The invention provides a brake device for an elevator and an inspection method of the brake device for the elevator, which can easily grasp the wear state of a bush. A brake device for an elevator is provided with: a fixed member (41) having a fixed iron core (42) and an excitation coil (43) and having an insertion hole (47) formed therein, the insertion hole having a circular cross-section; a movable iron core (44) which has a cylindrical shape and is inserted into the insertion hole so as to be able to advance and retreat; and a bush (46) provided between an outer peripheral surface (44c) of the movable iron core and an inner wall surface (47a) of the insertion hole, the movable iron core having a first end surface (44a) located on the inner side of the insertion hole and a second end surface (44b) located on the opening end side of the insertion hole, and three or more grooves (51, 52, 53, 54) formed in the outer peripheral surface of the movable iron core and arranged in the circumferential direction of the movable iron core. Each of the three or more grooves extends along a central axis (44d) of the movable iron core to reach the second end surface.
本发明提供一种电梯用制动装置以及电梯用制动装置的检查方法,其能够容易地掌握衬套的磨损状态。电梯用制动装置具备:固定部件(41),其具有固定铁芯(42)以及励磁线圈(43),并形成有截面为圆形的插入孔(47);可动铁芯(44),其具有圆柱状的形状,并进退自如地插入于插入孔;以及衬套(46),其设置于可动铁芯的外周面(44c)与插入孔的内壁面(47a)之间,可动铁芯具有位于插入孔的里侧的第一端面(44a)和位于插入孔的开口端侧的第二端面(44b),在可动铁芯的外周面形成有沿可动铁芯的周向排列的3个以上的槽(51、52、53、54),3个以上的槽分别沿着可动铁芯的中心轴(44d)延伸而到达第二端面。
Brake device for elevator and inspection method for brake device for elevator
电梯用制动装置以及电梯用制动装置的检查方法
2024-03-01
Patent
Electronic Resource
Chinese
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