JPH06304657A - Driving device for uncoiler leveller - Google Patents

Abstract

PURPOSE:To reduce the manufacturing cost of a reduction distributor and to enhance efficiency in maintenance, in a driving device for an uncoiler leveller that is used for a continuous cold rolling equipment, continuous pickling equip ment, etc. CONSTITUTION:In straightening flatness defects of the belt-like material 31 that is uncoiled and fed out at a low speed, a driving shaft 14 is rotated at a reduced speed by a motor 59 through a driving shaft 51, pinion 52, gear 13, hollow driving shaft 15, and one way clutch 1; also, the upper straightening roll 42 and the lower straightening roll 42 of an uncoiler leveller 40 are rotated through mechanical twin gears 55, 57, distributor shaft 56, universal coupling 69; and thus, the straightening of the flatness of the belt-like material is performed. When a high speed travelling is commenced by the cold rolling of the belt-like material, as the inner ring 2 of the one way clutch 1 is rotated faster than the outer ring 3, the coupling of the inner ring 2 and the outer ring 3 is released, and the upper and lower straightening rolls 41, 42 are rotated idly to perform the straightening of the flatness of the belt-like material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive device for an uncoiler leveler used for continuous cold rolling equipment, continuous pickling equipment and the like.

[0002]

2. Description of the Related Art In continuous cold rolling equipment, continuous pickling equipment, etc., when a strip material is sent from a payoff reel at a low speed such as 70 mpm, and the strip material is rolled and pickled,
For example, the strip is running at a high speed such as 500 mpm.

In such a case, the uncoiler leveler drives and rotates the upper and lower straightening rolls at the low speed traveling, and at the high speed traveling, the uncoiler leveler is driven in the idle state to reduce the capacity of the motor and prevent torque circulation. I am letting you.

FIG. 2 shows a continuous cold rolling facility, which is an example of the conventional facility described above.
The flatness of the strip 31 rewound by is corrected by the upper straightening roll 41 and the lower straightening roll 42 of the uncoiler leveler 40, and fed to the cold rolling mill group 80 to start high speed rolling.

FIG. 3 is a plan view of the uncoiler leveler 40 of FIG. 2 and its drive unit taken along the line III-III.

In FIG. 3, reference numeral 52 is a pinion, which is mounted on a drive shaft 51 mounted on a casing 58, and the drive shaft 51 is connected to a motor 59.

Reference numeral 54 denotes a drive shaft arranged in parallel with the drive shaft 51. A gear 53 meshing with the pinion 52 and a mechanical tie 55 are fitted axially at intervals, and are fitted to a casing 58. The outer ring 63 of the one-way clutch 61 is fixed to the end portion.

Reference numeral 56 designates upper and lower five distribution shafts. Five mechanical tie gears 57 meshing with the mechanical tie gears 55 of the drive shaft 54 and meshing with each other are fitted in the distribution shafts 56 and are rotatably mounted in the casing 58. The outer rings 63 of the one-way clutch 61 are fixed to the ends thereof.

Reference numeral 69 denotes a universal joint, one end of which is fixed to the inner ring 62 of each one-way clutch 61, and the other end of which is the housing 4 of the uncoiler leveler 40.
Upper and lower straightening rolls 41, which are axially attached to a bearing box 43 in
42 respectively.

Next, its operation will be explained.
When 1 is being sent at a low speed, the drive shaft 51 is rotated by the motor 59, the drive shaft 54 arranged in parallel with the drive shaft 51 directly connected to the motor is decelerated by the pinion 52 and the gear 53, and the mechanical tie gear 55, 57 distributes that rotation to each distribution shaft 56.

Then, the upper and lower straightening rolls 41, 42 are passed through a universal joint 69 while appropriately lowering the upper straightening roll 41.
Is rotated to correct the curling of the strip 31 and the flatness defect. At this time, a rotational load acts on the one-way clutch 61 so that it is engaged.

When the strip material 31 is fed to the cold rolling mill group 80 to start rolling, the strip material 31 travels at a high speed, so that the inner ring 62 of the one-way clutch 61 rotates at a higher speed than the outer ring 63 and no load is applied. In this state, the one-way clutch 61 is disengaged, and the upper and lower straightening rolls 41 and 42 enter an idle state and rotate as the strip 31 travels.

[0013]

In the uncoiler leveler of the continuous cold rolling facility as described above, the one-way clutch 61 needs a total of six vertical units, which causes a problem of increasing the manufacturing cost.

Further, since the oil is lubricated by the oil bath system, the lubricating oil may leak from the oil supply / drain hole on the outer peripheral surface of the rotating outer ring 63, and when a predetermined operation time has elapsed, the operation is stopped when the operation is stopped. A worker manually replenishes or replaces the lubricating oil of each one-way clutch 61. Therefore,
There was also a problem that maintenance costs became expensive.

The present invention has been proposed in order to solve each of the problems of the prior art, and a one-way clutch is sufficient, and a one-way clutch that does not require manual replenishment or replacement of lubricating oil is provided. It is an object to provide an uncoiler leveler driving device provided.

[0016]

As a structure for achieving the above object, the uncoiler leveler drive device of the present invention is configured such that a clutch is engaged and a lower straightening roll is driven and rotated when the strip is running at a low speed. In the uncoiler leveler for reducing the flatness of the rewound strip by pressing down the upper and lower straightening rolls in an idle state to separate the clutch during high speed running of the strip, It is characterized in that one one-way clutch is interposed between the drive shafts of the reduction gear distributor or between this drive shaft and one distribution shaft, and the one-way clutch is provided with a forced circulation oil supply means.

[0017]

According to the uncoiler leveler driving device of the present invention configured as described above, the flatness of the strip material which is rewound and sent at a low speed is treated by the mechanical tie gear through the drive shaft of the reduction distributor and the one-way clutch. Straightening is performed by driving the upper and lower straightening rolls while rotating each of the connected distribution shafts to roll down the upper straightening roll.

At this time, the one-way clutch is connected and lubricated by the forced circulation of the lubricating oil by the forced circulation oil supply means.

When the strip material starts to run at high speed by cold rolling, pickling, etc., the upper and lower straightening rolls rotate as the strip material travels, and the driven side of the one-way clutch rotates faster than the drive side. Is released, and the upper and lower straightening rolls become idle.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an uncoiler leveler and its drive unit, which is an embodiment of the present invention, taken along a horizontal plane.

The same members as those of the conventional apparatus are designated by the same reference numerals, and the duplicated description will be omitted.

In FIG. 1, reference numeral 1 denotes a one-way clutch, an inner ring 2 of which is fitted to a drive shaft 14 and an outer ring 3 of which is fixed to a hollow drive shaft 15.

The hollow drive shaft 15 has a gear 13 which meshes with a pinion 52 mounted on a drive shaft 51 which is directly connected to a motor 59.
Are fitted and are pivotally attached to the casing 58.

The drive shaft 51 and the drive shaft 14 are arranged in parallel with each other in a casing 58, and the drive shaft 14 is fitted with a mechanical tie gear 55 which meshes with two mechanical tie gears 57 arranged below. The rotary shaft 4 is attached to the drive shaft 15 and the casing 58, the rotary joint 4 connected to a lubricating oil circulating device (not shown) is mounted on one end, and the universal joint is fixed on the other end. Further, one end of the drive shaft 14 and the inner ring 2 are provided with an oil supply hole communicating with the rotary joint 4.

An oil receiver 5 is fixed to the casing 58 so as to slide on the drive shaft 14, and a lower oil drain hole (not shown) is connected to the lubricating oil circulating device.

Next, the operation of this device will be described. Drive shaft 51, pinion 52, gear 1 by motor 59
3, the hollow drive shaft 15 and the one-way clutch 1 are used to decelerate and rotate the drive shaft 14, and the respective mechanical tie gears 5
5, 57, the distribution shaft 56, and the universal joint 69, the upper straightening roll 42 and the lower straightening roll 42 of the uncoiler leveler 40.
Is rotated to correct the flatness defect of the strip material 31 sent at a low speed, as in the conventional technique.

At this time, the inner ring 2 of the one-way clutch 1
And the outer ring 3 are connected by the driving force of the outer ring 3,
Lubricating oil is forcibly supplied from the rotary joint 4 into the one-way clutch 1 by a lubricating oil circulating device (not shown), and the discharged lubricating oil is collected in the oil receiver 5 and returned to the lubricating oil circulating device (not shown).

When high speed running is started by cold rolling the strip 31, the upper and lower straightening rolls 41, 41 rotate in accordance with the running of the strip 31 and the inner ring 2 rotates faster than the outer ring 3, so that the inner ring 2 is rotated. The connection with the outer ring 3 is released, and the upper and lower straightening rolls 41 and 42 are in an idle state and rotate as the strip 31 is running to correct the flatness defect of the strip 31.

The embodiment of the present invention has been described above.
The present invention is not limited to the above-mentioned embodiments, and various design changes are possible within the scope of the technical idea of the present invention, and all of them belong to the technical scope of the present invention.

[0030]

As described above, according to the uncoiler leveler drive device of the present invention, one unit is provided between the drive shafts of the reduction distributor of the uncoiler leveler or between this drive shaft and one distribution shaft.
Since only one one-way clutch is provided, the number of one-way clutches is reduced, so that the production cost of the reduction gear distributor can be reduced.

Since the one-way clutch is provided with the forced circulation means, the lubricating oil is automatically supplied, so that the leakage of the lubricating oil is eliminated and the manual replenishment or replacement of the lubricating oil is not required, so that the free-wheeling is possible. It becomes maintenance and the maintenance cost can be reduced.

Further, damage to the one-way clutch due to oil leakage is eliminated, and it is possible to prevent a decrease in production amount due to equipment suspension.

[Brief description of drawings]

FIG. 1 is a plan view of an uncoiler leveler and a drive system therefor according to an embodiment of the present invention, taken along a horizontal plane.

FIG. 2 is a side view showing a concept of a main part of a continuous cold rolling facility which is an example of a conventional device.

FIG. 3 is a plan view of the uncoiler leveler and its drive device in FIG. 2 taken along the line III-III.

[Explanation of symbols]

 1 One-Way Clutch 2 One-Way Clutch Inner Ring 3 One-Way Clutch Outer Ring 4 Rotary Joint 5 Oil Receiver 13 Gear 14, 51 Drive Shaft 15 Hollow Drive Shaft 31 Band 40 Uncoiler Leveler 41 Upper Straightening Roll 42 Lower Straightening Roll 43 Bearing Box 52 Pinion 54, 57 mechanical tie gear 56 distribution shaft 58 casing 59 motor

Claims (1)

[Claims] 1. When the strip is running at a low speed, the clutch is engaged to drive and rotate the upper and lower straightening rolls respectively to reduce the pressure, and when the strip is running at a high speed, the clutch is separated to put the upper and lower straightening rolls in an idle state. In the uncoiler leveler for reducing the flatness of the unwound band material by rolling down the rolls, one is provided between the drive shafts of the reduction distributor of the uncoiler leveler or between this drive shaft and one distribution shaft. An uncoiler leveler drive device characterized in that the one-way clutch is installed, and the one-way clutch is provided with forced circulation refueling means.