{"id":5319,"date":"2024-11-11T15:56:39","date_gmt":"2024-11-11T07:56:39","guid":{"rendered":"https:\/\/www.sevencrane.com\/?p=5319"},"modified":"2024-11-11T15:56:43","modified_gmt":"2024-11-11T07:56:43","slug":"causes-and-solutions-for-brake-failure-in-bridge-cranes","status":"publish","type":"post","link":"https:\/\/www.sevencrane.com\/hr\/causes-and-solutions-for-brake-failure-in-bridge-cranes\/","title":{"rendered":"Uzroci i rje\u0161enja za kvar ko\u010dnica u mosnim dizalicama"},"content":{"rendered":"<p>U industrijskim uvjetima, mosne dizalice povremeno do\u017eive kvar ko\u010dnica, \u0161to mo\u017ee dovesti do opasnog fenomena &quot;klizanja tereta&quot;. To se doga\u0111a kada operater dizalice prestane dizati ili spu\u0161tati teret, ali se teret nastavlja spu\u0161tati, \u010desto iznad dopu\u0161tene granice od v\/100 (gdje je v nazivna brzina dizanja). To predstavlja ozbiljne rizike ako teret sklizne skroz na tlo. Jo\u0161 jedan problem javlja se kada ko\u010dnica ne popusti, \u0161to ograni\u010dava mehanizam za podizanje, sprje\u010davaju\u0107i dizalicu da postigne svoj puni kapacitet podizanja.<\/p>\n\n\n\n<p><strong>Uzroci nepotpunog ko\u010denja<\/strong><\/p>\n\n\n\n<p>Nepotpuno ko\u010denje, koje omogu\u0107uje klizanje tereta, mo\u017ee proiza\u0107i iz nekoliko \u010dimbenika:<\/p>\n\n\n\n<ul>\n<li>Istro\u0161enost: \u010desta uporaba mo\u017ee uzrokovati habanje komponenti kao \u0161to su klinovi, rupice i ko\u010dione plo\u010dice, \u0161to dovodi do varijacija u polo\u017eaju poluge ko\u010dnice i smanjenog momenta ko\u010denja.<\/li>\n\n\n\n<li>Problemi s oprugama: Slabe ili neispravno pode\u0161ene glavne opruge smanjuju silu ko\u010denja, \u010desto zbog lo\u0161e kvalitete materijala ili zamora.<\/li>\n\n\n\n<li>Neuskla\u0111enost: radijalna neuskla\u0111enost kota\u010da ko\u010dnice mo\u017ee dovesti do ekscentri\u010dnosti, uzrokuju\u0107i smanjenje u\u010dinkovitosti ko\u010denja.<\/li>\n\n\n\n<li>Neravnomjeran razmak ko\u010dionih plo\u010dica: Neravnomjeran kontakt izme\u0111u ko\u010dionih plo\u010dica i ko\u010dionog kota\u010da smanjuje okretni moment, \u010desto zbog neto\u010dnosti ugradnje ili labavih vijaka.<\/li>\n\n\n\n<li>Sprije\u010dene ko\u010dnice s dugim hodom: Potporni materijal ispod protuutega mo\u017ee smanjiti moment ko\u010denja.<\/li>\n<\/ul>\n\n\n\n<p><strong>Rje\u0161enja za nepotpuno ko\u010denje<\/strong><\/p>\n\n\n\n<p>Za vra\u0107anje pouzdanog ko\u010denja preporu\u010duju se sljede\u0107i koraci:<\/p>\n\n\n\n<ul>\n<li>Zamijenite istro\u0161ene dijelove ko\u010dnice i uklonite sve zapreke.<\/li>\n\n\n\n<li>O\u010distite ko\u010dni kota\u010d i plo\u010dice kerozinom ili benzinom kako biste uklonili ne\u010disto\u0107e.<\/li>\n\n\n\n<li>Ponovno poravnajte ili zamijenite neporavnate kota\u010de ko\u010dnica.<\/li>\n\n\n\n<li>Podesite vijke i pomo\u0107ne opruge za ravnomjeran razmak jastu\u010di\u0107a.<\/li>\n\n\n\n<li>Ponovno instalirajte ko\u010dnice s precizno\u0161\u0107u kako biste osigurali pravilno poravnanje i uklonili dodatnu potporu ispod protuutega.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane.jpg\" alt=\"85t mostna dizalica\" class=\"wp-image-5104 lazyload\"\/><noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane.jpg\" alt=\"85t mostna dizalica\" class=\"wp-image-5104 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane.jpg 800w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane-300x225.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane-768x576.jpg 768w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane-16x12.jpg 16w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane-428x321.jpg 428w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane-345x258.jpg 345w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2024\/05\/28110643\/85t-overhead-crane-253x190.jpg 253w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/noscript><\/figure>\n\n\n\n<p><strong>Uzroci blokiranja ko\u010dnica<\/strong><\/p>\n\n\n\n<p>Kada ko\u010dnice ne otpuste, uobi\u010dajeni uzroci uklju\u010duju:<\/p>\n\n\n\n<ul>\n<li>Kvar elektromagneta: Odspojena zavojnica zaustavlja magnet, sprje\u010davaju\u0107i otpu\u0161tanje ko\u010dnice i rezultiraju\u0107i jakim zvukom motora.<\/li>\n\n\n\n<li>Savijene ko\u010dione \u0161ipke: Neuskla\u0111ene \u0161ipke mogu ometati kretanje, uzrokuju\u0107i da ko\u010dnica ostane zatvorena.<\/li>\n\n\n\n<li>Mehani\u010dke prepreke: Komponente u ko\u010dionom mehanizmu mogu zapeti, blokiraju\u0107i slobodno kretanje.<\/li>\n<\/ul>\n\n\n\n<p><strong>Rje\u0161enja za blokiranje ko\u010dnica<\/strong><\/p>\n\n\n\n<p>Za rje\u0161avanje problema s blokiranjem ko\u010dnice:<\/p>\n\n\n\n<ul>\n<li>Zamijenite ili ponovno spojite neispravne zavojnice.<\/li>\n\n\n\n<li>Ispravite ili zamijenite savijene \u0161ipke.<\/li>\n\n\n\n<li>Prepoznajte i uklonite prepreke kako biste osigurali nesmetan rad.<\/li>\n<\/ul>\n\n\n\n<p>Rje\u0161avanje ovih uobi\u010dajenih problema s ko\u010dnicama poma\u017ee pobolj\u0161ati sigurnost i u\u010dinkovitost <a href=\"https:\/\/www.sevencrane.com\/hr\/pro_cat\/overhead-crane\/\">mosne dizalice <\/a>operacije, minimiziraju\u0107i rizike u rukovanju materijalom.<\/p>","protected":false},"excerpt":{"rendered":"<p>U industrijskim uvjetima, mosne dizalice povremeno do\u017eive kvar ko\u010dnica, \u0161to mo\u017ee dovesti do opasnog fenomena &quot;klizanja tereta&quot;. To se doga\u0111a kada operater dizalice prestane dizati ili spu\u0161tati teret, ali se teret nastavlja spu\u0161tati, \u010desto iznad dopu\u0161tene granice od v\/100 (gdje je v nazivna brzina dizanja). To predstavlja ozbiljne rizike\u2026<\/p>","protected":false},"author":2,"featured_media":4264,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Causes and Solutions for Brake Failure in Bridge Cranes<\/title>\n<meta name=\"description\" content=\"In industrial settings, bridge cranes occasionally experience brake failures, which can lead to the dangerous phenomenon of \u201cload slipping.\u201d\" \/>\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.sevencrane.com\/hr\/causes-and-solutions-for-brake-failure-in-bridge-cranes\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" 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