A quick-change mechanism for the water nozzle of the tundish for small square billets

Abstract

The utility model discloses a quick-changing mechanism for a tundish water nozzle of a small square billet, and relates to the technical field of continuous casting machines. The changing mechanism comprises a fixed platform arranged below the tundish, the fixed platform is fitted with the tundish, a through slot is formed on the top of the fixed platform, and one side of the through slot cavity is open. A first clamping slot is provided on the top of the fixed platform, and a second clamping slot is provided on the bottom of the fixed platform. Both the first clamping slot and the second clamping slot are communicated with the through slot. The water nozzle is clamped between the first clamping slot and the second clamping slot, and the top of the water nozzle is flush with the top of the fixed platform. A rotating shaft is fixedly connected to the bottom of the fixed platform. The present application utilizes the close fit between the fixed platform and the tundish. When the water nozzle is filled with molten steel during the rotation of the fixed platform, the molten steel will not splash, and the anti-leakage effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting machines, in particular to a quick-changing mechanism for a tundish water nozzle of a small square billet. Background Art

[0002] After searching, the Chinese patent publication number is CN218050314U, and the publication date is 2022-12-16. It discloses a leakage-proof quick-change mechanism for the water inlet of the tundish. The utility model includes a turntable, and the turntable is evenly distributed with jacks on the circumference. The water inlet can be slidably connected in the jack, and the opening of the jack is provided with a cone surface, and the side of the bell mouth abuts on the cone surface; the turntable is detachably connected with a mounting base between the two jacks, and the mounting base is slidably connected with a top cover, and the bottom surface of the mounting base abuts against the upper plane of the water inlet part; the utility model can prevent molten steel from leaking, and at the same time, the water inlet can be replaced more conveniently and quickly without stopping the machine, effectively improving the processing stability and safety. However, when the device is in use, due to the height difference between the turntable and the top cover, when the water inlet is filled with molten steel, when the turntable is rotating, when the drain outlet is blocked by the top cover, the pressure of the molten steel discharged from the drain outlet becomes greater, so that the molten steel will splash onto the turntable, and the leakage-proof effect needs to be improved. Utility Model Content

[0003] The utility model aims to provide a quick-change mechanism for a tundish water nozzle of a small square billet, so as to solve the problems mentioned in the above-mentioned background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A quick-change mechanism for a tundish water nozzle of a small square billet comprises a tundish, a water nozzle is arranged below the tundish, and a replacement mechanism for replacing the water nozzle is arranged below the tundish.

[0006] The replacement mechanism includes a fixed table arranged below the tundish, the fixed table is fitted with the tundish, the top of the fixed table is a through slot, one side of the through slot cavity is open, the top of the fixed table is provided with a first slot, the bottom of the fixed table is provided with a second slot, the first slot and the second slot are both connected to the through slot, the water outlet is clamped between the first slot and the second slot, and the top of the water outlet is flush with the top of the fixed table, and the bottom of the fixed table is fixedly connected with a rotating shaft.

[0007] As a further solution of the utility model: the bottom of the fixed platform is connected to an upper ring body through a first mounting mechanism, the outer surface of the upper ring body is fixedly connected to a reinforcement ring through an upper straight rod, and the reinforcement ring is sleeved on the outside of the water outlet.

[0008] As a further solution of the utility model: the first mounting mechanism includes an upper L-shaped rod fixedly connected to the top of the upper ring body, and the upper L-shaped rod is fixedly connected to the fixing platform through a first bolt.

[0009] As a further solution of the utility model: the bottom of the fixed platform is connected to a lower ring body through a second mounting mechanism, the outer surface of the lower ring body is fixedly connected to a support tube through a lower straight rod, and the water inlet is inserted into the support tube.

[0010] As a further solution of the utility model: the second mounting mechanism includes a lower L-shaped rod fixedly connected to the top of the lower ring body, and the lower L-shaped rod is fixedly connected to the fixing platform through a second bolt.

[0011] As a further solution of the utility model: a through hole is penetrated through the bottom of the support tube, and the radius of the lower ring body is greater than the radius of the upper ring body.

[0012] Beneficial Effects

[0013] The utility model provides a quick-change mechanism for the water nozzle of a tundish for small square billets. Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The present application utilizes the close fit between the fixed table and the tundish. When the fixed table is rotating, when the nozzle is filled with molten steel, the molten steel will not splash, and the anti-leakage effect is good.

[0015] (2) The present application can support the water outlet by using a support tube and limit the water outlet by using a reinforcement ring to prevent the water outlet from shaking, thereby improving the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the fixing platform of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the upper ring body, the upper straight rod and the reinforcement ring of the utility model;

[0019] Figure 4 It is a stereoscopic diagram of the lower ring body, the lower straight rod and the support tube of the utility model.

[0020] In the figure: 1. tundish; 2. water inlet; 3. replacement mechanism; 31. fixed table; 32. through slot; 33. first slot; 34. second slot; 35. rotating shaft; 4. upper ring body; 5. upper straight rod; 6. reinforcement ring; 7. upper L-shaped rod; 8. first bolt; 9. lower ring body; 10. lower straight rod; 11. support tube; 12. lower L-shaped rod; 13. second bolt; 14. through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-2 As shown, the utility model is a quick-change mechanism for a tundish water nozzle of a small square billet, comprising a tundish 1, the diameter of the drainage port of the tundish 1 is smaller than the diameter of the water nozzle 2, the water nozzle 2 is arranged below the tundish 1, and a replacement mechanism 3 for replacing the water nozzle 2 is arranged below the tundish 1; the replacement mechanism 3 comprises a fixed platform 31 arranged below the tundish 1, the fixed platform 31 is fitted with the tundish 1, the top of the fixed platform 31 has a through groove 32, one side of the groove cavity of the through groove 32 is open, the top of the fixed platform 31 is provided with a first card slot 33, the fixed platform A second slot 34 is provided at the bottom of 31, the first slot 33 and the second slot 34 are both connected to the through slot 32, the water nozzle 2 is stuck between the first slot 33 and the second slot 34, and the top of the water nozzle 2 is flush with the top of the fixed platform 31, and a rotating shaft 35 is fixedly connected to the bottom of the fixed platform 31, and the rotating shaft 35 is connected to an external motor or other equipment that can drive the rotating shaft 35 to rotate. By utilizing the close fit between the fixed platform 31 and the tundish 1, when the fixed platform 31 is rotating, when the water nozzle 2 is filled with molten steel, the molten steel will not splash, and the anti-leakage effect is good.

[0024] Embodiment 2

[0025] Based on Example 1, see Figure 1 , Figure 3 and Figure 4 shown.

[0026] The bottom of the fixing platform 31 is connected to an upper ring body 4 via a first mounting mechanism, and the outer surface of the upper ring body 4 is fixedly connected to a reinforcement ring 6 via an upper straight rod 5 . The reinforcement ring 6 is sleeved on the outside of the nozzle 2 .

[0027] The first mounting mechanism includes an upper L-shaped rod 7 fixedly connected to the top of the upper ring body 4 , and the upper L-shaped rod 7 is fixedly connected to the fixing platform 31 through a first bolt 8 .

[0028] The bottom of the fixed platform 31 is connected to a lower ring body 9 via a second mounting mechanism, the outer surface of the lower ring body 9 is fixedly connected to a support tube 11 via a lower straight rod 10 , and the nozzle 2 is inserted into the support tube 11 .

[0029] The second mounting mechanism includes a lower L-shaped rod 12 fixedly connected to the top of the lower ring body 9. The lower L-shaped rod 12 is fixedly connected to the fixed platform 31 through a second bolt 13. The water inlet 2 can be supported by utilizing the support tube 11, and the water inlet 2 can be limited by utilizing the reinforcement ring 6 to prevent the water inlet 2 from shaking, thereby improving the overall stability of the device.

[0030] A through hole 14 is formed through the bottom of the support tube 11 , and the radius of the lower ring body 9 is greater than the radius of the upper ring body 4 .

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] The working principle of the utility model is as follows: the water nozzle 2 is placed above the reinforcement ring 6 and stuck in the through groove 32, and then the bottom of the water nozzle 2 is passed through the reinforcement ring 6 to prevent it from being in the support tube 11, so that the water nozzle 2 will also be stuck between the first slot 33 and the second slot 34, and the external driving device is used to drive the rotating shaft 35 to rotate, thereby driving the fixed platform 31 to rotate, and then driving the water nozzle 2 to rotate. During the rotation process, the fixed platform 31 and the tundish 1 are always in a tightly fitted state. Therefore, during the rotation of the fixed platform 31, when the water nozzle 2 is full of molten steel, the molten steel will not splash, and the anti-leakage effect is good; when the water nozzle 2 is full of molten steel and needs to be taken out, the water nozzle 2 is pushed up at the through hole 14 to move the water nozzle 2 out of the reinforcement ring 6, and then the water nozzle 2 can be taken out from the through groove 32.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-change mechanism for a tundish water nozzle of a small square billet, comprising a tundish (1), characterized in that: A nozzle (2) is provided below the tundish (1), and a replacement mechanism (3) for replacing the nozzle (2) is provided below the tundish (1); The replacement mechanism (3) comprises a fixed platform (31) arranged below the tundish (1), the fixed platform (31) being fitted with the tundish (1), the top of the fixed platform (31) being a through slot (32), one side of the slot cavity of the through slot (32) being open, the top of the fixed platform (31) being provided with a first clamping slot (33), the bottom of the fixed platform (31) being provided with a second clamping slot (34), the first clamping slot (33) and the second clamping slot (34) both being connected to the through slot (32), the water inlet (2) being clamped between the first clamping slot (33) and the second clamping slot (34), the top of the water inlet (2) being flush with the top of the fixed platform (31), and the bottom of the fixed platform (31) being fixedly connected with a rotating shaft (35).

2. The quick-change mechanism for the water nozzle of a billet tundish according to claim 1 is characterized in that: The bottom of the fixed platform (31) is connected to an upper ring body (4) via a first mounting mechanism, and the outer surface of the upper ring body (4) is fixedly connected to a reinforcement ring (6) via an upper straight rod (5), and the reinforcement ring (6) is sleeved on the outside of the water inlet (2).

3. The quick-change mechanism for the water nozzle of a billet tundish according to claim 2 is characterized in that: The first mounting mechanism comprises an upper L-shaped rod (7) fixedly connected to the top of the upper ring body (4); the upper L-shaped rod (7) is fixedly connected to the fixing platform (31) via a first bolt (8).

4. The quick-change mechanism for the water nozzle of a billet tundish according to claim 2 is characterized in that: The bottom of the fixed platform (31) is connected to a lower ring body (9) via a second mounting mechanism, the outer surface of the lower ring body (9) is fixedly connected to a support tube (11) via a lower straight rod (10), and the water inlet (2) is inserted into the support tube (11).

5. The quick-change mechanism for the water nozzle of a tundish for a small square billet according to claim 4 is characterized by: The second mounting mechanism comprises a lower L-shaped rod (12) fixedly connected to the top of the lower ring body (9); the lower L-shaped rod (12) is fixedly connected to the fixing platform (31) via a second bolt (13).

6. The quick-change mechanism for the water nozzle of a tundish for a small square billet according to claim 4, characterized in that: A through hole (14) is formed through the bottom of the support tube (11), and the radius of the lower ring body (9) is greater than the radius of the upper ring body (4).

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