{"id":8921,"date":"2024-08-28T07:04:57","date_gmt":"2024-08-28T07:04:57","guid":{"rendered":"https:\/\/www.hndfcrane.com\/?post_type=posts&#038;p=8921"},"modified":"2024-09-27T03:41:33","modified_gmt":"2024-09-27T03:41:33","slug":"4-hydraulic-grabs-failures-you-must-know","status":"publish","type":"posts","link":"https:\/\/www.hndfcrane.com\/cs\/posts\/4-hydraulic-grabs-failures-you-must-know\/","title":{"rendered":"4 Zni\u010duj\u00edc\u00ed selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f, kter\u00e9 mus\u00edte v\u011bd\u011bt"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Obsah<\/p><nav><ul><li><a href=\"#hydraulic-grabs-failure-1-air-enters-the-hydraulic-system\">Selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f 1: Do hydraulick\u00e9ho syst\u00e9mu se dost\u00e1v\u00e1 vzduch<\/a><\/li><li><a href=\"#hydraulic-grabs-failure-2-\uff1a-hydraulic-system-pollution\">Selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f 2: Zne\u010di\u0161t\u011bn\u00ed hydraulick\u00e9ho syst\u00e9mu<\/a><\/li><li><a href=\"#hydraulic-grabs-failure-3-\uff1a-hydraulic-system-oil-leakage\">Selh\u00e1n\u00ed hydraulick\u00e9ho drap\u00e1ku 3: \u00danik oleje z hydraulick\u00e9ho syst\u00e9mu<\/a><ul><li><a href=\"#four-leakage-methods-of-hydraulic-system\">\u010cty\u0159i zp\u016fsoby \u00faniku hydraulick\u00e9ho syst\u00e9mu<\/a><\/li><\/ul><\/li><li><a href=\"#hydraulic-grabs-failure-4-hydraulic-oil-overheating\">Selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f 4: P\u0159eh\u0159\u00e1t\u00ed hydraulick\u00e9ho oleje<\/a><\/li><\/ul><\/nav><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1701\" height=\"1241\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/4-Hydraulic-Grabs-Failures.jpg\" alt=\"\" class=\"wp-image-8929\" srcset=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/4-Hydraulic-Grabs-Failures.jpg 1701w, https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/4-Hydraulic-Grabs-Failures-1536x1121.jpg 1536w\" sizes=\"(max-width: 1701px) 100vw, 1701px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-align-left\">\u00dadr\u017eba<a href=\"https:\/\/www.hndfcrane.com\/cs\/electro-hydraulic-orange-peel-grabs\/\"> hydraulick\u00e9 drap\u00e1ky<\/a> u je\u0159\u00e1b\u016f je z\u00e1sadn\u00ed pro zaji\u0161t\u011bn\u00ed jejich norm\u00e1ln\u00edho provozu a prodlou\u017een\u00ed \u017eivotnosti za\u0159\u00edzen\u00ed. Hydraulick\u00e9 drap\u00e1ky jsou p\u0159i pr\u00e1ci \u010dasto n\u00e1chyln\u00e9 k r\u016fzn\u00fdm poruch\u00e1m. V\u011bt\u0161ina poruch hydraulick\u00fdch drap\u00e1k\u016f b\u011b\u017en\u00fdch hydraulick\u00fdch syst\u00e9m\u016f je\u0159\u00e1b\u016f v za\u0159\u00edzen\u00ed je zp\u016fsobena p\u0159eh\u0159\u00e1t\u00edm hydraulick\u00e9ho oleje, nas\u00e1v\u00e1n\u00edm vzduchu, zne\u010di\u0161t\u011bn\u00edm a \u00fanikem oleje. V d\u016fsledku poruchy hydraulick\u00e9ho syst\u00e9mu povede porucha hlavn\u00edho syst\u00e9mu p\u0159\u00edmo k selh\u00e1n\u00ed hlavn\u00edho syst\u00e9mu, co\u017e m\u00e1 za n\u00e1sledek v\u00e1\u017en\u011bj\u0161\u00ed ekonomick\u00e9 ztr\u00e1ty. Proto je d\u016fle\u017eit\u00e9 analyzovat p\u0159\u00ed\u010diny t\u011bchto poruch hydraulick\u00fdch drap\u00e1k\u016f a p\u0159ijmout odpov\u00eddaj\u00edc\u00ed preventivn\u00ed opat\u0159en\u00ed. Tento \u010dl\u00e1nek podrobn\u011b p\u0159edstav\u00ed 4 b\u011b\u017en\u00e9 poruchy a zp\u016fsoby jejich