Cold-rolling flying shear synchronous connection shaft device and manufacture method

Abstract

The invention relates to a cold-rolling flying shear synchronous connection shaft device and a manufacture method, and the device is fixed between frames on two sides of a cold-rolling flying shear. The device is characterized by comprising three sections of shafts which are connected in linear mode, and a second section of shaft is located in the middle of a first section of shaft and a second section of shaft and is connected with the shafts at two ends of the second section of shaft through flanges. By means of a synchronous connection method, the cold-rolling flying shear synchronous connection shaft device and the manufacture method change a single long shaft connection method into a mutual connection method among three sections of independent shafts, well solve the problem of maintenance difficulties caused by the single long shaft connection method under the condition of ensuring coaxiality and shearing strength and precision, and has good practical operability.

Description

technical field [0001] The invention relates to a synchronous connecting device and a manufacturing method, in particular to a flying shear synchronous connecting shaft device and a manufacturing method suitable for the metallurgical cold rolling process. Background technique [0002] The cold rolling flying shear is one of the important equipments in the cold rolling production line. It is arranged behind the pinch rolls and used to cut off the head and tail of the strip. It has a segmentation function, and its working performance directly affects the production efficiency of the rolling line and the quality of the product cut. With the development of continuous rolling mills, flying shears have been used more and more widely. [0003] In the traditional design, in order to ensure that the upper and lower tool holders on the left and right sides of the frame can run synchronously when cutting wide-sized strip steel, a synchronous mechanism composed of a complete long axis ...

AI Technical Summary

Problems solved by technology

It is difficult to process a single long axis, and the accuracy is difficult to guarantee

(2) It is difficult to disassemble and assemble on site, which is not conducive to daily maintenance

Since a long axis runs through the entire frame, and parts such as bearings and seals are distributed on the long axis, once damage occurs during work or a certain part on one side of the frame (even a seal) When replacing, the left and right racks must be opened at the same time, and then the specified parts are replaced, and the disassembly workload is relatively large

And every time the replacement is completed and the long shaft and the parts on it are installed, the alignment inspection must be performed again

Therefore, this single long-axis connection method is not conducive to the daily maintenance of the cold-rolled flying shears, and seriously affects the normal work of the flying shears, reducing the production capacity of the cold-rolled processing line

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