161a\u010dky, menovit\u00fd v\u00fdstupn\u00fd kr\u00fatiaci moment, maxim\u00e1lny \u0161pi\u010dkov\u00fd kr\u00fatiaci moment (alebo odhad zmrazenej n\u00e1plne), v\u00fdstupn\u00fa r\u00fdchlos\u0165 a menovit\u00fd v\u00fdkon hydraulickej spojky, ak je k dispoz\u00edcii. Spolo\u010dnos\u0165 Korea Ever-Power pred potvrden\u00edm \u0161pecifik\u00e1cie vykon\u00e1 kontrolu \u00fanavy materi\u00e1lu pri menovitom kr\u00fatiacom momente aj kontrolu statick\u00e9ho ohybu pri \u0161pi\u010dke zmrazenej n\u00e1plne.<\/p>\n

Odosla\u0165 dopyt oh\u013eadom mix\u00e9ra<\/a>
\nSortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a><\/div>\n

M8\u2013M50 \u00b7 42CrMo4 indukcia \u00b7 17CrNiMo6 cement\u00e1cia \u00b7 KA 2,5\u20134,0 \u00b7 Statick\u00e1 kontrola ohybom \u00b7 Pre\u017eitie zamrznutej n\u00e1boje \u00b7 Minim\u00e1lne objedn\u00e1vacie mno\u017estvo 1 kus<\/p>\n<\/div>\n

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

Helical Gears for Rubber Mixer and Extruder Gearboxes \u2014 High-Torque, Low-Speed Drive Design The helical gear drives inside rubber mixer and plastic extruder gearboxes are among the highest-torque applications in industrial gear manufacturing: output torques of 50,000\u2013500,000 N\u00b7m at output speeds of 10\u201330 RPM, combined with frozen-charge restart loads that can reach 400\u2013500% of rated […]<\/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":[3082],"tags":[],"class_list":["post-2388","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/comments?post=2388"}],"version-history":[{"count":3,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2388\/revisions"}],"predecessor-version":[{"id":2392,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2388\/revisions\/2392"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/media?parent=2388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/categories?post=2388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/tags?post=2388"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}