CN106801716B - A kind of Mechanical molecular spring vibration isolation buffer unit - Google Patents
A kind of Mechanical molecular spring vibration isolation buffer unit Download PDFInfo
- Publication number
- CN106801716B CN106801716B CN201710216352.4A CN201710216352A CN106801716B CN 106801716 B CN106801716 B CN 106801716B CN 201710216352 A CN201710216352 A CN 201710216352A CN 106801716 B CN106801716 B CN 106801716B
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- China
- Prior art keywords
- piston
- vibration isolation
- end cover
- isolation buffer
- spring vibration
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- 238000002955 isolation Methods 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 230000036316 preload Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- -1 steel-wire isolator Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
This application discloses a kind of Mechanical molecular spring vibration isolation buffer units, Mechanical molecular spring vibration isolation buffer technology is using water as power transmission medium, using piston and pretensioned spring as load-bearing component, with the isolation damper of Mechanical molecular spring vibration isolation buffer technology design mainly by a main piston, multiple secondary pistons, cylinder body and upper end cover composition, main piston is for carrying quality, each time piston is connected with the pretensioned spring of a certain stiffness, water is filled in cylinder body, the Mechanical molecular spring vibration isolation buffer has distinct piecewise linearity rigidity, including carrying section, active section and limit section, high quiet low dynamic stiffness characteristics can be achieved, it is low with operating pressure, the features such as performance parameter is adjustable, especially suitable for low frequency heavy duty field.
Description
Technical field
The invention belongs to vibration isolation buffering device technical fields, and in particular to a kind of Mechanical molecular spring vibration isolation buffer unit.
Background technique
In Aeronautics and Astronautics, navigation and Vehicle Engineering, vibration is one of focal issue always.In general, meeting is vibrated
Cause structural fatigue to destroy, reduce instrumentation service performance, reduces riding comfort.In national defence, judder is even more
It will affect the viability and fight technical performance of weaponry.Passive vibration isolation technology because it is simple, at a low price, reliable the advantages that due to obtain
To being widely used, as metal spring vibration isolator, metallic rubber vibration isolator, rubber shock absorber, steel-wire isolator, air spring every
Shake device etc..But vibration isolating effect of these vibration isolators in heavily loaded low frequency field tends not to the expection for reaching people, wherein main
The problem of be exactly the problem of low intrinsic frequency and small quiet deformation can not get both under heavy duty.Molecule spring vibration isolation buffer technology is to use
The molecule spring function material that water and porous material with nanoscale hydrophobic microporous mix is as anti-vibration and shock medium, benefit
Critical pressure can be overcome to enter and escape the principle of hydrophobic microporous under high pressure with hydrone, realize that high quiet low dynamic rigidity is special
Property, molecule spring vibration isolation buffer technology is especially suitable for heavily loaded low frequency vibration isolation field.Molecule spring vibration isolation buffer technology work pressure
It is by force 20-200Mpa.
Mechanical molecular spring vibration isolation buffer technology of the present invention can be realized slow similar to molecule spring vibration isolation under low pressure
Rush the quiet low dynamic stiffness characteristic of height of technology.Before the pretightning force that hydraulic pressure can't overcome pretensioned spring to provide, vibration isolator
Rigidity is very big, for piston press water rigidity, once and hydraulic pressure can overcome the pretightning force, the rigidity of vibration isolator drastically reduces and goes out
Existing distinct turnover, once the excessive rubber pad contact from piston and preload block of deformation, rigidity sharply increase again.
Summary of the invention
The technical issues of solution: in order to overcome the deficiencies in the prior art, the application proposes a kind of Mechanical molecular bullet
Spring vibration isolation buffering device, with high quiet low dynamic stiffness characteristic, operating pressure is low, can realize performance design by changing design parameter
With the characteristics such as structure is simple, can be required to obtain a variety of solutions according to the same Vibration Absorbing System Design, suitable for different occasions,
Especially suitable for low frequency heavy duty vibration isolation field, solving low intrinsic frequency and small quiet deformation under heavy duty in the prior art can not get both
Technical problem.
Technical solution: a kind of Mechanical molecular spring vibration isolation buffer unit, the Mechanical molecular spring vibration isolation buffer unit packet
Include cylinder body, sealing ring, upper end cover, main piston, sunk screw, rubber washer, from piston, spring, pre-tighten block, rubber pad and
Water, the sealing ring are located on the contact surface of cylinder body and upper end cover, and upper end cover is equipped with one group of screw hole, and cylinder body passes through with upper end cover
Sunk screw in screw hole is fixedly connected；The hollow shaft toward cylinder body internal projection is equipped in the middle part of the upper end cover, the main piston is set
In the hollow shaft of upper end cover, main piston is Shang shape axis, is divided into vertical section and parallel-segment, and upper end cover center is equipped with through-hole, main work
Plug vertical section with the through-hole on upper end cover by being slidably matched, match by hollow shaft sliding, the sealing of main piston parallel-segment and upper end cover
It closes；One group of piston cylinder is equipped in cylinder body, described to be located in piston cylinder from piston, the contact surface between piston and cylinder body is lined with rubber
Rubber gasket cooperates from piston and piston cylinder sliding, sealing；Spring is arranged in piston cylinder, and is nested with outside piston, piston cylinder
Lower end is equipped with threaded hole, and the preload block is connect with the threaded hole of piston cylinder lower end, pre-tightens block upper surface and is lined with rubber pad, described
Water seal forms sealed hydraulic container by Master cylinder body, upper end cover, main piston and out of piston forms closed chamber.
A kind of optimal technical scheme as the application: screw hole quantity is 8 on the upper end cover；
A kind of optimal technical scheme as the application: the upper end cover central through hole quantity is 1.
A kind of optimal technical scheme as the application: the cylinder body inner piston cylinder quantity is 4.
A kind of optimal technical scheme as the application: there is hexagonal through-hole among the preload block, for placing interior hexagonal
Spanner carries out precommpression to spring.
A kind of optimal technical scheme as the application: the spring end is simultaneously tight, polishes.
The utility model has the advantages that
1. it acts synergistically by main piston and from piston, it can be lower than the high quiet low dynamic stiffness characteristic of realization under 3Mpa.
2. there is the application Mechanical molecular spring vibration isolation buffer unit high quiet low dynamic, working water to force down, design parameter mostly etc.
Feature has wide range of applications, particularly suitable for low frequency heavy duty field.
3. the work rigidity of Mechanical molecular spring vibration isolation buffer unit can be reduced by increasing the quantity from piston.
4. the work rigidity of Mechanical molecular spring vibration isolation buffer unit can be reduced by reducing the rigidity of spring.
5. Mechanical molecular spring vibration isolation buffer unit can be reduced with the area ratio from piston by reducing main piston
Work rigidity.
6. the bearing capacity of Mechanical molecular spring vibration isolation buffer unit can be increased by increasing the pre compressed magnitude of spring
Or operating pressure.
7. Mechanical molecular spring vibration isolation buffer unit vibration isolation demand can be met by increasing the length from piston cylinder
Deflection.
Detailed description of the invention
Fig. 1 is the application Mechanical molecular spring vibration isolation buffer unit structure schematic diagram.
Fig. 2 is the application Mechanical molecular spring vibration isolation buffer unit cylinder body top view.
Fig. 3 is the typical force-displacement curve of the application Mechanical molecular spring vibration isolation buffer unit.
Description of symbols: 1, cylinder body, 2, sealing ring, 3, upper end cover, 4, main piston, 5, sunk screw, 6, rubber washer,
7, from piston, 8, spring, 9, preload block, 10, rubber pad, 11, water.
Specific embodiment
The specific embodiment of the application is described in further detail with reference to the accompanying drawings of the specification.Following embodiment
It will be helpful to those skilled in the art and further understand the application, but do not limit the application in any form.It should be understood that
Be, to those skilled in the art, without departing from the concept of this application, can also make it is several deformation and
It improves.These belong to the protection scope of the application.
Embodiment 1:
As depicted in figs. 1 and 2, a kind of Mechanical molecular spring vibration isolation buffer unit, the Mechanical molecular spring vibration isolation buffering
Device include cylinder body 1, sealing ring 2, upper end cover 3, main piston 4, sunk screw 5, rubber washer 6, from piston 7, spring 8, pre-tighten
Block 9, rubber pad 10 and water 11, the water 11 are enclosed in by Master cylinder body 1, upper end cover 3, main piston 4 and the envelope formed from piston 7
In closed chamber room, sealed hydraulic container is formed；The sealing ring 2 is located on the contact surface of cylinder body 1 and upper end cover 3, is set on upper end cover 3
There are 8 screw holes, cylinder body 1 is fixedly connected with upper end cover 3 by the sunk screw 5 in screw hole；It is equipped in the middle part of the upper end cover 3 toward cylinder
The hollow shaft of protrusion, the main piston 4 are located in the hollow shaft of upper end cover 3 in vivo, and 4 Wei Shang shape axis of main piston is divided into vertical section
And parallel-segment, 3 center of upper end cover are equipped with 1 through-hole, 4 vertical section of main piston, by being slidably matched, increases with the through-hole on upper end cover 3
Add the lateral stability of whole device, hollow shaft sliding, the sealing cooperation of 4 parallel-segment of main piston and upper end cover 3；It is set in cylinder body 1
Have 4 piston cylinders, it is described from piston be located in piston cylinder it is described be located in piston cylinder from piston 7, between piston 7 and cylinder body 1
Contact surface be lined with rubber washer 6, from piston 7 and piston cylinder sliding, sealing cooperate；Spring 8 is arranged in piston cylinder, and is nested with
Outside piston 7, piston cylinder lower end is equipped with threaded hole, and the preload block 9 is connect with the threaded hole of piston cylinder lower end, pre-tightens block 9
Upper surface is lined with rubber pad 10, has hexagonal through-hole among the preload block 9, is carried out to spring 8 for placing allen wrench pre-
Compression can be changed the decrement of spring 8 by adjusting preload block 9, realize to the adjusting from piston pretightning force, 8 end of spring
Portion is simultaneously tight, polishes.
Apply pretightning force to from piston 7 by pre-tightening 9 pretensioned spring 8 of block, load compression main piston 4 is right in use process
Water applies pressure, when hydraulic pressure, which can not overcome, to be applied to from pretightning force on piston 7, remain stationary from piston 7, Mechanical molecular bullet
Spring vibration isolation buffering device rigidity increases, this stage is known as carrying section；After hydraulic pressure, which overcomes, to be applied to from pretightning force on piston 7,
It is slided since piston 7, Mechanical molecular spring vibration isolation buffer unit rigidity is to be nested with concatenated just from the spring 8 on piston 7
Degree, Mechanical molecular spring vibration isolation buffer unit rigidity reduce, referred to as active section；Hydraulic pressure continues growing, hydraulic pressure force from piston 7 after
Continuous slide into contacts from 7 bottom surface of piston with pad in the rubber pad 10 for pre-tightening 9 upper surface of block, Mechanical molecular spring vibration isolation buffer unit
Rigidity becomes larger again, this stage is limit section, and global stiffness characteristic shows high load-bearing rigidity, extremely low dynamic rate and high
The characteristic of rigidity is limited, Mechanical molecular spring vibration isolation buffer unit is provided simultaneously with the desirability of extremely low intrinsic frequency and small quiet deformation
Energy.The force-displacement curve of Mechanical molecular spring vibration isolation buffer unit generally shows the high-low-high stiffness characteristics of segmentation.Its
Typical stiffness curve is as shown in Figure 3.
The rigidity of Mechanical molecular spring works section can be adjusted by adjustment structure parameter, and active section rigidity is with from work
Plug 7 quantity increase and reduces, active section rigidity with main piston 4 and from piston area 7 accumulate the ratio between reduction and significantly reduce, with
The reduction of the rigidity of spring 8 and reduce.
The application Mechanical molecular spring vibration isolation buffer unit has the spies such as high quiet low dynamic, working water is forced down, design parameter is more
Point, has wide range of applications, and particularly suitable for low frequency heavy duty field, acts synergistically by main piston and from piston, can be low
High quiet low dynamic stiffness characteristic is realized under 3Mpa, present apparatus work water pressure is lower than molecule spring vibration isolation buffer technology in the prior art
Operating pressure is 20-200Mpa, can reduce Mechanical molecular spring vibration isolation buffer unit by increasing the quantity from piston
Work rigidity；The work rigidity of Mechanical molecular spring vibration isolation buffer unit can be reduced by reducing the rigidity of spring；It can be with
The work rigidity of Mechanical molecular spring vibration isolation buffer unit is reduced with the area ratio from piston by reduction main piston；It can lead to
The pre compressed magnitude of increase spring is crossed to increase the bearing capacity or operating pressure of Mechanical molecular spring vibration isolation buffer unit；It can lead to
Cross the deflection for increasing the length from piston cylinder to meet Mechanical molecular spring vibration isolation buffer unit vibration isolation demand.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
The specific embodiment of the application is described above.It is to be appreciated that the application be not limited to it is above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the application.
Claims (5)
1. a kind of Mechanical molecular spring vibration isolation buffer unit, it is characterised in that: the Mechanical molecular spring vibration isolation buffer unit packet
Include cylinder body (1), sealing ring (2), upper end cover (3), main piston (4), sunk screw (5), rubber washer (6), from piston (7), bullet
Spring (8) pre-tightens block (9), rubber pad (10) and water (11), and the sealing ring (2) is located at connecing for cylinder body (1) and upper end cover (3)
In contacting surface, upper end cover (3) is equipped with one group of screw hole, and cylinder body (1) and upper end cover (3) are fixed by the sunk screw (5) in screw hole
Connection；The hollow shaft toward cylinder body internal projection is equipped in the middle part of the upper end cover (3), the main piston (4) is located in upper end cover (3)
In empty axis, main piston (4) is Shang shape axis, is divided into vertical section and parallel-segment, and upper end cover (3) center is equipped with through-hole, and main piston (4) is perpendicular
With the through-hole on upper end cover (3) by being slidably matched, the hollow shaft of main piston (4) parallel-segment and upper end cover (3) slides, is close straight section
Envelope cooperation；One group of piston cylinder is equipped in cylinder body (1), it is described to be located in piston cylinder from piston (7), from piston (7) and cylinder body (1) it
Between contact surface be lined with rubber washer (6), from piston (7) and piston cylinder sliding, sealing cooperate；Spring (8) is arranged in piston cylinder
It is interior, and be nested with from piston (7) outside, piston cylinder lower end be equipped with threaded hole, it is described pre-tighten block (9) and piston cylinder lower end threaded hole
Connection, spring (8) end is simultaneously tight, polishes, and pre-tightens block (9) upper surface and is lined with rubber pad (10), the water (11) is enclosed in
By cylinder body (1), upper end cover (3), main piston (4) and out of, piston (7) forms closed chamber, sealed hydraulic container is formed.
2. Mechanical molecular spring vibration isolation buffer unit according to claim 1, it is characterised in that: on the upper end cover (3)
Screw hole quantity is 8.
3. Mechanical molecular spring vibration isolation buffer unit according to claim 1, it is characterised in that: in the upper end cover (3)
Heart number of openings is 1.
4. Mechanical molecular spring vibration isolation buffer unit according to claim 1, it is characterised in that: living in the cylinder body (1)
Plug tube quantity is 4.
5. Mechanical molecular spring vibration isolation buffer unit according to claim 1, it is characterised in that: in the preload block (9)
Between have hexagonal through-hole, for place allen wrench to spring (8) carry out precommpression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216352.4A CN106801716B (en) | 2017-04-05 | 2017-04-05 | A kind of Mechanical molecular spring vibration isolation buffer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216352.4A CN106801716B (en) | 2017-04-05 | 2017-04-05 | A kind of Mechanical molecular spring vibration isolation buffer unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106801716A CN106801716A (en) | 2017-06-06 |
| CN106801716B true CN106801716B (en) | 2019-01-18 |
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| CN201710216352.4A Expired - Fee Related CN106801716B (en) | 2017-04-05 | 2017-04-05 | A kind of Mechanical molecular spring vibration isolation buffer unit |
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| CN108050197B (en) * | 2017-11-10 | 2019-06-04 | 南京航空航天大学 | Molecule spring vehicle suspension |
| CN107956835B (en) * | 2017-11-10 | 2019-05-03 | 南京航空航天大学 | Controllable damping molecule spring vehicle suspension |
| CN108223673B (en) * | 2017-12-08 | 2020-11-20 | 南京航空航天大学 | Light mechanical molecule spring vibration isolation buffer device |
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| CN110878808B (en) * | 2019-11-29 | 2021-07-06 | 徐州九鼎锻造科技有限公司 | Hydraulic damping device for engineering machinery |
| CN112253672B (en) * | 2020-10-27 | 2022-03-08 | 哈尔滨工程大学 | Double-material type spring vibration isolation buffer |
| CN112963487A (en) * | 2021-01-22 | 2021-06-15 | 中国人民解放军92578部队 | Piston type molecular spring vibration isolator |
| CN114542658B (en) * | 2022-03-04 | 2024-03-12 | 西安热工研究院有限公司 | Nuclear power station vibration reduction system based on circulating water pump |
| CN114909427B (en) * | 2022-04-24 | 2023-05-23 | 中国人民解放军92578部队 | Single-body capsule type molecular spring vibration isolator and assembly method |
| CN114857196A (en) * | 2022-05-02 | 2022-08-05 | 西南交通大学 | High-buffering quasi-plasticity combined spring buffer |
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| JP2011231791A (en) * | 2010-04-23 | 2011-11-17 | Bridgestone Corp | Structure of air spring type pressure vessel |
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| CN105041943B (en) * | 2015-07-24 | 2016-06-15 | 南京航空航天大学 | Bellows molecule spring vibration isolation buffer |
| CN106351995A (en) * | 2016-11-16 | 2017-01-25 | 西安航空动力控制科技有限公司 | Hyperbolic variable spring rigidity mechanism |
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2017
- 2017-04-05 CN CN201710216352.4A patent/CN106801716B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN2667239Y (en) * | 2004-01-13 | 2004-12-29 | 北京理工大学 | Metal shell type current variable vibration isolator |
| CN1978936A (en) * | 2005-12-09 | 2007-06-13 | 中国船舶重工集团公司第七一○研究所 | Flow-throttling hole hydraulic buffer |
| JP2011231791A (en) * | 2010-04-23 | 2011-11-17 | Bridgestone Corp | Structure of air spring type pressure vessel |
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| Publication number | Publication date |
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| CN106801716A (en) | 2017-06-06 |
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Effective date of registration: 20181128 Address after: No. 29, Qinhuai District, Qinhuai District, Nanjing, Jiangsu Applicant after: Nanjing University of Aeronautics and Astronautics Address before: Room 1612, Rhineplatinum County Building, 228 Tianyuan East Road, Jiangning District, Nanjing City, Jiangsu Province Applicant before: Chen Qian |
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