According to the current industry background, based on the requirements of energy conservation policies, become the production vertical grinder grinding, however, spiral bevel gear production of a variety of restrictions trend in the extended chain and dual input methods, such as motors, development of standards, 5 MW vertical grinder driving force. Thus, in addressing the multi-bypass uniform load, Prospect double planetary transmission, large-sized spiral bevel gear precision manufacturing technology, large vertical mill gear is very broad.

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The following is a drive unit for a conventional vertical rolling mill technical parameters:

(1) gears AGMA Service Factor exceeds 2.5, the design life is infinite life;

(2) In addition to the thrust bearing, all rolling bearing, and bearing design life (L10) greater than 1 × 105 h;

(3) Bevel gear pair with Franklin root bell system, 17 crnimo6 quality low-carbon steel commonly used, carburizing, tooth hardness greater than HRC58 larger materials, precision of 6 (up to ISO1328) level.

(4) of the planetary gear pressure angle of 25 degrees, but also the use of 20 degrees, must be coordinated allocation of coincidence degree, the contact strength and flexural strength;

(5) the planets and the sun gear is hardened gear carburizing, tooth hardness greater than HRC58 above, using a modified tooth and root shot technology, the precision is 6;

(6) Bevel gear pair with Franklin root bell system, 17 crnimo6 quality low-carbon steel commonly used, carburizing, tooth hardness greater than HRC58 larger materials, precision of 6 (up to ISO1328) level.

(7) In order to ensure the safe operation of the product, the entire transmission system and lubrication system is equipped with a monitor, parameters such as inlet and outlet pressure difference between the high-pressure oil pump oil filter oil pipeline, oil inlet flow of oil out of the oil mouth, bearing temperature, vibration, continuous monitoring. Lubrication oil station and the main motor electronics chain, has established automatic alarm, continuous automatic shutdown protection measures. When monitoring point parameter values ​​deviate from the standard, the monitoring system will give an alarm or shut down the system, thus ensuring the safe and reliable operation of the machine.

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