{"id":45,"count":1,"description":"In an elevator system, the brake is a non-negotiable, life-critical safety component whose primary function is to hold the elevator car stationary at a floor. Elevators universally employ <strong>fail-safe, spring-applied, DC electromagnetic brakes<\/strong> that are integrated directly with the hoist motor and gearbox, known as the traction machine.    The operational principle is built around inherent safety:  <ol>   \t<li><strong>\u0627\u0644\u0627\u062d\u062a\u0641\u0627\u0638 \u0627\u0644\u062b\u0627\u0628\u062a (\u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u064a\u0629):<\/strong>\u00a0Powerful mechanical springs exert a constant clamping force on a brake disc or drum coupled to the motor shaft. This is the brake's default, unpowered state, ensuring the elevator car is securely held in place and cannot move.<\/li>   \t<li><strong>\u0627\u0644\u0625\u0635\u062f\u0627\u0631 \u0627\u0644\u0645\u062f\u0639\u0648\u0645:<\/strong>\u00a0When a user calls the elevator, the control system sends an electrical current to the brake's electromagnetic coil\u00a0<em>\u0641\u064a \u0646\u0641\u0633 \u0627\u0644\u0644\u062d\u0638\u0629<\/em>\u00a0\u064a\u0631\u0633\u0644 \u0627\u0644\u0637\u0627\u0642\u0629 \u0625\u0644\u0649 \u0645\u062d\u0631\u0643 \u0627\u0644\u0642\u064a\u0627\u062f\u0629. \u0627\u0644\u0645\u062c\u0627\u0644 \u0627\u0644\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a \u0627\u0644\u0646\u0627\u062a\u062c \u0642\u0648\u064a \u0628\u0645\u0627 \u064a\u0643\u0641\u064a \u0644\u062a\u062c\u0627\u0648\u0632 \u0642\u0648\u0629 \u0627\u0644\u0632\u0646\u0628\u0631\u0643\u060c \u0645\u0645\u0627 \u064a\u0633\u062d\u0628 \u0648\u0633\u0627\u062f\u0627\u062a \u0627\u0644\u0641\u0631\u0627\u0645\u0644 \u0648\u064a\u0637\u0644\u0642 \u0627\u0644\u0641\u0631\u0627\u0645\u0644 \u062a\u0645\u0627\u0645\u064b\u0627 \u0645\u0639 \u0628\u062f\u0621 \u062f\u0648\u0631\u0627\u0646 \u0627\u0644\u0645\u062d\u0631\u0643.<\/li>   \t<li><strong>\u062a\u0641\u0639\u064a\u0644 \u0627\u0644\u0623\u0645\u0627\u0646 \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u0641\u0634\u0644:<\/strong>\u00a0\u0639\u0646\u062f\u0645\u0627 \u064a\u0635\u0644 \u0627\u0644\u0633\u064a\u0627\u0631\u0629 \u0625\u0644\u0649 \u0627\u0644\u0637\u0627\u0628\u0642 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u060c \u064a\u0642\u0648\u0645 \u0648\u062d\u062f\u0629 \u0627\u0644\u062a\u062d\u0643\u0645 \u0628\u0642\u0637\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0639\u0646 \u0643\u0644 \u0645\u0646 \u0627\u0644\u0645\u062d\u0631\u0643 \u0648\u0645\u0644\u0641 \u0627\u0644\u0641\u0631\u0627\u0645\u0644. \u064a\u0646\u0647\u0627\u0631 \u0627\u0644\u0645\u062c\u0627\u0644 \u0627\u0644\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a \u0639\u0644\u0649 \u0627\u0644\u0641\u0648\u0631\u060c \u0648\u062a\u0639\u064a\u062f \u0627\u0644\u0632\u0646\u0628\u0631\u0643\u0627\u062a \u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0641\u0631\u0627\u0645\u0644\u060c \u0645\u062a\u0648\u0642\u0641\u0629 \u0628\u0633\u0644\u0627\u0633\u0629 \u0648\u062f\u0642\u0629\u060c \u0648\u062a\u062b\u0628\u062a \u0627\u0644\u0633\u064a\u0627\u0631\u0629 \u0628\u0645\u0633\u062a\u0648\u0649 \u0645\u0639 \u0627\u0644\u0623\u0631\u0636. \u0641\u064a \u0623\u064a \u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0646\u0642\u0637\u0627\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u060c \u064a\u062d\u062f\u062b \u0646\u0641\u0633 \u0647\u0630\u0627 \u0627\u0644\u0625\u062c\u0631\u0627\u0621\u060c \u0645\u0645\u0627 \u064a\u0636\u0645\u0646 \u062a\u0648\u0642\u0641 \u0627\u0644\u0645\u0635\u0639\u062f \u0648\u064a\u0628\u0642\u0649 \u0641\u064a \u0648\u0636\u0639 \u0622\u0645\u0646.<\/li>  <\/ol>  Crucially, this primary electromagnetic brake is distinct from the elevator's emergency \"safeties\"\u2014the separate mechanical devices that are triggered by an overspeed governor to physically grip the guide rails in the rare event of a rope failure or uncontrolled descent. Modern safety standards (such as ASME A17.1\/CSA B44) mandate extreme redundancy in the primary brake itself, often requiring dual electrical coils or mechanically independent brake calipers to ensure that no single point of failure can compromise the system's holding capability.","link":"https:\/\/www.takebrakes.com\/ar\/tag\/elevator\/","name":"\u0645\u0635\u0627\u0639\u062f","slug":"elevator","taxonomy":"post_tag","meta":[],"_links":{"self":[{"href":"https:\/\/www.takebrakes.com\/ar\/wp-json\/wp\/v2\/tags\/45","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.takebrakes.com\/ar\/wp-json\/wp\/v2\/tags"}],"about":[{"href":"https:\/\/www.takebrakes.com\/ar\/wp-json\/wp\/v2\/taxonomies\/post_tag"}],"wp:post_type":[{"href":"https:\/\/www.takebrakes.com\/ar\/wp-json\/wp\/v2\/posts?tags=45"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}