CN105696462A - Slide moving box of bridge expansion and retraction device - Google Patents
Slide moving box of bridge expansion and retraction device Download PDFInfo
- Publication number
- CN105696462A CN105696462A CN201610166850.8A CN201610166850A CN105696462A CN 105696462 A CN105696462 A CN 105696462A CN 201610166850 A CN201610166850 A CN 201610166850A CN 105696462 A CN105696462 A CN 105696462A
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- China
- Prior art keywords
- steel tube
- rectangular steel
- shaped groove
- shaped
- slide block
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- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the technical field of bridge engineering, and discloses a slide moving box of a bridge expansion and retraction device. The slide moving box of the bridge expansion and retraction device is used for solving the problems that the existing slide moving box of an expansion and retraction device is difficult to install, and cannot meet the displacement requirements in three directions. The slide moving box comprises a square steel pipe, wherein a sliding groove is formed in the inner lower end surface of the square steel pipe; a support plate is put in the sliding groove; the support plate and the lower end surface of a support cross beam arranged in the square steel pipe in a sleeving way form a lower spherical surface friction pair; a T-shaped groove is formed in the upper end surface of the square steel pipe; a T-shaped slide block capable of sliding in the T-shaped groove is arranged in the T-shaped groove; the lower end surface of the T-shaped slide block and the upper end surface of the support cross beam arranged in the square steel pipe in a sleeving way form an upper spherical surface friction pair; and an elastic rubber pad is arranged between the T-shaped slide block and the T-shaped groove.
Description
Technical field
The invention belongs to technical field of bridge engineering, be specifically related to the sliding case of a kind of bridge extension joint。
Background technology
Along with the fast development of highway transportation, traffic volume of highway and carload lot are also increasing, the properties of Expansion Units for Highway Bridges is had higher requirement by this。Car load, as the important load-bearing of modular expansion device, displacement component, will be quickly delivered in bridge structure the sliding parts going to and protecting inside, its service life being reasonably designed to be greatly improved retractor device by sliding case。Currently the majority sliding case is all adopt Plate Welding to form, and the welding deformation in welding process can reduce the dimensional accuracy of box house, affects the assembly precision of flexible member, thus affecting the service life of displacement system；And welding quality not easily ensures, if the concrete placings of box bottom is unreal, the situation that sliding case snaps at weld often occurs under the repeated action of car load, has a strong impact on the service life of retractor device。The seat of spiral shell up and down inside sliding case is used for fixing control spring pressing plate, fixed form is improper, there will be come off, situation of movement, thus affecting the displacement function of retractor device, and in the retractor device at oblique angle, often occur that upper and lower spiral shell seat location is improper and cause control spring pressing plate and central sill to produce situation about interfering。
For the problems referred to above, application number be 201220260055.2 patent of invention disclose a kind of bridge extension joint sliding case, welded square tube including the rectangular shape of both ends open cross section, it is fixed on the pin of welded square tube both sides, support beam, the side bar shaped steel that two are oppositely arranged, it is fixed on the central sill shaped steel supported above beam, the two ends of described support beam are plugged in the endoporus of welded square tube respectively, the edge of a wing of side bar shaped steel it is welded in inside described welded square tube, the lower end of side bar shaped steel is fixed in shear spring upper end, the upper end supporting beam is fixed in shear spring lower end, support spring and be arranged between support beam and welded square tube, some installing holes it are provided with bottom described welded square tube, described support spring is fixed by the securing member through installing hole, the endoporus of described welded square tube is provided with and supports, for limiting, the stopping means that beam moves left and right；Described stopping means is be respectively welded the limiting plate being fixed in two welded square tube, supports beam and is placed between two limiting plates；Also including the baffle plate being fixed in welded square tube end face outside, the overall dimensions of described baffle plate and the cross sectional dimensions of welded square tube match。
Again such as application number be 201410126790.8 patent of invention disclose a kind of bridge extension joint, the bracing displacement case that arranges including two mirror images, two ends be inserted in respectively in two bracing displacement casees support crossbeam, side bar shaped steel that two mirror images are arranged and be fixed on the central sill shaped steel supported on crossbeam, described side bar shaped steel is fixedly installed on upper edge inside bracing displacement case, is provided with waterstop between described side bar shaped steel and central sill shaped steel；Described support crossbeam includes connecting plate and is arranged at the fixing plate at connecting plate two ends, described connecting plate and fixing plate are hinged by rotating shaft, it is provided with support spring between described bracing displacement case and fixing plate upper surface, between described bracing displacement case and fixing plate lower surface, is provided with sliding support；Between described connecting plate and fixing plate, the engagement in thread form, is provided with rubber ring between two engaging tooths；Described waterstop two ends are provided with the connecting portion of column type, and described side bar shaped steel and central sill shaped steel are provided with the groove that the connecting portion with described column type matches, and described connecting portion is inserted in described groove, is provided with ball between connecting portion and groove；Ball is embedded in described connecting portion；Described connecting portion includes outer connecting portion and the integral support portion being plugged in outer connecting portion, and described outer connecting portion cylindrically, is provided with the breach of wedge shape, and described integral support portion is cylindrical, is provided with the wedge shape matched with described wedge-shaped indentation protruding；It is provided with gusset between the upper surface of side bar shaped steel and bracing displacement case；Described bracing displacement case is provided with anchor studs。
