{"id":12018,"date":"2026-07-15T01:18:26","date_gmt":"2026-07-15T01:18:26","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=12018"},"modified":"2026-07-15T01:18:33","modified_gmt":"2026-07-15T01:18:33","slug":"overhead-crane-wheel-diameter-selection-guide","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/da\/posts\/overhead-crane-wheel-diameter-selection-guide\/","title":{"rendered":"Valg af hjuldiameter p\u00e5 traverskraner: En praktisk teknisk guide til GB\/T 26477.1-2011"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Indholdsfortegnelse<\/p><nav><ul><li><a href=\"#step-1-determine-the-effective-rail-width\">Trin 1: Bestem den effektive skinnebredde<\/a><\/li><li><a href=\"#step-2-determine-the-allowable-specific-pressure-pl\">Trin 2: Bestem det tilladte specifikke tryk PL<\/a><\/li><li><a href=\"#step-3-determine-coefficient-c\u2081\">Trin 3: Bestem koefficient c\u2081<\/a><\/li><li><a href=\"#step-4-determine-coefficient-c\u2082\">Trin 4: Bestem koefficient c\u2082<\/a><\/li><li><a href=\"#step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">Trin 5: Bekr\u00e6ft traverskranens hjuldiameter \u2014 Formel 1 og 2<\/a><\/li><li><a href=\"#step-6-calculate-equivalent-working-wheel-load-pmean\">Trin 6: Beregn den \u00e6kvivalente arbejdshjulbelastning Pmean<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p><a href=\"https:\/\/www.kscranegroup.com\/da\/crane-wheel-assemblies\/\">Hjul til traverskran<\/a> er kritiske lastb\u00e6rende komponenter i kranens k\u00f8remekanisme, der underst\u00f8tter hele kranstrukturen, samtidig med at hjullaster overf\u00f8res sikkert til k\u00f8rebanens skinner. Valg af den korrekte hjuldiameter p\u00e5 traverskranen p\u00e5virker direkte kontaktsp\u00e6ndingen mellem hjul og skinne, driftsstabilitet, levetid og vedligeholdelsesomkostninger. Et for lille hjul kan f\u00f8re til for h\u00f8jt lejetryk, accelereret hjul- og skinneslid og for tidlig komponentfejl, mens et for stort hjul kan \u00f8ge udstyrets v\u00e6gt og produktionsomkostninger. <\/p>\n\n\n\n<p>Denne vejledning forklarer en praktisk sekstrinsmetode til bestemmelse af den passende hjuldiameter for en traverskran baseret p\u00e5 GB\/T 26477.1-2011, der d\u00e6kker effektiv skinnebredde, tilladt specifikt lejetryk, hastigheds- og driftskoefficienter, lastkombinationer og tekniske verifikationsformler for traverskraner, portalkraner og andet skinnemonteret l\u00f8fteudstyr.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1597\" height=\"985\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions.png\" alt=\"\" class=\"wp-image-12011\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions.png 1597w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Wheel-types-and-dimensions-1536x947.png 1536w\" sizes=\"(max-width: 1597px) 100vw, 1597px\" \/><figcaption class=\"wp-element-caption\"><em>Hjultyper og -dimensioner (Kilde: JB\/T 6392-2008)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Standarden indeholder ogs\u00e5 formler til beregning af lokale sp\u00e6ndinger i kranstrukturen for\u00e5rsaget af hjulbelastninger (sp\u00e6ndingsbestemmelse, lastfordeling under skinnen, lokalt tryk p\u00e5 hjulb\u00e6rende flangeplader til I-bj\u00e6lker og kassebj\u00e6lker) og en metode til bestemmelse af arbejdsklassificeringen af k\u00f8rehjulsmekanismen. Disse er ikke d\u00e6kket i denne artikel - se den originale standard for den fulde behandling.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-1-determine-the-effective-rail-width\">Trin 1: Bestem den effektive skinnebredde<\/h2>\n\n\n\n<p>Til en flad eller let buet l\u00f8beflade med totalbredde <strong>l<\/strong> og hj\u00f8rneradius <strong>r<\/strong> p\u00e5 hver side:<\/p>\n\n\n\n<p>b = l \u2212 2 \u00d7 r<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1529\" height=\"1029\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Figure-2-P-type-or-QU-type-rail-cross-section.png\" alt=\"\" class=\"wp-image-12012\"\/><figcaption class=\"wp-element-caption\"><em>P-type eller QU-type skinnetv\u00e6rsnit (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<ul>\n<li>For skinner eller hjul med let buede l\u00f8beflader kan det tilladte specifikke tryk PL \u00f8ges med 10% (p\u00e5 grund af forbedret hjul-skinne-kontakt).<\/li>\n\n\n\n<li>For hjul, der k\u00f8rer p\u00e5 den nederste flange af en I-bj\u00e6lke (flad, konisk eller let buet overflade), er den effektive bredde <code>b = w \u2212 r<\/code>, og hjuldiameteren D tages ved midtpunktet af den projekterede bredde (w \u2212 r).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1416\" height=\"1111\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/3Figure-3-Wheel-running-on-a-beam-flange.png\" alt=\"\" class=\"wp-image-12013\"\/><figcaption class=\"wp-element-caption\"><em>Hjul, der k\u00f8rer p\u00e5 en bj\u00e6lkeflange (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-2-determine-the-allowable-specific-pressure-pl\">Trin 2: Bestem det tilladte specifikke tryk PL<\/h2>\n\n\n\n<p>PL-v\u00e6rdier er angivet i tabel 1. Metalmaterialer skal overholde specifikationerne for st\u00f8bt, smedet eller valset st\u00e5l eller kuglegrafitst\u00f8bejern. Ved valg af PL kan en h\u00e6rdet slidbanedybde p\u00e5 0,01D tages i betragtning.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2095\" height=\"751\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table.png\" alt=\"\" class=\"wp-image-12014\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table.png 2095w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table-1536x551.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Table-1-PL-value-table-2048x734.png 2048w\" sizes=\"(max-width: 2095px) 100vw, 2095px\" \/><figcaption class=\"wp-element-caption\"><em>Tabel 1 PL-v\u00e6rditabel (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Den ultimative tr\u00e6kstyrke fu (UTS) er den maksimale sp\u00e6nding, et materiale kan modst\u00e5 f\u00f8r brud under tr\u00e6k, m\u00e5lt i MPa (1 MPa = 1 N\/mm\u00b2), bestemt ved tr\u00e6kpr\u00f8vning.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-3-determine-coefficient-c\u2081\">Trin 3: Bestem koefficient c\u2081<\/h2>\n\n\n\n<p>Koefficienten c\u2081 v\u00e6lges ud fra hjulets rotationshastighed. Se tabel 2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2008\" height=\"783\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table.png\" alt=\"\" class=\"wp-image-12027\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table.png 2008w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Table-2-c1-value-table-1536x599.png 1536w\" sizes=\"(max-width: 2008px) 100vw, 2008px\" \/><figcaption class=\"wp-element-caption\"><em>Tabel 2 c\u2081-v\u00e6rditabel (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-4-determine-coefficient-c\u2082\">Trin 4: Bestem koefficient c\u2082<\/h2>\n\n\n\n<p>Koefficienten <strong>c\u2082<\/strong> v\u00e6lges baseret p\u00e5 mekanismens arbejdsbelastningsklassificering. I almindelig praksis f\u00f8lger dette den overordnede kranklassificering og kan v\u00e6re lig med eller et niveau lavere end kranens arbejdsbelastning. Se tabel 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table.png\" alt=\"\" class=\"wp-image-12028\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table.png 2172w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table-1536x512.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-3-c2-value-table-2048x683.png 2048w\" sizes=\"(max-width: 2172px) 100vw, 2172px\" \/><figcaption class=\"wp-element-caption\"><em>Tabel 3 c\u2082-v\u00e6rditabel (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">Trin 5: Bekr\u00e6ft traverskranens hjuldiameter \u2014 Formel 1 og 2<\/h2>\n\n\n\n<p>For at endeligt bestemme hjulst\u00f8rrelsen skal det kontrolleres, at hjulet kan klare den maksimale hjulbelastning uden overdreven slitage. Der anvendes to verifikationsformler (Formel 1 og Formel 2).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1842\" height=\"854\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1.png\" alt=\"\" class=\"wp-image-12015\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1.png 1842w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7Figure-4-Formula-1-1536x712.png 1536w\" sizes=\"(max-width: 1842px) 100vw, 1842px\" \/><figcaption class=\"wp-element-caption\"><em>Formel 1 (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2184\" height=\"720\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2.png\" alt=\"\" class=\"wp-image-12016\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2.png 2184w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2-1536x506.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Formula-2-2048x675.png 2048w\" sizes=\"(max-width: 2184px) 100vw, 2184px\" \/><figcaption class=\"wp-element-caption\"><em>Formel 2 (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Symbol<\/th><th>Mening<\/th><th>Enhed<\/th><\/tr><\/thead><tbody><tr><td>D<\/td><td>Hjul diameter<\/td><td>mm<\/td><\/tr><tr><td>b<\/td><td>Effektiv skinnebredde<\/td><td>mm<\/td><\/tr><tr><td>PL<\/td><td>Tilladt specifikt tryk (fra tabel 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>Hastighedsafh\u00e6ngig koefficient (fra tabel 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>Driftsafh\u00e6ngig koefficient (fra tabel 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>Maksimal hjulbelastning under belastningskombination A, B eller C (inklusive b\u00e5de dynamiske og statiske testbelastninger)<\/td><td>N<\/td><\/tr><tr><td>Pmean<\/td><td>\u00c6kvivalent arbejdshjulbelastning for kombinationerne A og B, taget som den maksimale v\u00e6rdi<\/td><td>N<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"load-combination-categories\">Indl\u00e6s kombinationskategorier<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Symbol<\/th><th>Mening<\/th><th>Enhed<\/th><\/tr><\/thead><tbody><tr><td>D<\/td><td>Hjul diameter<\/td><td>mm<\/td><\/tr><tr><td>b<\/td><td>Effektiv skinnebredde<\/td><td>mm<\/td><\/tr><tr><td>PL<\/td><td>Tilladt specifikt tryk (fra tabel 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>Hastighedsafh\u00e6ngig koefficient (fra tabel 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>Driftsafh\u00e6ngig koefficient (fra tabel 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>Maksimal hjulbelastning under belastningskombination A, B eller C (inklusive b\u00e5de dynamiske og statiske testbelastninger)<\/td><td>N<\/td><\/tr><tr><td>Pmean<\/td><td>\u00c6kvivalent arbejdshjulbelastning for kombinationerne A og B, taget som den maksimale v\u00e6rdi<\/td><td>N<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-6-calculate-equivalent-working-wheel-load-pmean\">Trin 6: Beregn den \u00e6kvivalente arbejdshjulbelastning Pmean<\/h2>\n\n\n\n<p>Pmean \u2014 den \u00e6kvivalente arbejdshjulbelastning under hensyntagen til belastningskombinationerne A og B \u2014 beregnes som en tiln\u00e6rmelse ved hj\u00e6lp af formel 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3.png\" alt=\"\" class=\"wp-image-12017\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3.png 2172w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3-1536x512.png 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Figure-6-Formula-3-2048x683.png 2048w\" sizes=\"(max-width: 2172px) 100vw, 2172px\" \/><figcaption class=\"wp-element-caption\"><em>Formel 3 (Kilde: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>Vigtig begr\u00e6nsning<\/strong>Ovenst\u00e5ende formler g\u00e6lder kun for hjul med en diameter p\u00e5 h\u00f8jst 1,25 m. Erfaring viser, at det tilladte tryk mellem skinne og hjul b\u00f8r reduceres ved st\u00f8rre diametre; brug af hjul med st\u00f8rre diameter anbefales ikke.<\/p>\n\n\n\n<p><strong>Referencestandarder<strong><strong><strong><strong>(<a href=\"https:\/\/openstd.samr.gov.cn\/bzgk\/std\/std_list?p.p1=0&amp;p.p90=circulation_date&amp;p.p91=desc&amp;p.p2=%E8%B5%B7%E9%87%8D%E6%9C%BA\" target=\"_blank\" rel=\"noopener\">Foresp\u00f8rgsel om kinesiske kranstandarder<\/a>)<\/strong><\/strong><\/strong><\/strong>:<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 26477.1-2011 Kraner \u2014 Designberegning for hjul og tilh\u00f8rende st\u00f8ttestruktur til l\u00f8behjul \u2014 Del 1: Generelt<\/li>\n\n\n\n<li>GB\/T 6974.1-2008 Kraner \u2014 Ordforr\u00e5d \u2014 Del 1: Generelt (IDT ISO 4306-1:2007)<\/li>\n\n\n\n<li>GB\/T 20863.1-2021 Kraner \u2014 Klassificering \u2014 Del 1: Generelt (IDT ISO 4301-1:2016)<\/li>\n\n\n\n<li>GB\/T 22437.1-2018 Kraner \u2014 Designprincipper for laster og lastkombinationer \u2014 Del 1: Generelt<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"When designing or procuring an overhead crane, how do you determine the correct wheel diameter for a given wheel load? The answer involves effective rail width, allowable specific bearing pressure, sp","protected":false},"featured_media":10134,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[867,868,801,62,863,850,121,865,864,866],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts\/12018"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions"}],"predecessor-version":[{"id":12054,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions\/12054"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/media\/10134"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/media?parent=12018"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/posts_category?post=12018"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/posts_tag?post=12018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}