CN203890861U - Intelligent speed locking device - Google Patents
Intelligent speed locking device Download PDFInfo
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- CN203890861U CN203890861U CN201420215734.7U CN201420215734U CN203890861U CN 203890861 U CN203890861 U CN 203890861U CN 201420215734 U CN201420215734 U CN 201420215734U CN 203890861 U CN203890861 U CN 203890861U
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- locking device
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Abstract
The utility model provides an intelligent speed locking device, comprising a double ejector rod piston cylinder, wherein a sealing device is arranged between the piston the cylinder body, the cylinder body is divided into a left sealed cavity chamber and a right sealed cavity chamber by the piston; the piston rod at one end of the cylinder body is fixedly connected to a first lug, and the other end, opposite to the first lug, of the cylinder body is provided with a second lug which is fixedly connected to the cylinder body; liquid medium is filled with the left and right cavity chambers of the cylinder body; the left and right cavity chambers are respectively connected to an intelligent control unit through the corresponding oil outlet; the intelligent speed locking device is applied to bridges and building engineering for resisting impact load caused by earthquake and heavy wind, capable of accurately controlling and locking speed, intelligently adjusting internal pressure of the cylinder barrel according to environmental temperature and intelligently adjusting the locking state according to size of load, can well adapt to slow movement of the bridges and buildings being influenced by factors of temperature change and the like, and provides effects on limiting and transferring load when under impact load caused by earthquake and heavy wind, and thereby deficiencies of the existing locking device are effectively solved.
Description
Technical field
The utility model belongs to bridge, construction work subtracts seismic isolation technology field, is the speed locking device of resisting earthquake, strong wind and cause impact load for bridge, construction work about a kind of, relates in particular to a kind of intelligent speed locking device.
Background technology
The harm that earthquake causes bridge and building structure is huge, adopt what kind of mode on bridge and building structure subtract, shock insulation is processed will directly affect the life-span of earthquake disaster Bridge and building structure.China's many earthquake zones that distributing within the border, have more than a large amount of regional earthquake motion peak accelerators reach 0.25g, seismic fortification intensity is 8 degree, and what have even reaches 0.40g, be that seismic fortification intensity 9 is spent, the key factor that need to consider when therefore shock resistance is bridge and design of building structures.In the time of earthquake motion peak accelerator≤0.2g, seismic design adopts the strength and stiffness of strengthening part self to realize more, in the time of earthquake motion peak accelerator > 0.2g, now only rely on the increase of structure self strength and stiffness to be difficult to the anti seismic efficiency that reaches desirable, and employing reasonably subtracts, isolation measure can improve the cost performance of bridge and building structure, effectively reduce construction costs, improve the seismic response of structure simultaneously.
In recent years, along with subtracting the perfect of the progress of seismic isolation technology and seismic isolation design specification, increasing bridge, construction work adopt seismic isolation design, and the supporting shock insulation product that subtracts also develops rapidly, wherein speed locking device be commonly use subtract one of shock insulation product.
Existing speed locking device is made up of parts such as cylinder body, piston, piston rod, resisting medium, end cap, otic placodes (ring) conventionally, resisting medium is full of the cavity before and after piston, the related piston of piston rod can slide at the inner chamber of cylinder body, resisting medium, in piston sliding process, flow to another cavity by a cavity by the gap between piston and cylinder body.Very fast when the sliding speed of piston, when resisting medium has little time by gap because of the viscosity of self, structure is locked, becomes load transfer device.
Speed locking device (Lock-up Device) is a kind of speed dependent type device, and it is arranged between the structure of relative displacement conventionally, between the beam body of bridge and bridge pier, between the superstructure and basis of building structure.In the time that slow relative displacement appears in two structures of its connection, speed locking device can pass through the displacement described in the flexible adaptation of self, and produces less flexible resistance, is equivalent to a telescopic spring; In the time that the relative displacement speed of two structures of its connection reaches its lock speed, speed locking device is locked, between self parts, without relative sliding, becomes rigidity connecting rod completely, realizes the transmission of adjacent structure power.
Speed locking device (speed lock) is arranged on the beam-ends of bridge conventionally, is connected with beam body and bridge pier by anchor plate; The normally movable pier of bridge pier of speed lock is set, be can produce relative sliding between beam body and bridge pier, between beam body and bridge pier, not slidable bridge pier is anchor block, horizontal loading on bridge is (when non-earthquake as vehicle frictional force, brake force, tractive force etc., when earthquake, be seismic forces) reach basis, ground by anchor block, therefore anchor block conventionally larger than movable pier size, cost is high.Normal operating conditions causes that the reason that beam-ends slides has: when environment temperature height changes, beam body has the variation of length direction, produces beam end displacement thereby vehicular load also can cause that beam body deforms.The speed that beam-ends slides is very slow, and the normal slip of beam-ends should ensure smooth and easy in the time of non-earthquake motion, otherwise can cause the internal force of beam body.But when earthquake, seismic load also can cause the relative sliding between beam and pier, the speed of this motion is exceedingly fast, when sliding speed that the beam-ends of speed lock produces being set while reaching the lock speed of lock, beam and pier are by locked, without relative displacement, now movable pier has also become anchor block, jointly bears seismic load with original anchor block.Therefore arrange after speed lock, movable pier can use as anchor block, and anchor block originally gets final product optimal design, reduces size, thereby reduces construction costs.
At present, the speed lock of applying in engineering is by clearance control lock speed and latching force between piston and cylinder barrel, there is following problem in this structure: one) lock speed depends on the gap between piston and cylinder barrel, and that this gap is realized in processing and manufacturing is very difficult, tend to cause the lock speed of the same batch products of same model all inconsistent, therefore the operating mode of bringing into play lock function is also inconsistent, and the speed lock affecting in a bridge or one whole building plays a role simultaneously; Two) resisting medium of filling is silica gel or the very large fluid of viscosity, such medium temperature correlation is large, especially in low temperature (subzero 20 DEG C) situation, resisting medium hardness significantly increases, be difficult to flow, resistance increment while making normally to slide, causes that the additional force of beam body and pier increases, to structure generation adverse influence; Three) product is in the time of high temperature or low temperature, and expanding with heat and contract with cold of resisting medium can produce subsidiary stress to cylinder body, and subsidiary stress can significantly reduce cylinder barrel resists the ability of earthquake; Four) latching force of this kind of locking device and lock speed have functional relation, when the relative displacement speed producing when earthquake exceedes lock speed and reaches certain numerical value, the latching force (that is: the load of its transmission) that locking device produces is by the load that exceedes its structure and self can bear, the local damage or the locking device entirety that cause locking device structure are destroyed, thereby lose the effect of transmitting load, seismic measures lost efficacy.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of intelligent speed locking device, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of intelligent speed locking device, precisely to control lock speed.
Another object of the present utility model is to provide a kind of intelligent speed locking device, and identification load also produces overload protection, regulates the oil pressure in cylinder barrel by pressostat, eliminates the cylinder barrel subsidiary stress that variations in temperature causes.
Another object of the present utility model is to provide a kind of intelligent speed locking device, according in environment temperature adjustment cylinder barrel press, according to load adjustment lock-out state, adapt to better bridge, the slow motion of building under factors such as being subject to variations in temperature affects, and in the time that earthquake, strong wind cause impact load, provide spacing and transmit load action.
The purpose of this utility model is achieved in that a kind of intelligent speed locking device, comprises a pair of rod piston rod, between piston and cylinder body, is provided with sealing device, by piston, cylinder body is divided into left chamber and the right chamber of sealing; The piston rod of cylinder body one end is fixedly connected with the first otic placode, and the cylinder body other end relative with the first otic placode is provided with the second otic placode, and described the second otic placode is fixedly connected with cylinder body; In the left and right chamber of described cylinder body, be full of liquid medium; Left and right chamber is connected with an intelligent control unit by corresponding oil-out respectively; Described intelligent control unit comprises two equidirectional the first pipeline and the second pipelines that are arranged in parallel and are respectively equipped with the one way valve that two conducting directions are identical, is provided with the 3rd pipeline of a flow valve and the first pipeline and the second pipeline and is arranged in parallel; In described flow valve, be provided with metering hole, described flow valve one side is parallel with an overflow valve; In described the first pipeline, be sequentially with the first and second one way valves, in the second pipeline, be sequentially with the third and fourth one way valve, between described the first one way valve and the second one way valve, be connected to the oil-out of cylinder body left chamber by one the 5th pipeline; Between described the 3rd one way valve and the 4th one way valve, be connected to the oil-out of the right chamber of cylinder body by one the 6th pipeline.
In a preferred embodiments of the present utility model, in described flow valve, be provided with the control button that regulates metering hole flow.
In a preferred embodiments of the present utility model, connect a pressostat in described the 3rd pipeline one end by one the 4th pipeline.
In a preferred embodiments of the present utility model, described pressostat comprises a seal chamber, is provided with an elastic bag in sealing cavity, is full of the gas of rated pressure in this elastic bag; Described seal chamber by the 4th pipeline connection in intelligent control unit.
In a preferred embodiments of the present utility model, described intelligent control unit and pressostat are fixed on outer wall of cylinder block.
In a preferred embodiments of the present utility model, described the 5th pipeline is connected with the first quick union by one the 5th one way valve, described the 5th one way valve by the first quick union to the 5th pipeline one-way conduction; Described the 6th pipeline is connected with the second quick union by one the 6th one way valve, described the 6th one way valve by the second quick union to the 6th pipeline one-way conduction.
In a preferred embodiments of the present utility model, on described the first otic placode and the second otic placode, be respectively equipped with ball socket bearing, in ball socket bearing, be provided with bearing pin.
In a preferred embodiments of the present utility model, described liquid medium is silicone oil or hydraulic oil.
From the above mentioned, intelligent speed locking device of the present utility model, can be used for that bridge, construction work are resisted earthquake, strong wind causes impact load, it has accurate control lock speed, according to pressing in environment temperature adjustment cylinder barrel, according to load adjustment lock-out state; Can adapt to well bridge, the slow motion of building under factors such as being subject to variations in temperature affects, and in the time that earthquake, strong wind cause impact load, provide spacing and transmit load action; Thereby effectively solve the deficiency existing in existing locking device.
Brief description of the drawings
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the structural representation of the utility model intelligent speed locking device.
Fig. 2: be the sectional structure schematic diagram of the utility model intelligent speed locking device.
Fig. 3: be the structural principle schematic diagram of intelligent control unit in the utility model.
Detailed description of the invention
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast brief description of the drawings detailed description of the invention of the present utility model.
As shown in Figure 1 and Figure 2, the utility model proposes a kind of intelligent speed locking device 100, described intelligent speed locking device 100 comprises a pair of rod piston rod 1, between piston 11 and cylinder body 13, is provided with sealing device, by piston 11, cylinder body 13 is divided into left chamber 131 and the right chamber 132 of sealing; The piston rod 12 of cylinder body one end is fixedly connected with the first otic placode 21, and cylinder body 13 other ends relative with the first otic placode 21 are provided with the second otic placode 22, and described the second otic placode 22 is fixedly connected with cylinder body 13; In the left and right chamber 131,132 of described cylinder body, be full of liquid medium, in the present embodiment, described liquid medium is low-viscosity silicone oil or hydraulic oil; Left and right chamber 131,132 is connected with an intelligent control unit 3 by corresponding oil-out 1311,1321 respectively; As shown in Figure 3, described intelligent control unit 3 comprises two equidirectional the first pipeline 31 and the second pipelines 32 that are arranged in parallel and are respectively equipped with the one way valve that two conducting directions are identical, is provided with the 3rd pipeline 33 of a flow valve 331 and the first pipeline 31 and the second pipeline 32 and is arranged in parallel; In described flow valve 331, be provided with metering hole (not shown), described flow valve 331 1 sides are parallel with an overflow valve 332; In described the first pipeline 31, be sequentially with the first one way valve 311 and the second one way valve 312, in the second pipeline 32, be sequentially with the 3rd one way valve 321 and the 4th one way valve 322, between described the first one way valve 311 and the second one way valve 312, be connected to the oil-out 1311 of cylinder body left chamber 131 by one the 5th pipeline 35; Between described the 3rd one way valve 321 and the 4th one way valve 322, be connected to the oil-out 1321 of the right chamber 132 of cylinder body by one the 6th pipeline 36.In described flow valve 331, be provided with the control button (not shown) that regulates metering hole flow, the initial value of adjustable metering hole diameter, thus regulating the size of controlling flow, this control flow is relevant to lock speed; In the time that design lock speed changes, this adjusting button capable of regulating flow quantity is to adapt to this variation.
From the above mentioned, intelligent speed locking device of the present utility model, can realize accurate control lock speed; In the present embodiment, by flow valve 331 by the metering hole control unit interval in valve by the total amount of liquid of valve body, this total amount is the product in flowing velocity, metering hole aperture, therefore in the time that flowing velocity raises, metering hole aperture dwindles, in the time that liquid flow velocity reaches control rate, metering hole is closed, and device locks and produce latching force.The flowing velocity of liquid is determined by the movement velocity of piston 11, when setting piston 11 speed V
0during for device lock speed, corresponding liquid flow speed V
1for the control rate of flow valve 331.
