CN202273170U - Multi-span bridge anti-seismic high-precision speed locker - Google Patents
Multi-span bridge anti-seismic high-precision speed locker Download PDFInfo
- Publication number
- CN202273170U CN202273170U CN2011201834089U CN201120183408U CN202273170U CN 202273170 U CN202273170 U CN 202273170U CN 2011201834089 U CN2011201834089 U CN 2011201834089U CN 201120183408 U CN201120183408 U CN 201120183408U CN 202273170 U CN202273170 U CN 202273170U
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- cylinder body
- piston
- shearing
- injection hole
- shearing thickening
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Abstract
The utility model relates to a multi-span bridge anti-seismic high-precision speed locker, which comprises a cylinder body part, a piston part and a work material. The piston part and the cylinder body part are assembled together into an integral body and the working material is arranged inside the cylinder body. The working material is shearing thickening liquid or shearing thickening gel. The end cap of the cylinder body is a cylindrical sealing cover cap. The interior bottom of the sealing cover cap is provided with a boss matched with the internal diameter of the cylinder body. The outside of the sealing cover cap is provided with a dustproof cover. A piston rod and a connecting rod are threadedly connected together. One sidewall of the cylinder body is provided with a liquid injection hole and a plunger is arranged inside the liquid injection hole. The shearing thickening liquid and the shearing thickening gel adopted by the speed locker are usually very soft and are good in fluidity in a normal state. Once the speed reaches a critical shearing value, the shearing thickening liquid and the shearing thickening gel are quickly improved in viscosity so as to be turned into hard solid. When the impact is removed, the shearing thickening liquid and the shearing thickening gel quickly return to be in a soft state. Therefore, the speed locker has the advantages of high precision and sensitivity, good reversibility and the like.
Description
Technical field
The utility model belongs to the bridge earthquake resistance technical field, be specifically related to have reinforcing, shock resistance, can be with translational speed restriction speed lock within the specific limits.
Background technology
Earthquake in recent years, tsunami, typhoon etc. inevitably natural calamity take place frequently, and serious threat is to people's the security of the lives and property.In case particularly bridge, overhead these heavy construction failure losses are with inestimable.The multispan bridge is one of common bridge, in the design-build process, generally girder is bearing on the bridge pier in order to reduce the influence that temperature brings.It is to tend to destroy because horizontal intensity is not enough that this structure receives above-mentioned natural calamity.
The speed lock is a kind of piston type cylindrical cavity constructional device, and it is very little between piston and cylinder body, to be under the lower-speed state its drag, along with the increase drag of piston and cylinder body speed can increase gradually.Speed lock level is connected between girder and the bridge pier; Under creep, factor such as expand with heat and contract with cold, can not change the structure of bridge; But when bridge received the strong load of power of an impact, the speed lock can lock girder and bridge pier, thereby increased the bulk strength of bridge.
Summary of the invention
In order to solve the not high shortcoming of multispan bridge horizontal intensity, the utility model provides a kind of and is installed in that reaction between girder and the bridge pier is fast, precision is high, the multispan bridge earthquake resistance of good reversibility is used the high precision velocity lock.
The technical solution that realizes above-mentioned purpose is following:
The multispan bridge earthquake resistance comprises cylinder part, piston portion and work materials with the high precision velocity lock; Piston portion and cylinder part assembly an integral body, and said work materials is positioned at cylinder body; Said cylinder part comprises the cylinder body and the end cap of cylindrical tube shape, and said piston portion comprises piston, piston rod and connecting rod, and an end of piston rod and an end of connecting rod are connected, and piston is positioned on the piston rod, and the other end of connecting rod extends outside the other end of cylinder body;
Said work materials is shear thickening liquid or shear thickening gel;
Said end cap is the closing cap of cylindrical tube shape, and the bottom in the closing cap is provided with the boss that cooperates with cylinder diameter; The said closing cap outside is provided with dust cover;
One end of said piston rod and an end of connecting rod are for being threaded;
Offer liquid injection hole on said cylinder body one sidewall, be provided with plunger in the said liquid injection hole.
The axial length of said closing cap is 40-60mm.
The diameter of said liquid injection hole is 5-8mm.The useful technique effect of the utility model is embodied in following several aspect:
1, the utility model uses shear thickening materials, and the speed lock of making has precision, highly sensitive, characteristics such as good reversibility.
2, the shear thickening materials of the utility model use is a kind of novel intellectual material, comprises shear thickening liquid and shear thickening gel etc.Nontoxic, non-stimulated smell, unusual softness has easy mobility under the normality at ordinary times, in case the quick increase of viscosity finally becomes hard solid when reaching critical shear rate, gets back to soft condition rapidly after removing impact.Get into behind the shear thickening district shear rate for the shear thickening materials of better performances and increase and be twice the corresponding rising ten of viscosity and accompany abovely, and critical shear rate is a stationary value.
3, the utility model uses the fixing sealing end shield of screw can effectively improve the fastening degree of sealing end shield and cylinder body, and sealing effectiveness strengthens.
4, the utility model uses the piston rod with helicitic texture can effectively avoid the axially-movable of piston.
5, the utility model is provided with liquid injection hole on cylinder body, can after leakage, in cylinder body, inject shear thickening materials through liquid injection hole, avoids reducing because of leakage the precision of high precision velocity lock.
6, the dust cover that uses of the utility model can prevent effectively that impurity such as dust from getting in the cylinder chamber, avoids reducing the shear thickening materials performance.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model structure sectional view.
Sequence number among the last figure: cylinder body 1, Connection Block 2, closing cap 3, piston rod 4, connecting rod 5, piston 6, anti-skidding projection 7, bolt 8, damping hole 9, liquid injection hole 10, dust cover 11.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done to describe further through embodiment.
Embodiment 1:
Referring to Fig. 1 and Fig. 2, the multispan bridge earthquake resistance comprises cylinder part, piston portion and work materials with the high precision velocity lock, and piston portion and cylinder part assembly an integral body, and work materials is positioned at cylinder body, and work materials is a shear thickening liquid.Cylinder part comprises the cylinder body 1 and the end cap of cylindrical tube shape, and cylinder body 1 outside one end is equipped with Connection Block 2.Piston portion comprises piston 6, piston rod 4 and connecting rod 5, and an end of piston rod 4 and an end of connecting rod 5 are through being threaded, and the other end of connecting rod 5 extends outside the other end of cylinder body.Piston 6 is set on the piston rod 4, and piston 6 is provided with anti-skidding projection 7 and damping hole 9.
End cap is the closing cap 3 of cylindrical tube shape, is connected with cylinder body 1 through bolt 8, and the bottom in the closing cap 3 is provided with the boss that cooperates with cylinder body 1 internal diameter, and the axial length of closing cap 3 is 50mm.
In the use, when being in lower-speed state between piston and the cylinder body, the shear thickening fluid viscosity in the cylinder chamber is very low, and this moment, drag was very little; In case when reaching critical speed, the shear thickening fluid viscosity in the chamber increases suddenly, this moment, drag became big rapidly; After speed dropped to critical speed, drag can diminish fast.
Embodiment 2:
Referring to Fig. 1 and Fig. 2, closing cap 3 outsides are equipped with dust cover 11, and dust cover 11 is enclosed within connecting rod 5.
Work materials is the shear thickening gel.
Other structures are with embodiment 1.
Under the big environment of dust, the high precision velocity lock is set up dust cover 11 can prevent effectively that dust from getting in the cylinder chamber, avoids dust to reduce the performance of shear thickening materials.
Embodiment 3:
Be with the difference of embodiment 1:
Offer liquid injection hole 10 on cylinder body 1 one sidewalls, the diameter of liquid injection hole is 6mm, in the liquid injection hole 10 plunger is installed.See Fig. 2.The long-time high precision velocity lock that uses inevitably the phenomenon of leakage can occur, thereby causes precision to reduce, and can be expelled to shear thickening materials in the cylinder body through liquid injection hole 11 this moment.
Claims (3)
1. the multispan bridge earthquake resistance is used the high precision velocity lock, comprises cylinder part, piston portion and work materials; Piston portion and cylinder part assembly an integral body, and said work materials is positioned at cylinder body; Said cylinder part comprises the cylinder body and the end cap of cylindrical tube shape; Said piston portion comprises piston, piston rod and connecting rod, and an end of piston rod and an end of connecting rod are connected, and piston is positioned on the piston rod; The other end of connecting rod extends outside the other end of cylinder body, it is characterized in that:
Said work materials is shear thickening liquid or shear thickening gel;
Said end cap is the closing cap of cylindrical tube shape, and the bottom in the closing cap is provided with the boss that cooperates with cylinder diameter; The said closing cap outside is provided with dust cover;
One end of said piston rod and an end of connecting rod are for being threaded;
Offer liquid injection hole on said cylinder body one sidewall, be provided with plunger in the said liquid injection hole.
2. multispan bridge earthquake resistance according to claim 1 is used the high precision velocity lock, it is characterized in that: the axial length of said closing cap is 40-60mm.
3. multispan bridge earthquake resistance according to claim 1 is used the high precision velocity lock, it is characterized in that: the diameter of said liquid injection hole is 5-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201834089U CN202273170U (en) | 2011-06-02 | 2011-06-02 | Multi-span bridge anti-seismic high-precision speed locker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201834089U CN202273170U (en) | 2011-06-02 | 2011-06-02 | Multi-span bridge anti-seismic high-precision speed locker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273170U true CN202273170U (en) | 2012-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201834089U Expired - Fee Related CN202273170U (en) | 2011-06-02 | 2011-06-02 | Multi-span bridge anti-seismic high-precision speed locker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273170U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296528A (en) * | 2011-06-02 | 2011-12-28 | 中国科学技术大学 | High-precision lock-up device (LUD) for multi-span bridges to resist earthquakes |
| CN102979214A (en) * | 2012-12-24 | 2013-03-20 | 郑州大学 | Silicon fluid velocity lock |
| CN105772557A (en) * | 2016-04-29 | 2016-07-20 | 苏州大学 | High-pressure dynamic sealing device |
| EP3091244A1 (en) * | 2015-05-06 | 2016-11-09 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Apparatus for wear compensation for an actuator |
| CN112483588A (en) * | 2020-11-26 | 2021-03-12 | 华中科技大学 | Variable-stiffness damper based on shear thickening characteristic |
-
2011
- 2011-06-02 CN CN2011201834089U patent/CN202273170U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296528A (en) * | 2011-06-02 | 2011-12-28 | 中国科学技术大学 | High-precision lock-up device (LUD) for multi-span bridges to resist earthquakes |
| CN102979214A (en) * | 2012-12-24 | 2013-03-20 | 郑州大学 | Silicon fluid velocity lock |
| CN102979214B (en) * | 2012-12-24 | 2015-04-22 | 洛阳双瑞特种装备有限公司 | Silicon fluid velocity lock |
| EP3091244A1 (en) * | 2015-05-06 | 2016-11-09 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Apparatus for wear compensation for an actuator |
| CN105772557A (en) * | 2016-04-29 | 2016-07-20 | 苏州大学 | High-pressure dynamic sealing device |
| CN112483588A (en) * | 2020-11-26 | 2021-03-12 | 华中科技大学 | Variable-stiffness damper based on shear thickening characteristic |
| CN112483588B (en) * | 2020-11-26 | 2022-01-07 | 华中科技大学 | Variable-stiffness damper based on shear thickening characteristic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20120613 Termination date: 20180602 |