CN112376412A - Bridge support capable of keeping exposed height of sliding plate - Google Patents
Bridge support capable of keeping exposed height of sliding plate Download PDFInfo
- Publication number
- CN112376412A CN112376412A CN202011339336.2A CN202011339336A CN112376412A CN 112376412 A CN112376412 A CN 112376412A CN 202011339336 A CN202011339336 A CN 202011339336A CN 112376412 A CN112376412 A CN 112376412A
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- Prior art keywords
- sliding
- plate
- ring
- sliding plate
- baffle ring
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- 238000007789 sealing Methods 0.000 claims description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/40—Plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge bearing capable of keeping the exposed height of a sliding plate, and relates to the technical field of bridge bearings.
Description
Technical Field
The invention relates to the technical field of bridge supports, in particular to a bridge support capable of keeping the exposed height of a sliding plate.
Background
With the development of bridge construction in China, more and more large-span bridges appear. The large-span bridges are generally constructed by suspension cables and stay cables, the displacement of the large-span bridges is many times higher than that of ordinary bridges, and the abrasion of suitable supports matched with the large-span bridges is larger. In the existing support structure, the height of the sliding plate exposed out of the support body is generally 3mm (the thickness of the sliding plate is 7mm, and the exposed height is 3 mm). However, after practical verification, it is found that the sliding plate exposed to the support body by 3mm cannot meet the requirement of a high abrasion amount environment (such as a large-span/large-displacement bridge), and the sliding plates are severely abraded after long-term friction work, so that the thickness of the sliding plates is reduced. When the slide thickness wearing and tearing reach the limit after, for guaranteeing that the support displacement function does not receive the slide wearing and tearing influence, need change the slide this moment, though the slide only is a very little part in the support structure, it then need carry out the jacking to the roof beam to change the slide, and this can lead to the fact the influence to the bridge floor is current.
Disclosure of Invention
The invention aims to provide a bridge support which is long in service life.
The scheme adopted by the invention for solving the technical problems is as follows:
a bridge support capable of keeping the exposed height of a sliding plate comprises a top plate part, the sliding plate and a support body which are sequentially arranged along the direction from top to bottom, wherein the support body comprises a pressure-bearing body and a baffle ring, the pressure-bearing body is arranged below the sliding plate and is abutted against the sliding plate, and the baffle ring is sleeved on the outer side of the sliding plate in a vertically sliding manner; the top of the sliding plate extends out of the top end of the baffle ring and forms a sliding friction pair with the bottom of the top plate part; an outer sealing ring for forming axial sealing is arranged between the baffle ring and the top plate part, the part of the sliding plate extending out of the top end of the baffle ring penetrates into the outer sealing ring, and two axial ends of the outer sealing ring are respectively abutted with the baffle ring and the bottom of the top plate part; the elastic body is arranged on the top of the pressure bearing body and supports the baffle ring and applies elastic force to the baffle ring to enable the baffle ring to have upward moving tendency.
Preferably, the outside of the baffle ring is formed with a connection lug, the connection lug is provided with a through hole extending along the vertical direction, the baffle ring further comprises an adjusting bolt, the thread section of the adjusting bolt penetrates through the through hole and is in threaded connection with a pressure-bearing body below the connection lug, the head of the adjusting bolt is abutted against the top surface of the connection lug, and the sliding stroke of the baffle ring is configured to enable the baffle ring to slide through the sinking of the baffle ring relative to the sliding plate, so that the sliding plate is separated from the baffle ring.
Preferably, the pressure-bearing body is provided with a sliding ring groove matched with the shape of the baffle ring, and the bottom end of the baffle ring extends into the sliding ring groove and is in sliding fit with the sliding ring groove.
Preferably, the elastic body is accommodated in the sliding ring groove, and two ends of the elastic body are respectively connected with the baffle ring and the groove bottom of the sliding ring groove.
Preferably, the elastic body is a plurality of compression springs which are installed in the sliding ring groove at regular intervals around the axis of the sliding ring groove.
Preferably, the sliding plate is sleeved with an inner sealing ring for forming radial sealing at the bottom of a contact surface of the sliding plate in sliding contact with the inner wall of the baffle ring.
Preferably, the top plate portion is mainly composed of a top plate body and a mirror-finished stainless steel plate, and the mirror-finished stainless steel plate constitutes a bottom portion of the top plate portion.
Preferably, the support body further comprises a lower support plate arranged below the pressure-bearing body, a spherical sliding plate is fixedly arranged on the lower support plate, and the spherical sliding plate and the pressure-bearing body form a ball pair.
Preferably, the sliding plate is made of polytetrafluoroethylene material so as to maintain excellent abrasion performance.
Preferably, the ratio of the height of the sliding plate extending out of the top end of the baffle ring to the thickness of the sliding plate is less than 1 to 2.
According to the invention, the baffle ring which can be vertically and slidably adjusted on the outer side of the sliding plate is arranged, so that when the sliding plate is in high abrasion loss, the baffle ring can overcome the elastic force of the elastic body and automatically sink under the action of the top plate part and the outer sealing ring, the exposed height of the sliding plate is always kept at a proper value, and the service life of the support is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a holder body in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
[ description of specific symbols ]:
1-top plate part, 11-top plate body, 12-mirror surface stainless steel plate;
2-a sliding plate, 21-an inner sealing ring;
3-a support body, 31-a pressure-bearing body, 32-a baffle ring, 33-a connecting lug, 34-an adjusting bolt, 35-a lower support plate and 36-a spherical sliding plate;
4-an outer sealing ring;
5-compression spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1 and fig. 2, the embodiment provides a bridge support capable of maintaining the exposed height of a sliding plate 2, which includes a top plate portion 1, the sliding plate 2 and a support body 3 sequentially arranged along a direction from top to bottom, where the support body 3 includes a pressure-bearing body 31 arranged below the sliding plate 2 and abutting against the sliding plate 2, and a baffle ring 32 vertically slidably sleeved on the outer side of the sliding plate 2; the top of the sliding plate 2 extends out of the top end of the baffle ring 32 and forms a sliding friction pair with the bottom of the top plate part 1; an outer sealing ring 4 for forming axial sealing is arranged between the baffle ring 32 and the top plate part 1, the part of the sliding plate 2 extending out of the top end of the baffle ring 32 penetrates into the outer sealing ring 4, and two axial ends of the outer sealing ring 4 are respectively abutted against the baffle ring 32 and the bottom of the top plate part 1; and an elastic body mounted on the top of the pressure bearing body 31, the elastic body supporting the retainer ring 32 and applying an elastic force to the retainer ring 32 to make it have a tendency to move upward.
In the using process of the bridge bearing, along with the abrasion between the top of the sliding plate 2 and the bottom of the top plate part 1, the thickness of the sliding plate 2 is gradually reduced, and the height of the part of the sliding plate 2 exposed out of the top end of the baffle ring 32 can not meet the requirement of the bridge bearing.
At this time, the top plate portion 1 begins to sink, and correspondingly applies a sinking force to the baffle ring 32 through the outer seal ring 4, the baffle ring 32 overcomes the elastic force applied thereto by the elastic body, and sinks and slides relative to the sliding plate 2, so that the height of the top of the sliding plate 2 extending out of the top of the baffle ring 32 is again in a proper range (in this embodiment, the height of the sliding plate 2 extending out of the top of the baffle ring 32 is specifically 3mm), and further the service life of the support is prolonged.
Meanwhile, as for the bridge bearing, how to improve the convenience of detaching and replacing the sliding plate 2 is always the main research and development direction, and as a preferred embodiment, in this embodiment, the outer side portion of the baffle ring 32 is formed with a connecting lug 33, the connecting lug 33 is provided with a through hole extending in the vertical direction, and further includes an adjusting bolt 34, a threaded section of the adjusting bolt 34 passes through the through hole and is in threaded connection with the pressure-bearing body 31 located below the connecting lug 33, a head portion of the adjusting bolt 34 abuts against a top surface of the connecting lug 33, and a sliding stroke of the baffle ring 32 is configured such that the baffle ring 32 can slide through sinking relative to the sliding plate 2, so that the sliding plate 2 is separated from the baffle ring 32.
This structure makes it possible to: when the bridge bearing faces the situation that the sliding plate 2 needs to be disassembled/replaced, an operator can screw in the adjusting bolt 34, so that the head of the adjusting bolt 34 drives the connecting lug 33 and the baffle ring 32 to sink and slide relative to the sliding plate 2, and the sliding plate 2 is separated from the baffle ring 32. At this time, the operator only needs to pull out the slide plate 2 from the side direction, and then inserts a new slide plate 2 between the pressure-bearing body 31 and the top plate 1, so as to complete the procedure of detaching/replacing the slide plate 2, which is more convenient to implement.
It can be understood that the practitioner can correspondingly select whether to set the engaging lug 33 according to his own requirements, please refer to fig. 3, which is a schematic structural diagram of embodiment 2 of the present invention, and the stop ring is not set with an engaging lug.
In the present embodiment, a sliding ring groove adapted to the shape of the baffle ring 32 is provided on the pressure-bearing body 31, and the bottom end of the baffle ring 32 extends into the sliding ring groove and is in sliding fit with the sliding ring groove.
The structure can ensure the sliding stability of the baffle ring 32 and avoid the overturning of the baffle ring.
In a preferred embodiment, the elastic body is accommodated in the sliding ring groove, and both ends of the elastic body are connected to the retainer ring 32 and the groove bottom of the sliding ring groove, respectively.
In the present embodiment, the elastic body is a plurality of compression springs 5, and the plurality of compression springs 5 are installed in the sliding ring groove at regular intervals around the axis of the sliding ring groove.
It is understood that the practitioner may also choose to replace the compression spring 5 with another elastic body such as a nylon tube according to his or her own needs.
Meanwhile, as for the sliding plate 2, when it is working, it bears a large pressure, and the problem of adhesion immersion easily occurs, which results in the corner of the sliding plate 2 immersing into the sliding contact surface between the inner wall of the baffle ring 32 and the sliding ring groove, so as to be a preferred embodiment, in this embodiment, the sliding plate 2 is sleeved with the inner sealing ring 21 for forming radial sealing at the bottom of the contact surface between the sliding plate 2 and the inner wall of the baffle ring 32, so as to avoid the corner of the sliding plate 2 immersing into the sliding contact surface between the inner wall of the baffle ring 32 and the sliding ring groove under the adhesion effect.
In the present embodiment, the top plate 1 is mainly composed of a top plate body 11 and a mirror surface stainless steel plate 12, the mirror surface stainless steel plate 12 is a bottom portion of the top plate 1, the top plate body 11 is mainly used for embedding in the member, and the mirror surface stainless steel plate 12 is mainly used for reducing the friction coefficient.
Meanwhile, the support body 3 further includes a lower support plate 35 disposed below the pressure-bearing body 31, a spherical sliding plate 36 is fixedly disposed on the lower support plate 35, and the spherical sliding plate 36 and the pressure-bearing body 31 form a ball pair, that is, the present embodiment is a bridge support with a ball pair. The implementer can correspondingly select other types of support bodies such as a plane sliding pair according to the self requirement.
In the present embodiment, the sliding plate 2 is made of teflon, which is specifically ultra-high performance teflon, and the friction surface of the sliding plate 2 can achieve the friction performance of the modified teflon sliding plate 2 after lubrication without filling lubricating silicone grease.
In addition, in the present embodiment, the thickness of the sliding plate 2 is 7mm, that is, the ratio of the height of the sliding plate 2 extending beyond the top end of the retainer ring 32 to the thickness of the sliding plate 2 is less than 1 to 2. The thickness of the skid plate 2 can be correspondingly increased by the practitioner to assist in improving the service life of the mount.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A bridge support capable of keeping the exposed height of a sliding plate comprises a top plate part, the sliding plate and a support body which are sequentially arranged along the direction from top to bottom, and is characterized in that the support body comprises a pressure-bearing body and a baffle ring, wherein the pressure-bearing body is arranged below the sliding plate and is abutted against the sliding plate, and the baffle ring is sleeved on the outer side of the sliding plate in a vertically sliding manner; the top of the sliding plate extends out of the top end of the baffle ring and forms a sliding friction pair with the bottom of the top plate part; an outer sealing ring for forming axial sealing is arranged between the baffle ring and the top plate part, the part of the sliding plate extending out of the top end of the baffle ring penetrates into the outer sealing ring, and two axial ends of the outer sealing ring are respectively abutted with the baffle ring and the bottom of the top plate part; the elastic body is arranged on the top of the pressure bearing body and supports the baffle ring and applies elastic force to the baffle ring to enable the baffle ring to have upward moving tendency.
2. A bridge bearing according to claim 1, wherein the stop ring is formed with an engaging lug at an outer side thereof, the engaging lug is provided with a through hole extending in a vertical direction, and further comprising an adjusting bolt having a threaded section passing through the through hole and being threadedly coupled to a pressure-receiving body disposed below the engaging lug, a head of the adjusting bolt being in abutment with a top surface of the engaging lug, and a sliding stroke of the stop ring being configured such that the stop ring can slide in a sinking manner relative to the slide plate to disengage the slide plate from the stop ring.
3. The bridge bearing according to claim 1, wherein the bearing body is provided with a sliding ring groove with a shape adapted to the shape of the retainer ring, and the bottom end of the retainer ring extends into the sliding ring groove and is in sliding fit with the sliding ring groove.
4. The bridge bearing according to claim 3, wherein the elastic body is received in the sliding ring groove, and both ends of the elastic body are respectively connected to the stopper ring and the groove bottom of the sliding ring groove.
5. A bridge bearer according to claim 4, wherein said resilient body is a plurality of compression springs mounted in said sliding ring groove at regular intervals around the axis of said sliding ring groove.
6. A bridge bearing capable of maintaining the exposed height of the sliding plate according to claim 5, wherein the sliding plate is sleeved with an inner sealing ring for forming radial seal at the bottom of the contact surface of the sliding plate, which is in sliding contact with the inner wall of the baffle ring.
7. A bridge support capable of maintaining the exposed height of a skateboard as defined in claim 1, wherein said top plate is mainly composed of a top plate body and a mirror-finished stainless steel plate constituting the bottom of said top plate.
8. A bridge bearing capable of maintaining the exposed height of a sliding plate according to claim 1, wherein said bearing body further comprises a lower bearing plate disposed under a bearing body, said lower bearing plate is fixedly provided with a spherical sliding plate, and said spherical sliding plate and said bearing body form a ball pair.
9. A bridge support for maintaining the exposed height of a skid plate according to claim 1, wherein said skid plate is made of teflon.
10. A bridge support for maintaining the exposed height of a skid plate as set forth in claim 1, wherein the ratio of the height of said skid plate extending beyond the top end of said retainer ring to the thickness of said skid plate is less than 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339336.2A CN112376412A (en) | 2020-11-25 | 2020-11-25 | Bridge support capable of keeping exposed height of sliding plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339336.2A CN112376412A (en) | 2020-11-25 | 2020-11-25 | Bridge support capable of keeping exposed height of sliding plate |
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| Publication Number | Publication Date |
|---|---|
| CN112376412A true CN112376412A (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011339336.2A Pending CN112376412A (en) | 2020-11-25 | 2020-11-25 | Bridge support capable of keeping exposed height of sliding plate |
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| Country | Link |
|---|---|
| CN (1) | CN112376412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411537A (en) * | 2021-12-29 | 2022-04-29 | 广东省公路建设有限公司 | Durable bridge support capable of quickly replacing sliding plate and adjusting method |
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| JP2003240051A (en) * | 1998-06-26 | 2003-08-27 | Bridgestone Corp | Slider |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411537A (en) * | 2021-12-29 | 2022-04-29 | 广东省公路建设有限公司 | Durable bridge support capable of quickly replacing sliding plate and adjusting method |
| CN114411537B (en) * | 2021-12-29 | 2023-12-12 | 广东省公路建设有限公司 | Durable bridge support capable of rapidly replacing sliding plate and adjusting method |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Hailiang Inventor after: Liu Cheng Inventor after: Qiu Tingqi Inventor after: Luo Mingcheng Inventor after: LAN Peng Inventor before: Liu Hailiang Inventor before: Liu Cheng Inventor before: Qiu Yanqi Inventor before: Luo Mingcheng Inventor before: LAN Peng |
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Effective date of registration: 20230113 Address after: 611430 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Applicant after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province Applicant before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |