CN105887697B - A kind of Bridge Erector flexible leg twisted seat temporary fastening device - Google Patents
A kind of Bridge Erector flexible leg twisted seat temporary fastening device Download PDFInfo
- Publication number
- CN105887697B CN105887697B CN201610420342.8A CN201610420342A CN105887697B CN 105887697 B CN105887697 B CN 105887697B CN 201610420342 A CN201610420342 A CN 201610420342A CN 105887697 B CN105887697 B CN 105887697B
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- CN
- China
- Prior art keywords
- adjusting nut
- nose girder
- fixing seat
- support rod
- screw rod
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of Bridge Erector flexible leg twisted seat temporary fastening devices, Bridge Erector nose girder is flexibly connected by free bearing connected to it and pin and nose girder front leg strut, temporary fastening device includes fixing seat, screw rod, adjusting nut and support rod, fixing seat is fixedly connected with nose girder front leg strut, screw rod is fixed with fixing seat, the lower end of support rod connect by adjusting nut with screw rod, and the lower section of free bearing is arranged in the upper end of support rod.The present invention becomes in bridge machine across twisted seat fixed when converting leg location in the process, realizes the transformation of nose girder front leg strut rigidity and flexibility, solve the problems, such as dismantling with it is difficult to install；The security risk for having evaded manual labor in high altitude operation eliminates the high-risk process of artificial fixed twisted seat；Workload is greatly reduced, cost payout is reduced, improves operating efficiency, guarantees to become the security and stability across construction, and the present apparatus is small, structure is simple, and convenient for safeguarding and adjustment reduces manufacture difficulty.
Description
Technical field
The present invention relates to Bridge Erector technical field more particularly to a kind of Bridge Erector flexible leg twisted seat temporary fastening devices.
Background technique
900T is pinpointed in hoisting type Bridge Erector work progress, can encounter become in the construction of many box beam erections across special work
Condition, Bridge Erector, which becomes, at present is realized across construction using transformation nose girder front leg strut and the method for bridge machine front leg strut position.DF900D
Bridge Erector nose girder supporting leg is band twisted seat flexible leg, needs operating personnel in high-altitude by upper twisted seat disassembling bolts when shifting one's position,
The position of twisted seat in adjustment is installed in another span location.Twisted seat from great, it is fixed more troublesome using chain block and
Operating efficiency is influenced, furthermore high aerial impetus is small, and it is complicated for operation and have difficulties, there is very big security risk, and then may
Cause great safety accident.
Summary of the invention
Face the object of the invention is that providing a kind of Bridge Erector flexible leg twisted seat to solve the above-mentioned problems
When fixed device.
The present invention through the following technical solutions to achieve the above objectives:
A kind of Bridge Erector flexible leg twisted seat temporary fastening device, the Bridge Erector nose girder by free bearing connected to it and
Pin and the nose girder front leg strut are flexibly connected, and the temporary fastening device includes fixing seat, screw rod, adjusting nut and support
Bar, the fixing seat are fixedly connected with the upper end of the nose girder front leg strut, and the screw rod is fixed with the fixing seat, the support
The lower end of bar is connect by the adjusting nut with the screw rod, and the lower section of the free bearing is arranged in the upper end of the support rod.
Specifically, the fixing seat is the steel plate for being welded on the nose girder front leg strut, is provided with through-hole in the fixing seat,
The upper end of the screw rod passes through the through-hole and is fixedly connected vertically by fixture nut with the fixing seat.
Specifically, the adjusting nut is Double-ended nut, and the internal screw thread of the first end of the adjusting nut is left hand thread,
The internal screw thread of the second end of the adjusting nut is right-handed thread, and the lower end of the upper end of the screw rod and the support rod is set respectively
It is equipped with external screw thread corresponding with the both ends of the adjusting nut.
Further, its central axes is provided perpendicular in the middle part of the adjusting nut screws stress hole.
Preferably, the support rod is toggle-action lever, and the fixing seat, the screw rod, the adjusting nut and the branch
Strut quantity is two, is symmetrically distributed in the two sides of the nose girder front leg strut along the central axes of the free bearing respectively.
A kind of beneficial effect of Bridge Erector flexible leg twisted seat temporary fastening device of the present invention is:
1) become in bridge machine across twisted seat fixed when converting leg location in the process, realize the change of nose girder front leg strut rigidity and flexibility
Change, solve the problems, such as dismantling with it is difficult to install；
2) security risk for having evaded manual labor in high altitude operation eliminates the high-risk process of artificial fixed twisted seat；
3) workload is greatly reduced, cost payout is reduced, improves operating efficiency, it is steady to guarantee to become the safety across construction
It is qualitative, and the present apparatus is small, structure is simple, and convenient for safeguarding and adjustment reduces manufacture difficulty.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Bridge Erector flexible leg twisted seat temporary fastening device of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figure 1, a kind of Bridge Erector flexible leg twisted seat temporary fastening device of the present invention, Bridge Erector nose girder 9 by with
Its free bearing 8 connected and pin 7 and nose girder front leg strut 6 are flexibly connected, and temporary fastening device includes fixing seat 1, screw rod 2, adjustment
Nut 4 and support rod 5, fixing seat 1 are fixedly connected with nose girder front leg strut 6, and screw rod 2 and fixing seat 1 are fixed, the lower end of support rod 5
It is connect by adjusting nut 4 with screw rod 2, the lower section of free bearing 8 is arranged in the upper end of support rod 5, and fixing seat 1 is before being welded on nose girder
The steel plate of supporting leg 6, is provided with through-hole in fixing seat 1, and the upper end of screw rod 2 passes through through-hole and perpendicular by fixture nut 3 and fixing seat 1
It is directly fixedly connected, adjusting nut 4 is Double-ended nut, and the internal screw thread of the first end of adjusting nut 4 is left hand thread, adjusting nut 4
Second end internal screw thread be right-handed thread, the upper end of screw rod 2 and the lower end of support rod 5 are respectively arranged with and adjusting nut 4
The corresponding external screw thread in both ends, the middle part of adjusting nut 4 are provided perpendicular to the stress hole that screws of its central axes, and support rod 5 is song
Shank, and fixing seat 1, screw rod 2, adjusting nut 4 and 5 quantity of support rod are two, are symmetrically divided along the central axes of free bearing 8 respectively
Cloth is in the two sides of nose girder front leg strut 6.
A kind of working principle of Bridge Erector flexible leg twisted seat temporary fastening device of the present invention is as follows:
By taking 32 meters of DF900D Bridge Erector become across constructing into 24 meters as an example, as shown in Figure 1, Bridge Erector is in 32 meters of span locations
When, when needing to become across being 24 meters, screwing device will be assisted to be inserted into screwing in stress hole in the middle part of adjusting nut 4, then led to
Crossing to pull assists screwing device to rotate adjusting nut 4, because the internal screw thread at screw on nut both ends is oppositely oriented, rotation is adjusted
When whole nut 4, the distance between screw rod 2 and support rod 5 can be made to increase or reduce, by screwing adjusting nut 4, to adjust support
The height of bar 5 makes the upper end of support rod 5 be resisted against the two sides of the downside of free bearing 8, to define that the rotation of pin 7 is free
Degree, realizes being fixed temporarily for free bearing 8, it is made to form rigid structure with nose girder front leg strut 6.
Then the connection bolt between free bearing 8 and Bridge Erector nose girder 9, mobile above-mentioned rigid structure to 24 meters of spans are disassembled
Position, connect and fasten the bolt between free bearing 8 and Bridge Erector nose girder 9, then again rotate adjusting nut 4, make support rod 5
Decline, is arranged certain gap, to restore the flexible structure of nose girder front leg strut 6, Bridge Erector is normally set a roof beam in place between free bearing 8.
To realize substantially reduce workload in entire leg location conversion process, increase become across security and stability.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (3)
1. a kind of Bridge Erector flexible leg twisted seat temporary fastening device, Bridge Erector nose girder by free bearing connected to it and pin with
The flexible connection of nose girder front leg strut, it is characterised in that: including fixing seat, screw rod, adjusting nut and support rod, the fixing seat and institute
The upper end for stating nose girder front leg strut is fixedly connected, and the screw rod is fixed with the fixing seat, and the lower end of the support rod passes through described
Adjusting nut is connect with the screw rod, and the lower section of the free bearing is arranged in the upper end of the support rod, and the adjusting nut is double
The internal screw thread of head nut, the first end of the adjusting nut is left hand thread, and the internal screw thread of the second end of the adjusting nut is
The lower end of right-handed thread, the upper end of the screw rod and the support rod is respectively arranged with corresponding with the both ends of the adjusting nut
External screw thread, the support rod are toggle-action lever, and the fixing seat, the screw rod, the adjusting nut and the support rod quantity
It is two, is symmetrically distributed in the two sides of the nose girder front leg strut along the central axes of the free bearing respectively.
2. a kind of Bridge Erector flexible leg twisted seat temporary fastening device according to claim 1, it is characterised in that: described solid
Reservation is the steel plate for being welded on the nose girder front leg strut, and through-hole is provided in the fixing seat, and the upper end of the screw rod passes through institute
It states through-hole and is fixedly connected vertically by fixture nut with the fixing seat.
3. a kind of Bridge Erector flexible leg twisted seat temporary fastening device according to claim 1, it is characterised in that: the tune
Its central axes is provided perpendicular in the middle part of whole nut screws stress hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420342.8A CN105887697B (en) | 2016-06-13 | 2016-06-13 | A kind of Bridge Erector flexible leg twisted seat temporary fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420342.8A CN105887697B (en) | 2016-06-13 | 2016-06-13 | A kind of Bridge Erector flexible leg twisted seat temporary fastening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105887697A CN105887697A (en) | 2016-08-24 |
| CN105887697B true CN105887697B (en) | 2019-01-11 |
Family
ID=56729411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610420342.8A Active CN105887697B (en) | 2016-06-13 | 2016-06-13 | A kind of Bridge Erector flexible leg twisted seat temporary fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105887697B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201588174U (en) * | 2009-11-17 | 2010-09-22 | 徐工集团工程机械有限公司 | Fast articulated zero preload track connecting device |
| JP2015101894A (en) * | 2013-11-26 | 2015-06-04 | 東日本旅客鉄道株式会社 | Mobility limitation device and construction method of mobility limitation device |
| CN204530505U (en) * | 2015-01-09 | 2015-08-05 | 中铁二院工程集团有限责任公司 | Bridge Rotation Construction Technique Rotary ball hinge |
| CN204919305U (en) * | 2015-09-01 | 2015-12-30 | 上海建筑设计研究院有限公司 | Foldable dropproof device |
| CN205242265U (en) * | 2015-11-30 | 2016-05-18 | 中铁十八局集团第五工程有限公司 | A change hinge structure that is used for steel bridge tower to erect to be changeed |
| CN205741931U (en) * | 2016-06-13 | 2016-11-30 | 中铁八局集团第二工程有限公司 | A kind of Bridge Erector flexible leg twisted seat temporary fastening device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105083486A (en) * | 2015-08-03 | 2015-11-25 | 上海海洋大学 | Temporary fixing device and construction method thereof |
-
2016
- 2016-06-13 CN CN201610420342.8A patent/CN105887697B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201588174U (en) * | 2009-11-17 | 2010-09-22 | 徐工集团工程机械有限公司 | Fast articulated zero preload track connecting device |
| JP2015101894A (en) * | 2013-11-26 | 2015-06-04 | 東日本旅客鉄道株式会社 | Mobility limitation device and construction method of mobility limitation device |
| CN204530505U (en) * | 2015-01-09 | 2015-08-05 | 中铁二院工程集团有限责任公司 | Bridge Rotation Construction Technique Rotary ball hinge |
| CN204919305U (en) * | 2015-09-01 | 2015-12-30 | 上海建筑设计研究院有限公司 | Foldable dropproof device |
| CN205242265U (en) * | 2015-11-30 | 2016-05-18 | 中铁十八局集团第五工程有限公司 | A change hinge structure that is used for steel bridge tower to erect to be changeed |
| CN205741931U (en) * | 2016-06-13 | 2016-11-30 | 中铁八局集团第二工程有限公司 | A kind of Bridge Erector flexible leg twisted seat temporary fastening device |
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|---|---|
| CN105887697A (en) | 2016-08-24 |
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Inventor after: Zhang Fei Inventor after: Tan Jun Inventor after: Liu Taifu Inventor after: Chen Jiangyi Inventor after: Wang Guanjun Inventor after: Li Xiangyu Inventor after: Zeng Wen Inventor before: Wang Guanjun Inventor before: Tan Jun Inventor before: Chen Jiangyi Inventor before: Li Xiangyu |
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