CN104265829B - Possess hinge and the integrated shock absorber of vibration isolation function and vibration isolation system - Google Patents
Possess hinge and the integrated shock absorber of vibration isolation function and vibration isolation system Download PDFInfo
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- CN104265829B CN104265829B CN201410472611.6A CN201410472611A CN104265829B CN 104265829 B CN104265829 B CN 104265829B CN 201410472611 A CN201410472611 A CN 201410472611A CN 104265829 B CN104265829 B CN 104265829B
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- Prior art keywords
- vibration isolation
- shock absorber
- hinge
- connecting section
- flexible
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Classifications
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- 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
Abstract
The invention discloses and a kind of possess hinge and the integrated shock absorber of vibration isolation function and vibration isolation system, shock absorber includes stiff connecting section and flexible vibration isolation part, stiff connecting section is positioned at the two ends of flexible vibration isolation part, flexible vibration isolation part and the one-body molded processing of stiff connecting section, when the integrated shock absorber possessing hinge and vibration isolation function makees vibration isolator: flexible vibration isolation part is for isolating the transmission of vibration, and stiff connecting section is for shock absorber and by vibration isolation object and the connection on basis；When the integrated shock absorber possessing hinge and vibration isolation function makees connection hinge, stiff connecting section connection between moving component, flexible vibration isolation part backlash compensation when mechanism kinematic.Present configuration is simple, convenient disassembly, have heat insulating function, and safe and reliable, Non-energy-consumption, can design vibrating isolation system frequency according to by the concrete property of vibration isolation object.
Description
Technical field
The present invention relates to a kind of shock absorber and vibration isolation system, particularly relate to one possess hinge and
The integrated shock absorber of vibration isolation function and vibration isolation system.
Background technology
Along with the development of space technology, performance and the precision of the high-resolution optical load of Seeds of First Post-flight are continuous
Improving, the requirement to the stability of satellite platform is more and more higher, and vibration effect micro-to platform proposes strictly
Requirement, it is necessary to take the measure of vibration suppression to ensure the normal work of satellite load.Vibration isolation can be divided into by
Dynamic vibration isolation, active vibration isolation and active-passive integratedization vibration isolation three kinds, wherein passive vibration isolation technology is by vibration isolation
Add some between body and vibration source and there is the certain elastic and original paper of damping or mechanism to reduce vibration
The effect of transmission, it is adaptable to high-frequency vibration isolation；Active Vibration Isolation is by some motions or intelligence material
Material, uses the method actively controlled, it is achieved vibration suppression, has more preferable adaptability, more excellent static state
Stability, and all have preferable vibration isolating effect with low-frequency range near resonance region；Active-passive integratedization every
Shake technology, its advantage combining passive vibration isolation and active vibration isolation.Both improve the reliability of active vibration isolation,
Also improve the adaptability of passive vibration isolation.
Through finding the literature search of prior art, classical parallel institution Stewart platform is employed
In vibration isolation field, and the high accuracy of this platform six degree of freedom to be realized controls, and needs to make device and put down up and down
Arranging motion hinge between platform, the multiplex ball pivot of people or Hooke's hinge realize being rotationally connected, but ball pivot or tiger
Gram hinge is rigid hinge, and hinge inner exists gap, can produce collision, friction, stuck in the course of the work
Etc. phenomenon, and internal clearance is typically in micron dimension, it is difficult to meet what accurate micro-vibration vibration isolation controlled
Requirement.The integrated shock absorber possessing hinge and vibration isolation function is that a kind of mode utilizing otch makes local just
Property weaken, the component being easily deformed under the effect of power or moment, flexibility can be played in mechanism relatively
Effect.Compared with ball pivot and Hooke's hinge, owing to self there is no the gap in mechanism, it is not necessary to lubrication, fortune
Dynamic steady, without friction and collision.Additionally, due to himself having six degree of freedom elastic stiffness, and all can be certainly
By designing, in the case of active vibration isolation system lost efficacy, it can be continuing with as passive vibration isolation device, carries
The high reliability of system.
Therefore, for the vibration control of satellite platform sensitive load, design one had both considered space flight applicability
It is further contemplated that the shock absorber of reliability, it it is problem demanding prompt solution in the industry.
Summary of the invention
The technical problem to be solved is to provide a kind of integration possessing hinge and vibration isolation function
Shock absorber and vibration isolation system, its simple in construction, convenient disassembly, have heat insulating function, and safety
Reliably, Non-energy-consumption, can according to by vibration isolation object concrete property design vibrating isolation system frequency.
The present invention solves above-mentioned technical problem by following technical proposals: one possess hinge and every
The integrated shock absorber of function of shaking, it is characterised in that described in possess the integration of hinge and vibration isolation function and subtract
The device that shakes includes stiff connecting section and flexible vibration isolation part, and stiff connecting section is positioned at flexible vibration isolation part
Two ends, flexible vibration isolation part and the one-body molded processing of stiff connecting section, when possessing hinge and vibration isolation merit
When the integrated shock absorber of energy makees vibration isolator: flexible vibration isolation part is for isolating the transmission of vibration, and rigidity is even
Connect part for shock absorber and by vibration isolation object and the connection on basis；When possessing hinge and the one of vibration isolation function
When body shock absorber makees connection hinge, stiff connecting section connection between the moving component, flexible every
The part of shaking backlash compensation when mechanism kinematic.
Preferably, the external interface of described stiff connecting section uses threaded.
Preferably, described stiff connecting section is provided with screwed hole, and flexible vibration isolation part is provided with pattern groove.
Preferably, described flexible vibration isolation part designs direction and the width of pattern groove according to different rigidity requirement
Degree so that it is six directional stiffness are the most adjustable.
Preferably, described flexible vibration isolation part all can be freely-movable on six direction.
Preferably, the material of the integrated shock absorber possessing hinge and vibration isolation function described in uses TC4 type titanium
Alloy.
The present invention also provides for a kind of vibration isolation system, it is characterised in that it includes multiple used in parallel
Possess hinge and the integrated shock absorber of vibration isolation function, upper mounting plate, lower platform, start as above
Device, upper mounting plate is connected with by vibration isolation object, by possessing hinge and vibration isolation merit between upper mounting plate and actuator
The integrated shock absorber of energy connects, and actuator is fixing with lower platform to be connected, and lower platform is connected with vibration source basis.
The most progressive effect of the present invention is:
One, this possesses the simple in construction of integrated shock absorber of hinge and vibration isolation function, and volume is little, weight
Gently, easy installation and removal, easily change；
Two, six directional stiffness designs of this integrated shock absorber possessing hinge and vibration isolation function are free, can
Vibrating isolation system frequency is designed according to by the concrete property of vibration isolation object；
Three, this integrated shock absorber possessing hinge and vibration isolation function has heat insulating function, as satellite even
Without individually designed heat-proof device during fitting, be suitable to space environment；
Four, this possesses the integrated shock absorber flexibility as vibration isolation system of hinge and vibration isolation function
Relatively during chain, gapless, it is not necessary to lubrication, stable movement, without friction and collision；
Five, this possesses the integrated shock absorber flexibility as vibration isolation system of hinge and vibration isolation function
Relatively during chain, when active control system lost efficacy, it is possible to use as passive vibration isolation device, improve system can
By property；
Six, this possesses the integrated shock absorber Non-energy-consumption of hinge and vibration isolation function, saves satellite resource.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention possesses the integrated shock absorber of hinge and vibration isolation function.
Fig. 2 is the structural representation of vibration isolation system of the present invention.
Detailed description of the invention
Provide present pre-ferred embodiments below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As it is shown in figure 1, the integrated shock absorber that the present invention possesses hinge and vibration isolation function includes being rigidly connected
Part 1 and flexible vibration isolation part 2, stiff connecting section 1 is positioned at the two ends of flexible vibration isolation part 2,
Flexible vibration isolation part 2 and the one-body molded processing of stiff connecting section 1, when possessing hinge and vibration isolation function
When integration shock absorber makees vibration isolator: flexible vibration isolation part 2, for isolating the transmission of vibration, is rigidly connected
Part 1 is for shock absorber and by vibration isolation object and the connection on basis；When possessing hinge and the one of vibration isolation function
When body shock absorber makees connection hinge, the stiff connecting section 1 connection between moving component, flexible
The vibration isolation part 2 backlash compensation when mechanism kinematic.Stiff connecting section refers to the company at shock absorber two ends
Acting flange, flexible vibration isolation part refers to middle springs circle.
The external interface of described stiff connecting section uses threaded, so increases bonding strength, prevents
Come off.Stiff connecting section 1 is provided with screwed hole 11, and flexible vibration isolation part 2 is provided with pattern groove 21.
Flexible vibration isolation part can be according to the direction of different rigidity requirement design pattern grooves and width so that it is six directions
Rigidity is the most adjustable.Flexible vibration isolation part in axial, translation, rotate, reverse on six-freedom degree
Freely-movable.The material of the integrated shock absorber possessing hinge and vibration isolation function uses TC4 Type Titanium Alloy,
So there is heat insulating function.
Embodiments of the invention are set forth below: in the present embodiment, possess hinge and vibration isolation function
The height of integration shock absorber is 60mm.It is responsible for the flexible vibration isolation part of vibration isolation, is to be at external diameter
30mm, internal diameter are to carry out otch processing on the cylindrical structure of 24mm, and kerf width is designed as
1mm, fillet is all designed in otch turning point, it is ensured that without excessive stresses during shock absorber bending, now integration
Six directional stiffness of shock absorber are respectively 9200N/m, 9200N/m, 12000N/m, 9.6Nm/deg,
9.6Nm/deg, 13Nm/deg.Be responsible for connect stiff connecting section 1 be the length of side be 40mm, thickness
For the cube of 5mm, the most uniform four screwed holes (can be the screwed hole of M5) are with outer
Portion links, and is respectively directed to the situation with or without stiff connecting section 1, calculates damper stiffness, result of calculation
As shown in table 1.Data explanation in table, the stiffness coefficient of flexible vibration isolation part 2 and integrally-built rigidity
Coefficient is very close to, and the two error is within 5%.The rigidity of stiff connecting section 1 design is relatively big, because of
These two kinds of configuration rigidity differences are the least.Therefore, completely can be with the stiffness coefficient generation of flexible vibration isolation part 2
Change the stiffness coefficient that shock absorber is overall.
The flexible vibration isolation part of table 1 contrasts table with overall structure rigidity
As in figure 2 it is shown, vibration isolation system of the present invention include multiple used in parallel possess hinge and every
The integrated shock absorber 4 of function of shaking, upper mounting plate 3, lower platform 6, actuator 5, upper mounting plate 3 with by every
The object that shakes connects, and subtracts by possessing hinge and the integrated of vibration isolation function between upper mounting plate 3 with actuator 5
The device 4 that shakes connects, and actuator 5 is fixing with lower platform 6 to be connected, and lower platform 6 is connected with vibration source basis.Main
Passive vibration isolation system uses classical Stewart platform to realize the vibration isolation of six-freedom degree, its actuator 5
The start forms such as voice coil motor, piezoelectric ceramics can be used.If actuator 5 does not works, vibration-isolating platform is just
Become completely by six integrated shock absorber 4 mechanisms supported in parallel possessing hinge and vibration isolation function,
Now system becomes pure passive vibration isolation platform, improves the reliability of vibration isolation system, effectively utilizes
Space, has higher versatility.
The present invention, compared to prior art, has the following advantages that and good effect:
One, this possesses the simple in construction of integrated shock absorber of hinge and vibration isolation function, and volume is little, weight
Gently, easy installation and removal, easily change；
Two, six directional stiffness designs of this integrated shock absorber possessing hinge and vibration isolation function are free, can
Vibrating isolation system frequency is designed according to by the concrete property of vibration isolation object；
Three, this integrated shock absorber possessing hinge and vibration isolation function has heat insulating function, as satellite even
Without individually designed heat-proof device during fitting, be suitable to space environment；
Four, this possesses the integrated shock absorber flexibility as vibration isolation system of hinge and vibration isolation function
Relatively during chain, gapless, it is not necessary to lubrication, stable movement, without friction and collision；
Five, this possesses the integrated shock absorber flexibility as vibration isolation system of hinge and vibration isolation function
Relatively during chain, when active control system lost efficacy, it is possible to use as passive vibration isolation device, improve system can
By property；
Six, this possesses the integrated shock absorber Non-energy-consumption of hinge and vibration isolation function, saves satellite resource.
Particular embodiments described above, solves the technical problem that the present invention, technical scheme and useful
Effect is further described, and be it should be understood that and the foregoing is only the concrete real of the present invention
Execute example, be not limited to the present invention, all within the spirit and principles in the present invention, that is done appoints
What amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (2)
1. the integrated shock absorber possessing hinge and vibration isolation function, it is characterised in that described in possess hinge and
The integrated shock absorber of vibration isolation function includes stiff connecting section and flexible vibration isolation part, and stiff connecting section is positioned at
The two ends of flexible vibration isolation part, flexible vibration isolation part and the one-body molded processing of stiff connecting section, when possess hinge and
When the integrated shock absorber of vibration isolation function makees vibration isolator: flexible vibration isolation part is for isolating the transmission of vibration, and rigidity is even
Connect part for shock absorber and by vibration isolation object and the connection on basis；When the integration possessing hinge and vibration isolation function subtracts
When the device that shakes makees connection hinge, stiff connecting section connection between moving component, flexible vibration isolation part is for machine
Backlash compensation during structure motion；The external interface of described stiff connecting section uses threaded；Described it is rigidly connected
Part is provided with screwed hole, and flexible vibration isolation part is provided with pattern groove；Described flexible vibration isolation part is according to different firm
The direction of degree Demand Design pattern groove and width so that it is six directional stiffness are the most adjustable；Described flexible vibration isolation part exists
All can be freely-movable on six direction；The material of the described integrated shock absorber possessing hinge and vibration isolation function uses
TC4 Type Titanium Alloy.
2. a vibration isolation system, it is characterised in that it includes multiple used in parallel such as claim 1
Described possess hinge and the integrated shock absorber of vibration isolation function, upper mounting plate, lower platform, actuator, upper mounting plate with
Connected by vibration isolation object, by possessing the integrated shock absorber of hinge and vibration isolation function even between upper mounting plate with actuator
Connecing, actuator is fixing with lower platform to be connected, and lower platform is connected with vibration source basis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472611.6A CN104265829B (en) | 2014-09-16 | 2014-09-16 | Possess hinge and the integrated shock absorber of vibration isolation function and vibration isolation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472611.6A CN104265829B (en) | 2014-09-16 | 2014-09-16 | Possess hinge and the integrated shock absorber of vibration isolation function and vibration isolation system |
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| Publication Number | Publication Date |
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| CN104265829A CN104265829A (en) | 2015-01-07 |
| CN104265829B true CN104265829B (en) | 2016-08-17 |
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| CN201410472611.6A Active CN104265829B (en) | 2014-09-16 | 2014-09-16 | Possess hinge and the integrated shock absorber of vibration isolation function and vibration isolation system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864031B (en) * | 2015-05-18 | 2017-06-13 | 上海交通大学 | Magnetostriction drives active-passive integrated multiple degrees of freedom precise vibration isolation device |
| CN105134866B (en) * | 2015-08-07 | 2017-03-08 | 华中科技大学 | A kind of piezoelectricity active vibration isolation mechanism and its method for reducing vibrational system intrinsic frequency |
| CN105204543B (en) * | 2015-09-15 | 2017-08-01 | 上海交通大学 | A kind of active-passive integrated vibration-isolating platforms of the Stewart of electromagnetic drive |
| CN105508819B (en) * | 2015-12-18 | 2018-01-19 | 中国科学院西安光学精密机械研究所 | A kind of hard and soft integral supporting structure of optical instrument and optical instrument |
| CN105840677B (en) * | 2016-05-20 | 2018-05-04 | 北京空间飞行器总体设计部 | A kind of six degree of freedom self-adapting flexible universal joint |
| CN111003213B (en) * | 2019-12-17 | 2021-03-30 | 中国空间技术研究院 | Satellite vibration elimination method and system |
| CN112943848B (en) * | 2021-01-29 | 2022-08-30 | 重庆大学 | Horizontal six-degree-of-freedom constant-rigidity mechanism |
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|---|---|---|---|---|
| CN201153129Y (en) * | 2008-01-04 | 2008-11-19 | 华南农业大学 | Micro-displacement amplifying device |
| CN102155516A (en) * | 2011-01-24 | 2011-08-17 | 北京航空航天大学 | Eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device |
| CN103062319A (en) * | 2012-12-19 | 2013-04-24 | 哈尔滨工业大学 | Zero-stiffness vibration isolator with two-dimensional flexible hinge angle decoupling characteristic and vibration isolating system |
| CN103982587A (en) * | 2013-02-07 | 2014-08-13 | 上海微电子装备有限公司 | Flexible supporting device and flexible supporting pieces of photoetching machine |
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2014
- 2014-09-16 CN CN201410472611.6A patent/CN104265829B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201153129Y (en) * | 2008-01-04 | 2008-11-19 | 华南农业大学 | Micro-displacement amplifying device |
| CN102155516A (en) * | 2011-01-24 | 2011-08-17 | 北京航空航天大学 | Eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device |
| CN103062319A (en) * | 2012-12-19 | 2013-04-24 | 哈尔滨工业大学 | Zero-stiffness vibration isolator with two-dimensional flexible hinge angle decoupling characteristic and vibration isolating system |
| CN103982587A (en) * | 2013-02-07 | 2014-08-13 | 上海微电子装备有限公司 | Flexible supporting device and flexible supporting pieces of photoetching machine |
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| CN104265829A (en) | 2015-01-07 |
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