WO2016056870A1

WO2016056870A1 - Shock-absorbing device of continuous casting oscillator

Info

Publication number: WO2016056870A1
Application number: PCT/KR2015/010691
Authority: WO
Inventors: 강준혁; 곽유라; 이휘웅; 최병용; 강기판
Original assignee: 주식회사 포스코건설; 주식회사 포스코
Priority date: 2014-10-10
Filing date: 2015-10-08
Publication date: 2016-04-14
Also published as: CN107107172A; KR101649677B1; KR20160042663A; CN107107172B

Abstract

The present invention relates to a shock-absorbing device of a continuous casting oscillator, provided between a fixed part of the lower part and a moving part of the upper part of the continuous casting oscillator for vibrating a continuous casting mold, the device comprising: a first shock-absorbing part coupled to the upper part of the fixed part so as to absorb shock by means of vertical expansion and contraction; and a second shock-absorbing part coupled between the upper part of the first shock-absorbing part and the lower part of the moving part so as to absorb shock by means of horizontal movement. Therefore, the present invention couples and provides any two of the first shock-absorbing part, the second shock-absorbing part, and a supporting part between the fixed part and the moving part, thereby doubly absorbing vibration of the moving part in the continuous casting oscillator, which vibrates the continuous casting mold, so as to improve shock-absorbing performance.

Description

Shock Absorber of Oscillator for Continuous Casting

The present invention relates to a shock absorber of a continuous casting oscillator, and more particularly, to a shock absorber of a continuous casting oscillator provided between a fixed part and a movable part of a continuous casting oscillator for vibrating a continuous casting mold.

In general, a mold facility used in a continuous casting machine is a facility for continuously producing cast steel by cooling molten steel supplied from a tundish. A mold for solidifying molten steel primarily and an oscillator for vibrating the mold up and down. It consists of (Oscillator).

By controlling the oscillator up and down during casting of the cast steel, it controls the inflow of lubricant to prevent breakout of the molten steel by breaking the solidified film by the friction force generated between the mold wall and the solidified film of the cast steel. do.

Breakout can be categorized into two main factors, one of which is a control factor that causes abnormal lubrication. The breakout caused by this control factor is the waveform, amplitude, and frequency of the vibration of the mold so that powder, which is a lubricant, reduces friction between the mold wall and the solidification film due to the vibration of the mold and flows smoothly between the mold wall and the solidification film. This is caused by the lack of control of the back, and as a result, the coagulation film is torn due to excessive friction between the mold wall and the coagulation film.

The other factor is caused by a mechanical factor, and the breakout caused by a mechanical factor hits the surface of the cast due to abnormal vibration of the mold back, front, left, and right, due to an abnormality of a device for guiding up and down vibration or hydraulic equipment. Breakout occurs by distorting the vibration waveform by irregularly disturbing the vertical movement.

The performance of the oscillator, which is a mold vibrator, requires a stable mold apparatus and an oscillator because mechanical problems may cause the original performance not to be exhibited even if the control performance is excellent.

The conventional oscillator shock absorber is composed of a buffer member provided between the fixed part and the movable part. There is a problem that the replacement operation is difficult because the oscillator not only has a restraining function against the left and right swings when the oscillator is driven, but also has a complicated configuration.

In addition, when a leaf spring is used as a shock absorber of a conventional oscillator, phase vibration and abnormal vibration due to the restoring force of the leaf spring frequently occur, or rolling occurs in the central axis, thereby causing vertical vibration such as hitting the surface of the cast steel. There was also a problem that could not be kept stable.

In addition, when a coil spring is used as a shock absorber of a conventional oscillator, there is a problem that rolling occurs between both coil springs due to the variation in the center of gravity during vibration of the mold, which further worsens the fluctuations in the left and right directions.

The present invention has been made to solve the above-mentioned problems, the continuous casting oscillator in the continuous casting oscillator to vibrate the mold for continuous casting buffer of the continuous casting oscillator that can double the buffer to improve the buffering performance It is an object to provide a device.

In addition, another object of the present invention is to provide a shock absorber of a continuous casting oscillator capable of finely adjusting and buffering the separation distance between the second buffer part and the fixed part by means of a fingering means.

It is another object of the present invention to provide a shock absorber of the continuous casting oscillator which prevents the left and right swing of the shock absorbing means and limits the vibration position of the shock absorbing means.

In addition, another object of the present invention is to provide a shock absorber of the continuous casting oscillator that can easily absorb the up and down vibration of the movable portion and at the same time extend the durability of the shock absorbing means and maintain a long life.

The present invention for achieving the above object is a buffer of the continuous casting oscillator provided between the lower portion of the continuous casting oscillator oscillating the continuous casting mold and the upper movable portion, A first buffer unit 10 coupled and buffered by stretching in the vertical direction; And a support part 30 coupled between the lower part of the first buffer part 10 and the upper part of the fixing part.

In addition, the present invention is a shock absorber of the continuous casting oscillator provided between the lower portion of the continuous casting oscillator oscillating the continuous casting mold and the upper movable portion, coupled to the lower portion of the movable portion, and rotates in the left and right directions A second buffer portion 20 buffered by; And a support part 30 coupled between the lower part of the second buffer part 20 and the upper part of the fixing part.

In addition, the present invention is a shock absorber of the continuous casting oscillator provided between the lower portion of the continuous casting oscillator oscillating the continuous casting mold and the upper movable portion, coupled to the upper portion of the fixed portion, A first buffer part 10 that is buffered by expansion and contraction; And a second buffer unit 20 coupled between an upper portion of the first buffer unit 10 and a lower portion of the movable unit and buffered by rotation in left and right directions.

The first buffer part 10 of the present invention, the lower support piece is installed on the lower; An upper support piece spaced apart from an upper portion of the lower support piece; Tungsten means provided between the lower support piece and the upper support piece to cushion vibration; And a support pin installed between the lower support piece and the upper support piece to prevent rocking of the fingering means. The gripping means of the present invention comprises a plurality of coil springs.

The second buffer unit 20 of the present invention, the lower plate is installed on the lower; An upper plate spaced apart from each other to vibrate up and down on an upper portion of the lower plate; A guide pin placed in the lower plate to guide vertical vibration of the upper plate; A vibration adjusting piece installed on an upper portion of the guide pin to adjust a vertical vibration position of the upper plate; And at least one buffer means installed between the lower plate and the upper plate to cushion vibration.

The buffer means of the present invention, the first pin housing is fixed to the lower surface of the upper plate; A second pin housing fixed to an upper surface of the lower plate; And a third pin housing connecting the first pin housing and the second pin housing in a link structure by a plurality of arms, wherein the first pin housing to the third pin housing and the facing portion of the arm are formed of a rubber spring. Is connected via a medium to damp the vibration while limiting the rotation of the arm.

As described above, in the present invention, the movable part in the continuous casting oscillator vibrates the mold for continuous casting by installing any two of the first buffer part, the second buffer part, and the support part between the fixed part and the movable part. Provides the effect of double buffering vibration to improve the buffering performance.

In addition, by installing the holding means consisting of a plurality of coil springs in the vertical direction as the first buffer portion and supported by the support pin, the distance between the second buffer portion and the fixed portion can be buffered so as to finely adjust by the touch means. Provide the effect.

In addition, by installing the guide pin and the vibration control piece between the lower plate and the upper plate of the second buffer portion, it is possible to prevent the left and right swing of the buffer means and at the same time limit the vibration position of the buffer means.

In addition, by linking the plurality of pin housing and the arm to the buffer means and the rubber spring, the shock absorbing means to facilitate the up and down vibration of the movable portion at the same time, it is possible to extend the durability of the buffer means and maintain long life.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing an oscillator including a shock absorber of an oscillator for continuous casting according to a first embodiment of the present invention.

Fig. 2 is a front view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the first embodiment of the present invention.

Fig. 3 is a side view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the first embodiment of the present invention.

4 is a block diagram showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention.

Fig. 5 is a front view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention.

Fig. 6 is a side view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention.

7 is a front view showing a second buffer part of the shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention.

Fig. 8 is a side view showing a second buffer portion of the shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention.

Fig. 9 is a block diagram showing a second buffer portion of the shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention.

Fig. 10 is a block diagram showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the third embodiment of the present invention.

Fig. 11 is a front view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the third embodiment of the present invention.

12 is a plan view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the third embodiment of the present invention.

Fig. 13 is a side view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to the third embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a first preferred embodiment of the present invention.

1 is a block diagram showing an oscillator provided with a shock absorber of the continuous casting oscillator according to a first embodiment of the present invention, Figure 2 is a buffer device of the oscillator for continuous casting according to a first embodiment of the present invention It is a front view which shows one oscillator, and FIG. 3 is a side view which shows the oscillator provided with the shock absorber of the oscillator for continuous casting by the 1st Example of this invention.

As shown in Figs. 1 to 3, the shock absorber of the continuous casting oscillator of the first embodiment includes a first buffer part 10 and a support part 30, and the oscillator for continuous casting oscillates the mold for continuous casting. It is a shock absorber of the continuous casting oscillator is installed in the separation space between the lower fixing part 110 and the upper movable part 120.

The continuous casting oscillator is installed upstream of the continuous casting machine, the fixing part 110 is fixedly installed at the bottom and the actuator 130 is installed in the middle portion of the fixing part 110 to impart vibration, the actuator 130 At the end of the fixed part 110 and the movable part 120 spaced apart a predetermined distance is installed is vibrated in the vertical direction by the actuator 130.

The first shock absorbing portion 10 is a main shock absorbing member which is coupled to the lower portion of the movable portion 120 to be cushioned by stretching in the vertical direction, and as shown in FIG. 3, the lower support piece 11 and the upper support piece 12. It consists of a gripping means 13 and a support pin 14.

The lower support piece 11 is a flat plate-shaped support member provided below the first shock absorbing portion 10. The lower support piece 11 is coupled to and fixed to the lower support piece 13 so as to support the lower portion of the support means 13. do.

The upper support piece 12 is a flat support member coupled to the lower part of the movable part 120 and spaced apart from the upper part of the lower support piece 11, and the upper part of the fingering means 13 is coupled thereto and fixed thereto. The upper part of the means 13 is supported.

Gripping means 13 is a buffer member which is installed in the vertical direction between the lower support piece 11 and the upper support piece 12 to cushion the vibration of the movable portion 120, the vibration of the up and down direction of the movable portion 120 It consists of a plurality of coil springs.

The support pin 14 is a support member provided in the vertical direction between the lower support piece 11 and the upper support piece 12, to prevent the left and right swings of the gripping means 13 and to cushion the gripping means 13. It is supported to maintain the direction in the vertical direction.

The support part 30 is a support member coupled between the lower part of the first shock absorbing part 10 and the upper part of the fixing part 110. The support part 30 includes a lower part of the first shock absorbing part 10 and the fixed part ( A space between the upper portions of the 110 is supported in a fixed state.

Hereinafter, with reference to the accompanying drawings will be described in detail a second preferred embodiment of the present invention.

4 is a block diagram showing an oscillator having a buffer of the continuous casting oscillator according to a second embodiment of the present invention, Figure 5 is a buffer of the oscillator for a continuous casting according to a second embodiment of the present invention 6 is a front view showing an oscillator, FIG. 6 is a side view showing an oscillator provided with a shock absorber of the oscillator for continuous casting according to a second embodiment of the present invention, and FIG. 7 is for continuous casting according to a second embodiment of the present invention. 8 is a front view showing a second buffer part of the shock absorber of the oscillator, FIG. 8 is a side view showing a second buffer part of the shock absorber of the oscillator for continuous casting according to the second embodiment of the present invention, and FIG. 9 is a second embodiment of the present invention. It is a block diagram which shows the 2nd buffer part of the shock absorber of the oscillator for continuous casting by an example.

As shown in Fig. 4 to Fig. 6, the shock absorber of the continuous casting oscillator of the second embodiment includes a second buffer portion 20 and a support portion 30, and the oscillator for continuous casting oscillates the mold for continuous casting. It is a shock absorber of the continuous casting oscillator is installed in the separation space between the lower fixing part 110 and the upper movable part 120.

The second shock absorbing part 20 is a shock absorbing member which is coupled to the lower part of the movable part 120 to be cushioned by rotation in the left and right directions, and as shown in FIGS. 7 to 9, the lower plate 21 and the upper plate 22. , Guide pin 23, vibration control piece 24, the shock absorber

The lower plate 21 is a flat plate-shaped support member provided below the second buffer part 20. Since the lower part of the buffer means is fixedly coupled thereto, the lower plate 21 supports the lower part of the buffer means.

The upper plate 22 is a flat plate-shaped support member installed at a predetermined distance to vibrate up and down on the upper portion of the lower plate 21, and the upper portion of the buffer means is coupled to and fixed to support the upper portion of the buffer means. The through hole is formed in the center portion so that the guide pin 23 passes through.

The guide pin 23 is a guide member placed in the lower plate 21 to guide the up and down vibration of the upper plate 22. The guide pin 23 uses a round bar having a circular cross section and has a through hole formed in the upper plate 22. It is preferable to be inserted so that it may slide up and down.

The vibration adjusting piece 24 is a vibration adjusting member which is installed on the upper part of the guide pin 23 to adjust the vertical vibration position of the upper plate 22, and is fixed in a state of being elevated along the outer circumference of the guide pin 23. It is preferable that the fixing piece is coupled to one side of the vibration adjusting piece 24 so as to.

The buffer means is one or more buffer members installed in the space between the lower plate 21 and the upper plate 22 to cushion the vertical vibration of the movable portion 120, the first pin housing 25, the second pin The housing 26, the third pin housing 27, the first arm 28, and the second arm 29 are formed.

The first pin housing 25 is a housing member fixed to the lower surface of the upper plate 22. The first pin housing 25 is formed in a substantially rectangular cylindrical shape, and the first rubber springs 25a are inserted into the corner portions thereof. have.

The second pin housing 26 is a housing member fixed to the upper surface of the lower plate 21, and is formed in a substantially rectangular cylindrical shape, and the second rubber springs 26a are inserted into respective corner portions thereof. have.

The third pin housing 27 is a housing member connected between the first pin housing 25 and the second pin housing 26 in a link structure by a plurality of arms, and is formed in a substantially rectangular cylindrical shape and therein. The third rubber springs 27a are respectively inserted into and installed at the corner portions of the corners.

The first arm 28 is a support member linked between the first pin housing 25 and the third pin housing 27, and has a first upper hinge having a square cross section at an upper end of the first arm 28. The pin 28a is hinged to the first pin housing 25 and is supported by a plurality of first rubber springs 25a, and has a first lower hinge pin having a rectangular cross section at a lower end of the first arm 28. 28b) is hinged to the third pin housing 27 and is supported by a plurality of third rubber springs 27a.

The second arm 29 is a support member linked between the second pin housing 26 and the third pin housing 27, and has a second upper hinge having a square cross section at an upper end of the second arm 29. The pin 29a is hinged to the third pin housing 27 and is supported by a plurality of third rubber springs 27a, and a second lower hinge pin having a rectangular cross section at the bottom of the second arm 29 ( 29b) is hinged to the second pin housing 26 and is supported by a plurality of second rubber springs 26a.

Accordingly, the first pin housing 25, the second pin housing 26, and the third pin housing 27 and the facing portions of the first arm 28 and the second arm 29 are connected to each other via rubber springs. In addition, the vibration of the movable part 120 is buffered while limiting the horizontal rotation of the first arm 28 and the second arm 29.

The support part 30 is a support member coupled between the lower part of the second buffer part 20 and the upper part of the fixing part 110. The support part 30 is formed of a plurality of support blocks and the lower part and the fixing part of the second buffer part 20 ( A space between the upper portions of the 110 is supported in a fixed state.

Hereinafter, with reference to the accompanying drawings will be described in detail a third preferred embodiment of the present invention.

FIG. 10 is a block diagram showing an oscillator including a shock absorber of the continuous casting oscillator according to a third embodiment of the present invention, and FIG. 11 is provided with a shock absorber of the oscillator for a continuous casting according to a third embodiment of the present invention. 12 is a front view showing an oscillator, FIG. 12 is a plan view showing an oscillator including a shock absorber of the oscillator for continuous casting according to a third embodiment of the present invention, and FIG. 13 is for continuous casting according to a third embodiment of the present invention. It is a side view which shows an oscillator provided with the oscillator buffer.

As shown in Figs. 10 to 13, the shock absorber of the oscillator for continuous casting of the third embodiment is composed of a first shock absorbing portion 10 and a second shock absorbing portion 20, and the continuous casting for vibrating the continuous casting mold. It is a shock absorber of the continuous casting oscillator which is installed in the space between the fixed portion 110 and the upper movable portion 120 of the lower oscillator.

The first shock absorbing portion 10 of the third embodiment has the same configuration as that of the first shock absorbing portion 10 of the first embodiment, and has the same configuration, and the second shock absorbing portion 20 of the third embodiment carries out the second embodiment. Since the installation position and the structure of the 2nd shock absorbing part 20 of an example are the same, in this embodiment, description of the same structure is abbreviate | omitted, and only a different structure is demonstrated concretely.

The first buffer part 10 is an auxiliary buffer member coupled between the lower part of the second buffer part 20 and the upper part of the fixing part 110. The lower support piece 11 and the upper part as shown in FIG. It consists of a support piece 12, a holding means 13 and a support pin 14.

The lower support piece 11 is a flat plate-shaped support member installed on the upper part of the fixing part 110, and the lower support piece 11 is coupled to and fixed to the lower support part 13, thereby supporting the lower part of the touching part 13.

The upper support piece 12 is a flat plate-shaped support member provided below the second shock absorbing portion 20, and the upper portion of the holding means 13 is coupled to and fixed to support the upper portion of the holding means 13. do.

The gripping means 13 is a shock absorbing member which is installed in the vertical direction between the lower support piece 11 and the upper support piece 12 to cushion the vibration of the movable part 120, and the vibration of the movable part 120 in the vertical direction. Consists of a plurality of coil springs to cushion the.

