CN204785084U - Clamp that shakes is inhaled to direction adjustable pipeline - Google Patents
Clamp that shakes is inhaled to direction adjustable pipeline Download PDFInfo
- Publication number
- CN204785084U CN204785084U CN201520489132.5U CN201520489132U CN204785084U CN 204785084 U CN204785084 U CN 204785084U CN 201520489132 U CN201520489132 U CN 201520489132U CN 204785084 U CN204785084 U CN 204785084U
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- CN
- China
- Prior art keywords
- clamp ring
- pipeline
- absorbing
- lower clamping
- mass
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- Withdrawn - After Issue
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a clamp that shakes is inhaled to direction adjustable pipeline belongs to vibration noise control technical field, include: the hoop component with inhale the subassembly that shakes, the hoop component includes: go up clamp ring, rubber pad, lower clamp ring and switching piece, go up clamp ring and lower clamp ring to the outer periphery of carried forward suit at the rubber pad, two switching pieces are located respectively in the middle of clamp ring and the lower clamp ring, the both ends of every switching piece are connected with last clamp ring, lower clamp ring respectively, it includes to inhale the subassembly that shakes: cantilever bar, quality component end block and quality component intermediate mass, quality component intermediate mass passes through threaded connection with cantilever bar, two quality component end block pass two terminal surfaces of cantilever bar after -fixing at quality component intermediate mass respectively, it fixes in the screw hole of the switching piece of hoop component through cantilever bar respectively to inhale the subassembly that shakes, the clamp compact structure that shakes inhales, inhales that to shake the direction adjustable to this pipeline, can effectively restrain naval vessel pipeline line spectrum vibration, and the installation space demand is little, and the dismouting is maintained conveniently.
Description
Technical field
The utility model belongs to Control Technique of Vibration and Noise field, is specifically related to the pipeline absorbing clip that a kind of direction is adjustable.
Background technique
Warship equipment on board-pipeline is one of important channel of vibration passing.Both comprise the prominent features line spectrum caused by equipment operation in the vibration of pipeline transmission, there is again the vibration that the factors such as stream swashs cause.Reduce the vibration that these pipelines transmit, significant for the Stealth Fighter improving naval vessel.
Wideband for pipeline vibrates, and can effectively be administered by installing vibration isolation support; Low frequency spectrum lines for pipeline is vibrated, and does not also have simple and effective means obviously to reduce at present.Therefore, a kind of pipeline clamp simultaneously with shock sucking function is objectively needed.
Model utility content
In view of this, the purpose of this utility model is to provide the adjustable pipeline absorbing clip in a kind of direction, and this pipeline absorbing yoke configurations is compact, absorbing direction is adjustable, and effectively can suppress naval vessel pipeline line spectrum vibration, installing space demand is little, and dismounting is easy to maintenance.
The utility model is achieved through the following technical solutions:
The pipeline absorbing clip that direction is adjustable, comprising: hoop component and absorbing assembly;
Described hoop component comprises: upper clamp ring, rubber pad, lower clamping, adjustment cushion block and transfer block;
The two ends of described upper clamp ring and lower clamping are equipped with connecting plate;
Described transfer block is provided with central through bore and through tapped hole vertical with central through bore, and the number of described tapped hole is two or more;
The outer peripheral surface of rubber pad is sleeved on after upper clamp ring and lower clamping dock; Two transfer blocks lay respectively in the middle of the connecting plate of clamp ring and lower clamping; The two ends of each transfer block are connected with the connecting plate of upper clamp ring, the connecting plate of lower clamping respectively;
Described absorbing assembly comprises: cantilever lever, mass elements end block and mass elements intermediate mass;
Described cantilever lever is provided with outside thread;
Described mass elements end block is the cylinder with ladder-type axial hole;
Described mass elements intermediate mass is the cylinder with axial threaded hole;
Mass elements intermediate mass and cantilever lever are threaded connection, and axial limiting is carried out by nut in the two ends of mass elements intermediate mass; Two end faces of mass elements intermediate mass are fixed by screws in after two mass elements end blocks are each passed through cantilever lever;
Its annexation is as follows: more than one absorbing assembly is fixed in the tapped hole of each transfer block of hoop component respectively by cantilever lever, and is fixed cantilever lever by nut.
Further, described upper clamp ring and lower clamping are semicircular ring, form globoidal structure after docking; Described rubber pad is annulus.
Further, the connecting plate of upper clamp ring, transfer block are connected by bolt and nut with the connecting plate of lower clamping; Wherein, bolt is through the central through bore of transfer block.
Further, transfer block is fixed with adjustment cushion block with the joint of upper clamp ring and lower clamping respectively.
Further, the particular location of described mass elements intermediate mass on cantilever lever is determined according to the weight of absorbing frequency and mass elements.
Further, each transfer block is provided with the absorbing assembly of same number.
Working principle: first, according to pipeline external diameter, designs clamp ring, rubber pad, lower clamping; Need the frequency of absorbing, tuning range and shock attenuation result according to pipeline, calculate rigidity and the quality of absorbing element, come designing quality element two end block, mass elements intermediate mass, cantilever lever according to this;
Secondly, the position of absorbing is needed according to pipeline, by pipeline absorbing clip connected on pipeline;
Again, need absorbing direction according to pipeline, adjustment transfer block direction, thus the direction of adjustment absorbing assembly;
Then, fine setting adjustment is arranged on absorbing clip frequency in pipeline, makes itself and pipeline need the frequency of absorbing consistent;
Finally, fixing relevant position bolt, nut, be fixed on pipeline absorbing clip on pipeline.
Absorbing principle of the present utility model is as follows: the utility model utilizes dynamic absorber principle, when the natural frequency of motivation of adjustment bump leveller is consistent with principal oscillation system incentive frequency, significantly can suppress the vibration of principal oscillation system incentive frequency.According to mechanical model principal oscillation system adding a undamped dynamic vibration absorber, the displacement of principal oscillation system as shown in the formula:
(wherein, M, K are quality and the spring rate of principal oscillation system, and m, k are quality and the spring rate of dynamic vibration absorber, X
1for the displacement of principal oscillation system, F
1sin ω t is the exciting force in principal oscillation system), when the frequency of dynamic vibration absorber
when equaling principal oscillation system incentive frequencies omega, molecule is, i.e. principal oscillation system displacement is.Obviously, for specific exciting force frequency, dynamic vibration absorber has good inhibition.
Frequency modulation principle is as follows: simplify frequency equation according to swing link type dynamic vibration absorber radial direction
(E is elasticity modulus of materials, and I is guide rod cross sectional moment of inertia, and m is mass block quality, and L is the distance of mass block centroid distance guide rod fixed end), when material is selected, parameter E is constant; When guide rod is constant, parameter I is constant; Change quality m, the distance L of quality of regulation block and guide rod fixed end by changing frequency modulation gauge block number, thus change frequency, because the pitch of guide rod screw thread is very little, the step-length that parameter L can be very little regulates, and then realizes radial accurately frequency modulation.
Beneficial effect: (1) upper clamp ring of the present utility model and lower clamping are semicircular ring, this structure can install clip when not detaching pipelines, needs any position that can be arranged on pipeline according to absorbing; Form globoidal structure after upper clamp ring and lower clamping docking, this structure can be fixed on pipeline to greatest extent.
(2) transfer block side of the present utility model all has tapped hole, can according to adjustment transfer block direction, pipeline vibration direction; Described adjustment cushion block can prevent the relative sliding of transfer block, can also adjust the relative distance of clamp ring and lower clamping.
(3) the utility model is by changing mass elements end block and the position of mass elements intermediate mass in overhang, can adjust the absorbing frequency of absorbing assembly.
(4) the utility model can reduce by 1 to 2 low frequency spectrum lines vibrations of pipeline, absorbing position and direction can adjust arbitrarily as required, easy accessibility, do not need detaching pipelines, compact structure, reliability are high, environmental suitability is strong, can effectively suppress the line spectrum of naval vessel pipeline to vibrate.
(5) position of absorbing assembly of the present utility model in cantilever lever can stepless changing, and can make absorbing element frequency and line spectral frequencies exact matching, have suction anti-vibration performance, absorbing frequency is accurately adjustable.
(6) absorbing direction of the present utility model as required can accurate adjustment; According to absorbing theory, when absorbing direction is consistent with direction of vibration, shock attenuation result is best; The direction of the utility model absorbing component orientation and transfer block can adjust arbitrarily according to the direction that pipeline vibration is maximum.
(7) the utility model mounting point in pipeline can adjust arbitrarily; According to pipeline vibration size and installing space, the mounting point of the utility model in pipeline does not have particular/special requirement, can be arranged in the middle of pipeline, can be arranged in pipe-support position yet.
(8) the utility model structure closely, is particularly suitable for installing space narrow and small on naval vessel; Pipeline does not need dismounting to install, easy to maintenance, and high-low temperature resistant, greasy dirt, corrosion, environmental suitability is strong.
Accompanying drawing explanation
Accompanying drawing 1 is that the axle of pipeline absorbing clip surveys view;
Accompanying drawing 2 is that the axle of the hoop component of pipeline absorbing clip surveys view;
Accompanying drawing 3 is the front view of the absorbing assembly of pipeline absorbing clip;
Accompanying drawing 4 ~ 5 is the front view of the transfer block of pipeline absorbing clip;
Accompanying drawing 6 is the side view that pipeline absorbing clip is arranged on vibration damper;
Wherein: the upper clamp ring of 1-, 2-rubber pad, 3-lower clamping, 4-construction bolt, 5-packing ring, 6-adjusts cushion block, 7-transfer block, 8-nut, 9-cantilever lever, and 10-double cog loosens packing ring, 11-round nut, 12-hexagon socket countersunk flat cap head screw, 13-mass elements end block, 14-mass elements intermediate mass.
Embodiment
To develop simultaneously embodiment below in conjunction with accompanying drawing, the utility model is described in detail.
Embodiment 1:
The utility model provides the adjustable pipeline absorbing clip in a kind of direction, see accompanying drawing 1, comprising: hoop component and absorbing assembly;
See accompanying drawing 2, described hoop component comprises: upper clamp ring 1, rubber pad 2, lower clamping 3, construction bolt 4, packing ring 5, adjustment cushion block 6, transfer block 7 and nut 8;
Described upper clamp ring 1 and lower clamping 3 are semicircular ring, and the two ends of semicircular ring are equipped with connecting plate;
Described rubber pad 2 is annulus;
See accompanying drawing 4,5, described transfer block 7 is provided with central through bore and through tapped hole vertical with central through bore, and the number of described tapped hole is two or more;
Upper clamp ring 1 and lower clamping 3 dock rear formation globoidal structure and are sleeved on the outer peripheral surface of rubber pad 2; Two transfer blocks 7 lay respectively in the middle of the connecting plate of clamp ring 1 and lower clamping 3; The connecting plate of the upper clamp ring 1 often held, transfer block 7 are fixedly connected with the connecting plate of lower clamping 3 by construction bolt 4, packing ring 5 and nut 8 successively, wherein, construction bolt 4 is through the central through bore of transfer block 7, and transfer block 7 is fixed with the joint of upper clamp ring 1 and lower clamping 3 respectively and adjusts cushion block 6;
See accompanying drawing 3, described absorbing assembly comprises: cantilever lever 9, double cog loosen packing ring 10, round nut 11, hexagon socket countersunk flat cap head screw 12, mass elements end block 13 and mass elements intermediate mass 14;
Described cantilever lever 9 is provided with outside thread;
Described mass elements end block 13 is the cylinder with ladder-type axial hole;
Described mass elements intermediate mass 14 is the cylinder with axial threaded hole;
Mass elements intermediate mass 14 and cantilever lever 9 are threaded connection, and the particular location of mass elements intermediate mass 14 on cantilever lever 9 is determined according to the weight of absorbing frequency and mass elements; The two ends of mass elements intermediate mass 14 loosen packing ring 10 by double cog and round nut 11 pairs of mass elements intermediate mass 14 carry out axial limiting; Be fixed on two end faces of mass elements intermediate mass 14 by hexagon socket countersunk flat cap head screw 12 after two mass elements end blocks 13 are each passed through cantilever lever 9;
Its annexation is as follows: four absorbing assemblies are fixed in the tapped hole of transfer block 7 of hoop component respectively by cantilever lever 9, and are fixed cantilever lever 9 by nut; Wherein, each transfer block 7 is provided with two absorbing assemblies.
Working principle: first, according to pipeline external diameter, designs clamp ring 1, rubber pad 2, lower clamping 3; Need the frequency of absorbing, tuning range and shock attenuation result according to pipeline, calculate rigidity and the quality of absorbing element, come designing quality element two end block 13, mass elements intermediate mass 14, cantilever lever 9 according to this;
Secondly, the position of absorbing is needed according to pipeline, by pipeline absorbing clip connected on pipeline;
Again, need absorbing direction according to pipeline, adjustment transfer block direction, thus the direction of adjustment absorbing assembly;
Then, fine setting adjustment is arranged on absorbing clip frequency in pipeline, makes itself and pipeline need the frequency of absorbing consistent;
Finally, fixing relevant position bolt, nut, be fixed on pipeline absorbing clip on pipeline.
Absorbing principle of the present utility model is as follows: the utility model utilizes dynamic absorber principle, when the natural frequency of motivation of adjustment bump leveller is consistent with principal oscillation system incentive frequency, significantly can suppress the vibration of principal oscillation system incentive frequency.According to mechanical model principal oscillation system adding a undamped dynamic vibration absorber, the displacement of principal oscillation system as shown in the formula:
(wherein, M, K are quality and the spring rate of principal oscillation system, and m, k are quality and the spring rate of dynamic vibration absorber, X
1for the displacement of principal oscillation system, F
1sin ω t is the exciting force in principal oscillation system), when the frequency of dynamic vibration absorber
when equaling principal oscillation system incentive frequencies omega, molecule is 0, i.e. principal oscillation system displacement is 0.Obviously, for specific exciting force frequency, dynamic vibration absorber has good inhibition.
Frequency modulation principle is as follows: simplify frequency equation according to swing link type dynamic vibration absorber radial direction
(E is elasticity modulus of materials, and I is guide rod cross sectional moment of inertia, and m is mass block quality, and L is the distance of mass block centroid distance guide rod fixed end), when material is selected, parameter E is constant; When guide rod is constant, parameter I is constant; Change quality m, the distance L of quality of regulation block and guide rod fixed end by changing frequency modulation gauge block number, thus change frequency, because the pitch of guide rod screw thread is very little, the step-length that parameter L can be very little regulates, and then realizes radial accurately frequency modulation.
Embodiment 2:
See accompanying drawing 6, on the basis of embodiment 1, the connecting plate at the upper clamp ring 1 of hoop component and lower clamping 3 two ends is fixed on rack-mount.
Embodiment 3:
On the basis of embodiment 1 or 2, absorbing component design can be become two kinds of frequencies, thus pipeline absorbing clip can be made to have the function of simultaneously cutting down two line spectrums.
Embodiment 4:
On the basis of embodiment 1 or 2, transfer block is installed more absorber block, improve shock attenuation result.
In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the pipeline absorbing clip that direction is adjustable, is characterized in that, comprising: hoop component and absorbing assembly;
Described hoop component comprises: upper clamp ring (1), rubber pad (2), lower clamping (3), adjustment cushion block (6) and transfer block (7);
The two ends of described upper clamp ring (1) and lower clamping (3) are equipped with connecting plate;
Described transfer block (7) is provided with central through bore and through tapped hole vertical with central through bore, and the number of described tapped hole is two or more;
The outer peripheral surface of rubber pad (2) is sleeved on after upper clamp ring (1) and lower clamping (3) dock; Two transfer blocks (7) lay respectively in the middle of the connecting plate of clamp ring (1) and lower clamping (3); The two ends of each transfer block (7) are connected with the connecting plate of upper clamp ring (1), the connecting plate of lower clamping (3) respectively;
Described absorbing assembly comprises: cantilever lever (9), mass elements end block (13) and mass elements intermediate mass (14);
Described cantilever lever (9) is provided with outside thread;
Described mass elements end block (13) is the cylinder with ladder-type axial hole;
Described mass elements intermediate mass (14) is the cylinder with axial threaded hole;
Mass elements intermediate mass (14) and cantilever lever (9) are threaded connection, and axial limiting is carried out by nut in the two ends of mass elements intermediate mass (14); Two end faces of mass elements intermediate mass (14) are fixed by screws in after two mass elements end blocks (13) are each passed through cantilever lever (9);
Its annexation is as follows: more than one absorbing assembly is fixed in the tapped hole of each transfer block (7) of hoop component respectively by cantilever lever (9), and is fixed cantilever lever (9) by nut.
2. the pipeline absorbing clip that a kind of direction as claimed in claim 1 is adjustable, is characterized in that, described upper clamp ring (1) and lower clamping (3) are semicircular ring, form globoidal structure after docking; Described rubber pad (2) is annulus.
3. the pipeline absorbing clip that a kind of direction as claimed in claim 1 is adjustable, is characterized in that, connecting plate, the transfer block (7) of upper clamp ring (1) are connected by bolt and nut with the connecting plate of lower clamping (3); Wherein, bolt is through the central through bore of transfer block (7).
4. the pipeline absorbing clip that a kind of direction as claimed in claim 1 is adjustable, is characterized in that, transfer block (7) is fixed with the joint of upper clamp ring (1) and lower clamping (3) respectively and adjusts cushion block (6).
5. the pipeline absorbing clip that a kind of direction as claimed in claim 1 is adjustable, is characterized in that, the particular location of described mass elements intermediate mass (14) on cantilever lever (9) is determined according to the weight of absorbing frequency and mass elements.
6. the pipeline absorbing clip that a kind of direction as claimed in claim 1 is adjustable, is characterized in that, each transfer block (7) is provided with the absorbing assembly of same number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489132.5U CN204785084U (en) | 2015-07-08 | 2015-07-08 | Clamp that shakes is inhaled to direction adjustable pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489132.5U CN204785084U (en) | 2015-07-08 | 2015-07-08 | Clamp that shakes is inhaled to direction adjustable pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204785084U true CN204785084U (en) | 2015-11-18 |
Family
ID=54525133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489132.5U Withdrawn - After Issue CN204785084U (en) | 2015-07-08 | 2015-07-08 | Clamp that shakes is inhaled to direction adjustable pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204785084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989882A (en) * | 2015-07-08 | 2015-10-21 | 中国船舶重工集团公司第七一九研究所 | Pipeline vibration-absorption clamping hoop with adjustable direction |
| CN109000056A (en) * | 2018-08-16 | 2018-12-14 | 江苏双益给排水有限公司 | A kind of secondary water-supply flow-monitoring device |
-
2015
- 2015-07-08 CN CN201520489132.5U patent/CN204785084U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989882A (en) * | 2015-07-08 | 2015-10-21 | 中国船舶重工集团公司第七一九研究所 | Pipeline vibration-absorption clamping hoop with adjustable direction |
| CN109000056A (en) * | 2018-08-16 | 2018-12-14 | 江苏双益给排水有限公司 | A kind of secondary water-supply flow-monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170405 |
|
| AV01 | Patent right actively abandoned |