CN106763462A - Fluid pressure type active shock isolator - Google Patents
Fluid pressure type active shock isolator Download PDFInfo
- Publication number
- CN106763462A CN106763462A CN201710070484.0A CN201710070484A CN106763462A CN 106763462 A CN106763462 A CN 106763462A CN 201710070484 A CN201710070484 A CN 201710070484A CN 106763462 A CN106763462 A CN 106763462A
- Authority
- CN
- China
- Prior art keywords
- piston
- upper bush
- push pedal
- lower sleeve
- fluid pressure
- 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.)
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Classifications
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Abstract
Fluid pressure type active shock isolator, the isolator includes connecting rod, piston A, spring A, push pedal A, upper bush, fixed plate, lower sleeve, push pedal B, spring B and piston B；It in existing naval vessel primarily directed to, to the shock isolation demand of position accuracy demand equipment very high, different shock environments being adapted to by the prefastening load of the flexible member of adjust automatically shock isolator, for meeting such equipment anti-shock purpose.
Description
Technical field
The invention belongs to impact isolating technical field, it is related to a kind of shock resistance isolator, it is more particularly to a kind of to be used for inertia
The fluid pressure type active shock isolator of navigation precision equipment.
Background technology
Naval vessel is inevitably attacked in operation by all kinds of weapons such as submarine mine, torpedo, it is resulting under water
Although noncontact Explosive Shock Loading will not directly contribute the destruction of warship structure.There is the survey such as compass, fire control radar on naval vessels
Amount, detecting devices, it is very high to position accuracy demand, even if also result in can not be normal in the one section time for the disturbance of very little
Work.Shock resistance isolator for this kind equipment, it is necessary to keep equipment approximate with warship body can rigidly install, to realize this
One function, can set a certain amount of prefastening load inside isolator to flexible member, can resist extraneous less disturb
It is dynamic, and when shock loading is more than prefastening load, the shock loading of the equipment that is transferred to is reduced by the deformation of internal elastomeric.But
It is that in sea warfare, the different quick-fried surge waveforms produced away from it are different, and surge waveform is influence shock isolator impact isolating
One key factor of performance.Single prefastening load does not adapt to different shock environments, in order to be directed to different shock environments
Design different prefastening loads, thus strengthen precision equipment every the ability of rushing.Therefore, it is necessary to invent one kind can actively, quickly
Adjusting the shock isolator of prefastening load is used to increase the anti-impact of equipment to position accuracy demand equipment very high in naval vessel
Hit the positional precision of performance and stabilization.
The content of the invention
Goal of the invention：The present invention provides a kind of fluid pressure type active shock isolator, in the past existing the purpose is to solve
Problem.
Technical scheme：The present invention is achieved by the following technical solutions：
Fluid pressure type active shock isolator, it is characterised in that：The isolator includes connecting rod, piston A, spring A, push pedal A, upper set
Cylinder, fixed plate, lower sleeve, push pedal B, spring B and piston B；
Described piston A, spring A and push pedal A are arranged in upper bush, and the upper set being connected with sleeve upper end is additionally provided with sleeve
Cylinder slide wall, piston A is enclosed within upper bush slide wall and is connected and forms sliding pair with the contact of upper bush slide wall；Described push pedal A's pushes away
Plate outer wall and the contact of upper bush inwall are connected and form sliding pair；Described spring A is arranged between piston A and push pedal A；
Described push pedal B and piston B is arranged in lower sleeve, and it is to form sliding pair that can be slided along lower sleeve inwall；It is described
Spring B be arranged between push pedal B and piston B；
Upper bush connects lower sleeve, and the bar of described connecting rod passes through the upper bush chute of upper bush slide wall, and is slided with upper bush
Groove contact is connected and forms sliding pair, and connecting rod connection tension and compression plate, tension and compression plate upper and lower surface is contacted with push pedal A and push pedal B respectively
Connection.
Dynamic sealing between piston A and upper bush slide wall, dynamic sealing between piston A and upper bush inwall；Piston B and lower sleeve
Lower sleeve inwall between dynamic sealing.
The side wall of the upper bush above piston A is provided with by the upper bush oilhole above hydraulic oil injection piston A, in work
The side wall of the lower sleeve below plug B is provided with the lower sleeve oilhole below hydraulic oil injection piston B.
The inner ring of described piston A is provided with inner seal ring, and inner seal ring is connected and forms cunning with the contact of upper bush slide wall
Dynamic pair；The outer shroud of piston A is provided with exterior seal ring, and exterior seal ring is connected and forms sliding pair with the contact of upper bush inwall.
Fixed plate is provided between upper bush and lower sleeve, is connected for gap coordinates between tension and compression plate outer wall and fixed plate inwall
Connect and formed sliding pair.
The periphery of piston B is provided with piston B sealing rings, and connection and shape are contacted between piston B sealing rings and lower sleeve inwall
Into sliding pair.
The bar upper end connection equipment of connecting rod.
Described lower sleeve is arranged on connecting plate contact surface.
Advantageous effect：The present invention provides a kind of fluid pressure type active shock isolator, and it is primarily directed to right in existing naval vessel
The shock isolation demand of position accuracy demand equipment very high, is carried by the pretension of the flexible member of adjust automatically shock isolator
Lotus adapts to different shock environments, for meeting such equipment anti-shock purpose.
The beneficial effects of the invention are as follows：
（1）From for function, when shock loading is smaller（Pretightning force of the load less than spring）, it is ensured that spring is indeformable,
Precision instrument and naval vessels by insulation blocking do not have relative motion, are particular enable to ensure the precision of navigator, when shock loading compared with
When big, flexible member is had an effect to its buffer protection function of navigator.
（2）By judging shock loading waveform in advance, so that quickly the pretension of the flexible member of adjustment shock isolator is carried
Lotus, the equipment anti-shock ability very high to position accuracy demand in efficient raising naval vessel.
Brief description of the drawings：
Fig. 1 fluid pressure type active shock isolator schematic diagrames
Fig. 2 fluid pressure type active shock isolator sectional views
Fig. 3 fluid pressure type active shock isolator sectional views（Without spring）
Fig. 4 connecting rod structure charts
Fig. 5 piston A structure charts
Fig. 6 spring structure figures
Fig. 7 push pedal A structure charts
Fig. 8 upper bush structure charts
Fig. 9 fixed plate structure figures
Figure 10 lower sleeve structure charts
Figure 11 push pedal B structure figures
Figure 12 piston B structure figures
Figure 13 connecting board structure figures.
Specific embodiment：
As shown in figure 1, invention provides a kind of fluid pressure type active shock isolator,
As shown in Figure 1 to Figure 3, a kind of fluid pressure type active shock isolator mainly includes：Equipment 1, connecting rod 2, piston A3, spring
A4, push pedal A5, upper bush 6, fixed plate 7, lower sleeve 8, push pedal B9, spring B 10, piston B11, connecting plate 12 and bolt 13.
As shown in figure 4, described connecting rod 2 includes：Connection screw thread 2-1, bar 2-2, tension and compression plate 2-3, described equipment 1 with
The connection screw thread 2-1 of connecting rod 2 is threadably secured connection；As shown in figure 5, described piston A3 includes：Piston interface 3-
1st, inner seal ring 3-2 and exterior seal ring 3-3.
As shown in fig. 6, described spring A4 includes：Spring contact surface A4-1, spring wall 4-2 and spring contact surface B4-3,
Described spring B 10 is identical with spring A4 structures；As shown in fig. 7, described push pedal A5 includes：Push pedal outer wall 5-1, push pedal inwall
5-2 and push pedal contact surface 5-3；As shown in figure 8, described upper bush 6 includes：Upper bush outer wall 6-1, upper bush slide wall 6-2, on
Sleeve chute 6-3, upper bush top surface 6-4, upper bush oilhole 6-5, upper bush inwall 6-6, upper bush flange 6-7 and upper bush method
Blue connecting hole 6-8；Described piston A3, spring A4 and push pedal A5 are arranged on the upper bush inwall 6-6 of upper bush 6；Described
The inner seal ring 3-2 of piston A3 is connected and forms sliding pair with upper bush slide wall 6-2 contacts；The push pedal outer wall of described push pedal A5
5-1 and upper bush inwall 6-6 contacts are connected and form sliding pair；Described spring A4 is arranged between piston A3 and push pedal A5；
The bar 2-2 of described connecting rod 2 is connected and forms sliding pair with upper bush chute 6-3 contacts, on the tension and compression plate 2-3 of connecting rod 2
Lower surface is connected with push pedal A5 and push pedal B9 contacts respectively, and tension and compression plate 2-3 outer walls are with fixed plate inwall 7-2 for gap is connected
And form sliding pair.
As shown in figure 9, described fixed plate 7 includes：Fixed plate connecting hole 7-1, fixed plate inwall 7-2, fixed plate contact
Face 7-3 and fixed plate outer wall 7-4；As shown in Figure 10, described lower sleeve 8 includes：Lower sleeve inwall 8-1, drum flange of trapping connect
Meet hole 8-2, lower sleeve contact surface 8-3, trap drum outer wall 8-4 and lower sleeve oilhole 8-5；As shown in figure 11, described push pedal B9
Including：Push pedal B contact surfaces 9-1 and push pedal B walls 9-2；As shown in figure 12, described piston B11 includes：Piston B contact surfaces 11-1
With piston B sealing rings 11-2；Described push pedal B9 and piston B11 is arranged on lower sleeve inwall 8-1, and can be along in lower sleeve
Wall 8-1 is slided and is formed sliding pair；Described spring B 10 is arranged between push pedal B9 and piston B11；Described upper bush flange
Connecting hole 6-8, fixed plate connecting hole 7-1 are fixedly connected with lower sleeve flange connecting hole 8-2 by bolt 13.
As shown in figure 13, described connecting plate 12 includes：Connection plate hole 12-1 and connecting plate contact surface 12-2；Under described
Sleeve 8 is arranged on connecting plate contact surface 12-2, is fixedly connected by welding.
Described piston A3, spring A4 and push pedal A5 are arranged in upper bush 6, are additionally provided with and the upper end of sleeve 6 in sleeve 6
The upper bush slide wall 6-2 of connection, piston A3 are enclosed within upper bush slide wall 6-2 and are connected and form cunning with upper bush slide wall 6-2 contacts
Dynamic pair；Push pedal outer wall 5-1 and upper bush inwall the 6-6 contact of described push pedal A5 are connected and form sliding pair；Described spring
A4 is arranged between piston A3 and push pedal A5；
Described push pedal B9 and piston B11 is arranged in lower sleeve 8, and can slide i.e. formation slip along lower sleeve inwall 8-1
It is secondary；Described spring B 10 is arranged between push pedal B9 and piston B11；
Upper bush 6 connects lower sleeve 8, and the bar 2-2 of described connecting rod 2 passes through the upper bush chute 6-3 of upper bush slide wall 6-2,
And be connected and form sliding pair with upper bush chute 6-3 contacts, the connection tension and compression plate 2-3 of connecting rod 2, tension and compression plate 2-3 upper and lower surfaces
It is connected with push pedal A5 and push pedal B9 contacts respectively.
Dynamic sealing between piston A3 and upper bush slide wall 6-2, dynamic sealing between piston A3 and upper bush inwall 6-6；Piston
Dynamic sealing between B11 and the lower sleeve inwall 8-1 of lower sleeve 8.
The side wall of the upper bush 6 above piston A3 is provided with the upper bush oilhole 6- above hydraulic oil injection piston A3
5, the side wall of the lower sleeve 8 below piston B11 is provided with the lower sleeve oilhole 8-5 below hydraulic oil injection piston B11.
The inner ring of described piston A3 is provided with inner seal ring 3-2, and inner seal ring 3-2 contacts company with upper bush slide wall 6-2
Connect and formed sliding pair；The outer shroud of piston A3 is provided with exterior seal ring 3-3, and exterior seal ring 3-3 is connected with the contact of the inwall of upper bush 6
And form sliding pair.
Fixed plate 7 is provided between upper bush 6 and lower sleeve 8, is between tension and compression plate 2-3 outer walls and fixed plate inwall 7-2
Gap is connected and forms sliding pair.
The periphery of piston B11 is provided with piston B sealing ring 11-2, between piston B sealing rings 11-2 and lower sleeve inwall 8-1
Contact is connected and forms sliding pair.
The bar 2-2 upper ends connection equipment 1 of connecting rod 2.
The automatic pre-pressing structure of fluid pressure type, before equipment 1 is impacted, by judging shock loading in advance so as to adjust bullet
Spring pretightning force come adapt to shock loading waveform change, farthest to strengthen the impact resistance of equipment and ensure inertial navigation
The stability of equipment 1.Specific method is as follows, respectively in the upper bush oilhole 6-5 and the lower sleeve oilhole of lower sleeve 8 of upper bush 6
8-5 injects hydraulic oil, so as to promote the pretension of piston A3 and piston B11 movements and compression spring A4 and the change spring of spring B 10
Power, can shift to an earlier date the shift motion of quick regulation piston and change initial tension of spring according to different impact.
Connecting plate 12 is moved upwards under the effect of forward impact load, and equipment 1 keeps original inactive state, so equipment 1
Moved downward with respect to connecting plate 12, equipment 1 pushes connecting rod 2 and moves downward, the tension and compression plate 2-3 of connecting rod 2 push push pedal B9 to
Lower motion, so that compression spring B10, until its kinetic energy to be completely converted into the stop motion of equipment 1 elastic potential energy of spring B 10.
After the stop motion of equipment 1, due to the self-recovery power of spring B 10 effect, spring B 10 upwards head on push pedal B9 and
The tension and compression plate 2-3 of connecting rod 2, so that pushing equipment 1 is moved upwards, the dynamic of equipment 1 is converted into by the elastic potential energy of spring B 10
Energy；So equipment 1 is continued up, the tension and compression plate 2-3 of connecting rod 2 heads on push pedal A5 and moves upwards, and compression spring A4,
Up to the stop motion of equipment 1, the kinetic energy of equipment 1 is converted into the elastic potential energy of spring A4.
Because the restoring force of spring A4 itself is acted on, spring A4 pushes downwards the tension and compression plate 2-3 of push pedal A5 and connecting rod 2,
So as to pushing equipment 1 is moved downward, the elastic potential energy of spring A4 is converted into the kinetic energy of equipment 1.
Equipment produces shock response constantly in up-down vibration, kinetic energy and the spring of equipment 1 under impact loading
Elastic potential energy is constantly converted, until consumption is zero, stop motion.
Claims (8)
1. fluid pressure type active shock isolator, it is characterised in that：The isolator includes connecting rod（2）, piston A（3）, spring A
（4）, push pedal A（5）, upper bush（6）, fixed plate（7）, lower sleeve（8）, push pedal B（9）, spring B（10）With piston B（11）；
Described piston A（3）, spring A（4）With push pedal A（5）Installed in upper bush（6）It is interior, sleeve（6）Inside it is additionally provided with and set
Cylinder（6）The upper bush slide wall of upper end connection（6-2）, piston A（3）It is enclosed within upper bush slide wall（6-2）Upper and upper bush slide wall（6-2）
Contact is connected and forms sliding pair；Described push pedal A（5）Push pedal outer wall（5-1）With upper bush inwall（6-6）Contact connection is simultaneously
Form sliding pair；Described spring A（4）Installed in piston A（3）With push pedal A（5）Between；
Described push pedal B（9）With piston B（11）Installed in lower sleeve（8）It is interior, and can be along lower sleeve inwall（8-1）Slip is
Form sliding pair；Described spring B（10）Installed in push pedal B（9）With piston B（11）Between；
Upper bush（6）Connection lower sleeve（8）, described connecting rod（2）Bar（2-2）Through upper bush slide wall（6-2）Upper set
Cylinder chute（6-3）, and with upper bush chute（6-3）Contact is connected and forms sliding pair, connecting rod（2）Connection tension and compression plate（2-3）,
Tension and compression plate（2-3）Upper and lower surface respectively with push pedal A（5）With push pedal B（9）Contact connection.
2. fluid pressure type active shock isolator according to claim 1, it is characterised in that：Piston A（3）With upper bush slide wall
（6-2）Between dynamic sealing, piston A（3）With upper bush inwall（6-6）Between dynamic sealing；Piston B（11）With lower sleeve（8）Under
Sleeve lining（8-1）Between dynamic sealing.
3. fluid pressure type active shock isolator according to claim 2, it is characterised in that：In piston A（3）The upper set of top
Cylinder（6）Side wall be provided with hydraulic oil injection piston A（3）The upper bush oilhole of top（6-5）, in piston B（11）Lower section
Lower sleeve（8）Side wall be provided with hydraulic oil injection piston B（11）The lower sleeve oilhole of lower section（8-5）.
4. fluid pressure type active shock isolator according to claim 2, it is characterised in that：Described piston A（3）Inner ring
It is provided with inner seal ring（3-2）, inner seal ring（3-2）With upper bush slide wall（6-2）Contact is connected and forms sliding pair；Piston A
（3）Outer shroud be provided with exterior seal ring（3-3）, exterior seal ring（3-3）With upper bush（6）Inwall contact is connected and forms slip
It is secondary.
5. fluid pressure type active shock isolator according to claim 1, it is characterised in that：Upper bush（6）With lower sleeve（8）
Between be provided with fixed plate（7）, tension and compression plate（2-3）Outer wall and fixed plate inwall（7-2）Between for gap is connected and is formed
Sliding pair.
6. fluid pressure type active shock isolator according to claim 2, it is characterised in that：Piston B（11）Periphery setting
There are piston B sealing rings（11-2）, piston B sealing rings（11-2）With lower sleeve inwall（8-1）Between contact connect and form slip
It is secondary.
7. fluid pressure type active shock isolator according to claim 1, it is characterised in that：Connecting rod（2）Bar（2-2）On
End connection equipment（1）.
8. fluid pressure type active shock isolator according to claim 1, it is characterised in that：Described lower sleeve（8）Install
In connecting plate contact surface（12-2）On.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016108870948 | 2016-10-11 | ||
| CN201610887094 | 2016-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106763462A true CN106763462A (en) | 2017-05-31 |
| CN106763462B CN106763462B (en) | 2019-08-02 |
Family
ID=58956013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070484.0A Active CN106763462B (en) | 2016-10-11 | 2017-02-09 | Fluid pressure type active shock isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106763462B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757800A (en) * | 2018-06-25 | 2018-11-06 | 北京航空航天大学 | Buffer unit |
| CN109723751A (en) * | 2018-12-17 | 2019-05-07 | 汪玉 | A kind of shock resistance isolator of liquid medium |
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| CN103291798A (en) * | 2013-05-29 | 2013-09-11 | 南京航空航天大学 | Bidirectional flexible supporting device with adjustable pretightening force |
| CN105864349A (en) * | 2016-05-16 | 2016-08-17 | 沈阳工业大学 | Hydraulic automatic pre-tightening shock isolator |
| CN206478159U (en) * | 2016-10-11 | 2017-09-08 | 沈阳工业大学 | Fluid pressure type active shock isolator |
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2017
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| JPS5999134A (en) * | 1982-11-30 | 1984-06-07 | Showa Mfg Co Ltd | Spring load regulating mechanism of shock absorber |
| CN1046376A (en) * | 1989-04-14 | 1990-10-24 | 清华大学 | Hydraulic frequency-tracking power method for vibration and vibration absorber |
| JP2003307245A (en) * | 2002-04-15 | 2003-10-31 | Kayaba Ind Co Ltd | Spring force regulating structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108757800A (en) * | 2018-06-25 | 2018-11-06 | 北京航空航天大学 | Buffer unit |
| CN109723751A (en) * | 2018-12-17 | 2019-05-07 | 汪玉 | A kind of shock resistance isolator of liquid medium |
| CN109723751B (en) * | 2018-12-17 | 2020-08-18 | 汪玉 | Impact-resistant isolator for liquid medium |
Also Published As
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|---|---|
| CN106763462B (en) | 2019-08-02 |
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