Temperature Field Analysis Of The Guide Rollers And Guide And Guard The Cooling System Of Research And Design

In the Iron and Steel industry, roll guide equipment is a part in rolling product line. But the average service life of guide equipment is only six hours because of working at 900-1100℃ and severe cooling condition. In this background, the following research was engaged in:Firstly, the form and reason of guide equipment's failure was analyzed. The failure form takes on guide roller wear, guide roller crack and bearing invalidation. The reason of guide equipment's gearing failure lie in the insufficient cooling of the guide roller.Secondly, the roller thermal equation was introduced, and by dint of ANSYS the roller thermal field in no cooling, insufficient cooling and sufficient conditions was analyzed, which premises the heat-sink design and bearing working temperature.Thirdly, the roller mechanics equation was introduced, and by dint of ANSYS the radial force that roll steel force in roller was work out, which provides the premises to count the bearing service life.Fourthly, the service life of the using guide equipment and that of the designed one were count. The calculative life of the using tallies with the fact, and this proves the rationality of the thermal and mechanics analysis; the service life of the designed can reach the expectation, and this demonstrates the feasibility of the project.Fifthly, the cooling system of the equipment which can cool the both roller ends and the bearing was designed, and the other parts of the equipment are also designed.Finally, the locale experiment of new equipment was done, and the result shows that the performance of the new guiding equipment is excellent, and the equipment's service life is 2.5 times longer than that of the present using equipments. So the study offer a new design method of guiding equipments and the study will bring great economic and sociality achievement.