CN208417941U - A kind of vibration damping bellows - Google Patents
A kind of vibration damping bellows Download PDFInfo
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- CN208417941U CN208417941U CN201821007149.2U CN201821007149U CN208417941U CN 208417941 U CN208417941 U CN 208417941U CN 201821007149 U CN201821007149 U CN 201821007149U CN 208417941 U CN208417941 U CN 208417941U
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- Prior art keywords
- tube body
- metal
- multistage
- drum
- metal bar
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Abstract
The utility model discloses a kind of vibration damping bellows, including upper tube body and metal drum, the lower end surface of upper tube body is fixed with multistage metal bar, and multistage metal bar includes upper, middle and lower；The upper surface of the metal drum is equipped with circular open, the middle part and lower part of the multistage metal bar are placed in the metal drum, spring is externally provided in the middle part of multistage metal bar in metal drum, the outer diameter of the spring is greater than the diameter of the circular open, damping fluid is filled in the metal drum, the lower end surface of metal drum is fixed with lower tube body.The utility model uses the damping mode that spring is combined with damping fluid, since the inherent damping of spring is small, therefore damping fluid adds the damped coefficient that the utility model can be improved, damping fluid can absorb well and dissipation supporting surface on the energy that transmits, so that the utility model has biggish vertical rigidity and damping, the vibration being effectively isolated between pipeline and supporting surface.
Description
Technical field
The utility model relates to a kind of vibration absorbers, more particularly to a kind of vibration damping bellows.
Background technique
Currently, China for pipeline damping technology mainly application have cushion blocking, damper, flexible rubber fittings,
Flexible suspension etc. is broadly divided into metal spring, rubber damper, air spring and cork vibration damping.Wherein, metal spring class subtracts
Vibrating device, the inherent damping of its own is small, and the free damping period is long, is easy to produce resonance and propagates high-frequency vibration；Rubber subtracts
Device itself static displacement that shakes is small, is not suitable for lower interfering frequency and the big equipment of weight, and the heat-resisting quantity of rubber, corrosion resistant
Corrosion is poor, is easy to produce aging.
In vibration and noise reducing engineering, vibration absorber is generallyd use pipeline and supporting surface is isolated, vibration absorber can be absorbed
Supporting surface-pipe-line system vibrational energy.Since the vibration that pipeline generates can be propagated along support towards building element, vibration
Dynamic decaying is slow, has an adverse effect for a long time to building element, and supporting surface can cause pipe to the vibration that pipeline generates
Road is persistently resonated, and will cause the rupture of pipeline when serious, gaspipe line more particularly to ship pipeline, factory and building or
Hot water line, these pipelines can all use swing pipe damper, but the effectiveness in vibration suppression of existing swing pipe damper is poor, therefore has
Necessity optimizes swing pipe damper.
Utility model content
Technical problem to be solved by the utility model is: the utility model provides a kind of vibration damping bellows, the vibration damping ripple
Pipe has biggish vertical rigidity and damping, the vibration that can be effectively isolated between pipeline and supporting surface.
The solution that the utility model solves its technical problem is: a kind of vibration damping bellows, including upper tube body and metal
Bucket, the lower end surface of upper tube body is fixed with multistage metal bar, and multistage metal bar includes upper, middle and lower, the top, in
Portion and lower part are the cylindrical body of concentrically axis, the fixed company in the top of the multistage metal bar and the lower end surface of the upper tube body
It connects, the diameter of the upper and lower part is all larger than the diameter at the middle part；The upper surface of the metal drum is equipped with circular open, institute
The middle part and lower part for stating multistage metal bar are placed in the metal drum, outside the middle part of the multistage metal bar in metal drum
Equipped with spring, the outer diameter of the spring is greater than the diameter of the circular open, is filled with damping fluid, metal drum in the metal drum
Lower end surface be fixed with lower tube body.
As a further improvement of the above technical scheme, the upper tube body and lower tube body are metal bellows.
Further improvement as above-mentioned technical proposal, the metal bellows are corrugated stainless steel tubing.
As a further improvement of the above technical scheme, the upper, middle and lower of the multistage metal bar is integrated into
Type.
As a further improvement of the above technical scheme, the diameter on the top of the multistage metal bar is not less than the upper tube
The outer diameter of body, the central axis on top are overlapped with the central axis of upper tube body.
As a further improvement of the above technical scheme, the diameter of the lower part of the multistage metal bar is not less than the spring
Outer diameter.
As a further improvement of the above technical scheme, the metal drum is cylindrical body, the upper tube body and lower tube body
Outer diameter is respectively less than the outer diameter of metal drum.
As a further improvement of the above technical scheme, the multistage metal bar is multistage rod iron, and the metal drum is steel
Bucket.
The beneficial effects of the utility model are: the utility model uses the damping mode that spring is combined with damping fluid,
Spring has flexibility, can reduce the acceleration of pipeline, but since the inherent damping of spring is small, adding for damping fluid can be mentioned
The damped coefficient of high the utility model, damping fluid can absorb well and dissipation supporting surface on the energy that transmits so that this reality
There is biggish vertical rigidity and damping, the vibration being effectively isolated between pipeline and supporting surface with novel.The utility model knot
Structure is simple, cheap, effectiveness in vibration suppression is superior, the vibration absorber suitable for all kinds of pipelines.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the stereoscopic schematic diagram of the utility model embodiment a1；
Fig. 2 is cross-sectional view of the utility model embodiment a1 along A-A hatching line.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.Finally, it should be noted that as text in term " center ",
The orientation or positional relationship of the instructions such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" is then based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this reality
With novel limitation.In addition, being used for description purposes only if term " first ", " second ", " third " in text, and should not be understood as
Indication or suggestion relative importance.
Referring to Figures 1 and 2, this is the embodiments of the present invention a1, specifically:
A kind of vibration damping bellows, including upper tube body 1 and metal drum 2, the lower end surface of upper tube body are fixed with multistage metal bar
4, multistage metal bar includes top 41, middle part 42 and lower part 43, and the upper, middle and lower is the cylinder of concentrically axis
The upper, middle and lower of body, the multistage metal bar is integrally formed, the top of the multistage metal bar and the upper tube body
Lower end surface welding, the diameter of the upper and lower part is all larger than the diameter at the middle part；The upper surface of the metal drum is equipped with
Circular open 21, by the circular open, the middle part and lower part of multistage metal bar are placed to described the multistage metal bar
In metal drum, spring 5 is externally provided in the middle part of the multistage metal bar in metal drum, the outer diameter of the spring is greater than the circle
The diameter of opening, the outer diameter of spring no more than the lower part of the multistage metal bar diameter so that spring is using middle part as guide post, frame
It is located between lower part and circular open；It is filled with damping fluid 6 in the metal drum, damping fluid is full of metal drum, under metal drum
End face is fixed with lower tube body 3, and the lower tube body of the utility model is preferably welded with the lower end surface of metal drum.The upper tube body
It is metal bellows with lower tube body, metal bellows has good flexibility, is less likely to occur to be broken after being vibrated；And
And the vertical rigidity of metal bellows is higher than general metal tube, can bear bigger vertical motion and heavier pipeline
Weight.Since the utility model is generally used in the vibration absorber of pipeline, working environment is mostly moist space, therefore in order to keep away
Exempt from the important components of the utility model to get rusty, the multistage metal bar is multistage rod iron, and the metal drum is steel drum, the gold
Category bellows is corrugated stainless steel tubing.Using the above structure, the utility model has the beneficial effects that the utility model uses spring
The damping mode combined with damping fluid, spring have flexibility, can reduce the acceleration of pipeline, but due to the inherent damping of spring
It is small, therefore damping fluid adds the damped coefficient that the utility model can be improved, damping fluid can absorb well and dissipate branch
The energy transmitted on support face is effectively isolated pipeline and support so that the utility model has biggish vertical rigidity and damping
Vibration between face.The utility model structure is simple, cheap, effectiveness in vibration suppression is superior, and the vibration damping suitable for all kinds of pipelines fills
It sets.
Due to the upper tube body lower end surface and the multistage rod iron top weld, the top of multistage rod iron it is straight
Diameter is not less than the outer diameter of upper tube body, and upper lobes lead to cut hand in order to prevent, the diameter on top preferably with the outer diameter of upper tube body one
It causes, the central axis on top is overlapped with the central axis of upper tube body；In order to reduce production cost, the upper tube body is with lower tube body
The consistent corrugated stainless steel tubing of model, the central axis of upper tube body and the central axis of lower tube body are kept as far as possible in working condition
It is overlapped.Since the lower end surface of the steel drum and the lower tube body are welded, the steel drum is cylindrical body, therefore the outer diameter of steel drum is not small
In the outer diameter of lower tube body, in order to improve welding rigidity, the outer diameter of steel drum is preferably greater than the outer diameter of lower tube body.
The diameter of the lower part of multistage rod iron and the outer diameter of spring are all larger than the diameter of the circular open, the utility model
Combination installation process is: multistage rod iron and spring are placed to first in double steel drum, then by two double of steel drums
Be welded into a steel drum, it is last toward at the circular open of steel drum to filling damping fluid inside steel drum.
It is further used as preferred embodiment, the upper surface of the upper tube body and supporting surface bracket weld, supporting surface branch
Frame is bolted under supporting surface, and the lower tube body and pipeline support weld, and pipe-support frame plays fixed support to pipeline
Effect.The utility model is between supporting surface and pipeline, and vibration on supporting surface is due to after the dissipation of damping fluid, only
There is a small amount of vibrational energy to pass on pipeline, deficiency causes the lasting resonance of pipeline, prevents pipeline and occurs because of lasting resonance
Rupture；Meanwhile the vibration on pipeline is due to after the energy-absorbing of spring, reducing influence of the vibrational energy to supporting surface, so that
The vibration frequency of supporting surface reduces, and vibrating noise is reduced, and both last vibration reaches dynamic equilibrium, supporting surface-pipe-line system
It is maintained under lower energy rank and vibrates.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (8)
1. a kind of vibration damping bellows, including upper tube body and metal drum, the lower end surface of upper tube body are fixed with multistage metal bar, multistage
Metal bar includes upper, middle and lower, and the upper, middle and lower is the cylindrical body of concentrically axis, the multistage
The top of metal bar is fixedly connected with the lower end surface of the upper tube body, and the diameter of the upper and lower part is all larger than the middle part
Diameter, it is characterised in that: the upper surface of the metal drum is equipped with circular open, and the middle part and lower part of the multistage metal bar are set
Enter into the metal drum, spring is externally provided in the middle part of the multistage metal bar in metal drum, the outer diameter of the spring is greater than
The diameter of the circular open, the metal drum is interior to be filled with damping fluid, and the lower end surface of metal drum is fixed with lower tube body.
2. a kind of vibration damping bellows according to claim 1, it is characterised in that: the upper tube body and lower tube body are metal
Bellows.
3. a kind of vibration damping bellows according to claim 2, it is characterised in that: the metal bellows is stainless steel ripple
Pipe.
4. a kind of vibration damping bellows according to claim 1, it is characterised in that: top, the middle part of the multistage metal bar
It is integrally formed with lower part.
5. a kind of vibration damping bellows according to claim 1, it is characterised in that: the diameter on the top of the multistage metal bar
Not less than the outer diameter of the upper tube body, the central axis on top is overlapped with the central axis of upper tube body.
6. a kind of vibration damping bellows according to claim 1, it is characterised in that: the diameter of the lower part of the multistage metal bar
Not less than the outer diameter of the spring.
7. a kind of vibration damping bellows according to claim 1, it is characterised in that: the metal drum be cylindrical body, it is described on
The outer diameter of tube body and lower tube body is respectively less than the outer diameter of metal drum.
8. a kind of vibration damping bellows according to claim 1, it is characterised in that: the multistage metal bar is multistage rod iron,
The metal drum is steel drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821007149.2U CN208417941U (en) | 2018-06-27 | 2018-06-27 | A kind of vibration damping bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821007149.2U CN208417941U (en) | 2018-06-27 | 2018-06-27 | A kind of vibration damping bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208417941U true CN208417941U (en) | 2019-01-22 |
Family
ID=65107246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821007149.2U Expired - Fee Related CN208417941U (en) | 2018-06-27 | 2018-06-27 | A kind of vibration damping bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208417941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679356A (en) * | 2018-06-27 | 2018-10-19 | 佛山科学技术学院 | A kind of vibration damping bellows |
| CN110455018A (en) * | 2019-08-23 | 2019-11-15 | 埃频(上海)仪器科技有限公司 | A kind of attachment device for closed circuit refrigeration system |
-
2018
- 2018-06-27 CN CN201821007149.2U patent/CN208417941U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679356A (en) * | 2018-06-27 | 2018-10-19 | 佛山科学技术学院 | A kind of vibration damping bellows |
| CN110455018A (en) * | 2019-08-23 | 2019-11-15 | 埃频(上海)仪器科技有限公司 | A kind of attachment device for closed circuit refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20210627 |