Walking type double-guide-beam bridge girder erection machine for overhead construction

Abstract

The utility model relates to the technical field of bridge construction, in particular to a walking type double-guide-beam bridge girder erection machine for overhead construction. According to the walking type double-guide-beam bridge girder erection machine for volley construction, a steel trestle can be conveniently moved between bridge piers, repeated disassembly and assembly are not needed, the number of bridge erection construction processes is reduced, and the construction efficiency is improved. A walking type double-guide-beam bridge girder erection machine for volley construction comprises a front steel trestle bridge and a rear steel trestle bridge, supporting legs and the like, and the supporting legs are connected to the lower sides of the left portion and the right portion of each steel trestle bridge. After a single bridge frame is installed, the hydraulic telescopic base is started, the hydraulic telescopic base moves downwards to jack up the steel trestle, then the steel trestle is pushed to slide, and the steel trestle is moved to the position between piers of a next bridge frame to be installed, so that the purposes that the steel trestle can be conveniently moved between the piers, and the bridge frame can be conveniently installed are achieved. And repeated disassembly and assembly are not needed, the process of bridging construction is reduced, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field especially relates to a step formula double guide beam bridge erecting machine for construction in midair. BACKGROUND

[0002] With the continuous improvement of urbanization construction level, the traffic infrastructure construction such as highway and railway has become an indispensable part in social development, and in these projects, bridge construction is a crucial link, and the step formula bridge erecting machine has the remarkable advantages of fast construction speed, high efficiency, small environmental pollution, low labor cost and high construction safety.

[0003] The existing step formula bridge erecting machine erects the bridge process usually by installing the support rod to the pier, and then suspending the bridge deck on the support rod through the movement of the bridge erecting machine to carry out construction, but since the existing bridge erecting machine needs to be removed and moved to the next bridge deck to carry out the bridge erecting task when erecting the next bridge deck, the bridge erecting process is relatively cumbersome and inefficient.

[0004] Therefore, the step formula double guide beam bridge erecting machine for construction in midair which can facilitate the movement of the steel trestle between the piers, does not need to be repeatedly disassembled and assembled, reduces the bridge erecting process and improves the construction efficiency is developed. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the shortcomings of the existing step formula bridge erecting machine erecting the bridge process, the bridge erecting machine needs to be repeatedly disassembled to adapt to the installation of multiple bridge decks, resulting in a relatively cumbersome construction process and low efficiency, the utility model provides a step formula double guide beam bridge erecting machine for construction in midair which can facilitate the movement of the steel trestle between the piers, does not need to be repeatedly disassembled and assembled, reduces the bridge erecting process and improves the construction efficiency.

[0006] Technical scheme: a step formula double guide beam bridge erecting machine for construction in midair, comprising a steel trestle, a support leg, a sliding assembly, a moving assembly, a hoisting assembly and a rotary adjusting assembly, the steel trestle has two front and rear ones, the lower sides of the left and right parts of the steel trestle are connected with the support legs, the steel trestle is provided with the sliding assembly capable of moving between different piers, the steel trestle is provided with the moving assembly capable of moving the bridge deck, and the moving assembly is provided with the hoisting assembly capable of hoisting the bridge deck.

[0007] In addition, it is particularly preferred that the sliding assembly comprises a first sliding rail, a sliding cross beam and a hydraulic telescopic base, the lower sides of the front and rear sides of the steel trestle are connected with the first sliding rails, the left and right two sliding cross beams are slidably connected between the first sliding rails, and the lower sides of the sliding cross beams are connected with the hydraulic telescopic bases.

[0008] In addition, particularly preferably, the moving assembly comprises a second sliding rail, a roller, a first motor, a crane support, the upper side of the steel trestle is connected with the second sliding rail, the upper side of the second sliding rail is placed with the left and right two crane supports, the lower side of the crane support is rotatably connected with a plurality of rollers, the rollers are in contact with the adjacent second sliding rail, the lower part of the crane support is connected with a plurality of first motors, and the first motors are connected with the adjacent rollers.

[0009] In addition, particularly preferably, the lifting assembly comprises a rope winding drum, a flat belt, a second motor and a turntable, the upper part of the crane support is rotatably connected with the turntable, the middle part of the turntable is connected with the left and right two rope winding drums, the upper side of the left and right parts of the turntable is connected with the second motor, the output shaft of the second motor is provided with a pulley, and the front part of the rope winding drum is also provided with a pulley.

[0010] In addition, particularly preferably, the rotating adjusting assembly comprises a gear shaft and a third motor, the middle part of the crane support is connected with the third motor, the output shaft of the third motor is connected with the gear shaft, the upper part of the turntable is connected with the gear shaft, and the adjacent gear shafts are meshed with each other.

[0011] In addition, particularly preferably, the rotating adjusting assembly comprises a gear shaft and a third motor, the middle part of the crane support is connected with the third motor, the output shaft of the third motor is connected with the gear shaft, the upper part of the turntable is connected with the gear shaft, and the adjacent gear shafts are meshed with each other.

[0012] The utility model discloses a hydraulic telescopic base is started after the single bridge installation is completed, makes the hydraulic telescopic base move down and lifts the steel trestle upward, then pushes the steel trestle to slide, moves the steel trestle to the next bridge pier between the installation bridge, reaches the effect of being convenient for the steel trestle between the bridge pier and moving, need not repeatedly disassembles and installs, reduces the process of bridging construction, improves construction efficiency. ACCURATE DRAWINGS

[0013] Figure 1 It is the three-dimensional structure schematic view of the steel trestle and the supporting leg of the utility model.

[0014] Figure 2 It is the three-dimensional structure schematic view of the steel rope and the hook of the utility model.

[0015] Figure 3 It is the three-dimensional structure schematic view of the crane support and the rope winding drum of the utility model.

[0016] Figure 4 It is the three-dimensional structure schematic view of the turntable and the third motor of the utility model.

[0017] Figure 5 It is the three-dimensional structure schematic view of the gear shaft and the third motor of the utility model.

[0018] The above-mentioned attached drawings include the following reference numerals: 1. Steel trestle, 2. Outrigger, 3. First slide rail, 4. Sliding beam, 5. Hydraulic telescopic base, 6. Second slide rail, 7. Roller, 8. First motor, 9. Crane support, 10. Rope reel, 11. Flat belt, 12. Second motor, 13. Turntable, 14. Gear shaft, 15. Third motor, 16. Steel rope, 17. Hook. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] A walking-type double-girder bridge erecting machine for aerial construction, such as Figures 1-5 As shown, the system includes a steel trestle 1, outriggers 2, first slide rails 3, sliding crossbeams 4, hydraulic telescopic bases 5, second slide rails 6, rollers 7, first motor 8, overhead crane brackets 9, rope drum 10, flat belt 11, second motor 12, turntable 13, gear shaft 14, third motor 15, steel rope 16, and hooks 17. The steel trestle 1 has two sections, front and rear. Outriggers 2 are connected to the lower sides of both the left and right sides of the steel trestle 1. First slide rails 3 are connected to the lower front and rear sides of the steel trestle 1. Two sliding crossbeams 4 are slidably connected between the first slide rails 3. Hydraulic telescopic bases 5 are connected to the lower sides of each sliding crossbeam 4. Second slide rails 6 are connected to the upper side of the steel trestle 1. Two overhead crane brackets 9 are placed between the upper sides of the second slide rails 6. Four rollers 7 are rotatably connected to the lower sides of each overhead crane bracket 9. Each roller 7 is connected to an adjacent... The second slide rail 6 is in contact with the crane support 9. The lower part of the crane support 9 is connected to four first motors 8. Each first motor 8 is connected to an adjacent roller 7. The upper part of the crane support 9 is rotatably connected to a turntable 13. The upper side of the middle of the turntable 13 is connected to two left and right rope drums 10. The upper side of the left and right sides of the turntable 13 is connected to a second motor 12. The output shaft of the second motor 12 is equipped with a pulley. The front of the rope drum 10 is also equipped with a pulley. A flat belt 11 is wound between adjacent pulleys. The upper side of the middle of the crane support 9 is connected to a third motor 15. The output shaft of the third motor 15 is connected to a gear shaft 14. The upper part of the turntable 13 is connected to a gear shaft 14. Adjacent gear shafts 14 mesh with each other. A steel rope 16 is wound on each rope drum 10. The lower end of the third motor 15 is connected to a hook 17.

[0021] In use of the utility model, first, after setting up the pier at the position where the bridge is to be erected, the device is placed between the piers, then the first motor 8 is controlled to start, so that the roller 7 rotates on the second slide rail 6, driving the crane support 9 to move to a position convenient for hoisting the bridge, the bridge is hoisted by the lifting hook 17, then the first motor 8 is started, so that the roller 7 rotates, driving the crane support 9 to move, so that the bridge moves to the designated installation position, after the bridge moves to the installation position, the third motor 15 is started, through the meshing action of the gear shaft 14, the rotating disc 13 rotates, so that the bridge rotates, the installation angle of the bridge is adjusted, after the bridge is accurately adjusted, the second motor 12 is controlled to start, through the transmission action of the flat belt 11 and the belt pulley, the winding rope cylinder 10 rotates, the steel rope 16 is unwound, so that the lifting hook 17 moves downward to the assumed position for installation, after the single bridge is installed, the hydraulic telescopic base 5 is started, so that the hydraulic telescopic base 5 moves downward to lift the steel trestle 1 upward, then the steel trestle 1 and the first slide rail 3 slide on the sliding cross beam 4, the steel trestle 1 moves to the next pier between which the bridge is to be installed, then the telescopic end of the hydraulic telescopic base 5 is retracted, the steel trestle 1 is placed between the piers, so that the supporting leg 2 supports the steel trestle 1, then the next section of the bridge can be installed, so that the steel trestle 1 can be conveniently moved between the piers, without repeated disassembly and assembly, reducing the process of bridge erection, improving the construction efficiency.

[0022] It should be understood that the embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

Claims

1. A walking double-girder bridge-erecting machine for aerial construction, characterized in that, The utility model relates to a steel trestle, which comprises a steel trestle (1), a supporting leg (2), a sliding assembly, a moving assembly, a lifting assembly and a rotary adjusting assembly.

2. The striding double-girder bridge-erecting machine for spanning a gap according to claim 1, characterized in that The sliding assembly comprises a first sliding rail (3), a sliding crossbeam (4) and a hydraulic telescopic base (5).

3. The striding double-girder bridge-erecting machine for spanning a gap according to claim 2, characterized in that The moving assembly comprises a second sliding rail (6), a roller (7), a first motor (8) and a hoist trolley support (9).

4. The striding double-girder bridge-erecting machine for spanning a gap according to claim 3, characterized in that The lifting assembly comprises a winding rope drum (10), a flat belt (11), a second motor (12) and a rotating disc (13).

5. The striding double-girder bridge-erecting machine for spanning a gap according to claim 4, characterized in that The rotary adjusting assembly comprises a gear shaft (14) and a third motor (15).

6. The striding double-girder bridge-erecting machine for spanning a gap according to claim 1, characterized in that The utility model also comprises a steel rope (16) and a hook (17). The winding rope drum (10) is wound with the steel rope (16), and the third motor (15) is connected with the hook (17).

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