Air brick steel jacket pressing and positioning device

Abstract

The utility model discloses an air brick steel sleeve pressing and positioning device which comprises a press-fitting table, a U-shaped frame is arranged at the upper end of the press-fitting table, a limiting cylinder is arranged at the upper end of the bottom of the U-shaped frame, a refractory material body is placed in the limiting cylinder, a pressing disc is arranged over the limiting cylinder, and a pressing plate is arranged on the pressing disc. The central axis of the pressing disc coincides with the central axis of the limiting cylinder, a hydraulic telescopic rod is arranged at the upper end of the pressing disc, the fixed end of the hydraulic telescopic rod is connected with the upper portion of the U-shaped frame, and an outer disc is arranged on the outer side face of the upper end of the limiting cylinder. The outer disc is provided with at least two positioning mechanisms used for centering the placement position of a refractory material body, the lower end face of the pressing disc is provided with a limiting groove, the limiting groove is formed by two circular rings concentric with the pressing disc, and the distance between the two circular rings is matched with the outer diameter of the upper end of a steel sleeve. The pressing and positioning device for the air brick steel jacket can ensure that the steel jacket is always positioned at an alignment position when being pressed on the refractory material body, so that the refractory material body is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of air-permeable brick production, in particular to a steel sleeve pressing and positioning device for air-permeable bricks. Background Art

[0002] The air brick is the most critical part in the bottom blowing argon process of off-furnace refining. After the molten steel enters the ladle, argon is blown into the molten steel through the air brick to achieve the purpose of stirring the molten steel. It can even out the temperature and chemical composition of the molten steel, promote the removal of inclusions or control the morphology of inclusions.

[0003] During the production process of breathable bricks, it is necessary to press a steel sleeve into the refractory body coated with fire clay. Since the refractory body and the steel sleeve are both conical structures, the existing hydraulic mechanism puts the steel sleeve on the upper end of the refractory body during press-fitting and then presses down. Since the steel sleeve is directly placed on the refractory body without centering, the steel sleeve tilts during the pressing process, causing damage to the refractory body, which is then scrapped, affecting the production efficiency of the breathable bricks and increasing costs. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a breathable brick steel sleeve pressing and positioning device, which can ensure that the steel sleeve is always in the correct position when pressed on the refractory body, avoid damage to the refractory body, and effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a breathable brick steel sleeve pressing and positioning device, comprising a pressing platform, a U-shaped frame is provided at the upper end of the pressing platform, a limiting cylinder is provided at the bottom upper end of the U-shaped frame, a refractory body is placed in the limiting cylinder, a pressure plate is provided directly above the limiting cylinder, the central axis of the pressure plate coincides with the central axis of the limiting cylinder, a hydraulic telescopic rod is provided at the upper end of the pressure plate, the fixed end of the hydraulic telescopic rod is connected to the upper part of the U-shaped frame, an outer disc is provided on the outer side surface of the upper end of the limiting cylinder, at least two positioning mechanisms for centering the placement position of the refractory body are provided on the outer disc, a limiting groove is provided on the lower end surface of the pressure plate, the limiting groove is formed by two circular rings concentric with the pressure plate, and the spacing between the two circular rings is adapted to the outer diameter of the upper end of the steel sleeve.

[0006] As a preferred technical solution of the utility model, the number of the positioning mechanisms is four, and the four positioning mechanisms are arranged in a cross shape on the upper end surface of the outer disc.

[0007] As a preferred technical solution of the utility model, the positioning mechanism includes a fixed block and a push rod, the fixed block is fixed to the upper end surface of the outer disc, the push rod is arranged perpendicular to the fixed block, and the push rod and the fixed block are threadedly connected.

[0008] As a preferred technical solution of the utility model, the outer side surface of the push rod is evenly distributed with scales.

[0009] As a preferred technical solution of the utility model, two guide sleeves are symmetrically arranged on the upper end surface of the outer disc, and a guide rod matched with the guide sleeve is arranged on the lower end surface of the pressure plate.

[0010] As a preferred technical solution of the utility model, the outer side surface of the inner ring and the inner side surface of the outer ring have the same taper as the inner side surface and the outer side surface of the steel sleeve respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the breathable brick steel sleeve pressing and positioning device has a compact structure and a reasonable design. A limiting cylinder is provided for placing the refractory body, and the refractory body is located at the center of the limiting cylinder through the positioning mechanism at the upper end of the limiting cylinder. A limiting groove matched with the upper end of the steel sleeve is provided at the lower end of the pressure plate, so that the central axis of the steel sleeve and the pressure plate coincide, and then the steel sleeve and the refractory body are aligned, ensuring that there will be no compression deviation during the pressing process and ensuring the pressing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is the front view of the utility model;

[0014] Figure 3 This is another structural schematic diagram of the utility model.

[0015] In the figure: 1 press table, 2 U-shaped frame, 3 limit cylinder, 4 outer disc, 5 positioning mechanism, 51 fixed block, 52 push rod, 53 scale, 6 refractory body, 7 steel sleeve, 8 pressure plate, 9 hydraulic telescopic rod, 10 guide sleeve, 11 guide rod, 12 limit groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is a schematic diagram of the present invention). Figure 2 Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0017] See also Figure 1-3The utility model provides a technical solution: a breathable brick steel sleeve pressing and positioning device, including a pressing platform 1, a U-shaped frame 2 is arranged on the upper end of the pressing platform 1, a limiting cylinder 3 is arranged on the upper end of the bottom of the U-shaped frame 2, a refractory body 6 is placed in the limiting cylinder 3, a pressure plate 8 is arranged just above the limiting cylinder 3, the central axis of the pressure plate 8 coincides with the central axis of the limiting cylinder 3, a hydraulic telescopic rod 9 is arranged on the upper end of the pressure plate 8, and the fixed end of the hydraulic telescopic rod 9 is connected to the upper part of the U-shaped frame 2, an outer disc 4 is arranged on the outer side surface of the upper end of the limiting cylinder 3, and four positioning mechanisms 5 are arranged on the outer disc 4, Four positioning mechanisms 5 are arranged in a cross shape on the upper end surface of the outer disc 4. The positioning mechanism 5 includes a fixed block 51 and a push rod 52. The fixed block 51 is fixed on the upper end surface of the outer disc 4. The push rod 52 is arranged vertically with the fixed block 51, and the push rod 52 and the fixed block 51 are threadedly connected. The position of the push rod 52 is lower than half of the height of the refractory body 6. By rotating the push rod 52, the head of the push rod 52 is in contact with the refractory body 6. Through the positioning of the four push rods 52, it is ensured that the refractory body 6 is located at the center of the limiting cylinder 3, so that the central axis of the refractory body 6 coincides with the central axis of the pressure plate 8;

[0018] A limiting groove 12 is provided on the lower end face of the pressure plate 8. The limiting groove 12 is formed by two circular rings concentric with the pressure plate 8. The spacing between the two circular rings is adapted to the upper outer diameter of the steel sleeve 7. Since the limiting groove 12 is concentric with the pressure plate 8, the limiting groove 12 and the upper end face of the steel sleeve 7 are limited in a circle, so that the central axes of the steel sleeve 7 and the pressure plate 8 coincide with each other, and then the central axes of the refractory body 6 and the pressure plate 8 coincide with each other, ensuring that the pressing process will not be skewed.

[0019] In order to facilitate workers to determine that the extended length of the push rod 52 is the same, the outer side of the push rod 52 is evenly distributed with scales 53. According to the scales on the fixed block 51 corresponding to the push rod 52, the ejection length of the push rod 52 can be quickly adjusted, and the refractory body 6 can be quickly confirmed to be located at the center position of the limit tube 3.

[0020] In order to ensure the linearity of the extension and retraction of the hydraulic telescopic rod 9 , two guide sleeves 10 are symmetrically arranged on the upper end surface of the outer disc 4 , and a guide rod 11 matched with the guide sleeves 10 is arranged on the lower end surface of the pressure plate 8 .

[0021] Furthermore, in order to better fit the limiting groove 12 with the upper end of the steel sleeve 7, the outer side surface of the inner ring and the inner side surface of the outer ring have the same taper as the inner side surface and the outer side surface of the steel sleeve 7 respectively.

[0022] During use: evenly smear fire mud on the surface of the refractory body 6 and place it in the limiting cylinder 3. Rotate the four push rods 52 to contact the surface of the refractory body 6 until the scales 53 on the surfaces of the four push rods 52 are consistent with the position of the fixed block 51, indicating that the refractory body 6 is located at the center position of the limiting cylinder 3. Then put the upper end of the steel sleeve 7 into the limiting groove 12 at the lower end of the pressure plate 8. At this time, the central axis of the steel sleeve 7 coincides with the central axis of the refractory body 6. Hold the outer side of the steel sleeve 7 and turn on the hydraulic telescopic rod 9 to control the downward movement of the pressure plate 8. At this time, the guide rod 11 extends into the guide sleeve 10, and the lower end of the steel sleeve 7 begins to contact the upper end of the refractory body 6. The steel sleeve 7 continues to be pressed down. When the steel sleeve 7 is pressed into the refractory body 6 for more than half, retract the push rod 52 until the steel sleeve 7 is completely pressed on the outer side of the refractory body 6.

[0023] The utility model can ensure that the steel sleeve 7 is aligned with the refractory body 6 when the steel sleeve 7 is pressed down to the outer side of the refractory body 6, avoid the steel sleeve 7 from being skewed during the pressing process, prevent the refractory body 6 from being damaged, and improve production efficiency.

[0024] 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 breathable brick steel sleeve pressing and positioning device, comprising a pressing platform (1), characterized in that: A U-shaped frame (2) is arranged at the upper end of the press-fitting table (1), a limiting cylinder (3) is arranged at the upper end of the bottom of the U-shaped frame (2), a refractory body (6) is placed in the limiting cylinder (3), a pressure plate (8) is arranged directly above the limiting cylinder (3), the central axis of the pressure plate (8) coincides with the central axis of the limiting cylinder (3), a hydraulic telescopic rod (9) is arranged at the upper end of the pressure plate (8), the fixed end of the hydraulic telescopic rod (9) is connected to the upper part of the U-shaped frame (2), an outer disc (4) is arranged on the outer side surface of the upper end of the limiting cylinder (3), at least two positioning mechanisms (5) for centering the placement position of the refractory body (6) are arranged on the outer disc (4), a limiting groove (12) is arranged on the lower end surface of the pressure plate (8), the limiting groove (12) is formed by two circular rings concentric with the pressure plate (8), and the spacing between the two circular rings is adapted to the outer diameter of the upper end of the steel sleeve (7).

2. The air-permeable brick steel sleeve pressing and positioning device according to claim 1 is characterized in that: The number of the positioning mechanisms (5) is four, and the four positioning mechanisms (5) are arranged in a cross shape on the upper end surface of the outer disc (4).

3. A breathable brick steel sleeve pressing and positioning device according to claim 1 or 2, characterized in that: The positioning mechanism (5) comprises a fixed block (51) and a push rod (52), wherein the fixed block (51) is fixed on the upper end surface of the outer disc (4), and the push rod (52) is arranged perpendicular to the fixed block (51), and the push rod (52) and the fixed block (51) are threadedly connected.

4. The air-permeable brick steel sleeve pressing and positioning device according to claim 3 is characterized in that: The outer side surface of the push rod (52) is evenly distributed with scales (53).

5. The air-permeable brick steel sleeve pressing and positioning device according to claim 1 is characterized in that: Two guide sleeves (10) are symmetrically arranged on the upper end surface of the outer disc (4), and a guide rod (11) matched with the guide sleeves (10) is arranged on the lower end surface of the pressure plate (8).

6. The air-permeable brick steel sleeve pressing and positioning device according to claim 1 is characterized in that: The outer side surface of the circular ring located inside and the inner side surface of the circular ring located outside have the same taper as the inner side surface and the outer side surface of the steel sleeve (7).

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