CN221218531U - Asymmetric space linear Y-shaped steel structure installation equipment - Google Patents

Abstract

The application relates to the technical field of bridge construction and discloses asymmetric space linear Y-shaped steel structure installation equipment which comprises at least two groups of hoisting assemblies distributed along the length direction of a section, wherein each group of hoisting assemblies comprises a hoisting beam, and the hoisting beam is hoisted and moved to a cable; and the movable sling is sleeved on the hanging beam and moves along the length direction of the hanging beam, and is used for connecting the sections. The application can improve the efficiency of aligning and connecting the sections of the steel structure rod piece during construction.

Description

Asymmetric space linear Y-shaped steel structure installation equipment

Technical Field

The application relates to the technical field of bridge construction, in particular to asymmetric space linear Y-shaped steel structure installation equipment.

Background

Currently, there is a tie-bar arch bridge with a main span formed by a pair of "Y" shaped rigid frame side spans and a steel box basket arch midspan, three relatively separated sub-structures connected by midspan and side span tie bars, the Y-structure being typically a prestressed concrete structure. The side span Y structure related by the technology consists of a concrete combination section and a steel box girder structure. The Y-shaped steel structure is formed by inwards inclined steel box members which are respectively far away from the pier body along the axle axis of the pier body by the concrete combination section at the top of the pier body, and the steel structure sections facing the midspan and the side span are different in length, weight and inclination angle, and are generally hoisted and installed by adopting a cable crane in a narrow mountain river.

The steel box member is divided into a plurality of sections during construction, the sections are hoisted one by one through a cable rope matched with a lifting appliance, and the sections are sequentially spliced and welded to form a bridge span structure. The existing lifting appliance for lifting the section is usually formed by connecting a lifting hook with a movable trolley on a cable through a sling, connecting a steel section with the lifting hook through the sling fixed on the lifting hook, driving the section to move to a mounting position through the movable trolley, and adjusting the length of the sling between the movable trolley and the lifting hook so as to lift or lower the section.

The existing cables are generally distributed along the length direction of the bridge, but the midspan of the Y-shaped steel bridge is in a basket shape and has a tendency of inclining inwards relative to the length direction of the bridge from the end part to the middle part, so that the sections are lifted by the existing lifting appliance, the sections are not easy to incline during lifting, the positions of the sections are often required to be adjusted when the sections are lowered to the installation position, and the time delay caused by difficult alignment connection between the sections is caused.

Disclosure of utility model

In order to improve the efficiency of alignment connection between sections of a steel structure rod piece during construction, the application provides asymmetric space linear Y-shaped steel structure installation equipment.

The application provides asymmetric space linear Y-shaped steel structure installation equipment, which adopts the following technical scheme:

An asymmetric space linear Y-shaped steel structure installation device comprises at least two groups of hoisting components distributed along the length direction of a section, each group of hoisting components comprises,

A hanging beam which is hung and moved to the cable;

And the movable sling is sleeved on the hanging beam and moves along the length direction of the hanging beam, and is used for connecting the sections.

Through adopting above-mentioned technical scheme, with hoist and mount subassembly along cable length direction distribution, adjust on the hanging beam and remove the hoist cable position to on being connected to the section along section length direction with the removal hoist cable on the different hoist and mount subassemblies, make section hoist and mount back incline direction unanimous with setting up incline direction, drive the section again and remove to the mounted position, can align with the installed section fast when making the section arrive the mounted position, improve the efficiency of construction.

Optionally, an adjusting member is connected between the hanging beam and one side of the segment, and the length of the adjusting member can be adjusted.

Through adopting above-mentioned technical scheme, pulling section one side through the regulating part, can adjusting the internal inclination of the relative both sides of section.

Optionally, the mobile sling includes,

A sleeve joint rope sleeved on the hanging beam;

the pulley seat is used for connecting the sleeve ropes and is provided with a steering wheel;

The connecting rope is wound and hung on the steering wheel, and two ends far away from each other are respectively connected to two opposite sides of the section.

