Single-shaft transmission roller detachable three-high mill

Abstract

The invention relates to the technical field of bar mills, and provides a single-shaft transmission roller detachable three-high mill. The mill comprises a rack and three shaft assemblies arranged onthe rack, wherein every two shaft assemblies form an angle of 60 degrees, the rack is of a split structure, the three shaft assemblies comprise an input long shaft assembly and two transmission shortshaft assemblies, and the transmission short shaft assemblies are connected with the input long shaft assemblies for transmission. According to the mill, by adopting the split rack, the three-high mill which is simple and reliable in transmission structure is formed by cooperation of the long shaft assembly and the short shaft assemblies, and the investment cost is greatly reduced through the simpler structure; during equipment maintenance, rollers can be quickly disassembled in a quick disassembly manner, the roller dismounting and mounting accuracy are maintained, and remounting and reuse are not affected.

Description

technical field [0001] The invention relates to the technical field of bar rolling mills, in particular to a three-roll bar-wire rolling mill, in particular to a detachable three-roll rolling mill with single-shaft transmission. Background technique [0002] At present, the commonly used bar three-roll mills in the industry include three-axis drive type and single-axis drive type. Two-axis rotation realizes the rolling of bars. [0003] When the three-axis drive rolling mill is rolling, the rolling force of the rolled piece is balanced at three angles, and the rolling force of the roll is large. The single three-axis drive rolling mill requires each axis to have an independent power system or use multiple sets of reversing gear boxes. To change the driving direction, the entire driving module transmission chain is relatively complicated, and the system cost is also high. During equipment installation and maintenance, the three-axis drive type mostly uses pressure to assemb...

AI Technical Summary

Problems solved by technology

[0003] When the three-axis drive rolling mill is rolling, the rolling force is balanced at three angles, and the rolling force of the roll is large. The single three-axis drive rolling mill requires each axis to have an independent power system or use multiple sets of reversing gear boxes. Changing the driving direction, the entire driving module transmission chain is more complicated, and the system cost is also high

[0004] The single-shaft transmission type rolling mill has a simple transmission system, and the rolls in the rolling mill are fixedly installed. The rolls cannot be disassembled quickly without dismantling the frame body. It is too large to achieve the purpose of diameter reduction and sizing; it needs to be repaired after a period of use before using it again

However, when rolling metals with high strength and poor shape, such as tungsten, molybdenum, titanium, etc., a single-shaft driven rolling mill is used, the wear of the pass is large, and the frequency of roll replacement is high. It is necessary to open the entire inside of the stand to realize the roll After dismantling and repairing the frame, it is difficult to reinstall the components to the correct position. When reusing after disassembly, the rolling process is often unreliable due to installation problems, so the time and capital cost of equipment maintenance high

If the maintenance is carried out without dismantling the equipment, and the roller ring is kept on the frame for grinding and repair, it can have a good repair effect on the roller ring of the flat triangular pass, but it is difficult to process the arc triangular pass. Roll rings and roll rings with tangential passes have a better repair effect

Images