opravy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hydraulic-grabs-failure-1-air-enters-the-hydraulic-system\">Selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f 1: Do hydraulick\u00e9ho syst\u00e9mu se dost\u00e1v\u00e1 vzduch<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"965\" height=\"490\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/AIR-1.jpg\" alt=\"\" class=\"wp-image-8924\"\/><\/figure>\n\n\n\n<p><strong>Zp\u016fsobit hydraulick\u00e9 drap\u00e1ky<\/strong> <strong>selh\u00e1n\u00ed: <\/strong><\/p>\n\n\n\n<ul>\n<li>Poloha p\u00edstu hydraulick\u00e9ho drap\u00e1ku v\u00e1lce.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Hydraulick\u00fd v\u00e1lec hydraulick\u00fdch drap\u00e1k\u016f vibruje nebo dokonce vyd\u00e1v\u00e1 abnorm\u00e1ln\u00ed zvuky.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Hydraulick\u00fd v\u00e1lec hydraulick\u00fdch drap\u00e1k\u016f vytv\u00e1\u0159\u00ed m\u00edstn\u00ed nap\u011bt\u00ed a sp\u00e9k\u00e1n\u00ed.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>V d\u016fsledku toho st\u0159edov\u00e1 osa hydraulick\u00e9ho v\u00e1lce hydraulick\u00fdch drap\u00e1k\u016f nen\u00ed rovnob\u011b\u017en\u00e1 s vodic\u00ed kolejnic\u00ed vod\u00edc\u00edho pouzdra a je ze\u0161ikmen\u00e1.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Objemov\u00e1 \u00fa\u010dinnost hydraulick\u00e9ho \u010derpadla hydraulick\u00fdch drap\u00e1k\u016f se sni\u017euje, energetick\u00e9 ztr\u00e1ty se zvy\u0161uj\u00ed a hydraulick\u00fd syst\u00e9m nem\u016f\u017ee uplatnit svou pat\u0159i\u010dnou \u00fa\u010dinnost.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Tepeln\u00e1 vodivost hydraulick\u00e9ho oleje v hydraulick\u00e9m v\u00e1lci hydraulick\u00fdch drap\u00e1k\u016f se zhor\u0161uje a teplota oleje stoup\u00e1, co\u017e zp\u016fsobuje chemick\u00e9 zm\u011bny.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-table alignleft is-style-regular\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>D\u016fvod<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u0158e\u0161en\u00ed<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Vzduch je vdechov\u00e1n v d\u016fsledku uvoln\u011bn\u00fdch spoj\u016f nebo po\u0161kozen\u00ed olejov\u00fdch t\u011bsn\u011bn\u00ed a t\u011bsnic\u00edch krou\u017ek\u016f.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ka\u017ed\u00fd spoj by m\u011bl b\u00fdt pevn\u011b p\u0159ipevn\u011bn a zajistit, aby byla palivov\u00e1 n\u00e1dr\u017e dob\u0159e ut\u011bsn\u011bna, aby se zabr\u00e1nilo vnik\u00e1n\u00ed vn\u011bj\u0161\u00edho vzduchu, zne\u010di\u0161t\u011bn\u00ed syst\u00e9mu a sou\u010dasn\u00e9mu ods\u00e1v\u00e1n\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Potrub\u00ed absorbuj\u00edc\u00ed olej a potrub\u00ed spojuj\u00edc\u00ed syst\u00e9m jsou opot\u0159ebovan\u00e9, po\u0161kr\u00e1ban\u00e9 nebo zkorodovan\u00e9, co\u017e zp\u016fsobuje vnik\u00e1n\u00ed vzduchu.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Rozumn\u011b navrhnout strukturu hydraulick\u00e9ho syst\u00e9mu pro racionalizaci uspo\u0159\u00e1d\u00e1n\u00ed potrub\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Vzduchov\u00e9 bubliny vznikl\u00e9 nepozornost\u00ed p\u0159i dopl\u0148ov\u00e1n\u00ed paliva jsou p\u0159iv\u00e1d\u011bny do palivov\u00e9 n\u00e1dr\u017ee a p\u0159im\u00edch\u00e1v\u00e1ny do syst\u00e9mu.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pro udr\u017een\u00ed \u010distoty potrub\u00ed a sn\u00ed\u017een\u00ed vn\u011bj\u0161\u00ed koroze je nutn\u00e1 \u00faprava v\u00fdfukov\u00fdch plyn\u016f.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">V hydraulick\u00e9m v\u00e1lci se m\u00eds\u00ed ciz\u00ed p\u0159edm\u011bty a vlhkost, co\u017e m\u00e1 za n\u00e1sledek m\u00edstn\u00ed nap\u011bt\u00ed a sp\u00e9k\u00e1n\u00ed.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vnit\u0159n\u00ed st\u011bnu v\u00e1lce je pot\u0159eba vyle\u0161tit a naj\u00edt p\u0159\u00ed\u010dinu m\u00edch\u00e1n\u00ed ciz\u00edch l\u00e1tek.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Nespr\u00e1vn\u00e1 instalace hydraulick\u00e9ho v\u00e1lce m\u00e1 za n\u00e1sledek, \u017ee st\u0159edov\u00e1 osa a vodic\u00ed li\u0161ta vod\u00edc\u00edho pouzdra nejsou rovnob\u011b\u017en\u00e9.<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;Nutno p\u0159einstalovat.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Sportovn\u00ed t\u011bsn\u011bn\u00ed je p\u0159\u00edli\u0161 t\u011bsn\u00e9.<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;Nutno upravit t\u011bsn\u011bn\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">P\u00edst a p\u00edstnice maj\u00ed r\u016fzn\u00e9 h\u0159\u00eddele.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nutno opravit podle n\u00e1vodu k instalaci.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Vodic\u00ed pouzdro a v\u00e1lec nejsou na stejn\u00e9 ose.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nutno opravit podle n\u00e1vodu k instalaci.&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">P\u00edstnice je ohnut\u00e1.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Chcete-li narovnat p\u00edstnici, mus\u00edte postupovat podle pokyn\u016f k instalaci. <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">V\u00e1lcov\u00fd stupe\u0148 vnit\u0159n\u00edho pr\u016fm\u011bru v\u00e1lce je extr\u00e9mn\u011b \u0161patn\u00fd.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pot\u0159eba vyvrtat a vybrousit v\u00e1lec, znovu sladit p\u00edst.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Kluzn\u00e1 plocha dosed\u00e1 p\u0159\u00edli\u0161 t\u011bsn\u011b nebo je povrch kart\u00e1\u010dovan\u00fd.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pot\u0159eba nabrousit kluznou plochu.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Pokud je t\u011bsn\u011bn\u00ed p\u00edstu po\u0161kozeno, olej ve vysokotlak\u00e9 komo\u0159e rychle st\u00e9k\u00e1 zp\u011bt do n\u00edzkotlak\u00e9 komory a vyd\u00e1v\u00e1 zvuk \u201ehu\u010den\u00ed\u201c.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Je t\u0159eba vym\u011bnit t\u011bsn\u011bn\u00ed p\u00edstu.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hydraulic-grabs-failure-2-\uff1a-hydraulic-system-pollution\">Selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f 2: Zne\u010di\u0161t\u011bn\u00ed hydraulick\u00e9ho syst\u00e9mu<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"965\" height=\"490\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/Hydraulic-system-pollution.jpg\" alt=\"\" class=\"wp-image-8926\"\/><\/figure>\n\n\n\n<p><strong>P\u0159\u00ed\u010dina selh\u00e1n\u00ed: <\/strong><\/p>\n\n\n\n<ul>\n<li>Zne\u010di\u0161\u0165uj\u00edc\u00ed l\u00e1tky ucp\u00e1vaj\u00ed hydraulick\u00e9 sou\u010d\u00e1sti hydraulick\u00fdch drap\u00e1k\u016f dovnit\u0159 a ven z oleje nebo do mezer mezi nimi, co\u017e zp\u016fsob\u00ed selh\u00e1n\u00ed pohybu, ovlivn\u00ed pracovn\u00ed v\u00fdkon nebo zp\u016fsob\u00ed nehody.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>M\u016f\u017ee tak\u00e9 zp\u016fsobit ucp\u00e1n\u00ed filtru a m\u016f\u017ee zp\u016fsobit, \u017ee filtr zcela ztrat\u00ed sv\u016fj filtra\u010dn\u00ed \u00fa\u010dinek, co\u017e zp\u016fsob\u00ed za\u010darovan\u00fd kruh hydraulick\u00e9ho syst\u00e9mu hydraulick\u00fdch drap\u00e1k\u016f.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Hydraulick\u00fd olej a voda hydraulick\u00fdch drap\u00e1k\u016f se m\u00eds\u00ed.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>D\u016fvod<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u0158e\u0161en\u00ed<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">V provozn\u00edm prost\u0159ed\u00ed je mnoho prachu a vn\u011bj\u0161\u00ed povrch syst\u00e9mu nen\u00ed \u010dist\u00fd.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pokud je hydraulick\u00fd syst\u00e9m del\u0161\u00ed dobu v provozu na m\u00edst\u011b se siln\u00fdm pra\u0161n\u00fdm zne\u010di\u0161t\u011bn\u00edm, zkuste jednou za 2 m\u011bs\u00edce p\u0159efiltrovat olej a p\u0159ibli\u017en\u011b za p\u016fl roku vym\u011b\u0148te vstupn\u00ed olejov\u00fd filtr.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Ne\u010distoty se do syst\u00e9mu dost\u00e1vaj\u00ed b\u011bhem dopl\u0148ov\u00e1n\u00ed paliva, kontroly povrchu oleje a operac\u00ed \u00fadr\u017eby.<\/td><td class=\"has-text-align-center\" data-align=\"center\">P\u0159i \u00fadr\u017eb\u011b dbejte na \u010distotu olejov\u00e9ho v\u00e1lce a sna\u017ete se ji prov\u00e1d\u011bt v bezpra\u0161n\u00e9m prost\u0159ed\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Pokud je teplota p\u0159\u00edli\u0161 vysok\u00e1, hydraulick\u00fd olej se znehodnot\u00ed. Pokud je teplota p\u0159\u00edli\u0161 vysok\u00e1, zrychl\u00ed se rychlost, p\u0159i kter\u00e9 se hydraulick\u00fd olej zhor\u0161\u00ed.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pokud k tomu dojde, elektrohydraulick\u00fd drap\u00e1k by m\u011bl b\u00fdt ochlazen.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Hydraulick\u00fd olej a voda se m\u00eds\u00ed, a pokud je v hydraulick\u00e9m syst\u00e9mu voda, dojde k tomuto jevu.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Je t\u0159eba zkontrolovat t\u011bsn\u011bn\u00ed hydraulick\u00e9ho syst\u00e9mu elektrohydraulick\u00e9ho drap\u00e1ku.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Pokud jsou v palivov\u00e9 n\u00e1dr\u017ei elektrohydraulick\u00e9ho drap\u00e1ku ne\u010distoty, dojde ke zne\u010di\u0161t\u011bn\u00ed hydraulick\u00e9ho oleje ne\u010distotami a k jeho znehodnocen\u00ed.<\/td><td class=\"has-text-align-center\" data-align=\"center\">V\u010das kontrolujte a udr\u017eujte \u010dist\u00e9 prost\u0159ed\u00ed v palivov\u00e9 n\u00e1dr\u017ei a pravideln\u011b kontrolujte.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hydraulic-grabs-failure-3-\uff1a-hydraulic-system-oil-leakage\">Selh\u00e1n\u00ed hydraulick\u00e9ho drap\u00e1ku 3: \u00danik oleje z hydraulick\u00e9ho syst\u00e9mu<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"965\" height=\"490\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/Hydraulic-system-oil-leakage.jpg\" alt=\"\" class=\"wp-image-8927\"\/><\/figure>\n\n\n\n<p><strong>P\u0159\u00ed\u010dina selh\u00e1n\u00ed: &nbsp;<\/strong><\/p>\n\n\n\n<ul>\n<li>Hydraulick\u00fd v\u00e1lec hydraulick\u00fdch drap\u00e1k\u016f se m\u016f\u017ee pohybovat, ale rychlost pohybu je p\u0159\u00edli\u0161 n\u00edzk\u00e1.&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Jakmile dojde k v\u00e1\u017en\u00e9mu \u00faniku v hydraulick\u00e9m syst\u00e9mu hydraulick\u00fdch drap\u00e1k\u016f, tlak v syst\u00e9mu bude nedostate\u010dn\u00fd, co\u017e zp\u016fsob\u00ed, \u017ee se lopata nebude norm\u00e1ln\u011b otev\u00edrat a zav\u00edrat.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u00danik hydraulick\u00e9ho oleje m\u016f\u017ee tak\u00e9 zp\u016fsobit zne\u010di\u0161t\u011bn\u00ed \u017eivotn\u00edho prost\u0159ed\u00ed, ovlivnit v\u00fdrobu a dokonce m\u00edt v\u00e1\u017en\u00e9 n\u00e1sledky, kter\u00e9 nelze odhadnout.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>D\u016fvod<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u0158e\u0161en\u00ed<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Brut\u00e1ln\u00ed chod hydraulick\u00fdch komponent\u016f v sestav\u011b, nadm\u011brn\u00e1 s\u00edla zdeformuje d\u00edly, zejm\u00e9na otlu\u010den\u00edm bloku v\u00e1lc\u016f a ut\u011bsn\u011bn\u00edm p\u0159\u00edruby m\u011bd\u011bn\u00fdmi ty\u010demi atd.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pln\u00e1 pozornost by m\u011bla b\u00fdt v\u011bnov\u00e1na n\u00e1vrhu a zpracov\u00e1n\u00ed t\u011bsn\u00edc\u00edch d\u00edl\u016f v konstruk\u010dn\u00edch a zpracovatelsk\u00fdch vazb\u00e1ch.<br>Chcete-li zvolit spr\u00e1vn\u00fd zp\u016fsob mont\u00e1\u017ee.&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">D\u00edly jsou po\u0161kozeny koliz\u00ed p\u0159i pr\u00e1ci, kter\u00e1 po\u0161kr\u00e1be t\u011bsnic\u00ed prvek a zp\u016fsob\u00ed net\u011bsnost.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vyberte si spr\u00e1vn\u00e9 t\u011bsn\u011bn\u00ed, abyste prodlou\u017eili dobu jeho st\u00e1rnut\u00ed.<br>V\u011bnujte pozornost ochran\u011b t\u011bsn\u011bn\u00ed, aby nedo\u0161lo k jeho po\u0161kr\u00e1b\u00e1n\u00ed jin\u00fdmi d\u00edly.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">V provozn\u00edm prost\u0159ed\u00ed je prach a ne\u010distoty a pokud nen\u00ed zvoleno vhodn\u00e9 prachot\u011bsn\u00e9 t\u011bsn\u011bn\u00ed, doch\u00e1z\u00ed k \u00faniku.<\/td><td class=\"has-text-align-center\" data-align=\"center\">P\u0159i v\u00fdb\u011bru a n\u00e1vrhu t\u011bsn\u011bn\u00ed zva\u017ete kompatibiln\u00ed typ hydraulick\u00e9ho oleje a t\u011bsn\u00edc\u00edho materi\u00e1lu, podm\u00ednky zat\u00ed\u017een\u00ed, pracovn\u00ed rychlost, zm\u011bny okoln\u00ed teploty atd. a zvolte vhodn\u00e1 t\u011bsn\u011bn\u00ed a vhodn\u00e1 t\u011bsn\u011bn\u00ed odoln\u00e1 proti prachu.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u010c\u00e1sti jsou zdeformovan\u00e9 nebo po\u0161kozen\u00e9.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nutno opravit nebo p\u0159\u00edmo vym\u011bnit.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">P\u0159\u00edvod oleje hydraulick\u00e9ho \u010derpadla je nedostate\u010dn\u00fd, co\u017e zp\u016fsobuje, \u017ee tlak nestoup\u00e1.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Odstra\u0148ov\u00e1n\u00ed z\u00e1vad hydraulick\u00e9ho \u010derpadla.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Zp\u016fsobeno nadm\u011brn\u00fdm \u00fanikem syst\u00e9mu.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Zkontrolujte t\u011bsnost ka\u017ed\u00e9 sou\u010d\u00e1sti a potrub\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Ve v\u00e1lci jsou dutiny ty\u010d\u00ed a dutiny bez p\u00edstnice, to znamen\u00e1, \u017ee \u010d\u00e1st tlakov\u00e9ho oleje ve vysokotlak\u00e9 komo\u0159e unik\u00e1 z t\u011bsn\u011bn\u00ed p\u00edstu do n\u00edzkotlak\u00e9 komory.