Submersed nozzle clamping chuck and clamping equipment

Abstract

The utility model relates to the technical field of metallurgical equipment, in particular to a submersed nozzle clamping chuck and clamping equipment. The clamping chuck comprises a fixing block and a clamping block, the clamping head part comprises at least two rotating fork arms, the rotating fork arms are rotationally connected with the fixed block, the rotating fork arms are symmetrically arranged at one end of the fixed block relative to the fixed block, an opening is formed between the two rotating fork arms, a clamping space is formed, and the opening degree of the clamping space is smaller than or equal to that of the submersed nozzle; and the rotary fork arm is connected with the fixed block through a clamping spring. According to the clamping chuck, a brand new solution is provided for clamping and replacing the submersed nozzle through the exquisite design, efficient performance and stable clamping effect, meanwhile, the clamping chuck can solve a series of problems that the submersed nozzle is prone to collision, low in efficiency, large in labor intensity and the like in the replacing process, and the replacement efficiency of the submersed nozzle is improved. And the working environment of a continuous casting production site is effectively improved.

Description

Technical Field

[0001] This application relates to the field of metallurgical equipment technology, and in particular to an immersion-type nozzle clamping chuck and clamping device. Background Technology

[0002] In the continuous casting process, in order to ensure the continuity of production and the stability of the quality of the continuously cast billet, it is often necessary to replace the submerged entry nozzle. However, due to the requirement of continuous production, the replacement operation needs to be both fast and stable. The key factor in the replacement operation is the clamping procedure of the submerged entry nozzle. Generally, the clamping of the submerged entry nozzle requires the cooperation of multiple people to meet the requirements of both speed and stability.

[0003] However, due to the instability and low efficiency of manual operation, the submerged entry nozzle is often damaged by bumps. The damaged or bumped entry nozzle cannot be used directly, which makes it difficult to replace the entry nozzle normally. This will seriously affect the rhythm of continuous casting production and increase the labor intensity of continuous casting production. Utility Model Content

[0004] This application provides an immersion-type sprue clamping chuck and clamping device to solve the following technical problem: how to simultaneously improve the stability and efficiency of the immersion-type sprue clamping stage.

[0005] In a first aspect, embodiments of this application provide an immersion-type sprue gripper, the gripper comprising:

[0006] Fixed block;

[0007] The clamping head includes at least two rotating fork arms, which are rotatably connected to the fixed block. The rotating fork arms are symmetrically arranged at one end of the fixed block relative to the fixed block. An opening is formed between the two rotating fork arms to form a clamping space. The opening degree of the clamping space is less than or equal to that of the immersion nozzle. The rotating fork arms are connected to the fixed block by a clamping spring.

[0008] Optionally, the rotating fork arm has a semi-circular arc surface, and two symmetrically arranged semi-circular arc surfaces form the clamping space.

[0009] Optionally, the opening size of the clamping space is 150mm to 250mm.

[0010] Optionally, the rotation angle of the rotating fork arm is 0° to 35°.

[0011] Optionally, a guide wheel is provided at the end of the rotating fork arm away from the clamping spring, and the guide wheel is rotatably connected to the rotating fork arm.

[0012] Secondly, embodiments of this application provide an immersion-type sprue gripping device, the gripping device including the gripping chuck described in the first aspect.

[0013] Optionally, the gripping device further includes:

[0014] At least two wheels, with the two wheels connected by a crossbar;

[0015] The support unit includes a fixed beam, a triangular front support, a triangular rear support, and a fixed connecting rod. The fixed beam is fixedly connected to the crossbar at both ends. The two ends of the triangular front support are fixedly connected to the fixed beam, and the two ends of the triangular rear support are fixedly connected to the fixed beam. The apex of the triangular front support and the apex of the triangular rear support are fixedly connected through the fixed connecting rod, and one end of the fixed connecting rod is fixedly connected to the fixed block.

[0016] Optionally, the included angle of the triangular front bracket is 35° to 45°.

[0017] Optionally, the included angle of the triangular rear bracket is 25° to 35°.

[0018] Optionally, the bracket portion further includes a handle, which is fixedly connected to the other end of the fixing link.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] This application provides an immersion sprue gripper. The gripper head is fixed by a fixing block, and a gripper head with rotating forks and clamping springs is used. The rotating forks are rotatably connected to the fixing block. The extension and retraction of the clamping springs control the rotation of the rotating forks around the fixing block, thus controlling the size of the opening between the two rotating forks and consequently the size of the clamping space. When the opening of the clamping space is less than or equal to that of the immersion sprue, the two rotating forks can clamp the pipe sidewall of the immersion sprue. Simultaneously, the clamping springs are compressed, generating an elastic force with a tendency to extend. Under the action of this elastic force, the rotating forks can be pressed tightly against the pipe sidewall of the immersion sprue, achieving stable clamping of the immersion sprue. Furthermore, this clamping process only requires the linkage of the clamping springs, rotating forks, and fixing block, thereby improving the efficiency of immersion sprue gripping. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an immersion-type sprue gripper provided in an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of an immersion-type sprue clamping device provided in an embodiment of this application;

[0025] Among them, 1-fixed block, 2-clamping head, 201-rotating fork arm, 211-semi-circular arc surface, 202-clamping spring, 203-guide wheel, 3-wheel, 4-bracket part, 401-fixed beam, 402-triangular front bracket, 403-triangular rear bracket, 404-fixed connecting rod, 405-handle, 5-crossbar. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Various embodiments of this application may exist in the form of a range; it should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a hard limitation on the scope of this application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within that range; for example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range; in addition, whenever a numerical range is indicated herein, it means including any referenced number (fraction or integer) within the indicated range.

[0028] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, or a magnetic connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean 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.

[0030] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this article can be purchased from the market or prepared by existing methods.

[0031] Figure 1 An exemplary schematic diagram of an immersion-type sprue gripper provided in an embodiment of this application is shown;

[0032] like Figure 1 As shown in the figure, this application embodiment provides an immersion-type sprue gripper, the gripper comprising:

[0033] Fixed block 1;

[0034] The clamping head 2 includes at least two rotating fork arms 201, which are rotatably connected to the fixed block 1. The rotating fork arms 201 are symmetrically arranged at one end of the fixed block 1 relative to the fixed block 1, and an opening is formed between the two rotating fork arms 201 to form a clamping space. The rotating fork arms 201 and the fixed block 1 are connected by a clamping spring 202.

[0035] It should be noted that the material of the rotating fork arm 201 can be flexible or rigid, but it needs to withstand the high temperature environment of the continuous casting process. In addition, the clamping spring 202 is in a non-stretching natural state when the rotating fork arm 201 is relatively closed, and can have good rebound force when the rotating fork arm 201 clamps the submersible nozzle. The elastic coefficient of the clamping spring 202 can be adaptively designed according to the size and weight of the submersible nozzle.

[0036] It should be noted that the immersion gate gripper provided in this application embodiment is ingeniously and efficiently designed, achieving stable gripping and rapid removal of immersion gates through a series of mechanical linkages. Specifically:

[0037] The core structure of this gripper includes a fixed block 1, a gripper head 2, and a clamping spring 202 and a rotating fork arm 201 connecting the two. The fixed block 1 serves as the supporting foundation for the entire gripper, stably supporting the gripper head 2 and its related components. The gripper head 2 is designed with at least two rotating fork arms 201, which are symmetrically arranged relative to the fixed block 1 and connected to it via a rotatable connection. This design allows the rotating fork arms 201 to rotate flexibly around the fixed block 1, thereby controlling the size of the opening between the two rotating fork arms 201 and adjusting the size of the gripping space.

[0038] When it is necessary to clamp the submersible nozzle, the operator only needs to bring the clamping head close to the pipe side wall of the nozzle. Relying on the force between the submersible nozzle and the rotating fork arm 201, the opening of the rotating fork arm 201 is adaptively adjusted. Once the opening of the clamping space is less than or equal to the diameter of the submersible nozzle, the clamping spring 202 is compressed and generates an elastic force with a tendency to stretch. This elastic force acts on the rotating fork arm 201, allowing them to fit tightly against the pipe side wall of the submersible nozzle, achieving a stable and secure clamping effect.

[0039] It is worth mentioning that the entire clamping process only requires the linkage of the clamping spring 202, the rotating fork arm 201, and the fixing block 1, without the need for additional complex mechanisms or operating steps. This simple and efficient design not only reduces the difficulty of operation but also greatly improves the efficiency and convenience of immersion nozzle clamping. Whether in the busy environment of a steelmaking workshop or in an emergency requiring rapid nozzle replacement, this clamping chuck can complete the task quickly and accurately, providing strong support for the smooth operation of the production process.

[0040] Furthermore, the structural design of this gripper fully considers practicality and durability. The selection of the clamping spring 202 has been carefully calculated to ensure that it provides sufficient clamping force while maintaining long-term stability and reliability. The materials and manufacturing processes of the rotating fork arm 201 and the fixing block 1 have also been strictly controlled to ensure that they can withstand various challenges and tests under harsh working conditions.

