Particle damping collision vibration reduction device
The particle damping collision device addresses the limitations of existing vibration isolation technologies by using a box-based system with damping rods and friction blocks to dissipate energy through particle collisions, achieving broad applicability and enhanced safety and durability.
Patent Information
- Application Number
- CN202420343608.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The existing vibration damping devices have insufficient safety and environmental protection, and are limited in application, so they cannot effectively eliminate vibration energy, affecting passenger comfort and building safety.
The particle damping technology is adopted to set up particle groups and friction blocks in the damping box, and the vibration energy is consumed by the friction and collision between particles, and the combination of balance springs and damping rods to achieve multi-directional vibration damping. The device is made of metal or concrete material and is suitable for different scenarios.
It has achieved widespread application of safety and environmental protection, effectively consumed vibration energy, improved passenger comfort and building safety, reduced vibration transmission, and had a wide range of applications.
Smart Images
Figure CN223105149U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vibration reduction and noise reduction, and particularly relates to a particle damping collision vibration reduction device. Background Art
[0002] People all aspire to a better life, and convenient transportation is the wish of citizens. Nowadays, rail transit such as high-speed railways and subways in China is developed, which greatly facilitates people's travel and is low-carbon and environmentally friendly. However, vibrations will be generated when the train runs, affecting people's sleep and reducing the quality of life. After investigation, at present, the track mainly adopts the floating slab track method to reduce vibration and noise. Its principle is to suspend the track structure through springs, so that the vibration generated during track operation cannot be transmitted to the ground through the springs, thus playing a role in reducing vibration and noise. However, this structure of the track can only prevent vibrations from being transmitted to the ground and cannot eliminate vibrations. Most of the vibrations are transmitted to the carriage, reducing the comfort of passengers.
[0003] In order to reduce the impact of vibrations, when building a building near a vibration source device, generally, vibration isolation pads made of organic materials will be laid on the bottom surface of the building and around the basement. When vibrations or sounds reach the position of the vibration isolation pad, the vibration isolation pad will block the propagation of vibrations and reduce the impact of vibrations, thus achieving the purpose of reducing vibration and noise. The vibration isolation pad has good vibration reduction and noise reduction effects. However, it is made of organic materials. During the service life of the building, especially when it comes into contact with moisture or the alkali of the building, it will degrade, and the vibration reduction and noise reduction effects will show a gradually decreasing trend. This organic material is not easy to recycle after use and is not easy to reuse in the future. Moreover, this organic material is easily introduced by high temperatures such as electric welding during construction, and in severe cases, it may cause a fire. Especially in underground spaces, once a fire occurs, it may lead to casualties, and the consequences are unimaginable.
[0004] In addition, sometimes when primary school students play excitedly at home, the noise upstairs will affect the life of the neighbors downstairs, and the use of equipment such as barbells in the gym will also generate relatively large vibrations downstairs.
[0005] After understanding the existing technologies, the current vibration isolation technologies all have similar defects more or less. For example: 1. Some can only isolate vibrations and have no attenuation effect on vibration energy; 2. Some can play a role in reducing vibration and noise, but their safety and environmental protection need to be improved; 3. Some are only applicable to specific application scenarios, and their application scope is limited. Therefore, it is very necessary to develop a safe and environmentally friendly vibration reduction device to reduce the impact of vibrations on people and the environment. Content of the Utility Model
[0006] The technical problem to be solved by the utility model is to provide a particle damping collision vibration reduction device that is safe and environmentally friendly, has good vibration reduction and noise reduction effects, and has a wide application range.
[0007] To solve the above problems, the technical solution adopted by the present utility model is as follows:
[0008] A particle damping collision vibration reduction device, which includes a square box body and a square damping box arranged inside the box body. A balance spring is connected between the side walls of the box body corresponding to the damping box. A particle group is arranged inside the damping box. It also includes a plurality of damping rods vertically passing through the damping box. Through holes corresponding to the damping rods are opened at the top and bottom of the damping box. Limiting plates adapted to the top and bottom of the box body are horizontally arranged at the upper and lower ends of the damping rods.
[0009] As an implementation manner of the present utility model, a friction block is fixedly arranged on the damping rod inside the particle group.
