CN203080405U - Spherical steel bearing - Google Patents
Spherical steel bearing Download PDFInfo
- Publication number
- CN203080405U CN203080405U CN2013201158386U CN201320115838U CN203080405U CN 203080405 U CN203080405 U CN 203080405U CN 2013201158386 U CN2013201158386 U CN 2013201158386U CN 201320115838 U CN201320115838 U CN 201320115838U CN 203080405 U CN203080405 U CN 203080405U
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- bearing
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- lower support
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Abstract
The utility model belongs to the technical field of bridge bearing and discloses a spherical steel bearing. The spherical steel bearing is mainly characterized by comprising an upper bearing plate and a lower bearing plate, wherein a plurality of first annular storage grooves filled with a lubricating material are formed on the concave surface on the top of the lower bearing plate, a spherical cap lining board is arranged between the upper bearing plate and the lower bearing plate, and a plurality of second annular storage grooves filled with the lubricating material are formed on the plane on the top of the spherical cap lining board. By adopting the spherical steel bearing disclosed by the utility model, contact pressure stress allowable value is greatly improved so that structural plane size can be designed to be very low; simultaneously, as polytetrafluoroethylene and stainless steel are eliminated, the weight of the bearing is greatly reduced so that the manufacturing cost is lower; and under the effect of the lubricating material, initial friction coefficient between bearing friction pairs is not greater than 0.03 so that the bearing can meet telescopic deformation and vertical rotation requirements of the bridge.
Description
Technical field
The utility model belongs to the bridge pad technical field, relates in particular to a kind of spherical steel support.
Background technology
The beam bridge girder construction is made up of superstructures such as girder and bridge deck and substructures such as pier and basis, and mobile loads such as bridge superstructure deadweight and vehicle and pedestrian load pass to bridge pier by bearing or abutment arrives the basis at last.Superstructure is because the distortion that a variety of causes produces to the influence of substructure, also will rely on bearing to alleviate.
In the bridge engineering, oneself is through generally using spherical steel support at present.Spherical the fixed of steel support is made up of upper bracket plate and lower support plate 2 big hardwares, the upper bracket plate and and lower support plate between the spherical rotation friction pair is arranged.The unidirectional movable and bi-directional movable formula of spherical steel support is made up of upper bracket plate, spherical crown liner plate and lower support plate 3 big hardwares, between upper bracket plate and spherical crown liner plate the planar slide friction pair is arranged, and the spherical rotation friction pair is arranged between spherical crown liner plate and lower support plate.
China's existing " spherical bearing technical condition " GB/T17955-2009, stipulated in the sliding friction pair of bearing or pivoting friction pair, to use polyfluortetraethylene plate as pressure-bearing and wearing piece, JTJ023-85 has stipulated that the allowable compressive stress of polyfluortetraethylene plate is 30MPa to existing bridge gauge " highway reinforced concrete and prestressed concrete bridge are contained design specifications ", and the allowable tensile stress of hardware is 140MPa.Therefore, according to worst design criterion, decision structural plan size is exactly the planar dimension of planar slide friction pair and spherical rotation friction pair in the spherical steel support design.This form restricts spherical steel support structure to the dexterity development on the one hand; On the other hand because the actual compressive stress of hardware all in the level of 30MPa, far below the allowable tensile stress of hardware, has caused the waste of material.
The utility model content
The technical problems to be solved in the utility model just provides that a kind of physical dimension is little, cost is lower, Total tune is good, meets the spherical steel support that " spherical bearing technical condition " GB/T17955-2009 requires.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: comprise upper bracket plate, lower support plate, the concave curved surface at described lower support plate top is provided with the first annular holding tank that multiple tracks is filled with lubriation material.
Its additional technical feature is: be provided with the spherical crown liner plate between described upper bracket plate and lower support plate, the plane at spherical crown liner plate top is provided with the second annular holding tank that multiple tracks is filled with lubriation material.
A kind of spherical steel support provided by the utility model, the spherical rotation friction pair is made up of the lubriation material in the first annular holding tank on spherical crown liner plate or upper bracket plate, lower support plate, the lower support plate top concave curved surface.The planar slide friction pair is made up of the lubriation material in the second annular holding tank on upper bracket plate, spherical crown liner plate and the spherical crown liner plate top plan.Lubriation material on the spherical crown liner plate top plan in the second annular holding tank and upper bracket plate are when grinding, under 23 ± 2 ℃ normal temperature condition, compressive stress should satisfy following requirement when 120MPa: initial confficient of static friction is not more than 0.03, and the line rate of wear is not more than 5 μ m/km.Lubriation material includes but not limited to graphite, silicone grease, butter and composition thereof.
A kind of spherical steel support provided by the utility model, planar slide friction pair, spherical rotation friction pair are actual to be that the face of steel and steel contacts, its contact compressive stress permissible value is brought up to 120MPa, thus spherical steel support structural plan size can design very for a short time; Owing to saved polytetrafluoroethylene (PTFE) and stainless steel, bearing weight is reduced greatly, thereby makes that spherical steel support cost is lower simultaneously; Initial confficient of static friction is not more than 0.03 between the effect undersetting friction pair of lubriation material, thereby has guaranteed that spherical steel support adapts to the dilatation and the vertical requirement of rotating of bridge.
Description of drawings
Fig. 1 is the fixed structural representation of a kind of spherical steel support of the utility model;
Fig. 2 is a kind of unidirectional movable structural representation of spherical steel support;
Fig. 3 is a kind of structural representation of bi-directional movable formula of spherical steel support.
The specific embodiment
Be described in further details below in conjunction with the concrete structure of accompanying drawing a kind of spherical steel support of the utility model.
As shown in Figure 1, the stationary structure of a kind of spherical steel support of the utility model comprises upper bracket plate 1, lower support plate 2, and the concave curved surface at lower support plate 2 tops is provided with the first annular holding tank 4 that multiple tracks is filled with lubriation material 3.Shown in Fig. 2,3, a kind of unidirectional movable and bi-directional movable formula structure of spherical steel support comprises upper bracket plate 1, lower support plate 2,2 of upper bracket plate 1 and lower support plate are provided with spherical crown liner plate 5, the concave curved surface at lower support plate 2 tops is provided with the first annular holding tank 4 that multiple tracks is filled with lubriation material 3, and the plane at spherical crown liner plate 5 tops is provided with the second annular holding tank 6 that multiple tracks is filled with lubriation material 3.
A kind of spherical steel support provided by the utility model fixed, the planar ends bondbeam body at upper bracket plate 1 top, the concave curved surface at lower support plate 2 tops is provided with the ringwise first annular holding tank 4, be filled with lubriation material 3 in the first annular holding tank 4, the planar ends of lower support plate 2 bottoms is in conjunction with pier.
Fixed spherical steel support adapts to the mechanism of the vertical rotational deformation of bridge: the spherical rotation friction pair is made up of upper bracket plate 1, lubriation material 3 and lower support plate 2, at the convex surface of upper bracket plate 1 bottom in the concave curved surface rotation process at lower support plate 2 tops, lubriation material 3 is caught up with between the concave curved surface at the convex surface of upper bracket plate 1 bottom and lower support plate 2 tops to form one deck lubricating film, under the effect of lubriation material 3, initial confficient of static friction is not more than 0.03 between the spherical rotation friction pair, thereby has guaranteed that spherical steel support adapts to the vertical requirement of rotating of bridge.
Fixed spherical steel support transmits the mechanism of bridge horizontal loading: the horizontal loading of bridge superstructure passes to upper bracket plate 1 by the beam body, pass to the concave curved surface at lower support plate 2 tops again by the convex surface of upper bracket plate 1 bottom, pass to pier by lower support plate 2 at last.
A kind of spherical steel support provided by the utility model unidirectional movable, the planar ends bondbeam body at upper bracket plate 1 top, the plane at spherical crown liner plate 5 tops is provided with the ringwise second annular holding tank 6, the concave curved surface at lower support plate 2 tops is provided with the ringwise first annular holding tank 4, be filled with lubriation material 3 in first annular holding tank 4, the second annular holding tank 6, the planar ends of lower support plate 2 bottoms is in conjunction with pier.
Unidirectional movable spherical steel support adapts to the mechanism of the vertical rotational deformation of bridge: the spherical rotation friction pair is made up of spherical crown liner plate 5, lubriation material 3 and lower support plate 2, at the convex surface of spherical crown liner plate 5 bottoms in the concave curved surface rotation process at lower support plate 2 tops, lubriation material 3 is caught up with between the concave curved surface at the convex surface of spherical crown liner plate 5 bottoms and lower support plate 2 tops to form one deck lubricating film, under the effect of lubriation material, initial confficient of static friction is not more than 0.03 between the spherical rotation friction pair, thereby has guaranteed that spherical steel support adapts to the vertical requirement of rotating of bridge.
Unidirectional movable spherical steel support adapts to the mechanism of bridge dilatation: the planar slide friction pair is made up of upper bracket plate 1, lubriation material 3 and spherical crown liner plate 5, in the relative sliding process of upper surface of the soffit of upper bracket plate 1 and spherical crown liner plate 5, lubriation material 3 is caught up with between the upper surface of the soffit of upper bracket plate 1 and spherical crown liner plate 5 to form one deck lubricating film, initial confficient of static friction is not more than 0.03 between the effect lower plane sliding friction pair of lubriation material, thereby has guaranteed that spherical steel support adapts to the requirement of bridge dilatation.
Unidirectional movable spherical steel support transmits the mechanism of bridge horizontal loading: the horizontal loading of bridge superstructure passes to upper bracket plate 1 by the beam body, guiding block by upper bracket plate 1 both sides passes to spherical crown liner plate 5 again, pass to the concave curved surface of lower support plate 2 then by the convex surface of spherical crown liner plate 5, pass to pier by lower support plate 2 at last.
The bi-directional movable formula of a kind of spherical steel support provided by the utility model, the planar ends bondbeam body at upper bracket plate 1 top, the plane at spherical crown liner plate 5 tops is provided with the ringwise second annular holding tank 6, the concave curved surface at lower support plate 2 tops is provided with the ringwise first annular holding tank 4, be filled with lubriation material 3 in first annular holding tank 4, the second annular holding tank 6, the planar ends of lower support plate 2 bottoms is in conjunction with pier.
The spherical steel support of bi-directional movable formula adapts to the mechanism of the vertical rotational deformation of bridge: the spherical rotation friction pair is made up of spherical crown liner plate 5, lubriation material 3 and lower support plate 2, at the convex surface of spherical crown liner plate 5 bottoms in the concave curved surface rotation process at lower support plate 2 tops, lubriation material 3 is caught up with between the concave curved surface at the convex surface of spherical crown liner plate 5 bottoms and lower support plate 2 tops to form one deck lubricating film, under the effect of lubriation material, initial confficient of static friction is not more than 0.03 between the spherical rotation friction pair, thereby has guaranteed that spherical steel support adapts to the vertical requirement of rotating of bridge.
The spherical steel support of bi-directional movable formula adapts to the mechanism of bridge dilatation: the planar slide friction pair is made up of upper bracket plate 1, lubriation material 3 and spherical crown liner plate 5, in the relative sliding process of upper surface of the soffit of upper bracket plate 1 and spherical crown liner plate 5, lubriation material 3 is caught up with between the upper surface of the soffit of upper bracket plate 1 and spherical crown liner plate 5 to form one deck lubricating film, initial confficient of static friction is not more than 0.03 between the effect lower plane sliding friction pair of lubriation material, thereby has guaranteed that spherical steel support adapts to the requirement of bridge dilatation.
A kind of novel ball steel support provided by the utility model is not limited only to above-mentioned form, but no matter be to adopt which kind of form, as long as structure is identical with the utility model, all falls into protection domain of the present utility model.
Claims (2)
1. a spherical steel support comprises upper bracket plate, lower support plate, it is characterized in that: the concave curved surface at described lower support plate top is provided with the first annular holding tank that multiple tracks is filled with lubriation material.
2. a kind of spherical steel support according to claim 1 is characterized in that: be provided with the spherical crown liner plate between described upper bracket plate and lower support plate, the plane at spherical crown liner plate top is provided with the second annular holding tank that multiple tracks is filled with lubriation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201158386U CN203080405U (en) | 2013-03-14 | 2013-03-14 | Spherical steel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201158386U CN203080405U (en) | 2013-03-14 | 2013-03-14 | Spherical steel bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203080405U true CN203080405U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201158386U Expired - Fee Related CN203080405U (en) | 2013-03-14 | 2013-03-14 | Spherical steel bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN203080405U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862577A (en) * | 2016-04-29 | 2016-08-17 | 铁道第三勘察设计院集团有限公司 | Bridge force measurement swivel support with real-time monitoring function |
| CN108265621A (en) * | 2018-03-27 | 2018-07-10 | 江苏万宝桥梁构件有限公司 | A kind of spherical bearing easy to install |
| CN109371825A (en) * | 2018-10-31 | 2019-02-22 | 重庆交通大学 | Novel damping energy dissipating support |
| CN111945554A (en) * | 2020-07-29 | 2020-11-17 | 长江勘测规划设计研究有限责任公司 | Long-acting self-lubricating high-durability spherical support and lubricating method thereof |
| CN112554047A (en) * | 2020-12-25 | 2021-03-26 | 尚德建设集团有限公司 | Bridge ultra-thin steel support |
| CN114197297A (en) * | 2021-09-28 | 2022-03-18 | 中铁建湖高速公路有限公司 | Soft soil foundation bridge head bump elimination device |
-
2013
- 2013-03-14 CN CN2013201158386U patent/CN203080405U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862577A (en) * | 2016-04-29 | 2016-08-17 | 铁道第三勘察设计院集团有限公司 | Bridge force measurement swivel support with real-time monitoring function |
| CN108265621A (en) * | 2018-03-27 | 2018-07-10 | 江苏万宝桥梁构件有限公司 | A kind of spherical bearing easy to install |
| CN109371825A (en) * | 2018-10-31 | 2019-02-22 | 重庆交通大学 | Novel damping energy dissipating support |
| CN111945554A (en) * | 2020-07-29 | 2020-11-17 | 长江勘测规划设计研究有限责任公司 | Long-acting self-lubricating high-durability spherical support and lubricating method thereof |
| CN112554047A (en) * | 2020-12-25 | 2021-03-26 | 尚德建设集团有限公司 | Bridge ultra-thin steel support |
| CN114197297A (en) * | 2021-09-28 | 2022-03-18 | 中铁建湖高速公路有限公司 | Soft soil foundation bridge head bump elimination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20170314 |