Shock absorber and damping system

Abstract

The utility model relates to a kind of shock absorber and damping system, including main body device and sealing plate;Main body device includes fluid cylinder, fluid cylinder includes cylinder body and connecting plate, and connecting plate is opened through hole corresponding cylinder body;Sealing plate is detachably arranged in through hole.This application is detachably connected by connecting plate and sealing plate, and the internal structure of different specifications of cylinder body is conveniently replaced alone, to realize adjusting overall structure stiffness, satisfy the demand of different damping performance.

Description

Technical Field

[0001] This utility model relates to the field of precision vibration reduction technology, specifically to a vibration damper and a vibration reduction system. Background Technology

[0002] With the continuous improvement of the accuracy of ultra-precision machining equipment and measuring instruments, the vibration of their working environment is becoming more demanding in terms of micro-amplitude and low frequency, which in turn puts forward more stringent requirements on the vibration reduction performance of vibration damping tables.

[0003] In existing technologies, active vibration dampers generally consist of an air damping device and a voice coil motor. The air damping device includes a fluid cylinder, which comprises a top plate, a cylinder body, and a bottom plate arranged vertically. Different vibration damping performance requirements typically necessitate different numbers of motors and different internal structures. Since the top plate, cylinder body, and bottom plate are usually integrated, the bottom plate and cylinder body cannot be disassembled, resulting in a fixed internal structure. When adapting to different vibration performance requirements, it is impossible to match the internal structure; only different numbers of voice coil motors can be used, lacking flexibility. Utility Model Content

[0004] Based on the above description, this utility model provides a vibration damper and a vibration damping system, aiming to solve the problem that the fluid cylinder of the existing vibration damper is an integrated structure that cannot be disassembled.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: In a first aspect, a vibration damper includes: The main device includes a fluid cylinder, which includes a cylinder body and a connecting plate, and the connecting plate has a through hole corresponding to the cylinder body; A sealing plate is detachably disposed within the through hole.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the main body device includes a vibration damping mechanism, which includes a float assembly and a frequency-fixed component. The float assembly includes a lower swing cover, an elastic seal, and a support rod. One end of the lower swing cover away from the connecting plate is connected to the cylinder body through the elastic seal. One end of the support rod extends into the movable cavity of the lower swing cover, and the other end of the support rod passes through the opening of the movable cavity and is exposed outside the movable cavity. The frequency-fixed component is used to control the vertical natural frequency of the lower swing cover.

[0008] Furthermore, one end of the support rod is connected to the lower swing cover, and the fixed frequency assembly includes at least one elastic sheet, which is detachably connected to one end of the lower swing cover near the connecting plate and the connecting plate.

[0009] Furthermore, the elastic sheet is a leaf spring.

[0010] Furthermore, the fixed frequency assembly includes at least one pair of locking blocks, and the at least one elastic sheet is detachably connected to one end of the lower cover near the connecting plate via the at least one pair of locking blocks.

[0011] Furthermore, the fixed-frequency component includes at least one pair of pads, and the at least one elastic sheet is detachably connected to the connecting plate via the at least one pair of pads.

[0012] Furthermore, the active cavity is configured in a conical shape.

[0013] Furthermore, the fixed frequency component includes a disc and a plurality of pull rods. The disc is sleeved on one end of the support rod, and the plurality of pull rods are spaced apart along the circumference of the support rod. The two ends of the plurality of pull rods are connected one-to-one to the elastic seal and the disc.

[0014] Furthermore, the movable cavity is configured as a circle.

[0015] In a second aspect, a vibration damping system includes a vibration damper as described in the first aspect.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: (1) This application adopts a detachable connection method through connecting plate and sealing plate, which facilitates the individual replacement of internal structures of different specifications of cylinder body, so as to adjust the overall structural stiffness and meet the needs of different vibration reduction performance.

[0017] (2) This application uses a detachable connection method for the elastic plates, which allows for the addition or removal of elastic plates to adjust the range of vibration frequency of the lower swing cover. By changing the number of elastic plates, the required vertical natural frequency of the lower swing cover can be adapted. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a vertical sectional view of a vibration damper provided in Embodiment 1 of this utility model; Figure 2 A sectional view of the vibration damping mechanism provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the structure of a vibration damper provided in embodiments one and two of this utility model; Figure 4 This is a sectional view of a vibration damper provided in Embodiment 2 of this utility model; Figure 5 This is a sectional view of the vibration damping mechanism provided in Embodiment 2 of this utility model.

