CN203546581U - Locking device with control switch - Google Patents
Locking device with control switch Download PDFInfo
- Publication number
- CN203546581U CN203546581U CN201320656310.XU CN201320656310U CN203546581U CN 203546581 U CN203546581 U CN 203546581U CN 201320656310 U CN201320656310 U CN 201320656310U CN 203546581 U CN203546581 U CN 203546581U
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- locking device
- piston
- cylinder body
- control
- hydraulic cylinder
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a locking device with a control switch. The locking device is capable of effectively controlling the vibration of a bridge structure under the train load effect, avoiding the damage to the locking device by earthquake load, solving the fatigue problem and conveniently resetting the locking device. The locking device comprises a hydraulic cylinder consisting of a cylinder body (10) and a piston (11); a left side cavity (10a) and a right side cavity (10b) arranged on the two sides of the piston (11) are communicated by small holes in the piston (11); one end of the hydraulic cylinder is fixedly connected with the piston (11) by a piston connecting rod (12); the other end of the hydraulic cylinder is fixedly connected with the cylinder body (10) by a cylinder body connecting rod (13); a control pipeline (20) is fixedly arranged outside the cylinder body (10); the two ends of the control pipeline (20) are respectively communicated with the left side cavity (10a) and the right side cavity (10b); a control valve (21) is arranged on the control pipeline (20).
Description
Technical field
The utility model relates to bridge, particularly a kind of locking device with gauge tap.
Background technology
At present, for controlling the vibration absorber that bridge brakes and seismic load has been developed, mainly contain locking device, liquid Effects of Viscous Fluid Damper, metal damper, frcition damper, viscoelastic damper etc.Validity, stability and the long-term durability of using of considering device effect propety, in bridge engineering, the vibration absorber of extensive use is mainly locking device and viscous damper the most.
Because braking force of train and train flexural force are much smaller with respect to seismic forces, the speed of its caused pier beam relative displacement is just relatively little many, stressed also just relatively little on damper.The control action of the girder compressional vibration response that therefore, damper causes longitudinal braking force of train and the traffic load of bridge is very limited.So general speed locking device is controlled the girder vibration that live load of train causes.
Locking device is a kind of constrained displacement device of similar speed switch, when bridge moves to a certain speed, starts, and locks the relative displacement between two settlements.Its operating principle is just as the safety belt on automobile.The lock speed of setting of take is boundary, and in microinching, any effect does not occur for it, allows bridge Free Transform under temperature and normal live load.In moving rapidly, can play the effect of lock motion.Although this device can not dissipation energy.But motion and collision between the bridge each several part that it brings for loads such as brakes, can play minimizing, transfer and restriction effectively.But when running into larger seismic load, this device can not consume energy, and rigidity makes more greatly it stressed very large.If design the maximum weighted of this device according to earthquake operating mode, the locking device damping force of designing is excessive, and cost is very expensive.Therefore, if this device, according to the brake load design less than seismic forces, runs into earthquake, the destruction of equipment self of can only take is cost.
For avoiding locking device, in the up-to-date treating method of the destruction under geological process, be to add fusing ring in locking device one end, metal ring is installed in locking device cylinder body one end, by metal ring, connect with locking device end connecting rod.When earthquake occurs, stressed while surpassing a certain about threshold value on locking device, metal ring buckling failure, locking device is deactivated, thus protection locking device is not damaged.
In real work, there is following limitation in existing locking device:
1, as adopted conventional locking device or MR damper to be difficult to avoid due to stressed excessive destruction under seismic loading;
2, as adopted, with the locking device of metal ring, can avoid the destruction of seismic load to locking device, but metal ring needs artificial replacing after destroying.Because metal ring will be issued to the limit at specified load, destroy on the other hand, therefore require cross section can not be too large, intensity can not be too high, yet due to the frequent effect of train load, fatigue problem is by requiring cross section to be the bigger the better.Therefore this contradiction causes the durability of fuse metal ring to be difficult to guarantee.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of locking device with gauge tap, can effectively control the vibration of bridge construction under High-speed Train Loads, can avoid again the destruction of seismic load to locking device, simultaneously again can relieving fatigue problem, and facilitate the reset of locking device.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
Locking device with gauge tap, comprise the hydraulic cylinder being formed by cylinder body, piston, the left chamber of piston both sides, right chamber are connected by the aperture being opened on piston, one end of hydraulic cylinder is fixedly connected with piston by piston rod, the other end is fixedly connected with cylinder body by cylinder body connecting rod, it is characterized in that: described cylinder body is fixedly installed control piper outward, the two ends of this control piper are connected with left chamber, right chamber respectively, are provided with by-pass valve control on control piper.
The beneficial effects of the utility model are, can effectively control the structural vibration that train load causes, can avoid again the destruction of locking device under geological process; By-pass valve control can conveniently reset after opening, and even can automatically reset, and has greatly reduced the reset work of locking device after earthquake; There is not Fatigue Life Problems in valve-type gauge tap, has improved the anti-fatigue performance of whole locking device, improves application life; Saved the rear expense of repairing and changing product of shake.
The utility model can be used in the Dun Liang connection of Long-Span Railway Cable-Stayed Bridge, suspension bridge and similar bridge.
Accompanying drawing explanation
This manual comprises as next width accompanying drawing:
Fig. 1 is the structural representation of the locking device of the utility model band gauge tap.
Component shown in figure, toponym and corresponding mark: cylinder body 10, left chamber 10a, right chamber 10b, piston 11, piston rod 12, cylinder body connecting rod 13, control piper 20, by-pass valve control 21.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, locking device with gauge tap of the present utility model, comprise the hydraulic cylinder being formed by cylinder body 10, piston 11, left chamber 10a, the right chamber 10b of piston 11 both sides are connected by the aperture being opened on piston 11, one end of hydraulic cylinder is fixedly connected with piston 11 by piston rod 12, and the other end is fixedly connected with cylinder body 10 by cylinder body connecting rod 13.Described cylinder body 10 is outer is fixedly installed control piper 20, and the two ends of this control piper 20 are connected with left chamber 10a, right chamber 10b respectively, are provided with by-pass valve control 21 on control piper 20.
During normal work, the by-pass valve control 21 of control piper 20 is closed.Under temperature action, when locking device extremely slowly moves, the liquid in cylinder body 10 in left chamber 10a, right chamber 10b can freely flow back and forth by the aperture of piston 11, and locking device does not stress.When being subject to the load actions such as train, the liquid in left chamber 10a, right chamber 10b also can only flow freely by the aperture on piston 10, but flowing velocity is subject to the restriction in aperture, and at this moment locking device is stressed to control the relative motion of Dun Liang.
When coming earthquake, stressed increase gradually on locking device, the corresponding increase of hydraulic pressure at piston 10 two ends, when pressure differential reaches certain numerical value, the by-pass valve control 21 of control piper 20 is opened, and the liquid in left chamber 10a, right chamber 10b can flow freely in piston 10 both sides by control piper 20, and locking device is stressed just to be discharged rapidly, deactivate, avoided under the effect of larger earthquake velocity pulse locking device stressed excessive and destroy.After earthquake, then closing control valve 21, whole device is got back to again locking device duty.
Some principles of the locking device of the above the utility model band gauge tap that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (1)
1. with the locking device of gauge tap, comprise by cylinder body (10), the hydraulic cylinder that piston (11) forms, the left chamber (10a) of piston (11) both sides, right chamber (10b) is connected by the aperture being opened on piston (11), one end of hydraulic cylinder is fixedly connected with piston (11) by piston rod (12), the other end is fixedly connected with cylinder body (10) by cylinder body connecting rod (13), it is characterized in that: the outer control piper (20) that is fixedly installed of described cylinder body (10), the two ends of this control piper (20) respectively with left chamber (10a), right chamber (10b) is connected, on control piper (20), be provided with by-pass valve control (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656310.XU CN203546581U (en) | 2013-10-23 | 2013-10-23 | Locking device with control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656310.XU CN203546581U (en) | 2013-10-23 | 2013-10-23 | Locking device with control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546581U true CN203546581U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320656310.XU Expired - Lifetime CN203546581U (en) | 2013-10-23 | 2013-10-23 | Locking device with control switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN203546581U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233951A (en) * | 2014-07-24 | 2014-12-24 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Multifunctional viscous damper and connecting method of multifunctional viscous damper |
| CN104480853A (en) * | 2015-01-09 | 2015-04-01 | 中铁二院工程集团有限责任公司 | Piston type longitudinal force transmitting coupling beam device |
| CN106758766A (en) * | 2016-11-10 | 2017-05-31 | 中铁大桥勘测设计院集团有限公司 | A kind of viscous damper and the bridge of the viscous damper is installed |
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN109306659A (en) * | 2018-09-25 | 2019-02-05 | 中铁二院工程集团有限责任公司 | A kind of fluid viscous damper adding free inching gear |
| CN110306422A (en) * | 2019-06-17 | 2019-10-08 | 同济大学 | A kind of novel seismic isolation device |
| CN113502734A (en) * | 2021-07-21 | 2021-10-15 | 河北工业大学 | Speed locking type three-order yield damper capable of achieving self-resetting |
-
2013
- 2013-10-23 CN CN201320656310.XU patent/CN203546581U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233951A (en) * | 2014-07-24 | 2014-12-24 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Multifunctional viscous damper and connecting method of multifunctional viscous damper |
| CN104233951B (en) * | 2014-07-24 | 2016-03-23 | 中铁大桥科学研究院有限公司 | A kind of multi-functional viscous damper and attaching method thereof |
| CN104480853A (en) * | 2015-01-09 | 2015-04-01 | 中铁二院工程集团有限责任公司 | Piston type longitudinal force transmitting coupling beam device |
| CN106758766A (en) * | 2016-11-10 | 2017-05-31 | 中铁大桥勘测设计院集团有限公司 | A kind of viscous damper and the bridge of the viscous damper is installed |
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN107906160B (en) * | 2017-12-13 | 2023-09-08 | 中铁二院工程集团有限责任公司 | Novel rod-type viscous damper |
| CN109306659A (en) * | 2018-09-25 | 2019-02-05 | 中铁二院工程集团有限责任公司 | A kind of fluid viscous damper adding free inching gear |
| CN109306659B (en) * | 2018-09-25 | 2024-01-23 | 中铁二院工程集团有限责任公司 | Liquid viscous damper additionally provided with free micro-motion device |
| CN110306422A (en) * | 2019-06-17 | 2019-10-08 | 同济大学 | A kind of novel seismic isolation device |
| CN113502734A (en) * | 2021-07-21 | 2021-10-15 | 河北工业大学 | Speed locking type three-order yield damper capable of achieving self-resetting |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |