CN103322118A - Broadband dynamic vibration absorber - Google Patents
Broadband dynamic vibration absorber Download PDFInfo
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- CN103322118A CN103322118A CN201310290587XA CN201310290587A CN103322118A CN 103322118 A CN103322118 A CN 103322118A CN 201310290587X A CN201310290587X A CN 201310290587XA CN 201310290587 A CN201310290587 A CN 201310290587A CN 103322118 A CN103322118 A CN 103322118A
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- mass block
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- absorbing assembly
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Abstract
A broadband dynamic vibration absorber comprises a base, a basic vibration absorbing unit and n sets of vibration absorbing assemblies, wherein the structures and the sizes of the n sets of vibration absorbing assemblies are the same, and the boundary dimensions of the n sets of vibration absorbing assemblies gradually become small. The basic vibration absorbing unit and each set of vibration absorbing assemblies are respectively formed by a mass block and a rubber block connected to the bottom of the mass block. The mass block of each vibration absorbing assembly is of a cup-shaped structure, the n sets of vibration absorbing assemblies are arranged into a whole from small to large in a sleeved mode to be connected with the basic vibration absorbing unit and the base, namely, the front set of vibration absorbing assembly is arranged in the mass block of the next set of vibration absorbing assembly in a sleeved mode, the basic vibration absorbing unit is arranged in the mass block of vibration absorbing assembly in the innermost layer in a sleeved mode, the end faces of the mass blocks are on the same plane, the horizontal distance D is reserved between every two adjacent mass blocks, and the n is an integer between 2 and 6. The broadband dynamic vibration absorber is compact in structure, scientific in design, convenient to install, high in vibration reducing efficiency and low in cost. The appearance of the broadband dynamic vibration absorber can be manufactured at random according to the appearance of a main system, and the broadband dynamic vibration absorber can be widely applied to various gasoline vehicles, diesel vehicles and mechanical devices.
Description
Technical field
The present invention relates to a kind of noise reduction vibration damping equipment, relate in particular to a kind of wideband dynamic vibration absorber for locomotive and machinery.
Background technique
In order to solve the vibrating noise of locomotive and machinery generation in service, generally adopt dynamic vibration absorber, be applied to the dynamic vibration absorber of all kinds of locomotives and machinery at present, generally be made up of a mass block and a block rubber, there is following deficiency in this kind dynamic vibration absorber:
1. absorbing frequency is single, can only solve the vibrating noise that the single mode resonance of structure produces;
2. in order to overcome the vibrating noise that main system produces when the multistage mode of generation resonates under extraneous variable vibration excitation, often need to use a plurality of dynamic vibration absorbers, cause cost to increase.
Summary of the invention
[0003] the technical problem to be solved in the present invention is: provide a kind of wideband dynamic vibration absorber simple in structure, to overcome the existing deficiency of above-mentioned prior art.
The technological scheme that the present invention takes: a kind of wideband dynamic vibration absorber, comprise base, basic absorbing unit and structure are identical with shape, the n group absorbing assembly that boundary dimension progressively reduces, described basic absorbing unit is made of a mass block and a block rubber, described block rubber is connected the bottom of described mass block, described every group of absorbing assembly is made of a mass block and a block rubber, described block rubber is connected the bottom of described mass block, the mass block of described absorbing assembly is cup-shaped structure, n group absorbing assembly is connected with base with described basic absorbing unit according to the back in aggregates of order suit from small to large, that is: last one group of absorbing assembly is sleeved among the mass block of next group absorbing assembly, the block rubber of one group of absorbing assembly of outermost surface connects base, basic absorbing unit is sleeved among the mass block of one group of absorbing assembly of innermost layer, the end face of the mass block of described basic absorbing unit and every group of absorbing assembly maintains an equal level, remain with level interval D between the two adjacent mass blockes, said n is the arbitrary integer between 2 ~ 6.
Its further technological scheme is: described block rubber is platy structure, or adopts the mode of sulfuration or take its immediate mass block of bonding mode or the base connection.
Its further technological scheme be: the cross sectional form of described mass block is for circular or for square or be polygonal; With it Dui Ying block rubber be shaped as circle or for square or for polygonal.
Described mass block adopts cast iron or metallic material such as steel or copper, aluminium to make.
Because adopt technique scheme, the present invention's wideband dynamic vibration absorber has following beneficial effect:
1. the present invention's wideband dynamic vibration absorber combines a plurality of single-frequency bump levellers with different mass M combinations by different spring rate K, the absorbing frequency is wide, for multistage mode resonance problem of structure provides solution, when main system is being subjected under the extraneous variable vibration excitation, the different absorbing assemblies of wideband bump leveller can vibrate under each self-corresponding frequency, thereby effectively alleviate resonance, avoid owing to resonance takes place multistage mode main system or the other system parts relevant with main system being produced harm and destruction;
2. the present invention's wideband dynamic vibration absorber, the damping efficiency height can effectively absorb in automobile, the lathe startup working procedure because the vibrational energy that motor encourages under body, vehicle frame, lathe resonance to produce reduces noise, guarantee the durable use of car load NVH performance and lathe, improve working life; Overcome prior art simultaneously and must use the drawback of a plurality of single-frequency dynamic vibration absorbers, effectively reduced cost;
3. the present invention's wideband dynamic vibration absorber compact structure, design science, easy for installation, profile can arbitrarily be made according to the profile demand of main system, can be widely applied in various petrol and diesel oil cars, the machinery.
Be further described below in conjunction with the technical characteristics of drawings and Examples to the present invention's wideband dynamic vibration absorber.
Description of drawings
Fig. 1～Fig. 2: the wideband dynamic vibration absorber structural representation of the embodiment of the invention one:
Fig. 1-plan view, the worm's eye view of Fig. 2-Fig. 1;
Fig. 3～Fig. 4: the wideband dynamic vibration absorber structural representation of the embodiment of the invention two:
Fig. 3-plan view, the worm's eye view of Fig. 4-Fig. 3;
Fig. 5: existing single-frequency bump leveller structural representation.
Among the figure:
1-base, Z, Z1, Z2, Z3, Zn-mass block, X, X1, X2, X3, Xn-block rubber, D-level interval.
Embodiment
Embodiment one
A kind of wideband dynamic vibration absorber, comprise base 1, basic absorbing unit and structure are identical with shape, 2 groups of absorbing assemblies that boundary dimension progressively reduces, described basic absorbing unit is made of a mass block Z and a block rubber X, described block rubber X is connected the bottom of described mass block Z, described every group of absorbing assembly is made of a mass block and a block rubber, described block rubber is connected the bottom of described mass block, the mass block of described absorbing assembly is cup-shaped structure, 2 groups of absorbing assemblies are connected with base with described basic absorbing unit according to the back in aggregates of order suit from small to large, that is: first group of absorbing assembly is sleeved among the mass block Z2 of second group of absorbing assembly, its block rubber X1 connects the cup end of the mass block of second group of absorbing assembly, the block rubber X2 of second group of absorbing assembly connects base 1, basic absorbing unit is sleeved among the mass block Z1 of first group of absorbing assembly, its block rubber X connects the cup end of the mass block Z1 of first group of absorbing assembly, the mass block Z of described basic absorbing unit and every group of absorbing assembly, Z1, and the end face of Z2 is fair, remains with level interval D between the two adjacent mass blockes.
Described block rubber is platy structure, adopts the mode of sulfuration to be connected with its mass block of being close to or base.
Described mass block adopts cast iron to make, and its cross sectional form be circle, and Dui Ying block rubber is shaped as circle with it.
Embodiment two
A kind of wideband dynamic vibration absorber, its basic structure is identical with embodiment one, that is:
Described block rubber is platy structure, adopts its immediate mass block or the base of mode of sulfuration to connect.
Described mass block adopts cast iron to make.
Difference is: the cross sectional form of described mass block is square.
With the conversion as above-described embodiment one and embodiment two:
1. the number n of described absorbing assembly can increase or reduce according to actual needs, and the value of general n is the arbitrary integer between 2 ~ 6, can certainly be bigger;
2. the shape of described mass block and block rubber also can be made polygonal or other shapes as required;
3. described block rubber also can adopt its immediate mass block of bonding mode or base to connect.
4. described mass block also can adopt steel or metallic material such as copper, aluminium to make.
Working principle:
The present invention's wideband dynamic vibration absorber is by different spring rate K and different mass M combinations, main system is being received under the extraneous variable vibration excitation, multistage mode own resonates, this moment, the different bump levellers of wideband dynamic vibration absorber vibrated under respective frequencies separately, can effectively alleviate resonance, avoid multistage mode resonance to take place to main system or and other related system parts generation harm of main system.
Mass block: comprise mass block Z, Z1, Z2, the effect of bump leveller mass M mainly is provided;
Block rubber: comprise block rubber X, X1, X2, fall for system provides stiffness K to be converted into thermal energy consumption with the kinetic energy that is used for absorbing.
When resonance takes place in the low frequency mode of main system, mass block Z, Z1, Z2 provide bump leveller required mass M simultaneously, and block rubber X2 provides bump leveller required stiffness K, and bump leveller is started working, and the thermal energy consumption that the resonance energy of main system is converted into block rubber is fallen.When the higher mode of main system is stimulated generation resonance, mass block Z1, Z provide the new absorbing frequency of bump leveller required mass block M, block rubber X1 provide stiffness K, and new bump leveller absorbs the mode resonance energy of main system and mass block new system that Z2 forms, and the like.
Install
This patent can adopt bolt or riveted joint base to be connected to the vibration position of car load vehicle body, vehicle frame or lathe in implementation process, when automobile, lathe start in the working procedure, because the excitation vehicle body of motor, vehicle frame, lathe resonance produce bigger vibrational energy, the wideband dynamic vibration absorber can absorb the vibrational energy that produces and reduce its noise, to guarantee the durable use of car load NVH performance and assurance lathe, improve working life.
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Claims (4)
1. wideband dynamic vibration absorber, it is characterized in that: described bump leveller comprises base, basic absorbing unit and structure are identical with shape, the n group absorbing assembly that boundary dimension progressively reduces, described basic absorbing unit is made of a mass block and a block rubber, described block rubber is connected the bottom of described mass block, described every group of absorbing assembly is made of a mass block and a block rubber, described block rubber is connected the bottom of described mass block, the mass block of described absorbing assembly is cup-shaped structure, n group absorbing assembly is connected with base with described basic absorbing unit according to the back in aggregates of order suit from small to large, that is: last one group of absorbing assembly is sleeved among the mass block of next group absorbing assembly, the block rubber of one group of absorbing assembly of outermost surface connects base, basic absorbing unit is sleeved among the mass block of one group of absorbing assembly of innermost layer, the end face of the mass block of described basic absorbing unit and every group of absorbing assembly maintains an equal level, remain with level interval D between the two adjacent mass blockes, said n is the arbitrary integer between 2 ~ 6.
2. wideband dynamic vibration absorber according to claim 1, it is characterized in that: described block rubber is platy structure, or adopts the mode of sulfuration or take its immediate mass block of bonding mode or base connects.
3. wideband dynamic vibration absorber according to claim 1 and 2 is characterized in that: the cross sectional form of described mass block is for circular or for square or be polygonal; With it Dui Ying block rubber be shaped as circle or for square or for polygonal.
4. wideband dynamic vibration absorber according to claim 3 is characterized in that: described mass block adopts cast iron or metallic material such as steel or copper, aluminium to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290587.XA CN103322118B (en) | 2013-07-11 | 2013-07-11 | Broadband dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310290587.XA CN103322118B (en) | 2013-07-11 | 2013-07-11 | Broadband dynamic vibration absorber |
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| Publication Number | Publication Date |
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| CN103322118A true CN103322118A (en) | 2013-09-25 |
| CN103322118B CN103322118B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310290587.XA Expired - Fee Related CN103322118B (en) | 2013-07-11 | 2013-07-11 | Broadband dynamic vibration absorber |
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| Country | Link |
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| CN (1) | CN103322118B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989829A (en) * | 2015-03-03 | 2016-10-05 | 苏州静声泰环保科技有限公司 | Multi-layer diaphragm type composite resonance sound absorption module |
| CN109404460A (en) * | 2018-12-06 | 2019-03-01 | 陕西理工大学 | A kind of combination stack frictional damping bump leveller under magnetic confinement |
| CN110315955A (en) * | 2019-06-21 | 2019-10-11 | 河南美力达汽车有限公司 | A kind of extended-range automobile front engine cabin support construction |
| CN113653762A (en) * | 2021-07-08 | 2021-11-16 | 广西科技大学 | Two-degree-of-freedom spring-mass block vibration damper |
| CN113653763A (en) * | 2021-07-09 | 2021-11-16 | 广西科技大学 | Vibration damper of reciprocating mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406094A (en) * | 1980-02-28 | 1983-09-27 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Apparatus for anchoring self-supporting, tall structures |
| WO2003076821A1 (en) * | 2002-03-04 | 2003-09-18 | Lord Corporation | Mount with dual stiffness |
| CN1904406A (en) * | 2005-07-25 | 2007-01-31 | 通用电气公司 | Suspension system |
| CN202863113U (en) * | 2012-09-14 | 2013-04-10 | 四川南部县聚力机械有限公司 | Front support of engine |
| CN203395080U (en) * | 2013-07-11 | 2014-01-15 | 广西科技大学 | Wideband dynamic vibration absorber |
-
2013
- 2013-07-11 CN CN201310290587.XA patent/CN103322118B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406094A (en) * | 1980-02-28 | 1983-09-27 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Apparatus for anchoring self-supporting, tall structures |
| WO2003076821A1 (en) * | 2002-03-04 | 2003-09-18 | Lord Corporation | Mount with dual stiffness |
| CN1904406A (en) * | 2005-07-25 | 2007-01-31 | 通用电气公司 | Suspension system |
| CN202863113U (en) * | 2012-09-14 | 2013-04-10 | 四川南部县聚力机械有限公司 | Front support of engine |
| CN203395080U (en) * | 2013-07-11 | 2014-01-15 | 广西科技大学 | Wideband dynamic vibration absorber |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989829A (en) * | 2015-03-03 | 2016-10-05 | 苏州静声泰环保科技有限公司 | Multi-layer diaphragm type composite resonance sound absorption module |
| CN109404460A (en) * | 2018-12-06 | 2019-03-01 | 陕西理工大学 | A kind of combination stack frictional damping bump leveller under magnetic confinement |
| CN110315955A (en) * | 2019-06-21 | 2019-10-11 | 河南美力达汽车有限公司 | A kind of extended-range automobile front engine cabin support construction |
| CN113653762A (en) * | 2021-07-08 | 2021-11-16 | 广西科技大学 | Two-degree-of-freedom spring-mass block vibration damper |
| CN113653763A (en) * | 2021-07-09 | 2021-11-16 | 广西科技大学 | Vibration damper of reciprocating mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103322118B (en) | 2014-12-10 |
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Effective date of registration: 20160317 Address after: 545006 the Guangxi Zhuang Autonomous Region East Ring Road, Liuzhou, No. 268 Patentee after: Guangxi University of Science and Technology Patentee after: Guangxi China source Machinery Co., Ltd. Address before: 545006 the Guangxi Zhuang Autonomous Region East Ring Road, Liuzhou, No. 268 Patentee before: Guangxi University of Science and Technology |
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| 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: 20141210 Termination date: 20170711 |