[0010] As an implementation manner of the present utility model, the upper and lower ends of the friction block are conical.
[0011] As an implementation manner of the present utility model, a compression spring is sleeved between the limiting plate at the lower end of the damping rod and the bottom of the damping box.
[0012] As an implementation manner of the present utility model, the damping box is divided into multiple compartments by vertically arranged partition plates, and one damping rod is arranged in each compartment.
[0013] As an implementation manner of the present utility model, the damping box is made of metal or concrete, and the partition plate is made of metal, wood or concrete.
[0014] As an implementation manner of the present utility model, the particle group is spherical particles of metal or polymer material, and the filling rate of the particle group is 40%-60%.
[0015] As an implementation manner of the present utility model, the particle group adopts lead ball particles, and the filling rate of the particle group is 50%.
[0016] As an implementation manner of the present utility model, a damping layer is arranged at the bottom of the box body, and the damping layer is damping particles or a viscous body.
[0017] As an implementation manner of the present utility model, a box cover is detachably installed on the top of the box body through bolts.
[0018] The beneficial effects produced by adopting the above technical solution are as follows:
[0019] The particle damping collision vibration reduction device provided by the utility model adopts the particle damping technology, which is safe and environment-friendly. By connecting four balance springs that play a buffering and resetting role between the damping box and the inner wall of the box body, a damping rod vertically passing through the damping box and a friction block capable of colliding and rubbing with the particle group are arranged, so that the damping box can move in any direction in the box body, and vibration isolation and noise reduction can be carried out on the vibrations generated in all directions, and the vibration reduction and noise reduction effect is good. It can be set around buildings and railway tracks, on the ground of buildings or trains, under the vibration source equipment or on the facilities or equipment that need vibration reduction, so as to reduce the transmission of vibration and the impact of vibration on people and buildings, etc., and has a wide application range. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is the front view sectional schematic diagram of the utility model.
[0021] Figure 2 is Figure 1 the sectional structure schematic diagram at A-A in
[0022] Figure 3 is another front view sectional schematic diagram of the utility model.
[0023] Figure 4 is Figure 3 the sectional structure schematic diagram at B-B in
[0024] Wherein: 1 box body, 101 threaded hole, 2 box cover, 3 countersunk hole, 4 bolt, 5 damping box, 6 partition board, 7 grid, 8 particle group, 9 balance spring, 10 through hole, 11 damping rod, 12 limiting plate, 13 friction block, 14 compression spring, 15 damping layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following combines specific embodiments to clearly and completely describe the utility model.
[0026] As Figure 1 and Figure 2 shown, a particle damping collision vibration reduction device includes a square box body 1 and a square damping box 5 arranged in the box body 1. Four balance springs 9 are respectively connected between the four side walls of the box body 1 corresponding to the damping box 5. A particle group 8 is arranged in the damping box 5; It also includes a plurality of damping rods 11 vertically passing through the damping box 5. Through holes 10 corresponding to the damping rods 11 are opened at the top and bottom of the damping box 5. Limiting plates 12 adapted to the top and bottom of the box body 1 are horizontally arranged at the upper and lower ends of the damping rods 11, and a gap is left between the limiting plates 12 and the top or bottom of the box body 1.
[0027] In this embodiment, a friction block 13 is fixedly arranged on the damping rod 11 inside the particle group 8, and the upper and lower ends of the friction block 13 are conical. By arranging the friction block 13, the collision probability of spherical particles in the particle group 8 can be increased. When damping the vibration propagating up and down, the friction block 13 can friction and collide with the particle group 8 to enhance the damping and noise reduction effect.
[0028] The particle damping collision damping device adopts particle damping technology, and consumes vibration energy through the friction and collision between the particle group 8 itself and between the particle group 8 and the inner wall of the damping box 5. In order to better damp vibration and reduce noise, the balance spring 9 is a non-linear spring, and its length changes non-linearly when the damper box 5 moves, realizing telescopic deformation energy consumption and tuning, which is safe and environmentally friendly. By connecting four balance springs 9 that play a buffering and resetting role between the damping box 5 and the inner wall of the box body 1, arranging a damping rod 11 vertically passing through the damping box 5 and a friction block 13 that can impact and friction with the particle group 8, the damping box 5 can move in any direction in the box body 1, and can isolate and reduce vibration in all directions, with good damping and noise reduction effects. It can be arranged around buildings and railway tracks, on the ground of buildings or trains, under the vibration source equipment or on the facilities or equipment that need to be damped, reducing the transmission of vibration and the impact of vibration on people and buildings, etc., and has a wide range of applications.
[0029] As a further optimization, a compression spring 14 is sleeved between the limit plate 12 at the lower end of the damping rod 11 and the bottom of the damping box 5. The compression spring 14 is used to offset the weight of the damping box 5 and the particle group 8 inside it, so that the balance spring 9 is in a horizontal state, enabling the damping box 5 to fully move up and down to consume energy when encountering vibration propagating in the up and down direction.
[0030] As Figure 3 and Figure 4 shown, as a further optimization, the damping box 5 is divided into multiple compartments 7 by a vertically arranged partition plate 6, and each compartment 7 is provided with a damping rod 11. By arranging the partition plate 6, the particle group 8 can friction and collide with the partition plate 6 to consume vibration energy, which can well improve the consumption of vibration energy.
[0031] In this embodiment, the damping box 5 is made of metal or concrete, with good load-bearing effect, and the partition plate 6 is made of metal, wood or concrete.
[0032] The particle group 8 is spherical particles of a metal or polymer material, and the filling rate of the particle group 8 is 40%-60%, that is, the volume of the particle group 8 in the damping box 5 and the partition 7 accounts for 40%-60% of the total volume of the damping box 5 and the partition 7. As a further optimization, the particle group 9 uses lead ball particles, and the filling rate of the particle group 8 is 50%.
[0033] As a further optimization, a damping layer 15 is provided at the bottom of the box body 1. The damping layer is a damping particle or viscous body with fluidity. The damping particles can be solid particles such as sand. By providing the damping layer 15, when the damping rod 11 moves along with the damping box 5, a resistance is generated when the lower end of the damping rod 11 moves in the damping layer 15, enhancing the vibration damping and energy dissipation effect.
[0034] The top of the box body 1 is detachably installed with a box cover 2 by bolts 4. A countersunk hole 3 is provided on the box cover 2, and a corresponding threaded hole 101 is provided on the box body 1. The overall structure is convenient for assembly and disassembly.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A particle damping collision vibration reduction device, characterized in that: It includes a square box body and a square damping box arranged inside the box body. A balance spring is connected between the side walls of the box body corresponding to the damping box. A particle group is arranged inside the damping box. It also includes a number of damping rods vertically passing through the damping box. Through holes corresponding to the damping rods are opened at the top and bottom of the damping box. Limiting plates adapted to the top and bottom of the box body are horizontally arranged at the upper and lower ends of the damping rods.
2. The particle damping impinging vibration damping device according to claim 1, wherein: Friction blocks are fixedly arranged inside the particle group on the damping rods.
3. The particle damping collision vibration reduction device according to claim 2, characterized in that: The upper and lower ends of the friction blocks are conical.
4. A particle damping collision vibration damping device according to claim 2, characterized in that: A compression spring is sleeved between the limiting plate at the lower end of the damping rod and the bottom of the damping box on the damping rod.
5. A particle damping collision vibration reduction device according to claim 4, characterized in that: The damping box is divided into multiple compartments by vertically arranged partition plates, and one of the damping rods is arranged in each compartment.
6. The particle damping impact vibration reduction device according to claim 5, wherein: The damping box is made of metal or concrete, and the partition plates are made of metal, wood or concrete.
7. A particle damping collision vibration damping device according to any one of claims 1-6, characterized in that: The particle group is spherical particles of metal or polymer material, and the filling rate of the particle group is 40%-60%.
8. A particle damping collision vibration reduction device according to claim 7, characterized in that: The particle group uses lead ball particles, and the filling rate of the particle group is 50%.
9. A particle damping collision vibration reduction device according to claim 1, characterized in that: A damping layer is arranged at the bottom of the box body, and the damping layer is damping particles or a viscous body.
10. A particle damping collision vibration reduction device according to claim 1, characterized in that: The box cover is detachably installed at the top of the box body through bolts.