[0020] Explanation of reference numerals in the attached figures: 10. Main body; 11. Fluid cylinder; 1111. Cylinder body; 112. Connecting plate; 1121. Through hole; 113. Sealing strip; 12. Vibration damping mechanism; 122. Float assembly; 1221. Lower swing cover; 1222. Elastic seal; 1223. Support rod; 123. Fixed frequency assembly; 1231. Elastic sheet; 1232. Locking block; 1233. Pad; 1234. Disc; 1235. Tie rod; 20. Sealing plate; 30. Output components; 40. Movable board. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0023] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0024] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0025] Example 1 Reference Figures 1 to 3 As shown, this utility model provides a technical solution: a vibration damper, including a main body device 10 and a sealing plate 20; the main body device 10 includes a fluid cylinder 11, the fluid cylinder 11 includes a cylinder body 111 and a connecting plate 112, the connecting plate 112 is provided with a through hole 1131 corresponding to the cylinder body 111; the sealing plate 20 is detachably disposed in the through hole 1131.

[0026] For example, the sealing plate 20 can be connected to the connecting plate 112 by fasteners or snap-fit ​​components. The fasteners can be bolts or screws, etc.

[0027] In this embodiment, the second connecting plate 113 and the sealing plate 20 are detachably connected, facilitating the individual replacement of the internal structure of the cylinder 111. By replacing the internal structure of the cylinder 111 with different specifications, the overall structural rigidity can be adjusted to meet different vibration reduction performance requirements.

[0028] Reference Figure 4 As shown, in some embodiments, a sealing strip is provided between the first connecting plate 112 and the wall of the through hole 1131.

[0029] In this embodiment, when the cylinder 111 is inflated, the sealing strip effectively prevents air from leaking between the sealing plate 20 and the first connecting plate 112, ensuring the stability of the air damping effect.

[0030] Reference Figures 1 to 2 As shown, in some embodiments, the main device 10 includes a vibration damping mechanism 12, which includes a float assembly 122 and a frequency-fixed component 123. The float assembly 122 includes a lower swing cover 1221, an elastic seal 1222, and a support rod 1223. One end of the lower swing cover 1221 away from the connecting plate 112 is connected to the cylinder 111 through the elastic seal 1222. One end of the support rod 1223 extends into the movable cavity of the lower swing cover 1221, and the other end of the support rod 1223 passes through the opening of the movable cavity and is exposed outside the movable cavity. The frequency-fixed component 123 is used to control the vertical natural frequency of the lower swing cover 1221.

[0031] For example, the resilient seal 1222 can be a sealing membrane, etc.

[0032] In this embodiment, when fluid enters the cylinder 111 and impacts the lower swing cover 1221, the support rod 1223 can limit the lateral displacement of the lower swing cover 1221. At the same time, the fixed frequency component 123 controls the vertical natural frequency through rigid constraint, so that the lower swing cover 1221 vibrates at the vertical natural frequency.

[0033] Reference Figures 1 to 2 As shown, in some embodiments, one end of the support rod 1223 is connected to the lower cover 1221, and the fixed frequency assembly 123 includes at least one elastic sheet 1231, which is detachably connected to the end of the lower cover 1221 near the connecting plate 112 and the connecting plate 112.

[0034] For example, the elastic sheet 1231 can be a leaf spring, etc.

[0035] In this embodiment, the stiffness of the elastic plate 1231 can constrain and control the vertical natural frequency. The elastic plate 1231 is detachably connected, allowing for the addition or removal of elastic plates 1231 to adjust the range of the vertical natural frequency of the lower hem cover 1221. Thus, by changing the number of elastic plates 1231, the required vertical natural frequency of the lower hem cover 1221 can be accommodated.

[0036] For example, the vertical natural frequency of the hem cover 1221 increases or decreases as the number of elastic plates 1231 increases or decreases. That is, as the number of elastic plates 1231 increases, the vertical natural frequency of the hem cover 1221 also increases; as the number of elastic plates 1231 decreases, the vertical natural frequency of the hem cover 1221 also decreases.

[0037] Reference Figures 1 to 2 As shown, in some embodiments, the fixed frequency assembly 123 includes at least one pair of locking blocks 1232, and at least one elastic sheet 1231 is detachably connected to one end of the lower cover 1221 near the connecting plate 112 via at least one pair of locking blocks 1232.

[0038] For example, at least one elastic piece 1231 is located between each pair of locking blocks 1232.

[0039] In this embodiment, each pair of locking blocks 1232 can not only fix the elastic sheet 1231 to the lower cover 1221, but also facilitate the assembly and disassembly of the elastic sheet 1231.

[0040] Reference Figures 1 to 2 As shown, in some embodiments, the fixed frequency component 123 includes at least a pair of pads 1233, and at least one elastic sheet 1231 is detachably connected to the connecting plate 112 via at least a pair of pads 1233.

[0041] For example, at least one elastic sheet 1231 is located between each pair of pads 1233.

[0042] In this embodiment, each pair of pads 1233 can disperse the stress of the elastic sheet 1231, thereby extending the service life of the elastic sheet 1231.

[0043] Reference Figures 1 to 2 As shown, in some embodiments, the active cavity is configured as a cone.

[0044] Example 2 Reference Figures 4 to 5 As shown, unlike Embodiment 1, the fixed frequency component 123 includes a disc 1234 and a plurality of pull rods 1235. The disc 1234 is sleeved on one end of the support rod 1223. The plurality of pull rods 1235 are spaced apart along the circumference of the support rod 1223. The two ends of the plurality of pull rods 1235 are connected to the elastic seal 1222 and the disc 1234 respectively.

[0045] In this embodiment, the pull rod 1235 can provide a preload force to the lower swing cover 1221, so that the lower swing cover 1221 reaches a certain vertical natural frequency, thereby achieving high-performance vibration reduction.

[0046] Reference Figures 4 to 5 As shown, in some embodiments, the active cavity is configured as a circle.

[0047] Example 3 This utility model provides a technical solution: a vibration reduction system, including the vibration damper described above.

[0048] The vibration damping system includes an output component 30 and a movable plate 40. There are multiple output components 30, which are spaced apart circumferentially along the cylinder body 111. The movable plate 40 is connected to the output end of the output component 30, and the other end of the support rod 1223 is connected to the movable plate 40 by screws or the like.

[0049] The output component 30 can be a voice coil motor, etc.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vibration damper, characterized in that, include: The main device (10) includes a fluid cylinder (11), the fluid cylinder (11) includes a cylinder body (111) and a connecting plate (112), and the connecting plate (112) has a through hole (1131) corresponding to the cylinder body (111). The sealing plate (20) is detachably disposed within the through hole (1131).

2. The vibration damper according to claim 1, characterized in that, The main body device (10) includes a vibration damping mechanism (12), which includes a float assembly (122) and a frequency fixing assembly (123). The float assembly (122) includes a lower swing cover (1221), an elastic seal (1222), and a support rod (1223). One end of the lower swing cover (1221) away from the connecting plate (112) is connected to the cylinder (111) through the elastic seal (1222). One end of the support rod (1223) extends into the movable cavity of the lower swing cover (1221), and the other end of the support rod (1223) passes through the opening of the movable cavity and is exposed outside the movable cavity. The frequency fixing assembly (123) is used to control the vertical natural frequency of the lower swing cover (1221).

3. The vibration damper according to claim 2, characterized in that, One end of the support rod (1223) is connected to the lower cover (1221). The fixed frequency assembly (123) includes at least one elastic sheet (1231). The at least one elastic sheet (1231) is detachably connected to one end of the lower cover (1221) near the connecting plate (112) and the connecting plate (112).

4. The vibration damper according to claim 3, characterized in that, The elastic sheet (1231) is a leaf spring.

5. The vibration damper according to claim 3, characterized in that, The fixed frequency assembly (123) includes at least one pair of locking blocks (1232), and the at least one elastic sheet (1231) is detachably connected to one end of the lower hem cover (1221) near the connecting plate (112) via the at least one pair of locking blocks (1232).

6. The vibration damper according to claim 5, characterized in that, The fixed frequency component (123) includes at least one pair of pads (1233), and the at least one elastic sheet (1231) is detachably connected to the connecting plate (112) via the at least one pair of pads (1233).

7. The vibration damper according to claim 6, characterized in that, The active cavity is constructed in a cone shape.

8. The vibration damper according to claim 2, characterized in that, The fixed frequency component (123) includes a disc (1234) and a plurality of pull rods (1235). The disc (1234) is sleeved on one end of the support rod (1223). The plurality of pull rods (1235) are arranged at intervals along the circumference of the support rod (1223). The two ends of the plurality of pull rods (1235) are connected one-to-one to the elastic seal (1222) and the disc (1234).

9. The vibration damper according to claim 8, characterized in that, The movable cavity is constructed in a circular shape.

10. A vibration reduction system, characterized in that, Includes the vibration damper according to any one of claims 1 to 9.

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