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b=this,c=b.settings,d=a.data("menu");d||(d={},d.arrow=a.children("."+f+"_arrow"),d.ul=a.next("ul"),d.parent=a.parent(),d.parent.hasClass(f+"_parent-link")&&(d.parent=a.parent().parent(),d.ul=a.parent().next("ul")),a.data("menu",d)),d.parent.hasClass(f+"_collapsed")?(d.arrow.html(c.openedSymbol),d.parent.removeClass(f+"_collapsed"),d.parent.addClass(f+"_open"),d.parent.addClass(f+"_animating"),b._visibilityToggle(d.ul,d.parent,!0,a)):(d.arrow.html(c.closedSymbol),d.parent.addClass(f+"_collapsed"),d.parent.removeClass(f+"_open"),d.parent.addClass(f+"_animating"),b._visibilityToggle(d.ul,d.parent,!0,a))},h.prototype._visibilityToggle=function(b,c,d,e,g){function l(b,c){a(b).removeClass(f+"_animating"),a(c).removeClass(f+"_animating"),g||i.afterOpen(b)}function m(c,d){b.attr("aria-hidden","true"),j.attr("tabindex","-1"),h._setVisAttr(b,!0),b.hide(),a(c).removeClass(f+"_animating"),a(d).removeClass(f+"_animating"),g?"init"==c&&i.init():i.afterClose(c)}var 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e=0;for(var i in t)e++;return e},hideErrors:function(){this.addWrapper(this.toHide).hide()},valid:function(){return 0===this.size()},size:function(){return this.errorList.length},focusInvalid:function(){if(this.settings.focusInvalid)try{t(this.findLastActive()||this.errorList.length&&this.errorList[0].element||[]).filter(":visible").focus().trigger("focusin")}catch(e){}},findLastActive:function(){var e=this.lastActive;return e&&1===t.grep(this.errorList,function(t){return t.element.name===e.name}).length&&e},elements:function(){var e=this,i={};return t(this.currentForm).find("input, select, textarea").not(":submit, :reset, :image, [disabled]").not(this.settings.ignore).filter(function(){return!this.name&&e.settings.debug&&window.console&&console.error("%o has no name assigned",this),this.name in i||!e.objectLength(t(this).rules())?!1:(i[this.name]=!0,!0)})},clean:function(e){return t(e)[0]},errors:function(){var e=this.settings.errorClass.replace(" ",".");return t(this.settings.errorElement+"."+e,this.errorContext)},reset:function(){this.successList=[],this.errorList=[],this.errorMap={},this.toShow=t([]),this.toHide=t([]),this.currentElements=t([])},prepareForm:function(){this.reset(),this.toHide=this.errors().add(this.containers)},prepareElement:function(t){this.reset(),this.toHide=this.errorsFor(t)},elementValue:function(e){var i=t(e).attr("type"),s=t(e).val();return"radio"===i||"checkbox"===i?t("input[name='"+t(e).attr("name")+"']:checked").val():"string"==typeof s?s.replace(/\r/g,""):s},check:function(e){e=this.validationTargetFor(this.clean(e));var i,s=t(e).rules(),r=!1,n=this.elementValue(e);for(var a in s){var u={method:a,parameters:s[a]};try{if(i=t.validator.methods[a].call(this,n,e,u.parameters),"dependency-mismatch"===i){r=!0;continue}if(r=!1,"pending"===i)return this.toHide=this.toHide.not(this.errorsFor(e)),void 0;if(!i)return this.formatAndAdd(e,u),!1}catch(o){throw this.settings.debug&&window.console&&console.log("Exception 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this.currentElements.not(this.invalidElements())},invalidElements:function(){return t(this.errorList).map(function(){return this.element})},showLabel:function(e,i){var s=this.errorsFor(e);s.length?(s.removeClass(this.settings.validClass).addClass(this.settings.errorClass),s.html(i)):(s=t("<"+this.settings.errorElement+">").attr("for",this.idOrName(e)).addClass(this.settings.errorClass).html(i||""),this.settings.wrapper&&(s=s.hide().show().wrap("<"+this.settings.wrapper+"/>").parent()),this.labelContainer.append(s).length||(this.settings.errorPlacement?this.settings.errorPlacement(s,t(e)):s.insertAfter(e))),!i&&this.settings.success&&(s.text(""),"string"==typeof this.settings.success?s.addClass(this.settings.success):this.settings.success(s,e)),this.toShow=this.toShow.add(s)},errorsFor:function(e){var i=this.idOrName(e);return this.errors().filter(function(){return t(this).attr("for")===i})},idOrName:function(t){return 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O disco dentado de lona de freio é um componente vital no sistema de freio a tambor de veículos pesados, como caminhões, ônibus e carretas. Esse dispositivo desempenha um papel fundamental na distribuição uniforme da pressão de frenagem sobre as lonas de freio, garantindo assim uma frenagem suave, eficaz e segura em diversas condições de operação.
Entenda melhor o que é um disco dentado de lona de freio?
O disco dentado é uma peça circular de metal ou outro material resistente, geralmente montada dentro do tambor de freio. Ele apresenta uma série de dentes ou ranhuras em sua superfície, projetados para interagir com a superfície das lonas de freio. Esses dentes ou ranhuras permitem que o disco dentado exerça uma pressão uniforme sobre as lonas de freio durante a frenagem, garantindo uma distribuição equitativa da força de frenagem em toda a superfície das lonas.
Saiba quais são as aplicações industriais do disco dentado de lona de freio
O disco dentado de lona de freio é um componente utilizado em sistemas de freio industrial, especialmente em equipamentos que requerem frenagem precisa e confiável. Ele consiste em um disco com ranhuras ou dentes na sua superfície, nos quais são inseridas lonas de freio.
A utilização do disco dentado de lona de freio é comum em várias aplicações industriais, como:
Guindastes e equipamentos de movimentação de carga: em guindastes, guinchos e outros equipamentos de elevação e movimentação de carga, os discos dentados de lona de freio são empregados para proporcionar uma frenagem controlada e segura. Eles permitem que o equipamento pare com precisão e evite movimentos inesperados, garantindo a segurança das operações de carga e descarga.
Máquinas industriais: em máquinas industriais, como prensas, laminadores e máquinas- ferramenta, os discos dentados de lona de freio são utilizados para controlar a velocidade e parar o movimento das máquinas de forma rápida e precisa. Isso é essencial para garantir a segurança dos operadores e proteger os equipamentos contra danos causados por paradas bruscas.
Veículos industriais: em veículos industriais, como empilhadeiras, tratores e máquinas agrícolas, os discos dentados de lona de freio são empregados nos sistemas de freio para proporcionar uma frenagem eficaz, especialmente em terrenos acidentados ou em situações de carga pesada. Eles garantem que os veículos parem com segurança e evitem acidentes.
Equipamentos de mineração e construção: em equipamentos de mineração, como escavadeiras e caminhões basculantes, e em equipamentos de construção, como guindastes de torre e betoneiras, o disco dentado de lona de freio é utilizado para controlar o movimento dos equipamentos durante as operações de carga, descarga e deslocamento. Ele garante que os equipamentos parem com segurança e evitem danos às estruturas e aos materiais transportados.