A composite damping vibration damper

Abstract

This invention discloses a composite damping vibration damper, comprising a first damping mechanism that works in multiple directions to mitigate vertical impact forces, and a second damping mechanism connected to the first damping mechanism to mitigate multi-directional impact forces. The first damping mechanism includes a base, two symmetrically arranged sleeves fixedly connected to the base, an electromagnetic damping component mounted on the sleeves, and a damping component slidably connected to the sleeves and cooperating with the electromagnetic damping component to achieve electromagnetic damping. The second damping mechanism includes a crossbeam assembly connected to the base, U-shaped reinforcing components symmetrically mounted on both sides of the crossbeam assembly, and a limiting component disposed inside the reinforcing component and supporting it. This invention, through the synergistic work of mechanical buffering and electromagnetic damping, not only achieves multiple buffering and vibration reduction and real-time adjustment of the buffering force, but also enables multi-directional buffering and vibration reduction, making it suitable for various complex working conditions without the problem of media leakage, thus facilitating subsequent maintenance.

Description

Technical Field

[0001] This invention belongs to the field of vibration reduction technology, and in particular relates to a composite damping vibration damper. Background Technology

[0002] Damping shock absorbers are widely used in various fields such as engineering machinery, rail transportation, building structures, and heavy equipment. They are mainly used to mitigate mechanical damage and noise pollution caused by vibration and impact during equipment operation, achieving vibration reduction and noise reduction. In these fields, equipment typically needs to operate continuously in high-frequency or high-amplitude vibration environments, thus placing high demands on the damper's buffering performance, reliability, and durability.

[0003] Traditional dampers typically use gas or damping fluid as the damping medium, achieving a buffering effect through the flow and compression of the medium. However, this type of damper has the following limitations in practical applications: when subjected to impact forces exceeding the design limits of the damper, the pressure of the gas or liquid medium increases sharply, easily leading to internal leakage, and in severe cases, potentially causing the pipe wall or sealing structure to burst; due to the high fluidity of gases and liquids, the requirements for the sealing structure are extremely high, and the seals are prone to aging or damage during long-term use, resulting in a decrease in damping performance; after a medium leak, the damper requires complex repair and replenishment operations, which not only increases maintenance costs but may also cause prolonged equipment downtime, affecting production efficiency; traditional dampers usually cannot adjust the damping effect in real time according to actual load changes, making it difficult to maintain stable buffering performance under various operating conditions. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a composite damping vibration damper that is applicable to different working conditions, has low maintenance costs, and does not cause media leakage.

[0005] Technical Solution: This invention discloses a composite damping vibration damper, comprising a first damping mechanism that works in multiple directions to mitigate vertical impact forces and a second damping mechanism connected to the first damping mechanism to mitigate multi-directional impact forces. The first damping mechanism includes a base, two symmetrically arranged sleeves fixedly connected to the base, an electromagnetic damping component disposed on the sleeves, and a damping component that is slidably connected to the sleeves and works in conjunction with the electromagnetic damping component to achieve electromagnetic damping. The second damping mechanism includes a crossbeam assembly connected to the base, U-shaped reinforcing components symmetrically installed on both sides of the crossbeam assembly, and a limiting component disposed inside the reinforcing component and supporting it.

[0006] Furthermore, the electromagnetic vibration damping assembly includes a first coil wound around the outer periphery of the sleeve, a second coil wound around the outer periphery of the first coil, a current regulator installed inside the sleeve and electrically connected to the first and second coils, a strong magnet slidably disposed inside the sleeve to cut magnetic field lines, and a switch for controlling the on / off state of the first and second coils.

[0007] Furthermore, the switch is mounted on the base, and the terminals of the switch are connected to the first coil and the second coil.

[0008] Furthermore, the damping and vibration reduction assembly includes a connecting rod fixedly connected to a strong magnet and capable of extending into the sleeve, a plug rod fixedly connected to the connecting rod and slidably connected to the sleeve, a retaining ring fixedly connected to the end of the plug rod away from the connecting rod, and a first spring surrounding the plug rod and located between the sleeve and the retaining ring.

[0009] Furthermore, the first vibration damping mechanism also includes a damping alloy stop fixedly installed on one side of the damping vibration damping component.

[0010] Furthermore, a pressure sensor is installed on one side of the damping alloy stop.

[0011] Furthermore, the pressure sensor monitors the external pressure signal in real time and transmits the external pressure signal to the current regulator. The current regulator adjusts the current magnitude of the first coil and the second coil based on the external pressure signal, thereby controlling the damping force of the electromagnetic vibration damping component.

[0012] Furthermore, the crossbeam assembly includes two symmetrically arranged anti-collision crossbeams with deformation openings, and the two ends of the reinforcing component extend to the inner sides of the two anti-collision crossbeams and are fixedly connected thereto; the anti-collision crossbeams are fixedly connected to the base.

[0013] Furthermore, the reinforcing component includes a U-shaped reinforcing plate with a cavity interlayer, a buffer layer disposed within the cavity interlayer, a fixing block perpendicularly connected to the inner wall of the cavity interlayer, and a support piece disposed on the outer periphery of the fixing block.

[0014] Furthermore, the limiting component includes two symmetrically arranged connecting blocks that are fixedly connected to the U-shaped inner side of the reinforcing component, a connecting head that is slidably connected to the connecting blocks, a limiting block that is fixedly connected to the connecting head, and a second spring that is fixedly connected between the two limiting blocks.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention, through the synergistic work of mechanical buffering and electromagnetic damping, not only achieves multiple buffering and vibration reduction and real-time adjustment of the buffering force, but also achieves multi-directional buffering and vibration reduction, which can be applied to different complex working conditions, and has a fast overall response and stable structure; The present invention, through the synergistic work of mechanical buffering and electromagnetic damping, does not contain gas or liquid media inside, so there will be no media leakage problem in actual use, which facilitates subsequent maintenance. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the first vibration damping mechanism of the present invention;

[0018] Figure 3 This is a top view of the first vibration damping mechanism of the present invention;

[0019] Figure 4 This is a cross-sectional view of the first vibration damping mechanism of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the second vibration damping mechanism of the present invention;

[0021] Figure 6 This is a cross-sectional view of the reinforcing component of the present invention;

[0022] Figure 7 This is a cross-sectional view of the limiting component of the present invention. Detailed Implementation

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0024] This invention discloses a composite damping vibration damper, such as... Figure 1 As shown, it includes a first vibration damping mechanism 1 and a second vibration damping mechanism 2 connected to the first vibration damping mechanism 1. The first vibration damping mechanism 1 can perform multiple buffering and vibration damping against external impact forces in its vertical direction, while the second vibration damping mechanism 2 can alleviate external impact forces in multiple directions. Through the cooperation of the first vibration damping mechanism 1 and the second vibration damping mechanism 2, efficient buffering and vibration damping in multiple directions can be achieved, which is applicable to various working conditions. Moreover, neither the first vibration damping mechanism 1 nor the second vibration damping mechanism 2 contains gas or liquid media, so there will be no media leakage problem during actual use, which facilitates subsequent maintenance.

[0025] like Figures 2-4As shown, the first vibration damping mechanism 1 includes a base 3, a sleeve 4, an electromagnetic vibration damping component 5, a damping vibration damping component 6, and a damping alloy stop 29. A mounting base 31 is fixedly connected to the base 3. A connector 32 is fixedly connected to the side of the sleeve 4 near the mounting base 31, and the connector 32 is fixedly connected to the mounting base 31, that is, the sleeve 4 is fixedly connected to the base 3. The electromagnetic vibration damping component 5 is disposed on the sleeve 4, and the damping vibration damping component 6 is disposed on one side of the electromagnetic vibration damping component 5. The damping vibration damping component 6 is slidably connected to the sleeve 4. When the damping vibration damping component 6 relieves external impact force, it slides relative to the sleeve 4, which can cut the magnetic field lines of the electromagnetic vibration damping component 5 to generate a reverse damping force, further relieving external impact force. The damping alloy stop 29 is fixedly connected to the end of the damping vibration damping component 6 away from the electromagnetic vibration damping component 5. When subjected to external impact force, the damping alloy stop 29 first offsets part of the impact force, and the remaining impact force is then transmitted sequentially to the damping vibration damping component 6 and the electromagnetic vibration damping component 5. That is, the damping alloy stop 29, the damping vibration damping component 6, and the electromagnetic vibration damping component 5 work together to achieve multiple buffering and vibration reduction. Preferably, the damping alloy stop 29 is configured with a cross-shaped structure.

[0026] The electromagnetic vibration damping assembly 5 includes a first coil 10, a second coil 11, a current regulator 12, a strong magnet 13, and a switch 14. The first coil 10 is wound around the outer periphery of the sleeve 4, and the second coil 11 is wound around the outer periphery of the first coil 10. The current regulator 12 is installed inside the sleeve 4 and is electrically connected to the first coil 10 and the second coil 11 respectively. The strong magnet 13 is slidably installed inside the sleeve 4 and is connected to the damping vibration damping assembly 6. The damping vibration damping assembly 6 drives the strong magnet 13 to move relative to the sleeve 4 to cut magnetic field lines. The switch 14 is installed on the base 3 and its terminals are connected to the first coil 10 and the second coil 11. The switch 14 is used to control the on / off state of the first coil 10 and the second coil 11. The movement of the strong magnet 13 causes the magnetic field to cut the magnetic field lines of the first coil 11 and the second coil 12, generating an induced current in the coil and producing a resistance to counteract the external impact force, thus avoiding the possibility of leakage of the medium (damping liquid or gas) and the bursting of the bushing when the traditional damper is subjected to strong external force.

[0027] Preferably, a pressure sensor 30 is installed on one side of the damping alloy stop 29, and the pressure sensor 30 is electrically connected to the current regulator 12. The pressure sensor 30 monitors the external pressure signal in real time and transmits the external pressure signal to the current regulator 12. The current regulator 12 adjusts the current magnitude of the first coil 10 and the second coil 11 based on the external pressure signal, thereby controlling the damping force of the electromagnetic vibration damping component 5. The switch 14 controls the range of adjustable current by controlling the on / off state of the first coil 10 and the second coil 11. When the required current adjustment range is small, only the first coil 10 or the second coil 11 can be turned on. When the required current adjustment range is large, the first coil 10 and the second coil 11 can be turned on at the same time. That is, when the first coil 10 is turned on, the range of adjustable current is [0, I1], when the second coil 11 is turned on, the range of adjustable current is [0, I2], and when the first coil 10 and the second coil 11 are turned on at the same time, the range of adjustable current is [0, I1+I2]. The current regulator 12 uses the external force measured by the pressure sensor 30 to adaptively adjust the current magnitude of the first coil 10 and the second coil 11, precisely controlling the damping force. This can significantly improve the vibration reduction effect, reduce the impact of vibration on the overall performance, and adapt to more complex working environments. Furthermore, the overall system can automatically reduce the current output under non-high load conditions, thereby reducing energy consumption, extending the overall service life, and lowering operating costs.

[0028] The damping and vibration reduction assembly 6 includes a connecting rod 15, a stopper rod 16, a retaining ring 17, and a first spring 18. One end of the connecting rod 15 extends into the sleeve 4 and is fixedly connected to the strong magnet 13. The other end of the connecting rod 15 is fixedly connected to the stopper rod 16, and the stopper rod 16 is slidably connected to the sleeve 4. The retaining ring 17 is fixedly connected to the end of the stopper rod 16 away from the connecting rod 15. The first spring 18 is arranged around the outer periphery of the stopper rod 16 and is located between the sleeve 4 and the retaining ring 17. When subjected to external impact, the first spring 18 contracts to relieve the impact, while the stopper rod 16 drives the connecting rod 15 and the strong magnet 13 to slide relative to the sleeve 4.

[0029] like Figure 5 As shown, the second vibration damping mechanism 2 includes a crossbeam assembly 7, a reinforcing assembly 8, and a limiting assembly 9. The crossbeam assembly 7 is connected to the base 3. Two sets of reinforcing assemblies 8 are symmetrically installed on both sides of the crossbeam assembly 7, and the reinforcing assemblies 8 are U-shaped. The limiting assembly 9 is located inside the reinforcing assemblies 8 and supports them. Under impact, the crossbeam assembly 7 deforms to dissipate part of the impact force, reducing the vibration force of the internal components; the reinforcing assembly 8 absorbs the impact force from different directions and recovers its deformation; the limiting assembly 9 is used to control the range of motion of the second vibration damping mechanism 2 to prevent displacement failure.

[0030] The crossbeam assembly 7 includes two symmetrically arranged anti-collision crossbeams 20 with deformation openings 19. Multiple deformation openings 19 are evenly distributed on the anti-collision crossbeams 20. Under impact, the deformation openings 19 deform to dissipate part of the impact force, reducing vibration of the internal components. The anti-collision crossbeams 20 are made of HSLA steel or Q235 steel, and the deformation openings 19 can automatically recover their deformation during the elastic deformation phase. The reinforcing assembly 8 extends to the inner sides of the two anti-collision crossbeams 20 at both ends and is fixedly connected to them. The anti-collision crossbeams 20 are fixedly connected to the base 3.

[0031] like Figure 6 As shown, the reinforcing component 8 includes a reinforcing plate 21, a buffer layer 22, a fixing block 23, and a support plate 24. The reinforcing plate 21 is U-shaped and has a hollow interlayer. Both ends of the reinforcing plate 21 extend to the inner sides of the two anti-collision beams 20 and are fixedly connected to the anti-collision beams 20 with screws. The buffer layer 22 fills the hollow interlayer of the reinforcing plate 21 and is bonded to the inner wall of the hollow interlayer. The buffer layer 22 is made of a porous elastic material. The buffer layer 22 has a notch for accommodating the fixing block 23, and the fixing block 23 is perpendicularly connected to the inner wall of the hollow interlayer. The buffer layer 22 also has a notch for accommodating the support plate 24, and the support plate 24 is fixedly connected to the outer periphery of the fixing block 23. The support plate 24 and the fixing block 23 are made of rigid material and are used to improve the structural stability of the reinforcing component 8. The reinforcing component 8 absorbs impact force from different directions and recovers its deformation. The U-shaped reinforcing plate 21 can distribute the impact force more evenly, preventing the sharp corners of the rectangular structure of the anti-collision beam 20 from becoming stress concentration points, thereby reducing the risk of local failure and improving overall stability.

[0032] like Figure 7 As shown, the limiting component 9 includes a connecting block 25, a connecting head 26, a limiting block 27, and a second spring 28. The connecting block 25 is fixedly connected to the U-shaped inner side of the reinforcing component 8, and the two connecting blocks 25 are symmetrically arranged. The connecting block 25 has a groove that matches the connecting head 26, and the connecting head 26 extends into the groove and slides with the connecting block 25. The limiting block 27 is fixedly connected to the side of the connecting head 26 away from the connecting block 25. The two ends of the second spring 28 are fixedly connected to the two limiting blocks 27 respectively, and the connecting head 26 slides relative to the connecting block 25 under the action of the second spring 28.

[0033] The first vibration damping mechanism 1 and the second vibration damping mechanism 2 of this invention cooperate to not only achieve multiple buffering and vibration reduction of external impact forces, but also to buffer external impact forces from multiple directions, which is beneficial to improving the overall practicality and can be applied to different usage scenarios. For example, in the process of transporting heavy machinery, in addition to the vertical impact force, the machinery will also be subjected to impact forces from other directions due to collisions, obstacles encountered during transport, etc. When using this invention to protect it, the direction of the first vibration damping mechanism 1 is parallel to the direction that may be subjected to the greatest impact force, so as to achieve multiple buffering of impact forces in that direction, and the second vibration damping mechanism 2 can achieve buffering protection against impact forces from other directions. At the connection points of adjacent carriages, car panels, etc., during vehicle travel, in addition to the impact force in the direction of vehicle travel, the connection points will also be subjected to impact forces from other directions due to road bumps, possible collisions during travel, etc. Items and passengers located on the carriages and car panels can also cause impact forces from other directions during travel.

[0034] When the anti-collision beam 20 in the crossbeam assembly 7 is subjected to external impact, the deformation port 19 first dissipates part of the impact force, and the remaining impact force is transmitted to the reinforcing assembly 8, where it is absorbed by the reinforcing plate 21 and the buffer layer 22. The second spring 28 of the limiting assembly 9 provides secondary buffer support to prevent the second damping mechanism 2 from deforming beyond its range. At the same time, in the vertical direction of the first damping mechanism 1, the damping alloy stop 29 first offsets part of the impact force, and the remaining impact force is then transmitted to the damping damping assembly 6 in sequence. The first spring 18 contracts to relieve the impact force, while the stop rod 16 drives the connecting rod 15 and the strong magnet 13 to slide relative to the sleeve 4. The strong magnet 13 cuts the magnetic field lines of the first coil 10 and the second coil 11, generating an induced current in the coil. The current regulator 12 adjusts the current output of the first coil 10 and the second coil 11 in real time according to the signal transmitted by the pressure sensor 30, generating a reverse damping force, which effectively offsets the vibration through Lenz's law. After the impact force disappears, the first damping mechanism 1 returns to its initial state under the action of the first spring 18, and the second damping mechanism 2 recovers its deformation under the action of the second spring 28, the reinforcing plate 21, and the buffer layer 22. This invention, through the synergistic work of mechanical buffering and electromagnetic damping, achieves multi-level vibration suppression and real-time adjustment, possessing advantages such as fast response, structural stability, and precise vibration control. It is suitable for heavy machinery, high-frequency vibration equipment, and rail transportation, significantly improving the stability and service life of the equipment.

Claims

1. A composite damping vibration damper, characterized in that: The system includes a first damping mechanism (1) that works in multiple directions to mitigate vertical impact forces and a second damping mechanism (2) connected to the first damping mechanism (1) to mitigate impact forces in multiple directions. The first damping mechanism (1) includes a base (3), two symmetrically arranged sleeves (4) fixedly connected to the base (3), an electromagnetic damping component (5) mounted on the sleeves (4), and a damping component (6) that is slidably connected to the sleeves (4) and works in conjunction with the electromagnetic damping component (5) to achieve electromagnetic damping. The second damping mechanism (2) includes a beam assembly (7) connected to the base (3), U-shaped reinforcing components (8) symmetrically mounted on both sides of the beam assembly (7), and a limiting component (8) located inside the reinforcing component (8) and supporting it. Position component (9); the electromagnetic vibration damping component (5) includes a first coil (10) wound around the outer periphery of the sleeve (4), a second coil (11) wound around the outer periphery of the first coil (10), a current regulator (12) installed inside the sleeve (4) and electrically connected to the first coil (10) and the second coil (11), a strong magnet (13) slidably installed inside the sleeve (4) to cut magnetic field lines, and an opening and closing switch (14) for controlling the on and off of the first coil (10) and the second coil (11); the first vibration damping mechanism (1) also includes a damping alloy stop (29) fixedly installed on one side of the damping vibration damping component (6); a pressure sensor (30) is installed on one side of the damping alloy stop (29).

2. The composite damping vibration damper according to claim 1, characterized in that: The opening and closing gate (14) is installed on the base (3), and the terminals of the opening and closing gate (14) are connected to the first coil (10) and the second coil (11).

3. The composite damping vibration damper according to claim 1, characterized in that: The damping and vibration reduction assembly (6) includes a connecting rod (15) fixedly connected to a strong magnet (13) and capable of extending into the sleeve (4), a plug rod (16) fixedly connected to the connecting rod (15) and slidably connected to the sleeve (4), a retaining ring (17) fixedly connected to one end of the plug rod (16) away from the connecting rod (15), and a first spring (18) surrounding the plug rod (16) and located between the sleeve (4) and the retaining ring (17).

4. The composite damping vibration damper according to claim 1, characterized in that: The pressure sensor (30) monitors the external pressure signal in real time and transmits the external pressure signal to the current regulator (12). The current regulator (12) adjusts the current magnitude of the first coil (10) and the second coil (11) based on the external pressure signal, thereby controlling the damping force of the electromagnetic vibration damping component (5).

5. The composite damping vibration damper according to claim 1, characterized in that: The beam assembly (7) includes two symmetrically arranged anti-collision beams (20) with deformation openings (19), and the two ends of the reinforcing assembly (8) extend to the inner side of the two anti-collision beams (20) and are fixedly connected thereto; the anti-collision beams (20) are fixedly connected to the base (3).

6. The composite damping vibration damper according to claim 1, characterized in that: The reinforcing component (8) includes a U-shaped reinforcing plate (21) with a cavity interlayer, a buffer layer (22) disposed in the cavity interlayer, a fixing block (23) perpendicularly connected to the inner wall of the cavity interlayer, and a support piece (24) disposed on the outer periphery of the fixing block (23).

7. The composite damping vibration damper according to claim 1, characterized in that: The limiting component (9) includes two symmetrically arranged connecting blocks (25) fixedly connected to the U-shaped inner side of the reinforcing component (8), a connecting head (26) slidably connected to the connecting blocks (25), a limiting block (27) fixedly connected to the connecting head (26), and a second spring (28) fixedly connected between the two limiting blocks (27).

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