Arrangement for changing the position of roll-changing guided groove of the flattening roller

Abstract

The invention discloses a device changing the position of a leveling roller replacement guide trough, which includes an upper working roller inlet side replacing roller guide trough, an upper working roller outlet side replacing roller guide trough, a lower working roller inlet side replacing roller guide trough, a lower working roller outlet side replacing roller guide trough, and two half-arc sliding guide ways and two hydraulic drive mechanisms obliquely arranged at the opening side of the leveling machine. The upper working roller inlet side replacing roller guide trough is embedded between the two half-arc sliding guide ways; two hydraulic drive mechanisms are respectively connected with two ends of the upper working roller inlet side replacing roller guide trough and drive the upper working roller inlet side replacing roller guide trough to move up and down along the two half-arc sliding guide ways. The device changing position of a leveling roller replacement guide trough of the invention improves the stability when the guide trough replaces the working roller; meanwhile, the invention avoids the guide trough damaged by the steel strip to the most extent and improves the operation ratio of the leveling line.

Description

technical field [0001] The invention relates to a leveling roll maintenance auxiliary equipment of a leveling machine in metallurgical smelting, in particular to a device for changing the position of a leveling roll changing guide groove. Background technique [0002] The shape of thin-gauge hot-rolled plates needs to be leveled by the leveling unit to meet the needs of users. Therefore, the existing hot-rolled production lines are equipped with a four-roll leveling line, that is, figure 1 , figure 2 As shown, it includes the tempering machine archway 1, the bending roll adjustment archway 2, the upper support roll 3, the lower support roll 4, the upper work roll 5, the lower work roll 6, the anti-vibration roll 7, the screw rod 8, and the upper and lower grinding and polishing devices 9 and holding brake 10. Due to the fast production speed of the skin-passing unit (400m-500m / min), the skin-passing work rolls wear quickly and the replacement cycle is short (one set is re...

AI Technical Summary

Problems solved by technology

This device has two defects, first: the pre-roller changing device on the driving side is huge, and the longer the guide groove, the larger the storage position

Second: Because the guide groove is too long and there is no guiding device in the docking, when the guide groove is pushed out and connected with the roller changing trolley, it needs to be docked manually

[0005] 1. Since the sliding surface of the roll change guide groove bearing the gravity of the work roll is relatively narrow, the cross section of the guide groove generates an oblique support reaction force. After the guide groove is subjected to gravity, the guide groove tilts to the gravity side, and finally receives the oblique support reaction force It is the guide groove bolt fastened on the bending roll adjustment archway, which is easy to break the guide groove bolt

[0006] 2. It is necessary to replace the work roll of the tempering machine in the production process, and the roll change must have a guide groove for transition, because the installation position of the roll change guide groove on the entrance side of the upper work roll is the height of the flat steel belt between the two work rolls Only 60mm, the steel belt warping head and folded and deviation tail during production can easily damage the guide groove, directly affecting the normal production of the leveling line

[0007] 3. There are no protective measures for the roll bending adjustment archway. The reason is that the roll changing guide groove is fixed on the roll bending adjustment archway by bolts. Once the guide groove is bent by the tail of the steel belt, the guide groove will be damaged and endanger the roll bending adjustment archway. , it is necessary to disassemble and repair the archway or replace parts, which increases the workload and maintenance cost

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