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通风隔离阀传动机构铰链副的磨损可靠性对其运动功能的精确实现至关重要,文中提出了一种较为精确的计算其传动机构铰链副磨损可靠度的方法,首先基于应力-强度干涉模型建立铰链副磨损可靠性分析模型,然后将铰链副间隙误差看作随机变量,分别确定了许用磨损量和实际磨损量的分布情况,最后计算了磨损可靠度,为制定传动机构设计和使用维护方案提供了科学合理的建议。在确定铰链副实际磨损量的分布情况时,基于Archard磨损理论,建立了新的铰链副磨损量计算模型,通过动态仿真分析,测量并拟合获得运动和受力变化规律,并基于蒙特卡罗原理较为精确地模拟磨损量的分布,使之更加贴近实际。
The wear reliability of ventilating isolation valve hinge is very important to the accurate realization of its motion function. In this paper, a more accurate method of calculating the wear reliability of the hinge of the transmission mechanism is proposed. Firstly, a stress-strength interference model is established Hinge reliability analysis model, then the joint clearance error as a random variable, respectively, to determine the allowable wear and tear and the actual wear distribution, and finally calculate the wear reliability, in order to develop the transmission design and use of maintenance programs Provide scientific and reasonable advice. In order to determine the distribution of the actual wear amount of hinge pair, a new calculation model of hinge pair wear was established based on Archard wear theory. By dynamic simulation analysis, the law of movement and force variation was measured and fitted. Based on Monte Carlo The principle is more accurate to simulate the distribution of wear, making it more realistic.