The invention discloses an ascending overspeed protection device for a heavy-load fire-fighting explosion-proof elevator, and relates to the technical field of heavy-load fire-fighting explosion-proof elevators. The ascending overspeed protection device of the large-load fire-fighting explosion-proof elevator comprises a base, a braking assembly and a speed limiting assembly, an upper top plate is arranged at the top of the base, an elevator car is arranged between the base and the upper top plate, the braking assembly is arranged on the elevator car, and the braking assembly comprises a fixing box, a threaded column, a threaded block, an inserting plate and a speed measuring instrument. A threaded block is installed on the threaded column in a threaded mode, an inserting plate is fixedly installed at the top of the threaded block, a speed measuring instrument is fixedly installed at the top of the fixed box, and the speed limiting assembly is arranged on the elevator car. Through cooperative use of the braking assembly and the speed limiting assembly, the friction clamping plate can provide a preliminary speed reduction effect when the descending speed of the elevator is high, then stronger braking is conducted through the inserting plate, the speed is further reduced, the elevator is stopped finally, the more stable braking process is achieved, and impact and vibration caused by sudden stop are reduced.
本发明公开了一种大载重消防防爆电梯上行超速保护装置,涉及大载重消防防爆电梯技术领域。该大载重消防防爆电梯上行超速保护装置,包括底座、制停组件和限速组件,底座的顶部设置有上顶板,底座和上顶板之间设置有电梯厢,制停组件设置于电梯厢上,制停组件包括有固定箱、螺纹柱、螺纹块、插板和测速仪,螺纹柱上螺纹安装有螺纹块,螺纹块的顶部固定安装有插板,固定箱的顶部固定安装有测速仪,限速组件设置于电梯厢上。通过制停组件和限速组件的配合使用,摩擦卡板可以在电梯下降速度较高时提供初步的减速效果,然后通过插板进行更强力的制动,进一步减缓速度并最终将电梯停下,实现更加平稳的制停过程,减少因急停而造成的冲击和震动。
Upgoing overspeed protection device for heavy-load fire-fighting explosion-proof elevator
一种大载重消防防爆电梯上行超速保护装置
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B66B Aufzüge , ELEVATORS |
Overspeed protection switch, overspeed governor assembly and elevator system
Europäisches Patentamt | 2022
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