CN104976488B - A kind of Three Degree Of Freedom Active Vibration Isolation Platform - Google Patents
A kind of Three Degree Of Freedom Active Vibration Isolation Platform Download PDFInfo
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- CN104976488B CN104976488B CN201510433015.1A CN201510433015A CN104976488B CN 104976488 B CN104976488 B CN 104976488B CN 201510433015 A CN201510433015 A CN 201510433015A CN 104976488 B CN104976488 B CN 104976488B
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- Prior art keywords
- expansion link
- mounting plate
- cantilever
- turning joint
- upper mounting
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- 238000002955 isolation Methods 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of Three Degree Of Freedom Active Vibration Isolation Platform, including upper mounting plate, lower platform, the first expansion link, the second expansion link, the 3rd expansion link, cantilever and crossbeam；Described the first expansion link, the lower end of the 3rd expansion link are connected with lower platform by turning joint respectively, and the second expansion link is fixedly mounted on lower platform；The upper end of the first described expansion link is connected with the bottom of upper mounting plate one end by universal coupling, the other end of described upper mounting plate is connected with cantilever by turning joint, cantilever is connected with crossbeam by turning joint, and the two ends of described crossbeam are passed through the turning joint upper end respectively with the second expansion link and the 3rd expansion link and are connected.The upper mounting plate of the present invention has three degree of freedom, can reduce upper mounting plate above-below direction translation vibration, front and back and left and right directions swing vibration, the present invention also has simple in construction, it is easy to manufacture, the advantage of low cost.
Description
Technical field
The invention belongs to vibration isolation technique field, particularly relate to a kind of Three Degree Of Freedom active vibration isolation using active drive and put down
Platform.
Background technology
Under the environment such as vehicle-mounted and boat-carrying, related equipment and personnel inevitably will be by space oscillations institutes
The impact brought, practitioner may be damaged by this impact, or the precision of lowering apparatus, reduces the use longevity of instrument
Life.Therefore, vibration-isolating platform is for reducing the vibration of ambulance sick bed, it is ensured that the normal work of precision instrument, raising navigation system,
The job stability of the precision of alignment system and raising sighting system has great importance.
Patent 201110331760.7 proposes a kind of multi-degree-of-freedom vibration isolation platform, has 3 translational degree of freedom and 1 rotation
Degree of freedom.But it uses cascaded structure, the vibration needing complicated control system could be coupled translation rotation is isolated.
By contrast, parallel institution can preferably realize compensating for coupling, and it is simple to have mechanism, and bearing capacity is big, it is easy to control etc.
Advantage.
Patent 201310440171.1 and 200910071534.2 proposes a kind of six-freedom parallel vibration-isolating platform respectively.So
And, under the conditions of vehicle-mounted, boat-carrying, the main vibration of system often caused by the fluctuation of pavement roughness or the water surface cause upper
The swing vibration of translation vibration, left and right and the fore-and-aft direction in lower direction.By contrast, lower-mobility (less than 6DOF)
Vibration-isolating platform needs less driver, can reduce integrally-built quality with energy efficient, improves the vibration isolation effect of specific direction
Really.
Patent 201210228641.3 and 201310297805.2 proposes a kind of four-degree-of-freedom parallel connection vibration-isolating platform respectively,
But, what these structures were too much have employed universal coupling and spherical hinge, and the processing of this kind of hinge is more complicated than turning joint, increases
Add manufacturing cost.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of simple in construction, low cost of manufacture and vibration isolating effect good
Three Degree Of Freedom Active Vibration Isolation Platform.
The technical solution used in the present invention is: includes upper mounting plate, lower platform, the first expansion link, the second expansion link, the 3rd stretch
Contracting bar, cantilever and crossbeam；Described the first expansion link, the lower end of the 3rd expansion link are connected with lower platform by turning joint respectively
Connecing, the second expansion link is fixedly mounted on lower platform；The upper end of the first described expansion link is by universal coupling and upper mounting plate one
The bottom of end connects, and the other end of described upper mounting plate is connected with cantilever by turning joint, and cantilever passes through turning joint with horizontal
Beam connects, and the two ends of described crossbeam are passed through the turning joint upper end respectively with the second expansion link and the 3rd expansion link and are connected.
In above-mentioned Three Degree Of Freedom Active Vibration Isolation Platform, described the second expansion link, crossbeam and the 3rd expansion link place
Plane is vertical with the plane of movement of cantilever, and the axis and the 3rd of the turning joint that the first described expansion link and lower platform connect is stretched
Contracting bar is parallel with the axis of the turning joint that lower platform connects.
In above-mentioned Three Degree Of Freedom Active Vibration Isolation Platform, the axis of the turning joint that described upper mounting plate and cantilever connect with
Cantilever is parallel with the axis of the turning joint that crossbeam connects.
In above-mentioned Three Degree Of Freedom Active Vibration Isolation Platform, described the first expansion link, the second expansion link and the 3rd expansion link
Motor is used to drive or Piezoelectric Driving.
Compared with prior art, the invention has the beneficial effects as follows:
The upper mounting plate of the present invention has three degree of freedom, can reduce upper mounting plate above-below direction translation vibration, front and back with
And the swing vibration of left and right directions, therefore can meet the vibration isolation requirement under the conditions of vehicle-mounted and boat-carrying；The present invention only has first to stretch
The hinge that contracting bar upper end is connected with upper mounting plate is universal coupling, and remaining hinge is turning joint, simple in construction, it is easy to manufacture；
Simultaneously as the present invention uses active Vibration Isolation, it is possible to more effectively isolation intermediate frequency and low-frequency vibration, have very simultaneously
High bearing capacity.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the right view of the present invention.
In figure: 1-upper mounting plate 2-lower platform 3-the first expansion link 4-the second expansion link 5-the 3rd expansion link 6-
Cantilever 7-crossbeam.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, the present invention include upper mounting plate 1, lower platform the 2, first expansion link the 3, second expansion link 4,
3rd expansion link 5, cantilever 6 and crossbeam 7.The lower end of the first described expansion link the 3, the 3rd expansion link 5 passes through turning joint respectively
Being connected with lower platform 2, the second expansion link 4 is fixedly mounted on lower platform 2, and the second expansion link 4 is perpendicular to lower platform 2.Described
The upper end of the first expansion link 3 is connected with the bottom of upper mounting plate 1 one end by universal coupling, and the other end of described upper mounting plate 1 leads to
Crossing turning joint to be connected with cantilever 6, cantilever 6 is connected with crossbeam 7 by turning joint, and the two ends of described crossbeam 7 are by rotating
Hinge upper end with the second expansion link 4 and the 3rd expansion link 5 respectively is connected.First described expansion link the 3, second expansion link 4 and
3rd expansion link 5 uses motor to drive or Piezoelectric Driving.
Described the second expansion link 4, crossbeam 7 are vertical with the plane of movement of cantilever 6 with the plane at the 3rd expansion link 5 place,
What the axis of the turning joint that the first described expansion link 3 and lower platform 2 connect and the 3rd expansion link 5 and lower platform 2 connected turns
The axis of dynamic hinge is parallel.The rotating hinge that the axis of the turning joint that upper mounting plate 1 and cantilever 6 connect is connected with cantilever 6 and crossbeam 7
The axis of chain is parallel.
The upper mounting plate 1 of the present invention has three degree of freedom, can reduce the translation vibration of upper mounting plate 1 above-below direction, front and back
And the swing vibration of left and right directions, therefore can meet the vibration isolation requirement under the conditions of vehicle-mounted and boat-carrying.The present invention only has first
The hinge that expansion link 3 upper end is connected with upper mounting plate 1 is universal coupling, and remaining hinge is turning joint, simple in construction, it is easy to system
Make.Simultaneously as the present invention uses active Vibration Isolation, it is possible to more effectively isolation intermediate frequency and low-frequency vibration, gather around simultaneously
There is the highest bearing capacity.
Claims (4)
1. a Three Degree Of Freedom Active Vibration Isolation Platform, is characterized in that: include upper mounting plate, lower platform, the first expansion link, second stretch
Bar, the 3rd expansion link, cantilever and crossbeam；Described the first expansion link, the lower end of the 3rd expansion link respectively by turning joint with
Lower platform connects, and the second expansion link is fixedly mounted on lower platform；The upper end of the first described expansion link by universal coupling with
The bottom of upper mounting plate one end connects, and the other end of described upper mounting plate is connected with cantilever by turning joint, and cantilever is by rotating
Hinge is connected with crossbeam, the two ends of described crossbeam by turning joint respectively with the second expansion link and the upper end of the 3rd expansion link
Connect.
Three Degree Of Freedom Active Vibration Isolation Platform the most according to claim 1, is characterized in that: described the second expansion link, crossbeam
Vertical with the plane of movement of cantilever with the plane at the 3rd expansion link place, that the first described expansion link and lower platform connect rotation
The axis of hinge is parallel with the axis of the turning joint that the 3rd expansion link and lower platform connect.
Three Degree Of Freedom Active Vibration Isolation Platform the most according to claim 1, is characterized in that: described upper mounting plate and cantilever connect
Axis and the cantilever of turning joint and the axis of turning joint that connects of crossbeam parallel.
Three Degree Of Freedom Active Vibration Isolation Platform the most according to claim 1, is characterized in that: described the first expansion link, second
Expansion link and the 3rd expansion link use motor to drive or Piezoelectric Driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433015.1A CN104976488B (en) | 2015-07-22 | 2015-07-22 | A kind of Three Degree Of Freedom Active Vibration Isolation Platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433015.1A CN104976488B (en) | 2015-07-22 | 2015-07-22 | A kind of Three Degree Of Freedom Active Vibration Isolation Platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104976488A CN104976488A (en) | 2015-10-14 |
| CN104976488B true CN104976488B (en) | 2016-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510433015.1A Expired - Fee Related CN104976488B (en) | 2015-07-22 | 2015-07-22 | A kind of Three Degree Of Freedom Active Vibration Isolation Platform |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469612A (en) * | 2022-02-18 | 2022-05-13 | 江南造船(集团)有限责任公司 | Ship medical operating table and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4988244A (en) * | 1989-09-01 | 1991-01-29 | Kearney & Trecker | Six-axis machine tool |
| US5588369A (en) * | 1994-05-12 | 1996-12-31 | Zedd Technologies Inc. | Passive stabilization platform |
| CN101339701A (en) * | 2008-08-18 | 2009-01-07 | 吉林大学 | Three freedom degree movement simulation platform |
| CN102501230A (en) * | 2011-10-28 | 2012-06-20 | 中国工程物理研究院应用电子学研究所 | Multi-degree-of-freedom vibration isolation bearing platform |
| CN203254416U (en) * | 2013-05-21 | 2013-10-30 | 成都航空职业技术学院 | Three-degree-of-freedom parallel mechanism |
| CN104690712A (en) * | 2015-01-20 | 2015-06-10 | 中国民航大学 | Simulation platform adopting four-DOF (degree-of-freedom) series-parallel connection |
| CN204852820U (en) * | 2015-07-22 | 2015-12-09 | 湖南科技大学 | Three degrees of freedom initiative vibration isolation platform |
-
2015
- 2015-07-22 CN CN201510433015.1A patent/CN104976488B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4988244A (en) * | 1989-09-01 | 1991-01-29 | Kearney & Trecker | Six-axis machine tool |
| US5588369A (en) * | 1994-05-12 | 1996-12-31 | Zedd Technologies Inc. | Passive stabilization platform |
| CN101339701A (en) * | 2008-08-18 | 2009-01-07 | 吉林大学 | Three freedom degree movement simulation platform |
| CN102501230A (en) * | 2011-10-28 | 2012-06-20 | 中国工程物理研究院应用电子学研究所 | Multi-degree-of-freedom vibration isolation bearing platform |
| CN203254416U (en) * | 2013-05-21 | 2013-10-30 | 成都航空职业技术学院 | Three-degree-of-freedom parallel mechanism |
| CN104690712A (en) * | 2015-01-20 | 2015-06-10 | 中国民航大学 | Simulation platform adopting four-DOF (degree-of-freedom) series-parallel connection |
| CN204852820U (en) * | 2015-07-22 | 2015-12-09 | 湖南科技大学 | Three degrees of freedom initiative vibration isolation platform |
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| CN104976488A (en) | 2015-10-14 |
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