Ladle sliding nozzle device

Abstract

The utility model relates to a steel ladle sliding nozzle device which is composed of a base assembly, a support assembly, a sliding block assembly, a driving assembly and a refractory material assembly, the base assembly is composed of a base, an upper jacking plate and a lower jacking plate, a cam is installed on one side of the upper jacking plate through a cam cover plate, a hexagonal prism matched with an inner hexagonal wrench in the axial direction is arranged on the cam, and the sliding block assembly is installed on the support assembly. An inner hexagonal wrench is placed on the hexagonal prism, and the inner hexagonal wrench is wrenched to enable the cam to rotate, so that the upper jacking plate is driven to move up and down, and jacking and loosening of the upper sliding plate and the lower sliding plate are achieved. Compared with the prior art, the sliding plate is provided with the jacking device, the spring assembly is placed in the base, the compression position of the spring is located on the lower portion, the using direction of the safety pin is the side face, the defects that the sliding plate moves, dust is accumulated in the disc spring assembly, and the disc spring assembly is close to a heat radiation source are overcome, and the service life of the safety pin is prolonged; the safety is improved; and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to a ladle sliding nozzle device, in particular to a ladle sliding nozzle device with a slide plate having a tightening device, a spring assembly placed inside a base, a spring compression position located at the bottom, and an integrated safety pin design, which is a technical problem that needs to be solved at present. Background Art

[0002] Application number is 200680016909.X， The Chinese invention patent application with application date of October 26, 2006 and publication (announcement) number CN101189087A discloses a ladle sliding nozzle device, which has the following disadvantages: first, the slide plate has no tightening device, and the slide plate will move during movement; second, the spring is located in the bracket, and the ambient temperature is high, which is not conducive to the stability and safety of the spring; third, the spring compression position is at the top in the working state, and dust can easily enter the spring from the compression position, and it is not easy to be discharged, causing the spring pressure to increase, affecting the safe operation of the mechanism; fourth, in the working state, the safety pin is facing downward and is easy to fall off, causing steel leakage accidents. Therefore, designing a ladle sliding nozzle device with a tightening device on the slide plate, placing the spring assembly inside the base, the spring compression position is located at the bottom, and the safety pin is integrated, is a technical problem that needs to be solved at present. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a ladle sliding gate device with a slide plate having a tightening device, placing a spring assembly inside a base, a spring compression position located at the bottom, and an integrated safety pin design, which is a technical problem that needs to be solved at present.

[0004] The technical solution of the utility model to solve the technical problem is:

[0005] The base assembly, the bracket assembly, the slider assembly, the drive assembly and the refractory assembly are composed of the base, the upper tightening plate and the lower tightening plate. A cam is installed on one side of the upper tightening plate through a cam cover plate. The cam has a hexagonal prism that axially matches the hexagonal wrench. The hexagonal wrench is placed on the hexagonal prism and the cam is rotated by pulling the hexagonal wrench, thereby driving the upper tightening plate to move up and down, thereby realizing the tightening and loosening of the upper and lower slides. This can avoid the safety hazards caused by the movement of the slide to the mechanism, and can also improve the continuous sliding rate of the slide, reducing the factory production cost.

[0006] As a preferred solution of the utility model, the most important factor affecting the safety of the spring is the ambient temperature. Since the base is farther away from the molten steel surface in the tundish than the bracket and has a lower temperature (according to actual on-site measurements, the temperature of the mechanism base is about 30°C lower than the temperature of the slider), placing the disc spring assembly inside the base is safer than placing the spring in the bracket.

[0007] As a preferred solution of the utility model, the disc spring group is composed of a disc spring sheet, a disc spring guide rod, a nut washer and a hexagonal nut. The disc spring guide rod is a three-section stepped shaft type. The diameter of the middle section of the guide rod matches the inner diameter of the disc spring sheet. The small diameter section of the guide rod has an external thread, and the large diameter section of the guide rod has an internal threaded blind hole. The disc spring sheet is fixed to the guide rod in a two-piece matching manner through a hexagonal nut and a nut washer.

[0008] As a preferred solution of the utility model, the disc spring group is arranged between the spring support plate and the spring pressure plate, wherein the spring pressure plate is fixed on the base and does not move, and the spring support plate applies force through the spring pull rod to drive the disc spring group to compress, and the compression position is located at the bottom. This avoids dust from entering the disc spring group and accumulating, keeps the pressure of the disc spring group stable, and increases the service life.

[0009] As a preferred solution of the utility model, the safety pin is an integrated structure, and its main part is a solid stepped shaft, which makes the safety pin have a longer service life and higher strength. The safety pin is inserted from the side, so that the safety pin is not easy to fall off during the operation of the mechanism.

[0010] Compared with the prior art, the slide plate of the utility model is provided with a tightening device, the spring assembly is placed inside the base, the spring compression position is located at the bottom, and the integrated design of the safety pin is used on the side, thereby overcoming the defects of slide plate movement, dust accumulation of disc spring assembly, and disc spring assembly being close to the heat radiation source, extending the practical life of the safety pin, improving safety and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram (exploded diagram) of the novel practical mechanism;

[0012] Figure 2 yes Figure 1 Structural diagram of 1 (exploded diagram);

[0013] Figure 3 yes Figure 2 Partial cutaway view of the spring;

[0014] Figure 4 It is the compression diagram of the spring under working condition;

[0015] Figure 5 yes Figure 2Schematic diagram of the structure of the middle piece 1-1;

[0016] Figure 6 yes Figure 2 Schematic diagram of the structure of middle parts 1-5;

[0017] Figure 7 yes Figure 2 Schematic diagram of the structure of middle parts 1-6;

[0018] Figure 8 yes Figure 2 The schematic diagram of the structure of the middle part 1-7;

[0019] Fig. 9 yes Figure 2 Schematic diagram of the structure of middle piece 1-2;

[0020] Fig.10 yes Figure 2 Schematic diagram of the structure of middle parts 1-3;

[0021] Fig.11 yes Figure 2 Schematic diagram of the structure of middle parts 1-4;

[0022] Fig.12 yes Figure 1 Structural diagram of the 3 parts (exploded diagram);

[0023] Fig.13 yes Fig.12 The structural diagram of the middle component 3-1;

[0024] Fig.14 yes Figure 1 Structural diagram of the 4 parts (exploded diagram);

[0025] Fig.15 yes Fig.14 The structural diagram of the middle component 4-1;

[0026] Fig.16 yes Fig.14 The structural diagram of the middle component 4-2;

[0027] Fig.17 yes Fig.14 The structural diagram of the middle component 4-3;

[0028] Fig.18 This is a schematic diagram of the use of item 4-2 and item 4-3 together;

[0029] Fig.19 yes Figure 1 Structural diagram of part 5 (exploded diagram);

[0030] Fig. 20 is a schematic diagram of the refractory assembly (exploded view);

[0031] Fig.21 It is a comparison file picture (showing that there is no slide plate to push tight);

[0032] Fig. 22 is the comparative document diagram (showing the spring located in the bracket);

[0033] Fig.23 is a comparison file diagram (showing the spring compression position at the top in the working state);

[0034] Fig.24 is a comparison document picture (showing the safety pin facing downwards in the working state);

[0035] In the figure: base assembly 1, bracket assembly 2, slider assembly 3, drive assembly 4, refractory material assembly 5, base 1-1, cam cover plate 1-2, cam 1-3, upper tightening plate 1-4, pressure plate 1-5, disc spring group 1-6, spring support plate 1-7, slider 3-1, lower tightening plate 3-2, hydraulic cylinder support seat 4-1, connecting rod 4-2, safety pin 4-3, upper water inlet 5-1, upper slide plate 5-2, lower slide plate 5-3, lower water inlet 5-4. The base assembly 1 includes a base 1-1, a cam cover plate 1-2, a cam 1-3, an upper tightening plate 1-4, a pressure plate 1-5, a disc spring group 1-6 and a spring support plate 1-7, and the refractory material assembly 5 includes an upper water inlet 5-1, an upper slide plate 5-2, a lower slide plate 5-3 and a lower water inlet 5-4. DETAILED DESCRIPTION

