Adaptive centering device for foot roller of steel crystallizer

Abstract

The utility model discloses a steel crystallizer foot roller adaptive centering device, which relates to the technical field of centering devices, and comprises a centering component, the centering component comprises a support seat and four arc-shaped plates arranged on the upper surface of the support seat in a circumferential array, a rectangular cavity is formed in the support seat, and a plurality of arc-shaped plates are arranged in the rectangular cavity. The centering assembly further comprises a first motor which is fixedly arranged on the lower surface of the supporting base and used for driving the four arc-shaped plates to move towards the periphery or the middle at the same time. And the driving assembly comprises a moving seat arranged at the bottom of the supporting seat. According to the adaptive centering device for the foot roller of the steel crystallizer, the centering assembly is arranged, so that the outer surfaces of the four arc-shaped plates can abut against the foot roller body and the inner wall of the steel crystallizer at the same time in the actual use process of the adaptive centering device; at the moment, the foot roller body coincides with the central axis formed by the inner wall of the steel crystallizer and the four arc-shaped plates, and the purpose that the foot roller body and the central axis of the steel crystallizer are rapidly and accurately centered is achieved.

Description

Technical Field

[0001] This utility model relates to the field of centering device technology, and in particular to a centering device for steel crystallizer foot rollers. Background Technology

[0002] The steel crystallizer foot rolls are an important component of the continuous casting machine, mainly used to support and guide the casting stream from the crystallizer. Foot rolls are divided into wide-face foot rolls and narrow-face foot rolls, installed at the bottom of the crystallizer to ensure the billet has a regular shape and size, increase casting speed, and prevent the billet from becoming misshapen.

[0003] Currently, existing steel crystallizer foot rollers are typically installed by bolting them to the bottom of the crystallizer. After installation, their position and angle are adjusted using adjusting blocks to align the central axis of the foot roller with the central axis of the crystallizer. However, this adjustment relies solely on human experience and visual observation, leading to discrepancies between the adjusted central axis of the foot roller and the crystallizer, thus affecting the quality of the finished product. Therefore, this application proposes a steel crystallizer foot roller alignment device. Utility Model Content

[0004] This utility model discloses a steel crystallizer foot roller adaptive centering device, which aims to solve the technical problem mentioned in the background art of the inability to quickly center the foot roller and the steel crystallizer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The steel crystallizer foot roller alignment device includes:

[0007] The centering assembly is used to align the central axis of the foot roller body with the central axis of the steel crystallizer. The centering assembly includes a support base and four arc-shaped plates arranged in a circumferential array on the upper surface of the support base. The four arc-shaped plates abut against the inner wall of the foot roller body. The support base has a rectangular cavity inside. The centering assembly also includes a first motor fixed to the lower surface of the support base for driving the four arc-shaped plates to move simultaneously outward or towards the center.

[0008] A drive assembly for driving four arc-shaped plates into the interior of a steel crystallizer. The drive assembly includes a movable seat disposed at the bottom of a support base. The movable seat has an annular cavity inside, and four sleeves extending to the upper surface of the movable seat are fixedly arranged in a circumferential array on the inner top wall of the annular cavity. Internally threaded cylinders are slidably disposed on the inner wall of the sleeves. The top ends of the four internally threaded cylinders are fixedly connected to the lower surface of the support base. The drive assembly also includes a second motor fixed on the upper surface of the movable seat for driving the four internally threaded cylinders to rise and fall simultaneously.

[0009] In a preferred embodiment, the upper surface of the support base has four rectangular grooves arranged in a circumferential array, and each of the four rectangular grooves has an L-shaped slider slidably mounted on its inner wall. The four arc-shaped plates are respectively fixed to the ends of the four L-shaped sliders.

[0010] By setting an L-shaped slider, the movement of the L-shaped slider can drive the arc plate to move.

[0011] In a preferred embodiment, the inner wall of the rectangular groove is rotatably provided with a lead screw extending into the rectangular cavity, and the surface of the L-shaped slider is provided with a threaded hole that is threadedly connected to the outer surface of the lead screw.

[0012] By setting a lead screw, the L-shaped slider can be moved automatically through the rotation of the lead screw.

[0013] In a preferred embodiment, the output end of the first motor is fixed with a driving bevel gear, and the ends of the four lead screws are all fixed with driven bevel gears, and the four driven bevel gears mesh with the driving bevel gears.

[0014] By setting up driving bevel gears and driven bevel gears, the rotation of the first motor can drive the four lead screws to rotate simultaneously.

[0015] In a preferred embodiment, four support columns are fixedly arranged in a circumferential array on the upper surface of the support base, and the tops of the four support columns overlap with the lower surface of the foot roller body.

[0016] By setting up support columns, it is easy to support and place the foot roller body.

