Thick plate rolling mill filled with particle damping and filling method of thick plate rolling mill

Abstract

The invention discloses a thick plate rolling mill filled with particle damping and a filling method of the thick plate rolling mill. The rolling mill comprises rolling mill beams, a rolling mill house, an exhaust device, the particle damping and a blind plate. The rolling mill comprises the upper rolling mill beam and the lower rolling mill beam. A particle damping filling space is formed by the upper rolling mill beam, the lower rolling mill beam and the rolling mill house. The exhaust device is arranged on the upper rolling mill beam. The exhaust device communicates with the particle damping filling space. The lower rolling mill beam is provided with the blind plate. The blind plate is arranged in the particle damping filling space. By the adoption of the thick plate rolling mill filled with the particle damping and the filling method, the modal damping ratio of a rack in the horizontal direction and the vertical direction can be increased effectively, the attenuation amount of vibration energy on the transmission path of the rolling mill rack is increased greatly, the fatigue failure of related parts of the rolling mill is restrained effectively, the quality, accuracy and productivity of products are further improved, the downtime maintenance time is shortened greatly, and therefore huge economic benefits are generated.

Description

technical field [0001] The present invention relates to a device and method for suppressing vibration of a rolling mill, and more particularly, to a thick plate mill filled with particle damping and a filling method thereof. Background technique [0002] During the production process of the 5m thick plate finishing mill, the vibration caused by biting steel, throwing steel, impact, electrical, lubrication, etc. will affect the quality and precision of the product, and the severe vibration will even cause the components of the rolling mill rack system, the main drive System parts and hydraulic system parts damage accidents seriously affect production and cause huge economic losses. Various forms of vibration may occur during the rolling process. According to the different load transmission systems, the vibration phenomenon on the 5m thick plate finishing mill can be divided into two categories, one is the vibration of the vertical system of the rolling mill, and the other is ...

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Problems solved by technology

[0005] (2) If the process and equipment parameters change during production, it will cause the imbalance of metal flow balance and cause the fluctuation of strip tension

[0006] (3) Vibration caused by friction and lubrication: In the rolling mill system, the upper and lower work rolls may appear asynchronous rolling after rolling for a period of time

[0009] These two patented technologies are designed to fill particle damping before manufacturing, and they are filled in a closed space. This has shortcomings. The particle damping will be rubbed and collided by vibration, and the energy generated will generate heat. The heated air in the closed space will expand. At this time, if there is continuous large vibration, it will be very dangerous. Not only can it not reduce the vibration, but it will also increase the vibration, which will cause serious deformation of the body.

[0010] Therefore, these designs of the prior art can only be that the vibration is small and discontinuous, the vibration of the machine tool and the brake is very small, and the vibration of the brake only has vibration when braking, so it is discontinuous

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