CN212688727U - Bridge erecting machine - Google Patents
Bridge erecting machine Download PDFInfo
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- CN212688727U CN212688727U CN202021336807.XU CN202021336807U CN212688727U CN 212688727 U CN212688727 U CN 212688727U CN 202021336807 U CN202021336807 U CN 202021336807U CN 212688727 U CN212688727 U CN 212688727U
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Abstract
The utility model discloses a bridge girder erection machine mainly includes: longitudinal main beam, connecting beam, cantilever beam, hoisting overhead traveling crane, walking dolly, preceding landing leg, back landing leg, balancing weight. The longitudinal girders are connected by connecting beams, the cantilever beam is installed above the longitudinal girders, and the slide rail is laid above the cantilever beam, so that the hoisting crown block can freely slide above the cantilever beam, the front end of the longitudinal girder is provided with the front support leg, and the rear end of the longitudinal girder is provided with the rear support leg. The cantilever beam is arranged above the longitudinal main beam, so that the bridge side lifting beam can be realized; the cantilever beam is provided with a balancing weight for ensuring the stability of the bridge girder erection machine during the beam lifting operation. The utility model discloses the structure is succinct, the mechanism is clear and definite, the processing of being convenient for, can effectively promote and tear roof beam open and put up roof beam efficiency.
Description
Technical Field
The utility model belongs to the technical field of bridge girder erection machine equipment, concretely relates to novel bridge girder erection machine.
Background
With the improvement of national economic strength, the traffic flow is increased year by year, and the traffic load is far higher than the design load of the current year. Meanwhile, the traffic capacity of the urban bridge is increased due to the rapid increase of the traffic flow, the urban bridge is more and more congested, and the updating of the urban bridge is very important and urgent. The main girder replacement is the main form of bridge lifting transformation, most of the urban bridges which are urgently needed to be replaced are concentrated in busy sections in the urban center at present, the buildings are dense, the roads are busy, the operation space is limited, and meanwhile, long-time traffic interruption has great pressure on urban traffic, so that the method has great significance for rapid bridge transformation construction by adopting advanced special equipment.
In order to take the factors of construction standardization, structural universality, overall stability and the like into consideration, the conventional bridge girder erection machine is generally set into a longitudinal symmetrical form, girder erection and girder disassembly operations are realized between two longitudinal main girders, the operation method is generally fixed, the construction operation process is relatively complex, the construction speed is slow, and the requirement of rapid construction of urban area lifting and reconstruction engineering cannot be met. Especially, when the large-scale lifting transformation project with operation space on the beam side is adopted, the construction period is long, and the traditional bridge girder erection machine is not economical enough. Aiming at special construction environment, the equipment is improved, so that the bridge girder erection machine equipment has stronger applicability.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the problems existing in the prior art, and provides a novel stable bridge girder erection machine capable of lifting a girder to the side. The utility model discloses mainly be applicable to the construction environment that the roof beam side has the operation space, compare with traditional bridging machine, the utility model discloses an outstanding advantage lies in structural style is simpler, has construction convenient and fast more under the scene in operation space in the roof beam side, and cantilever beam's cantilever length can adjust through setting up sliding equipment in cantilever beam below, and structural stability needs can be guaranteed according to construction environment needs adjustment balancing weight simultaneously.
In order to achieve the above object, the utility model provides a novel bridge girder erection machine structure mainly includes vertical girder, connection crossbeam, cantilever crossbeam, jack-up overhead traveling crane, walking dolly, preceding landing leg, back landing leg and balancing weight. The longitudinal main beams are mechanically connected together through a connecting beam; a cantilever beam is arranged above the longitudinal main beam, a slide rail is laid above the cantilever beam, and the hoisting overhead traveling crane can freely slide above the cantilever beam along the slide rail; the front end of the longitudinal girder is provided with a front supporting leg, the rear end of the longitudinal girder is provided with a rear supporting leg, the cantilever beam is provided with a balancing weight, and a walking trolley is arranged below the longitudinal girder.
Preferably, the cantilever beam extends out of the outer side of the longitudinal main beam, the extension length of the cantilever beam is determined according to design requirements, and the cantilever beam can realize the operation of lifting the beam outside the bridge side.
Preferably, the balancing weight is installed on one side of the cantilever beam in a mechanical connection mode and used for balancing the overall stability of the bridge girder erection machine, the weight and the installation position of the balancing weight are determined according to design requirements, and the bridge girder erection machine needs to perform anti-overturning checking calculation during girder lifting operation.
Preferably, the walking trolley is arranged below the middle part of the longitudinal main beam, so that the bridge girder erection machine can walk on the operation bridge floor.
Preferably, the bridge girder erection machine is suitable for the operation of lifting prefabricated box girders, T-shaped girders and hollow plate girders with small span of 15-30 m.
Preferably, the longitudinal main beams are composed of box beams with different lengths, and the box beams are connected by high-strength bolts.
Preferably, the cantilever beam adopts a triangular truss structure, the triangular truss structure is formed by welding profile steels, and the triangular truss structure can walk back and forth on the longitudinal main beam; a hoisting crown block is arranged above each cantilever beam, the hoisting crown block can move left and right on the cantilever beam, and a winch, a roller and a steel wire rope are arranged on the hoisting crown block.
Preferably, the front supporting leg and the rear supporting leg are both of telescopic structures, so that the bridge girder erection machine can be stretched up and down in the processes of front and rear movement and hole passing, and meanwhile, a walking system is further designed on the front supporting leg.
The utility model has the advantages that: by arranging the cantilever type cross beam, the operation of lifting the beam at the side of the bridge is realized, and the construction is more efficient under special working conditions; the counterweight block which is mechanically connected is arranged, and the counterweight can be carried out according to the design requirement, so that the integral stability of the bridge girder erection machine can be ensured; the structure form is simple, the force mechanism is clear, and the processing and the installation are convenient.
Drawings
FIG. 1 is a front cross-sectional view of a novel bridge girder erection machine;
FIG. 2 is a side view of a novel bridge girder erection machine;
FIG. 3 is a top view of a novel bridge girder erection machine;
FIG. 4 is a cross-sectional view of a longitudinal main beam;
FIG. 5 is a schematic view of a longitudinal main beam segment;
FIG. 6 is a schematic view of a cantilever beam;
FIG. 7 is a schematic view of a beam dismantling process of the novel bridge girder erection machine;
fig. 8 is a schematic diagram of a novel bridge girder erection machine via hole process.
In the figure: 1-longitudinal main beam; 2, connecting the cross beam; 3-cantilever beam; 4, a walking trolley; 5, a pulley; 6, hoisting a crown block; 7-a balancing weight; 8-front support leg; 9-rear support leg.
Detailed Description
The technical solution of the present invention will be further described in detail by the following embodiments with reference to the accompanying drawings, and the features of the present invention will be more apparent. It is to be noted that the drawings are in a very simplified form and are not to precise scale, and are provided for the purpose of facilitating and clearly aiding the description of the present invention.
Example (b): a novel bridge girder erection machine structure is shown in figures 1-3 and comprises a longitudinal main beam 1, a connecting beam 2, a cantilever beam 3, a hoisting crown block 4, a walking trolley 5, a pulley 6, a balancing weight 7, a front supporting leg 8 and a rear supporting leg 9. Vertical girder 1 and 2 mechanical connections of connecting beam, cantilever beam 3 is installed to vertical girder 1 top, the slide rail has been laid to cantilever beam 3 top, jack-up overhead traveling crane 6 can be in the free slip of cantilever beam 3 top, vertical girder 1 front end is provided with preceding landing leg 8, vertical girder 1 rear end is provided with back landing leg 9, installs balancing weight 4 on the cantilever beam 3, walking dolly 5 is installed to vertical girder 1 below.
The cantilever beam 3 extends out of the outer side of the longitudinal main beam 1, the length of the cantilever beam is determined according to design requirements, and the cantilever beam 3 can realize the operation of lifting the beam outside the bridge side. The balancing weight 7 is mechanically connected and installed on one side of the cantilever beam 3 and used for balancing the overall stability of the bridge girder erection machine, the weight and the installation position of the balancing weight 7 are determined according to design requirements, and the bridge girder erection machine needs to perform anti-overturning checking calculation during girder lifting operation. The walking trolley 5 is arranged below the middle part of the longitudinal main beam, and can realize the walking of the bridge girder erection machine on an operation bridge floor. The novel bridge girder erection machine is suitable for the operation of 15-30 m small-span precast box girders, T girders and hollow plate girder lifting.
As shown in fig. 4-5, the longitudinal main beam 1 is composed of box beams with different lengths, and each section is connected by high-strength bolts.
As shown in fig. 6, the cantilever beams 3 adopt triangular trusses, the triangular trusses are formed by welding profile steels, the triangular trusses can walk on a longitudinal main beam front and back, a hoisting crown block 6 is arranged above each cantilever beam 3, the hoisting crown block 6 can move left and right on the cantilever beams 3, and a winch, a roller and a steel wire rope are arranged on the hoisting crown block 6 and used for hoisting operation.
In addition, preceding landing leg 8 and back landing leg 9 all design for telescopic, ensure that the bridge girder erection machine can stretch out and draw back from top to bottom with the in-process of via hole in the front and back removal, preceding landing leg 8 still designs simultaneously has traveling system for the bridge girder erection machine via hole.
