Device for online detection of roller temperature of two-roller aluminum plate strip hot rolling machine

Abstract

The invention belongs to the technical field of automatic detection of metallurgy mechanical equipment, and particularly relates to a device for online detection of roller temperature of a two-rolleraluminum plate strip hot rolling machine. In order to accurately detect the temperature values of axial points on the surface of a roller, the measuring precision and efficiency are ensured, the maintenance operation is simple, and the equipment investment is small, the device comprises a movement mechanism protection cover and a sealing and closing space composed by a bearing water retaining mechanism, wherein a movement mechanism is arranged in the sealing and closing space, a detection mechanism capable of removing moisture and residual impurities on the surface of the roller is arranged onthe movement mechanism, and the running speed and a detection position of the detection mechanism is controlled by a control system element. According to the device, the online real-time detection ofthe surface temperature of the roller is realized.

Description

technical field [0001] The invention belongs to the technical field of automatic detection of metallurgical machinery and equipment, in particular to a device for on-line detection of roll temperature of a two-roll aluminum strip hot rolling mill. Background technique [0002] The temperature of hot-rolled aluminum strip rolls is affected by many factors, and it is a hot issue in the study of flatness. The change of temperature not only affects the deformation resistance, plasticity and mechanical properties of the metal, but also has an important influence on the microstructure change of the rolled piece, such as dynamic and static recrystallization and phase transformation. At the same time, the drastic change of the surface temperature of the roll Very prone to fatigue damage. [0003] The roll section cooling system is an effective means to control the roll temperature, and can effectively improve the shape quality of the hot-rolled strip. At present, the segmented coo...

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Problems solved by technology

[0005] At present, in most cases, the measurement method of the roll temperature adopts the traditional measurement method, that is, after the rolling stops, the measurement is carried out by manual detection. Low detection efficiency

[0006] Ning Haosen et al. (Patent No.: CN201260156168) invented an online temperature measurement device for the roll surface, which is an example of successful online temperature measurement of the roll; this invention can measure the temperature of the roll online, which solves the problem of traditional roll temperature measurement to a certain extent. The existing problems, and has the advantages of simple structure, convenient installation, etc., its measuring device is shown in figure a, but because there is a large amount of water vapor around the roll during the rolling process, the purging device and the temperature measuring device in this invention have certain differences This does not completely eliminate the influence of water vapor on the measurement results; it is difficult to remove impurities such as emulsion and oxides adhering to the surface of the roll with the purging device alone, and the measurement results cannot be completely identified as the true temperature of the roll surface

During the application process, it is necessary to set up measuring devices in multiple places on the track beam, which causes a large investment cost, and the position of the measuring point is fixed

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