Po\u013enohospod\u00e1rske prevodovky \u2192<\/a><\/h3>\nPravouhl\u00e9 skosen\u00e9 plo\u0161iny pre pomocn\u00e9 pohony pec\u00ed, dopravn\u00edkov\u00e9 syst\u00e9my cement\u00e1rn\u00ed a \u0165a\u017ek\u00e9 priemyseln\u00e9 manipula\u010dn\u00e9 zariadenia.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
<\/p>\n\n\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n
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Ako si ZR19 stoj\u00ed v porovnan\u00ed so ZR24 pri rovnakej aplik\u00e1cii?<\/h3>\n
ZR19 (skuto\u010dn\u00fd kr\u00fatiaci moment 20 600 Nm) a ZR24 (skuto\u010dn\u00fd kr\u00fatiaci moment 25 000 Nm) sa prekr\u00fdvaj\u00fa v rozsahu kr\u00fatiaceho momentu 17 000 \u2013 20 600 Nm. ZR19 pon\u00faka 47 prevodov\u00fdch stup\u0148ov s maxim\u00e1lnym pomerom 1 808:1, zatia\u013e \u010do ZR24 poskytuje 24 prevodov\u00fdch stup\u0148ov dosahuj\u00facich 4 347:1. Ak je po\u017eadovan\u00fd prevodov\u00fd pomer ni\u017e\u0161\u00ed ako 1 808, ZR19 pravdepodobne poskytne lep\u0161ie rie\u0161enie s kompaktnej\u0161\u00edm r\u00e1mom. Ak s\u00fa potrebn\u00e9 ultravysok\u00e9 prevodov\u00e9 pomery nad 1 808, ZR24 je jedinou mo\u017enos\u0165ou. Pre po\u017eiadavky na kr\u00fatiaci moment nad 20 600 Nm trval\u00e9ho v\u00fdkonu je ZR24 potrebn\u00fd bez oh\u013eadu na prevodov\u00fd pomer.<\/p>\n<\/div>\n
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Ko\u013eko jednotiek ZR19 je potrebn\u00fdch pre syst\u00e9m nat\u00e1\u010dania veternej turb\u00edny s v\u00fdkonom 2 MW?<\/h3>\n
Turb\u00edna s v\u00fdkonom 2 MW s priemerom rotora 80 \u2013 90 metrov zvy\u010dajne vy\u017eaduje celkov\u00fd kr\u00fatiaci moment gondoly 80 000 \u2013 120 000 Nm (vr\u00e1tane bezpe\u010dnostn\u00e9ho faktora proti b\u00farkov\u00e9mu za\u0165a\u017eeniu). Pri 20 600 Nm na jednotku to vy\u017eaduje 4 \u2013 6 pohonov ZR19 rovnomerne rozmiestnen\u00fdch okolo lo\u017eiska st\u00e1\u010dania. Presn\u00fd po\u010det z\u00e1vis\u00ed od bezpe\u010dnostn\u00e9ho faktora \u0161pecifikovan\u00e9ho v\u00fdrobcom turb\u00edny, triedy vetra na mieste (IEC I, II alebo III) a od toho, \u010di mus\u00ed syst\u00e9m st\u00e1\u010dania sp\u013a\u0148a\u0165 odolnos\u0165 vo\u010di b\u00farke bez brzdy st\u00e1\u010dania. Pre overen\u00e9 odpor\u00fa\u010danie poskytnite model turb\u00edny a \u00fadaje o vetre na mieste.<\/p>\n<\/div>\n
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Pre\u010do je ZR19 obmedzen\u00fd na 2 500 ot.\/min namiesto 3 500 ot.\/min ako men\u0161ie modely?<\/h3>\n
Vstupn\u00fd stupe\u0148 s ku\u017ee\u013eov\u00fdmi ozuben\u00fdmi kolesami ZR19 pou\u017e\u00edva ku\u017ee\u013eov\u00e9 ozuben\u00e9 koles\u00e1 s v\u00e4\u010d\u0161\u00edm priemerom ako ZR01-ZR16 na dosiahnutie vy\u0161\u0161ej kr\u00fatiacej sily. V\u00e4\u010d\u0161ie priemery ozuben\u00fdch kolies znamenaj\u00fa vy\u0161\u0161iu obvodov\u00fa r\u00fdchlos\u0165 v mieste z\u00e1beru zubov. Limit 2 500 ot.\/min zais\u0165uje, \u017ee obvodov\u00e1 r\u00fdchlos\u0165 ku\u017ee\u013eov\u00fdch zubov zostane v r\u00e1mci kon\u0161truk\u010dn\u00e9ho prahu pre prijate\u013en\u00fd hluk, tvorbu tepla a za\u0165a\u017eenie lo\u017eiska v stupni s ku\u017ee\u013eov\u00fdmi ozuben\u00fdmi kolesami. V praxi v\u00e4\u010d\u0161ina aplik\u00e1ci\u00ed ZR19 pou\u017e\u00edva 4-p\u00f3lov\u00e9 motory s ot\u00e1\u010dkami 1 450 \u2013 1 800 ot.\/min, \u010do je v\u00fdrazne pod limitom 2 500 ot.\/min.<\/p>\n<\/div>\n
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M\u00f4\u017ee sa ZR19 pou\u017ei\u0165 vo vn\u00fatri tunelov\u00e9ho raziaceho stroja, kde teploty presahuj\u00fa 40 \u00b0C?<\/h3>\n
\u00c1no. \u0160tandardn\u00fd prev\u00e1dzkov\u00fd rozsah je okolit\u00e1 teplota -40 a\u017e +80 \u00b0C. Vn\u00fatorn\u00e9 teploty krytu TBM zvy\u010dajne dosahuj\u00fa 35 \u2013 55 \u00b0C. Pri trvalej okolitej teplote nad 40 \u00b0C zn\u00ed\u017ete tepeln\u00fd v\u00fdkon (Pt) o 2% na stupe\u0148. Pre ZR19**4 pri okolitej teplote 50 \u00b0C sa efekt\u00edvna hodnota Pt(M) rovn\u00e1 pribli\u017ene 10,0 kW (oproti 12,5 kW pri 40 \u00b0C). Overte, \u010di vstupn\u00fd v\u00fdkon motora pri va\u0161om pracovnom cykle nepresahuje t\u00fato upraven\u00fa hodnotu. Ak \u00e1no, zadajte mo\u017enos\u0165 krytu chladen\u00e9ho ventil\u00e1torom alebo zv\u00fd\u0161te po\u010det stup\u0148ov (ni\u017e\u0161\u00ed Pt, ale kon\u0161tantn\u00fd kr\u00fatiaci moment).<\/p>\n<\/div>\n<\/div>\n<\/section>\n
<\/p>\n\nSp\u00e4tn\u00e1 v\u00e4zba od z\u00e1kazn\u00edkov<\/h2>\n\n
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L<\/div>\n
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Lars E. \u2014 Mana\u017e\u00e9r prev\u00e1dzky a \u00fadr\u017eby vetern\u00fdch turb\u00edn<\/div>\n
Overen\u00fd n\u00e1kup \u00b7 Jutsko, D\u00e1nsko \u00b7 febru\u00e1r 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n
V dvoch vetern\u00fdch farm\u00e1ch udr\u017eiavame 22 turb\u00edn a za posledn\u00fdch 18 mesiacov sme nahradili pohony st\u00e1\u010dania jednotkami ZR19**3. Dodato\u010dn\u00e1 mont\u00e1\u017e je jednoduch\u00e1 \u2013 mont\u00e1\u017ene rozhranie zodpoved\u00e1 rozlo\u017eeniu skrutiek OEM so \u0161tandardn\u00fdm adapt\u00e9rov\u00fdm kr\u00fa\u017ekom. V\u00fdkon pri zimnej prev\u00e1dzke pri teplote -22 \u00b0C bol spo\u013eahliv\u00fd so \u0161pecifik\u00e1ciou oleja VG 150. Na prv\u00e9 \u0161tyri v\u00fdmeny sme nain\u0161talovali vibra\u010dn\u00e9 senzory pod\u013ea manu\u00e1lu a zatia\u013e vyzeraj\u00fa trendy stabilne. Najv\u00e4\u010d\u0161ou praktickou v\u00fdhodou je jedno katal\u00f3gov\u00e9 \u010d\u00edslo pre v\u0161etk\u00fdch 22 turb\u00edn namiesto troch r\u00f4znych modelov OEM, ktor\u00e9 sme predt\u00fdm mali na sklade.<\/p>\n<\/div>\n
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C<\/div>\n
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Chen Y. \u2014 Projektov\u00fd mana\u017e\u00e9r TBM<\/div>\n
Overen\u00fd n\u00e1kup<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n
Pohon segmentov\u00e9ho erektora na projekte tunela metra. Jednotka pracovala vo vn\u00fatri \u0161t\u00edtu TBM 14 mesiacov pri priemernej teplote okolia pribli\u017ene 45 \u00b0C. Pri ka\u017edej v\u00fdmene oleja sme vykonali anal\u00fdzu oleja a po\u010det \u010dast\u00edc zostal po\u010das cel\u00e9ho obdobia v norm\u00e1lnych medziach. Tesnenie IP67 obst\u00e1lo v prostred\u00ed, kde sa v\u0161etko v priebehu nieko\u013ek\u00fdch dn\u00ed potiahne bentonitovou suspenziou. \u017diadne s\u0165a\u017enosti.<\/p>\n<\/div>\n
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Ja<\/div>\n
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Ivan P. \u2014 In\u017einier cement\u00e1rne<\/div>\n
Overen\u00fd n\u00e1kup \u00b7 apr\u00edl 2026<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n
Pohon rota\u010dn\u00e9ho nosn\u00e9ho valca pece, ZR19**5 s prevodov\u00fdm pomerom 973,56. Pohon nahradil re\u0165azovo-ozuben\u00e9 koleso, ktor\u00e9 vy\u017eadovalo napnutie ka\u017ed\u00e9 dva t\u00fd\u017edne v prostred\u00ed s prachom v peci. ZR19 be\u017e\u00ed u\u017e 10 mesiacov bez \u00fadr\u017eby, okrem pl\u00e1novanej v\u00fdmeny oleja. Jedno pozorovanie: jednotku sme dostali s namontovan\u00fdm odvzdu\u0161\u0148ovac\u00edm ventilom, ale bez \u00falo\u017en\u00fdch krytov VCI, tak\u017ee odkryt\u00e9 konce hriade\u013ea mali po troch mesiacoch v na\u0161om sklade pred in\u0161tal\u00e1ciou miernu povrchov\u00fa oxid\u00e1ciu. Vy\u010distilo sa bez probl\u00e9mov, ale lep\u0161ie balenie pre dlhodob\u00e9 skladovanie by bolo zlep\u0161en\u00edm.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"
Plan\u00e9tov\u00e1 prevodovka s oto\u010dn\u00fdm pohonom EP-ZR19 poskytuje trval\u00fd v\u00fdstupn\u00fd kr\u00fatiaci moment 20 600 Nm \u2013 o 251 TP3T viac ako s\u00e9riov\u00e1 prevodovka s 16 500 Nm \u2013 s maxim\u00e1lnou kapacitou 45 000 Nm naprie\u010d 47 prevodov\u00fdmi pomermi, ktor\u00e9 zah\u0155\u0148aj\u00fa 2-stup\u0148ov\u00fa a\u017e 5-stup\u0148ov\u00fa plan\u00e9tov\u00fa redukciu (13,29 a\u017e 1 808). Prevodovka ZR19, umiestnen\u00e1 medzi ZR16 (13 580 Nm) a ZR24 (21 000 Nm), sl\u00fa\u017ei pre syst\u00e9my nat\u00e1\u010dania vetern\u00fdch turb\u00edn s v\u00fdkonom megawattov, pomocn\u00e9 pohony tunelov\u00fdch raziacich strojov, polohova\u010de oto\u010dn\u00fdch stolov v \u0165a\u017ek\u00fdch priemyseln\u00fdch prev\u00e1dzkach a podporn\u00e9 mechanizmy ve\u013ek\u00fdch rota\u010dn\u00fdch pec\u00ed. Utesnen\u00e1 FKM pod\u013ea IP67, uzemnen\u00e1 pod\u013ea DIN 5-6, teleso z tv\u00e1rnej liatiny QT600-3 s teplotn\u00fdm rozsahom -40 a\u017e +80 \u00b0C.<\/div>","protected":false},"featured_media":876,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[967],"product_tag":[],"class_list":["post-875","product","type-product","status-publish","has-post-thumbnail","product_cat-slewing-drive-planetary-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product\/875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/comments?post=875"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/media\/876"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/media?parent=875"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product_brand?post=875"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product_cat?post=875"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/product_tag?post=875"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}