CN216421055U

CN216421055U - Long nozzle quick replacement device

Info

Publication number: CN216421055U
Application number: CN202122487562.1U
Authority: CN
Inventors: 杨帅; 邰军凯; 霍立桥; 赵伟锋; 孟爱辉; 霍江潮; 赵冬; 李文敏; 韩冬; 吴利伟
Original assignee: Delong Steel Ltd
Current assignee: Delong Steel Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-05-03
Anticipated expiration: 2031-10-15

Abstract

A long nozzle quick replacement device comprises a mechanical arm, a fixed sleeve, a first platform, a second platform, a fork-shaped piece, a fork unloading part and a limiting moving part; the top end of the mechanical arm is connected with the fixing sleeve, and a limiting jack is arranged on the fixing sleeve along the direction of the central line of the mechanical arm; the fork-shaped piece is inserted into the fixing sleeve, transverse threaded holes are formed in the corresponding positions of the fixing sleeve and the fork-shaped piece, and the bolt penetrates through the threaded holes in the corresponding positions of the fixing sleeve and the fork-shaped piece; the first platform is connected with the side wall of the second platform, the upper end surfaces of the first platform and the second platform are flush, and the first platform and the second platform are both arranged on the ground through a support; the fork unloading part is arranged on the first platform, and the limiting moving part is arranged on the second platform. The utility model provides the high change efficiency at the long mouth of a river has reduced staff's intensity of labour.

Description

Long nozzle quick replacement device

Technical Field

The utility model relates to a change the device, especially a device that can change long mouth of a river fast belongs to smelting equipment technical field.

Background

In the continuous casting process, molten steel reaches a tundish from a ladle through a long nozzle, and the tundish flows into a crystallizer again for casting; the long nozzle has the functions of guiding the molten steel in the ladle into the tundish and isolating oxygen, so that the contact between the molten steel and oxygen in the air is reduced to the maximum extent; in the use process of the long nozzle, the service life of the long nozzle is short due to the corrosion of the steel slag and cannot be synchronous with the service life of the tundish, so that the use reliability of the long nozzle is ensured; when the long nozzle is replaced, the long nozzle needs to be moved out of the ladle, then the long nozzle is taken down from the backing ring, then a new long nozzle is replaced, and then the new long nozzle is moved to the lower part of the ladle and is butted, so that the process is time-consuming and labor-consuming; in addition, sometimes the long nozzle is replaced in the casting process, at the moment, the steel ladle is not assisted by the long nozzle, and the molten steel in the steel ladle directly splashes downwards, so that potential safety hazards brought to workers and adverse effects brought to a production workshop are avoided, the long nozzle needs to be replaced as soon as possible, and the situations of secondary oxidation and open casting of the molten steel are avoided; therefore, there is a need for a rapid replacement device for a long nozzle, which is capable of efficiently replacing the long nozzle, thereby ensuring smooth operation of tapping molten steel from a ladle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides a long mouth of a river quick replacement device, and it not only can reduce staff's intensity of labour, can also improve the change efficiency at long mouth of a river.

The problem is solved through following technical scheme:

a quick replacement device for a long nozzle comprises a mechanical arm, a fixed sleeve, a first platform, a second platform, a fork-shaped piece, a fork unloading part and a limiting moving part; the top end of the mechanical arm is connected with the fixed sleeve, and the fixed sleeve is provided with a limiting jack along the central line direction of the mechanical arm; the fork-shaped piece is inserted into the fixing sleeve, transverse threaded holes are formed in the corresponding positions of the fixing sleeve and the fork-shaped piece, and the bolt penetrates through the threaded holes in the corresponding positions of the fixing sleeve and the fork-shaped piece; the first platform is connected with the side wall of the second platform, the upper end faces of the first platform and the second platform are flush, and the first platform and the second platform are both arranged on the ground through a support; the fork unloading part is arranged on the first platform, and the limiting moving part is arranged on the second platform.

In the device for quickly replacing the long nozzle, the fork-shaped part comprises an inserted bar, a U-shaped frame and a backing ring; one end of the inserted bar penetrates through the limiting insertion hole of the fixing sleeve and is relatively fixed with the fixing sleeve through a bolt, and the other end of the inserted bar is connected with the U-shaped frame; the trunnion ring is arranged on the U-shaped frame, and the long water gap is arranged on the trunnion ring.

In the device for quickly replacing the long nozzle, the fork unloading part comprises a hydraulic cylinder, a connecting vertical plate and a U-shaped fork; a horizontal hole is formed in the first platform, and a shell of the hydraulic cylinder is arranged in the horizontal hole of the first platform; the lower end of the connecting vertical plate is connected with a piston rod of the hydraulic cylinder, the upper end of the connecting vertical plate is connected with the U-shaped fork, and the opening direction of the U-shaped fork is upward; the inner side wall interval of the U-shaped fork is larger than the width of the inserted rod, and the inner side wall interval of the U-shaped fork is smaller than the length of the U-shaped frame.

