Bridge precast beam hoisting device

Abstract

The application relates to a bridge precast beam hoisting device and relates to the technical field of precast beam hoisting equipment, which comprises a hoisting main beam, a driving motor is fixedly connected to the right side surface of the hoisting main beam, and a bidirectional threaded rod is fixedly connected to the output shaft of the driving motor. When the precast beam needs to be hoisted, the driving motor is started to drive the bidirectional threaded rod to rotate, the bidirectional threaded rod is connected with a sliding block, the two sliding blocks slide on the inner walls of the corresponding sliding grooves, the corresponding hoisting assemblies can be moved, the hoisting assembly at the middle position is stationary, the hoisting assemblies on the two sides move to the two sides, three groups of hoisting assemblies simultaneously hoist the precast beam, the stability during hoisting of the precast beam can be improved, the shaking phenomenon during hoisting of the precast beam is reduced, and the construction safety is improved.

Description

Technical Field

[0001] This application relates to the field of precast beam hoisting equipment technology, and in particular to a bridge precast beam hoisting device. Background Technology

[0002] Precast beams refer to concrete beam components that are prefabricated in a factory and then transported to the construction site for installation. Their production process includes standardized procedures such as formwork assembly, rebar tying, and concrete pouring and curing. Factory production can improve the quality and stability of components and shorten the construction cycle by up to 50%. The construction process must comply with industry standards such as the "Construction Technology Specification for Building Engineering" and focus on controlling technical indicators such as hoisting accuracy and node connection quality. As of 2024, this technology has been applied on a large scale in fields such as long-span viaducts and prefabricated buildings. In bridge construction, precast beams are increasingly developing towards ultra-long, ultra-heavy, and large-span hoisting.

[0003] However, existing technologies have found that when using traditional hoisting equipment to hoist precast beams, the contact area with the precast beams is insufficient, which makes the precast beams prone to swaying during hoisting, increasing construction difficulty and safety risks. Utility Model Content

[0004] The purpose of this application is to provide a bridge precast beam hoisting device, which can hoist precast beams simultaneously using three sets of hoisting components, thereby improving the stability of precast beam hoisting, reducing swaying and other phenomena during the hoisting process, and improving construction safety, thus solving the problems mentioned in the background art.

[0005] The bridge precast beam hoisting device provided in this application adopts the following technical solution: it includes a hoisting main beam, a drive motor is fixedly connected to the right side of the hoisting main beam, a bidirectional threaded rod is fixedly connected to the output shaft of the drive motor, the outer surface of the bidirectional threaded rod is rotatably connected to the inner wall of the hoisting main beam, two sliding grooves are opened on the bottom surface of the hoisting main beam, a slider is slidably connected to the inner wall of each sliding groove, the inner wall of each slider is threadedly connected to the outer surface of the bidirectional threaded rod, a first fixing plate is fixedly connected to the bottom surface of the hoisting main beam, a second fixing plate is fixedly connected to the bottom surface of each slider, two hooks are fixedly connected to the bottom surface of each second fixing plate and the first fixing plate, and a hoisting assembly is provided below each second fixing plate and the first fixing plate.

[0006] By adopting the above technical solution, a drive motor is installed on the right side of the hoisting main beam and fixed to the hoisting main beam to achieve the installation of the drive motor. A double-threaded rod is installed on the output shaft of the drive motor and fixed to the output shaft of the drive motor, so that the drive motor can drive the double-threaded rod to rotate. The double-threaded rod and the hoisting main beam are configured as a rotatable connection, so that when the drive motor drives the double-threaded rod to rotate, the hoisting main beam can limit the rotation of the double-threaded rod. Two sliding grooves are opened on the bottom surface of the hoisting main beam, and sliders are set on the inner walls of the corresponding sliding grooves. The sliders and the corresponding sliding grooves are configured as a sliding connection, so that the sliding grooves can limit the sliders, so that the sliders can only move along the direction of the sliding grooves. The threaded rod is connected to the drive motor, which rotates the bidirectional threaded rod, causing two sliders to move synchronously in opposite directions. This allows the sliders to move the second fixed plate on the bottom surface. The first fixed plate is fixedly set on the bottom surface of the main beam and positioned at the center. Lifting components are set below the first and second fixed plates. When the device lifts the precast beam, the drive motor rotates the bidirectional threaded rod, causing the sliders to move the corresponding second fixed plates relative to each other. This, in turn, allows the lifting components on both sides to move relative to each other. By using three sets of lifting components to lift the precast beam, the stability of the precast beam during lifting is improved, and shaking and other phenomena during the lifting process are reduced, thus improving construction safety.

[0007] Preferably, two lifting rings are fixedly connected to the upper surface of the hoisting main beam.

[0008] By adopting the above technical solution, two lifting rings are installed on the upper surface of the main beam. The lifting rings are distributed on both sides above the main beam, so that the lifting equipment can lift the main beam and the precast beam below through the connection between the steel cable and the lifting ring, which further improves the stability during the lifting.

[0009] Preferably, each of the lifting components includes a support plate, and an anti-slip and wear-resistant plate is fixedly installed on the upper surface of each support plate.

[0010] By adopting the above technical solution, the hoisting assembly includes a bearing plate, and an anti-slip and wear-resistant plate is provided on the upper surface of the hoisting assembly, so that the bearing plate can support the anti-slip and wear-resistant plate. The anti-slip and wear-resistant plate can contact the bottom surface of the precast beam, so that the anti-slip performance of the precast beam can be improved by the anti-slip and wear-resistant plate during hoisting, and the precast beam can be prevented from slipping during the hoisting process.

[0011] Preferably, two fixing blocks are fixedly connected to the upper surface of each of the bearing plates, and a fixing rod is fixedly connected to the inner wall of each fixing block.

[0012] By adopting the above technical solution, two fixing blocks are set on the upper surface of the bearing plate to achieve the positioning and installation effect of the fixing blocks. The fixing rod is installed on the inner wall of the corresponding fixing block and set as a fixed connection, so that when the bearing plate moves, it can drive the corresponding fixing block and fixing rod to move.

[0013] Preferably, a sleeve is rotatably mounted on the outer surface of each of the fixed rods, and a lifting ring is fixedly connected to the outer surface of each sleeve.

[0014] By adopting the above technical solution, a sleeve is set on the outer surface of the fixed rod, and the sleeve and the fixed rod are configured as a rotatable connection to achieve the limiting of the sleeve. The lifting ring is installed on the outer surface of the sleeve to achieve the installation of the lifting ring.

[0015] Preferably, a connecting rope is fixedly connected to the outer surface of each lifting ring, a connecting ring is fixedly installed at the top of each connecting rope, and each connecting ring is adapted to a corresponding hook.

[0016] By adopting the above technical solution, a connecting rope is installed on the outer surface of the lifting ring, and a connecting ring is set at the top of the connecting rope. The connecting ring is matched with the corresponding hook, so that after the lifting assembly lifts the precast beam, the corresponding lifting assembly can be lifted and moved through the connection between the hook and the connecting ring. After the precast beam is installed, the lifting assembly can be removed by loosening the connection between the connecting ring and the hook.

[0017] Preferably, each of the fixed blocks has a clamping plate fixedly connected to the side of each block that is close to each other, and the bottom surface of each clamping plate is fixedly connected to the upper surface of the corresponding bearing plate.

[0018] By adopting the above technical solution, a clamping plate is set on the side of the fixed blocks that are close to each other, and the bottom surface of the clamping plate is connected to the corresponding bearing plate to form a fixed connection, so that the clamping plate can limit the precast beam.

[0019] Preferably, each of the clamping plates has a guide plate on its upper surface.

[0020] By adopting the above technical solution, a guide plate is set on the upper surface of the clamping plate. Through the bending and guiding of the guide plate, the clamping speed of the clamping plate on the precast beam can be increased when the hoisting assembly hoists the precast beam.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This bridge precast beam hoisting device comprises a drive motor, a bidirectional threaded rod, sliders, and hoisting components. When hoisting a precast beam, the drive motor is activated to rotate the bidirectional threaded rod. The connection between the threaded rod and the sliders allows the two sliders to slide along the inner walls of corresponding grooves, thereby enabling the corresponding hoisting components to move. The middle hoisting component remains stationary while the two side hoisting components move to the sides, allowing all three sets of hoisting components to simultaneously hoist the precast beam, thus improving the stability during hoisting. This system reduces swaying during precast beam hoisting, improving construction safety. By installing guide plates, the clamping plates guide the precast beams during hoisting, facilitating the connection between the precast beams and the clamping plates. During hoisting, the connecting rings are connected to the corresponding hooks, allowing the device to lift the main beam and precast beams via steel cables and lifting rings. After hoisting, the connecting rings are disconnected from the hooks, allowing the hoisting components to be easily removed. This facilitates the removal of the hoisting components after the precast beams have been hoisted. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the entire application in three dimensions; Figure 2 This is a schematic diagram of the overall front view of this application; Figure 3 This is a structural schematic diagram showing the connection relationship between the hoisting main beam and the first fixed plate in this application; Figure 4 This is a structural diagram illustrating the connection relationship between the bidirectional threaded rod and the slider in this application; Figure 5 This is a structural schematic diagram of the hoisting assembly of this application.

[0023] In the picture: 1. Lifting main beam; 2. Drive motor; 3. Two-way threaded rod; 4. Slide groove; 5. Sliding block; 6. First fixing plate; 7. Second fixing plate; 8. Hook; 9. Lifting assembly; 901. Bearing plate; 902. Anti-slip and wear-resistant plate; 903. Fixing block; 904. Fixing rod; 905. Sleeve; 906. Lifting ring; 907. Connecting rope; 908. Connecting ring; 909. Clamping plate; 910. Guide plate; 10. Lifting ring. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A bridge precast beam hoisting device, please refer to [link / reference]. Figure 1 , Figure 3 and Figure 4The system includes a main lifting beam 1, with a drive motor 2 fixedly connected to its right side. The drive motor 2 is installed on the right side of the main lifting beam 1 and fixed to the main lifting beam 1, thus achieving the installation of the drive motor 2. A bidirectional threaded rod 3 is fixedly connected to the output shaft of the drive motor 2. The outer surface of the bidirectional threaded rod 3 is rotatably connected to the inner wall of the main lifting beam 1. The bidirectional threaded rod 3 is installed on the output shaft of the drive motor 2 and fixed to the output shaft of the drive motor 2, enabling the drive motor 2 to drive the bidirectional threaded rod 3 to rotate. The threaded rod 3 is rotatably connected to the main lifting beam 1, so that when the drive motor 2 drives the bidirectional threaded rod 3 to rotate, the main lifting beam 1 can limit the bidirectional threaded rod 3. Two sliding grooves 4 are opened on the bottom surface of the main lifting beam 1, and a slider 5 is slidably connected to the inner wall of each sliding groove 4. The slider 5 and the corresponding sliding groove 4 are slidably connected, so that the sliding groove 4 can limit the slider 5, so that the slider 5 can only move along the direction of the sliding groove 4.

[0026] Please see Figure 1 , Figure 3 and Figure 4 Each slider 5 has its inner wall threadedly connected to the outer surface of the bidirectional threaded rod 3. A first fixing plate 6 is fixedly connected to the bottom surface of the main lifting beam 1, and a second fixing plate 7 is fixedly connected to the bottom surface of each slider 5. By connecting the slider 5 to the bidirectional threaded rod 3, when the drive motor 2 drives the bidirectional threaded rod 3 to rotate, it can drive the two sliders 5 to move synchronously in opposite directions, thereby enabling the sliders 5 to drive the second fixing plate 7 on the bottom surface to move. Two hooks 8 are fixedly connected to the bottom surface of each second fixing plate 7 and the first fixing plate 6. A lifting assembly 9 is provided below each second fixing plate 7 and the first fixing plate 6. The first fixing plate 6 is fixedly installed on the bottom surface of the main beam 1 and positioned at the center. The lifting assembly 9 is installed below the first fixing plate 6 and the second fixing plate 7. When the device lifts the precast beam, the bidirectional threaded rod 3 is driven by the drive motor 2 to rotate, thereby causing the slider 5 to move the corresponding second fixing plate 7 relative to each other. This allows the lifting assemblies 9 on both sides to move relative to each other. By using three sets of lifting assemblies 9 to lift the precast beam, the stability of the precast beam during lifting can be improved, preventing swaying and other phenomena during the lifting process, and improving construction safety.

