{"id":2402,"date":"2026-06-26T05:10:08","date_gmt":"2026-06-26T05:10:08","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2402"},"modified":"2026-06-26T05:10:08","modified_gmt":"2026-06-26T05:10:08","slug":"helical-gear-rolling-mill-pinion-stand","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/sk\/helical-gear-rolling-mill-pinion-stand\/","title":{"rendered":"\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koleso v stojanoch pastorkov valcovn\u00ed ocele \u2013 tlmi\u010d z\u00e1beru, lo\u017eisk\u00e1 olejov\u00e9ho filmu a ve\u013ek\u00fd modul"},"content":{"rendered":"
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\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koleso v stojanoch pastorkov valcovac\u00edch stol\u00edc ocele \u2013 tlmi\u010d z\u00e1beru, lo\u017eisk\u00e1 olejov\u00e9ho filmu a kon\u0161trukcia ve\u013ek\u00fdch modulov<\/h1>\n

Stojan pastorka je kon\u0161truk\u010dne najn\u00e1ro\u010dnej\u0161\u00ed \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> aplik\u00e1cia v oceliarskom priemysle \u2013 nie preto, \u017ee pren\u00e1\u0161a najvy\u0161\u0161\u00ed trval\u00fd kr\u00fatiaci moment, ale preto, \u017ee udalos\u0165 z\u00e1berov\u00e9ho r\u00e1zu pri vstupe hor\u00faceho oce\u013eov\u00e9ho bloku do valcovacej medzery generuje okam\u017eit\u00fd kr\u00fatiaci moment 150 \u2013 3001 TP3T menovit\u00e9ho valiv\u00e9ho kr\u00fatiaceho momentu, aplikovan\u00e9ho 60 \u2013 180-kr\u00e1t za hodinu v hrubovacom stolici. Kombin\u00e1cia z\u00e1berov\u00e9ho r\u00e1zu, za\u0165a\u017eenia lo\u017eiska olejov\u00e9ho filmu a modulu M25 \u2013 M50 pri \u0161\u00edrkach \u010dela do 800 mm rob\u00ed z pastorkov\u00e9ho stolice \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> jeden z naj\u0161pecializovanej\u0161\u00edch komponentov v \u0165a\u017ekom priemysle.<\/p>\n

Vy\u017eiada\u0165 si \u0161pecifik\u00e1ciu ozuben\u00e9ho kolesa stojana pastorka \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Architekt\u00fara stojanu pastorka \u2013 \u00fa\u010del a mechanick\u00e1 konfigur\u00e1cia<\/h2>\n

Pastorkov\u00fd stojan vo valcovni sl\u00fa\u017ei \u0161pecifick\u00e9mu \u00fa\u010delu, ktor\u00fd ho odli\u0161uje od \u0161tandardnej prevodovky s redukciou r\u00fdchlosti: m\u00e1 jeden vstupn\u00fd hriade\u013e motora a kr\u00fatiaci moment rovnomerne rozde\u013euje medzi dva v\u00fdstupn\u00e9 hriadele \u2013 vreten\u00e1 poh\u00e1\u0148aj\u00face horn\u00e9 a doln\u00e9 pracovn\u00e9 valce valcovacej stolice. Vo v\u00e4\u010d\u0161ine valcovn\u00ed na p\u00e1sy a plechy za tepla pracuje pastorkov\u00fd stojan s prevodov\u00fdm pomerom 1:1 \u2013 oba v\u00fdstupn\u00e9 hriadele sa ot\u00e1\u010daj\u00fa rovnakou r\u00fdchlos\u0165ou ako vstup, \u010d\u00edm sa udr\u017eiava synchronizovan\u00e1 r\u00fdchlos\u0165 povrchu valca. Zn\u00ed\u017eenie r\u00fdchlosti z ot\u00e1\u010dok motora na r\u00fdchlos\u0165 valcovania sa vykon\u00e1va samostatn\u00fdm hlavn\u00fdm reduktorom pohonu pred pastorkov\u00fdm stojanom.<\/p>\n

