Opening and clamping mechanism of online width adjusting crystallizer

Abstract

The utility model relates to the technical field of continuous casting of steel and iron, and discloses an opening and clamping mechanism of an on-line width-adjusting crystallizer, which comprises an opening and clamping device comprising a first opening and clamping component and a second opening and clamping component which are arranged in a layered manner along the height direction of the on-line width-adjusting crystallizer, an axial length difference exists between the first tensioning and clamping assembly and the second tensioning and clamping assembly; the limiting assembly comprises a first limiting structure and a second limiting structure which are independent of each other, the first limiting structure is detachably connected to the first clamping assembly, and the second limiting structure is detachably connected to the second clamping assembly. The moving stroke amount of the first clamping assembly and the moving stroke amount of the second clamping assembly can be independently adjusted through the first limiting structure and the second limiting structure respectively. The clamping device has the advantage that the moving stroke amount of the first clamping assembly and the moving stroke amount of the second clamping assembly are allowed to be independently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of steel continuous casting technology, and in particular to an opening and clamping mechanism for an online width-adjusting crystallizer. Background Technology

[0002] In continuous casting production, the online width-adjusting crystallizer opening and clamping device is a core actuator, and its dynamic performance directly affects the quality of the cast billet and the service life of the equipment. In existing designs, to prevent excessive movement of the wide-side and narrow-side copper plates during width adjustment or clamping, a limiting plate is typically used as a mechanical limiting device. However, existing limiting plates are generally connected to two separate sets of disc spring assemblies. This design leads to a major problem: during equipment installation or preventative maintenance, any adjustment operation involving the position of the limiting plate requires simultaneous processing of both sets of disc spring assemblies. This requirement makes commissioning more complex, not only extending downtime but also significantly increasing maintenance costs. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose an online clamping mechanism for widening crystallizer that allows for independent adjustment of the travel distance of the first clamping assembly and the second clamping assembly.

[0004] The technical solution adopted by this utility model to solve its technical problem is an opening and clamping mechanism for an online width-adjusting crystallizer, comprising:

[0005] The clamping device includes a first clamping assembly and a second clamping assembly arranged in layers along the height direction of the online width-adjusting crystallizer, and the first clamping assembly and the second clamping assembly have an axial length difference.

[0006] The limiting component includes a first limiting structure and a second limiting structure that are independent of each other. The first limiting structure is detachably connected to the first sheet clamping component, and the second limiting structure is detachably connected to the second sheet clamping component. The travel distance of the first sheet clamping component and the second sheet clamping component can be adjusted independently through the first limiting structure and the second limiting structure.

[0007] Furthermore, the first clamping assembly is located above the second clamping assembly, and the axial length of the first clamping assembly is less than the axial length of the second clamping assembly.

[0008] Furthermore, the first clamping assembly includes a first cylinder, and the second clamping assembly includes a second cylinder, with one end of the first cylinder and the second cylinder being flush and the other end having an axial length difference.

[0009] Furthermore, the first cylinder is provided with a movable first piston rod and a first disc spring assembly, and the second cylinder is provided with a movable second piston rod and a second disc spring assembly. When the first piston rod moves in the first cylinder, it can compress or release the first disc spring assembly, and when the second piston rod moves in the second cylinder, it can compress or release the second disc spring assembly.

[0010] Furthermore, one end of the first piston rod passes through the first disc spring assembly, and the other end extends away from the first disc spring assembly. One end of the second piston rod passes through the second disc spring assembly, and the other end extends away from the second disc spring assembly. A first cylinder head bushing is provided on the extended end of the first piston rod, and a second cylinder head bushing is provided on the extended end of the second piston rod.

[0011] Furthermore, the first limiting structure is detachably disposed on the side of the first cylinder head bushing opposite to the first piston rod, and can restrict the first piston rod from moving toward the first disc spring assembly; the second limiting structure is detachably disposed on the side of the second cylinder head bushing opposite to the second piston rod, and can restrict the second piston rod from moving toward the second disc spring assembly.

[0012] Furthermore, the first limiting structure is detachably abutted against the first cylinder head bushing, the first cylinder head bushing has a first through hole for the first piston rod to move, and the outer diameter of the first limiting structure is larger than the diameter of the first through hole. The second limiting structure is detachably abutted against the second cylinder head bushing, the second cylinder head bushing has a second through hole for the second piston rod to move, and the outer diameter of the second limiting structure is larger than the diameter of the second through hole.

[0013] Furthermore, it includes a first locking nut located on the side of the first limiting structure opposite to the first cylinder head bushing, and a second locking nut located on the side of the second limiting structure opposite to the second cylinder head bushing. The first piston rod passes through the first cylinder head bushing and the first limiting structure in sequence and is connected to the first locking nut. The second piston rod passes through the second cylinder head bushing and the second limiting structure in sequence and is connected to the second locking nut.

[0014] Furthermore, the first locking nut and the second locking nut have the same structure, both having a connecting hole that extends through them along the axial direction, as well as an adjusting groove and an adjusting hole. The adjusting groove is perpendicularly connected to the connecting hole, and the adjusting hole extends perpendicularly through the adjusting groove. An adjusting element is rotatably provided in the adjusting hole. When the adjusting element rotates, it can adjust the opening of the adjusting groove to loosen or tighten the first locking nut or the second locking nut.

[0015] Furthermore, the load on the second disc spring assembly is greater than or equal to three times the load on the first disc spring assembly.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. In this invention, the first and second clamping assemblies, arranged in layers along the height direction of the online width-adjusting crystallizer, have an axial length difference. The limiting assembly includes a first limiting structure and a second limiting structure that are independent of each other. The first limiting structure is detachably connected to the first clamping assembly, and the second limiting structure is detachably connected to the second clamping assembly. The first and second limiting structures allow for independent adjustment of the travel distance of the first and second clamping assemblies. This design allows for individual adjustment of the travel distance of the first and second clamping assemblies, solving the complexity problem caused by the need to simultaneously process two sets of disc spring assemblies in the prior art, significantly shortening downtime and reducing maintenance costs.

[0018] 2. In this utility model, a first cylinder head bushing is provided on the first piston rod and its extension end, and a second cylinder head bushing is provided on the extension end of the second piston rod. This design can effectively reduce the frictional resistance of the first and second piston rods during the width adjustment process, ensuring the force balance of the narrow-side copper plate during the width adjustment or clamping process.

[0019] 3. In this utility model, the first locking nut and the second locking nut have the same structure, both having a connecting hole, an adjusting groove, and an adjusting hole, with an adjusting element rotatably disposed within the adjusting hole. When the adjusting element rotates, it can adjust the opening of the adjusting groove, thereby loosening or tightening the first locking nut or the second locking nut. This design simplifies the loosening or tightening operation of the first and second locking nuts, reduces the need for complex tools, makes maintenance more convenient and faster, and reduces maintenance time and costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the opening and clamping mechanism of this utility model assembled on an online width-adjusting crystallizer.

[0021] Figure 2 for Figure 1 Cross-sectional view at point AA.

[0022] Figure 3 This is a partial cross-sectional view of the opening and clamping mechanism in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the first locking nut in this utility model.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0025] 100. First clamping assembly; 110. First cylinder body; 120. First piston rod; 130. First disc spring assembly; 140. First cylinder head bushing; 141. First through hole; 150. First pull rod; 200. Second clamping assembly; 210. Second cylinder body; 220. Second piston rod; 230. Second disc spring assembly; 240. Second cylinder head bushing; 241. Second through hole; 250. Second pull rod; 300. Limiting assembly; 310. First limiting structure; 320. Second limiting structure; 400. First locking nut; 410. Connecting hole; 420. Adjusting groove; 430. Adjusting hole; 431. Adjusting component; 500. Second locking nut; 600. Wide-edge copper plate; 610. Narrow-edge copper plate. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical 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] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figures 1 to 4 As shown, in this embodiment, an opening and clamping mechanism for an online width-adjusting crystallizer includes:

[0032] The clamping device includes a first clamping assembly 100 and a second clamping assembly 200 arranged in layers along the height direction of the online width-adjusting crystallizer, and the first clamping assembly 100 and the second clamping assembly 200 have an axial length difference.

[0033] The limiting assembly 300 includes a first limiting structure 310 and a second limiting structure 320 that are independent of each other. The first limiting structure 310 is detachably connected to the first clamping assembly 100, and the second limiting structure 320 is detachably connected to the second clamping assembly 200. The travel distance of the first clamping assembly 100 and the second clamping assembly 200 can be adjusted independently through the first limiting structure 310 and the second limiting structure 320. This design allows for individual adjustment of the travel distance of the first clamping assembly 100 and the second clamping assembly 200, solving the complexity problem caused by the need to simultaneously process two sets of disc spring assemblies in the prior art, significantly reducing downtime and maintenance costs.

[0034] like Figure 1 , Figure 2 As shown, in this embodiment, the opening and clamping device is mounted on the online width-adjusting crystallizer. The online width-adjusting crystallizer includes two sets of wide-side copper plates 600 arranged opposite each other and extending along the length of the crystallizer, and two sets of narrow-side copper plates 610 movably clamped between the two sets of wide-side copper plates 600, with the two sets of narrow-side copper plates 610 arranged opposite each other. The opening and clamping mechanism has two sets, located at the left and right ends of the wide-side copper plates 600 respectively, used to adjust the distance between the two sets of wide-side copper plates 600 to clamp or loosen the narrow-side copper plates 610, ensuring that the narrow-side copper plates 610 can move stably and smoothly along the length between the two sets of wide-side copper plates 600.

[0035] like Figures 1 to 4 As shown, the clamping mechanism includes a clamping device and a limiting assembly 300. Because the upper and lower parts of the wide-edge copper plate 600 experience different static pressures, in this embodiment, the clamping device includes a first clamping assembly 100 and a second clamping assembly 200 arranged in layers along the height direction of the online width-adjusting crystallizer. These components work in conjunction with the first disc spring assembly 130 and the second disc spring assembly 230 to adjust the preload on the upper and lower parts of the wide-edge copper plate 600 respectively.

[0036] In this embodiment, the first clamping assembly 100 and the second clamping assembly 200 have an axial length difference so that the first limiting structure 310 and the second limiting structure 320 can be staggered, avoiding interference during installation and ensuring the compactness of the structure.

[0037] In this embodiment, the first clamping assembly 100 is located directly above the second clamping assembly 200 and is detachably fixed to the upper part of the wide-edge copper plate 600. The second clamping assembly 200 is detachably fixed to the lower part of the wide-edge copper plate 600, and the axial length of the first clamping assembly 100 is less than the axial length of the second clamping assembly 200. This design facilitates the vertical arrangement of the first limiting structure 310 and the second limiting structure 320, thereby improving the convenience for operators to disassemble and assemble the first limiting structure 310 and the second limiting structure 320 during maintenance and repair.

[0038] In this embodiment, the first clamping assembly 100 includes a first cylinder 110, which is detachably fixed to the upper part of the wide-side copper plate 600 away from the narrow-side copper plate 610 by fasteners. The second clamping assembly 200 includes a second cylinder 210, which is detachably fixed to the lower part of the wide-side copper plate 600 away from the narrow-side copper plate 610 by fasteners. The first cylinder 110 and the second cylinder 210 are flush at one end and have an axial length difference at the other end. This design allows the first clamping assembly 100 and the second clamping assembly 200 to form an axial length difference, facilitating the installation of the first limiting structure 310 and the second limiting structure 320. Furthermore, it facilitates the setting of a first disc spring group 130 and a second disc spring group 230 with different loads, enabling differentiated adjustment of the preload on the upper and lower parts of the wide-side copper plate 600, ensuring the force balance of the narrow-side copper plate 610 during the width adjustment process.

[0039] Preferably, in this embodiment, the length of the first cylinder 110 is less than the length of the second cylinder 210, and the first cylinder 110 and the second cylinder 210 are hydraulic cylinders or pneumatic cylinders.

[0040] In this embodiment, a movable first piston rod 120 and a first disc spring assembly 130 are provided inside the first cylinder 110. The first piston rod 120 and the first disc spring assembly 130 are arranged axially along the first cylinder 110, and the first piston rod 120 passes through the first disc spring assembly 130. When the first piston rod 120 moves within the first cylinder 110, it can compress or release the first disc spring assembly 130. A movable second piston rod 220 and a second disc spring assembly 230 are provided inside the second cylinder 210. The second piston rod 220 and the second disc spring assembly 230 are arranged axially along the second cylinder 210, and the second piston rod 220 passes through the second disc spring assembly 230. When the second piston rod 220 moves within the second cylinder 210, it can compress or release the second disc spring assembly 230. This design allows the first clamping assembly 100 and the second clamping assembly 200 to generate a soft clamping force. This soft clamping force can offset some of the applied force while ensuring sufficient preload, reducing direct pressure on the narrow-edge copper plate 610 and thus alleviating its motion damping. Furthermore, the presence of this soft clamping force reduces friction between the narrow-edge copper plate 610 and the wide-edge copper plate 600, effectively lowering the risk of surface scratches on the copper plates. This not only improves the surface quality of the cast billet but also extends the service life of the copper plates. In addition, the soft clamping force design allows the narrow-edge copper plate 610 to move more smoothly during the width adjustment process, avoiding jamming caused by excessive friction. This ensures accuracy during the width adjustment process and improves the reliability of the entire online width adjustment crystallizer operation.

[0041] In this embodiment, one end of the first piston rod 120 passes through the first disc spring assembly 130 and extends out of the first cylinder body 110 to connect with the first pull rod 150, while the other end extends away from the first disc spring assembly 130. A first cylinder head bushing 140 is provided on the extended end of the first piston rod 120. One end of the second piston rod 220 passes through the second disc spring assembly 230 and extends out of the second cylinder body 210 to connect with the second pull rod 250, while the other end extends away from the second disc spring assembly 230. A second cylinder head bushing 240 is provided on the extended end of the second piston rod 220. This design effectively prevents the cylinder head inner bore from directly contacting the external environment, reducing the erosion of moisture and corrosive substances. It not only protects the cylinder head inner bore, extending its service life and improving the overall reliability and durability of the equipment, but also effectively reduces the frictional resistance during the movement of the first piston rod 120 and the second piston rod 220 during width adjustment, ensuring the force balance of the narrow-side copper plate 610 during width adjustment or clamping.

[0042] To prevent excessive movement of the wide-side copper plate 600 and the narrow-side copper plate 610 during width adjustment or clamping, a limiting component 300 is provided in this embodiment. This limiting component 300 includes a first limiting structure 310 and a second limiting structure 320. The first limiting structure 310 is detachably disposed on the side of the first cylinder head bushing 140 opposite to the first piston rod 120 and restricts the movement of the first piston rod 120 towards the first disc spring assembly 130. The second limiting structure 320 is detachably disposed on the side of the second cylinder head bushing 240 opposite to the second piston rod 220 and restricts the movement of the second piston rod 220 towards the second disc spring assembly 230. This design not only effectively prevents excessive movement of the wide-side copper plate 600 and the narrow-side copper plate 610 during width adjustment or clamping, improving the stability and reliability of the equipment, but also enables independent adjustment of the travel distance of the first clamping assembly 100 and the second clamping assembly 200. When installing or performing preventative maintenance on the equipment, operators can disassemble and install the first limit structure 310 and the second limit structure 320 one by one or individually as needed, without having to shut down the entire machine or replace the entire component, which significantly shortens downtime and reduces maintenance costs.

[0043] In this embodiment, the first limiting structure 310 is detachably abutted against the first cylinder head bushing 140, which has a first through hole 141 for the first piston rod 120 to move, and the outer diameter of the first limiting structure 310 is larger than the diameter of the first through hole 141. The second limiting structure 320 is detachably abutted against the second cylinder head bushing 240, which has a second through hole 241 for the second piston rod 220 to move, and the outer diameter of the second limiting structure 320 is larger than the diameter of the second through hole 241. This design ensures that, in the working state, the first limiting structure 310 can limit the overtravel movement of the first piston rod 120 towards the first disc spring assembly 130, and the second limiting structure 320 can limit the overtravel movement of the second piston rod 220 towards the second disc spring assembly 230. At the same time, it ensures that the first limiting structure 310 and the second limiting structure 320 can be easily removed during maintenance, so that the first piston rod 120 and the second piston rod 220 can move in the direction of the pull rod, thereby increasing the distance between the two wide-side copper plates 600, and making it easy to remove the narrow-side copper plate 610 for cleaning and maintenance.

[0044] In this embodiment, both the first limiting structure 310 and the second limiting structure 320 include a vertically connected limiting part and a handle part. The limiting part is located near the first cylinder head bushing 140 or the second cylinder head bushing 240 and has a limiting hole through which the first piston rod 120 or the second piston rod 220 passes. The handle part is located above the limiting part and extends along the height direction of the online adjustable crystallizer. This design effectively improves the ease of assembly and disassembly of the first limiting structure 310 and the second limiting structure 320.

[0045] In this embodiment, a first locking nut 400 and a second locking nut 500 are also included to fix the first limiting structure 310 and the first piston rod 120, and to fix the second limiting structure 320 and the second piston rod 220. The first locking nut 400 is located on the side of the first limiting structure 310 opposite to the first cylinder head bushing 140, and the second locking nut 500 is located on the side of the second limiting structure 320 opposite to the second cylinder head bushing 240. The first piston rod 120 passes through the first cylinder head bushing 140 and the first limiting structure 310 sequentially and is threadedly connected to the first locking nut 400. The second piston rod 220 passes through the second cylinder head bushing 240 and the second limiting structure 320 sequentially and is threadedly connected to the second locking nut 500. By introducing the first locking nut 400 and the second locking nut 500, reliable fixation of the first limiting structure 310 to the first piston rod 120 and the second limiting structure 320 to the second piston rod 220 is achieved. This design ensures the stability of the piston rod during operation, preventing equipment failure caused by loosening or misalignment.

[0046] In this embodiment, the first locking nut 400 and the second locking nut 500 have the same structure, both having a connecting hole 410 extending axially through them, an adjusting groove 420, and an adjusting hole 430. The adjusting groove 420 is U-shaped and communicates perpendicularly with the connecting hole 410. The adjusting hole 430 extends perpendicularly through the adjusting groove 420, and an adjusting member 431 is rotatably provided within the adjusting hole 430. When the adjusting member 431 rotates, it can adjust the opening of the adjusting groove 420 to loosen or tighten the first locking nut 400 or the second locking nut 500. This design simplifies the loosening or tightening operation of the first locking nut 400 and the second locking nut 500, reduces the need for complex tools, makes maintenance more convenient and faster, and reduces maintenance time and costs.

[0047] Preferably, in this embodiment, both the connecting hole 410 and the adjusting hole 430 are threaded holes, and the adjusting member 431 is a screw. The adjusting member 431, by rotating within the adjusting hole 430, can enlarge or reduce the opening of the adjusting groove 420. When the opening of the adjusting groove 420 is reduced, the threads on the inner wall of the connecting hole 410 are pressed against the threads on the first piston rod 120 or the second piston rod 220, and the first locking nut 400 or the second locking nut 500 is locked, preventing movement. When the opening of the adjusting groove 420 is enlarged, the threads on the inner wall of the connecting hole 410 are relaxed, and the first locking nut 400 or the second locking nut 500 is unlocked and can move relative to the first piston rod 120 or the second piston rod 220, allowing for quick assembly and disassembly of the first limiting structure 310 and the second limiting structure 320.

[0048] In this embodiment, the load of the second disc spring assembly 230 is greater than or equal to three times the load of the first disc spring assembly 130. This design creates a looser upper section and a tighter lower section between the first disc spring assembly 130 and the second disc spring assembly 230, which effectively ensures that the soft clamping force and the static pressure of the molten steel reach a certain balance during the width adjustment process, thus ensuring the stability of the width adjustment process.

[0049] Preferably, in this embodiment, the first disc spring assembly 130 adopts a specification of 100(D)×51(d)×6(t)×8.2(H), with 10 disc springs in a single-piece paired combination. This increases the stroke of the first disc spring assembly 130 from the original 6.5mm to 8mm, solving the problem of limited cylinder stroke and ensuring that the copper plate has sufficient corner gaps after opening to complete side cleaning. The second disc spring assembly 230 adopts a specification of 125(D)×64(d)×7.5(t)×10.6(H), with 20 disc springs in a double-piece paired combination. This effectively improves the preload of the second disc spring assembly 230 and enhances the stability of the disc springs.

Claims

1. An opening and clamping mechanism for an online width-adjusting crystallizer, characterized in that, include: The clamping device includes a first clamping assembly and a second clamping assembly arranged in layers along the height direction of the online width-adjusting crystallizer, and the first clamping assembly and the second clamping assembly have an axial length difference. The limiting component includes a first limiting structure and a second limiting structure that are independent of each other. The first limiting structure is detachably connected to the first sheet clamping component, and the second limiting structure is detachably connected to the second sheet clamping component. The travel distance of the first sheet clamping component and the second sheet clamping component can be adjusted independently through the first limiting structure and the second limiting structure.

2. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 1, characterized in that, The first clamping assembly is located above the second clamping assembly, and the axial length of the first clamping assembly is less than the axial length of the second clamping assembly.

3. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 2, characterized in that, The first clamping assembly includes a first cylinder, and the second clamping assembly includes a second cylinder. The first cylinder and the second cylinder are flush at one end and have an axial length difference at the other end.

4. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 3, characterized in that, The first cylinder contains a movable first piston rod and a first disc spring assembly, and the second cylinder contains a movable second piston rod and a second disc spring assembly. When the first piston rod moves within the first cylinder, it can compress or release the first disc spring assembly, and when the second piston rod moves within the second cylinder, it can compress or release the second disc spring assembly.

5. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 4, characterized in that, One end of the first piston rod passes through the first disc spring assembly, and the other end extends away from the first disc spring assembly. One end of the second piston rod passes through the second disc spring assembly, and the other end extends away from the second disc spring assembly. A first cylinder head bushing is provided on the extended end of the first piston rod, and a second cylinder head bushing is provided on the extended end of the second piston rod.

6. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 5, characterized in that, The first limiting structure is detachably disposed on the side of the first cylinder head bushing opposite to the first piston rod, and can restrict the first piston rod from moving toward the first disc spring assembly. The second limiting structure is detachably disposed on the side of the second cylinder head bushing opposite to the second piston rod, and can restrict the second piston rod from moving toward the second disc spring assembly.

7. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 6, characterized in that, The first limiting structure is detachably abutted against the first cylinder head bushing, the first cylinder head bushing has a first through hole for the first piston rod to move, and the outer diameter of the first limiting structure is larger than the diameter of the first through hole. The second limiting structure is detachably abutted against the second cylinder head bushing, the second cylinder head bushing has a second through hole for the second piston rod to move, and the outer diameter of the second limiting structure is larger than the diameter of the second through hole.

8. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 6, characterized in that, It includes a first locking nut located on the side of the first limiting structure opposite to the first cylinder head bushing, and a second locking nut located on the side of the second limiting structure opposite to the second cylinder head bushing. The first piston rod passes through the first cylinder head bushing and the first limiting structure in sequence and is connected to the first locking nut. The second piston rod passes through the second cylinder head bushing and the second limiting structure in sequence and is connected to the second locking nut.

9. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 8, characterized in that, The first locking nut and the second locking nut have the same structure, both having a connecting hole that extends through them along the axial direction, an adjusting groove, and an adjusting hole. The adjusting groove is perpendicularly connected to the connecting hole, and the adjusting hole extends perpendicularly through the adjusting groove. An adjusting element is rotatably provided inside the adjusting hole. When the adjusting element rotates, it can adjust the opening of the adjusting groove to loosen or tighten the first locking nut or the second locking nut.

10. The opening and clamping mechanism for an online width-adjusting crystallizer according to claim 4, characterized in that, The load of the second disc spring assembly is greater than or equal to three times the load of the first disc spring assembly.

Images