[0017] In a preferred embodiment, the inner bottom wall of the annular cavity is provided with threaded posts in a circumferential array, corresponding to the internal threaded cylinder, and the outer surface of the threaded posts is threadedly connected to the inner wall of the internal threaded cylinder.

[0018] By setting a threaded post, the rotation of the threaded post can drive the internal threaded cylinder to rise and fall automatically.

[0019] In a preferred embodiment, the output end of the second motor extends into the interior of the annular cavity and is fixedly provided with a drive gear, and the outer surfaces of the four threaded pillars are all fixedly provided with driven gears, and the four driven gears mesh with the drive gear.

[0020] By setting up a driving gear plate and a driven gear plate, the rotation of the second motor can drive the four threaded cylinders to rotate simultaneously.

[0021] In a preferred embodiment, the lower surface of the movable seat is fixedly provided with four fixed posts in a circumferential array, and each of the four fixed posts has a rotating cavity at its bottom end, with a metal ball rotatably disposed on the inner wall of the rotating cavity.

[0022] By setting up metal rolling balls, the moving seat can be automatically moved as the four arc plates move outwards simultaneously, so that the central axis of the moving seat coincides with the central axis of the steel crystallizer.

[0023] As can be seen from the above, the steel crystallizer foot roller adaptive centering device provided by this utility model has the following technical effects.

[0024] Firstly, by setting up a centering component, this utility model enables the outer surfaces of the four arc-shaped plates to simultaneously abut against the foot roller body and the inner wall of the steel crystallizer during actual use. At this time, the foot roller body, the inner wall of the steel crystallizer, and the central axis formed by the four arc-shaped plates coincide, achieving the purpose of rapid and accurate centering of the foot roller body and the central axis of the steel crystallizer.

[0025] Secondly, by setting up a drive component, this utility model enables the device to rotate through the rotation of the second motor, which in turn drives the rotation of the active gear disc. The rotation of the active gear disc drives the rotation of the four driven gear discs, which in turn drives the four threaded cylinders to rotate simultaneously. The rotation of the threaded cylinders drives the inner threaded cylinder to move upward, which in turn drives the support seat to lift upward, and drives the four arc-shaped plates to automatically enter the interior of the steel crystallizer, making it easier for operators to operate. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the steel crystallizer foot roller adaptive centering device proposed in this utility model.

[0027] Figure 2 This is a top view of the support structure of the centering device for the steel crystallizer foot roller proposed in this utility model.

[0028] Figure 3 This is a cross-sectional structural schematic diagram of the steel crystallizer foot roller adaptive centering device proposed in this utility model.

[0029] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0030] Attached Figure

[0031] 100. Centering component; 101. Support base; 102. Arc plate; 103. First motor; 104. L-shaped slider; 105. Lead screw; 106. Driving bevel gear; 107. Driven bevel gear; 108. Support column;

[0032] 200. Foot roller body;

[0033] 300. Drive assembly; 301. Moving seat; 302. Sleeve; 303. Internal threaded cylinder; 304. Second motor; 305. Threaded column; 306. Drive gear plate; 307. Driven gear plate; 308. Metal ball. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Reference Figures 1 to 4 The steel crystallizer foot roller alignment device includes:

[0037] The centering assembly 100 is used to align the central axis of the foot roller body 200 with the central axis of the steel crystallizer. The centering assembly 100 includes a support base 101 and four arc-shaped plates 102 arranged in a circumferential array on the upper surface of the support base 101. The four arc-shaped plates 102 abut against the inner wall of the foot roller body 200. A rectangular cavity is opened inside the support base 101. The centering assembly 100 also includes a first motor 103 fixed on the lower surface of the support base 101 for driving the four arc-shaped plates 102 to move simultaneously to the periphery or to the center.

[0038] Reference Figure 3 and Figure 4 In a preferred embodiment, the upper surface of the support base 101 is provided with four rectangular grooves in a circumferential array, and L-shaped sliders 104 are slidably disposed on the inner walls of the four rectangular grooves. Four arc plates 102 are respectively fixed to the ends of the four L-shaped sliders 104.

[0039] Specifically, by setting an L-shaped slider 104, the movement of the L-shaped slider 104 can drive the arc plate 102 to move.

[0040] Reference Figure 3 and Figure 4 In a preferred embodiment, the inner wall of the rectangular groove is rotatably provided with a lead screw 105 extending into the rectangular cavity, and the surface of the L-shaped slider 104 is provided with a threaded hole that is threadedly connected to the outer surface of the lead screw 105.

[0041] Specifically, by setting the lead screw 105, the L-shaped slider 104 can be moved automatically by rotating the lead screw 105.

