Small-hole low-frequency high-damping vibration isolation optical platform

Abstract

The utility model discloses a small hole low frequency high damping vibration isolation optical platform, including platform body, the platform body includes panel, honeycomb core layer and bottom plate panel fixed mounting is in the top of honeycomb core layer, the honeycomb core layer sets up in the top of bottom plate, the inside of panel is provided with through -hole, and through -hole is provided with a plurality, fixed mounting has the damping pad between honeycomb core layer and bottom plate, the damping pad adopts viscoelastic polymer to make, the inside of bottom plate is provided with inner chamber, the inner chamber of bottom plate fills with damping particle, and damping particle is provided with a plurality, the damping particle sets up as steel ball, and the rubber layer is covered to steel ball surface. Its realized the ability of stable vibration reduction, increased practicality, thereby solved in the optical platform use process, lack effective damping processing, lead to the isolation ability of high frequency vibration and low frequency microvibration is insufficient, and the problem of not ideal vibration reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of optical platform technology, specifically a small-aperture low-frequency high-damping vibration isolation optical platform. Background Technology

[0002] Optical platforms are essential basic equipment in the fields of optical experiments and precision measurement. They are usually made of high-quality steel or granite and other highly stable materials. The surface is covered with a precision-machined honeycomb or spiral structure to enhance structural strength and reduce weight. They are widely used in laser processing, spectral analysis, quantum optics, biological microscopy imaging, semiconductor detection and other fields.

[0003] For example, the authorized patent CN203414664U (An Optical Platform) includes a top plate, a bottom plate, a core layer, side plates, and a support device. The top and bottom of the core layer are respectively provided with the top plate and the bottom plate, and the side plates are arranged around the core layer. The top plate, bottom plate, core layer, and side plates are bonded together with adhesive. The bottom plate is directly placed on the support device. The support device includes leg supports, height adjustment studs, height adjustment nuts, and foot supports. The height adjustment studs, which cooperate with the height adjustment nuts, connect the foot supports and the leg supports. By adjusting the height adjustment studs and the height adjustment nuts, the height of the optical platform and the levelness of the top plate can be adjusted. The core layer is a cross structure welded from cast iron with good vibration absorption performance, and the top plate has an array of screw holes.

[0004] While the aforementioned existing technologies simplify the manufacturing process and reduce production costs, vibration reduction relies solely on the core layer within the platform. In complex vibration environments, these technologies cannot effectively disperse and attenuate vibration energy. Consequently, the lack of effective damping during the use of the optical platform results in insufficient isolation capabilities against high-frequency and low-frequency micro-vibrations, leading to unsatisfactory vibration reduction effects. Therefore, there is an urgent market need to develop a small-aperture, low-frequency, high-damping vibration isolation optical platform to help solve these existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a small-aperture, low-frequency, high-damping vibration isolation optical platform to solve the problem mentioned in the background art that the lack of effective damping treatment during the use of the optical platform results in insufficient isolation capability for high-frequency vibrations and low-frequency micro-vibrations, and unsatisfactory vibration reduction effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a small-aperture low-frequency high-damping vibration isolation optical platform, comprising a platform body, the platform body comprising a panel, a honeycomb core layer, and a base plate. The panel is fixedly installed above the honeycomb core layer, the honeycomb core layer is disposed above the base plate, the panel has through holes inside, and multiple through holes are provided. A damping pad is fixedly installed between the honeycomb core layer and the base plate, the damping pad being made of a viscoelastic polymer. The base plate has an inner cavity inside, the inner cavity of the base plate being filled with damping particles, and multiple damping particles are provided. The damping particles are steel balls, and the surface of the steel balls is covered with a rubber layer.

[0007] Preferably, air springs are provided at the four corners below the platform body. The air springs are fixedly connected to the base plate. A mounting plate is fixedly installed below the air springs, and a supporting steel pipe is fixedly installed below the mounting plate.

[0008] Preferably, each of the four corners of the honeycomb core layer is provided with a groove, and each of the four grooves of the honeycomb core layer is provided with a fixing block, and the panel and the bottom plate are fixedly connected to the fixing blocks.

[0009] Preferably, constraint plates are symmetrically arranged on the lower sides of both sides of the platform body, and fixing plates are symmetrically fixedly installed at the front and rear ends below the constraint plates, and the fixing plates are fixedly connected to the supporting steel pipes.

[0010] Preferably, baffles are provided on both sides and the front end of the platform body, and the baffles are located between two supporting steel pipes and are fixedly connected to the supporting steel pipes.

[0011] Preferably, an installation strip is fixedly installed on the lower inner side of the baffle between the two supporting steel pipes. The installation strip is fixedly connected to the supporting steel pipes. Installation blocks are symmetrically fixedly installed at the front and rear ends below the installation strip, and casters are fixedly installed below the installation blocks.

[0012] Preferably, a pad is provided below the supporting steel pipe, a threaded rod is threadedly installed above the pad, the upper end of the threaded rod extends into the interior of the supporting steel pipe and is fixedly installed with a top plate, the top plate is fixedly connected to the supporting steel pipe, and a rubber pad is fixedly installed below the pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model constructs a multi-level vibration reduction system through the synergistic effect of the panel through holes, honeycomb core layer, viscoelastic damping pad and damping particles of the platform body. The panel through holes effectively disperse vibration, the honeycomb core layer provides basic vibration isolation support, the viscoelastic damping pad absorbs energy for medium and high frequency vibration, and the rubber-wrapped steel balls filled in the inner cavity of the bottom plate dissipate low frequency vibration energy through collision and friction between particles. In this way, it not only enhances the isolation capability of multi-frequency vibration, but also adapts to the changes of complex vibration environment, significantly improves the overall performance of the platform and increases its practicality.

[0015] (2) The utility model has air springs installed at the four corners under the platform body, which can provide active vibration isolation, effectively isolate low-frequency vibrations transmitted from the ground, and adapt to different load requirements by adjusting the air pressure, thereby enhancing the adaptability of the platform.

[0016] (3) By symmetrically setting constraint plates on the lower sides of the platform body, the utility model can effectively limit the lateral displacement of the platform, increase the stability of the optical platform vibration reduction, and improve its practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a small-aperture low-frequency high-damping vibration isolation optical platform according to the present invention;

[0018] Figure 2 This is a bottom view structural schematic diagram of a small-aperture low-frequency high-damping vibration isolation optical platform according to the present invention;

[0019] Figure 3 This is a cross-sectional view of the platform body of this utility model;

[0020] Figure 4 This is an enlarged schematic diagram of part A of this utility model.

[0021] In the diagram: 1. Platform body; 101. Panel; 102. Honeycomb core layer; 103. Base plate; 2. Supporting steel pipe; 3. Fixing block; 4. Constraint plate; 5. Fixing plate; 6. Baffle; 7. Mounting block; 8. Casters; 9. Pad; 10. Mounting strip; 11. Threaded rod; 12. Rubber pad; 13. Damping pad; 14. Damping particles; 15. Air spring; 16. Mounting plate base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a small-aperture low-frequency high-damping vibration isolation optical platform, comprising a platform body 1, the platform body 1 comprising a panel 101, a honeycomb core layer 102, and a base plate 103. The panel 101 is fixedly installed above the honeycomb core layer 102, the honeycomb core layer 102 is disposed above the base plate 103, the panel 101 has through holes inside, and multiple through holes are provided. A damping pad 13 is fixedly installed between the honeycomb core layer 102 and the base plate 103. The damping pad 13 is made of a viscoelastic polymer, and the viscoelastic polymer is polyurethane material. The base plate 103 has an inner cavity inside, and the inner cavity of the base plate 103 is filled with damping particles 14, and multiple damping particles 14 are provided. The damping particles 14 are steel balls, and the surface of the steel balls is covered with a rubber layer.

[0024] When the optical platform is in use, the through holes inside the panel 101 can effectively disperse vibrations, and the honeycomb core layer 102 provides basic vibration isolation support. The damping pad 13 made of viscoelastic polymer can absorb the energy of mid-to-high frequency vibrations, while the rubber-wrapped steel balls filled in the inner cavity of the base plate 103 dissipate the energy of low-frequency vibrations through the collision and friction between particles. This enhances the isolation capability of multi-frequency vibrations, realizes the low-frequency high-damping vibration isolation capability of small holes, and increases practicality.

[0025] Please see Figure 2 Air springs 15 are installed at the four corners below the platform body 1. The air springs 15 are fixedly connected to the base plate 103. A mounting plate base 16 is fixedly installed below the air springs 15. A support steel pipe 2 is fixedly installed below the mounting plate base 16.

[0026] The air spring 15 provides active vibration isolation, effectively isolating low-frequency vibrations transmitted from the ground. It can also adapt to different load requirements by adjusting the air pressure, enhancing the platform's adaptability. The mounting plate 16 and the supporting steel pipe 2 form a stable support frame, improving the overall structure's anti-overturning ability and ensuring that the platform remains horizontally stable under dynamic loads.

[0027] Please see Figure 1 The honeycomb core layer 102 has grooves at all four corners, and each of the four grooves of the honeycomb core layer 102 has a fixing block 3 inside. The panel 101 and the base plate 103 are fixedly connected to the fixing block 3.

[0028] The installation of fixing block 3 enhances the connection strength between panel 101, honeycomb core layer 102 and base plate 103, preventing structural loosening due to long-term vibration and increasing practicality.

[0029] Please see Figure 1The platform body 1 has symmetrically arranged constraint plates 4 on both sides below. The bottom plate 103 has side grooves on both sides that match the size of the two constraint plates 4. The constraint plates 4 are placed inside the side grooves and are in contact with the bottom plate 103. Fixing plates 5 are symmetrically fixedly installed at the front and rear ends below the constraint plates 4. The fixing plates 5 are fixedly connected to the supporting steel pipe 2.

[0030] The symmetrically arranged constraint plates 4 can effectively limit the lateral displacement of the platform and prevent lateral swaying caused by vibration or load changes, thus increasing its practicality.

[0031] Please see Figure 2 and Figure 4 Baffles 6 are provided on both sides and front end of the platform body 1. The baffles 6 are located between two supporting steel pipes 2 and are fixedly connected to the supporting steel pipes 2. An installation strip 10 is fixedly installed on the lower inner side of the baffles 6 along the space between the two supporting steel pipes 2. The installation strip 10 is fixedly connected to the supporting steel pipes 2. Installation blocks 7 are symmetrically fixedly installed at the front and rear ends of the installation strip 10. A caster wheel 8 is fixedly installed below the installation block 7. A pad 9 is provided below the supporting steel pipes 2. A threaded rod 11 is threadedly installed on the upper part of the pad 9. The upper end of the threaded rod 11 extends into the interior of the supporting steel pipe 2 and is fixedly installed with a top plate. The top plate is fixedly connected to the supporting steel pipe 2. A rubber pad 12 is fixedly installed below the pad 9.

[0032] The baffle 6 and mounting strip 10 enhance the structural stability under the platform and prevent relative displacement between the supporting steel pipes 2. The casters 8 facilitate the movement and positioning of the platform, improving ease of use. The rubber pads 12 further isolate ground vibration, reduce low-frequency interference, and increase practicality.

[0033] Working principle: When vibration occurs, the multiple through holes inside the panel 101 can effectively disperse the vibration energy and avoid energy concentration. The honeycomb core layer 102 provides basic vibration isolation support and initially isolates some vibration. At the same time, the damping pad 13 between the honeycomb core layer 102 and the base plate 103 can absorb medium and high frequency vibration energy. The steel balls with rubber-coated surfaces filling the inner cavity of the base plate 103 act as damping particles 14, which dissipate low frequency vibration energy through collision and friction between particles. The multi-structure synergy enhances the isolation capability for multi-frequency vibration. In addition, the air springs 15 at the four corners below the platform body 1 can actively isolate vibration, effectively isolating low frequency vibrations transmitted from the ground. They can also adjust the air pressure to adapt to different load requirements. Furthermore, the universal wheels 8 facilitate platform movement and increase practicality.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pinhole low-frequency high-damping vibration isolation optical platform, comprising a platform body (1), characterized in that: The platform body (1) includes a panel (101), a honeycomb core layer (102), and a base plate (103). The panel (101) is fixedly installed above the honeycomb core layer (102), and the honeycomb core layer (102) is located above the base plate (103). The panel (101) has through holes inside, and there are multiple through holes. A damping pad (13) is fixedly installed between the honeycomb core layer (102) and the base plate (103). The damping pad (13) is made of viscoelastic polymer. The base plate (103) has an inner cavity inside, and the inner cavity of the base plate (103) is filled with damping particles (14), and there are multiple damping particles (14). The damping particles (14) are steel balls, and the surface of the steel balls is covered with a rubber layer.

2. The pinhole low-frequency high-damping vibration isolation optical platform according to claim 1, characterized in that: Air springs (15) are provided at the four corners below the platform body (1). The air springs (15) are fixedly connected to the base plate (103). A mounting plate base (16) is fixedly installed below the air springs (15). A supporting steel pipe (2) is fixedly installed below the mounting plate base (16).

3. The pinhole low-frequency high-damping vibration isolation optical platform according to claim 1, characterized in that: The honeycomb core layer (102) has grooves at its four corners, and each of the four grooves of the honeycomb core layer (102) has a fixing block (3) inside it. The panel (101) and the bottom plate (103) are fixedly connected to the fixing block (3).

4. The pinhole low-frequency high-damping vibration isolation optical platform according to claim 2, characterized in that: The platform body (1) is symmetrically provided with constraint plates (4) on both sides below. The front and rear ends of the constraint plates (4) are symmetrically fixedly installed with fixing plates (5). The fixing plates (5) are fixedly connected to the supporting steel pipe (2).

5. The pinhole low-frequency high-damping vibration isolation optical platform according to claim 4, characterized in that: Baffles (6) are provided on both sides and front end of the platform body (1). The baffles (6) are located between two supporting steel pipes (2) and are fixedly connected to the supporting steel pipes (2).

6. The pinhole low-frequency high-damping vibration isolation optical platform according to claim 5, characterized in that: An installation strip (10) is fixedly installed on the lower inner side of the baffle (6) between the two supporting steel pipes (2). The installation strip (10) is fixedly connected to the supporting steel pipe (2). Installation blocks (7) are symmetrically fixedly installed at the front and rear ends of the installation strip (10). A caster wheel (8) is fixedly installed below the installation block (7).

7. The pinhole low-frequency high-damping vibration isolation optical platform according to claim 6, characterized in that: A pad (9) is provided below the supporting steel pipe (2). A threaded rod (11) is threadedly installed above the pad (9). The upper end of the threaded rod (11) extends into the interior of the supporting steel pipe (2) and is fixedly installed with a top plate. The top plate is fixedly connected to the supporting steel pipe (2). A rubber pad (12) is fixedly installed below the pad (9).

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