Fabricated bridge deck slab inclined hoisting construction device

Abstract

The utility model belongs to the technical field of assembled bridge deck slab hoisting construction, and particularly relates to an assembled bridge deck slab inclined hoisting construction device which comprises a frame, a winding drum electric hoist, a steel wire rope, a fixed pulley and a hoisting pulley, the winding drum electric hoist is installed on the frame in a penetrating mode, and the fixed pulley rotates on the frame. The steel wire rope is wound on a roller of the winding drum electric hoist, and the two ends of the steel wire rope pass through the tops of the fixed pulleys on the two sides from inside to outside and then extend downwards. And the two ends of the steel wire rope pass through the bottoms of the two hoisting pulleys from the outer sides of the two hoisting pulleys respectively, extend upwards and are fixed on the frame. The bridge deck slab hoisting device solves the problem that hoisting cannot be carried out due to site limitation in the bridge deck slab hoisting process, ensures a construction road, is safe, reliable, time-saving and labor-saving compared with a traditional hoisting method, greatly improves the working efficiency index of hoisting, ensures the construction quality, and realizes quick hoisting of the assembled bridge deck slab.

Description

Technical Field

[0001] This utility model relates to the field of bridge deck hoisting construction technology; specifically, this utility model relates to a prefabricated bridge deck inclined hoisting construction device. Background Technology

[0002] Compared to traditional cast-in-place construction, prefabricated construction is gaining increasing attention in the industry due to its advantages such as low energy consumption, short construction cycle, high production efficiency, resource conservation, clean production, and low pollution and noise. With social progress and increased public awareness of environmental protection, the construction environment of bridges is receiving more and more attention from governments and the public, especially for core urban bridges. Construction period, construction noise pollution, and traffic control pressure are gradually becoming primary considerations in bridge design. Prefabricated components are manufactured before installation, thus requiring more sophisticated hoisting methods and processes. In urban bridges or mountainous highways, where hoisting space is limited, rapid hoisting is often difficult to achieve. Utility Model Content

[0003] In view of this, the present invention provides a prefabricated bridge deck inclined suspension construction device, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a prefabricated bridge deck inclined suspension construction device, comprising a frame, a drum electric hoist, a wire rope, a fixed pulley, and a lifting pulley. The drum electric hoist is installed on the frame in a through-type manner. The fixed pulley rotates on the frame. One fixed pulley and one lifting pulley are provided on each side of the drum electric hoist. The wire rope is wound around the drum of the drum electric hoist, and both ends of the wire rope extend downward from the inside out after passing the top of the fixed pulleys on both sides. Both ends of the wire rope extend upward from the outside of the two lifting pulleys after passing their bottoms and are fixed to the frame.

[0005] In the prefabricated bridge deck inclined suspension construction device described above, optionally, ear seats are fixedly provided at the bottom of both sides of the frame, a pin sleeve is rotatably installed in the ear seat, a double-ended screw is passed through the inside of the pin sleeve, and a fastening nut is installed at both ends of the double-ended screw, and one end of the wire rope is connected to the pin sleeve.

[0006] In the prefabricated bridge deck inclined lifting construction device described above, optionally, the two fixed pulleys and the two lifting pulleys are symmetrically distributed along the roller axis.

[0007] In the prefabricated bridge deck inclined suspension construction device described above, optionally, a rotating shaft is rotatably installed on both sides of the frame, the fixed pulley is installed on the rotating shaft, an auxiliary roller with an outer diameter adapted to the roller is fixedly sleeved on the outside of the rotating shaft, an auxiliary steel wire rope is wound on the auxiliary roller, and the bottom end of the auxiliary steel wire rope is fixed on the frame, and an auxiliary lifting pulley is provided on the auxiliary steel wire rope.

[0008] In the prefabricated bridge deck inclined suspension construction device described above, optionally, both ends of the roller and the rotating shaft are fitted with first gears, and a second gear meshes between the two first gears on the same side, and the second gear is rotatably mounted on the frame.

[0009] In the prefabricated bridge deck inclined suspension construction device described above, optionally, the outer diameter of the steel wire rope and the auxiliary steel wire rope are the same, and the end of the auxiliary steel wire rope near the fixed pulley is fixedly connected to the auxiliary drum.

