{"id":2700,"date":"2024-05-06T01:08:41","date_gmt":"2024-05-06T01:08:41","guid":{"rendered":"https:\/\/www.shen-chong.com\/?p=2700"},"modified":"2024-05-06T01:19:00","modified_gmt":"2024-05-06T01:19:00","slug":"introduction-to-plate-rolling-machine-faults","status":"publish","type":"post","link":"https:\/\/www.shen-chong.com\/cs\/introduction-to-plate-rolling-machine-faults\/","title":{"rendered":"\u00davod k poruch\u00e1m v\u00e1lcovac\u00edch stroj\u016f"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2700\" class=\"elementor elementor-2700\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-00819f2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"00819f2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a73c6a0\" data-id=\"a73c6a0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a9ea790 elementor-widget elementor-widget-heading\" data-id=\"a9ea790\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Definice a typy poruch v\u00e1lcovac\u00edch stroj\u016f<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0ed8006 elementor-widget elementor-widget-text-editor\" data-id=\"0ed8006\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Jev, kdy v\u00e1lcovac\u00ed stroj ztr\u00e1c\u00ed nebo sni\u017euje sv\u00e9 specifikovan\u00e9 funkce a nen\u00ed schopen spolehliv\u011b pokra\u010dovat v provozu b\u011bhem zapnut\u00ed, se obvykle naz\u00fdv\u00e1 porucha stroje. Po poru\u0161e v\u00e1lcovac\u00edho stroje jeho r\u016fzn\u00e9 technick\u00e9 ukazatele zjevn\u011b nemohou spl\u0148ovat b\u011b\u017en\u00e9 po\u017eadavky na oh\u00fdb\u00e1n\u00ed. Nap\u0159\u00edklad sn\u00ed\u017een\u00ed v\u00fdkonu hlavn\u00edho motoru, ztr\u00e1ta stabiln\u00edho provozu p\u0159evodov\u00e9ho syst\u00e9mu, zv\u00fd\u0161en\u00ed vibrac\u00ed a hluku stroje a zv\u00fd\u0161en\u00ed provozn\u00ed teploty jsou v\u0161e jevy poruch. Tento \u010dl\u00e1nek p\u0159edstavuje typy poruch v\u00e1lcovac\u00edch stroj\u016f, jejich \u0159e\u0161en\u00ed a nau\u010d\u00ed v\u00e1s, jak se t\u011bmto poruch\u00e1m vyhnout.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9eabf4e elementor-widget elementor-widget-heading\" data-id=\"9eabf4e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Definice poruch v\u00e1lcovac\u00edch stroj\u016f<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec50d34 elementor-widget elementor-widget-text-editor\" data-id=\"ec50d34\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Poruchy konstrukce v\u00e1lcovac\u00edho stroje jsou zp\u016fsobeny p\u0159edev\u0161\u00edm po\u0161kozen\u00edm sou\u010d\u00e1st\u00ed a naru\u0161en\u00edm mont\u00e1\u017en\u00edch vztah\u016f mezi nimi, jako je deformace, zlomen\u00ed, voln\u00e9 ulo\u017een\u00ed, uvoln\u011bn\u00ed a selh\u00e1n\u00ed upev\u0148ovac\u00edch prvk\u016f atd.<\/p><p>Z pohledu syst\u00e9mu maj\u00ed chyby dva v\u00fdznamy.<\/p><p>Zaprv\u00e9, odchylka syst\u00e9mu oh\u00fdba\u010dky plech\u016f od norm\u00e1ln\u00ed funkce, kter\u00e1 je zp\u016fsobena p\u0159edev\u0161\u00edm abnorm\u00e1ln\u00edmi provozn\u00edmi podm\u00ednkami (v\u010detn\u011b komponent) syst\u00e9mu v\u00e1lcovac\u00edho stroje. Norm\u00e1ln\u00ed funkci lze obnovit \u00fapravou parametr\u016f nebo opravou komponent.