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Je t\u0159eba vym\u011bnit sestavu t\u011bsn\u011bn\u00ed p\u00edstu.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">V\u00e1lec nebo p\u00edst olejov\u00e9ho v\u00e1lce je p\u0159\u00edli\u0161 opot\u0159ebovan\u00fd.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Je t\u0159eba zv\u00e1\u017eit, zda jej nabrousit nebo rovnou vym\u011bnit.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"four-leakage-methods-of-hydraulic-system\">\u010cty\u0159i zp\u016fsoby \u00faniku hydraulick\u00e9ho syst\u00e9mu<\/h3>\n\n\n\n<ul>\n<li><strong>\u00danik mezery<\/strong>\uff1aExistuj\u00ed dva hlavn\u00ed typy \u00faniku mezery v hydraulick\u00e9m syst\u00e9mu stavebn\u00edch stroj\u016f, \u00fanik na pevn\u00e9m t\u011bsn\u011bn\u00ed (statick\u00fd povrch spoje) a net\u011bsnost na pohybliv\u00e9m t\u011bsn\u011bn\u00ed (povrch dynamick\u00e9ho spoje). Mezi net\u011bsn\u00e9 \u010d\u00e1sti pevn\u00e9ho t\u011bsn\u011bn\u00ed pat\u0159\u00ed p\u0159edev\u0161\u00edm spoj mezi hlavou v\u00e1lce hydraulick\u00e9ho v\u00e1lce a v\u00e1lcem; pohybov\u00e9 t\u011bsn\u011bn\u00ed obsahuje hlavn\u011b p\u00edst hydraulick\u00e9ho v\u00e1lce a vnit\u0159n\u00ed st\u011bnu v\u00e1lce v\u00e1lce, mezi p\u00edstnic\u00ed a vodic\u00ed obj\u00edmkou hlavy v\u00e1lce. Velikost \u00faniku mezery souvis\u00ed s faktory, jako je tlakov\u00fd rozd\u00edl a mezera.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>Por\u00e9zn\u00ed \u00fanik<\/strong>\uff1aR\u016fzn\u00e9 kryc\u00ed desky v hydraulick\u00fdch sou\u010d\u00e1stech, kv\u016fli vlivu drsnosti povrchu nen\u00ed mo\u017en\u00e9 pln\u011b se dot\u00fdkat obou povrch\u016f. V mikroskopick\u00fdch prohlubn\u00edch, kde se dva povrchy nedot\u00fdkaj\u00ed, se tvo\u0159\u00ed mnoho dutin r\u016fzn\u00fdch tvar\u016f pr\u016f\u0159ezu a r\u016fzn\u00fdch velikost\u00ed. Velikost pr\u016f\u0159ezu dutin souvis\u00ed s drsnost\u00ed povrchu. Unik\u00e1 v\u00edce dutin a kapalina mus\u00ed prot\u00e9kat mnoha zak\u0159iven\u00fdmi dutinami. B\u011bhem testu t\u011bsn\u00edc\u00edho v\u00fdkonu trv\u00e1 ur\u010ditou dobu zdr\u017een\u00ed, ne\u017e m\u016f\u017ee b\u00fdt odhalena net\u011bsnost.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>\u00danik \u00faponu hlenu<\/strong>\uff1aMezi visk\u00f3zn\u00ed kapalinou a pevn\u00fdm ramenem existuje ur\u010dit\u00e1 adheze. Pot\u00e9, co se oba dostanou do kontaktu, na pevn\u00e9m povrchu p\u0159ilne tenk\u00e1 vrstva kapaliny. Pokud je film na pevn\u00e9m povrchu siln\u011bj\u0161\u00ed, dojde k se\u0161kr\u00e1bnut\u00ed olejov\u00e9ho filmu t\u011bsnic\u00edm krou\u017ekem v d\u016fsledku vz\u00e1jemn\u00e9ho pohybu. Net\u011bsnost adheze. Z\u00e1kladn\u00edm zp\u016fsobem, jak zabr\u00e1nit \u00faniku adheze, je kontrola tlou\u0161\u0165ky vrstvy adheze kapaliny.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>\u00danik proudu<\/strong>\uff1aPokud jsou na ut\u011bsn\u011bn\u00e9m povrchu rotuj\u00edc\u00edho h\u0159\u00eddele stopy po spir\u00e1lov\u00e9m zpracov\u00e1n\u00ed, kdy\u017e se h\u0159\u00eddel ot\u00e1\u010d\u00ed, kapalina proud\u00ed pod\u00e9l dr\u00e1\u017eky spir\u00e1lov\u00e9 stopy p\u016fsoben\u00edm rota\u010dn\u00ed s\u00edly rotuj\u00edc\u00edho h\u0159\u00eddele. Pokud je sm\u011br spir\u00e1lov\u00e9 dr\u00e1hy konzistentn\u00ed se sm\u011brem ot\u00e1\u010den\u00ed h\u0159\u00eddele, dojde k \u00faniku energie v d\u016fsledku \u00fa\u010dinku \u201e\u010derpadlov\u00e9ho oleje\u201c spir\u00e1lov\u00e9 dr\u00e1hy. Charakteristick\u00fdm rysem \u00faniku energie je, \u017ee \u010d\u00edm vy\u0161\u0161\u00ed je rychlost h\u0159\u00eddele, t\u00edm v\u011bt\u0161\u00ed je \u00fanik. Aby se zabr\u00e1nilo \u00faniku energie, je t\u0159eba se vyvarovat p\u0159\u00edtomnosti stop zpracov\u00e1n\u00ed \u201e\u010derpadlov\u00e9ho oleje\u201c na t\u011bsnic\u00edm povrchu h\u0159\u00eddele a b\u0159itu t\u011bsnic\u00edho krou\u017eku, nebo by se m\u011bl pou\u017e\u00edt princip \u00faniku energie a \u00fa\u010dinek \u010derp\u00e1n\u00ed oleje spir\u00e1lov\u00fdch stop by m\u011bl b\u00fdt pou\u017eit k \u010derp\u00e1n\u00ed unikl\u00e9ho oleje zp\u011bt, aby se zabr\u00e1nilo \u00faniku.<\/li>\n<\/ul>\n\n\n\n<p>Pokud jde o metodu \u00faniku, m\u016f\u017eete se dozv\u011bd\u011bt v\u00edce v tomto \u010dl\u00e1nku:<a href=\"https:\/\/vbn.aau.dk\/en\/publications\/leakage-and-its-effects-in-various-hydraulics-driven-system\" target=\"_blank\" rel=\"noopener\">\u00danik a jeho \u00fa\u010dinky v r\u016fzn\u00fdch hydraulicky poh\u00e1n\u011bn\u00fdch syst\u00e9mech<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hydraulic-grabs-failure-4-hydraulic-oil-overheating\">Selh\u00e1n\u00ed hydraulick\u00fdch drap\u00e1k\u016f 4: P\u0159eh\u0159\u00e1t\u00ed hydraulick\u00e9ho oleje<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"965\" height=\"490\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2024\/08\/Hydraulic-oil-overheating.jpg\" alt=\"\" class=\"wp-image-8928\"\/><\/figure>\n\n\n\n<p><strong>Zp\u016fsobit selh\u00e1n\u00ed<\/strong><\/p>\n\n\n\n<ul>\n<li>Viskozita hydraulick\u00e9ho oleje a pracovn\u00ed \u00fa\u010dinnost hydraulick\u00e9ho syst\u00e9mu se sn\u00ed\u017eily a dokonce ani stroje a za\u0159\u00edzen\u00ed nemohou v t\u011b\u017ek\u00fdch p\u0159\u00edpadech spr\u00e1vn\u011b fungovat.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>D\u016fvod<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u0158e\u0161en\u00ed<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Okoln\u00ed teplota je p\u0159\u00edli\u0161 vysok\u00e1 a vysok\u00e9 zat\u00ed\u017een\u00ed se pou\u017e\u00edv\u00e1 po dlouhou dobu, co\u017e zp\u016fsob\u00ed p\u0159\u00edli\u0161 vysokou teplotu oleje.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Je t\u0159eba se vyvarovat dlouhodob\u00e9ho nep\u0159etr\u017eit\u00e9ho provozu a vysok\u00e9ho zat\u00ed\u017een\u00ed. Pokud je teplota oleje p\u0159\u00edli\u0161 vysok\u00e1, za\u0159\u00edzen\u00ed m\u016f\u017ee b\u00fdt n\u011bjakou dobu provozov\u00e1no bez zat\u00ed\u017een\u00ed a pot\u00e9 pracovat po poklesu teploty oleje.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">V\u00fdkon odv\u00e1d\u011bn\u00ed tepla palivov\u00e9 n\u00e1dr\u017ee je \u0161patn\u00fd, co\u017e zp\u016fsobuje, \u017ee teplota oleje v palivov\u00e9 n\u00e1dr\u017ei je p\u0159\u00edli\u0161 vysok\u00e1.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Objem palivov\u00e9 n\u00e1dr\u017ee, tedy plocha pro odvod tepla, by se m\u011bl zv\u011bt\u0161it a m\u011blo by b\u00fdt instalov\u00e1no za\u0159\u00edzen\u00ed na chlazen\u00ed oleje.