CN107448687A - A kind of three-dimensional double frequency pipeline shock-absorbing means - Google Patents
A kind of three-dimensional double frequency pipeline shock-absorbing means Download PDFInfo
- Publication number
- CN107448687A CN107448687A CN201710801428.XA CN201710801428A CN107448687A CN 107448687 A CN107448687 A CN 107448687A CN 201710801428 A CN201710801428 A CN 201710801428A CN 107448687 A CN107448687 A CN 107448687A
- Authority
- CN
- China
- Prior art keywords
- frequency
- double frequency
- pipeline
- cantilever beam
- integrated base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
- F16L3/133—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and hanging from a pendant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/14—Hangers in the form of bands or chains
Abstract
The invention discloses a kind of three-dimensional double frequency pipeline shock-absorbing means, belong to Control Technique of Vibration and Noise field.The device includes integrated base, clip and three double frequency bump levellers；Double frequency bump leveller includes rectangular cantilever beam and two masses, and described two masses are removably affixed by bolt to be connected on rectangular cantilever beam；Three double frequency bump levellers are fixedly connected with integrated base, and integrated base is fixedly connected with the top of clip, and clip is fixedly connected with pipeline；The axis of the bolt of fixed mass block corresponds to the axial direction of pipeline, radial direction and vertical respectively on three double frequency bump levellers.Adjust position of double frequency two masses of bump leveller on rectangular cantilever beam, make the frequency respective shaft frequency of its first-order modal, the frequency of second-order modal corresponds to leaf frequency, so as to give vibrational energy " shunting " of the controlled pipeline structure at above-mentioned two frequency to double frequency bump leveller, the vibrational energy of pipeline structure is reduced, realizes the absorbing to axle frequency and leaf frequency.
Description
Technical field
The invention belongs to Control Technique of Vibration and Noise field, and in particular to a kind of three-dimensional double frequency pipeline shock-absorbing means.
Background technology
The vibration of pipe-line system is from the water pump being attached thereto, and caused vibration can pass through pipeline structure to water pump in the running
Outwards transmit, have a strong impact on the normal operation of pipeline connection equipment.Wherein, vibrational excitation frequency is mainly the operating shaft frequency of water pump
With leaf frequently, and vibration transmission has three directions：Pipeline is axial, radially and vertical.Although the rubber-type pipeline branch generally used
The passive damping technology such as frame realizes effective suppression to the vibration of pipe-line system radio-frequency component, for this axle in low-frequency range
Frequency and leaf frequency vibration inhibition but unobvious.Therefore, suppress for the axle frequency and leaf frequency vibration of pipe-line system, research has three
To, double frequency rejection ability low frequency pipeline vibration absorber by as the inevitable research direction in this field.
The content of the invention
In view of this, the invention provides a kind of three-dimensional double frequency pipeline shock-absorbing means, can realize to the axis of orientation of pipeline three
The vibration control of frequency and leaf frequency.
A kind of three-dimensional double frequency pipeline shock-absorbing means, the device include integrated base, clip and three double frequency bump levellers；It is described double
Frequency bump leveller includes rectangular cantilever beam and two masses, and described two masses are removably affixed by bolt is connected to square
On shape cantilever beam；Three double frequency bump levellers are fixedly connected with integrated base, and integrated base is fixedly connected with the top of clip, described
Clip is fixedly connected with pipeline；The axis of the bolt of fixed mass block corresponds to the axle of pipeline respectively on three double frequency bump levellers
To, radially and vertical, position of adjustment double frequency two masses of bump leveller on rectangular cantilever beam, make the frequency of its first-order modal
Respective shaft frequency, the frequency of second-order modal correspond to leaf frequency.
Further, the rectangular cantilever beam is a rectangular slat type structure, and there is bar-shaped trough centre, and end has two to lead to
Hole, connected by the installation groove of two screws and integrated base, and fixed after being compressed with pressing plate.
Further, the integrated base is the cube structure of one jiao of a missing, has a through hole in the middle part of the structure, profit
With a bolt by the through hole by integrated base and clamp connection；Integrated holder structure has three sides to be provided with groove, recess width
Identical with the rectangular cantilever beam width of double frequency bump leveller, two screwed holes are arranged at the bottom of groove, for the square with double frequency bump leveller
Shape cantilever beam connects.
Beneficial effect：
1st, the present invention is arranged on the outside of pipeline, without transforming pipeline structure, removes and installs simplicity, before having wide application
Scape.
2nd, the present invention has the vibration suppression ability to three directions of pipeline, adapts to the suppression of pipeline all directions complex vibration
Operating mode.
3rd, the present invention has the adjustable shock sucking function of double frequency, by adjusting the location matches axle frequency and leaf frequency of two masses,
The absorbing to two frequencies is realized, it is simple and reliable without externally fed.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the overall structure of the explosion figure of the present invention；
Fig. 3 is the Structure explosion diagram of double frequency bump leveller；
Fig. 4 is the structural representation of integrated base；
Fig. 5 is installation and course of work schematic diagram of the present invention on pipeline；
Fig. 6 is the schematic diagram of double frequency absorbing of the present invention；
Wherein, 1- integrated bases, 2- double frequencies bump leveller, 3- clips, 4- rectangular cantilever beams, 5- masses, 6- pipelines.
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The invention provides a kind of three-dimensional double frequency pipeline shock-absorbing means
Three-dimensional double frequency pipeline shock-absorbing means, including three double frequency bump levellers, 2, cylindrical clips 3 and an integrated base
1.Wherein, three double frequency bump levellers 2 are arranged and are fixed on integrated base with orthogonal manner, mass 5 in three double frequency bump levellers 2
On bolt axis direction be respectively directed to the axial direction (X to) of pipeline 6, vertical (Z-direction) and radially (Y-direction).
As shown in Figures 2 and 3, described double frequency bump leveller 2 is a rectangular cantilever girder construction for having two lumped masses,
It is made up of a rectangular cantilever beam 4 and two masses 5.Wherein, rectangular cantilever beam 4 is a rectangular slat type structure, middle
There is bar-shaped trough, end there are two through holes, is connected by two screws with the installation groove of integrated base 1, and consolidates after being compressed with pressing plate
It is fixed.As shown in Figure 3, each mass 5 is made up of upper and lower two rectangular configurations, and there is through hole centre, passes through one group of bolt and spiral shell
Mother is connected with the bar-shaped trough of rectangular cantilever beam 4.Two masses 5 can slide along the bar-shaped trough of rectangular cantilever beam 4, and pass through bolt
And nut check.
Clip 3 is a cylindrical shell structure, sees Fig. 2, is made up of upper and lower two semicolumn shells.The inner side of two semicolumn shells
It is close on the outside of the tube wall of pipeline 6, respectively there is a through hole on both sides, and bolt passes through the through hole, and relies on nut check, ensure cylinder card
Hoop can the clamping on pipeline.There is installation base at the top of upper half cylindrical shell, have screwed hole in the middle part of boss, the screwed hole is used for integrating
Seat 1 connects.
As shown in Figure 4, integrated base 1 is the cube structure of one jiao of a missing, has a through hole in the middle part of the structure, profit
Integrated base 1 is connected with clip 3 by the through hole with a bolt.The structure of integrated base 1 has three sides to be provided with groove, and groove is wide
Degree it is identical with the width of rectangular cantilever beam 4 of double frequency bump leveller 2, two screwed holes are arranged at the bottom of groove, for double frequency bump leveller 2
Rectangular cantilever beam 4 connect.
Wherein, double frequency bump leveller 2 is respectively fixedly connected by two screws and a pressing plate with the groove of integrated base 1.
Wherein, the inner side of clip 3 is close on the outside of the tube wall of pipeline 6, and both sides are respectively locked by 1 group of bolt and nut.
The present invention the course of work be：As shown in Figure 5, the clip 3 of the present invention is clamped on pipeline 6 first, made double
Bolt axis direction on the mass 5 of frequency bump leveller 2 corresponds to pipeline axially (X to), vertical (Z-direction) and radial direction (Y-direction) respectively.
Fig. 6 is seen, according to the axle of pump housing frequency and the frequent rate of leaf, position of adjustment double frequency 2 two masses 5 of bump leveller on rectangular cantilever beam 4
Put l1And l2, make the frequency respective shaft frequency of its first-order modal, the frequency of second-order modal correspond to leaf frequently, causes double frequency bump leveller 2 in axle
Frequency and Ye Pin positions are resonated, double so as to which vibrational energy " shunting " of the controlled pipeline structure at above-mentioned two frequency be given
Frequency bump leveller 2, the vibrational energy of pipeline structure is reduced, realize the absorbing to axle frequency and leaf frequency.
The present invention has axial to pipeline, vertical and radially comprehensive vibration suppression ability, and can suppress simultaneously
The axle frequency and leaf frequency vibration of pipeline.Its single double frequency bump leveller has two masses, and can continuously change the position of mass
Put, thus it is possible to vary the preceding two ranks resonance mode frequency of double frequency bump leveller, axle frequency and leaf frequency are matched with this.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of three-dimensional double frequency pipeline shock-absorbing means, it is characterised in that the device includes integrated base, clip and three double frequency absorbings
Device；The double frequency bump leveller includes rectangular cantilever beam and two masses, and described two masses are movably solid by bolt
Surely it is connected on rectangular cantilever beam；Three double frequency bump levellers are fixedly connected with integrated base, and the top of integrated base and clip is consolidated
Fixed connection, the clip are fixedly connected with pipeline；The axis difference of the bolt of fixed mass block on three double frequency bump levellers
The axial direction of corresponding pipeline, radial direction and vertical, position of adjustment double frequency two masses of bump leveller on rectangular cantilever beam, make one
The frequency respective shaft frequency of rank mode, the frequency of second-order modal correspond to leaf frequency.
2. three-dimensional double frequency pipeline shock-absorbing means as claimed in claim 1, it is characterised in that the rectangular cantilever beam is a square
There is bar-shaped trough shape long strip type structure, centre, and there are two through holes end, are connected by the installation groove of two screws and integrated base,
It is and fixed after being compressed with pressing plate.
3. three-dimensional double frequency pipeline shock-absorbing means as claimed in claim 1, it is characterised in that the integrated base is a missing one
The cube structure at angle, there is a through hole in the middle part of the structure, using a bolt by the through hole by integrated base and clamp connection；
Integrated holder structure has three sides to be provided with groove, and recess width is identical with the rectangular cantilever beam width of double frequency bump leveller, groove
Two screwed holes are arranged at bottom, for being connected with the rectangular cantilever beam of double frequency bump leveller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801428.XA CN107448687A (en) | 2017-09-07 | 2017-09-07 | A kind of three-dimensional double frequency pipeline shock-absorbing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801428.XA CN107448687A (en) | 2017-09-07 | 2017-09-07 | A kind of three-dimensional double frequency pipeline shock-absorbing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107448687A true CN107448687A (en) | 2017-12-08 |
Family
ID=60495860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710801428.XA Pending CN107448687A (en) | 2017-09-07 | 2017-09-07 | A kind of three-dimensional double frequency pipeline shock-absorbing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448687A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550514A (en) * | 2020-04-07 | 2020-08-18 | 株洲时代新材料科技股份有限公司 | Multi-frequency dynamic vibration absorption method and multi-frequency dynamic vibration absorber |
| CN114838233A (en) * | 2022-05-12 | 2022-08-02 | 西北工业大学 | Annular dynamic vibration absorption device applied to high-pressure pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1531372A1 (en) * | 2003-11-17 | 2005-05-18 | Eurocopter | Method to tune a vibration damping device |
| US20080308368A1 (en) * | 2005-02-02 | 2008-12-18 | A2 Acoustics Ab | Device for Reducing Vibrations and Sounds |
| CN204201363U (en) * | 2014-10-21 | 2015-03-11 | 南京航空航天大学 | Frequency-adjustable formula pipeline dynamic vibration absorber |
| 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 |
| CN106257123A (en) * | 2016-08-01 | 2016-12-28 | 北京工业大学 | A kind of magnetorheological pipeline dual dynamic damping absorber |
| CN207333963U (en) * | 2017-09-07 | 2018-05-08 | 中国船舶重工集团公司第七一九研究所 | A kind of three-dimensional double frequency pipeline shock-absorbing means |
-
2017
- 2017-09-07 CN CN201710801428.XA patent/CN107448687A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1531372A1 (en) * | 2003-11-17 | 2005-05-18 | Eurocopter | Method to tune a vibration damping device |
| US20080308368A1 (en) * | 2005-02-02 | 2008-12-18 | A2 Acoustics Ab | Device for Reducing Vibrations and Sounds |
| CN204201363U (en) * | 2014-10-21 | 2015-03-11 | 南京航空航天大学 | Frequency-adjustable formula pipeline dynamic vibration absorber |
| 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 |
| CN106257123A (en) * | 2016-08-01 | 2016-12-28 | 北京工业大学 | A kind of magnetorheological pipeline dual dynamic damping absorber |
| CN207333963U (en) * | 2017-09-07 | 2018-05-08 | 中国船舶重工集团公司第七一九研究所 | A kind of three-dimensional double frequency pipeline shock-absorbing means |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550514A (en) * | 2020-04-07 | 2020-08-18 | 株洲时代新材料科技股份有限公司 | Multi-frequency dynamic vibration absorption method and multi-frequency dynamic vibration absorber |
| CN111550514B (en) * | 2020-04-07 | 2022-03-15 | 株洲时代新材料科技股份有限公司 | Multi-frequency dynamic vibration absorption method and multi-frequency dynamic vibration absorber |
| CN114838233A (en) * | 2022-05-12 | 2022-08-02 | 西北工业大学 | Annular dynamic vibration absorption device applied to high-pressure pipeline |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171208 |