一种轨道式推移质自动加沙器的设计

摘要

介绍一种轨道式推移质自动加沙器的设计。装置由轨道和加沙器两部分组成，加沙器包含运动小车、盛沙容器、控制系统、输入输出四部分组成。通过设置工作参数可使行走速度、加沙速度连续可调。装置具备较高的自动化程度，具备缺沙、低电压报警、计算加沙率、与上位机通信等功能。装置使用PLC智能控制器作为控制核心，使用步进电机驱动设备运动，具备较好的控制精度和较强的稳定性。该装置可有效的替代人工加沙，可提高相关模型试验的试验精度和自动化程度。%A design of rail⁃mounted automatic sand feeder for bed load was introduced in this paper. The ma⁃chine consists of track and sand feeder device two parts. Sand feeder device consists of four parts ,movement ma⁃chine,sand vessel,control system and input&output. Some parameters such as moving speed and adding rate can be set. The device with high degree of automation can achieve such functions as sand shortage alarm ,low battery alarm,calculating adding rate and communication with upper computer. PLC intelligent controller is used as the core of the device,and the stepper motors are used as drive device. The device has good control accuracy and stabil⁃ity,which can replace the manual work and improve the automation degree.