CN201990934U - Fixed type vibration isolation support for railway bridge - Google Patents
Fixed type vibration isolation support for railway bridge Download PDFInfo
- Publication number
- CN201990934U CN201990934U CN 201120030540 CN201120030540U CN201990934U CN 201990934 U CN201990934 U CN 201990934U CN 201120030540 CN201120030540 CN 201120030540 CN 201120030540 U CN201120030540 U CN 201120030540U CN 201990934 U CN201990934 U CN 201990934U
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- Prior art keywords
- vibration isolation
- seat plate
- seat board
- plate
- upper base
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- Vibration Prevention Devices (AREA)
Abstract
The utility model belongs to the technical field of bridges and building structures and relates to a fixed type vibration isolation support for a railway bridge. The fixed type vibration isolation support mainly comprises an upper seat plate (1), a vibration isolation rubber body (4) and a lower seat plate (5); limiting basin rings (1a and 5a) are respectively arranged on the upper seat plate (1) and the lower seat plate (5); the limiting basin ring (5a) of the lower seat plate extends into the limiting basin ring (1a) of the upper seat plate to form a mechanism for mutual constraint between the upper seat plate and the lower seat plate; the vibration isolation rubber body (4) positioned between the upper seat plate and the lower seat plate is provided with an upper sealing plate (4a) and a lower sealing plate (4b); a plane stainless steel sliding plate (2) attached onto the bottom surface of the upper seat plate and a plane low-friction sliding plate (3) inlaid in the upper sealing plate form a plane friction pair; and the lower sealing plate (4b) and the lower seat plate (5) are connected into a whole. The fixed type vibration isolation support can satisfy the vibration isolation requirements of a bridge and has the characteristics of resisting the horizontal force in each direction, limiting the horizontal displacement and realizing the rotation.
Description
Technical field
The utility model belongs to bridge and building structure technology field, relates generally to a kind of railroad bridge fixed vibration isolating suspension.
Background technology
When train passes through bridge, bridge will vibrate, and then pass to ground by Bridge Pier.
Flourish along with track traffic, vibration that is produced by train operation and noise also more and more are subject to people's attention the influence of environment; Reducing the vibration of track traffic and reduce noise, is the quality of life that improves resident along the line, the key subject of protecting railway surrounding enviroment and track traffic sustainable development; It is one of important vibration isolation measure that vibration isolating suspension is set between bridge and pier.
Vibration isolating suspension is that railroad bridge subtracts the vitals in the vibrating isolation system, and its performance directly influence subtracts vibration isolating effect; Mostly adopt rubber vibration isolating suspension that elastomeric material makes as isolation mounting in the prior art because the elasticity and the damping characteristic of rubber, make the rubber damping bearing to subtract vibration isolating effect very outstanding, particularly the excellent anti-vibration performance that subtracts is arranged for dither.The bridge beam body fixed end should be provided with and can bear each fixed bearing to horizontal force and limit levels displacement, but existing rubber vibration isolating suspension is to satisfy horizontal movement and less horizontal rigidity is provided by shear strain, can't satisfy the requirement of special line for passenger trains to fixed bearing.
CN200620163864.6 discloses a kind of rubber vibration isolating suspension, but it still lacks rigidity in the horizontal direction, can not bear big horizontal force and limit levels displacement, usually need and one be exclusively used in the device (as fixed shearing tenon) that bears horizontal force, limiting displacement and be used together, make troubles to installing and using.
Summary of the invention
The purpose of this utility model is to propose a kind of railroad bridge fixed vibration isolating suspension, makes its vibration isolation requirement that can satisfy bridge, and has each characteristic to horizontal force, limit levels displacement, realization rotating function of opposing, satisfies the requirement of bridge to fixed bearing.
The utility model is for finishing its invention task by the following technical solutions:
A kind of railroad bridge fixed vibration isolating suspension, described vibration isolating suspension mainly comprise upper base plate, vibration isolation rubber body and following seat board; Be provided with respectively on described upper base plate and following seat board and limit the basin ring, following seat board restriction basin ring stretches in the upper base plate restriction basin ring, constitutes the mechanism that retrains mutually between upper base plate and the following seat board; Described vibration isolation rubber body between upper base plate and following seat board has upper sealing plate and following shrouding; The described plane stainless steel slide plate that pastes in the upper base plate bottom surface constitutes the planar friction pair with the plane low friction slide plate that is embedded in the upper sealing plate; Described shrouding down is connected as a single entity with following seat board.
The bottom of shrouding has round boss under described vibration isolation rubber body, and corresponding described round boss has the cylinder groove of joining with its kissing on the seat board down, and described round boss is embedded in down in the cylinder groove of seat board.
Described vibration isolation rubber body is a cylinder.
Described plane low friction slide plate is the polytetrafluoroethylene (PTFE) slide plate.
Described plane low friction slide plate is the modified ultra-high molecular weight polyethylene slide plate.
A kind of railroad bridge fixed vibration isolating suspension that the utility model proposes, employing has the vibration isolation rubber body of given vertical dynamic and static rigidity, by changing the rigidity of system, and then the intrinsic frequency of change system, can reduce the influence of superstructure vibration, realize bridge vibration isolation function basis and surrounding enviroment; The constraint mechanism that is provided with makes bearing have big horizontal rigidity simultaneously, can bear each to horizontal force, and can limit the bearing horizontal movement; By having the planar friction pair of low-friction coefficient, reduced the rotary resistance of bearing, avoided the big shear strain of rubber bodies simultaneously, and then the application life of having improved bearing; And have installation, characteristics easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model direction across bridge.
Fig. 2 for the A-A of Fig. 1 to partly cuing open schematic diagram.
Fig. 3 for the B-B of Fig. 1 to partly cuing open schematic diagram.
Among the figure: 1, upper base plate, 1a, upper base plate restriction basin ring,, the plane stainless steel slide plate, 3, the plane slide plate, 4, the vibration isolation rubber body, 5, seat board down, 5a, seat board restriction basin ring down.
The specific embodiment
With specific embodiment the utility model is illustrated in conjunction with the accompanying drawings, but does not constitute restriction of the present utility model:
As Fig. 1, Fig. 2, shown in Figure 3, a kind of railroad bridge fixed vibration isolating suspension, described vibration isolating suspension mainly comprise upper base plate 1, vibration isolation rubber body 4 and following seat board 5; At described upper base plate 1 and following seat board 5 restriction basin ring (1a, 5a) is set respectively, following seat board restriction basin ring 5a stretches among the upper base plate restriction basin ring 1a, constitute the mechanism that retrains mutually between upper base plate and the following seat board, enough horizontal rigidities are provided, each can be born to horizontal force, and the bearing horizontal movement can be limited; Described vibration isolation rubber body 4 between upper base plate 1 and following seat board 5 has upper sealing plate 4a and following shrouding 4b; Described vibration isolation rubber body 4 is a cylinder, form by multilayer steel plates and the superimposed sulfuration of rubber, has given vertical dynamic and static rigidity, by changing the rigidity of system, and then the intrinsic frequency of change system, play and subtract the vibration isolation effect, can reduce the influence of superstructure vibration, realize the anti-vibration performance of bearing basis and surrounding enviroment; The described plane stainless steel slide plate 2 that pastes in the upper base plate bottom surface constitutes the planar friction pair with the low friction in the plane slide plate 3 that is embedded in the upper sealing plate groove, has low friction factor, reduce the bearing rotary resistance, avoided the big shear strain of rubber bodies simultaneously, and then the application life of having improved bearing; Described plane low friction slide plate 3 is polytetrafluoroethylene (PTFE) slide plate or modified ultra-high molecular weight polyethylene slide plate; The bottom of shrouding 4b has round boss under described vibration isolation rubber body, corresponding described round boss has the cylinder groove of joining with its kissing on the seat board 1 down, described round boss is embedded in down in the cylinder groove of seat board, avoids the vibration isolation rubber body position to move, and easy to assembly.
Claims (5)
1. railroad bridge fixed vibration isolating suspension, described vibration isolating suspension mainly comprises upper base plate (1), vibration isolation rubber body (4) and following seat board (5); It is characterized in that: restriction basin ring (1a, 5a) is set respectively on described upper base plate (1) and following seat board (5), and following seat board restriction basin ring (5a) stretches in the upper base plate restriction basin ring (1a), constitutes the mechanism of mutual constraint between upper base plate and the following seat board; Described vibration isolation rubber body (4) between upper base plate and following seat board has upper sealing plate (4a) and following shrouding (4b); The described plane stainless steel slide plate (2) that pastes in the upper base plate bottom surface constitutes the planar friction pair with the plane low friction slide plate (3) that is embedded in the upper sealing plate; Described shrouding (4b) down is connected as a single entity with following seat board (5).
2. railroad bridge fixed vibration isolating suspension according to claim 1, it is characterized in that: the bottom of shrouding (4b) has round boss under described vibration isolation rubber body, corresponding described round boss has the cylinder groove of joining with its kissing on the seat board (5) down, and described round boss is embedded in down in the cylinder groove of seat board.
3. railroad bridge fixed vibration isolating suspension according to claim 1 is characterized in that: described vibration isolation rubber body (4) is a cylinder.
4. railroad bridge fixed vibration isolating suspension according to claim 1 is characterized in that: described plane low friction slide plate (3) is the polytetrafluoroethylene (PTFE) slide plate.
5. railroad bridge fixed vibration isolating suspension according to claim 1 is characterized in that: described plane low friction slide plate (3) is the modified ultra-high molecular weight polyethylene slide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120030540 CN201990934U (en) | 2011-01-28 | 2011-01-28 | Fixed type vibration isolation support for railway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120030540 CN201990934U (en) | 2011-01-28 | 2011-01-28 | Fixed type vibration isolation support for railway bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990934U true CN201990934U (en) | 2011-09-28 |
Family
ID=44667423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120030540 Expired - Lifetime CN201990934U (en) | 2011-01-28 | 2011-01-28 | Fixed type vibration isolation support for railway bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201990934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529536A (en) * | 2019-08-16 | 2019-12-03 | 安徽神剑科技股份有限公司 | A kind of rubber spring installing lateral stiffness limiter additional |
-
2011
- 2011-01-28 CN CN 201120030540 patent/CN201990934U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529536A (en) * | 2019-08-16 | 2019-12-03 | 安徽神剑科技股份有限公司 | A kind of rubber spring installing lateral stiffness limiter additional |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |