公开(公告)号：US20170015536A1

公开(公告)日：2017-01-19

申请号：US15301675

申请日：2014-05-13

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Maya Irie ,  Hitoshi Ota ,  Tomokazu Hoshinoo

IPC分类号： B66D5/28 ,  B66D5/12 ,  B66B5/00 ,  F16D65/28 ,  B66B11/04

CPC分类号： B66D5/28 ,  B60T13/04 ,  B60T13/38 ,  B66B5/00 ,  B66B11/04 ,  B66D5/12 ,  B66D5/26 ,  F16D65/186 ,  F16D65/28 ,  F16D2121/04 ,  F16D2121/10 ,  F16D2121/14 ,  F16D2125/10

摘要： A brake device for an elevator hoisting machine includes: a rod movable in an axial direction; a plurality of pistons provided to the rod so as to be arranged side by side in the axial direction; a cylinder configured to accommodate each of the pistons therein and including a pressure control chamber formed between the cylinder and each of the pistons; a lining provided to the rod so as to be capable of coming into contact with a contacted body; and a spring device configured to press the pistons in a direction in which the lining is pressed against the contacted body. Gaps are respectively formed between at least one of the plurality of pistons and the rod and between pistons adjacent to each other. Each of the pistons is configured to be driven by a change in air pressure in the pressure control chamber.

摘要翻译： 一种用于电梯曳引机的制动装置，包括：可沿轴向移动的杆; 多个活塞，其设置在所述杆上，以沿轴向并排布置; 气缸，其构造成容纳其中的每个活塞并且包括形成在气缸和每个活塞之间的压力控制室; 提供给所述杆以能够与接触体接触的衬里; 以及弹簧装置，其构造成沿着将衬垫压靠在接触体上的方向按压活塞。 在多个活塞中的至少一个和杆之间以及彼此相邻的活塞之间分别形成间隙。 每个活塞构造成由压力控制室中的空气压力的变化驱动。