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    • 10. 发明申请
    • BUSHING WEAR SENSING DEVICE
    • 布料磨损感应装置
    • WO2013152807A1
    • 2013-10-17
    • PCT/EP2012/056814
    • 2012-04-13
    • AKTIEBOLAGET SKFJORDAN, JosephineZIEGLER, Sebastian
    • JORDAN, JosephineZIEGLER, Sebastian
    • F15B15/14F16J15/32G01B7/02
    • F15B15/1461F16J15/3296G01B7/023G01B7/144
    • A condition monitoring system for a cylinder bushing, such as a hydraulic cylinder bushing, comprising at least one electrically conductive wire (220, 222); each wire formed into an annular ring shape. The electrically conductive wire(s) (220, 222) are embedded within a dielectric ring (210) being positioned concentrically about a bushing aperture (138) passing therethrough forming a bushing condition monitoring ring (200). The monitoring ring (200) is integrated within a bushing (136) for use within a hydraulic cylinder (100). The electrically conductive wire(s) (220, 222) are provided in electrical communication with a processing device (400) which monitors a condition capacitance (260) created between each electrically conductive wire(s) (220, 222) and a shaft (130) passing through the bushing aperture (138). A reference capacitance (262) can be obtained between each pair of adjacently located electrically conductive wire(s) (220, 222). The system monitors a change in condition capacitance (260) to determine the condition of the bushing (136).
    • 一种用于诸如液压缸衬套的气缸衬套的状态监测系统,包括至少一个导电线(220,222); 每条线形成环形。 所述导电线(220,222)嵌入介电环(210)内,所述电介质环(210)同心地位于穿过其的套管孔(138),形成衬套状态监测环(200)。 监控环(200)集成在衬套(136)内,用于在液压缸(100)内使用。 导电线(220,222)设置成与处理装置(400)电连接,处理装置(400)监测在每个导电线(220,222)和轴(220,222)之间产生的状态电容(260) 130)穿过衬套孔(138)。 可以在每对相邻的导电线(220,222)之间获得参考电容(262)。 系统监测状态电容(260)的变化,以确定衬套(136)的状态。