[0010] This utility model discloses a prefabricated bridge deck inclined hoisting construction device. By flipping the flat bridge deck into an inclined plane during the hoisting process, it utilizes the gap between the longitudinal beams of the steel plate girder to lift it above the steel plate girder, and then flips it in the opposite direction to lay it flat on the steel plate girder. This solves the problem of limited space for hoisting, keeps the construction road open, is safer and more reliable than traditional hoisting methods, saves time and labor, greatly improves the efficiency of hoisting, and ensures the construction quality, thus realizing the rapid hoisting of prefabricated bridge decks. Attached Figure Description

[0011] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is another perspective view of the present invention;

[0014] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0015] Reference numerals in the attached diagram: 1-Frame; 2-Electric drum hoist; 3-Wire rope; 4-Fixed pulley; 5-Lifting pulley; 6-Drum; 7-Ear seat; 8-Pin sleeve; 9-Double-ended screw; 10-Fasting nut; 11-Shaft; 12-Auxiliary drum; 13-Auxiliary wire rope; 14-Auxiliary lifting pulley; 15-First gear; 16-Second gear. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figures 1 to 3 As shown, this embodiment provides a prefabricated bridge deck inclined suspension construction device, including a frame 1, a drum electric hoist 2, a wire rope 3, a fixed pulley 4, and a lifting pulley 5. The drum electric hoist 2 is installed on the frame 1 in a through-type manner. The fixed pulley 4 rotates on the frame 1. One fixed pulley 4 and one lifting pulley 5 are provided on each side of the drum electric hoist 2. The wire rope 3 is wound on the drum 6 of the drum electric hoist 2, and the two ends of the wire rope 3 extend downward from the inside to the outside after passing through the top of the fixed pulley 4 on both sides. The two ends of the wire rope 3 extend upward from the outside of the two lifting pulleys 5 after passing through their bottoms and are fixed to the frame 1.

[0018] In use, a bridge erecting machine is placed on the pre-erected steel plate beam platform. The drum 6 of the electric hoist 2 rotates, causing the wire rope 3 on one side to be drawn into the drum 6 through the lifting pulley 5, while the wire rope 3 on the other side is released out of the drum 6 through the lifting pulley 5, achieving a state where the two sides are at different heights. At this time, the flat bridge deck is flipped into an inclined plane during the hoisting process, thereby utilizing the gap between the longitudinal beams of the steel plate beam to lift it to the top of the steel plate beam, and steadily lifting it to the top of the steel beam.

[0019] After the bridge deck is lifted above the steel beam, the roller 6 rotates in the opposite direction to achieve horizontal flipping and flat placement on the steel plate beam. The moving gantry crane or bridge erecting machine is then aligned with the installation position, solving the problem of limited space for hoisting, ensuring the construction road is open, and is safer and more reliable than traditional hoisting methods. It saves time and labor, greatly improves the efficiency of hoisting, and ensures the construction quality, realizing the rapid hoisting of prefabricated bridge decks.

[0020] In a relatively specific embodiment, ear seats 7 are fixedly provided at the bottom of both sides of the frame 1. A pin sleeve 8 is rotatably installed inside the ear seat 7. A double-ended screw 9 passes through the inside of the pin sleeve 8, and a fastening nut 10 is installed at both ends of the double-ended screw 9. One end of the wire rope 3 is connected to the pin sleeve 8. When fixing the wire rope 3, the pin sleeve 8 is directly placed inside the ear seat 7, then the double-ended screw 9 is passed through the pin sleeve 8 and the ear seat 7, and then the two fastening nuts 10 are installed at both ends of the double-ended screw 9.

[0021] The two fixed pulleys 4 and the two lifting pulleys 5 are symmetrically distributed along the axis of the drum 6. By hoisting the bridge deck from both sides at an angle, the force on the bridge deck can be more balanced during hoisting, thus improving the hoisting stability.

[0022] A rotating shaft 11 is rotatably mounted on both sides of the frame 1. A fixed pulley 4 is mounted on the rotating shaft 11. An auxiliary roller 12 with an outer diameter matching that of the roller 6 is fixedly sleeved on the outside of the rotating shaft 11. An auxiliary steel wire rope 13 is wound around the auxiliary roller 12, and the bottom end of the auxiliary steel wire rope 13 is fixed to the frame 1. An auxiliary lifting pulley 14 is installed on the auxiliary steel wire rope 13. When hoisting the bridge deck, the lifting pulley 5 and the auxiliary lifting pulley 14 located on the same side can simultaneously support one end of the bridge deck on both sides, further improving the stability and safety of the bridge deck. At the same time, it makes adjusting the bridge deck's posture more stable and efficient.

