CN104776148B - Viscous fluid damper for on-orbit vibration isolation of spatial load - Google Patents
Viscous fluid damper for on-orbit vibration isolation of spatial load Download PDFInfo
- Publication number
- CN104776148B CN104776148B CN201510154654.4A CN201510154654A CN104776148B CN 104776148 B CN104776148 B CN 104776148B CN 201510154654 A CN201510154654 A CN 201510154654A CN 104776148 B CN104776148 B CN 104776148B
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- China
- Prior art keywords
- spring piece
- screw
- sealing ring
- jackshaft
- wavy spring
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
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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 viscous fluid damper for the on-orbit vibration isolation of a spatial load, and belongs to the technical field of space optics. The technical problems of difficulty in sealing, low flexural rigidity, poor environmental adaptability, insensitivity to spatial micro vibration and inconsistency between performance under a spatial zero-gravity condition and performance on the ground in the prior art are solved. A wave spring piece I is fixedly connected to the top end of an intermediate shaft through a damping screw I, wherein an upper oil cavity is formed between the wave spring piece I and an end cover; the wave spring piece I is sealed with the upper oil cavity through an O-shaped sealing ring I1, and is sealed with the upper end of the intermediate shaft through an O-shaped sealing ring I2; a wave spring piece II is fixedly connected to the bottom end of the intermediate shaft through a damping screw II; a lower oil cavity is formed between the wave spring piece II and a base; the wave spring piece II is sealed with the lower oil cavity through an O-shaped sealing ring II1, and is sealed with the bottom end of the intermediate shaft through an O-shaped sealing ring II2.
Description
Technical field
The invention belongs to space optics technical field is and in particular to a kind of viscous liquid for the in-orbit vibration isolation of space loading
Antivibrator.
Background technology
With the development of space technology, there is heavy caliber, high-resolution space optical remote sensor have more and more important
Business and military value.But spaceborne posture adjustment gyro, counteraction flyback, Stretching of solar wings mechanism, cooling pump etc. are transported
Pointing accuracy and the image quality that can greatly reduce space optical remote sensor for vibrations that dynamic facility produces, and spaceborne
Smart devices also can be unable to reach expected service behaviour because of the impact of vibration.At present, carry out vibration isolation frequently with isolation mounting.
But vibration isolation of the prior art dress child exist be difficult to seal, bending rigidity is low, environmental suitability is poor, for space
The technological deficiency that micro-vibration is insensitive and performance under the below-G conditions of space is inconsistent with performance on the ground.
Content of the invention
It is an object of the invention to provide a kind of viscous liquid antivibrator for the in-orbit vibration isolation of space loading, solve existing skill
Art is difficult to seal, bending rigidity is low, environmental suitability is poor, insensitive and under the below-G conditions of space for space micro-vibration
The performance technical problem inconsistent with performance on the ground.
The viscous liquid antivibrator that the present invention is used for the in-orbit vibration isolation of space loading includes base, wavy spring piece, connection
Frame, outer tube, o type sealing ring1, o type sealing ring2, damping screw, end cap, wavy spring piece, inner core, jackshaft, o type sealing
Circle1, o type sealing ring2And damping screw；
Wavy spring piece is fixedly connected on the top of jackshaft by damping screw, between wavy spring piece and end cap
Form upper oil cavitie, wavy spring piece passes through o type sealing ring with upper oil cavitie1Sealing, wavy spring piece is led to the upper end of jackshaft
Cross o type sealing ring2Sealing；Wavy spring piece is fixedly connected on the bottom of jackshaft, wavy spring piece by damping screw
Form lower oil cavitie and base between, wavy spring piece passes through o type sealing ring with lower oil cavitie1Sealing, wavy spring piece
Pass through o type sealing ring with the bottom of jackshaft2Sealing；
In inner core, link and jackshaft are mode connects for screw to jackshaft, and link is mode connects for screw with outer tube, end cap
With the upper surface mode connects for screw of inner core, the lower surface mode connects for screw of base and inner core, the top center of end cap is sealed by screw
Close oil pocket, at the bottom center of base, pass through screw closure lower oil cavitie.
The center of described jackshaft has damping fluid passage.
All have through hole, and the through hole of damping screw and damping in the center of described damping screw and damping screw
The through hole of screw and the damping fluid channel connection of jackshaft.
Described end cap inwall presents convex arch.
Described base inner wall is in sunken arcs shape.
The operation principle of the present invention: vibration isolation object is connected by screw the upper surface in outer tube, wavy spring piece and end cap
Between be upper oil cavitie, between wavy spring piece and base be lower oil cavitie, upper oil cavitie pass through damping screw through hole, central shaft resistance
Buddhist nun's liquid passage is connected with lower oil cavitie with the through hole of damping screw；When mode connects for screw is in the vibration isolation vibrating objects of outer tube upper surface
When, vibration is transferred to jackshaft by link, forces jackshaft to move axially in reciprocal fashion, and then drives shape spring leaf and ripple
Shape spring leaf up-down vibration, now the volume of upper oil cavitie and lower oil cavitie all change, make pressurized upper oil cavitie or lower oil cavitie
Internal viscosity liquid flows through the damping fluid through-hole of central shaft, thus producing damping.The present invention pass through change wavy spring piece thickness,
The size of diameter, waveform quantity and waveform circular arc changing the rigidity of antivibrator, by changing the damping fluid passage of jackshaft
The aperture of aperture and damping screw is changing the damped coefficient of antivibrator.
The beneficial technique effect of the present invention: upper oil cavitie and lower oil cavitie are passed through o type sealing ring and the sealing of o type by the present invention
Circle sealing, greatly reduces the possibility that damping fluid leaks；End cap in the present invention and base inner wall are circular arc, and respectively
Have tapped through hole on end cap top and base bottom, facilitate operator to input damping fluid into upper oil cavitie and lower oil cavitie, with
When upper oil cavitie and lower oil cavitie in bubble be also easily drained, efficiently avoid in upper oil cavitie or lower oil cavitie generation bubble；And
This antivibrator has that component is few, structure is simple, easily fabricated, and reliability is high, damped coefficient is big, axial rigidity is low, and has relatively
High torsional rigidity and the advantage of bending rigidity.
Brief description
Fig. 1 is used for the main view perspective view of the viscous liquid antivibrator of the in-orbit vibration isolation of space loading for the present invention；
Fig. 2 is used for the top view of the viscous liquid antivibrator of the in-orbit vibration isolation of space loading for the present invention；
Fig. 3 is used for the sectional view along a-a of the viscous liquid antivibrator of the in-orbit vibration isolation of space loading for the present invention；
Fig. 4 is used for the front view of the wavy spring piece of viscous liquid antivibrator of the in-orbit vibration isolation of space loading for the present invention；
Fig. 5 is used for the top view of the wavy spring piece of viscous liquid antivibrator of the in-orbit vibration isolation of space loading for the present invention；
Wherein, 1, base, 2, wavy spring piece, 3, link, 4, outer tube, 5, o type sealing ring1, 6, o type sealing ring
ⅰ2, 7, damping screw, 8, end cap, 9, wavy spring piece, 10, inner core, 11, jackshaft, 12, o type sealing ring1, 13, o type close
Seal2, 14, damping screw.
Specific embodiment
The present invention is further elaborated below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5, the present invention is used for the viscous liquid of the in-orbit vibration isolation of space loading
Body antivibrator includes base 1, wavy spring piece 2, link 3, outer tube 4, o type sealing ring15th, o type sealing ring26th, damp spiral shell
Nail 7, end cap 8, wavy spring piece 9, inner core 10, jackshaft 11, o type sealing ring112nd, o type sealing ring213 and damping spiral shell
Nail 14；
Wavy spring piece 9 is fixedly connected on the top of jackshaft 11, wavy spring piece 9 and end cap by damping screw 7
Form upper oil cavitie, wavy spring piece 9 passes through o type sealing ring with upper oil cavitie between 815 sealings, wavy spring piece 9 and jackshaft
Upper end pass through o type sealing ring26 sealings；Wavy spring piece 2 is fixedly connected on jackshaft 11 by damping screw 14
Bottom, forms lower oil cavitie between wavy spring piece 2 and base 1, wavy spring piece 2 passes through o type sealing ring with lower oil cavitie112 sealings, wavy spring piece 2 passes through o type sealing ring with the bottom of jackshaft 11213 sealings；
In inner core 10, link 3 jackshaft 11 is mode connects for screw to jackshaft 11, and link 3 is with outer tube 4 for screw even
Connect, the upper surface mode connects for screw of end cap 8 and inner core 10, the lower surface mode connects for screw of base 1 and inner core 10, in the top of end cap 8
Pass through screw closure upper oil cavitie at the heart, at the bottom center of base 1, pass through screw closure lower oil cavitie.
11 centers of described jackshaft have damping fluid passage.
All have through hole in the center of described damping screw 7 and damping screw 14, and the through hole of damping screw 7 and
The through hole of damping screw 14 and the damping fluid channel connection of jackshaft.
Described end cap 8 inwall presents convex arch.
Described base 1 inwall is in sunken arcs shape.
Claims (5)
1. it is used for the viscous liquid antivibrator of the in-orbit vibration isolation of space loading it is characterised in that including base (1), wavy spring piece
(2), link (3), outer tube (4), o type sealing ring1(5), o type sealing ring2(6), damping screw (7), end cap (8), ripple
Shape spring leaf (9), inner core (10), jackshaft (11), o type sealing ring1(12), o type sealing ring2And damping screw (13)
(14)；
Wavy spring piece (9) is fixedly connected on the top of jackshaft (11) by damping screw (7), wavy spring piece (9) with
Form upper oil cavitie, wavy spring piece (9) passes through o type sealing ring with upper oil cavitie between end cap (8)1(5) seal, wavy spring piece
(9) pass through o type sealing ring with the upper end of jackshaft2(6) seal；It is solid that wavy spring piece (2) passes through damping screw (14)
Surely it is connected between the bottom of axle (11), between wavy spring piece (2) and base (1), form lower oil cavitie, wavy spring piece
(2) pass through o type sealing ring with lower oil cavitie1(12) seal, wavy spring piece (2) passes through o type with the bottom of jackshaft (11)
Sealing ring2(13) seal；
In inner core (10), link (3) and jackshaft (11) are mode connects for screw to jackshaft (11), and link (3) and outer tube
(4) it is mode connects for screw, the upper surface mode connects for screw of end cap (8) and inner core (10), the lower surface screw of base (1) and inner core (10)
Connect, screw closure upper oil cavitie is passed through in the top center of end cap (8), passes through under screw closure at the bottom center of base (1)
Oil pocket.
2. the viscous liquid antivibrator for the in-orbit vibration isolation of space loading according to claim 1 is it is characterised in that described
The center of jackshaft (11) has damping fluid passage.
3. the viscous liquid antivibrator for the in-orbit vibration isolation of space loading according to claim 1 is it is characterised in that in institute
State damping screw (7) and the center of damping screw (14) all has through hole, and the through hole of damping screw (7) and damping spiral shell
The through hole of nail (14) and the damping fluid channel connection of jackshaft.
4. the viscous liquid antivibrator for the in-orbit vibration isolation of space loading according to claim 1 is it is characterised in that described
End cap (8) inwall presents convex arch.
5. the viscous liquid antivibrator for the in-orbit vibration isolation of space loading according to claim 1 is it is characterised in that described
Base (1) inwall is in sunken arcs shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154654.4A CN104776148B (en) | 2015-04-02 | 2015-04-02 | Viscous fluid damper for on-orbit vibration isolation of spatial load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154654.4A CN104776148B (en) | 2015-04-02 | 2015-04-02 | Viscous fluid damper for on-orbit vibration isolation of spatial load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104776148A CN104776148A (en) | 2015-07-15 |
| CN104776148B true CN104776148B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154654.4A Active CN104776148B (en) | 2015-04-02 | 2015-04-02 | Viscous fluid damper for on-orbit vibration isolation of spatial load |
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| CN (1) | CN104776148B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143601B (en) * | 2017-06-01 | 2019-03-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of liquid condenser |
| CN110966330B (en) * | 2018-09-30 | 2021-08-20 | 上海微电子装备（集团）股份有限公司 | Combined reed, design method thereof and motion platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904002A (en) * | 1973-06-22 | 1975-09-09 | Bilstein August Fa | Hydropneumatic vibration damper |
| EP0816140A1 (en) * | 1996-06-27 | 1998-01-07 | Lemförder Metallwaren AG | Upper strut mount for a motor vehicle suspension |
| CN1560490A (en) * | 2004-02-19 | 2005-01-05 | 川 郭 | Pressure controlled variable damping vibration attenuator |
| CN101555923A (en) * | 2009-05-27 | 2009-10-14 | 陈蕊建 | Shock absorber piston assembly and self-adjusting damping shock absorber comprising same |
| CN202228582U (en) * | 2011-09-12 | 2012-05-23 | 吕再昌 | Piston type liquid and gas buffer |
-
2015
- 2015-04-02 CN CN201510154654.4A patent/CN104776148B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904002A (en) * | 1973-06-22 | 1975-09-09 | Bilstein August Fa | Hydropneumatic vibration damper |
| EP0816140A1 (en) * | 1996-06-27 | 1998-01-07 | Lemförder Metallwaren AG | Upper strut mount for a motor vehicle suspension |
| CN1560490A (en) * | 2004-02-19 | 2005-01-05 | 川 郭 | Pressure controlled variable damping vibration attenuator |
| CN101555923A (en) * | 2009-05-27 | 2009-10-14 | 陈蕊建 | Shock absorber piston assembly and self-adjusting damping shock absorber comprising same |
| CN202228582U (en) * | 2011-09-12 | 2012-05-23 | 吕再昌 | Piston type liquid and gas buffer |
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| Publication number | Publication date |
|---|---|
| CN104776148A (en) | 2015-07-15 |
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