CN215279863U

CN215279863U - Quick-change tool for pouring box bottom nozzle

Info

Publication number: CN215279863U
Application number: CN202120398724.1U
Authority: CN
Inventors: 严明; 郝飞翔
Original assignee: Yangchun New Iron and Steel Co Ltd
Current assignee: Yangchun New Iron and Steel Co Ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-12-24
Anticipated expiration: 2031-02-22

Abstract

The utility model discloses a mouth of a river quick change instrument under centre package, include: the sleeve is used for sleeving the drainage port; the sleeve is arranged at the first end of the rod body; the connecting part is arranged at the first end of the rod body, is positioned between the sleeve and the first end of the rod body, and is used for connecting the sleeve and the rod body; wherein: the sleeve is rotatably connected with the connecting part, so that the sleeve can rotate by taking one diameter line as an axis. The utility model discloses a mouth of a river quick change instrument under centre package, but the body of rod rotates relatively through the sleeve, after the mouth of a river under sheatheeing in, have convenient mouth of a river and the butt joint of the mouth of a river of going up, convenient mouth of a river and crystallizer liquid level center centering and conveniently place the advantage on ground down.

Description

Quick-change tool for pouring box bottom nozzle

Technical Field

The utility model relates to a steel continuous casting auxiliary assembly technical field especially relates to a mouth of a river quick change instrument under centre package.

Background

In order to improve the quality of continuous casting billets, protective casting is needed in continuous casting production, wherein a lower nozzle is arranged between an upper nozzle of a tundish and a crystallizer and is required to be convenient to install, fix and offline, so that a simple device needs to be manufactured for operation.

The original method is to use a tool with a steel rod and a steel ring for installation, fixation and off-line. And sleeving the baked lower water gap on the upper water gap of the tundish by using a round tool with a rod, so that the upper water gap of the tundish is connected with the crystallizer. This approach has drawbacks and deficiencies:

(1) a steel ring with a rod is not flexible enough, and a fixed water outlet cannot be centered and adjusted with the liquid level center of the crystallizer.

(2) The steel flow enters the crystallizer, and the temperature difference of the surface of the crystallizer is large due to the misalignment of the steel flow, so that the thickness of a blank shell of the crystallizer is different, and the leakage accidents of a continuous casting machine are increased.

(3) A steel ring with a rod covers a water outlet, and the steel rod is inconvenient to place if the steel ring needs to be placed on the ground before replacement.

Therefore, the existing tundish nozzle quick-change tool needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mouth of a river quick change instrument under centre package, it is rotatable through the sleeve, convenient nimble regulation down mouth of a river and crystallizer liquid level center centering to the mouth of a river is not centered with crystallizer liquid level center under inconvenient and the butt joint after the lower mouth of a river among the solution prior art, the molten steel cooling that leads to is inhomogeneous and down the change of mouth of a river change with fixed inconvenient technical problem.

In order to solve the technical problem, the utility model provides a mouth of a river quick change instrument under centre package, include:

the sleeve is used for sleeving the drainage port;

the sleeve is arranged at the first end of the rod body;

the connecting part is arranged at the first end of the rod body, is positioned between the sleeve and the first end of the rod body, and is used for connecting the sleeve and the rod body; wherein:

the sleeve is rotatably connected with the connecting part, so that the sleeve can rotate by taking one diameter line as an axis.

Preferably, two connecting positions are arranged between the connecting part and the sleeve, and the two connecting positions are symmetrically distributed at two ends of one diameter line of the sleeve.

Preferably, the rod body is positioned perpendicular to the rotation axis of the sleeve and coincides with the extension line of one of the diameter lines of the sleeve.

Preferably, a gap is formed between the first end of the rod body and the sleeve, and the gap provides a space for the end of the lower nozzle to pass through the first end of the rod body when the lower nozzle rotates by an angle.

Preferably, the sleeve is connected with the connecting part through a rotating pin.

Preferably, the rotating pin is fixedly connected with the sleeve and rotatably connected with the connecting part, and a limiting component is arranged between at least one rotating pin and the connecting part and is assembled to fix the sleeve after the sleeve rotates.

Preferably, spacing subassembly includes spacing groove, stopper and spacing spring, the spacing groove sets up to be that central symmetry sets up the rotating pin surface the stopper telescopically sets up on connecting portion, makes the stopper can insert the spacing inslot in its dead ahead when stretching out, the tail end at the stopper and on the connecting portion, for the stopper inserts the spacing groove and provides elasticity respectively at the both ends of spacing spring.

Preferably, the second end of the body of rod with be equipped with wire rope between the spacing subassembly, wherein, wire rope's front end is fixed the tail end of stopper, through be in equidistant a plurality of cable ties that set up of body of rod and connecting portion, wire rope slidable passes in proper order a plurality of cable ties.

Preferably, the second end of the rod body extends towards the lateral direction to form at least one handle part, the tail end of the steel wire rope is provided with a fixing part capable of being fixed on the handle part, and when the steel wire rope is pulled to fix the fixing part on the handle part, the limiting block is separated from the rotating pin.

Preferably, the outer end section of the rotating pin corresponding to the limiting part extends to the outside of the connecting part, and the limiting component is arranged on the outer side of the connecting part.

The utility model provides a mouth of a river quick change instrument under centre package can rotate on connecting portion through the sleeve, can adjust mouth of a river and crystallizer liquid level center centering under in a flexible way, prevents that the steel stream from running the limit, makes the cooling of crystallizer molten steel even, improves the shell thickness homogeneity that the crystallizer does, reduces the conticaster and draws hourglass accident, simultaneously, the change and the fixed of mouth of a river under the convenience, simultaneously, will descend the mouth of a river to be located same sharp state with the body of rod, more conveniently place subaerial.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a quick-change tool for a nozzle of a tundish of the present invention.

Fig. 2 is a schematic structural view of a second embodiment of a quick-change tool for a tundish nozzle of the present invention, wherein the second embodiment has a single limiting component.

Fig. 3 is an enlarged view of a portion a in fig. 2 of the quick-change tool for a nozzle of a tundish of the present invention.

Fig. 4 is an enlarged view of the part B in fig. 2 of the quick-change tool for the nozzle of the tundish of the present invention.

Fig. 5 is a schematic structural view of the second embodiment of the quick-change tool for a tundish nozzle of the present invention, wherein the two limiting assemblies are provided.

The reference numbers illustrate:

1. a sleeve; 2. a rod body; 3. a connecting portion; 4. a rotation pin; 5. a limiting component; 6. a wire rope; 7. a rope fastener; 8. a handle portion; 9. a fixed part;

51. a limiting groove; 52. a limiting block; 53. a limiting spring; 54. and (4) a sliding sleeve.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, a first embodiment of the present invention provides a quick-change tool for a pouring box nozzle, including:

the sleeve 1 is used for sheathing the sewer opening, in the specific implementation process, the sleeve 1 can be set into a circular steel ring, and in the operation process, the sleeve 1 is sheathed on the baked sewer opening;

the device comprises a rod body 2, a sleeve 1 is arranged at a first end of the rod body 2, after a lower water gap is sleeved on the sleeve 1, the rod body 2 is taken up, the lower water gap is moved to the position of an upper water gap of a tundish and is aligned with the upper water gap;

the connecting part 3 is arranged at the first end of the rod body 2, is positioned between the sleeve 1 and the first end of the rod body 2, and is used for connecting the sleeve 1 and the rod body 2, and in the specific implementation process, the connecting part 3 can be integrally formed with the rod body 2 or can be fixed on the rod body 2 as an independent part; wherein:

the sleeve 1 is rotatably connected with the connecting part 3, so that the sleeve 1 can rotate by taking one of the diameter lines as an axis, the rotatable process of the sleeve 1 is utilized, the butt joint of the upper nozzle and the lower nozzle is facilitated, and the lower nozzle is rotatable and is convenient to butt joint with the upper nozzle.

By adopting the scheme, the sleeve 1 can rotate relative to the connecting part 3 in the process of sleeving the baked lower nozzle or butting the lower nozzle and the upper nozzle, so that the butt joint operation of the lower nozzle and the upper nozzle is facilitated, and the replacement and fixation of the lower nozzle are facilitated; simultaneously, it is rotatable to utilize the end of a river, adjusts end of a river and crystallizer liquid level center centering to and after sleeve 1 entangles end of a river, make end of a river be the state that is located the collinear with the body of rod 2, conveniently place subaerial, especially, after adopting above-mentioned scheme, end of a river and crystallizer liquid level center centering back can make the steel stream centering get into the crystallizer, make crystallizer surface cooling temperature even, the crystallizer shell thickness that does not is even, reduces conticaster and draws hourglass accident.

Wherein:

in an embodiment, two connecting positions are arranged between the connecting part 3 and the sleeve 1, and the two connecting positions are symmetrically distributed at two ends of a diameter line of the sleeve 1, in this state, the connecting part 3 can be set into a semi-ring shape, and two ends of the connecting part 3 respectively correspond to the two connecting positions, namely, two ends of the connecting part 3 are respectively rotatably connected with two sides of the surface of the sleeve 1, of course, the connecting part can also be in other shapes, the rod body 2 is positioned at a position perpendicular to a rotating axis of the sleeve 1 and is superposed with an extension line of the diameter line of the sleeve 1, so that the rod body 2 is positioned at the middle position of the sleeve 1 in the diameter direction, in the process of replacing and butting operation of the drainage port, when the rod body 2 exerts force, the rod body 2 synchronously transmits the acting force to the drainage port from two sides of the drainage port, so that two sides of the liquid surface of the drainage port are uniformly stressed, the replacement and the fixation of the drainage port are more convenient, and simultaneously, the centering process of the drainage port and the central of the crystallizer and the state maintenance after centering are facilitated, especially after the lower nozzle is fixed with the upper nozzle, the rod body 2 is hooked by using an iron hook welded at the edge of the middle wrapping edge, and a matched balance weight is hung on the second end of the rod body 2 by using a lever principle, so that in the process of closely contacting the upper nozzle and the lower nozzle of a tundish, the two sides of the lower nozzle are uniformly stressed, the centering state of the lower nozzle with the center of the liquid level of a crystallizer is favorably and stably kept, a gap is formed between the first end of the rod body 2 and the sleeve 1, when the lower nozzle rotates for 360 degrees, the end part of the gap provides a space through the first end of the rod body 2, and the lower nozzle can freely rotate for 360 degrees, so that the adaptability of the lower nozzle is improved.

The sleeve 1 is connected with the connecting part 3 through a rotating pin 4.

Referring to fig. 2 to 5, in the second embodiment, the rotation pin 4 is fixedly connected with the sleeve 1 and rotatably connected with the connection portion 3, a limiting component 5 is disposed between at least one rotation pin 4 and the connection portion 3, and the limiting component 5 is assembled to fix the sleeve 1 after rotating, wherein:

spacing subassembly 5 includes spacing groove 51, stopper 52 and spacing spring 53, and spacing groove 51 sets up to be central symmetry and sets up on 4 surfaces of rotating pin, stopper 52 telescopically sets up on connecting portion 3 for stopper 52 can insert the spacing groove 51 in its dead ahead when stretching out, and the both ends of spacing spring 53 are fixed respectively on the tail end of stopper 52 and connecting portion 3, insert spacing groove 51 for stopper 52 and provide elasticity.

A steel wire rope 6 is arranged between the second end of the rod body 2 and the limiting component 5, wherein the front end of the steel wire rope 6 is fixed at the tail end of the limiting block 52, a plurality of rope buckles 7 are arranged on the rod body 2 and the connecting part 3 at equal intervals, the steel wire rope 6 passes through the rope buckles 7 in sequence in a sliding way, the steel wire rope 6 is pulled at the tail end of the steel wire rope 6, the limiting block 52 can move backwards, leaves the limiting groove 51 into which the front end of the limiting block is inserted, and compresses the limiting spring 53, after the steel wire rope 6 is loosened, the limiting spring 53 can push the limiting block 52 to be inserted into the limiting groove 51 right in front of the limiting block in the recovery process, concretely, the front end of the limiting block 52 is in an isosceles triangle structure, the middle part is in a cuboid shape, the size of the tail end of the limiting block is larger than that of the middle part, a sliding sleeve 54 is formed on the connecting part 3, the sliding sleeve 54 is provided with a through hole matched with the middle part of the limiting block 52, the middle part of the limiting block 52 penetrates through hole, the limiting spring 53 is provided with a limiting spring 53 seat, the limiting spring 53 seat is fixed on the connecting part 3, a through hole is arranged on the limiting spring 53 seat, and the front end of the steel wire rope 6 penetrates through the through hole and the inner cavity of the limiting spring 53 is fixed on the tail end of the limiting block 52.

The body of rod 2 second end forms a handle portion 8 at least through extending towards the side direction, wire rope 6's tail end is equipped with one and can fixes fixed part 9 on handle portion 8, when pulling wire rope 6 fixes fixed part 9 on handle portion 8, stopper 52 and rotating pin 4 separation, the in-process of concrete implementation, fixed part 9 can be the solid fixed ring of fixing at wire rope 6 tail end, also can be wire rope 6 self at the annular structure that the tail end formed, only need guarantee solid fixed ring or annular structure can overlap and establish on handle portion 8 can.

The outer end section of the rotating pin 4 corresponding to the limiting part extends out of the connecting part 3, and the limiting component 5 is arranged on the outer side of the connecting part 3.

After adopting above-mentioned scheme, mouth of a river and the butt joint in-process of the mouth of a river under, the state of mouth of a river under usable spacing subassembly 5 is fixed, place at the butt joint in-process, because the nimble rotation of mouth of a river under, lead to inconvenient power, and simultaneously, when placing ground, utilize spacing subassembly 5 to be fixed in the state that the body of rod 2 lies in the same straight line with the mouth of a river under, make and place more stably, and simultaneously, under the mouth of a river docks with the mouth of a river under and with crystallizer liquid level center centering state, hang up body of rod 2 after the counter weight, treat the mouth of a river after stable, utilize spacing subassembly 5 to fix the relative state between mouth of a river and the body of rod 2, improve the stability after the butt joint.

The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. The utility model provides a mouth of a river quick change instrument under pouring basket which characterized in that includes:

the sleeve is used for sleeving the drainage port;

the sleeve is arranged at the first end of the rod body;

2. The quick-change tool for the drain nozzle of the tundish according to claim 1, wherein two connecting positions are arranged between the connecting part and the sleeve, and the two connecting positions are symmetrically arranged at two ends of one diameter line of the sleeve.

3. A quick-change tool for a nozzle of a tundish according to claim 2, wherein the rod is located perpendicular to the axis of rotation of the sleeve and coincides with the extension of a diameter line of the sleeve.

4. A quick-change tool for a tundish nozzle according to claim 3, wherein the first end of the rod and the sleeve define a gap therebetween, the gap providing space for the end of the nozzle to pass the first end of the rod when the nozzle is rotated.

5. A quick change tool for a tundish nozzle according to any one of claims 1 to 4, wherein the sleeve and the coupling are connected by a rotating pin.

6. A quick-change tool for a tundish nozzle according to claim 5, wherein the rotating pins are fixedly connected to the sleeve and rotatably connected to the connecting portion, and a stop assembly is provided between at least one of the rotating pins and the connecting portion, the stop assembly being arranged to fix the sleeve after it has been rotated.

7. The quick-change tool for the drain nozzle of the tundish according to claim 6, wherein the limiting assembly comprises a limiting groove, a limiting block and a limiting spring, the limiting groove is arranged on the surface of the rotating pin in a central symmetry manner, the limiting block is telescopically arranged on the connecting portion, so that the limiting block can be inserted into the limiting groove right in front of the limiting groove when extending out, and two ends of the limiting spring are respectively fixed on the tail end of the limiting block and the connecting portion to provide elasticity for the limiting block to be inserted into the limiting groove.

8. The quick-change tool for the drain nozzle of the tundish according to claim 7, wherein a steel wire rope is arranged between the second end of the rod body and the limiting component, wherein the front end of the steel wire rope is fixed at the tail end of the limiting component, and the steel wire rope passes through a plurality of rope buckles in sequence in a sliding manner by arranging the rope buckles at equal intervals on the rod body and the connecting part.

9. The quick-change tool for a tundish nozzle according to claim 8, wherein the second end of the rod is formed with at least one handle portion extending laterally, the wire rope is provided at its rear end with a fixing portion fixable to the handle portion, and the stopper is disengaged from the pivot pin when the wire rope is pulled to fix the fixing portion to the handle portion.

10. A quick-change tool for a tundish nozzle according to claim 9, wherein the outer end section of the rotating pin corresponding to the limiting portion extends out of the connecting portion, and the limiting assembly is arranged outside the connecting portion.