CN114775453A - Novel bridge rotation construction device based on rack and rail traction system - Google Patents
Novel bridge rotation construction device based on rack and rail traction system Download PDFInfo
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- CN114775453A CN114775453A CN202210166745.XA CN202210166745A CN114775453A CN 114775453 A CN114775453 A CN 114775453A CN 202210166745 A CN202210166745 A CN 202210166745A CN 114775453 A CN114775453 A CN 114775453A
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- 238000010276 construction Methods 0.000 title claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 235000014121 butter Nutrition 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000010721 machine oil Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000009466 transformation Effects 0.000 abstract 1
- 210000002414 leg Anatomy 0.000 description 7
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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Abstract
The invention discloses a novel bridge rotation construction device based on a rack and rail traction system. The invention is suitable for bridge rotation construction under various conditions, the rotation speed can be accurately controlled through the fixed rotation angle of a single gear after transformation, the construction precision is improved, and meanwhile, the construction safety is also ensured. Besides the advantages, the device also overcomes the short plate with one-way traction, if the rotation angle is over limit, the gear applies force in the opposite direction, and the maneuverability in the construction process is optimized.
Description
Technical Field
The invention relates to the technical field of bridge rotation construction, in particular to a novel bridge rotation construction device based on a rack-and-track traction system. Particularly, a rotary construction device with a traction cableway at the outer edge of a rotary disc and a traction cable in a gear shape is designed, and the device can be suitable for rotary construction of various bridges.
Background
With the gradual formation of railway and road networks in China, bridge construction projects crossing existing lines are more and more. Under the condition of not influencing the operation of roads and railways, the key research objects of the bridge engineering are ensured to be safely and reliably carried out in the engineering construction, so that the key technical research on the design and construction of the bridge spanning the existing roads is an important content of the current bridge construction technical research. In the construction method for crossing the existing line bridge, the turning construction method comprises the following steps: 1, the construction needs fewer machines and tools, the process is simple, and the operation is safe; 2 has reasonable structure, clear stress and good mechanical property; 3, the swivel method can better overcome the difficulty of erecting structures in high mountains and canyons, water depth torrential flows or large-span river channels, and particularly has more obvious advantages for constructing urban overpasses and railway overpasses with busy traffic and transportation; 4 the construction speed is fast, the cost is low, the investment is saved, and the like, and the construction method is widely applied to construction.
The core of the swivel construction method is the rotation equipment and the rotation capability, and the key technical problems of the construction technology are that the stability of the structure is ensured and the smooth conversion of the system is ensured in the swivel construction process. In order to ensure smooth and stable rotation of the rotating system, a light bridge with high rigidity and light weight is selected in the aspect of construction, and the design and construction of the rotating system are very critical links. The ideal rotating system has the characteristics of flexible rotation, safety and stability. Most of the existing bridge rotation construction devices have the characteristics of flexible rotation, safety and stability, but the controllability in the construction process is not high. In the rotating process, because the rotating force of the engine cannot be adjusted in real time, the upper structure is difficult to rotate at a constant speed, and the construction safety and controllability are influenced. Therefore, it is very important to control the rotation speed and the rotation angle during the swivel construction.
Similarly, the existing bridge rotation construction device is limited by unidirectional traction, and if the rotation angle is out of limit, the difficulty in how to restore the rotation system to the correct angle is also often encountered in construction.
Disclosure of Invention
An important object of the present invention is to provide a swivel construction apparatus which is convenient for controlling a rotation speed and a rotation angle in order to solve a control problem in a swivel construction of a bridge. The traction cableway and the traction cable are improved into gears, so that the problem of one-way traction can be quickly and accurately solved. The gear system is additionally arranged on the rotating device, so that the function of easy control and adjustment is realized in the rotating construction process, the construction process is optimized, and the maneuverability in the construction process is improved.
In order to achieve the above purpose, the specific technical scheme of the invention is as follows:
a bridge turning construction device based on a rack-and-track traction system comprises a turning bridge, a spherical hinge and a lower bearing platform, the spherical hinge comprises an upper spherical hinge, a lower spherical hinge and a pin shaft, the lower spherical hinge is arranged on the upper surface of the lower bearing platform, a rotary table connected with the upper spherical hinge is arranged below the swivel bridge, the rotary table and the spherical hinge are coaxially arranged, a traction cableway consisting of a plurality of meshing teeth is arranged on the outer edge of the turntable, traction cables for driving the traction cableway to rotate are symmetrically connected to the two sides of the traction cableway, the traction cable is a rack structure with a plurality of sawteeth, the traction cables on two sides of the turntable are connected with a driving mechanism to drive the traction cables on two sides to move towards opposite directions, and the rotating disc rotates towards the target direction through a gear rack transmission system formed by the traction cable and the traction cableway, so that the rotation of the rotating bridge is realized.
Further, the number of the meshing teeth on the traction cableway is 60-90.
Further, the number of the meshing teeth is 75, and the height of the meshing teeth is 0.5 m.
Furthermore, the outer edge of the lower bearing platform is provided with a slideway, and the slideway and the turntable are coaxially arranged.
Furthermore, two groups of supporting legs are mounted in the slide way, the supporting legs are symmetrically arranged about the axis of the rotary table, and the top ends of the supporting legs are fixedly connected with the lower surface of the rotary table.
Furthermore, the central axis of the pin shaft is coincident with the central axes of the upper spherical hinge and the lower spherical hinge.
Furthermore, the lower surface of the upper spherical hinge is a convex spherical surface, the upper surface of the lower spherical hinge is a concave spherical surface, and the convex spherical surface and the concave spherical surface are mutually matched to form the spherical hinge capable of horizontally rotating relatively.
Further, an upper bearing platform is further arranged between the lower surface of the swivel bridge and the rotary table, the upper bearing platform is circular, and the lower bearing platform is hexagonal.
Furthermore, the upper spherical hinge and the lower spherical hinge are both made of steel; the turntable is of a reinforced concrete structure.
Further, machine oil or butter is smeared on the lower surface of the upper spherical hinge, the upper surface of the lower spherical hinge and the surface of the pin shaft for protection, and sand blasting and anticorrosive coating are carried out on the other surfaces.
Compared with the prior art, the invention has the beneficial effects that:
the bridge swivel construction device of the invention is added with the gear rack transmission system, on the premise of not changing the swivel construction technical principle and the construction method,
1) through reequiping traction cableway and traction cable for the gear of interlock each other for can come accurate control speed of turning and angle of turning through the fixed turned angle of single gear in the construction, not only improve the precision of construction, also ensure construction safety.
2) Through reequiping traction cableway and traction cable for the gear of mutual interlock, overcome the one-way short slab that pulls in the bridge rotation construction, if the rotation angle transfinites in the work progress, only need make gear system opposite direction rotation can, improved the mobility in the work progress.
Drawings
Fig. 1 is a schematic structural view of a beam swivel construction apparatus according to the present invention;
fig. 2 is a schematic plan view illustrating the construction device for a beam swivel according to the present invention.
Reference numerals are as follows: 1-upper spherical hinge, 2-lower spherical hinge, 3-pin shaft, 4-rotary table, 5-traction cableway, 6-traction cable, 7-meshing tooth, 8-upper bearing platform, 9-lower bearing platform, 10-supporting foot, 11-slideway, 12-swivel bridge and 13-driving mechanism.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1-2, a bridge swivel construction device based on a rack-and-track traction system includes a swivel bridge 12, a spherical hinge and a lower bearing platform 9, the spherical hinge includes an upper spherical hinge 1, a lower spherical hinge 2 and a pin shaft 3, the lower spherical hinge 2 is installed on the upper surface of the lower bearing platform 9, and the bridge swivel construction device is characterized in that: the lower portion of the swivel bridge 12 is provided with a rotary disc 4 connected with the upper spherical hinge 1, the rotary disc 4 and the spherical hinge are coaxially arranged, a traction cableway 5 formed by a plurality of meshing teeth 7 is arranged on the outer edge of the rotary disc 4, two sides of the traction cableway 5 are symmetrically connected with traction cables 6 driving the traction cableway to rotate, the traction cables 6 are of a rack structure containing a plurality of saw teeth, the traction cables 6 on two sides of the rotary disc 4 are connected with a driving mechanism 13, an engine drives the traction cables 6 on two sides to move towards opposite directions, and the traction cables 6 enable the rotary disc 4 to rotate towards a target direction through a gear-rack transmission system formed by the traction cableway 5 fixed on the rotary disc 4, so that the rotation of the swivel bridge is realized.
1) Through reequiping traction cableway and traction cable for the gear of interlock each other for can come accurate control speed of turning and angle of turning through the fixed turned angle of single gear in the construction, not only improve the precision of construction, also ensure construction safety.
2) Through reequiping traction cableway 5 and traction cable 6 for the gear of mutual interlock, overcome the one-way tractive short slab in the bridge rotation construction, if the rotation angle transfinites in the work progress, only need make gear system reverse direction rotate can, improved the mobility in the work progress.
In the technical scheme of the invention:
the number of the meshing teeth 7 on the traction cableway 5 is 60-90.
In the specific embodiment, the number of the meshing teeth 7 is 75, and the tooth height is 0.5 m. Specifically, the rotating angle after rotating is 4.8 degrees, the arc length of a corresponding 5-traction cableway is 0.7m, and the rotating arc length of an 8-upper bearing platform is 0.75 m.
As shown in fig. 1, in the present embodiment:
the outer edge of the lower bearing platform 9 is provided with a slideway 11, and the slideway 11 and the turntable 4 are coaxially arranged.
Two groups of supporting legs 10 are installed in the slide 11, the supporting legs 10 are symmetrically arranged about the axis of the turntable 4, and the top ends of the supporting legs 10 are fixedly connected with the lower surface of the turntable 4.
Through set up two sets of supporting legss 10 in carousel 4 bottom, form three point support with the ball pivot together, increase the stability of turning the structure.
As shown in fig. 1, in the present embodiment:
the central axis of the pin shaft 3 is superposed with the central axes of the upper spherical hinge 1 and the lower spherical hinge 2.
The lower surface of the upper spherical hinge 1 is a convex spherical surface, the upper surface of the lower spherical hinge 2 is a concave spherical surface, and the convex spherical surface and the concave spherical surface are mutually matched to form a spherical hinge capable of horizontally rotating relatively.
The central axis of the pin shaft 3 is superposed with the central axes of the upper spherical hinge 1 and the lower spherical hinge 2, so that the occurrence of relative displacement in the horizontal rotation process of the bridge is prevented, and the stability of the bridge in the rotation process is improved.
As shown in fig. 1, an upper bearing platform 8 is further disposed between the lower surface of the swivel bridge 12 and the turntable 4, the upper bearing platform 8 is circular, and the lower bearing platform 9 is hexagonal.
In the technical scheme of the invention, the upper spherical hinge 1 and the lower spherical hinge 2 are both made of steel; the turntable 4 is of a reinforced concrete structure. The upper spherical hinge 1 and the lower spherical hinge 2 are both rigid spherical hinges with good rigidity and large bearing capacity.
According to the technical scheme, engine oil or butter is coated on the lower surface of the upper spherical hinge 1, the upper surface of the lower spherical hinge 2 and the surface of the pin shaft 3 for protection, and sand blasting and anticorrosive coating are performed on the other surfaces.
Although particular embodiments of the invention have been disclosed, the patented innovation is not limited to the embodiments described, but is fully applicable to many areas of patentable use, as equivalent alterations and substitutions are possible, without departing from the scope of the claims. The invention is not limited to the specific illustrations and details described herein.
Claims (10)
1. The utility model provides a bridge construction equipment that turns based on rack and rail traction system, includes bridge (12), ball pivot and lower cushion cap (9) of turning, the ball pivot includes ball pivot (1), lower ball pivot (2) and round pin axle (3), lower ball pivot (2) install in the upper surface of lower cushion cap (9), its characterized in that: the rotary body bridge is characterized in that a rotary disc (4) connected with an upper spherical hinge (1) is arranged below the rotary body bridge (12), the rotary disc (4) and the spherical hinge are coaxially arranged, a traction cableway (5) formed by a plurality of meshing teeth (7) is arranged on the outer edge of the rotary disc (4), two sides of the traction cableway (5) are symmetrically connected with traction cables (6) driving the traction cableway to rotate, the traction cables (6) are of a rack structure comprising a plurality of saw teeth, the traction cables (6) on two sides of the rotary disc (4) are connected with a driving mechanism (13) and drive the traction cables (6) on two sides to move towards opposite directions, and the rotary disc (4) is driven to rotate towards a target direction through a gear-rack transmission system formed by the traction cables (6) and the traction cableway (5), so that the rotary body bridge can rotate.
2. The bridge swivel construction device based on the rack-and-track traction system according to claim 1, characterized in that: the number of the meshing teeth (7) on the traction cableway (5) is 60-90.
3. The bridge swivel construction device based on the rack-and-track traction system according to claim 2, characterized in that: the number of the meshing teeth (7) is 75, and the tooth height is 0.5 m.
4. The bridge swivel construction device based on the rack-and-track traction system according to claim 1, characterized in that: the outer edge of the lower bearing platform (9) is provided with a slideway (11), and the slideway (11) and the turntable (4) are coaxially arranged.
5. The bridge swivel construction device based on the rack-and-track traction system according to claim 4, characterized in that: two groups of supporting legs (10) are installed in the slide ways (11), the supporting legs (10) are symmetrically arranged about the axis of the turntable (4), and the top ends of the supporting legs (10) are fixedly connected with the lower surface of the turntable (4).
6. The bridge swivel construction device based on the rack-and-track traction system according to claim 1, characterized in that: the central axis of the pin shaft (3) is superposed with the central axes of the upper spherical hinge (1) and the lower spherical hinge (2).
7. The bridge swivel construction device based on the rack-and-track traction system according to claim 6, characterized in that: the lower surface of the upper spherical hinge (1) is a convex spherical surface, the upper surface of the lower spherical hinge (2) is a concave spherical surface, and the convex spherical surface and the concave spherical surface are matched with each other to form a spherical hinge capable of rotating horizontally relatively.
8. The bridge swivel construction device based on the rack-and-track traction system according to claim 1, characterized in that: an upper bearing platform (8) is further arranged between the lower surface of the swivel bridge (12) and the rotary table (4), the upper bearing platform (8) is circular, and the lower bearing platform (9) is hexagonal.
9. The bridge swivel construction device based on the rack-and-track traction system according to claim 1, characterized in that: the upper spherical hinge (1) and the lower spherical hinge (2) are both made of steel; the turntable (4) is of a reinforced concrete structure.
10. The bridge swivel construction device based on the rack-and-track traction system according to claim 1, characterized in that: and (3) coating machine oil or butter on the lower surface of the upper spherical hinge (1), the upper surface of the lower spherical hinge (2) and the surface of the pin shaft (3) for protection, and performing sand blasting and anticorrosive coating on the other surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210166745.XA CN114775453A (en) | 2022-02-23 | 2022-02-23 | Novel bridge rotation construction device based on rack and rail traction system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210166745.XA CN114775453A (en) | 2022-02-23 | 2022-02-23 | Novel bridge rotation construction device based on rack and rail traction system |
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| CN114775453A true CN114775453A (en) | 2022-07-22 |
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| CN202210166745.XA Pending CN114775453A (en) | 2022-02-23 | 2022-02-23 | Novel bridge rotation construction device based on rack and rail traction system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204238128U (en) * | 2014-10-24 | 2015-04-01 | 中铁大桥局集团第六工程有限公司 | A kind of horizontal swing system for bridge construction |
| CN205443966U (en) * | 2016-03-23 | 2016-08-10 | 上海同济城市规划设计研究院 | Bridge structure of turning |
| CN208105076U (en) * | 2018-04-19 | 2018-11-16 | 中铁七局集团第四工程有限公司 | Bridge rotating structure |
| CN110468736A (en) * | 2019-08-14 | 2019-11-19 | 中铁武汉勘察设计研究院有限公司 | Bridge rotating method and system based on double-power mechanism |
| CN111172893A (en) * | 2020-01-22 | 2020-05-19 | 中铁大桥科学研究院有限公司 | Swivel bridge drive system |
| CN113279338A (en) * | 2021-06-15 | 2021-08-20 | 北京工业大学 | Reusable chain type turning rotating device and method |
-
2022
- 2022-02-23 CN CN202210166745.XA patent/CN114775453A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204238128U (en) * | 2014-10-24 | 2015-04-01 | 中铁大桥局集团第六工程有限公司 | A kind of horizontal swing system for bridge construction |
| CN205443966U (en) * | 2016-03-23 | 2016-08-10 | 上海同济城市规划设计研究院 | Bridge structure of turning |
| CN208105076U (en) * | 2018-04-19 | 2018-11-16 | 中铁七局集团第四工程有限公司 | Bridge rotating structure |
| CN110468736A (en) * | 2019-08-14 | 2019-11-19 | 中铁武汉勘察设计研究院有限公司 | Bridge rotating method and system based on double-power mechanism |
| CN111172893A (en) * | 2020-01-22 | 2020-05-19 | 中铁大桥科学研究院有限公司 | Swivel bridge drive system |
| CN113279338A (en) * | 2021-06-15 | 2021-08-20 | 北京工业大学 | Reusable chain type turning rotating device and method |
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Inventor after: Shi Yan Inventor after: Guo Mingxing Inventor after: Wu Yonghuang Inventor after: Liu Baowen Inventor after: Li Lu Inventor after: Liu Yankai Inventor after: Li Peng Inventor after: Cui Bin Inventor after: Wang Song Inventor after: Wu Hongjin Inventor after: Hu Xiaolong Inventor before: Shi Yan Inventor before: Wu Yonghuang Inventor before: Liu Baowen Inventor before: Li Lu Inventor before: Cui Bin Inventor before: Wang Song Inventor before: Wu Hongjin Inventor before: Hu Xiaolong Inventor before: Liu Yankai Inventor before: Guo Mingxing |
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Effective date of registration: 20230331 Address after: 230000 No.96, Wangjiang East Road, Baohe District, Hefei City, Anhui Province Applicant after: Design and Research Institute of China Railway Fourth Bureau Group Co.,Ltd. Applicant after: Anhui shangtie local railway development Co.,Ltd. Address before: 230000 No.96, Wangjiang East Road, Baohe District, Hefei City, Anhui Province Applicant before: Design and Research Institute of China Railway Fourth Bureau Group Co.,Ltd. |