Steel box girder positioning and splicing device

Abstract

The utility model relates to a kind of steel box girder positioning splicing device, steel box girder splicing technical field, including construction platform, the both ends of construction platform top are fixedly installed with electric slide rail, slidingly installed with pedestal between two electric slide rails, the top of pedestal is fixedly installed with hydraulic cylinder, the top of pedestal is fixedly connected with four guide rods, and movable crossbeam is arranged between multiple guide rods.The utility model has the beneficial effect that by the telescoping of the piston rod of hydraulic cylinder, movable crossbeam can be driven to move up and down on guide rod, and then the position of steel box girder body on the carrying box can be lifted to facilitate the welding of the connecting part of steel box girder body by staff, then, by the setting of electric slide rail, steel box girder body can be driven to move horizontally by pedestal, and then the splicing and assembling purpose of multiple steel box girder bodies is realized, to improve installation efficiency and reduce the operation space of staff.

Description

Technical Field

[0001] This utility model relates to the field of steel box girder splicing technology, and in particular to a steel box girder positioning and splicing device. Background Technology

[0002] Steel box girders, also known as steel plate box girders, are a common structure for highway bridges. They are hollow inside and look like a box, hence the name steel box girder. Steel box girders are generally installed by using cranes to lift and splice them.

[0003] In the current technology, when installing steel box girders, multiple sections of steel box girders need to be transported from the production area to the construction site. Then, the steel box girders are lifted into the air by a crane. After that, the workers adjust them to align the two ends of the steel box girders. Before hoisting, temporary supports need to be installed below the installation area of ​​the steel box girders. The aligned steel box girders are placed on the temporary supports, and then the workers weld at the joints of the steel box girders to complete the assembly of the steel box girders.

[0004] Currently, in the construction of large steel structure bridges, especially in the stage of splicing bridge decks, due to the large size and heavy weight of the components, the traditional manual alignment method is not only inefficient but also prone to errors, leading to unstable welding quality in the later stages. In addition, the traditional method relies on a large amount of human resources, which is time-consuming and labor-intensive. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a steel box girder positioning and splicing device.

[0006] The technical solution of this utility model is as follows: a steel box girder positioning and splicing device includes a construction platform. Electric slide rails are fixedly installed at both ends of the top of the construction platform. A base is slidably installed between two of the electric slide rails. A hydraulic cylinder is fixedly installed on the top of the base. Four guide rods are fixedly connected to the top of the base. A movable crossbeam is arranged between the multiple guide rods. Guide seats are fixedly connected to both sides of the movable crossbeam. Each guide seat is slidably connected to its corresponding guide rod. The piston rod of each hydraulic cylinder is fixedly connected to the movable crossbeam. An installation groove is opened at the top of the movable crossbeam. A bearing plate is fixedly connected between the inner walls of the installation groove. The steel box girder body is placed on the top of the bearing plate.

[0007] By adopting the above technical solution, the extension and retraction of the piston rod of the hydraulic cylinder can drive the movable crossbeam to move up and down on the guide rod, thereby raising the position of the steel box girder body on the bearing box so that the workers can weld the connection of the steel box girder body. Subsequently, through the setting of the electric slide rail, the base can be used to drive the steel box girder body to move horizontally, thereby achieving the purpose of splicing and assembling multiple steel box girder bodies.

[0008] In a preferred embodiment, a stabilizing component is provided inside the mounting groove. The stabilizing component includes a bidirectional lead screw rotatably connected inside the mounting groove, and a fixing rod is fixedly connected inside the mounting groove and to one side of the bidirectional lead screw.

[0009] By adopting the above technical solution, the rotation of the bidirectional screw can drive the two sliding seats to move in opposite directions, thereby using the clamping seats to fix both sides of the steel box girder body, so as to reduce the positional displacement of the steel box girder body during the welding process.

[0010] In a preferred embodiment, the stabilizing component further includes sliding seats that are slidably installed at both ends inside the mounting groove. Each sliding seat has a clamping seat fixedly connected to its top, and both ends of the top of the movable crossbeam are fixedly connected to guide rails. The sliding seats are slidably connected to the guide rails.

[0011] By adopting the above technical solution and setting the guide rail, the sliding seat can be limited to a certain extent.

[0012] In a preferred embodiment, a plurality of reinforcing ribs are fixedly connected between the clamping seat and the sliding seat, and the plurality of reinforcing ribs are arranged at equal intervals.

[0013] By adopting the above technical solution and by setting the reinforcing rib, the connection strength between the clamping seat and the sliding seat can be enhanced.

[0014] In a preferred embodiment, a servo motor is fixedly mounted on the outer side of the movable crossbeam, and the output shaft of the servo motor extends into the interior of the mounting groove and is fixedly connected to a bidirectional lead screw.

[0015] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive the bidirectional lead screw to rotate, thereby realizing the transmission of power.

[0016] In a preferred embodiment, support feet are fixedly installed at the four corners of the bottom of the construction platform, and each support foot has four mounting holes inside.

[0017] By adopting the above technical solution and setting up support feet, the construction platform can be provided with better support.

[0018] In a preferred embodiment, the clamping seat is provided with a cooperating inclined surface on the side of the steel box girder body that is close to it.

[0019] By adopting the above technical solution, the clamping seat can be more tightly fitted to the steel box girder body.

[0020] In a preferred embodiment, a controller is externally connected to the outside of the construction platform, and the electric slide rail, servo motor and hydraulic cylinder are all electrically connected to the controller.

[0021] By adopting the above technical solution, the controller can control the electric slide rail, servo motor and hydraulic cylinder to start and stop.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. In this utility model, the bearing plate can support the steel box girder body and provide a splicing site for the steel box girder body. Then, by extending and retracting the piston rod of the hydraulic cylinder, the movable crossbeam can be driven to move up and down on the guide rod, thereby raising the position of the steel box girder body on the bearing box so that the workers can weld the connection of the steel box girder body. Subsequently, by setting the electric slide rail, the base can be used to drive the steel box girder body to move horizontally, thereby achieving the purpose of splicing and assembling multiple steel box girder bodies.

[0024] 2. In this utility model, the rotation of the bidirectional lead screw can drive the two sliding seats to move in opposite directions, thereby using the clamping seats to fix both sides of the steel box girder body, so as to reduce the positional displacement of the steel box girder body during the welding process, keep the steel box girder body in the correct position for welding operations, and adapt to different steel box girder body models for use. Attached Figure Description

[0025] Figure 1 This utility model provides an overall perspective view of a steel box girder positioning and splicing device;

[0026] Figure 2 This utility model provides a top view of a steel box girder positioning and splicing device;

[0027] Figure 3 This is a partial schematic diagram of a steel box girder positioning and splicing device provided by the present invention.

[0028] Legend: 1. Construction platform; 2. Electric slide rail; 3. Base; 4. Guide rod; 5. Movable crossbeam; 6. Steel box girder body; 7. Guide rail; 8. Sliding seat; 9. Clamping seat; 10. Reinforcing rib 1; 11. Two-way screw; 12. Fixed rod; 13. Mounting groove; 14. Servo motor; 15. Guide seat; 16. Hydraulic cylinder. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-3 A steel box girder positioning and splicing device includes a construction platform 1. Electric slide rails 2 are fixedly installed at both ends of the top of the construction platform 1. A base 3 is slidably installed between two electric slide rails 2. A hydraulic cylinder 16 is fixedly installed on the top of the base 3. Four guide rods 4 are fixedly connected to the top of the base 3. A movable crossbeam 5 is arranged between the guide rods 4. Guide seats 15 are fixedly connected to both sides of the movable crossbeam 5, and each guide seat 15 is slidably connected to its corresponding guide rod 4. The piston rods of the hydraulic cylinders 16 are fixedly connected to the movable crossbeam 5. An installation groove 13 is opened at the top of the movable crossbeam 5. A bearing plate is fixedly connected between the inner walls of the installation groove 13. The top of the bearing plate... The steel box girder body 6 is placed on the support plate during the construction of large steel structure bridges. The support plate can support the steel box girder body 6 and provide a splicing site for the steel box girder body 6. Then, by extending and retracting the piston rod of the hydraulic cylinder 16, the movable crossbeam 5 can be driven to move up and down on the guide rod 4, thereby raising the position of the steel box girder body 6 on the support box so that the workers can weld the joints of the steel box girder body 6. Subsequently, by setting the electric slide rail 2, the base 3 can drive the steel box girder body 6 to move horizontally, thereby realizing the purpose of splicing and assembling multiple steel box girder bodies 6, improving installation efficiency and reducing the operating space of workers.

[0031] Specifically, a stabilizing component is installed inside the mounting groove 13. This component includes a bidirectional lead screw 11 rotatably connected inside the mounting groove 13. Rotation of the bidirectional lead screw 11 causes two sliding seats 8 to move in opposite directions, thereby using clamping seats 9 to fix both sides of the steel box girder body 6. This reduces positional displacement of the steel box girder body 6 during welding, ensuring the steel box girder body 6 is welded in the correct position, adapting to different steel box girder body 6 models. A fixing rod 12 is fixedly connected inside the mounting groove 13 and to one side of the bidirectional lead screw 11, further stabilizing the structure. The fixed component also includes sliding seats 8 that are slidably installed at both ends inside the mounting groove 13. Each sliding seat 8 has a clamping seat 9 fixedly connected to its top. Each end of the top of the movable crossbeam 5 has a guide rail 7 fixedly connected to its top. The sliding seat 8 is slidably connected to the guide rail 7. The guide rail 7 can limit the sliding seat 8 to a certain extent, making the clamping seat 9 more stable during adjustment. Several reinforcing ribs 10 are fixedly connected between the clamping seat 9 and the sliding seat 8. The multiple reinforcing ribs 10 are arranged at equal intervals. The reinforcing ribs 10 can strengthen the connection strength between the clamping seat 9 and the sliding seat 8.

