CN109281971A - A kind of high-performance vibration reduction device - Google Patents
A kind of high-performance vibration reduction device Download PDFInfo
- Publication number
- CN109281971A CN109281971A CN201811244108.XA CN201811244108A CN109281971A CN 109281971 A CN109281971 A CN 109281971A CN 201811244108 A CN201811244108 A CN 201811244108A CN 109281971 A CN109281971 A CN 109281971A
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- Prior art keywords
- pedestal
- support wire
- wire net
- supporting cover
- damping assembly
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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
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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
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/121—Attachments or mountings adjustable, e.g. to modify spring characteristics
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to damper fields, and specifically disclose a kind of high-performance vibration reduction device comprising frame structure, stiffness changing structure and main bearing structure, frame structure include Supporting cover and the pedestal below Supporting cover；Stiffness changing structure includes center pivot, upper damping assembly and lower damping assembly, center pivot passes through the upper end of pedestal and Supporting cover is connected, upper damping assembly and lower damping assembly are sleeved on center pivot, upper damping assembly is between pedestal and Supporting cover, and lower damping assembly is between pedestal and the shaft shoulder of center pivot；Main bearing structure includes spring fastening and support spring, the lower section of the centrally disposed fulcrum of spring fastening, and with the movable connection of pedestal, between the shaft shoulder and spring fastening of the centrally disposed fulcrum of support spring.The invention can ensure that damper is always worked under a normal load in Low rigidity section, have many advantages, such as that structure is simple, strong applicability.
Description
Technical field
The invention belongs to damper fields, more particularly, to a kind of high-performance vibration reduction device.
Background technique
The power and torque of armored vehicle power device used above are all very big, are the main vibration sources on vehicle, in addition
The running environment of vehicle is complicated severe, and interior space closing is compact, and prolonged vibration and noise can seriously affect vehicle drive
The health of personnel and member also will affect the service life of related mobile unit.Therefore, need to develop it is a kind of can be in severe ring
The vibration absorber of the power device of long-term work under border, to alleviate the vibration and noise problem on panzer.
General damping material such as rubber etc. is poor to the adaptability of working environment, perishable, easy to aging.Wire
Net materials are the flexible metallic articles made of cold stamping after one kind is wound wire according to certain rule braiding,
It is very strong to the adaptability of adverse circumstances with stronger bearing capacity due to being metal material, suitable for being produced on height
The damper to work under the special operation conditions such as warm, the big temperature difference, vacuum and strong corrosive.
Common rigidity of the Metal-net Vibration Isolator under nominal situation load is larger on panzer at present, and rigidity
Numerical value is not easily controlled, and is caused panzer power device to be transmitted to the intracorporal noise of vehicle and vibration still than more serious, is into one
Step improves the comfort and service life of armored vehicle, needs to further improve the anti-vibration performance of damper.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of high-performance vibration reduction device, purposes
It is excessive to be to solve existing Metal-net Vibration Isolator rigidity under nominal situation load, leads to the problem that anti-vibration performance is bad,
For the combination type high-performance damper for possessing main bearing structure and stiffness changing structure, the precommpression of adjusting support spring can be passed through
It measures to compensate the fluctuation of load, guarantees that damper is always worked under a normal load in Low rigidity section, according to the variation of load
Can express good rigidity adaptive, have many advantages, such as structure simply, strong applicability, suitable for complicated adverse circumstances
In the move vehicle of operation, such as in panzer power device suspension system.
To achieve the above object, the invention proposes a kind of high-performance vibration reduction devices comprising frame structure, stiffness changing structure
With main bearing structure, in which:
The frame structure includes Supporting cover and the pedestal below Supporting cover；
The stiffness changing structure includes center pivot, upper damping assembly and lower damping assembly, and the center pivot passes through base
The upper end of seat is simultaneously connected with the Supporting cover above pedestal, and the upper damping assembly and lower damping assembly are sleeved on center pivot
On, damping assembly is between pedestal and Supporting cover on this comprising the upper soft support wire net stacked gradually from top to bottom
With upper hard support wire net, the lower damping assembly is between pedestal and the shaft shoulder of center pivot comprising from top to bottom according to
The lower hard support wire net of secondary stacking soft support wire net under；
The main bearing structure includes spring fastening and support spring, under the centrally disposed fulcrum of spring fastening
Side, and with the movable connection of pedestal, between the shaft shoulder and spring fastening of the centrally disposed fulcrum of support spring.
As it is further preferred that the main bearing structure further includes adjusting cushion block, which passes through interior hexagonal spiral shell
Nail is mounted on the lower section of spring fastening, is additionally provided with adjusting gasket between adjusting cushion block and the spring fastening.
As it is further preferred that be provided with upper seal between the outer surface of the pedestal and the inner surface of Supporting cover,
Lower seal is provided between the outer surface for adjusting cushion block and the inner surface of pedestal.
As it is further preferred that the pedestal is the cavity structure of upper end closed, lower ending opening, the interior appearance of the upper end
The upper groove for installing damping assembly and the lower groove for installing lower damping assembly that face offers coaxial arrangement.
As it is further preferred that the upper end of the pedestal is also provided with the through-hole concentric with lower notches, used in supplying
Heart fulcrum passes through.
As it is further preferred that the outer surface of the pedestal offers the annular groove for installing upper seal.
As it is further preferred that the Supporting cover is similarly the cavity structure of upper end closed, lower ending opening, the upper end
Outer surface is provided with the boss with taper, and inner surface is provided with ladder boss structure, for positioning upper damping assembly, the ladder
It is provided with threaded hole in the middle part of boss, for connecting center pivot.
As it is further preferred that the spring fastening side is provided with waist-shaped hole, by that will be mounted on side of base
Outer-hexagonal bolt passes through the waist-shaped hole, realizes the movable connection of spring fastening and pedestal.
As it is further preferred that making support spring generation precommpression by adjusting cushion block and compress upwards when original state
Amount has gap between the first order boss face of Supporting cover inner step boss and upper soft support wire net, this soft branch at present
Support wire mesh, lower hard support wire net and support spring are all compressed, soft branch under the initial global stiffness of damper is equal to
Support the rigidity of support spring on the Stiffness after wire mesh is connected with lower hard support wire net.
As it is further preferred that when work, when Supporting cover is generated downward displacement by ambient pressure effect, under soft branch
Support wire mesh is relaxed with lower hard support wire net, so that the global stiffness of damper non-linearly reduces；When Supporting cover after
When continuing to bottom offset, under soft support wire net loosened completely with lower hard support wire net, the global stiffness of damper is equal to
The rigidity of support spring；When Supporting cover is further continued for bottom offset, Supporting cover is contacted with upper soft support wire net, so that upper soft
Support wire net and upper hard support wire net are compressed, and the global stiffness of damper is upper soft support wire net and upper hard branch
Rigidity after supportting wire mesh series connection adds the rigidity of support spring；When Supporting cover is generated upward displacement by external tensile force effect
When, under soft support wire net and lower hard support wire net it is compressed tighter, generate the non-linear rigidity to increase sharply.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, mainly have below
Technological merit:
1. the high-performance vibration reduction device of researching and designing of the present invention is made by the mutual cooperation of frame structure and stiffness changing structure
With can show good rigidity adaptive according to the variation of load, have many advantages, such as that structure is simple, strong applicability.
2. the high-performance vibration reduction device of researching and designing of the present invention is at work, following characteristic is shown: when pushing, just starting
Rigidity can be gradually reduced, if continuing to push, rigidity can be reduced to a definite value, and remain unchanged in one section of pushing displacement,
If damper continues to push, rigidity can non-linearly increase rapidly, and when damper is pulled up, rigidity can non-linearly increase always
Greatly.
3. the rigidity section under the high-performance vibration reduction device normal load of researching and designing of the present invention is to push in displacement section
The constant section of that section of rigidity, only support spring plays a supportive role in damper at this time, and the rigidity shown is lower, can be with
Good effectiveness in vibration suppression is brought, if the displacement of damper has been more than normal operation interval because of the variation of load, damper
Rigidity can increase rapidly that displacement is allowed to stop, and play position-limiting action.
4. the high-performance vibration reduction device of researching and designing of the present invention can easily replace the quantity of adjustment gasket from bottom, to adjust
Pre compressed magnitude of the whole support spring after damper installation, so as to adjust the proper working load of damper.
5. the wire mesh compared to traditional Metal-net Vibration Isolator, in the high-performance vibration reduction device of researching and designing of the present invention
It only just works when the load of damper is more than normal load, only support spring is rising in damper in normal load range
Effect.
Detailed description of the invention
Fig. 1 is the positive half sectional view of high-performance vibration reduction device of the present invention；
Fig. 2 is the appearance schematic diagram of high-performance vibration reduction device of the present invention；
Fig. 3 is the three-dimensional cutaway view of Supporting cover；
Fig. 4 is the three-dimensional cutaway view of pedestal；
Fig. 5 is the structural schematic diagram of center pivot；
Fig. 6 is the structural schematic diagram for adjusting cushion block；
Fig. 7 is the structural schematic diagram of adjusting gasket；
Fig. 8 is the structural schematic diagram of spring fastening；
Fig. 9 is the side sectional view of high-performance vibration reduction device of the present invention；
Figure 10 is the cross-sectional view after high-performance vibration reduction device of the present invention is installed in place；
Figure 11 is the rigidity and change in displacement graph of relation of high-performance vibration reduction device of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
As shown in Figs. 1-2, a kind of high-performance vibration reduction device provided in an embodiment of the present invention comprising frame structure, variation rigidity
Structure and main bearing structure, wherein frame structure, for installing stiffness changing structure and main bearing structure, becomes rigid as installation foundation
Core component of the structure as high-performance vibration reduction device is spent, for realizing variation rigidity cushioning effect, main bearing structure is as high-performance
The core component of damper, for adjusting the proper working load of damper.
As shown in Figs. 1-2, frame structure includes Supporting cover 1 and the pedestal 8 positioned at 1 lower section of Supporting cover.As shown in figure 3, branch
Support lid 1 is the cavity structure of upper end closed, lower ending opening, and body contours by both ends are semicylinder, centre is cuboid
Combination of shapes forms, and upper surface is equipped with the boss with taper, and the boss with taper is equipped with for the screw thread with external connection
Hole, the inside of Supporting cover 1 are cavitys corresponding with outer shape, and wherein upper end inner surface is equipped with ladder boss, for positioning
Damping assembly, being located above in ladder boss is first boss, and underlying is second boss, is equipped in the middle part of ladder boss
Threaded hole, for being connected with center pivot 7.
As shown in figure 4, pedestal 8 is the cavity structure of upper end closed, lower ending opening, the surfaces externally and internally of the upper end is offered together
The upper groove and lower groove of axis setting, wherein upper groove is for installing damping assembly, and lower groove is for installing lower vibration damping group
Part, the upper end of pedestal 8 are also provided with the through-hole concentric with upper and lower groove, for being passed through for center pivot 7, the outer surface of pedestal 8
Upper seal 4 is provided between the inner surface of Supporting cover 1, the outer surface of pedestal 8 offers the ring for installing upper seal 4
Connected in star, the lower part of pedestal 8 are provided with outwardly extending bottom plate, offer through-hole on bottom plate, for by bolt make pedestal with
The external world is fixed.
As shown in Figs. 1-2, stiffness changing structure includes center pivot 7, upper damping assembly and lower damping assembly, wherein center
The upper end of fulcrum 7 passes through the through-hole of 8 upper end of pedestal, and is connected with the threaded hole in Supporting cover 1, upper damping assembly and lower vibration damping group
Part is sleeved on center pivot 7, and damping assembly is between pedestal 8 and Supporting cover 1 on this, specifically, upper damping assembly set
It in the second boss of ladder boss, and is inlaid in the upper groove of pedestal 8, damping assembly includes from top to bottom successively on this
The upper soft support wire net 2 and upper hard support wire net 3 stacked.The lower damping assembly is located at pedestal 8 and center pivot 7
Between the shaft shoulder, specifically, be inlaid in the lower groove of pedestal 8, the lower damping assembly include stack gradually from top to bottom it is lower hard
The soft support wire net 6 under of support wire net 5, upper soft support wire net, upper hard support wire net, lower hard support gold
Belong to silk screen and under soft support wire net be all as stainless steel wire establishment compacting made of ring-shaped work pieces.
As shown in Figure 1, main bearing structure includes spring fastening 11 and support spring 9, the centrally disposed branch of spring fastening 11
The lower section of axis 7, and with the movable connection of pedestal 8, between the shaft shoulder and spring fastening 11 of the centrally disposed fulcrum 7 of support spring 9.
As shown in figure 5, center pivot 7 is stepped shaft structure, upper end is equipped with external screw thread, for revolving and connecting with Supporting cover 1,
The other end is equipped with the shaft shoulder for load, and the outer-hexagonal ladder boss for connecting with external hexagonal sleeve, uses outer-hexagonal
The external screw thread of 7 upper end of center pivot is screwed and is mounted on the threaded interior hole of Supporting cover 1 by sleeve in which can be convenient, outer-hexagonal ladder
Boss plays the installation position-limiting action to support spring 9 simultaneously.
Further, main bearing structure further includes adjusting cushion block 14, adjusts the structure of cushion block 14 as shown in fig. 6, the adjusting
Cushion block 14 is mounted on the lower section of spring fastening 11 by soket head cap screw 15, adjusts and is provided between cushion block 14 and spring fastening 11
Adjusting gasket 12, the structure of adjusting gasket 12 as shown in fig. 7, offer the unthreaded hole passed through for screw, specifically, spring branch thereon
Seat 11, adjusting gasket 12 and adjusting cushion block 14 are fixed together by soket head cap screw 15.Further, cushion block 14 is adjusted
Outer surface and pedestal 8 inner surface between be provided with lower seal 13, the outer surface for adjusting cushion block 14 is offered for installing
The annular groove of lower seal 13, support spring 9, spring fastening 11, adjusting gasket 12 and adjusting cushion block 14 constitute vibration damping
The main load carrier of device.The present invention can easily replace the quantity of adjusting gasket 12 by dismantling the soket head cap screw 15 of bottom,
To adjust pre compressed magnitude of the support spring 9 after damper is installed in place, so as to adjust the proper working load of damper.
As Figure 8-9,11 side of spring fastening is provided with waist-shaped hole, and outer-hexagonal bolt 10, which screws, is mounted on pedestal 8 four
On the threaded hole in week, enables the waist-shaped hole of 11 two sides of spring fastening to hang over the tail portion of outer-hexagonal bolt 10, can both make in this way
Obtaining spring fastening 11 can be pressed into inside pedestal 8 with ground face contact and transport up and down because adjusting cushion block 14 after damper installation
It is dynamic, and can prevent the part in 8 cavity of installation pedestal from falling off in damper transport and drop out.Specifically, the two of spring fastening
Side is provided with collateral plate, and waist-shaped hole is provided on collateral plate, and the both ends of spring fastening are provided with the rank for positioning support spring
Terraced cylinder boss structure, lower part are equipped with the threaded hole for being connect with adjusting cushion block with screw.
Preferably, it is provided with two groups of stiffness changing structures in damper, when assembly, the threaded portion on two 7 top of center pivot
The internal screw thread of the through-hole and 1 inner step boss center of Supporting cover that divide in 8 groove of pedestal, which screws, to be fixed together, in two
After heart fulcrum 7 and Supporting cover 1 revolve and are fixed, it is located above soft support wire net 2 and upper 3 sets of hard support wire net on one group
On ladder boss inside Supporting cover 1, hard support wire net 5 soft support wire under under one group of upper position
6 sets of net on center pivot 7, are overlapped the upper soft support wire net 2, upper hard support wire net 3, lower hard support metal of placement
Silk screen 5 and under soft support wire net 6 with center pivot 7 constitute the variation rigidity mechanism of damper；4 sets of upper seal in base
In the annular groove of 8 upper sides of seat, 13 sets of lower seal is in the annular groove for adjusting 14 side of cushion block, 4 He of upper seal
Lower seal 13 is played jointly to the sealing function inside damper, is reduced the entrance of dust and greasy dirt, is improved damper
Service life.
In use, damper is bolted to position, the mounting plane contacted with damper bottom surface will adjust cushion block 14
Compression upwards, to make support spring 9 generate pre compressed magnitude, after damper is installed in place, as shown in Figure 10, inside Supporting cover 1
There is the gap of 1mm or so between the first boss face of ladder boss and upper soft support wire net 2, at this time due to mounting plane pair
Adjust cushion block compression, under soft support wire net 5, lower hard support wire net 6 and support spring 9 all compressed,
On Stiffness of the initial global stiffness of damper after soft support wire net 5 is connected with lower hard support wire net 6 under being equal to
The initial global stiffness value of the rigidity of support spring 9, i.e. damper is the first rigidity value of soft support wire net 5 and lower hard branch by under
The rigidity value for supportting wire mesh 6 carries out the rigidity value after rigidity series connection calculates, along with the rigidity value of support spring 9.
As shown in figure 11, when the Supporting cover 1 of damper is pressurized, the displacement of generation is negative, when 1 tension of Supporting cover, generation
Displacement is positive.When work, when Supporting cover 1 is generated downward displacement by ambient pressure effect, under soft support wire net 5 under
Hard support wire net 6 is relaxed, so that the global stiffness of damper non-linearly reduces；When Supporting cover 1 continues to bottom offset,
Under soft support wire net 5 loosened completely with lower hard support wire net 6, at this time the global stiffness of damper be equal to support spring
9 rigidity；When Supporting cover 1 is further continued for bottom offset, Supporting cover 1 can be contacted with upper soft support wire net 2, lead to soft branch
Support wire mesh 2 and upper hard support wire net 3 are compressed, and the global stiffness of damper is upper soft 2 He of support wire net at this time
Rigidity after the upper hard series connection of support wire net 3 adds the rigidity of support spring 9, i.e. the global stiffness of damper is upper soft support gold
The rigidity value of the rigidity value and upper hard support wire net 3 that belong to silk screen 2 carries out the rigidity value after rigidity series connection calculates, along with branch
Support the rigidity value of spring 9；When Supporting cover 1 is generated upward displacement by external tensile force effect, soft support gold under two pieces will lead to
It is compressed tighter to belong to hard support wire net 6 under silk screen 5 and two pieces, to generate the non-linear rigidity to increase sharply.Wherein,
Pushing rigidity in displacement section to be equal to the section of support spring rigidity is the normal work section of damper, the vibration damping in this section
Device can show the not Low rigidity with change in displacement, can bring good effectiveness in vibration suppression, when the variation because of load is so that subtract
The displacement of vibration device has been more than normal operation interval, and the rigidity of damper can increase rapidly that displacement is allowed to stop, and plays limit
Effect.Therefore, damper of the invention can show good rigidity adaptive according to the variation of load.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of high-performance vibration reduction device, which is characterized in that including frame structure, stiffness changing structure and main bearing structure, in which:
The frame structure includes Supporting cover (1) and the pedestal (8) below Supporting cover (1)；
The stiffness changing structure includes center pivot (7), upper damping assembly and lower damping assembly, and the center pivot (7) passes through
The upper end of pedestal (8) is simultaneously connected with the Supporting cover (1) above pedestal (8), and the upper damping assembly and lower damping assembly are set with
On center pivot (7), damping assembly is located between pedestal (8) and Supporting cover (1) on this comprising stacks gradually from top to bottom
Upper soft support wire net (2) and upper hard support wire net (3), the lower damping assembly be located at pedestal (8) and center pivot
(7) between the shaft shoulder comprising the lower hard support wire net (5) that stacks gradually from top to bottom and under soft support wire net
(6)；
The main bearing structure includes spring fastening (11) and support spring (9), the centrally disposed branch of the spring fastening (11)
The lower section of axis (7), and with pedestal (8) movable connection, the shaft shoulder and bullet of the centrally disposed fulcrum of the support spring (9) (7)
Between spring support (11).
2. high-performance vibration reduction device as described in claim 1, which is characterized in that the main bearing structure further includes adjusting cushion block
(14), which is mounted on the lower section of spring fastening (11), the adjusting cushion block by soket head cap screw (15)
(14) it is additionally provided between spring fastening (11) adjusting gasket (12).
3. high-performance vibration reduction device as described in claim 1, which is characterized in that the outer surface and Supporting cover (1) of the pedestal (8)
Inner surface between be provided with upper seal (4), it is described adjust cushion block (14) outer surface and pedestal (8) inner surface between set
It is equipped with lower seal (13).
4. high-performance vibration reduction device as described in claim 1, which is characterized in that the pedestal (8) is upper end closed, lower ending opening
Cavity structure, the surfaces externally and internally of the upper end offer coaxial arrangement for installing the upper groove of damping assembly and for pacifying
Load the lower groove of damping assembly.
5. high-performance vibration reduction device as claimed in claim 4, which is characterized in that the upper end of the pedestal (8) be also provided with it is upper
The concentric through-hole of lower groove, for being passed through for center pivot (7).
6. high-performance vibration reduction device as described in claim 1, which is characterized in that the outer surface of the pedestal (8), which offers, to be used for
The annular groove of upper seal (4) is installed.
7. high-performance vibration reduction device as described in claim 1, which is characterized in that the Supporting cover (1) be similarly upper end closed, under
The cavity structure of end opening, the outer surface of the upper end are provided with the boss with taper, and inner surface is provided with ladder boss structure, use
In positioning upper damping assembly, it is provided with threaded hole in the ladder boss middle part, for connecting center pivot (7).
8. such as the described in any item high-performance vibration reduction devices of claim 1-7, which is characterized in that spring fastening (11) side is set
It is equipped with waist-shaped hole, the outer-hexagonal bolt (10) by that will be mounted on pedestal (8) side passes through the waist-shaped hole, realizes spring fastening
(11) with the movable connection of pedestal (8).
9. such as the described in any item high-performance vibration reduction devices of claim 1-8, which is characterized in that by adjusting cushion block when original state
(14) upwards compression make support spring (9) generate pre compressed magnitude, the first order boss face of Supporting cover (1) inner step boss with it is upper
Between soft support wire net (2) have gap, this at present soft support wire net (5), lower hard support wire net (6) and
Support spring (9) is all compressed, the initial global stiffness of damper soft support wire net (5) and lower hard support wire under being equal to
The rigidity of support spring (9) on Stiffness after net (6) series connection.
10. high-performance vibration reduction device as claimed in claim 9, which is characterized in that when work, when Supporting cover (1) is by ambient pressure
When effect generates downward displacement, under soft support wire net (5) be relaxed with lower hard support wire net (6) so that vibration damping
The global stiffness of device non-linearly reduces；When Supporting cover (1) continues to bottom offset, under soft support wire net (5) and lower hard branch
Support wire mesh (6) is loosened completely, and the global stiffness of damper is equal to the rigidity of support spring (9)；When Supporting cover (1) is further continued for
When to bottom offset, Supporting cover (1) is contacted with upper soft support wire net (2), so that upper soft support wire net (2) and upper hard branch
Support wire mesh (3) is compressed, and the global stiffness of damper is upper soft support wire net (2) and upper hard support wire net (3)
Rigidity after series connection adds the rigidity of support spring (9)；When Supporting cover (1) is generated upward displacement by external tensile force effect,
Under soft support wire net (5) and lower hard support wire net (6) it is compressed tighter, generate increase sharply it is non-linear just
Degree.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811244108.XA CN109281971B (en) | 2018-10-24 | 2018-10-24 | high-performance shock absorber |
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|---|---|---|---|
| CN201811244108.XA CN109281971B (en) | 2018-10-24 | 2018-10-24 | high-performance shock absorber |
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| CN109281971B CN109281971B (en) | 2019-12-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513423A (en) * | 2019-09-10 | 2019-11-29 | 北京强度环境研究所 | A kind of all-metal elastic bearing pad |
| CN112762121A (en) * | 2020-12-16 | 2021-05-07 | 沈阳工业大学 | Shock absorber and design method thereof |
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| CN105065566A (en) * | 2015-07-15 | 2015-11-18 | 株洲时代新材料科技股份有限公司 | Shock absorber |
| CN106678239A (en) * | 2015-11-10 | 2017-05-17 | 中国飞机强度研究所 | Composite structure vibration isolator with rubber and wire mesh combined |
| CN108105305A (en) * | 2017-12-13 | 2018-06-01 | 中国飞机强度研究所 | A kind of vibration isolator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513423A (en) * | 2019-09-10 | 2019-11-29 | 北京强度环境研究所 | A kind of all-metal elastic bearing pad |
| CN110513423B (en) * | 2019-09-10 | 2024-04-05 | 北京强度环境研究所 | All-metal elastic supporting pad |
| CN112762121A (en) * | 2020-12-16 | 2021-05-07 | 沈阳工业大学 | Shock absorber and design method thereof |
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