CN212495381U

CN212495381U - Quick-change drain nozzle of continuous casting tundish

Info

Publication number: CN212495381U
Application number: CN202021248393.5U
Authority: CN
Inventors: 毕立彩; 郭秀平; 张坤; 孟东生; 兰林港
Original assignee: Guide Wuhan Science And Engineering Co ltd
Current assignee: Guide Wuhan Science And Engineering Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-02-09
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a mouth of a river under continuous casting pans quick change belongs to casting machinery technical field to the mouth of a river uses the stopper stick of fusiformis to control under solving current pans, can not realize the problem of more accurate control to the stopper stick. Comprises a group of connecting rods which are connected in a sliding groove at the top of the bracket in a sliding way; the side walls of the two ends of the bracket are fixedly connected with a group of driving devices; the driving device is rotationally connected with a group of step cams; a group of intermediate tank bodies is fixedly connected to the support bottom plate; and a group of stopper rods are slidably connected in the water outlet of the intermediate tank body. The stopper rod head is changed into a multilayer structure, the shielding area of the stopper rod head is reduced layer by layer from top to bottom, the flow of the water outlet of the tundish is controlled by raising the stopper rod head layer by layer, and the flow of the water outlet can be controlled more accurately; through ladder cam rotation control connecting rod height, flow control is more accurate, and drive arrangement direct drive structure is simpler.

Description

Quick-change drain nozzle of continuous casting tundish

Technical Field

The utility model belongs to the technical field of casting machinery, more specifically say, mouth of a river under in particular to continuous casting tundish quick change.

Background

The tundish is a continuous casting and rolling device which is used for receiving molten steel from a steel containing barrel and distributing the molten steel to a crystallizer of each flow, has the functions of pressure stabilization, storage and tundish metallurgy, improves and controls the quality of the molten steel in the continuous casting tundish, and is a key ring for ensuring to obtain excellent billets in the production process from steel smelting and refining to continuous casting billet production; molten steel is poured into the intermediate tank by the steel containing barrel, the height of the shuttle-shaped stopper rod is controlled by the stretching of the oil cylinder, and the water outlet is opened or plugged by the stopper rod, so that the progress of starting and pausing of continuous casting is realized.

Based on the above, the nozzle generally uses the fusiform stopper rod to control under the current pans quick change, and the delivery port can be opened or closed in the lifting and the decline of fusiform stopper rod, only realizes two actions of delivery port switch, can't accomplish more accurate control, need change the flow of delivery port when needing the steel sheet of continuous casting different thickness or width, and it is more troublesome to change delivery port or stopper rod control flow, and work efficiency ratio is lower.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a quick-change drain opening of a continuous casting tundish is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a mouth of a river under continuous casting pans quick change to the mouth of a river generally uses the stopper stick of fusiformis to control under solving current pans quick change, the delivery port can be opened or closed with descending to the lifting of fusiformis stopper stick, only realize two actions of delivery port switch, can't accomplish more accurate control, need change the flow of delivery port when needing the steel sheet of different thickness of continuous casting or width, it is more troublesome to change delivery port or stopper stick control flow, the problem that work efficiency is lower.

The utility model discloses the purpose and the efficiency of mouth of a river under continuous casting tundish quick change are reached by following specific technological means:

the quick-change drain nozzle of the continuous casting tundish comprises a bracket; a group of connecting rods are connected in the sliding grooves in the tops of the brackets in a sliding manner; the side walls of the two ends of the bracket are fixedly connected with a group of driving devices; a driving shaft of the driving device is rotatably connected with a group of stepped cams, and a driving gear on the left side of the driving device is meshed with a driven gear on the right side of the stepped cams to form a gear transmission mechanism; a group of intermediate tank bodies is fixedly connected to the support bottom plate; and a group of stopper rods are connected in the water outlet of the intermediate tank body in a sliding manner.

Furthermore, the intermediate tank body also comprises a water outlet, the intermediate tank body is fixedly connected to the support, the intermediate tank body is arranged at the bottom of the steel containing barrel, and two groups of barrel-shaped water outlets are fixedly connected to the bottom of the intermediate tank body.

Further, the connecting rod is still including the slider, two sets of sliders of fixedly connected with on the xarm of connecting rod, and the support is still including the spout, and the support bottom is dull and stereotyped to support whole middle tank structure, and the top of the elevated at support both ends respectively is provided with two sets of spouts, and sliding connection has a set of slider in the spout.

Further, drive arrangement is still including drive gear, and drive arrangement fixed connection is on the overhead lateral wall in support both ends, a set of drive gear of fixedly connected with in drive arrangement's the drive shaft, and the ladder cam is still including driven gear, a set of driven gear of ladder cam one side fixedly connected with, and driven gear and drive gear meshing constitute gear drive.

Further, the connecting rod is still including the spring, and connecting rod top fixedly connected with a set of spring, through spring elastic connection between connecting rod top and the support top, the ladder cam rotates the inside of connecting at the support both ends, and the ladder cam is the cam of four layers of step-like, and the ladder cam meets with the connecting rod and constitutes cam drive mechanism.

Further, the stopper rod is still including stopper rod head, stopper rod top fixed connection on the connecting rod, and stopper rod bottom fixedly connected with a set of stopper rod head, stopper rod head are provided with the ring stopper of the different apertures in four layers, and the superiors laminate completely sealedly with the delivery port, and the second floor increases to the ring stopper opening successive layer on fourth layer, stopper rod head sliding connection in the delivery port.

Compared with the prior art, the utility model discloses following beneficial effect has:

the stopper rod head end is improved, the stopper rod head is changed into a multilayer structure, the shielding area of the stopper rod head is reduced layer by layer from top to bottom, the stopper rod head is lifted layer by layer to control the flow of the water outlet of the tundish, on the basis that the conventional stopper rod can be quickly opened and closed, the multilayer stopper rod head can more accurately control the flow of the water outlet, the control is simpler, the time for adjusting the flow can be greatly shortened, and the working efficiency is greatly improved; use drive arrangement to drive the ladder cam and rotate, rotate the control connecting rod through the ladder cam and make the ring of the stopper of excellent co-altitude not be connected with the delivery port, flow control is more accurate, just can the direct drive structure simpler through drive arrangement.

Drawings

Fig. 1 is a schematic diagram of the main body axial structure of the present invention.

Fig. 2 is a schematic diagram of the main body axial cross-section structure of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic view of the shaft side structure of the bracket shaft side connecting rod of the present invention.

Fig. 5 is a schematic side view of the stopper rod of the present invention.

Fig. 6 is a schematic diagram of the driving device of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a stopper rod; 101. a stopper rod head; 2. a connecting rod; 201. a slider; 202. a spring; 3. a step cam; 301. a driven gear; 4. a drive device; 401. a drive gear; 5. a middle tank body; 501. a water outlet; 6. a support; 601. a chute.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the utility model provides a quick-change drain nozzle of a continuous casting tundish, which comprises a bracket 6; a group of connecting rods 2 are connected in the sliding grooves 601 at the top of the bracket 6 in a sliding manner; the side walls of two ends of the bracket 6 are fixedly connected with a group of driving devices 4; a group of stepped cams 3 are rotatably connected to a driving shaft of the driving device 4, and a driving gear 401 at the left side of the driving device 4 is meshed with a driven gear 301 at the right side of the stepped cams 3 to form a gear transmission mechanism; a group of intermediate tank bodies 5 are fixedly connected to the bottom plate of the bracket 6; a group of stopper rods 1 are respectively connected in the water outlet 501 of the intermediate tank body 5 in a sliding way.

The tundish 5 further comprises a water outlet 501, the tundish 5 is fixedly connected to the support 6, the tundish 5 is arranged at the bottom of the steel ladle, two groups of barrel-shaped water outlets 501 are fixedly connected to the bottom of the tundish 5, when the tundish is used, poured molten steel is contained at the bottom of the steel ladle through the tundish 5, and the water outlets 501 rapidly discharge the molten steel through holes formed in the bottom of the support 6 for continuous casting in subsequent steps.

Wherein, connecting rod 2 is still including slider 201, two sets of slider 201 of fixedly connected with on the xarm of connecting rod 2, support 6 is still including

spout

601, 6 dull and stereotyped support whole tundish body 5 structures in support bottom, the overhead top in support 6 both ends respectively is provided with two sets of spouts 601, sliding connection has a set of slider 201 in spout 601, when using, to settle support 6 of tundish body 5 and set up the bottom at the flourishing steel bucket of conticaster, realize continuous production, the spout 601 of support 6 is mutually perpendicular, reciprocate in spout 601 through slider 201, make connecting rod 2 can slide in spout 601 in parallel.

Wherein, drive arrangement 4 is still including drive gear 401, drive arrangement 4 fixed connection is on the overhead lateral wall in 6 both ends of support, a set of drive gear 401 of fixedly connected with in drive shaft of drive arrangement 4, when using, rotate through drive arrangement 4 and drive gear 401 under synchronous rotation, drive gear 401 drives driven gear 301 and rotates synchronously, can make drive arrangement 4 control more subtle through the tooth ratio, can make drive arrangement 4 control step cam 3's position.

Wherein, the connecting rod 2 also includes the spring 202, the top of the connecting rod 2 is fixedly connected with a group of springs 202, the top of the connecting rod 2 is elastically connected with the top of the bracket 6 through the spring 202, the step cam 3 also includes the driven gear 301, the step cam 3 is rotatably connected with the inner part of the two ends of the bracket 6, the step cam 3 is a four-layer step cam, the step cam 3 is connected with the connecting rod 2 to form a cam transmission mechanism, one side of the step cam 3 is fixedly connected with a group of driven gears 301, the driven gears 301 are engaged with the driving gear 401 to form a gear transmission mechanism, when in use, the driving gear 401 drives the driven gear 301 to rotate through the gear transmission mechanism, the driven gear 301 drives the step cam 3 to rotate, the step cam 3 is rotated to realize the rotation of the step cam 3, the connecting rod 2 is jacked through the cams with different heights of each part of the step cam, the connecting rod 2 moves downward by the influence of the elasticity and gravity of the spring 202 when the stepped cams 3 are lowered layer by layer.

Wherein, the stopper 1 also includes a stopper head 101, the top of the stopper 1 is fixedly connected with the connecting rod 2, the bottom of the stopper 1 is fixedly connected with a group of stopper heads 101, the stopper head 101 is provided with four layers of stopper rings with different opening degrees, the uppermost layer is completely jointed and sealed with the water outlet 501, the opening layers of the stopper rings from the second layer to the fourth layer are increased layer by layer, the stopper head 101 is connected in the water outlet 501 in a sliding way, when in use, the connecting rod 2 moves up and down layer by layer under the influence of the step cam 3, the stopper 1 synchronizes the height of the connecting rod 2, the stopper head 101 slides at different heights on the inner wall of the water outlet 501 through the step cams 3 with different heights, the highest layer of the stopper head 101 is completely jointed with the water outlet 501 to form a closed way, each layer of the stopper head 101 has a larger opening area than the previous layer, each step of the outer wall of the step cam 3 is lifted one step, so, the water outlet 501 has larger and larger water outlet amount and simpler flow control.

The specific use mode and function of the embodiment are as follows:

the pouring molten steel is contained at the bottom of the steel containing barrel by the intermediate tank body 5 on the support 6, the driving device 4 fixed on the side wall of the support 6 rotates to drive the driving gear 401 to synchronously rotate, the driving gear 401 drives the driven gear 301 to synchronously rotate, the driven gear 301 is fixedly connected with the step cam 3 to realize the synchronous rotation of the step cam 3, so that the step cams 3 with different heights prop against the connecting rod 2, the connecting rod 2 can move up and down in the chute 601 of the support 6 through the sliding block 201, the connecting rod 2 is jacked up by the cams with different heights of each part of the step cam 3, the spring 202 at the top of the connecting rod 2 is compressed to enable the connecting rod 2 to move upwards when the step cams 3 increase layer by layer, the connecting rod 2 moves downwards under the influence of the elasticity and gravity of the spring 202 when the step cams 3 decrease layer by layer, the stopper rod 1 synchronously moves, each layer of the stopper rod head 101 is larger than the opening area of the previous layer, the stepped cam 3 is lifted one step when rotating, the stopper rod head 101 is lifted one layer synchronously, the water outlet quantity of the water outlet 501 is larger and larger, the flow control is simpler, and the water outlet 501 discharges molten steel quickly through the hole at the bottom of the support 6 for continuous casting in the subsequent steps.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The quick-change water gap of the continuous casting tundish is characterized in that: the quick-change water outlet of the continuous casting tundish comprises a bracket (6); a group of connecting rods (2) are connected in the sliding groove (601) at the top of the bracket (6) in a sliding manner; the side walls of two ends of the bracket (6) are fixedly connected with a group of driving devices (4); a driving shaft of the driving device (4) is rotatably connected with a group of stepped cams (3), and a driving gear (401) on the left side of the driving device (4) is meshed with a driven gear (301) on the right side of the stepped cams (3) to form a gear transmission mechanism; a group of intermediate tank bodies (5) are fixedly connected to the bottom plate of the bracket (6); a group of stopper rods (1) are respectively connected in a sliding way in the water outlet (501) of the intermediate tank body (5).

2. The quick-change drain nozzle of the continuous casting tundish according to claim 1, wherein: the intermediate tank body (5) further comprises a water outlet (501), the intermediate tank body (5) is fixedly connected to the support (6), the intermediate tank body (5) is arranged at the bottom of the steel ladle, and two groups of barrel-shaped water outlets (501) are fixedly connected to the bottom of the intermediate tank body (5).

3. The quick-change drain nozzle of the continuous casting tundish according to claim 1, wherein: connecting rod (2) are still including slider (201), two sets of slider (201) of fixedly connected with on the xarm of connecting rod (2), and support (6) are still including spout (601), and support (6) bottom is dull and stereotyped to support whole intermediate tank body (5) structure, and the top of support (6) both ends overhead respectively is provided with two sets of spouts (601), and sliding connection has a set of slider (201) in spout (601).

4. The quick-change drain nozzle of the continuous casting tundish according to claim 1, wherein: drive arrangement (4) are still including drive gear (401), and drive arrangement (4) fixed connection is on the overhead lateral wall in support (6) both ends, a set of drive gear (401) of fixedly connected with in the drive shaft of drive arrangement (4), and step cam (3) are still including driven gear (301), a set of driven gear (301) of fixedly connected with in step cam (3) one side, and driven gear (301) and drive gear (401) meshing constitute gear drive.

5. The quick-change drain nozzle of the continuous casting tundish according to claim 1, wherein: connecting rod (2) are still including spring (202), a set of spring (202) of connecting rod (2) top fixedly connected with, through spring (202) elastic connection between connecting rod (2) top and support (6) top, and ladder cam (3) rotate to be connected in the inside at support (6) both ends, and ladder cam (3) are the cam of four layers of step form, and ladder cam (3) meet with connecting rod (2) and constitute cam drive mechanism.

6. The quick-change drain nozzle of the continuous casting tundish according to claim 1, wherein: stopper rod (1) is still including stopper rod head (101), stopper rod (1) top fixed connection on connecting rod (2), stopper rod (1) bottom fixedly connected with a set of stopper rod head (101), stopper rod head (101) are provided with the ring plug of the different apertures in four layers, the superiors laminate completely sealed with delivery port (501), the second floor increases to the ring plug opening successive layer on fourth layer, stopper rod head (101) sliding connection is in delivery port (501).