CN104895987B - A kind of miniature inclined-plane vibroshock - Google Patents
A kind of miniature inclined-plane vibroshock Download PDFInfo
- Publication number
- CN104895987B CN104895987B CN201510296128.1A CN201510296128A CN104895987B CN 104895987 B CN104895987 B CN 104895987B CN 201510296128 A CN201510296128 A CN 201510296128A CN 104895987 B CN104895987 B CN 104895987B
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- China
- Prior art keywords
- roller
- plane
- actuator
- outer tube
- vibroshock
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
Abstract
The invention discloses a kind of miniature inclined-plane vibroshock, including outer tube, actuator, guide roller, roller shaft, two extension springs, roller, roller bearing, spout, elastic block piece, sunk screws；Wherein guide roller constitutes actuation module by the upper and lower ends that roller shaft is assemblied in actuator respectively, and actuation module realizes the free motion along outer tube inner wall longitudinal rail by concave guide roller.The present invention, by the lengthwise movement along actuator side inclined-plane is converted into stretching and the contraction of extension spring, is realized longitudinal vibration-damping function, and is greatly reduced using the rigidity that inclined plane principle makes vibroshock, thus the vibration realizing isolation to lower frequency.In addition, the setting on tube-in-tube structure of the present invention and inclined-plane reduces the size of whole vibroshock effectively, make it preferably to be used in the midget plant of limited space, also this miniature vibroshock can be used as the Low rigidity Damping modules unit providing single-degree-of-freedom, require higher complicated vibration absorber to constitute or to build.
Description
Technical field
The present invention relates to vibration damping field and in particular to a kind of miniature inclined-plane vibroshock, be applied to space more limit to and
Require low frequency vibration damping and shock proof occasion, can be applicable to the specific fields such as crystal oscillator, miniaturized electronics, toy.
Background technology
The midget plants such as miniaturized electronics, airborne or missile-borne crystal oscillator need to realize vibration damping in the space of more limitation,
Thus suppression exports the adverse effect of electric signal characteristic due to the vibration of matrix for electronic installation.And existing vibration absorber one
As be applied to medium-and-large-sized structure, the vibroshock applied as fields such as precision instrument, automobile, engineering machinery, and be applied to little
The vibroshock of the field of electronic devices such as the vibroshock of microstructure, especially crystal oscillator typically adopts rubber, steel wire rope and elasticity unit
Part carries out vibration damping, but the vibration damping object for very light in weight in extremely limited space, when by low-frequency vibration generally all
Effectiveness in vibration suppression cannot be played.
Content of the invention
For the deficiencies in the prior art, the present invention is intended to provide a kind of miniature inclined-plane vibroshock, by using inclined plane principle
Design a kind of vibroshock of tube-in-tube structure, there is small structure and very low rigidity such that it is able to realize low in little space
Frequency vibration-damping function.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of miniature inclined-plane vibroshock, including outer tube, actuator, guide roller, roller shaft, roller, roller bearing, its feature exists
In described actuator assembly is in described outer tube；It is equipped with described roller shaft, rolling in cavity set by actuator upper and lower
Equipped with described guide roller on wheel shaft；The two ends of described roller bearing are connected to described outer tube both sides, and described roller is then socketed
In described roller bearing；, along longitudinally all having a V-shaped groove, wherein the V-shaped groove of side is mainly by longitudinal upper and lower for the middle part of actuator both sides
The fillet that two sections of inclined-planes and this Liang Duan inclined-plane intersection smoothly transit is constituted, and described two sections of inclined-planes all become a clamp with longitudinal direction
Angle, and two angle angles are identical；Actuator lateral dimension at fillet is minimum.
It should be noted that the relative length on two sections of inclined-planes of V-shaped groove set by actuator wherein side and fillet are two
Relative position on section inclined-plane depends on loading onto the static deformation amount of the rear shock absorber of vibration damping object, therefore will be according to vibration damping object
Weight determining.
Need it is further noted that described guide roller is in the swelling-waist shape that two ends are with diameter greater than mid diameter.
It should be noted that described outer tube includes antetheca, rear wall and diapire three face barrel, its relative antetheca and rear wall are equal
It has been provided with the longitudinal rail of positioning and guide effect, in order to constrain the orienting roll being contained in cavity set by actuator upper and lower
Wheel is so as to can be along described longitudinal rail lengthwise movement；Described rear wall is provided with elastic block piece or the fine wire twisting into multiply, and
Antetheca is provided with the cavity volume matching with described roller.
Need it is further noted that the both sides outer rim of described antetheca is equipped with spout by sunk screw, described rolling
The two ends of axle can be connected in the horizontal groove of setting on described spout respectively with performing relative motion.
It should be noted that described outer tube be respectively provided on two sides with least one extension spring, the two ends of described extension spring all carry
The drag hook of drag hook, wherein one end is socketed on the manhole set by outer tube rear wall, and the drag hook hook joint of the other end is equipped with roller
Roller bearing on, by the elastic force of extension spring make roller all the time with set by actuator side main by longitudinal two sections inclined-plane with
And the inclined-plane of V-shaped groove that the fillet that smoothly transits of this Liang Duan inclined-plane intersection is constituted contacts.
The beneficial effects of the present invention is：
1st, the present invention is respectively provided with along longitudinal V-shaped groove according to inclined plane principle in actuator both sides, wherein all the time with roller
The V-shaped groove contacting mainly is made up of so that vibroshock is firm in its longitudinal direction with the inclined-plane longitudinally forming an angle two sections
Angle value greatly reduces, about the 1/cot of extension spring rigidity value2(wherein θ is the angle between V-shaped groove inclined-plane and actuator longitudinal direction to θ；
If θ=11 °, then vibroshock longitudinally rigid be about extension spring rigidity value 1/25), thus vibration insulating system can reach very low
Natural frequency, realize vibration isolation to more low-frequency excitation；
2nd, the inclination angle on inclined-plane can be carried out according to specific vibration damping object and damping parameter with the length on two sections of inclined-planes
Design, such that it is able to meet the design needs to different-stiffness value in certain limit, and the design needs for various amplitude, from
And so that design has larger selectivity and motility；
3rd, damper stiffness is made while being greatly reduced, to achieve the structure design of microminaturization using inclined-plane so that whole
Individual structure can be applied in the less device of damping space；
4th, using outer tube inner wall longitudinal rail positioning and guide effect so that actuator can be led by the dolioform of concave
Way roller is realized reliably moving back and forth in longitudinal stability；
5th, the annular fine wire reality by elastic block piece being installed on outer tube or rigidity can be adjusted by screwing number of share of stock
The now flexible buffer to percussion.
Brief description
Fig. 1 is the exploded perspective view of the present invention；
Fig. 2 a and Fig. 2 b is the structural representation of outer tube described in Fig. 1；
Fig. 3 a and Fig. 3 b is the structural representation of actuator in Fig. 1；
Fig. 4 is the assembling process schematic diagram of each part in Fig. 1；
Fig. 5 is that in Fig. 1, each parts assembly completes schematic diagram；
Fig. 6 is the integral vibration damping structural representation of embodiment；
Fig. 7 a and Fig. 7 b is the stiffness analysis diagram of single vibroshock in embodiment.
Specific embodiment
Below with reference to accompanying drawing, the invention will be further described, it should be noted that the present embodiment is with this technology side
Premised on case, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to this reality
Apply example.
Part representated by each label of in figure is as follows：
1st, outer tube；2nd, guide roller；3rd, actuator；4th, roller shaft；5th, extension spring；6th, roller；7th, roller bearing；8th, elastic block piece；
9th, spout；10th, sunk screw；11st, miniature inclined-plane vibroshock；12nd, vibration damping object；13rd, vibrate basis；14th, ramp；15、
Lower inclined plane；16th, longitudinal rail；17th, cavity volume；18th, manhole.
As shown in figs 1 to 6, four guide rollers 2 are coaxially assemblied in the four rolling axle 4 being connected with actuator 3 respectively
On, four guide rollers 2 are respectively arranged at for a pair in the cavity set by actuator 3 upper and lower two-by-two；One end of extension spring 5 is drawn
Hook pass through outer tube 1 rear wall set by manhole 18, other end drag hook then hook joint in roller bearing 7；Roller 6 is co-axially mounted on roller bearing 7；
Two spouts 9 are connected in the both sides of outer tube 1 antetheca respectively by sunk screw 10；Roller bearing 7 two ends are each passed through two chutes
The horizontal groove of part 9, supports and constrains its motion by horizontal groove.Described outer tube 1 includes antetheca, rear wall and bottom
Wall three face barrel, actuator 3 is contained on outer tube 1 antetheca and the longitudinal rail 16 of rear wall by dolioform guide roller 2.Described
Rear wall is provided with elastic block piece 8 or twists into the fine wire of multiply to realize the flexible buffer to percussion, and sets on antetheca
There is the cavity volume 17 matching with described roller.
The both sides of actuator 3 all have along longitudinal V-shaped groove at middle part, and wherein the V-shaped groove of side is mainly by longitudinal upper
The fillet that inclined-plane 14 and 15 two sections of inclined-planes of lower inclined plane and this Liang Duan inclined-plane intersection smoothly transit is constituted, and described two sections of inclined-planes are equal
Form an angle with longitudinal, and two angle angles are identical.Actuator inclination angle of lateral dimension smallest chamfer and two at fillet
The length on section inclined-plane can be designed according to specific vibration damping object and damping parameter.
Specifically the step of installation is：
S1, first roller shaft 4 is each passed through guide roller 2, then is each passed through four of actuator 3 upper and lower ends and lead to
Hole, is positioned so as to axially not slip out with metal binding agent pair roller axle 4 two ends at through hole two ends；
S2, the fine wire that four elastic block pieces 8 or annular are twisted stock are sleeved on the rear wall of outer tube 1；By a cunning
Slotware 9 is connected on the side of outer tube 1 by sunk screw 10；
S3, it is directed to the middle recess of roller 2 and aligns with the longitudinal rail 16 set by outer tube 1 antetheca and rear wall, then will
Actuator is along along longitudinally loading outer tube 1；
S4 as shown in figure 4, roller 6 and two extension springs 5 are placed in the appropriate location on the inclined-plane of V-shaped groove set by actuator 3,
And one end of roller bearing 7 sequentially passed through be contained in the horizontal groove of the spout 9 at outer tube 1 side, the drag hook of extension spring 5, roller 6
Centre bore and another extension spring 5 drag hook；
The horizontal groove of spout 9 is passed through roller bearing and with sunk screw 10 by chute by S5, the last opposite side in outer tube 1
Part 9 is fixedly connected with outer tube 1.The view completing to assemble is as shown in Figure 5.
It should be noted that roller bearing 7 two ends shown in figure are all with the structure heaved, this serve position-limiting action thus
Roller bearing 7 is avoided to deviate from from the both sides of spout 9.In order to realize assembling process as above, only add in one end of roller bearing 7
Work goes out the structure heaved, to be assembled after the completion of again roller bearing 7 the other end made by modes such as melting or affixed drum heads spacing
Structure.
The operation principle of the miniature inclined-plane vibroshock of the present invention is：The coaxial rolling equipped with the cooperation of gap therewith on roller bearing
Son, when actuator along longitudinally opposed move reciprocatingly in outer tube when, set by side on actuator, the inclined-plane of V-shaped groove is due to drawing
The pulling force effect of spring and contact with roller all the time.It is that actuator lateral dimension is minimum at the fillet being connected due to two sections of inclined-planes
Position, so from roller is contacted with the fillet position of actuator, actuator is with respect to outer tube or roller to two end motions
When inclined-plane can to roller produce extend out power, thus being elongated extension spring further by roller bearing, when actuator makees return motion
When, extension spring can drive roller to produce tightening force by roller bearing and act on the inclined-plane of actuator thus offer decomposes longitudinal returning
Multiple power.Described elastic block piece or fine wire provide actuator to exceed during longitudinally reciprocating motion during design oscillating region
Shock resistance cushioning effect.Contacted therewith by the lower limb of actuator both sides and gradually reduce and tighten and realize flexible anti-impact
Hit.
The small-sized vibration damping object being about 80g below for certain quality m is further detailed, and this vibration damping pair
As only being affected by seat vibration in vertical direction, the natural frequency of designed whole vibration insulating system vertical direction requires
10Hz about.
As shown in fig. 6, four sets of miniature inclined-plane vibroshocks 11 to be arranged in the corner of vibration damping object 12 as four supporting legs, make
The upper end of moving part is fixedly connected with vibration damping object, and the lower end of outer tube is fixedly connected with vibration basis 13.
For realizing design requirement above, the extension spring used in vibroshock can be chosen in GB GB/T 1973.2-2005
The extension spring of model LB 0.35 × 2.5 × 7.5 × 7.5GB/T 1932.2-S, its rigidity is 1.104N/mm.Designed work
Moving part two inclined-plane is 11 degree with longitudinal angle, then due between major part relative motion be to roll, less ignoring
Single miniature inclined-plane vibration damping can be estimated by the dynamic balance shown in Fig. 7 a and Fig. 7 b and displacement relation in the case of frictional force
The rigidity value of device, in Fig. 7 a, Fn1, Fn2 are respectively two guide rollers 2 being located at actuator 3 top respectively along outer tube 1 antetheca
The power that the longitudinal rail being subject to when moving with longitudinal rail set by rear wall 16 applies, Fn3, Fn4 are then respectively and are located under actuator 3
The longitudinal rail that two guide rollers 2 in portion are subject to when moving along outer tube 1 rear wall and longitudinal rail 16 set by antetheca respectively applies
Power；Fn be roller along the ramp 14 of actuator 1 side V-shaped groove and lower inclined plane 15 roll when, the inclined-plane being subject to is applied
Power.
By Kd=F/ Δ ud、Δud=Δ ut×(cot11°)、ΔutCot11 ° of=F/ktThree formulas can get Kd=
(tan11°)2·kt.Wherein F is to assume for derivation rigidity to be applied on actuator along longitudinal power；KdIt is miniature inclined-plane vibration damping
The longitudinal rigidity of device, ktIt is the rigidity of extension spring；ΔudWith Δ utIt is that length travel and the corresponding extension spring of actuator is stretched respectively
Amount.Because respectively there is an extension spring miniature inclined-plane vibroshock both sides, two extension springs are parallel relationship, therefore kt=2 × 1.104N/mm
=2.208N/mm, therefore the estimated value that can get the longitudinal rigidity of single miniature inclined-plane vibroshock is about Kd=0.0834N/mm；Right
In the exemplary construction of Fig. 6, vertical direction is supported by four miniature inclined-plane vibroshocks in parallel, and therefore whole vibration-proof structure is vertical
The rigidity in direction is Kv=4Kd=0.3336N/mm.Consolidating of whole vibration-proof structure can be obtained by single-degree of freedom vibration formula for natural frequency
There is frequency(wherein m is the quality of foregoing vibration damping object, and its value is 80g), because
This meet the required 10Hz of design about natural frequency.
For a person skilled in the art, can make various corresponding according to above technical scheme and design
Change and deform, and all these changes and deformation should be construed as being included within the protection domain of the claims in the present invention.
Claims (5)
1. a kind of miniature inclined-plane vibroshock, including outer tube, actuator, guide roller, roller shaft, roller, roller bearing, its feature exists
In described actuator assembly is in described outer tube；It is equipped with described roller shaft, rolling in cavity set by actuator upper and lower
Equipped with described guide roller on wheel shaft；The two ends of described roller bearing are connected to described outer tube both sides, and described roller is then socketed
In described roller bearing；, along longitudinally all having a V-shaped groove, wherein the V-shaped groove of side is mainly by longitudinal upper and lower for the middle part of actuator both sides
The fillet that two sections of inclined-planes and this Liang Duan inclined-plane intersection smoothly transit is constituted, and described two sections of inclined-planes all become a clamp with longitudinal direction
Angle, and two angle angles are identical；Actuator lateral dimension at fillet is minimum.
2. miniature inclined-plane vibroshock according to claim 1 it is characterised in that described guide roller be in two ends with diameter greater than
The swelling-waist shape of mid diameter.
3. miniature inclined-plane vibroshock according to claim 1 is it is characterised in that described outer tube includes antetheca, rear wall and bottom
Wall three face barrel, its relative antetheca and rear wall are equipped with longitudinal rail, located at cavity set by described actuator upper and lower
In guide roller can be along described longitudinal rail lengthwise movement；Wherein said rear wall is provided with elastic block piece or twists into the thin of multiply
Tinsel, and antetheca is provided with the cavity volume matching with described roller.
4. miniature inclined-plane vibroshock according to claim 3 is it is characterised in that countersunk head is passed through in the both sides of described outer tube antetheca
Screw is equipped with spout, and the two ends of described roller bearing can be connected to the horizontal of setting on described spout respectively with performing relative motion
In groove.
5. miniature inclined-plane vibroshock according to claim 1 is it is characterised in that being respectively provided on two sides with least of described outer tube
A piece extension spring, all with drag hook, the drag hook of wherein one end is socketed in the manhole set by outer tube rear wall at the two ends of described extension spring
On, the drag hook hook joint of the other end on the roller bearing equipped with roller, by the elastic force of extension spring make roller all the time with actuator side
The set main V-shaped groove being made up of the fillet that longitudinal two sections inclined-plane and this Liang Duan inclined-plane intersection smoothly transit oblique
Face contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296128.1A CN104895987B (en) | 2015-06-02 | 2015-06-02 | A kind of miniature inclined-plane vibroshock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296128.1A CN104895987B (en) | 2015-06-02 | 2015-06-02 | A kind of miniature inclined-plane vibroshock |
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| Publication Number | Publication Date |
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| CN104895987A CN104895987A (en) | 2015-09-09 |
| CN104895987B true CN104895987B (en) | 2017-03-01 |
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| CN204692426U (en) * | 2015-06-02 | 2015-10-07 | 西安电子科技大学 | A kind of miniature inclined-plane vibration damper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4026916B2 (en) * | 1998-02-27 | 2007-12-26 | キヤノン株式会社 | Damper device and image processing device |
| JP4328400B2 (en) * | 1998-12-09 | 2009-09-09 | 株式会社エーエス | Seismic isolation device |
-
2015
- 2015-06-02 CN CN201510296128.1A patent/CN104895987B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4462955A (en) * | 1980-11-14 | 1984-07-31 | Framatome | Support device positioned between an element of large mass and a fixed support |
| CN203332129U (en) * | 2013-07-22 | 2013-12-11 | 济南轨道交通装备有限责任公司 | Framework-type bogie damping device |
| CN104196952A (en) * | 2014-07-14 | 2014-12-10 | 西安电子科技大学 | Two-freedom-degree micro type flexible hinge vibration attenuation platform and vibration attenuation method |
| CN204692426U (en) * | 2015-06-02 | 2015-10-07 | 西安电子科技大学 | A kind of miniature inclined-plane vibration damper |
Non-Patent Citations (2)
| Title |
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| 一种大行程高精度柔顺滑移铰的刚度研究;葛世滨 等;《2014年电子机械与微波结构工艺学术会议论文集》;20140831;第319-232页 * |
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