JPS62197207A - Driving device for rolling mill - Google Patents

Abstract

PURPOSE:To supply a rolling mill with a power corresponding to requirements for producing various kinds of products in small amount for one rolling mill, to remarkably reduce the equipment cost, and to contrive an energy saving by switching a roll driving system by proper arrangements of a gear train and clutches. CONSTITUTION:Upper and lower intermediate rolls 1b and 1b' positioned between upper and lower backup rolls 1c and 1c' and an upper working roll 1a of a six-high rolling mill 1 are connected with a driving device 3 using spindles 2 and 2'. Gears 5, 5', 6, 6', 7, 8, and 8' in the driving device 3 driven by driving motors M1 and M2 are engaged and disengaged by clutches 9a-9e. The upper and lower intermediate rolls 1b, 1b' and the upper working roll 1a are driven by various engagement and disengagement combinations of the clutches 9a-9e, the presence or absence of mechanical tie between the motors M1 and M2, and driving by only one motor so as to be suited for production of various kinds of products in small amount.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a rolling mill, and more particularly to a driving device for a rolling mill that is capable of switching between various rolling methods and is suitable for production of a wide variety of products in small quantities.

[Background of the invention]

Rolling technology has developed significantly in recent years, and there are a wide variety of rolling methods such as continuous rolling with different circumferences and single roll drive.

However, in order to obtain several types of rolling methods, several rolling mills must be installed, resulting in an enormous installation space and equipment cost.

Recently, Japanese Patent Publication No. Sho 60-12135 has proposed a switching type drive machine with a twin drive and a single roll drive, but this is not sufficient to accommodate diversification.

[Purpose of the invention]

An object of the present invention is to provide a driving machine for a rolling mill that enables many types of rolling methods with one rolling mill, and in particular, is suitable for high-mix, low-volume production.

[Summary of the invention]

The optimal rolling method is determined by the material of the rolled material, its purpose, etc., but if it were possible to implement several of these rolling methods with a single rolling mill, there would be great benefits in terms of equipment costs and installation space. Instead, we focused on the fact that by using one or two drive motors as needed, we could supply the optimal power that matches the rolling method and material being rolled, and also achieve energy-saving effects. Proper placement achieves this objective.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram showing the overall configuration of a rolling mill according to the present invention, and shows an example of an inner-crotch rolling mill.

The rolling mill 1 incorporates upper and lower intermediate rolls lb and lb' supported by upper and lower reinforcing rolls lc and lc', and upper and lower work rolls la and la'.

A spindle 2 (or 2') is connected to the intermediate rolls lb, lb' (or the upper work roll la), and the other end of this spindle is connected to the output shaft of the drive machine 3.

The input shaft of the drive machine 3 is connected to prime movers Ml, M2 (usually electric motors) via couplings 4, 4'.

FIG. 2 shows a gear mesh diagram of the drive device according to the present invention,
Intermediate roll drive shaft gears 6, 6' mesh with the input shaft gears 5, 5', and mechanical tie gears 8, which connect the upper and lower shafts on the same axis.
8', and an upper intermediate roll drive shaft gear 6
The upper work roll drive shaft gear 7 is meshed with the upper work roll drive shaft gear 7. The gears 5, 5' and 8' are rotatably supported on a shaft, and are connected to and disconnected from the shaft by clutches 9a, 9b and 9c, respectively. Further, an upper intermediate roll drive shaft 10. The spindles 2 and 2' connecting the upper work roll drive shaft 11, the upper intermediate roll (1b in FIG. 1), and the upper work roll (1.a in FIG. 1) are clutches 9d and 9e, and the drive shaft 1 .0.11.

According to this embodiment, the clutches 9a and 9b of each part.

Appropriate operation of 9c, 9d, 9e and drive motors Ml, M
According to the present invention, one rolling mill can perform several types of rolling methods as shown in Table 1. Since the rolling method can be easily changed, it is not only possible to significantly reduce equipment costs and installation space, especially for requests for high-mix, low-volume production, but also to ensure that the optimum power is used according to the application. It can also be supplied and is effective in saving energy.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of a rolling mill of the present invention, FIG. 2 is a diagram of gear meshing of a drive device of the present invention, and third is a cross-sectional view taken along the line ■-■ in FIG. 2. 1...Rolling mill, 2.2'...Spindle, 3...
Drive device, 4.4'...Coupling, Ml, M2.
・・Drive motor, 5.5', 6,6', 7,8,8
'...Each gear, 9a to 9e...Clutch.

Claims (1)

[Claims] 1. A driving device for a rolling mill, characterized in that the driving method for the rolls of the rolling mill can be switched in various ways by appropriately arranging a gear train and a clutch.