{"id":2347,"date":"2026-02-06T00:39:29","date_gmt":"2026-02-05T16:39:29","guid":{"rendered":"https:\/\/www.takebrakes.com\/?p=2347"},"modified":"2026-02-05T11:14:04","modified_gmt":"2026-02-05T03:14:04","slug":"how-do-i-calculate-required-hoist-brake-torque-for-an-overhead-gantry-crane","status":"publish","type":"post","link":"https:\/\/www.takebrakes.com\/fr\/how-do-i-calculate-required-hoist-brake-torque-for-an-overhead-gantry-crane\/","title":{"rendered":"Comment calculer le couple de freinage n\u00e9cessaire pour un palan suspendu\/portique ?"},"content":{"rendered":"<p>Le couple de frein de la grue doit \u00eatre suffisant pour maintenir en toute s\u00e9curit\u00e9 la charge maximale et g\u00e9rer le sc\u00e9nario d'arr\u00eat le plus d\u00e9favorable. Commencez par d\u00e9terminer le couple de charge au niveau du tambour (charge \u00d7 rayon du tambour), puis tenez compte du r\u00e9eving (parties de la ligne), du rapport de bo\u00eete de vitesses et de l'efficacit\u00e9 m\u00e9canique pour refl\u00e9ter le couple requis sur l\u2019arbre de montage du frein. Pour de nombreuses grues, vous devez appliquer un facteur de s\u00e9curit\u00e9 appropri\u00e9 car les conditions r\u00e9elles incluent des charges de choc, de l\u2019usure et des variations de friction.<\/p>    <p>Si le frein est utilis\u00e9 pour un arr\u00eat dynamique (pas seulement pour maintenir), vous devez \u00e9galement prendre en compte l\u2019inertie : la masse en rotation du moteur, de la bo\u00eete de vitesses, du tambour et de la charge refl\u00e9t\u00e9e dans le syst\u00e8me d\u2019entra\u00eenement. Le frein doit absorber l\u2019\u00e9nergie d\u2019arr\u00eat sans surchauffer, donc le cycle de service (arr\u00eats\/heure) et le temps d\u2019arr\u00eat sont tout aussi importants que le couple de pointe.<\/p>    <p>Parce que le freinage de grue est critique pour la s\u00e9curit\u00e9, la s\u00e9lection finale doit \u00eatre valid\u00e9e selon les normes applicables et la classe d\u2019utilisation de la grue. En cas de doute, fournissez les d\u00e9tails de l\u2019application au fabricant du frein pour v\u00e9rification.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hoist brake torque must be sufficient to safely hold the maximum load and handle the worst-case stopping scenario. Start by determining the load torque at the drum (load \u00d7 drum radius), then account for reeving (parts of line), gearbox ratio, and mechanical efficiency to reflect the required torque to the brake\u2019s mounting shaft. For many [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[132,3],"tags":[133],"class_list":["post-2347","post","type-post","status-publish","format-standard","hentry","category-faq","category-blog","tag-overhead-or-gantry-crane"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2347","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/comments?post=2347"}],"version-history":[{"count":1,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2347\/revisions"}],"predecessor-version":[{"id":2348,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2347\/revisions\/2348"}],"wp:attachment":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/media?parent=2347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/categories?post=2347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/tags?post=2347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}