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CN108223492A 一种液压直线运动元件密封摩擦力及粘性摩擦系数测试系统及方法 无效 - 驳回

一种液压直线运动元件密封摩擦力及粘性摩擦系数测试系统及方法
摘要：
本发明属于液压测试技术领域，具体是一种液压直线运动元件密封力及粘性摩擦系数测试系统及方法。解决了解决高水基液压元件粘性摩擦力和粘性摩擦系数大小测试的问题，驱动部分包括滤器I、驱动泵、溢流阀I、电液比例方向阀、液控单向阀I、液控单向阀II、位移传感器和驱动油缸，驱动部分包括滤器I、驱动泵、溢流阀I、电液比例方向阀、液控单向阀I、液控单向阀II、位移传感器和驱动油缸，被测部分包括压力表I、蓄能器I、截止阀I、截止阀II、蓄能器II、压力表II、被测缸、拨片、行程开关I、行程开关II、单向阀I、单向阀II、电液换向阀、溢流阀II、充液泵和过滤器II。本发明可以测量不同压差和运动速度下的密封摩擦阻力和摩擦系数。
摘要（英）：

The invention belongs to the technical field of hydraulic testing, and particularly relates to a system and method for testing sealing friction force and viscous friction coefficients of a hydraulic linear moving element. The testing problems of viscous friction force and viscous friction coefficients of a high-water-based hydraulic element are solved. The system for testing the testing sealing friction force and the viscous friction coefficients of the hydraulic linear moving element is characterized in that a driving part comprises a filter I, a driving pump, an overflow valve I, an electro-hydraulic proportional directional valve, a hydraulic control one-way valve I, a hydraulic control one-way valve II, a displacement sensor and a driving oil cylinder, and a tested part comprises a pressure gauge I, an energy accumulator I, a stop valve I, a stop valve II, an energy accumulator II, a pressure gauge II, a tested cylinder, a shifting piece, a travel switch I, a travel switch II, a one-way valve I, a one-way valve II, an electro-hydraulic reversing valve, an overflow valve II, a liquid filling pump and a filter II. According to the system and method for testing the testing sealingfriction force and the viscous friction coefficients of the hydraulic linear moving element, the sealing friction resistance and the friction coefficients under different differential pressure and movement speeds can be measured.

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