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通常岸桥起升机构中的减速箱会因为连续运作、负荷较大而发热,如果散热不当会大大减少其寿命。为了对起升机构中的减速箱的散热状况进行实时在线的评估,需要知道对其散热影响较大的参数,并以此来判断散热状况。为得到影响参数,从最简单的工况——工作中的停机状态着手,采用集总热容法对减速箱散热模型进行研究,得到曲线拟合的依据并通过散热机理找到影响散热的关键因素,为了验证这些因素对减速箱散热的实际影响,采用控制变量法对实际温度数据进行计算分析。借助Origin函数绘制软件对减速箱实际温度数据进行指数拟合,拟合出二次指数函数的模型,得到函数参数,结合影响因素进行规律性分析,为以后散热因素参数化打下基础。
Usually quayside crane gear box will be due to continuous operation, the load is large and fever, if the heat is not properly reduced will greatly reduce its life. In order to evaluate the cooling status of the gearbox in the hoisting mechanism in real time online, it is necessary to know the parameters which have a great influence on the heat dissipation of the gearbox in order to judge the cooling condition. In order to obtain the influence parameters, starting from the simplest working condition - the stop state in work, the lumped model of heatsink was studied by lumped heat capacity method, and the basis of curve fitting was obtained and the key factors affecting the heat dissipation were found through the heat dissipation mechanism , In order to verify the actual impact of these factors on the gearbox heat dissipation, the control variable method is used to calculate and analyze the actual temperature data. With the help of Origin function drawing software, the actual temperature data of gearboxes are exponentially fitted, the model of quadratic exponential function is fitted, and the function parameters are obtained. Regular analysis of influencing factors is combined to lay the foundation for the parameterization of heat dissipation factors in the future.