During the use of the crusher, there will be many failures due to such and other reasons. Therefore, all aspects of protection and testing should be done before starting the crusher. This can reduce a lot of troubles and reduce the damage rate of the crusher. Many users report that their crusher will have a relatively large vibration before being forced to stop, and it will be damaged after abnormal operation for a while. So how does the crusher do a good job of detecting the vibration signal?
1. When the blades of the crusher are entangled by impurities in the water and the impeller of the pump is out of balance, it will cause severe vibration of the pump. The piezoelectric vibration sensor is connected to the pump to detect the vibration of the submersible sewage pump in time, so as to understand Whether the sewage pump is operating normally. The sensor is composed of a spring, a mass piezoelectric piece and a base. The base of the sensor is rigidly fixed near the bearing between the submersible pump motor and the submersible pump to sense the mechanical vibration of the pump.
2. When the sensor is subjected to vibration, since the stiffness of the spring is quite large and the mass of the mass is relatively small, it can be considered that the inertia of the mass is very small. Therefore, the mass feels the same vibration as the sensor base and is subject to the direction of acceleration. The action of the opposite inertial force, in this way, the mass has an alternating force proportional to the acceleration acting on the piezoelectric element. Because the piezoelectric element has a piezoelectric effect, it generates alternating charges on its two surfaces.
3. In order to detect the information of the crusher in real time, temperature sensors, vibration sensors, oil-water probes for water leakage detection, float switches, etc. are selected, and the pump and motor are monitored and protected through the control circuit. It is also hoped that the majority of users can realize that during the operation of the submersible sewage pump, the detection signal of the working condition is an information carrier that reflects the normal or abnormal operation of the pump, and an appropriate detection method is an important condition for finding fault information.