CN211171645U - Girder of bridge transporting frame machine - Google Patents

Abstract

The embodiment of the application provides a bridge fortune frame machine girder includes: the first fixed beam body, the first adjusting beam body and the second fixed beam body are sequentially arranged along the longitudinal direction, and two ends of the first adjusting beam body are detachably connected with the first fixed beam body and the second fixed beam body respectively; first web holes used for accommodating a rear lifting device in the bridge frame transporting machine and providing space for longitudinal movement of the rear lifting device are symmetrically formed in webs on two sides of the first fixed beam body, and the first web holes extend along the longitudinal direction. The bridge fortune frame machine girder that this application embodiment provided can adapt to the simple beam of multiple span, is applied to bridge fortune frame machine and carries out handling and erect the simple beam of multiple span.

Description

Girder of bridge transporting frame machine

Technical Field

The application relates to a bridge construction technology, in particular to a bridge transporting and erecting machine girder.

Background

The bridge transporting and erecting machine is one of main devices for railway bridge construction, can transport concrete beams to bridge positions for erection, has the advantages of high construction speed, flexibility and the like, does not need to disassemble any parts in the process of erecting, does not need auxiliary machinery and too much labor, and greatly improves the efficiency of erecting the bridge.

The length of the simple supported beam suitable for the traditional railway is about 32 meters, and the existing integrated bridge frame transporting machine is designed for the simple supported beam suitable for 32 meters. For a simple beam of 40 meters of a high-speed railway at the present stage, the traditional bridge frame transporting machine cannot meet the requirements. The problem can be solved by prolonging the length of the bridge frame transporting machine to adapt to the requirement of a 40-meter simple support beam, but with the technical progress, simple support beams with other lengths can appear in the future, and if the bridge frame transporting machine is designed correspondingly for each length of the simple support beam, resources can be greatly wasted.

Disclosure of Invention

In order to solve one of the technical defects, the embodiment of the application provides a main beam of a bridge frame transporting machine.

An embodiment of the first aspect of this application provides a bridge fortune frame machine girder, includes: the first fixed beam body, the first adjusting beam body and the second fixed beam body are sequentially arranged along the longitudinal direction, and two ends of the first adjusting beam body are detachably connected with the first fixed beam body and the second fixed beam body respectively;

first web holes used for accommodating a rear lifting device in the bridge frame transporting machine and providing space for longitudinal movement of the rear lifting device are symmetrically formed in webs on two sides of the first fixed beam body, and the first web holes extend along the longitudinal direction.

According to the main beam of the bridge frame transporting machine, the opening of the first web hole extends to the front end of the first fixed beam body;

second web holes are symmetrically formed in the webs on the two sides of the first adjusting beam body, and the second web holes extend along the longitudinal direction; the opening of the second web hole extends to the rear end of the first adjusting beam body; the first web aperture interfaces with the second web aperture such that the rear lifting device is movable within the area formed by the first and second web apertures.

The bridge fortune frame machine girder as above still includes: and the web hole filling plate is arranged in the first web hole and/or the second web hole and is connected with the webs positioned above and below the first web hole and/or the second web hole.

The bridge fortune frame machine girder as above still includes:

and the beam body connecting assembly is used for connecting the first fixed beam body with the first adjusting beam body, the second fixed beam body with the first adjusting beam body or the first fixed beam body with the second fixed beam body.

The bridge fortune frame quick-witted girder as above, roof beam body coupling assembling includes:

the outer connecting plate is positioned on the outer side of the joint of the two adjacent beam bodies and respectively has an overlapping part with the two beam bodies;

the inner connecting plate is positioned on the inner side of the joint of the two adjacent beam bodies and respectively has an overlapping part with the two beam bodies; the inner side connecting plate corresponds to the outer side connecting plate in position and is connected with the outer side connecting plate through bolts; two adjacent beam bodies are: the first fixed beam body and the first adjusting beam body, or the second fixed beam body and the first adjusting beam body, or the first fixed beam body and the second fixed beam body.

According to the main beam of the bridge frame transporting machine, the two adjacent beam bodies are box-shaped structures with rectangular sections respectively;

and the four surfaces at the joints of the two adjacent beam bodies are respectively and correspondingly provided with an outer side connecting plate and an inner side connecting plate.

The bridge fortune frame quick-witted girder as above, first fixed roof beam body includes: an upper flange plate, a lower flange plate, an upper web plate and a lower web plate;

the two upper webs are respectively connected to two sides of the upper flange plate and are perpendicular to the upper flange plate;

the two lower webs are respectively connected to two sides of the lower flange plate and are perpendicular to the lower flange plate; the lower web plate is connected with the upper web plate through a web plate flange;

go up the bottom of web and upwards sunken first depressed part that forms, the top of web is sunken downwards down and is formed the second depressed part down, first depressed part and second depressed part butt joint form first web hole.

The bridge fortune frame quick-witted girder as above, first fixed roof beam body still includes: an upper partition plate and a lower partition plate; the upper partition plate and the lower partition plate are positioned in an area defined by the upper flange plate, the lower flange plate, the upper web plate and the lower web plate;

the upper partition plate is respectively and vertically connected with the upper flange plate and the upper web plate, and the lower partition plate is respectively and vertically connected with the lower flange plate and the lower web plate; the upper clapboard is connected with the lower clapboard through a clapboard flange.

The bridge fortune frame machine girder as above still includes:

the flange plate reinforcing ribs are connected to the inner sides of the upper flange plate and the lower flange plate; the section of the flange plate reinforcing rib is T-shaped and is arranged along the whole length of the upper flange plate and the lower flange plate;

the web reinforcing rib is connected with the inner side of the upper web and the inner side of the lower web; the cross section of the web reinforcing rib is T-shaped and is arranged along the whole length of the upper web and the lower web.

The bridge fortune frame machine girder as above still includes: the second adjusting beam body is detachably connected to the front end of the second fixing beam body;

and a second rail is arranged at the bottom of the second adjusting beam body and is butted with the first rail arranged at the bottom of the second fixing beam body, so that the main supporting leg in the bridge frame transporting machine can move on the first rail and the second rail.

According to the technical scheme provided by the embodiment of the application, the main beam comprises a first fixed beam body, a first adjusting beam body and a second fixed beam body which are sequentially arranged along the longitudinal direction, wherein two ends of the first adjusting beam body are detachably connected with the first fixed beam body and the second fixed beam body respectively, and when the first adjusting beam body is connected between the first fixed beam body and the second fixed beam body, the long simply supported beam can be adapted; after the first adjusting beam body is removed, the first fixed beam body is directly connected with the second fixed beam body, so that the adjustable beam can adapt to a shorter simply supported beam; and, fix the preceding hoisting apparatus who is used for hoist and mount simple beam front end on the second fixed beam body, the back hoisting apparatus for hoist and mount simple beam rear end movably sets up on first fixed beam body, and back hoisting apparatus is along the first web hole longitudinal movement that first fixed beam body set up, can adapt to the simple beam of different length in a flexible way.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a bridge girder erection gantry through hole provided in an embodiment of the present application;

FIG. 2 is a schematic structural view of a main beam provided in an embodiment of the present disclosure;

FIG. 3 is an enlarged view of area A of FIG. 1;

FIG. 4 is a longitudinal sectional view of the area B in FIG. 2;

FIG. 5 is a longitudinal sectional view of the area C of FIG. 2;

FIG. 6 is a longitudinal connecting view of the area D in FIG. 2;

FIG. 7 is a cross-sectional view E-E of FIG. 2;

FIG. 8 is an enlarged view of area F of FIG. 7;

FIG. 9 is a schematic view of the first fixed beam and the first adjusting beam of FIG. 2;

FIG. 10 is a sectional view taken along line G-G of FIG. 9;

FIG. 11 is a cross-sectional view H-H of FIG. 9;

FIG. 12 is a schematic structural view of a second fixed beam and a second adjustable beam;

fig. 13 is a cross-sectional view taken along line I-I of fig. 12.

Reference numerals:

1-a main beam; 11-a first fixed beam; 111-first web holes; 112-first fixed beam body upper flange plate; 113-first fixed beam body lower flange plate; 114-first fixed beam upper web; 115-a first fixed beam lower web; 116-first fixed beam upper spacer; 117-first fixed beam lower spacer; 12-a first adjusting beam; 121-second web holes; 122-first adjusting beam body upper flange plate; 123-a first adjusting beam body lower flange plate; 124-first adjusting beam web; 13-a second fixed beam; 131-a second fixed beam web; 132-a first track; 133-second fixed beam upper flange plate; 134-a second fixed beam body lower flange plate; 135-a second fixed beam upper web; 136-a second fixed beam lower web; 137-second fixed beam upper baffle; 138-a second fixed beam lower spacer; 14-a drive device; 15-web hole-filling plate; 16-an outer connecting plate; 17-an inner connecting plate; 18-a second adjustment beam; 181-a second track; 191-web flange; 192-flange plate stiffening ribs; 193-web stiffeners; 194-a diaphragm flange; 195-rail reinforcing steel plate;

2-a front lifting device;

3-a rear lifting device; 31-rear lifting beam; 32-rear lifting spreader;

4-a main leg;

5-a front vehicle device;

6-rear vehicle device;

7-middle leg;

8, a hoisting system;

9-simply supported beam; 91-pier.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The embodiment provides a bridge fortune frame machine girder, can be applied to bridge fortune frame machine for carry out handling and erect the simple beam. The bridge transporting frame adopting the main beam provided by the embodiment can adapt to simple beams with various lengths.

