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Bluestone Powder Vertical Mill

Bluestone Powder Vertical Mill

Under the background of the current industry, based on the requirement of energy saving and emissions reduction of national policy, bluestone powder vertical mill become the trend of production of grinding, however, restricted by the spiral bevel gear production specifications, in the extended chain and double input methods such as electric motor, bluestone powder vertical mill drive force of the specifications of the development to 5 MW. Therefore, in solving the multi shunt uniform load, double planetary transmission, large size spiral bevel gear precision manufacturing technology, development prospect of large bluestone powder vertical mill transmission device is very wide.

The following is the drive device for conventional technical parameters of bluestone powder vertical mill:

  • (1) Gear transmission AGMA service factor is more than 2.5, the design life is infinite life;
  • (2) In addition to the thrust bearing, all adopt rolling bearing, and bearing design life (L10) were greater than 1 x 105 h;
  • (3) Tooth bevel gear pair with franklin root bell system, often uses the material of 17 crnimo6 high quality low carbon alloy steel, carburizing and quenching, tooth hardness greater than HRC58, precision is level 6 (ISO1328).
  • (4) Planetary gear pressure angle is 25 degrees, but also the use of 20 degrees, must coordinate the allocation of coincidence degree, the contact strength and bending strength;
  • (5) Planets and solar wheel is hard tooth surface gear carburizing and quenching, tooth part hardness is greater than HRC58, uses the tooth profile modification and tooth root shot peening technology, the precision is 6 level;
  • (6) Tooth bevel gear pair with franklin root bell system, often uses the material of 17 crnimo6 high quality low carbon alloy steel, carburizing and quenching, tooth hardness greater than HRC58, precision is level 6 (ISO1328).
  • (7) In order to ensure the safe operation of the whole product, the whole transmission system and lubrication system are equipped with monitoring, the parameters such as oil filter oil inlet and outlet of the high-pressure pump oil pressure difference, a pipeline, oil inlet flow, the oil outlet of the oil temperature, bearing temperature, vibration, carrying out continuous monitoring. The dilute oil station and the main motor adopts electrical chain, set up automatic alarm, automatic shutdown protection measures on the continuous. When the monitoring point parameters deviate from the standard value, the monitoring system will give an alarm signal or to bring the system down, so as to ensure the safe and reliable operation of the machine.

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