JPS6354472B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a tundish repair device for performing operations such as punching out metal from a tundish in continuous casting equipment.

(Prior art) After casting, the tandate of continuous casting equipment requires internal repair. Conventionally, this repair equipment consists of a cylinder for punching out metal and a breaker for crushing refractories on the frame of a large gantry truck that runs on rails. They are each hung separately from a gate-shaped frame. In this device, the driver's cab is placed above the side of the breaker integrally with the brake mechanism, and a separate metal punching cylinder is movably attached to the gate-shaped frame, allowing the gate-shaped frame to move. The metal punching cylinder and breaker are operated by movement along the gate-shaped frame in a direction perpendicular to this and movement in the vertical direction. The force and reaction force applied to the cylinder during punching out of the base metal are received by the tundish support mechanism and the gate-shaped frame. Furthermore, when loading and unloading the tundish, a trolley is run to move it to another position.

The above device has the following drawbacks.

(A) The equipment becomes very large and expensive. In other words, since it is a gantry type, it requires running rails and a frame, and the equipment itself is large and occupies a large amount of space.Furthermore, in order to handle the reaction force when pushing out the metal, it is necessary to use a tundice support mechanism and the levitation of the gantry cart. It is necessary to provide a special reaction force support mechanism to prevent damage.

(B) Positioning during punching of metal is difficult because it is done only visually from a remote location.

(C) Because a gantry truck is installed above the tundish, it is not possible to install other equipment such as a device for spraying refractories on the inside of the tundish.

(D) Since it is a gantry type, there are space constraints when manufacturing the device, making it difficult to apply it to a maintenance shop.

(Objective of the Invention) The present invention has been made in order to eliminate such conventional drawbacks, and provides a tundish repair device that is small in size, has no space constraints, and can perform work quickly. It is something to do.

(Structure of the Invention) The first gist of the invention is to provide a floor-mounted self-propelled traveling trolley equipped with a revolving frame equipped with a driver's cab;
A boom attached to the revolving frame, a tilting means for tilting the boom, a rotating boom attached to the tip of the boom and rotating around its own axis by a rotation means, and a tip of the rotating boom. The attachment has a main body connected to the rotating boom, and a main body that is held by the main body and is moved back and forth by a sliding means. a supporting member that moves; a punching means that is attached to the main body and holds the punching rod so as to be movable back and forth; The pushing rod has a shape to be inserted into the nozzle hole of the tandy-shunchment, and the pushing rod is configured to be inserted into the nozzle hole of the tandy-shunchment. The drawing rod is arranged so as to face the nozzle hole.

A second gist of the present invention is that, in the above structure, a breaker consisting of a chisel and a vibration generating means is provided on the opposite side of the support member to the side on which the gripping claws are attached, and the breaker can perform operations such as peeling off the coating material. It has been made possible to do so.

In the above configuration, since the device is composed of a floor-mounted self-propelled vehicle with a compact configuration, it can be moved freely and there are no restrictions on space, and there are no restrictions on other equipment. The gripping claw can be easily locked to the tundish by the push-out means, and the push-out force can be canceled out between the tundish and the attachment by interaction with the slide means, so that the gripping claw can be pushed out to other support means. I try not to apply force.
In addition, it has a compact structure with an attachment attached to the tip of the rotating boom, and in the second invention, the attachment is equipped with a breaker, so that it can be used not only for punching out metal but also for punching out metal.
It is also possible to perform a peeling operation on the coating material.

(Example) In FIG. 1, a driver's cab 10 is attached to a revolving frame 2 mounted on a traveling truck 1, and a boom 3 is attached thereto, and a rotating boom 4 is attached to the tip of this boom 3. The boom 3 is configured to be tiltable by a tilting cylinder (tilting means) 40. Further, the rotary boom 4 is configured to be rotatable around its own axis by a drive means (not shown). An attachment 5 is attached to the tip of the rotating boom 4 so as to be rotatable around a shaft 55.
A tilting cylinder (tilting means) 50 for tilting the attachment 5 is attached between the two.

As shown in FIGS. 2 and 3, the tundish 6 has an inner surface made of a refractory material 67, and trunnions 66 projecting outward on both sides.
is installed. The trunnion 66 has a rectangular cross section so that the supporting state of the tundish 6 can be easily switched between a horizontal state and a vertical state. Further, a nozzle hole 64 and a locking member (reaction force receiving metal fittings) 62 are attached to the bottom part 60, and the reaction force receiving metal fittings 62 are provided at four locations in the illustrated example, and are arranged facing each other at predetermined intervals. It has a pair of plate-shaped members 62a and a pin 63 attached between them.

As shown in FIG. 4, the attachment 5 includes a main body 51 rotatably connected to the rotating boom 4 around a shaft 55, and a support member held by the main body 51 and moved back and forth by a slide means 80. 8, a punching means 7 that is attached to the support member 8 and holds the punch rod 72 so as to be movable back and forth, and a reaction force receiving metal fitting that is attached to the tip of the support member 8 and to the bottom of the tundish. 62 and a gripping claw 53 that draws the tundish 6 towards it.

The support member 8 is configured to be movable back and forth with respect to the main body 51 by a guide member 83 and a guide roller 58 that rolls along the guide member 83, and the piston rod 8 of a slide means 80 consisting of a cylinder.
4 is attached to the main body 51 so as to be movable back and forth by being coupled to the support member 8 via a pin 85. The grip claw 53 is attached to the tip of the support member 8 by a vertical pin 82 so as to be rotatable around the pin 82. A pair of gripping claws 53 are formed in the direction of the plane of the paper in FIG. 5, corresponding to the four reaction force receiving metal fittings 62 shown in FIG.

Further, a punching rod 72 is attached to the tip of the piston rod of the punching means 7, and this punching rod 72 has a shape and size to be inserted into the nozzle hole 64 of the tundish, that is, a shape and size to be inserted into the circular nozzle hole 64. It is composed of a rod-shaped body. Also, this punching rod 7
2, the gripping claw 53 is connected to the pin 63 of the reaction force receiving hardware.
The gripping claw 53 is held so that the punching rod 72 faces the nozzle hole 64 of the tundish when the punching rod 72 is engaged with the
The positional relationship with is set.

Further, on the opposite side of the supporting member 8 to the side on which the gripping claws are attached, a breaker 9 consisting of a chisel 90 and a vibration generating means for imparting vibration to the chisel 90 is attached.

Next, the operation of this device will be explained. First, as shown in FIG. 4, the tundish 6 is supported via a trunnion 66 by appropriate supporting means so that its bottom is vertical. Then, the traveling truck 1 is moved to a position opposite to the tundish 6, the tilting cylinders 40 and 50 are operated, and the rotary boom 4 is rotated to move the attachment 5 to a position facing the bottom of the tundish 6. Next, the support member 8 is advanced by the slide means 80, the grip claw 53 is brought close to the reaction force receiving metal fitting 62 as shown in the figure, and from this state, the attachment 5 is lowered and the support member 8 is retreated by the slide means 80, As shown in FIG. 5, the gripping claw 53 is engaged with the pin 63. In this state, the tip of the punching rod 72 faces the nozzle hole 64 as described above. Note that the gripping claw 53 is attached to the pin 6.
3, the gripping claws 53 rotate around the pin 82, so that the pair of gripping claws 53 and the pins 63 of each reaction force receiving metal can be evenly locked.

Then, the punching rod 72 is press-fitted into the nozzle hole 64 by the punching means 7. Nozzle hole 64 of punching rod 72
By press-fitting into the tundish 6, the base metal 65 in the tundish 6 is separated from the refractory 67 and extruded from the tundish 6. After extruding the base metal 65, the punching means 7 moves the punching rod 72 backward, and the sliding means 80 moves the support member 8 forward to release the gripping claw 53.
and the pin 63, and the attachment 5 is moved back from the state shown in FIG.

In addition, during the above punching operation, the tundish 6
A force P in the left direction in FIG.
A rightward force P acts on the support member 8 through the support member 8 .
On the other hand, the leftward force P applied to the tundish 6 passes from the pin 63 to the gripping pawl 53 to the support member 8.
A leftward force P acts on the tundish 6, and as a reaction force, a rightward force acts on the tundish 6 through the pin 63 by the gripping claw 53. In this way, since the rightward force P and the leftward force P act on the attachment support member 8 and the tundish 6, these forces cancel each other out and the tundish 6
No force is applied to the support portion of the main body 51 and the support portion of the main body 51 (rotary boom 4) during punching.

In addition, in order to remove the coating material on the inner surface of the tundish 6, as shown in FIG. Rotate to point Chiss90 forward. and tilting cylinder 40
Through the operations in step 50, the chisel 90 is applied between the refractory material 67 and the coating material 69, compressed air is supplied from a drive source (not shown), the chisel 90 is vibrated by the vibration generating means, and the coating material 69 is peeled off. Further, the work of breaking down the refractories and bricks of the tundish 6 may be carried out in the same manner.

In this way, since the work is carried out by the trolley 1 traveling on the floor without using large equipment such as a gate-shaped frame, the equipment is small and there are no restrictions on other equipment. Furthermore, since the reaction force is absorbed by the attachment itself, there is no need for a large reaction force support mechanism.

(Effects of the Invention) As explained above, the present invention equips a traveling cart that runs on the floor with a working device, and allows the gripping claw to be easily tandishized by the punching means provided on the attachment at the tip of the rotating boom. The push-out force is canceled out between the tundish and the attachment so that the push-out force is not applied to other supporting means.
In addition, it is possible to create a compact structure with an attachment attached to the tip of the rotating boom, and by equipping this attachment with a breaker, it can be used not only for punching bare metal but also for peeling off coating materials. This can be done with one compact device. Therefore, the work of punching out the bare metal of the tandate and the work of peeling off the coating material can be performed extremely easily, and
There is an advantage that the tundish and the supporting equipment for this device can also be downsized, and there are no restrictions on other equipment.

[Brief explanation of the drawing]

Fig. 1 is a side view of the entire device showing an embodiment of the present invention, Fig. 2 is a bottom view of a tundish in which this device is used, Fig. 3 is a sectional view thereof, and Fig. 4 is a schematic enlarged sectional view of the attachment. , FIG. 5 is a schematic enlarged sectional view of the grasping claw in a state in which it is locked to the tundish, and FIG. 6 is a side view of the device in the coating material peeling operation state. DESCRIPTION OF SYMBOLS 1...Traveling trolley, 2...Swivel frame, 3...Boom, 4...Rotating boom, 5...Attachment, 6...
tandice tray, 7...pushing means, 8...support member,
9... Breaker, 10... Driver's cab, 50... Tilt cylinder (tilting means), 51... Attachment body, 5
3...Gripping claw, 72...Pushing rod, 80...Sliding means, 90...Chis.

Claims (1)

[Scope of Claims] 1. A floor-based self-propelled traveling trolley equipped with a revolving frame equipped with a driver's cab, a boom attached to the revolving frame, a tilting means for tilting the boom, and a tip end of the boom. A rotary boom that is attached to the rotary boom and rotates about its own axis by a rotation means, an attachment that is attached to the tip of the rotary boom, and a tilting means that tilts the attachment with respect to the rotary boom. , the attachment includes a main body connected to the rotating boom, a support member held by the main body and movable back and forth by a slide means, and a pusher attached to the main body to hold the pusher rod so as to be movable back and forth. and a grasping claw that is attached to the tip of the support member and that engages with a locking member on the bottom of the tundish to draw the tundish, and the punching rod has a shape that is inserted into a nozzle hole of the tundish. A tundish repair device characterized in that the punching rod is arranged to face a nozzle hole while the gripping claw is locked to a locking member. 2. A floor-based self-propelled traveling trolley equipped with a revolving frame equipped with a driver's cab, a boom attached to the revolving frame, a tilting means for tilting the boom, and a rotating means attached to the tip of the boom. a rotary boom that rotates about its own axis by a rotary boom; an attachment attached to the tip of the rotary boom; and a tilting means for tilting the attachment relative to the rotary boom; A main body connected to a boom, a support member held by the main body and moved back and forth by a sliding means, a punching means attached to the main body and holding a punching rod so as to be movable back and forth, and the support member and a gripping claw attached to the tip of the tundish, which engages with a locking member on the bottom of the tundish to draw the tundish, and the punching rod is configured to be inserted into a nozzle hole of the tundish, The punching rod is arranged so as to face the nozzle hole with the gripping claw being locked to the locking member, and a breaker comprising a chip and a vibration generating means is provided on the opposite side of the supporting member to the gripping claw attachment side. A tundish repair device characterized in that it is attached with.