CN219731705U - Mid-span folding device of rotary groove-shaped continuous beam for business line of electrified railway - Google Patents

Abstract

The utility model discloses a bridge middle-span closure device of a rotary groove-shaped continuous beam for a business line of an electrified railway, which comprises a bridge body of the continuous beam after butt joint of rotary bodies, wherein a plurality of groups of embedded steel plates are arranged on the Liang Tibiao surface, stiff frameworks are welded between the embedded steel plates, jacking devices are arranged on the inner sides of two ends of the stiff frameworks, each jacking device comprises a sleeve with internal threads and threaded ejector rods on two sides of the sleeve, an adjusting threaded rod penetrates through the middle position of the sleeve, gaskets are arranged below the adjusting threaded rod, temporary constraint plates are arranged on the two sides of the bottom surface of the outer end of the bridge body, and a plurality of slings are connected to the outer ends of the temporary constraint plates in a surrounding mode and connected to a lifting drum. The folding device is mainly used for restraining two sides of the beam body and is matched with the stiffness framework, so that continuous Liang Zhongduan dislocation is further reduced, and pouring quality of the folding section bridge is improved.

Description

Mid-span folding device of rotary groove-shaped continuous beam for business line of electrified railway

Technical Field

The utility model relates to the technical field of bridge construction equipment, in particular to a mid-span closure device for a rotary groove-shaped continuous beam of a business line of an electrified railway.

Background

In recent years, along with the rapid development of society, railway networks and highway networks are rapidly built, crossing construction is increasingly increased in the process of power transmission line construction, and high safety risks exist, and a complete construction scheme is required to be formulated for safety control, so that prefabrication is carried out on two sides of a parallel line, then a swivel is folded to reduce construction difficulty, construction risks are reduced, and swivel beam construction is mainly swivel structure construction and folding section construction.

For the construction of the folding section, a common hanging bracket is used for constructing the folding beam section of a midspan in the prior art, the hanging bracket is installed on a No. 26 pier in front of a turning body of a channel beam in the installation operation, a matched slideway is installed, a winch is installed at the position of the middle span beam end of the No. 27 pier, in the casting process, a stiff framework is generally adopted to connect two end beam bodies, the clearance of the folding section is ensured, continuous Liang Zhongduan dislocation is prevented, and the balance effect of the stiff framework is insufficient in practical construction, so that the casting quality is reduced.

Disclosure of Invention

The utility model aims to provide a mid-span closure device for a rotary groove-shaped continuous beam of a business line of a cross electrified railway, which is mainly used for restraining two sides of a beam body and is matched with a stiffness framework to further reduce the dislocation of a continuous Liang Zhongduan and improve the pouring quality of a closure section bridge.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a stride continuous roof beam midspan of electrified railway business line groove shape and close device, includes the continuous roof beam body after turning the butt joint, liang Tibiao face be equipped with a plurality of groups of pre-buried steel sheet, pre-buried steel sheet between all weld the strength nature skeleton, strength nature skeleton both ends inboard all be equipped with the tight device in top, the tight device in top including the sleeve that has the internal thread and the screw thread ejector pin of sleeve both sides, sleeve intermediate position department run through and have the regulation threaded rod, regulation threaded rod below be equipped with the gasket, the outside bottom surface both sides position department of roof beam all be equipped with the temporary restraint board, the outside end of temporary restraint board encircle and be connected with a plurality of slings, the sling be connected to and carry and draw on the reel, carry and draw the reel to install in roof beam body upper position department through drive mechanism, roof beam body surface still have two parallel concave frame that fall the hoist cable, two parallel concave frame inside hollow region left side or right side all encircle and pass and draw on the reel that draws the opposite side through crisscross the hoist cable.

Further, the outer end of the threaded ejector rod is tightly propped against the inner side surface of the stiff framework, and the inner end of the threaded ejector rod is screwed into the sleeve.

Further, the temporary constraint plate is attached to two sides of the bottom surface of the outer end of the beam body in a shape and extends outwards for 0.3-0.5 meter.

Further, the transmission mechanism comprises an upper mounting clamp plate and a lower mounting clamp plate, the upper mounting clamp plate and the lower mounting clamp plate are fixedly clamped on the beam body through bolt connecting rods at two sides, a supporting plate and a supporting cylinder are respectively arranged at one side and the middle position of the upper mounting clamp plate, the supporting plate and the supporting cylinder are in transmission connection with one side and the middle position of a central rotating shaft of the lifting winding drum through rotating bearings, and the other side of the central rotating shaft of the lifting winding drum is in transmission connection with an output shaft of a rotating motor through a transmission chain.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model is provided with the jacking device. The lifting winding drum, the temporary constraint plates and other structures can further constrain the stiff framework in the mid-span closure construction process of the rotary groove-shaped continuous beam, and simultaneously constrain two sides of the beam body, so that the dislocation of the continuous Liang Zhongduan beam is further reduced, and the pouring quality of the closure section bridge is improved.

Drawings

FIG. 1 is a schematic view of the installation structure of the folding device of the present utility model;

FIG. 2 is a schematic view of a temporary restraint panel structure of the present utility model;

FIG. 3 is a schematic view of the structure of the tightening device of the present utility model;

in the figure: 1. a beam body; 2. a stiff skeleton; 3. a rotating motor; 4. a clamping plate; 5. a bolt connecting rod; 6. a support plate; 7. pulling the winding drum; 8. a sling; 9. a support cylinder; 10. a temporary restraint plate; 11. embedding a steel plate; 12. an inverted concave frame; 13. adjusting a threaded rod; 14. a sleeve; 15. a gasket; 16. a threaded ejector rod.

Detailed Description

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

As shown in fig. 3, the surface of a beam body 1 in the prior art is provided with a plurality of groups of embedded steel plates 11, a stiff framework 2 is welded between the embedded steel plates 11, the inner sides of two ends of the stiff framework 2 are respectively provided with a jacking device, the jacking devices comprise a sleeve 14 with internal threads and threaded ejector rods 16 at two sides of the sleeve 14, an adjusting threaded rod 13 penetrates through the middle position of the sleeve 14, a gasket 15 is arranged below the adjusting threaded rod 13, two parallel inverted concave frames 12 are embedded on the surface of the beam body 1, and the left side or the right side of a hollow area inside the two parallel inverted concave frames 12 are all wound around a lifting winding drum 7 penetrating through a sling 8 and connected to the other side in a staggered manner through the sling 8;

as shown in fig. 2, temporary constraint plates 10 are arranged at two sides of the bottom surface of the outer end of the beam body 1, and the temporary constraint plates 10 are attached to two sides of the bottom surface of the outer end of the beam body 1 in a shape and extend outwards for 0.3-0.5 m;

as shown in fig. 1, the outer end of the temporary restraint plate 10 is connected with a plurality of slings 8 in a surrounding manner, the slings 8 are connected to a lifting reel 7, and the lifting reel 7 is arranged at the upper position of the beam body 1 through a transmission mechanism;

for the transmission mechanism, as shown in fig. 1, an embodiment is provided in the utility model, the transmission mechanism comprises an upper mounting clamping plate 4 and a lower mounting clamping plate 4, the upper mounting clamping plate 4 and the lower mounting clamping plate 4 are fixedly clamped on a beam body 1 through bolt connecting rods 5 on two sides, a supporting plate 6 and a supporting cylinder 9 are respectively arranged on one side and the middle position of the upper mounting clamping plate 4, the supporting plate 6 and the supporting cylinder 9 are in transmission connection with one side and the middle position of a central rotating shaft of a lifting drum 7 through rotating bearings, the other side of the central rotating shaft of the lifting drum 7 is in transmission connection with an output shaft of a rotating motor 3 through a transmission chain, and a protection shell is arranged outside the transmission chain.

Before the actual pouring construction, after the stiffening skeleton 2 is welded between the embedded steel plates 11, constructors can firstly install the jacking device, so that the lower gasket 15 is jacked on the surface of the beam body 1, meanwhile, the threaded ejector rods 16 on two sides are rotationally jacked on the inner side surfaces of the stiffening skeleton 2 on two sides, then all slings 8, a transmission mechanism and lifting drums 7 are installed and connected, the temporary constraint plate 10 and the inverted concave frame 12 are restrained upwards, and the beam body to be folded after the swivel is further restrained stably.

The specific connection modes of all parts used in the utility model adopt conventional means such as mature bolts, rivets, welding and the like in the prior art, and the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a stride electric railway business line groove-shaped continuous beam midspan and close device that turns, includes the continuous beam body after turning the butt joint, liang Tibiao face be equipped with a plurality of groups of pre-buried steel sheet, pre-buried steel sheet between all weld have the strength nature skeleton, its characterized in that: the utility model provides a lifting device, including the sleeve that has the internal thread and the screw thread ejector pin of sleeve both sides, sleeve intermediate position department run through and have the regulation threaded rod, regulation threaded rod below be equipped with the gasket, the external end bottom surface both sides position department of roof beam all be equipped with interim restraint board, interim restraint board outer ring around being connected with a plurality of slings, the hoist cable be connected to and carry and draw on the reel, carry and draw the reel and install in roof beam body top position department through drive mechanism, the roof beam body surface still pre-buried have two parallel inverted concave frame, two parallel inverted concave frame in cavity district left side or right side all encircle and pass the hoist cable and draw on the reel of hoist cable staggered connection to the opposite side through the hoist cable.

2. The mid-span closure device for a swivel trough-shaped continuous beam across an electrified railway business line according to claim 1, wherein the mid-span closure device comprises: the outer end of the threaded ejector rod is tightly propped against the inner side surface of the stiff framework, and the inner end of the threaded ejector rod is screwed into the sleeve.

3. The mid-span closure device for a swivel trough-shaped continuous beam across an electrified railway business line according to claim 1, wherein the mid-span closure device comprises: the temporary constraint plates are attached to two sides of the bottom surface of the outer end of the beam body in a shape and extend outwards for 0.3-0.5 m.

4. The mid-span closure device for a swivel trough-shaped continuous beam across an electrified railway business line according to claim 1, wherein the mid-span closure device comprises: the transmission mechanism comprises an upper installation clamp plate and a lower installation clamp plate, the upper installation clamp plate and the lower installation clamp plate are fixedly clamped on a beam body through bolt connecting rods on two sides, a supporting plate and a supporting cylinder are respectively arranged on one side and the middle position of the upper installation clamp plate, the supporting plate and the supporting cylinder are in transmission connection with one side and the middle position of a central rotating shaft of the lifting winding drum through rotating bearings, and the other side of the central rotating shaft of the lifting winding drum is in transmission connection with an output shaft of a rotating motor through a transmission chain.