Fig. 1 is a schematic view of a bridge girder erection gantry preparation via hole provided in an embodiment of the present application, and fig. 2 is a schematic view of a structure of a main girder provided in an embodiment of the present application. The structure of the main beam will be described in detail by taking the carriage shown in fig. 1 and 2 as an example. Of course, the main beam provided by the embodiment is not limited to be applied to the rack transport machine provided by the embodiment. Besides the frame transporting machine provided by the embodiment, the main beam can be applied to frame transporting machines with other structures and can be adaptively modified to adapt to frame transporting machines with different structures. The bridge frame transporting machine is used for preparing through holes, namely the process of transporting the simply supported beam to a site to be erected and placing the main supporting leg and the main supporting leg to be supported on the bridge pier.

As shown in fig. 1 and 2, the bridge transportation rack machine provided by the present embodiment includes: main beam 1, front hoisting device 2, rear hoisting device 3 and main landing leg 4.

The length direction of the main beam 1 is the same as the erection direction of the simply supported beam 9, and the direction is called as the longitudinal direction. A direction perpendicular to the longitudinal direction is referred to as a lateral direction, and a vertical direction is referred to as a vertical direction. The main beam 1 is the main structure of the frame transporting machine, and all the parts in the frame transporting machine are arranged on the main beam 1. The girder 1 includes along the longitudinal direction from the first fixed roof beam body 11, the first roof beam body 12 and the fixed roof beam body 13 of second of adjusting that sets gradually forward backward, wherein, the both ends of the first roof beam body 12 of adjusting can dismantle with the fixed roof beam body 13 of first fixed roof beam body 11 and second respectively and be connected.

The front hoisting device 2 is fixedly arranged on the second fixed beam body 13 and used for hoisting the front end of the simply supported beam 9. The rear lifting device 3 is arranged on the first fixed beam body 11, movable in the longitudinal direction with respect to the first fixed beam body 11. The rear hoisting device 3 is used for hoisting the rear end of the simply supported beam 9. The front hoisting device 2 and the rear hoisting device respectively hoist two ends of the simply supported beam 9, and can drive the simply supported beam 9 to lift.

The first fixed beam body 11, the first adjusting beam body 12 and the second fixed beam body 13 in the main beam 1 may be box-shaped structures, for example, each beam body is a box-shaped structure with a rectangular cross section, and is formed by connecting an upper flange plate, a lower flange plate and web plates at two sides. Of course, the cross section of each beam body may also be in other shapes, and this embodiment is not limited.

First web holes 111 are symmetrically formed in webs on two sides of the first fixed beam body 11, and the first web holes 111 extend in the longitudinal direction. The rear lifting device 3 is arranged on the first web holes 111 formed in the webs on the two sides in a spanning mode, and can move along the first web holes 111 until the distance between the rear lifting device 3 and the front lifting device 2 meets the lifting requirement of the simply supported beam 9.

The main leg 4 is arranged on the second fixed beam 13 to be movable in the longitudinal direction relative to the second fixed beam 13. The main supporting leg 4 is positioned at the front end of the main beam 1 and used for supporting the main beam 1 on a pier at the front end of the simply supported beam to be erected.

In addition, the bridge fortune frame machine still includes: the front vehicle device 5, the rear vehicle device 6, the middle supporting leg 7 and the hoisting system 8. The front vehicle device 5 is arranged on the second fixed beam body 13, the rear vehicle device 6 is fixed on the first fixed beam body 11, the front vehicle device 5 and the rear vehicle device 6 are similar in structure and comprise main vehicle frames, driving equipment and wheels, and the driving equipment can drive the wheels to walk on roads, tunnels and erected simply supported beams, so that the main vehicle frames are driven to move forwards or backwards along the longitudinal direction.

The bridge frame transporting machine meets the requirements of frame beams at the tunnel exit and the tunnel entrance and also meets the requirements of frame beams in other application scenes

The middle leg 7 is fixed to the second fixed beam body 13 for supporting on the pier when it is necessary to move the main leg 4 to support the girder 1 to be balanced. The hoisting system 8 is arranged on the first fixed beam body 11 and used for providing hoisting power for the front hoisting device 2 and the rear hoisting device 3 to promote the lifting thereof. The front car device 5, the rear car device 6, the middle support leg 7 and the hoisting system 8 can be realized by means commonly used in the field, and the embodiment is not described in detail and is not limited.

The girder that this embodiment provided can adapt to the simple beam of multiple length, can all erect 20 meters to 40 meters simple beam. For example: the main beam is suitable for 32-meter simple supporting beams commonly used in the field and also suitable for 40-meter simple supporting beams.

When a simple supporting beam of 40 meters needs to be erected, the first adjusting beam body 12 is connected between the first fixed beam body 11 and the second fixed beam body 13, which is equivalent to increasing the length of the main beam 1. And the rear lifting device 3 is moved backwards to a suitable position so that the distance between the rear lifting device 3 and the front lifting device 2 meets the hoisting requirement of a 40 m simply supported beam.

When a 32-meter simply supported beam needs to be erected, on the basis of the content, the rear hoisting device 3 is moved forwards until the distance between the rear hoisting device and the front hoisting device 2 meets the hoisting requirement of the 32-meter simply supported beam.

When a simply supported beam with the length of 24 m or 22 m needs to be erected, the rear hoisting device 3 continues to move forwards until the distance between the rear hoisting device and the front hoisting device 2 meets the hoisting requirement of the simply supported beam with the length of 24 m or 22 m; or, the first adjusting beam body 12 is removed, the first fixed beam body 11 is directly connected with the second fixed beam body 12, which is equivalent to shortening the length of the main beam 1, and the position of the rear hoisting device 3 is properly adjusted to meet the hoisting requirement of a 24-meter or 22-meter simply supported beam.

According to the technical scheme provided by the embodiment, the main beam comprises a first fixed beam body, a first adjusting beam body and a second fixed beam body which are sequentially arranged along the longitudinal direction, wherein two ends of the first adjusting beam body are detachably connected with the first fixed beam body and the second fixed beam body respectively, and when the first adjusting beam body is connected between the first fixed beam body and the second fixed beam body, a longer simply supported beam can be adapted; after the first adjusting beam body is removed, the first fixed beam body is directly connected with the second fixed beam body, so that the adjustable beam can adapt to a shorter simply supported beam; and, fix the preceding hoisting apparatus who is used for hoist and mount simple beam front end on the second fixed beam body, the back hoisting apparatus for hoist and mount simple beam rear end movably sets up on first fixed beam body, and back hoisting apparatus is along the first web hole longitudinal movement that first fixed beam body set up, can adapt to the simple beam of different length in a flexible way.

On the basis of the above technical solution, the embodiment provides a specific implementation manner of the rear lifting device 3: fig. 3 is an enlarged view of the area a in fig. 1. As shown in fig. 3, the rear lifting device 3 includes: a rear lifting beam 31 and a rear lifting spreader 32. The rear lifting beam 31 passes through the first web holes 111 formed in the webs on the two sides in the transverse direction, and equivalently spans the first web holes 111 on the two sides and is lapped on the web below the first web holes 111. The number of the rear lifting slings 32 is two, and they are connected to both ends of the rear lifting beam 31 from both outer sides of the first fixed beam body 11, respectively.

Fig. 3 shows that the number of the rear lifting beams 31 is two, the rear lifting beams 31 are arranged side by side, and the two rear lifting beams 31 are connected and move synchronously. The two rear lifting beams 31 can move in the first web hole 111 along the longitudinal direction, and drive the rear lifting slings 32 at the two ends to move in the first web hole 111 along the longitudinal direction.

A driving device 14 may be provided on the first fixed beam body 11 for driving the rear lifting beam 31 to move. The driving device 14 may be a hydraulic driving device, a compressed air driving device or an electric driving device, and the present embodiment employs a jack to hydraulically drive the rear lifting beam 31 to move.

After the approximate position of the rear lifting device 3 is determined, the driving means 14 is fixed to the first fixed beam body 11 by bolts, and the driving means 14 drives the rear lifting device 3 to move in the longitudinal direction for small amplitude adjustment to fit the length of the simply supported beam.

The construction of the rear lifting spreader 32 may be carried out in a manner commonly used in the art, and the connection to the hoisting system 8 may be carried out in a manner commonly used in the art.

Further, the opening of the first web hole 111 extends to the front end of the first fixed beam 11. Second web holes 121 extending along the longitudinal direction are symmetrically formed in webs on two sides of the first adjusting beam body 12, an opening of each second web hole 121 extends to the rear end of the first adjusting beam body 12, and the first web holes 111 and the second web holes 121 are in butt joint so that the rear lifting device 3 can move in an area formed by the first web holes 111 and the second web holes 121. The rear lifting device 3 can move not only in the first web hole 111 but also in the second web hole 121, and the moving distance is extended, so that the rear lifting device can be adapted to a simple beam 9 having a wider variety of lengths.

Further, the web hole filler 15 is provided in the first web hole 111 and/or the second web hole 121 and connected to the corresponding upper and lower webs, thereby improving the strength of the web. The number and location of the web hole-filling plates 15 may be determined according to the location of the rear lifting device 3.

For example: when the rear lifting device 3 is located at the leftmost end of the first web hole 111, four web hole fillers 15 are used in fig. 2 and spaced to the right of the web hole fillers 15. Wherein three web hole filling plates 15 on the left are located in first web hole 111, and the upper and lower webs corresponding to first web hole 111 are connected, and web hole filling plate 15 on the rightmost side is located the position where first web hole 111 and second web hole 121 are docked, and the top of web hole filling plate 15 is connected with the web above first web hole 111 and the web above second web hole 121 respectively, and the bottom is connected with the lateral plate below first web hole 111 and the web below second web hole 121 respectively.

For another example: when the rear lifting device 3 is located at the middle position of the first web hole 111, web hole filling plates 15 may be provided at both sides of the rear lifting device 3.

The following steps are repeated: when the rear lifting device 3 is located at the rightmost end of the second web aperture 121, a plurality of web aperture filling plates 15 may be provided at intervals on the left side of the rear lifting device 3.

The number and the size of the web hole filling plates 15 can be flexibly set, and the positions of the web hole filling plates 15 are adjusted according to the position of the rear lifting device 3, so that the strength, the rigidity and the stability of the girder 1 meet the bridge erection requirements.

The connection mode between the beam bodies can be realized by adopting various means, and the embodiment provides a specific mode: a beam connecting assembly is adopted to connect a first fixed beam 11 with a first adjusting beam 12, a second fixed beam 13 with the first adjusting beam 12, or the first fixed beam 11 with the second fixed beam 13.

The roof beam body coupling assembling specifically includes: an outer connecting plate and an inner connecting plate. The outer side connecting plate is positioned on the outer side of the joint of the two adjacent beam bodies and respectively has an overlapping part with the two beam bodies. The inner side connecting plate is positioned at the inner side of the joint of the two adjacent beam bodies and respectively has an overlapping part with the two beam bodies. The inner side connecting plate corresponds to the outer side connecting plate in position and is connected through a bolt.

The two adjacent beam bodies are as follows: the first fixed beam body 11 and the first adjusting beam body 12, or the second fixed beam body and the first adjusting beam body 13, or the first fixed beam body 11 and the second fixed beam body 13. When individual roof beam body is rectangle box girder, all be provided with roof beam body coupling assembling on four faces of the roof beam body, promptly: the outer sides of the upper flange plate, the lower flange plate and the webs on the two sides of the beam body are respectively provided with an outer side connecting plate, the inner sides of the upper flange plate, the lower flange plate and the webs on the two sides of the beam body are respectively provided with an inner side connecting plate, and the inner side connecting plates are connected with the corresponding outer side connecting plates.

Taking the connection between the first fixed beam 11 and the first adjusting beam 12 as an example, fig. 4 is a longitudinal connection view of the area B in fig. 2. Fig. 4 shows the connection of the first fixed beam 11 to the upper flange plate of the first adjusting beam 12. As shown in fig. 4, the first fixed beam upper flange plate 112 is butted against the first adjusting beam upper flange plate 122, and the outer connecting plate 16 is located above the butted portion and has an overlapped portion with the first fixed beam upper flange plate 112 and the first adjusting beam upper flange plate 122, respectively; the inboard connecting plate 17 is located below the butt joint and overlaps the first fixed beam upper flange 112 and the first adjusting beam upper flange 122, respectively. Bolts are adopted to sequentially penetrate through the inner side connecting plate 17, the first fixed beam upper flange plate 112 and the outer side connecting plate 16 along the vertical direction, and sequentially penetrate through the inner side connecting plate 17, the first adjusting beam upper flange plate 122 and the outer side connecting plate 16 along the vertical direction, so that the respective upper flange plates of the first fixed beam 11 and the first adjusting beam 12 are connected together.

Fig. 5 is a longitudinal connection view of the region C in fig. 2. Fig. 5 shows the connection of the first fixed beam 11 to the lower flange plate of the first adjusting beam 12. As shown in fig. 5, the first fixed beam lower flange plate 113 is butted against the first adjusting beam lower flange plate 123, and the outer connecting plate 16 is located below the butted portion and has an overlapping portion with the first fixed beam lower flange plate 113 and the first adjusting beam lower flange plate 123, respectively; the inner connecting plate 17 is located above the butt joint and overlaps the first fixed beam lower flange plate 113 and the first adjusting beam lower flange plate 123, respectively. Bolts are adopted to sequentially penetrate through the inner side connecting plate 17, the first fixed beam lower flange plate 113 and the outer side connecting plate 16 in the vertical direction and sequentially penetrate through the inner side connecting plate 17, the first adjusting beam lower flange plate 123 and the outer side connecting plate 16 in the vertical direction, so that the first fixed beam 11 and the first adjusting beam 12 are connected together through respective lower flange plates.

Fig. 6 is a longitudinal connection view of the area D in fig. 2, and fig. 6 shows the connection between the webs of the first adjusting beam 12 and the second fixing beam 13. As shown in fig. 6, the first adjusting beam web 124 is abutted with the second fixed beam web 131, the outer connecting plate 16 is located at the outer side of the abutted position and has an overlapping portion with the first adjusting beam web 124 and the second fixed beam web 131 respectively, the inner connecting plate 17 is located at the inner side of the abutted position and has an overlapping portion with the first adjusting beam web 124 and the second fixed beam web 131 respectively, and fig. 5 is a cross-sectional view, and only the inner connecting plate 17 can be seen. Bolts are adopted to sequentially penetrate through the inner connecting plate 17, the first adjusting beam web 124 and the outer connecting plate 16 along the transverse direction, and sequentially penetrate through the inner connecting plate 17, the second fixing beam web 131 and the outer connecting plate 16 along the transverse direction, so that respective webs of the first adjusting beam 12 and the second fixing beam 13 are connected together.

Fig. 7 is a sectional view taken along line E-E of fig. 2, and fig. 8 is an enlarged view of region F of fig. 7. Fig. 7 and 8 show the connection between the first adjusting beam 12 and the second fixing beam 13. As shown in fig. 7 and 8, the webs on both sides of the first adjusting beam 12 and the second fixing beam 13 are connected in the above-mentioned manner. The upper and lower flange plates of the first adjustment beam 12 and the second fixed beam 13 are also connected in the manner described above.

The main leg 4 can move longitudinally relative to the second fixed beam 13, and specifically, a first rail 132 is disposed at the bottom of the second fixed beam 13, and a roller is disposed at the top of the main leg 4 and slides along the first rail 132.

On the basis of the above technical solution, the present embodiment provides another implementation manner of the main beam 1: as shown in fig. 2, the main beam 1 further includes: a second adjustment beam 18. The second adjusting beam 18 is detachably coupled to the front end of the second fixing beam 13. The bottom of the second adjusting beam 18 is provided with a second rail 181, and the second rail 181 is butted against the first rail 132 so that the main leg 4 can move on the first rail and the second rail. The longitudinal moving distance of the main supporting leg 4 is prolonged equivalently, and the requirement of erecting a longer simply supported beam is further met.

The second adjusting beam 18 and the second fixing beam 13 can be connected by the beam connecting assembly.

On the basis of the above technical solution, this embodiment provides another implementation manner of the main beam 1: the main beam 1 is formed by splicing a plurality of sections, in the embodiment, nine sections are adopted to splice and form the main beam 1, such as the section 101 to the section 109 shown in fig. 2. Wherein the segment 101 and the segment 102 are connected together to form a first fixed beam 11, the segment 103 is used as a first adjusting beam 12, the segments 104 to 108 are connected together to form a second fixed beam 13, and the segment 109 is equivalent to the second adjusting beam 18. The length of the main beam 1 is adjusted by disassembling the sections 103 and 109 to adapt to the simple beams 9 with different lengths. The length of each segment can be set according to the bearing condition of each point of the main beam 1 and the transportation condition of the main beam. Divide into a plurality of sections with the girder, link together through roof beam body coupling assembling between each section, easy dismounting is convenient for transport.

Each beam body is connected into a box-type structure by an upper flange plate, a lower flange plate, an upper web plate and a lower web plate and can be fixed together in a welding mode. Taking the first fixed beam 11 as an example, the first fixed beam 11 includes: a first fixed beam upper flange plate 112, a first fixed beam lower flange plate 113, a first fixed beam upper web 114, and a first fixed beam lower web 115. In the following description, the four components are abbreviated, and the first fixed beam upper flange plate 112 is abbreviated as an upper flange plate 112, the first fixed beam lower flange plate 113 is abbreviated as a lower flange plate 113, the first fixed beam upper web 114 is abbreviated as an upper web 114, and the first fixed beam lower web 115 is abbreviated as a lower web 115.

Fig. 9 is a schematic view of a first fixing beam and a first adjusting beam of fig. 2, fig. 10 is a sectional view G-G of fig. 9, and fig. 11 is a sectional view H-H of fig. 9. As shown in fig. 9 to 11, the upper flange plate 112 and the lower flange plate 113 are aligned vertically with a certain distance therebetween. The number of the upper webs 114 is two, and the two upper webs are respectively connected to both sides of the upper flange plate 112 and perpendicular to the upper flange plate 112. The number of the lower webs 115 is two, and the two lower webs are respectively connected to both sides of the lower flange plate 113 and perpendicular to the lower flange plate 113. The upper web 114 is connected to the lower web 115 by a web flange 191.

The bottom end of the upper web 114 is recessed upward to form a first recess, the top end of the lower web 115 is recessed downward to form a second recess, and the first recess and the second recess are butted to form a first web hole 111. First web hole 111 is the fillet hole, and the welding trompil is bordured to at the fillet position welding flitch of trompil, can effectively improve the local stability of girder structure. The opening edge covering is a rectangular steel plate, is bent according to the shape of the opening of the web plate, and is welded at the opening of the web plate.

Further, the first fixed beam 11 further includes: a first fixed beam upper bulkhead 116 and a first fixed beam lower bulkhead 117 (simply referred to as an upper bulkhead 116 and a lower bulkhead 117, respectively), the upper bulkhead 116 and the lower bulkhead 117 being located within the area enclosed by the upper flange plate 112, the lower flange plate 113, the upper web 114, and the lower web 115. The upper partition 116 is vertically connected with the upper flange plate 112 and the upper web plate 114 respectively, the lower partition 117 is vertically connected with the lower flange plate 113 and the lower web plate 115 respectively, and the upper partition 116, the lower partition 117 and other plates are connected through partition flanges. The upper and lower bulkheads 116 and 117 can improve the overall stability of the beam body. Each partition plate is connected with each flange plate and the web plate in a welding mode.

Further, girder 1 still includes: and flange plate reinforcing ribs 192 connected to the inner sides of the upper flange plate 112 and the lower flange plate 113. The flange plate reinforcing ribs 192 have a "T" shape in cross section and are disposed along the entire length of the upper and lower flange plates 112 and 113 for increasing the strength of the upper and lower flange plates 112 and 113.

Girder 1 still includes: and web reinforcing ribs 193 connected to the inner sides of the upper and lower webs 113 and 114, the web reinforcing ribs 193 having a cross-section of "T" shape disposed along the entire length of the upper and lower webs 113 and 114 for improving the strength of the upper and lower webs 113 and 114.

Fig. 12 is a structural view of a second fixing beam and a second adjusting beam, and fig. 13 is a sectional view taken along line I-I of fig. 12. Fig. 12 and 13 show a schematic view of the second fixed beam 13, exemplified by the segment 108. The second fixed beam body is surrounded by a second fixed beam body upper flange plate 133, a second fixed beam body lower flange plate 134, a second fixed beam body upper web plate 135 and a second fixed beam body lower web plate 136 to form a box structure. The second fixed beam upper web 135 and the second fixed beam lower web 136 are connected through a web flange 191. The second fixed beam upper partition 137 is vertically connected to the second fixed beam upper flange plate 133 and the second fixed beam upper web plate 135, and the second fixed beam lower partition 138 is vertically connected to the second fixed beam lower flange plate 134 and the second fixed beam lower web plate 136. The second fixed beam upper partition 137 is connected to the second fixed beam lower partition 138 by a partition flange 194.

A first rail 132 is welded below the lower flange plate 134 of the second fixed beam body, and the first rail 132 is used for bearing the vertical counter force of the main supporting leg 4. In order to reinforce the joint of the first rail 132, a rail reinforcing steel plate 195 is welded between the second fixed beam lower web 136 and the second fixed beam lower flange plate 134.

Similarly, the second rail 181 is welded to the bottom of the second adjustment beam 18, and is also reinforced with a rail reinforcing steel plate.

The main beam is formed by connecting an upper flange plate, a lower flange plate, an upper web plate, a lower web plate, an upper partition plate and a lower partition plate, and the strength is improved by adopting a plurality of reinforcing ribs, so that the strength, the rigidity and the stability of the main beam meet the lifting requirement, the self weight is reduced, and the carrying capacity is improved. The thickness of the flange plate can be reduced at the position where the load of the main beam is smaller, the dead weight can be effectively reduced, raw materials are saved, and the material utilization rate is improved.

According to the scheme provided by the embodiment, the first adjusting beam body 12 and the second adjusting beam body 18 are disassembled and assembled according to the length of the simply supported beam, the requirement for erecting the simply supported beam with the length of 40 meters can be met, the requirement for erecting the simply supported beam with different spans below 40 meters can also be met, stepless adjustment is realized by adjusting the position of the rear hoisting device 3, and the simple supported beam with various lengths is adapted.

For the current development situation of railways in China, 32-meter simply supported beams and 40-meter simply supported beams coexist in a long period of time, the main beam provided by the embodiment can be used for erecting 32-meter simply supported beams and 40-meter simply supported beams, the flexibility is high, the carrying capacity is adjustable, and the construction cost of the frame transporting machine is saved.

The main beam can be produced and sold as a single product and applied to frame conveying machines with different structures.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. The utility model provides a bridge fortune frame machine girder which characterized in that includes: the first fixed beam body, the first adjusting beam body and the second fixed beam body are sequentially arranged along the longitudinal direction, and two ends of the first adjusting beam body are detachably connected with the first fixed beam body and the second fixed beam body respectively;

first web holes used for accommodating a rear lifting device in the bridge frame transporting machine and providing space for longitudinal movement of the rear lifting device are symmetrically formed in webs on two sides of the first fixed beam body, and the first web holes extend along the longitudinal direction.

2. The bridge truss machine girder of claim 1, wherein the opening of the first web hole extends to the front end of the first fixed beam body;

second web holes are symmetrically formed in the webs on the two sides of the first adjusting beam body, and the second web holes extend along the longitudinal direction; the opening of the second web hole extends to the rear end of the first adjusting beam body; the first web aperture interfaces with the second web aperture such that the rear lifting device is movable within the area formed by the first and second web apertures.

3. The bridge truss machine girder of claim 2, further comprising: and the web hole filling plate is arranged in the first web hole and/or the second web hole and is connected with the webs positioned above and below the first web hole and/or the second web hole.

4. The bridge truss machine girder of claim 1, further comprising:

and the beam body connecting assembly is used for connecting the first fixed beam body with the first adjusting beam body, the second fixed beam body with the first adjusting beam body or the first fixed beam body with the second fixed beam body.

5. The bridge frame transport machine girder of claim 4, wherein the beam body connection assembly comprises:

the outer connecting plate is positioned on the outer side of the joint of the two adjacent beam bodies and respectively has an overlapping part with the two beam bodies;

the inner connecting plate is positioned on the inner side of the joint of the two adjacent beam bodies and respectively has an overlapping part with the two beam bodies; the inner side connecting plate corresponds to the outer side connecting plate in position and is connected with the outer side connecting plate through bolts; two adjacent beam bodies are: the first fixed beam body and the first adjusting beam body, or the second fixed beam body and the first adjusting beam body, or the first fixed beam body and the second fixed beam body.

6. The main beam of the bridge frame transporting machine of claim 5, wherein each of the two adjacent beams is a box-shaped structure with a rectangular cross section;

and the four surfaces at the joints of the two adjacent beam bodies are respectively and correspondingly provided with an outer side connecting plate and an inner side connecting plate.

7. The bridge truss machine girder of claim 6, wherein the first fixed beam body comprises: an upper flange plate, a lower flange plate, an upper web plate and a lower web plate;

the two upper webs are respectively connected to two sides of the upper flange plate and are perpendicular to the upper flange plate;

the two lower webs are respectively connected to two sides of the lower flange plate and are perpendicular to the lower flange plate; the lower web plate is connected with the upper web plate through a web plate flange;

go up the bottom of web and upwards sunken first depressed part that forms, the top of web is sunken downwards down and is formed the second depressed part down, first depressed part and second depressed part butt joint form first web hole.

8. The bridge truss machine girder of claim 7, wherein the first fixed beam body further comprises: an upper partition plate and a lower partition plate; the upper partition plate and the lower partition plate are positioned in an area defined by the upper flange plate, the lower flange plate, the upper web plate and the lower web plate;

the upper partition plate is respectively and vertically connected with the upper flange plate and the upper web plate, and the lower partition plate is respectively and vertically connected with the lower flange plate and the lower web plate; the upper clapboard is connected with the lower clapboard through a clapboard flange.

9. The bridge truss machine girder of claim 7 or 8, further comprising:

the flange plate reinforcing ribs are connected to the inner sides of the upper flange plate and the lower flange plate; the section of the flange plate reinforcing rib is T-shaped and is arranged along the whole length of the upper flange plate and the lower flange plate;

the web reinforcing rib is connected with the inner side of the upper web and the inner side of the lower web; the cross section of the web reinforcing rib is T-shaped and is arranged along the whole length of the upper web and the lower web.

10. The bridge truss machine girder of claim 1, further comprising: the second adjusting beam body is detachably connected to the front end of the second fixing beam body;

and a second rail is arranged at the bottom of the second adjusting beam body and is butted with the first rail arranged at the bottom of the second fixing beam body, so that the main supporting leg in the bridge frame transporting machine can move on the first rail and the second rail.

Images