Self-assembled and self-adaptive rub-impact damper

Abstract

The invention provides a self-assembled and self-adaptive rub-impact damper. The self-assembled and self-adaptive rub-impact damper comprises a plurality of damping units which are fixedly mounted on a vibration platform or fixedly mounted on a vibration platform after being freely combined. Each damping unit comprises a shell and an intermediate container. The shell is provided with an accommodating cavity. The middle container is fixedly arranged in the containing cavity and provided with a plurality of unit cavities arranged in a matrix mode, and rub-impact filling particles are arranged in each unit cavity. According to the self-assembled and self-adaptive rub-impact type damper, the adaptive effect for different vibration platforms can be effectively improved, meanwhile, it can be guaranteed that all the rub-impact filling particles can act effectively, the filling rate of the unit cavities is optimized in a self-adaptive mode, and the vibration reduction effect is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of shock absorbers, and in particular relates to a self-assembling adaptive friction damper. Background Art

[0002] In the engineering field, such as mechanical equipment, building structures, and transportation, vibration problems are common and have far-reaching impacts. Long-term vibration will lead to performance degradation, structural damage, and even increase safety hazards. Effective vibration control can improve the reliability and life of the system, reduce maintenance costs, and ensure safe production. By installing appropriate vibration control on the vibration platform, the dynamic performance of the vibration platform can be significantly improved.

[0003] In the prior art, when a vibration platform is in a vibration environment, the vibration reduction method for the vibration platform is usually to use vibration reduction means such as springs and damping particles. However, the above-mentioned vibration reduction methods usually need to be manufactured and produced according to the volume of the vibration platform, which is time-consuming and labor-intensive, and has poor adaptability. The spring vibration reduction method needs to be coordinated with a mass block, and the structure is complex and the vibration reduction direction is single, resulting in poor vibration reduction effect. As one of the effective vibration reduction means, damping particles need to be provided with a containing carrier for containing them at the same time. However, the containing cavity of the containing carrier is large, and the number of damping particles is large, so the actual vibration reduction effect is poor. Summary of the invention

[0004] The embodiment of the present invention provides a self-assembling adaptive friction damper, which aims to solve the problem that various existing vibration reduction means have poor practicality due to the inability to adapt to different vibration platforms and poor vibration reduction effect.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a self-assembling adaptive friction damper, comprising a plurality of vibration reduction units which are fixedly installed on a vibration platform respectively or after free combination; wherein,

[0006] Each of the vibration reduction units comprises:

[0007] A housing having a receiving cavity;

[0008] The intermediate container is fixedly arranged in the accommodating cavity and has a plurality of unit cavities arranged in a matrix, and each of the unit cavities is provided with friction filling particles.

[0009] In a possible implementation, each of the unit cavities is a cubic cavity.

[0010] In a possible implementation, the intermediate container includes:

[0011] There are at least two friction boxes, and the friction boxes are stacked in sequence; each of the friction boxes has a first contact surface and a second contact surface arranged in parallel and spaced apart, and a plurality of grooves are arranged in a matrix on the first contact surface; the first contact surface of each friction box abuts against the second contact surface of an adjacent friction box or the inner wall surface of the accommodating cavity, so that the grooves enclose each unit cavity.

[0012] In a possible implementation, each of the friction boxes has a rectangular parallelepiped structure.

[0013] In a possible implementation, a partition portion is formed between any two adjacent grooves in each of the friction boxes, and an arc-shaped notch is provided at the end of each of the partition portions located on the first contact surface.

[0014] In a possible implementation, the housing includes:

[0015] A box body having an open cavity;

[0016] The cover plate is buckled at the opening of the opening cavity and is detachably connected to the box body.

[0017] In a possible implementation, the box body has two parallel and spaced connection end surfaces, and each of the connection end surfaces is provided with two spaced first connection portions and two spaced second connection portions;

[0018] The spacing direction of the two first connection parts is perpendicular to the spacing direction of the two connection end faces; the spacing direction of the two second connection parts is perpendicular to the spacing direction of the two first connection parts and perpendicular to the spacing direction of the two connection end faces.

[0019] In a possible implementation, the box body is a rectangular parallelepiped structure;

[0020] Wherein, the two connecting end surfaces are located at two ends of the length direction of the box body.

[0021] In a possible implementation, each of the connecting end faces is provided with a rectangular open groove, and the rectangular open groove forms two parallel first side walls and two parallel second side walls;

[0022] The two first connection parts are respectively arranged on the two first side walls, and the two second connection parts are respectively arranged on the two second side walls.

[0023] In a possible implementation, a plurality of slide grooves are provided on the inner wall of the open cavity, and each of the slide grooves is arranged along the opening direction of the open cavity; and a plurality of ridges that can be respectively matched with each of the slide grooves are provided on the outer wall of the intermediate container.

[0024] In this implementation, multiple vibration reduction units are fixedly installed separately or combined and fixedly installed on the corresponding vibration platform, which can effectively improve the adaptation effect, can be adjusted according to the volume of the vibration platform, and is easy to manufacture. The multiple unit cavities arranged in a matrix in each vibration reduction unit store the friction filling particles separately, which can avoid the accumulation of friction filling particles at the bottom, thereby ensuring that each friction filling particle can move, effectively improving the vibration reduction efficiency of small or even weak vibrations, ensuring the vibration reduction effect, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a self-assembling adaptive friction damper provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the explosion structure of a self-assembled adaptive friction damper provided by an embodiment of the present invention;

[0027] Figure 3 A schematic cross-sectional view of a self-assembling adaptive friction damper provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of a specific implementation structure of a self-assembling adaptive friction damper provided in an embodiment of the present invention Figure 1 ;

[0029] Figure 5 A schematic diagram of a specific implementation structure of a self-assembling adaptive friction damper provided in an embodiment of the present invention Figure 2 ;

[0030] Figure 6 A schematic diagram of a specific implementation structure of a self-assembling adaptive friction damper provided in an embodiment of the present invention Figure 3 .

[0031] Description of reference numerals:

[0032] 100. Vibration reduction unit; 10. Shell; 11. Box body; 12. Cover plate; 13. Rectangular open groove; 14. First connecting part; 15. Second connecting part; 16. Slide groove; 17. Protruding ridge; 20. Intermediate container; 21. Friction box; 22. Unit cavity; 23. First contact surface; 24. Groove; 25. Partition part; 26. Arc-shaped notch; 30. Friction filling particles; 200. Vibration platform; 300. Connecting carrier. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] Please also read Figures 1 to 3 Now, the self-assembling adaptive friction damper provided by the present invention is described.

[0035] When the containing cavity for accommodating the carrier is larger, the corresponding damping particles are also more. The damping particles will form an accumulation due to their own gravity. When the vibration platform 200 vibrates, the damping particles at the bottom are compressed and unable to move, thereby failing to achieve the vibration reduction effect and having a low utilization rate.

[0036] Based on this, the self-assembly adaptive friction damper provided by the present invention includes a plurality of vibration reduction units 100 which are fixedly installed on a vibration platform 200 respectively or after free combination. Each vibration reduction unit 100 includes a shell 10 and an intermediate container 20. The shell 10 has a receiving cavity. The intermediate container 20 is fixedly arranged in the receiving cavity and has a plurality of unit cavities 22 arranged in a matrix, and each unit cavity 22 is provided with friction filling particles 30.

[0037] Compared with the prior art, the self-assembly adaptive friction damper provided in this embodiment can effectively improve the adaptation effect by fixing or assembling a plurality of vibration reduction units 100 on the corresponding vibration platform 200, and can be adjusted according to the volume of the vibration platform 200, which is convenient for production and manufacturing. The plurality of unit cavities 22 arranged in a matrix in each vibration reduction unit 100 respectively store the friction filling particles 30, which can avoid the accumulation of the friction filling particles 30 at the bottom, thereby ensuring that each friction filling particle 30 can be moved, which can ensure the vibration reduction effect and has strong practicality.

[0038] It should be noted that the friction filling particles 30 may be spherical metal particles, such as copper particles, iron particles, etc. Of course, they may also be particles of other shapes, sizes and materials that can achieve damping.

[0039] In some embodiments, the unit cavity 22 may be formed as follows: Figure 2 and Figure 3 See the structure shown. Figure 2 and Figure 3 Each unit cavity 22 is a cubic cavity. This structure can ensure the uniformity of the matrix arrangement of each unit cavity 22, and can also ensure that the stroke of the friction filling particles 30 is consistent when controlling vibration in different directions, thereby enhancing the applicability of vibration reduction.

[0040] In some embodiments, the intermediate container 20 may be formed as follows: Figure 2 See the structure shown. Figure 2 The intermediate container 20 includes a friction box 21, at least two of which are provided, and each friction box 21 is stacked and stacked in sequence. Each friction box 21 has a first contact surface 23 and a second contact surface arranged in parallel and spaced apart, and a plurality of grooves 24 are provided in a matrix on the first contact surface 23. The first contact surface 23 of each friction box 21 abuts against the second contact surface of an adjacent friction box 21 or the inner wall surface of the accommodating cavity, so that each groove 24 encloses each unit cavity 22, and at this time, each unit cavity 22 is in the form of a spatial matrix.

[0041] Of course, for ease of understanding, a plurality of friction boxes 21 are stacked or stacked in sequence, and the first contact surface 23 of a subsequent friction box 21 abuts against the second contact surface of a previous friction box 21 .

[0042] The intermediate container 20 is formed by stacking a plurality of friction boxes 21, which can ensure the number of unit cavities 22 formed, thereby ensuring that each friction filling particle 30 can work effectively. At the same time, this structure is also easy to disassemble and assemble, and is more convenient for filling the friction filling particles 30.

[0043] As another implementation of this embodiment, the rubbing box 21 can also be set as one. When the rubbing box 21 is set as one, its first contact surface 23 abuts against the inner wall of the accommodating cavity, and each unit cavity 22 formed at this time is in the form of a plane matrix. Of course, when there is one rubbing box 21, a groove 24 can be respectively provided on the first contact surface 23 and the second contact surface, and after the rubbing box 21 is placed in the accommodating cavity, the first contact surface 23 and the second contact surface abut against the two side walls of the accommodating cavity respectively, thereby forming a double row of unit cavities 22, and each unit cavity 22 is in the form of a space matrix.

[0044] In some embodiments, the friction box 21 can be used as follows: Figure 2 See the structure shown. Figure 2 Each friction box 21 has a rectangular shape, which is easy to manufacture and install, and can ensure that the grooves 24 are opened in a matrix.

[0045] Correspondingly, the accommodating cavity is a rectangular parallelepiped cavity adapted to the intermediate container 20 formed by each rubbing box 21 .

[0046] In some embodiments, the friction box 21 can be used as follows: Figure 2 See the structure shown. Figure 2 A partition portion 25 is formed between any two adjacent grooves 24 in each friction box 21 , and an arc-shaped notch 26 is provided at the end of each partition portion 25 located on the first contact surface 23 .

[0047] An arc-shaped notch 26 is provided on the end of each partition portion 25 at the first contact surface 23, so that two adjacent grooves 24 can be connected, and any two adjacent unit cavities 22 can be connected. During use, it is necessary to ensure that the first contact surface 23 of each rubbing box 21 is vertically downwardly arranged, so that the arc-shaped notch 26 is located at the bottom end of each groove 24, that is, the arc-shaped notch 26 is located at the bottom end of each unit cavity 22. This structure can ensure that the rubbing filling particles 30 in each unit cavity 22 can circulate with each other, and then can automatically adjust according to the intensity of vibration. The rubbing filling particles 30 in each unit cavity 22 can adaptively gather in a specific area, automatically optimize the filling rate of each unit cavity 22, and can effectively adapt to vibrations of different frequencies and different intensities.

[0048] It should be noted that, in this embodiment, no matter how the housing 10 is installed, it is necessary to ensure that the first contact surface 23 of each friction box 21 is vertically downward.

