CN201517196U - Spherical support for railway simply-supported bridge - Google Patents

Spherical support for railway simply-supported bridge Download PDF

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Publication number
CN201517196U
CN201517196U CN 200920091619 CN200920091619U CN201517196U CN 201517196 U CN201517196 U CN 201517196U CN 200920091619 CN200920091619 CN 200920091619 CN 200920091619 U CN200920091619 U CN 200920091619U CN 201517196 U CN201517196 U CN 201517196U
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China
Prior art keywords
seat board
molecular weight
high molecular
weight polyethylene
spherical
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Expired - Lifetime
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CN 200920091619
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Chinese (zh)
Inventor
冯刚宪
金福海
李恒跃
何平根
顾海龙
王勇
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China Railway Siyuan Survey and Design Group Co Ltd
Luoyang Sunrui Special Equipment Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
Luoyang Sunrui Special Equipment Co Ltd
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Priority to CN 200920091619 priority Critical patent/CN201517196U/en
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Publication of CN201517196U publication Critical patent/CN201517196U/en
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Abstract

The utility model belongs to the technical field of bridges and building structures, and mainly relates to a spherical support for a railway simply-supported bridge, which mainly comprises an upper seat board 1, a middle seat board 4 and a lower seat board 7, wherein a stainless steel slide board 2 arranged at the bottom plane of the upper seat board 1 can form a plane sliding friction pair with a plane modified super high molecular weight polyethylene slide board 3 embedded on the upper surface of the middle seat board 4, the middle seat board 4 is of convex spherical structure, the lower seat board 7 is of concave spherical structure matched with the convex spherical structure of the middle seat board 4, a spherical stainless steel slide board 5 at the bottom of the middle seat board 4 can form a spherical sliding friction pair with a spherical modified super high molecular weight polyethylene slide board 6 embedded on the upper surface of the convex spherical surface of the lower seat board 7, a plane modified super high molecular weight polyethylene sealing ring 16 is arranged between the upper seat board 1 and the middle seat board 4, and a spherical modified super high molecular weight polyethylene sealing ring 17 is arranged between the middle seat board 4 and the lower seat board 7, and surrounds the spherical sliding friction pair. The spherical support has the characteristics of excellent durability, long service life, convenient replacement and construction and the like.

Description

The Simple Supported Railway Bridges spherical bearing
Technical field
The utility model belongs to the technical field of bridge and building structure, relates generally to a kind of Simple Supported Railway Bridges spherical bearing.
Background technology
Present domestic Simple Supported Railway Bridges adopts pot rubber bearing, cylinder steel support more.Pot rubber bearing is a kind of bridge pad of external exploitation at the end of the fifties.It adopts the rubber tile that is enclosed in the steel basin to bear upper load and adapts to the rotation of beam body, and the planar friction pair that adopts polytetrafluoroethylene (PTFE) and corrosion resistant plate to form adapts to the displacement of beam body.Pot rubber bearing simple structure, compact conformation, but because its inner rubber that adopts, life of product can be subjected to the influence in ageing of rubber life-span.In addition, the brass joint ring of pot bearing inside easily produces with steel basin inwall through long-time running and weares and teares, and causes rubber tile poorly sealed and extrude from the steel basin, thereby causes the inefficacy of bearing.
Spherical bearing is as a kind of novel bearing product, have advantages such as bearing capacity is big, corner is big, the scope of application is wide, good endurance, life-span length, highway bridge and railway continuous girder bridge now have been used for, because of its structure and size and simply supported girder bridge require there are differences, application is not arranged as yet on simply supported girder bridge at present.
Summary of the invention
The utility model proposes a kind of Simple Supported Railway Bridges spherical bearing, in order to improve the service life of bridge, problems such as the transportation interruption that minimizing brings because of the replacing bearing, maintenance cost increase.
The utility model is for finishing its invention task by the following technical solutions: the Simple Supported Railway Bridges spherical bearing, mainly comprise upper base plate, middle seat board and following seat board, the stainless steel slide plate that is provided with on the described upper base plate base plane constitutes the planar slide friction pair with the plane modified ultra-high molecular weight polyethylene slide plate that is embedded in middle seat board upper surface, realizes the horizontal direction displacement of bearing; Seat board is protruding spherical structure in described, described seat board down is the concave spherical surface structure that matches with the protruding sphere of middle seat board, in sphere stainless steel slide plate that is provided with and the sphere modified ultra-high molecular weight polyethylene slide plate formation sphere sliding friction pair that is embedded in down on the seat board concave spherical surface on the sphere of seat board bottom, realize the rotation displacement of bearing jointly with the planar slide friction pair; Be provided with plane modified ultra-high molecular weight polyethylene joint ring between upper base plate and middle seat board, ring encloses the planar slide friction pair; Be provided with sphere modified ultra-high molecular weight polyethylene joint ring between middle seat board and following seat board, ring encloses the sphere sliding friction pair.
Described upper base plate two ends have downward step, be provided with the guiding friction pair that constitutes by guiding stainless steel slide plate and guiding modified ultra-high molecular weight polyethylene slide plate in the gap between upper base plate and following seat board, wherein, described guiding stainless steel slide plate and upper base plate are connected as a single entity, described guiding modified ultra-high molecular weight polyethylene slide plate is embedded in down on the seat board, constitutes unidirectional movable ball-type seat structure.
Described upper base plate bottom has spacing basin ring, and spacing basin ring cooperates with the external cylindrical surface boss of following seat board, constitutes fixedly spherical bearing structure.
Described upper base plate is connected with beam portion pre-embedded steel slab by the pre-buried sleeve of beam portion, beam portion connecting bolt, and upper base plate is anchored in Liang Tishang.
Described seat board down is anchored on the buttress by stone bolt, sleeve and anchorage screw.
Owing to adopted technique scheme, the utlity model has following beneficial effect:
(1) adopts the sliding material of the higher modified ultra-high molecular weight polyethylene of supporting capacity, and, can dwindle the seat structure size by whole plate mosaic structure as friction pair.Simultaneously, the wear rate of modified ultra-high molecular weight polyethylene under higher sliding velocity is less, is more suitable for when the Simple Supported Railway Bridges sliding velocity is very fast the bearing requirement in application life.
(2) ring encloses the joint ring employing modified ultra-high molecular weight polyethylene material of planar friction pair and sphere friction pair, and sealing effectiveness is better, guarantees that simultaneously material is identical with friction pair application life.
(3) the bearing upper base plate adopts that seat board adopts stone bolt+sleeve+anchorage screw structure under the structure, bearing of beam portion pre-embedded steel slab, the pre-buried sleeve of beam portion and the connecting bolt anchoring of beam portion, make railway freely-supported bridge with spherical bearing be easy to heighten, replacing, convenient construction.
(4) by structural design optimization, make Simple Supported Railway Bridges satisfy the requirement of railway freely-supported Bridge Beam portion installation dimension with the beam portion installation dimension of spherical bearing.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the utility model embodiment 2 structural representations.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the utility model embodiment 3 structural representations.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the schematic diagram of spherical bearing hermetically-sealed construction.
Among the figure, 1, upper base plate, 2, the plane stainless steel slide plate, 3, plane modified ultra-high molecular weight polyethylene slide plate, 4, middle seat board, 5, sphere stainless steel slide plate, 6, sphere modified ultra-high molecular weight polyethylene slide plate, 7, following seat board, 8, pre-embedded steel slab at the bottom of the beam, 9, the pre-buried sleeve of beam portion, 10, beam portion connecting bolt, 11, stone bolt, 12, sleeve, 13, anchorage screw, 14, guiding modified ultra-high molecular weight polyethylene slide plate, 15, guiding stainless steel slide plate, 16, plane modified ultra-high molecular weight polyethylene joint ring, 17, sphere modified ultra-high molecular weight polyethylene joint ring.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1 provides multidirectional movable spherical bearing, and as shown in Figure 1 and Figure 2, it mainly is made up of parts such as upper base plate 1, middle seat board 4 and following seat boards 7.The plane stainless steel slide plate 2 that is welded on the upper base plate 1 constitutes the planar slide friction pairs with the plane modified ultra-high molecular weight polyethylene slide plate 3 that is embedded in middle seat board 4 upper surfaces, realizes the horizontal direction displacement of bearing; Seat board 4 is protruding spherical structure in described, described seat board down 7 is the concave spherical surface structure that matches with middle seat board 4 protruding spheres, be coated on sphere stainless steel slide plate 5 and the sphere modified ultra-high molecular weight polyethylene slide plate 6 formation sphere sliding friction pairs that are embedded in down on seat board 7 concave spherical surfaces on the seat board 4, realize the rotation displacement of bearing jointly with the planar slide friction pair.Pre-embedded steel slab 8 can make bearing upper base plate 1 and beam base concrete separate at the bottom of the beam, is convenient to carry out in the future the height of support adjustment.Upper base plate 1 is anchored in Liang Tishang by pre-buried sleeve 9 of beam portion and beam portion connecting bolt 10; Seat board 7 is anchored on the buttress by stone bolt 11, sleeve 12 and anchorage screw 13 under the bearing.During bearing replacement,, make the bearing unloading, beam portion connecting bolt 10 and stone bolt 11 are unscrewed removal, bearing can be taken out and change beam body jack-up slightly.
The hermetically-sealed construction of present embodiment is referring to Fig. 7; plane modified ultra-high molecular weight polyethylene joint ring 16 is embedded in the groove on plane on the middle seat board 4; sphere modified ultra-high molecular weight polyethylene joint ring 17 is embedded in down in the groove on seat board 7 concave spherical surfaces; ring encloses planar friction pair, sphere friction pair respectively, for planar friction pair, sphere friction pair provide seal protection.
The spherical bearing of present embodiment can realize simultaneously that the vertical bridge of bearing level is to the displacement that reaches direction across bridge.
Embodiment 2 provides unidirectional movable ball-type seat structure, and as shown in Figure 3, Figure 4, it mainly is made up of parts such as upper base plate 1, middle seat board 4 and following seat boards 7.The plane stainless steel slide plate 2 that is welded on the upper base plate 1 constitutes the planar slide friction pairs with the plane modified ultra-high molecular weight polyethylene slide plate 3 that is embedded in middle seat board 4 upper surfaces, realizes the horizontal direction displacement of bearing; Seat board 4 is protruding spherical structure in described, described seat board down 7 is the concave spherical surface structure that matches with middle seat board 4 protruding spheres, be coated on sphere stainless steel slide plate 5 and the sphere modified ultra-high molecular weight polyethylene slide plate 6 formation sphere sliding friction pairs that are embedded in down on seat board 7 concave spherical surfaces on the seat board 4, realize the rotation displacement of bearing jointly with the planar slide friction pair.Upper base plate 1 two ends have the step that stretches out downwards, be provided with the guiding friction pair that constitutes by guiding modified ultra-high molecular weight polyethylene slide plate 14 and guiding stainless steel slide plate 15 in the gap between upper base plate 1 and following seat board 7, wherein, described guiding stainless steel slide plate and upper base plate are connected as a single entity, described guiding modified ultra-high molecular weight polyethylene slide plate is embedded in down on the seat board, realizes that bearing can also be free to slide along the unconfinement direction when bearing the horizontal loading of constraint direction.Pre-embedded steel slab 8 can make bearing upper base plate 1 and beam base concrete separate at the bottom of the beam, is convenient to carry out in the future the height of support adjustment.Upper base plate 1 is anchored in Liang Tishang by pre-buried sleeve 9 of beam portion and beam portion connecting bolt 10; Seat board 7 is anchored on the buttress by stone bolt 11, sleeve 12 and anchorage screw 13 under the bearing.During bearing replacement,, make the bearing unloading, beam portion connecting bolt 10 and stone bolt 11 are unscrewed removal, bearing can be taken out and change beam body jack-up slightly.
The hermetically-sealed construction of present embodiment is referring to Fig. 7; plane modified ultra-high molecular weight polyethylene joint ring 16 is embedded in the groove on plane on the middle seat board 4; sphere modified ultra-high molecular weight polyethylene joint ring 17 is embedded in down in the groove on seat board 7 concave spherical surfaces; ring encloses planar friction pair, sphere friction pair respectively, for planar friction pair, sphere friction pair provide seal protection.
The spherical bearing of present embodiment can be realized the horizontal movement of the spacing of constraint direction and unconfinement direction.
Embodiment 3 provides fixedly spherical bearing structure, and as Fig. 5, shown in Figure 6, it mainly is made up of parts such as upper base plate 1, middle seat board 4 and following seat boards 7.The spacing basin ring of upper base plate 1 bottom cooperates with the external cylindrical surface boss of following seat board 7, the displacement of restriction bearing on any horizontal direction; The plane stainless steel slide plate 2 that is welded on the upper base plate 1 constitutes the planar slide friction pairs with the plane modified ultra-high molecular weight polyethylene slide plate 3 that is embedded in middle seat board 4 upper surfaces, seat board 4 is protruding spherical structure in described, described seat board down 7 is the concave spherical surface structure that matches with middle seat board 4 protruding spheres, the sphere stainless steel slide plate 5 that is coated on the seat board 4 constitutes the sphere sliding friction pair with the sphere modified ultra-high molecular weight polyethylene slide plate 6 that is embedded on lower shoe 7 concave spherical surfaces, and both realize the rotation displacement of bearing jointly.Pre-embedded steel slab 8 can make bearing upper base plate 1 and beam base concrete separate at the bottom of the beam, is convenient to carry out in the future the height of support adjustment.Upper base plate 1 is anchored in Liang Tishang by pre-buried sleeve 9 of beam portion and beam portion connecting bolt 10; Seat board 7 is anchored on the buttress by stone bolt 11, sleeve 12 and anchorage screw 13 under the bearing.During bearing replacement,, make the bearing unloading, beam portion connecting bolt 10 and stone bolt 11 are unscrewed removal, bearing can be taken out and change beam body jack-up slightly.
The hermetically-sealed construction of present embodiment is referring to Fig. 7; plane modified ultra-high molecular weight polyethylene joint ring 16 is embedded in the groove on plane on the middle seat board 4; sphere modified ultra-high molecular weight polyethylene joint ring 17 is embedded in down in the groove on seat board 7 concave spherical surfaces; ring encloses planar friction pair, sphere friction pair respectively, for planar friction pair, sphere friction pair provide seal protection.
The spherical bearing of present embodiment can realize that the constraint of any horizontal direction of bearing is spacing.

Claims (7)

1. Simple Supported Railway Bridges spherical bearing, mainly comprise upper base plate (1), middle seat board (4) and following seat board (7), it is characterized in that: the stainless steel slide plate (2) that is provided with on described upper base plate (1) base plane constitutes the planar slide friction pair with the plane modified ultra-high molecular weight polyethylene slide plate (3) that is embedded in middle seat board (4) upper surface; Seat board (4) is protruding spherical structure in described, described seat board (7) down is the concave spherical surface structure that matches with the protruding sphere of middle seat board (4), and sphere stainless steel slide plate (5) that is provided with and the sphere modified ultra-high molecular weight polyethylene slide plate (6) that is embedded in down on seat board (7) concave spherical surface constitute the sphere sliding friction pair on the sphere of described middle seat board (4) bottom; Between upper base plate (1) and middle seat board (4), be provided with plane modified ultra-high molecular weight polyethylene joint ring (16), ring encloses the planar slide friction pair, be provided with sphere modified ultra-high molecular weight polyethylene joint ring (17) between middle seat board (4) and following seat board (7), ring encloses the sphere sliding friction pair.
2. Simple Supported Railway Bridges spherical bearing according to claim 1, it is characterized in that: described upper base plate (1) two ends have downward step, be provided with the guiding friction pair that constitutes by guiding modified ultra-high molecular weight polyethylene slide plate (14) and guiding stainless steel slide plate (15) in the gap between upper base plate (1) and following seat board (7), wherein, described guiding stainless steel slide plate (15) is connected as a single entity with upper base plate, described guiding modified ultra-high molecular weight polyethylene slide plate (14) is embedded in down on the seat board (7), constitutes unidirectional movable ball-type holder structure.
3. Simple Supported Railway Bridges spherical bearing according to claim 1 is characterized in that: described upper base plate (1) end has spacing basin ring, and described spacing basin ring cooperates with the external cylindrical surface boss of following seat board (7), constitutes fixedly spherical bearing structure.
4. Simple Supported Railway Bridges spherical bearing according to claim 1, it is characterized in that: described upper base plate (1) is connected with the pre-buried steel part of beam portion (8) by the pre-buried sleeve of beam portion (9), beam portion connecting bolt (10), and upper base plate (1) is anchored in Liang Tishang.
5. Simple Supported Railway Bridges spherical bearing according to claim 1 is characterized in that: described seat board (7) down is anchored on the buttress by stone bolt (11), sleeve (12) and anchorage screw (13).
6. Simple Supported Railway Bridges spherical bearing according to claim 1 is characterized in that: the plane modified ultra-high molecular weight polyethylene joint ring (16) that is provided with between described upper base plate (1) and the middle seat board (4) is embedded in middle seat board (4) and goes up in the groove on plane.
7. Simple Supported Railway Bridges spherical bearing according to claim 1 is characterized in that: in described between seat board (4) and the following seat board (7) the sphere modified ultra-high molecular weight polyethylene joint ring (17) of setting be embedded in down in the groove on seat board (7) concave spherical surface.
CN 200920091619 2009-07-09 2009-07-09 Spherical support for railway simply-supported bridge Expired - Lifetime CN201517196U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104032834A (en) * 2014-06-05 2014-09-10 南京工业大学 Friction pendulum support with annular steel plate
CN105666980A (en) * 2016-02-01 2016-06-15 西申（上海）新材料科技有限公司 Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge
CN107254836A (en) * 2017-08-08 2017-10-17 安徽尚德科技有限公司 A kind of backing plate height-adjustable supports and construction method
CN107881904A (en) * 2017-11-17 2018-04-06 衡水中铁建工程橡胶有限责任公司 A kind of novel bridge bearing
CN109235249A (en) * 2018-11-14 2019-01-18 中铁二院工程集团有限责任公司 A kind of spherical steel support with dissipative member
CN109356022A (en) * 2018-10-29 2019-02-19 株洲时代新材料科技股份有限公司 A kind of spherical bearing
CN110409293A (en) * 2019-07-16 2019-11-05 上海兰德公路工程咨询设计有限公司 A new type of high load bearing spherical bridge bearing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104032834A (en) * 2014-06-05 2014-09-10 南京工业大学 Friction pendulum support with annular steel plate
CN105666980A (en) * 2016-02-01 2016-06-15 西申（上海）新材料科技有限公司 Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge
CN105666980B (en) * 2016-02-01 2018-03-30 西申（上海）新材料科技有限公司 Railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process and its structure
CN107254836A (en) * 2017-08-08 2017-10-17 安徽尚德科技有限公司 A kind of backing plate height-adjustable supports and construction method
CN107881904A (en) * 2017-11-17 2018-04-06 衡水中铁建工程橡胶有限责任公司 A kind of novel bridge bearing
CN109356022A (en) * 2018-10-29 2019-02-19 株洲时代新材料科技股份有限公司 A kind of spherical bearing
CN109235249A (en) * 2018-11-14 2019-01-18 中铁二院工程集团有限责任公司 A kind of spherical steel support with dissipative member
CN109235249B (en) * 2018-11-14 2024-03-08 中铁二院工程集团有限责任公司 Spherical steel support with energy dissipation members
CN110409293A (en) * 2019-07-16 2019-11-05 上海兰德公路工程咨询设计有限公司 A new type of high load bearing spherical bridge bearing

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