1. Principios mec\u00e1nicos fundamentales
La plataforma elevadora de tijera se basa en una estructura de brazos en forma de X para lograr la elevaci\u00f3n y el descenso verticales. Varios conjuntos de varillas met\u00e1licas est\u00e1n articulados mediante ejes de pasador para formar una unidad de tijera extensible. La potencia empuja el punto de articulaci\u00f3n del brazo de tijera para que se expanda hacia fuera o se retraiga hacia dentro, convirtiendo la fuerza horizontal en la fuerza de elevaci\u00f3n vertical de la plataforma, manteniendo la estabilidad horizontal de esta durante todo el proceso y aprovechando el principio de la palanca para amplificar el empuje, lo que permite elevar y bajar cargas pesadas con un motor de baja potencia.<\/p>\n\n\n\n
2. Principio de funcionamiento de los sistemas de transmisi\u00f3n de potencia convencionales
Accionamiento hidr\u00e1ulico (el m\u00e1s utilizado): el motor acciona la bomba hidr\u00e1ulica para generar aceite a alta presi\u00f3n, que entra en el cilindro hidr\u00e1ulico a trav\u00e9s de v\u00e1lvulas solenoides, v\u00e1lvulas de regulador, etc., y empuja el v\u00e1stago del pist\u00f3n para que se extienda y se retraiga, lo que hace que el brazo de tijera se mueva; Al descender, el aceite vuelve al dep\u00f3sito a trav\u00e9s del grupo de v\u00e1lvulas y estabiliza el caudal mediante la v\u00e1lvula de equilibrio para evitar que la plataforma se caiga debido a los cambios de carga.
Accionamiento por husillo: un motor paso a paso, acoplado a un reductor, hace girar el husillo, lo que impulsa la tuerca del husillo a desplazarse lateralmente y tira del brazo de tijera para completar la apertura y el cierre. Durante el dise\u00f1o, es necesario controlar el \u00e1ngulo de presi\u00f3n del mecanismo para evitar un consumo excesivo de potencia ineficaz y el desperdicio de energ\u00eda.<\/p>","protected":false},"excerpt":{"rendered":"
1\u3001 Core mechanical principlesThe scissor lift relies on an X-shaped cross scissor arm structure to achieve vertical lifting and lowering. […]<\/p>\n","protected":false},"author":1,"featured_media":135,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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