KR200172591Y1 - Interchangeable apparatus of descaler head - Google Patents

Abstract

The present invention relates to a descaler head exchange device that facilitates replacement and maintenance work by improving the structure of a descaler head used to remove scale during marking of slabs.

The present invention secures the spring and the holder which is extended downward from one side of the upper cover to be located on the upper side of the descaler head and the holder supported by the holder therein and at the same time has a large diameter into which a fixed ball is inserted, An extension part provided with a supporter having a small diameter in which a rotating ball is inserted radially toward the center; A pair of supports formed to correspond to the supporters of the extension part and detachably coupled to and fixed to upper and lower flanges of the descaler head; A fitting hole having a rectangular shape at the center of the flange and having an outwardly curved semicircular fixing groove at each corner; The upper part of the pulley which transmits power to the descaler head is configured to be coupled to the fitting portion protruding to correspond to the fitting hole to ensure ease of operation, safety and solid fixing of the drive motor when replacing the descaler head.

Description

Descaler Head Exchanger {INTERCHANGEABLE APPARATUS OF DESCALER HEAD}

The present invention relates to a descaler head exchange device, and more specifically, to a structure of a descaler head used for spray marking operations (hereinafter referred to as 'marking operations') for identifying slabs produced in a performance factory. The present invention relates to a descaler head exchange device that can be improved and facilitated replacement and repair, while at the same time distributing the force applied to each component to extend the life of the equipment.

The performance factory is a factory where the continuous casting process is processed. Usually, molten steel that has been refined in steelmaking is transported to the performance column to vary the cooling method according to the type of steel, determine the casting speed, and secure the internal or external quality of the slab It is an intermediate process that is cut and sent to a hot rolling mill.

The slabs produced in these performance factories are marked with engraving the charge number and slab number on the side of the slab so that they can be identified and managed.

In order to do this marking, the scale (iron oxide) generated on the side of the slab must be removed.

Therefore, the spray marker 10 equipped with the descaler 20 like FIG. 1 and FIG. 2 (a) and (b) is used so that marking operation can be performed simultaneously with descaling.

That is, when the slab 12 transported by the roller table 14 stops at the marking position, the spray marker 10 moves forward to perform the marking operation on the side cross-section of the slab 12. To mark the ruler.

When the slab 12 is transferred to the roller table 14 and arrives in front of the spray marker 10, the spray marker 10 is advanced and at the same time the head 30 'of the descaler 20 is rotated. .

Advancing of the spray marker 10 is stopped when the scaling sensor 16 embedded in the spray marker 10 is advanced close to the side of the slab 12 and the stop sensor 18 detects the adhesion thereof. The descaler head 30 'removes the scale generated in the cross section of the slab 12 to be marked while repeating the forward and backward movements.

In parallel with this, the spray marker head 34 marks the information (charge number and slab number) given by the computer operator or the operator at the position of the slab 12 from which the scale is removed.

Subsequently, when the marking operation is completed, the spray marker 10 is reversed to return to the initial position to finish the operation.

In this process, the descaler head 30 'is driven by the rotating motor M, the belt 24 and the pulley 26 simultaneously with the advancement of the spray marker 10. It is rotated by the power transmission system, and by removing the scale formed on the side of the slab 12 by the forward and backward operation of the cylinder (S) fixed to the rear end side of the descaler (20).

In addition, the descaler head 30 'is rotatable by being fixed to the fixing bolt 28 formed at the end of the rotation shaft connected to the pulley 26, the tension control roll 23 is smooth of the belt 24 It is provided to guide the rotation.

However, among the components of the descaler 20, in which the forward and backward movements are repeatedly performed by the cylinder 40, in particular, the driving motor M fixed to the lower rear side is often dropped by its own load and shaking to perform descaling. A problem arises that prevents it.

In addition, the descaler head 30 'which is in contact with the high temperature slab 12 for a long time needs to be replaced periodically because of severe abrasion, and is usually fixed while being fixed to the fixing bolt 28 so that the slab ( The fixing bolt 28 and the descaler head 30 'are expanded to each other and are completely in close contact with each other, and thus the replacement work is not easy.

Moreover, there is a risk that a worker may be burned due to the high temperature of the slab 12 while the work is in progress, and the difficulty of identifying the slab 12 due to the delay of replacement work of the descaler head 30 'is caused. There are also disadvantages that occur in product production.

The present invention was devised to solve this problem in consideration of the above-described problems, and the support structure of the drive motor for driving the descaler head while fixing the descaler head to have easy rotation by means such as a ball bearing. The purpose of the present invention is to provide a descaler head exchange device capable of securing the descaler head replacement work, the safety of the replacement work, and the rigidity of the driving motor.

This object of the present invention is a drive motor, a rotating shaft, the upper cover is rotatably coupled to the rotating shaft to cover the upper surface of the descaler installed in a substantially triangular shape; A spring extending downward from one side of the upper cover to be positioned above the descaler head, a spring supported by the holder is installed therein, and a large diameter is formed at the same time that the fixing ball is inserted in the center of the holder. An extension having a supporter having a small diameter in which a rotating ball is inserted radially about the large diameter; A pair of supports formed to correspond to the supporters of the extension part and detachably coupled to and fixed to upper and lower flanges of the descaler head; A fitting hole having a rectangular shape at the center of the flange and having an outwardly curved semicircular fixing groove at each corner; The upper part of the pulley which transmits power to the descaler head is achieved by configuring a coupling portion protruding to correspond to the fitting hole.

1 is a schematic perspective view showing an operating state of a spray marker according to the prior art and an enlarged exploded perspective view of a main portion of a descaler;

2 (a), (b) is an operating state of the spray marker according to the prior art,

3 is an exploded perspective view of the descaler according to the present invention;

Figure 4a is an enlarged cross-sectional view of the main portion of the descaler according to the present invention,

Figure 4b is a perspective view of the descaler head according to the present invention,

Figure 5 (a), (b) is a perspective view of the descaler and the installation state side cross-sectional view according to the present invention.

Explanation of symbols on the main parts of the drawings

10: spray marker, 12: slab,

20: descaler, 22: rotating gear,

24: belt, 26: pulley,

30 ', 30: descaler head, 30a, 30b: support,

32: rotation axis, 34: fixed pin,

50: upper cover, 52: extension,

54: spring, 56: holder,

58: supporter, 60: rotating ball,

62: fixed ball, M: drive motor,

S: cylinder.

Hereinafter, a preferred embodiment according to the present invention will be described in more detail along the accompanying drawings.

3 is an exploded perspective view of the descaler according to the present invention.

As shown, the descaler 20 has a drive motor M reversely installed on one side thereof, and a descaler head 30 rotatable by a belt 24 for transmitting power of the drive motor M. It is installed at intervals with the drive motor (M), the rotation axis 32 which is the center of rotation of the descaler 20 is formed at a point substantially triangular with them.

The upper cover 50 and the tension adjusting roll 23 covering the lower surface of the descaler 20 are provided, and the belt 24 is provided inside the tension adjusting roll 23. It is built.

In addition, the pulley 26 is axially coupled by the rotary gear 22 and the descaler head 30 and the coupling portion 27 fixed to the rotating shaft of the drive motor (M) in the tension control roll (23). Is provided so that they are interlocked by the belt 24.

In addition, the assembly is provided with a means for operating the descaler 20 and the board 70 for fixing the descaler 20 is provided.

Figure 4a is an enlarged cross-sectional view of the main portion of the descaler according to the present invention, Figure 4b is an enlarged perspective view of the main portion of the descaler head according to the present invention.

As can be seen from the figure, the extension portion 52 is formed downwardly extended at one side of the upper cover 50, that is, the position corresponding to the descaler head 30.

A pair of springs 54 are installed in the extension part 52, and a supporter 58 is provided to close the open end of the extension part 52, and the spring 54 is disposed in the supporter 58. A holder 56 that can be supported is interposed.

The supporter 58 is fixed with a clearance to flow to an open end of the extension portion 52 to some extent.

In addition, a large diameter is formed at the center of the supporter 58 so that the fixing ball 62 is inserted and forms approximately 60 ° with respect to the center thereof, and a plurality of radial diameters, preferably six small diameters, are formed within the small diameter. The rotating ball 60 is inserted.

The descaler head 30 is composed of a plurality of disks D interposed on the fixing pin 34.

The disk D is a main member for removing the scale formed on the slab surface, and is formed in a sawtooth shape as shown.

In addition, the disk D is preferably such that approximately 23 disks D are set per line.

The fixing pin 34 is vertically fitted to the flange 31 constituting the upper and lower surfaces of the descaler head 30. To this end, a plurality of holes in which the fixing pin 34 can be inserted are formed in the flange 31 at regular intervals along the circumferential direction.

In addition, the central portion of the flange 31 has a rectangular fitting hole 38 is formed, and each corner of the fitting hole 38 is formed with an outwardly curved semicircular fixing groove 36.

These fittings 38 and the fixing groove 36 is formed in a shape corresponding thereto such that the engaging portion 27 of the pulley 26 shown in FIG. 3 is easily inserted, and in particular, the fixing groove 36 is It is to perform a function similar to the keyway.

The upper and lower portions of the flange 31 are provided with a pair of supporters 30a and 30b in a disk shape.

In particular, the support 30a provided in the upper portion of the flange 31 is formed in a shape corresponding to the supporter 58, that is, a large diameter is formed in the center of the portion of the fixed ball 62 is inserted into the large diameter A plurality of small diameters corresponding to the small diameter of the supporter 58 in the circumferential direction is formed.

Therefore, when the descaler head 30 is rotated under power, the descaler head 30 can be easily rotated using the fixed ball 62 inserted into the large diameter as the rotation axis.

5 (a) and (b) is a perspective view and a side cross-sectional view of the descaler according to the present invention.

Referring to the operation relationship of the present invention with reference to the drawings as follows.

The assembled descaler 20 is mounted on the skid car 80 and mounted on the spray marker.

Thereafter, the installation is completed by connecting the skid car 80 with the cylinder (S) to move forward and backward.

In this state, when the slab is in the correct position, as the spray marker is advanced, the driving motor M is driven and the cylinder S is operated to perform descaling.

If it is necessary to replace the descaler head 20 due to wear or other reasons during or before the operation, the supporter 58 of the upper cover 50 is rotated when the upper cover 50 is rotated about the rotation shaft 32. The fixed ball 62 and the rotating ball 60 inserted in the) is separated from the large diameter and the small diameter of the support 30b while being released and separated while releasing the coupling relationship with the descaler head 30.

In this state, when the operator lifts the descaler head 30 upward, the descaler head 30 which is substantially key-coupled with the engaging portion 27 of the pulley 26 is easily separated.

Therefore, the disk D of the descaler head 30 can be easily replaced.

It is well known that when the replacement of the disk D is completed, it can be easily reassembled by reversing the above process in reverse order.

In addition, the dropping phenomenon of the driving motor M is eliminated by providing the upper cover 50 at the same time as it is installed without installing the driving motor M in reverse.

As described in detail above, the descaler head exchange apparatus according to the present invention provides the following effects.

First, since the descaler head can be easily removed, the replacement time of the disc is shortened, thereby improving the workability and improving the safety according to the ease of operation.

Second, by fixing the driving motor on the upper and lower sides, the fall of the motor is eliminated during the operation, thereby improving the stability of the operation.

Third, by improving the coupling structure between the pulley and the descaler head in the form of key coupling rather than bolt type, there is an advantage in that the detachment work between them quickly and easily.

Claims (1)

An upper cover coupled to the rotation shaft 32 and rotatably installed to cover the upper surface of the descaler 20 in which the driving motor M, the rotation shaft 32, and the descaler head 30 form a substantially triangular shape ( 50); A spring 54 extending downward from one side of the upper cover 50 to be positioned above the descaler head 30 and supported by the holder 56 is installed therein, and the holder 56 is disposed. And an extension portion 52 having a supporter 58 formed therein with a large diameter into which a fixed ball 62 is inserted and a small diameter into which a rotating ball 60 is inserted radially about the large diameter. A pair of supports (30a, b) formed to correspond to the supporters (58) of the extension portion (52) and detachably coupled to and fixed to upper and lower flanges (31) of the descaler head (30); A fitting hole 38 formed in the center of the flange 31 and having a semicircular fixing groove 36 outwardly curved at each corner; Descaler head exchange apparatus, characterized in that the upper portion of the pulley (26) for transmitting power to the descaler head (30) comprises a coupling portion (27) protruding to correspond to the fitting hole (38).