单作用齿轮齿条型液压执行器设计开发  

Design of Single Acting Rack and Pinion Hydraulic Actuator

作　　者：库才高 Ku Caigao(Eltorque Automation(Xiamen)Co.,Ltd.,Xiamen,Fujian 361000,China)

机构地区：[1]艾拓自动化(厦门)有限公司,福建厦门361000

出　　处：《机电工程技术》2022年第6期180-184,共5页Mechanical & Electrical Engineering Technology

摘　　要：单作用齿轮齿条型液压执行器是一种将齿条的直线运动转化为齿轮的旋转运动的执行机构,当失去动力源时,该机构可以进行自动关闭阀门,具有结构简单、高度体积小、输出扭矩大、安装简便、造价低等优点,广泛应用于船舶行业通风系统中。通过数学模型建立了在满足执行器初始状态下能输出160 N·m时,齿轮齿条的机械结构、齿数、模数等参数,再根据执行器的全开与全关位置时的输出扭矩选择碟簧的组合方式及型号参数,运用数学模型建立执行器在一个动作过程中所移动的距离及实际容积大小,通过数学模型核算油缸缸筒在最高压力情况下的壁厚强度要求,最后利用三维软件建立执行器的虚拟样机模型,按照相应的图纸要求实际加工制造出样品,依据实验得到样品的扭矩、耐压、泄漏等数据,为数学模型的建立及参数的选择准确性提供依据。The single acting rack and pinion hydraulic actuator is a hydraulic actuator which converts the linear motion of the rack into the rotary motion of the gear. When the power source is lost, the valve will close automatically. It has the advantages of simple structure, small volume, large output torque, simple installation and low cost, it is used in marine industry ventilation system widely. Based on the initial output torque was 160 N·m, the mechanical parameters of pinion and rack could be calculated, according to the output torque when the actuator was fully open and fully closed, disc spring parameters and the volume were calculated. According to the parameters, by mathematical modeling,the wall thickness strength of the oil cylinder was calculated. After establishing the sample by using three-dimensional software, according to the experiment, the torque, pressure, leakage and other data of the sample were obtained. It provides the basis for the accuracy of design parameters.

关 键 词：单作用液压执行器 齿轮齿条 碟簧 扭矩 

分 类 号：TH137[机械工程—机械制造及自动化]