A high-precision converter lining thickness measuring device

Abstract

This utility model relates to the field of furnace lining thickness measurement technology, and provides a high-precision converter furnace lining thickness measurement device, including a first gripping component and a second gripping component; the first gripping component includes a first pull rod, one end of which is fixedly connected to a protrusion, and one side of the protrusion is fixedly connected to a limiting plate, the inner side of which is provided with symmetrically arranged storage grooves. The beneficial effect of this utility model is that when the operator pulls the second pull rod, the second pull rod drives the top block at one end to move, and the outer wall of the top block can generate a uniform lateral extrusion force on the two wedges, pushing the wedges to drive the top rod to slide and unfold along the through groove of the limiting plate. This linear extrusion expansion method does not rely on the traditional cross structure, is not constrained by the angle of the narrow space at the bottom, and the top rod can smoothly extend into the bottom of the inner lining with the tool, and can be flexibly adjusted to a state of completely fitting the bottom furnace lining surface, ensuring contact stability during measurement and avoiding the problem of insufficient unfolding due to space limitations.

Description

Technical Field

[0001] This utility model relates to the field of furnace lining thickness measurement technology, specifically a high-precision converter furnace lining thickness measurement device. Background Technology

[0002] During the operation and maintenance of converter smelting, the detection of the remaining thickness of the furnace lining is a key link in ensuring production safety and formulating maintenance plans. Existing specialized tools for measuring the furnace lining are mostly designed based on the principle of trigonometric geometry. They calculate the furnace lining thickness by cross-expansion and observing the expansion amount. These tools have a simple structure and are easy to operate, providing basic data support for measuring the erosion thickness of the furnace lining bricks in various parts of the converter, and are suitable for the daily thickness measurement needs of the converter.

[0003] However, when actually measuring the converter lining, for the specific area of ​​the inner lining, the tools are mostly used in a cross-shaped manner. This structure limits the range of the unfolding angle and the path into the furnace. The space in the inner lining of the converter is relatively small, and the tool needs to be inserted downwards from the furnace opening during measurement. When adjusting the cross-shaped structure to fit the bottom surface of the furnace lining, it is easily restricted by the narrow space at the bottom, resulting in insufficient unfolding of the measuring rod or unstable contact with the furnace lining surface, making the measurement operation of the inner lining thickness inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision converter lining thickness measuring device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision converter lining thickness measuring device, comprising a first gripping component and a second gripping component;

[0006] The first gripping component includes a first pull rod, one end of which is fixedly connected to a protrusion, and one side of the protrusion is fixedly connected to a limiting plate. The limiting plate has symmetrically arranged storage slots on its inner side, and the limiting plate has a through slot corresponding to the storage slot.

[0007] A push rod is slidably connected in the through groove. A return spring is sleeved on the outer wall of the push rod. A wedge block is fixedly connected to one end of the push rod that is close to each other. One end of the return spring is fixedly connected to the wedge block, and the other end of the return spring is fixedly connected to the inner wall of the storage groove. A limit block is fixedly connected in the middle of the first pull rod. A measuring ruler is fixedly installed at the end of the first pull rod away from the protrusion.

[0008] The second gripping assembly includes a second pull rod slidably connected to the limiting block, a top block fixedly connected to one end of the second pull rod, the outer wall of the top block being in contact with the wedge block, and a reference ruler fixedly connected to the other end of the second pull rod.

[0009] Preferably, the outer wall of the second pull rod has an integrally extended protrusion, and the protrusion is slidably connected to the limiting block.

[0010] Preferably, the top block has a V-shaped structure, and the sharp corners of the V-shape are rounded. The inclined surfaces on both sides of the V-shape can convert the pulling force of the second pull rod into the lateral compressive force on the two wedges, achieving a double push with a single force by utilizing the inclined surface force component.

[0011] Preferably, the limiting plate has a rectangular structure with rounded corners, and the diameter of the receiving groove is smaller than the width of the wedge. The rectangular limiting plate can effectively contact and limit the top rod, and the rounded corners reduce the risk of scraping when tools are inserted into the furnace opening or come into contact with the furnace lining by reducing sharp edges.

[0012] Preferably, the top rod has a circular cross-section, and the end of the top rod away from the wedge has an arc-shaped chamfer.

[0013] Preferably, the reference ruler is fixedly connected to the second pull rod at a 90-degree angle, and the measuring ruler is axially aligned with the first pull rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the operator pulls the second pull rod, the second pull rod drives the top block at one end to move. The outer wall of the top block can generate a uniform lateral extrusion force on the two wedges, pushing the wedges to drive the top rod to slide and unfold along the through groove of the limiting plate. This linear extrusion expansion method does not rely on the traditional cross structure and is not constrained by the angle of the narrow space at the bottom. The top rod can smoothly extend into the inner lining with the tool and can be flexibly adjusted to be completely in contact with the bottom furnace lining surface, ensuring contact stability during measurement and avoiding the problem of insufficient unfolding due to space limitations. In addition, during the rising process, the top block can move its own structure upward to reserve more space for the top rod, further ensuring the smoothness of the top rod unfolding. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting plate structure of this utility model.

[0018] In the diagram: 1. First pull rod; 2. Protrusion; 3. Limiting plate; 4. Storage groove; 5. Through groove; 6. Top rod; 7. Return spring; 8. Wedge block; 9. Limiting block; 10. Measuring ruler; 11. Second pull rod; 12. Top block; 13. Reference ruler; 14. Protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 The present invention provides the following technical solution:

[0021] A high-precision converter lining thickness measuring device includes a first gripping assembly and a second gripping assembly. The first gripping assembly includes a first pull rod 1, with a protrusion 2 fixedly connected to one end of the first pull rod 1. A limiting plate 3 is fixedly connected to one side of the protrusion 2. A symmetrically arranged receiving groove 4 is opened on the inner side of the limiting plate 3, and a through groove 5 is opened on the limiting plate 3 corresponding to the receiving groove 4. A top rod 6 is slidably connected in the through groove 5. A return spring 7 is sleeved on the outer wall of the top rod 6. A wedge block 8 is fixedly connected to one end of the top rod 6 that is close to each other. One end of the return spring 7 is fixedly connected to the wedge block 8, and the other end of the return spring 7 is fixedly connected to the inner wall of the receiving groove 4. A limiting block 9 is fixedly connected to the middle of the first pull rod 1, and a measuring ruler 10 is fixedly installed at the end of the first pull rod 1 away from the protrusion 2. The second gripping assembly includes a second pull rod 11 slidably connected to the limiting block 9. A top block 12 is fixedly connected to one end of the second pull rod 11, and the outer wall of the top block 12 is in contact with the wedge block 8. A reference ruler 13 is fixedly connected to the other end of the second pull rod 11.

[0022] The outer wall of the second pull rod 11 has an integrally extended protrusion 14, and the protrusion 14 is slidably connected to the limiting block 9. The top block 12 has a V-shaped structure, and the sharp corner of the V-shaped structure is rounded. The limiting plate 3 has a rectangular structure, and the corners are smoothly rounded. The diameter of the storage groove 4 is smaller than the width of the wedge block 8. The cross-section of the top rod 6 is circular, and the end of the top rod 6 away from the wedge block 8 is provided with an arc-shaped chamfer. The reference ruler 13 is fixedly connected to the second pull rod 11 at a 90-degree angle. The measuring ruler 10 is axially aligned with the first pull rod 1.

[0023] When using this high-precision converter lining thickness measuring device, the operator first holds the first pull rod 1 with the left hand and the second pull rod 11 with the right hand, and faces the limiting plate 3 toward the area to be measured in the converter lining. The position and angle of the device are slowly adjusted so that the end of the top rod 6 away from the wedge block 8 is completely in contact with the surface of the lining. At this time, the first pull rod 1 drives the limiting plate 3 to remain stable through the fixed connection with the protrusion 2, providing a stable reference for subsequent thickness measurement operations.

[0024] After the top rod 6 is in place with the furnace lining surface, the operator keeps the first pull rod 1 still with their left hand and pulls the second pull rod 11 away from the limiting plate 3 with their right hand. The protrusion 14 extending integrally from the outer wall of the second pull rod 11 slides synchronously within the limiting block 9. The sliding cooperation between the protrusion 14 and the limiting block 9 provides guidance and constraint for the second pull rod 11, preventing lateral deviation during its pulling process. As the second pull rod 11 is pulled, the top block 12, which is fixedly connected to the end near the limiting plate 3, moves synchronously away from the limiting plate 3. Because the top block 12 has a V-shaped structure and a rounded transition at the sharp corner, its outer wall is always in close contact with the two wedges 8. During the movement of the top block 12, the inclined surface of the V-shaped structure will generate a uniform compressive force on the two wedges 8 to both sides, thereby pushing the wedges 8 to move away from the axis of the second pull rod 11.

[0025] When the wedge 8 moves, it will cause the top rod 6, which is fixedly connected to the end away from the top block 12, to slide in the through groove 5 of the limiting plate 3. During the sliding process, the top rod 6 simultaneously squeezes the return spring 7 sleeved on its outer wall. The receiving groove 4 provides a compression and accommodation space for the return spring 7. During this process, the end of the top rod 6 away from the wedge 8 is always in close contact with the furnace lining surface. As the right hand continues to pull the second pull rod 11, the squeezing force of the top block 12 on the wedge 8 gradually increases, and the sliding range of the top rod 6 in the through groove 5 increases synchronously until the top block 12 moves to the limit position and can no longer pull the second pull rod 11. At this time, the device reaches the stable state required for thickness measurement.

[0026] The operator then observes the reference ruler 13 fixedly connected to the end of the second pull rod 11 away from the top block 12. After the reference ruler 13 moves with the second pull rod 11, its edge corresponds to the measuring ruler 10 fixedly installed at the end of the first pull rod 1 away from the protrusion 2. Because the measuring ruler 10 is axially attached to the first pull rod 1, the scale reading is more intuitive. By using the value corresponding to the reference ruler 13 on the measuring ruler 10, the actual thickness of the converter lining can be accurately obtained.

[0027] After the measurement is completed, the operator releases the pulling force of the right hand on the second pull rod 11. The compressed return spring 7 releases its elastic potential energy, pushing the wedge block 8 to move towards the axis of the second pull rod 11. When the wedge block 8 moves, it drives the top block 12 to move towards the limiting plate 3 through its contact with the top block 12. The top block 12 then pulls the second pull rod 11 and the protrusion 14 to slide back in opposite directions within the limiting block 9. The reference ruler 13 returns to its initial position with the second pull rod 11, and the top rod 6 also returns to its initial state with the wedge block 8. The device completes the overall reset and can be used for the next converter lining thickness measurement operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision converter lining thickness measuring device, characterized by: Includes a first gripping component and a second gripping component; The first gripping component includes a first pull rod (1), one end of which is fixedly connected to a protrusion (2), and a limiting plate (3) is fixedly connected to one side of the protrusion (2). A symmetrically arranged storage groove (4) is opened on the inner side of the limiting plate (3), and a through groove (5) is opened on the limiting plate (3) corresponding to the storage groove (4). A push rod (6) is slidably connected in the through groove (5). A return spring (7) is sleeved on the outer wall of the push rod (6). A wedge block (8) is fixedly connected to one end of the push rod (6) that is close to each other. One end of the return spring (7) is fixedly connected to the wedge block (8). The other end of the return spring (7) is fixedly connected to the inner wall of the storage groove (4). A limit block (9) is fixedly connected in the middle of the first pull rod (1). A measuring ruler (10) is fixedly installed at the end of the first pull rod (1) away from the protrusion (2). The second gripping assembly includes a second pull rod (11) slidably connected to the limiting block (9), a top block (12) is fixedly connected to one end of the second pull rod (11), the outer wall of the top block (12) is in contact with the wedge block (8), and a reference ruler (13) is fixedly connected to the other end of the second pull rod (11).

2. The high-precision converter lining thickness measuring device according to claim 1, characterized in that: The outer wall of the second pull rod (11) has an integrally extended protrusion (14), and the protrusion (14) is slidably connected to the limiting block (9).

3. The high-precision converter lining thickness measuring device according to claim 1, characterized in that: The top block (12) has a V-shaped structure, and the sharp corners of the V-shaped structure are rounded.

4. The high-precision converter lining thickness measuring device according to claim 1, characterized in that: The limiting plate (3) has a rectangular structure and rounded corners. The diameter of the storage groove (4) is smaller than the width of the wedge (8).

5. The high-precision converter lining thickness measuring device according to claim 1, characterized in that: The top rod (6) has a circular cross-section, and the end of the top rod (6) away from the wedge (8) is provided with an arc-shaped chamfer.

6. The high-precision converter lining thickness measuring device according to claim 1, characterized in that: The reference ruler (13) is fixedly connected to the second pull rod (11) at a 90-degree angle, and the measuring ruler (10) is axially attached to the first pull rod (1).

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