Under normal conditions, the electronic belt weigher will be equipped with a set of standard electronic belt weigher motor control program when leaving the factory. When the cooling fan and excitation voltage are normal, this is completely feasible, but if the motor operates normally and the cooling fan stops or the excitation voltage is zero, serious consequences will occur. The following two cases are analyzed, which may cause the motor of the electronic belt scale to burn out.
One type: cooling fan of high-precision belt weigher motor suddenly stops rotating:
It is well known that cooling fans are used to cool DC motors. When the cooling fan stops, the internal temperature of the DC motor will gradually increase. Over time, this will result in poor contact between the brush gear and the commutator and between the armature.
The second type: the excitation signal No. 1 of the electronic belt scale motor is zero:
From the motor control theory, we can know that when the excitation circuit of the electronic belt scale motor is suddenly disconnected during operation, the diameter of the electronic belt scale motor becomes very small. At this time, not only the current is greatly increased, but also the magnetic field is severely weakened. At this time, if no measures are taken, the motor will be burned, and even the entire armature may be damaged. In this regard, we must take corresponding protective measures for the motor of the electronic belt weigher.
Knowing this, when the motor of the electronic belt weigher is burnt out and you don't know how to overcome it, you should analyze the specific problems to better understand that the belt weigher can change the combustion frequency of the motor of the electronic belt weigher.
It can be seen that in the development of classification scale, truck scale, belt scale, floor scale and other weighing industries, the reasons and solutions for the combustion of electronic belt scale motor are very obvious. Nowadays, all countries in the world attach great importance to the influence of belt deviation on belt scales. I believe that in the near future, the technology and its overcoming methods brought about by the burning of the electric motor of the electronic belt weigher will make a leap and reach a new level commensurate with its important position.
The above is what Xiao Bian shared today. I believe that you will avoid this situation after you know the reason why the motor of the electronic belt weigher was burned down.
