{"id":1417,"date":"2019-10-17T18:26:26","date_gmt":"2019-10-17T10:26:26","guid":{"rendered":"https:\/\/www.sevencrane.com\/?p=1417"},"modified":"2022-11-22T17:45:09","modified_gmt":"2022-11-22T09:45:09","slug":"crane-rail-gnawing","status":"publish","type":"post","link":"https:\/\/www.sevencrane.com\/de\/crane-rail-gnawing\/","title":{"rendered":"SEVENCRANE l\u00f6st f\u00fcr Kunden das Problem des Schienennagens von Br\u00fcckenkranen\/Laufkranen"},"content":{"rendered":"<p>SEVENCRANE erhielt Anfragen zu den Kranr\u00e4dern und Kranschienen von Br\u00fcckenkranen\/Laufkranen. Der Kunde kaufte den Laufkran zuvor von einem anderen Lieferanten, stellte jedoch fest, dass die Kranschienen und R\u00e4der des Krans kurz nach dem Einsatz ernsthaft besch\u00e4digt waren, was die Produktion und den Einsatz beeintr\u00e4chtigte und einen gro\u00dfen Verlust verursachte. SEVENCRANE erl\u00e4uterte dem Kunden die Ursache des Schadens, nachdem es die tats\u00e4chliche Situation des Krans des Kunden kannte und untersuchte. Das Ph\u00e4nomen des Knabberns von Laufkranschienen ist zum Teil auf die schlechte Qualit\u00e4t und zum Teil auf die objektiven Faktoren einer unsachgem\u00e4\u00dfen Verwendung zur\u00fcckzuf\u00fchren.<\/p>\n\n\n\n<p>SEVENCRANE stellte unseren Kunden hochwertige Kranr\u00e4der und Kranschienen zur Verf\u00fcgung und schulte sie systematisch in der richtigen Verwendung und Wartung von Br\u00fcckenkranen. Viele Kunden dr\u00fcckten SEVENCRANE ihre Dankbarkeit und ihr Lob aus und unterzeichneten langfristige Kooperationsvertr\u00e4ge.<\/p>\n\n\n\n<p>Um Kunden dabei zu helfen, das Risiko von Ausfallzeiten aufgrund von Schienenfressern an Br\u00fcckenkr\u00e4nen zu verringern sowie Verluste und Wartungskosten zu reduzieren, hat SEVENCRANE speziell die Gr\u00fcnde f\u00fcr Schienenfresser an Br\u00fcckenkr\u00e4nen zusammengestellt, damit Kunden sie lesen und lernen k\u00f6nnen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Gr\u00fcnde f\u00fcr Schienenfresser bei Br\u00fcckenkr\u00e4nen<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane.jpg\" alt=\"Schienennagendes Problem des Br\u00fcckenkrans\" class=\"wp-image-3873 lazyload\"\/><noscript><img decoding=\"async\" width=\"722\" height=\"255\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane.jpg\" alt=\"Schienennagendes Problem des Br\u00fcckenkrans\" class=\"wp-image-3873 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane.jpg 722w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane-300x106.jpg 300w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/><\/noscript><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">1. Aufprall auf das Kranrad. <\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price.jpg\" alt=\"Komponenten des Br\u00fcckenkranpreises\" class=\"wp-image-3868 size-full lazyload\"\/><noscript><img decoding=\"async\" width=\"923\" height=\"756\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price.jpg\" alt=\"Komponenten des Br\u00fcckenkranpreises\" class=\"wp-image-3868 size-full lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price.jpg 923w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price-300x246.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price-768x629.jpg 768w\" sizes=\"(max-width: 923px) 100vw, 923px\" \/><\/noscript><\/figure><div class=\"wp-block-media-text__content\">\n<p>Erstens sind die Durchmesser der R\u00e4der auf beiden Seiten aufgrund von Herstellungsfehlern, ungleichm\u00e4\u00dfigem Verschlei\u00df und einseitigem Austausch w\u00e4hrend der Wartung ungleich. Bei gleicher Geschwindigkeit sind die Fahrten auf beiden Seiten ungleich, und die Seite mit dem gro\u00dfen Durchmesser bewegt sich allm\u00e4hlich vorw\u00e4rts, was zu einer Asynchronit\u00e4t f\u00fchrt, die dazu f\u00fchrt, dass der K\u00f6rper schief l\u00e4uft