Optimization of leakage detection method for hydraulic cylinder considering oil temperature
Hydraulic cylinders usually determine whether the leakage inside the hydraulic cylinder is qualified by pressure drop detection method to when leaving the factory.However,for hydraulic cylinders of different specifications,the same performance indicators are commonly used at different temperatures.The internal leakage detection method for hydraulic cylinders specified by national standards does not take into account factors such as oil temperature,oil dynamic viscosity,and hydraulic cylinder extension and retraction volume change.So this paper proposes an optimized pressure drop method to detect internal leakage of hydraulic cylinders.It deduces the mathematical expression of hydraulic cylinder leakage and pressure drop by adding the temperature correction function to the hydraulic cylinder leakage function expression fitted from the polynomial.The results show that the optimized pressure drop method,compared to traditional pressure drop detection methods,can more quickly and relatively accurately test whether the internal leakage of hydraulic cylinders meets the factory requirements,and it is more suitable for a large quantities of hydraulic cylinders factory testing in the metallurgical industry.
internal leakagepressure drop detection methodhydraulic cylinderoptimized pressure drop methodmetallurgical industry
万方数据
维普
