CN212226389U - Novel three-way pipeline vibration absorber - Google Patents
Novel three-way pipeline vibration absorber Download PDFInfo
- Publication number
- CN212226389U CN212226389U CN202020846650.9U CN202020846650U CN212226389U CN 212226389 U CN212226389 U CN 212226389U CN 202020846650 U CN202020846650 U CN 202020846650U CN 212226389 U CN212226389 U CN 212226389U
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- Prior art keywords
- pipeline
- rubber block
- vibration
- damping rubber
- novel
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
Abstract
The utility model provides a novel three-way pipeline vibration absorber, which comprises a metal ring and a vibration damping rubber block, wherein the vibration damping rubber block is an annular elastomer which is sleeved on a pipeline in a matching way and is made of viscoelastic materials, a mounting groove is arranged on the outer circumferential surface of the vibration damping rubber block, and the metal ring is sleeved on the mounting groove by extruding the vibration damping rubber block; one end of the vibration-damping rubber block extends along the direction of the pipeline to form an anti-slip part, a fixing groove is formed in the outer circumferential surface of the anti-slip part, and the anti-slip part is fixed on the pipeline through a binding belt wound and tightened on the fixing groove; rigidity adjusting holes with adjustable size and shape are formed in the vibration reduction rubber blocks along the pipeline direction. The utility model provides a simple structure, the installation is changed conveniently, and is with low costs, and two vertical and radial three-dimensional inhale shakes, stabilize the higher novel three-dimensional pipeline bump leveller of antiskid nature.
Description
Technical Field
The utility model relates to a technical field that makes an uproar falls in the pipeline damping especially relates to a novel three-dimensional pipeline bump leveller who uses the pipeline resonance suppression of products such as vehicle, household electrical appliances.
Background
The vibration and stress of compressor pipelines of products such as air conditioners, refrigerators and the like are important indexes for evaluating quality. The vibration of the household appliance mainly comes from the compressor, the pipeline is a main way for transmitting the vibration, and the vibration-proof design of the pipeline is a key link for designing and manufacturing the household appliance.
The existing pipeline vibration absorber can only carry out vibration control in one direction and can only carry out vibration control in the radial direction of a pipeline, the vibration control can only be carried out on the radial mode of the pipeline at one position, and the vibration absorber needs to be additionally installed at a proper position when the longitudinal vibration of the pipeline at the position is controlled.
At present, the method for controlling the pipeline vibration of the household electrical appliance generally adopts a method for changing the pipeline structure, restricting the position and increasing the restricting quantity to enable the pipeline resonance frequency to avoid the working frequency, the method has good effect on a fixed-frequency compressor, but the variable-frequency compressor often cannot completely avoid all the working frequency or has higher realization cost.
The pipelines of household appliances, automobiles and other products have complex trend, and the front two-stage modal vibration modes of the pipelines generally comprise pipeline radial vibration and pipeline longitudinal vibration. The vibration of the pipeline in each frequency range is analyzed, the contribution of the first two-order mode of the pipeline is the largest, the resonance peak is generally the largest, the existing vibration absorbers are only designed for the radial vibration absorption of the pipeline, two vibration absorbers are required to be installed at different positions of the pipeline to control the first two-order pipeline mode resonance, the radial mode and the longitudinal mode of the pipeline are respectively controlled, and the cost and the design difficulty of the pipeline are increased.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide a simple structure, the installation is changed conveniently, and is with low costs, and two vertical and radial three-dimensional inhale shakes, stabilize the higher novel three-dimensional pipeline bump leveller of antiskid nature.
Aiming at the problems, the following technical scheme is provided: the utility model provides a novel three-dimensional pipeline bump leveller which characterized in that: the damping rubber block is an annular elastomer which is sleeved on a pipeline in a matching mode and is made of a viscoelastic material, an installation groove is formed in the outer circumferential surface of the damping rubber block, and the metal ring is sleeved on the installation groove by extruding the damping rubber block; one end of the vibration-damping rubber block extends along the direction of the pipeline to form an anti-slip part, a fixing groove is formed in the outer circumferential surface of the anti-slip part, and the anti-slip part is fixed on the pipeline through a binding belt wound and tightened on the fixing groove; rigidity adjusting holes with adjustable size and shape are formed in the vibration reduction rubber blocks along the pipeline direction.
The utility model discloses further set up to, rigidity regulation hole upper and lower, bilateral symmetry, and the total amount is for being equal to or being greater than 2's even number.
The utility model discloses further set up to, be equipped with two intervals mounting grooves side by side on the damping rubber block, and install two becket simultaneously.
The utility model discloses further set up to, the outside periphery that the becket was installed behind the piece is glued in the damping is less than the surface that the piece was glued in the damping.
The utility model discloses further set up to, be equipped with the opening on the damping is glued the piece, and it overlaps on the pipeline through the opening adaptation.
The utility model discloses further set up to, the metal ring is glued the piece with the damping and is wholly for circular body or square body.
The utility model discloses further set up as, the piece is glued in the damping and the becket is pasted through vulcanization or bonding process and is become an organic whole.
The utility model has the advantages that:
1, this technical scheme is on the basis that does not change original structure of pipeline, mounting means, and the design of absorbing is inhaled to the great frequency band of vibration amplitude, and the elastic element damping is glued the piece and is produced alone simultaneously, does not have the vulcanization technology with the becket, greatly reduced manufacturing cost, the form that elastic element and becket adopt the draw-in groove to be connected, and the installation is changed simple and conveniently.
2, the novel three-way pipeline vibration absorber can simultaneously control two longitudinal and radial two-order modes of a pipeline; if only the first-order pipeline mode is controlled, the radial vibration absorption function of the vibration absorber can be used, the longitudinal vibration absorption function of the vibration absorber can also be used, the trend of the pipeline at the installation position is not required, and the design difficulty of the pipeline is reduced.
3, the novel three-way pipeline vibration absorber is provided with the anti-skidding part and the fixing groove at one end of the vibration-damping rubber block, the vibration-damping rubber block is fixed on a pipeline through a binding belt wound and tightened on the fixing groove, the vibration absorber can be prevented from sliding on the pipeline integrally, and the stability is higher; the rigidity adjusting holes are arranged, so that two longitudinal different rigidities can be realized, and the rigidity can be increased by reducing the number and the size of the rigidity adjusting holes in the direction needing high rigidity; the vibration damping rubber block can be provided with an opening for installation so as to be suitable for a longer pipeline; the rubber block can be sleeved from the end of the pipeline during installation without an opening and moved to an installation position, the service life of the rubber block can be prolonged due to the design without the opening, and the rubber block cannot fall off from the opening, so that the reliability is improved.
Drawings
Fig. 1 is a schematic sectional view of a three-way pipeline vibration absorber according to an embodiment of the present invention when the novel three-way pipeline vibration absorber is installed on a pipeline;
FIG. 2 is a schematic structural view of a damping rubber block in an embodiment of the present invention;
fig. 3 is a schematic end face structure view of a damping rubber block with an opening and two rigidity adjusting holes in the embodiment of the present invention;
fig. 4 is a schematic end face structure view of a damping rubber block without an opening and provided with four rigidity adjusting holes in the embodiment of the present invention;
FIG. 5 is a schematic view of an end face structure of a square vibration damping rubber block in an embodiment of the present invention;
FIG. 6 is a schematic structural view of a damping rubber block with two mounting grooves in an embodiment of the present invention;
FIG. 7 is a schematic sectional view of an embodiment of the present invention, wherein the outer surface of the metal ring is lower than the outer surface of the damping rubber block;
the figure shows schematically: 1-a metal ring; 2-damping rubber block; 21-mounting grooves; 22-stiffness adjustment holes; 3-a non-slip part; 31-fixing the groove; 32-a ribbon; 4-pipeline;
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, a novel three-way pipeline vibration absorber includes a metal ring 1 and a vibration-damping rubber block 2, wherein the vibration-damping rubber block 2 is an annular elastic body which is fittingly sleeved on a pipeline 4 and is made of a viscoelastic material, an installation groove 21 is formed in an outer circumferential surface of the vibration-damping rubber block 2, and the metal ring 1 is sleeved on the installation groove 21 by extruding the vibration-damping rubber block 2; as shown in fig. 3 to 5, the metal ring 1 and the damping rubber 2 are integrally circular, square or other regular shapes. Further, the vibration damping rubber block 2 and the metal ring 1 are adhered into a whole through a vulcanization or bonding process.