[0049] For ease of understanding, when vibration is transmitted to the damper, the friction filling particles 30 in each unit cavity 22 will collide with the inner wall of the unit cavity 22 under the action of vibration, and the friction filling particles 30 will also rub against each other. In low-frequency vibration, the vibration is converted into mechanical energy mainly through the collision absorption between the friction filling particles 30 and the inner wall of the unit cavity 22, or between the friction filling particles 30. In high-frequency vibration, the vibration is converted into mechanical energy and heat energy mainly through the collision between the friction filling particles 30 and the inner wall of the unit cavity 22, or between the friction filling particles 30, or between the friction filling particles 30.

[0050] In some embodiments, the housing 10 may be Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2 The housing 10 includes a box body 11 and a cover plate 12. The box body 11 has an opening. The cover plate 12 is buckled at the opening of the opening and is detachably connected to the box body 11.

[0051] This structure can facilitate the disassembly and assembly of the intermediate container 20, while ensuring the filling of the friction filling particles 30 in the initial stage or subsequent adjustment.

[0052] In this embodiment, the cover plate 12 and the box body 11 can be detachably connected by bolt connection, and the intermediate container 20 can be tightly pressed into the opening cavity after the cover plate 12 is buckled on the opening cavity.

[0053] In some embodiments, the box body 11 may be formed as follows: Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2The box body 11 has two parallel and spaced connection end faces, and each connection end face is provided with two spaced first connection portions 14 and two spaced second connection portions 15.

[0054] The spacing direction of the two first connection parts 14 is perpendicular to the spacing direction of the two connection end faces. The spacing direction of the two second connection parts 15 is perpendicular to the spacing direction of the two first connection parts 14 and the spacing direction of the two connection end faces.

[0055] If the box body 11 is placed in a three-dimensional coordinate system, and the spacing direction of the two connecting end faces is defined as the X-axis, then the spacing direction of the two first connecting parts 14 is the Y-axis, and the spacing direction of the two second connecting parts 15 is the Z-axis. This structure can ensure that the housing 10 is adaptively connected to the housing 10 in other vibration reduction units 100, thereby ensuring the free combination of each vibration reduction unit 100. In addition, this structure can also ensure the connection with other connection carriers 300.

[0056] In some embodiments, the box body 11 may be formed as follows: Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2 The box body 11 is a rectangular parallelepiped structure, and the two connecting end surfaces are located at the two ends of the box body 11 in the length direction.

[0057] The box body 11 is a rectangular parallelepiped structure, which can further ensure the free combination of the vibration reduction units 100, and ensure the neat effect after the combination, while ensuring the connection with other connection carriers 300. In addition, the box body 11 is a rectangular parallelepiped structure, which can also be easy to manufacture and has strong practicality.

[0058] In some embodiments, the box body 11 may be formed as follows: Figure 1 and Figure 2 See the structure shown. Figure 1 and Figure 2 Each connecting end surface is provided with a rectangular open groove 13, and the rectangular open groove 13 forms two parallel first side walls and two parallel second side walls. The rectangular open groove 13 is provided for easy manufacturing, and this structure can ensure that the first connecting portion 14 and the second connecting portion 15 are hidden, avoiding occupying the space outside the box body 11.

[0059] Specifically, the two first connection parts 14 are respectively arranged on the two first side walls, and the two second connection parts 15 are respectively arranged on the two second side walls, so as to ensure that the housing 10 can be fixedly connected with other housings 10 in the horizontal direction and the vertical direction (all around).

[0060] In this embodiment, the first connection portion 14 and the second connection portion 15 may both be connection holes for bolts to pass through.

[0061] In some embodiments, the box body 11 may be formed as follows: Figure 2 See the structure shown. Figure 2 The inner wall of the open cavity is provided with a plurality of chute grooves 16, and each chute groove 16 is arranged along the opening direction of the open cavity. The outer wall of the intermediate container 20 is provided with a plurality of convex ridges 17 which can be matched with each chute groove 16 one by one.

[0062] The sliding groove 16 and the convex ridge 17 are adapted to be slidably connected, which can further ensure the stability of the intermediate container 20 in the accommodating cavity, and can also be conveniently placed therein.

[0063] It should be noted that the intermediate container 20 includes a plurality of friction boxes 21 , so short edges can be provided on the outer wall of each friction box 21 , and after the friction boxes 21 are stacked, the short edges are combined to form a convex edge 17 .

[0064] The self-assembling adaptive friction damper provided by the present invention adopts a self-assembling structure, and a plurality of self-assembling adaptive friction dampers can be flexibly combined into different installation configurations to form a spatial array combination to meet different vibration reduction requirements.

[0065] The self-assembling adaptive friction damper can be installed on an arc-shaped or non-planar vibration platform 200, such as a pipe (see Figure 4 ), or pump (see Figure 5 ); at the same time, the number of each unit cavity 22 in each vibration unit and the friction filling particles 30 can be adaptively adjusted according to different vibration platforms 200.

[0066] In addition, see Figure 6 The self-assembled adaptive friction damper can perform vibration reduction control on the large vibration platform 200 to meet the suppression requirements of different vibration sources.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-assembling adaptive friction damper, characterized in that: It includes a plurality of vibration reduction units which are fixedly installed separately or after being freely combined on a vibration platform; wherein, Each of the vibration reduction units comprises: A housing having a receiving cavity; The intermediate container is fixedly arranged in the accommodating cavity and has a plurality of unit cavities arranged in a matrix, and each of the unit cavities is provided with friction filling particles.

2. The self-assembling adaptive friction damper according to claim 1, characterized in that: Each of the unit cavities is a cubic cavity.

3. The self-assembling adaptive friction damper according to any one of claims 1 to 2, characterized in that: The intermediate container comprises: There are at least two friction boxes, and the friction boxes are stacked in sequence; each of the friction boxes has a first contact surface and a second contact surface arranged in parallel and spaced apart, and a plurality of grooves are arranged in a matrix on the first contact surface; the first contact surface of each friction box abuts against the second contact surface of an adjacent friction box or the inner wall surface of the accommodating cavity, so that the grooves enclose each unit cavity.

4. The self-assembling adaptive friction damper according to claim 3, characterized in that: Each of the friction boxes is a rectangular parallelepiped structure.

5. The self-assembling adaptive friction damper according to claim 3, characterized in that: A partition portion is formed between any two adjacent grooves in each of the friction boxes, and an arc-shaped notch is provided at the end of each of the partition portions located on the first contact surface.

6. The self-assembling adaptive friction damper according to claim 1, characterized in that: The housing comprises: A box body having an open cavity; The cover plate is buckled at the opening of the opening cavity and is detachably connected to the box body.

7. The self-assembling adaptive friction damper according to claim 6, characterized in that: The box body has two parallel and spaced connection end surfaces, and each of the connection end surfaces is provided with two spaced first connection portions and two spaced second connection portions; The spacing direction of the two first connection parts is perpendicular to the spacing direction of the two connection end faces; the spacing direction of the two second connection parts is perpendicular to the spacing direction of the two first connection parts and perpendicular to the spacing direction of the two connection end faces.

8. The self-assembling adaptive friction damper according to claim 7, characterized in that: The box body is a rectangular parallelepiped structure; Wherein, the two connecting end surfaces are located at two ends of the length direction of the box body.

9. The self-assembling adaptive friction damper according to claim 7, characterized in that: Each of the connecting end surfaces is provided with a rectangular open groove, and the rectangular open groove forms two parallel first side walls and two parallel second side walls; The two first connection parts are respectively arranged on the two first side walls, and the two second connection parts are respectively arranged on the two second side walls.

10. The self-assembling adaptive friction damper according to claim 6, characterized in that: A plurality of slide grooves are arranged on the inner wall of the open cavity, and each of the slide grooves is arranged along the opening direction of the open cavity; a plurality of convex edges which can be matched with each of the slide grooves are arranged on the outer wall of the intermediate container.

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