Reducing sizing mill with short roller body, four upright posts and no house for bars

Abstract

The invention provides a reducing sizing mill with a short roller body, four upright posts and no house for bars. The reducing sizing mill consists of axial adjusting devices, upright posts, depressing devices, connecting rods, supporting seats, short roller body rollers, bearing blocks, roller shafts, taper sleeves, handles and roller rings. The reducing sizing mill is characterized by further comprising the short roller body rollers, wherein the ratio of the length to the diameter of the roller body of each roller is smaller than or equal to one second of the short roller; the short roller body roller is a combined roller; the reducing sizing mill is of a four-upright-post houseless structure; each depressing device is connected with the corresponding bearing block of each roller through the upright posts; the upright posts are fixed on the corresponding supporting seats; each short roller body roller is arranged in the corresponding bearing block through a bearing; each axial adjusting device is connected with the corresponding bearing block; each connecting rod is connected with the corresponding supporting seat; each supporting seat is fixed on a foundation base. The reducing sizing mill has the advantages that a four-upright-post houseless high-rigidity rolling mill is combined with the short roller bodies, so that the integral rigidity of the rolling mill can be improved, a jumping value of the roller under the same rolling force is reduced, and further the dimensional precision of rolled pieces is improved; the four-upright-post houseless high-rigidity rolling mill is combined with a low-temperature controlled rolling process, so that structure properties of the rolled pieces can also be improved.

Description

Technical field: [0001] The invention relates to the technical field of steel rolling auxiliary equipment, in particular to a bar reduction and sizing machine with a short roll body, four columns and no archway. Background technique: [0002] Metal bar is a common metallurgical product. The rolling process generally includes three stages of rough rolling, intermediate rolling and finishing rolling. The reducing and sizing process is generally used for the final rolling of finishing rolling. The high rigidity of reducing and sizing can ensure Produce products with high dimensional accuracy. At present, the short stress line bar mill designed and manufactured in China has a long roll body length, which limits the improvement of the rigidity of the rolling mill, so it is not suitable for the reduction and sizing process; the three-roll and four-roll bar reduction designed abroad The sizing machine, mostly due to the relatively complicated structure of the transmission system, ...

AI Technical Summary

Problems solved by technology

At present, the short stress line bar mill designed and manufactured in China has a long roll body length, which limits the improvement of the rigidity of the rolling mill, so it is not suitable for the reduction and sizing process; the three-roll and four-roll bar reduction designed abroad The sizing machine, mostly due to the complex structure of the transmission system, makes its manufacturing and maintenance costs relatively high

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