JP2580027Y2 - Ladle elevating device for ladle turret in continuous casting 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 ladle elevating device for a ladle turret in a continuous casting facility.

[0002]

2. Description of the Related Art A ladle in a recent continuous casting facility is supported by a turret, which not only increases the casting ratio continuously and is convenient for a multi-strand continuous casting machine, but also improves the casting floor. It is also favorable for interference of ceiling crane and securing work space.

A typical example of a raid elevating device in such a ladle turret (turning ladle for ladle) is a rigid arm system shown in FIG.
No. 9-44003) and the butterfly method shown in FIG. These schemes are briefly described and their problems are pointed out.

In FIG. 4, a ladle 1 carried in by a ceiling crane (not shown) is moved through a ladle seat 1a.
It is mounted on lifting beams 2 arranged on both sides. The lifting beam 2 is moved up and down while being guided by a pair of front and rear lifting guides 4 by a pair of front and rear worm jacks 3. The lifting beam 2, the worm jack 3 and the lifting guide 4 are provided on a turret arm 5. In FIG. 4, 6 is a tundish, 7
Indicates a ladle stand.

Therefore, in the rigid arm type ladle elevating device shown in FIG. 4, only the elevating beam 2 is moved up and down, and although the whole structure becomes simple, the ladle 1 is carried in and out. Sometimes, the ladle 1 and the ladle crane hook (see FIG. 2) and the worm jack 3
In order to prevent interference, the lifting beam 2 is lengthened to form a clearance between the ladle 1 and the worm jack 3 erected on the turret arm 5. As a result, the entire length of the turret arm 5 becomes longer, and the maximum turning radius is larger than the turning radius of the outer peripheral surface of the ladle 1.

Therefore, in such a ladle turret, various operations are performed on the ladle 1 and the tundish 6 on the ladle stand 7, and some of these operations are performed on the lower side of the turret arm 5. Thus, the workability is reduced, and the vicinity of the ladle 1 is not obstructed by the turret arm 5. However, considering the rotation of the turret turret, various types of turrets are used. The work equipment had to be provided with an automatic control device such as an entry / exit function.

On the other hand, in FIG. 5 (the same parts as those in FIG. 4 are denoted by the same reference numerals and description thereof is omitted), the ladle seat 1a of the ladle 1 is provided with a ladle support frame 8. It is placed on. The ladle support frame 8 is swingably supported at the tip of a turret support arm 9, and the base of the turret support arm 9 is connected to a large special hydraulic cylinder 10. Have been.

Therefore, in the butterfly type ladle elevating device shown in FIG. 5, the maximum radius of rotation is determined by the outer peripheral surface of the ladle 1 mounted on the ladle support frame 8, and is formed on the cast floor. Since the space can be saved, it is suitable for a building having a small distance D between the pillars 11 and 11 as shown in FIG. 6, but when the ladle 1 is raised and lowered, the ladle support frame 8 and the turret support arm 9 are provided. Since the large special hydraulic cylinder 10 is provided in the center of the ladle turret where the ladle cranes hooks for carrying in and out the ladle do not come close, the structure becomes complicated. In addition, maintenance is disadvantageous.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the gist of the present invention is to provide a ladle turret having a ladle elevating device provided on a turret arm. Wherein the ladle elevating device comprises a plurality of hydraulic cylinders on one side, the cylinder tubes of these hydraulic cylinders are built in a turret arm, and the piston rods are mounted on the turret arm. Erected so as to be within the plane outline of a ladder seat provided on the outer periphery of the ladder, and mounting the ladle on these hydraulic cylinders via a lifting beam. And a ladle elevating device for a ladle turret in a continuous casting facility.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is a plan view of a main part of an embodiment of the present invention, FIG. 2 is a sectional side view taken along the line BB of FIG. 1, and FIG.

The ladle 1 of the present embodiment is, for example, 150
It is suitable for a ladle containing molten steel of ton. For example, the opening diameter of the ladle 1 is about 4,600 mmφ. The ladle 1 is mounted on a turret arm 5 of a rigid arm type as described with reference to FIG.
Since the turret arm 5 itself does not move up and down, the entire apparatus is simplified and the maintainability is excellent.

1 and 2, a ladle 1 is mounted on a turret arm 5, and a piston rod of a hydraulic cylinder 12 is provided in a plane outline of a ladle seat 1a of the ladle 1. As shown in FIG. Is located. Such a hydraulic cylinder 12
Are erected on each side. The hydraulic cylinder 12 may be a normal hydraulic cylinder. And
The hydraulic cylinder 12 will be further described.
2, the piston rod side mounting flange 13 is mounted on the top plate 17 of the turret arm 5 as shown in FIG. 3, and the hydraulic cylinder 12 is a turret arm and the cylinder tube 12a is a turret arm.
It is built into the system 5.

The ladle 1 is supported by the two hydraulic cylinders 12 on one side via the lifting beam 3.
When the lifting beam 3 is divided into upper and lower parts, a load cell 1 for measuring the weight of the ladle can be obtained.
6 can be formed. Further, the lifting beam 3 can be further shortened in its entire length by the structure described below.

That is, even if a part 14 of the mounting flange 13 on the piston rod side of the hydraulic cylinder 12 is deleted and the hydraulic cylinder 12 is disposed close to the ladle 1, it does not interfere with the outer periphery of the ladle 1. Like that. The clearance between the turret arm 5 and the ladle 1 is formed by bending the side plate on the ladle side of the turret arm 5 along the outer periphery of the ladle 1.

In the drawing, O indicates the position of the molten steel discharge hole, and in FIG. 3, reference numeral 18 indicates a sub-elevating beam, and reference numeral 20 indicates a ladle 1.
, A trunnion shaft 21 protrudes from the shaft, and 21 denotes a ladle crane hook.

The ladle crane hooks 20 suspended from the ceiling crane are locked by trunnion shafts 20 provided on both sides of the ladle to carry in and out the ladle 1. The pair of the ladle crane hooks 20 is capable of suspending the ladle 1 of, for example, 150 tons or more, so that it is extremely large. For example, when unloading the ladle 1 mounted on the turret arm 5, the right side E in FIG. 1 and the lower side F in FIG. To position. Next, from below F of the trunnion shaft 20, FIG.
To suspend the ladle 1. Here, the turret arm 5 is provided with a column 5a for guiding the trunnion shaft 20 during the tilting of the ladle and an elevating guide 4 for guiding the elevating beam 3; Movement is regulated.

As described above, according to the ladle turret of this embodiment, the ladle 1 is raised and lowered by the hydraulic cylinder 12,
In addition, the cylinder tube 12a of the hydraulic cylinder 12 is incorporated in the turret arm 5, and the piston rod of the hydraulic cylinder 12 is mounted on the turret arm 5. The hydraulic cylinder 12 provided near the trunnion shaft 20 of the ladle 1 mounted on the turret arm 5 and the ladle crane hook of the ceiling crane for loading and unloading the ladle are provided within the outer contour. 21 can be eliminated. The hydraulic cylinder 12
And a sufficient clearance can be formed with the mounted ladle 1. As a result, the turning radius of the turret arm 5 can be made equal to or smaller than the maximum turning radius of the outer peripheral surface of the ladle 1 mounted on the turret arm 5.

Therefore, a long nozzle support device and a temperature measuring device installed on a ladleman deck (not shown),
The installation position of the other auxiliary equipment can be set to a position close to the ladle 1 during pouring, and the structure of these equipment can be simplified. In addition, the worker may use a ladle 1 or a tundish 6
Work can be performed closer to the upper part of the vehicle, and the evacuation distance in an emergency can be shortened, so that work safety can be improved.

[0019]

[Effect of the Invention] According to the present invention, a so-called rigid arm is provided.
The structure is simple and easy to maintain and inspect because of the structure of the raid lifting and lowering device of the system. The turret arm can be prevented from interfering with the hydraulic cylinder while keeping the whole compact, and the turret arm can be shortened. Can be further contributed to. In particular, since it is a ladle elevating device using a hydraulic cylinder, auxiliary equipment such as piping can be built in the turning arm.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of an embodiment of the present invention.

FIG. 2 is a side sectional view taken along arrows BB in FIG.

FIG. 3 is a main part view viewed from arrows C in FIG. 1;

FIG. 4 is a conventional example.

FIG. 5 is another conventional example.

FIG. 6 is a plan view of a continuous casting facility building.

[Explanation of symbols]

1 ... ladle, 1a ... ladle seat, 5 ... turret
System, 12 ... hydraulic cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-241648 (JP, A) JP-A 5-49152 (JP, U) JP-A 4-98359 (JP, U) JP-A 62- 61351 (JP, U) Fully open sho 59-162149 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B22D 11/10 310 B22D 41/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A ladle turret having a ladder elevating device provided on a turret arm, wherein the ladle elevating device is constituted by a plurality of hydraulic cylinders on one side, and a cylinder tube of these hydraulic cylinders is provided. -The turret arm is embedded in the turret arm, and its piston rod is
A ladder mounted on the turret arm
A ladle in a continuous casting facility characterized in that the ladle is erected so as to fall within the plane outer contour of the dollar seat, and a ladle is mounted on these hydraulic cylinders via a lifting beam. Turret ladle elevating device.