Crystallizer foot roller installation structure and installation method

Abstract

The invention belongs to the technical field of metallurgical continuous casting equipment, and particularly relates to a crystallizer foot roller mounting structure and method. The crystallizer comprises a crystallizer body, a foot roller assembly, a mounting seat and a positioning, fastening, buffering, fine-tuning and anti-loosening mechanism, the positioning mechanism is matched with a positioning bulge of the foot roller assembly through a positioning groove of the mounting seat to realize primary positioning, the fine-tuning mechanism is used for calibrating the position by virtue of a fine-tuning screw hole of the mounting seat, and the fastening mechanism is matched with an anti-loosening gasket or anti-loosening rubber to ensure stable connection. The installation method comprises the steps of installation base fixing, foot roller assembly positioning, cushion installation, bolt connection, position fine adjustment and inspection acceptance, the installation precision and equipment stability are improved, the installation process is simplified, the service life of equipment is prolonged, the production efficiency of a continuous casting machine and the quality of casting blanks are improved, and the service life of the continuous casting machine is prolonged. The problems that in the prior art, foot roller installation precision is low, the process is complex, and connection is prone to loosening are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical continuous casting equipment, and particularly relates to a crystallizer foot roller installation structure and an installation method. Background Art

[0002] In the continuous casting equipment of the metallurgical industry, the mold foot roller is a key device installed under the crystallizer. Its main functions include guiding the ingot rod to enter the crystallizer accurately, preventing the ingot head from colliding and damaging the lower end of the crystallizer copper tube, supporting and guiding the weak ingot shell that has just been led out of the copper tube, reducing the risk of ingot deformation or steel leakage, reducing the wear of the ingot on the lower end of the copper tube, and extending the service life of the equipment.

[0003] However, the existing installation scheme for the crystallizer foot roller has significant defects. The traditional installation structure lacks a reliable positioning and fine-tuning mechanism, which causes the foot roller to easily shift after installation, directly affecting the molding quality of the ingot; the installation process requires multiple debugging, which consumes a lot of manpower and time costs, and has low installation efficiency; the connection structure between the foot roller and the crystallizer is easy to loosen or fall off under high-temperature and high-load continuous casting conditions, causing equipment operation failure and affecting the normal production of the continuous casting machine.

[0004] Therefore, the existing technology urgently needs a crystallizer foot roller installation structure and method that can improve installation accuracy, simplify the installation process and enhance connection stability, so as to meet the requirements of metallurgical continuous casting production for equipment reliability and efficiency. Summary of the Invention

[0005] The present invention aims to provide a crystallizer foot roller installation structure and installation method to improve installation accuracy and stability, simplify the installation process, reduce installation costs, and thus improve the production efficiency of the continuous casting machine and the quality of the cast billets.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A crystallizer foot roller mounting structure comprises a crystallizer body, a foot roller assembly and a mounting seat, and further comprises a positioning mechanism, a fastening mechanism, a buffer mechanism, a fine-tuning mechanism and an anti-loosening mechanism, wherein the positioning mechanism comprises a positioning groove on the mounting seat and a positioning protrusion on the foot roller assembly, the two being adapted to each other, the fastening mechanism comprises a bolt and a nut, the mounting seat and the foot roller assembly are provided with corresponding bolt holes, the buffer mechanism is arranged between the foot roller assembly and the mounting seat, the fine-tuning mechanism comprises a fine-tuning screw hole on the mounting seat, and the anti-loosening mechanism is arranged between the bolt and the nut;

[0008] By setting a positioning groove on the mounting base that is compatible with the positioning protrusion of the foot roller assembly, the initial precise positioning of the foot roller assembly is achieved. The position can be further calibrated in conjunction with the fine-tuning screw hole on the mounting base, which solves the problem of difficult to ensure installation accuracy in the existing technology. The foot roller assembly is fixed to the mounting base with the help of a fastening mechanism composed of bolts and nuts. Combined with the anti-loosening mechanism set between the bolts and nuts, the stability of the connection in a high temperature and high load environment is ensured, and the problem of easy loosening and falling off of the connection is solved. The integrated design of positioning, buffering, fine-tuning and other mechanisms simplifies the installation process, reduces manpower and time costs, and effectively overcomes the defects of the complex installation process of the existing technology.

[0009] The buffer mechanism is an elastic buffer pad;

[0010] By arranging the elastic buffer pad between the foot roller assembly and the mounting seat, the impact force of the casting on the foot roller can be effectively buffered during the continuous casting process, reducing structural damage between the foot roller assembly and the mounting seat, thereby extending the service life of the equipment and solving the problem of severe wear of components caused by impact in the prior art.

[0011] The anti-loosening mechanism is an anti-loosening gasket or anti-loosening glue;

[0012] Mechanical limiting or bonding is used to prevent bolts and nuts from loosening under high temperature and high load conditions, ensuring that the connection between the foot roller assembly and the mounting seat always remains firm. This effectively solves the problems of insufficient connection stability and easy falling off in the existing technology, and ensures the normal operation of the continuous casting machine.

[0013] The mounting seat is fixed below the crystallizer body;

[0014] By welding or bolting, the horizontality and verticality of the mounting base are ensured to meet the requirements, providing a stable installation reference for the foot roller assembly, making the positioning and support of the foot roller more reliable, and solving the problem of unstable installation reference causing foot roller deviation in the existing technology, thereby improving the quality of the casting and the reliability of equipment operation.

[0015] A method for installing a crystallizer foot roller includes the following installation steps:

[0016] Step a, fixing the mounting base, fixing the mounting base below the crystallizer body;

[0017] Step b, positioning the foot roller assembly, aligning the positioning protrusion of the foot roller assembly with the positioning groove of the mounting seat;

[0018] Step c, installing the buffer pad, placing the buffer pad between the foot roller assembly and the mounting seat;

[0019] Step d, bolt installation, insert the bolt through the bolt hole and tighten the nut;

[0020] Step e: fine-tuning the position of the foot roller assembly through the fine-tuning screw holes;

[0021] Step f: Inspection and acceptance: check the connection firmness of the installation structure and the rotation flexibility of the foot roller.

[0022] In the step a, welding or bolt connection is adopted.

[0023] In the step d, the operation is carried out according to the diagonal tightening principle.

[0024] In the step e, a measuring tool is used to assist in the adjustment.

[0025] In the step f, ensure that the foot roller is not stuck.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The positioning mechanism and fine-tuning mechanism ensure accurate positioning and fine-tuning of the foot roller assembly, thereby improving the quality of the casting;

[0028] The design of fastening mechanism and buffer mechanism ensures a firm connection and effectively buffers impact force, thus improving structural reliability;

[0029] Clear steps and simple operation reduce manpower and time costs and improve installation efficiency;

[0030] Buffer pads and anti-loosening mechanisms can reduce structural damage and loosening, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall top view of the crystallizer foot roller installation structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 Enlarged front view of part A;

[0033] Figure 3 For the present invention Figure 1 A magnified side view of part A;

[0034] Figure 4 For the present invention Figure 1 Enlarged view of the side of the eccentric shaft.

[0035] In the figure: 1. Mounting seat; 2. Fastening mechanism; 3. Buffer pad; 4. Foot roller assembly; 5. Positioning slot; 6. Fine-tuning screw hole. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figures 1 to 4 , a crystallizer foot roller mounting structure, including a crystallizer body, a foot roller assembly 4 and a mounting seat 1, also including a positioning mechanism, a fastening mechanism 2, a buffer mechanism, a fine-tuning mechanism and an anti-loosening mechanism, the positioning mechanism includes a positioning groove 5 on the mounting seat 1 and a positioning protrusion on the foot roller assembly 4, the two are adapted, the fastening mechanism 2 includes a bolt and a nut, the mounting seat 1 and the foot roller assembly 4 are provided with corresponding bolt holes, the buffer mechanism is arranged between the foot roller assembly 4 and the mounting seat 1, the fine-tuning mechanism includes a fine-tuning screw hole 6 on the mounting seat 1, and the anti-loosening mechanism is arranged between the bolt and the nut; by arranging a positioning mechanism on the mounting seat 1 that is aligned with the foot roller assembly 4 The positioning groove 5 that matches the protrusion realizes the initial precise positioning of the foot roller assembly 4, and the position can be further calibrated in conjunction with the fine-tuning screw hole 6 on the mounting seat 1, which solves the problem of difficult to ensure installation accuracy in the prior art. The foot roller assembly 4 is fixed to the mounting seat 1 with the help of a fastening mechanism 2 composed of bolts and nuts, and the anti-loosening mechanism arranged between the bolts and nuts ensures the stability of the connection in a high temperature and high load environment, and solves the problem of easy loosening and falling off of the connection. The integrated design of positioning, buffering, fine-tuning and other mechanisms simplifies the installation process, reduces labor and time costs, and effectively overcomes the defects of the complex installation process of the prior art.

[0039] The buffering mechanism is an elastic buffer pad 3; by arranging the elastic buffer pad 3 between the foot roller assembly 4 and the mounting seat 1, the impact force of the casting on the foot roller can be effectively buffered during the continuous casting process, and the structural damage between the foot roller assembly 4 and the mounting seat 1 can be reduced, thereby extending the service life of the equipment and solving the problem of severe wear of components caused by impact in the prior art.

[0040] The anti-loosening mechanism is an anti-loosening gasket or anti-loosening glue; it prevents the bolts and nuts from loosening under high temperature and high load conditions through mechanical limiting or bonding, ensuring that the connection between the foot roller assembly 4 and the mounting seat 1 always remains firm, effectively solving the problems of insufficient connection stability and easy falling off in the existing technology, and ensuring the normal operation of the continuous casting machine.

[0041] The mounting base 1 is fixed under the crystallizer body; the horizontality and verticality of the mounting base 1 are ensured to meet the requirements by welding or bolt connection, providing a stable installation reference for the foot roller assembly 4, making the positioning and support of the foot roller more reliable, and solving the problem of unstable installation reference causing foot roller deviation in the prior art, thereby improving the quality of the casting and the reliability of equipment operation.

[0042] A method for installing a crystallizer foot roller includes the following installation steps:

[0043] Step a, fixing the mounting base 1, fixing the mounting base 1 below the crystallizer body;

[0044] Step b, positioning the foot roller assembly 4, aligning the positioning protrusion of the foot roller assembly 4 with the positioning groove 5 of the mounting seat 1;

[0045] Step c: installing the buffer pad 3 by placing the buffer pad 3 between the foot roller assembly 4 and the mounting base 1;

[0046] Step d, bolt installation, insert the bolt through the bolt hole and tighten the nut;

[0047] Step e: fine-tuning the position of the foot roller assembly 4 through the fine-tuning screw hole 6;

[0048] Step f: Inspection and acceptance: check the connection firmness of the installation structure and the rotation flexibility of the foot roller.

[0049] In step a, welding or bolting is used. In step d, the operation is carried out according to the diagonal tightening principle. In step e, measuring tools are used to assist in adjustment. In step f, it is ensured that the foot roller is not stuck.

[0050] In this embodiment, the specific implementation of the mounting structure is as follows: 1. Fabrication and installation of the mounting base 1: The mounting base 1 is made of high-strength steel, and the surface is finely processed to ensure flatness and smoothness. The size of the positioning groove 5 and the bolt hole match the foot roller assembly 4, and it is fixed by welding or bolting. Measuring tools are used to ensure that the horizontal and vertical errors are within the allowable range;

[0051] 2. Fabrication and assembly of the foot roller assembly 4: The foot roller is made of high-quality alloy steel, and the surface is quenched and ground to improve hardness and wear resistance. The roller shaft and bearing are reasonably matched according to size and load, and the positioning protrusions and bolt holes correspond to the mounting seat 1;

[0052] 3. Selection and installation of cushion 3: Use rubber or polyurethane material to make cushion 3. Select the hardness and elastic modulus according to the working conditions, and ensure that it is positioned correctly and fully covers the contact area;

[0053] 4. Adjustment of the fine-tuning screw hole 6: Process the fine-tuning screw hole 6 on the mounting base 1, and fine-tune the position of the foot roller assembly 4 by rotating the fine-tuning screw hole 6. Use a measuring tool to check the accuracy until it meets the requirements;

[0054] 5. Setting of anti-loosening mechanism: Set anti-loosening gasket or apply anti-loosening glue between the bolt and nut to ensure the stability of the connection.

[0055] In this embodiment, the specific implementation of the installation method is as follows: 1. Fixing the mounting base 1: Clean the mounting surface to ensure it is clean and flat, fix the mounting base 1 by welding or bolting, and measure and adjust the horizontality and verticality;

[0056] 2. Positioning of the foot roller assembly 4: Lift the foot roller assembly 4 so that the positioning protrusion is aligned with the positioning groove 5, and lower it slowly to avoid collision;

[0057] 3. Install the cushion pad 3: Place the cushion pad 3 and secure it to ensure it is in the correct position;

[0058] 4. Bolt installation: Insert the nuts through the bolt holes and tighten them. Follow the diagonal tightening principle to ensure uniform force. Use a torque wrench to check the tightening torque.

[0059] 5. Position fine-tuning: Use a measuring tool to check the accuracy and rotate the fine-tuning screw hole 6 to make fine adjustments until the requirements are met;

[0060] 6. Inspection and acceptance: Comprehensively check the installation structure to ensure that the connection is firm, the foot roller rotates flexibly and there is no jamming.

[0061] In summary, the crystallizer foot roller installation structure and installation method of the present invention provide an innovative solution with broad market application prospects.

[0062] It should be noted that the parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

[0063] In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "set," and "provided with" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0064] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may modify or make equivalent substitutions to the present invention without departing from the spirit and scope of the technical solution of the present invention. Such modified or equivalent substitutions shall be within the scope of the technical solution for which protection is sought, provided that they do not depart from the core design principles and functional characteristics of the present invention.

Claims

1. A crystallizer foot roller mounting structure, comprising a crystallizer body, a foot roller assembly and a mounting seat, characterized in that: It also includes a positioning mechanism, a fastening mechanism, a buffering mechanism, a fine-tuning mechanism and an anti-loosening mechanism. The positioning mechanism includes a positioning groove on the mounting seat and a positioning protrusion on the foot roller assembly, and the two are adapted to each other. The fastening mechanism includes bolts and nuts. Corresponding bolt holes are provided on the mounting seat and the foot roller assembly. The buffering mechanism is arranged between the foot roller assembly and the mounting seat. The fine-tuning mechanism includes a fine-tuning screw hole on the mounting seat. The anti-loosening mechanism is arranged between the bolts and the nuts.

2. A crystallizer foot roller mounting structure according to claim 1, characterized in that: The buffer mechanism is an elastic buffer pad.

3. The crystallizer foot roller mounting structure according to claim 1, characterized in that: The anti-loosening mechanism is an anti-loosening gasket or anti-loosening glue.

4. A crystallizer foot roller mounting structure according to claim 1, characterized in that: The mounting seat is fixed below the crystallizer body.

5. A method for installing a crystallizer foot roller, characterized in that: The installation steps are as follows: Step a, fixing the mounting base, fixing the mounting base below the crystallizer body; Step b, positioning the foot roller assembly, aligning the positioning protrusion of the foot roller assembly with the positioning groove of the mounting seat; Step c, installing the buffer pad, placing the buffer pad between the foot roller assembly and the mounting seat; Step d, bolt installation, insert the bolt through the bolt hole and tighten the nut; Step e: fine-tuning the position of the foot roller assembly through the fine-tuning screw holes; Step f: Inspection and acceptance: check the connection firmness of the installation structure and the rotation flexibility of the foot roller.

6. The method for installing a mold foot roller according to claim 5, characterized in that: In the step a, welding or bolt connection is adopted.

7. The method for installing a mold foot roller according to claim 5, characterized in that: In the step d, the operation is carried out according to the diagonal tightening principle.

8. The method for installing a mold foot roller according to claim 5, characterized in that: In the step e, a measuring tool is used to assist in the adjustment.

9. The method for installing a mold foot roller according to claim 5, characterized in that: In the step f, ensure that the foot roller is not stuck.

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