The support pin 14 is installed in the vertical direction between the lower support piece 11 and the upper support piece 12 to prevent the left and right swings of the fingering means 13 and the buffering direction of the fingering means in the vertical direction. Support to maintain.

The second shock absorbing portion 20 is a shock absorbing member coupled between the lower portion of the movable portion 120 and the upper portion of the first shock absorbing portion 10, and as shown in FIGS. 7 to 9 of the second embodiment, the lower plate 21. ), The upper plate 22, the guide pin 23, the vibration control piece 24, the buffer means.

The lower plate 21 is a flat plate-shaped support member installed on the upper portion of the first shock absorbing portion 10. Since the lower portion of the shock absorbing means is coupled to and fixed thereto, the lower plate 21 supports the lower portion of the shock absorbing means.

The shock absorbing means is provided between the lower plate 21 and the upper plate 22 as one or more shock absorbing members for cushioning the vibration of the movable portion 120, the first pin housing 25, the second pin housing 26, It consists of the 3rd pin housing 27, the 1st arm 28, and the 2nd arm 29. As shown in FIG.

As described above, according to the present invention, any one of the first buffer portion, the second buffer portion, and the support portion is installed between the fixed portion and the movable portion, thereby oscillating the continuous casting mold. Provides the effect of double buffering vibration to improve the buffering performance.

In addition, by installing the holding means composed of a plurality of coil springs in the vertical direction as the first buffer portion and supporting it with the support pins, the distance between the second buffer portion and the fixed portion can be buffered so as to finely adjust by the touch means. Provide the effect.

In addition, by installing the guide pin and the vibration adjusting piece between the lower plate and the upper plate of the second buffer portion, it is possible to prevent the left and right swing of the buffer means and at the same time limit the vibration position of the buffer means.

In addition, by linking the plurality of pin housing and the arm to the shock absorbing means by the rubber spring, it facilitates the buffer against the vertical vibration of the movable portion, while also providing the effect of extending the durability of the shock absorbing means and maintaining long life. .

The present invention described above can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the above embodiments are merely examples in all respects and should not be interpreted limitedly.

Claims

As a shock absorber of a continuous casting oscillator provided between a lower part of a continuous casting oscillator for vibrating a continuous casting mold and an upper movable part,

The first buffer coupled to the lower portion of the movable portion to cushion by up and down stretching

Part 10; And

And a support part (30) coupled between the lower part of the first buffer part and the upper part of the fixing part.
As a shock absorber of a continuous casting oscillator provided between a lower part of a continuous casting oscillator for vibrating a continuous casting mold and an upper movable part,

A second buffer coupled to the lower portion of the movable portion and cushioned by rotation in the left and right directions

Part 20; And

And a support part (30) coupled between the lower part of the second buffer part (20) and the upper part of the fixing part.
As a shock absorber of a continuous casting oscillator provided between a lower part of a continuous casting oscillator for vibrating a continuous casting mold and an upper movable part,

A first buffer part 10 coupled to the upper part of the fixing part and configured to buffer by stretching in the vertical direction; And

And a second buffer unit 20 coupled between an upper portion of the first buffer unit 10 and a lower portion of the movable unit and configured to buffer by rotating in left and right directions.
The method according to claim 1 or 3,

The first buffer unit 10,

A lower support piece installed at the bottom;

An upper support piece spaced apart from an upper portion of the lower support piece;

Tungsten means provided between the lower support piece and the upper support piece to cushion vibration; And

And a support pin installed between the lower support piece and the upper support piece to prevent rocking of the fingering means.
The method of claim 4, wherein

The gripping means is a shock absorber of the oscillator for continuous casting, characterized in that consisting of a plurality of coil springs.
The method of claim 2 or 3,

The second buffer unit 20,

A lower plate installed at the bottom;

An upper plate spaced apart from each other to vibrate up and down on an upper portion of the lower plate;

A guide pin placed in the lower plate to guide vertical vibration of the upper plate;

A vibration adjusting piece installed on an upper portion of the guide pin to adjust a vertical vibration position of the upper plate; And

And at least one buffer means installed between the lower plate and the upper plate to cushion vibrations.
The method of claim 6,

The buffer means,

A first pin housing fixed to a lower surface of the upper plate;

A second pin housing fixed to an upper surface of the lower plate;

A third pin housing connecting the first pin housing and the second pin housing in a link structure by a plurality of arms;

The first pin housing to the third pin housing and the facing portion of the arm is connected via a rubber spring to cushion the vibration while limiting the rotation of the arm, characterized in that the shock absorber of the continuous casting.