CN2551678Y - Vibration-proof bearing - Google Patents
Vibration-proof bearing Download PDFInfo
- Publication number
- CN2551678Y CN2551678Y CN 02235405 CN02235405U CN2551678Y CN 2551678 Y CN2551678 Y CN 2551678Y CN 02235405 CN02235405 CN 02235405 CN 02235405 U CN02235405 U CN 02235405U CN 2551678 Y CN2551678 Y CN 2551678Y
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- CN
- China
- Prior art keywords
- seat board
- hydraulic cylinder
- cylinder
- piston
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vibration Prevention Devices (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a supporting seat, in particular to an aseismatic bearing which comprises an upper seat board and a lower seat board that is flexibly amounted to the lower part of the upper seat board; a shock-absorption device is arranged between the lower seat board and the upper seat board. The shock-absorption device comprises a hydraulic cylinder that is fixed on the upper surface of the lower seat board, the inner side of the hydraulic cylinder body is provided with a piston in the sliding way, a strip micro-hole that is communicated with two side hydraulic cavities is arranged on the piston, the inner end of a cylinder rod of the hydraulic cylinder is respectively and symmetrically matched and connected to the two sides of the piston, and the outer end of the cylinder rod of the hydraulic cylinder is clamped and arranged between the upper blocks at the lower part of the upper seat board through the cylinder wall. The utility model resolves the problems of the prior movable supporting seat that has no shock-absorption function, and not only has the advantages of a movable supporting seat, but also has the shock-absorption function on the horizontal-moving direction, and has simple structure.
Description
Technical field
The utility model relates to a kind of bearing, is meant a kind of aseismatic bearing especially.
Background technology
Existing unidirectional or bi-directional movable bearing does not all possess function of seismic resistance on its moving direction, when earthquake takes place, have only the direction across bridge of fixed bearing or unidirectional freely movable bearing can bear seismic forces in the bearing of bridge bottom, easily causes the generation of beam phenomenon.
Summary of the invention
The purpose of this utility model is to provide a kind of and possesses the movable aseismatic bearing of function of seismic resistance to overcome
The deficiency of prior art.
Overall structure of the present utility model is:
Aseismatic bearing comprises upper base plate 1 and the active following seat board 2 that is coupled to its underpart; Be provided with antishock device between described seat board 2 down and the upper base plate 1, this antishock device comprises the fixing hydraulic cylinder 5 of seat board 2 upper surfaces down, the cylinder body inner slide of hydraulic cylinder 5 is combined with piston 7, offer the bar shaped micropore 8 that is communicated with its both sides hydraulic cavities on the piston 7, cylinder bar 6 the inners of hydraulic cylinder 5 fixed symmetrical respectively are coupled to the both sides of piston 7, and cylinder bar 6 outer ends of hydraulic cylinder 5 are connected between the last block 3 of upper base plate 1 bottom behind the casing wall by hydraulic cylinder 5 respectively.
The soffit of last block 3 and upper base plate 1 is for fixedlying connected.
The cylinder body outside of hydraulic cylinder 5 is by the following block 4 and the following seat board 2 of seat board 2 upper surfaces fixedly are assembled into an integral body down.
Be filled with liquid refrigerant respectively in the hydraulic cavities of piston 7 both sides of hydraulic cylinder 5 inside.
The utility model can be symmetrical arranged two groups or four groups of antishock devices respectively in use between the upper base plate 1 of bearing and following seat board 2.
The utility model is work like this:
In normal operation, the beam body on bearing top expands with heat and contract with cold because of variations in temperature, promote upper base plate 1 and do horizontal movement with respect to following seat board 2, because of the cycle that ambient temperature changes is grown (24 hours), liquid refrigerant in the hydraulic cylinder 5 can slowly be switched mutually by the bar shaped micropore of offering on the piston 78, so upper base plate 1 can move with respect to following seat board 2.
When earthquake took place, higher because of acceleration, and the diameter of bar shaped micropore 8 was very little, liquid refrigerant in the hydraulic cylinder 5 in the hydraulic cavities of the left and right sides can not be switched rapidly, causes the cylinder bar 6 of hydraulic cylinder 5 not move, and aseismatic bearing is in stationary state, can bear horizontal force, thereby possess function of seismic resistance.
The obtained technological progress of the utility model is:
The utility model had both had the advantage of freely movable bearing, made simultaneously it possess function of seismic resistance on direction moving horizontally again, and was simple in structure.
Description of drawings
Fig. 1 is user mode figure of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to view.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
The overall structure of present embodiment as shown, wherein be provided with four groups of antishock devices altogether between the upper base plate 1 of aseismatic bearing and the following seat board 2, these four groups of antishock devices are respectively with respect to the distribution that is centrosymmetric of the center of upper base plate 1 and following seat board 2, hydraulic cylinder 5 described in every group of antishock device is the double end oil cylinder, liquid refrigerant is a hydraulic oil, the inferior part of the cylinder block of hydraulic cylinder 5 is connected in down between the following block 4 of seat board 2 upper surfaces, following block 4 and last block 3 respectively with following seat board 2 and upper base plate 1 integrated moulding, all the other structures are as described above.
Claims (4)
1, aseismatic bearing comprises upper base plate (1) and the active following seat board (2) that is coupled to its underpart; It is characterized in that being provided with antishock device between described seat board (2) down and the upper base plate (1), this antishock device comprises the fixing hydraulic cylinder (5) of seat board (2) upper surface down, the cylinder body inner slide of hydraulic cylinder (5) is combined with piston (7), offer the bar shaped micropore (8) that is communicated with its both sides hydraulic cavities on the piston (7), cylinder bar (6) the inner of hydraulic cylinder (5) fixed symmetrical respectively is coupled to the both sides of piston (7), and cylinder bar (6) outer end of hydraulic cylinder (5) is connected between the last block (3) of upper base plate (1) bottom behind the casing wall by hydraulic cylinder (5) respectively.
2, aseismatic bearing according to claim 1 is characterized in that the described soffit of block (3) and upper base plate (1) of going up is for fixedlying connected.
3, aseismatic bearing according to claim 1, the cylinder body outside that it is characterized in that described hydraulic cylinder (5) is by the following block (4) and the following seat board (2) of seat board (2) upper surface fixedly are assembled into an integral body down.
4, aseismatic bearing according to claim 1 is characterized in that being filled with liquid refrigerant respectively in the hydraulic cavities of piston (7) both sides that described hydraulic cylinder (5) is inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235405 CN2551678Y (en) | 2002-05-08 | 2002-05-08 | Vibration-proof bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235405 CN2551678Y (en) | 2002-05-08 | 2002-05-08 | Vibration-proof bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2551678Y true CN2551678Y (en) | 2003-05-21 |
Family
ID=33709924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02235405 Expired - Fee Related CN2551678Y (en) | 2002-05-08 | 2002-05-08 | Vibration-proof bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2551678Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718077B (en) * | 2008-10-09 | 2011-05-25 | 上海市城市建设设计研究院 | Bridge girder anti-seismic bearing |
| CN102953329A (en) * | 2012-11-27 | 2013-03-06 | 柳州东方工程橡胶制品有限公司 | Bridge viscous damping shock-absorption supporting seat |
| CN105780640A (en) * | 2015-12-04 | 2016-07-20 | 东南大学 | Resettable shape memory alloy (SMA) multidimensional vibration isolating support |
| CN107419656A (en) * | 2017-05-28 | 2017-12-01 | 吴淑霞 | A kind of antidetonation bridge pad |
-
2002
- 2002-05-08 CN CN 02235405 patent/CN2551678Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718077B (en) * | 2008-10-09 | 2011-05-25 | 上海市城市建设设计研究院 | Bridge girder anti-seismic bearing |
| CN102953329A (en) * | 2012-11-27 | 2013-03-06 | 柳州东方工程橡胶制品有限公司 | Bridge viscous damping shock-absorption supporting seat |
| CN105780640A (en) * | 2015-12-04 | 2016-07-20 | 东南大学 | Resettable shape memory alloy (SMA) multidimensional vibration isolating support |
| CN107419656A (en) * | 2017-05-28 | 2017-12-01 | 吴淑霞 | A kind of antidetonation bridge pad |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |