Rolling mill intermediate roll alternating motion off-line detection platform

Abstract

The invention discloses a rolling mill intermediate roll alternating motion off-line detection platform. The platform comprises a base, a motor, an imitated intermediate roll, a translation oil cylinder, a intermediate roll coupling device and a coupling oil cylinder, wherein the motor, the imitated intermediate roll, the translation oil cylinder, the intermediate roll coupling device and the coupling oil cylinder are mounted on the base, a motor shaft of the motor is connected with one end of the imitated intermediate roll through a coupler, the other end of the imitated middle shaft is connected with the output end of the intermediate roll coupling device, the input end of the intermediate roll coupling device is connected with a piston rod of the coupling oil cylinder, the motor shaft and the intimated intermediate roll are coxially arranged, the axis directions of the motor shaft and the intimated intermediate roll are consistent with the driving direction of the coupling oil cylinder, the bottom of the intermediate roll coupling device is connected with a piston rod of the translation oil cylinder through a connecting support, and the translation oil cylinder is mounted on a machine base through an oil cylinder supporting base. According to the platform, the intermediate roll coupling device and a fitting intermediate roll are combined according to actual working conditions of a rolling mill, equipment faults are pre-judged in advance by simulating disassembly and assembly and rolling operation of the intermediate roll, and the online running precision and stability ofthe intermediate roll are improved.

Description

technical field [0001] The invention relates to the field of metallurgical steel rolling machinery, in particular to an off-line detection platform for roll shifting in the middle of a rolling mill. Background technique [0002] The CVC rolling mill is the most advanced rolling equipment in the world at present. Through the roll shifting mechanism, the upper and lower shifting rolls can be moved axially synchronously, and a continuously changing positive and negative crown profile can be produced between the rolls, and the roll gap crown can be changed arbitrarily. Requirements, so as to achieve the purpose of precisely controlling the strip shape and improving the quality of rolled products. As the core part of cold-rolling large-scale rolling mill shape control—the intermediate roll shifting device, it uses three hydraulic cylinders to realize three different position switching of roll shifting position, connecting position and rolling position. When it is necessary to ch...

AI Technical Summary

Problems solved by technology

Due to the complex structure of the middle shifting roller connection device, high precision requirements, online disassembly and assembly are limited by space, it is difficult to repair and debug, and it is often difficult to meet the equipment precision requirements

If the assembly accuracy is not enough, the roll shifting connection device may not work properly, the locking pin cannot be normally clutched, and the intermediate roll and the roll shifting device cannot be connected normally after the roll change, which will cause the mill to stop due to failure

The structure of the existing intermediate roll shifting system of the rolling mill is complex, and the connection between the intermediate roll and the coupling device is not good after the online roll change, resulting in the three states of the rolling mill shifting rolling position, non-rolling position and roll changing release position not working normally, resulting in the on-line failure of the rolling mill. Downtime

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