The invention relates to an overspeed protection safety device and a construction hoist. The overspeed protection safety device comprises a main shaft capable of being rotationally supported and a braking device, the braking device comprises a centrifugal seat and a speed limiting spring which are arranged on the outer surface of the main shaft in a sleeving mode, the centrifugal seat is provided with at least two radial side face holes evenly distributed in the circumferential direction, and the speed limiting spring is arranged in the radial side face holes. A brake block is embedded in each side face hole in a radial moving mode, and the speed limiting spring exerts radial hooping force on the brake blocks. The brake device further comprises two centrifugal seat baffles, and the centrifugal seat baffles are arranged on shaft shoulders, located on the two axial sides of the centrifugal seat, of the main shaft in a sleeved mode through inner holes of the centrifugal seat baffles respectively and fixedly connected with the centrifugal seat.
本申请涉及超速保护安全器和施工升降机。所述超速保护安全器包括能够转动地支承的主轴以及制动装置,其中,所述制动装置包括套装于所述主轴外表面的离心座和限速弹簧,其中,所述离心座具有沿圆周方向均布设置的至少两个径向的侧面孔,在每个所述侧面孔中能够径向移动地嵌入一个制动块并且所述限速弹簧向所述制动块施加径向的箍紧力。所述制动装置还包括两个离心座挡板,所述离心座挡板以其内孔分别套装在所述主轴的位于所述离心座轴向两侧的轴肩上并且与所述离心座固定连接。
Overspeed protection safety device and construction hoist
超速保护安全器和施工升降机
2024-06-21
Patent
Electronic Resource
Chinese
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