[0036] As shown in the figure, the ladle sliding water nozzle device is composed of a base assembly 1, a bracket assembly 2, a slider assembly 3, a driving assembly 4 and a refractory material assembly 5. The base assembly 1 is composed of a base 1-1, an upper tightening plate 1-4 and a lower tightening plate 3-2. A cam 1-3 is installed on one side of the upper tightening plate 1-4 through a cam cover plate 1-2. The cam 1-3 has a hexagonal prism axially matched with the inner hexagonal wrench. The inner hexagonal wrench is placed on the above-mentioned hexagonal prism and the cam 1-3 is rotated by pulling the inner hexagonal wrench, thereby driving the upper tightening plate 1-4 to move up and down, thereby realizing the tightening and loosening of the upper slide plate 5-2 and the lower slide plate 5-3.

[0037] The disc spring assembly 1-6 is placed inside the base 1-1.

[0038] The disc spring group 1-6 is composed of a disc spring sheet, a disc spring guide rod, a nut washer and a hexagonal nut. The disc spring guide rod is a three-section stepped shaft type. The diameter of the middle section of the guide rod matches the inner diameter of the disc spring sheet. The small diameter section of the guide rod has an external thread, and the large diameter section of the guide rod has an internal threaded blind hole. The disc spring sheet is fixed to the guide rod in a two-piece matching manner through a hexagonal nut and a nut washer.

[0039] The disc spring group 1-6 is arranged between the spring support plate 1-7 and the spring pressure plate 1-5, wherein the spring pressure plate 1-5 is fixed on the base and does not move. The spring support plate 1-7 applies force through the spring pull rod to drive the disc spring group 1-6 to be compressed, and the compressed position is located at the bottom.

[0040] The safety pin 4-3 is an integrated structure, the main part of which is a solid stepped shaft, and the insertion direction of the safety pin 4-3 is from the side.

Claims

1. A ladle sliding nozzle device, comprising a base assembly (1), a bracket assembly (2), a slider assembly (3), a drive assembly (4) and a refractory material assembly (5), characterized in that: The base assembly (1) is composed of a base (1-1), an upper tightening plate (1-4), a cam cover plate (1-2) and a cam (1-3). A cam (1-3) is installed on one side of the upper tightening plate (1-4) through the cam cover plate (1-2). The cam (1-3) has a hexagonal prism axially matched with an inner hexagonal wrench. The inner hexagonal wrench is placed on the above-mentioned hexagonal prism and the cam (1-3) is rotated by turning the inner hexagonal wrench, thereby driving the upper tightening plate (1-4) to move up and down, thereby realizing the tightening and loosening of the upper slide plate (5-2) and the lower slide plate (5-3).

2. The ladle sliding nozzle device according to claim 1, characterized in that: Place the disc spring assembly (1-6) inside the base (1-1).

3. The ladle sliding nozzle device according to claim 2, characterized in that: The disc spring assembly (1-6) is composed of a disc spring sheet, a disc spring guide rod, a nut washer and a hexagonal nut. The disc spring guide rod is a three-section stepped shaft type. The diameter of the middle section of the guide rod matches the inner diameter of the disc spring sheet. The small diameter section of the guide rod has an external thread, and the large diameter section of the guide rod has an internal thread blind hole. The disc spring sheet is fixed on the guide rod in a two-piece matching manner through a hexagonal nut and a nut washer.

4. The ladle sliding nozzle device according to claim 1, characterized in that: The disc spring group (1-6) is arranged between the spring support plate (1-7) and the spring pressure plate (1-5), wherein the spring pressure plate (1-5) is fixed on the base and does not move; the spring support plate (1-7) applies force through the spring pull rod to drive the disc spring group (1-6) to be compressed, and the compressed position is located at the bottom.

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