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公开(公告)号：EP3689804A1
公开(公告)日：2020-08-05
申请号：EP19155229.8
申请日：2019-02-04
申请人： KONE Corporation
发明人： LAPPALAINEN, Joni , WENLIN, Henri , SAARELAINEN, Antti , ALKULA, Petri , HURRI, Lasse , BURAKOV, Andrej , RANTA, Leena
摘要： The invention relates to an elevator safety brake unit (10b), an elevator comprising at least two safety brake units mentioned above, and a method for testing said safety brake units. Each safety brake unit comprises a frame part (11), a movable composition movably supported on said frame part, a compression spring assembly associated with said movable composition, and adapted to activate a braking by pushing said movable composition forward, and a coil assembly (16) of an electromagnet disposed in said frame part and adapted to deactivate the braking by pulling said movable composition backwards. Each movable composition comprises at least two movable elements (12), one compression spring (17) for each movable element, and at least one coil assembly (16) adapted to deactivate the braking by pulling said at least two movable elements backwards.
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2.发明公开
公开(公告)号：EP3587325A1
公开(公告)日：2020-01-01
申请号：EP18180669.6
申请日：2018-06-29
申请人： KONE Corporation
摘要： The invention relates to a method for diagnosis and/or maintenance of a brake configured to apply braking force to a hoisting machine of a transportation system. The method comprises:
- controlling the brake to start a brake control action, e.g. an opening and/or a closing action of the brake;
- monitoring the brake to detect a response of the brake to the brake control action, wherein in case of the response the response is detected in a predefined manner;
- measuring a brake operating time interval from a first point in time of starting of the brake control action until a second point in time of monitoring the brake to detect the response; and,
- if either the response has not been detected until the brake operating time interval reaches and/or exceeds a predetermined threshold or the response has been detected after the brake operating time interval reaches and/or exceeds the predetermined threshold, establishing an information indicating that an operation of the brake should be modified.
Another aspect of the invention is a computer program realizing the method and a brake apparatus configured to execute the method.
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