[0027] Example 2: A bridge precast beam hoisting device, please refer to... Figure 1 , Figure 2 and Figure 4Two lifting rings 10 are fixedly connected to the upper surface of the main beam 1. The two lifting rings 10 are installed on the upper surface of the main beam 1 and are distributed on both sides above the main beam 1. This allows the lifting equipment to lift the main beam 1 and the precast beam below by connecting the steel cable to the lifting rings 10, thereby further improving the stability during the lifting process.

[0028] Please see Figure 1 , Figure 3 and Figure 5 Each lifting assembly 9 includes a bearing plate 901, and an anti-slip and wear-resistant plate 902 is fixedly installed on the upper surface of each bearing plate 901. The bearing plate 901 supports the anti-slip and wear-resistant plate 902 on its upper surface, allowing the anti-slip and wear-resistant plate 902 to contact the bottom surface of the precast beam. This enhances the anti-slip performance of the precast beam during lifting, preventing slippage during the lifting process. In case of slippage, two fixing blocks 903 are fixedly connected to the upper surface of each bearing plate 901, and a fixing rod 904 is fixedly connected to the inner wall of each fixing block 903. The two fixing blocks 903 on the upper surface of the bearing plate 901 are used to achieve the positioning and installation effect of the fixing blocks 903. The fixing rod 904 is installed on the inner wall of the corresponding fixing block 903 to form a fixed connection, so that when the bearing plate 901 moves, it can drive the corresponding fixing block 903 and fixing rod 904 to move.

[0029] Please see Figure 1 , Figure 3 and Figure 5 Each fixed rod 904 has a sleeve 905 rotatably mounted on its outer surface, and each sleeve 905 has a lifting ring 906 fixedly connected to its outer surface. A sleeve 905 is provided on the outer surface of the fixed rod 904, and the sleeve 905 and the fixed rod 904 are configured to be rotatably connected to achieve the limiting of the sleeve 905. The lifting ring 906 is installed on the outer surface of the sleeve 905 to achieve the installation of the lifting ring 906. A connecting rope 907 is fixedly connected to the outer surface of each lifting ring 906, and a connecting ring 908 is fixedly installed at the top of each connecting rope 907. Each connecting ring 908 is adapted to the corresponding hook 8. The connecting rope 907 is installed on the outer surface of the lifting ring 906, and a connecting ring 908 is provided at the top of the connecting rope 907. The connecting ring 908 is adapted to the corresponding hook 8, so that after the lifting assembly 9 lifts the precast beam, the connection between the hook 8 and the connecting ring 908 can enable the corresponding lifting assembly 9 to be lifted and moved. After the precast beam is installed, the lifting assembly 9 can be removed by loosening the connection between the connecting ring 908 and the hook 8.

[0030] Please see Figure 1 , Figure 3 and Figure 5 Each fixing block 903 has a clamping plate 909 fixedly connected to one side of each other. The bottom surface of each clamping plate 909 is fixedly connected to the upper surface of the corresponding bearing plate 901. The clamping plate 909 is set on the side of the fixing blocks 903 that are close to each other, and the bottom surface of the clamping plate 909 is connected to the corresponding bearing plate 901 to form a fixed connection, so that the clamping plate 909 can limit the precast beam. Each clamping plate 909 has a guide plate 910 on its upper surface. The guide plate 910 is set on the upper surface of the clamping plate 909. Through the bending and guiding of the guide plate 910, the clamping speed of the clamping plate 909 on the precast beam can be increased by the guide plate 910 when the hoisting assembly 9 hoists the precast beam.

[0031] The implementation principle of this application embodiment is as follows: When a precast beam needs to be hoisted, the guide plate 910 first guides and clamps the precast beam with the clamping plate 909. Then, the drive motor 2 is started to drive the bidirectional threaded rod 3 to rotate. Through the connection between the bidirectional threaded rod 3 and the slider 5, the two sliders 5 slide on the inner wall of the corresponding groove 4 until the desired position is reached. Then, through the connection between the connecting ring 908 and the hook 8, the corresponding hoisting assembly 9 can move. The hoisting assembly 9 in the middle position does not move, while the hoisting assemblies 9 on both sides move to the corresponding positions on both sides. This allows the three sets of lifting components 9 to lift the precast beams simultaneously, thereby improving the stability of the precast beams during lifting, reducing swaying and other phenomena during the lifting process, and enhancing construction safety. During lifting, the connection between the steel cable and the lifting ring 10 enables the lifting equipment to lift the main beam 1 and the precast beam. After the workers have completed the lifting, they disconnect the corresponding connecting ring 908 from the corresponding hook 8, allowing the lifting components 9 to be easily removed. This facilitates the removal of the lifting components 9 after the precast beams are lifted, improving the ease of operation of the device.

Claims

1. A bridge precast beam hoisting device, comprising a main hoisting beam (1), characterized in that: A drive motor (2) is fixedly connected to the right side of the hoisting main beam (1). A bidirectional threaded rod (3) is fixedly connected to the output shaft of the drive motor (2). The outer surface of the bidirectional threaded rod (3) is rotatably connected to the inner wall of the hoisting main beam (1). Two sliding grooves (4) are opened on the bottom surface of the hoisting main beam (1). A slider (5) is slidably connected to the inner wall of each sliding groove (4). The inner wall of each slider (5) is threadedly connected to the outer surface of the bidirectional threaded rod (3). A first fixing plate (6) is fixedly connected to the bottom surface of the hoisting main beam (1). A second fixing plate (7) is fixedly connected to the bottom surface of each slider (5). Two hooks (8) are fixedly connected to the bottom surfaces of each second fixing plate (7) and the first fixing plate (6). A hoisting assembly (9) is provided below each second fixing plate (7) and the first fixing plate (6).

2. The bridge precast beam hoisting device according to claim 1, characterized in that: Two lifting rings (10) are fixedly connected to the upper surface of the main lifting beam (1).

3. The bridge precast beam hoisting device according to claim 1, characterized in that: Each of the lifting assemblies (9) includes a support plate (901), and an anti-slip and wear-resistant plate (902) is fixedly installed on the upper surface of each support plate (901).

4. The bridge precast beam hoisting device according to claim 3, characterized in that: Two fixing blocks (903) are fixedly connected to the upper surface of each of the bearing plates (901), and a fixing rod (904) is fixedly connected to the inner wall of each fixing block (903).

5. A bridge precast beam hoisting device according to claim 4, characterized in that: Each of the fixed rods (904) has a sleeve (905) rotatably mounted on its outer surface, and each of the sleeves (905) has a lifting ring (906) fixedly connected to its outer surface.

6. A bridge precast beam hoisting device according to claim 5, characterized in that: Each of the lifting rings (906) has a connecting rope (907) fixedly connected to its outer surface, and a connecting ring (908) is fixedly installed at the top of each connecting rope (907). Each connecting ring (908) is adapted to a corresponding hook (8).

7. A bridge precast beam hoisting device according to claim 4, characterized in that: Each of the fixed blocks (903) has a clamping plate (909) fixedly connected to one side of each other, and the bottom surface of each clamping plate (909) is fixedly connected to the upper surface of the corresponding bearing plate (901).

8. A bridge precast beam hoisting device according to claim 7, characterized in that: Each of the clamping plates (909) has a guide plate (910) on its upper surface.

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