Square billet continuous casting machine crystallizer

Abstract

The utility model relates to the technical field of continuous casting machine crystallizers, in particular to a square billet continuous casting machine crystallizer which comprises a supporting plate, a crystallization chamber and a quick release assembly, the crystallization chamber is installed inside the supporting plate, an end cover is installed on the upper surface of the crystallization chamber, a guide pipe is fixedly connected to the outer circumference of the crystallization chamber, and the quick release assembly is installed on the guide pipe. The guide pipe is communicated with the inner wall of the crystallization chamber, the guide pipe is fixedly connected with the upper surface of the supporting plate, the quick release assembly is arranged on the cambered surface of the crystallization chamber, and a foot roller is mounted on the lower surface of the crystallization chamber; the quick release assembly comprises a connecting unit, the connecting unit comprises an L-shaped support, and the L-shaped support abuts against the cambered surface of the crystallization chamber. According to the utility model, through the arrangement of the quick release assembly, the foot roller of the equipment can be conveniently disassembled and maintained by a worker, so that the problem that the maintenance cost is increased due to complicated disassembly operation when a bolt is used for fixing is reduced, and the convenience of equipment maintenance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting machine crystallizers, in particular to a square billet continuous casting machine crystallizer. Background Art

[0002] The crystallizer is the most critical component of the continuous casting machine. It receives the molten steel injected from the intermediate tank and solidifies it into a solid shell according to the specified cross-sectional shape. Its main functions include: gradually solidifying the molten steel into a shell of the required specifications and shape; through the vibration of the crystallizer, the shell is separated from the crystallizer wall without being pulled apart or leaking steel; adjusting the parameters of the crystallizer to prevent defects such as squareness, bulging and cracks in the casting; ensuring that the shell is generated uniformly and stably. To ensure the good performance of the crystallizer, it needs to meet some basic conditions, such as good thermal conductivity to enable the molten steel to condense and form quickly; good wear resistance to extend the service life and reduce maintenance workload; sufficient rigidity to maintain small deformation under conditions of rapid cooling and heating and large temperature gradients.

[0003] Existing technologies include a utility model with publication number CN214720387U, which discloses a novel continuous casting machine crystallizer. The patent uses a mounting plate, through which a crystallizer shell is inserted. The crystallizer shell is hollow and through-set. A cooling device is provided in the crystallizer shell, and a cooling water supply device is provided below the mounting plate. The cooling device can timely reduce the temperature of the outer wall of the material pipe to ensure a high-quality molding effect of the molten material. The cooling device is detachable from the crystallizer shell, and when a material pipe fails, it can be replaced with a new one in a timely manner without replacing the entire crystallizer. This solves the problem that the internal structure of the crystallizer is easily damaged due to long-term exposure to high temperature and high pressure. When replacing, the staff needs to replace the entire crystallizer with a new one, which increases production costs.

[0004] In the process of producing auxiliary continuous casting machines with the help of crystallizers, most of the crystallizer foot rollers on the market are fixed to the bottom of the equipment body with multiple bolts. When the staff needs to disassemble and maintain the foot roller, the staff must use tools to remove the bolts one by one before removing the foot roller. Due to the large number of bolts used for installation, when the staff performs the disassembly operation, it takes a long time to perform the disassembly operation, which in turn leads to the problem of increased maintenance costs of the equipment. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that workers need to spend a long time to perform disassembly operations, which leads to increased maintenance costs of the equipment, and to propose a crystallizer for a square billet continuous casting machine.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a crystallizer of a square billet continuous casting machine, comprising a support plate, a crystallization chamber and a quick-release assembly, wherein the crystallization chamber is installed inside the support plate, an end cover is installed on the upper surface of the crystallization chamber, a conduit is fixedly connected to the outer circumference of the crystallization chamber, the conduit is communicated with the inner wall of the crystallization chamber, the conduit is fixedly connected to the upper surface of the support plate, the quick-release assembly is arranged on the arc surface of the crystallization chamber, and a foot roller is installed on the lower surface of the crystallization chamber;

[0007] The quick-release assembly includes a connecting unit, which includes an L-shaped bracket, which abuts the arc surface of the crystallization chamber, and the L-shaped bracket is fixedly connected to the lower surface of the foot roller. The side surface of the L-shaped bracket is fixedly connected to a U-shaped block, and a rotating hole is opened on the surface of the U-shaped block. The U-shaped block is located on the inner wall of the rotating hole and is rotatably connected to a two-way shaft rod. The surface of the two-way shaft rod is fixedly connected to a limiting ring. Both ends of the two-way shaft rod are fixedly connected to a connecting sleeve, and the surface of the connecting sleeve is rotatably connected to a connecting rod. The side surface of the connecting sleeve is fixedly connected to a positioning plate, and both ends of the two-way shaft rod are fixedly connected to an anti-slip knob;

[0008] The quick-release assembly also includes a constraint unit, which includes a threaded sleeve, which is threadedly connected to the surface of the bidirectional shaft, and the side surface of the threaded sleeve is fixedly connected to a force-loading plate, and the side surface of the force-loading plate is fixedly connected to a bayonet, and the arc surface of the crystallization chamber is fixedly connected to a buckle frame, and the bayonet pin is plugged into the inner wall of the buckle frame.

[0009] Preferably, the number of the L-shaped brackets is two, and the two L-shaped brackets are symmetrically arranged front to back about the crystallization chamber. The clamping area formed by the two L-shaped brackets has an interference fit with the arc surface of the crystallization chamber. The number of the U-shaped blocks matches the L-shaped brackets. During crystallization, the position of the foot roller can be initially limited to the installation area below the crystallization chamber through the L-shaped brackets on both sides.

[0010] Preferably, there are two limit rings, which are symmetrically arranged with respect to the U-shaped block. The limit rings are in contact with the surface of the U-shaped block. The position of the bidirectional shaft can be limited by the limit rings, thereby ensuring the stability of the bidirectional shaft in the working state.

[0011] Preferably, there are two connecting rods, which are symmetrically arranged with respect to the crystallization chamber. The positioning plate contacts the surface of the connecting rod. The connecting rod can support the position of the bidirectional shaft rods on both sides, and can cooperate with the bidirectional shaft rods on both sides to form a frame to limit the position of the L-shaped bracket.

[0012] Preferably, the number of the anti-slip knobs is four, and the four anti-slip knobs are arranged diagonally with respect to the crystallization. The anti-slip knobs can be used for the staff to hold, thereby facilitating the staff to operate the bidirectional shaft.

[0013] Preferably, there are two threaded sleeves, which are symmetrically arranged about the bidirectional shaft. Through the cooperation between the threaded sleeve and the bidirectional shaft, the position of the load plate can be adjusted during the rotation of the bidirectional shaft.

[0014] Preferably, a through hole is opened on the surface of the force-carrying plate, and the bidirectional shaft is slidably connected to the inner wall of the through hole. The force-carrying plate can limit the position of the pin in the buckle frame under the action of the threaded sleeve, so that the pin can cooperate with the force-carrying plate to limit the position of the bidirectional shaft.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] The two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain, and the two-way shaft rod is convenient to disassemble and maintain BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model provides a schematic diagram of the three-dimensional structure of a crystallizer of a square billet continuous casting machine;

[0018] Figure 2 The utility model provides a schematic diagram of the bottom structure of a crystallizer of a billet continuous casting machine;

[0019] Figure 3 This utility model proposes a crystallizer for a square billet continuous casting machine. Figure 2 Schematic diagram of the structure at A in the middle;

[0020] Figure 4 The utility model provides a schematic diagram of the structure of a quick-disassembly component of a crystallizer of a billet continuous casting machine;

[0021] Figure 5 This utility model proposes a crystallizer for a square billet continuous casting machine. Figure 4 Schematic diagram of the structure at point B.

[0022] Legend:

[0023] 1. Support plate; 2. Crystallization chamber; 3. End cover; 4. Conduit; 5. Quick-release assembly; 51. Connecting unit; 511. L-shaped bracket; 512. U-shaped block; 513. Bidirectional shaft; 514. Limiting ring; 515. Connecting sleeve; 516. Connecting rod; 517. Positioning plate; 518. Anti-slip knob; 52. Constraint unit; 521. Threaded sleeve; 522. Loading plate; 523. Bayonet; 524. Buckle frame; 6. Foot roller. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: a crystallizer of a square billet continuous casting machine, comprising a support plate 1, a crystallization chamber 2 and a quick-release assembly 5, the crystallization chamber 2 is installed inside the support plate 1, an end cover 3 is installed on the upper surface of the crystallization chamber 2, a conduit 4 is fixedly connected to the outer circumference of the crystallization chamber 2, the conduit 4 is communicated with the inner wall of the crystallization chamber 2, the conduit 4 is fixedly connected to the upper surface of the support plate 1, the quick-release assembly 5 is arranged on the arc surface of the crystallization chamber 2, and a foot roller 6 is installed on the lower surface of the crystallization chamber 2.

[0025] In this embodiment: the quick-release assembly 5 includes a connecting unit 51, which includes an L-shaped bracket 511. The L-shaped bracket 511 abuts against the arc surface of the crystallization chamber 2, and the L-shaped bracket 511 is fixedly connected to the lower surface of the foot roller 6. The side surface of the L-shaped bracket 511 is fixedly connected to a U-shaped block 512. A rotating hole is opened on the surface of the U-shaped block 512. The U-shaped block 512 is located on the inner wall of the rotating hole and is rotatably connected to a two-way shaft rod 513. The surface of the two-way shaft rod 513 is fixedly connected to a limiting ring 514. Both ends of the two-way shaft rod 513 are fixedly connected to a connecting sleeve 515. The surface of the connecting sleeve 515 is rotatably connected to a connecting rod 516. The side surface of the connecting sleeve 515 is fixedly connected to a positioning plate 517. Both ends of the two-way shaft rod 513 are fixedly connected to an anti-slip knob 518.

[0026] The quick-release assembly 5 also includes a constraint unit 52, which includes a threaded sleeve 521. The threaded sleeve 521 is threadedly connected to the surface of the bidirectional shaft 513. The side surface of the threaded sleeve 521 is fixedly connected to a force-bearing plate 522. The side surface of the force-bearing plate 522 is fixedly connected to a bayonet 523. The arc surface of the crystallization chamber 2 is fixedly connected to a buckle frame 524. The bayonet 523 is plugged into the inner wall of the buckle frame 524.

[0027] Specifically, there are two L-shaped brackets 511, and the two L-shaped brackets 511 are symmetrically arranged front to back about the crystallization chamber 2. The clamping area formed by the two L-shaped brackets 511 is interference fit with the arc surface of the crystallization chamber 2. The number of U-shaped blocks 512 matches the L-shaped brackets 511. Through the L-shaped brackets 511 on both sides during crystallization, the position of the foot roller 6 can be initially limited to the installation area below the crystallization chamber 2.

[0028] Specifically, there are two limiting rings 514 , which are disposed bilaterally symmetrically with respect to the U-shaped block 512 , and the limiting rings 514 are in contact with the surface of the U-shaped block 512 .

[0029] In this embodiment, the position of the bidirectional shaft 513 can be limited by the limiting ring 514, thereby ensuring the stability of the bidirectional shaft 513 in the working state.

[0030] Specifically, there are two connecting rods 516, and the two connecting rods 516 are symmetrically arranged with respect to the crystallization chamber 2. The positioning plate 517 contacts the surface of the connecting rod 516. The connecting rod 516 can support the position of the two-way shaft rods 513 on both sides, and at the same time, it can cooperate with the two-way shaft rods 513 on both sides to form a frame to limit the position of the L-shaped bracket 511.

[0031] In this embodiment, there are four anti-slip knobs 518 , and the four anti-slip knobs 518 are arranged diagonally with respect to the crystallization.

[0032] In this embodiment, the anti-slip knob 518 can be held by the staff, thereby facilitating the staff to operate the bidirectional shaft 513 .

[0033] Specifically, there are two threaded sleeves 521, and the two threaded sleeves 521 are symmetrically arranged about the bidirectional shaft 513. Through the cooperation between the threaded sleeves 521 and the bidirectional shaft 513, the position of the load-bearing plate 522 can be adjusted during the rotation of the bidirectional shaft 513.

[0034] Specifically, a through hole is opened on the surface of the load-bearing plate 522 , and the bidirectional shaft 513 is slidably connected to the inner wall of the through hole.

[0035] In this embodiment, the force-carrying plate 522 can limit the position of the latch 523 within the buckle frame 524 under the action of the threaded sleeve 521 , so that the latch 523 can cooperate with the force-carrying plate 522 to limit the position of the bidirectional shaft 513 .

[0036] Working principle: When the crystallizer is working, molten steel enters the crystallization chamber 2, and the mold in the crystallization chamber 2 shapes the molten steel. The molten steel after shaping is formed into a square billet, and is guided by the foot roller 6 to the next processing area; when the foot roller 6 needs to be disassembled and maintained, the two anti-slip knobs 518 in the longitudinal direction are rotated clockwise. The anti-slip knobs 518 rotate the two-way shafts 513 on both sides. The two-way shafts 513 rotate under the constraints of the U-shaped block 512 and the connecting rod 516, and engage with the threaded sleeve 521 during rotation. The threaded sleeve 521 is engaged with the two-way shaft 513. The force-carrying plate 522 is driven to move, and the force-carrying plate 522 pulls the latch 523 to disengage from the buckle frame 524, so that the two-way shaft rod 513 is no longer restricted. Then the two-way shaft rod 513 can be pulled downward, and the two-way shaft rod 513 cooperates with the U-shaped block 512 and the L-shaped bracket 511 to pull off the foot roller 6, thereby realizing the disassembly operation of the foot roller 6. By setting up the quick-release component 5, it is convenient for the staff to disassemble and maintain the foot roller 6 of the equipment, thereby reducing the problem of increased maintenance costs caused by the cumbersome disassembly operation when fixing with bolts, and further improving the convenience of equipment maintenance.

Claims

1. A crystallizer for a billet continuous casting machine, comprising a support plate (1), a crystallization chamber (2) and a quick-release assembly (5), characterized in that: The crystallization chamber (2) is installed inside the support plate (1), an end cover (3) is installed on the upper surface of the crystallization chamber (2), a conduit (4) is fixedly connected to the outer circumference of the crystallization chamber (2), the conduit (4) is communicated with the inner wall of the crystallization chamber (2), the conduit (4) is fixedly connected to the upper surface of the support plate (1), the quick-release assembly (5) is arranged on the arc surface of the crystallization chamber (2), and a foot roller (6) is installed on the lower surface of the crystallization chamber (2); The quick-release assembly (5) includes a connecting unit (51), the connecting unit (51) includes an L-shaped bracket (511), the L-shaped bracket (511) abuts against the arc surface of the crystallization chamber (2), the L-shaped bracket (511) is fixedly connected to the lower surface of the foot roller (6), the side surface of the L-shaped bracket (511) is fixedly connected to a U-shaped block (512), the surface of the U-shaped block (512) is provided with a rotating hole, and the U-shaped block (512) is located inside the rotating hole. The wall is rotatably connected to a bidirectional shaft (513), the surface of the bidirectional shaft (513) is fixedly connected to a limit ring (514), both ends of the bidirectional shaft (513) are fixedly connected to a connecting sleeve (515), the surface of the connecting sleeve (515) is rotatably connected to a connecting rod (516), the side surface of the connecting sleeve (515) is fixedly connected to a positioning plate (517), and both ends of the bidirectional shaft (513) are fixedly connected to an anti-slip knob (518); The quick-release assembly (5) further comprises a constraint unit (52), the constraint unit (52) comprising a threaded sleeve (521), the threaded sleeve (521) being threadedly connected to the surface of the bidirectional shaft (513), the side surface of the threaded sleeve (521) being fixedly connected to a load-bearing plate (522), the side surface of the load-bearing plate (522) being fixedly connected to a bayonet (523), the arc surface of the crystallization chamber (2) being fixedly connected to a buckle frame (524), and the bayonet (523) being plugged into the inner wall of the buckle frame (524).

2. The crystallizer of a billet continuous casting machine according to claim 1, characterized in that: The number of the L-shaped brackets (511) is two, and the two L-shaped brackets (511) are arranged front-to-back symmetrically with respect to the crystallization chamber (2). The number of the U-shaped blocks (512) matches the number of the L-shaped brackets (511).

3. The crystallizer of a billet continuous casting machine according to claim 1, characterized in that: There are two limiting rings (514), and the two limiting rings (514) are arranged in a bilaterally symmetrical manner with respect to the U-shaped block (512). The limiting rings (514) are in contact with the surface of the U-shaped block (512).

4. The crystallizer of a billet continuous casting machine according to claim 1, characterized in that: There are two connecting rods (516), which are arranged symmetrically with respect to the crystallization chamber (2). The positioning plate (517) contacts the surface of the connecting rods (516).

5. The crystallizer of a billet continuous casting machine according to claim 1, characterized in that: The number of the anti-slip knobs (518) is four, and the four anti-slip knobs (518) are arranged diagonally with respect to the crystallization.

6. The crystallizer of a billet continuous casting machine according to claim 1, characterized in that: There are two threaded sleeves (521), and the two threaded sleeves (521) are arranged in a left-right symmetrical manner with respect to the bidirectional shaft (513).

7. The crystallizer of a billet continuous casting machine according to claim 1, characterized in that: A through hole is provided on the surface of the load-bearing plate (522), and the bidirectional shaft (513) is slidably connected to the inner wall of the through hole.

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