CN205919055U - Inhale tunable frequency's that shakes pipeline dynamic vibration absorber - Google Patents
Inhale tunable frequency's that shakes pipeline dynamic vibration absorber Download PDFInfo
- Publication number
- CN205919055U CN205919055U CN201620718633.0U CN201620718633U CN205919055U CN 205919055 U CN205919055 U CN 205919055U CN 201620718633 U CN201620718633 U CN 201620718633U CN 205919055 U CN205919055 U CN 205919055U
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- China
- Prior art keywords
- pipeline
- guide rod
- frequency
- frequency modulation
- dynamic vibration
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- Expired - Fee Related
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- Vibration Prevention Devices (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The utility model belongs to the technical field of vibration noise control, in particular to dynamic vibration absorber. An inhale tunable frequency's that shakes pipeline dynamic vibration absorber which technical scheme is: two nuts and the gasket unit nut locking structure that matches, with the locking of one or more frequency modulation gage block on the guide arm, two welding have the clamp of support, liner rubber elasticity layer to the guide arm structure that will have a plurality of frequency modulation gage blocks is fixed on the pipeline. The utility model discloses can select guide arm, frequency modulation gage block, rubber elasticity layer and clamp etc. According to the actual demand, the commonality is strong, can use the pipeline at different external diameters, different inside media, the whole nature of effect tunable frequency is strong, can adjust on line, and position and quantity through the interval between the fitting card hoop, quality piece realize that this dynamic vibration absorber acts on the adjustment of frequency promptly.
Description
Technical field
This utility model belongs to Control Technique of Vibration and Noise field, particularly to dynamic vibration absorber.
Background technology
The vibration and noise of Ship Power Equipment, can pass through the structure of pipe-line system and fluid outboard radiates, in a large number
The vibration of pipe-line system has become a principal element producing Ship Radiated-Noise.Using comprising ripple control, absorbing, granule
Damping, the resistance technology such as shake carrys out vibration noise in broad frequency band for the control piping system, becomes urgent being essential of pipe moving noise control
Ask.
On ship, all with some or the operating of several fixed frequency, vibrational energy concentrates on line spectrum peak to most equipment
Value, pipeline dynamic vibration absorber can significantly reduce or even eliminate line spectrum peak value, significant to the Stealth Fighter improving ship.
But because ship equipment (as various blower fan, water pump, oil pump etc.) is numerous, driving frequency is enriched, and medium difference, caliber type in pipe
More than number, pipeline moves towards complexity and pipe-support spacing is various, leads to the bump leveller needed for different pipe sections to act on band limits rich
Richness, this results in the drawbacks of pipeline dynamic vibration absorber model is different, spare part is more.
Content of the invention
The purpose of this utility model is: provide a kind of highly versatile, rational in infrastructure, technology difficulty is little, mounting means is simple,
Frequency adjustment easily pipeline dynamic vibration absorber, can require to different medium pipe-line system, pipeline layout and vibration and noise reducing
Play vibrational line spectrum peak inhibitory action.
The technical solution of the utility model is: a kind of pipeline dynamic vibration absorber of absorbing frequency-adjustable, and it includes: guide rod,
Split type clip, support, rubber elastic layer, frequency modulation gauge block, pad and nut；
Guide rod is with externally threaded column type hollow bar, and damping material is encapsulated in interior by its two ends by Screw-thread sealing plug；
Split type clip is divided into two semicircular ring, is installed by the double nut locking mechanism being made up of two nuts and pad
On pipeline；
Support is welded on split type clip；Carriage center goes out to have the manhole of support guide rod；
Frequency modulation gauge block is cylindrical-shaped structure, and there is the through hole passing through for guide rod at center；More than one piece frequency modulation gauge block conduct
One group, form shock absorber elements；
Shock absorber elements are locked on guide rod by double nut locking mechanism；Two are welded standoff split type clip and will carry
The guide rod having shock absorber elements is fixed on pipeline；Rubber elastic layer liner is between split type clip and pipeline.
This utility model has shock sucking function, and principle is as follows:
When being located at the guide rod central authorities between two split type clips when one group of frequency modulation gauge block, ignore guide rod quality, can have
Simplify frequency equationWhen outside one group of frequency modulation gauge block being located at two split type clips, ignore guide rod
Quality, can have simplification frequency equation(e is elasticity modulus of materials, and i is guide rod cross sectional moment of inertia, and m is frequency modulation
The quality of mass group, l is the distance of mass centroid distance guide rod fixing end).May know that from above-mentioned two equation and want to change
The frequency becoming bump leveller mainly can be by adjusting spacing l between quality m and clip.When material is selected, parameter e is not
Become；When guide rod is constant, parameter i is constant；After initial adjustment mass determines, total quality is fixed, and quality m is constant；By even
Lever system adjusts the coverage l of guide rod and frequency modulation gauge block between clip and, apart from the distance of split type clip, can change frequency
Rate.
When two groups of identical frequency modulation gauge blocks are evenly arranged on the guide rod between two split type clips, ignore guide rod
Quality, can have simplification frequency equation(e is elasticity modulus of materials, and i is to lead
Bar cross sectional moment of inertia, m is the quality of frequency modulation gauge block group, and l is the distance of mass centroid distance guide rod fixing end).Therefore, manage
Road have more than one frequency need to carry out absorbing control when, frequency modulation gauge block can have multigroup, to provide multiple FREQUENCY CONTROL functions, many
The frequency modulation mass block element quantity of group frequency modulation gauge block can be the same or different.
The utility model has the advantages that: (1) structure is simple, reliable and stable, easy to adjust, Non-energy-consumption and size is little is easy to
Install, guide rod, frequency modulation gauge block, rubber elastic layer and clip etc., highly versatile can be chosen according to the actual requirements, can apply
Various outer diameter, the pipeline of different interior media；Acting frequency adjustable is strong, can carry out on-line tuning, be blocked by adjustment
Spacing between hoop, the position of mass and quantity are realizing the adjustment of this dynamic vibration absorber acting frequency it is not necessary to enter line pipe
The dismounting of road dynamic vibration absorber structure, cutting, need not shut down, stop work, not lost time.
(2) moment needing when adjusting is less, easy to operate；Frequency modulation can be carried out according to pipeline vibration FREQUENCY CONTROL demand
The different combination of mass, effective absorbing frequency can have multiple.
Brief description
Accompanying drawing 1 is main sectional view of the present utility model；
Accompanying drawing 2 is the side view of Fig. 1；
Accompanying drawing 3,4,5,6,7 is that multiple frequency modulation gauge blocks combine scheme of installation.
Specific embodiment
Referring to accompanying drawing, a kind of pipeline dynamic vibration absorber of absorbing frequency-adjustable, it includes: guide rod 1, split type clip 2,
Frame 3, rubber elastic layer 4, frequency modulation gauge block 5, pad 6 and nut 7；
Guide rod 1 is cylindric external screw thread hollow bar, and damping material is encapsulated in interior by two ends by Screw-thread sealing plug；
Split type clip 2 is divided into upper and lower two semicircular ring, by forming double nut locking knot by two nuts 7 and pad 6
Structure is arranged on pipeline 9；
Support 3 is square structure, is welded on clip 2；Support 3 has the manhole of support guide rod 1, and its diameter is bigger
External diameter in guide rod 1；
Rubber elastic layer 4 liner is between split type clip 2 and pipeline 9；
Frequency modulation gauge block 5 is cylindrical-shaped structure, and there is the through hole passing through for guide rod 1 at center, and its diameter is slightly larger than the outer of guide rod 1
Footpath；Frequency modulation gauge block 5 is made up of one group one or more, forms shock absorber elements；
Two nuts 7 and pad 6 composition double nut locking mechanism, one or more frequency modulation gauge blocks 5 are locked at guide rod 1
On；Two clips 2 being welded with support 3, gasket rubber elastic layer 4, and by guide rod 1 structure with some frequency modulation gauge blocks 5
It is fixed on pipeline 9.
In such scheme, had multigroup by the shock absorber elements that frequency modulation gauge block 5 is formed, shock absorber elements can be located at two supports 3
Between or outside.
A kind of using method of adjustable pipeline dynamic vibration absorber, comprises the following steps:
Characteristic and design requirement according to system pipeline select the suitable guide rod of different-stiffness, different filling damping, length
1；
Limit and design result according to real space, the installation site of two supports 3 of labelling and frequency modulation mass on guide rod 1
The installation site of block 5；
A. according to design result, according to the position of b step labelling, guide rod 1 is set with by one or several frequency modulation mass
The shock absorber elements that block 5 is formed, and be fixed with pad 6 and nut 7；
B. two supports 3 are respectively welded and are fixed on two split type clips 2；
The installation site of two split type clips 2, c. according to real space position and design result, is determined on pipeline 9,
And make marks；
D. installed frequency modulation gauge block 5 guide rod 1 pass through two supports 3 on through hole, according to the position of b step labelling
Put, be fixed on support 3 using pad 6 and nut 7；
E. the position according to step c labelling, by rubber elastic layer 4 be rolled in pipeline 9 cylindrical on, install with guide rod 1 point
Rubber elastic layer 4 is fastened by body formula clip 2；
F. position on guide rod 1 for the distance and shock absorber elements of two split type clips 2 of adjustment, to realize flexible arrangement
And the regulation to acting frequency.
Claims (3)
1. a kind of pipeline dynamic vibration absorber of absorbing frequency-adjustable, is characterized in that: it includes: guide rod (1), split type clip (2),
Support (3), rubber elastic layer (4), frequency modulation gauge block (5), pad (6) and nut (7)；
Described guide rod (1) is with externally threaded column type hollow bar, and damping material is encapsulated in interior by its two ends by Screw-thread sealing plug；
Described split type clip (2) is divided into two semicircular ring, by be made up of two described nuts (7) and described pad (6)
Double nut locking mechanism is arranged on pipeline (9)；
Described support (3) is welded on described split type clip (2)；Described support (3) center goes out to have the described guide rod of support (1)
Manhole；
Described frequency modulation gauge block (5) is cylindrical-shaped structure, and there is the through hole passing through for described guide rod (1) at center；One piece the above
Frequency modulation gauge block (5), as one group, forms shock absorber elements；
Described shock absorber elements are locked on described guide rod (1) by described double nut locking mechanism；Two are welded with described support
(3) guide rod (1) with described shock absorber elements is fixed on pipeline (9) described split type clip (2)；Described caoutchouc elasticity
Layer (4) liner is between described split type clip (2) and described pipeline (9).
2. a kind of pipeline dynamic vibration absorber of absorbing frequency-adjustable as claimed in claim 1, is characterized in that: by described frequency modulation mass
The number of the described shock absorber elements that block (5) is formed is more than one.
3. a kind of pipeline dynamic vibration absorber of absorbing frequency-adjustable as claimed in claim 1 or 2, is characterized in that: described absorbing structure
Part be located at two described supports (3) between outside or described support (3) between, outside all have.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620718633.0U CN205919055U (en) | 2016-07-08 | 2016-07-08 | Inhale tunable frequency's that shakes pipeline dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620718633.0U CN205919055U (en) | 2016-07-08 | 2016-07-08 | Inhale tunable frequency's that shakes pipeline dynamic vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205919055U true CN205919055U (en) | 2017-02-01 |
Family
ID=57874682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620718633.0U Expired - Fee Related CN205919055U (en) | 2016-07-08 | 2016-07-08 | Inhale tunable frequency's that shakes pipeline dynamic vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205919055U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015817A (en) * | 2016-07-08 | 2016-10-12 | 中国船舶重工集团公司第七〇九研究所 | Pipeline power vibration absorber with adjustable vibration absorbing frequency |
| CN109723747A (en) * | 2019-01-30 | 2019-05-07 | 浙江大学 | A kind of dynamic vibration absorber and its vibration absorption method based on coupling rotating beam |
| CN110067147A (en) * | 2018-01-22 | 2019-07-30 | 维美德技术有限公司 | Damper and the arrangement in fiber web machine |
| CN112833273A (en) * | 2021-01-19 | 2021-05-25 | 西南石油大学 | Resonance control device for buffer tank of compressor |
| WO2024052367A1 (en) * | 2022-09-07 | 2024-03-14 | Robert Bosch Gmbh | Vibration damping mass for attachment to at least one vibrating element |
-
2016
- 2016-07-08 CN CN201620718633.0U patent/CN205919055U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015817A (en) * | 2016-07-08 | 2016-10-12 | 中国船舶重工集团公司第七〇九研究所 | Pipeline power vibration absorber with adjustable vibration absorbing frequency |
| CN110067147A (en) * | 2018-01-22 | 2019-07-30 | 维美德技术有限公司 | Damper and the arrangement in fiber web machine |
| CN109723747A (en) * | 2019-01-30 | 2019-05-07 | 浙江大学 | A kind of dynamic vibration absorber and its vibration absorption method based on coupling rotating beam |
| CN109723747B (en) * | 2019-01-30 | 2023-09-01 | 浙江大学 | Dynamic vibration absorber based on coupling rotating beam and vibration absorbing method thereof |
| CN112833273A (en) * | 2021-01-19 | 2021-05-25 | 西南石油大学 | Resonance control device for buffer tank of compressor |
| CN112833273B (en) * | 2021-01-19 | 2022-03-29 | 中石化中原石油工程设计有限公司 | Resonance control device for buffer tank of compressor |
| WO2024052367A1 (en) * | 2022-09-07 | 2024-03-14 | Robert Bosch Gmbh | Vibration damping mass for attachment to at least one vibrating element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170201 Termination date: 20190708 |