und an den Schienen nagt. Zweitens liegt die Einbauposition der vier R\u00e4der nicht an den vier Ecken des Rechtecks, und die Mitte der R\u00e4der auf derselben Seite liegt nicht in einer geraden Linie, was zu einer Ablenkung der Mittellinie der R\u00e4der f\u00fchrt und zum Anfressen der Schiene f\u00fchrt . <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">2. Schienenaufprall. <\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact.jpg\" alt=\"Schieneneinschlag\" class=\"wp-image-3874 size-full lazyload\"\/><noscript><img decoding=\"async\" width=\"964\" height=\"648\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact.jpg\" alt=\"Schieneneinschlag\" class=\"wp-image-3874 size-full lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact.jpg 964w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact-300x202.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact-768x516.jpg 768w\" sizes=\"(max-width: 964px) 100vw, 964px\" \/><\/noscript><\/figure><div class=\"wp-block-media-text__content\">\n<p>Erstens, da die Gleisverlegung nicht dem Standard entspricht, ist die horizontale Biegung zu gro\u00df und der Geradheitsfehler betr\u00e4gt mehr als 2 mm, was zum Abnagen des festen Gleissegments f\u00fchrt.  <\/p>\n\n\n\n<p>Zweitens ist die Spurweite zu gro\u00df, die \u00e4u\u00dfere Radkante nagt an der Schiene; umgekehrt nagt die innere Radkante an der Schiene.  <\/p>\n\n\n\n<p>Drittens betr\u00e4gt der vertikale H\u00f6henunterschied zwischen den Stufen auf demselben Abschnitt der beiden Gleise mehr als 15 mm, was zum Seitenrutschen des Wagens und zum Durchfressen der Schienen f\u00fchrt.  <\/p>\n\n\n\n<p>Viertens ist die Parallelit\u00e4t der beiden Gleise zu gro\u00df und bildet eine \u201eAchtzeichen\u201c- oder Trompetenform, was zum Schienenfressen f\u00fchrt.  <\/p>\n\n\n\n<p>\n\nF\u00fcnftens ist das Gleisfundament nicht stabil, und wenn es belastet wird, sinkt es ein, was zu Schienenfra\u00df f\u00fchrt.\n\n<\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">3. Verformungswirkung der Kranbr\u00fccke. <\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact.jpg\" alt=\"Aufprall der Verformung der Kranbr\u00fccke\" class=\"wp-image-3869 size-full lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"747\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact.jpg\" alt=\"Aufprall der Verformung der Kranbr\u00fccke\" class=\"wp-image-3869 size-full lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact.jpg 1024w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact-300x219.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact-768x560.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure><div class=\"wp-block-media-text__content\">\n<p>Erstens f\u00fchren die Verformungen des Br\u00fcckenrahmens zu einer horizontalen Biegung des Endtr\u00e4gers. Wenn die Diagonall\u00e4nge 5 mm oder mehr \u00fcberschreitet, f\u00fchrt dies dazu, dass die Spanne die Differenz \u00fcberschreitet. Ist es positiv, nagt es an der Innenfelge des Rades; im Gegenteil, es nagt an der Au\u00dfenfelge des Rades.  <\/p>\n\n\n\n<p>Zweitens f\u00fchrt die horizontale Biegung des Endtr\u00e4gers dazu, dass das Rad horizontal abweicht, so dass die Mittellinie des Rades und die Mittellinie des Gleises nicht auf einer geraden Linie liegen, wodurch die gleiche Abweichung entsteht und ein Schienenfressen entsteht.  <\/p>\n\n\n\n<p>Drittens f\u00fchrt die vertikale Durchbiegung des Br\u00fcckenrahmens zu einer vertikalen Durchbiegung des Rads, wodurch sich der Winkel zwischen der Mittellinie der Lauffl\u00e4che und der vertikalen Linie \u00e4ndert und sich der Rollradius des Rads \u00e4ndert. Nach der Belastung nimmt die vertikale Durchbiegung auf einer Seite des Rads allm\u00e4hlich zu, w\u00e4hrend die vertikale Durchbiegung auf der anderen Seite abnimmt, was zu unterschiedlichen Rollradien und damit zu Schienenfressen f\u00fchrt. <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">4. Die unterschiedliche Drehzahl zweier Motoren oder die unterschiedliche Einstellung des Spiels zwischen den beiden Bremsen im Fahrwerk des separat angetriebenen Kranwagens f\u00fchren zu unterschiedlichen Bremsmomenten und -schritten, was zum Schienenfressen f\u00fchrt.