CN103615488B - The spring steel chip dynamic vibration absorber that a kind of rigidity is adjustable - Google Patents
The spring steel chip dynamic vibration absorber that a kind of rigidity is adjustable Download PDFInfo
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- CN103615488B CN103615488B CN201310624994.XA CN201310624994A CN103615488B CN 103615488 B CN103615488 B CN 103615488B CN 201310624994 A CN201310624994 A CN 201310624994A CN 103615488 B CN103615488 B CN 103615488B
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Abstract
The present invention is to provide the spring steel chip dynamic vibration absorber that a kind of rigidity is adjustable.Comprise electromagnetic spring part and mass block, the bottom of described electromagnetic spring part is fixedly installed in ring-spring inside configuration, the upper end of the central shaft of electromagnetic spring part and ring-spring anatomical connectivity, the hard-wired ring-spring structure upper of mass block.The present invention, by adding electromagnetic spring structure, has change of frequency and responds fast advantage, and only needing to change electric current can change rigidity, can on-line continuous regulate, realize the frequency of following the tracks of change, to adapt to the working conditions change of machinery, more can meet the absorbing requirement under different conditions.
Description
Technical field
What the present invention relates to is a kind of bump leveller, specifically a kind of dynamic vibration absorber of variable rigidity.
Background technique
Mechanical vibration can cause numerous adverse influence in engineering, as caused noise pollution, affect the work of other machinery, reduce the precision of instrument, machine, even can cause equipment, the destructions such as building structure time serious.Use multiple means to reduce the harm of vibration in engineering, mainly contain absorbing, vibration isolation, resistance is shaken, weakening and structural modification etc.Wherein in controlled system, additional power bump leveller suppresses the effective means of vibration.Dynamic vibration absorber is that one has certain rigidity, the structure of quality.When the excitation source with characteristic frequency encourages total system, if the natural frequency of bump leveller is identical with excited frequency, namely cause the resonance of bump leveller, the energy making it absorb is maximum.Excitation source input to total system energy constant time, then controlled device input energy minimum, make the vibration of controlled device under this frequency minimum, play the effect of absorbing.
And traditional dynamic vibration absorber is rigidity, the system of the immutable passive type of the parameters such as quality, natural frequency can not regulate constantly, has good shock attenuation result to the characteristic frequency of controlled system, but poor to the shock attenuation result of the object of vibration frequency change.Therefore usually design the semi active vibration absorber of some Parameter adjustable in vibration engineering field, be also called self-tuning bump leveller.The method of usual employing variation rigidity regulates absorbing frequency, as realized the change of rigidity by electrorheological fluid or magnetic flow liquid, ([1] Liao Guojiang, Gong Xinglong, Xuan Shouhu, Kang Cunjun. based on the research [A] of the active self-tuning dynamic vibration absorber of magnetic rheology elastic body. the 6th national emr fluid and application academic conference program volume and thesis summary set [C] .2011), ELECTROMAGNETIC STIFFNESS is regulated by changing gap, ([2] Qian little Yong, Hu Haiyan. the semi active vibration absorber of adjustable clearance and realization [J] thereof. vibration engineering journal, 2001, 14 (4): 378-382), change spring rate number of active coils ([3] Xu Zhenbang, Gong Xinglong, Chen Xianmin etc. mechanical type frequency-adjustable dynamic vibration absorber and damping behavior [J] thereof. vibration and impact, 2010, 29 (2): 1-6).It has widened the operating frequency range of bump leveller, makes bump leveller can tackle various working condition.
Summary of the invention
A kind of change of frequency is the object of the present invention is to provide to respond the adjustable spring steel chip dynamic vibration absorber of fast rigidity.
The object of the present invention is achieved like this: comprise electromagnetic spring part and mass block, the bottom of described electromagnetic spring part is fixedly installed in ring-spring inside configuration, the upper end of the central shaft of electromagnetic spring part and ring-spring anatomical connectivity, the hard-wired ring-spring structure upper of mass block.
The present invention can also comprise:
1, described ring-spring structure is formed by the spring steel plate docking that two bend to " U " type.
2, described ring-spring structure is double layer construction.
3, two spring steel plate docking structures bending to " U " type are: upper and lower two arranged outside bending to the joint of the spring steel plate of " U " type have pressing plate, between the spring steel plate of joint, arrange liner plate, two-layer spring steel plate, pressing plate, liner plate are bolted integral.
Chief component of the present invention comprises mass block, pressing plate, liner plate, spring steel plate, electromagnetic spring, adpting flange and central shaft.Spring steel plate bends to U-shaped on request, is together fixed into ring-spring structure with pressing plate, liner plate.Mass block is threaded connection and is arranged on annular spring structure upper end, forms the quality spring structure of passive type with this.Again electromagnetic spring is placed in annular spring structure, forms the reliable integrated morphology of a kind of structural stability.
The spring steel chip bump leveller of the composition such as mass block, spring steel plate, pressing plate passive type.The present invention, on the basis of original electromagnetic spring, by adding the annular spring structure of the compositions such as spring steel plate, overcomes conventional helical formula spring shortcoming by the impact of installation pretightening force in engineering-environment.
Spring steel plate bends to U-shaped on request, and fix together with pressing plate, liner plate and form annular spring structure, mass block is installed on annular spring structure upper end.
Electromagnetic spring partial fixing is in annular spring structure, and top is connected with adpting flange by the central shaft of drawing, and flange is fixed on annular spring structure upper again.Bottom is connected with annular spring structure bottom by screw.
Advantage of the present invention is using annular spring structure as total supporting way, overcome the shortcoming of conventional helical formula spring by the impact of installation pretightening force, make the natural frequency of bump leveller can not occur because of the difference of frock changing, and increase Area of bearing, also make center of gravity reduce, be conducive to the installation stability improving bump leveller.Annular spring structure has linear preferably simultaneously, and its rigidity can keep constant in a larger excursion.The present invention, by adding electromagnetic spring structure, has change of frequency and responds fast advantage, and only needing to change electric current can change rigidity, can on-line continuous regulate, realize the frequency of following the tracks of change, to adapt to the working conditions change of machinery, more can meet the absorbing requirement under different conditions.
Accompanying drawing explanation
Fig. 1 general structure generalized section of the present invention.
Fig. 2 loop configuration upper end formation of the present invention schematic diagram.
Fig. 3 loop configuration polycrystalline substance of the present invention schematic diagram.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 composition of the present invention comprises pressing plate 1, adpting flange 2, linear bearing 3, central shaft 4, electromagnetic spring part 5, liner plate 6, mass block 7, end cap 8 and spring steel plate 9.Spring steel plate 9 bends to certain annular shape on request, is together fixed into ring-spring structure with pressing plate 1, liner plate 6.Mass block 7 is arranged on annular spring superstructure, forms the quality spring structure of a passive type with this.Electromagnetic spring part is placed in annular spring structure, stable, the reliable bump leveller structure of common composition.Can ELECTROMAGNETIC STIFFNESS be changed by changing electric current, and then change global stiffness, reach the object regulating bump leveller frequency of okperation.
Mass block 10 center is provided with a round platform, and screw thread has been attacked in outer ring.Liner plate center is provided with a tapped hole, for installing gauge block.
Central shaft 4 upper end is provided with screw thread, is connected with the tapped hole at adpting flange 2 center, and adpting flange is connected with annular spring structure upper end again.Central shaft, through the linear bearing 4 be built in end cap 8, is connected with external structure.
Spring steel plate 12 is fixed by pressing plate 1, liner plate 9, forms an annular spring structure, when playing spring-supported effect.Loop configuration upper end is provided with rivet hole, for spring steel plate, pressing plate, liner plate fixing.Loop configuration lower end and electromagnetic spring part are connected by screw, and are provided with again four mounting holes, for the installation of overall bump leveller simultaneously.
Claims (3)
1. the spring steel chip dynamic vibration absorber that a rigidity is adjustable, comprise electromagnetic spring part and mass block, it is characterized in that: the bottom of described electromagnetic spring part is fixedly installed in ring-spring inside configuration, the upper end of the central shaft of electromagnetic spring part and ring-spring anatomical connectivity, mass block is fixedly installed in ring-spring structure upper, and described ring-spring structure is formed by the spring steel plate docking that two bend to " U " type.
2. the spring steel chip dynamic vibration absorber that a kind of rigidity according to claim 1 is adjustable, is characterized in that: described ring-spring structure is double layer construction.
3. the spring steel chip dynamic vibration absorber that a kind of rigidity according to claim 2 is adjustable, it is characterized in that: two spring steel plate docking structures bending to " U " type are: upper and lower two arranged outside bending to the joint of the spring steel plate of " U " type have pressing plate, between the spring steel plate of joint, arrange liner plate, two-layer spring steel plate, pressing plate, liner plate are bolted integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624994.XA CN103615488B (en) | 2013-11-29 | 2013-11-29 | The spring steel chip dynamic vibration absorber that a kind of rigidity is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310624994.XA CN103615488B (en) | 2013-11-29 | 2013-11-29 | The spring steel chip dynamic vibration absorber that a kind of rigidity is adjustable |
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| Publication Number | Publication Date |
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| CN103615488A CN103615488A (en) | 2014-03-05 |
| CN103615488B true CN103615488B (en) | 2015-09-30 |
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| CN201310624994.XA Active CN103615488B (en) | 2013-11-29 | 2013-11-29 | The spring steel chip dynamic vibration absorber that a kind of rigidity is adjustable |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696428B (en) * | 2015-02-13 | 2017-03-15 | 柳州金鸿橡塑有限公司 | Rubber dynamic vibration absorber |
| CN104976432A (en) * | 2015-07-08 | 2015-10-14 | 中国船舶重工集团公司第七一九研究所 | Pipeline vibration-insulation antishock elastic supporting suspension rack |
| CN105927694B (en) * | 2016-05-01 | 2018-04-06 | 上海大学 | A kind of adjustable negative rigidity mechanism based on time-dependent current magnetic field |
| CN105840707B (en) * | 2016-06-20 | 2017-10-24 | 中国舰船研究设计中心 | Electromagnetic actuator peculiar to vessel |
| CN106594164A (en) * | 2016-11-29 | 2017-04-26 | 中国直升机设计研究所 | Helicopter cockpit vibration absorber assembly and helicopter cockpit with same |
| CN107013618B (en) * | 2017-05-19 | 2023-06-20 | 南京航空航天大学 | Rigidity-adjustable dynamic vibration absorber |
| CN107606018B (en) * | 2017-10-19 | 2019-06-14 | 西安交通大学 | A kind of hourglass shape electromagnetism vibration isolator |
| CN108506413A (en) * | 2018-04-16 | 2018-09-07 | 沈阳远大装备科技有限公司 | A kind of quasi- zero stiffness earthquake isolating equipment |
| CN109648354B (en) * | 2018-12-13 | 2023-07-25 | 广东工业大学 | Rigid-flexible coupling platform capable of adjusting rigidity in middle and motion platform |
| CN109798314B (en) * | 2019-02-22 | 2021-06-08 | 沈阳远大装备科技有限公司 | Metal vibration isolator and heat treatment method of bent sheet thereof |
| CN112069614A (en) * | 2020-08-19 | 2020-12-11 | 中国人民解放军92578部队 | Vibration absorber optimization method and system, terminal equipment and storage medium |
| CN112032244B (en) * | 2020-08-19 | 2022-07-05 | 北京控制工程研究所 | Variable-rigidity variable-damping mounting bracket of actuating mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3675475A (en) * | 1970-05-25 | 1972-07-11 | Sperry Rand Corp | Material testing device for the continuous measurement of stress relaxation |
| CN1042974A (en) * | 1988-11-24 | 1990-06-13 | 清华大学 | Continuous adjustable method for vibration of electromagnetic type spring rate and vibration absorber |
| JP2001323948A (en) * | 2000-05-15 | 2001-11-22 | Toyota Industries Corp | Electromagnetic clutch mechanism and vehicular auxiliary machine having the same mechanism |
| CN102352905A (en) * | 2011-10-12 | 2012-02-15 | 黄强 | Shock absorber capable of improving generating efficiency by using suspension magnets under shock absorption working condition |
| CN103161876A (en) * | 2011-12-14 | 2013-06-19 | 北汽福田汽车股份有限公司 | Suspension |
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2013
- 2013-11-29 CN CN201310624994.XA patent/CN103615488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3675475A (en) * | 1970-05-25 | 1972-07-11 | Sperry Rand Corp | Material testing device for the continuous measurement of stress relaxation |
| CN1042974A (en) * | 1988-11-24 | 1990-06-13 | 清华大学 | Continuous adjustable method for vibration of electromagnetic type spring rate and vibration absorber |
| JP2001323948A (en) * | 2000-05-15 | 2001-11-22 | Toyota Industries Corp | Electromagnetic clutch mechanism and vehicular auxiliary machine having the same mechanism |
| CN102352905A (en) * | 2011-10-12 | 2012-02-15 | 黄强 | Shock absorber capable of improving generating efficiency by using suspension magnets under shock absorption working condition |
| CN103161876A (en) * | 2011-12-14 | 2013-06-19 | 北汽福田汽车股份有限公司 | Suspension |
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| CN103615488A (en) | 2014-03-05 |
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