In order to solve the problems, the utility model also provides a novel bridge girder erection machine beam lifting method and a hole passing method, wherein the method comprises the following steps, as shown in fig. 7-8.
The girder lifting method of the bridge girder erection machine is described as follows:
s1: the two hoisting crown blocks 6 are respectively stopped at the set positions of the cantilever beam 3, the hook is hooked at the end part of the beam plate to be disassembled, the two beam plates are lifted to the set height, and the set positions and the set height are determined according to the operation requirements;
s2: the hoisting crown block 6 is transversely moved along the cantilever beam 3 for a set distance, so that the beam plate to be disassembled is moved out of the bridge span position, and the set distance is determined according to the operation requirement;
s3: the hoisting crown block 6 is placed down to the beam plate to be dismantled.
The bridge girder erection machine via hole method is described as follows:
s1: 2 groups of cantilever beams 3 of the bridge girder erection machine all walk and stop at the front end of the longitudinal main girder 1.
S2: the rear leg 9 is retracted by one segment;
s3: the bridge girder erection machine walks forwards on the undetached beam plates to the position of the next section of the removed beam plates through the walking system below the front supporting legs 8.
S4: the rear legs 8 extend out and are supported on the bent cap.
S5: and moving the main beam backwards to the position above the beam plate to be dismantled, and preparing for dismantling the next hole beam plate.
In summary, in the novel bridge girder erection machine structure provided by the embodiment, the cantilever type cross beam is arranged, so that the bridge side girder lifting operation is realized, and the application range of the bridge girder erection machine is expanded; the counterweight block which is mechanically connected is arranged, and the counterweight can be carried out according to the design requirement, so that the integral stability of the bridge girder erection machine can be ensured; the structural form is simple, the stress mechanism is clear, and the processing and the installation are convenient; and the cost can be reduced, and the construction efficiency is improved.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (8)
1. A bridging machine, its characterized in that: the device comprises a longitudinal main beam, a connecting beam, a cantilever beam, a hoisting crown block, a walking trolley, a front supporting leg, a rear supporting leg and a balancing weight; the longitudinal main beams are mechanically connected together through a connecting beam; a cantilever beam is arranged above the longitudinal main beam; a slide rail is laid above the cantilever beam, and the hoisting crown block can freely slide above the cantilever beam along the slide rail; the front end of the longitudinal girder is provided with a front supporting leg, the rear end of the longitudinal girder is provided with a rear supporting leg, the cantilever beam is provided with a balancing weight, and the walking trolley is arranged below the longitudinal girder.
2. A bridge erecting machine as defined in claim 1, wherein: the cantilever beam extends out of the outer side of the longitudinal main beam, the extending length of the cantilever beam is determined according to design requirements, and the cantilever beam can realize the operation of lifting the beam outside the bridge side.
3. A bridge erecting machine as defined in claim 1, wherein: the balancing weight is installed on one side of the cantilever beam through mechanical connection, and the weight and the installation position of the balancing weight are determined according to design requirements.
4. A bridge erecting machine as defined in claim 1, wherein: the walking trolley is arranged below the middle part of the longitudinal main beam.
5. A bridge erecting machine as defined in claim 1, wherein: the bridge girder erection machine is suitable for lifting of 15-30 m small-span prefabricated box girders, T-shaped girders and hollow plate girders.
6. A bridge erecting machine as defined in claim 1, wherein: the longitudinal main beam is composed of box beams with different lengths, and the box beams are connected by high-strength bolts.
7. A bridge erecting machine as defined in claim 1, wherein: the cantilever beam adopts a triangular truss structure, the triangular truss structure is formed by welding profile steels, and the triangular truss structure can walk back and forth on the longitudinal main beam; a hoisting crown block is arranged above each cantilever beam, the hoisting crown block can move left and right on the cantilever beam, and a winch, a roller and a steel wire rope are arranged on the hoisting crown block.
8. A bridge erecting machine as defined in claim 1, wherein: the front supporting leg and the rear supporting leg are of telescopic structures, so that the bridge girder erection machine can stretch up and down in the processes of front and rear movement and hole passing, and meanwhile, the front supporting leg is provided with a walking system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021336807.XU CN212688727U (en) | 2020-07-09 | 2020-07-09 | Bridge erecting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021336807.XU CN212688727U (en) | 2020-07-09 | 2020-07-09 | Bridge erecting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212688727U true CN212688727U (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021336807.XU Active CN212688727U (en) | 2020-07-09 | 2020-07-09 | Bridge erecting machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN212688727U (en) |
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2020
- 2020-07-09 CN CN202021336807.XU patent/CN212688727U/en active Active
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