[0042] Reference Figure 3 and Figure 4 In a preferred embodiment, the output end of the first motor 103 is fixed with a driving bevel gear 106, and the ends of the four lead screws 105 are all fixed with driven bevel gears 107, and the four driven bevel gears 107 mesh with the driving bevel gear 106.

[0043] Specifically, by setting the driving bevel gear 106 and the driven bevel gear 107, the rotation of the first motor 103 can drive the four lead screws 105 to rotate simultaneously.

[0044] Reference Figure 3 and Figure 4 In a preferred embodiment, four support columns 108 are fixedly arranged in a circumferential array on the upper surface of the support base 101, and the top ends of the four support columns 108 overlap with the lower surface of the foot roller body 200.

[0045] Specifically, by setting up support columns 108, it is easy to support and place the foot roller body 200.

[0046] In this invention, by setting up a centering component 100, the device can, during actual use, fit the foot roller body 200 around the four arc-shaped plates 102 and place the foot roller body 200 on the support column 108. Then, the four arc-shaped plates 102 are inserted into the steel crystallizer from the bottom, and the first motor 103 is started. The rotation of the first motor 103 drives the active bevel gear 106 to rotate, which in turn drives the four driven bevel gears 107 to rotate simultaneously. The four lead screws 105 rotate simultaneously, and the rotation of the lead screws 105 drives the L-shaped sliders 104 to move, thereby driving the four L-shaped sliders 104 to move outwards simultaneously, which in turn drives the four arc plates 102 to move outwards simultaneously, so that the outer surfaces of the four arc plates 102 simultaneously abut against the foot roller body 200 and the inner wall of the steel crystallizer. At this time, the foot roller body 200, the inner wall of the steel crystallizer, and the central axis formed by the four arc plates 102 coincide, achieving the purpose of rapid and accurate centering of the foot roller body 200 and the central axis of the steel crystallizer.

[0047] The drive assembly 300 is used to drive four arc-shaped plates 102 into the interior of the steel crystallizer. The drive assembly 300 includes a movable seat 301 disposed at the bottom of the support base 101. The movable seat 301 has an annular cavity inside, and four sleeves 302 extending to the upper surface of the movable seat 301 are fixedly arranged in a circumferential array on the inner top wall of the annular cavity. The inner wall of the sleeves 302 is slidably provided with internal threaded cylinders 303. The top ends of the four internal threaded cylinders 303 are fixedly connected to the lower surface of the support base 101. The drive assembly 300 also includes a second motor 304 fixedly disposed on the upper surface of the movable seat 301 for driving the four internal threaded cylinders 303 to rise and fall simultaneously.

[0048] Reference Figure 3 In a preferred embodiment, the inner bottom wall of the annular cavity is provided with threaded posts 305 corresponding to the internal threaded cylinder 303 in a circumferential array, and the outer surface of the threaded posts 305 is threadedly connected to the inner wall of the internal threaded cylinder 303.

[0049] Specifically, by setting the threaded post 305, the rotation of the threaded post 305 can drive the internal threaded cylinder 303 to automatically rise and fall.

[0050] Reference Figure 3 In a preferred embodiment, the output end of the second motor 304 extends into the interior of the annular cavity and is fixedly provided with a drive gear 306, and the outer surfaces of the four threaded posts 305 are all fixedly provided with driven gear 307, and the four driven gear 307 mesh with the drive gear 306.

[0051] Specifically, by setting up an active gear plate 306 and a driven gear plate 307, the rotation of the second motor 304 can drive the four threaded pins 305 to rotate simultaneously.

[0052] Reference Figure 3 In a preferred embodiment, the lower surface of the movable seat 301 is fixedly provided with four fixed columns in a circumferential array, and the bottom end of each of the four fixed columns is provided with a rotating cavity, and a metal ball 308 is rotatably provided on the inner wall of the rotating cavity.

[0053] Specifically, by setting the metal ball 308, it can automatically drive the moving seat 301 to move as the four arc plates 102 move outward at the same time, so that the central axis of the moving seat 301 coincides with the central axis of the steel crystallizer.

[0054] In this invention, by setting up a drive assembly 300, the device can drive the active gear disk 306 to rotate through the rotation of the second motor 304 during actual use. The rotation of the active gear disk 306 drives the four driven gear disks 307 to rotate, thereby driving the four threaded columns 305 to rotate simultaneously. The rotation of the threaded columns 305 drives the inner threaded cylinder 303 to move upward, thereby driving the support base 101 to be lifted upward, and driving the four arc-shaped plates 102 to automatically enter the interior of the steel crystallizer, which is convenient for operators to operate.

[0055] Working principle: In actual use, the device can fit the foot roller body 200 around the four arc-shaped plates 102 and place the foot roller body 200 on the support column 108. Then, the four arc-shaped plates 102 are inserted into the steel crystallizer from the bottom. The rotation of the second motor 304 drives the drive gear disk 306 to rotate, which in turn drives the four driven gear disks 307 to rotate, thereby driving the four threaded columns 305 to rotate simultaneously. The rotation of the threaded columns 305 drives the inner threaded cylinder 303 to move upward, which in turn drives the support seat 101 to lift upward, causing the four arc-shaped plates 102 to automatically enter the steel crystallizer, facilitating operation by the operator. Then, the first motor is started. The rotation of the first motor 103 drives the active bevel gear 106 to rotate, which in turn drives the four driven bevel gears 107 to rotate simultaneously. This, in turn, drives the four lead screws 105 to rotate simultaneously. The rotation of the lead screws 105 drives the L-shaped sliders 104 to move, which in turn drives the four L-shaped sliders 104 to move outwards simultaneously. This, in turn, drives the four arc plates 102 to move outwards simultaneously, so that the outer surfaces of the four arc plates 102 simultaneously come into contact with the foot roller body 200 and the inner wall of the steel crystallizer. At this time, the central axis formed by the foot roller body 200, the inner wall of the steel crystallizer, and the four arc plates 102 coincides, achieving the purpose of rapid and precise alignment between the foot roller body 200 and the central axis of the steel crystallizer.

[0056] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A steel crystallizer foot roller adaptive centering device, characterized in that, include: The centering assembly (100) is used to align the central axis of the foot roller body (200) with the central axis of the steel crystallizer. The centering assembly (100) includes a support base (101) and four arc-shaped plates (102) arranged in a circular array on the upper surface of the support base (101). The four arc-shaped plates (102) abut against the inner wall of the foot roller body (200). The support base (101) has a rectangular cavity inside. The centering assembly (100) also includes a first motor (103) fixed on the lower surface of the support base (101) for driving the four arc-shaped plates (102) to move simultaneously to the periphery or to the center. A drive assembly (300) is used to drive four arc-shaped plates (102) into the interior of the steel crystallizer. The drive assembly (300) includes a movable seat (301) disposed at the bottom of the support base (101). The movable seat (301) has an annular cavity inside, and four sleeves (302) extending to the upper surface of the movable seat (301) are fixedly arranged in a circumferential array on the inner top wall of the annular cavity. The inner wall of the sleeves (302) is slidably provided with internal threaded cylinders (303). The top ends of the four internal threaded cylinders (303) are fixedly connected to the lower surface of the support base (101). The drive assembly (300) also includes a second motor (304) fixed on the upper surface of the movable seat (301) for driving the four internal threaded cylinders (303) to rise and fall simultaneously.

2. The steel crystallizer foot roller adaptive centering device according to claim 1, characterized in that, The upper surface of the support base (101) is provided with four rectangular grooves in a circular array, and the inner walls of the four rectangular grooves are slidably provided with L-shaped sliders (104). The four arc plates (102) are respectively fixed at the ends of the four L-shaped sliders (104).

3. The steel crystallizer foot roller adaptive centering device according to claim 2, characterized in that, The inner wall of the rectangular groove is rotatably provided with a lead screw (105) extending into the rectangular cavity, and the surface of the L-shaped slider (104) is provided with a threaded hole that is threadedly connected to the outer surface of the lead screw (105).

4. The steel crystallizer foot roller adaptive centering device according to claim 3, characterized in that, The output end of the first motor (103) is fixed with a driving bevel gear (106), and the ends of the four lead screws (105) are all fixed with driven bevel gears (107), and the four driven bevel gears (107) mesh with the driving bevel gears (106).

5. The steel crystallizer foot roller adaptive centering device according to claim 1, characterized in that, The upper surface of the support base (101) is fixed with four support columns (108) in a circumferential array, and the top of each of the four support columns (108) overlaps with the lower surface of the foot roller body (200).

6. The steel crystallizer foot roller adaptive centering device according to claim 1, characterized in that, The inner bottom wall of the annular cavity is provided with threaded posts (305) corresponding to the inner threaded cylinder (303) in a circumferential array, and the outer surface of the threaded posts (305) is threadedly connected to the inner wall of the inner threaded cylinder (303).

7. The steel crystallizer foot roller adaptive centering device according to claim 6, characterized in that, The output end of the second motor (304) extends into the interior of the annular cavity and is fixedly provided with a drive gear disk (306), and the outer surfaces of the four threaded columns (305) are all fixedly provided with driven gear disks (307), and the four driven gear disks (307) mesh with the drive gear disks (306).

8. The steel crystallizer foot roller adaptive centering device according to claim 1, characterized in that, The lower surface of the movable seat (301) is fixed with four fixed columns in a circumferential array, and the bottom end of each of the four fixed columns is provided with a rotating cavity. The inner wall of the rotating cavity is provided with a metal ball (308).

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