{"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\/sv\/posts\/overhead-crane-wheel-diameter-selection-guide\/","title":{"rendered":"Val av hjuldiameter f\u00f6r traverskranar: En praktisk teknisk guide till GB\/T 26477.1-2011"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Inneh\u00e5llsf\u00f6rteckning<\/p><nav><ul><li><a href=\"#step-1-determine-the-effective-rail-width\">Steg 1: Best\u00e4m den effektiva skenbredden<\/a><\/li><li><a href=\"#step-2-determine-the-allowable-specific-pressure-pl\">Steg 2: Best\u00e4m det till\u00e5tna specifika trycket PL<\/a><\/li><li><a href=\"#step-3-determine-coefficient-c\u2081\">Steg 3: Best\u00e4m koefficient c\u2081<\/a><\/li><li><a href=\"#step-4-determine-coefficient-c\u2082\">Steg 4: Best\u00e4m koefficienten c\u2082<\/a><\/li><li><a href=\"#step-5-verify-overhead-crane-wheel-diameter-formulas-1-and-2\">Steg 5: Verifiera traverskranens hjuldiameter \u2014 Formel 1 och 2<\/a><\/li><li><a href=\"#step-6-calculate-equivalent-working-wheel-load-pmean\">Steg 6: Ber\u00e4kna ekvivalent arbetshjulbelastning Pmean<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p><a href=\"https:\/\/www.kscranegroup.com\/sv\/crane-wheel-assemblies\/\">Hjul f\u00f6r traverskran<\/a> \u00e4r kritiska lastb\u00e4rande komponenter i kranens r\u00f6relsemekanism, som st\u00f6der hela kranstrukturen samtidigt som hjullaster s\u00e4kert \u00f6verf\u00f6rs till l\u00f6pbanans r\u00e4ls. Att v\u00e4lja r\u00e4tt hjuldiameter f\u00f6r traverskranen p\u00e5verkar direkt kontaktsp\u00e4nningen mellan hjul och r\u00e4l, g\u00e5ngstabilitet, livsl\u00e4ngd och underh\u00e5llskostnader. Ett f\u00f6r litet hjul kan leda till f\u00f6r h\u00f6gt lagertryck, accelererat hjul- och r\u00e4lslitage och f\u00f6r tidigt komponenthaveri, medan ett f\u00f6r stort hjul kan \u00f6ka utrustningens vikt och tillverkningskostnader. <\/p>\n\n\n\n<p>Denna guide f\u00f6rklarar en praktisk sexstegsmetod f\u00f6r att best\u00e4mma l\u00e4mplig hjuldiameter f\u00f6r traverskranar baserat p\u00e5 GB\/T 26477.1-2011, som t\u00e4cker effektiv r\u00e4lsbredd, till\u00e5tet specifikt lagertryck, hastighets- och arbetskoefficienter, lastkombinationer och tekniska verifieringsformler f\u00f6r traverskranar, portalkranar och annan r\u00e4lsmonterad lyftutrustning.<\/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 och dimensioner (K\u00e4lla: JB\/T 6392-2008)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Standarden tillhandah\u00e5ller \u00e4ven formler f\u00f6r att ber\u00e4kna lokala sp\u00e4nningar i krankonstruktionen orsakade av hjullaster (sp\u00e4nningsbest\u00e4mning, lastf\u00f6rdelning under r\u00e4len, lokalt tryck p\u00e5 hjulb\u00e4rande fl\u00e4nsplattor f\u00f6r I-balkar och l\u00e5dbalkar) och en metod f\u00f6r att best\u00e4mma arbetsklassificeringen f\u00f6r \u00e5khjulsmekanismen. Dessa behandlas inte i den h\u00e4r artikeln \u2013 se den ursprungliga standarden f\u00f6r den fullst\u00e4ndiga behandlingen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-1-determine-the-effective-rail-width\">Steg 1: Best\u00e4m den effektiva skenbredden<\/h2>\n\n\n\n<p>F\u00f6r en plan eller l\u00e4tt kr\u00f6nt l\u00f6pyta med total bredd <strong>jag<\/strong> och h\u00f6rnradie <strong>r<\/strong> p\u00e5 varje sida:<\/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>Tv\u00e4rsnitt av P- eller QU-typ skena (K\u00e4lla: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<ul>\n<li>F\u00f6r r\u00e4ls eller hjul med l\u00e4tt v\u00e4lvda l\u00f6pytor kan det till\u00e5tna specifika trycket PL \u00f6kas med 10% (p\u00e5 grund av f\u00f6rb\u00e4ttrad kontakt mellan hjul och r\u00e4l).<\/li>\n\n\n\n<li>F\u00f6r hjul som l\u00f6per p\u00e5 den nedre fl\u00e4nsen p\u00e5 en I-balk (plan, konisk eller l\u00e4tt kr\u00f6nt yta) \u00e4r den effektiva bredden <code>b = w \u2212 r<\/code>, och hjuldiametern D tas vid mittpunkten av den projicerade bredden (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 som l\u00f6per p\u00e5 en balkfl\u00e4ns (K\u00e4lla: 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\">Steg 2: Best\u00e4m det till\u00e5tna specifika trycket PL<\/h2>\n\n\n\n<p>PL-v\u00e4rden anges i tabell 1. Metallmaterial ska \u00f6verensst\u00e4mma med specifikationerna f\u00f6r gjutet, smidd eller valsat st\u00e5l, eller sf\u00e4roidalt grafitgjutj\u00e4rn. Vid val av PL kan ett h\u00e4rdat slitbanelagerdjup p\u00e5 0,01D beaktas.<\/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>Tabell 1 PL-v\u00e4rdestabell (K\u00e4lla: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Den ultimata dragh\u00e5llfastheten fu (UTS) \u00e4r den maximala sp\u00e4nning ett material kan motst\u00e5 f\u00f6re brott under dragsp\u00e4nning, m\u00e4tt i MPa (1 MPa = 1 N\/mm\u00b2), best\u00e4md genom dragprovning.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-3-determine-coefficient-c\u2081\">Steg 3: Best\u00e4m koefficient c\u2081<\/h2>\n\n\n\n<p>Koefficienten c\u2081 v\u00e4ljs baserat p\u00e5 hjulets rotationshastighet. Se tabell 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>Tabell 2 c\u2081-v\u00e4rdetabell (K\u00e4lla: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step-4-determine-coefficient-c\u2082\">Steg 4: Best\u00e4m koefficienten c\u2082<\/h2>\n\n\n\n<p>Koefficienten <strong>c\u2082<\/strong> v\u00e4ljs baserat p\u00e5 mekanismens arbetsklassificering. Enligt vanlig praxis f\u00f6ljer detta den \u00f6vergripande kranklassificeringen och kan vara lika med eller en niv\u00e5 l\u00e4gre \u00e4n kranens arbetsklassificering. Se tabell 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>Tabell 3 c\u2082-v\u00e4rdetabell (K\u00e4lla: 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\">Steg 5: Verifiera traverskranens hjuldiameter \u2014 Formel 1 och 2<\/h2>\n\n\n\n<p>F\u00f6r att slutf\u00f6ra hjulstorleken, verifiera att hjulet kan hantera den maximala hjulbelastningen utan alltf\u00f6r stort slitage. Tv\u00e5 verifieringsformler g\u00e4ller (Formel 1 och 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 (K\u00e4lla: 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 (K\u00e4lla: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Symbol<\/th><th>Menande<\/th><th>Enhet<\/th><\/tr><\/thead><tbody><tr><td>D<\/td><td>Hjuldiameter<\/td><td>mm<\/td><\/tr><tr><td>b<\/td><td>Effektiv r\u00e4lsbredd<\/td><td>mm<\/td><\/tr><tr><td>PL<\/td><td>Till\u00e5tet specifikt tryck (fr\u00e5n tabell 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>Hastighetsberoende koefficient (fr\u00e5n tabell 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>Tj\u00e4nstberoende koefficient (fr\u00e5n tabell 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>Maximal hjulbelastning under lastkombination A, B eller C (inklusive b\u00e5de dynamiska och statiska provbelastningar)<\/td><td>N<\/td><\/tr><tr><td>Pmedelv\u00e4rde<\/td><td>Ekvivalent arbetshjulbelastning f\u00f6r kombinationerna A och B, tagen som maximalt v\u00e4rde<\/td><td>N<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"load-combination-categories\">Lastkombinationskategorier<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Symbol<\/th><th>Menande<\/th><th>Enhet<\/th><\/tr><\/thead><tbody><tr><td>D<\/td><td>Hjuldiameter<\/td><td>mm<\/td><\/tr><tr><td>b<\/td><td>Effektiv r\u00e4lsbredd<\/td><td>mm<\/td><\/tr><tr><td>PL<\/td><td>Till\u00e5tet specifikt tryck (fr\u00e5n tabell 1)<\/td><td>N\/mm\u00b2<\/td><\/tr><tr><td>c\u2081<\/td><td>Hastighetsberoende koefficient (fr\u00e5n tabell 2)<\/td><td>\u2014<\/td><\/tr><tr><td>c\u2082<\/td><td>Tj\u00e4nstberoende koefficient (fr\u00e5n tabell 3)<\/td><td>\u2014<\/td><\/tr><tr><td>Pmax<\/td><td>Maximal hjulbelastning under lastkombination A, B eller C (inklusive b\u00e5de dynamiska och statiska provbelastningar)<\/td><td>N<\/td><\/tr><tr><td>Pmedelv\u00e4rde<\/td><td>Ekvivalent arbetshjulbelastning f\u00f6r kombinationerna A och B, tagen som maximalt v\u00e4rde<\/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\">Steg 6: Ber\u00e4kna ekvivalent arbetshjulbelastning Pmean<\/h2>\n\n\n\n<p>Pmean \u2014 den ekvivalenta arbetshjulbelastningen med h\u00e4nsyn till lastkombinationerna A och B \u2014 ber\u00e4knas som en approximation med hj\u00e4lp av 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 (K\u00e4lla: GB\/T 26477.1-2011)<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>Viktig begr\u00e4nsning<\/strong>Ovanst\u00e5ende formler g\u00e4ller endast f\u00f6r hjul med en diameter som inte \u00f6verstiger 1,25 m. Erfarenheten visar att f\u00f6r st\u00f6rre diametrar b\u00f6r det till\u00e5tna trycket mellan r\u00e4ls och hjul minskas; anv\u00e4ndning av hjul med st\u00f6rre diameter rekommenderas inte.<\/p>\n\n\n\n<p><strong>Referensstandarder<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\">Fr\u00e5ga om kinesiska kranstandarder<\/a>)<\/strong><\/strong><\/strong><\/strong>:<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 26477.1-2011 Kranar \u2014 Konstruktionsber\u00e4kning f\u00f6r hjul och tillh\u00f6rande st\u00f6dkonstruktion f\u00f6r l\u00f6pbanor \u2014 Del 1: Allm\u00e4nt<\/li>\n\n\n\n<li>GB\/T 6974.1-2008 Kranar \u2014 Ordf\u00f6rr\u00e5d \u2014 Del 1: Allm\u00e4nt (IDT ISO 4306-1:2007)<\/li>\n\n\n\n<li>GB\/T 20863.1-2021 Kranar \u2014 Klassificering \u2014 Del 1: Allm\u00e4nt (IDT ISO 4301-1:2016)<\/li>\n\n\n\n<li>GB\/T 22437.1-2018 Kranar \u2014 Konstruktionsprinciper f\u00f6r laster och lastkombinationer \u2014 Del 1: Allm\u00e4nt<\/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\/sv\/wp-json\/wp\/v2\/xmxposts\/12018"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions"}],"predecessor-version":[{"id":12054,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/xmxposts\/12018\/revisions\/12054"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/media\/10134"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/media?parent=12018"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/posts_category?post=12018"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sv\/wp-json\/wp\/v2\/posts_tag?post=12018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}