JP2843771B2 - Rolling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relatively small rolling device used for rolling a metal material or the like.

[0002]

2. Description of the Related Art A general rolling apparatus includes a rolling mill stand provided on a bed, a pair of upper and lower rolls provided on the rolling mill stand, a motor for rotating each roll, and the like. The rotational force of the motor is transmitted to each roll via a power transmission mechanism such as a speed reducer, a universal joint, or a gear coupling, and the rolls are rotated in synchronization with each other. These power transmission mechanisms and motors are arranged substantially horizontally on the side of the rolling mill stand.

[0003]

In the above-described conventional rolling mill, the torque of the motor is transmitted to each roll via a universal joint, a gear coupling, or the like. Therefore, a roll drive system including these power transmission mechanisms and the motor is required. It occupied the factory floor space for a fairly long area beside the mill stand, and lacked compactness.

Further, in the conventional rolling apparatus, since each roll is driven by a common motor, rolling at different peripheral speeds in which the peripheral speeds of the rolls are different from each other, or rolling in which the roll diameters are different from each other. It was not easy to perform the different diameter roll rolling. In addition, since the change in the roll height when changing the roll opening is absorbed within the operating range of the universal joint or the like, there is a problem that the setting range of the roll opening is narrow.

Accordingly, an object of the present invention is to make the rolling apparatus compact, to be particularly effective in reducing the floor space, and to easily cope with different peripheral speed rolling, different diameter roll rolling, and the like. Another object of the present invention is to provide a rolling apparatus that can set a wide range of roll opening.

[0006]

SUMMARY OF THE INVENTION A rolling apparatus according to the present invention, which has been developed to achieve the above object, comprises a rolling mill stand and a pair of upper and lower rotatably supported by bearings provided on the rolling mill stand. A first roll and a second roll, a first support member provided on a chock of a bearing portion that supports the first roll on one of left and right side portions of the rolling mill stand, and a first support member. A first geared motor having a first output shaft fixed and connected to an end of the first roll; and a bearing portion for supporting the second roll on the other of the left and right sides of the rolling mill stand. And a second geared motor having a second output shaft fixed to the second support member and connected to an end of the second roll. And the first geared motor is
A gear box fixed to the first support member;
A reduction gear portion having a first output shaft, and a lower portion of the reduction gear portion;
And the first output shaft
It has a rotation axis that is almost perpendicular to the intersecting direction.
Shaft torque is transmitted to the first roll via the reduction gear section.
And a second geared motor
The motor is a gear box fixed to the second support member.
And a reduction gear section having the second output shaft, and the reduction gear section
It is disposed in a hanging position below the gear portion and
(2) having a substantially vertical rotation axis in a direction intersecting with the output shaft;
The torque of the lever shaft is transmitted through the reduction gear section to the
And a motor body for giving two rolls

[0007]

When the rotating shaft of the motor body of the first geared motor is rotated, the torque is transmitted to the first output shaft via the reduction gear, and the first roll rotates. When the rotating shaft of the motor body of the second geared motor is rotated, the torque is transmitted to the second output shaft via the reduction gear, and the second roll rotates.

That is, in the present invention, each roll is independently driven by the output shaft of each geared motor. Since these geared motors are attached to the chocks that support each roll, if the height of the upper chocks is changed to change the roll interval, the first geared motor will move up and down along with the chocks. Moving. Therefore, it is possible to follow a change in roll opening without using a universal joint, and it is possible to increase the roll opening without any problem.

Further, when the peripheral speeds of the rolls are different from each other, or when the roll diameters need to be different,
It can be easily dealt with by replacing only the geared motor. It is known that different peripheral speed rolling requires less motor power than that of constant peripheral speed rolling. Therefore, the rolling device of the present invention is suitable for a case where it is necessary to increase the roll opening with a relatively small rolling device, for example, when rolling a short material.