\n
Stojan s jedn\u00fdm pastorkom (najbe\u017enej\u0161\u00ed)<\/strong><\/p>\n

Jedno vstupn\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso (poh\u00e1\u0148an\u00e9 motorom cez hlavn\u00fd reduktor) zaber\u00e1 s dvoma identick\u00fdmi v\u00fdstupn\u00fdmi \u0161pir\u00e1lov\u00fdmi ozuben\u00fdmi kolesami rovnak\u00e9ho priemeru. Dve v\u00fdstupn\u00e9 ozuben\u00e9 koles\u00e1 poh\u00e1\u0148aj\u00fa horn\u00e9 a doln\u00e9 vreteno valca. Pomer 1:1 znamen\u00e1, \u017ee v\u0161etky tri ozuben\u00e9 koles\u00e1 v stojane pastorka maj\u00fa rovnak\u00fd po\u010det zubov \u2013 vstupn\u00e9 pastorkov\u00e9 koleso je umiestnen\u00e9 medzi dvoma v\u00fdstupn\u00fdmi ozuben\u00fdmi kolesami, zvy\u010dajne s rovnakou axi\u00e1lnou symetriou, aby sa vyv\u00e1\u017eilo za\u0165a\u017eenie lo\u017e\u00edsk.<\/p>\n<\/div>\n

Dvojpastorkov\u00fd stojan (ve\u013ek\u00e9 hrubovacie fr\u00e9zy)<\/strong><\/p>\n

Dva tandemov\u00e9 pastorkov\u00e9 stolice zapojen\u00e9 s\u00e9riovo, ka\u017ed\u00e1 s prevodov\u00fdm pomerom 1:1, umo\u017e\u0148uj\u00fa poh\u00e1\u0148a\u0165 valcovaciu stolicu so 4 v\u00fd\u0161kou (podporn\u00e9 valce + pracovn\u00e9 valce) z jedn\u00e9ho p\u00e1ru motorov. Dvojpastorkov\u00e1 stolica obsahuje \u0161tyri identick\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 a pred mont\u00e1\u017eou sa mus\u00ed overi\u0165 zhoda v\u00f4le medzi v\u0161etk\u00fdmi \u0161tyrmi \u2013 \u010do je zlo\u017eit\u00e1 po\u017eiadavka na zhodu podobn\u00e1 zhode dvojit\u00fdch \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies (\u010dl\u00e1nok 55).<\/p>\n<\/div>\n<\/div>\n

\u0160ok z uhryznutia \u2013 ur\u010duj\u00faca udalos\u0165 za\u0165a\u017eenia pre \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 s pastorkom<\/h2>\n

Najz\u00e1va\u017enej\u0161ia mechanick\u00e1 udalos\u0165 v pastorku valcovacej stolice nast\u00e1va, ke\u010f sa predn\u00e1 hrana hor\u00faceho oce\u013eov\u00e9ho predvalku, bramy alebo p\u00e1su prv\u00fdkr\u00e1t dotkne rotuj\u00facich pracovn\u00fdch valcov \u2013 udalos\u0165 \u201ez\u00e1beru\u201c. V momente z\u00e1beru sa mus\u00ed medzera valcov stla\u010di\u0165, aby sa za\u010dala plastick\u00e1 deform\u00e1cia obrobku, \u010do si vy\u017eaduje n\u00e1hle a ve\u013ek\u00e9 zv\u00fd\u0161enie kr\u00fatiaceho momentu valcov nad ust\u00e1len\u00fd kr\u00fatiaci moment:<\/p>\n

Faktor r\u00e1zov\u00e9ho momentu pri z\u00e1bere (pomer \u0161pi\u010dkov\u00e9ho a ust\u00e1len\u00e9ho kr\u00fatiaceho momentu):
\nHrubovacia stolica (prv\u00e9 zn\u00ed\u017eenie, hrub\u00e1 brama \u2265 100 mm): T_z\u00e1rez\/T_valcovanie = 1,8\u20133,0
\nStredn\u00fd porast (mierna redukcia): T_bite\/T_roll = 1,4\u20132,0
\nDokon\u010dovacia stolica (tenk\u00fd p\u00e1s, hladk\u00fd vstup): T_bite\/T_roll = 1,1\u20131,5<\/p>\n

Trvanie: typicky 0,05 \u2013 0,20 sekundy (\u010das, ktor\u00fd je potrebn\u00fd na prechod n\u00e1be\u017enej hrany cez
\nmedzera medzi valiv\u00fdmi bodmi a valiv\u00fd moment na stabiliz\u00e1ciu na ust\u00e1lenej hodnote valiv\u00e9ho momentu)
\nFrekvencia: 60 \u2013 180 z\u00e1berov za hodinu v nepretr\u017eite be\u017eiacej hrubovacej valcovni za tepla<\/p>\n

\u0160ok od z\u00e1beru sa pren\u00e1\u0161a priamo cez stojan pastorka \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> bez ak\u00e9hoko\u013evek mechanick\u00e9ho tlmenia \u2013 na rozdiel od pohonov mie\u0161a\u010diek gumy (Art64), kde kvapalinov\u00e1 spojka \u010diasto\u010dne obmedzuje \u0161pi\u010dku pri rozbehu, pastorkov\u00e9 stolice valcovn\u00ed maj\u00fa pevn\u00fd pohon od motora k valcom. Torzn\u00e1 dynamika pohonu medzi motorom a vretenom pracovn\u00e9ho valca premie\u0148a z\u00e1berov\u00fa udalos\u0165 na tlmen\u00fa oscil\u00e1ciu \u2013 \u0161pi\u010dka kr\u00fatiaceho momentu z\u00e1beru sa \u0161\u00edri sp\u00e4\u0165 cez vreteno, \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 pastorkov\u00e9ho stola, hlavn\u00fd reduktor a motor, \u010d\u00edm sa vyvol\u00e1vaj\u00fa torzn\u00e9 re\u017eimy cel\u00e9ho mechanick\u00e9ho syst\u00e9mu.<\/p>\n

Servisn\u00fd faktor pre kon\u0161trukciu \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa s pastorkom:<\/strong> Servisn\u00e9 faktory AGMA a ISO pou\u017e\u00edvan\u00e9 pre \u0161tandardn\u00e9 priemyseln\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> (KA = 1,25\u20132,50) nezachyt\u00e1vaj\u00fa dostato\u010dne dynamiku z\u00e1berov\u00fdch r\u00e1zov pre stolice pastorka valcovne. Normy pre ozuben\u00e9 koles\u00e1 valcovne (ISO 14521 a \u0161pecifik\u00e1cie OEM valcovne) pou\u017e\u00edvaj\u00fa \u201edynamick\u00fd faktor z\u00e1beru\u201c, ktor\u00fd kombinuje amplit\u00fadu z\u00e1berov\u00fdch r\u00e1zov s po\u010dtom z\u00e1berov za hodinu a torznou vlastnou frekvenciou ozuben\u00e9ho syst\u00e9mu \u2013 \u010d\u00edm sa vytv\u00e1ra efekt\u00edvny prev\u00e1dzkov\u00fd faktor KA_eff = 2,0\u20133,5 pre hrubovacie stolice v z\u00e1vislosti od konfigur\u00e1cie valcovne a sortimentu produktov. Spolo\u010dnos\u0165 Korea Ever-Power si pred potvrden\u00edm \u0161pecifik\u00e1cie \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa pastorka stolice vy\u017eiada konfigur\u00e1ciu valcovne, valcovac\u00ed pl\u00e1n a zn\u00e1me \u00fadaje o z\u00e1berovej sile.<\/div>\n

Lo\u017eisk\u00e1 s olejov\u00fdm filmom \u2013 pre\u010do menia \u0161pecifik\u00e1ciu \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa<\/h2>\n

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

Ve\u013ekomodulov\u00fd stojan pastorka \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u2014 M32, 42CrMo4 induk\u010dne kalen\u00e9, namontovan\u00e9 na lo\u017eisk\u00e1ch s olejov\u00fdm filmom (hydrodynamick\u00e9 puzdro). Puzdro pren\u00e1\u0161a cel\u00fa silu odde\u013eovania valcov (a\u017e do 5 000 \u2013 15 000 kN vo valcovac\u00edch valcoch hrub\u00fdch plechov) a mus\u00ed udr\u017eiava\u0165 integritu olejov\u00e9ho filmu pri v\u0161etk\u00fdch r\u00fdchlostiach valcovania vr\u00e1tane kr\u00e1tkeho obdobia n\u00edzkej r\u00fdchlosti na za\u010diatku a na konci ka\u017ed\u00e9ho valcovan\u00e9ho kusu<\/p>\n

Minim\u00e1lne obmedzenie r\u00fdchlosti z lo\u017e\u00edsk olejov\u00e9ho filmu<\/h3>\n

Lo\u017eisk\u00e1 s olejov\u00fdm filmom v lo\u017eisk\u00e1ch pastorka s\u00fa hydrodynamick\u00e9 \u2013 olejov\u00fd film sa vytv\u00e1ra ot\u00e1\u010dan\u00edm hriade\u013ea vo vn\u00fatri lo\u017eiska. Pod minim\u00e1lnou r\u00fdchlos\u0165ou na povrchu hriade\u013ea (typicky 0,3 \u2013 0,8 m\/s na \u010dape) sa olejov\u00fd film rozpadne a doch\u00e1dza ku kontaktu kovu s kovom v lo\u017eisku. Toto obmedzenie minim\u00e1lnej r\u00fdchlosti m\u00e1 priamy d\u00f4sledok pre stojan pastorka. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong>: valcov\u00e1 ...<\/p>\n

Rozlo\u017eenie za\u0165a\u017eenia lo\u017eiska a za\u0165a\u017eenie zubov ozuben\u00e9ho kolesa<\/h3>\n

Na rozdiel od valiv\u00fdch lo\u017e\u00edsk (ktor\u00e9 je mo\u017en\u00e9 predpn\u00fa\u0165 na nulov\u00fa v\u00f4\u013eu) maj\u00fa lo\u017eisk\u00e1 s olejov\u00fdm filmom kone\u010dn\u00fa v\u00f4\u013eu v chode (zvy\u010dajne 0,05 \u2013 0,20 mm radi\u00e1lne). T\u00e1to v\u00f4\u013ea znamen\u00e1, \u017ee vstupn\u00fd pastorok sa m\u00f4\u017ee v lo\u017eisku vych\u00fdli\u0165, \u010d\u00edm sa zmen\u00ed stredov\u00e1 vzdialenos\u0165 medzi vstupom a v\u00fdstupom. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> pri r\u00f4znych za\u0165a\u017eeniach v z\u00e1bere. Spolo\u010dnos\u0165 Korea Ever-Power \u0161pecifikuje vyklenutie zubov \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies stojana pastorka (C_\u03b2 = 20\u201350 \u00b5m, pozri \u010dl\u00e1nok 46) \u0161peci\u00e1lne na kompenz\u00e1ciu tohto od za\u0165a\u017eenia z\u00e1visl\u00e9ho vych\u00fdlenia hriade\u013ea v r\u00e1mci v\u00f4le puzdrov\u00e9ho lo\u017eiska \u2013 \u010d\u00edm sa zachov\u00e1 primeran\u00fd kontakt s \u010delnou plochou pri najv\u00e4\u010d\u0161om r\u00e1zovom za\u0165a\u017een\u00ed v z\u00e1bere bez koncentr\u00e1cie hr\u00e1n, ktor\u00e1 by sp\u00f4sobila pred\u010dasn\u00e9 stla\u010denie puzdra na koncoch \u010delnej plochy.<\/p>\n

V\u00fdber materi\u00e1lu a modulu pre \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 s pastorkom<\/h2>\n
\n\n\n\n\n\n\n\n\n
Typ mlyna<\/th>\nModul Mn<\/th>\n\u0160\u00edrka tv\u00e1re b<\/th>\nMateri\u00e1l<\/th>\nTepeln\u00e9 spracovanie<\/th>\nTypick\u00fd v\u00fdstupn\u00fd kr\u00fatiaci moment<\/th>\n<\/tr>\n<\/thead>\n
Stol pre dokon\u010dovanie hor\u00faceho p\u00e1sovania<\/td>\nM20\u2013M30<\/td>\n300 \u2013 500 mm<\/td>\n17CrNiMo6<\/td>\nCementovan\u00e9 HRC 58\u201362<\/td>\n500 000 \u2013 2 000 000 N\u00b7m na stojan<\/td>\n<\/tr>\n
Stol pre hrub\u00e9 obr\u00e1banie za tepla<\/td>\nM32\u2013M50<\/td>\n500 \u2013 800 mm<\/td>\n42CrMo4 alebo 17CrNiMo6<\/td>\nIndukcia HRC 50\u201355 alebo cement\u00e1cia<\/td>\n1 000 000 \u2013 5 000 000 N\u00b7m na stojan<\/td>\n<\/tr>\n
Doskov\u00e1 valcov\u0148a (jednostolicov\u00e1)<\/td>\nM40\u2013M60<\/td>\n600 \u2013 1 000 mm<\/td>\n42CrMo4<\/td>\nIndukcia HRC 50\u201355<\/td>\n2 000 000 \u2013 10 000 000 N\u00b7m<\/td>\n<\/tr>\n
Valcov\u00e1 linka na ty\u010de a ty\u010de (mal\u00e1 sekcia)<\/td>\nM16\u2013M24<\/td>\n200 \u2013 400 mm<\/td>\n17CrNiMo6<\/td>\nCementovan\u00e9 HRC 58\u201362<\/td>\n50 000 \u2013 500 000 N\u00b7m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Pre stojan pastorka doskov\u00e9ho mlyna \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> V M40\u2013M60 priemer polotovaru 1 500 \u2013 2 500 mm presahuje h\u013abku kalite\u013enosti akejko\u013evek cementovanej ocele \u2013 17CrNiMo6 spo\u013eahlivo cementuje cez profily a\u017e do priemeru pribli\u017ene 500 mm. Pri M50 so z = 25 je priemer rozstupu pribli\u017ene 1 330 mm a priemer polotovaru je pribli\u017ene 1 400 \u2013 1 500 mm. T\u00e1to ve\u013ekos\u0165 profilu vy\u017eaduje induk\u010dn\u00e9 kalenie 42CrMo4 (kalenie iba povrchu zuba, pri\u010dom jadro zost\u00e1va pri QT HB 280 \u2013 320) ako jedin\u00fd praktick\u00fd sp\u00f4sob tepeln\u00e9ho spracovania. Dosiahnut\u00e1 hodnota \u03c3_H lim (820 \u2013 950 MPa) je ni\u017e\u0161ia ako pri cement\u00e1cii (1 600 \u2013 1 800 MPa), ale statick\u00e1 pevnos\u0165 v ohybe pri r\u00e1zov\u00fdch momentoch pri z\u00e1beroch sa v skuto\u010dnosti lep\u0161ie udr\u017eiava, preto\u017ee tvrd\u0161ie jadro QT odol\u00e1va \u0161\u00edreniu trhl\u00edn z r\u00e1zov\u00fdch n\u00e1razov pri z\u00e1beroch \u00fa\u010dinnej\u0161ie ako cementovan\u00e9 puzdro s relat\u00edvne krehk\u00fdm povrchom s vysok\u00fdm obsahom uhl\u00edka.<\/p>\n

Univerz\u00e1lne pripojenie vretena \u2013 rozhranie medzi stojanom pastorka a pracovn\u00fdm valcom<\/h2>\n

V\u00fdstupn\u00e9 hriadele pastorkov\u00e9ho stojana s\u00fa pripojen\u00e9 k hrdl\u00e1m pracovn\u00fdch valcov prostredn\u00edctvom univerz\u00e1lnych vretien (naz\u00fdvan\u00fdch aj kardanov\u00e9 vreten\u00e1 alebo ozuben\u00e9 vreten\u00e1) \u2013 flexibiln\u00fdch spojok, ktor\u00e9 vyrovn\u00e1vaj\u00fa uhlov\u00e9 vych\u00fdlenie medzi osou v\u00fdstupn\u00e9ho hriade\u013ea pastorkov\u00e9ho stojana a osou hrdla valca, ktor\u00e9 sa men\u00ed so zmenou otvoru medzery valcov pre r\u00f4zne hr\u00fabky v\u00fdrobkov. Univerz\u00e1lne vreteno pren\u00e1\u0161a valcovac\u00ed kr\u00fatiaci moment aj r\u00e1zov\u00fd moment na pracovn\u00fd valec, pri\u010dom umo\u017e\u0148uje uhlov\u00fa v\u00fdchylku \u00b13\u201315\u00b0. Pastorkov\u00fd stojan dod\u00e1va spolo\u010dnos\u0165 Korea Ever-Power. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Nastavte rozmery a vy\u010distite rozmery pr\u00edrubov\u00e9ho pripojenia univerz\u00e1lneho vretena a pred v\u00fdrobou overte, \u010di s\u00fa priemer v\u00fdstupn\u00e9ho hriade\u013ea a rozte\u010d skrutiek pr\u00edruby kompatibiln\u00e9 so \u0161pecifik\u00e1ciou vretena z\u00e1kazn\u00edka.<\/p>\n

Korea Ever-Power \u2014 Dod\u00e1vka \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies pre stojan valcovne<\/h2>\n

\"V\u00fdroba<\/p>\n

V\u00fdroba a z\u00e1vere\u010dn\u00e1 kontrola pastorkov\u00e9ho stola valcovne spolo\u010dnos\u0165ou Korea Ever-Power \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u2014 M32, \u0161\u00edrka \u010dela 600 mm, induk\u010dne kalen\u00e1 oce\u013e 42CrMo4 HRC 52. Prev\u00e1dzkov\u00fd faktor r\u00e1zov\u00e9ho zahryznutia (KA_eff = 2,5 pre tento hrubovac\u00ed stojan) a zaoblenie st\u00fapania (C_\u03b2 = 35 \u00b5m pre kompenz\u00e1ciu priehybu klzn\u00e9ho lo\u017eiska) s\u00fa potvrden\u00e9 v dokument\u00e1cii objedn\u00e1vky.<\/p>\n