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane.jpg\" alt=\"Motor des Krans\" class=\"wp-image-3870 lazyload\"\/><noscript><img decoding=\"async\" width=\"520\" height=\"482\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane.jpg\" alt=\"Motor des Krans\" class=\"wp-image-3870 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane.jpg 520w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane-300x278.jpg 300w\" sizes=\"(max-width: 520px) 100vw, 520px\" \/><\/noscript><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">5. Der Spalt zwischen den beiden Enden der Kupplung des \u00dcbertragungsmechanismus ist zu gro\u00df, was dazu f\u00fchrt, dass die R\u00e4der nicht gleichzeitig angetrieben werden k\u00f6nnen und es zu Schienenfressen kommt.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane.jpg\" alt=\"Teile des beliebten Krans\" class=\"wp-image-3872 lazyload\"\/><noscript><img decoding=\"async\" width=\"677\" height=\"452\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane.jpg\" alt=\"Teile des beliebten Krans\" class=\"wp-image-3872 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane.jpg 677w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane-300x200.jpg 300w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/><\/noscript><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">6. \u00d6l oder Fremdk\u00f6rper auf dem Gleisprofil k\u00f6nnen dazu f\u00fchren, dass das Rad auf beiden Seiten mit unterschiedlichen Geschwindigkeiten l\u00e4uft, was ebenfalls zu Schienenfra\u00df f\u00fchren kann.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips.jpg\" alt=\"Tipps f\u00fcr Laufkrane\" class=\"wp-image-3871 lazyload\"\/><noscript><img decoding=\"async\" width=\"687\" height=\"609\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips.jpg\" alt=\"Tipps f\u00fcr Laufkrane\" class=\"wp-image-3871 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips.jpg 687w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips-300x266.jpg 300w\" sizes=\"(max-width: 687px) 100vw, 687px\" \/><\/noscript><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center\"><strong> Produkte, die Sie interessieren k\u00f6nnten <\/strong><\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" 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data-link=\"https:\/\/www.sevencrane.com\/industrial-mobile-20-ton-25-ton-gantry-crane-price\/25t-double-girder-gantry-crane\/\" class=\"wp-image-3518 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/02\/17155455\/25t-double-girder-gantry-crane.jpg 750w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/02\/17155455\/25t-double-girder-gantry-crane-300x244.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/noscript><figcaption class=\"blocks-gallery-item__caption\"><a href=\"https:\/\/www.sevencrane.com\/de\/product\/double-girder-gantry-crane\/\">https:\/\/www.sevencrane.com\/product\/double-girder-gantry-crane\/<\/a><\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2020\/02\/22104036\/1t-electric-chain-hoist.jpg\" 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Der Kunde hatte den Laufkran zuvor bei einem anderen Anbieter gekauft, stellte jedoch fest, dass die Kranschienen und -r\u00e4der des Krans kurz nach dem Einsatz schwer besch\u00e4digt waren, was die Produktion und Nutzung beeintr\u00e4chtigte und einen gro\u00dfen Verlust verursachte. 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