JPH0744378Y2 - Ladle tilting device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a tilting device for tilting a ladle containing molten metal.

[0002]

2. Description of the Related Art Metals such as molten pig iron are
The slag that is stored in the ladle and floats above it is removed by tilting the ladle and pouring it outside. Conventionally, such a slag pouring operation is performed by a method in which one end of the ladle is pulled up by a crane or the like and the ladle is tilted.

However, with the recent increase in the capacity of the ladle, when the amount of metal contained in the pan is small, it is necessary to tilt the ladle largely in order to pour out the slag. However, in the conventional method of raising the ladle with a crane etc., the limit is to tilt the ladle up to about 30 degrees, and if it is tilted more than that, the center of gravity of the ladle will be balanced. There was a problem that the work could not be performed stably because it collapsed or was suspended in the air.

On the other hand, as a device capable of inclining the ladle largely, a device in which a trunnion shaft projecting on both sides of the ladle is fixed to a rotary drive shaft and the trunnion shaft is rotated to tilt the ladle. is there.

However, in the above apparatus, the structure for fixing the trunnion shaft so as not to slip becomes complicated, and when the ladle is newly replaced or when the ladle has a different shape, it is required each time. However, the trunnion shaft needs to be attached and detached, and the fixing member that matches the shape of the trunnion shaft needs to be replaced, which is a disadvantage in that it requires a great deal of work.

Therefore, an object of the present invention is to provide a tilting device capable of stably tilting a ladle at a large angle, and moreover, replacing the ladle easily.

[0007]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention relates to a pan holding frame for horizontally supporting a ladle which can be put in and taken out from a base on a base, and the pan. A tilting mechanism for tilting the holding frame is provided, and in the pan holding frame,
The lower surface of the flange that extends from the peripheral surface of the ladle is
A pair of seats for receiving at opposing positions is provided, and a horizontal guide member extending in a direction perpendicular to the tilting direction is integrally attached to the side of the pan holding frame that is on the lower side in the tilting direction, and the pan is attached to the guide member. Two pressing heads, which are in contact with each other at a position higher than the center of gravity of the ladle supported by the holding frame, are movably attached, and the pressing heads are approached to both ends of the guide member along the guide member. It has a structure in which a driving means for removably moving is attached.

[0008]

In the above structure, the ladle is placed inside the pan holding frame, the flange portion of the ladle is supported by the pair of seats and supported horizontally, and then the two pressing heads are operated by the operation of the driving means. When the ladle is brought into contact with the peripheral surface of the ladle from both sides, the ladle is fixed at a constant position in the tilting direction between the ladle holding frame and the pressing head.

Therefore, when the pan holding frame is tilted, the ladle tilts integrally with the pan holding frame. At this time, since the contact position of the pressing head is higher than the center of gravity of the ladle, even if the ladle holding frame and the ladle are tilted largely, the fixed position of the ladle does not change and stable tilting can be performed. It

Further, since the load applied to the pressing head is received by the side edge of the pan holding frame via the guide member, even if the ladle is largely tilted and a large weight is applied to the pressing head, the fixing position by the pressing head is fixed. It does not change, and there is no hindrance to the integration of the ladle and the pan holding frame. In the structure above, the ladle flan
Because it receives between the seats facing each other in the 180 degree direction,
The ladle can be positioned almost at a fixed position, and
The lid can be reliably brought into contact with the peripheral surface of the ladle.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, in the tilting device 1 of the embodiment, a pan holding frame 5 is interposed between a pair of support bases 3 and 3 standing on a base 2 via a rotary shaft 4. Mounted so that it can swing
Between the pot holding frame 5 and the base 2, the pot holding frame 5 is attached to the rotary shaft 4
The tilting cylinders 6, 6 for tilting with the fulcrum as a fulcrum are provided.

The pot holding frame 5 has four side columns 8, 9 and 1 assembled in a square shape so as to surround the peripheral surface of the ladle A.
0 and 11 and a lower frame 12 provided between the opposing side columns 8 and 9 so as to surround the lower side of the ladle A, and the lower frame 12 has a lower surface of the flange portion B of the ladle A. The seats 13, 13 that support both sides of the pan horizontally and are facing each other 180 degrees
It is fixed to the table .

The side pillars 8, 9, 10 and 11 are the ladle A.
It is assembled with a certain gap to the peripheral surface of the pan so that the pan can be easily put in and taken out from above, and when the pan holding frame 5 is tilted, the side pillar 10 that is on the lower side has its length. A guide member 14 is attached along the depth direction.

As shown in FIGS. 4 to 6, the guide member 14 is integrally fixed to the surface of the side column 10 facing the ladle A, and the pressing heads 15 and 1 are provided on the inner surface thereof.
Guide surfaces 17 and 18 are formed in sliding contact with the guide plate 6 to guide the movement thereof in a direction perpendicular to the tilting direction of the pan holding frame.

As described above, the pressing heads 15 and 16 mounted on both sides of the guide member 14 so as to face each other have a pressing plate 19 abutting against the peripheral surface of the ladle A fixed to the tip thereof. The contact position is set to a position higher than the center of gravity of the ladle supported by the pan holding frame 5.

Further, at both ends of the side pillar 10, the pressing heads 15 and 16 are connected to connect them to the guide surface 17,
A drive cylinder 20 for locking, which is moved along 18
21 is attached. This drive cylinder 20, 21
Are operated in conjunction with each other, and the operating stroke thereof has a predetermined gap with respect to the ladle A so that the pressing heads 15 and 16 can be easily put in and taken out. From the retracted position to the pressed position where it comes into contact with the peripheral surface of the flange portion B of the ladle A, the size is set so as to approach and separate from each other.

On the other hand, tilting cylinders 6 and 6 for tilting the pan holding frame 5 are attached to opposing side plates 8 and 9, respectively, and are controlled by a hydraulic control device (not shown) so as to interlock with each other. . In the structure of this embodiment, the tilting cylinders 6, 6 and the pair of support bases 3, 3 for swingably supporting the pan holding frame A are the tilting mechanism 7 of the pan holding frame.
Are configured. Further, a track rail 22 is laid toward the side surface of the base 2 which is on the lower side in the tilting direction, and on the track rail 22, a slag pot D provided with wheels is movably installed.

This embodiment has the above-mentioned structure. To set the ladle A on the pan holding frame, each pressing head 15,
In a state in which 16 is retracted to both ends of the side pillar 10, the ladle A in which the trunnion shafts C, C are hung by a crane or the like is attached to the side pillar 8,
It is put inside 9, 10, 11 and receives the bottom surface of the flange portion B of the ladle by the seats 13, 13 and horizontally supports it. In this state, the ladle A is almost in the middle of the pan holding frame 5 between the catches 13 , 13.
Centered in the center. Further, since there is a gap between each pressing head 15 and 16 and each side pillar and the peripheral surface of the ladle A, and moreover, it is not necessary to firmly fix the trunnion shafts C, C of the ladle A. Putting in and out of the pot can be done easily in a short time.

In order to perform the slag pouring operation, the drive cylinders 20 and 21 are actuated to bring the pressing heads 15 and 16 close to each other and bring them into contact with the peripheral surface of the ladle A from both sides. And
In this state, the tilting cylinders 6, 6 are operated to tilt the pan holding member 5.

In this case, the ladle A comprises a pair of seats 13, 1
Since the position is fixed with respect to the tilting direction between the 3 and the pair of pressing heads 15 and 16, the ladle A and the pan holding frame 5 tilt together and the slag floating above the pig iron is moved downward. It can be poured into the provided slag pan D.

At this time, from the ladle A to the pressing heads 15 and 1,
Since the load applied to 6 is not received by the drive cylinders 20 and 21, but is entirely received by the pan holding frame 5, even if the weight of the ladle A increases and the applied weight increases, the pressing heads 15, 1
The supporting position of 6 does not change, and the ladle tilting operation can be stably performed.

In the above embodiment, the cylinder is shown as the driving means for the pressing head, but it may be driven by mechanical means such as an electric motor.

[0024]

As described above, according to the present invention, the ladle is supported by the horizontal support by the pan holding frame and the pair of pressing heads abutting above the center of gravity of the pan, and the load applied to the pressing head is received. Since the side pillar of the pan holding frame receives the ladle, a heavy ladle can be reliably tilted integrally with the pan holding frame, and can be tilted stably to a large angle.

The ladle is almost fixed between the seats of the pan holding frame.
Since it is positioned at the position, the pressing head can
Can be brought into contact with the surface, Rutotomoni can be reliably supported ladle, there is no need to fix the trunnion shaft, in a short time easily performed effect out insertion and replacement of the ladle is there.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment.

FIG. 2 is a front view of the above.

FIG. 3 is a side view of the above.

FIG. 4 is a side view of the main part of the above.

FIG. 5 is a partially longitudinal front view seen from the line I-I of the above.

FIG. 6 is a plan view of the main part of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tilt device 2 Base 3 Support stand 5 Pan holding frame 6 Tilt cylinder 7 Tilt mechanism 8, 9, 10, 11 Side pillar 13 Receiving seat 14 Guide member 15, 16 Press head 20, 21 Drive cylinder A Ladle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshio Nakamura 4976 Nomura-Minami-cho, Shinnanyo-shi, Yamaguchi Nisshin Steel Co., Ltd. Shunan Steel Works (56) Reference JP-A-59-153569 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A ladle holding frame that allows a ladle to be taken in and out from above and horizontally supports the ladle and a tilting mechanism that tilts the ladle holding frame are provided on the base, and the ladle holding frame is provided in the pot holding frame. , Take
The bottom surface of the flange protruding from the peripheral surface of the pan is paired with 180 degrees.
A pair of seats for receiving at the facing position is provided, and a horizontal guide member extending in a direction perpendicular to the tilting direction is integrally attached to the side of the pan holding frame on the lower side in the tilting direction.
Two pressing heads that abut at a position higher than the center of gravity of the ladle supported by the pan holding frame are movably attached,
A tilting device for a ladle having drive means for moving the pressing heads so as to move toward and away from each other along the guide members at both ends of the guide member.