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Nespr\u00e1vn\u00fd v\u00fdb\u011br hydraulick\u00e9ho oleje, kvalita a stupe\u0148 viskozity oleje nespl\u0148uj\u00ed po\u017eadavky nebo sm\u00edch\u00e1n\u00ed r\u016fzn\u00fdch druh\u016f hydraulick\u00e9ho oleje zp\u016fsobuje p\u0159\u00edli\u0161 n\u00edzkou nebo p\u0159\u00edli\u0161 vysokou viskozitu hydraulick\u00e9ho oleje.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vyb\u00edrejte hydraulick\u00e9 oleje, kter\u00e9 spl\u0148uj\u00ed normy, a nem\u00edchejte dv\u011b zna\u010dky hydraulick\u00fdch olej\u016f.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Prost\u0159ed\u00ed staveni\u0161t\u011b je drsn\u00e9. Se zvy\u0161uj\u00edc\u00ed se pracovn\u00ed dobou drap\u00e1kov\u00e9ho je\u0159\u00e1bu se olej snadno m\u00eds\u00ed s ne\u010distotami a ne\u010distotami. Zne\u010di\u0161t\u011bn\u00fd hydraulick\u00fd olej se dostane do sp\u00e1ry \u010derpadla, motoru a ventilu, co\u017e po\u0161kr\u00e1be a zni\u010d\u00ed p\u0159esnost a drsnost spojovac\u00edho povrchu, co\u017e zp\u016fsob\u00ed zv\u00fd\u0161en\u00ed \u00faniku a zv\u00fd\u0161en\u00ed teploty oleje.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Drap\u00e1k pravideln\u011b repasujte, v\u010das vym\u011b\u0148te nov\u00fd hydraulick\u00fd olej a udr\u017eujte olej v hydraulick\u00e9m v\u00e1lci \u010dist\u00fd.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Pochopen\u00ed b\u011b\u017en\u00fdch poruch t\u011bchto 4 hydraulick\u00fdch drap\u00e1k\u016f v\u00e1m m\u016f\u017ee nejen pomoci rychle reagovat, kdy\u017e se vyskytnou probl\u00e9my, ale co je d\u016fle\u017eit\u011bj\u0161\u00ed, m\u016f\u017ee zajistit bezpe\u010dnost a efektivitu provozu. Pravidelnou \u00fadr\u017ebou a v\u010dasn\u00fdm \u0159e\u0161en\u00edm t\u011bchto probl\u00e9m\u016f m\u016f\u017eete prodlou\u017eit \u017eivotnost va\u0161eho za\u0159\u00edzen\u00ed, sn\u00ed\u017eit prostoje a zv\u00fd\u0161it produktivitu.<\/p>\n\n\n\n<p>Pokud se chcete dozv\u011bd\u011bt v\u00edce o tom, jak optimalizovat v\u00fdkon drap\u00e1kov\u00fdch je\u0159\u00e1b\u016f nebo pot\u0159ebujete profesion\u00e1ln\u00ed opravy a \u00fadr\u017ebu, okam\u017eit\u011b n\u00e1s kontaktujte. Dovolte n\u00e1m, abychom v\u00e1m pomohli udr\u017eet v\u00e1\u0161 nezbytn\u00fd dopln\u011bk v nejlep\u0161\u00edm stavu a zajistili hladk\u00fd chod va\u0161eho podnik\u00e1n\u00ed!<\/p>","protected":false},"excerpt":{"rendered":"\u00dadr\u017eba hydraulick\u00fdch drap\u00e1k\u016f pro je\u0159\u00e1by je nezbytn\u00e1 pro zaji\u0161t\u011bn\u00ed jejich norm\u00e1ln\u00edho provozu a prodlou\u017een\u00ed \u017eivotnosti za\u0159\u00edzen\u00ed. Hydraulick\u00e9 drap\u00e1ky jsou \u010dasto p\u0159i pr\u00e1ci n\u00e1chyln\u00e9 k r\u016fzn\u00fdm poruch\u00e1m.","protected":false},"featured_media":9531,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[197],"posts_tag":[14,166,168,42],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/8921"}],"collection":[{"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":18,"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/8921\/revisions"}],"predecessor-version":[{"id":9532,"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/8921\/revisions\/9532"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/media\/9531"}],"wp:attachment":[{"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/media?parent=8921"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/posts_category?post=8921"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=8921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}