Vibration reduction device of vibration table

Abstract

The utility model discloses a vibration table damping device which comprises a foundation and a damping platform, and the foundation is at least used for reducing vibration generated by a vibration generator. The foundation comprises an anti-vibration groove, a concrete layer is arranged in the anti-vibration groove, and a vibration reduction layer is arranged below the anti-vibration groove. A protective wall is arranged on the side edge of the anti-vibration groove; the vibration reduction platform is arranged above the foundation, a first elastic assembly is arranged between the connecting plate and the vibration reduction platform, the first elastic assembly is at least used for reducing impact of vibration generated by the vibration generator on the ground, and the vibration generator is arranged on the vibration reduction platform. The foundation and the first elastic assembly can greatly buffer vibration generated by the vibration generator, namely, impact of thrust of the vibration generator on the ground in the test process is greatly reduced, damage to surrounding buildings is reduced, collapse of the surrounding buildings is avoided, and meanwhile space needed by the test is greatly saved.

Description

Technical Field

[0001] This utility model relates to a vibration table damping device, belonging to the technical field of vibration testing devices. Background Technology

[0002] Vibration testing simulates the various vibration environments a product encounters during transportation, installation, and use. It determines a product's ability to withstand various environmental vibrations. Vibration testing evaluates the resistance of components, parts, and complete machines to expected transportation and usage environments.

[0003] During vibration testing, the vibration is directly transmitted to the ground. For vibration generators with large tonnage, such as those that generate thrust of 35 tons, 50 tons or more, the vibration will have a significant impact on the ground and may even affect surrounding buildings, potentially causing them to collapse.

[0004] To address this technical problem, the existing solution is to design a dedicated foundation. Generally, the foundation's quality requirement is 10 to 20 times the thrust of the vibrating table. This inevitably leads to the need for a sufficiently large space to place the high-thrust vibrating table, resulting in a waste of space resources. Furthermore, a large foundation also means higher pouring costs. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a method that can alleviate the reaction force of the shaking table on the foundation, so that a foundation with a smaller mass can be designed to meet the use of the shaking table, thereby reducing the cost of foundation pouring and the waste of space.

[0006] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0007] A vibration damping device for a vibration table includes a foundation and a damping platform. The foundation is used to reduce vibrations generated by a vibration generator. The foundation includes a vibration damping groove containing a concrete layer, and a damping layer is provided below the vibration damping groove. A protective wall is provided on the side of the vibration damping groove. The damping platform is positioned above the foundation, and a first elastic component is provided between a connecting plate and the damping platform. The first elastic component is used to reduce the impact of vibrations generated by the vibration generator on the ground. The vibration generator is positioned on the damping platform.

[0008] Furthermore, the vibration damping layer includes a pebble layer.

[0009] Furthermore, the pebble layer is laid flat below the vibration damping groove.

[0010] Furthermore, a sinking groove is provided on the upper surface of the concrete layer, and the sinking groove is used to place the vibration table.

[0011] Furthermore, a first damper is provided between the connecting plate and the vibration damping platform, with one end of the first damper connected to the connecting plate and the other end of the first damper connected to the vibration damping platform.

[0012] Furthermore, the vibration generator and the mounting base are connected via a trunnion connection assembly.

[0013] Furthermore, the trunnion connection assembly includes a trunnion support plate and a trunnion support frame, the trunnion support plate being fixedly connected to the vibration generator; the trunnion support frame being fixedly connected to the wall plate of the fixed base; and a second elastic component being provided between the trunnion support plate and the trunnion support frame to reduce the vibration generated by the vibration generator.

[0014] Furthermore, a second damper and a third elastic component are provided between the vibration damping platform and the fixed base. One end of the second damper is connected to the vibration damping platform, and the other end of the second damper is connected to the fixed base.

[0015] Furthermore, the first elastic component includes a first damping airbag or a first damping spring.

[0016] Furthermore, the second elastic component includes a second damping airbag or a second damping spring.

[0017] Compared with the prior art, the advantages of this utility model include:

[0018] 1) The vibration table damping device provided by this utility model can greatly reduce the vibration generated by the vibration generator, that is, greatly reduce the impact of the vibration generator's thrust on the ground during the test, reduce the damage to surrounding buildings, avoid the collapse of surrounding buildings, and also greatly save the space required for the test.

[0019] 2) The vibration table damping device provided by this utility model, wherein the first damper can transmit the vibration on the vibration platform to the foundation, and at the same time prevent uneven stress on the foundation.