K\u00f3rejsk\u00e1 spolo\u010dnos\u0165 Ever-Power vyr\u00e1ba ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/strong> pre pastorkov\u00e9 stojany valcovn\u00ed od M16 do M50, \u0161\u00edrky \u010dela 200 \u2013 1 000 mm, z cementovanej ocele 17CrNiMo6 (M16 \u2013 M32) a induk\u010dne kalenej ocele 42CrMo4 (M32 \u2013 M50+). Prev\u00e1dzkov\u00fd faktor r\u00e1zov\u00e9ho za\u0165a\u017eenia pri z\u00e1bere, \u0161pecifik\u00e1cia zaoblenia st\u00fapania a statick\u00e1 kontrola ohybu pri \u0161pi\u010dkovom kr\u00fatiacom momente pri z\u00e1bere s\u00fa \u0161tandardne zahrnut\u00e9 v dokument\u00e1cii objedn\u00e1vky. Ako priamy v\u00fdrobca \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a>Spolo\u010dnos\u0165 Korea Ever-Power vyr\u00e1ba aj kompletn\u00fa p\u00e1rovan\u00fa sadu (vstupn\u00fd pastorok + dva v\u00fdstupn\u00e9 pastorky) s overen\u00fdmi meraniami analyz\u00e1tora ozuben\u00fdch kolies a potvrden\u00fdm p\u00e1rovan\u00edm medzi v\u0161etk\u00fdmi tromi ozuben\u00fdmi kolesami \u2013 \u010do je nevyhnutn\u00e9 pre vyv\u00e1\u017een\u00e9 rozdelenie z\u00e1\u0165a\u017ee. Prezrite si sortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a> pre valcovne a \u0165a\u017ek\u00e9 priemyseln\u00e9 aplik\u00e1cie.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
Pre\u010do sa v t\u00fdchto ve\u013emi ve\u013ek\u00fdch moduloch pou\u017e\u00edvaj\u00fa ozuben\u00e9 koles\u00e1 s ozuben\u00fdm kolesom s \u0161pir\u00e1lov\u00fdm ozuben\u00fdm kolesom namiesto \u010deln\u00fdch ozuben\u00fdch kolies?<\/strong><\/p>\n

Pri M32\u2013M50 a r\u00fdchlostiach valcovania 0,5\u201310 m\/s r\u00fdchlosti na \u010diare rozstupu by \u010deln\u00e9 ozuben\u00e9 koleso malo \u03b5_\u03b1 = 1,2\u20131,6 (prie\u010dny kontaktn\u00fd pomer) \u2013 \u010do znamen\u00e1, \u017ee ka\u017ed\u00fd p\u00e1r zubov kr\u00e1tkodobo pren\u00e1\u0161a pln\u00fd kr\u00fatiaci moment samostatne pri prechodoch medzi kontaktom jedn\u00e9ho p\u00e1ru a dvoch p\u00e1rov. Pre hrubovac\u00ed stolec pren\u00e1\u0161aj\u00faci 2 000 000 N\u00b7m s r\u00e1zom v z\u00e1bere pri 2,5-n\u00e1sobku menovit\u00e9ho v\u00fdkonu by okam\u017eit\u00e1 sila zubov pri kontakte jedn\u00e9ho p\u00e1ru bola obrovsk\u00e1. A \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> s \u03b2 = 15\u201320\u00b0 a \u0161\u00edrkou \u010dela 600 mm dosahuje \u03b5_\u03b2 = 1,0\u20131,3 okrem \u03b5_\u03b1, tak\u017ee \u017eiadny moment v cykle siete nie je pren\u00e1\u0161an\u00fd men\u0161\u00edm po\u010dtom ako ekvivalentom p\u00e1rov zubov \u03b5_\u03b1 + \u03b5_\u03b2 s\u00fa\u010dasne. Toto rozdelenie za\u0165a\u017eenia je d\u00f4vodom \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> nahradili \u010deln\u00e9 ozuben\u00e9 koles\u00e1 vo v\u0161etk\u00fdch modern\u00fdch stoliciach valcovn\u00ed: plynulej\u0161\u00ed prechod sily v\u00fdrazne zni\u017euje zosilnenie r\u00e1zov v z\u00e1bere a budenie torznou rezonanciou, ktor\u00e9 sp\u00f4sobuje po\u0161kodenie hnacieho \u00fastrojenstva.<\/p>\n<\/div>\n

Ak\u00e1 je typick\u00e1 \u017eivotnos\u0165 \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa pastorka valcovacej stolice?<\/strong><\/p>\n

Dobre \u0161pecifikovan\u00fd pastorok hrubovacieho stojana z induk\u010dne kalen\u00e9ho materi\u00e1lu 42CrMo4 (M40, HRC 52) pri kontinu\u00e1lnej v\u00fdrobe hor\u00faceho p\u00e1su pri 120 z\u00e1beroch za hodinu dosahuje pribli\u017ene 5 \u2013 10 rokov prev\u00e1dzky, k\u00fdm si opotrebovanie alebo \u00fanava zubov vy\u017eaduje v\u00fdmenu. Prim\u00e1rnym mechanizmom opotrebenia je abraz\u00edvne opotrebenie sp\u00f4soben\u00e9 oxidov\u00fdmi okovinami a \u010dasticami okuje, ktor\u00e9 vstupuj\u00fa do telesa stojana pastorka (napriek utesnen\u00fdm teles\u00e1m) a kontaminuj\u00fa prevodov\u00fd olej. Cementovan\u00fd pastorok 17CrNiMo6 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> (v men\u0161\u00edch moduloch M16\u2013M24 pre dokon\u010dovacie stolice) zvy\u010dajne dosahuj\u00fa 8\u201315 rokov prev\u00e1dzky pri spr\u00e1vnom mazan\u00ed. Dominantn\u00fdm mechanizmom \u00fanavy je po\u0161kodenie n\u00e1razom od z\u00e1beru (\u00fanava od ohybu kore\u0148a zuba v d\u00f4sledku cyklick\u00e9ho pre\u0165a\u017eenia) a nie Hertzova kontaktn\u00e1 \u00fanava \u2013 preto je pastorkov\u00fd stojan riaden\u00fd statickou ohybovou kontrolou pri kr\u00fatiacom momente z\u00e1beru. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u0161pecifik\u00e1cia viac ako kontrola \u00fanavov\u00e9ho kontaktn\u00e9ho nap\u00e4tia pri menovitom valivom kr\u00fatiacom momente.<\/p>\n<\/div>\n

M\u00f4\u017eu by\u0165 tri ozuben\u00e9 koles\u00e1 v stojane s pastorkom (vstupn\u00e9 pastorok + dva v\u00fdstupn\u00e9 ozuben\u00e9 koles\u00e1) dodan\u00e9 ako p\u00e1rovan\u00e1 sada a pre\u010do je na p\u00e1rovan\u00ed d\u00f4le\u017eit\u00e9?<\/strong><\/p>\n

\u00c1no \u2014 Korea Ever-Power dod\u00e1va stojan s pastorkom \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> s\u00fapravy (v\u0161etky tri alebo \u0161tyri ozuben\u00e9 koles\u00e1) ako zos\u00faladen\u00e1 s\u00faprava s potvrdenou kontinuitou rozstupu medzi v\u0161etk\u00fdmi z\u00e1bermi. Zhoda je d\u00f4le\u017eit\u00e1, preto\u017ee: (1) ak maj\u00fa dva v\u00fdstupn\u00e9 ozuben\u00e9 koles\u00e1 mierne odli\u0161n\u00e9 chyby rozstupu vzh\u013eadom na vstupn\u00fd pastorok, jeden valec sa ot\u00e1\u010da zlomkovo r\u00fdchlej\u0161ie ako druh\u00fd \u2013 \u010do sp\u00f4sobuje skr\u00fatenie valcov, ktor\u00e9 skr\u00faca obrobok vo valcovacej medzere a vytv\u00e1ra tvarov\u00fa chybu; (2) dva v\u00fdstupn\u00e9 ozuben\u00e9 koles\u00e1 musia ma\u0165 zhodn\u00fa hr\u00fabku zubov (rovnak\u00fa v\u00f4\u013eu ako vstupn\u00fd pastorok), aby sa zabezpe\u010dilo rovnomern\u00e9 rozlo\u017eenie kr\u00fatiaceho momentu \u2013 nezhodn\u00e1 s\u00faprava pren\u00e1\u0161a proporcion\u00e1lne v\u00e4\u010d\u0161\u00ed kr\u00fatiaci moment cez hustej\u0161\u00ed z\u00e1ber, \u010d\u00edm pre\u0165a\u017euje jeden ozuben\u00fd koleso. Spolo\u010dnos\u0165 Korea Ever-Power meria v\u0161etky ozuben\u00e9 koles\u00e1 v stojane na pastorok umiestnenom na rovnakom analyz\u00e1tore ozuben\u00fdch kolies a pred odoslan\u00edm dokumentuje f\u00e1zovanie rozstupu a v\u00f4\u013eu pre ka\u017ed\u00fd p\u00e1r.<\/p>\n<\/div>\n

