Vibration-signal collector of centrifugal pump

The utility model relates to a signal collection device, in particular to a centrifugal pump vibration signal collection apparatus which is composed of an experiment device, a data collector and a computer; wherein, the experiment device is characterized in that: the foundation of the experiment device is fixed with an electric machine and a centrifugal pump, while the shaft of the electric machine is connected to the pump shaft of the centrifugal pump through a clutch; and the clutch has a flange, and the foundation of the clutch is fixed with a bracket which is provided with a vertical displacement sensor in the radial direction to collect the centrifugal pump vibration signal, a horizontal displacement sensor and a axial displacement sensor; and the pump shaft bearing seat of the centrifugal pump is provided with a acceleration senor; and the radial vertical displacement sensor, the radial horizontal displacement sensor and the axial displacement sensor as well as the acceleration sensor all are connected with the data collector that is connected to the computer. The utility model has the advantages of reasonable structure, reliable performance, overall, true and effective signal collection capacity, absolutely capable of meeting the blending diagnosis requirement to the failure of the centrifugal pump.