Through adopting above-mentioned technical scheme, can make the position of connecting rope take place to remove along with the slope between the opposite both sides of section through the removal of connecting rope relative steering wheel to improve the stability that the section was hung to the removal hoist cable.

Optionally, the adjusting piece comprises a chain block, and the chain block is hung between the hanging beam and the section.

Optionally, the steering wheel is connected to the pulley mount.

By adopting the technical scheme, the steering wheel rotates on the pulley seat to reduce the friction force when the connecting rope moves.

Optionally, a connector is provided between the mobile sling and the segment, the connector comprising,

The lifting lug is arranged on the section;

the connecting buckle is connected to the movable sling and is provided with a space for the lifting lug to extend into;

and one end of the threaded part penetrates through the lifting lug and is connected to the connecting buckle in a threaded manner.

Through adopting above-mentioned technical scheme, can make the lug link to each other or separate with the connector link fast through threaded connection of screw portion and connector link.

Optionally, the sleeve cable is connected with a sliding seat sliding on the hanging beam, the hanging beam is provided with a sliding groove for sliding the sliding seat along the length direction of the hanging beam, and a moving stopping piece for limiting the sliding seat is arranged between the sliding seat and the hanging beam.

By adopting the technical scheme, the sliding seat is limited by the sliding stopping piece so as to limit the movement of the sleeve cable relative to the hanging beam, thereby improving the stability of the sleeve cable after moving on the hanging beam.

Optionally, the anti-moving part comprises a first positioning tooth, a moving part, a second positioning tooth and an adjusting part, wherein the first positioning tooth is distributed in the chute along the length direction of the hanging beam, the moving part slides on the sliding seat, the second positioning tooth is arranged on one side of the moving part opposite to the first positioning tooth, and the adjusting part is in threaded movement on the moving part and is in rotary connection with the moving part so as to drive the moving part to move to the first positioning tooth to be meshed with or separated from the second positioning tooth.

Through adopting above-mentioned technical scheme, through adjusting part screw thread removal, make the removal of moving part to second positioning tooth in first positioning tooth meshing, make sliding seat and hanging beam relative positioning to carry out spacingly to the cable that cup joints.

In summary, the application has the following beneficial effects:

The sections are hoisted together through the plurality of groups of hanging beams, and the positions of the movable slings in the length direction of the hanging beams are adjusted, so that the sections can be inclined to a design value, and the efficiency of aligning and connecting the sections of the steel structure rod piece during construction is improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present application;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at C in FIG. 1;

Fig. 5 is a schematic view of a sliding seat structure according to an embodiment of the application.

Reference numerals illustrate: 1. hoisting the assembly; 2. a hanging beam; 3. moving the sling; 31. sleeving a cable; 32. a connecting rope; 33. a pulley seat; 4. an adjusting member; 41. chain block; 5. a steering wheel; 6. a connecting piece; 61. lifting lugs; 62. a connecting buckle; 63. a threaded portion; 7. a sliding seat; 71. a moving block; 72. a limiting block; 8. a chute; 81. a first groove; 82. a second groove; 9. a movement stop; 91. a first positioning tooth; 92. a moving part; 93. a second positioning tooth; 94. an adjusting section; 10. a fifth wheel; 11. an adjusting cable; 12. hanging ropes; 13. a moving chamber; 14. a connection hole; 15. segments.

Detailed Description

The application is described in further detail below with reference to fig. 1-5.

The embodiment of the application discloses an asymmetric space linear Y-shaped steel structure installation device. Referring to fig. 1, the installation device of the asymmetric space linear Y-shaped steel structure comprises at least two groups of hoisting assemblies 1, wherein the hoisting assemblies 1 are distributed along the length direction of a cable, each group of hoisting assemblies 1 corresponds to a mobile trolley (not shown in the figure) moving on the cable, and the mobile trolley is connected with the hoisting assemblies 1 through slings to drive the hoisting assemblies 1 to be pulled up or pulled down.

Referring to fig. 1 and 2, each group of the hoist assemblies 1 includes a hoist beam 2 and a moving sling 3, the hoist beam 2 is in a square elongated shape, and the moving trolley is connected to two ends of the hoist beam 2 far from each other through the sling. The cables are distributed along the length of the bridge, and the length of the hanging beam 2 extends along the horizontal direction and is perpendicular to the length direction of the cables. The movable sling 3 is sleeved on the hanging beam 2, so that the movable sling 3 can move on the hanging beam 2 along the length direction of the hanging beam 2. The bottom end of the travelling slings 3 is used to connect the segments 15 to be mounted.

In this embodiment, the lifting assemblies 1 are arranged in two groups, and when in use, the movable slings 3 of the two groups of lifting assemblies 1 are moved on the lifting beam 2, and then two ends of the sections 15, which are far away from each other, are respectively connected to the movable slings 3 of the two groups of lifting assemblies 1, so that the front ends of the sections 15 incline inwards relative to the rear ends of the sections 15, and the inclination direction of the sections 15 can be adjusted by adjusting the positions of the movable slings 3 relative to the lifting beam 2.

Referring to fig. 1 and 3, the y-section steel structure is designed as an inwardly inclined basket type, even if the segments 15 need to be inclined with respect to the horizontal on opposite sides when installed, even if the segments 15 are inclined with respect to the horizontal. In order to adapt to the inward inclination angle of the section 15, an adjusting piece 4 is connected between the hanging beam 2 and the outer side of the section 15, the adjusting piece 4 comprises a chain block 41 hung between the hanging beam 2 and the outer side of the section 15, the outer side of the section 15 is inclined upwards relative to the inner side by adjusting the chain block 41, and the distance between the hanging beam 2 and the inner side of the section 15 is adjusted, so that the section 15 can trend towards different angles.

Further, the traveling hoist rope 3 includes a socket rope 31, a connecting rope 32, and a pulley block 33. The sleeve cable 31 is sleeved and moved on the hanging beam 2, the sleeve cable 31 is connected end to end, and the bottom of the sleeve cable 31 naturally sags to the pulley seat 33 for connection. The pulley seat 33 has a fifth wheel 10 and a steering wheel 5, the fifth wheel 10 is located on the upper side of the steering wheel 5, and the sleeve cable 31 is wound around the fifth wheel 10 to connect with the pulley seat 33. The steering wheel 5 is rotatably connected to the pulley seat 33, the connecting rope 32 is wound around and hung on the steering wheel 5, and two ends of the connecting rope 32, which are far away from each other, are respectively connected to two opposite sides of the segment 15.

When the chain block 41 is adjusted, the connecting rope 32 moves on the steering wheel 5, and the segment 15 straightens the connecting rope 32 under the action of self gravity, so that the segment 15 is not easy to change the inward inclination angle during hoisting.

Referring to fig. 1 and 2, furthermore, there is a connection 6 between the connecting cord 32 and the segment 15, so that the connecting cord 32 is quickly and detachably connected to the segment 15. Specifically, the connecting member 6 includes a connecting shackle 61, a connecting buckle 62, and a threaded portion 63. The connecting buckles 62 are respectively connected to the two ends of the connecting rope 32 far away from each other, the lifting lugs 61 are welded on the two opposite sides of the section 15, and the lifting lugs 61 on the two sides of the section 15 respectively correspond to the connecting buckles 62 on the two ends of the connecting rope 32.

The connecting buckle 62 is U-shaped, has a space for the lifting lug 61 to extend in, the threaded portion 63 is in a stud shape, a through hole for the threaded portion 63 to penetrate is formed in the lifting lug 61, a through hole for the threaded portion 63 to penetrate is formed in one end of the connecting buckle 62, and a threaded hole for the threaded portion 63 to be connected is formed in the other end of the connecting buckle 62. After the lifting lug 61 stretches into the connecting buckle 62, the connecting buckle 62 sequentially penetrates through one end of the connecting buckle 62 and the lifting lug 61, and the connecting buckle 62 is in threaded connection with the other end of the connecting buckle 62, so that the connecting buckle 62 is quickly connected with the lifting lug 61, and the connecting rope 32 and the section 15 are connected.

In order to facilitate the corresponding change of the position of the chain block 41 when the movable sling 3 moves on the hanging beam 2, the hanging beam 2 is sleeved with an adjusting rope 11; the connecting buckle 62 of the connecting rope 32 opposite to the outer side of the segment 15 is connected with the hanging rope 12, and the adjusting rope 11 and the hanging rope 12 are connected and closed end to end. The upper and lower ends of the chain block 41 are provided with hooks, the upper hook of the chain block 41 is hung on the adjusting rope 11, and the hanging rope 12 is hung on the lower hook of the chain block 41. Thus, when the movable slings 3 move relative to the hanging beam 2, the adjusting rope 11 moves on the hanging beam 2, so that the position of the chain block 41 can be adapted to the position of the movable slings 3.

Referring to fig. 1 and 4, further, in order to improve stability of the moving sling 3 after moving to a designated position on the hanging beam 2, a sliding seat 7 slidably engaged with the hanging beam 2 is connected to the hanging beam, and a moving stop 9 for positioning the sliding seat 7 relative to the hanging beam 2 is provided between the sliding seat 7 and the hanging beam 2 to limit movement of the connecting cable 31 along a length direction relative to the hanging beam 2.

Referring to fig. 4 and 5, specifically, the sliding seat 7 includes a moving block 71 and a stopper 72, the moving block 71 is square, and a sling is slidably disposed through the moving block 71. The limiting block 72 is square with a size smaller than that of the moving block 71, and is fixed on the upper side and the lower side of the moving block 71 respectively. The opposite sides of the hanging beam 2 are matched with sliding seats 7, sliding grooves 8 for sliding the sliding seats 7 along the length direction of the hanging beam 2 are formed in the side wall of the hanging beam 2, each sliding groove 8 comprises a first groove 81 and a second groove 82, the first groove 81 is formed in the side wall of the hanging beam 2 and used for sliding the movable block 71, and the second groove 82 is formed in the upper inner wall and the lower inner wall of the first groove 81 and used for sliding the limiting block 72 so as to limit the sliding seats 7 to be separated from the hanging beam 2 along the length direction perpendicular to the hanging beam 2.

The stopper 9 includes a first positioning tooth 91, a moving portion 92, a second positioning tooth 93, and an adjusting portion 94. The first positioning teeth 91 are distributed on the inner side wall of the first groove 81 along the length extending direction of the hanging beam 2. The moving part 92 is square, the moving part 92 slides in the moving block 71 along the direction vertical to the length direction of the hanging beam 2, and a moving cavity 13 for sliding the moving part 92 is formed on one side of the moving block 71 facing the inside of the hanging beam 2. The second positioning teeth 93 are fixed on a side of the moving portion 92 facing the first positioning teeth 91, and when the side of the moving block 71 close to the second positioning teeth 93 moves out of the moving block 71, the second positioning teeth 93 can be driven to engage with the first positioning teeth 91.

The adjusting part 94 is in a stud shape, the moving block 71 is provided with a connecting hole 14 for the adjusting part 94 to move in a threaded manner, the connecting hole 14 is positioned on one side of the moving block 71 far away from the first positioning tooth 91 and is communicated with the moving cavity 13, the moving direction of the adjusting part 94 in the moving direction of the moving part 92 is consistent, one end of the adjusting part 94 close to the first positioning tooth 91 is rotatably connected to the moving part 92 through a bearing, and the moving part 92 is driven to move relative to the moving block 71 through the threaded movement of the adjusting part 94.

Referring to fig. 4 and 5, when the socket cable 31 needs to be limited, the screw movement adjusting part 94 makes the second positioning teeth 93 protrude out of the moving block 71 to engage with the second positioning teeth 93, so as to limit the movement of the sliding seat 7 relative to the hanging beam 2. When the socket cable 31 needs to be moved on the hanging beam 2, the threaded movement adjusting part 94 enables the second positioning teeth 93 to be stored back in the movement cavity 13 and separated from the first positioning teeth 91, i.e. the sliding seat 7 can be slid relative to the hanging beam 2.

The implementation principle of the asymmetric space linear Y-shaped steel structure installation equipment provided by the embodiment of the application is as follows: the movable slings 3 are moved on the hanging beams 2, the front section and the rear section of the section 15 are respectively hoisted on the movable slings 3 of the two hanging beams 2, the front section of the section 15 is inclined inwards relative to the rear end, then the inclination angles of the two opposite sides of the section 15 are adjusted through the chain block 41, the inner side of the section 15 is inclined downwards relative to the outer side of the section 15, the hanging beams 2 are driven to move to the installation position through the movable trolley on the cable, and the hanging beams 2 are placed to the installation position for installation under the inclined state.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (8)

1. An asymmetric space linear Y-shaped steel structure installation device is characterized in that: comprises at least two groups of hoisting assemblies (1) distributed along the length direction of the segment (15), wherein each group of hoisting assemblies (1) comprises,

A hanging beam (2) which is hung and moved to the cable;

And the movable sling (3) is sleeved on the hanging beam (2) and moves along the length direction of the hanging beam (2) for connecting the sections (15).

2. The asymmetric space linear Y-shaped steel structure mounting apparatus of claim 1, wherein: an adjusting piece (4) is connected between the hanging beam (2) and one side of the section (15), and the length of the adjusting piece (4) can be adjusted.

3. An asymmetrical spatial linear Y-shaped steel structure mounting apparatus as set forth in claim 2 wherein: the mobile sling (3) comprises,

A sleeve joint rope (31) sleeved on the hanging beam (2);

the pulley seat (33) is used for connecting the sleeve ropes (31) and is provided with a steering wheel (5);

The connecting rope (32) is wound and hung on the steering wheel (5), and two mutually-far ends are respectively connected with two opposite sides of the section (15).

4. An asymmetrical spatial linear Y-shaped steel structure mounting apparatus as set forth in claim 2 wherein: the adjusting piece (4) comprises a chain block (41), and the chain block (41) is hung between the hanging beam (2) and the section (15).

5. An asymmetrical spatial linear Y-shaped steel structure mounting apparatus as set forth in claim 3 wherein: the steering wheel (5) is rotatably connected to the pulley seat (33).

6. The asymmetric space linear Y-shaped steel structure mounting apparatus of claim 1, wherein: a connecting piece (6) is arranged between the movable sling (3) and the segment (15), the connecting piece (6) comprises,

A lifting lug (61) arranged on the segment (15);

A connecting buckle (62) connected to the movable sling (3) and provided with a space for the lifting lug (61) to extend into;

and a threaded part (63) one end of which passes through the lifting lug (61) and is connected to the connecting buckle (62) in a threaded manner.

7. An asymmetrical spatial linear Y-shaped steel structure mounting apparatus as set forth in claim 3 wherein: the sliding seat (7) sliding on the hanging beam (2) is connected to the sleeve joint rope (31), the hanging beam (2) is provided with a sliding groove (8) for sliding the sliding seat (7) along the length direction of the hanging beam, and a moving stopping piece (9) limiting the sliding seat (7) is arranged between the sliding seat (7) and the hanging beam (2).

8. The asymmetric space linear Y-shaped steel structure mounting apparatus of claim 7, wherein: the anti-moving part (9) comprises a first positioning tooth (91), a moving part (92), a second positioning tooth (93) and an adjusting part (94), wherein the first positioning tooth (91) is distributed in the sliding groove (8) along the length direction of the hanging beam (2), the moving part (92) slides on the sliding seat (7), the second positioning tooth (93) is arranged on one side of the moving part (92) opposite to the first positioning tooth (91), and the adjusting part (94) is in threaded movement on the moving part (92) and is in rotary connection with the moving part (92) so as to drive the moving part (92) to move to the first positioning tooth (91) to be meshed with or separated from the second positioning tooth (93).