<\/p><p>Za druh\u00e9, funk\u010dn\u00ed selh\u00e1n\u00ed <a href=\"https:\/\/www.shen-chong.com\/cs\/plate-rolling-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>oh\u00fdbac\u00ed v\u00e1lec<\/b><\/strong><\/span><\/a>\u00a0je dal\u0161\u00ed situace, kter\u00e1 se t\u00fdk\u00e1 neust\u00e1l\u00e9 odchylky syst\u00e9mu od norm\u00e1ln\u00edch funkc\u00ed a jej\u00ed stupe\u0148 se neust\u00e1le zhor\u0161uje, co\u017e znemo\u017e\u0148uje zaru\u010den\u00ed z\u00e1kladn\u00edch funkc\u00ed za\u0159\u00edzen\u00ed v\u00e1lcovac\u00edho stroje (ozna\u010dov\u00e1no jako porucha). Obecnou poruchu komponenty lze vym\u011bnit, zat\u00edmco porucha kritick\u00e9 komponenty \u010dasto vede ke ztr\u00e1t\u011b celkov\u00e9 funk\u010dnosti.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64068ce elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"64068ce\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-divider{--divider-border-style:none;--divider-border-width:1px;--divider-color:#0c0d0e;--divider-icon-size:20px;--divider-element-spacing:10px;--divider-pattern-height:24px;--divider-pattern-size:20px;--divider-pattern-url:none;--divider-pattern-repeat:repeat-x}.elementor-widget-divider .elementor-divider{display:flex}.elementor-widget-divider .elementor-divider__text{font-size:15px;line-height:1;max-width:95%}.elementor-widget-divider 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.elementor-divider-separator:after,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:before,.elementor-widget-divider--separator-type-pattern:not([class*=elementor-widget-divider--view]) .elementor-divider-separator{width:100%;min-height:var(--divider-pattern-height);-webkit-mask-size:var(--divider-pattern-size) 100%;mask-size:var(--divider-pattern-size) 100%;-webkit-mask-repeat:var(--divider-pattern-repeat);mask-repeat:var(--divider-pattern-repeat);background-color:var(--divider-color);-webkit-mask-image:var(--divider-pattern-url);mask-image:var(--divider-pattern-url)}.elementor-widget-divider--no-spacing{--divider-pattern-size:auto}.elementor-widget-divider--bg-round{--divider-pattern-repeat:round}.rtl .elementor-widget-divider .elementor-divider__text{direction:rtl}.e-con-inner>.elementor-widget-divider,.e-con>.elementor-widget-divider{width:var(--container-widget-width,100%);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fd20313 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fd20313\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1c22d15\" data-id=\"1c22d15\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ae3ebde elementor-widget elementor-widget-heading\" data-id=\"ae3ebde\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Typy poruch<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b442ece elementor-widget elementor-widget-text-editor\" data-id=\"b442ece\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Poruchy lze rozd\u011blit do n\u00e1sleduj\u00edc\u00edch typ\u016f na z\u00e1klad\u011b jejich charakteristik a stavu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb1ebde elementor-widget elementor-widget-heading\" data-id=\"cb1ebde\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">D\u011bl\u00ed se podle doby v\u00fdskytu poruch na n\u00e1hl\u00e9 a postupn\u00e9 poruchy<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47b37a2 elementor-widget elementor-widget-text-editor\" data-id=\"47b37a2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>N\u00e1hl\u00e9 poruchy jsou poruchy zp\u016fsoben\u00e9 r\u016fzn\u00fdmi neo\u010dek\u00e1van\u00fdmi vnit\u0159n\u00edmi faktory, n\u00e1hodn\u00fdmi vn\u011bj\u0161\u00edmi vlivy nebo kloubov\u00fdmi efekty, kter\u00e9 se vyzna\u010duj\u00ed n\u00e1hodnost\u00ed. Pokud se b\u011bhem pracovn\u00edho procesu vyskytnou neo\u010dek\u00e1van\u00e9 faktory, jako je p\u0159et\u00ed\u017een\u00ed stroje a po\u0161kozen\u00ed sou\u010d\u00e1st\u00ed, nebo pokud je kr\u00e1\u010dec\u00ed mechanismus pneumatikov\u00e9ho typu prop\u00edchnut ostr\u00fdmi p\u0159edm\u011bty, tyto poruchy nesouvisej\u00ed s dobou pou\u017e\u00edv\u00e1n\u00ed a je obt\u00ed\u017en\u00e9 je p\u0159edv\u00eddat. N\u00e1hl\u00e9 poruchy se v\u0161ak obecn\u011b snadno \u0159e\u0161\u00ed a obvykle neovliv\u0148uj\u00ed \u017eivotnost v\u00e1lcovac\u00edho stroje.<\/p><p>Postupn\u00e9 selh\u00e1n\u00ed je postupn\u00fd v\u00fdvoj a vznik jev\u016f, jako je opot\u0159eben\u00ed, koroze, \u00fanava a st\u00e1rnut\u00ed, ke kter\u00fdm doch\u00e1z\u00ed b\u011bhem provozu sou\u010d\u00e1st\u00ed. Jeho charakteristick\u00fdm znakem je, \u017ee pravd\u011bpodobnost v\u00fdskytu souvis\u00ed s dobou pou\u017e\u00edv\u00e1n\u00ed a s postupuj\u00edc\u00edm \u010dasem se poruchov\u00fd jev postupn\u011b projevuje, zejm\u00e9na v pozd\u011bj\u0161\u00ed f\u00e1zi efektivn\u00ed \u017eivotnosti stroje. Jakmile dojde k postupn\u00e9mu selh\u00e1n\u00ed, znamen\u00e1 to, \u017ee je t\u0159eba za\u0159\u00edzen\u00ed v\u00e1lcovac\u00edho stroje opravit. Tento typ poruchy se vyv\u00edj\u00ed postupn\u011b a lze jej obecn\u011b p\u0159edv\u00eddat a i p\u0159edt\u00edm, ne\u017e dojde k \u00fapln\u00e9 poru\u0161e, lze p\u0159ijmout ur\u010dit\u00e9 pl\u00e1ny oprav k jej\u00edmu odstran\u011bn\u00ed.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d571ea elementor-widget elementor-widget-heading\" data-id=\"4d571ea\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">V\u00fdskyt poruch - skute\u010dn\u00e9 poruchy a potenci\u00e1ln\u00ed poruchy<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2c043f elementor-widget elementor-widget-text-editor\" data-id=\"f2c043f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Skute\u010dn\u00e1 porucha ozna\u010duje jev, kdy v\u00e1lcovac\u00ed stroj na plechy vykazuje b\u011bhem provozu v\u00fdznamn\u00e9 sn\u00ed\u017een\u00ed nebo \u00faplnou ztr\u00e1tu provozn\u00ed schopnosti. Skute\u010dn\u00e9 poruchy lze obecn\u011b ur\u010dit p\u0159\u00edm\u00fdm vn\u00edm\u00e1n\u00edm nebo m\u011b\u0159en\u00edm v\u00fdstupn\u00edch technick\u00fdch parametr\u016f obsluhou. Prostoje za\u0159\u00edzen\u00ed zp\u016fsoben\u00e9 po\u0161kozen\u00edm kritick\u00fdch sou\u010d\u00e1st\u00ed, nedodr\u017een\u00edm stanoven\u00fdch c\u00edl\u016f produktivity atd. jsou skute\u010dn\u00e9 poruchy, kter\u00e9 existuj\u00ed. V d\u016fsledku tohoto typu poruchy za\u0159\u00edzen\u00ed ztr\u00e1c\u00ed svou spr\u00e1vnou funkci, proto se \u010dasto ozna\u010duje jako funk\u010dn\u00ed porucha.<\/p><p>Potenci\u00e1ln\u00ed poruchy ozna\u010duj\u00ed postupn\u00e9 vymizen\u00ed norm\u00e1ln\u00edch funkc\u00ed stroje, ale dosud nedoch\u00e1z\u00ed k \u017e\u00e1dn\u00e9mu zjevn\u00e9mu projevu poruchy a \u00fazce souvis\u00ed s progresivn\u00edmi poruchami. Pokud lze tento stav diagnostikovat b\u011bhem postupn\u00e9ho vzniku poruchy, ani\u017e by se funkce za\u0159\u00edzen\u00ed ztratila, obecn\u011b se m\u00e1 za to, \u017ee se ve stroji nach\u00e1z\u00ed potenci\u00e1ln\u00ed porucha. Pokra\u010dov\u00e1n\u00ed potenci\u00e1ln\u00edch poruch nakonec povede k v\u00fdskytu skute\u010dn\u00fdch poruch. Proto by po identifikaci potenci\u00e1ln\u00edch poruch ve stroji m\u011blo b\u00fdt provedeno odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f d\u0159\u00edve, ne\u017e k nim dojde, aby se stroj udr\u017eel v dobr\u00e9m stavu a p\u0159ede\u0161lo se dal\u0161\u00edm n\u00e1sledk\u016fm, kter\u00e9 mohou v d\u016fsledku skute\u010dn\u00fdch poruch vzniknout. Tento pohled na \u0159e\u0161en\u00ed poruch je jedn\u00edm z d\u016fle\u017eit\u00fdch obsah\u016f a c\u00edl\u016f modern\u00ed teorie \u00fadr\u017eby v\u00e1lcovac\u00edch stroj\u016f.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55d1a10 elementor-widget elementor-widget-heading\" data-id=\"55d1a10\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">P\u0159\u00ed\u010dina poruchy - N\u00e1hodn\u00e1 porucha a p\u0159irozen\u00e1 porucha<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-592961e elementor-widget elementor-widget-text-editor\" data-id=\"592961e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>N\u00e1hodn\u00e9 poruchy jsou zp\u016fsobeny nedostate\u010dnou \u00fadr\u017ebou, nespr\u00e1vn\u00fdm se\u0159\u00edzen\u00edm b\u011bhem pou\u017e\u00edv\u00e1n\u00ed, poru\u0161en\u00edm provozn\u00edch postup\u016f nebo pou\u017eit\u00edm nekvalifikovan\u00fdch d\u00edl\u016f a materi\u00e1l\u016f b\u011bhem v\u00fdroby a oprav. N\u00e1hodn\u00e9 poruchy jsou \u010dasto zp\u016fsobeny lidsk\u00fdm faktorem, tak\u017ee pat\u0159\u00ed k lidsk\u00fdm selh\u00e1n\u00edm a je t\u0159eba jim p\u0159edch\u00e1zet zv\u00fd\u0161en\u00fdm \u00fasil\u00edm managementu.<\/p><p>P\u0159irozen\u00e9 poruchy jsou poruchy zp\u016fsoben\u00e9 r\u016fzn\u00fdmi p\u0159\u00edrodn\u00edmi faktory b\u011bhem pou\u017e\u00edv\u00e1n\u00ed stroje. Poruchy zp\u016fsoben\u00e9 po\u0161kozen\u00edm, jako je nadm\u011brn\u00e9 opot\u0159eben\u00ed, siln\u00e1 koroze a \u00fanavov\u00fd lom sou\u010d\u00e1st\u00ed, jsou v\u0161echny p\u0159irozen\u00e9 poruchy. Objektivn\u011b vzato, a\u010dkoli jsou p\u0159irozen\u00e9 poruchy nevyhnuteln\u00e9, pokud jsou pochopeny p\u0159\u00ed\u010diny a vzorce r\u016fzn\u00fdch forem po\u0161kozen\u00ed, jsou p\u0159ijata odpov\u00eddaj\u00edc\u00ed opat\u0159en\u00ed a je zlep\u0161ena \u00farove\u0148 \u00fadr\u017eby a \u0159\u00edzen\u00ed, lze prodlou\u017eit \u017eivotnost stroje a p\u0159edej\u00edt z\u00e1va\u017en\u00fdm nehod\u00e1m.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0604c6 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"a0604c6\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9074ede elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9074ede\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5a93ad0\" data-id=\"5a93ad0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ec7c8f2 elementor-widget elementor-widget-heading\" data-id=\"ec7c8f2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Charakteristika poruch a jejich \u0159e\u0161en\u00ed<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcd5e2c elementor-widget elementor-widget-text-editor\" data-id=\"bcd5e2c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Provozn\u00ed proces stroje je dynamick\u00fd proces. Z\u00e1rove\u0148 se projevy poruch v\u00e1lcovac\u00edch stroj\u016f li\u0161\u00ed u r\u016fzn\u00fdch za\u0159\u00edzen\u00ed v\u00e1lcovac\u00edch stroj\u016f. I u stejn\u00e9ho modelu v\u00e1lcovac\u00edch stroj\u016f se v d\u016fsledku rozd\u00edl\u016f v mont\u00e1\u017ei, instalaci, uveden\u00ed do provozu a provozn\u00edch podm\u00ednk\u00e1ch \u010dasto vyskytuj\u00ed r\u016fzn\u00e9 provozn\u00ed podm\u00ednky a formy poruch. Maj\u00ed v\u0161ak spole\u010dnou charakteristiku, a to, \u017ee v\u011bt\u0161ina poruch v\u00e1lcovac\u00edch stroj\u016f a syst\u00e9m\u016f m\u00e1 n\u00e1hodn\u00fd charakter. Z\u00e1kladn\u00edm v\u00fdchoz\u00edm bodem pro studium provozn\u00edho stavu a poruch syst\u00e9mu v\u00e1lcovac\u00edch stroj\u016f je tedy dodr\u017eov\u00e1n\u00ed z\u00e1kladn\u00edch princip\u016f stochastick\u00fdch proces\u016f.<\/p><p>Z\u00e1kladn\u00ed charakteristiky poruch v\u00e1lcovac\u00edho stroje a jeho syst\u00e9mu lze shrnout do dvou bod\u016f<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dfce93d elementor-widget elementor-widget-heading\" data-id=\"dfce93d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">N\u00e1hodnost v\u00fdskytu poruch<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d89ea12 elementor-widget elementor-widget-text-editor\" data-id=\"d89ea12\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>N\u00e1hodnost, o kter\u00e9 se zde hovo\u0159\u00ed, m\u00e1 dva v\u00fdznamy: zaprv\u00e9, pozorovan\u00e1 data v r\u016fzn\u00fdch \u010dasech jsou neopakovateln\u00e1, tj. aktu\u00e1ln\u00ed provozn\u00ed stav stroje se nezm\u011bnil nebo je stejn\u00fd jako v ur\u010dit\u00e9m \u010dase v minulosti a lze jej ch\u00e1pat pouze jako pozorovan\u00e9 hodnoty bez v\u00fdznamn\u00e9ho statistick\u00e9ho rozd\u00edlu; zadruh\u00e9, charakteristick\u00e9 hodnoty, kter\u00e9 charakterizuj\u00ed provozn\u00ed stav stroje, nejsou konstantn\u00ed, ale m\u011bn\u00ed se v ur\u010dit\u00e9m rozsahu.<\/p><p>Proto je nespolehliv\u00e9 p\u0159\u00edmo posoudit provozn\u00ed proces na z\u00e1klad\u011b ur\u010dit\u00fdch detek\u010dn\u00edch dat v re\u00e1ln\u00e9m pracovn\u00edm procesu. Data zji\u0161t\u011bn\u00e1 v r\u016fzn\u00fdch \u010dasech mohou b\u00fdt statisticky konzistentn\u00ed nebo se mohou v\u00fdznamn\u011b li\u0161it pouze za \u00fa\u010delem ur\u010den\u00ed skute\u010dn\u00e9ho provozn\u00edho stavu v\u00e1lcovac\u00edho stroje.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-785322a elementor-widget elementor-widget-heading\" data-id=\"785322a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">V\u00edce\u00farov\u0148ov\u00e1 povaha poruch za\u0159\u00edzen\u00ed ve v\u00e1lcovac\u00edm stroji<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bb14c5 elementor-widget elementor-widget-text-editor\" data-id=\"6bb14c5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>V\u00e1lcovac\u00ed stroj se obvykle skl\u00e1d\u00e1 ze stovek nebo tis\u00edc\u016f d\u00edl\u016f sestaven\u00fdch dohromady a spojen\u00ed mezi d\u00edly ur\u010duje v\u00edce\u00farov\u0148ovou povahu poruch v\u00e1lcovac\u00edch stroj\u016f. Porucha se \u010dasto skl\u00e1d\u00e1 z v\u00edce\u00farov\u0148ov\u00fdch p\u0159\u00ed\u010din a mezi poruchou a jevem neexistuje jednozna\u010dn\u00fd kauz\u00e1ln\u00ed vztah. Pokud je porucha posuzov\u00e1na pouze z jedn\u00e9 strany, je obt\u00ed\u017en\u00e9 \u010dinit spr\u00e1vn\u00e1 rozhodnut\u00ed.<\/p><p>Krom\u011b toho maj\u00ed poruchy v\u00e1lcovac\u00edch stroj\u016f tak\u00e9 charakteristiky, jako je n\u00e1hlost, p\u0159eru\u0161ovanost, pomalost a kontinuita.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b3bfff elementor-widget elementor-widget-heading\" data-id=\"8b3bfff\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Poruchy CNC 4v\u00e1lcov\u00e9ho a 3v\u00e1lcov\u00e9ho v\u00e1lcovac\u00edho stroje<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1eeca75 elementor-widget elementor-widget-text-editor\" data-id=\"1eeca75\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>R\u016fzn\u00e9 v\u00e1lcovac\u00ed stroje na plechy maj\u00ed r\u016fzn\u00e9 z\u00e1vady, proto\u017ee jejich konstrukce stroj\u016f nejsou stejn\u00e9. <a href=\"https:\/\/www.shen-chong.com\/cs\/4-roller-bending-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>CNC 4v\u00e1lcov\u00fd v\u00e1lcovac\u00ed stroj na plechy<\/b><\/strong><\/span><\/a>\u00a0Skl\u00e1d\u00e1 se z CNC \u0159\u00eddic\u00ed jednotky, hydraulick\u00e9ho syst\u00e9mu a mechanick\u00e9ho pohonu, tak\u017ee poruchy stroje mohou b\u00fdt zp\u016fsobeny t\u011bmito t\u0159emi \u010d\u00e1stmi.