[0020] 3) The vibration damping device for a vibration table provided by this utility model, wherein the second damper can transmit the vibration on the vibration damping platform to the vibration table, and at the same time can prevent the vibration table from being subjected to uneven impact force. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the vibration table damping device provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the vibration table damping device in Embodiment 1 and Embodiment 2 of this utility model;

[0024] Figure 3 This is a schematic diagram of the vibration table damping device in Embodiment 3 of this utility model;

[0025] Figure 4 This is a schematic diagram of the vibration table damping device in Embodiment 4 of this utility model;

[0026] Figure 5 This is a schematic diagram of the vibration table damping device in Embodiment 5 of this utility model;

[0027] Figure 6 This is a schematic diagram of the foundation in Embodiment 2 of this utility model;

[0028] Figure 7 This is a schematic diagram of the foundation in Embodiment 1 of this utility model;

[0029] Explanation of reference numerals in the attached drawings: 1. Foundation; 2. Vibration damping platform; 3. First elastic component; 4. First damper; 5. Trunnion vibration damping component; 6. Second damper; 7. Connecting plate; 8. Third elastic component; 11. Vibration damping groove; 13. Vibration damping layer; 14. Protective wall; 15. Sinking groove; 52. Second elastic component; 100. Vibration generator; 200. Fixing seat. Detailed Implementation

[0030] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0031] Example 1:

[0032] like Figure 1 , Figure 2 , Figure 7As shown, a vibration damping device for a vibration table includes a foundation 1 and a vibration damping platform 2. The foundation 1 includes a vibration damping groove 11, within which a concrete layer is provided. The upper surface of the concrete layer is flat, and the vibration table is placed on the concrete layer of the foundation 1. A vibration damping layer 13, comprising a pebble layer, is provided below the vibration damping groove 11. The pebble layer is laid flat below the vibration damping groove 11. Below the pebble layer is a soil layer. A protective wall 14 is provided on the side of the vibration damping groove 11.

[0033] The vibration damping platform 2 is disposed above the foundation 1 and is connected to the foundation 1 via a connecting plate 7. A first elastic component 3 is disposed between the connecting plate 7 and the vibration damping platform 2. The first elastic component 3 is used to at least reduce the impact of the vibration generated by the vibration generator 100 on the ground. The first elastic component 3 includes 25 first vibration damping airbags, which are disposed between the vibration damping platform 2 and the foundation 1. A fixed seat 200 is disposed outside the vibration generator 100. The vibration generator and the fixed seat are connected by a rigid trunnion. The fixed seat 200 and the vibration generator 100 form a vibration table, which is disposed on the vibration damping platform 2.

[0034] Example 2:

[0035] like Figure 1 , Figure 2 , Figure 6 As shown, a vibration damping device for a vibration table includes a foundation 1 and a vibration damping platform 2. The foundation 1 includes a vibration damping groove 11, within which a concrete layer is provided. A sinkhole 15, 500 mm deep, is provided on the upper surface of the concrete layer, and the vibration table is fixed within the sinkhole 15. A vibration damping layer 13, comprising a pebble layer, is provided below the vibration damping groove 11. The pebble layer is laid flat below the vibration damping groove 11. Below the pebble layer is a soil layer. A protective wall 14 is provided on the side of the vibration damping groove 11.

[0036] The vibration damping platform 2 is set above the foundation 1, and the vibration damping platform 2 is connected to the foundation 1 through the connecting plate 7. A first elastic component 3 is provided between the connecting plate 7 and the vibration damping platform 2. The first elastic component 3 includes 25 first vibration damping springs, and the 25 first vibration damping springs are evenly arranged between the vibration damping platform 2 and the foundation 1.

[0037] The foundation 1 and the first elastic component 3 described in this application can greatly reduce the vibration generated by the vibration generator 100, that is, greatly reduce the impact of the thrust of the vibration generator 100 on the ground during the test, reduce the damage to the surrounding buildings, avoid the collapse of the surrounding buildings, and also greatly save the space required for the test.

[0038] Example 3:

[0039] like Figure 2 , Figure 3 , Figure 7 As shown, a vibration damping device for a vibration table includes a foundation 1 and a vibration damping platform 2. The foundation 1 includes a vibration damping groove 11, within which a concrete layer is provided. The upper surface of the concrete layer is flat, and the vibration table is placed on the concrete layer of the foundation 1. A vibration damping layer 13, comprising a pebble layer, is provided below the vibration damping groove 11. The pebble layer is laid flat below the vibration damping groove 11. Below the pebble layer is a soil layer. A protective wall 14 is provided on the side of the vibration damping groove 11.

[0040] The vibration damping platform 2 is positioned above the foundation 1 and connected to the foundation 1 via a connecting plate 7. Twenty first vibration damping airbags are positioned between the foundation 1 and the vibration damping platform 2. A first damper 4 is positioned between the connecting plate 7 and the vibration damping platform 2. The first damper 4 is inclined, with one end connected to the connecting plate 7 and the other end connected to the vibration damping platform 2. The first damper 4 is used to prevent uneven stress on the foundation 1.

[0041] The first damper 4 in this application can transmit the vibration on the vibration platform to the foundation 1, and at the same time prevent the foundation 1 from being subjected to uneven force.

[0042] Example 4:

[0043] like Figure 1 , Figure 4 , Figure 6 As shown, a vibration damping device for a vibration table includes a foundation 1 and a vibration damping platform 2. The foundation 1 includes a vibration damping groove 11, within which a concrete layer is provided. A sinkhole 15 is provided on the upper surface of the concrete layer, and the vibration table is fixed within the sinkhole 15. A vibration damping layer 13, comprising a pebble layer, is provided below the vibration damping groove 11. The pebble layer is laid flat below the vibration damping groove 11. Below the pebble layer is a soil layer. A protective wall 14 is provided on the side of the vibration damping groove 11. The vibration damping platform 2 is positioned above the foundation 1, and 25 first vibration damping springs are evenly distributed between the foundation 1 and the vibration damping platform 2.

[0044] A trunnion support plate and a trunnion support frame are provided between the vibration generator and the fixed base 200. The trunnion support plate is fixedly connected to the vibration generator. The trunnion support frame is fixedly connected to the wall plate of the fixed base. A second damping airbag is provided between the trunnion support plate and the trunnion support frame to reduce the vibration generated by the vibration generator.

[0045] Example 5:

[0046] The difference between this embodiment and embodiment four is that: Figure 4 As shown, a second damper 6 and a third elastic component 8 are provided between the vibration damping platform 2 and the fixed base. The second damper 6 is inclined, one end of the second damper 6 is connected to the vibration damping platform 2, and the other end of the second damper 6 is connected to the fixed base.

[0047] The second damper 6 in this application can transmit the vibration on the vibration damping platform 2 to the vibration table, and at the same time prevent the vibration platform from receiving uneven impact forces.

[0048] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vibration table damping device, characterized by: Comprising a foundation (1) for at least reducing the vibration generated by a vibration generator (100); the foundation (1) comprises a vibration-proof groove (11) in which a concrete layer is arranged, and a vibration-reducing layer (13) is arranged below the vibration-proof groove (11); a protective wall (14) is arranged on the side of the vibration-proof groove (11); a vibration-reducing platform (2) arranged above the foundation (1) and connected with the foundation (1) through a connecting plate (7), a first elastic component (3) is arranged between the connecting plate (7) and the vibration-reducing platform (2), the first elastic component (3) is used for at least reducing the impact of the vibration generated by the vibration generator (100) on the ground, and the vibration generator (100) is arranged on the vibration-reducing platform (2).

2. The vibration table damping device of claim 1, wherein: The vibration-reducing layer (13) comprises a cobblestone layer. And / or, the cobblestone layer is paved below the vibration-proof groove (11).

3. The vibration table damping device of claim 1, wherein: The upper end surface of the concrete layer is provided with a sunken groove (15) for placing a vibration table.

4. The vibration table damping device of claim 1, wherein: A first damper (4) is arranged between the connecting plate (7) and the vibration-reducing platform (2), one end of the first damper (4) is connected with the connecting plate (7), and the other end of the first damper (4) is connected with the vibration-reducing platform (2).

5. The vibration table damping device of claim 1, wherein: The vibration generator and the fixed seat are connected through a trunnion connecting assembly.

6. The vibration table damping device of claim 5, wherein: The trunnion connecting assembly comprises a trunnion support plate and a trunnion support frame, the trunnion support plate is fixedly connected with the vibration generator (100); the trunnion support frame is fixedly connected with the wall plate of the fixed seat, and a second elastic component (52) is arranged between the trunnion support plate and the trunnion support frame, the second elastic component (52) is used for reducing the vibration generated by the vibration generator (100).

7. The vibration table damping device of claim 1, wherein: A second damper (6) and a third elastic component (8) are arranged between the vibration-reducing platform (2) and the fixed seat, one end of the second damper (6) is connected with the vibration-reducing platform (2), and the other end of the second damper (6) is connected with the fixed seat.

8. The vibration table damping device of claim 1, wherein: The first elastic component (3) comprises a first vibration-reducing air bag or a first vibration-reducing spring.

9. The vibration table damping device of claim 6, wherein: The second elastic component comprises a second vibration-reducing air bag or a second vibration-reducing spring.

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