Ak\u00fd olejov\u00fd syst\u00e9m pou\u017e\u00edva stojan pastorka valcovne a ak\u00fd je spr\u00e1vny druh oleja?<\/strong><\/p>\n

Pastorkov\u00e9 stolice valcovn\u00edc pou\u017e\u00edvaj\u00fa syst\u00e9m mazania s obehov\u00fdm olejom (nie rozstrekovan\u00edm ani olejov\u00fdm k\u00fape\u013eom) \u2013 olej sa \u010derp\u00e1 z centr\u00e1lnej n\u00e1dr\u017ee prietokom pribli\u017ene 3 \u2013 10 l\/min na z\u00e1ber ozuben\u00e9ho kolesa, filtruje sa na 10 \u2013 25 \u00b5m a vstrekuje sa cez trysky nasmerovan\u00e9 do vstupnej z\u00f3ny z\u00e1beru zubov. Ten ist\u00fd olejov\u00fd okruh zvy\u010dajne sl\u00fa\u017ei aj pre pastorkov\u00fd stojan. \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong>, spojky vretena a klzn\u00e9 lo\u017eisk\u00e1. Kvalita oleja: Miner\u00e1lny prevodov\u00fd olej ISO VG 220\u2013320 s pr\u00edsadami proti opotrebeniu a peneniu je \u0161tandardom pre v\u00e4\u010d\u0161inu aplik\u00e1ci\u00ed pastorkov valcovac\u00edch stol\u00edc. \u0164a\u017eko prev\u00e1dzkov\u00e9 formul\u00e1cie so zv\u00fd\u0161en\u00fdm bal\u00edkom proti opotrebeniu sa predpisuj\u00fa, ke\u010f valcov\u00e1 stolica spracov\u00e1va vysokopevnostn\u00e9 ocele (ktor\u00e9 generuj\u00fa vy\u0161\u0161ie r\u00e1zov\u00e9 \u0161pi\u010dky pri z\u00e1bere). D\u00f4le\u017eit\u00e1 je regul\u00e1cia teploty oleja \u2013 teplota oleja mus\u00ed by\u0165 nad 30 \u2013 35 \u00b0C pri filtri a \u010derpadle, aby sa udr\u017eal dostato\u010dn\u00fd prietok, ale pod 55 \u2013 60 \u00b0C pri z\u00e1bere ozuben\u00e9ho kolesa, aby sa udr\u017eala dostato\u010dn\u00e1 hr\u00fabka filmu EHL.<\/p>\n<\/div>\n

\n

Dopyt na stojan pastorka valcovne a s\u00fapravu ozuben\u00fdch kolies s \u0161pir\u00e1lov\u00fdm ozuben\u00fdm kolesom<\/h2>\n

Uve\u010fte typ valcovacej valcovacej valcovacej valcovej ...<\/p>\n

Vy\u017eiadajte si dopyt o prevodovke s pastorkom<\/a>
\nSortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a><\/div>\n

M16\u2013M50 \u00b7 P\u00e1rovan\u00e1 sada (3 alebo 4 prevody) \u00b7 42CrMo4 indukcia \u00b7 17CrNiMo6 cement\u00e1cia \u00b7 Tlmi\u010d z\u00e1beru KA_eff \u00b7 Oloven\u00e9 korunky \u00b7 MOQ 1 sada<\/p>\n<\/div>\n

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

\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koleso v oce\u013eov\u00fdch valcovniach Pastorkov\u00e9 stojany \u2013 r\u00e1zov\u00fd z\u00e1ber, lo\u017eisk\u00e1 olejov\u00e9ho filmu a kon\u0161trukcia ve\u013ek\u00fdch modulov Pastorkov\u00fd stojan je kon\u0161truk\u010dne najn\u00e1ro\u010dnej\u0161ou aplik\u00e1ciou \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa v oceliarskom priemysle \u2013 nie preto, \u017ee pren\u00e1\u0161a najvy\u0161\u0161\u00ed trval\u00fd kr\u00fatiaci moment, ale preto, \u017ee udalos\u0165 r\u00e1zov\u00e9ho z\u00e1beru, ke\u010f hor\u00faci oce\u013eov\u00fd blok vstupuje do [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[3082],"tags":[],"class_list":["post-2402","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2402","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=2402"}],"version-history":[{"count":2,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2402\/revisions"}],"predecessor-version":[{"id":2404,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2402\/revisions\/2404"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/media?parent=2402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/categories?post=2402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/tags?post=2402"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}