In the time that speed locking device is normally worked, the liquid medium that left chamber is 131 li flows to flow valve 331 by oil-out 1311 by the first one way valve 311, and flow valve 331 is controlled total flow: when media flow speed, V is less than control rate V
1time, liquid, by flow valve 331, enters right chamber 132 through the 4th one way valve 322 by oil-out 1321, and device produces the slippage of corresponding resistance and piston, and this engraving device is equivalent to a spring; When media flow speed, V equals control rate V
1time, liquid moment cannot be passed through flow valve 331, i.e. and device locking, produces corresponding latching force, and piston is without slippage, and this timer is equivalent to be rigidly connected; When media flow speed, V is greater than control rate V
1time, overflow valve 332 is opened, only allow partially liq pass through overflow valve 332 (this overflow valve is pilot-operated type, can self-inspection oil pressure, when lock speed is greater than control rate, overflow valve is opened, allow partially liq to pass through), this partially liq enters right chamber 132 by the 4th one way valve 322 and oil-out 1321, when device produces the resistance identical with latching force, piston has slippage in a small amount, and this timer is equivalent to plasticity and connects.
Identical oppositely time: the liquid medium that right chamber is 132 li flows to flow valve 331 by oil-out 1321 by the 3rd one way valve 321, and flow valve 331 is controlled total flow: when media flow speed, V is less than control rate V
1time, liquid normally passes through flow valve 331, and produces corresponding resistance, enters left chamber 131 through the second one way valve 312 by oil-out 1311; When media flow speed, V equals control rate V
1time, liquid moment cannot be passed through flow valve 331, i.e. and device locking, produces corresponding latching force; When media flow speed, V is greater than control rate V
1time, overflow valve 332 is opened, and only allows partially liq to pass through overflow valve 332, and this partially liq enters left chamber 131 by the second one way valve 312 and oil-out 1311, and device produces latching force, and piston has a small amount of slippage.
Further, as shown in Figure 1, Figure 2 and Figure 3, in the present embodiment, connect a pressostat (or being called accumulator) 4 in described the 3rd pipeline 33 one end by one the 4th pipeline 34, pressostat 4 ends are the quick union 41 that is provided with one way valve; Described pressostat 4 comprises a seal chamber, is provided with an elastic bag in sealing cavity, is full of the gas of rated pressure in this elastic bag; Described seal chamber is communicated in intelligent control unit 3 by the 4th pipeline 34.The operating principle of pressostat is: in the time that temperature raises, medium volume in left and right chamber increases, pressure increases, now the liquid of left chamber 131 flows into pressostat 4 by oil-out 1311 and the first one way valve 311 and flow valve 331 through the 4th pipeline 34, the liquid of right chamber 132 flows into the cavity of pressostat 4 through the 4th pipeline 34 by oil-out 1321 and the 3rd one way valve 321 and flow valve 331, make the pressure in left and right chamber keep stable; In the time that temperature reduces, medium volume-diminished in the chamber of left and right, produce vacuum pressure, now the liquid medium in pressostat 4 enters left chamber 131 by the 4th pipeline 34 and the second one way valve 312 and oil-out 1311, enter right chamber 132 by the 4th pipeline 34 and the 4th one way valve 322 and oil-out 1321 simultaneously, make the pressure in the chamber of left and right keep stable.
As shown in Figure 2, in the present embodiment, described intelligent control unit 3 and pressostat 4 are secured by bolts in the outer wall of cylinder body 13.Described cylinder body 13 is to be made up of the end cover at a cylinder barrel and two ends thereof, and described oil-out 1311,1321 is separately positioned on two end covers.On described the first otic placode 21 and the second otic placode 22, be respectively equipped with ball socket bearing 5, can make speed locking device still normally work under certain deflection angle; In ball socket bearing 5, be provided with bearing pin 51.
In the present embodiment, on the piston rod in end cap outside, cylinder barrel left side, be provided with protective cover 6, this protective cover 6 can prevent that impurity from entering in cylinder barrel 13.
In the present embodiment, described the 5th pipeline 35 is connected with the first quick union 352 by one the 5th one way valve 351, described the 5th one way valve 351 by the first quick union 352 to the 5th pipeline 35 one-way conductions; Described the 6th pipeline 36 is connected with the second quick union 362 by one the 6th one way valve 361, described the 6th one way valve 361 by the second quick union 362 to the 6th pipeline 36 one-way conductions.The first quick union 352 with the second quick union 362 for being connected outside oil circuit; By the first quick union 352 and the second quick union 362 perfusion fluid medium in cavity to the left and right respectively, quick connector can be measured fluid pressure in cavity by Bonding pressure table simultaneously, realizes the real-time monitoring of pressure.
From the above mentioned, intelligent speed locking device of the present utility model, can be used for that bridge, construction work are resisted earthquake, strong wind causes impact load, it has accurate control lock speed, according to pressing in environment temperature adjustment cylinder barrel, according to load adjustment lock-out state; Can adapt to well bridge, the slow motion of building under factors such as being subject to variations in temperature affects, and in the time that earthquake, strong wind cause impact load, provide spacing and transmit load action; Thereby effectively solve the deficiency existing in existing locking device.
The foregoing is only the schematic detailed description of the invention of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations and the amendment under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (8)
1. an intelligent speed locking device, comprises a pair of rod piston rod, between piston and cylinder body, is provided with sealing device, by piston, cylinder body is divided into left chamber and the right chamber of sealing; The piston rod of cylinder body one end is fixedly connected with the first otic placode, and the cylinder body other end relative with the first otic placode is provided with the second otic placode, and described the second otic placode is fixedly connected with cylinder body; It is characterized in that: in the left and right chamber of described cylinder body, be full of liquid medium; Left and right chamber is connected with an intelligent control unit by corresponding oil-out respectively; Described intelligent control unit comprises two equidirectional the first pipeline and the second pipelines that are arranged in parallel and are respectively equipped with the one way valve that two conducting directions are identical, is provided with the 3rd pipeline of a flow valve and the first pipeline and the second pipeline and is arranged in parallel; In described flow valve, be provided with metering hole, described flow valve one side is parallel with an overflow valve; In described the first pipeline, be sequentially with the first and second one way valves, in the second pipeline, be sequentially with the third and fourth one way valve, between described the first one way valve and the second one way valve, be connected to the oil-out of cylinder body left chamber by one the 5th pipeline; Between described the 3rd one way valve and the 4th one way valve, be connected to the oil-out of the right chamber of cylinder body by one the 6th pipeline.
2. intelligent speed locking device as claimed in claim 1, is characterized in that: in described flow valve, be provided with the control button that regulates metering hole flow.
3. intelligent speed locking device as claimed in claim 1, is characterized in that: connect a pressostat in described the 3rd pipeline one end by one the 4th pipeline.
4. intelligent speed locking device as claimed in claim 3, is characterized in that: described pressostat comprises a seal chamber, is provided with an elastic bag in sealing cavity, is full of the gas of rated pressure in this elastic bag; Described seal chamber by the 4th pipeline connection in intelligent control unit.
5. intelligent speed locking device as claimed in claim 3, is characterized in that: described intelligent control unit and pressostat are fixed on outer wall of cylinder block.
6. intelligent speed locking device as claimed in claim 1, is characterized in that: described the 5th pipeline is connected with the first quick union by one the 5th one way valve, described the 5th one way valve by the first quick union to the 5th pipeline one-way conduction; Described the 6th pipeline is connected with the second quick union by one the 6th one way valve, described the 6th one way valve by the second quick union to the 6th pipeline one-way conduction.
7. intelligent speed locking device as claimed in claim 1, is characterized in that: on described the first otic placode and the second otic placode, be respectively equipped with ball socket bearing, be provided with bearing pin in ball socket bearing.
8. intelligent speed locking device as claimed in claim 1, is characterized in that: described liquid medium is silicone oil or hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215734.7U CN203890861U (en) | 2014-04-29 | 2014-04-29 | Intelligent speed locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215734.7U CN203890861U (en) | 2014-04-29 | 2014-04-29 | Intelligent speed locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890861U true CN203890861U (en) | 2014-10-22 |
Family
ID=51717283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420215734.7U Withdrawn - After Issue CN203890861U (en) | 2014-04-29 | 2014-04-29 | Intelligent speed locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203890861U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952969A (en) * | 2014-04-29 | 2014-07-30 | 中国铁道科学研究院铁道建筑研究所 | Intelligent speed lock-up device |
| CN107142840A (en) * | 2017-03-23 | 2017-09-08 | 清华大学 | A kind of horizontal self-locking device of bridge freely-supported bearing antidetonation |
| CN113896121A (en) * | 2021-10-08 | 2022-01-07 | 徐州重型机械有限公司 | Crane bolt type telescopic system and crane |
-
2014
- 2014-04-29 CN CN201420215734.7U patent/CN203890861U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952969A (en) * | 2014-04-29 | 2014-07-30 | 中国铁道科学研究院铁道建筑研究所 | Intelligent speed lock-up device |
| CN103952969B (en) * | 2014-04-29 | 2015-10-28 | 中国铁道科学研究院铁道建筑研究所 | Intelligent speed locking device |
| CN107142840A (en) * | 2017-03-23 | 2017-09-08 | 清华大学 | A kind of horizontal self-locking device of bridge freely-supported bearing antidetonation |
| CN113896121A (en) * | 2021-10-08 | 2022-01-07 | 徐州重型机械有限公司 | Crane bolt type telescopic system and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20151028 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |