Optical platform damping device used in vacuum environment

Abstract

The optical platform damping device used in the vacuum environment comprises a supporting plate, supporting rods are fixedly installed on the periphery of the bottom of the supporting plate, a top plate is arranged at the top of the supporting plate, guide rods are fixedly installed at the bottom of the top plate, a damping assembly is arranged on the surface of the supporting plate, and the damping assembly is arranged on the surface of the supporting plate. The damping assembly comprises box bodies and spring dampers, the four box bodies are all located on the periphery of the top of the supporting plate, sliding rods are fixedly installed in inner cavities of the four box bodies, the damping assembly is arranged, through cooperation of connecting rods, downward vibration force of the top plate can be converted into transverse force, and at the moment, damping springs are driven by the damping springs through the tension of the damping springs; the transverse force can be damped, meanwhile, the spring damper can also damp the downward force of the top plate, and by conducting damping work on the top plate, it is effectively avoided that in the using process of the device, the scientific experiment is normally conducted due to vibration influences, and the stability of the scientific experiment is guaranteed.

Description

Technical Field

[0001] This utility model relates to a vibration damping device for an optical platform in a vacuum environment, belonging to the technical field of vibration damping devices. Background Technology

[0002] Optical platforms, also known as optical breadboards, optical desktops, scientific desktops, or experimental platforms, provide a level and stable surface. Generally, platforms require vibration isolation measures to ensure they are not disturbed by external factors and that scientific experiments can proceed normally. They are divided into two main categories: active and passive. Passive platforms are further divided into rubber and air flotation types. Optical platforms use vibration damping devices during use.

[0003] Chinese Patent Publication No. (CN 217111408 U) discloses a vibration damping device for an optical platform in a vacuum environment, including an optical platform and an air spring vibration damping mechanism. The optical platform is set inside a vacuum chamber, and the air spring vibration damping mechanism is set outside the vacuum chamber. A fixed bracket is set at the bottom of the optical platform, and a through hole is opened at the bottom of the vacuum chamber. The bottom of the fixed bracket passes through the through hole and connects to the air spring vibration damping mechanism. A first vacuum flange is set at the through hole of the vacuum chamber, and a second vacuum flange is set on the air spring vibration damping mechanism. The first vacuum flange and the second vacuum flange are connected by a vacuum bellows. The vibration damping device for an optical platform in a vacuum environment designed in this solution adopts a connection method of vacuum flange and bellows, so that the optical platform is in a vacuum environment, while the air spring vibration damping mechanism is in a non-vacuum environment, which solves the technical difficulty that air spring vibration dampers cannot be directly used in vacuum chambers.

[0004] The aforementioned device mainly relies on air springs to dampen the platform. However, in actual use, the gas pressure inside the air spring is significantly affected by temperature. At high temperatures, the gas expands, leading to increased stiffness, while at low temperatures, the gas contracts, resulting in decreased support force. Dynamic compensation is required. In addition, air springs will age after prolonged use, which may lead to leakage of the gas inside, potentially affecting the platform's damping performance.

[0005] To address this, a vibration damping device for optical platforms in a vacuum environment is proposed. Utility Model Content

[0006] In view of this, the present invention provides a vibration damping device for an optical platform in a vacuum environment to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is implemented as follows: A vibration damping device for an optical platform in a vacuum environment includes a support plate. Support rods are fixedly installed around the bottom of the support plate. A top plate is provided on the top of the support plate. Guide rods are fixedly installed at the bottom of the top plate. A vibration damping assembly is provided on the surface of the support plate. The vibration damping assembly includes a housing and a spring damper. Four housings are located around the top of the support plate. Slide rods are fixedly installed in the inner cavities of the four housings. Sliding blocks are slidably connected to the surfaces of the four slide rods. Damping springs are fixedly connected to the inner sides of the eight sliding blocks. Connecting rods are movably connected to the tops of the eight sliding blocks. Movable blocks are movably connected to the other ends of the eight connecting rods. The eight movable blocks are fixedly installed at the bottom of the top plate.

[0008] More preferably, all four spring dampers are fixedly installed around the top of the support plate, and the tops of all four spring dampers are fixedly installed at the bottom of the top plate.

[0009] More preferably, each of the four boxes has a groove on its surface, and the outer side of the slider is slidably connected to the inner cavity of the groove.

[0010] More preferably, each of the four boxes has a mounting bolt threaded onto its surface, and the bottom of the mounting bolt is threaded onto the inner surface of the support plate.

[0011] More preferably, shock-absorbing pads are fixedly installed at the bottom of the four support rods, and the shock-absorbing pads are made of rubber.

[0012] More preferably, the top of each shock-absorbing pad is threaded with a fixing bolt, and the bottom of each of the four fixing bolts is threaded to the ground.

[0013] More preferably, each of the support plates has a slot at its top, and the four guide rods pass through the inner cavity of the four slots and extend to the bottom of the support plate.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] I. This utility model, by setting up a shock-absorbing component and cooperating with the connecting rod, allows the downward force of the top plate vibration to be converted into a lateral force. At this time, the damping spring can dampen the lateral force through its own tension, and the spring damper can also dampen the downward force of the top plate. By damping the top plate, the vibration during use is effectively prevented from affecting the normal conduct of scientific experiments, thus ensuring the stability of scientific experiments.

[0016] II. This utility model, by setting a sliding groove, can limit the movement of the slider, preventing deviation during sliding groove movement and thus affecting the shock absorption of the top plate. By setting mounting bolts, the box can be disassembled and assembled, facilitating the maintenance of the components inside the box. By setting shock-absorbing pads, due to the characteristics of their material, the overall shock absorption effect of the equipment can be further improved. By setting fixing bolts, the equipment can be stabilized, preventing displacement of the equipment due to accidental collisions. By setting slots, the movement of the guide rod can be limited, thereby achieving stability when the top plate moves up and down.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] 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 of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the guide rod structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the spring damper structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the shock absorption component structure of this utility model;

[0023] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A.

[0024] Reference numerals: 1. Support plate; 2. Shock absorber assembly; 201. Box body; 202. Slide rod; 203. Slider; 204. Damping spring; 205. Connecting rod; 206. Movable block; 207. Slide groove; 208. Mounting bolt; 209. Spring damper; 210. Shock absorber pad; 3. Support rod; 4. Top plate; 5. Fixing bolt; 6. Guide rod; 7. Groove. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-4 As shown, this utility model embodiment provides a vibration damping device for an optical platform in a vacuum environment, including a support plate 1. Support rods 3 are fixedly installed around the bottom of the support plate 1. A top plate 4 is provided on the top of the support plate 1. Guide rods 6 are fixedly installed at the bottom of the top plate 4. A vibration damping assembly 2 is provided on the surface of the support plate 1. The vibration damping assembly 2 includes a housing 201 and a spring damper 209. Four housings 201 are located around the top of the support plate 1. A sliding rod is fixedly installed in the inner cavity of each of the four housings 201. 202, each of the four sliding rods 202 has a slider 203 slidably connected to its surface. Each of the eight sliders 203 has a damping spring 204 fixedly connected to its inner side. Each of the eight sliders 203 has a connecting rod 205 movably connected to its top. Each of the eight connecting rods 205 has a movable block 206 movably connected to its other end. Each of the eight movable blocks 206 is fixedly installed at the bottom of the top plate 4. Each of the four spring dampers 209 is fixedly installed around the top of the support plate 1. Each of the four spring dampers 209 is fixedly installed at the bottom of the top plate 4.

[0029] By setting up the shock absorption component 2 and cooperating with the connecting rod 205, the downward force of the top plate 4 can be converted into a lateral force. At this time, the damping spring 204 can dampen the lateral force through its own tension, and the spring damper 209 can also dampen the downward force of the top plate 4. By damping the top plate 4, the vibration can be effectively prevented from affecting the normal conduct of scientific experiments during use, thus ensuring the stability of scientific experiments.

[0030] Example 2

[0031] like Figure 1-5As shown, in one embodiment, the surfaces of the four boxes 201 are provided with grooves 207, the outer side of the slider 203 is slidably connected to the inner cavity of the groove 207, the surfaces of the four boxes 201 are threaded with mounting bolts 208, the bottom of the mounting bolts 208 is threaded to the inner surface of the support plate 1, the bottom of the four support rods 3 is fixedly installed with shock-absorbing pads 210, the material of the shock-absorbing pads 210 is rubber, the top of the shock-absorbing pads 210 is threaded with fixing bolts 5, the bottom of the four fixing bolts 5 is threaded to the ground, the top of the support plate 1 is provided with slots 7, and the four guide rods 6 pass through the inner cavity of the four slots 7 and extend to the bottom of the support plate 1.

[0032] By setting the slide groove 207, the movement of the slider 203 can be limited to prevent the slide groove 207 from shifting during movement, thus affecting the shock absorption of the top plate 4. By setting the mounting bolt 208, the box 201 can be disassembled and assembled, facilitating the maintenance of the components inside the box 201. By setting the shock-absorbing pad 210, the overall shock absorption effect of the equipment can be further improved due to the characteristics of its material. By setting the fixing bolt 5, the equipment can be stabilized, preventing displacement of the equipment due to accidental collisions. By setting the slot 7, the movement of the guide rod 6 can be limited, thereby achieving stability when the top plate 4 moves up and down.

[0033] When this utility model is in operation: when the top plate 4 moves downward due to vibration, the movable block 206 moves downward synchronously. The movable block 206 cooperates with the connecting rod 205, causing the connecting rod 205 to push the slider 203 to move inward. The connecting rod 205 converts the downward force of the top plate 4 into a lateral force. At this time, the damping spring 204 deforms due to the compression of the slider 203. The damping spring 204 dampens the force of the slider 203 through its own damping characteristics. At the same time, the force of the top plate 4 moving downward is also damped by the spring damper 209, thereby damping the vibration force of the top plate 4 again, thus achieving the vibration reduction effect of the top plate 4.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An optical platform damping device for use in a vacuum environment, comprising a support plate (1), characterized in that, Support rods (3) are fixedly installed around the bottom of the support plate (1). A top plate (4) is provided on the top of the support plate (1). Guide rods (6) are fixedly installed at the bottom of the top plate (4). A shock-absorbing assembly (2) is provided on the surface of the support plate (1). The shock-absorbing assembly (2) includes a housing (201) and a spring damper (209). The four housings (201) are located around the top of the support plate (1). The four housings (201) have... Each of the four slide rods (202) is fixedly installed in the inner cavity. Each of the four slide rods (202) is slidably connected to a slider (203). Each of the eight sliders (203) is fixedly connected to a damping spring (204) on its inner side. Each of the eight sliders (203) is movably connected to a connecting rod (205) on its top. Each of the eight connecting rods (205) is movably connected to a movable block (206) at its other end. Each of the eight movable blocks (206) is fixedly installed at the bottom of the top plate (4).

2. The optical bench damping device for vacuum environment according to claim 1, wherein: All four spring dampers (209) are fixedly installed around the top of the support plate (1), and the tops of the four spring dampers (209) are fixedly installed at the bottom of the top plate (4).

3. The optical bench damping device for vacuum environment according to claim 1, wherein: The surfaces of the four boxes (201) are provided with grooves (207), and the outer side of the slider (203) is slidably connected to the inner cavity of the groove (207).

4. The optical bench damping device for vacuum environment according to claim 1, wherein: Each of the four boxes (201) has a mounting bolt (208) threaded onto its surface, and the bottom of the mounting bolt (208) is threaded onto the inner surface of the support plate (1).

5. The optical bench damping device for use in a vacuum environment of claim 1, wherein: The bottom of the four support rods (3) is fixedly equipped with shock-absorbing pads (210), which are made of rubber.

6. The optical bench damping device for use in a vacuum environment of claim 5, wherein: The top of each shock-absorbing pad (210) is threaded with a fixing bolt (5), and the bottom of each of the four fixing bolts (5) is threaded to the ground.

7. The optical bench damping device for use in a vacuum environment of claim 1, wherein: The top of the support plate (1) is provided with a slot (7), and the four guide rods (6) pass through the inner cavity of the four slots (7) and extend to the bottom of the support plate (1).

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