CN112554069B

CN112554069B - Bridge steel box girder construction platform

Info

Publication number: CN112554069B
Application number: CN202011462712.7A
Authority: CN
Inventors: 邱练军; 朱文勤
Original assignee: Yiyang Zhenyu Intelligent Machine Co ltd
Current assignee: Yiyang Zhenyu Intelligent Machinery Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2022-05-17
Anticipated expiration: 2040-12-14
Also published as: CN112554069A

Abstract

The invention relates to the technical field of steel box girders and discloses a bridge steel box girder construction platform which comprises a main bridge box girder, a platform and a traveling mechanism, wherein H-shaped steel rails are welded and fixed on the upper surface of the platform, the number of the H-shaped steel rails is two, the two H-shaped steel rails are oppositely distributed on the left and right, a plurality of suspension assemblies are horizontally placed above the two H-shaped steel rails, the lower surfaces of the suspension assemblies are fixedly connected with lug plates, the traveling mechanism is detachably connected below the lug plates, and the traveling mechanism comprises a rotating shaft, a second gear, a connecting piece, a nut, a rotating wheel and a shaft disc; the H-shaped steel rails are respectively installed on two sides of the upper surface of the platform, the rotating wheels are arranged in the H-shaped steel rails, the hanging box girder hook is arranged above the hanging assembly, the quick-release bolt is arranged, the traveling mechanism is arranged below the hanging assembly, and the automatic traveling of the construction platform can be realized through the transmission of the motor, the first gear, the second gear and the rack around the traveling mechanism.

Description

Bridge steel box girder construction platform

Technical Field

The invention relates to the technical field of steel box girders, in particular to a bridge steel box girder construction platform.

Background

The steel box girder is also called steel plate box girder, and is a common structural form of a large-span bridge. The steel box girder is generally used on bridges with large span and is called as a steel box girder because the steel box girder is shaped like a box. After 2000 years, the figure of the steel box girder bridge in the highway bridge frequently enters the visual field of people, and the steel box girder bridge is widely applied to urban overpasses and overpasses in particular. For example, in the nine polder port bridge engineering of a traffic main road in the Nantong city G204 national route diversion crossing the nine polder port river and directly entering the Nantong city area, the main bridge section is a single-box multi-chamber variable-height three-span continuous steel box girder bridge, the bridge span is arranged to be 50+80+50m, and the total span of the steel box girder is 179.8 m.

The conventional scheme of bridge steel box girder construction platform utilizes bridge inspection car track, makes the platform length and width bigger, and this scheme has following not enough: the construction utilizes the limitation, must install the inspection car track and just can use, in addition, the platform is bulky, weight is big, leads to the security to descend, and the cost is higher.

The construction platform for manually walking the steel box girder of the bridge utilizes the steel box girder bottom plate as a carrier and can walk longitudinally along the steel box girder, and the scheme has the following defects: the walking is pulled by the chain block, the speed is slow, the efficiency is very high, the construction progress is influenced, and the crane is matched when the chain block is hung, so that the equipment waste is large.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a bridge steel box girder construction platform, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a bridge steel box girder construction platform comprises a main bridge box girder, a platform and a traveling mechanism, wherein H-shaped steel tracks are fixed on the upper surface of the platform in a welded manner, the number of the H-shaped steel tracks is two, the two H-shaped steel tracks are oppositely distributed on the left side and the right side, a plurality of suspension assemblies are horizontally placed above the two H-shaped steel tracks, the lower surfaces of the suspension assemblies are fixedly connected with lug plates, the traveling mechanism is detachably connected below the lug plates and comprises a rotating shaft, a second gear, a connecting piece, a nut, a rotating wheel and a shaft disc, a supporting plate is positioned between the two lug plates and detachably connected with the two lug plates through bolts, the connecting piece is fixedly connected below the second gear and far away from the inside of the supporting plate, the rotating shaft is fixedly connected on the left side and the right side of the outer side wall of the connecting piece, one side of the outer side wall of the connecting piece is close to the rotating shaft is in threaded connection with the nut, two the opposite side of pivot is rotated respectively and is connected with the reel, one side fixedly connected with of reel the runner, just the runner inlays to be established orbital inside of H shaped steel, and the runner with H shaped steel track sliding connection is in left the lateral wall of reel rotates and is connected with the second gear is in the upper surface left side the place ahead of platform curb plate one side fixedly connected with support, the last fixed surface of support is connected with the motor, the internal rotation of motor is connected with the pivot, the pivot runs through to the inside of curb plate, just the first gear of lateral wall right side fixedly connected with of pivot, first gear with the meshing of second gear is connected, the outside cover of first gear is equipped with the rack, just the inside rear and another of rack first gear meshing is connected, the inside left and right sides of hanging the subassembly can be dismantled through the bolt respectively and be connected with and hang case roof beam couple The hanging box girder hook is provided with a plurality of hooks, the main bridge box girder is clamped between the hanging box girder hooks, the shear pin penetrates through the inside of the hanging box girder hook, and the bottom end of the shear pin is attached to the main bridge box girder.

Preferably, the left side and the right side of the upper surface of the platform are respectively provided with a railing, and the railings are welded and fixed with the platform.

Preferably, the number of the travelling mechanisms is eight, and every two travelling mechanisms are distributed below the suspension assembly in a left-right mode.

Preferably, four rotating wheels are arranged between the two rotating shafts, and the rotating wheels are arranged inside the H-shaped steel track.

Preferably, the platform is formed by welding a plurality of square pipes with different lengths, and the main section of the platform is an inverted isosceles trapezoid.

(III) advantageous effects

The invention provides a bridge steel box girder construction platform which has the following beneficial effects:

(1) according to the construction platform, the two sides of the upper surface of the platform are respectively provided with the H-shaped steel track, the rotating wheels are arranged in the H-shaped steel tracks, the hanging box girder hook and the quick-release bolt are arranged above the hanging assembly, the travelling mechanism is arranged below the hanging assembly, automatic travelling of the construction platform can be realized through the transmission of the motor, the first gear, the second gear and the rack around the travelling mechanism, meanwhile, the quick-release bolt and the hanging box girder hook are intermittently disassembled and move forwards, intermittent travelling of the platform can be realized, in addition, the hanging assembly is provided with various intervals, so that the platform can be applied to steel box girders with bottom plates of various widths, and the cost is greatly saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic left-side plan view of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 according to the present invention;

FIG. 5 is a schematic illustration of the platform structure of FIG. 1 according to the present invention;

FIG. 6 is a schematic view of the present invention showing the hook structure of the hanging box girder of FIG. 2;

FIG. 7 is a schematic view of the shear pin configuration of FIG. 1 in accordance with the present invention;

FIG. 8 is a schematic view of the quick release latch of FIG. 1 according to the present invention;

FIG. 9 is a schematic illustration of the suspension assembly of FIG. 1 according to the present invention;

FIG. 10 is a schematic view of the ear plate of FIG. 2 according to the present invention;

FIG. 11 is a schematic view of a portion of FIG. 2 according to the present invention;

FIG. 12 is a schematic cross-sectional view of the H-shaped steel rail of FIG. 1 according to the present invention.

In the figure: 100. a traveling mechanism; 1. a main axle box girder; 2. an H-shaped steel track; 3. a platform; 4. hanging a box girder hook; 5. a suspension assembly; 6. a support; 7. a motor; 8. a rotating shaft; 9. a side plate; 10. a rack; 11. a first gear; 12. a second gear; 13. a connecting member; 14. a support plate; 15. a nut; 16. a rotating wheel; 17. an ear plate; 18. a shear pin; 19. a quick release latch; 20. and a shaft disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 12, the present invention provides a technical solution: a construction platform for steel box girders of a bridge comprises a main bridge box girder 1, a platform 3 and a traveling mechanism 100, wherein H-shaped steel rails 2 are welded and fixed on the upper surface of the platform 3, the number of the H-shaped steel rails 2 is two, the two H-shaped steel rails 2 are oppositely distributed left and right, a plurality of suspension assemblies 5 are horizontally placed above the two H-shaped steel rails 2, the lower surfaces of the suspension assemblies 5 are fixedly connected with lug plates 17, the traveling mechanism 100 is detachably connected below the lug plates 17, the traveling mechanism 100 comprises a rotating shaft 8, a second gear 12, a connecting piece 13, nuts 15, a rotating wheel 16 and a shaft disc 20, a supporting plate 14 is positioned between the two lug plates 17 and detachably connected with the two lug plates 17 through bolts, the connecting piece 13 is fixedly connected below the supporting plate 14, which is far away from the second gear 12, the rotating shaft 8 is fixedly connected to the left side and the right side of the outer side wall of the connecting piece 13, one side of the outer side wall, which is close to the rotating shaft 8, is in threaded connection with the nut 15, opposite sides of the two rotating shafts 8 are respectively and rotatably connected with a shaft disc 20, one side of the shaft disc 20 is fixedly connected with a rotating wheel 16, the rotating wheel 16 is embedded in the H-shaped steel track 2, the rotating wheel 16 is in sliding connection with the H-shaped steel track 2, the outer side wall of the shaft disc 20 on the left side is rotatably connected with a second gear 12, one side of a side plate 9 on the front left side of the upper surface of the platform 3 is fixedly connected with a support 6, the upper surface of the support 6 is fixedly connected with a motor 7, the inner part of the motor 7 is rotatably connected with a rotating shaft 8, the rotating shaft 8 penetrates through the inner part of the side plate 9, the right side of the outer side wall of the rotating shaft 8 is fixedly connected with a first gear 11, the first gear 11 is meshed with the second gear 12, a rack 10 is sleeved on the outer part of the first gear 11, the rear part of the inner part of the rack 10 is meshed with another first gear 11, the left side and the right side of the inner part of the suspension assembly 5 are respectively and detachably connected with a suspension box beam hook 4 through a quick release bolt 19, hang case roof beam couple 4 totally a plurality ofly, a plurality ofly hang and hold main bridge case roof beam 1 between the case roof beam couple 4, the inside of hanging case roof beam couple 4 runs through there is shear pin 18, and shear pin 18's bottom and main bridge case roof beam 1 laminate mutually.

Further, the upper surface left and right sides of platform 3 is equipped with the railing respectively, railing and 3 welded fastening of platform, and the railing is the metal material, and the railing is connected with platform 3 and can plays the guard action.

Furthermore, the number of the traveling mechanisms 100 is eight, every two traveling mechanisms 100 are distributed below the suspension assembly 5 from left to right, the traveling mechanisms 100 can move on the H-shaped steel track 2, and the rotating wheels 16 on the traveling mechanisms 100 cannot be separated from the H-shaped steel track 2 from the front side and the rear side.

Furthermore, four rotating wheels 16 are arranged between the two rotating shafts 8, the rotating wheels 16 are arranged inside the H-shaped steel track 2, and the rotating wheels 16 can move flexibly.

Further, the platform 3 is formed by welding a plurality of square pipes with different lengths, and the main section of the platform 3 is an inverted isosceles trapezoid.

In conclusion, the working process of the invention is as follows: because respectively install an H shaped steel track 2 in platform 3 upper surface both sides, set up runner 16 in this H shaped steel track 2, there is hanging box girder couple 4 suspension subassembly 5 top, quick detach bolt 19, there is running gear 100 suspension subassembly 5 below, through motor 7 around running gear 100, first gear 11, second gear 12 and rack 10 transmission, can realize construction platform 3's automatic walking, and simultaneously, quick detach bolt 19 is unpacked apart to intermittent type nature and hanging box girder couple 4, and move forward, can realize platform 3's intermittent type walking.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge steel box girder construction platform, includes main bridge box girder (1), platform (3), backup pad (14) and running gear (100), its characterized in that: the upper surface welding of platform (3) is fixed with H shaped steel track (2), the quantity of H shaped steel track (2) is two, and two relative distribution about H shaped steel track (2), two a plurality of subassemblies (5) that hang have been placed to the top level of H shaped steel track (2), the lower fixed surface who hangs subassembly (5) is connected with otic placode (17), the below detachable connection of otic placode (17) has running gear (100), running gear (100) includes pivot (8), second gear (12), connecting piece (13), nut (15), runner (16) and reel (20), backup pad (14) are located two between otic placode (17), and with two otic placode (17) can dismantle the connection through the bolt, the inside of backup pad (14) is kept away from the below fixed connection of second gear (12) has connecting piece (13), the outer side wall left and right sides of the connecting piece (13) are fixedly connected with the rotating shaft (8), one side of the outer side wall of the connecting piece (13) close to the rotating shaft (8) is in threaded connection with the nut (15), the opposite sides of the two rotating shafts (8) are respectively in rotating connection with the shaft disc (20), one side of the shaft disc (20) is fixedly connected with the rotating wheel (16), the rotating wheel (16) is embedded in the H-shaped steel track (2), the rotating wheel (16) is in sliding connection with the H-shaped steel track (2), the outer side wall of the shaft disc (20) on the left side is in rotating connection with the second gear (12), one side of the side plate (9) in front of the left side of the upper surface of the platform (3) is fixedly connected with the support (6), the upper surface of the support (6) is fixedly connected with the motor (7), and the inner part of the motor (7) is connected with the rotating shaft (8), the rotating shaft (8) penetrates into the side plate (9), a first gear (11) is fixedly connected to the right side of the outer side wall of the rotating shaft (8), the first gear (11) is meshed with the second gear (12), a rack (10) is sleeved outside the first gear (11), and the rear part of the inner part of the rack (10) is meshed with the other first gear (11), the left side and the right side inside the suspension component (5) are respectively detachably connected with a suspension box girder hook (4) through a quick-release bolt (19), the number of the hanging box girder hooks (4) is multiple, the main bridge box girder (1) is clamped between the hanging box girder hooks (4), a shear pin (18) penetrates through the interior of the hanging box girder hook (4), and the bottom end of the shear pin (18) is attached to the main bridge box girder (1).

2. The bridge steel box girder construction platform of claim 1, characterized in that: the guardrail comprises a platform (3) and is characterized in that railings are arranged on the left side and the right side of the upper surface of the platform (3) respectively and are fixed to the platform (3) in a welded mode.

3. The bridge steel box girder construction platform of claim 1, characterized in that: eight walking mechanisms (100) are provided, and every two walking mechanisms (100) are distributed below the suspension assembly (5) in a left-right mode.

4. The bridge steel box girder construction platform of claim 1, characterized in that: the rotating shafts (8) are arranged in parallel, four rotating wheels (16) are arranged between the two rotating shafts (8), and the rotating wheels (16) are placed inside the H-shaped steel track (2).

5. The bridge steel box girder construction platform of claim 1, characterized in that: platform (3) are formed by the welding of a plurality of square pipe not of uniform length, just the owner of platform (3) looks the cross-section and is the isosceles trapezoid that handstands.