Un frein qui frotte cr\u00e9e une friction continue lors du mouvement, provoquant de la chaleur et une usure rapide. Les sympt\u00f4mes typiques incluent des bo\u00eetiers de frein ou des roues\/disques de frein exceptionnellement chauds, une odeur de br\u00fbl\u00e9, une vitesse de d\u00e9placement r\u00e9duite, un courant moteur plus \u00e9lev\u00e9, des alarmes fr\u00e9quentes de surcharge VFD, et une usure acc\u00e9l\u00e9r\u00e9e des garnitures. Vous pouvez \u00e9galement entendre un bruit de frottement ou ressentir une r\u00e9duction de la douceur lors du d\u00e9placement du chariot ou du pont. Sur les palans, le freinage peut entra\u00eener une mauvaise performance de levage et contribuer \u00e0 la perte de frein lors d\u2019un arr\u00eat d\u2019urgence.<\/p>
Les causes racines courantes incluent un jeu d\u2019air\/\u00e9cartement incorrect, une force de d\u00e9blocage insuffisante (tension faible, pression hydraulique faible, probl\u00e8mes d\u2019alimentation en air), des broches\/roulements bloqu\u00e9s, un mauvais alignement, ou une interf\u00e9rence m\u00e9canique. Dans les syst\u00e8mes \u00e9lectro-hydrauliques, des probl\u00e8mes de course du propulseur ou des fuites peuvent emp\u00eacher une lib\u00e9ration compl\u00e8te.<\/p>
Les r\u00e9parations commencent par le verrouillage et la mesure : confirmer les jeux corrects, v\u00e9rifier la pression\/tension de d\u00e9blocage, contr\u00f4ler la course du propulseur, et inspecter les joints m\u00e9caniques pour la corrosion ou le blocage. Le freinage est un probl\u00e8me de s\u00e9curit\u00e9 car il peut entra\u00eener une surchauffe et un couple impr\u00e9visible \u2014 il faut le traiter rapidement.<\/p>","protected":false},"excerpt":{"rendered":"
A dragging brake creates continuous friction during motion, causing heat and rapid wear. Typical symptoms include unusually hot brake housings or brake wheels\/discs, burning smell, reduced travel speed, higher motor current, frequent VFD overcurrent alarms, and accelerated lining wear. You may also hear rubbing noise or feel reduced smoothness during trolley or bridge travel. On […]<\/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-2370","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\/2370","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=2370"}],"version-history":[{"count":1,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2370\/revisions"}],"predecessor-version":[{"id":2395,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2370\/revisions\/2395"}],"wp:attachment":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/media?parent=2370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/categories?post=2370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/tags?post=2370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}