| The house and rollers are the most important parts of a rolling mill. The house is subject to all kinds of forces that will happen during the rolling process. The house will face much more tests due to the fact that the huge5000mm rolling system can produce a rolling force as big as100000KN. The rollers is the direct parts that involve in the rolling process, the stress of which in the contact process can decide the making of rolling process and the choice and maintaining of the system. So the study on mechanical properties of the two is very important.I get the stress distribution of the house that works under maximum rolling load precisely using the theory of finite element analysis by the software of ANSYS. I get the point with maximum press value and explicit position, and make the positions that contain a little bigger stresses clear. With the material property of the house given by the company, I check the house on the point of strength. I get the stress of every typical position and the distortion of the house using the theory of Adopt the KeFu. I get a much presiser estimation of the stress and distortion of the house by using the traditional method and modern finite element method at the same time, which form the situation of mutual validation of the two method.The house will encounter all kinds of dynamic loads in the rolling process. In order to avoid the phenomenon of sympathetic vibration so that the house can be used reasonably, I have analyzed the modal of the house, the ten phase of natural frequency of which have been got. I got the dynamic characteristic of the house by calculating natural frequency of the house to verify the validation of the ANSYS results.I got the three D modeling of the rollers using the software of ANSYS. I got the stress distribution pictures between the working roller and balancing roller with the maximum rolling load applied to the rollers. I got the maximum stress value and its position. |
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