A side pressure thrust device for a vertical roll mill

Abstract

The invention discloses an edging mill side pressure thrust device. A mortar head and a mortar pad are arranged inside a thrust block body. The mortar head is fixed to one end of a lead screw througha bolt. A thrust bearing and a rotating bearing are arranged at the outer ring of the mortar head side by side, the thrust bearing is arranged at the outer side of the rotating bearing, an oil inlet is formed in the thrust block body, an oil return collecting device is welded to a back end cover, and an oil return opening is formed in the oil return collecting device. The thrust device can enablelubricating oil inside a vertical roll thrust block to smoothly pass through an oil return pipe and an oil return collecting device back to an oil tank and not to flow into a bellows.

Description

technical field [0001] The invention relates to an vertical rolling mill, more specifically to a side pressure thrust device for an vertical rolling mill. Background technique [0002] The rolling mill is the equipment to realize the metal rolling process. The rolling mill mainly includes a horizontal rolling mill and a vertical rolling mill. In the process of widening and finishing rolling, the short hydraulic stroke and AWC function are used to further improve the rectangle of the steel plate plane and the width accuracy of the rolled steel plate, and avoid lapping on both sides of the steel plate through side pressure. It can be seen that whether the vertical roller mill is normal directly affects the quality of the product. [0003] The side pressure (mechanical pressing) of the vertical roll is driven by the worm gear to drive the screw nut to realize the rapid movement of the vertical roll, thereby controlling the width of the steel plate. The leather tiger is instal...

AI Technical Summary

Problems solved by technology

[0006] However, due to the lack of positioning in the radial direction of the thrust block assembly, the head of the thrust block sags due to gravity, and the shaft seal 112 will be damaged soon. Once the shaft seal 112 is damaged, a large amount of lubricating oil will enter the leather tiger 12, and the leather tiger 12 will be damaged again. The gravity of the lubricating oil is quickly damaged, resulting in a large amount of oil leakage, and the vertical rolling mill is forced to be shut down and deactivated.

Also, due to the lack of positioning in the radial direction, the socket pad 114 is severely worn, and a large amount of worn copper will block the oil return pipe, so all the lubricating oil will enter the leather tiger and leak

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