(1) use 3 d elastic frictional contact with the boundary element method analysis of the special program force of bending roll under the action of the bearing load characteristics, with the boundary element method and finite element method to analyze the bearing or thermal deformation, and based on this, the research and found work roll bearing partial load and listed more than each column slanting load condition;

(2) using rolling mill comprehensive since a theory created new housing constraint rod organization, in the force of bending roll and axial force by combination, can not only axial fixed roll and can guarantee from a performance;

(3) developed the housing and bending roll of the link between plunger vice instead of the original high-speed institutions, will ensure the bearing can enhance bear a and the force of bending roll ability.

(4) optimization housing bore curve, in the high speed heated deformation after the clearance of bearing the same list, ensure uniform loading.

(5) gives bearing the column radial load, work rolls to force the roller, the bearing and bearing temperature measurement technology;

The study is fundamentally solve the large rolling mill bearing the problem of short life laid a theoretical foundation, results have been used in baosteel 2050 on the strip, and effectively solved the mill combination bearings long plagued the burning of the short-lived. The field contrast test shows online, this device will be combined bearing the original partial load coefficient partial load coefficient 1.47 is reduced to 1.04; The original partial load rate decreased by more than 80%, the imported German SKF combination bearing life 3209 hours by increased to 10670 hours, domestic wafangdian combination bearings by 1300 h improving life to 4120 hours, in order to obtain a significant economic benefits, and to our country to realize large strip mill has important significance to the localization of complete sets of equipment.



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