CN203979254U - Non-linear damper with viscosity - Google Patents
Non-linear damper with viscosity Download PDFInfo
- Publication number
- CN203979254U CN203979254U CN201420280647.XU CN201420280647U CN203979254U CN 203979254 U CN203979254 U CN 203979254U CN 201420280647 U CN201420280647 U CN 201420280647U CN 203979254 U CN203979254 U CN 203979254U
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- China
- Prior art keywords
- cylinder body
- piston
- viscosity
- hole
- damping chamber
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Links
- 238000013016 damping Methods 0.000 claims abstract description 36
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of non-linear damper with viscosity, it comprises cylinder body, piston, piston rod, cylinder body is divided into the first damping chamber and the second damping chamber by piston, the indoor resisting medium that is filled with of the first damping chamber and the second damping cavity, the mutual corresponding position of side face of piston ring offers respectively blind hole, blind hole hole wall is the gradually little cambered surface of diameter from outside to inside, and side face of piston ring is communicated with by straight hole between corresponding a pair of blind hole bottom, and the aperture of straight hole is not more than the minimum-value aperture of blind hole.The mode that is connected by straight hole of two cambered surface blind holes that diameter is gradually little from outside to inside that the utility model adopts is communicated with the first damping chamber of cylinder body and the second damping chamber, has the manufacturing of being easy to, can better realize the feature of the damping capacity of damper.
Description
Technical field
The utility model relates to cushion technique field, refers to particularly a kind of non-linear damper with viscosity that is applied to bridge, building engineering field.
Background technique
Common damper with viscosity is made up of parts such as cylinder body, piston, piston rod, resisting mediums conventionally.Resisting medium riddles in two cavitys before and after piston, and the related piston of piston rod can slide at the inner chamber of cylinder body, and resisting medium, in piston sliding process, flow to another cavity by the passage between piston and cylinder body by a cavity.
In prior art, the passage between piston and the cylinder body of damper with viscosity adopts orifice valve more, on piston, set many groups connect side by side aperture or utilize piston, cylinder barrel gap to realize.
Adopt orifice valve structure, due to safety valve being installed on piston, when viscous damper is under nominal situation, safety valve is in normally off, but when viscous damper is under the accident conditionses such as overload, safety valve will be opened pressure release; And the unlatching of valve body is by spring action, and there are fatigue characteristic in spring, adopts the structure of orifice valve often to occur unstable properties, fragile, thereby cause unstable properties and even the inefficacy of damper.
Adopt piston, cylinder barrel clearance type structure, because gap is that piston coordinates realization between the two with cylinder barrel, therefore the control of size is difficult to precisely, and damping capacity exactly needs precise gaps to ensure, therefore actual product often causes the inconsistent situation of same batch products performance.
On employing piston, set many groups and connect orifice type structure side by side, because this aperture is elongated, aperture Inner Dimension is difficult for ensureing, has the problem of processing and fabricating difficulty and poor stability.
In addition, when damper with viscosity is speed lock, its resisting medium mostly is high viscosity fat, be inconvenient to pour into, and cost is higher.
Therefore, need improve prior art.
Summary of the invention
The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, provides one to be easy to processing, the non-linear damper with viscosity that damping capacity is good.
The technical solution of the utility model is: a kind of non-linear damper with viscosity, it comprises cylinder body, piston, piston rod, cylinder body is divided into the first damping chamber and the second damping chamber by described piston, described the first damping chamber and the indoor resisting medium that is filled with of the second damping cavity, it is characterized in that: the mutual corresponding position of described side face of piston ring offers respectively blind hole, described blind hole hole wall is the gradually little cambered surface of diameter from outside to inside, described side face of piston ring is communicated with by straight hole between corresponding a pair of blind hole bottom, the aperture of described straight hole is not more than the minimum-value aperture of described blind hole.
In such scheme:
Described blind hole hole wall is sphere, hyperboloid or ellipsoid.
Preferably, the two ends of described cylinder body are by end bracket enclosed, and described piston rod is through the two ends of described cylinder body, one end of described piston rod is connected with otic placode, the other end is deep in link, and described link is fixed on the end of described cylinder body, on described link, is connected with otic placode.
Preferably, the two ends of described cylinder body are by end bracket enclosed, and described piston rod one end is positioned at cylinder body and is connected with piston, and the other end stretches out one end of cylinder body, and the external part of described piston rod is connected with otic placode, and the other end of described cylinder body is connected with otic placode by link.
Described damper is speed lock, and the length numerical value of described straight hole is not more than three times of described straight hole aperture, and described resisting medium is silicone oil with low viscosity or hydraulic oil.
The mode that is connected by straight hole of two cambered surface blind holes that diameter is gradually little from outside to inside that the utility model adopts is communicated with the first damping chamber of cylinder body and the second damping chamber, has the manufacturing of being easy to, can better realize the feature of the damping capacity of damper.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that Fig. 1 mean camber groove is combined schematic diagram with straight hole.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to figure 1, the non-linear damper with viscosity of one of the present embodiment, it comprises cylinder body 3, piston 4, piston rod 6, cylinder body 3 is divided into the first damping chamber 3.1 and the second damping chamber 3.2 by piston 4, in the first damping chamber 3.1 and the second damping chamber 3.2, be filled with resisting medium 5, with reference to figure 2, offer respectively blind hole 4.1 at the mutual corresponding position of piston 4 both ends of the surface, blind hole 4.1 hole walls are the gradually little cambered surface of diameter from outside to inside, blind hole 4.1 hole walls are preferably sphere, hyperboloid or ellipsoid, side face of piston ring is communicated with by straight hole 4.2 between corresponding a pair of blind hole 4.1 bottoms, the aperture of straight hole 4.2 is not more than the minimum-value aperture of blind hole 4.1.
The mode that two cambered surface blind holes 4.1 that the utility model adopts are connected by straight hole 4.2 is communicated with the first damping chamber 3.1 of cylinder body 3 and the second damping chamber 3.2, be formed on the pod apertures that in damping cavity, resisting medium 5 circulates between the first damping chamber 3.1 and the second damping chamber 3.2, and the cambered surface hole wall of blind hole 4.1 is designed to from outside to inside to diameter is gradually little, and be the minimum-value aperture that is not more than blind hole 4.1 by the aperture design of straight hole 4.2, difference designs with the straight line type in background technique, the advantage of design is like this: be easy to processing, effectively ensure dimensional accuracy, thereby ensure the stability of product damping capacity.
Damper with viscosity fundamental formular is F=CV
α, wherein F is damping force, and C is damping constant, and α is speed index.The utility model can be adjusted damping coefficient and speed exponential quantity by adjusting the cambered surface radius value of blind hole 4.1 and the length value of straight hole 4.2, reaches different damping force values, realizes the damping capacity of damper with viscosity, better meets F=CV
α.
In the time that speed index α is fixed value 2, this damper with viscosity is speed lock, and in the case, in prior art, resisting medium more than 5 adopts silica gel, and this silica gel viscosity is large, and cost is higher, inject difficulty, and temperature influence is larger, and performance is wayward.For the speed lock with pod apertures structure in the present embodiment, when the length numerical value of straight hole 4.2 is designed to be not more than the aperture triple value of this this straight hole 4.2, its damping capacity and viscosity are irrelevant, therefore, the resisting medium 5 of the present embodiment can adopt silicone oil with low viscosity or hydraulic oil, and cost is lower, injects easily, and performance is temperature influence not, to facilitate the function that realizes speed lock.
As the one distortion of the present embodiment, one end of piston rod 6 can not pass cylinder body 3, be specially: the two ends of cylinder body 3 are sealed by end cap 2, piston rod 6 one end are positioned at cylinder body 3 and are connected with piston, the other end stretches out one end of cylinder body 3, the external part of piston rod 6 is connected with otic placode 1, and the other end of cylinder body 3 is connected with otic placode 1 by link 7.
The above, be only preferred embodiment of the present utility model, not the utility model structure done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.
Claims (5)
1. a non-linear damper with viscosity, it comprises cylinder body (3), piston (4), piston rod (6), cylinder body (3) is divided into the first damping chamber and the second damping chamber by described piston (4), in described the first damping chamber (3.1) and the second damping chamber (3.2), be filled with resisting medium (5), it is characterized in that: the mutual corresponding position of described piston (4) both ends of the surface offers respectively blind hole (4.1), described blind hole (4.1) hole wall is the gradually little cambered surface of diameter from outside to inside, the corresponding a pair of blind hole (4.1) of described side face of piston ring is communicated with by straight hole (4.2) between bottom, the aperture of described straight hole (4.2) is not more than the minimum-value aperture of described blind hole (4.1).
2. the non-linear damper with viscosity of one according to claim 1, is characterized in that: described blind hole (4.1) hole wall is sphere, hyperboloid or ellipsoid.
3. the non-linear damper with viscosity of one according to claim 1, it is characterized in that: the two ends of described cylinder body (3) are sealed by end cap (2), described piston rod (6) is through the two ends of described cylinder body (3), one end of described piston rod (6) is connected with otic placode (1), the other end is deep in link (7), described link (7) is fixed on the end of described cylinder body (3), is connected with otic placode (1) on described link (7).
4. the non-linear damper with viscosity of one according to claim 1, it is characterized in that: the two ends of described cylinder body (3) are sealed by end cap (2), described piston rod (6) one end is positioned at cylinder body (3) and is connected with piston, the other end stretches out one end of cylinder body (3), the external part of described piston rod (6) is connected with otic placode (1), and the other end of described cylinder body (3) connects (7) by link and is connected to otic placode (1).
5. the non-linear damper with viscosity of one according to claim 1, it is characterized in that: when described damper is speed lock, the length numerical value of described straight hole (4.2) is not more than three times of described straight hole (4.2) aperture, and described resisting medium (5) is silicone oil with low viscosity or hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280647.XU CN203979254U (en) | 2014-05-29 | 2014-05-29 | Non-linear damper with viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280647.XU CN203979254U (en) | 2014-05-29 | 2014-05-29 | Non-linear damper with viscosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979254U true CN203979254U (en) | 2014-12-03 |
Family
ID=51976701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420280647.XU Expired - Lifetime CN203979254U (en) | 2014-05-29 | 2014-05-29 | Non-linear damper with viscosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979254U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895994A (en) * | 2015-06-24 | 2015-09-09 | 上海赛弗工程减震技术有限公司 | Leak-proof multiple-seal viscous damper |
| CN106763431A (en) * | 2017-01-17 | 2017-05-31 | 常州容大结构减振股份有限公司 | A kind of rotary Effects of Viscous Fluid Damper |
| CN108408633A (en) * | 2018-05-16 | 2018-08-17 | 湖北省交通规划设计院股份有限公司 | A kind of Hydrauservo System accurately joined the two sections of a bridge, etc for bridge |
-
2014
- 2014-05-29 CN CN201420280647.XU patent/CN203979254U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895994A (en) * | 2015-06-24 | 2015-09-09 | 上海赛弗工程减震技术有限公司 | Leak-proof multiple-seal viscous damper |
| CN106763431A (en) * | 2017-01-17 | 2017-05-31 | 常州容大结构减振股份有限公司 | A kind of rotary Effects of Viscous Fluid Damper |
| CN108408633A (en) * | 2018-05-16 | 2018-08-17 | 湖北省交通规划设计院股份有限公司 | A kind of Hydrauservo System accurately joined the two sections of a bridge, etc for bridge |
| CN108408633B (en) * | 2018-05-16 | 2023-12-01 | 湖北省交通规划设计院股份有限公司 | Hydraulic servo system for accurate closure of bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |