In order to solve the above technical problems, the invention relates to a brake device, comprising a brake support, a brake block, a stop block assembly, a swing rod and a tension spring. The brake block is of an integrated structure, and comprises a brake block body, a force-bearing external convex portion, an articulated column, a ratchet and a limit block. The force-bearing external convex portion is used to lean the brake block against the brake support. The articulated column is used to connect the swing rod with the brake block; the ratchet is used in conjunction with a rope sheave assembly to limit the unidirectional rotation movement of the rope sheave assembly. The limit block is used in conjunction with the stop block assembly to control and change the meshing state of the ratchet and the rope sheave assembly. As thus, a pawl functional part is combined on the brake block, so that the brake block has the functions of limiting the sheave circumferential rotation movement andclamping wire ropes, the number of constituent parts of the brake device is effectively reduced, and the assembly difficulty is reduced. In addition, the invention also relates to an elevator speed governor comprising the above brake device.

    为了解决上述技术问题,本发明涉及了一种制动装置,包括制动支架、制动块、止块组件、摆杆以及拉簧。制动块为一体式结构,且其包括制动块本体、承力外凸台部、铰接柱、棘齿以及限位块。承力外凸台部用来将制动块担靠于制动支架上。铰接柱用来实现摆杆和制动块的连接;棘齿与绳轮组件配套使用,以限定绳轮组件的单向旋转运动。限位块与止块组件配套使用,以控制、变更棘齿与绳轮组件的啮合状态。这样一来,有机地将棘爪功能部中揉合于制动块上,使得制动块同时具有绳轮周向旋转运动限位和夹紧钢丝绳的功能,从而有效地减少了制动装置的组成零件数目,降低了组装困难度。另外,本发明还涉及了一种包括上述制动装置的电梯限速器。


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    Title :

    Brake device and elevator speed governor comprising same


    Additional title:

    一种制动装置以及包括它的电梯限速器


    Contributors:

    Publication date :

    2020-08-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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