1. The three roll working seat is adopted, and the main motor is irreversible. The middle upper roll and the middle lower roll pass through the steel alternately to realize multiple rolling.
2. Since the rotation direction and speed of the roll are irreversible, the low-cost high-speed AC main motor can be equipped with reducer and gear seat in the transmission device. Considering that the rolling parts of the first seat are short, the rolling times are many, and the load is very uneven, in order to balance the load of the motor and reduce the capacity of the motor, a flywheel is added between the reducer and the motor.
3. Most 300 section steel rolling mills need to open and roll pieces, and have the characteristics of one machine with multiple functions. Therefore, the rolling mill urgently needs strong capacity and stiffness. In addition, because varieties often need to be replaced, it is necessary to consider the convenience of replacing rolls in the mill structure.
4. The position is convenient for changing rollers. The three rollers are connected by plum blossom shaft or universal joint.
Since the development of rolling mill, many industrial products in the market are produced directly or indirectly. The future development of rolling mill is to eliminate the labor cost in rolling mill production. All we know is that steel is produced by steel mills. In fact, rolling mill is the most critical equipment of iron and steel enterprises. The rolling mill has promoted the development of many industries, not limited to construction, automobile manufacturing, shipbuilding, aerospace, civil products and so on.
