CN212616059U - Viscous-viscoelastic composite damper - Google Patents
Viscous-viscoelastic composite damper Download PDFInfo
- Publication number
- CN212616059U CN212616059U CN202020591271.XU CN202020591271U CN212616059U CN 212616059 U CN212616059 U CN 212616059U CN 202020591271 U CN202020591271 U CN 202020591271U CN 212616059 U CN212616059 U CN 212616059U
- Authority
- CN
- China
- Prior art keywords
- viscous
- piston rod
- viscoelastic
- piston
- cylinder barrel
- 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.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000013016 damping Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 208000012788 shakes Diseases 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a viscous-viscoelastic composite damper, this attenuator includes cylinder (4) and installs in end cover (3) at cylinder (4) both ends, the hole of both ends cover (3) is fixed in proper order to bond has annular viscoelastic component (9) and annular bonding body (10), the middle part and same piston rod (2) fixed sealing connection of two annular bonding bodies (10), cylinder (4), end cover (3), viscoelastic component (9), annular bonding body (10) and piston rod (2) constitute an airtight cavity that is used for filling viscous damping liquid, it has a piston (6) to be located fixed on piston rod (2) in the airtight cavity, piston (6) separate this airtight cavity for first cavity (7) and second cavity (5). The utility model discloses a compound damper has synthesized viscous damper and viscoelastic damper's advantage, has improved the power consumption efficiency and the application scope of attenuator, has avoided the use of dynamic seal, improves the reliability and the economic nature of attenuator.
Description
Technical Field
The utility model belongs to the technical field of vibration control's attenuator for building technique and specifically relates to a viscous-viscoelastic composite damper.
Background
The strong shock and strong wind can cause the structure to vibrate, and the excessive vibration can easily cause the discomfort of people or the damage of the structure. In the face of serious threats of earthquakes and strong wind disasters, advanced anti-seismic or anti-seismic technologies are urgently developed. Energy dissipation and shock absorption technology is an effective passive control technology, and once the technology is put forward, the technology attracts engineering attention, and mainly energy dissipation components are arranged on the structure to add effective damping to the structure so as to reduce the dynamic response of the structure.
Typical energy dissipaters are viscous dampers, friction dampers, metal dampers and viscoelastic dampers. The viscous damper belongs to a hydraulic damper, and has good effects on wind vibration control and shock absorption. The viscous damper generates damping by utilizing pressure difference generated by liquid flowing through small holes or gaps, and is a speed type damper. However, the damper has insufficient energy consumption capacity under the action of large earthquakes, and due to the fact that a dynamic seal needs to be arranged, the risk of liquid leakage caused by seal damage exists in the working state. Viscoelastic dampers can utilize shear deformation of a viscoelastic body to provide both elastic stiffness and damping to a structure. Due to the existence of elastic rigidity, the energy consumption efficiency is lower than that of a viscous damper in a small displacement stage. The two types of dampers have respective advantages and disadvantages, so that the development of a novel damper which can exert the advantages of the two types of dampers simultaneously has important engineering significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that prior art exists, a viscous-viscoelastic composite damper is provided, this viscous-viscoelastic composite damper can compensate viscous-viscoelastic damper little shake stage power consumption not enough and viscous damper dynamic seal easy oil leak, the big defect that the damping force is not enough under the shake, this viscous-viscoelastic composite damper can both have sufficient power consumption ability under the little shake and the big shake, provide the additional damping that satisfies the demand, provide certain additional rigidity, reduce structural deformation for the structure simultaneously.
The utility model aims at solving through the following technical scheme:
a viscous-viscoelastic composite damper is characterized in that: the damper comprises a cylinder barrel and end covers arranged at two ends of the cylinder barrel, wherein annular viscoelastic elements and annular bonding bodies are sequentially fixedly bonded in inner holes of the two end covers, the middle parts of the two annular bonding bodies are fixedly and hermetically connected with a same piston rod, the cylinder barrel, the end covers, the viscoelastic elements, the annular bonding bodies and the piston rod form a closed cavity for filling viscous damping liquid, a piston is fixedly arranged on the piston rod in the closed cavity, and the closed cavity is divided into a first cavity and a second cavity by the piston.
The annular viscoelastic element and the inner annular bonding body and the outer end cover form effective bonding action through vulcanization reaction so as to realize fixed connection of an interface.
The outer threads on the outer circumferential surface of the end cover are fixedly connected with the inner threads on the inner wall of the cylinder barrel through threads, and O-shaped rings are arranged on the inner sides of the connecting positions of the cylinder barrel and the end cover respectively to form static seals so as to prevent viscous damping liquid from leaking at the threaded connecting positions.
The piston rod is fixedly connected with the two annular bonding bodies at the two ends of the cylinder barrel respectively through threads, and O-shaped rings are arranged on the inner sides of the joints of the piston rod and any one of the annular bonding bodies respectively to form static seals so as to prevent viscous damping liquid from leaking at the threaded joints.
The piston is fixedly connected to the piston rod through threads, an annular gap is arranged between the piston and the cylinder barrel, and/or a damping hole penetrating through the piston is formed in the piston.
The inner diameter of the damping holes which are annularly and uniformly distributed on the piston is linearly or nonlinearly changed along the length direction of the damping holes, and the damping holes are arranged perpendicular to the side surface of the piston or at other angles.
And the first end of the piston rod penetrates through the corresponding annular bonding body and then is connected with the first connecting pull head.
The first connecting pull head is fixedly connected with the penetrating end of the piston rod through a thread stroke; or the first connecting pull head is fixedly connected with the penetrating end of the piston rod through a thread stroke, and thread glue is smeared at the threaded connection part.
The end cover corresponding to the second end of the piston rod protrudes out of the cylinder barrel, the protruding portion of the end cover is fixedly connected with one end of the connecting cylinder barrel, and the other end of the connecting cylinder barrel is fixedly connected with the second connecting pull head.
And the end cover corresponding to the second end of the piston rod is recessed into the inner cavity of the cylinder barrel, and the cylinder barrel corresponding to the second end of the piston rod is fixedly connected with the second connecting pull head.
Compared with the prior art, the utility model has the following advantages:
the utility model discloses a viscous-viscoelastic composite damper has synthesized viscoelastic damper and viscous damper's advantage on not increasing too many parts and not changing damper geometry's basis basically, and this kind of profitable compound mode guarantees that the damper can provide suitable rigidity and sufficient power consumption ability under the small earthquake, gives play viscoelastic damper's power consumption ability, reduces the major structure and warp under the big earthquake, has ensured building structure's safety.
The stiffness and the damping of the viscous-viscoelastic composite damper of the utility model are adjustable, which can be realized by adjusting the geometric dimension of the viscoelastic element and the piston or changing the material and the viscous damping liquid of the viscoelastic element, and has stronger adaptability; the viscous-viscoelastic composite damper also avoids the complex process that the conventional viscous damper needs to arrange a dynamic seal between the piston rod and the end cover, and reduces the risk of leakage; the components are fixedly connected by threads, so that the disassembly and the maintenance are convenient.
Drawings
Fig. 1 is a sectional view of the viscous-viscoelastic composite damper of the present invention;
FIG. 2 is a sectional view taken along line A-A of the viscous-viscoelastic composite damper of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of the viscous-viscoelastic composite damper of the present invention shown in FIG. 1;
fig. 4 is a deformation state diagram of the viscous-viscoelastic composite damper of the present invention moving to one side.
Wherein: 1-a first connecting slider; 2-a piston rod; 3, end cover; 4, a cylinder barrel; 5-a second chamber; 6, a piston; 60-an annular gap; 61-damping hole; 7 — a first chamber; 8-O-shaped ring; 9-a viscoelastic element; 10-a ring-shaped bonded body; 11-connecting the cylinder barrel; 12-second connecting slider.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
To make the objects, implementations and advantages of the present invention clearer, the present invention will be further described with reference to the accompanying drawings. It is clear that the described example is only one manifestation of the invention and does not represent all examples.
In the description of the present invention, it should be understood that the terms "left", "right", "inner" and "outer" and the like indicate orientations or positional relationships based only on the positional relationships in the drawings, but are only used for better describing the positional relationships between the parts, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
As shown in fig. 1: a viscous-viscoelastic composite damper, the damper comprising: the cylinder 4, install in the end cover 3 at 4 both ends of cylinder, install in cylinder 4 and pass two end cover 3 's piston rod 2, 2 right-hand members of piston rod and first connection pull head 1 fixed connection, the outside and the end cover 3 bonding of annular viscoelastic element 9, the inboard bonds with annular bonding body 10, connect cylinder 11 and be located left end cover 3 fixed connection, the left side and the second of connecting cylinder 11 are connected pull head 12 fixed connection, piston 6 is fixed to be set up and is separated into first cavity 7 and second cavity 5 with the hydro-cylinder at the middle part of piston rod 2, four O type circles 8 set up and constitute the static seal in the damping cylinder is inside.
The above-described components are explained in detail below.
As shown in fig. 1 and 2, the inner side of the cylinder 4 is connected to the outer side of the annular end cap 3, the inner side of the annular end cap 3 is bonded to the outer side of the annular viscoelastic element 9, the inner side of the viscoelastic element 9 is bonded to the outer side of the annular bonded body 10, and the inner side of the annular bonded body 10 is fixedly connected to the piston rod 2. The O-shaped rings 8 are respectively arranged at the joint of the cylinder barrel 4 and the end cover 3 and the joint of the annular bonding body 10 and the piston rod 2.
As shown in fig. 3, the piston 6 is concentrically and fixedly connected with the piston rod 2, an annular gap 60 is arranged between the piston 6 and the cylinder barrel 4, the gap degree of the annular gap 60 has a remarkable influence on the magnitude of the damping force, and the purpose of changing the damping force can be achieved by adjusting the gap magnitude; further, the piston 6 may be provided with the damping holes 61, and the damping force and the damping index may be adjusted by providing the damping holes 61 in the size, number, direction, and the like.
The utility model discloses a viscous-viscoelastic composite damper improves and lies in: the cylinder barrel 4 is fixedly connected with the annular end covers 3 on the left side and the right side of the cylinder barrel, and the cylinder barrel 4 is connected with the end covers 3 through threads.
The utility model discloses a viscous-viscoelastic composite damper improves and lies in: the inside of the annular end cap 3 is provided with an annular viscoelastic element 9: the inner side of the viscoelastic element 9 is provided with an annular bonding body 10, the end cover 3, the viscoelastic element 9 and the annular bonding body 10 form a whole part with a synergistic effect through vulcanization reaction, and the viscoelastic element 9 can be made of rubber or other high polymer materials with viscoelastic properties.
The utility model discloses a viscous-viscoelastic composite damper improves and lies in, because piston rod 2 passes end cover 3 department and the 10 fixed connection of annular bonding body to set up O type sealing washer 8, and annular bonding body 10 closely links to each other through viscoelastic element 9 with end cover 3, has avoided the dynamic seal that sets up between traditional viscous damper piston rod 2 and end cover 3.
The utility model discloses a viscous-viscoelastic composite damper improves and lies in: the piston 6 and the piston rod 2 can be fixedly connected through a thread stroke: an annular gap 60 is arranged between the piston 6 and the cylinder barrel 4, the size of the gap of the annular gap 60 can be adjusted according to the requirement of the damping force, the annular piston 6 can also be provided with through holes which are symmetrically arranged to be used as damping holes 61 for adjusting the damping force, and the alternative is as follows: the inner diameter of the damping hole 61 changes linearly or nonlinearly along the length direction of the damping hole 61, and the damping hole 61 is opened perpendicular to the side surface of the piston 6 or at other angles.
As shown in fig. 4, the first coupling slider 1 reciprocates the piston rod 2 left and right. Taking the rightward movement as an example, the piston 6 follows the piston rod 2 to move axially rightward, the first chamber 7 increases in space, and the second chamber 5 decreases in space; the viscous damping fluid in the second chamber 5 is pressed by the piston 6 and flows to the first chamber 7 through the annular gap 60 or the damping hole 61 on the piston 6, generating viscous damping force; the annular bonding body 10 also moves rightwards along with the piston rod 2, and the annular bonding body 10 drives the viscoelastic element 9 to generate a viscous damping force and an elastic force through the shearing deformation under the bonding action with the viscoelastic element 9.
The utility model discloses a first connection pull head 1, piston rod 2, end cover 3, cylinder 4, piston 6, annular bonding body 10, connect cylinder 11 and second and connect pull head 12 and be the steel part, viscous damping liquid 7 in the airtight chamber can be silicon oil or other polymer viscous fluids, and viscoelastic element 9 can be rubber and other polymer that possess good viscoelasticity.
The viscous-viscoelastic composite damper integrates the advantages of the viscoelastic damper and the viscous damper on the basis that too many parts are not added and the geometric dimension of the damper is not changed basically, the beneficial combined mode ensures that the damper can provide proper rigidity and enough energy consumption capability under small earthquake, exerts the energy consumption capability of the viscoelastic damper under large earthquake, reduces the deformation of a main structure and ensures the safety of a building structure; the rigidity and the damping of the viscous-viscoelastic composite damper have adjustability, and the viscous-viscoelastic composite damper can be realized by adjusting the geometric dimensions of the viscoelastic element 9 and the piston 6 or replacing the material and the viscous damping liquid of the viscoelastic element 9, so that the viscous-viscoelastic composite damper has stronger adaptability; the viscous-viscoelastic composite damper also avoids the complex process that the conventional viscous damper needs to arrange a dynamic seal between the piston rod 2 and the end cover 3, and reduces the risk of leakage; the components are fixedly connected by threads, so that the disassembly and the maintenance are convenient.
The above embodiments are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea provided by the present invention all fall within the protection scope of the present invention; the technology not related to the utility model can be realized by the prior art.
Claims (10)
1. A viscous-viscoelastic composite damper is characterized in that: the damper comprises a cylinder barrel (4) and end covers (3) arranged at two ends of the cylinder barrel (4), wherein annular viscoelastic elements (9) and annular bonding bodies (10) are sequentially fixedly bonded in inner holes of the two end covers (3), the middle parts of the two annular bonding bodies (10) are fixedly and hermetically connected with the same piston rod (2), the cylinder barrel (4), the end covers (3), the viscoelastic elements (9), the annular bonding bodies (10) and the piston rod (2) form a closed chamber for filling viscous damping liquid, a piston (6) is fixedly arranged on the piston rod (2) in the closed chamber, and the piston (6) divides the closed chamber into a first chamber (7) and a second chamber (5).
2. The viscous-viscoelastic composite damper according to claim 1, characterized in that: the annular viscoelastic element (9) forms effective bonding effect with the inner annular bonding body (10) and the outer end cover (3) through vulcanization reaction so as to realize fixed connection of an interface.
3. The viscous-viscoelastic composite damper according to claim 1, characterized in that: the outer threads on the outer circumferential surface of the end cover (3) are fixedly connected with the inner threads on the inner wall of the cylinder barrel (4) through threads, and O-shaped rings (8) are arranged on the inner sides of the connection part of the cylinder barrel (4) and the end cover (3) respectively to form static seal so as to prevent viscous damping liquid from leaking at the threaded connection part.
4. The viscous-viscoelastic composite damper according to claim 1 or 3, characterized in that: the piston rod (2) is fixedly connected with the two annular bonding bodies (10) at the two ends of the cylinder barrel (4) through threads respectively, and O-shaped rings (8) are arranged on the inner sides of the joints of the piston rod (2) and any one annular bonding body (10) respectively to form static seals so as to prevent viscous damping liquid from leaking at the threaded joints.
5. The viscous-viscoelastic composite damper according to claim 1, characterized in that: the piston (6) is fixedly connected to the piston rod (2) through threads, an annular gap (60) is arranged between the piston (6) and the cylinder barrel (4) and/or a damping hole (61) penetrating through the piston (6) is formed in the piston (6).
6. The viscous-viscoelastic composite damper according to claim 5, characterized in that: the inner diameter of the damping holes (61) which are circumferentially and uniformly distributed on the piston (6) is linearly or nonlinearly changed along the length direction of the damping holes (61), and the damping holes (61) are arranged perpendicular to the side surface of the piston (6) or at other angles.
7. The viscous-viscoelastic composite damper according to claim 1, characterized in that: the first end of the piston rod (2) penetrates through the corresponding annular bonding body (10) and then is connected with the first connecting pull head (1).
8. The viscous-viscoelastic composite damper according to claim 7, characterized in that: the first connecting pull head (1) is fixedly connected with the penetrating end of the piston rod (2) through a thread stroke; or the first connecting pull head (1) is fixedly connected with the penetrating end of the piston rod (2) through a thread stroke, and thread glue is smeared at the thread connection position.
9. The viscous-viscoelastic composite damper according to claim 7, characterized in that: the end cover (3) corresponding to the second end of the piston rod (2) protrudes out of the cylinder barrel (4), the protruding portion of the end cover (3) is fixedly connected with one end of the connecting cylinder barrel (11), and the other end of the connecting cylinder barrel (11) is fixedly connected with the second connecting pull head (12).
10. The viscous-viscoelastic composite damper according to claim 7, characterized in that: the end cover (3) corresponding to the second end of the piston rod (2) is recessed into the inner cavity of the cylinder barrel (4), and the cylinder barrel (4) corresponding to the second end of the piston rod (2) is fixedly connected with the second connecting pull head (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020591271.XU CN212616059U (en) | 2020-04-20 | 2020-04-20 | Viscous-viscoelastic composite damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020591271.XU CN212616059U (en) | 2020-04-20 | 2020-04-20 | Viscous-viscoelastic composite damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212616059U true CN212616059U (en) | 2021-02-26 |
Family
ID=74702449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020591271.XU Expired - Fee Related CN212616059U (en) | 2020-04-20 | 2020-04-20 | Viscous-viscoelastic composite damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212616059U (en) |
-
2020
- 2020-04-20 CN CN202020591271.XU patent/CN212616059U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108915113B (en) | Sectional combined energy-consuming damping viscous damper | |
| CN100425860C (en) | Damper | |
| CN111442054A (en) | Viscous-viscoelastic composite damper | |
| US3323806A (en) | Fluid seal | |
| CN104989764B (en) | Hole type viscous damper with hole length capable of being automatically adjusted | |
| CN201925396U (en) | Multi-lip PTFE (polytetrafluoroethylene) coated oil seal of automobile damper | |
| US5743362A (en) | Temperature compensated viscous damper | |
| CN108843724A (en) | A kind of novel variation rigidity variable damping earthquake isolating equipment based on STF | |
| CN212616059U (en) | Viscous-viscoelastic composite damper | |
| CN208107050U (en) | A kind of flexible closed type fluid linking damper | |
| CN207569132U (en) | A kind of pressure self-balancing fluid linking damper | |
| CN103307187B (en) | Vibration damper sealing structure | |
| CN107061594A (en) | A kind of spring colloid damper | |
| CN111441493B (en) | Viscous-viscoelastic composite damper | |
| CN208397282U (en) | sealing element | |
| CN212335746U (en) | Self-resetting SMA-viscous vibration reduction damper | |
| CN104776153B (en) | MR mount based on unidirectionally extruded pattern | |
| CN2168996Y (en) | Assembled sealing ring | |
| CN110042941B (en) | Elbow-shaped elastomer vibration energy-dissipation rotary fluid damping node | |
| CN101165362A (en) | Damper possessing axial guiding means | |
| CN108756007B (en) | Combined type multifunctional viscous damper | |
| CN207673649U (en) | A kind of combined sealing structure | |
| CN211343524U (en) | Double energy storage assembly of energy storage type hydraulic system | |
| CN206467553U (en) | A kind of speed lockup's device | |
| US2392763A (en) | Fluid seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |