CN104976488A - Three-freedom-degree active vibration isolation platform - Google Patents
Three-freedom-degree active vibration isolation platform Download PDFInfo
- Publication number
- CN104976488A CN104976488A CN201510433015.1A CN201510433015A CN104976488A CN 104976488 A CN104976488 A CN 104976488A CN 201510433015 A CN201510433015 A CN 201510433015A CN 104976488 A CN104976488 A CN 104976488A
- Authority
- CN
- China
- Prior art keywords
- flexible rod
- cantilever
- freedom
- turning joint
- vibration isolation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a three-freedom-degree active vibration isolation platform. The three-freedom-degree active vibration isolation platform comprises an upper platform body, a lower platform body, a first telescopic rod, a second telescopic rod, a third telescopic rod, a cantilever and a cross beam. The lower end of the first telescopic rod and the lower end of the third telescopic rod are connected with the lower platform body through rotary hinges respectively. The second telescopic rod is fixedly arranged on the lower platform body. The upper end of the first telescopic rod is connected with the bottom of one end of the upper platform body through a universal hinge. The other end of the upper platform body is connected with the cantilever through a rotary hinge. The cantilever is connected with the cross beam through a rotary hinge. The two ends of the cross beam are connected with the upper end of the second telescopic rod and the upper end of the third telescopic rod through rotary hinges respectively. The upper platform body has three degrees of freedom, so translational vibration of the upper platform body in the up-down direction and swing vibration of the upper platform body in the front-back direction and the left-right direction can be reduced. The three-freedom-degree active vibration isolation platform further has the advantages of being simple in structure, easy to manufacture and low in 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 Platform adopting active drive.
Background technique
Under the environment such as vehicle-mounted and boat-carrying, related equipment and personnel inevitably will be subject to the impact that space oscillations is brought, and this impact may damage practitioner, or the precision of lowering apparatus, reduce the working life of instrument.Therefore, vibration-isolating platform, for the vibration reducing ambulance sick bed, ensures the normal work of precision type instrument, improves navigation system, the precision of navigation system and the working stability of raising sighting system and 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 rotational freedom.But it adopts cascaded structure, need complicated control system could to isolate the vibration that translation rotation is coupled.By contrast, paralleling mechanism better can realize compensating for coupling, and it is simple to have mechanism, and bearing capacity is large, is easy to the advantages such as control.
Patent 201310440171.1 and 200910071534.2 proposes a kind of six-freedom parallel vibration-isolating platform respectively.But, under vehicle-mounted, boat-carrying condition, the swing vibration of the translation vibration of the above-below direction that the main vibration of system causes due to the fluctuation of pavement roughness or the water surface often, left and right and fore-and-aft direction.By contrast, the vibration-isolating platform of lower-mobility (being less than 6DOF) needs less driver, can energy efficient, reduces integrally-built quality, improves the vibration isolating effect of specific direction.
Patent 201210228641.3 and 201310297805.2 proposes a kind of four-degree-of-freedom vibration-isolating platform in parallel 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, adds manufacture cost.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides that a kind of structure is simple, low cost of manufacture and the good Three Degree Of Freedom Active Vibration Isolation Platform of vibration isolating effect.
The technical solution used in the present invention is: comprise upper mounting plate, lower bolster, the first flexible rod, the second flexible rod, the 3rd flexible rod, cantilever and crossbeam; The lower end of the first described flexible rod, the 3rd flexible rod is connected with lower bolster respectively by turning joint, and the second flexible rod is fixedly mounted on lower bolster; The upper end of the first described flexible rod is connected by the bottom of universal coupling with upper mounting plate one end, 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 connected with the upper end of the second flexible rod and the 3rd flexible rod respectively by turning joint.
In above-mentioned Three Degree Of Freedom Active Vibration Isolation Platform, the second described flexible rod, crossbeam are vertical with the plane of movement of cantilever with the plane at the 3rd flexible rod place, the axis being parallel of the turning joint that the axis of the turning joint that the first described flexible rod is connected with lower bolster is connected with the 3rd flexible rod and lower bolster.
In above-mentioned Three Degree Of Freedom Active Vibration Isolation Platform, the axis being parallel of the turning joint that the axis of the turning joint that described upper mounting plate is connected with cantilever is connected with cantilever and crossbeam.
In above-mentioned Three Degree Of Freedom Active Vibration Isolation Platform, the first described flexible rod, the second flexible rod and the 3rd flexible rod adopt motor to drive or Piezoelectric Driving.
Compared with prior art, the invention has the beneficial effects as follows:
Upper mounting plate of the present invention has three degree of freedom, can reduce the translation vibration of upper mounting plate above-below direction, and the swing vibration of front and back and left and right directions, therefore can meet the vibration isolation requirement under vehicle-mounted and boat-carrying condition; The hinge that the present invention only has the first flexible rod upper end to be connected with upper mounting plate is universal coupling, and all the other hinges are turning joint, and structure is simple, is easy to manufacture; Meanwhile, because the present invention adopts active Vibration Isolation, can more effective isolation intermediate frequency and low-frequency vibration, have very high bearing capacity simultaneously.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention.
Fig. 2 is plan view of the present invention.
Fig. 3 is right elevation of the present invention.
In figure: 1-upper mounting plate 2-lower bolster 3-first flexible rod 4-second flexible rod 5-the 3rd flexible rod 6-cantilever 7-crossbeam.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, Figure 2 and Figure 3, the present invention includes upper mounting plate 1, lower bolster 2, first flexible rod 3, second flexible rod 4, the 3rd flexible rod 5, cantilever 6 and crossbeam 7.The first described flexible rod 3, the lower end of the 3rd flexible rod 5 are connected with lower bolster 2 respectively by turning joint, and the second flexible rod 4 is fixedly mounted on lower bolster 2, and the second flexible rod 4 is perpendicular to lower bolster 2.The upper end of the first described flexible rod 3 is connected by the bottom of universal coupling with upper mounting plate 1 one end, the other end of described upper mounting plate 1 is connected with cantilever 6 by turning joint, cantilever 6 is connected with crossbeam 7 by turning joint, and the two ends of described crossbeam 7 are connected with the upper end of the second flexible rod 4 and the 3rd flexible rod 5 respectively by turning joint.The first described flexible rod 3, second flexible rod 4 and the 3rd flexible rod 5 adopt motor to drive or Piezoelectric Driving.
The second described flexible rod 4, crossbeam 7 are vertical with the plane of movement of cantilever 6 with the plane at the 3rd flexible rod 5 place, the axis being parallel of the turning joint that the axis of the turning joint that the first described flexible rod 3 is connected with lower bolster 2 is connected with the 3rd flexible rod 5 and lower bolster 2.The axis being parallel of the turning joint that the axis of the turning joint that upper mounting plate 1 is connected with cantilever 6 is connected with cantilever 6 and crossbeam 7.
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, and the swing vibration of front and back and left and right directions, therefore can meet the vibration isolation requirement under vehicle-mounted and boat-carrying condition.The hinge that the present invention only has the first flexible rod 3 upper end to be connected with upper mounting plate 1 is universal coupling, and all the other hinges are turning joint, and structure is simple, is easy to manufacture.Meanwhile, because the present invention adopts active Vibration Isolation, can more effective isolation intermediate frequency and low-frequency vibration, have very high bearing capacity simultaneously.
Claims (4)
1. a Three Degree Of Freedom Active Vibration Isolation Platform, is characterized in that: comprise upper mounting plate, lower bolster, the first flexible rod, the second flexible rod, the 3rd flexible rod, cantilever and crossbeam; The lower end of the first described flexible rod, the 3rd flexible rod is connected with lower bolster respectively by turning joint, and the second flexible rod is fixedly mounted on lower bolster; The upper end of the first described flexible rod is connected by the bottom of universal coupling with upper mounting plate one end, 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 connected with the upper end of the second flexible rod and the 3rd flexible rod respectively by turning joint.
2. Three Degree Of Freedom Active Vibration Isolation Platform according to claim 1, it is characterized in that: the second described flexible rod, crossbeam are vertical with the plane of movement of cantilever with the plane at the 3rd flexible rod place, the axis being parallel of the turning joint that the axis of the turning joint that the first described flexible rod is connected with lower bolster is connected with the 3rd flexible rod and lower bolster.
3. Three Degree Of Freedom Active Vibration Isolation Platform according to claim 1, is characterized in that: the axis being parallel of the turning joint that the axis of the turning joint that described upper mounting plate is connected with cantilever is connected with cantilever and crossbeam.
4. Three Degree Of Freedom Active Vibration Isolation Platform according to claim 1, is characterized in that: the first described flexible rod, the second flexible rod and the 3rd flexible rod adopt 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 true CN104976488A (en) | 2015-10-14 |
| CN104976488B CN104976488B (en) | 2016-12-21 |
Family
ID=54273278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510433015.1A Active CN104976488B (en) | 2015-07-22 | 2015-07-22 | A kind of Three Degree Of Freedom Active Vibration Isolation Platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104976488B (en) |
Cited By (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 active Active
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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104976488B (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101119512B1 (en) | 3 degrees of freedom parallel link platform to be able to change singularity | |
| CN102773855B (en) | A kind of four-degree-of-freedom posture adjustment vibration-isolating platform in parallel | |
| CN103423558A (en) | Coupled four-freedom-degree parallel connection vibration isolation platform | |
| CN103029120B (en) | Folding static load balance adjusting parallel platform | |
| JP4519195B1 (en) | General-purpose frame structure for power plant mounting. | |
| EP2623173B1 (en) | Four degrees of freedom motion apparatus | |
| TW201713450A (en) | Support device, support unit system and support unit control system | |
| CN102556372B (en) | Semi-active six-degree-of-freedom simulation device | |
| CN104308838B (en) | Low-and high-frequency composite flooding six-freedom parallel sports platform | |
| TW201607625A (en) | Vibration-applying device, electrodynamic actuator, crossed guideway, linear guideway, and vibrating table | |
| KR20150084985A (en) | A six-degree-of-freedom motion simulator assembly | |
| CN104963984A (en) | Two-dimensional, integrated and semi-automatic controllable vibration damper in longitudinal and vertical directions | |
| CN108039795A (en) | A kind of New energy automobile motor damping device | |
| CN103424269B (en) | A kind of coupled mode four-degree-of-freedom motion simulation platform containing closed-loop subchain | |
| CN204852820U (en) | Three degrees of freedom initiative vibration isolation platform | |
| CN105980250B (en) | Undercarriage and the unmanned vehicle for using the undercarriage | |
| CN104526684A (en) | High-rigidity hybrid robot capable of achieving gravity self balancing | |
| CN104458169A (en) | High-and-low-frequency compound drive parallel two-dimensional rotating platform | |
| CN104976488A (en) | Three-freedom-degree active vibration isolation platform | |
| CN103426356A (en) | Coupling movement simulation platform with four degrees of freedom | |
| CN103495973B (en) | Planar three-freedom-degree parallel mechanism driven by three linear drivers and application thereof | |
| CN104315060A (en) | Triangular stable support type vibration isolator | |
| CN102922507A (en) | Two-degree-of-freedom leveling device | |
| CN101618667B (en) | Leaf-spring equalizing suspension mechanism, multi-axis vehicle leaf-spring equalizing suspension system and crane | |
| CN102887035A (en) | Moving wheel device with omni-directional movement for aerial working platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |