A vibration absorber for a vibration table with compensation performance

Abstract

The utility model belongs to the technical field of vibration table, specifically provide a vibration table is with compensating performance shock absorber, including elbow and two shock absorber units, two shock absorber units are located in the both ends of elbow, can retract along horizontal and vertical two directions respectively, compensate and eliminate the vibration from the vibration table. The shock absorber unit includes first connecting pipe, second connecting pipe, sealing element and bellows protection pipe, first connecting pipe and second connecting pipe each other sliding fit, make shock absorber unit have the movement allowance along the self axial direction, can compensate and eliminate the vibration from the vibration table. Sealing element is used for the contact surface sealing fit of sliding part and second connecting pipe inner hole, prevents the leakage. First connecting pipe and second connecting pipe are all equal wall thickness seamless steel pipe, compared with metal bellows, the seamless steel pipe of same diameter specification is lower in cost, and the self compressive strength is higher, is more durable, helps to reduce the maintenance cost and frequency of shock absorber.

Description

Technical Field

[0001] This application belongs to the technical field of continuous casting machine vibration table equipment, specifically a vibration damper for a vibration table with compensation performance. Background Technology

[0002] The crystallization vibration table is a specialized piece of equipment used in the continuous casting production of steel billets. During the continuous casting process, the vibration table generates high-frequency vibrations, which can prevent the outer surface of the initially solidified billet from sticking to the interface of the crystallizer, thereby ensuring the smooth progress of the continuous casting process.

[0003] The crystallization vibration table needs to be connected to a cooling water system during use. The cooling water can remove the heat from the molten steel, allowing the surface of the billet to initially solidify. Because the vibration table moves continuously at a certain frequency and amplitude during operation, while the inlet and outlet water pipes connected to it are fixed, a rigid connection would quickly lead to pipe fatigue and breakage due to vibration, causing leaks and equipment shutdowns.

[0004] To extend the service life of pipelines and reduce maintenance costs and frequency, the applicant developed and designed a vibration damper for a continuous casting machine vibration table (Chinese Patent Application No. 201520243550.6). This vibration damper adopts a double-corrugated pipe structure, utilizing the expansion and contraction properties of the corrugated pipes to compensate for and eliminate vibration waves from the vibration table, significantly reducing maintenance costs and frequency, and minimizing the impact of vibration table maintenance on production. However, the above-mentioned technical effects rely on a compound vibration damping pipe composed of double corrugated pipes. The compound vibration damping pipe is designed with a double-layer structure. Although it has higher overall fatigue strength and better vibration resistance, the structure of the two parallel corrugated pipe layers results in higher manufacturing costs and greater manufacturing difficulty. Utility Model Content

[0005] Based on the above-mentioned technical problems, this application provides a vibration damper for a vibration table with compensation performance to solve the technical problems of high manufacturing difficulty and high production cost in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide a vibration damper for a shaking table with compensation performance, comprising an elbow and two damping units, wherein the two damping units are respectively connected to both ends of the elbow; the damping unit comprises: The first connecting pipe has one end connected to the elbow, and the outer wall of the other end has a sliding part, and the sliding part has an annular sealing groove along its own circumference. The second connecting pipe is located at the end of the first connecting pipe away from the elbow, and the inner hole of the second connecting pipe is slidably engaged with the sliding part; A sealing element, disposed in the sealing groove, is used for a sealing fit between the contact surfaces of the sliding part and the inner hole of the second connecting pipe; and A corrugated protective pipe is fitted over the outside of the first connecting pipe and the second connecting pipe. One end of the corrugated protective pipe is connected to the elbow, and the other end is connected to the second connecting pipe.

[0007] In one possible implementation, the end of the second connecting pipe away from the elbow is provided with a flange connecting plate.

[0008] In one possible implementation, the corrugated protective pipe is a metal corrugated pipe.

[0009] In one possible implementation, the two ends of the corrugated protective pipe are respectively connected to sleeves, one of the sleeves is used to fit over the outside of the elbow, and the other sleeve is used to fit over the outside of the second connecting pipe, and a clamp is detachably fitted over the sleeve.

[0010] In one possible implementation, the sleeve has multiple notches extending through its own wall thickness along its circumference, and the notches divide the sleeve into multiple arc-shaped clamping pieces.

[0011] In one possible implementation, multiple sealing grooves are provided at intervals along the axial direction of the sliding portion, and the sealing element corresponds to each sealing groove.

[0012] In one possible implementation, the inner wall of the second connecting pipe is provided with an annular limiting boss at one end adjacent to the first connecting pipe.

[0013] In one possible implementation, the axial length of the first connecting pipe is greater than the axial length of the second connecting pipe.

[0014] In one possible implementation, the elbow has a 90-degree arc-shaped transition bend structure.

[0015] In one possible implementation, the sealing element is a rubber sealing ring.

[0016] Compared with the prior art, the beneficial effects of the vibration damper for shaking tables with compensation performance provided in this application are: This application provides a vibration damper for a vibration table with compensation capabilities, comprising an elbow and two damping units. The two damping units are located at both ends of the elbow and can extend and retract in both horizontal and vertical directions to compensate for and eliminate vibrations from the vibration table. Each damping unit includes a first connecting pipe, a second connecting pipe, a sealing element, and a corrugated protective pipe. The first and second connecting pipes are slidably fitted together, allowing the damping unit to have axial movement allowance, thus compensating for and eliminating vibrations from the vibration table. The sealing element seals the contact surface between the sliding part and the inner hole of the second connecting pipe to prevent leakage. Both the first and second connecting pipes are seamless steel pipes of equal wall thickness. Compared to corrugated metal pipes, seamless steel pipes of the same diameter are not only easier to obtain and have lower processing costs, but also have higher compressive strength, a smooth inner wall without wrinkles, and do not generate eddies when cooling water flows through them, resulting in stronger flow and greater durability. This helps reduce the maintenance cost and frequency of the damper, minimizing the impact of equipment downtime on production. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural schematic diagram of a vibration damper for a shaking table with compensation capabilities provided in this application. Figure 1 ; Figure 2 A structural schematic diagram of a vibration damper for a shaking table with compensation capabilities provided in this application. Figure 2 ; Figure 3 A structural schematic diagram of a vibration damper for a shaking table with compensation capabilities provided in this application. Figure 3 ; Figure 4 for Figure 3 A cross-sectional view along the AA direction; Figure 5 for Figure 4 Enlarged view of part B in the middle; Explanation of reference numerals in the attached figures: 10. Elbow; 20. Vibration damping unit; 21. First connecting pipe; 211. Sliding part; 22. Second connecting pipe; 221. Flange connecting plate; 222. Limiting boss; 23. Sealing element; 24. Corrugated protective pipe; 241. Sleeve; 242. Clamp. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0024] Please refer to the following: Figures 1 to 5 The following describes a vibration damper for a vibration table with compensation performance provided in an embodiment of this application.

[0025] This application provides a vibration damper for a vibration table with compensation performance, including an elbow 10 and two damping units 20, which are respectively connected to both ends of the elbow 10. Each damping unit 20 includes a first connecting pipe 21, a second connecting pipe 22, a sealing element 23, and a corrugated protective pipe 24. One end of the first connecting pipe 21 is connected to the elbow 10, and the outer wall of the other end forms a sliding portion 211, which has an annular sealing groove along its circumference. The second connecting pipe 22 is located at the end of the first connecting pipe 21 away from the elbow 10, and its inner hole slides in conjunction with the sliding portion 211. The sealing element 23 is located in the sealing groove and is used to seal the contact surfaces of the sliding portion 211 and the inner hole of the second connecting pipe 22. The corrugated protective pipe 24 is sleeved on the outside of the first connecting pipe 21 and the second connecting pipe 22, with one end connected to the elbow 10 and the other end connected to the second connecting pipe 22.

[0026] Compared with the prior art, the beneficial effects of the vibration damper with compensation performance provided in this application embodiment are: This application provides a vibration damper for a vibration table with compensation capabilities, comprising an elbow 10 and two damping units 20. The two damping units 20 are located at both ends of the elbow 10 and can extend and retract in both horizontal and vertical directions to compensate for and eliminate vibrations from the vibration table. Each damping unit 20 includes a first connecting pipe 21, a second connecting pipe 22, a sealing element 23, and a corrugated protective pipe 24. The first connecting pipe 21 and the second connecting pipe 22 are slidably fitted together, allowing the damping unit 20 to have axial movement allowance, thus compensating for and eliminating vibrations from the vibration table. The sealing element 23 seals the contact surfaces of the sliding part 211 and the inner bore of the second connecting pipe 22 to prevent leakage. Both the first connecting pipe 21 and the second connecting pipe 22 are seamless steel pipes with the same wall thickness. Compared with metal corrugated pipes, seamless steel pipes of the same diameter are not only easier to obtain and have lower processing costs, but also have higher compressive strength and smooth inner walls without wrinkles. When cooling water flows through the first connecting pipe 21 and the second connecting pipe 22, no eddies are generated, resulting in stronger fluidity and greater durability. This helps to reduce the maintenance cost and frequency of the vibration damper and reduce the impact of equipment downtime maintenance on production.

[0027] Elbow 10 is a right-angle elbow, specifically a 90-degree arc transition elbow. Two vibration damping units 20 are respectively installed at both ends of elbow 10, one horizontal and the other vertical, capable of compensating for vibration forces from the vibration table in both horizontal and vertical directions. The vibration compensation amount of the vibration damping unit 20 can be between 0-30mm. The length, diameter, and other parameters of the two vibration damping units 20 can be the same or different, and can be set according to the actual situation.

[0028] The vibration damping unit 20 includes a first connecting pipe 21, a second connecting pipe 22, a sealing element 23, and a corrugated protective pipe 24. Both the first connecting pipe 21 and the second connecting pipe 22 are made of seamless steel pipes through machining. The inner hole of the second connecting pipe 22 is in sliding sealing fit with the sliding part 211 of the first connecting pipe 21. A sealing groove is provided on the outer periphery of the sliding part 211, and the sealing element 23 is placed in the sealing groove to prevent water leakage in the pipe.

[0029] The first connecting pipe 21 and the elbow 10 can be fixedly connected by welding or other means. In order to facilitate the installation of the vibration damper on the pipeline of the vibration table, the end of the second connecting pipe 22 away from the elbow 10 is provided with a flange connecting plate 221. The flange connecting plate 221 is provided with multiple mounting holes at equal intervals along its circumference, and bolts are inserted into the mounting holes.

[0030] The sealing element 23 is a rubber sealing ring, and the cross-section of the sealing ring is circular, rectangular, or other shapes. The material can be nitrile rubber, fluororubber, etc.

[0031] Please see Figure 5 Multiple sealing grooves are provided at intervals along the axial direction of the sliding part 211. Each sealing element 23 corresponds to a sealing groove. The multiple sealing elements 23 work together to achieve a better sealing effect.

[0032] The corrugated protective pipe 24 can be a metal corrugated pipe, such as 304 stainless steel, which has the physical properties of high structural strength and high temperature resistance. Of course, provided that the usage requirements are met, the corrugated protective pipe 24 can also be made of other materials, such as silicone rubber.

[0033] The corrugated protective pipe 24 and the elbow 10, as well as the corrugated protective pipe 24 and the second connecting pipe 22, can be installed by welding, clamping, or other methods. The corrugated protective pipe 24 can protect the internal first connecting pipe 21 and second connecting pipe 22, providing protection against impacts and dust.

[0034] When clamping is used for fixing, in order to facilitate the fixing of the corrugated protective pipe 24, sleeves 241 are integrally connected to both ends of the corrugated protective pipe 24. The sleeves 241 are annular. One sleeve 241 is used to be fitted on the outside of the elbow 10, and the other sleeve 241 is used to be fitted on the outside of the second connecting pipe 22. A clamp 242 is detachably fitted on the outside of the sleeves 241.

[0035] When the corrugated protective pipe 24 is made of stainless steel or other metal materials, the annular sleeve 241 made of metal has high compressive strength and is not easily deformed. To allow the sleeve 241 to contract inward under the radial pressure of the clamp 242 and thus clamp onto the elbow 10 or the second connecting pipe 22, the sleeve 241 has multiple notches extending through its own wall thickness along its circumference. These notches divide the annular sleeve 241 into multiple arc-shaped clamping pieces. After the clamp 242 is installed, the clamping pieces undergo radial elastic deformation under the action of the clamp 242, achieving clamping and fixation. After the clamp 242 is removed, the deformation of the clamping pieces returns to normal.

[0036] like Figure 5 As shown, the inner wall of the second connecting pipe 22 is provided with an annular limiting boss 222 at one end adjacent to the first connecting pipe 21. The limiting boss 222 acts as a stop and limit for the first connecting pipe 21, thereby limiting the maximum movement distance of the first connecting pipe 21 and preventing the first connecting pipe 21 and the second connecting pipe 22 from separating during installation.

[0037] In manufacturing the vibration damper provided in this application embodiment, firstly, elbow 10, first connecting pipe 21, second connecting pipe 22, and corrugated protective pipe 24 with the required dimensions and shape accuracy are processed, and sealing element 23 of suitable model and specification is purchased. The sealing element 23 is installed into the sealing groove, and the first connecting pipe 21 is inserted into the inner hole of the second connecting pipe 22 and extends out from one end of the second connecting pipe 22. Then, the corrugated protective pipe 24 is fitted over the outside of the first connecting pipe 21 and the second connecting pipe 22, and the end of the first connecting pipe 21 extending out of the second connecting pipe 22 is welded and fixed to the elbow 10. Finally, the relative positions of the first connecting pipe 21 and the second connecting pipe 22 are adjusted to ensure that there is sufficient axial relative sliding space between them, and clamps 242 are used to clamp both ends of the corrugated protective pipe 24 onto the elbow 10 and the second connecting pipe 22 respectively.

[0038] Considering that the sealing element 23 is a vulnerable part and needs to be replaced when a water leakage failure occurs, in order to facilitate the replacement of the sealing element 23, the axial length of the first connecting pipe 21 is greater than the axial length of the second connecting pipe 22, so as to ensure that when the end of the first connecting pipe 21 away from the sliding part 211 is flush with the end of the second connecting pipe 22, the sliding part 211 can be exposed to the outside.

[0039] When the sealing element 23 needs to be replaced, remove the clamp 242, causing the corrugated protective pipe 24 to retract and move towards the first connecting pipe 21, and move the second connecting pipe 22 towards the elbow 10 until the sliding part 211 is exposed. The maintenance personnel clean the sealing groove and install the new sealing element 23. Finally, reset the second connecting pipe 22 and the corrugated protective pipe 24.

[0040] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibration damper for a vibration table with compensation capabilities, characterized in that, Includes an elbow (10) and two vibration damping units (20), wherein the elbow (10) is a right-angle elbow (10), and the two vibration damping units (20) are respectively connected to the two ends of the elbow (10); the vibration damping unit (20) includes: The first connecting pipe (21) is connected to the elbow (10) at one end, and a sliding part (211) is formed on the outer wall of the other end. The sliding part (211) has an annular sealing groove along its own circumference. The second connecting pipe (22) is located at the end of the first connecting pipe (21) away from the elbow (10), and the inner hole of the second connecting pipe (22) is slidably engaged with the sliding part (211); A sealing element (23) is disposed in the sealing groove for sealing the contact surfaces of the sliding part (211) and the inner hole of the second connecting pipe (22); and A corrugated protective pipe (24) is sleeved on the outside of the first connecting pipe (21) and the second connecting pipe (22). One end of the corrugated protective pipe (24) is connected to the elbow (10), and the other end is connected to the second connecting pipe (22).

2. The vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The second connecting pipe (22) is provided with a flange connecting plate (221) at the end away from the elbow (10).

3. A vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The corrugated protective pipe (24) is a metal corrugated pipe.

4. A vibration damper for a vibration table with compensation performance according to claim 1 or 3, characterized in that, The two ends of the corrugated protective pipe (24) are respectively connected to sleeves (241), one of the sleeves (241) is used to be fitted on the outside of the elbow (10), and the other sleeve (241) is used to be fitted on the outside of the second connecting pipe (22). The sleeve (241) is detachably fitted with a clamp (242).

5. A vibration damper for a vibration table with compensation performance according to claim 4, characterized in that, The sleeve (241) has multiple notches extending through its own wall thickness along its circumference, and the notches divide the sleeve (241) into multiple arc-shaped clamping pieces.

6. A vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The sealing grooves are provided at intervals along the axial direction of the sliding part (211), and the sealing element (23) corresponds to the sealing groove one by one.

7. A vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The inner wall of the second connecting pipe (22) is provided with an annular limiting boss (222) at one end adjacent to the first connecting pipe (21).

8. A vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The axial length of the first connecting pipe (21) is greater than the axial length of the second connecting pipe (22).

9. A vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The elbow (10) has a 90-degree arc transition bending structure.

10. A vibration damper for a vibration table with compensation performance according to claim 1, characterized in that, The sealing element (23) is a rubber sealing ring.

Images