CN216715082U

CN216715082U - Micro-vibration damper

Info

Publication number: CN216715082U
Application number: CN202123231599.4U
Authority: CN
Inventors: 郭有松
Original assignee: Jiangsu Gongbang Zhenkong Technology Co ltd
Current assignee: Jiangsu Gongbang Zhenkong Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-10
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a micro-vibration damper which comprises a bottom plate, wherein a sleeve is fixed on the bottom plate, limiting plates are arranged on the inner wall of the sleeve, the top end of the sleeve is connected with a top plate through an elastic sealing element, the middle part of the bottom surface of the top plate is connected with a piston rod, a piston on the piston rod is positioned between two adjacent limiting plates, a spring is arranged between the bottom end of the piston rod and the upper surface of the bottom plate, a supporting plate is arranged at the bottom end of the piston rod, the spring is positioned between the supporting plate and the bottom plate, and a jack extending into the piston rod is formed in the middle part of the bottom surface of the supporting plate. This micro-vibration damper sets up the limiting plate respectively at the upper and lower part of the inside piston of sleeve, plays the effect spacing to the piston, sets up the spring simultaneously between piston rod and bottom plate and realizes the shock attenuation and the reseing of piston, has reduced the vibration range greatly, has improved the damping effect simultaneously, is of value to the stability of precision apparatus.

Description

Micro-vibration damper

Technical Field

The utility model relates to the field of dampers, in particular to a micro-vibration damper.

Background

Vibration dampers are devices that convert the mechanical vibrational energy of a solid into thermal energy. External type vibration dampers are often required when the damping of the vibration system itself, or the internal damping of some vibration isolation measures, is not sufficient to dampen the vibration response of the system near the natural frequency. The method is mainly applied to improving the stability of a precision instrument and improving the testing precision. The piston vibration amplitude of the existing vibration damper is too large, which is not favorable for the stability of a precision instrument.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a micro-vibration damper, which solves the problems that the existing vibration damper has overlarge piston vibration amplitude and is not favorable for the stability of a precision instrument.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a micro-vibration damper, includes the bottom plate, be fixed with the sleeve on the bottom plate, telescopic inner wall is equipped with the limiting plate, is connected through elastic sealing element between telescopic top and the roof, the middle part of roof bottom surface is connected with the piston rod, and the piston on the piston rod is located between two upper and lower adjacent limiting plates, install the spring between the bottom of piston rod and the upper surface of bottom plate.

Further, in the micro-vibration damper, the limiting plate is disc-shaped.

Further defined, the micro-vibration damper as described above, wherein the number of the pistons is not less than two.

Further, in the micro-vibration damper, the elastic sealing member is a rubber member.

Further defined, the above-mentioned micro-vibration damper, wherein a support plate is provided at the bottom end of the piston rod, and the spring is located between the support plate and the bottom plate.

Further inject, foretell a little vibration damper, wherein, the jack that extends to in the piston rod is seted up at the bottom surface middle part of supporting disk, and the aperture that communicates with the jack is seted up to the side of piston rod, the middle part of bottom plate upper surface is fixed with the guide bar, and the guide bar is located the inboard of spring, and the top of guide bar extends to in the jack.

Further, the diameter of the top end of the guide rod is gradually decreased from bottom to top.

The utility model has the following beneficial effects: this micro-vibration damper sets up the limiting plate respectively at the upper and lower part of the inside piston of sleeve, plays the effect spacing to the piston, sets up the spring simultaneously between piston rod and bottom plate and realizes the shock attenuation and the reseing of piston, has reduced the vibration range greatly, has improved the damping effect simultaneously, is of value to the stability of precision apparatus.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a base plate; 2. a top plate; 3. a piston rod; 4. a guide bar; 5. a sleeve; 6. a spring; 7. A jack; 8. a limiting plate; 9. an elastomeric seal; 10. a piston; 11. a small hole; 12. and (4) supporting the disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a micro-vibration damper comprises a bottom plate 1, a sleeve 5 is fixed on the bottom plate 1, a limiting plate 8 is arranged on the inner wall of the sleeve 5, the limiting plate 8 is disc-shaped, the limiting plate 8 can also adopt a plurality of plate bodies with other shapes arranged along the inner wall of the sleeve in a surrounding way, the limiting plate 8 can play a role in limiting and supporting when a piston 10 contacts with the limiting plate 8, the top end of the sleeve 5 is connected with a top plate 2 through an elastic sealing part 9, the elastic sealing part 9 adopts a rubber part for forming sealing between the top plate 2 and the sleeve 5, the elastic sealing part 9, the top plate 2, a closed cavity filled with damping media are formed between the bottom plate 1 and the sleeve 5, the damping media adopt hydraulic oil and the like, meanwhile, the transition can be realized by shaping deformation when the top plate 2 is pressed downwards, a piston rod 3 is connected to the middle part of the bottom surface of the top plate 2, and the piston 10 on the piston rod 3 is positioned between an upper adjacent limiting plate 8 and a lower limiting plate 8, two are no less than to piston 10's quantity, have improved damping performance through the cooperation of a plurality of pistons 8, install spring 6 between the bottom of piston rod 3 and the upper surface of bottom plate 1, and spring 6 can adopt the welded mode to fix.

The bottom of piston rod 3 is equipped with supporting disk 12, and spring 6 is located between supporting disk 12 and bottom plate 1, and supporting disk 12 is used for supporting the bottom of piston rod 3, improves the area of contact of spring 6.

Jack 7 that extends to in the piston rod 3 is seted up at the bottom surface middle part of supporting disk 12, the aperture 11 that communicates with jack 7 is seted up to the side of piston rod 3, the middle part of 1 upper surface of bottom plate is fixed with guide bar 4, guide bar 4 is located the inboard of spring 6, the top of guide bar 4 extends to in the jack 7, the damping has also been realized through the cooperation of guide bar 4 and the interior damping medium of jack 7 simultaneously, guide bar 4 has played the effect spacing and 3 direction of piston rod to spring 6, the diameter on guide bar 4 top is steadilyd decrease by supreme down in proper order, make and leave certain clearance between guide bar 4 and the jack 7 inner wall, make things convenient for fluid to discharge by aperture 11 from jack 7.

When the top plate is pressed downwards, the piston rod drives the piston to press the damping medium to do work, the spring is compressed to do work, the damping medium in the jack 7 is compressed by the guide rod 4 to do work 11, mechanical energy is converted into heat energy of the damping medium under various kinds of work, accordingly, consumption of vibration energy is achieved, the top plate 2 is reset to the original position under the action of the spring 6 after the consumption is finished, and vibration reduction and reset are achieved.

This micro-vibration damper sets up limiting plate 8 respectively at the upper and lower part of 5 inside pistons 10 of sleeve, plays the effect spacing to piston 10, sets up spring 6 simultaneously between piston rod 3 and bottom plate 1 and realizes the reseing of shock attenuation and piston 10, has reduced the vibration range greatly, has improved the damping effect simultaneously, is of value to the stability of precision apparatus.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A micro-vibration damper, comprising a base plate (1), characterized in that: be fixed with sleeve (5) on bottom plate (1), the inner wall of sleeve (5) is equipped with limiting plate (8), is connected through elastic sealing element (9) between the top of sleeve (5) and roof (2), the middle part of roof (2) bottom surface is connected with piston rod (3), and piston (10) on piston rod (3) are located between two adjacent limiting plate (8) from top to bottom, install spring (6) between the bottom of piston rod (3) and the upper surface of bottom plate (1).

2. A micro-vibration damper as claimed in claim 1, wherein: the limiting plate (8) is disc-shaped.

3. A micro-vibration damper as claimed in claim 1, wherein: the number of the pistons (10) is not less than two.

4. A micro-vibration damper as claimed in claim 1, wherein: the elastic sealing element (9) is a rubber element.

5. A micro-vibration damper as claimed in claim 1, wherein: the bottom end of the piston rod (3) is provided with a supporting plate (12), and the spring (6) is located between the supporting plate (12) and the bottom plate (1).

6. A micro-vibration damper as claimed in claim 5, wherein: jack (7) that extend to in piston rod (3) are seted up at the bottom surface middle part of supporting disk (12), and aperture (11) with jack (7) intercommunication are seted up to the side of piston rod (3), the middle part of bottom plate (1) upper surface is fixed with guide bar (4), and guide bar (4) are located the inboard of spring (6), and the top of guide bar (4) extends to in jack (7).

7. A micro-vibration damper as claimed in claim 6, wherein: the diameter of the top end of the guide rod (4) is gradually reduced from bottom to top.