Specific mastery of vibration characteristics of quality Steel hot rolling mill machines

In order to test the abnormal vibration of the quality Steel hot rolling mill machines in the processing plant, according to the on-site vibration data signal measured by the controller and the finite element capture of the rolling mill, according to the development of finite element simulation technology, according to the specific vibration and friction, the main setting The main rolling mill and the driving system software of the finite element solid model, as well as the main vibration mechanism and the pulse rolling mill have no response to the current, and the main drive has abnormal torsional vibration at the appropriate position during cold rolling, and the vibration in the left and right directions of the structure is relatively serious.

At present, the research results are consistent with the actual main frequency of the CPU, the measurement data signal is accurate, and the abnormal vibration frequency caused by turning can be clearly displayed, which provides theoretical significance for formulating vibration control countermeasures. When considering the vibration of the multi-layer plate rolling system software in cold tandem rolling, the interaction and variation law of longitudinal and transverse cold rolling forces are introduced, and the concept of dynamic cold rolling force is introduced. The problem of vibration reduction in the manufacturing process is established. The roll, bending stiffness and external excitation of the discrete system are established, and the coupled vibration solid model of the discrete system of quality Steel hot rolling mill machines is established, which is used for multi-limit processing of coupled vibration system software. frequency characteristics.

Through practical application, it is confirmed that when the discrete system of quality Steel hot rolling mill machines has high bending stiffness and external application, the damage of system software amplitude is significant, and there are two common areas where earthquakes are accompanied by rebound. At present, the dynamic individual behavior of discrete system coupled system software can be predicted and analyzed according to the changes of the main parameters of the opening, and the basic theory of discrete systems is used to master and verify the chaotic characteristics of the system software, generate random points of individual behavior, reduce and Thereby preventing the common impact of discrete system coupled system software.

It is now applied to the improvement of mechanical equipment. First adjust the upper and lower roll distance, then change the diameter of the steel piece, and then adjust the radial part of the upper and lower rolls according to the radial adjustment of the mechanical equipment, and replace the parts with workpieces to solve and test the tester. Master the rotational speed of the steel, and combine the cold rolling force and the springback type according to the average value of the quality Steel hot rolling mill machines, and measure the adjustment of the indoor space between the rolls in real time to ensure the accuracy of the thickness.