JPH04294807A - Device for driving vertical roll of multistrand continuous casting machine - Google Patents

Abstract

PURPOSE:To offer a device for driving the vertical roll of V-stand mill with which the driving part of the vertical roll stand mill can be protected from water and scale, which the replacement of the mill housing is easy and which is structurally made compact in a rolling line which is directly connected to a multistrand continuous casting machine. CONSTITUTION:In the rolling line which is directly connected to the multistrand continuous casting machine, a driving source for driving the vertical roll is arranged by the side of the strand and a reverse U-shaped power transmission system is constituted by combining universal joint 6, unversal joint lifting device 7, upper and lower reduction gears 4, 8, etc., the vertical roll is driven from the upper part with this power transmission system and also the power transmission system is rotatable around an axis that is approximately orthogonally crossed to the drawing-out direction of the strand with a revolving device 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical roll drive for a multi-strand continuous casting machine.

0002

[Prior Art] The distance between the first strand and the second strand of a two-strand billet continuous casting machine as shown in FIG. It is difficult to secure. On the other hand, the rolling mill installed for each strand needs to have the same distance between the continuous casting machine and the rolling mill from the viewpoint of making the quality the same. For this reason, the two vertical roll stand rolling mills 2 face each other, further limiting the installation space. Furthermore, it is necessary to replace the rolling mill housing or roll assembly every time the pass schedule is changed, and it is necessary to secure a hanging space above the rolling mill.

[0003] As described above, multi-strand rolling mills have narrow intervals between the strands, and are usually of a bottom drive type in consideration of operability and ease of replacing the rolling mill housing. However, since a large amount of water is applied to the billet and a large amount of scale is generated due to the hot rolling line, the drive section located below the rolling line lacks durability and is extremely difficult to maintain. In addition, water and scale treatment must be carried out taking into consideration the drive section, which poses the problem of complicating the basic structure.

0004

[Problem to be solved by the invention] To protect the driving part of a vertical roll stand rolling mill (referred to as a V-stand rolling mill) from water and scale in a direct rolling line of a multi-strand continuous casting machine. An object of the present invention is to provide a vertical roll drive device for a V-stand rolling mill that is structurally compact and allows easy replacement of the rolling mill housing.

[0005]

[Means for Solving the Problems] In a direct rolling line of a multi-strand continuous casting machine, a drive source for driving vertical rolls is placed on the side of the strand, and a universal joint, universal joint lift device and An inverted U-shaped power transmission system is constructed by combining an upper speed reducer, etc., and the vertical rolls are driven from above through this power transmission system, and
The power transmission system was pivotable by a pivoting device 9 about an axis substantially perpendicular to the direction in which the strands were pulled out.

[0006] With this configuration, the V-stand rolling mill in the rolling mill directly connected to the multi-strand continuous casting machine can be protected from water and scale, and moreover, sufficient work space can be secured during setup changes, etc. I made it.

[0007]

[Embodiment] This will be explained based on FIGS. 1 and 2. 3 is a rolling mill housing. 6 is a universal joint, and 7 is a universal joint lift device. 8 is machine frame 11
The upper drive reducer 9 is attached to the upper part of the machine frame 1.
This is a turning device that is attached to the upper part of the strand and turns the power transmission system around an axis that is substantially orthogonal to the direction in which the strand is pulled out. 10 is a coupling, and 4 is a lower drive speed reducer.

Now, in order to drive the rolling mill roll by the electric motor 5, the steps are as follows: electric motor 5 → lower drive reducer 4 → coupling 10 → upper drive reducer 8 → universal joint 6
→Power is transmitted to the rolling mill housing 3.

When replacing the housing, the universal joint 6 is moved by the universal joint lift device 7.
The upper drive reducer 8 is rotated by the rotating device 9 to a replacement position outside the strand shown by the imaginary line in FIG. 2.

0010

[Effects] In the present invention, the vertical rolls are driven by an upper drive method, and the upper drive reducer can be rotated by a rotating device. Thus, the vertical roll drive in a rolling line directly connected to a multi-strand billet continuous caster is free from water and scale.
This makes it extremely easy to replace the mill housing or roll assembly.

[Brief explanation of drawings]

FIG. 1 is a front view of a vertical roll drive section of a two-strand continuous casting machine embodying the present invention.

FIG. 2 is a plan view as well.

FIG. 3 is a plan view of a conventional two-strand continuous casting machine.

FIG. 4 is a front view as well.

FIG. 5 is a detailed view of the vertical roll drive unit.

[Explanation of symbols]

1 Billet continuous caster 1a Tundish 2 Vertical roll stand rolling mill 3 Rolling mill housing 4 Lower drive reducer 5 Electric motor 6 Universal joint 7 Universal joint lift device 8 Upper drive reducer 9 Swivel device 10 Coupling 11 Machine frame

Claims (1)

[Claims] Claim 1: In a direct rolling line of a multi-strand continuous casting machine, a drive source for driving vertical rolls is placed on the side of the strand, and a universal joint, universal
Inverted U by combining monkey joint lift device and reducer etc.
A turning device is provided which constitutes a letter-shaped power transmission system, drives the vertical roll from above through the power transmission system, and rotates the power transmission system around an axis substantially perpendicular to the direction in which the strand is pulled out. A vertical roll drive device for a multi-strand continuous casting machine.