<\/p><p><a href=\"https:\/\/www.shen-chong.com\/cs\/3-roller-plate-bending-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>3v\u00e1lcov\u00fd v\u00e1lcovac\u00ed stroj na plechy<\/b><\/strong><\/span><\/a>\u00a0Zahrnuje mnoho r\u016fzn\u00fdch typ\u016f v\u00e1lcovac\u00edch stroj\u016f. Mechanick\u00fd symetrick\u00fd t\u0159\u00edv\u00e1lcov\u00fd v\u00e1lcovac\u00ed stroj SW11 a mechanick\u00fd t\u0159\u00edv\u00e1lcov\u00fd v\u00e1lcovac\u00ed stroj SW11X-B maj\u00ed pouze mechanickou \u010d\u00e1st, kter\u00e1 d\u00edky jednoduch\u00e9 konstrukci stroje umo\u017e\u0148uje snadn\u00e9 nalezen\u00ed z\u00e1vady. Univerz\u00e1ln\u00ed t\u0159\u00edv\u00e1lcov\u00fd v\u00e1lcovac\u00ed stroj na horn\u00ed plechy SW11SNC m\u00e1 NC \u0159\u00eddic\u00ed jednotku, mechanick\u00fd pohon a hydraulickou stanici, kter\u00e1 pot\u0159ebuje tyto \u010d\u00e1sti stroje kontrolovat.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5d6725 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"e5d6725\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fcc17b0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fcc17b0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3f6a975\" data-id=\"3f6a975\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c2f01ee elementor-widget elementor-widget-heading\" data-id=\"c2f01ee\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Z\u00e1v\u011br<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39659eb elementor-widget elementor-widget-text-editor\" data-id=\"39659eb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pokud v\u00e1lcovac\u00ed stroj ztrat\u00ed nebo omez\u00ed sv\u00e9 specifikovan\u00e9 funkce a nen\u00ed schopen spolehliv\u011b pokra\u010dovat v provozu b\u011bhem zapnut\u00ed, naz\u00fdv\u00e1 se to porucha stroje. Poruchy v\u00e1lcovac\u00edho stroje mohou b\u00fdt zp\u016fsobeny r\u016fzn\u00fdmi \u010d\u00e1stmi stroje a obsluha by m\u011bla stroj denn\u011b udr\u017eovat, aby se p\u0159ede\u0161lo poruch\u00e1m.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Definice a typy poruch v\u00e1lcovac\u00edch stroj\u016f Obvykle se jev, kdy v\u00e1lcovac\u00ed stroj ztr\u00e1c\u00ed nebo sni\u017euje sv\u00e9 specifikovan\u00e9 funkce a nen\u00ed schopen spolehliv\u011b pokra\u010dovat v provozu b\u011bhem zapnut\u00ed, naz\u00fdv\u00e1 poruchou stroje. Po poru\u0161e v\u00e1lcovac\u00edho stroje jeho r\u016fzn\u00e9 technick\u00e9 ukazatele zjevn\u011b nemohou spl\u0148ovat b\u011b\u017en\u00e9 po\u017eadavky na oh\u00fdb\u00e1n\u00ed. [\u2026]<\/p>","protected":false},"author":1,"featured_media":2701,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-events"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Introduction To\u00a0Plate\u00a0Rolling Machine Faults - SC Machinery<\/title>\n<meta name=\"description\" content=\"This article generally introduces the types of plate rolling machine faults, ways to solve the faults and teach you how to avoid the faults.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shen-chong.com\/cs\/introduction-to-plate-rolling-machine-faults\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction To\u00a0Plate\u00a0Rolling Machine Faults - 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