CN204358007U - A kind of multidimensional vibration reduction device of frequency-adjustable - Google Patents
A kind of multidimensional vibration reduction device of frequency-adjustable Download PDFInfo
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- CN204358007U CN204358007U CN201420800662.2U CN201420800662U CN204358007U CN 204358007 U CN204358007 U CN 204358007U CN 201420800662 U CN201420800662 U CN 201420800662U CN 204358007 U CN204358007 U CN 204358007U
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- spring
- silent flatform
- frequency
- damp
- branched chain
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Abstract
The utility model discloses a kind of multidimensional vibration reduction device of frequency-adjustable, and this device is made up of moving platform, silent flatform, the first sliding guide, the second sliding guide and four movement branched chain connecting moving platform and silent flatform.It is characterized in that: this vibration damping equipment designs based on a multiple freedom parallel mechanism, in connection, four movement branched chain structures of lower bolster are identical, be arranged symmetrically in space, every bar movement branched chain is connected with silent flatform with moving platform with sliding pair respectively by cylindric pair, silent flatform sliding pair place is separately installed with spring-damp system, be separately installed with mobile controlling device at spring-damp system place, multidimensional vibration isolation can be realized.Spring-damp system can be made to produce along sliding guide by the helicoidal gear handle in torsional spring damping movement controlling device mobile, then the best isolation frequency value range of this vibration damping equipment changes, thus realizes this function of frequency modulation.The manufacturing process of this vibration damping equipment is simple, and with low cost, easy to operate, market prospects are very wide.
Description
Technical field
The utility model discloses a kind of multidimensional vibration reduction device of frequency-adjustable.
Background technique
Multidimensional vibration reduction device is a kind of equipment reducing multi-dimensional vibration and transmit, and can be widely used in the vibration damping of ambulance stretcher, automotive seat etc., can also be applied in the isolating technique of all kinds of vehicle-mounted, boat-carrying and airborne precision instrument and equipment.Tradition vibration damping equipment mainly inserts spring or rubber vibration isolator between vibratory equipment and basis, mainly bear Uniaxial Compression or stretching, and amount of deformation is less, to large amplitude multidimensional vibration reduction DeGrain.Paralleling mechanism has the advantages such as rigidity is large, structural stability, bearing capacity are strong, movement travel is large, dynamic characteristic is good, starts to be applied to multidimensional vibration reduction device in recent years, can solve For High Dimensions Vibration Problem.
Along with the development of technology, the complicated degree of machinery is more and more higher, same machinery often has multiple different work operating mode, there is larger change in the frequency of suffered vibrational excitation when this just causes machinery to work under different operating mode and direction, in addition such as vehicle etc. different jolt road traveling time, the excursion of the energizing frequency of input is also comparatively large, therefore just needs to have the adjustable multidimensional vibration reduction device of isolation frequency scope.But traditional vibration damping equipment designs according to a certain frequency often, when other operation at frequencies, correspondingly cannot carry out the adjustment of system frequency, thus make effectiveness in vibration suppression greatly decline.
Model utility content
The purpose of this utility model is to provide a kind of multidimensional vibration reduction device of frequency-adjustable, this device can effectively for multi-direction multidimensional vibration reduction, the more important thing is also can according to the change of the difference of device for vibration insutation operating mode, energizing frequency, the natural frequency of change system, thus device is within best isolation frequency scope all the time.That is this vibration damping equipment according to the difference of required isolation frequency scope, without the need to changing spring-damp system, only can need simple regulating device initial position, can realize this function of vibrating isolation system frequency-adjustable, simple, reliable operation.
The utility model is the above-mentioned deficiency in order to solve existing for prior art, a kind of multidimensional vibration reduction device that can carry out frequency modulation according to the different isolation frequency of required dampening apparatus of proposition.
The technological scheme that the utility model adopts is:
A kind of frequency-adjustable multidimensional vibration reduction device, comprise moving platform setting up and down and silent flatform, and form movement branched chain connection that is identical and that be arranged symmetrically in space by four structures between moving platform and silent flatform, movement branched chain described in every bar is made up of by a revolute pair is hinged connecting rod and slide block, described connecting rod is connected by cylindric pair and moving platform, described slide block is connected with silent flatform by sliding pair, and each slide block of four side chains forms yielding support each via a spring-damp system and silent flatform, realize the Three Degree Of Freedom multidimensional vibration reduction of vibrating isolation system, and be connected by a sliding guide between two spring-damp systems of silent flatform relative position, in spring-damp system described in four, wherein two spring-damp system places are provided with mobile controlling device, spring-damp system is made to produce mobile along the sliding guide connecting two spring-damp systems by simple adjustment or rotating screw transmission device handle, also can consider to adopt stepper motor, hydraulic pressure and pneumaticly realize the adjustment of slide block along sliding guide direction, realize automatically regulating, namely under the prerequisite not changing spring-damp system, only need simply adjust slide block initial position by rotatable handle, just the best isolation frequency value range of this vibration damping equipment can be made to change, realize this function of frequency modulation.
Silent flatform is arranged two sliding guides of criss-crossing, in two spring-damp systems relative on every bar sliding guide, one of them spring-damp system connects mobile controlling device, another spring-damp system directly and silent flatform concrete mutually, namely in four spring-damp systems, wherein two spring-damp systems of the first and second side chains connect mobile controlling device, and another two spring-damp systems directly and silent flatform concrete mutually.
Described mobile controlling device comprises adjusting screw, power screw, stepper motor, hydraulic pressure and Pneumatic actuator etc.
Described helicoidal gear comprises two pressing plates, a spring and a screw, one end of described screw connects a handle, the other end is arranged on inside leading screw sleeve, described leading screw sleeve is fixedly connected with a pressing plate, another pressing plate is fixedly connected with spring-damp system, and described spring fitting between two pressing plates and both ends of the spring be connected on two pressing plates.
By the damping of rubber damping pad between described pressing plate and slide block.
By the damping of rubber damping pad between described pressing plate and leading screw sleeve.
Described screw is installed on silent flatform, drives leading screw sleeve to move by rotatable handle, and then drives spring-damp system to move left and right along sliding guide direction.
Compared with the existing technology, tool has the following advantages the utility model:
Its structure of this vibration damping equipment is simple, symmetrical arrangement, rigidity large, uniform force, can realize multidimensional vibration reduction, and there is isolation frequency this frequency modulation function adjustable that traditional vibration damping equipment cannot realize, and when realizing frequency modulation function, without the need to changing spring system, simple, reliable operation.Therefore, when under the operating mode that vibration damping equipment works under different equipment or same equipment is different, needed for vibration damping equipment, isolation frequency changes, it is mobile that helicoidal gear handle by torsional spring damping movement controlling device place makes spring-damp system produce along sliding guide, regulate the isolation frequency scope of vibration damping equipment, meet the requirement of vibration isolation.And the manufacturing process of this device is simple, with low cost, easy to operate, strong adaptability, and market prospects are very wide.
Accompanying drawing explanation
Fig. 1 the utility model example frequency-adjustable multidimensional vibration reduction apparatus structure schematic diagram;
Fig. 2 spring-damp system and mobile controlling device structural representation thereof;
In figure, 1, moving platform, 2, silent flatform, 21, first sliding guide, 22, second sliding guide, 31, first movement branched chain cylindric pair, 32, first movement branched chain connecting rod, 33, first movement branched chain slide block, 34, first movement branched chain spring-damp system, 341, spring-damp system rubber pad, 342, pressing plate, 343, screw, 344, spring, 345, bolt, 35, first movement branched chain moves controlling device, and 351, leading screw sleeve, 352, screw, 353, handle, 41, second movement branched chain cylindric pair, 42, second movement branched chain connecting rod, 43, second movement branched chain slide block, 44, second movement branched chain spring-damp system, 45, second movement branched chain moves controlling device, and 51, 3rd movement branched chain cylindric pair, 52, 3rd movement branched chain connecting rod, 53, 3rd movement branched chain slide block, 54, 3rd movement branched chain spring-damp system, 61, 4th movement branched chain cylindric pair, 62, 4th movement branched chain connecting rod, 63, 4th movement branched chain slide block, 64, 4th movement branched chain spring-damp system.
Embodiment:
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2: a kind of multidimensional vibration reduction device of frequency-adjustable, comprises moving platform 1, silent flatform 2, first sliding guide 21, second sliding guide 22, and four movement branched chain of the identical connection moving platform 1 of structure and silent flatform 2, four side chains are arranged symmetrically in space.
First movement branched chain is by first being connected with moving platform 1 by cylindric pair 31, cylindric pair 31 is affixed with connecting rod 32, connecting rod 32 and slide block 33 hinged, slide block 33 is connected with the sliding guide 21 of silent flatform 2 by sliding pair, slide block 33 is supported by a spring-damp system 34, and spring-damp system 34 realizes the adjustment of the position on sliding guide 21 direction by the mobile controlling device 35 that is installed on silent flatform 2.
The structure of spring-damp system and mobile controlling device thereof as shown in Figure 2, first left side pressing plate 342 is fixed on spring 344 left end and rubber damping pad 341 on slide block 33 by screw 342, right side bolt 345 is fixed together pressing plate 342, spring 344 right-hand member, rubber damping pad 341 and leading screw sleeve 351, screw 352 and leading screw sleeve 351 form screw pair, screw 352 is installed on silent flatform 2, then rotatable handle 353 can make screw shell 351 drive spring-damp system 34 to move left and right along sliding guide 21 direction.
Second movement branched chain too comprise the second movement branched chain cylindric pair 41, second movement branched chain connecting rod 42, second movement branched chain slide block 43, second movement branched chain spring-damp system 44, second movement branched chain moves controlling device 45, its annexation is identical with the first movement branched chain, repeats no more here.
3rd movement branched chain too comprise the second movement branched chain cylindric pair 51, second movement branched chain connecting rod 52, second movement branched chain slide block 53, second movement branched chain spring-damp system 54, compared with the first movement branched chain, spring-damp system 54 the other end directly and silent flatform 2 concrete mutually, only lacks the mobile controlling device of spring-damp system 54, remaining annexation is identical, here repeats no more.
4th movement branched chain too comprise the second movement branched chain cylindric pair 61, second movement branched chain connecting rod 62, second movement branched chain slide block 63, second movement branched chain spring-damp system 64, it is identical with the 3rd movement branched chain, also no longer repeats here.
By carrying out dynamics research to this vibration damping equipment system and analyzing known, when two spring-damp systems that two sliding guides are installed are in the diverse location of sliding guide, correspond to the system frequency that this damper mechanism system is different, namely when system condition or energizing frequency change, under the prerequisite not changing spring-damp system, only need the handle of simple rotation screw, just spring-damp system can be made to produce mobile, slide block is made to be in a certain graduation position on sliding guide, the best isolation frequency of the corresponding vibration damping equipment in this position, thus realize this function of frequency modulation, carry out the multidimensional vibration reduction of frequency-adjustable.Easy to operate, simple.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (6)
1. a frequency-adjustable multidimensional vibration reduction device, it is characterized in that: comprise moving platform setting up and down and silent flatform, and form movement branched chain connection that is identical and that be arranged symmetrically in space by four structures between moving platform and silent flatform, movement branched chain described in every bar is made up of by a revolute pair is hinged connecting rod and slide block, described connecting rod is connected by cylindric pair and moving platform, described slide block is connected with silent flatform by sliding pair, and each slide block of four side chains forms yielding support each via a spring-damp system and silent flatform, realize the multidimensional Three Degree Of Freedom vibration damping of vibrating isolation system, the spring-damp system being positioned at silent flatform relative position is middle connected by a sliding guide, in spring-damp system described in four, wherein two spring-damp system places are provided with and make spring-damp system produce the mobile controlling device of movement along the sliding guide connecting two spring-damp systems.
2. frequency-adjustable multidimensional vibration reduction device as claimed in claim 1, it is characterized in that: silent flatform is arranged two sliding guides, in two spring-damp systems relative on every bar sliding guide, one of them spring-damp system connects mobile controlling device, and another spring-damp system directly and silent flatform concrete mutually.
3. frequency-adjustable multidimensional vibration reduction device as claimed in claim 1, is characterized in that: described mobile controlling device comprises helicoidal gear or driving device for step-by-step or fluid pressure drive device or pneumatic actuating device and realizes automatically regulating.
4. frequency-adjustable multidimensional vibration reduction device as claimed in claim 3, it is characterized in that: described helicoidal gear comprises two pressing plates, a spring and a screw, one end of described screw connects a handle, the other end is arranged on inside leading screw sleeve, described leading screw sleeve is fixedly connected with a pressing plate, and another pressing plate is fixedly connected with spring-damp system, and described spring fitting between two pressing plates and both ends of the spring be connected on two pressing plates.
5. frequency-adjustable multidimensional vibration reduction device as claimed in claim 4, is characterized in that: by the damping of rubber damping pad between described pressing plate and slide block, by the damping of rubber damping pad between described pressing plate and leading screw sleeve.
6. frequency-adjustable multidimensional vibration reduction device as claimed in claim 4, is characterized in that: described screw is installed on silent flatform, drives leading screw sleeve to move by rotatable handle, and then drives spring-damp system to move left and right along sliding guide direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800662.2U CN204358007U (en) | 2014-12-16 | 2014-12-16 | A kind of multidimensional vibration reduction device of frequency-adjustable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800662.2U CN204358007U (en) | 2014-12-16 | 2014-12-16 | A kind of multidimensional vibration reduction device of frequency-adjustable |
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| CN204358007U true CN204358007U (en) | 2015-05-27 |
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| CN201420800662.2U Expired - Fee Related CN204358007U (en) | 2014-12-16 | 2014-12-16 | A kind of multidimensional vibration reduction device of frequency-adjustable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455152A (en) * | 2014-12-16 | 2015-03-25 | 山东大学 | Frequency-modulated multidimensional vibration damper |
| CN105882944A (en) * | 2016-05-19 | 2016-08-24 | 郑琳琳 | Unmanned aerial vehicle undercarriage with double damping function |
-
2014
- 2014-12-16 CN CN201420800662.2U patent/CN204358007U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455152A (en) * | 2014-12-16 | 2015-03-25 | 山东大学 | Frequency-modulated multidimensional vibration damper |
| CN104455152B (en) * | 2014-12-16 | 2016-06-01 | 山东大学 | The multidimensional vibration reduction device of a kind of Frequency Adjustable |
| CN105882944A (en) * | 2016-05-19 | 2016-08-24 | 郑琳琳 | Unmanned aerial vehicle undercarriage with double damping function |
| CN105882944B (en) * | 2016-05-19 | 2018-08-03 | 吕志超 | A kind of unmanned plane undercarriage with dual shock absorption function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20191216 |