Limiting device for upper nozzle of thick plate blank

Abstract

The utility model discloses an upper nozzle limiting device for thick slabs, which relates to the technical field of steel casting equipment and comprises a base, a mounting port is arranged on one side of the base, guide components are mounted on the upper end face of the base and positioned on two sides of the mounting port, and moving components are mounted on the two guide components. Lifting assemblies are installed on the two moving assemblies, limiting assemblies are installed on the two lifting assemblies, the limiting assemblies are connected with the two lifting assemblies through connecting assemblies, each limiting assembly comprises a limiting circular ring, and four positioning rods are evenly welded to the outer wall of each limiting circular ring; and four positioning insertion holes which are in insertion fit with the four positioning rods are formed in the outer side of the mounting opening in the machine base. According to the quick-change mechanism, the guide assembly, the moving assembly, the lifting assembly and the limiting assembly are used in cooperation, it can be guaranteed that the upper nozzle is placed in the machine base of the quick-change mechanism to be located at the centering position, then the installation quality of the upper nozzle is guaranteed, and the steel pouring efficiency of a continuous casting machine is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel casting equipment, in particular to a limiting device for the upper nozzle of a thick slab. Background Art

[0002] In the daily production of a continuous casting workshop, due to a certain gap between the upper nozzle of the thick slab and the inner wall of the quick-change mechanism, the equipment itself cannot center the nozzle, and the nozzle often offsets and is not centered during the installation process, thus affecting the steel pouring of the continuous casting machine and reducing the production efficiency. Therefore, a limiting device for the upper nozzle of the thick slab is provided. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a limiting device for the upper nozzle of a thick slab. By the combined use of a guiding component, a moving component, a lifting component and a limiting component, it can ensure that the upper nozzle is in a centered position when placed in the seat of the quick-change mechanism, thereby ensuring the installation quality of the upper nozzle and effectively ensuring the steel pouring efficiency of the continuous casting machine, overcoming the deficiencies of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A limiting device for the upper nozzle of a thick slab, including a seat. An installation opening is provided on one side of the seat. Guiding components are installed on both sides of the installation opening on the upper end surface of the seat. Moving components are installed on both guiding components. Lifting components are installed on both moving components. A limiting component is installed on the two lifting components. The limiting component is connected to both lifting components through a connecting component;

[0006] The limiting component includes a limiting ring, and four positioning rods are evenly welded on the outer wall of the limiting ring;

[0007] Four positioning holes that form a plug-in fit with the four positioning rods are provided on the seat outside the installation opening.

[0008] Through the above scheme, by the combined use of the guiding component, the moving component, the lifting component and the limiting component, it can ensure that the upper nozzle is in a centered position when placed in the seat of the quick-change mechanism, thereby ensuring the installation quality of the upper nozzle and effectively ensuring the steel pouring efficiency of the continuous casting machine.

[0009] Preferably, the guiding component includes a guiding rod fixed on the side of the upper end surface of the seat, and a roller groove is provided on the guiding rod.

[0010] Preferably, the moving component includes two rollers that are rollingly clamped in the roller groove, and a support plate is connected to the tops of the two rollers.

[0011] Preferably, the lifting assembly includes a hydraulic telescopic rod installed on the support plate, and the top end of the hydraulic telescopic rod is connected with a support plate.

[0012] Preferably, the connecting assembly includes a connecting block welded to the outer wall of the limiting ring, and a positioning hole is formed in the connecting block. A positioning pin is welded to the upper end surface of the support plate, and the positioning pin and the positioning hole form a plug-in fit.

[0013] Preferably, one end of the connecting block is welded with a U-shaped plate, a locking rod is slidably inserted into the U-shaped plate, a pull ring is welded to the outer end of the locking rod located outside the U-shaped plate, the other end of the locking rod is slidably inserted into the connecting block, a locking hole is formed in the positioning pin, and the end of the locking rod located in the connecting block forms a plug-in fit with the locking hole. A retaining ring is welded to the outer wall of the locking rod, and a spring is sleeved on the part of the locking rod located between the retaining ring and the U-shaped plate.