[0032] Specifically, a servo motor 14 is fixedly installed on the outer side of the movable crossbeam 5. The output shaft of the servo motor 14 extends into the interior of the mounting groove 13 and is fixedly connected to the bidirectional lead screw 11. The rotation of the output shaft of the servo motor 14 can drive the bidirectional lead screw 11 to rotate, thereby realizing the transmission of power. Support feet are fixedly installed at the four corners of the bottom of the construction platform 1. Each support foot has four mounting holes. The support feet provide good support for the construction platform 1. The clamping seat 9 is provided with a cooperating inclined surface on the side close to the steel box girder body 6, so that the clamping seat 9 and the steel box girder body 6 fit together more tightly. A controller is connected to the outer side of the construction platform 1. The electric slide rail 2, the servo motor 14 and the hydraulic cylinder 16 are all electrically connected to the controller. The controller can control the electric slide rail 2, the servo motor 14 and the hydraulic cylinder 16 to start and stop.

[0033] Working principle: First, during the construction of a large steel structure bridge, a crane can hoist the steel box girder body 6 onto the bearing plate. Then, the servo motor 14 is started, driving the rotation of the bidirectional lead screw 11, which can cause the two sliding seats 8 to move in opposite directions. This allows the clamping seats 9 to fix the two sides of the steel box girder body 6, reducing the positional displacement of the steel box girder body 6 during welding and keeping the steel box girder body 6 in the correct position for welding operations. Then, the workers can control the hydraulic cylinder 16 to start through an external controller. Through the extension and retraction of the piston rod of the hydraulic cylinder 16, the movable crossbeam 5 can be moved up and down on the guide rod 4, thereby raising the position of the steel box girder body 6 on the bearing box so that the workers can weld the joints of the steel box girder body 6. Subsequently, the electric slide rail 2 is started. Through the use of the electric slide rail 2, the base 3 can be used to drive the steel box girder body 6 to move horizontally, so as to achieve the purpose of splicing and assembling multiple steel box girder bodies 6.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steel box girder positioning and splicing device, comprising a construction platform (1), characterized in that: Electric slide rails (2) are fixedly installed at both ends of the top of the construction platform (1). A base (3) is slidably installed between the two electric slide rails (2). A hydraulic cylinder (16) is fixedly installed on the top of the base (3). Four guide rods (4) are fixedly connected to the top of the base (3). A movable crossbeam (5) is set between the multiple guide rods (4). Guide seats (15) are fixedly connected to both sides of the movable crossbeam (5). The guide seats (15) are slidably connected to the corresponding guide rods (4). The piston rods of the hydraulic cylinders (16) are fixedly connected to the movable crossbeam (5). An installation groove (13) is opened at the top of the movable crossbeam (5). A bearing plate is fixedly connected between the inner walls of the installation groove (13). A steel box girder body (6) is placed on the top of the bearing plate.

2. The steel box girder positioning and splicing device according to claim 1, characterized in that: The mounting groove (13) is provided with a stabilizing component, which includes a bidirectional lead screw (11) rotatably connected inside the mounting groove (13), and a fixing rod (12) is fixedly connected inside the mounting groove (13) and on one side of the bidirectional lead screw (11).

3. The steel box girder positioning and splicing device according to claim 2, characterized in that: The stabilizing component also includes sliding seats (8) that are slidably installed at both ends inside the mounting groove (13). Each sliding seat (8) is fixedly connected to a clamping seat (9). Each end of the top of the movable crossbeam (5) is fixedly connected to a guide rail (7). The sliding seat (8) is slidably connected to the guide rail (7).

4. The steel box girder positioning and splicing device according to claim 3, characterized in that: A plurality of reinforcing ribs (10) are fixedly connected between the clamping seat (9) and the sliding seat (8), and the plurality of reinforcing ribs (10) are arranged at equal intervals.

5. A steel box girder positioning and splicing device according to claim 1, characterized in that: A servo motor (14) is fixedly installed on the outside of the movable crossbeam (5). The output shaft of the servo motor (14) extends into the interior of the mounting groove (13) and is fixedly connected to the bidirectional lead screw (11).

6. The steel box girder positioning and splicing device according to claim 1, characterized in that: The construction platform (1) has four fixed support feet at the bottom corners, and each support foot has four mounting holes.

7. A steel box girder positioning and splicing device according to claim 3, characterized in that: The clamping seat (9) is provided with a ramp on the side close to the steel box girder body (6) for use.

8. A steel box girder positioning and splicing device according to claim 5, characterized in that: The construction platform (1) is externally connected to a controller, and the electric slide rail (2), servo motor (14) and hydraulic cylinder (16) are all electrically connected to the controller.

Images