Although above-mentioned two technological documents decrease welding job amount, and make integral rigidity higher, eliminate the welding deformation impact on box house dimensional accuracy, it is to avoid the situation that sliding case snaps at weld；But the prior art also exists following problem:
The problem that support spring between rectangular steel tube and support beam not only also exists installation difficulty；Simultaneously in time being subjected to displacement situation, support spring and be susceptible to deformation under car load and support beam action, thus it is ineffective to cause supporting spring, so that retractor device is easily damaged。
Further, existing sliding case can not meet the displacement in X-direction, Y direction and three directions of Z axis, causes that retractor device is easily damaged。
Summary of the invention
The present invention is to solve the installation difficulty that existing sliding case exists, it is impossible to meet the demand of the displacement in three directions, thus causing the problem that retractor device is easily damaged；And the sliding case of a kind of bridge extension joint is provided。
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of sliding case of bridge extension joint, including rectangular steel tube, it is characterised in that the interior lower surface of described rectangular steel tube is provided with sliding tray, being placed with gripper shoe in described sliding tray, described gripper shoe forms lower peripheral surface friction pair with the lower surface supporting crossbeam being set in rectangular steel tube；The interior upper surface of described rectangular steel tube is provided with T-shaped groove, and described T-shaped groove is equipped with the T-shaped slide block that can slide in T-shaped groove, and the lower surface of described T-shaped slide block forms upper sphere friction pair with the upper surface supporting crossbeam being set in rectangular steel tube；It is provided with resilient rubbber cushion between described T-shaped slide block and T-shaped groove。
The end of described T-shaped groove is equipped with the fixing plate for being limited in T-shaped groove by T-shaped slide block, and described fixing plate is through being bolted to the end of rectangular steel tube。
One opening of described rectangular steel tube is provided with back plate。
It is provided with in described rectangular steel tube for limiting the limiting plate supporting crossbeam being set in rectangular steel tube。
The side of described rectangular steel tube is provided with the pin for being fixed on bridge by rectangular steel tube。
Compared with prior art, the method have the advantages that
The present invention is in the process used, and by upper sphere friction pair and lower peripheral surface friction pair, meets the bridge demand when upper and lower displacement or inclination；Simultaneously by the structural design of chute and T-shaped chute, it is possible to meet the displacement of horizontal direction；Damage retractor device when allowing the invention to prevent bridge to be subjected to displacement, improve the service life of retractor device。
Meanwhile, the present invention is by the structural design of upper and lower friction pair, gripper shoe and slide block, it is simple to installs, reduces the difficulty of installation。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the T-shaped groove connection diagram with T-shaped slide block of the present invention；
Labelling in figure: 1, rectangular steel tube, 2, sliding tray, 3, gripper shoe, 4, lower peripheral surface friction pair, 5, support crossbeam, 6, T-shaped slide block, 7, resilient rubbber cushion, 8, upper sphere friction pair, 9, pin, 10, back plate, 11, limiting plate, 12, T-shaped groove。
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only a part of embodiment of the present invention, is not whole embodiments。Based on the embodiment in the present invention, those of ordinary skill in the art obtain under not making creative work premise other used by embodiment, broadly fall into protection scope of the present invention。
In conjunction with accompanying drawing, the sliding case of the bridge extension joint of the present invention, including rectangular steel tube 1, the interior lower surface of described rectangular steel tube 1 is provided with sliding tray 2, being placed with gripper shoe 3 in described sliding tray 2, described gripper shoe 3 forms lower peripheral surface friction pair 4 with the lower surface supporting crossbeam 5 being set in rectangular steel tube 1；The interior upper surface of described rectangular steel tube 1 is provided with T-shaped groove, described T-shaped groove 12 is equipped with the T-shaped slide block 6 that can slide in T-shaped groove 12, and the lower surface of described T-shaped slide block 6 forms upper sphere friction pair 8 with the upper surface supporting crossbeam 5 being set in rectangular steel tube 1；It is provided with resilient rubbber cushion 7 between described T-shaped slide block 6 and T-shaped groove 12。
The present invention is in the process used, and by upper sphere friction pair and lower peripheral surface friction pair, meets the bridge demand when upper and lower displacement or inclination；Simultaneously by the structural design of chute and T-shaped chute, it is possible to meet the displacement of horizontal direction；Damage retractor device when allowing the invention to prevent bridge to be subjected to displacement, improve the service life of retractor device。
Meanwhile, the present invention is by the structural design of upper and lower friction pair, gripper shoe and slide block, it is simple to installs, reduces the difficulty of installation。
As a kind of preferred mode of the present invention, the end of described T-shaped groove 12 is equipped with the fixing plate for being limited in T-shaped groove 12 by T-shaped slide block 6, and described fixing plate is through being bolted to the end of rectangular steel tube 1。By fixing plate, T-shaped slide block is fixed in T-shaped groove 12, improves the practicality of the present invention。
One opening of the rectangular steel tube 1 of the present invention is provided with back plate 10。
It is provided with limiting plate 11 in described rectangular steel tube 1, is supported the displacement of crossbeam 5 by limiting plate 11 restriction, improve the practicality of the present invention。
The arranged outside of the rectangular steel tube 1 of the present invention has the pin 9 for being connected with bridge, fixing with bridge realizing rectangular steel tube 1 by pin 9。
Embodiment one
The sliding case of the bridge extension joint of the present embodiment, including rectangular steel tube, the interior lower surface of described rectangular steel tube is provided with sliding tray, is placed with gripper shoe in described sliding tray, and described gripper shoe forms lower peripheral surface friction pair with the lower surface supporting crossbeam being set in rectangular steel tube；The interior upper surface of described rectangular steel tube is provided with T-shaped groove, and described T-shaped groove is equipped with the T-shaped slide block that can slide in T-shaped groove, and the lower surface of described T-shaped slide block forms upper sphere friction pair with the upper surface supporting crossbeam being set in rectangular steel tube；It is provided with resilient rubbber cushion between described T-shaped slide block and T-shaped groove。
Embodiment two
The sliding case of the bridge extension joint of the present embodiment, including rectangular steel tube, the interior lower surface of described rectangular steel tube is provided with sliding tray, is placed with gripper shoe in described sliding tray, and described gripper shoe forms lower peripheral surface friction pair with the lower surface supporting crossbeam being set in rectangular steel tube；The interior upper surface of described rectangular steel tube is provided with T-shaped groove, and described T-shaped groove is equipped with the T-shaped slide block that can slide in T-shaped groove, and the lower surface of described T-shaped slide block forms upper sphere friction pair with the upper surface supporting crossbeam being set in rectangular steel tube；It is provided with resilient rubbber cushion between described T-shaped slide block and T-shaped groove；The end of described T-shaped groove is equipped with the fixing plate for being limited in T-shaped groove by T-shaped slide block, and described fixing plate is through being bolted to the end of rectangular steel tube。
Embodiment three
On the basis of any of the above-described embodiment, an opening of described rectangular steel tube is provided with back plate。
Embodiment four
On the basis of any of the above-described embodiment, it is provided with in described rectangular steel tube for limiting the limiting plate supporting crossbeam being set in rectangular steel tube。
Embodiment five
On the basis of any of the above-described embodiment, the side of described rectangular steel tube is provided with the pin for being fixed on bridge by rectangular steel tube。
Claims (5)
1. the sliding case of a bridge extension joint, including rectangular steel tube, it is characterised in that the interior lower surface of described rectangular steel tube is provided with sliding tray, being placed with gripper shoe in described sliding tray, described gripper shoe forms lower peripheral surface friction pair with the lower surface supporting crossbeam being set in rectangular steel tube；The interior upper surface of described rectangular steel tube is provided with T-shaped groove, and described T-shaped groove is equipped with the T-shaped slide block that can slide in T-shaped groove, and the lower surface of described T-shaped slide block forms upper sphere friction pair with the upper surface supporting crossbeam being set in rectangular steel tube；It is provided with resilient rubbber cushion between described T-shaped slide block and T-shaped groove。
2. the sliding case of bridge extension joint according to claim 1, it is characterised in that the end of described T-shaped groove is equipped with the fixing plate for being limited in T-shaped groove by T-shaped slide block, and described fixing plate is through being bolted to the end of rectangular steel tube。
3. the sliding case of bridge extension joint according to claim 1 a, it is characterised in that opening of described rectangular steel tube is provided with back plate。
4. the sliding case of bridge extension joint according to claim 1, it is characterised in that be provided with in described rectangular steel tube for limiting the limiting plate supporting crossbeam being set in rectangular steel tube。
5. the sliding case of bridge extension joint according to claim 1, it is characterised in that the side of described rectangular steel tube is provided with the pin for being fixed on bridge by rectangular steel tube。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610166850.8A CN105696462A (en) | 2016-03-23 | 2016-03-23 | Slide moving box of bridge expansion and retraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610166850.8A CN105696462A (en) | 2016-03-23 | 2016-03-23 | Slide moving box of bridge expansion and retraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105696462A true CN105696462A (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610166850.8A Pending CN105696462A (en) | 2016-03-23 | 2016-03-23 | Slide moving box of bridge expansion and retraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105696462A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835967A (en) * | 2016-12-29 | 2017-06-13 | 温州市九成建设工程有限公司 | A kind of bridge extension joint |
-
2016
- 2016-03-23 CN CN201610166850.8A patent/CN105696462A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835967A (en) * | 2016-12-29 | 2017-06-13 | 温州市九成建设工程有限公司 | A kind of bridge extension joint |
| CN106835967B (en) * | 2016-12-29 | 2018-08-31 | 温州市九成建设工程有限公司 | A kind of bridge extension joint |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |
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| WD01 | Invention patent application deemed withdrawn after publication |