As shown in fig. 1, fig. 2 and fig. 7, one end of the vibration damping rubber block 2 extends along the direction of the pipeline 4 to form a non-slip portion 3, a fixing groove 31 is formed on the outer circumferential surface of the non-slip portion 3, and the non-slip portion 3 is fixed on the pipeline 4 by a tie 32 wound and tightened on the fixing groove 31. As shown in fig. 3 and 4, a rigidity adjusting hole 22 with adjustable size and shape is formed in the damping rubber block 2 along the direction of the pipeline 4.
The structure carries out vibration absorption design on a frequency band with larger vibration amplitude on the basis of not changing the original structure and installation mode of the pipeline 4; the cross section of the metal ring 1 can be circular or other shapes (different shapes correspond to different radial and longitudinal stiffness ratios of the vibration absorber). The damping rubber block 2 is an annular elastic body, the outer circumferential surface of the damping rubber block is provided with an installation groove 21 of the metal ring 1, the inner side of the damping rubber block is directly contacted with the pipeline 4, the damping rubber block 2 is sleeved on the pipeline 4 through a central installation hole, the damping rubber block 2 has larger compressibility and deformability, and the metal ring 1 can be sleeved on the installation groove 21 through extrusion deformation; meanwhile, the elastic element vibration damping rubber block 2 is produced independently, a vulcanization process of the elastic element vibration damping rubber block and the metal ring 1 is omitted, production cost is greatly reduced, the vibration damping rubber block 2 and the metal ring 1 are connected through a clamping groove or adhered into a whole through a vulcanization or bonding process, and installation and replacement are simple and convenient.
The vibration-damping rubber block 2 is fixed on the pipeline 4 through the ribbon 32 wound and tightened on the fixing groove 31, so that the vibration absorber can be prevented from sliding on the pipeline 4 integrally, and the stability is higher. When the anti-slip part 3 is applied to a pipeline with large friction force, the anti-slip part can be omitted as the case may be. The rigidity adjusting holes 22 are arranged, two longitudinal different rigidities can be realized, and the rigidity can be increased by reducing the number and the size of the rigidity adjusting holes 22 in the direction needing high rigidity.
Further, the rigidity adjusting holes are symmetrical up and down and left and right, and the total number of the rigidity adjusting holes is an even number which is equal to or larger than 2. As shown in fig. 3, when there are two rigidity adjusting holes, it is possible to realize different vertical and horizontal rigidities; as shown in fig. 4, when the number of the stiffness adjustment holes is an even number greater than or equal to 4 or no stiffness adjustment holes are provided, the radial stiffness of the two pipelines is the same, and the difference between the upper and lower stiffness and the left and right stiffness can be realized by the difference between the sizes of the stiffness adjustment holes.
As shown in fig. 6, the damping rubber block 2 is provided with two installation grooves 21 arranged side by side at intervals, and two metal rings 1 are installed at the same time, wherein the two metal rings 1 can have different weights, control different frequencies, and also control the same frequency, thereby increasing the damping effect.
