{"id":11848,"date":"2026-06-29T08:30:43","date_gmt":"2026-06-29T08:30:43","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11848"},"modified":"2026-06-29T08:31:16","modified_gmt":"2026-06-29T08:31:16","slug":"overhead-crane-rail-installation-tolerances","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/cs\/posts\/overhead-crane-rail-installation-tolerances\/","title":{"rendered":"Tolerance instalace kolejnic mostov\u00e9ho je\u0159\u00e1bu \u2013 10 p\u0159ej\u00edmac\u00edch kontrol dle normy ISO 12488-1:2012"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Obsah<\/p><nav><ul><li><a href=\"#which-standard-applies-to-overhead-crane-rail-installation-tolerances\">Kter\u00e1 norma plat\u00ed pro tolerance instalace kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#overhead-crane-rail-installation-tolerances-grade-determination\">Stanoven\u00ed toleranc\u00ed pro instalaci kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#the-10-tolerance-checks-grade-2\">10 kontrol tolerance (stupe\u0148 2)<\/a><ul><li><a href=\"#check-1-span-tolerance-\u03b4s\">Kontrola 1 \u2013 Tolerance rozp\u011bt\u00ed \u0394S<\/a><\/li><li><a href=\"#check-2-rail-straightness-in-horizontal-plane-full-length-b\">Kontrola 2 \u2013 P\u0159\u00edmost kolejnice v horizont\u00e1ln\u00ed rovin\u011b (po cel\u00e9 d\u00e9lce) B<\/a><\/li><li><a href=\"#check-3-rail-straightness-in-horizontal-plane-2000-mm-sample-b\">Kontrola 3 \u2013 P\u0159\u00edmost kolejnice v horizont\u00e1ln\u00ed rovin\u011b (vzorek 2000 mm) b<\/a><\/li><li><a href=\"#check-4-rail-straightness-in-vertical-plane-full-length-c\">Kontrola 4 \u2013 P\u0159\u00edmost kolejnice ve svisl\u00e9 rovin\u011b (po cel\u00e9 d\u00e9lce) C<\/a><\/li><li><a href=\"#check-5-rail-straightness-in-vertical-plane-2000-mm-sample-c\">Kontrola 5 \u2013 P\u0159\u00edmost kolejnice ve svisl\u00e9 rovin\u011b (vzorek 2000 mm) c<\/a><\/li><li><a href=\"#check-6-height-difference-between-opposite-rails-e\">Kontrola 6 \u2013 V\u00fd\u0161kov\u00fd rozd\u00edl mezi protilehl\u00fdmi kolejnicemi E<\/a><\/li><li><a href=\"#check-7-end-stop-buffer-parallelism-f\">Kontrola 7 \u2013 Paralelismus koncov\u00fdch zar\u00e1\u017eek \/ vyrovn\u00e1vac\u00edch pam\u011bt\u00ed F<\/a><\/li><li><a href=\"#check-8-rail-joint-gap\">Kontrola 8 \u2013 Mezera ve spoji kolejnice<\/a><\/li><li><a href=\"#check-9-rail-inclination-g\">Kontrola 9 \u2013 Sklon kolejnice G<\/a><\/li><li><a href=\"#check-10-rail-centre-vs-web-centre-deviation-k\">Kontrola 10 \u2013 Odchylka K mezi \u017eelezni\u010dn\u00edm centrem a webov\u00fdm centrem<\/a><\/li><\/ul><\/li><li><a href=\"#recommended-overhead-crane-rail-inspection-workflow\">Doporu\u010den\u00fd pracovn\u00ed postup inspekce kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#consequences-of-out-of-tolerance-conditions\">D\u016fsledky stav\u016f mimo toleranci<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Je\u0159\u00e1bov\u00e1 dr\u00e1ha je nejn\u00e1ro\u010dn\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed cel\u00e9ho zdvihac\u00edho syst\u00e9mu. Chyba rozp\u011bt\u00ed 5 mm na 20 metrech vytv\u00e1\u0159\u00ed cyklick\u00e9 bo\u010dn\u00ed zat\u00ed\u017een\u00ed na koncov\u00fdch voz\u00edkech, kter\u00e9 \u017e\u00e1dn\u00e9 maz\u00e1n\u00ed p\u0159\u00edrub kol neoprav\u00ed. A\u0165 u\u017e jste stavbyvedouc\u00ed ov\u011b\u0159uj\u00edc\u00ed pr\u00e1ci stavebn\u00edho dodavatele, instalat\u00e9r je\u0159\u00e1bu p\u0159ipravuj\u00edc\u00ed se na mont\u00e1\u017e nebo \u00fadr\u017eb\u00e1\u0159 prov\u00e1d\u011bj\u00edc\u00ed pravidelnou kontrolu, t\u011bchto 10 kontrol toleranc\u00ed je to, co... <a href=\"https:\/\/www.kscranegroup.com\/cs\/posts\/a-comprehensive-guide-to-selecting-the-right-crane-rail-standard-for-your-application\/\">standardn\u00ed je\u0159\u00e1bov\u00e1 kolejnice<\/a> ve skute\u010dnosti vy\u017eaduje.<\/p>\n\n\n\n<p>Tato p\u0159\u00edru\u010dka vych\u00e1z\u00ed z normy GB\/T 10183.1-2018, kter\u00e1 je identick\u00e1 s normou (IDT) ISO 12488-1:2012. Norma byla naposledy revidov\u00e1na 1. 7. 2025 bez aktualizac\u00ed. Pokud v\u00e1\u0161 projekt specifikuje tolerance ISO, plat\u00ed p\u0159\u00edmo hodnoty v t\u00e9to p\u0159\u00edru\u010dce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"which-standard-applies-to-overhead-crane-rail-installation-tolerances\">Kter\u00e1 norma plat\u00ed pro tolerance instalace kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Typ je\u0159\u00e1bu<\/th><th>Pou\u017eiteln\u00e1 norma<\/th><th>Referen\u010dn\u00ed tolerance<\/th><\/tr><\/thead><tbody><tr><td>Mostov\u00e9 je\u0159\u00e1by (obecn\u011b)<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabulka 2, Stupe\u0148 2<\/td><\/tr><tr><td>Mostov\u00e9 je\u0159\u00e1by (rychlost pojezdu \u2265 112 m\/min)<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabulka 2, Stupe\u0148 1<\/td><\/tr><tr><td>Port\u00e1lov\u00e9 je\u0159\u00e1by (obecn\u011b)<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabulka 2, Stupe\u0148 2<\/td><\/tr><tr><td>Port\u00e1lov\u00e9 je\u0159\u00e1by pro stavbu lod\u00ed<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabulka 2, Stupe\u0148 2 + Tabulka 6 (tolerance spoj\u016f)<\/td><\/tr><tr><td>Jednonosn\u00edkov\u00e9 \/ podv\u011bsn\u00e9 je\u0159\u00e1by<\/td><td>GB\/T 10183.1-2018<\/td><td>Podle standardu<\/td><\/tr><tr><td>Vyklada\u010de lod\u00ed<\/td><td>GB\/T 10183.1-2018<\/td><td>Tabulky 2, 6, 7 \u2013 2. ro\u010dn\u00edk<\/td><\/tr><tr><td>Oto\u010dn\u00e9 je\u0159\u00e1by<\/td><td>GB\/T 10183.4-2010<\/td><td>Samostatn\u00e9 tolerance<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Srovn\u00e1vac\u00ed tabulka standard\u016f je\u0159\u00e1b\u016f<\/figcaption><\/figure>\n\n\n\n<p><em>V\u00fdchoz\u00ed hodnota pro v\u011bt\u0161inu mostov\u00fdch a port\u00e1lov\u00fdch je\u0159\u00e1b\u016f: tolerance stupn\u011b 2 dle tabulky 2.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"overhead-crane-rail-installation-tolerances-grade-determination\">Stanoven\u00ed toleranc\u00ed pro instalaci kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<p>Toleran\u010dn\u00ed stupn\u011b pro instalaci kolejnic mostov\u00e9ho je\u0159\u00e1bu se p\u0159i\u0159azuj\u00ed prim\u00e1rn\u011b na z\u00e1klad\u011b celkov\u00e9 vzd\u00e1lenosti pojezdu za dobu \u017eivotnosti je\u0159\u00e1bu. Citlivost syst\u00e9mu \u2013 m\u00edra, do jak\u00e9 je\u0159\u00e1bov\u00fd syst\u00e9m reaguje na zat\u00ed\u017een\u00ed generovan\u00e1 odchylkou tolerance \u2013 v\u0161ak m\u016f\u017ee vy\u017eadovat zv\u00fd\u0161en\u00ed o jeden stupe\u0148. Mezi syst\u00e9my s vysokou citlivost\u00ed pat\u0159\u00ed je\u0159\u00e1by s dlouh\u00fdm rozp\u011bt\u00edm a minim\u00e1ln\u00edm rozvorem koncov\u00fdch nosn\u00edk\u016f nebo je\u0159\u00e1by manipuluj\u00edc\u00ed s p\u0159esn\u011b um\u00edst\u011bn\u00fdmi b\u0159emeny.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1749\" height=\"899\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11839\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Rail-Installation-Tolerances.png 1749w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Rail-Installation-Tolerances-1536x790.png 1536w\" sizes=\"(max-width: 1749px) 100vw, 1749px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Stupe\u0148 tolerance<\/th><th>Typick\u00e1 aplikace<\/th><\/tr><\/thead><tbody><tr><td>1. ro\u010dn\u00edk<\/td><td>Vysokorychlostn\u00ed je\u0159\u00e1by (\u2265112 m\/min), p\u0159esn\u00e9 polohov\u00e1n\u00ed, dlouh\u00e1 \u017eivotnost<\/td><\/tr><tr><td>2. stupe\u0148<\/td><td>Standardn\u00ed mostov\u00e9 a port\u00e1lov\u00e9 je\u0159\u00e1by (nejb\u011b\u017en\u011bj\u0161\u00ed)<\/td><\/tr><tr><td>3. ro\u010dn\u00edk<\/td><td>N\u00edzkorychlostn\u00ed je\u0159\u00e1by s n\u00edzk\u00fdm vyu\u017eit\u00edm<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Tabulka toleranc\u00ed pro instalaci kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-10-tolerance-checks-grade-2\">10 kontrol tolerance (stupe\u0148 2)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-1-span-tolerance-\u03b4s\">Kontrola 1 \u2013 Tolerance rozp\u011bt\u00ed \u0394S<\/h3>\n\n\n\n<p>Vzd\u00e1lenost mezi \u017eelezni\u010dn\u00edmi uzly v jak\u00e9mkoli bod\u011b pod\u00e9l ranveje.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Rozp\u011bt\u00ed (S)<\/th><th>Tolerance 2. stupn\u011b<\/th><th>Tolerance 1. stupn\u011b<\/th><\/tr><\/thead><tbody><tr><td>S \u2264 16 m<\/td><td>\u0394S = \u00b15 mm<\/td><td>\u0394S = \u00b13 mm<\/td><\/tr><tr><td>S &gt; 16 m<\/td><td>\u0394S = \u00b1[5 + 0,25 \u00d7 (S \u2212 16)] mm, max. \u00b115 mm<\/td><td>max. \u00b110 mm<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Porovn\u00e1vac\u00ed tabulka toleranc\u00ed rozp\u011bt\u00ed<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"901\" height=\"372\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11840\"\/><\/figure>\n\n\n\n<p><strong>P\u0159\u00edklad:<\/strong> Je\u0159\u00e1b s rozp\u011bt\u00edm 28 m: \u0394S = \u00b1[5 + 0,25 \u00d7 (28 \u2212 16)] = \u00b1[5 + 0,25 \u00d7 12] = <strong>\u00b18 mm<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-2-rail-straightness-in-horizontal-plane-full-length-b\">Kontrola 2 \u2013 P\u0159\u00edmost kolejnice v horizont\u00e1ln\u00ed rovin\u011b (po cel\u00e9 d\u00e9lce) B<\/h3>\n\n\n\n<p><strong>B = \u00b110 mm<\/strong> v jak\u00e9mkoli bod\u011b po cel\u00e9 d\u00e9lce kolejnice.<\/p>\n\n\n\n<p>Jedn\u00e1 se o horizont\u00e1ln\u00ed odchylku osy hlavy kolejnice od teoretick\u00e9 osy. M\u011b\u0159\u00ed se od referen\u010dn\u00ed \u010d\u00e1ry napnut\u00e9ho dr\u00e1tu ve v\u00fd\u0161ce hlavy kolejnice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-3-rail-straightness-in-horizontal-plane-2000-mm-sample-b\">Kontrola 3 \u2013 P\u0159\u00edmost kolejnice v horizont\u00e1ln\u00ed rovin\u011b (vzorek 2000 mm) b<\/h3>\n\n\n\n<p><strong>b = 1 mm<\/strong> na libovoln\u00e9 d\u00e9lce vzorku 2000 mm.<\/p>\n\n\n\n<p>T\u00edm se zachyt\u00ed lok\u00e1ln\u00ed zlomy \u2013 ty, kter\u00e9 zp\u016fsob\u00ed n\u00e1hl\u00e9 bo\u010dn\u00ed drhnut\u00ed jednoho kola. Prav\u00edtko a sp\u00e1rov\u00e1 m\u011brka o d\u00e9lce 2000 mm poskytuj\u00ed dostate\u010dnou kontrolu v ter\u00e9nu.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"327\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/3Overhead-Crane-Rail-Installation-Tolerances.jpg\" alt=\"\" class=\"wp-image-11841\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-4-rail-straightness-in-vertical-plane-full-length-c\">Kontrola 4 \u2013 P\u0159\u00edmost kolejnice ve svisl\u00e9 rovin\u011b (po cel\u00e9 d\u00e9lce) C<\/h3>\n\n\n\n<p><strong>C = \u00b110 mm<\/strong> v jak\u00e9mkoli bod\u011b po cel\u00e9 d\u00e9lce kolejnice.<\/p>\n\n\n\n<p>Toto je svisl\u00e1 odchylka hlavy kolejnice od teoretick\u00e9 v\u00fd\u0161kov\u00e9 \u010d\u00e1ry. Pro dlouh\u00e9 dr\u00e1hy pou\u017eijte geodetickou vodov\u00e1hu nebo laserov\u00fd sledova\u010d.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-5-rail-straightness-in-vertical-plane-2000-mm-sample-c\">Kontrola 5 \u2013 P\u0159\u00edmost kolejnice ve svisl\u00e9 rovin\u011b (vzorek 2000 mm) c<\/h3>\n\n\n\n<p><strong>c = 2 mm<\/strong> na libovoln\u00e9 d\u00e9lce vzorku 2000 mm.<\/p>\n\n\n\n<p>Lok\u00e1ln\u00ed propadliny nebo hrby \u2013 takov\u00e9, jak\u00e9 c\u00edt\u00edte, kdy\u017e je\u0159\u00e1b p\u0159ej\u00ed\u017ed\u00ed p\u0159es usazen\u00fd kolejnicov\u00fd spoj. Pro tuto kontrolu posta\u010d\u00ed p\u0159esn\u00e9 prav\u00edtko a hloubkom\u011br.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"897\" height=\"269\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/4Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11842\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-6-height-difference-between-opposite-rails-e\">Kontrola 6 \u2013 V\u00fd\u0161kov\u00fd rozd\u00edl mezi protilehl\u00fdmi kolejnicemi E<\/h3>\n\n\n\n<p><strong>E = \u00b11,0 \u00d7 S mm<\/strong>, kde S je rozp\u011bt\u00ed v metrech, <strong>max. \u00b110 mm<\/strong>(T\u0159\u00edda 1: E = \u00b10,5 \u00d7 S mm, max. \u00b15 mm.)**<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"884\" height=\"339\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/5Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11843\"\/><\/figure>\n\n\n\n<p><strong>P\u0159\u00edklad:<\/strong> Rozp\u011bt\u00ed 20 m \u2192 E = \u00b11,0 \u00d7 20 = \u00b120 mm, omezeno na <strong>\u00b110 mm<\/strong>.<\/p>\n\n\n\n<p>Toto je m\u011b\u0159en\u00ed p\u0159\u00ed\u010dn\u00e9 \u00farovn\u011b. V\u00fd\u0161kov\u00fd rozd\u00edl mezi kolejnicemi nakl\u00e1n\u00ed cel\u00fd je\u0159\u00e1b a vytv\u00e1\u0159\u00ed bo\u010dn\u00ed slo\u017eku s\u00edly ze zvednut\u00e9ho b\u0159emene. Je to jedna z nej\u010dast\u011bji p\u0159ehl\u00ed\u017een\u00fdch kontrol.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-7-end-stop-buffer-parallelism-f\">Kontrola 7 \u2013 Paralelismus koncov\u00fdch zar\u00e1\u017eek \/ vyrovn\u00e1vac\u00edch pam\u011bt\u00ed F<\/h3>\n\n\n\n<p><strong>F = \u00b11,0 \u00d7 S mm<\/strong>, kde S je rozp\u011bt\u00ed v metrech, <strong>max. \u00b110 mm<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"889\" height=\"331\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/6Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11844\"\/><\/figure>\n\n\n\n<p>Oba koncov\u00e9 dorazy mus\u00ed b\u00fdt vz\u00e1jemn\u011b rovnob\u011b\u017en\u00e9 a kolm\u00e9 k pod\u00e9ln\u00e9 ose kolejnice. Pokud tomu tak nen\u00ed, jedna strana je\u0159\u00e1bu naraz\u00ed d\u0159\u00edve ne\u017e druh\u00e1, \u010d\u00edm\u017e se s\u00edla n\u00e1razu soust\u0159ed\u00ed na jeden konec voz\u00edku, m\u00edsto aby se rozd\u011blila mezi oba.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-8-rail-joint-gap\">Kontrola 8 \u2013 Mezera ve spoji kolejnice<\/h3>\n\n\n\n<p>Mezera u spoj\u016f kolejnic mus\u00ed vyrovn\u00e1vat tepelnou rozta\u017enost. U sva\u0159ovan\u00fdch spoj\u016f (doporu\u010den\u00fdch pro dlouh\u00e9 dr\u00e1hy a port\u00e1lov\u00e9 je\u0159\u00e1by pro stavbu lod\u00ed) mus\u00ed b\u00fdt spoj po sva\u0159ov\u00e1n\u00ed zarovnan\u00fd a zabrou\u0161en. Tabulka 6 normy GB\/T 10183.1 uv\u00e1d\u00ed specifick\u00e9 tolerance konstrukce spoj\u016f.<\/p>\n\n\n\n<p>I 0,5 mm vertik\u00e1ln\u00ed odchylka ve spoji kolejnice zp\u016fsob\u00ed sly\u0161iteln\u00fd n\u00e1raz a urychl\u00ed opot\u0159eben\u00ed kola.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-9-rail-inclination-g\">Kontrola 9 \u2013 Sklon kolejnice G<\/h3>\n\n\n\n<p><strong>G = 6 \u2030<\/strong> (6 promile).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"840\" height=\"294\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/7Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11845\"\/><\/figure>\n\n\n\n<p>N\u011bkter\u00e9 profily kolejnic (nap\u0159\u00edklad \u0159ada QU) maj\u00ed \u0161ikm\u00e9 pojezdov\u00e9 plochy. Tolerance sklonu mus\u00ed b\u00fdt ov\u011b\u0159ena vzhledem k profilu j\u00edzdn\u00ed plochy kola, aby byla zaji\u0161t\u011bna spr\u00e1vn\u00e1 geometrie kontaktu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"check-10-rail-centre-vs-web-centre-deviation-k\">Kontrola 10 \u2013 Odchylka K mezi \u017eelezni\u010dn\u00edm centrem a webov\u00fdm centrem<\/h3>\n\n\n\n<p><strong>K = \u00b10,5 \u00d7 t<em>min<\/em><\/strong><em>, kde t<\/em>min je minim\u00e1ln\u00ed tlou\u0161\u0165ka p\u00e1su v mm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"863\" height=\"346\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/8Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11846\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"899\" height=\"356\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/9Overhead-Crane-Rail-Installation-Tolerances.png\" alt=\"\" class=\"wp-image-11847\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"recommended-overhead-crane-rail-inspection-workflow\">Doporu\u010den\u00fd pracovn\u00ed postup inspekce kolejnic mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<p>Na m\u00edst\u011b pro p\u0159ej\u00edmku kolejnice mostov\u00e9ho je\u0159\u00e1bu dodr\u017eujte tento postup:<\/p>\n\n\n\n<ol>\n<li><strong>Nejprve zkontrolujte rozsah<\/strong> \u2014 Pokud je rozp\u011bt\u00ed mimo dosah, v\u0161e ostatn\u00ed je akademick\u00e9. Pou\u017eijte kalibrovan\u00fd laserov\u00fd d\u00e1lkom\u011br v intervalech 2\u20133 metr\u016f pod\u00e9l cel\u00e9 dr\u00e1hy.<\/li>\n\n\n\n<li><strong>Druh\u00e1 \u00farove\u0148 (E)<\/strong> \u2014 Rota\u010dn\u00ed laserov\u00e1 vodov\u00e1ha nebo optick\u00e1 vodov\u00e1ha. Ozna\u010dte jednu kolejnici jako referen\u010dn\u00ed v\u00fd\u0161ku a zm\u011b\u0159te druhou vzhledem k n\u00ed.<\/li>\n\n\n\n<li><strong>Horizont\u00e1ln\u00ed p\u0159\u00edmost (B, b)<\/strong> \u2014 Napnut\u00fd klav\u00edrn\u00ed dr\u00e1t ve v\u00fd\u0161ce hlavy kolejnice, odsazen\u00ed zm\u011b\u0159te ocelov\u00fdm prav\u00edtkem.<\/li>\n\n\n\n<li><strong>Vertik\u00e1ln\u00ed p\u0159\u00edmost (C, c)<\/strong> \u2014 Nivela\u010dn\u00ed p\u0159\u00edstroj nebo laserov\u00fd sledova\u010d. Pro lok\u00e1ln\u00ed kontrolu 2000 mm posta\u010duje p\u0159esn\u00e9 prav\u00edtko.<\/li>\n\n\n\n<li><strong>Spole\u010dn\u00e1 inspekce<\/strong> \u2014 Ka\u017ed\u00fd spoj. Zkontrolujte svisl\u00fd schod a mezeru.<\/li>\n\n\n\n<li><strong>Koncov\u00e9 dorazy (F)<\/strong> \u2014 Ov\u011b\u0159te kolmost k ose kolejnice. Ob\u011b strany se mus\u00ed dot\u00fdkat sou\u010dasn\u011b.<\/li>\n\n\n\n<li><strong>V\u0161e zdokumentujte<\/strong> \u2014 Vyfo\u0165te ka\u017ed\u00e9 m\u011b\u0159en\u00ed tak, aby byl viditeln\u00fd \u00fadaj na p\u0159\u00edstroji. Nejde o byrokracii; je to va\u0161e obhajoba, kdy\u017e n\u011bkdo pozd\u011bji bude tvrdit, \u017ee kolejnice byla nainstalov\u00e1na spr\u00e1vn\u011b a je\u0159\u00e1b mus\u00ed b\u00fdt vadn\u00fd.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"consequences-of-out-of-tolerance-conditions\">D\u016fsledky stav\u016f mimo toleranci<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Stav mimo toleranci<\/th><th>P\u0159\u00edznak<\/th><th>N\u00e1sledek<\/th><\/tr><\/thead><tbody><tr><td>P\u0159\u00edli\u0161 \u0161irok\u00fd\/\u00fazk\u00fd rozp\u011bt\u00ed<\/td><td>P\u0159\u00edruba kola neust\u00e1le t\u0159e o jednu kolejnici<\/td><td>Zrychlen\u00e9 opot\u0159eben\u00ed p\u0159\u00edruby, zv\u00fd\u0161en\u00fd odpor p\u0159i pojezdu<\/td><\/tr><tr><td>Horizont\u00e1ln\u00ed zlom (p\u0159ekro\u010den\u00ed hodnoty b)<\/td><td>Lokalizovan\u00e9 drhnut\u00ed, sly\u0161iteln\u00e9 sk\u0159\u00edp\u00e1n\u00ed<\/td><td>Ploch\u00e1 m\u00edsta na kolech, odlupov\u00e1n\u00ed hlavy kolejnice<\/td><\/tr><tr><td>Chyba nap\u0159\u00ed\u010d \u00farovn\u011bmi (p\u0159ekro\u010den\u00ed E)<\/td><td>Je\u0159\u00e1b se po uvoln\u011bn\u00ed brzd sn\u00e1\u0161\u00ed do n\u00edzk\u00e9 polohy<\/td><td>Nerovnom\u011brn\u00e9 zat\u00ed\u017een\u00ed kol, sklon ke zkosen\u00ed<\/td><\/tr><tr><td>Rozte\u010d sp\u00e1ry &gt; 0,5 mm<\/td><td>R\u00e1zov\u00fd hluk p\u0159i ka\u017ed\u00e9m pr\u016fchodu spojem<\/td><td>\u00danava lo\u017eisek kol, struktur\u00e1ln\u00ed vibrace<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Srovn\u00e1vac\u00ed tabulka d\u016fsledk\u016f podm\u00ednek mimo toleranci<\/figcaption><\/figure>\n\n\n\n<p><strong>Odkazovan\u00e9 normy (<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\">Dotaz na \u010d\u00ednsk\u00e9 normy pro je\u0159\u00e1by<\/a>):<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 10183.1-2018 \u2014 Je\u0159\u00e1by \u2014 Tolerance kol a pojezdov\u00fdch drah \u2014 \u010c\u00e1st 1: V\u0161eobecn\u011b (IDT ISO 12488-1:2012)<\/li>\n\n\n\n<li>ISO 12488-1:2012 \u2013 Je\u0159\u00e1by \u2013 Tolerance kol a pojezdov\u00fdch a posuvn\u00fdch drah \u2013 \u010c\u00e1st 1: V\u0161eobecn\u011b<\/li>\n\n\n\n<li>GB\/T 14405-2011 \u2013 Mostov\u00e9 je\u0159\u00e1by pro obecn\u00e9 \u00fa\u010dely (specifikuje tolerance kolej\u00ed t\u0159\u00eddy 2)<\/li>\n\n\n\n<li>GB\/T 14406-2011 \u2014 Port\u00e1lov\u00e9 je\u0159\u00e1by pro v\u0161eobecn\u00e9 pou\u017eit\u00ed (specifikuje tolerance kolej\u00ed t\u0159\u00eddy 2)<\/li>\n\n\n\n<li>GB\/T 27997-2011 \u2014 Port\u00e1lov\u00e9 je\u0159\u00e1by pro stavbu lod\u00ed (p\u0159ednostn\u011b t\u0159\u00edda 2 + sva\u0159ovan\u00e9 spoje)<\/li>\n\n\n\n<li>GB\/T 26475-2021 \u2014 Vykl\u00e1da\u010de lod\u00ed s drap\u00e1kem<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"An overhead crane runway rail is the most unforgiving component in the entire lifting system. A 5 mm span error across 20 metres creates a cyclic side load on the end carriages that no amount of wheel","protected":false},"featured_media":11866,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[801,793,799,798,121,802,797,800,803],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11848"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":2,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11848\/revisions"}],"predecessor-version":[{"id":11867,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11848\/revisions\/11867"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media\/11866"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media?parent=11848"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_category?post=11848"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=11848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}