CN212398059U - Limiting device for guide section of continuous casting machine - Google Patents

Abstract

The utility model discloses a stop device for direction section of conticaster, which comprises a bracket, the guide roll, spacing roller, two rotate the piece, connecting plate and counterweight, the guide roll sets up along the fore-and-aft direction, and rotatable setting is on the support, spacing roller sets up in the guide roll top along the fore-and-aft direction, form the space that supplies the casting blank to pass between spacing roller and the guide roll, two rotate the piece and set up both sides around spacing roller respectively, the one end and the rotate bracket connection of piece, the both ends of spacing roller rotate the middle part of one side that is close to each other with two respectively and are connected, the connecting plate rotates between two pieces along the fore-and-aft direction setting, its both ends are connected with the other end of two rotation pieces respectively, the counterweight sets up in the connecting plate top, and be connected with connecting. The utility model provides a stop device for direction section of conticaster is applicable to the casting blank of the different specifications of production, can effectively prevent the emergence of bullet blank phenomenon.

Description

Limiting device for guide section of continuous casting machine

Technical Field

The utility model relates to a continuous casting auxiliary assembly field. More specifically, the utility model relates to a stop device for direction section of conticaster.

Background

The guide section is composed of main components such as a guide roller, a limiting roller, a support and the like, and is an essential component in the production process of the continuous casting machine. It has the following functions: when pouring is prepared, the dummy bar can be guided to smoothly enter the crystallizer; when pouring, can play the supporting role to the casting blank. The guide section limiting device is used for preventing the quality of a steel billet from being influenced by severe shaking (commonly called as spring billet) generated in the continuous casting blank drawing process and even causing steel leakage accidents. Because the working environment of the guide section limiting roller is very severe, high temperature and moist, and because of the limitation of the site positions of various steel plants, workers cannot enter maintenance, maintenance or replacement in the production process. Therefore, the design of the novel limiting device for the square and rectangular billet guide section plays an important role in normal operation of equipment and product quality. The current guiding section casting blank limiting modes in the industry mainly comprise two modes:

one is the traditional billet limiting mode of fixing the limiting roller, and the guide roller and the limiting roller of the billet limiting mode are fixed together with the bracket. When the casting blank of multiple specification is produced to the conticaster, fixed spacing roller can only play the support spacing to the casting blank of great specification, prevents to play the effect that the base damaged the shower. When the continuous casting machine produces casting blanks with smaller specifications, the fixed limiting roller does not play any role in the production process of the casting blanks. However, because the rigidity of the small-sized casting blank is poor, under the action of a vibration device and a withdrawal and straightening machine of a continuous casting machine, the probability and the amplitude of blank ejection of the casting blank are higher, the probability that the quality of the casting blank is affected and a spraying device is damaged is higher, and therefore a bullet-proof blank limiting device is needed more: the effective section is single.

The other type of the steel billet limiting mode is a hydraulically driven limiting roller, a guide roller of the steel billet limiting mode is fixed, and the limiting roller can be driven to adjust the position through a hydraulic cylinder according to different produced casting blanks. Under the billet limiting mode, the limiting roller can only be arranged outside the two cooling chambers and is far away from the spray pipe, the bullet-proof billet has relatively poor effect, and the equipment failure rate is high. The hydraulic cylinder mounting platform adopting the billet limiting mode seriously influences equipment for hoisting secondary cooling electromagnetic stirring, a fan-shaped section, a guide roller and the like, and has higher hoisting cost.

With the rapid development of modern science and technology, in order to adapt to the current changing market demand, most of the domestic newly-built continuous casting machines can be required to produce casting blanks with various specifications. The blank ejection phenomenon of the continuous casting machine is always a problem which is difficult to thoroughly solve in the development process of the continuous casting technology, and the blank ejection phenomenon seriously influences the normal production of the continuous casting machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stop device for direction section of conticaster is applicable to the casting blank of the different specifications of production, can effectively prevent the emergence of bullet blank phenomenon.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a limiting device for a guide section of a continuous casting machine comprises a bracket, a guide roller, a limiting roller, two rotating parts, a connecting plate and a counterweight part, wherein the guide roller is arranged along the front and back direction, and is rotatably arranged on the bracket, the limiting roller is arranged above the guide roller along the front-back direction, a space for a casting blank to pass through is formed between the limiting roller and the guide roller, the two rotating parts are respectively arranged on the front side and the rear side of the limiting roller, one end of the rotating piece is rotationally connected with the bracket, two ends of the limiting roller are respectively rotationally connected with the middle part of one side of the two rotating pieces close to each other, the connecting plate is arranged between the two rotating pieces along the front-back direction, the two ends of the rotary piece are respectively connected with the other ends of the rotary pieces, and the counterweight piece is arranged above the connecting plate and detachably connected with the connecting plate.

Preferably, in the limiting device for the guide section of the continuous casting machine, a bearing seat is arranged in the middle of one side, close to each other, of each of the two rotating parts, and two ends of the limiting roller are rotatably connected with the two bearing seats respectively.

Preferably, in the limiting device for the guide section of the continuous casting machine, a box body with an upper end opening is arranged at the upper end of the connecting plate, a cover body capable of opening or closing the box body is arranged at the upper end opening of the box body, and the counterweight is arranged in the box body.

Preferably, in the limiting device for the guide section of the continuous casting machine, the support is further provided with an upper limiting assembly and a lower limiting assembly, when the two rotating pieces drive the limiting roller to rotate upwards to the highest point, the limiting roller is abutted against the upper limiting assembly, and when the two rotating pieces drive the limiting roller to rotate downwards to the lowest point, the limiting roller is abutted against the lower limiting assembly.

Preferably, in the limiting device for the guide section of the continuous casting machine, the upper limiting assembly comprises two upper limiting rods arranged in the front-back direction, and both the two upper limiting rods are connected with the bracket.

The utility model has the advantages that:

1) the unpowered driving mode is adopted, and the unpowered driving device has the advantages of low investment cost, low equipment failure rate, easiness in installation and maintenance and the like;

2) the method can be suitable for producing casting blanks with different specifications, and can effectively prevent the blank ejection phenomenon;

additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of the limiting device of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

FIG. 1 is a limiting device for a guiding section of a continuous casting machine, which comprises a support 1, a guiding roller 2, a limiting roller 3, two rotating members 4, a connecting plate 5 and a weight member 6, wherein the guiding roller 2 is arranged along the front-back direction and is rotatably arranged on the support 1, the limiting roller 3 is arranged above the guiding roller 2 along the front-back direction, a space for a casting blank 7 to pass is formed between the limiting roller 3 and the guiding roller 2, the two rotating members 4 are respectively arranged on the front side and the rear side of the limiting roller 3, one end of each rotating member 4 is rotatably connected with the support 1, two ends of the limiting roller 3 are respectively rotatably connected with the middle part of one side where the two rotating members 4 are close to each other, the connecting plate 5 is arranged between the two rotating members 4 along the front-back direction, and two ends of each rotating member 4 are respectively connected with the other end of each rotating member, the weight piece 6 is arranged above the connecting plate 5 and is detachably connected with the connecting plate 5.

In the above embodiment, when no casting blank 7 passes through, the limiting roller 3 rotates downwards around one end of the two rotating members 4, namely, is close to the guide roller 2, under the action of the gravity of the limiting roller 3 and the action force of the rotating members 4, the connecting plate 5 and the counterweight 6 on the limiting roller, when the casting blank 7 passes through the space between the limiting roller 3 and the guide roller 2, the two rotating members 4 are lifted upwards through other machines, namely, the limiting roller 3 is far away from the guide roller 2, the front part of the casting blank 7 passes through the space between the limiting roller 3 and the guide roller 2, then the external force of the machine is removed, the limiting roller 3 presses the upper end of the counterweight 7 under the action of the gravity of the limiting roller 3 and the action force of the rotating members 4, the connecting plate 5 and the counterweight 6 on the limiting roller, the lower end of the casting blank 7 is guided by the guide roller 2 below, the upper limiting roller 3 presses the casting blank 7, and the phenomenon that the quality of the steel billet is influenced by the violent shaking generated in the process of drawing the casting blank 7 is prevented.

Preferably, as another embodiment of the present invention, the upper end of the connecting plate 5 is provided with a box body with an upper end opening, the upper end opening of the box body is provided with a cover body capable of opening or closing the box body, and the weight member 6 is arranged in the box body.

