JPS58196108A - Rolling equipment - Google Patents

Abstract

PURPOSE:To provide a rolling equipment capable of reducing its installing space and productive cost, by making the distance, between the axial centers of upper and lower intermediate rolls, approximately equal to the distance between respective axial centers of driving motors provided separately and coupling directly the intermediate rolls with respective motors. CONSTITUTION:In a six high mill equipped with each pair of work rolls 1A, 1B, intermediate rolls 2A, 2B, and back-up rolls 3A, 3B at the upper and lower sides of the mill, the intermediate rolls 2A, 2B mentioned above are directly coupled with respective motors 5A, 5B provided separately to the upper and lower sides, and are driven through horizontal driving shafts 6A, 6B, universal couplings 7A, 7B, inclinable driving shafts 9A, 9B, universal couplings 10A, 10B, and horizontal shafts 11A, 11B, etc. all of which are also provided separately to the upper and lower sides of the mill. Further, the intermediate rolls 2A, 2B are constituted so that they have the diameters which make the distance between their axial centers approximately equal to that of the motors 5A, 5B mentioned above. Therefore, it is prefarable that the motor 5B at the upper side is arranged on the rear side of the motor 5A at the lower side, and the level of the horizontal driving shaft 11B at the upper side is arranged close to the level of the top of the motor 5A at the lower side.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rolling apparatus for plate materials, and more particularly to a six-fold rolling apparatus equipped with a pair of upper and lower work rolls, an intermediate roll, and a reinforcing roll.

The configuration of a conventional rolling mill of this type is shown in Figure 1 (-). In this figure, IA and IB are a pair of upper and lower work rolls, 2B is an intermediate roll placed outside the work rolls, and 3
A and 8B are reinforcing rolls placed on the outside of the plate. The plate material 4 to be rolled passes between one work roll and IB. With such a roll configuration, the shape of the plate material can be controlled by the roll bending action of the intermediate roll and the adjustment of the axial movement of the intermediate roll.

By the way, the diameters of the work rolls IA and IB are made as small as possible in order to increase rolling efficiency, so it is impossible to drive them due to the torsional strength. Therefore, in this type of piezoelectric machine, the two intermediate rolls 2B are usually driven by separate motors 5A and sBK, respectively. In other words, the two lower intermediate rolls are driven by the horizontal Drive shaft 6A, universal joint 7A with variable connection angle,
It is directly connected to the lower motor 5AK via a tilting part moving shaft 9A having a spline joint 8A capable of sliding in the axial direction in the middle, a universal joint 10A, and a horizontal drive shaft 11A. Note that 12A and 13A are fixed joints, and 14A is an intermediate shaft. On the other hand, the upper intermediate roll 2B has a horizontal drive shaft 6B.
1 Universal joint 7B% A tilting part moving shaft 9B having a spline joint 8B, up to the universal hand 10B are the same as the lower side, and beyond that there is a fixed joint 15, an offset gear device 16. and is connected to the upper motor 5BK via the horizontal drive shaft 11B. Note that r2B% 13B is a fixed joint, and 14B is an intermediate shaft.

As described above, the conventional rolling mill is provided with an offset gear device 16. This is work role IA, IB
is as thin as possible in terms of rolling efficiency, and the intermediate roll 2
A, j! B has a relationship that gives roll bending, and λ<thinness.Due to the relationship, the distance between the axes of the intermediate rolls 2A and 2B is small, and if you try to directly connect the upper intermediate roll 2B to the motor 5BK, the lower motor sA will get in the way. It's for a reason.

However, since the offset gear device 16 is extremely expensive, its use not only increases the cost of the device, but also increases the width of the device as the gear device 16 is provided, requiring a large installation area. There is a drawback that.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to provide a rolling mill that is inexpensive and requires a small installation area by omitting an offset gear device.

In order to achieve this object, the present invention is provided with a pair of upper and lower working wheels, an intermediate roll, and a reinforcing roller, and the upper and lower intermediate rolls are driven by motors separately provided on the upper and lower sides. In the rolling apparatus, the upper and lower intermediate rolls have diameters such that the distance between their axes is approximately equal to the distance between the axes of the upper and lower motors, and each has a horizontal drive shaft and a universal joint. , is characterized in that it is directly connected to a corresponding motor via a tilting part driving shaft, a universal joint, and a horizontal driving shaft.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 shows a rolling mill according to an embodiment of the present invention. In this figure, parts corresponding to those in FIG. 1 are given the same reference numerals as in FIG. 1.

In this embodiment, the upper motor 5B is arranged behind the lower motor 5A, and the upper motor 6B is arranged so that its axis of rotation is at a level slightly higher than the top level of the lower motor 5A. The axial distance between the lower roller 5A and the upper motor SB is made as small as possible, and the axial distance between the intermediate rolls 2A and 2B is the same as that of the motors 8A and 5B. If the diameter is set to the appropriate diameter, the lower intermediate a-ru 2A will be connected to the lower intermediate a-ru 2A via the horizontal drive shaft 6A, the swivel hand 7A, the tilted drive shaft 9A, the universal joint 10A, and the horizontal drive shaft 11A. Directly connected to SAK, upper intermediate rule 2
B also has a horizontal drive shaft 6B, a universal joint 7B, and a tilting part moving shaft 9.
B1 universal joint 10B.

It is directly connected to the upper motor 58 via the horizontal drive shaft 11B.

Now, the diameter of the work rolls IA and IB is Dw, the diameter of the intermediate rolls 2A and 2B is Di, the diameter of the intermediate shaft 14B passing directly above the lower motor IA is z, and the axis of the lower motor sA is Letting the height from to the top be R*, in order to have the above configuration, 2D*+Dj≧Rm +0.5 D
It is sufficient if the relationship z ・, ・, ・<1) is satisfied. Therefore, by setting , equation (1) becomes K as follows.

2D glue + αD-≧Rvpr + 0.5 D #...
...(J,..., α≧11 Sat J-L!Li2...
...(bleeding lol) The most severe actual value in terms of dimensions for the above configuration is: Dlll: 150811. DJ: 80ms.

Since Rm = 440■lifting degree, substituting this into equation (4) yields 4≧44 0.5x8, = 1.250, that is, intermediate roll! What are the diameters of A and 2B?

If it is 1.2 times or more the diameter of work rolls IA and IB.
As in the 1poniron example, roll 8A between the upper and lower sides.

2B can be directly connected to the upper and lower motors 5A and B, respectively.

Incidentally, if the diameter of the intermediate eyes 2A, 2B is increased in this manner, roll bending becomes difficult, but this can be solved by increasing the diameter of the intermediate eyes 2A and 2B.

According to this embodiment, an offset gear device is not required to drive the upper intermediate roll, so the width of the device can be shortened accordingly, the installation area can be reduced, and the cost of the device itself can be reduced. It will also be cheaper. In addition, since the level of the rotating shaft of the upper motor 5B is close to the top level KII of the lower motor 5A, both motors 5B
The center spacing of A and 8B becomes smaller, and the intermediate roll 2A%2
It is possible to minimize the increase in the diameter of B.

In this embodiment, the upper tilting side drive shaft 9B is shown to be slightly tilted, but this tilting side drive shaft 9
It is desirable that B be substantially horizontal in the driving state 11.

No. 31i shows another embodiment of the present invention. In this figure [
Also, parts corresponding to those in FIG. 1 are given the same reference numerals as in FIG. 1.

In this embodiment, upper and lower motors 5A and 5B are stacked and arranged, and the upper and lower intermediate rolls 2A.

IB is the motor 5A, BBK is the horizontal drive shaft 6A, B, universal joint 'Ik, 7B, tilting drive shaft 9A.
, 9B, universal joint IQA, 10B, horizontal drive shaft 11A,
Directly connected via IIB.

According to this example III, since the distance between the axes of the motors 5A and 5B becomes larger than that of the embodiment shown in FIG. 2, the diameters of the intermediate eyes 2A and 2B become even larger, Although there are disadvantages such as a large inclination angle of 9B, since the upper and lower motors 5A and 3B are located at the same position, there is an advantage that the width of the device can be further shortened and the installation area can be even smaller.

As explained above, according to the present invention, the upper and lower intermediate rolls are directly connected to the upper and lower motors, respectively, and the offset gear device can be omitted, so the width of the device becomes smaller and the installation area can be reduced. It is possible to reduce the cost of the device and reduce the cost of the device. ”

[BRIEF DESCRIPTION OF THE DRAWINGS] Figure 1 and (B) are front and left side views of a conventional rolling machine, and Figures 2 and 3 are front views of a rolling machine according to an embodiment of the present invention, respectively. It is a diagram. lA11B...Working section, 2, 2B...
...Intermediate roll, 3A, 3B...Reinforcement roll, 5AJB...Motor, 8A, 8B...
・Horizontal drive shaft, 7A. 7B... Universal joint, 9A, 9B...,...
Tilting side drive shaft, IQA, IOB... Universal joint,
IIA, IIB...Horizontal drive shaft.

Claims (1)

[Claims] 1. A pair of upper and lower work rolls, an intermediate roll, and a reinforcing roll, each of which is driven by a motor separately provided on the upper and lower sides, The upper and lower intermediate μ-rules have a diameter such that the distance between their axes is approximately the same as the distance between the axes of the upper and lower motors, and each has a horizontal drive shaft, a universal joint, a tiltable part drive shaft, a universal joint, and a A rolling device characterized in that it is directly connected to a corresponding motor via a horizontal drive shaft. 2. According to claim 1, the upper motor is arranged behind the lower motor, and the level of the rotation axis of the upper motor is set to the level KI of the top of the lower motor.
A rolling device characterized in that it is arranged so as to be close to I. 3.41 The rolling apparatus according to claim 1, characterized in that the upper motor is stacked on the lower motor.