[0014] Preferably, a handle is welded to the outer wall of the limiting ring, and the handle is in an inclined state.

[0015] The beneficial effects of the utility model are as follows:

[0016] By the combined use of the guiding assembly, the moving assembly, the lifting assembly and the limiting assembly, it can be ensured that the water inlet is in the centering position when placed in the machine base of the quick-change mechanism, thereby ensuring the installation quality of the water inlet and effectively ensuring the steel casting efficiency of the continuous casting machine. Description of the Drawings

[0017] Figure 1 FIG. 1 is a first perspective three-dimensional structure diagram of a water inlet limiting device for a thick slab proposed by the utility model.

[0018] Figure 2 FIG. 2 is a second perspective three-dimensional structure diagram of a water inlet limiting device for a thick slab proposed by the utility model.

[0019] Figure 3 FIG. 3 is a partial three-dimensional structure diagram of a water inlet limiting device for a thick slab proposed by the utility model.

[0020] Figure 4 FIG. 4 is a Figure 3 magnified structure diagram of part A in a water inlet limiting device for a thick slab proposed by the utility model.

[0021] In the figure: 1, machine base; 2, installation port; 3, positioning socket; 4, guiding rod; 5, roller groove; 6, limiting ring; 7, connecting block; 8, handle; 9, positioning rod; 10, hydraulic telescopic rod; 11, support plate; 12, roller; 13, support plate; 14, positioning pin; 15, positioning hole; 16, locking hole; 17, retaining ring; 18, locking rod; 19, spring; 20, pull ring; 21, U-shaped plate. Detailed Embodiment

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Example 1, referring to Figures 1-4 , a stopper device for the upper nozzle of a thick slab, including a machine base 1. An installation opening 2 is provided on one side of the machine base 1. Guide components are installed on both sides of the upper end surface of the machine base 1 and located at the installation opening 2. Moving components are installed on both guide components. Lifting components are installed on both moving components. A limiting component is installed on the two lifting components. The limiting component and the two lifting components are both connected through a connecting component;

[0024] The limiting component includes a limiting ring 6. Four positioning rods 9 are evenly welded on the outer wall of the limiting ring 6. A handle 8 is welded on the outer wall of the limiting ring 6, and the handle 8 is in an inclined state;

[0025] Four positioning holes 3 that form a plug-in fit with the four positioning rods 9 are provided on the machine base 1 outside the installation opening 2;

[0026] The guide component includes a guide rod 4 fixed on the side of the upper end surface of the machine base 1. A roller groove 5 is provided on the guide rod 4;

[0027] The moving component includes two rollers 12 that are rollingly clamped in the roller groove 5. A support plate 11 is connected to the tops of the two rollers 12.

[0028] The lifting component includes a hydraulic telescopic rod 10 installed on the support plate 11. The top of the hydraulic telescopic rod 10 is connected to a support plate 13;

[0029] The connecting component includes a connecting block 7 welded on the outer wall of the limiting ring 6. A positioning hole 15 is provided on the connecting block 7. A positioning pin 14 is welded on the upper end surface of the support plate 13. The positioning pin 14 and the positioning hole 15 form a plug-in fit;

[0030] One end of the connecting block 7 is welded with a U-shaped plate 21. A locking rod 18 is slidably inserted into the U-shaped plate 21. A pull ring 20 is welded to the end of the locking rod 18 located outside the U-shaped plate 21. The other end of the locking rod 18 is slidably inserted into the connecting block 7. A locking hole 16 is provided on the positioning pin 14. The end of the locking rod 18 located in the connecting block 7 and the locking hole 16 form a plug-in fit. A retaining ring 17 is welded on the outer wall of the locking rod 18. A spring 19 is sleeved on the part of the locking rod 18 located between the retaining ring 17 and the U-shaped plate 21.

[0031] Working principle: By pulling the pull ring 20, the locking rod 18 can be driven to move towards the outside of the U-shaped plate 21 together. At the same time, the spring 19 is compressed. The hydraulic telescopic rod 10 is used to push the positioning pin 14 upward and insert it into the positioning hole 15. Then the pull ring 20 is released. Under the rebound effect of the spring 19, the retaining ring 17 and the locking rod 18 are pushed to move back, so that the end of the locking rod 18 is inserted into the locking hole 16, realizing the connection between the limiting ring 6 and the hydraulic telescopic rod 10. By pushing the limiting ring 6 with the handle 8, the roller 12 rolls along the roller groove 5 of the guide rod 4. When the limiting ring 6 moves to the position directly above the installation port 2 and stops, the hydraulic telescopic rod 10 is contracted to drive the limiting ring 6 and the four positioning rods 9 to descend. The water inlet is placed into the installation port 2 of the machine base 1 from the inside of the limiting ring 6. Through the limiting effect of the limiting ring 6, the gap between the water inlet and the installation hole can be ensured to be uniform, thus ensuring that the water inlet is in the centered position.

[0032] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for limiting the water inlet of a thick slab, comprising a machine base (1), characterized in that: A mounting opening (2) is provided on one side of the machine base (1), guide assemblies are installed on the upper end surface of the machine base (1) and on both sides of the mounting opening (2), moving assemblies are installed on the two guide assemblies, lifting assemblies are installed on the two moving assemblies, and limit assemblies are installed on the two lifting assemblies, and the limit assemblies are connected to the two lifting assemblies via a connecting assembly; The limiting assembly comprises a limiting ring (6), and four positioning rods (9) are evenly welded to the outer wall of the limiting ring (6); Four positioning sockets (3) are arranged on the machine base (1) outside the mounting opening (2) and are plug-fitted with the four positioning rods (9).

2. A water inlet limiting device for thick slabs according to claim 1, characterized in that: The guide assembly comprises a guide rod (4) fixed to the side of the upper end surface of the machine base (1), and a roller groove (5) is formed on the guide rod (4).

3. The device for limiting the water inlet of thick slab according to claim 1, characterized in that: The moving assembly comprises two rollers (12) which are rollingly engaged in the roller grooves (5), and the top ends of the two rollers (12) are connected to a support plate (11).

4. A water inlet limiting device for thick slabs according to claim 3, characterized in that: The lifting assembly comprises a hydraulic telescopic rod (10) mounted on a support plate (11), and the top end of the hydraulic telescopic rod (10) is connected to a support plate (13).

5. The device for limiting the water inlet of thick slab according to claim 4, characterized in that: The connection assembly comprises a connection block (7) welded to the outer wall of the limiting ring (6), and a positioning hole (15) is provided on the connection block (7). A positioning pin (14) is welded to the upper end surface of the support plate (13), and the positioning pin (14) and the positioning hole (15) form a plug-in fit.

6. A water inlet limiting device for thick slabs according to claim 5, characterized in that: A U-shaped plate (21) is welded to one end of the connecting block (7), a locking rod (18) is slidably inserted on the U-shaped plate (21), a pull ring (20) is welded to one end of the locking rod (18) located outside the U-shaped plate (21), the other end of the locking rod (18) is slidably inserted in the connecting block (7), a locking hole (16) is provided on the positioning pin (14), one end of the locking rod (18) located in the connecting block (7) is plugged into the locking hole (16), a retaining ring (17) is welded to the outer wall of the locking rod (18), and a spring (19) is sleeved on the portion of the locking rod (18) located between the retaining ring (17) and the U-shaped plate (21).

7. The device for limiting the water inlet of thick slab according to claim 5, characterized in that: A handle (8) is welded to the outer wall of the limiting circular ring (6), and the handle (8) is in an inclined state.

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