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采用纯机械式结构研究设计了具有良好制动功能的缓降器,避免了国内外消防用高楼救生缓降器普遍的体积大、无制动、速度不可控等问题。利用人体重力驱动摩擦块组件做旋转运动,摩擦块在离心力作用下与壳体接触并产生摩擦阻力,通过摩擦阻力的合理设置实现逃生人员下降速度的匀速控制,并增加了可以使人在紧急情况下进行悬停的结构设计。同时基于动力学理论建立了匀速下降的动力学条件方程,并基于UG/Motion验证了该方程的有效性。
Pure mechanical structure designed and designed with a good slow down function of the brake function to avoid the domestic and international fire safety tower lifesaver generally bulky, no braking, the speed is not controllable and other issues. Using human body gravity to drive the friction block assembly to make rotary motion, the friction block contacts with the shell under the action of centrifugal force to generate frictional resistance, and the uniform control of the descent speed of the evacuation personnel is realized through the reasonable setting of the frictional resistance, Under the hover structure design. At the same time, the dynamic equation of constant descent was established based on the kinetic theory, and the validity of this equation was verified based on UG / Motion.