Hydraulic pump fault diagnosis method and device
The invention discloses a hydraulic pump fault diagnosis method and device, and relates to the technical field of hydraulic pump fault diagnos.The method comprises the steps that the no-load pressure, the no-load flow, the actual pressure, the actual flow and hydraulic pump performance parameters of...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a hydraulic pump fault diagnosis method and device, and relates to the technical field of hydraulic pump fault diagnos.The method comprises the steps that the no-load pressure, the no-load flow, the actual pressure, the actual flow and hydraulic pump performance parameters of an outlet of a hydraulic pump are obtained; the performance parameters of the hydraulic pump comprise the displacement, the highest rotating speed, the theoretical flow and the rated pressure of the hydraulic pump; obtaining the volume efficiency of the hydraulic pump according to the actual flow and the theoretical flow; the no-load power of the hydraulic pump is obtained according to the no-load pressure and the no-load flow; obtaining the test power of the hydraulic pump according to the displacement, the highest rotating speed and the rated pressure; according to the actual pressure and the actual flow, the actual power of the hydraulic pump is obtained; according to the volumetric efficiency, the no-load powe |
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