CN104343876B - Satellite flywheel leaf spring assembly power bump leveller - Google Patents
Satellite flywheel leaf spring assembly power bump leveller Download PDFInfo
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- CN104343876B CN104343876B CN201410572288.XA CN201410572288A CN104343876B CN 104343876 B CN104343876 B CN 104343876B CN 201410572288 A CN201410572288 A CN 201410572288A CN 104343876 B CN104343876 B CN 104343876B
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- Prior art keywords
- leaf spring
- bump leveller
- assembly power
- base plate
- flywheel
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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
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of satellite flywheel leaf spring assembly power bump leveller, wherein, described connection seat is fixed on base plate, described guide rail is fixed on the one end connecting seat, described ball-screw is arranged on guide rail, described ball nut slide block is arranged on ball-screw, and described transfer block is arranged on ball nut slide block；Described leaf spring assemblies includes two pack springs, and one end of two pack springs is connected to the both sides of absorbing mass, and the other end of two pack springs is connected on transfer block and base plate.The present invention uses light-weight design, utilize cluster spring frequency modulation, flywheel vibration control can be suppressed in relatively low magnitude according to the change adjustment structure natural frequency of Speed of Reaction Wheels, it is ensured that high accuracy sensitive load stability in orbit and reliability on star, there is frequency-tracking speed fast, damping property is excellent, simple in construction, and reliability is high, easy to assembly, the advantage of low cost of manufacture.
Description
Technical field
The present invention relates to a kind of dynamic vibration absorber, in particular it relates to a kind of satellite flywheel leaf spring assembly power absorbing
Device.
Background technology
Along with China's satellite develops towards high accuracy, high stability, long-life direction, its sensitive load pair carried
Micro-vibration environment of satellite platform requires more and more higher.Flywheel vibration is the master affecting Satellite Payloads performance indications
Wanting factor, therefore the vibration of suppression flywheel seems the most urgent.Conventional flywheel vibration control method have damping vibration attenuation,
Structure rigidifying, vibration isolation etc..Damping vibration attenuation only resonance time effect obvious；Structure rigidifying can increase satellite quality；
Passive vibration isolation reduces the coupling stiffness of load and platform, reduces load pointing accuracy；Active vibration isolation energy consumption is high, stable
Property is poor.
Through the literature search of prior art is found, there is presently no the leaf spring assembly power for satellite flywheel and inhale
Shake device, and the design constraint of leaf spring assembly power bump leveller mainly includes three aspects: one is intended to expand dynamic vibration absorber
Frequency-tuning range；The vibratory response amplitude of two flywheel installing plates when being intended to reduce in orbit；Three is to realize inhaling
The optimization design of mass and the spring envelope size of shaking, increases the stability of arrangement works performance, reliability and safety
Property.
To this end, how a kind of frequency-tuning range width is provided, assembling is simple, cost is relatively low, the leaf spring of excellent performance
Assembly power bump leveller, becomes problem demanding prompt solution in the industry.
Summary of the invention
For above-mentioned deficiency present in prior art, the invention provides a kind of satellite flywheel leaf spring assembly power
Bump leveller, this satellite flywheel leaf spring assembly power bump leveller, have frequency-tuning range width, good damping result,
The features such as light weight, size are little, assembling is simple, low cost of manufacture, with solve satellite in orbit time sensitive load
The technical problem that vibratory response amplitude micro-to platform is big.
The present invention is achieved through the following technical solutions.
A kind of satellite flywheel leaf spring assembly power bump leveller, including: base plate, absorbing mass, straight line module list
Unit and leaf spring assemblies, described straight line module group unit includes guide rail, ball screw, ball nut slide block, connection
Seat and transfer block, wherein, described connection seat is fixed on base plate, and described guide rail is fixed on the one end connecting seat,
Described ball-screw is arranged on guide rail, and described ball nut slide block is arranged on ball-screw, and described transfer block sets
It is placed on ball nut slide block；Described leaf spring assemblies includes that two pack springs, one end of two pack springs connect respectively
Being connected on the both sides of absorbing mass, the other end of two pack springs is connected on transfer block and base plate.
Preferably, also include that motor, described motor are fixed on base plate, and be arranged at the other end connecting seat；Wherein,
Described connection seat is connected with the stator of motor by transfer block, and described ball-screw is connected by the projecting shaft of shaft coupling with motor
Connect, and then the rotary motion realizing motor output shaft is converted to the translational motion of ball nut slide block.
Preferably, each pack spring all includes two symmetrically arranged leaf springs and is arranged at the axis of rolling at leaf spring two ends
Holding, the rolling bearing at described leaf spring two ends is affixed with absorbing mass, base or transfer block respectively by bearing block.
Preferably, described leaf spring is semicircular structure, and the two ends of leaf spring protrude horizontally up auricle, wherein, either end respectively
Auricle is provided with at least one connecting hole, and described connecting hole is affixed with the rotating shaft of rolling bearing, the rotating shaft two ends of rolling bearing
Coordinating with the inner ring of rolling bearing, the outer ring of rolling bearing coordinates with bearing block, described bearing block be fixed in absorbing mass,
On base or transfer block.
Preferably, described flat spring material is M65.
Preferably, described absorbing mass is provided with multiple installing hole for fixed bearing block.
Preferably, described base plate includes bottom panel and is perpendicular to longitudinal plate that bottom panel extends, described connection
Seat, motor and flat spring are individually fixed on longitudinal plate of base plate；The bottom panel of described base plate is provided with some
The individual connecting hole for connecting satellite flywheel cellular board.
Preferably, described absorbing mass uses rustless steel or aluminum alloy material.
The satellite flywheel leaf spring assembly power bump leveller that the present invention provides, uses the principle of machinery frequency modulation to set
Meter, can carry out the regulation of structural natural frequencies, and then reach optimal flywheel vibration damping effect according to the change of Speed of Reaction Wheels
Really；Its concrete frequency modulation principle is as described below: driven by motor ball screw turns, adjusts the position of ball nut slide block,
And then the angle of change leaf spring end points line, i.e. the vertical equivalent stiffness of scalable absorbing mass sheet spring structure,
The natural frequency of adjustment structure.
Owing to have employed above technical scheme, the present invention compared with prior art, has the advantages that:
First, satellite flywheel leaf spring assembly power bump leveller provided by the present invention, have employed machinery frequency modulation technology,
By motor adjustment structure vertical equivalent stiffness, having degree of regulation high, fast response time, tuning range is big, knot
Structure is simple, and stability is high, the feature being easily controlled.
Secondly, satellite flywheel leaf spring assembly power bump leveller provided by the present invention, have employed numerical optimization and knot
Structure optimal design idea, damping property is excellent, and easy to assembly, required installing space is little.
Again, the present invention provide satellite flywheel leaf spring assembly power bump leveller, take into full account that different model flies
The vibration damping demand of wheel, as long as carrying out adaptation to the relative dimensions of base plate, leaf spring and absorbing mass, so that it may
To meet the vibration damping demand of different model flywheel, there is higher versatility, have a extensive future.
The flywheel leaf spring assembly power bump leveller that the present invention provides, is that a kind of by energy transfer, attenuation systems is micro-shakes
The device of dynamic response, when bump leveller natural frequency is tuned near flywheel frequency of vibration, leaf spring absorbing mass
Structure will absorb major part flywheel vibrational energy, thus reduce the purpose of flywheel installing plate vibration level.Pass through
The test such as mode, vibration proves, a kind of satellite flywheel leaf spring assembly power bump leveller of the present invention has reached vibration damping
Excellent performance, light weight, size are little, simple in construction, easy to assembly, the purpose of low cost of manufacture, as long as to portion
Point size carries out adaptation, it becomes possible to meets the vibration damping demand of different sensitive load, thus improves this type and move
The adaptability of power bump leveller.
Accompanying drawing explanation
The detailed description made non-limiting example with reference to the following drawings by reading, other of the present invention is special
Levy, purpose and advantage will become more apparent upon:
Fig. 1 is the Facad structure schematic diagram of satellite flywheel leaf spring assembly power bump leveller provided by the present invention；
Fig. 2 is the oblique geodesic structure schematic diagram of satellite flywheel leaf spring assembly power bump leveller provided by the present invention；
Fig. 3 is the scheme of installation of satellite flywheel leaf spring assembly power bump leveller provided by the present invention.
In figure: 1 is absorbing mass, and 2 is bearing block, and 3 is rolling bearing, 4 is rotating shaft, and 5 is leaf spring, 6
For base plate, 7 is motor, and 8 for connecting seat, and 9 is shaft coupling, and 10 is guide rail, and 11 is ball-screw, 12
For ball nut slide block, 13 is transfer block, and 14 is flywheel, and 15 is flywheel-bracket, and 16 is cellular board.
Detailed description of the invention
Below embodiments of the invention are elaborated: the present embodiment carries out reality under premised on technical solution of the present invention
Execute, give detailed embodiment and concrete operating process.It should be pointed out that, the ordinary skill people to this area
For Yuan, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into this
Bright protection domain.
Please refer to Fig. 1 to Fig. 3.
Present embodiments provide a kind of satellite flywheel leaf spring assembly power bump leveller, including: base plate, absorbing quality
Block, straight line module group unit and leaf spring assemblies, described straight line module group unit includes guide rail, ball screw, ball
Nut slider, connection seat and transfer block, wherein, described connection seat is fixed on base plate, and described guide rail is fixed on
Connecting one end of seat, described ball-screw is arranged on guide rail, and described ball nut slide block is arranged on ball-screw,
Described transfer block is arranged on ball nut slide block；Described leaf spring assemblies includes two pack springs, two pack springs
One end be connected to the both sides of absorbing mass, the other end of two pack springs is connected to transfer block and the end
On plate.
Further, also include that motor, described motor are fixed on base plate, and be arranged at the other end connecting seat；Its
In, described connection seat is connected with the stator of motor by transfer block, and described ball-screw passes through stretching out of shaft coupling and motor
Axle connects, and then the rotary motion realizing motor output shaft is converted to the translational motion of ball nut slide block.
Further, each pack spring all includes two symmetrically arranged leaf springs and is arranged at the rolling at leaf spring two ends
Bearing, the rolling bearing at described leaf spring two ends is affixed with absorbing mass, base or transfer block respectively by bearing block.
Further, described leaf spring is semicircular structure, and the two ends of leaf spring protrude horizontally up auricle respectively, wherein, arbitrary
The auricle of end is provided with at least one connecting hole, and described connecting hole is affixed with the rotating shaft of rolling bearing, the rotating shaft of rolling bearing
Two ends coordinate with the inner ring of rolling bearing, and the outer ring of rolling bearing coordinates with bearing block, and described bearing block is fixed in absorbing matter
In gauge block, base or transfer block.
Further, described flat spring material is M65.
Further, described absorbing mass is provided with multiple installing hole for fixed bearing block.
Further, described base plate includes bottom panel and is perpendicular to longitudinal plate that bottom panel extends, described company
Joint chair, motor and flat spring are individually fixed on longitudinal plate of base plate；If the bottom panel of described base plate is provided with
Dry for connecting the connecting hole of satellite flywheel cellular board.
Further, described absorbing mass uses rustless steel or aluminum alloy material.
Below in conjunction with the accompanying drawings the present embodiment is described further.
As depicted in figs. 1 and 2, the satellite flywheel leaf spring assembly power bump leveller that the present embodiment provides, including:
Absorbing mass, bearing block, rolling bearing, rotating shaft, leaf spring, base plate, motor, connection seat, shaft coupling, lead
Rail, ball-screw, ball nut slide block, transfer block and some securing members.
Further, guide rail, ball screw, ball nut slide block, connection seat and transfer block composition straight line module
Unit, the rotary motion of motor output shaft is converted to the translational motion of ball nut slide block by straight line module group unit.Directly
The connection seat of line module is provided with some installing holes, is connected with the stator of motor by transfer block；Ball-screw is by connection
Axial organ and motor projecting shaft connect.
Further, base plate is provided with some groups of connecting holes, can be simultaneously connected with connection seat, motor, flat spring and
The cellular board of satellite flywheel.
Further, described leaf spring is semicircle, and both ends horizontal stretches out auricle, and auricle is provided with some connecting holes,
The material of leaf spring is M65.Leaf spring two ends are hinged with absorbing mass, transfer block or base plate respectively, its articulated manner
As described below: with screw by affixed to leaf spring auricle and rotating shaft, rotating shaft two ends and rolling bearing inner ring coordinate, the axis of rolling
Bearing outer-ring and bearing block coordinate, and bearing block is fixed on absorbing mass, transfer block or base plate.
Specifically, absorbing mass is provided with some installing holes, is used for installing bearing block, can be selected for not as required
Rust steel or aluminium alloy are processed into.
As it is shown on figure 3, the satellite flywheel leaf spring assembly power bump leveller that the present embodiment provides, it is arranged on cellular board
On, relative with the installation site of flywheel-bracket.During flywheel operating, flywheel vibration is delivered to honeycomb by flywheel-bracket
On plate.First the satellite flywheel machinery frequency conversion type dynamic vibration absorber of the present invention regulates leaf spring-absorbing quality structure
Natural frequency is to flywheel frequency of vibration, and flywheel vibrational energy will be transferred to this structure, thus reduces the vibration of cellular board
Response amplitude, reduces the purpose of the micro-vibratory response of flywheel.
The satellite flywheel leaf spring assembly power bump leveller that the present embodiment provides uses the principle of machinery frequency modulation to set
Meter, can carry out the regulation of structural natural frequencies, and then reach optimal flywheel vibration damping effect according to the change of Speed of Reaction Wheels
Really；Its concrete frequency modulation principle is as described below: driven by motor ball screw turns, adjusts the position of ball nut slide block,
And then the angle of change leaf spring end points line, i.e. the vertical equivalent stiffness of scalable absorbing mass sheet spring structure,
The natural frequency of adjustment structure.
The satellite flywheel leaf spring assembly power bump leveller that the present embodiment provides has frequency-tuning range width, vibration damping effect
The best, light weight, size are little, assembling is simple, low cost of manufacture, the suitability is strong, versatility is high feature.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in
Stating particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims,
This has no effect on the flesh and blood of the present invention.
Claims (8)
1. a satellite flywheel leaf spring assembly power bump leveller, including: base plate, absorbing mass with
And leaf spring assemblies, it is characterised in that also include: straight line module group unit, described straight line module group unit bag
Include guide rail, ball screw, ball nut slide block, connect seat and transfer block, wherein, described connection seat
Being fixed on base plate, described guide rail is fixed on the one end connecting seat, and described ball-screw is arranged on guide rail,
Described ball nut slide block is arranged on ball-screw, and described transfer block is arranged on ball nut slide block；
Described leaf spring assemblies includes that two pack springs, one end of two pack springs are connected to absorbing mass
Both sides, the other end of two pack springs is connected on transfer block and base plate.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 1, its feature exists
In, also include that motor, described motor are fixed on base plate, and be arranged at the other end connecting seat；Wherein, institute
Stating connection seat to be connected with the stator of motor by transfer block, described ball-screw passes through stretching out of shaft coupling and motor
Axle connects, and then the rotary motion realizing motor output shaft is converted to the translational motion of ball nut slide block.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 1 and 2, it is special
Levying and be, each pack spring all includes two symmetrically arranged leaf springs and is arranged at the rolling at leaf spring two ends
Bearing, the rolling bearing at described leaf spring two ends is solid with absorbing mass, base or transfer block respectively by bearing block
Connect.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 3, its feature exists
In, described leaf spring is semicircular structure, and the two ends of leaf spring protrude horizontally up auricle, wherein, the ear of either end respectively
Sheet is provided with at least one connecting hole, and described connecting hole is affixed with the rotating shaft of rolling bearing, the rotating shaft of rolling bearing
Two ends coordinate with the inner ring of rolling bearing, and the outer ring of rolling bearing coordinates with bearing block, and described bearing block is fixed in
In absorbing mass, base or transfer block.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 4, its feature exists
In, described flat spring material is M65.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 1 and 2, it is special
Levying and be, described absorbing mass is provided with multiple installing hole for fixed bearing block.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 6, its feature exists
In, described absorbing mass uses rustless steel or aluminum alloy material.
Satellite flywheel leaf spring assembly power bump leveller the most according to claim 1 and 2, it is special
Levying and be, described base plate includes bottom panel and is perpendicular to longitudinal plate that bottom panel extends, described company
Joint chair, motor and flat spring are individually fixed on longitudinal plate of base plate；In the bottom panel of described base plate
It is provided with several for the connecting hole connecting satellite flywheel cellular board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572288.XA CN104343876B (en) | 2014-10-23 | 2014-10-23 | Satellite flywheel leaf spring assembly power bump leveller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572288.XA CN104343876B (en) | 2014-10-23 | 2014-10-23 | Satellite flywheel leaf spring assembly power bump leveller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104343876A CN104343876A (en) | 2015-02-11 |
| CN104343876B true CN104343876B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410572288.XA Active CN104343876B (en) | 2014-10-23 | 2014-10-23 | Satellite flywheel leaf spring assembly power bump leveller |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828987B (en) * | 2016-11-16 | 2020-07-14 | 上海卫星工程研究所 | Umbrella type rigidity adjusting mechanism based on leaf spring |
| CN107504115B (en) * | 2017-07-11 | 2018-12-25 | 中国电子科技集团公司第三十八研究所 | A kind of adjustable bump leveller of three-dimensional frequency |
| CN109505906B (en) * | 2018-12-20 | 2024-06-04 | 江苏阳明船舶装备制造技术有限公司 | A bumper shock absorber for automatic ultrasonic impact eliminates welding residual stress machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2030267A (en) * | 1978-09-21 | 1980-04-02 | Gendala M | Leaf-spring assembly |
| US4998749A (en) * | 1989-05-25 | 1991-03-12 | Leland Bockewitz | Suspension for smooth ride with good handling control of heavy load vehicles |
| CN102518741A (en) * | 2011-12-28 | 2012-06-27 | 中国科学技术大学 | Passive low-frequency vibration isolator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5962741A (en) * | 1982-09-30 | 1984-04-10 | Hino Motors Ltd | Leaf suspension apparatus |
| JP2005096493A (en) * | 2003-09-22 | 2005-04-14 | Hino Motors Ltd | Suspension device |
-
2014
- 2014-10-23 CN CN201410572288.XA patent/CN104343876B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2030267A (en) * | 1978-09-21 | 1980-04-02 | Gendala M | Leaf-spring assembly |
| US4998749A (en) * | 1989-05-25 | 1991-03-12 | Leland Bockewitz | Suspension for smooth ride with good handling control of heavy load vehicles |
| CN102518741A (en) * | 2011-12-28 | 2012-06-27 | 中国科学技术大学 | Passive low-frequency vibration isolator |
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| Publication number | Publication date |
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| CN104343876A (en) | 2015-02-11 |
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