CN201942995U - Height regulation spherical type support seat for steel box girder - Google Patents
Height regulation spherical type support seat for steel box girder Download PDFInfo
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- CN201942995U CN201942995U CN 201120030546 CN201120030546U CN201942995U CN 201942995 U CN201942995 U CN 201942995U CN 201120030546 CN201120030546 CN 201120030546 CN 201120030546 U CN201120030546 U CN 201120030546U CN 201942995 U CN201942995 U CN 201942995U
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- clapboard
- seat board
- plate
- screw rod
- shaped plate
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Abstract
The utility model relates to a height regulation spherical type support seat for a steel box girder, which belongs to the technical field of bridges and building structures and mainly comprises an upper seat plate (1), a middle seat plate (5) and a lower seat plate (8), wherein a wedge-shaped plate structure consisting of an upper wedge-shaped plate (1), a lower wedge-shaped plate (10) and a helical transmission mechanism used for regulating the height of the spherical type support seat is arranged on the upper seat plate (2), the lower wedge-shaped plate (10) is fixed on the upper seat plate (1), the helical transmission structure is formed by a screw rod (12) and a screw nut (11) which are in screw thread fit, one end of the screw rod (12) is fixed on the lower wedge-shaped plate (10), the other end of the screw rod (12) is fixed on the upper wedge-shaped plate (1), and a structure that the rotating screw rod drives the upper wedge-shaped plate to slide along the lower wedge-shaped plate for regulating the height of the spherical type support seat is formed. The height regulation spherical type support seat realizes the stepless height regulation and the height regulation and the replacement of the support seat in a narrow installation and operation space of the support seat, has the characteristics of good durability, long service life, large rotation angle and consistent rotation performance in each direction and is simple and convenient to install and replace.
Description
Technical field
The utility model belongs to bridge and building structure technology field, relates generally to a kind of steel case beam with heightening spherical bearing.
Background technology
Present domestic bridge with many employings of height-adjustable supports mode backing plate heighten, spiral is heightened and inject polyurethane and heighten; It is comparatively general to adopt the backing plate height-adjustable supports to use at present, and it heightens mode mainly is under the prerequisite of barring traffic, uses the back timber device that back is risen, and adds a backing plate then between beam bottom and bearing, and plate thickness requires processing in advance according to the amount of heightening; Spiral is heightened and is common in particularly magnetic suspension train bridge of track traffic, and there is a screw pair bearing inside, by the mutual motion of screw pair, realizes that the height of bearing is regulated; Though this mode of heightening can realize stepless heightening, because such bearing adopts spiral to heighten, its main load parts are screw pair, and structure is comparatively complicated, and supporting capacity is lower simultaneously; The bearing that adopts injection polyurethane to heighten is generally the pot bearing structure, thereby heighten by in the pelvic cavity of pot bearing, injecting polyurethane realization bearing, this kind heightened mode can realize stepless heightening, it is a kind of comparatively desirable mode of heightening, yet, this kind adopt the mode of injecting polyurethane because heightening mode, injection device is had relatively high expectations, consider simultaneously the residing environment of bridge mostly be have inconvenient traffic and also condition that electric power can't provide under, this kind heightened mode and remained further to be improved in practical operation.
Summary of the invention
The purpose of this utility model is to propose a kind of steel case beam with heightening spherical bearing, make it can realize steplessly heightening with bearing fitting operation space heightening and changing of bearing when narrow and small, and have good endurance, the life-span is long, corner is big and each to the rotating property unanimity, the easy characteristics of changing are installed.
Adopt following technical scheme for finishing foregoing invention task the utility model:
A kind of steel case beam is with heightening spherical bearing, and the described spherical bearing of heightening mainly comprises upper base plate, middle seat board and following seat board; The described plane stainless steel slide plate that is welded on down on the seat board constitutes the planar slide friction pair with the plane modified ultra-high molecular weight polyethylene slide plate that is embedded in middle seat board soffit; Seat board is protruding spherical structure in described, described upper base plate is the concave spherical surface structure that matches with the protruding sphere of middle seat board, and the sphere stainless steel slide plate in described being coated on the seat board becomes the sphere sliding friction pair with the sphere modified ultra-high molecular weight polyethylene shaped as slide on being embedded in the upper base plate concave spherical surface; Between upper base plate and the middle seat board, be respectively arranged with the modified ultra-high molecular weight polyethylene joint ring between middle seat board and the following seat board, described modified ultra-high molecular weight polyethylene joint ring encircles respectively and encloses planar slide friction pair and sphere sliding friction pair; Described upper base plate is provided with the clapboard structure that is used to regulate the spherical bearing height; Described clapboard structure comprises clapboard, following clapboard and is used to regulate the screw-drive mechanism of spherical bearing height; The described shape that goes up clapboard and following clapboard is kissed mutually and is joined; Described clapboard down is fixed on the upper base plate, and described screw-drive mechanism is made of screw rod and the nut by threaded engagement; One end of described screw rod is fixed on down on the clapboard, and the other end is fixed on the clapboard, and constitute the described screw rod of rotation and drive upward clapboard edge clapboard slip down, thus the structure of regulating the spherical bearing height.
A kind of steel case beam that the utility model proposes adopts technique scheme with heightening spherical bearing, has following beneficial effect:
(1) utilizes two-way reverse acting spiral transmission principle to realize the height adjusting of bearing, thereby realize the easy to install and replace of bearing; Adopt this scheme can make height of support carry out stepless adjustment within the specific limits, the size of height of support adjustment amount can design by the gradient of clapboard, after the height of support adjustment is finished, this device can be removed, do not influence the normal function of use of bearing, simple for structure, easy to operate;
(2) adopt the higher modified ultra-high molecular weight polyethylene of supporting capacity to replace the sliding material of common polytetrafluoroethylene (PTFE), and, can dwindle the seat structure size by whole plate mosaic structure as friction pair; Simultaneously, it is little that the wear rate of modified ultra-high molecular weight polyethylene under higher sliding velocity compared polytetrafluoroethylene (PTFE), is more suitable for when highway steel box-beam structure sliding velocity is very fast the bearing requirement in application life;
(3) plane and sphere friction pair have all adopted the modified ultra-high molecular weight polyethylene joint ring to seal, and sealing effectiveness is better, guarantee that simultaneously material is identical with friction pair application life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sealed structural representation of bearing.
Fig. 3 is the working state figure before height of support of the present utility model is adjusted.
Fig. 4 is the adjusted working state figure of height of support of the present utility model.
Among the figure: 1, go up clapboard, 2, upper base plate, 3, sphere modified ultra-high molecular weight polyethylene slide plate, 4, sphere stainless steel slide plate, 5, middle seat board, 6, plane modified ultra-high molecular weight polyethylene slide plate, 7, the plane stainless steel slide plate, 8, following seat board, 9, modified ultra-high molecular weight polyethylene joint ring, 10, following clapboard, 11, nut, 12, screw rod, 13,14, otic placode, 15, bearing.
The specific embodiment
With specific embodiment the utility model is illustrated in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of steel case beam is with heightening spherical bearing, and the described spherical bearing of heightening mainly comprises upper base plate 2, middle seat board 5 and following seat board 8; The described plane stainless steel slide plate 7 that is welded on down on the seat board 8 constitutes the planar slide friction pairs with the plane modified ultra-high molecular weight polyethylene slide plate 6 that is embedded in middle seat board 2 soffits, realizes the horizontal direction displacement of bearing; Seat board 5 is protruding spherical structure in described, described upper base plate 2 is the concave spherical surface structure that matches with the protruding sphere of middle seat board, sphere stainless steel slide plate 4 in described being coated on the seat board 5 forms the sphere sliding friction pairs with the sphere modified ultra-high molecular weight polyethylene slide plate 3 that is embedded on the upper base plate concave spherical surface, realizes the rotation displacement of bearing jointly with the planar slide friction pair; As shown in Figure 2, between upper base plate 2 and the middle seat board 5, be respectively arranged with modified ultra-high molecular weight polyethylene joint ring 9 between middle seat board 5 and the following seat board 8, described modified ultra-high molecular weight polyethylene joint ring 9 is embedded in respectively in the groove and the groove on upper base plate 2 concave spherical surfaces on plane on the middle seat board 5, and ring encloses planar slide friction pair and sphere sliding friction pair respectively, is respectively planar friction pair and sphere friction pair seal protection is provided; Described upper base plate 2 is provided with the clapboard structure that is used to regulate the spherical bearing height; Described clapboard structure comprises clapboard 1, following clapboard 10 and is used to regulate the screw-drive mechanism of spherical bearing height; The described shape that goes up clapboard 1 and following clapboard 10 is kissed mutually and is joined; Described clapboard 10 down is fixed on the upper base plate 2, and described screw-drive mechanism is made of screw rod 12 and the nut 11 by threaded engagement; One end of described screw rod 12 is fixed on down on the clapboard 10 by otic placode 14, the other end is fixed on the clapboard 1 by otic placode 13, constitute the described screw rod of rotation and drive upward clapboard edge clapboard slip down, thereby regulate the structure of spherical bearing height, the size of height of support adjustment amount can design by the gradient of clapboard, after the height of support adjustment was finished, this device can be removed, and did not influence the normal function of use of bearing.
1), bearing is adjusted screw rod 12 connect with bearing 15 as shown in Figure 3, Figure 4, step is installed and heightened to bearing:, and be pushed into case beam respective anchors keyhole correspondence position with bearing 15; 2), rotating screw bolt 12, promote clapboard height of support raise, until closely contacting with the beam body, with bearing location and locking, the bearing of screwing on is connected crab-bolt with the beam body then; 3) lay down bearing and adjust screw rod 12, finish installation.
The bearing replacement step: 1), will prop up seat adjusting mechanism and bearing 15 connects, rotating screw bolt 12, the pulling clapboard turns down height of support to the bearing complete discharge; 2), remove to connect bearing crab-bolt up and down, bearing is shifted out little case beam, and the order of installing according to bearing is in place new bearing; 3), lay down bearing and adjust screw rod, finish bearing replacement.
Claims (1)
1. a steel case beam is with heightening spherical bearing, and the described spherical bearing of heightening mainly comprises upper base plate (2), middle seat board (5) and following seat board (8); The described plane stainless steel slide plate (7) that is welded on down on the seat board (8) constitutes the planar slide friction pair with the plane modified ultra-high molecular weight polyethylene slide plate (6) that is embedded in middle seat board (5) soffit; Seat board (5) is protruding spherical structure in described, described upper base plate (2) is the concave spherical surface structure that matches with the protruding sphere of middle seat board, and the sphere stainless steel slide plate (4) in described being coated on the seat board forms the sphere sliding friction pair with the sphere modified ultra-high molecular weight polyethylene slide plate (3) that is embedded on the upper base plate concave spherical surface; Between upper base plate (2) and the middle seat board (5), be respectively arranged with modified ultra-high molecular weight polyethylene joint ring (9) between middle seat board (5) and the following seat board (8), described modified ultra-high molecular weight polyethylene joint ring (9) encircles respectively and encloses planar slide friction pair and sphere sliding friction pair; It is characterized in that: described upper base plate (2) is provided with the clapboard structure that is used to regulate the spherical bearing height; Described clapboard structure comprises clapboard (1), following clapboard (10) and is used to regulate the screw-drive mechanism of spherical bearing height; The described shape that goes up clapboard (1) and following clapboard (10) is kissed mutually and is joined; Described clapboard (10) down is fixed on the upper base plate (2), and described screw-drive mechanism is made of screw rod (12) and the nut (11) by threaded engagement; One end of described screw rod (12) is fixed on down on the clapboard (10), and the other end is fixed on the clapboard (1), and constitute the described screw rod of rotation and drive upward clapboard edge clapboard slip down, thus the structure of regulating the spherical bearing height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120030546 CN201942995U (en) | 2011-01-28 | 2011-01-28 | Height regulation spherical type support seat for steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120030546 CN201942995U (en) | 2011-01-28 | 2011-01-28 | Height regulation spherical type support seat for steel box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201942995U true CN201942995U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120030546 Expired - Lifetime CN201942995U (en) | 2011-01-28 | 2011-01-28 | Height regulation spherical type support seat for steel box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201942995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767134A (en) * | 2012-07-24 | 2012-11-07 | 成都市新筑路桥机械股份有限公司 | Large-angle assembly support |
| CN103215890A (en) * | 2013-04-01 | 2013-07-24 | 柳州东方工程橡胶制品有限公司 | Novel seismic mitigation and absorption support and changing method thereof |
-
2011
- 2011-01-28 CN CN 201120030546 patent/CN201942995U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767134A (en) * | 2012-07-24 | 2012-11-07 | 成都市新筑路桥机械股份有限公司 | Large-angle assembly support |
| CN103215890A (en) * | 2013-04-01 | 2013-07-24 | 柳州东方工程橡胶制品有限公司 | Novel seismic mitigation and absorption support and changing method thereof |
| CN103215890B (en) * | 2013-04-01 | 2015-08-26 | 柳州东方工程橡胶制品有限公司 | A kind of New Isolation Bearing and replacing options thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |