Crystallizer vibration table

Abstract

The utility model discloses a vibration table of a crystallizer. The vibration table comprises a fixed frame; the vibration platform is arranged on the fixed frame, and the top of the vibration platform is connected with the crystallizer; the vibrating mechanism comprises a servo hydraulic cylinder, a main connecting rod, a fixing shaft and a supporting rod, one end of the main connecting rod is in transmission connection with the servo hydraulic cylinder, the other end of the main connecting rod is arranged on the fixing shaft in a sleeving mode, the two ends of the fixing shaft are fixed to the two sides of the fixing frame in a penetrating mode, and one end of the supporting rod is arranged in the middle of the main connecting rod; the other end of the supporting rod is fixedly connected with the top of the vibration platform; the number of the balancing rods is multiple, each balancing rod comprises a rod part, fastening blocks and a fixing block, and the two fastening blocks are arranged at the two ends of the rod part. Through the structure, the main connecting rod can be used for directly transferring force to apply a vibration effect on the vibration platform, the vibration inertia is small, and the balance rods are arranged to avoid vibration deviation.

Description

Technical Field

[0001] The utility model relates to a crystallizer vibration table and belongs to the technical field of metallurgical engineering. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] In metallurgical engineering, the continuous casting production line is the intermediate link between steelmaking and steel rolling. Its main function is to directly cast liquid molten steel into formed billets. Among them, the crystallizer is an important part of the continuous casting production line. The crystallizer is responsible for cooling and solidifying the liquid molten steel into solid billets. During this process, cooling water is continuously passed through the inside of the crystallizer to help the molten steel cool and form. The main function of the crystallizer vibration table is to support the crystallizer and make the crystallizer vibrate up and down. This vibration is to simulate arc movement, making the demoulding process easier. During the continuous casting process, when the billet is bonded to the wall of the crystallizer, if the crystallizer is fixed, it may cause the billet shell to be pulled apart, causing steel leakage. The crystallizer vibration table helps prevent the billet from bonding and being pulled apart with the copper wall of the crystallizer during the solidification process through its vibration, thereby avoiding bonding and steel leakage accidents.

[0004] The existing crystallizer vibration table generally adopts a four-bar structure, which can generally reach a frequency of 240 vibrations per minute. Due to the low vibration frequency, the pulling speed is relatively slow, and the vibration inertia of the four-bar structure is large, which is prone to deviations and even affects the life of the machine.

[0005] There is no crystallizer vibration table that can solve the above problems at present. Utility Model Content

[0006] The utility model aims to provide a crystallizer vibration table, which directly transmits force through a main connecting rod to exert a vibration effect on the vibration platform, has a small vibration inertia, and has multiple balance rods for avoiding vibration deviation.

[0007] In order to achieve the above-mentioned object, the utility model discloses the following crystallizer vibration table, which is used to apply vibration to the crystallizer, and includes:

[0008] Fixed frame;

[0009] A vibration platform, wherein the vibration platform is arranged on the fixed frame, and the top of the vibration platform is connected to the crystallizer;

[0010] A vibration mechanism, the vibration mechanism comprises a servo hydraulic cylinder, a main connecting rod, a fixed shaft and a support rod, one end of the main connecting rod is transmission-connected with the servo hydraulic cylinder, the other end of the main connecting rod is sleeved on the fixed shaft, and the two ends of the fixed shaft are passed through and fixed on both sides of the fixed frame, so that the main connecting rod can reciprocate around the fixed shaft under the drive of the servo hydraulic cylinder; one end of the support rod is arranged at the middle position of the main connecting rod, and the other end of the support rod is fixedly connected to the top of the vibration platform;

[0011] A balance bar, the balance bar comprises a bar portion, a fastening block and a fixed block, two fastening blocks are arranged at both ends of the bar portion, a pair of fastening blocks in at least one balance bar respectively abuts against two opposite surfaces on the inner side of the fixed frame; the fixed block is fixedly arranged in the middle position of the bar portion, and the fixed block is fixed on one side of the vibration platform.

[0012] Furthermore, the positions of the plurality of balancing rods near one side of the vibration platform and the balancing rod near the bottom of the fixed frame match.

[0013] Furthermore, the number of the balance rods is seven, wherein the number of the balance rods close to one side of the vibration platform is three, and the number of the balance rods close to the bottom of the fixed frame is four, so that the seven balance rods form two upper and lower square frames arranged in the fixed frame.

[0014] Furthermore, the fixing block of at least one of the balancing rods close to one side of the vibration platform is fixedly connected to the other end of the supporting rod.

[0015] Furthermore, the support rod, the rod portion and the fastening block are made of titanium alloy.

[0016] Furthermore, the fastening block comprises a nut which can be adjusted along the middle direction of the rod, so that the pre-tightening force of the rod received by the fastening blocks on both sides can be changed.

[0017] Furthermore, the top of the vibration platform has a flat surface, and the edge of the flat surface includes a plurality of through holes for placing the crystallizer.

[0018] Furthermore, the vibration platform includes four vibration columns, which are arranged at four corners of the vibration platform, and one of the vibration columns corresponds to one of the through holes.

[0019] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0020] 1. The crystallizer vibration table of the utility model can directly drive the larger main connecting rod to reciprocate around the fixed axis at high frequency through the servo hydraulic cylinder in the vibration mechanism. The driving part has a large profit ratio and can easily achieve 420 vibrations per minute. High pulling speed can be achieved through high vibration speed to improve output.

[0021] 2. The crystallizer vibration table of the utility model includes a plurality of balance bars made of titanium alloy at the upper and lower parts of the fixed frame. The fastening blocks on both sides of the balance bar can be adjusted to achieve control of the oscillation range, so that the deviation of the utility model is small during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 is a cross-sectional view of a crystallizer vibration table provided in an embodiment of this specification;

[0024] Figure 2 It is an axonometric diagram of a crystallizer vibration table provided in an embodiment of this specification;

[0025] In the figure: 1, fixed frame; 2, vibration platform; 21, through hole; 3, vibration mechanism; 31, servo hydraulic cylinder; 32, main connecting rod; 33, fixed shaft; 34, support rod; 4, balance rod; 41, rod; 42, fastening block; 43, fixing block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0027] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0028] See also Figure 1-2 , is a crystallizer vibration table of this embodiment, used to apply vibration to the crystallizer, including:

[0029] Fixed frame 1;

[0030] A vibration platform 2, the vibration platform 2 is arranged on the fixed frame 1, and the top of the vibration platform 2 is connected to the crystallizer;

[0031] The vibration mechanism 3 includes a servo hydraulic cylinder 31, a main connecting rod 32, a fixed shaft 33 and a support rod 34. One end of the main connecting rod 32 is connected to the servo hydraulic cylinder 31 by transmission, and the other end of the main connecting rod 32 is sleeved on the fixed shaft 33. Both ends of the fixed shaft 33 are fixed on both sides of the fixed frame 1 so that the main connecting rod 32 can swing back and forth around the fixed shaft 33 under the drive of the servo hydraulic cylinder 31; one end of the support rod 34 is set in the middle position of the main connecting rod 32, and the other end of the support rod 34 is fixedly connected to the top of the vibration platform 2;

[0032] The balancing rod 4, the number of the balancing rod 4 is multiple, the balancing rod 4 includes a rod portion 41, a fastening block 42 and a fixing block 43, two fastening blocks 42 are arranged at both ends of the rod portion 41, and a pair of fastening blocks 42 in one balancing rod 4 are respectively abutted against two opposite surfaces on the inner side of the fixed frame 1; the fixing block 43 is fixedly arranged in the middle position of the rod portion 41, and the fixing block 43 is fixed on one side of the vibration platform 2.

[0033] Through the above structure, when in use, when the molten steel flows through the crystallizer and needs to be vibrated and separated, the staff only needs to start the servo hydraulic cylinder 31 in the vibration mechanism 3 to operate, and the driving head of the servo hydraulic cylinder 31 can generate an impact work perpendicular to the top of the vibration platform 2, and drive one end of the main connecting rod 32 to undergo the same movement drive. At this time, since the other end of the main connecting rod 32 is sleeved on the fixed shaft 33, and the two ends of the fixed shaft 33 are rotatably penetrated on the fixed frame 1, the main connecting rod 32 can reciprocate around the position of the fixed shaft 33 under the indirect drive of the servo hydraulic cylinder 31. At this time, since the fixed shaft 33 structure is fixed in the middle position of the main connecting rod 32, and the top of the fixed shaft 33 is fixedly connected to one side of the top of the vibration platform 2, the swinging potential energy of the main connecting rod 32 is transmitted to the top of the vibration platform 2 through the fixed shaft 33, and converted into vibration of the top of the vibration platform 2. At this point, the external crystallizer connected to the top of the vibration platform 2 can vibrate at a high speed to avoid the adhesion of the ingot to the inner wall of the crystallizer, while maintaining a high vibration frequency, so that the pulling speed is greatly improved and the steel-out speed is accelerated. At the same time, due to the setting of multiple balance rods 4, in the event that the servo hydraulic cylinder 31 vibrates uncontrollably with a large amplitude, the balance rod 4 made of titanium alloy or other metal materials with a certain toughness can transform the large amplitude vibration into the telescopic deformation of the rod portion 41 of the balance rod 4 along its own direction through its own deformation, and finally resolve the large amplitude vibration into an acceptable preset vibration amplitude. Therefore, during the vibration process, the deviation and even mechanical damage caused by the large amplitude vibration are avoided.

[0034] In the above working process of the present embodiment, compared with the traditional four-bar structure, in the present embodiment, only a relatively large-power servo hydraulic cylinder 31 is arranged on one side of the fixed frame 1, and the swing of the main connecting rod 32 around the fixed axis 33 driven by the servo hydraulic cylinder 31 is converted into vibration of the top. Since the main connecting rod 32 runs through most of the vibration platform 2, the main connecting rod 32 maintains the largest possible size, and the distance between the two ends of the main connecting rod 32 is longer, that is, the force arm of the vibration applied to the vibration platform 2 is longer. Therefore, under the drive of the servo hydraulic cylinder 31 with the same mechanical power, a smaller vibration amplitude can be achieved through the main connecting rod 32 with a longer force arm, and a faster vibration speed can be achieved. The maximum vibration frequency of the vibration platform 2 can reach 420 times per minute. Compared with the existing vibration platform that is limited by the small force arm and can only reach a vibration frequency of 240 times, it has a higher pulling speed and can significantly improve production efficiency.

[0035] At the same time, in order to avoid damage to the crystallizer vibration table of the utility model caused by inevitable accidental large-amplitude vibration due to excessively high vibration frequency, in this embodiment, multiple groups of balance rods with a certain toughness are interspersed between the inner walls of the vibration platform 2 to achieve the resolution of vibrations exceeding the preset amplitude, thereby achieving the ability to maintain the crystallizer vibration table in a relatively stable working state under high-frequency vibration.

[0036] Further, the positions of the multiple balance bars 4 near the side of the vibration platform 2 and the balance bars 4 near the bottom of the fixed frame 1 match. Specifically, the number of balance bars 4 is seven, of which the number of the multiple balance bars 4 near the side of the vibration platform 2 is three, and no balance bar 4 is set in the space on the side of the crystallizer electromagnetic stirrer. The number of balance bars 4 near the bottom of the fixed frame 1 is four, so that the seven balance bars 4 are surrounded by two upper and lower square frames set in the fixed frame 1, and at least one of the fixed blocks 43 of the balance bar 4 near the side of the vibration platform 2 is fixedly connected to the other end of the support rod 34. With the above structure, the fixed frame 1 can be set as a traditional rectangular body structure, which includes four walls, and each of the seven balance bars 4 is respectively abutted against the inner wall surface of the two fixed frames 1, so that the four walls of the fixed frame 1 have better balance. Among them, a square frame is formed by three balance bars 4 on one side close to the top of the vibration platform 2 and the space for the crystallizer electromagnetic stirrer on one side. The fixed block 43 in the middle position of two relatively arranged balance bars 4 and the support bar 34 of the vibration mechanism 3 are also fixedly connected. The purpose is to make the top of the vibration platform 2, the support bar 34 and the balance bar 4 connected as a whole when the support bar 34 drives the vibration platform 2 to vibrate, so that the vibration input of the support bar 34 to the vibration platform 2 is more balanced, and the excess large-amplitude vibration will be eliminated by the balance bar 4.

[0037] Furthermore, the support rod 34, the rod portion 41 and the fastening block 43 are made of titanium alloy. Specifically, titanium alloy has the advantages of high temperature resistance and corrosion resistance, is suitable for use in harsh environments of metallurgical processes, and has a long service life. At the same time, titanium alloy has good ductility and elasticity. During vibration, the titanium alloy itself undergoes elastic deformation and then quickly returns to its original position, so that vibrations exceeding the preset amplitude can be better resolved.

[0038] Furthermore, the fastening block 43 includes a nut (not shown) that can be adjusted along the middle direction of the rod 41, so that the pre-tightening force of the rod 41 from the fastening blocks 43 on both sides can be changed. Specifically, pre-tightening can be used to eliminate the gap between moving parts, improve the rigidity of the structure, and reduce the deformation under the action of external forces, thereby improving the rigidity and precision of the system. However, according to the different requirements of different installation effects, there are also different requirements for the setting degree of pre-tightening force. Therefore, in this embodiment, the nut can be freely adjusted to the front and back of the rod 41 to achieve the change of the metal tension of the rod 41, so as to finally achieve the desired pre-tightening effect.

[0039] Furthermore, the top of the vibration platform 2 has a flat surface, and the edge of the flat surface includes a plurality of through holes 21 for placing the crystallizer. At the same time, the vibration platform 2 includes four vibration columns, and the four vibration columns are arranged at the four corners of the vibration platform, and one vibration column corresponds to a through hole 21. In actual use, the base of the crystallizer in this embodiment has convex grooves corresponding to the through holes 21 at the four corners, so that the base of the crystallizer is more evenly stressed and easy to disassemble and maintain.

[0040] Although different specific embodiments are mentioned in the content of this application, this application is not limited to the situations described in the industry standards or embodiments, etc. Some industry standards or slightly modified implementation plans based on the implementation of the custom methods or embodiments can also achieve the same, equivalent or similar, or predictable implementation effects after deformation of the above embodiments. The embodiments of data acquisition, processing, output, judgment methods, etc. after these modifications or deformations can still fall within the scope of the optional implementation plans of this application.

[0041] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A crystallizer vibration table, used to apply vibration to a crystallizer, characterized in that: include: Fixed frame; A vibration platform, wherein the vibration platform is arranged on the fixed frame, and the top of the vibration platform is connected to the crystallizer; A vibration mechanism, the vibration mechanism comprises a servo hydraulic cylinder, a main connecting rod, a fixed shaft and a support rod, one end of the main connecting rod is transmission-connected with the servo hydraulic cylinder, the other end of the main connecting rod is sleeved on the fixed shaft, and the two ends of the fixed shaft are passed through and fixed on both sides of the fixed frame, so that the main connecting rod can reciprocate around the fixed shaft under the drive of the servo hydraulic cylinder; one end of the support rod is arranged at the middle position of the main connecting rod, and the other end of the support rod is fixedly connected to the top of the vibration platform; A balance bar, the balance bar comprises a bar portion, a fastening block and a fixed block, two fastening blocks are arranged at both ends of the bar portion, a pair of fastening blocks in at least one balance bar respectively abuts against two opposite surfaces on the inner side of the fixed frame; the fixed block is fixedly arranged in the middle position of the bar portion, and the fixed block is fixed on one side of the vibration platform.

2. The crystallizer vibration table according to claim 1, characterized in that: The positions of the plurality of balancing bars near one side of the vibration platform and the balancing bar near the bottom of the fixed frame match each other.

3. The crystallizer vibration table according to claim 2, characterized in that: The number of the balance poles is seven, wherein the number of the balance poles close to one side of the vibration platform is three, and the number of the balance poles close to the bottom of the fixed frame is four, so that the seven balance poles form two upper and lower square frames arranged in the fixed frame.

4. The crystallizer vibration table according to claim 2, characterized in that: The fixing block of at least one balancing rod close to one side of the vibration platform is fixedly connected to the other end of the supporting rod.

5. The crystallizer vibration table according to claim 1, characterized in that: The support rod, the rod portion and the fastening block are made of titanium alloy.

6. The crystallizer vibration table according to claim 1, characterized in that: The fastening block comprises a nut which can be adjusted along the middle direction of the rod, so that the pre-tightening force of the rod from the fastening blocks on both sides can be changed.

7. The crystallizer vibration table according to claim 1, characterized in that: The top of the vibration platform has a flat surface, and the edge of the flat surface includes a plurality of through holes for placing the crystallizer.

8. The crystallizer vibration table according to claim 7, characterized in that: The vibration platform comprises four vibration columns, which are arranged at four corners of the vibration platform, and one of the vibration columns corresponds to one of the through holes.

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