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Lubricating amount adjustment device for journal bearing, journal bearing device, rotary machine, and method for adjusting lubricating amount of journal bearing
Lubricating amount adjustment device for journal bearing, journal bearing device, rotary machine, and method for adjusting lubricating amount of journal bearing
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机译:轴颈轴承的润滑量调整装置,轴颈轴承装置,旋转机械及调整轴颈轴承的润滑量的方法
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摘要
To provide a lubricant amount adjusting device for a journal bearing capable of suppressing generation of shaft vibration due to air bubbles entering between a rotating shaft and a bearing pad. SOLUTION: A magnitude of vibration of a rotary shaft 2 supported by a journal bearing 10 and a valve 102 for adjusting the amount of oil supply by oil supply units 25, 26, 27 for supplying oil to bearing pads 30, 32 is detected. Sensor for detecting the internal pressure of the housing, the pressure sensor 106 for detecting the internal pressure of the housing, and the oil supply unit 25, 26, 27 based on the magnitude and the internal pressure of the shaft vibration detected by the gap sensor 104 and the internal pressure sensor 106. And a controller 101 for controlling the valve 102 so as to adjust the amount of fuel supply. [Selected figure] Figure 2
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