As shown in fig. 7, the circumferential surface of the outer side of the metal ring 1 after being mounted on the damping rubber block 2 is lower than the outer surface of the damping rubber block 2; this design prevents the metal ring 1 from hitting other parts and generating noise. In addition, the metal ring 1 can be designed into a semicircular ring with folding lugs at two ends, and then the semicircular ring penetrates through the folding lugs through bolts to be connected to form a whole circular ring sleeved on the pipeline 4.
As shown in fig. 3, an opening is formed on the damping rubber block 2, and the damping rubber block is fittingly sleeved on the pipeline 4 through the opening. The damping rubber block 2 can be provided with an opening to be suitable for a longer pipeline 4; the damping rubber block 2 can be not provided with an opening, as shown in fig. 4, the damping rubber block is sleeved from the end of the pipeline 4 during installation and is moved to an installation position, the service life of the damping rubber block 2 can be prolonged due to the design without the opening, the damping rubber block cannot fall off from the opening, and the reliability is improved.
The novel three-way pipeline vibration absorber can simultaneously control two longitudinal and radial two-order modes of a pipeline 4; if only the first-order pipeline mode is controlled, the radial vibration absorption function of the vibration absorber can be used, the longitudinal vibration absorption function of the vibration absorber can also be used, the trend of the pipeline 4 at the installation position is not required, and the design difficulty of the pipeline 4 is reduced.
The design method of the three-way pipeline vibration absorber comprises the following steps:
(1) the 3 directions and frequencies of the pipeline 4 vibration to be controlled are determined through experiment or simulation calculation. And determining the mass, 2 radial rigidities, longitudinal rigidity and damping performance of the vibration absorber.
(2) The section shape of the metal ring 1 of the vibration absorber is selected according to the parameters of the radial rigidity and the longitudinal rigidity of the 2 vibration absorbers (the ratio of the radial rigidity to the longitudinal rigidity of the square metal ring 1 is large, the ratio of the radial rigidity to the longitudinal rigidity of the circular metal ring 1 is small, and other shapes can be designed according to requirements), and the drawing and the material hardness of the vibration absorber are determined by adjusting the shape of the vibration reduction rubber block 2, the size and the number of the rigidity adjusting holes 22 and the transverse supporting thickness of the vibration absorber, so that the radial rigidity and the longitudinal rigidity of the 2 vibration absorbers meet the requirements. If the vibration in one direction only needs to be controlled in the radial direction, the rigidity adjusting holes 22 are designed to be symmetrical up and down and left and right, have the same size, and the number is an even number which is more than or equal to 4, or the rigidity adjusting holes 22 are not arranged, and the rigidity is adjusted directly through the hardness of the material.
(3) Producing the vibration absorber according to a drawing, carrying out 2 radial rigidity and longitudinal rigidity tests, and if the radial rigidity and the longitudinal rigidity do not meet the requirements, adjusting the hardness or the shape of the material of the vibration damping rubber block 2 until the rigidity requirement is met; and testing the damping performance of the vibration absorber, and adjusting the damping of the elastic material on the basis of not changing the rigidity performance to finally meet the damping performance of the vibration absorber, so that the trial production of the vibration absorber is completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel three-dimensional pipeline bump leveller which characterized in that: the damping rubber block is an annular elastomer which is sleeved on a pipeline in a matching mode and is made of a viscoelastic material, an installation groove is formed in the outer circumferential surface of the damping rubber block, and the metal ring is sleeved on the installation groove by extruding the damping rubber block; one end of the vibration-damping rubber block extends along the direction of the pipeline to form an anti-slip part, a fixing groove is formed in the outer circumferential surface of the anti-slip part, and the anti-slip part is fixed on the pipeline through a binding belt wound and tightened on the fixing groove; rigidity adjusting holes with adjustable size and shape are formed in the vibration reduction rubber blocks along the pipeline direction.
2. The novel three-way pipeline vibration absorber of claim 1, wherein: the rigidity adjusting holes are symmetrical up and down and left and right, and the total number of the rigidity adjusting holes is an even number which is equal to or larger than 2.
3. The novel three-way pipeline vibration absorber as claimed in claim 1 or 2, wherein: the damping rubber block is provided with two mounting grooves which are arranged side by side at intervals and are provided with two metal rings simultaneously.
4. The novel three-way pipeline vibration absorber of claim 1, wherein: the circumferential surface of the outer side of the metal ring arranged behind the vibration damping rubber block is lower than the outer surface of the vibration damping rubber block.
5. The novel three-way pipeline vibration absorber of claim 1, wherein: the vibration reduction rubber block is provided with an opening, and the vibration reduction rubber block is sleeved on a pipeline in a matching mode through the opening.
6. The novel three-way pipeline vibration absorber of claim 1, wherein: the metal ring and the vibration damping rubber block are integrally circular or square.
7. The novel three-way pipeline vibration absorber of claim 1, wherein: the vibration-damping rubber block and the metal ring are adhered into a whole through a vulcanization or bonding process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846650.9U CN212226389U (en) | 2020-05-20 | 2020-05-20 | Novel three-way pipeline vibration absorber |
| PCT/CN2020/092527 WO2021232457A1 (en) | 2020-05-20 | 2020-05-27 | Novel three-way pipeline vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846650.9U CN212226389U (en) | 2020-05-20 | 2020-05-20 | Novel three-way pipeline vibration absorber |
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| Publication Number | Publication Date |
|---|---|
| CN212226389U true CN212226389U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020846650.9U Active CN212226389U (en) | 2020-05-20 | 2020-05-20 | Novel three-way pipeline vibration absorber |
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| Country | Link |
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| CN (1) | CN212226389U (en) |
| WO (1) | WO2021232457A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11965580B2 (en) | 2021-07-12 | 2024-04-23 | Universidade Federal Do Parana | Tunable viscoelastic neutralizer with oscillating mass on shaft for control of vibrations in pipes in general |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352807A (en) * | 2022-01-06 | 2022-04-15 | 中国航发贵阳发动机设计研究所 | Expandable aligning vibration attenuation clamp |
| CN114962546A (en) * | 2022-06-09 | 2022-08-30 | 北京汽车集团越野车有限公司 | Frequency-adjustable rear axle vertical vibration absorption assembly, automobile, method and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196119A (en) * | 1996-01-19 | 1997-07-29 | Nok Megurasutikku Kk | Vibration-isolating insulator |
| KR20100023337A (en) * | 2008-08-21 | 2010-03-04 | 대우조선해양 주식회사 | Anti-vibration clamp for pipe support |
| CN102537524A (en) * | 2011-12-20 | 2012-07-04 | 芜湖博耐尔汽车电气系统有限公司 | Automobile air conditioner pipeline fixing support |
| US8997794B2 (en) * | 2013-04-18 | 2015-04-07 | Sung-Kyu Chang | Vibration absorbing pipe for refrigeration compressor |
| JP2017106507A (en) * | 2015-12-08 | 2017-06-15 | 日立Ｇｅニュークリア・エナジー株式会社 | Support device |
| CN206781489U (en) * | 2017-06-15 | 2017-12-22 | 重庆松芝汽车空调有限公司 | A kind of vibration absorber of pipelines of automobile air conditioner |
-
2020
- 2020-05-20 CN CN202020846650.9U patent/CN212226389U/en active Active
- 2020-05-27 WO PCT/CN2020/092527 patent/WO2021232457A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11965580B2 (en) | 2021-07-12 | 2024-04-23 | Universidade Federal Do Parana | Tunable viscoelastic neutralizer with oscillating mass on shaft for control of vibrations in pipes in general |
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| Publication number | Publication date |
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| WO2021232457A1 (en) | 2021-11-25 |
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