CN201027893Y - Pressure limiting valve hydraulic damper - Google Patents
Pressure limiting valve hydraulic damper Download PDFInfo
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- CN201027893Y CN201027893Y CNU2006201521651U CN200620152165U CN201027893Y CN 201027893 Y CN201027893 Y CN 201027893Y CN U2006201521651 U CNU2006201521651 U CN U2006201521651U CN 200620152165 U CN200620152165 U CN 200620152165U CN 201027893 Y CN201027893 Y CN 201027893Y
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Abstract
The utility model discloses a pressure-limiting valve hydraulic damper, which comprises a cylinder body connected with a structure supporting point, a piston inside the cylinder body, a piston rod connected with a supporting rigid body, a through-hole running through a left and a right hydraulic cavities of the cylinder body, and a pressure-limiting valve arranged at the through-hole. The utility model has the advantages that fluid flowing is controlled more ideally; when external force is smaller than the limited value of the pressure-limiting valve, the piston does not move and the primary rigidity is very strong; when external force is larger than the limited value of the pressure-limiting valve, the piston moves , and the axial rigidity of the stage approaches zero and power wasting is fullest and most satisfying. Under the same condition of meeting the earthquake resistance and fortification standard, the structural resisting force reduces to a lower level; as the primary rigidity of the pressure-limiting valve is very strong, the wind vibration influence is reduced effectively, and the wind load is reduced with a remarkable decreasing of the cost of the building structure; in addition, the utility model is of simple constructive mechanism, low cost, and sensitive and precise movement with good effect.
Description
Technical field
The utility model relates to the hydraulic damper of energy-eliminating shock-absorbing in construction engineering, the municipal engineering, particularly be the pressure limit valve hydraulic damper of energy-eliminating shock-absorbing in construction engineering, the municipal engineering.
Background technique
Earthquake is a kind of serious natural disaster, and the many regions of China belong to the earthquake highly seismic region, with on July 28th, 1976 Tangshan Earthquake be example, the energy of its release is 400 times of Hiroshima,Japan explosion of atomic bomb intensity, dead 240,000, severely injured 160,000, lose 10,000,000,000.Building aseismicity only was to improve structural strength and strengthen construction measure, the opposing geological process in the past.Along with the mankind to the development of the understanding of antidetonation, begun to use methods such as shock insulation, shock absorbing in recent years and reduced geological process, be a kind of building aseismicity method of more advanced, science.
The shock absorbing main method of prior art is that damping device is installed in building, and the main type of this damping device has: mild steel damper, extruding lead damper, frcition damper, viscoelasticity hydraulic damper etc.
The structure of above-mentioned viscoelasticity hydraulic damper comprises: with support rigid body or one of them cylinder body that is connected of structure fulcrum; Piston in the cylinder body; With structure fulcrum or one of them piston rod that is connected of support rigid body; On piston, be provided with the through hole or the hole that connect its cylinder hydraulic chamber, both sides; Be full of the liquid of thickness in the cylinder body.The damping principle of this viscoelasticity hydraulic damper mainly is to realize damping by liquid viscosity effect and control flow rate, active force because of the external world, piston is exerted pressure to the liquid of a side, cause the liquid in the cylinder body to be expressed to opposite side by through hole or hole, building is produced action weaken with the liquid viscosity effect by a side.The hysteresis loop of this viscoelasticity hydraulic damper is shown in the oval curve among Fig. 1.
Well-known earthquake is a kind of energy, in limited stroke, and energy consumption big more, the efficient of damper is just high more.Change the area of the hysteresis loop bag of a saying structure reactance and make an appointment with greatly, damping is just good more.The oval hysteresis loop of above-mentioned viscoelasticity hydraulic damper also has the insufficient of most of distortion power consumption utilization, and is desirable not enough.The 5th country of the Ministry of Construction's 148 commands advocates and encourages to adopt advanced science and technology to carry out providing fortification against earthquakes of building engineering, and the usefulness of improving damper has tangible economic benefit and social benefit.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provide a kind of by the flowing of liquid in the open and close control cylinder body of pressure limit valve valve, thereby control piston moves, fully the pressure of earthquake energy limit valve hydraulic damper.
The technological scheme that solves the problems of the technologies described above is:
A kind of pressure limit valve hydraulic damper, the structure of this pressure limit valve hydraulic damper comprises: the cylinder body that is connected with the support rigid body; Piston in the cylinder body; The piston rod that is connected with the structure fulcrum has the through hole that connects left and right two hydraulic pressure cavity of cylinder body on piston; Be provided with pressure limit valve in this through hole.
A kind of pressure limit valve hydraulic damper, the structure of this pressure limit valve hydraulic damper comprises: the cylinder body that is connected with the structure fulcrum; Piston in the cylinder body; Piston rod with the support rigid body is connected has the through hole that connects left and right two hydraulic pressure cavity of cylinder body on piston; Be provided with pressure limit valve in this through hole.
The direction of described pressure limit valve setting is: flowed to right chamber and flowed to left chamber by the right chamber of cylinder body (2) by chamber, a cylinder body left side respectively, each direction is provided with a pressure limit valve at least; When a certain directional pressure is limit valve more than one, the suitable evenly setting of this directional pressure limit valve.
Described pressure limit valve comprises valve, support, spring; Spring one end is fixed on the support, and the spring the other end acts on the valve.
The pressure limit valve pressure set points of described both direction is for equating or not waiting one of them.
Also be provided with a spring between described cylinder body and piston, an end bearing of spring is on inboard wall of cylinder block, and its other end acts on the piston.
The beneficial effects of the utility model are: the utility model is that flow of fluid is obtained controlling even more ideally, and both, when external force was limit the valve limit value less than pressure, piston did not move, and initial stiffness is very big; When external force was limit the valve limit value greater than pressure, piston moved, and the axial rigidity in this stage levels off to zero, and consequently energy efficiency is greatly improved.Requiring under the prerequisite of the same satisfied standard of providing fortification against earthquakes, it is lower that structure reactance falls; Very big based on pressure limit valve initial stiffness, can reduce the wind influence of shaking effectively, can obviously reduce wind load, the expense of building structure significantly reduces.Hysteresis loop of the present utility model rectangular curve 12 as shown in Figure 1 is significantly greater than the oval hysteresis loop 11 of prior art.Power consumption of the present utility model is desirable, and structure mechanism is simple, and cost is low, and it is accurately effective to be active in one's movements.
After adding spring 13 in the cylinder body 2 among another embodiment of the present utility model, the external force of control piston about 5 two directions motion is same direction power, is suitable for the stayed structure that often is in certain tension force.
Description of drawings
Fig. 1 concerns hysteresis loop contrast schematic representation between the stressed F of two kinds of dampers and the displacement S, the hysteresis loop of oval expression prior art viscoelasticity hydraulic damper among the figure; Figure China and foreign countries rectangle frame is represented the utility model hysteresis loop;
Fig. 2 is the utility model structural representation;
Fig. 3 is the utility model erecting bed schematic representation;
Fig. 4 is another example structure schematic representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 concerns hysteresis loop contrast schematic representation between the stressed F of two kinds of dampers and the displacement S, the hysteresis loop 11 of oval expression prior art viscoelasticity hydraulic damper among the figure; Figure China and foreign countries rectangle frame is represented the utility model hysteresis loop 12, the area that on behalf of the utility model, dash area increase than the prior art power consumption; Fig. 2 is the utility model structural representation; Fig. 3 is the utility model erecting bed schematic representation; Fig. 4 is another example structure schematic representation of the utility model.
The utility model provides a kind of pressure limit valve hydraulic damper A, and the structure of this pressure limit valve hydraulic damper A comprises: the cylinder body 2 that is connected with support rigid body B; Piston 5 in the cylinder body 2; The piston rod 6 that is connected with structure fulcrum C has the through hole 7 that connects cylinder body 2 left and right two hydraulic pressure cavity 3,4 on piston 5; Be provided with pressure limit valve 1 at these through hole 7 places.
The utility model provides a kind of pressure limit valve hydraulic damper A, and the structure of this pressure limit valve hydraulic damper A comprises: the cylinder body 2 that is connected with structure fulcrum C; Piston 5 in the cylinder body 2; Piston rod 6 with support rigid body B is connected has the through hole 7 that connects cylinder body 2 left and right two hydraulic pressure cavity 3,4 on piston 5; Be provided with pressure limit valve 1 at these through hole 7 places.
The direction that described pressure limit valve 1 is provided with is: flowed to right chamber 4 and flowed to left chamber 3 by the right chamber 4 of cylinder body 2 by cylinder body 2 left chambeies 3 respectively, each direction is provided with a pressure limit valve 1 at least; When a certain directional pressure is limit valve 1 more than one, this directional pressure limit valve 1 suitable evenly setting.
Described pressure limit valve 1 comprises valve 8, support 10, spring 9; Spring 9 one ends are fixed on the support 10, and spring 9 the other ends act on the valve 8.
Pressure limit valve (1) pressure set points of described both direction is for equating or not waiting one of them.
As shown in Figure 4, be another embodiment of the present utility model, its structure is: other structures are same as structure shown in Figure 2, in this no longer repeat specification, its distinctive points is: also be provided with a spring 13 between described cylinder body 2 and piston 5, one end bearing of spring 13 is on cylinder body 2 inwalls, and its other end acts on the piston 5.The pressure limit valve damper of this form is that the external force control force of piston both direction motion in cylinder body is same direction, promptly is pulling force or pressure; This function is specially adapted to stayed structure, can make drag-line often be in certain tension state.
Below this practicality new type working principle and process are explained as follows:
Less when applied external force, when fluid pressure was less than setting value in the cylinder body 2, pressure was limit the valve closing of valve 1, and piston 5 is transfixion in cylinder body 2.Building does not have or micro displacement is only arranged, and has enough rigidity; When applied external force surmounts the valve pressure setting value of pressure limit valve 1, the valve opening of pressure limit valve 1, liquid is flowed in (left side) chamber to the right by (right side) chamber, a left side in the cylinder body 2, piston 5 moves in cylinder body 2, this stage rigidity of the utility model pressure limit valve hydraulic damper A is close to zero, building B, C begin distortion thereupon, no longer absorb bigger seismic energy, have reduced maximum geological process value.The hysteresis loop of pressure limit valve hydraulic damper A approaches rectangle, and its power consumption is desirable.
In another embodiment as shown in Figure 4, set up spring 13 in the cylinder body 2, the effect of setting up spring 13 is: after setting up spring 13, the external force of control piston about 5 two directions motion is same direction, promptly is pulling force or is pressure.When not adding spring 13, the external force of 5 liang of direction motions of control piston must be corresponding both direction.
Claims (6)
1. a pressure is limit the valve hydraulic damper, and the structure of this pressure limit valve hydraulic damper (A) comprising: the cylinder body that is connected with support rigid body (B); Piston in the cylinder body; Piston rod with structure fulcrum (C) is connected is characterized in that, the through hole (7) of left and right two hydraulic pressure cavity of perforation cylinder body (2) (3,4) is arranged on piston (5); Locate to be provided with pressure limit valve (1) at this through hole (7).
2. according to the limit of the pressure described in the claim 1 valve hydraulic damper, it is characterized in that, the direction that described pressure limit valve (1) is provided with is: flowed to right chamber (4) and flowed to left chamber (3) by the right chamber (4) of cylinder body (2) by the left chamber of cylinder body (2) (3) respectively, each direction is provided with a pressure limit valve (1) at least; When a certain directional pressure was limit valve (1) more than one, this directional pressure limit valve (1) is suitable evenly to be provided with.
3. according to the limit of the pressure described in claim 1 or 2 valve hydraulic damper, it is characterized in that described pressure limit valve (1) comprises valve (8), support (10), spring (9); Spring (9) one ends are fixed on the support (10), and spring (9) the other end acts on the valve (8).
4. according to the limit of the pressure described in the claim 2 valve hydraulic damper, it is characterized in that pressure limit valve (1) pressure set points of described both direction is for equating or not waiting one of them.
5. according to the limit of the pressure described in the claim 1 valve hydraulic damper, it is characterized in that, also be provided with a spring (13) between described cylinder body (2) and piston (5), an end of spring (13) props up title on cylinder body (2) inwall, and its other end acts on the piston (5).
6. a pressure is limit the valve hydraulic damper, and the structure of this pressure limit valve hydraulic damper (A) comprising: the cylinder body that is connected with structure fulcrum (C); Piston in the cylinder body; Piston rod with support rigid body (B) is connected is characterized in that the through hole (7) of left and right two hydraulic pressure cavity of perforation cylinder body (2) (3,4) is arranged on piston (5); Locate to be provided with pressure limit valve (1) at this through hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201521651U CN201027893Y (en) | 2006-12-28 | 2006-12-28 | Pressure limiting valve hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201521651U CN201027893Y (en) | 2006-12-28 | 2006-12-28 | Pressure limiting valve hydraulic damper |
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| Publication Number | Publication Date |
|---|---|
| CN201027893Y true CN201027893Y (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201521651U Expired - Fee Related CN201027893Y (en) | 2006-12-28 | 2006-12-28 | Pressure limiting valve hydraulic damper |
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| CN (1) | CN201027893Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493584A (en) * | 2011-11-18 | 2012-06-13 | 傅礼铭 | Seismic-reducing floor slab with cavities |
| CN104973238A (en) * | 2014-04-01 | 2015-10-14 | 波音公司 | Pneumatic positioning system |
| CN106438819A (en) * | 2016-11-29 | 2017-02-22 | 中国直升机设计研究所 | Pressure damper piston with dual-redundancy and dual-opening function |
| CN108425979A (en) * | 2018-05-11 | 2018-08-21 | 南京林业大学 | The fluid linking damper of liquid pressure self-regulation in a kind of cylinder |
| CN109577731A (en) * | 2018-11-07 | 2019-04-05 | 同济大学 | A kind of multilayer Tuned Liquid for Oversea wind power generation tower |
-
2006
- 2006-12-28 CN CNU2006201521651U patent/CN201027893Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493584A (en) * | 2011-11-18 | 2012-06-13 | 傅礼铭 | Seismic-reducing floor slab with cavities |
| CN104973238A (en) * | 2014-04-01 | 2015-10-14 | 波音公司 | Pneumatic positioning system |
| CN104973238B (en) * | 2014-04-01 | 2018-11-13 | 波音公司 | Pneumatic Position System |
| CN106438819A (en) * | 2016-11-29 | 2017-02-22 | 中国直升机设计研究所 | Pressure damper piston with dual-redundancy and dual-opening function |
| CN108425979A (en) * | 2018-05-11 | 2018-08-21 | 南京林业大学 | The fluid linking damper of liquid pressure self-regulation in a kind of cylinder |
| CN109577731A (en) * | 2018-11-07 | 2019-04-05 | 同济大学 | A kind of multilayer Tuned Liquid for Oversea wind power generation tower |
| CN109577731B (en) * | 2018-11-07 | 2020-10-02 | 同济大学 | Multi-layer tuned liquid damper for offshore wind power generation tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIU RUIHENG Free format text: NEW ADDRESS: 2-2-1403, TIANLINYUAN, FULICHENG, LAOCHENGXIANG, NANKAI DISTRICT, TIANJIN CITY, ZIP CODE:300101 |
|
| CP02 | Change in the address of a patent holder |
Address after: Tianjin Nankai District City, the old Chengxiang bodied City Tian Lin Garden 221403, zip code: 300101 Patentee after: Liu Ruihang Address before: Tianjin city Nankai District wangdingdi Jin Jie 4-2-503, zip code: 300191 Patentee before: Liu Ruihang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20101228 |