A Model-Based Unloaded Test Method for Analysis of Braking Capacity of Elevator Brake

作     者：Peng, Qifeng Li, Zhongxing Yuan, Hong Huang, Guojian Li, Shanqing Sun, Xueli 

作者机构：Jinan Univ Sch Mech & Construct Engn MOE Key Lab Disaster Forecast & Control Engn Guangzhou 510632 Guangdong Peoples R China Guangzhou Acad Special Equipment Inspect & Testin Guangzhou 510180 Guangdong Peoples R China 

出 版 物：《ADVANCES IN MATERIALS SCIENCE AND ENGINEERING》 (材料科学与工程进展)

年 卷 期：2018年第2018卷第1期

页      面：1-10页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：National Natural Science Foundation of China [11032005, 11402099] Fundamental Research Funds for the Central Universities of China Science and Technology of Guangdong Bureau of Quality and Technology Supervision [2017CT21] 

主　　题：BRAKES ELEVATORS ACCURACY TRACTION (Engineering) ACCELERATION (Mechanics) 

摘      要：In order to improve the inspection efficiency and accuracy of the braking capacity of the elevator brake being used, a novel method for analyzing the full-loaded braking performance by using the unloaded braking performance is proposed, and a set of methods for measuring the braking torque is designed. Based on the analysis of the key factors that affect the mechanical performance of the elevator brake, the calculation model of the braking torque in the process of the emergency braking with the traction ratio of 2 : 1 is established, and the relationship between the braking torque and acceleration under different working conditions is analyzed. It is shown that, for the model assumed, the emergency braking torque is 1.56 times that of the static braking torque under 1.25 times the rated load. The braking torque increases linearly with the increase of braking acceleration. An elevator model being used is tested and calculated. The experimental results show that the braking acceleration measured by the experiment is 11.95% less than the theoretical value. And the analysis shows that, comparing with the traditional test method, the braking torque test method designed in this paper is more accurate and safe.