Sectional roller device of finish rolling inlet guide table of hot rolling strip rolling mill

Abstract

The utility model discloses a hot-rolled strip rolling mill finish rolling inlet guide table segmented roller device which comprises a base, the base is installed on a small vertical roller memorial archway rack through bolts, segmented rollers are installed on the base through bolts in a combined mode, and the number of the segmented rollers is multiple. The sectional roller body is provided with a core shaft through a bearing, and each two sections of sectional roller body are supported by a shaft seat. The utility model relates to the field of design of guide table segmented rollers, in particular to a segmented roller device of a finish rolling inlet guide table of a hot rolling strip rolling mill.

Description

TECHNICAL FIELD

[0001] The utility model relates to the design field of guide stand section roller, and specifically relates to a hot-rolled plate strip rolling mill finishing mill entry guide stand section roller device. BACKGROUND

[0002] The strong hidden lower surface scratch of hot-rolled strip steel mainly occurs at the finishing mill entry guide stand, although some scratches can be avoided through normal equipment inspection, maintenance, timely adjustment of the rolling line roll surface and the elevation of the entry and exit guide stands, adjustment of the loop roll elevation, but it is impossible to eradicate. At the F1 entry guide stand of the finishing mill, due to the limitation of the rolling mill frame external size and the arrangement characteristics of the work roll entry guide stand, the scratch defect caused by the sliding friction of the lower surface of the strip steel and the upper surface of the F1 entry guide stand cannot be completely eradicated by polishing the surface of the guide stand, and can only be eradicated by changing the sliding friction of the lower surface of the strip steel into rolling friction.

[0003] The scratch of the strip steel at the F1 entry guide stand of the finishing mill is mainly related to the factors such as the downward deflection of the strip steel through the place and the strip steel profile deviation. The sliding friction causes the scratch, and the scratch seriously affects the surface quality of the finished strip steel. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is that the lower surface of the strip steel is easily scratched at the F1 entry guide stand.

[0005] To solve the above problems, the technical scheme adopted by the utility model is as follows: the utility model is a hot-rolled plate strip rolling mill finishing mill entry guide stand section roller device, which comprises a base, the base is installed on a small vertical roll frame through bolts, a section roller is installed on the base through bolts, and the section roller is provided with multiple groups. The section roller body is provided with a mandrel through a bearing, and an axle support is arranged between every two section roller bodies.

[0006] Further, the base is composed of a steel structure.

[0007] Further, the elevation of the section roller body is 20-40mm higher than that of the entry guide stand.

[0008] Preferably, to reduce the rotational inertia of the section roller, the section roller body is designed as a hollow roller, the roller body is divided into three sections, a rolling bearing and a roller mandrel are installed in the roller body, a support axle seat is installed between every two roller bodies to support the roller mandrel, four support axle seats are installed on the roller mandrel to support and fix the mandrel, so as to reduce the bending deformation of the roller mandrel, and the three roller bodies are installed on the mandrel through a bearing and can freely rotate around the mandrel.

[0009] The utility model has the following beneficial effects by adopting the above structure:

[0010] The scratch defect of the lower surface of the strip steel in the F1 entrance guide table can be basically eliminated, the surface quality of the strip steel is improved, and the product image is improved.

[0011] The design of the segmented roller can greatly reduce the rotational inertia of the roller body and the sliding friction between the lower surface of the strip steel and the segmented roller. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 A whole structure schematic view of the hot-rolled plate strip rolling mill finishing rolling entrance guide table segmented roller device is provided in the utility model.

[0013] Fig. 2 A segmented roller installation position front sectional view is provided in the utility model.

[0014] 1, base, 2, segmented roller, 3, mandrel, 4, shaft seat, 5, bearing. DETAILED DESCRIPTION

[0015] As shown in the description accompanying drawings Figs. 1-2 The utility model discloses a hot-rolled plate strip rolling mill finishing rolling entrance guide table segmented roller device, including base 1, base 1 is installed on the small vertical roll frame through bolt, and the segmented roller 2 is installed on base 1 through bolt, and the segmented roller 2 is equipped with multiple groups. The mandrel 3 is installed on the segmented roller 2 roll body through bearing 5, and the shaft seat 4 is supported between every two segmented roller 2 roll bodies.

[0016] As shown in the description accompanying drawings Figs. 1-2 The base 1 is composed of steel structure. The segmented roller 2 roll body elevation is 20-40mm higher than the entrance guide table.

[0017] When being used, in order to reduce the transformation cost, the base 1 is directly welded on the small vertical roll frame exit beam through bolt on site, and the horizontal bottom plate is used to guarantee the elevation and level of the supporting base when welding, the segmented roller 2 roll body elevation is 20-40mm higher than the entrance guide table, and is used for conveying the strip steel.

[0018] It should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments that can be understood by the person skilled in the art.

Claims

1. A segmented roller device for the entry guide table of the finishing stand of a hot strip rolling mill, characterized in that: It comprises a base which is bolted to a small roller frame, and a segmented roller which is bolted to the base, and the segmented roller is provided with multiple groups, and the segmented roller body is provided with a mandrel through bearings.

2. The work roll entry guide segmenting roll arrangement for a hot strip mill finishing mill according to claim 1, characterized in that: The base is made of steel structure.

3. The work roll entry guide segmenting roll arrangement for a hot strip mill finishing mill according to claim 1, characterized in that: The segmented roller body is 20-40mm higher than the entrance guide.

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