下运带式输送机盘式制动器液压系统设计及研究

Design and Research of Hydraulic System for Disc Brake of Downward Belt Conveyor

基于下运带式输送机的制动要求,结合使用工况,设计基于电液比例溢流阀的盘式制动器液压系统,对液压系统最大工作压力、最大工作流量等关键参数进行计算,对电液比例溢流阀、蓄能器等关键元件进行选型,设计合理可靠的盘式制动系统液压站;结合液压系统的工作原理,对不同工况下制动系统的动作指令进行详细的设计和阐述;利用AMESim搭建基于电液比例溢流阀的盘式制动器液压系统,探究系统的动态响应特性。结果表明:设计的盘式制动器液压系统具有较好的启动特性,能够很好地满足下运带式输送机的使用要求。

Based on the braking requirements of the downward belt conveyor and combined with the operating working conditions,design a disc brake hydraulic system based on electro-hydraulic proportional relief valve.Calculate key parameters such as the maximum working pressure,maximum working flow rate and others of the hydraulic system,select key components such as the electro-hydraulic proportional relief valve,energy accumulator and so on,and design a reasonable and reliable disc brake system hydraulic station;Combined with the working principle of the hydraulic system,the action instructions of the braking system under different working conditions are designed and explained in detail,a disc brake hydraulic system is built based on electro-hydraulic proportional relief valve using AMESim,and the dynamic response characteristics of the system are explored.The results show that the designed disc brake hydraulic system has relatively good starting characteristics and can well meet the requirements for the use of downward conveyor belts.