The first geared motor and the second geared motor according to the present invention are respectively arranged on both left and right side surfaces of a rolling mill stand, one at a time. And left
Since the motor body of the right geared motor hangs down from the reduction gear section along each side of the rolling mill stand, the right and left balance is maintained and the center of gravity is low. In addition, the projected area on the factory floor is significantly reduced as compared with the conventional rolling mill, and the size can be reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The rolling device 10 shown in this embodiment includes a rolling mill stand 12 installed on a bed 11 and a pair of upper and lower first rolls 13 and second rolls 14 provided on the rolling mill stand 12. I have. The first roll 13 is supported by the upper bearing 15 so as to be rotatable around a horizontal axis. Second roll 14
Is rotatably supported by a lower bearing 16 about a horizontal axis.

The upper bearing portion 15 includes a pair of right and left chocks (bearing boxes) 20 and a bearing (not shown) built in the chocks 20. The lower bearing portion 16 includes a pair of right and left chocks 21 and a bearing (not shown) built in the chocks 21.

Each of the chocks 20 and 21 is accommodated in a vertically extending chock accommodating portion 22 provided on the rolling mill stand 12, and is held so as to be vertically movable. The upper chock 20 is urged in a direction away from the lower chock 21 by a rod 25 and a spring 26 as an example of means for pushing up the first roll 13 (roll balancing means).

The upper chock 20 can be pressed downward by a roll pressing mechanism 30. That is, by setting the height of the chocks 20 variably by the roll pressing mechanism 30, a desired roll opening can be obtained. The illustrated roll lowering mechanism 30 is of a screw nut type, and the rotational force of a manually operated pressing handle 31 is reduced by a lowering screw 35 via gears 33 and 34 housed in a pressing box 32.
, The upper chock 20 can be pressed downward. The screw 35 may be rotated by a motor.

As shown in FIG. 1, a rolling mill stand 1
The first roll drive mechanism 41 is provided on one side (the right side in the figure) of the two left and right side parts of the second, and the other side (the left side in the figure)
Is provided with a second roll drive mechanism 42. These roll drive mechanisms 41 and 42 have the same configuration as each other,
As described below, they are mounted on the chocks 20, 21 in a posture in which the left and right positional relations are reversed.

The first roll driving mechanism 41 includes a first roll 1
3, a first support member 45 attached to the outer surface of the chock 20 for supporting the right end of FIG.
5 and a first geared motor 46 fixed to the motor. The geared motor 46 includes a motor body 47 and a reduction gear section 48. The gear box 49 of the reduction gear portion 48 is fixed to the first support member 45.

The motor main body 47 is arranged in a posture hanging down from the reduction gear portion 48. The rotating shaft 55 of the motor main body 47 extends vertically above the motor main body 47. The output shaft 56 of the reduction gear unit 48 is
5 extend in a direction intersecting at right angles to the extension line, that is, in the horizontal direction. This output shaft 56 is directly connected to the end of the first roll 13.

In the reduction gear section 48, a driving gear 57 provided on a rotary shaft 55 and a driven gear 58 provided on an output shaft 56 are meshed with each other, and the torque generated by the motor body 47 is transmitted to these gears. Output shaft 56 via 57, 58
You can tell to. Drive gear 57
As the driven gear 58, for example, a helical bevel gear is suitable, but a worm gear mechanism may be used.

The second roll drive mechanism 42 includes a second roll 1
4, a second support member 65 attached to the outer surface of the chock 21 supporting the left end in the drawing,
5 and a second geared motor 66 fixed to the motor. The geared motor 66 includes a motor body 67 and a reduction gear unit 68. The gear box 69 of the reduction gear unit 68 is fixed to the second support member 65.

The motor main body 67 is arranged in a posture hanging down from the reduction gear section 68. The rotating shaft 75 of the motor body 67 extends vertically above the motor body 67. The output shaft 76 of the reduction gear unit 68 is
5 extend in a direction intersecting at right angles to the extension line, that is, in the horizontal direction. This output shaft 76 is directly connected to the end of the second roll 14.

In the reduction gear section 68, a driving gear 77 provided on a rotating shaft 75 and a driven gear 78 provided on an output shaft 76 mesh with each other, and the torque generated by the motor body 67 is reduced by these gears. Output shaft 76 via 77, 78
You can tell to. Drive gear 77
For the driven gear 78, for example, a helical bevel gear is suitable, but a worm gear mechanism may be used.

Next, the operation of the rolling apparatus 10 having the above configuration will be described. The geared motors 46 and 66 are driven to rotate in a predetermined direction at a predetermined rotation speed based on a predetermined rolling schedule. When the rotation shaft 55 of the motor main body 47 of the first geared motor 46 is rotated, the torque is transmitted to the output shaft 56 via the reduction gear portion 48, so that the first
The roll 13 is driven directly. When the rotation shaft 75 of the motor body 67 of the second geared motor 66 is rotated, the torque is transmitted to the output shaft 76 via the reduction gear portion 68, so that the second roll 14 is directly driven.

In order to change the roll opening, the height of the upper chock 20 is changed by the roll pressing mechanism 30. The chocks 20 include a first geared motor 4
Since the chocks 20 are mounted, when the chocks 20 move up and down, the geared motors 46 move together with the chocks 20 in the same direction.

As described above, in the above embodiment, the rolls 13 and 14 can be directly and independently driven by the geared motors 46 and 66, respectively, and the geared motor 46 is attached to the chock 20. There is no problem in increasing the roll opening. Further, when the peripheral speeds of the rolls 13 and 14 are different from each other, or when the diameters of the rolls 13 and 14 are changed, it is possible to easily cope with the case by replacing the geared motors 46 and 66 with desired specifications. .

In the rolling apparatus 10 of the above embodiment, the first geared motor 46 and the second geared motor 66 are respectively arranged on both right and left sides of the rolling mill stand 12 one by one. 47 and 67 hang down from the reduction gear portions 48 and 68 along the both sides of the rolling mill stand 12, respectively, so that the floor occupies significantly less space than the conventional rolling mill. It is a thing.

FIGS. 4 to 6 show a rolling apparatus 80 according to a second embodiment of the present invention. In this rolling device 80,
The same parts as in the first embodiment are denoted by the same reference numerals as in the first embodiment, and the description is omitted. In the second embodiment, the first geared motor 46 is provided on both left and right sides of the rolling mill stand 12.
And the second geared motor 66 are distributed.

In the roll pressing mechanism 81 of the rolling device 80 of the second embodiment, a pair of driven gears 84 mesh with a driving gear 83 rotated by a pressing handle 82.
When the pressure handle 82 is rotated, the pair of left and right pressure screws 85 rotate. As means for pushing up the upper chock 20, a spring (not shown) is built in between the chock 20 and the lower chock 21, and the upper chock 20 is moved in the direction of increasing the roll opening. It is energizing.

FIGS. 7 to 9 show a rolling apparatus 90 according to a third embodiment of the present invention. In this rolling device 90,
The same parts as in the first embodiment are denoted by the same reference numerals as in the first embodiment, and the description is omitted. In the third embodiment, the first geared motor 46 is provided on both left and right sides of the rolling mill stand 12.
And the second geared motor 66 are distributed.

The roll pressing mechanism 91 of the rolling device 90 of the third embodiment presses the upper chock 20 downward by a hydraulic cylinder 92. As means for pushing up the upper chock 20, a spring (not shown) is built in between the chock 20 and the lower chock 21, and the upper chock 20 is attached in a direction to increase the roll opening. I'm going.

In these rolling devices 80 and 90, the rolls 13 and 14 can be directly driven independently by the geared motors 46 and 66, respectively, and the geared motor 46 is attached to the chock 20. There is no problem even if the roll opening is increased. When the peripheral speeds of the rolls 13 and 14 are different from each other,
Even when the diameters of the rolls 13 and 14 are changed, it can be easily dealt with by replacing the geared motors 46 and 66, for example.

Also in these rolling devices 80 and 90, the first geared motor 46 and the second geared motor 66 are respectively arranged on the left and right sides of the rolling mill stand 12 one by one. Body 4
7 and 67 hang down from the reduction gear portions 48 and 68 along the both side surfaces of the rolling mill stand 12, respectively, so that the space occupied by the floor is significantly smaller than that of a conventional rolling mill. .

In carrying out the present invention, a rolling mill stand, a chock, and the like can be used without departing from the gist of the present invention.
It is needless to say that aspects of the roll pressing mechanism, the support member, the geared motor and the like can be variously changed, and it goes without saying that the present invention is not limited to the above-described embodiment.

[0033]

According to the present invention, less floor space is required for installation as compared with a conventional rolling mill, and
The motor body of the right geared motor is
Drop from the reduction gear along the sides of the
In particular, the dimensions in the width direction are small,
It ’s packed with pact, and it ’s balanced between left and right.
Since the center of gravity is low, it is easy to handle in installation work and the like. Further, the roll opening change can be allowed without using a universal joint, and a material to be rolled which requires a large roll opening can be rolled without any problem. And, it is possible to cope with different peripheral speed rolling and different diameter roll rolling only by changing the geared motor. Also, if the same gear motor is used for the left and right geared motors, normal rolling can be performed.

[Brief description of the drawings]

FIG. 1 is a front view of a rolling mill according to a first embodiment of the present invention.

FIG. 2 is a plan view of the rolling apparatus shown in FIG.

FIG. 3 is a side view of the rolling device shown in FIG.

FIG. 4 is a front view of a rolling mill according to a second embodiment of the present invention.

FIG. 5 is a plan view of the rolling device shown in FIG. 4;

FIG. 6 is a side view of the rolling device shown in FIG.

FIG. 7 is a front view of a rolling apparatus according to a third embodiment of the present invention.

FIG. 8 is a plan view of the rolling device shown in FIG. 7;

FIG. 9 is a side view of the rolling device shown in FIG. 7;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Rolling apparatus (1st Example) 12 ... Rolling mill stand 13 ... 1st roll 14 ... 2nd roll 15, 16 ... Bearing part 20, 21 ... Chock 22 ... Chock accommodating part 30 ... Roll reduction mechanism 45 ... 1st Support member 46 first geared motor 47 motor body 48 reduction gear 55 rotating shaft 56 output shaft 65 second support member 66 second geared motor 67 motor body 68 reduction gear 75 Rotating shaft 76 ... Output shaft 80 ... Roller (2nd embodiment) 81 ... Roll down mechanism 90 ... Roller (3rd embodiment) 91 ... Roll down mechanism

Claims (2)

(57) [Claims] 1. A rolling mill stand; a pair of upper and lower first and second rolls rotatably supported by bearings provided on the rolling mill stand; A first support member provided on one side of the chock of the bearing portion supporting the first roll; and a first output shaft fixed to the first support member and connected to an end of the first roll. A first geared motor, a second support member provided on a chock of a bearing portion that supports the second roll on the other of the left and right side portions of the rolling mill stand, and a second support member fixed to the second support member. And a second geared motor having a second output shaft connected to an end of the second roll , wherein the first geared motor is fixed to the first support member.
Gearbox and reduced speed having the first output shaft
The gear and the posture that hangs down below this reduction gear
Disposed and substantially perpendicular to the direction intersecting the first output shaft
And the torque of this rotating shaft
And a motor main body provided to the first roll through a threaded portion.
And the second geared motor is fixed to the second support member.
Having a driven gearbox and the second output shaft
The gear and the posture that hangs down below this reduction gear
Substantially perpendicular to the direction arranged and intersecting the second output shaft
And the torque of this rotating shaft
And a motor body provided to the second roll via a
Rolling and wherein the Eteiru. 2. A chock of a bearing portion supporting both ends of the first roll is held by a chock support portion provided on the rolling mill stand so as to be vertically movable, and
2. The rolling apparatus according to claim 1, further comprising: means for pushing up the chock upward; and a roll pressing mechanism for pressing the chock downward.