[0023] Specifically, when one end of the wire rope 3 is released from the drum 6, the fixed pulley 4 rolls and drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the auxiliary drum 12 to rotate, and the auxiliary drum 12 releases the auxiliary wire rope 13 and the end of the wire rope 3 on the same side simultaneously, so that the auxiliary lifting pulley 14 has a movement process synchronized with the pulley therein, further improving the stability of the bridge deck hoisting.

[0024] Both ends of the roller 6 and the rotating shaft 11 are fitted with first gears 15. A second gear 16 meshes between the two first gears 15 on the same side, and the second gear 16 is rotatably mounted on the frame 1. By setting the first gears 15 and the second gears 16, when the roller 6 rotates, the first gears 15 and the second gears 16 can ensure that the rotating shaft 11 has a synchronous and same-direction rotation process with the roller 6, further ensuring that the auxiliary lifting pulley 14 has a synchronous movement process with the pulley therein, thereby ensuring that the bridge deck being lifted is more balanced.

[0025] The outer diameter of the steel wire rope 3 is the same as that of the auxiliary steel wire rope 13, and the end of the auxiliary steel wire rope 13 near the fixed pulley 4 is fixedly connected to the auxiliary drum 12. This arrangement further reduces the error between the auxiliary lifting pulley 14 and its pulleys during movement, improves their consistency, and ensures more stable lifting of the bridge deck. The end of the auxiliary steel wire rope 13 can be fixed to the frame 1 in the same way as the steel wire rope 3.

[0026] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A device for the inclined hoisting of a prefabricated bridge deck, characterized in that The system includes a frame (1), a drum electric hoist (2), a wire rope (3), a fixed pulley (4), and a lifting pulley (5). The drum electric hoist (2) is installed on the frame (1) in a through-type manner. The fixed pulley (4) rotates on the frame (1). One fixed pulley (4) and one lifting pulley (5) are provided on each side of the drum electric hoist (2). The wire rope (3) is wound on the drum (6) of the drum electric hoist (2). The two ends of the wire rope (3) extend downward from the inside to the outside after passing the top of the fixed pulleys (4) on both sides. The two ends of the wire rope (3) extend upward from the outside of the two lifting pulleys (5) after passing their bottoms and are fixed on the frame (1).

2. The prefabricated bridge deck inclined suspension construction device according to claim 1, characterized in that, Ear seats (7) are fixedly installed on the bottom of both sides of the frame (1). A pin sleeve (8) is rotatably installed inside the ear seat (7). A double-headed screw (9) is inserted inside the pin sleeve (8), and a fastening nut (10) is installed at both ends of the double-headed screw (9). One end of the wire rope (3) is connected to the pin sleeve (8).

3. The prefabricated bridge deck panel inclined hoisting construction device according to claim 1, characterized in that, The two fixed pulleys (4) and the two lifting pulleys (5) are symmetrically distributed along the axis of the drum (6).

4. The prefabricated bridge deck panel diagonal hoisting construction device according to claim 1, characterized in that, The frame (1) has a rotating shaft (11) rotatably mounted on both sides. The fixed pulley (4) is mounted on the rotating shaft (11). An auxiliary roller (12) with an outer diameter that matches the roller (6) is fixedly sleeved on the outside of the rotating shaft (11). An auxiliary steel wire rope (13) is wound on the auxiliary roller (12), and the bottom end of the auxiliary steel wire rope (13) is fixed on the frame (1). An auxiliary lifting pulley (14) is provided on the auxiliary steel wire rope (13).

5. The prefabricated bridge deck panel diagonal hoisting construction device according to claim 4, characterized in that, Both ends of the roller (6) and the shaft (11) are fitted with first gears (15), and a second gear (16) meshes between the two first gears (15) on the same side, and the second gear (16) is rotatably mounted on the frame (1).

6. The device according to claim 4, characterized in that, The outer diameter of the steel wire rope (3) is the same as that of the auxiliary steel wire rope (13), and the end of the auxiliary steel wire rope (13) near the fixed pulley (4) is fixedly connected to the auxiliary drum (12).

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