JPS6225462B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a first roller apron for curved continuous casting equipment, and in particular, a slab is guided by a fixed frame from the inside and outside of its radius of curvature, and by movable frames from both sides in the width direction. Regarding the First Stroller Apron.

In a conventional fast roller apron of this type, a movable frame is disposed between fixed frames, and the movable frame is slidably guided by a wear plate attached to the inside of the fixed frame. However, because an external force acts on the movable frame due to its own weight, which tries to deviate the movable frame to the outside of the radius of curvature, lateral vibration occurs when the movable frame is moved to change the width of the mold. This caused difficulty in moving the movable frame smoothly. For this reason, in the past, a large load was applied to the drive source and power transmission mechanism of the movable frame, resulting in damage to the drive source and the power transmission mechanism, especially the worm and worm wheel that were the power transmission mechanism.

The present invention was devised to solve these conventional problems, and an object of the present invention is to provide a fast roller apron that can facilitate the movement of a movable frame.

The fast roller apron according to the present invention has a guide roller interposed between the fixed frame and the movable frame on the outside of the radius of curvature, and the guide roller guides the movable frame in its moving direction while bearing the external force. be.

Next, one embodiment of the fast roller apron according to the present invention will be described based on the drawings.

In FIGS. 1 to 4, the first roller apron 1 bends a slab 6 by a pair of long side frames 2, 3, which are fixed frames, and a pair of short side frames 4, 5, which are movable frames. The long side frames 2 and 3 are in contact with the slab 6 from the inside and outside directions of the radius of curvature. Further, the short side frames 4 and 5 are arranged between the long side frames 2 and 3, and are moved appropriately in the width direction of the slab 6 so as to come into contact with both sides of the slab 6 in the width direction. A cast iron wear plate 7 is attached to the front surface of the frames 2, 3, 4, 5 in contact with the slab 6.
moves along the wear plates 7, 7 of the frames 2, 3. A guide roller 8 is attached to the frame 3 located on the outside of the radius of curvature of the slab 6, and guides the frames 4, 5 in the moving direction while being in rolling contact with the frames 4, 5. The external force that tends to cause deflection is borne by this guide roller 8. This ensures smooth movement of the frames 4, 5. A pair of upper and lower guide rollers 8 are provided for each frame 4 and 5.
The frames 4 and 5 are also prevented from swinging in the inner and outer directions of the radius of curvature of the slab 6.

The guide roller 8 is supported by a cylinder 9 inserted into the frame 3 from the inside so that it can move forward and backward, and by moving forward and backward, it can support the frames 4 and 5 at appropriate positions. Adjustment bolt 1 is attached to frame 3 from the outside.
0 is screwed into the cylinder 9, and this adjusting bolt 10 is inserted into the cylinder 9.
It is rotatably fitted inside. That is, when the adjusting bolt 10 is rotated, the adjusting bolt 10 moves forward and backward with respect to the frame 3, and thereby the cylinder 9 moves forward and backward together with the adjusting bolt 10. cylinder 11
A projecting piece 11 is provided protrudingly on the outer periphery of the projecting piece 11.
is engaged with a sliding groove 12 bored in the frame 3 in the direction in which the cylinder 9 moves forward and backward. Therefore, the cylinder 9 can freely move forward and backward without rotating, and thereby the cylinder 9 can hold the guide roller 8 in a direction in which the guide roller 8 can guide the frames 4 and 5. A lock nut 13 is screwed onto the adjustment bolt 10 on the outside of the frame 3, and the lock nut 13 fixes the adjustment bolt 10 by coming into contact with the outer peripheral surface of the frame 3.

An advancing/retracting mechanism 14 is connected to the rear surfaces of the frames 4, 5, and the frames 4, 5 are advanced or retracted by this advancing/retracting mechanism 14. The advancing/retracting mechanism 14 is a hydraulic motor 15;
It includes bevel gears 16, 17, a worm reducer 18, and a forward/backward shaft 19, and the forward/backward shaft 19 is pivotally mounted on the back surfaces of the frames 4, 5. The forward and backward shaft 19 is screwed into a worm wheel (not shown) in the worm reducer 18 and is driven forward and backward by the rotational driving force of the hydraulic motor 15 to move the frames 4 and 5 back and forth.

As mentioned above, the fast roller apron according to the present invention has a guide roller interposed between the fixed frame and the movable frame on the outer periphery of the radius of curvature, and the guide roller allows the movable frame to move while bearing the external force applied to the movable frame. Since the movable frame is guided in the direction, it has an excellent effect of smoothing the movement of the movable frame. In the above embodiment, the guide roller is mounted on the fixed frame, but it goes without saying that the same effect can be obtained even if the guide roller is mounted on the movable frame. However, in order to adjust the position of the guide roller, it is more advantageous to mount the guide roller on the fixed frame side.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a fast roller apron according to the present invention, FIG. 2 is a side view taken along the -arrow line in FIG. 1, FIG. 3 is a side view taken along the -arrow line in FIG. 1, and FIG. The figure is an enlarged cross-sectional view of the guide roller of FIG. 3. 1... First Stroller Apron, 2, 3...
Long side frame, 4, 5...Short side frame, 6...
Slab, 7... Wear plate, 8... Guide roller, 9... Cylinder, 10... Adjustment bolt, 11
... Projection piece, 12 ... Sliding groove, 13 ... Lock nut, 14 ... Advancement/retraction mechanism, 15 ... Hydraulic motor, 1
6, 17...bevel gear, 18...worm reducer, 19...advance/retreat axis.

Claims (1)

[Claims] 1. A fast roller apron for a curved continuous casting equipment, in which the slab is guided from the inside and outside of the radius of curvature by a fixed frame and from both sides of the width by a movable frame, the movable frame being a fixed frame. In the fast roller apron, which is movable in the width direction between the fixed frame and the movable frame located outside the radius of curvature, a guide roller capable of guiding the movable frame in the moving direction is provided between the fixed frame and the movable frame. A fast roller apron characterized by being attached to a frame so that it can move forward and backward.