In the device for quickly replacing the long nozzle, the limiting moving part comprises a sliding plate, a connecting frame and a U-shaped clamping jaw; the upper end surface of the second platform is provided with a guide groove, and the central line of the guide groove is vertical to the axial line of the piston rod of the hydraulic cylinder; the sliding plate is arranged on the upper end face of the second platform, the lower end face of the sliding plate is provided with a sliding block, and the sliding block is inserted into the guide groove; the lower end of the connecting frame is arranged on the upper end face of the sliding plate, and the U-shaped clamping jaws are arranged on the side face, close to the hydraulic cylinder, of the connecting frame; and fork-shaped pieces are arranged on the U-shaped clamping jaws.

The utility model discloses a fixed cover has realized the purpose of the long mouth of a river of quick replacement with the quick assembly disassembly cooperation of fork type spare, no longer need pull down long mouth of a river from the trunnion ring, only need will treat to change the plug-in type spare on the long mouth of a river and pull down, then will take the fork type spare at the new long mouth of a river to insert the change that fixed cover can accomplish the long mouth of a river, has greatly improved the change efficiency at long mouth of a river, has reduced staff's intensity of labour.

Drawings

Fig. 1 is a schematic view of a first three-dimensional structure of the present invention;

fig. 2 is a schematic view of a second three-dimensional structure of the present invention.

The list of labels in the figure is: 1. the mechanical arm, 2, a fixed sleeve, 3, a first platform, 4, a second platform, 5, an inserted bar, 6, a U-shaped frame, 7, a supporting ring, 8, a hydraulic cylinder, 9, a connecting vertical plate, 10, a U-shaped fork, 11, a sliding plate, 12, a connecting frame and 13, U-shaped clamping jaws.

Detailed Description

Referring to fig. 1 and 2, the utility model comprises a mechanical arm 1, a fixed sleeve 2, a first platform 3, a second platform 4, a fork-shaped piece, a fork-unloading part and a limiting moving part; the mechanical arm 1 is used for driving the fixing sleeve 2 and a fork-shaped part arranged at the upper end of the fixing sleeve 2 to move, the long nozzle is arranged on the fork-shaped part, and when the fork-shaped part moves, the long nozzle is also driven to move; the top end of the mechanical arm 1 is connected with the fixed sleeve 2, and the fixed sleeve 2 is provided with a limiting jack along the central line direction of the mechanical arm 1; the fork-shaped piece is inserted into the fixing sleeve 2, the fixing sleeve 2 and the fork-shaped piece are provided with transverse threaded holes at corresponding positions, the bolt simultaneously penetrates through the threaded holes of the fixing sleeve 2 corresponding to the fork-shaped piece, and after the bolt is removed, the fork-shaped piece can be randomly inserted into the fixing sleeve 2, so that the purpose of quick replacement is realized; the first platform 3 is connected with the side wall of the second platform 4, the upper end faces of the first platform 3 and the second platform 4 are flush, and the first platform 3 and the second platform 4 are both arranged on the ground through a support; the fork-unloading part is arranged on the first platform 3, and the limit moving part is arranged on the second platform 4.

The fork-shaped part comprises an inserted bar 5, a U-shaped frame 6 and a backing ring 7; one end of the inserted bar 5 penetrates through a limiting jack of the fixed sleeve 2 and is fixed with the fixed sleeve 2 relatively through a bolt, and the other end of the inserted bar 5 is connected with the U-shaped frame 6; the trunnion ring 7 is arranged on the U-shaped frame 6, and the long water gap is arranged on the trunnion ring 7.

The fork unloading part comprises a hydraulic cylinder 8, a connecting vertical plate 9 and a U-shaped fork 10; a horizontal hole is formed in the first platform 3, and a shell of the hydraulic cylinder 8 is arranged in the horizontal hole of the first platform 3; the lower end of the connecting vertical plate 9 is connected with a piston rod of the hydraulic cylinder 8, the upper end of the connecting vertical plate 9 is connected with the U-shaped fork 10, and the opening direction of the U-shaped fork 10 is upward; the U-shaped fork 10 is driven to reciprocate by the action of the hydraulic cylinder 8, so that the U-shaped fork 10 pushes out a fork-shaped part to be replaced, which is inserted in the fixed sleeve 2; the inside wall interval of U type fork 10 is greater than the width of inserted bar 5, and the inside wall interval of U type fork 10 is less than the length of U type frame 6, and this has guaranteed that U type fork 10 can insert in the periphery of inserted bar 5, and can touch and press on U type frame 6 when promoting forward to push out fixed cover 2 with fork type spare in.

The limiting moving part comprises a sliding plate 11, a connecting frame 12 and a U-shaped claw 13; the upper end surface of the second platform 4 is provided with a guide groove, and the central line of the guide groove is vertical to the axial line of the piston rod of the hydraulic cylinder 8; the sliding plate 11 is arranged on the upper end face of the second platform 4, the lower end face of the sliding plate 11 is provided with a sliding block, and the sliding block is inserted into the guide groove; the slide plate 11 moves along the linear direction of the guide groove; the lower end of the connecting frame 12 is arranged on the upper end face of the sliding plate 11, and the U-shaped clamping jaws 13 are arranged on the side face, close to the hydraulic cylinder 8, of the connecting frame 12; and fork-shaped pieces are arranged on the U-shaped clamping jaws 13.

The actual use process is as follows: if the long nozzle in use needs to be replaced, a worker controls the mechanical arm 1 to drive the long nozzle to be replaced to be far away from a steel ladle and close to the first platform 3, when the fixing sleeve 2 on the mechanical arm 1 is close to the upper end face of the first platform 3 and the U-shaped fork 10 is inserted at two sides of the inserted link 5, the bolt is removed, the fixing state of the fixing sleeve 2 and the inserted link 5 is cancelled, then the hydraulic cylinder is started, the U-shaped fork 10 pushes the U-shaped frame 6 to move, so that the whole fork-shaped part is driven to be separated from the fixing sleeve 2, and at the moment, the old long nozzle is pushed down by the U-shaped fork 10 along with the fork-shaped part; in an initial state, a new fork-shaped part is arranged on the U-shaped clamping jaw 13, and a new long water gap is arranged on the new fork-shaped part; then the staff promotes slide 11 to remove, until slide 11 moves to the end of guide way, the inserted bar 5 on the new fork type spare has aimed at the spacing jack on fixed cover 2 at this moment, and the staff promotes the inserted bar 5 on the new fork type spare to insert fixed cover 2 manually, inserts after the certain degree of depth, moves away slide 11, and U type jack catch 13 breaks away from new fork type spare this moment, then continues to promote new fork type spare, until the fork bar 5 on the new fork type spare contacts with the medial surface of the spacing jack of fixed cover 2, then fixes it through the bolt, and long mouth of a river change operation is accomplished to this moment.

Claims

1. The utility model provides a long mouth of a river quick replacement device which characterized in that: the automatic fork-unloading device comprises a mechanical arm (1), a fixed sleeve (2), a first platform (3), a second platform (4), a fork-shaped piece, a fork-unloading part and a limiting moving part; the top end of the mechanical arm (1) is connected with the fixed sleeve (2), and the fixed sleeve (2) is provided with a limiting jack along the central line direction of the mechanical arm (1); the fork-shaped piece is inserted into the fixed sleeve (2), the fixed sleeve (2) and the fork-shaped piece are provided with transverse threaded holes at corresponding positions, and the bolt penetrates through the threaded holes of the fixed sleeve (2) corresponding to the fork-shaped piece; the first platform (3) is connected with the side wall of the second platform (4), the upper end faces of the first platform and the second platform are flush, and the first platform (3) and the second platform (4) are arranged on the ground through a support; the fork unloading part is arranged on the first platform (3), and the limiting moving part is arranged on the second platform (4).

2. The long nozzle quick change device of claim 1, wherein: the fork-shaped piece comprises an inserted bar (5), a U-shaped frame (6) and a supporting ring (7); one end of the inserted bar (5) penetrates through a limiting jack of the fixed sleeve (2) and is relatively fixed with the fixed sleeve (2) through a bolt, and the other end of the inserted bar (5) is connected with the U-shaped frame (6); the trunnion ring (7) is arranged on the U-shaped frame (6), and the long nozzle is arranged on the trunnion ring (7).

3. The long nozzle quick change device of claim 2, wherein: the fork unloading part comprises a hydraulic cylinder (8), a connecting vertical plate (9) and a U-shaped fork (10); a horizontal hole is formed in the first platform (3), and a shell of the hydraulic cylinder (8) is arranged in the horizontal hole of the first platform (3); the lower end of the connecting vertical plate (9) is connected with a piston rod of the hydraulic cylinder (8), the upper end of the connecting vertical plate (9) is connected with the U-shaped fork (10), and the opening direction of the U-shaped fork (10) is upward; the inner side wall space of the U-shaped fork (10) is larger than the width of the inserted rod (5), and the inner side wall space of the U-shaped fork (10) is smaller than the length of the U-shaped frame (6).

4. The long nozzle quick change device of claim 3, wherein: the limiting moving part comprises a sliding plate (11), a connecting frame (12) and a U-shaped claw (13); the upper end surface of the second platform (4) is provided with a guide groove, and the central line of the guide groove is vertical to the axial line of the piston rod of the hydraulic cylinder (8); the sliding plate (11) is arranged on the upper end face of the second platform (4), the lower end face of the sliding plate (11) is provided with a sliding block, and the sliding block is inserted into the guide groove; the lower end of the connecting frame (12) is arranged on the upper end face of the sliding plate (11), and the U-shaped clamping jaws (13) are arranged on the side face, close to the hydraulic cylinder (8), of the connecting frame (12); and fork-shaped pieces are arranged on the U-shaped clamping jaws (13).