Nozzle positioning device for continuous casting

Abstract

The utility model discloses a nozzle positioning device for continuous casting, which comprises a clamping and positioning mechanism, the clamping and positioning mechanism is fixed at the top end of a lifting mechanism, and the lifting mechanism is positioned above a base and is used for driving the clamping and positioning mechanism to move along the height direction so as to adapt to the positioning of nozzles with different heights. The tank body is clamped by the clamping and positioning mechanism, so that the water gap in the bottom of the tank body is aligned with the connecting pipe on the base to realize positioning; through the arrangement of the clamping and positioning mechanism and the lifting mechanism, the tank body can be driven to move to the center of the base by clamping the tank body from the two sides, so that the continuous casting nozzle below the tank body is aligned and overlapped with the connecting pipe, the situation that a notch is formed due to inaccurate manual pre-positioning, and molten steel leaks during casting is avoided, and meanwhile, corresponding to the casting nozzles with different heights, the production efficiency is improved. The overall height of the clamping and positioning mechanism can be adjusted through the lifting mechanism, so that the water gaps with different heights below the tank body are attached to the connecting pipe to achieve rapid positioning, and the efficiency of continuous casting work is improved.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting nozzle positioning technology, and specifically to a continuous casting nozzle positioning device. Background Technology

[0002] In the continuous casting process, precise positioning of the nozzle is a key factor in ensuring the stability and safety of molten steel casting.

[0003] In traditional continuous casting operations, nozzle positioning often relies on manual operation or simple mechanical structures, which suffers from low positioning accuracy and a large amount of manual intervention. Misalignment between the nozzle and the connecting pipe can easily lead to molten steel leakage, resulting in material waste and threatening production safety. At the same time, traditional equipment is difficult to adapt to the differences in nozzle height between different specifications of continuous casting equipment, requiring cumbersome operations such as additional shims or disassembly of parts for adaptation, which seriously affects production efficiency. In addition, the simple clamping structure is prone to ladle displacement under the impact of molten steel flow, leading to nozzle misalignment and further increasing the risk of production accidents. Utility Model Content

[0004] To address the shortcomings of existing technologies, a continuous casting nozzle positioning device is proposed, which solves the problem that the nozzle positioning device in the background technology is difficult to adapt to the differences in nozzle height of continuous casting equipment of different specifications.

[0005] To achieve the above objectives, the present invention proposes the following technologies:

[0006] A continuous casting nozzle positioning device includes a clamping and positioning mechanism, which is fixed at the top of a lifting mechanism. The lifting mechanism is located above a base and is used to drive the clamping and positioning mechanism to move along the height direction to adapt to nozzle positioning at different heights. The clamping and positioning mechanism clamps the tank body to align the nozzle at the bottom of the tank body with the connecting pipe on the base to achieve positioning.

[0007] Furthermore, the clamping and positioning mechanism includes two clamping plates arranged opposite each other, and the side of the clamping plate closest to the tank body is provided with an arc-shaped groove that matches the shape of the tank body surface.

[0008] Furthermore, a sliding plate is fixedly connected to the lower part of the clamping plate, and a positioning hole matching the bottom of the tank is opened on one side of the sliding plate. The positioning hole is coaxially arranged with the arc-shaped groove.

[0009] Furthermore, one side of each of the two sliding plates is threadedly connected to both sides of the bidirectional threaded rod, and the other side of each of the two sliding plates is slidably sleeved on the periphery of the guide rod.

[0010] Furthermore, the bidirectional threaded rod and the guide rod are parallel and spaced apart, and the positioning hole is located between the bidirectional threaded rod and the guide rod, so as to align the water inlet at the bottom of the tank with the connecting pipe on the base.

[0011] Furthermore, the lifting mechanism includes a support plate, and lifting rods and lifting screws are fixedly connected to both sides of the support plate, respectively. The support plate is lifted and lowered by a drive pair cooperating with the lifting screws.

[0012] Furthermore, the lifting mechanism also includes a first support column, and the drive pair includes a drive sleeve rotatably connected to the top of the first support column, with the lifting screw threadedly connected inside the drive sleeve.

[0013] Furthermore, a worm gear is fixedly installed on the periphery of the drive sleeve, the worm gear meshes with a worm, the worm is mounted on a rotating shaft, and the rotating shaft is rotatably mounted on a fixed plate fixed to the first support column.

[0014] Furthermore, there are two first support columns, which are symmetrically installed above the base, and the fixing plate is fixedly installed between the two first support columns.

[0015] Furthermore, the lifting mechanism also includes a second support column, and the lifting rod is slidably connected to the top of the second support column. There are two second support columns symmetrically arranged above the base.

[0016] Compared with the prior art, the comprehensive effects brought about by this utility model include:

[0017] This application uses a clamping and positioning mechanism to move the tank position so that the bottom nozzle of the continuous casting is aligned with the connecting pipe. The lifting mechanism below the clamping and positioning mechanism changes the height of the tank to accommodate continuous casting nozzles of different heights. The continuous casting nozzle positioning device provided by this application can not only move the tank to the center of the base by clamping it from both sides, so that the continuous casting nozzle at the bottom of the tank is aligned with the connecting pipe, avoiding gaps caused by inaccurate manual pre-positioning and leakage of molten steel during casting, but also adjust the overall height of the clamping and positioning mechanism according to the nozzle height of different heights, so that the nozzles at different heights below the tank can be fitted with the connecting pipe to achieve rapid positioning, thus improving the efficiency of continuous casting. Attached Figure Description

[0018] Figure 1 This is a front structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the rear structure of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the clamping and positioning mechanism according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the lifting mechanism structure according to an embodiment of the present utility model;

[0022] Figure 5 for Figure 4 A magnified structural diagram of point A in the middle.

[0023] Legend: 1. Base; 2. Connecting pipe; 3. First support column; 4. Lifting rod; 5. Support plate; 6. Clamping and positioning mechanism; 601. Drive motor; 602. Bidirectional threaded rod; 603. First sliding plate; 604. Positioning hole; 605. Second sliding plate; 606. Clamping plate; 607. Guide rod; 7. Fixing plate; 8. Lifting mechanism; 801. Fixing block; 802. Rotating shaft; 803. Rotating handle; 804. Drive sleeve; 805. Driven helical gear; 806. Lifting screw; 807. Drive helical gear. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In this document, terms such as “up,” “down,” “left,” “right,” and “top” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0026] like Figures 1 to 5 As shown, a continuous casting nozzle positioning device includes a clamping and positioning mechanism 6, which is fixed to the top of a lifting mechanism 8. The lifting mechanism 8 is located above a base 1 and is used to drive the clamping and positioning mechanism 6 to move along the height direction to adapt to nozzle positioning at different heights. The clamping and positioning mechanism 6 clamps the tank body to align the nozzle at the bottom of the tank body with the connecting pipe 2 on the base 1 to achieve positioning.

[0027] The clamping and positioning mechanism 6 moves the tank to align its bottom nozzle with the connecting pipe 2. The lifting mechanism 8 below the clamping and positioning mechanism 6 changes the height of the tank to accommodate continuous casting nozzles of different heights. The continuous casting nozzle positioning device provided in this application can not only move the tank to the center of the base 1 by clamping it from both sides, aligning the continuous casting nozzle below the tank with the connecting pipe 2, thus avoiding gaps caused by inaccurate manual pre-positioning and leakage of molten steel during casting, but also adjust the overall height of the clamping and positioning mechanism 6 through the lifting mechanism 8 to allow nozzles of different heights below the tank to fit with the connecting pipe 2 for rapid positioning, thereby improving the efficiency of continuous casting.

[0028] In the continuous casting nozzle positioning device of this embodiment, the clamping and positioning mechanism 6 includes two clamping plates 606 arranged opposite to each other. The clamping plate 606 has an arc-shaped groove matching the shape of the tank surface on the side near the tank body.

[0029] The tank is clamped from both sides by two clamping plates 606. The arc-shaped groove contacts the surface of the tank and limits the tank to keep it vertical, preventing the tank from moving during pouring and ensuring the alignment of the bottom water inlet with the connecting pipe 2.

[0030] In the continuous casting nozzle positioning device of this embodiment, a sliding plate is fixedly connected to the lower part of the clamping plate 606, and a positioning hole 604 matching the bottom of the tank is opened on one side of the sliding plate. The positioning hole 604 is coaxially arranged with the arc-shaped groove.

[0031] Specifically, the sliding plate includes a first sliding plate 603 and a second sliding plate 605. A positioning hole 604 is formed on the first sliding plate 603. When the tank needs to be positioned, the tank is placed inside the positioning hole 604. The positioning hole 604 supports the tank and achieves initial positioning. Then, the two sliding plates drive the clamping plates 606 on both sides to approach each other and clamp and position the upper middle part of the tank through the groove, thereby improving the stability of the tank and preventing displacement during casting.

[0032] In the continuous casting nozzle positioning device of this embodiment, one side of each of the two sliding plates is threadedly connected to both sides of the bidirectional threaded rod 602, and the other side of each of the two sliding plates is slidably sleeved on the periphery of the guide rod 607.

[0033] Specifically, one end of the bidirectional threaded rod 602 is connected to the output end of the drive motor 601. The drive motor 601 drives the bidirectional threaded rod 602 to rotate, thereby causing the first sliding plate 603 and the second sliding plate 605 to move relative to each other, so as to bring the clamping plate 606 closer together to clamp and position the tank.

[0034] In the continuous casting nozzle positioning device of this embodiment, the bidirectional threaded rod 602 and the guide rod 607 are parallel and spaced apart, and the positioning hole 604 is located between the bidirectional threaded rod 602 and the guide rod 607, so as to align the nozzle at the bottom of the tank with the connecting pipe 2 on the base 1.

[0035] The above settings prevent interference between the water inlet below the tank and the bidirectional threaded rod 602 or guide rod 607 when the tank is installed on the positioning hole 604, ensuring that the water inlet and the connecting pipe 2 are smoothly aligned and connected.

[0036] In the continuous casting nozzle positioning device of this embodiment, the lifting mechanism 8 includes a support plate 5. The two sides of the support plate 5 are respectively fixedly connected to a lifting rod 4 and a lifting screw 806. The support plate 5 is driven to rise and fall by cooperating with the lifting screw 806 through a drive pair.

[0037] Specifically, there are two support plates 5, located at both ends of the bidirectional threaded rod 602, to support the clamping and positioning mechanism 6, and the drive motor 601 is fixed on the outside of the support plate 5.

[0038] Preferably, the support plate 5 is L-shaped, and the lifting rod 4 and the lifting screw 806 are respectively set on both sides of the horizontal plate at the bottom of the support plate 5. The lifting screw 806 is rotated by the drive pair, thereby realizing the reciprocating motion of the lifting screw 806 in the vertical direction, so as to drive the support plate 5 to change its height and adapt to the water inlet of different lengths.

[0039] In the continuous casting nozzle positioning device of this embodiment, the lifting mechanism further includes a first support column 3, the driving pair includes a driving sleeve 804 rotatably connected to the top of the first support column 3, and the lifting screw 806 is threadedly connected inside the driving sleeve 804.

[0040] Specifically, the lifting mechanism also includes a second support column, with the lifting rod 4 slidably connected to the top of the second support column. The bottom sides of the support plate 5 are respectively supported by the first support column 3 and the second support column. The second support column limits and guides the lifting rod 4 and cooperates with the lifting screw 806 to smoothly realize the lifting of the support plate 5.

[0041] The first support column 3 is set to raise the clamping and positioning mechanism 6 to a certain initial height. The drive sleeve 804 rotates at the top of the first support column 3. Since the top of the lifting screw 806 is fixedly connected to the support plate 5, and the other end of the support plate 5 is restricted in position by being inserted into the second support column through the lifting rod 4, the lifting screw 806 moves vertically in the drive sleeve 804 to realize the lifting and lowering of the support plate 5 and the clamping and positioning mechanism 6. This is convenient to adapt to different lengths of water inlets and to facilitate the descent of the tank and water inlet to align with the connecting pipe 2.

[0042] In the continuous casting nozzle positioning device of this embodiment, a worm gear is fixedly installed on the periphery of the drive sleeve 804, the worm gear meshes with a worm, the worm is mounted on the rotating shaft 802, and the rotating shaft 802 is rotatably mounted on the fixing plate 7 fixed to the first support column 3.

[0043] Specifically, the rotating shaft 802 is set perpendicular to the lifting screw 806. On both sides of the rotating shaft 802, two drive sleeves 804 and worm wheels are respectively fitted with worms. The rotation of the rotating shaft 802 synchronously drives the worms on both sides to drive the worm wheels to rotate, thereby realizing the rotation of the drive sleeves 804, and thus realizing the lifting of the lifting screw 806 to achieve the purpose of height adjustment.

[0044] Preferably, as shown in the attached figures, in the preferred embodiment of this application, a set of meshing helical gears is used to replace the worm gear structure to achieve vertical transmission. A driving helical gear 807 is provided on the rotating shaft 802, and a driven helical gear 805 is provided on the driving sleeve 804. The above structure makes the two helical gears of appropriate size, avoiding excessive size difference between the two parts of the worm gear structure, which would affect the stability of the transmission.

[0045] Preferably, two first support columns 3 are symmetrically installed above the base 1, and a fixing plate 7 is fixedly installed between the two first support columns 3. Fixing blocks 801 are respectively provided on both sides of the top of the fixing plate 7. The two ends of the rotating shaft 802 are rotatably connected to the fixing blocks 801 on both sides, and one end of the rotating shaft 802 extends to the outside of the fixing block 801 and is fixedly connected to a rotating handle 803. By rotating the rotating handle 803, the rotating shaft 802 and the worm gear are driven to rotate, thereby driving the drive sleeve 804 to achieve the height adjustment of the support plate 5.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "rotation", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Although embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations 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 continuous casting nozzle positioning device, characterized in that, It includes a clamping and positioning mechanism, which is fixed to the top of the lifting mechanism. The lifting mechanism is located above the base and is used to drive the clamping and positioning mechanism to move along the height direction to adapt to the positioning of the water inlet at different heights. The clamping and positioning mechanism clamps the tank body to align the water inlet at the bottom of the tank body with the connecting pipe on the base to achieve positioning.

2. A nozzle positioning device for continuous casting as claimed in claim 1, wherein The clamping and positioning mechanism includes two clamping plates arranged opposite each other, and the side of the clamping plate closest to the tank body is provided with an arc-shaped groove that matches the shape of the tank body surface.

3. A nozzle positioning device for continuous casting as claimed in claim 2, wherein A sliding plate is fixedly connected to the lower part of the clamping plate. A positioning hole matching the bottom of the tank is opened on one side of the sliding plate. The positioning hole is coaxially arranged with the arc-shaped groove.

4. A nozzle positioning device for continuous casting as claimed in claim 3, wherein One side of each of the two sliding plates is threaded to both sides of the bidirectional threaded rod, and the other side of each of the two sliding plates is slidably sleeved on the periphery of the guide rod.

5. A nozzle positioning device for continuous casting as claimed in claim 4, wherein The bidirectional threaded rod and the guide rod are parallel and spaced apart. The positioning hole is located between the bidirectional threaded rod and the guide rod so that the water inlet at the bottom of the tank can be aligned with the connecting pipe on the base.

6. The nozzle positioning device for continuous casting according to claim 1, wherein The lifting mechanism includes a support plate, and lifting rods and lifting screws are fixedly connected to both sides of the support plate. The support plate is lifted and lowered by a drive pair cooperating with the lifting screws.

7. A nozzle positioning device for continuous casting as claimed in claim 6, wherein The lifting mechanism further includes a first support column, and the drive pair includes a drive sleeve rotatably connected to the top of the first support column, and the lifting screw is threadedly connected inside the drive sleeve.

8. A nozzle positioning device for continuous casting as claimed in claim 7, wherein A worm gear is fixedly installed on the periphery of the drive sleeve. The worm gear meshes with a worm. The worm is mounted on a rotating shaft, which is rotatably mounted on a fixed plate fixed to the first support column.

9. A nozzle positioning device for continuous casting as claimed in claim 8, wherein There are two first support columns, which are symmetrically installed above the base, and the fixing plate is fixedly installed between the two first support columns.

10. The nozzle positioning device for continuous casting according to claim 9, wherein The lifting mechanism also includes a second support column, and the lifting rod is slidably connected to the top of the second support column. There are two second support columns symmetrically arranged above the base.

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