In the above embodiment, when producing casting blank 7 of different specifications, spacing roller 3 can reach different positions around the rotatory different angles of two one ends that rotate 4, through setting up the box, the box adopts prior art, not drawn in the drawing, and set up counterweight 6 in the box, thereby can be according to the specification of casting blank 7, its weight that adjusts the counter weight promptly adjusts the weight of counter weight, thereby when spacing roller 3 position is different, guarantee its pressure to the upper end of casting blank 7, guarantee that casting blank 7 keeps stable in the throwing process.

Preferably, as another embodiment of the present invention, the bracket 1 is further provided with an upper limit component and a lower limit component, when the two rotating members 4 drive the limit roller 3 to rotate upward to the highest point, the limit roller 3 collides with the upper limit component, and when the two rotating members 4 drive the limit roller 3 to rotate downward to the lowest point, the limit roller 3 collides with the lower limit component; specifically, the upper limiting component comprises two upper limiting rods 8 arranged along the front-back direction, and the two upper limiting rods 8 are connected with the bracket 1; the lower limit component can adopt the same structure as the upper limit component.

In this embodiment, the bracket 1 is further provided with an upper limiting component and a lower limiting component, two limiting positions of the limiting roller 3 are limited when the limiting roller rotates around one end of the two rotating pieces 4, when the two rotating pieces 4 drive the limiting roller 3 to rotate upwards to the highest point, namely, the position M, the limiting roller 3 is abutted against the upper limiting component, and when the two rotating pieces 4 drive the limiting roller 3 to rotate downwards to the lowest point, namely, the position N, the limiting roller 3 is abutted against the lower limiting component, so that the maximum and minimum specifications of the applicable casting blank 7 can be limited; in addition, the lower limit component can also ensure that a gap exists between the limit roller 3 and the guide roller 2, the head of the casting blank 7 can stretch into the gap, and the limit roller 3 is jacked up through the casting blank 7, so that other machines are omitted for lifting the limit roller 3.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for the invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and embodiments shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (5)

1. The limiting device for the guide section of the continuous casting machine is characterized by comprising a support (1), a guide roller (2), a limiting roller (3), two rotating pieces (4), a connecting plate (5) and a counterweight (6), wherein the guide roller (2) is arranged along the front and back direction and is rotatably arranged on the support (1), the limiting roller (3) is arranged above the guide roller (2) along the front and back direction, a space for a casting blank (7) to pass is formed between the limiting roller (3) and the guide roller (2), the two rotating pieces (4) are respectively arranged at the front side and the back side of the limiting roller (3), one end of each rotating piece (4) is rotatably connected with the support (1), the two ends of the limiting roller (3) are respectively rotatably connected with the middle parts of one side, close to each other, of the rotating pieces (4), the connecting plate (5) is arranged between the two rotating pieces (4) along the front and back direction, the two ends of the connecting rod are respectively connected with the other ends of the rotating pieces (4), and the counterweight piece (6) is arranged above the connecting plate (5) and detachably connected with the connecting plate (5).

2. The spacing device for the guide segment of the continuous casting machine according to claim 1, characterized in that the middle of the side where the two rotating members (4) are close to each other is provided with a bearing seat, and the two ends of the spacing roller (3) are respectively and rotatably connected with the two bearing seats.

3. A stop device for a guide segment of a continuous casting machine according to claim 1, characterized in that the upper end of the connecting plate (5) is provided with a box body with an upper end opening, the upper end opening of the box body is provided with a cover body capable of opening or closing the box body, and the counterweight member (6) is arranged in the box body.

4. A stop device for a guide segment of a continuous casting machine according to any one of claims 1 to 3, wherein an upper stop assembly and a lower stop assembly are further provided on the support frame (1), the stop roller (3) is abutted against the upper stop assembly when the two rotating members (4) drive the stop roller (3) to rotate upward to the highest point, and the stop roller (3) is abutted against the lower stop assembly when the two rotating members (4) drive the stop roller (3) to rotate downward to the lowest point.

5. A stop device for the guide section of a continuous casting machine according to claim 4, characterized in that the upper stop assembly comprises two upper stop rods (8) arranged in the front-rear direction, both upper stop rods (8) being connected to the support (1).

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