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The power of the motor of tire recycling machine, according to the power of the motor of tire recycling machine to select the appropriate frequency converter, the power of the general frequency converter should be the same as the power of the ordinary motor or a large level, for example, 11KW motor, should choose 11KW or 15KW (best) inverter.
Optimal operation of ordinary motors
The optimal operating frequency of the ordinary motor design is 50 - 60Hz. Long-term operation at low speed is a damage to the life of the motor of waste tire shredder itself. In addition, the heat dissipation of the motor of tire shredder itself is also a problem.
Sometimes in order to get a lower speed, there is no speed reducer. Someone used a 400:1 reducer to drive, and it seems that the low speed end is slower than the snail. The reducer is rigid, and the optical inverter sometimes cannot meet the requirements. At the same time, it is not recommended that the inverter run at 20 Hz for a long time to obtain a low speed.
Why is the inverter to prevent long-term operation below 20 Hz? (1) Because the speed is too low, the heat dissipation effect of the fan is very poor, and the frequency conversion speed is constant magnetic flux. When the frequency is low, the voltage is very low. To maintain constant torque current is very large, heat is very large, heat dissipation is very poor, it is extremely unfavorable to the motor of tire shredder, it is also very unfavorable to the inverter. (2) The price ratio of the reducer and the inverter is very different. The reducer is generally calculated at one hundred yuan per kilowatt, and the inverter is calculated to be about two thousand yuan per kilowatt, so the inverter cannot be replaced unless it is particularly necessary. Reducer.
In general, the frequency converter is used to replace the flow valve to control the flow of liquid and gas with large changes. It can save huge losses of the valve, and can recover the investment within half a year. It has the promotion value; then the machine that needs speed regulation, such as the spindle for machine tools. Frequency control (spindle stepless speed regulation), if you do not need speed regulation, it is not necessary to use the inverter.