擒纵式缓降器的设计及仿真

发布时间：2018-06-24 05:44

本文选题：逃生缓降器 + 擒纵机构　；参考：《宁夏大学》2017年硕士论文

【摘要】：城市建筑楼层高,分布比较密集,发生火灾时,外部消防救援能力有限,需要借用逃生工具自救逃生。市场上已经存在多种逃生缓降器,其原理多为摩擦制动,重复利用率低,使用不方便且无法控制下降速度。针对现有缓降逃生装置存在的缺陷,本论文采用擒纵原理设计了一款缓降逃生装置,可实现多次重复利用,且使用者可以及时方便的应对突发状况。本论文结合擒纵机构的相关知识,借助仿真软件ADAMS进行辅助设计,完成缓降器的设计和物理样机的制作。本文的主要内容如下:(1)确定以擒纵机构作为功能核心部件的设计方案,从擒纵机构的相关知识出发,对擒纵机构的重要参数—·振动周期进行分析,为传动系统设计提供依据。(2)根据设计方案进行擒纵式缓降器零部件的设计:完成擒纵机构、齿轮/传动轴、钢丝绳/卷筒的设计与校核以及轴承/螺栓等零件的选型,为仿真和物理样机的制作提供依据。(3)依据擒纵式缓降器的设计参数,进行仿真模型建模,利用ADAMS进行仿真分析:通过仿真得到擒纵式缓降器的动力学特性并分析;将擒纵机构柔性化,得到卡摆和擒纵轮的应力应变图。(4)根据修正后的缓降器设计参数制作缓降器的物理样机,进行功能性试验,对存在的不足进一.步修正。通过零部件设计与校核/ADAMS辅助设计/物理样机试验的结果来看,本文设计的擒纵式缓降器不仅满足降速的功能要求,而且具有较高的安全性,可以应用于高楼缓降逃生或登山攀岩等。
[Abstract]:The city building has high floor and dense distribution. When fire occurs, the ability of external fire fighting and rescue is limited, so it is necessary to use the means of escape to save and escape. There are many kinds of escape retarders in the market, the principle of which is friction brake, the rate of repeated utilization is low, the use is inconvenient and the falling speed can not be controlled. Aiming at the defects of the existing escape devices, this paper designs a escape device based on escapement principle, which can be reused many times, and the user can respond to the sudden situation in time and convenience. This paper combines the relative knowledge of escapement with the aid of simulation software Adams to complete the design of the retarder and the manufacture of the physical prototype. The main contents of this paper are as follows: (1) to determine the design of escapement as the core functional component, starting from the relevant knowledge of escapement mechanism, to analyze the vibration cycle, which is an important parameter of escapement mechanism. Provide the basis for the design of transmission system. (2) according to the design scheme, the design of escapement device parts: complete escapement mechanism, gear / drive shaft, steel rope / reel design and check, as well as bearing / bolt type selection, etc. (3) according to the design parameters of escapement retarder, modeling the simulation model, using Adams for simulation analysis: get the dynamic characteristics and analysis of escapement retarder by simulation; The flexible escapement mechanism is used to obtain the stress-strain diagram of the swing and escape wheel. (4) according to the modified design parameters of the retarder, the physical prototype of the retarder is made, and the functional tests are carried out. Step correction. According to the results of parts design and verification / physical prototype test, the escapement retarder designed in this paper not only meets the functional requirements of speed reduction, but also has high safety. It can be used in high buildings to escape slowly or climb rock and so on.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH211.6

【相似文献】