[0041] In summary, the immersion nozzle clamping chuck provided in this application provides a novel solution for clamping and replacing immersion nozzles with its ingenious design, high efficiency, and stable clamping effect. Furthermore, this clamping chuck can solve a series of problems existing in the immersion nozzle replacement process, such as susceptibility to impact, low efficiency, and high labor intensity, effectively improving the working environment of the continuous casting production site.

[0042] In some alternative embodiments, the rotating fork arm 201 is provided with a semi-circular arc surface 211, and two symmetrically arranged semi-circular arc surfaces 211 form the clamping space.

[0043] In these embodiments, the rotating fork arm 201 is provided with a semi-circular arc surface 211, and two symmetrically arranged semi-circular arc surfaces 211 form a clamping space. The semi-circular arc surface 211 makes the shape of the clamping space more closely fit the circle of the immersion nozzle, thereby facilitating the operation of the rotating fork arm 201 to clamp the immersion nozzle.

[0044] It should be noted that multiple rough structures can be provided inside the semi-circular arc surface 211 to increase the friction of the rotating fork arm 201 clamping the immersion nozzle, thereby further improving the stability of the clamping process of the rotating fork arm 201.

[0045] In some alternative embodiments, the opening size of the clamping space is 150mm to 250mm.

[0046] In these embodiments, the opening size of the clamping space can be 150mm to 250mm, so that there is sufficient space between the rotating fork arms 201 to clamp the submersible nozzle, and the rotating fork arms 201 can tightly clamp the pipe sidewall of the submersible nozzle, thereby improving the stability of the rotating fork arms 201 in the process of clamping the submersible nozzle.

[0047] The opening size of the clamping space can be 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, 210mm, 220mm, 230mm, 240mm or 250mm.

[0048] It should be noted that the size of the clamping space determines the size of the immersion nozzle that the clamping head can grasp.

[0049] In some alternative embodiments, the rotation angle of the rotating fork arm 201 is 0° to 35°.

[0050] In these embodiments, the rotation angle of the rotating fork arm 201 can be 0° to 35°, so that the rotating fork arm 201 can effectively adjust the clamping position according to the different sizes of the submersible nozzles, thereby improving the stability of the rotating fork arm 201 in the process of clamping the submersible nozzles.

[0051] The rotation angle of the rotating fork 201 can be 0°, 5°, 10°, 15°, 20°, 25°, 30° or 35°.

[0052] In some alternative embodiments, the end of the rotating fork arm 201 away from the clamping spring 202 is provided with a guide wheel 203, and the guide wheel 203 is rotatably connected to the rotating fork arm 201.

[0053] In these embodiments, the end of the rotating fork arm 201 away from the clamping spring 202 may be provided with a guide wheel 203, and the guide wheel 203 is rotatably connected to the rotating fork arm 201. Through the guiding action of the guide wheel 203, the rotating fork arm 201 can open more evenly during the clamping of the submersible nozzle, and at the same time, it can increase the contact area between the rotating fork arm 201 and the submersible nozzle, improve the uniformity of the distribution of the rebound force of the clamping spring 202, thereby improving the stability of the rotating fork arm 201 in clamping the submersible nozzle.

[0054] Figure 2 An exemplary schematic diagram of an immersion-type sprue gripping device provided in an embodiment of this application is shown;

[0055] Based on a general utility model concept, such as Figure 2 As shown in the figure, this application embodiment provides an immersion-type sprue clamping device, the clamping device including the clamping chuck.

[0056] The immersion-type sprue clamping device is based on the above-mentioned clamping head. The specific structure of the clamping head can be referred to the above embodiments. Since the clamping device adopts some or all of the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0057] It should be noted that this clamping device can be used for online transport and clamping operations of cold sprues, newly baked sprues, and old sprues.

[0058] In some alternative embodiments, the gripping device further includes:

[0059] At least two wheels 3, the two wheels 3 being connected by a crossbar 5;

[0060] The support unit 4 includes a fixed beam 401, a triangular front support 402, a triangular rear support 403, and a fixed connecting rod 404. The fixed beam 401 is fixedly connected to the crossbar 5 at both ends. The two ends of the triangular front support 402 are fixedly connected to the fixed beam 401, and the two ends of the triangular rear support 403 are fixedly connected to the fixed beam 401. The apex of the triangular front support 402 and the apex of the triangular rear support 403 are fixedly connected through the fixed connecting rod 404, and one end of the fixed connecting rod 404 is fixedly connected to the fixed block 1.

[0061] In these embodiments, the addition of wheels 3 to the gripping device improves the mobility of the entire gripping device and broadens its application. Additionally, a support section 4 is designed, comprising a fixed beam 401, a triangular front support 402, a triangular rear support 403, and a fixed connecting rod 404. The fixed beam 401 secures the triangular front support 402 and the triangular rear support 403 to the crossbar 5, and the vertices of the triangular front support 402 and the triangular rear support 403 are secured together by the fixed connecting rod 404. This allows the support section 4 to form multiple triangular structures. Based on the stability and dispersion of triangles, the gripping chuck can remain stably positioned at the head of the gripping device, and the weight of the submersible nozzle can be effectively distributed during gripping, facilitating stable transport of the submersible nozzle via the wheels 3 of the gripping device.

[0062] It should be noted that the outer diameter of wheel 3 is 65mm.

[0063] It should be noted that the fixed beam 401 consists of two rectangular steel plates with a length of 360mm, a width of 80mm, and a thickness of 20mm.

[0064] It should be noted that the material of the front triangular bracket 402 is steel pipe, and the length of the steel pipe is 72mm; the material of the rear triangular bracket 403 is steel pipe, and the length of the steel pipe is 108mm.

[0065] In some alternative embodiments, the included angle of the triangular front bracket 402 is 35° to 45°.

[0066] In these embodiments, the included angle of the triangular front support 402 can be 35° to 45°, which makes the triangular front support 402 have good stability and dispersion. After the gripper has gripped the submersible nozzle, the weight of the submersible nozzle can be distributed to the crossbar 5, the fixed connecting rod 404 and the triangular rear support 403 through the triangular front support 402, which effectively improves the stability of the submersible nozzle during the transportation and gripping stages.

[0067] The included angle of the triangular front bracket 402 can be 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44° or 45°.

[0068] In some alternative embodiments, the included angle of the triangular rear support 403 is 25° to 35°.

[0069] In these embodiments, the included angle of the triangular rear support 403 can be 25° to 35°, so that the triangular rear support 403 has good stability and dispersion. After the gripper has gripped the submersible nozzle, the weight of the triangular front support 402 can be stably transmitted to the handle 405 and the crossbar 5 through the triangular rear support 403, thereby effectively improving the stability of the submersible nozzle during transportation and gripping.

[0070] The included angle of the triangular rear bracket 403 can be 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34° or 35°.

[0071] In some alternative embodiments, the bracket portion 4 further includes a handle 405, which is fixedly connected to the other end of the fixing link 404.

[0072] In these embodiments, the support portion 4 may also include a handle 405, and the other end of the fixed connecting rod 404 is fixedly connected to the handle 405. The clamping device can be pushed through the handle 405 to provide the conveying force of the clamping device. In addition, the stability of the support portion 4 can be controlled through the handle 405 to improve the stability and clamping efficiency of the immersion nozzle clamping process.

[0073] In summary, the immersion-type sprue gripper provided in this application embodiment has a gripper head 2 fixed by a fixing block 1. The gripper head 2, equipped with a rotating fork arm 201 and a clamping spring 202, is used. The rotating fork arm 201 is rotatably connected to the fixing block 1. The extension and retraction of the clamping spring 202 controls the rotation of the rotating fork arm 201 around the fixing block 1, thereby controlling the size of the opening between the two rotating fork arms 201 and thus the size of the clamping space formed between them. When the opening of the clamping space is less than or equal to that of the submersible nozzle, the pipe sidewall of the submersible nozzle can be clamped between the two rotating fork arms 201. At the same time, the clamping spring 202 is compressed to generate an elastic force with a tendency to stretch. Under the action of this elastic force, the rotating fork arms 201 can be pressed tightly against the pipe sidewall of the submersible nozzle, thus achieving stable clamping of the submersible nozzle. In addition, this clamping process only requires the linkage of the clamping spring 202, the rotating fork arms 201 and the fixing block 1, thereby improving the efficiency of clamping the submersible nozzle.

[0074] Another example of the immersion-type sprue clamping device provided in this application has the following general usage process:

[0075] The clamping device is pushed to a predetermined position using wheels 3 and handle 405. Then, the support part 4 is uprighted using handle 405. At this point, the clamping chuck grasps the submersible sprue. During the clamping phase, the center line between the two guide wheels 203 is aligned with the submersible sprue. The clamping device is then pushed so that the submersible sprue enters the clamping space of the rotating fork arm 201. The submersible sprue then expands the rotating fork arm 201, causing it to rotate. Simultaneously, the rotation of the rotating fork arm 201 causes the clamping spring 202 to contract. Under the restoring force of the clamping spring 202, the rotating fork arm 201 can clamp the submersible sprue. Once the submersible sprue is fully inserted into the clamping space of the two rotating forks 201, the clamping head is raised to the height of the submersible sprue relative to the ground using the handle 405. At this point, the weight of the submersible sprue is distributed among the fixed beam 401, the front triangular support 402, the rear triangular support 403, the fixed connecting rod 404, and the crossbar 5, so that the submersible sprue is finally supported by the wheel 3, thus completing the clamping of the submersible sprue. Then, through the pushing of the handle 405 and the rolling of the wheel 3, the submersible sprue is transported to the predetermined position, and finally the submersible sprue is unloaded to complete the replacement of the submersible sprue.

[0076] It should be noted that during the above usage process, the following precautions must be taken: When using the rotating fork arm 201 to insert and remove submersible nozzles, only one submersible nozzle should be clamped at a time to prevent tipping when clamping multiple nozzles. When lifting the submersible nozzle, ensure that the entire steel ring of the nozzle is within the clamping space of the rotating fork arm 201. Furthermore, during the transport process, the rotating fork arm 201 must not be rotated downwards, and attention should be paid to obstacles in the operation of the clamping equipment. If the clamping equipment is on an uneven track or on uneven ground, it should be moved slowly to prevent the submersible nozzle from shaking and falling. Additionally, when transporting the submersible nozzle to the casting position, a special nozzle clamp must be used to remove the nozzle to complete the replacement operation.

[0077] In addition, the immersion-type sprue clamping device provided in this application embodiment has a simple overall structure and is easy to operate, which can save a lot of labor costs; moreover, the clamping device can be made from materials such as old steel plates and steel pipes, which makes the device have low production and usage costs and has strong promotional significance.

[0078] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed in this application.

Claims

1. An immersion-type sprue gripper, characterized in that, The gripping head includes: Fixed block (1); The clamping head (2) includes at least two rotating fork arms (201), which are rotatably connected to the fixed block (1). The rotating fork arms (201) are symmetrically arranged at one end of the fixed block (1) relative to the fixed block (1). An opening is formed between the two rotating fork arms (201) to form a clamping space. The opening degree of the clamping space is less than or equal to that of the immersion nozzle. The rotating fork arms (201) and the fixed block (1) are connected by a clamping spring (202).

2. The gripping chuck according to claim 1, characterized in that, The rotating fork arm (201) is provided with a semi-circular arc surface (211), and the two symmetrically arranged semi-circular arc surfaces (211) form the clamping space.

3. The gripping chuck according to claim 2, characterized in that, The opening size of the clamping space is 150mm to 250mm.

4. The gripping chuck according to claim 1, characterized in that, The rotation angle of the rotating fork arm (201) is 0° to 35°.

5. The gripping chuck according to claim 1, characterized in that, The rotating fork arm (201) is provided with a guide wheel (203) at the end away from the clamping spring (202), and the guide wheel (203) is rotatably connected to the rotating fork arm (201).

6. An immersion-type sprue clamping device, characterized in that, The gripping device includes the gripping chuck as described in any one of claims 1 to 5.

7. The clamping device according to claim 6, characterized in that, The clamping device further includes: At least two wheels (3), the two wheels (3) are connected by a crossbar (5); The support unit (4) includes a fixed beam (401), a triangular front support (402), a triangular rear support (403), and a fixed connecting rod (404). The fixed beam (401) is fixedly connected to the crossbar (5) and is located at both ends of the crossbar (5). The two ends of the triangular front support (402) are fixedly connected to the fixed beam (401), and the two ends of the triangular rear support (403) are fixedly connected to the fixed beam (401). The apex of the triangular front support (402) and the apex of the triangular rear support (403) are fixedly connected through the fixed connecting rod (404). One end of the fixed connecting rod (404) is fixedly connected to the fixed block (1).

8. The clamping device according to claim 7, characterized in that, The included angle of the triangular front bracket (402) is 35° to 45°.

9. The clamping device according to claim 7, characterized in that, The included angle of the triangular rear bracket (403) is 25° to 35°.

10. The clamping device according to claim 7, characterized in that, The bracket (4) also includes a handle (405), which is fixedly connected to the other end of the fixed connecting rod (404).

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