CN1397745A - Multi-freedom parallel mechanisms combined elastic vibration clamper - Google Patents
Multi-freedom parallel mechanisms combined elastic vibration clamper Download PDFInfo
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- CN1397745A CN1397745A CN 02137948 CN02137948A CN1397745A CN 1397745 A CN1397745 A CN 1397745A CN 02137948 CN02137948 CN 02137948 CN 02137948 A CN02137948 A CN 02137948A CN 1397745 A CN1397745 A CN 1397745A
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- freedom parallel
- parallel mechanisms
- elastic vibration
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Abstract
A multi-dimension vibration damper is composed of the multi-freedom parallel mechanism and combined spring structures consisting of spring and damping system. The number of said combined spring structures is determined by the number of freedoms of said parallel mechanism. A permanent magnet is used for bearing the main load in up-down direction. Its advantages are simple structure and high reliability.
Description
Affiliated technical field
The present invention relates to vibration damping equipment, refer in particular to and utilize paralleling mechanism to add the multi-freedom parallel mechanisms combined elastic vibration clamper that cluster spring constitutes.Can be used in multidimensional vibration reduction, vibrationproof, the vibrating isolation system, as: the three-dimensional of litter frame is prevented vibrating system.
Background technique
Litter frame is in use as directly connecting with rigidity of vehicle body, be subjected to that road conditions, engine luggine and car body open braking, the influence of factor such as turn round, and the vibration displacement direction of the litter frame that causes is three-dimensional, and therefore, it is carried out vibration damping must also need three-dimensional vibration damping.In order to address this problem, traditional way is to adopt multilayer one dimension vibration damping, complex structure, and unreliable.Japan Patent " vibrationproof ベ Star De ", special flat 6-184894 of Willing of number of patent application and Chinese patent 99123143.0 " Shockproof rack for ambulance ", the anti-vibrating system that is single-degree-of-freedom linkage mechanism composition that proposes or two layers of anti-vibrating system that the single-degree-of-freedom linkage mechanism is formed solve three-dimensional and three-dimensional above vibrationproof problem.Because increase with dimension, the number of plies also increases, and structure will be more complicated, and system weight also increases thereupon, and the reliability variation.
Summary of the invention
The objective of the invention is to provide a kind of plane or space multi-degree of freedom vibration reduction device realized, can realize the vibration damping of a plurality of degrees of freedom effectively, be used to realize the vibration damping of multi degree of freedom system.As: can be used for the vibration damping of litter frame, reduce patient's misery.
The technical solution adopted in the present invention is: multi-freedom parallel mechanisms combined elastic vibration clamper, it is characterized in that being provided with a multiple freedom parallel mechanism, be equipped with and outer spring and damped system of carrying balance at the dirivig member place of paralleling mechanism, forms elastic floating and support.
Be provided with the elastic floating support that permanent-magnet steel forms along main load direction between the moving platform of paralleling mechanism and the silent flatform; When dirivig member was mobile, mobile vice division chief was equipped with and draws or the pressing spring damped system, formed elastic floating and supported; When dirivig member is rotation, rotates vice division chief torsion spring and damped system are housed, form elastic floating and support.Wherein, spring and damped system sum equates that with the institution freedom number of degrees number of degrees of freedom of paralleling mechanism is 2 or 3 or 6, also can be 1 or 4 or 5.
Decide through designing and calculating and test result outer year of will bear by system of the damping constant of spring rate and damped system, and rod member length needs to determine by dynamic optimization design in the device, to avoid bad reflection such as resonance.
The invention has the beneficial effects as follows:
1. device can be realized multidimensional vibration reduction, and main load direction (being above-below direction) is equipped with the permanent-magnet steel of being made up of rare earth material and has further strengthened balance and vibration damping.
2. this device has also solved the drawback that the spring damping of in the past forming with permanent-magnet steel needs the directional post support well, and the cancellation directional post has overcome the shortcoming that influences damping property because of the directional post friction.
3. this device also can be applicable to the system that other need the multidimensional vibration reduction vibrationproof, need not multi-layer structure, makes overall structure simple, reliable operation.
Description of drawings
Concrete structure of the present invention is provided by accompanying drawing.
Fig. 1 is two-dimentional vibrationproof system schematic
Fig. 2 is three-dimensional vibrationproof system schematic
Fig. 3 is sextuple vibrationproof system schematic
Fig. 4 is spring and damped system structural representation
Fig. 5 is the permanent-magnet steel structural representation
1. springs and damped system 2. permanent-magnet steels 3. moving platforms 4. silent flatforms among the figure
Embodiment
In the embodiment of litter frame, adopt 2,3,6 branch roads on demand respectively between stretcher and the car bottom plate or between the object of other need vibration dampings, also can be 1,4,5 branch road plane or space parallel mechanisms, wherein, the moving platform of stretcher and paralleling mechanism (3) is affixed, silent flatform (4) is fixed on the car bottom plate, loads onto at the dirivig member place of paralleling mechanism through designing and calculating to have the spring of proper stiffness and damped system (1) and outer year balance.Be equipped with further balance and the vibration damping of permanent-magnet steel (2) between moving platform (3) and the silent flatform (4) as main load direction (being above-below direction).
Fig. 1 is composed in parallel by identical two groups of P, R, the secondary single open chain formed of R, and wherein, B, C, D are revolute pair (R pair); A, E are sliding pair (P pair).Constitute the elastic floating support with rigidity suitable spring and damped system (1) between sliding pair and the frame, the permanent-magnet steel (2) that repels each other is housed between C point and the frame constitutes the elastic floating support, so the C point just has the anti-vibration functions of X, Y both direction.
Fig. 2 is combined into paralleling mechanism by moving platform (3), silent flatform (4) and three groups of P, R, the secondary single open chains formed of C, and wherein C is a cylindric pair.Sliding pair A
1, A
2, A
3And constitute the elastic floating support with rigidity suitable spring and damped system (1) between the silent flatform (4), the permanent-magnet steel (2) that repels each other is housed between moving platform (3), the silent flatform (4) constitutes the elastic floating support, so moving platform (3) just has the anti-vibration functions of X, Y, three directions of Z.
Fig. 3 is combined into paralleling mechanism by moving platform (3), silent flatform (4) and six groups of S, P, the secondary single open chains formed of S, and wherein S is the ball pair.The elastic floating support that spring and damped system (1) are formed is housed in six sliding pair P, the permanent-magnet steel (2) that repels each other is housed between moving platform (3), the silent flatform (4) constitutes elastic floating and support, so moving platform (3) just has X, Y, three directions of Z move and around the anti-vibration functions of three rotations of X, Y, Z axle.
Related embodiment is not very enumerated, and present embodiment only is used for explanation and does not limit.
Claims (6)
1, multi-freedom parallel mechanisms combined elastic vibration clamper is characterized in that being provided with a multiple freedom parallel mechanism, and be equipped with and outer spring and damped system (1) of carrying balance at the dirivig member place of paralleling mechanism, forms elastic floating and support.
2, multi-freedom parallel mechanisms combined elastic vibration clamper according to claim 1 is characterized in that between the moving platform (3) of paralleling mechanism and the silent flatform (4) that being provided with the elastic floating that permanent-magnet steel (2) forms along main load direction supports.
3, multi-freedom parallel mechanisms combined elastic vibration clamper according to claim 1, when it is characterized in that dirivig member is mobile, mobile vice division chief is equipped with and draws or pressing spring damped system (1), forms elastic floating and supports.
4, multi-freedom parallel mechanisms combined elastic vibration clamper according to claim 1 is characterized in that forming elastic floating and supporting if dirivig member when rotating, rotates vice division chief torsion spring and damped system (1) are housed.
5, multi-freedom parallel mechanisms combined elastic vibration clamper according to claim 1 is characterized in that spring and damped system sum equates that with the institution freedom number of degrees number of degrees of freedom of paralleling mechanism is 2 or 3 or 6.
6, multi-freedom parallel mechanisms combined elastic vibration clamper according to claim 1 is characterized in that the number of degrees of freedom of paralleling mechanism also can be 1 or 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137948 CN1253668C (en) | 2002-07-12 | 2002-07-12 | Multi-freedom parallel mechanisms combined elastic vibration clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137948 CN1253668C (en) | 2002-07-12 | 2002-07-12 | Multi-freedom parallel mechanisms combined elastic vibration clamper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1397745A true CN1397745A (en) | 2003-02-19 |
| CN1253668C CN1253668C (en) | 2006-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02137948 Expired - Fee Related CN1253668C (en) | 2002-07-12 | 2002-07-12 | Multi-freedom parallel mechanisms combined elastic vibration clamper |
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| CN (1) | CN1253668C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334082B (en) * | 2007-06-28 | 2012-04-25 | 株式会社神户制钢所 | Damping device and damping method |
| CN101559396B (en) * | 2009-05-15 | 2012-08-29 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN106015848A (en) * | 2016-05-24 | 2016-10-12 | 范志豪 | Vibration damping device |
| CN107175657A (en) * | 2017-05-11 | 2017-09-19 | 东北大学 | A kind of permanent magnetism variation rigidity drive module for flexible robot |
| CN108871646A (en) * | 2018-06-28 | 2018-11-23 | 西安航天动力研究所 | A kind of bracket with Bidirectional freedom degree |
-
2002
- 2002-07-12 CN CN 02137948 patent/CN1253668C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334082B (en) * | 2007-06-28 | 2012-04-25 | 株式会社神户制钢所 | Damping device and damping method |
| CN101559396B (en) * | 2009-05-15 | 2012-08-29 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN106015848A (en) * | 2016-05-24 | 2016-10-12 | 范志豪 | Vibration damping device |
| CN107175657A (en) * | 2017-05-11 | 2017-09-19 | 东北大学 | A kind of permanent magnetism variation rigidity drive module for flexible robot |
| CN108871646A (en) * | 2018-06-28 | 2018-11-23 | 西安航天动力研究所 | A kind of bracket with Bidirectional freedom degree |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1253668C (en) | 2006-04-26 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Power Station Auxiliary Machinery General Plant Co., Ltd., Changzhou Assignor: Jiangsu University Contract fulfillment period: 2008.8.18 to 2013.8.18 contract change Contract record no.: 2008320000413 Denomination of invention: Multi-freedom parallel mechanisms combined elastic vibration clamper Granted publication date: 20060426 License type: Exclusive license Record date: 2008.9.26 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.18 TO 2013.8.18 Name of requester: CHANGZHOU POWER PLANT AUXILIARY PLANT CO. Effective date: 20080926 |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Power Station Auxiliary Machinery General Plant Co., Ltd., Changzhou Assignor: Jiangsu University Contract record no.: 2008320000413 Date of cancellation: 20110422 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060426 Termination date: 20120712 |