Slab caster level calibration device

Abstract

The utility model relates to continuous casting machine liquid level calibration technical field, specifically is a kind of slab continuous casting machine liquid level calibration device;Including support cross plate, surface is marked with lifting rod of scale and the calibration base plate connected with it, there is also the positioning mechanism of control lifting rod lifting;Positioning mechanism is by positioning sleeve, positioning hole, positioning lever, spring and positioning chuck head constitute;Support cross plate is equipped with level bubble instrument and adjusting bolt, also has long strip through -hole cooperation sliding plate and determines height difference, positioning lever outer end is equipped with clamping block, lifting rod outer wall has annular clamping groove, when using, support cross plate and lifting rod cooperation quick determination calibration position, positioning mechanism is conveniently controlled lifting positioning, simplifies operation procedure, reduces artificial error, simultaneously, level bubble instrument and adjusting bolt auxiliary leveling, improve calibration accuracy.

Description

Technical Field

[0001] This utility model relates to the field of liquid level calibration technology for continuous casting machines, specifically a liquid level calibration device for a slab continuous casting machine. Background Technology

[0002] In the steel production industry, continuous casting is a crucial process that plays a decisive role in production efficiency and product quality. A slab continuous casting machine can directly convert molten steel into solid slabs, and its main components include a ladle turret, tundish, and crystallizer, among other important parts.

[0003] In the continuous casting production process, accurate calibration of the molten steel level in the crystallizer is a necessary operation before casting begins. Any deviation in calibration can easily lead to overflow or leakage of molten steel during casting, or cause significant fluctuations in the molten steel level, resulting in quality defects. Currently, most slab crystallizers use electromagnetic control systems to automatically manage the molten steel level. However, existing level calibration tools have many shortcomings in practical application. For example, a common tool consisting of a simulation block, support plate, and screw requires the support plate to be placed on the end face of the crystallizer, and the simulation block to be inserted into the crystallizer cavity by rotating the handle and using the screw drive. Its position is then measured with a ruler. This method is inefficient, labor-intensive for operators, and slow in calibration. The process requires repeated manual adjustment and measurement of the simulation block's position, which is not only cumbersome but also prone to inaccurate calibration due to human error. Utility Model Content

[0004] The present invention aims to solve the above problems and thus provide a liquid level calibration device for a slab continuous casting machine.

[0005] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0006] A liquid level calibration device for a slab continuous casting machine includes a support plate and a lifting rod with graduations on its surface. The bottom end of the lifting rod passes through the center of the support plate from top to bottom and is connected to a horizontal calibration base plate. A positioning mechanism for controlling the lifting of the lifting rod is provided above the support plate.

[0007] The lifting and positioning mechanism includes a positioning sleeve fitted onto the lifting rod body. The positioning sleeve has a positioning hole that communicates with the inside of the positioning sleeve. The positioning hole is in the shape of three steps, with the diameter increasing from the outside to the inside. A positioning rod is inserted into the positioning hole. A spring is fitted onto the rod body and the central section of the positioning hole. A positioning head is connected to the end of the positioning rod and is located in the inner section of the positioning hole.

[0008] Furthermore, a level bubble level is installed on the support plate on both sides of the lifting rod; this assists the operator in determining whether the device is level, and helps improve the accuracy of calibration.

[0009] Furthermore, adjusting bolts are installed at both ends of the supporting horizontal plate and near the sides; the adjusting bolts adjust the levelness of the device to further ensure the accuracy of the calibration process.

[0010] Furthermore, a vertical elongated through hole is provided on the side of the support plate near the end, and a sliding plate is slidably inserted into the elongated through hole. The sliding plate is marked with a scale, and an anti-detachment block is provided at the top of the sliding plate; after the support plate is leveled, the height difference between the top surface of the support plate and the end face of the crystallizer is determined.

[0011] Furthermore, a locking block is connected to one end of the positioning rod outside the positioning hole; this facilitates the operation of the positioning rod by the operator and makes the device more convenient to use.

[0012] Furthermore, multiple annular slots are spaced apart on the outer wall of the lifting rod. The end face of the positioning head that abuts against the lifting rod body is an inclined surface, with the inclined surface facing downwards. The annular slots on the lifting rod cooperate with the positioning head to make the positioning process smoother and enhance the stability of the positioning to a certain extent. At the same time, the downward-facing inclined surface allows the lifting rod to be adjusted upwards without the need to adjust the positioning rod.

[0013] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0014] This invention utilizes a support plate and a lifting rod with graduated markings to quickly determine the calibration position, reducing manual measurement workload and improving calibration efficiency. The positioning mechanism conveniently controls the lifting and positioning of the lifting rod, eliminating the need for repeated handle rotation and manual measurement as with traditional tools, simplifying the operation process and reducing errors caused by human operation to a certain extent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the usage state structure of an embodiment of the present utility model;

[0016] Figure 2 This is a top view of an embodiment of the present utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the lifting and positioning mechanism according to an embodiment of the present utility model;

[0018] The components in the diagram are marked as follows: 1. Support plate; 2. Lifting rod; 3. Positioning mechanism; 4. Calibration base plate; 5. Horizontal bubble meter; 6. Adjusting bolt; 7. Slide plate; 8. Crystallizer end face; 21. Annular groove; 31. Positioning hole; 32. Positioning rod; 33. Positioning head; 34. Spring; 35. Block. Detailed Implementation

[0019] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] See Figures 1-3 A liquid level calibration device for a slab continuous casting machine includes a support plate 1 and a lifting rod 2 with scales engraved on its surface. The bottom end of the lifting rod 2 passes through the center of the support plate 1 from top to bottom and is connected to a horizontal calibration base plate 4. A positioning mechanism 3 for controlling the lifting of the lifting rod 2 is provided above the support plate 1.

[0021] The lifting and positioning mechanism 3 includes a positioning sleeve fitted onto the lifting rod 2. The positioning sleeve has a positioning hole 31 that communicates with the inside of the positioning sleeve. The positioning hole 31 is in the shape of three steps, with the diameter increasing from the outside to the inside. A positioning rod 32 is inserted into the positioning hole 31. A spring 34 is fitted onto the rod of the positioning rod 32 and the central section of the positioning hole 31. A positioning head 33 is connected to the end of the positioning rod 32 and is located in the inner section of the positioning hole 31.

[0022] A level bubble meter 5 is installed on the support plate 1 and on both sides of the lifting rod 2; it helps the operator to judge whether the device is in a horizontal state and helps to improve the accuracy of calibration.

[0023] Adjusting bolts 6 are provided at both ends of the supporting horizontal plate 1 and near the sides; the adjusting bolts 6 adjust the levelness of the device to further ensure the accuracy of the calibration process.

[0024] A vertical elongated through hole is provided on the support plate 1 on one side near the end. A sliding plate 7 is slidably inserted into the elongated through hole. The sliding plate 7 is marked with a scale and an anti-detachment block is provided at the top of the sliding plate 7. After the support plate 1 is leveled, the height difference between the top surface of the support plate 1 and the end face 8 of the crystallizer is determined.

[0025] The positioning lever 32 has a locking block 35 connected to one end outside the positioning hole 31; this makes it easier for operators to operate the positioning lever 32 and makes the device more convenient to use.

[0026] Multiple annular slots 21 are spaced apart on the outer wall of the lifting rod 2. The end face of the positioning head 33 that abuts against the body of the lifting rod 2 is an inclined surface, which faces downwards. The annular slots 21 on the lifting rod 2 cooperate with the positioning head 33 to make the positioning process smoother and enhance the stability of the positioning to a certain extent. At the same time, the downward-facing inclined surface allows the lifting rod 2 to be adjusted upwards without the need to adjust the positioning head 32.

[0027] This invention utilizes a support plate and a lifting rod with graduated markings to quickly determine the calibration position, reducing manual measurement workload and improving calibration efficiency. The positioning mechanism conveniently controls the lifting and positioning of the lifting rod, eliminating the need for repeated handle rotation and manual measurement as with traditional tools, simplifying the operation process and reducing errors caused by human operation to a certain extent.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A liquid level calibration device for a slab continuous casting machine, comprising a support cross plate, characterized in that: It also includes a lifting rod with scales engraved on its surface. The bottom end of the lifting rod passes through the center of the support plate from top to bottom and is connected to a horizontal calibration base plate. A positioning mechanism for controlling the lifting of the lifting rod is set above the support plate. The lifting and positioning mechanism includes a positioning sleeve fitted onto the lifting rod body. The positioning sleeve has a positioning hole that communicates with the inside of the positioning sleeve. The positioning hole is in the shape of three steps, with the diameter increasing from the outside to the inside. A positioning rod is inserted into the positioning hole. A spring is fitted onto the rod body and the central section of the positioning hole. A positioning head is connected to the end of the positioning rod and is located in the inner section of the positioning hole.

2. The slab continuous casting machine level calibration device according to claim 1, characterized in that: A horizontal bubble meter is installed on the support plate and on both sides of the lifting rod.

3. The slab continuous casting machine level calibration device according to claim 1, characterized in that: Adjusting bolts are installed at both ends of the supporting horizontal plate, near the sides.

4. The slab continuous casting machine level calibration device according to claim 3, characterized in that: A vertical, elongated through hole is provided on one side of the support plate near the end. A sliding plate is inserted into the elongated through hole. The sliding plate is marked with scales and has an anti-detachment block at the top.

5. The slab continuous casting machine level calibration device according to claim 1, characterized in that: A locking block is connected to one end of the positioning rod located outside the positioning hole.

6. The slab continuous casting machine level calibration device according to claim 1, characterized in that: Multiple annular slots are spaced apart on the outer wall of the lifting rod. The end face of the positioning head that abuts against the lifting rod body is an inclined surface, which faces downwards.

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