Prefabricated box girder top plate reinforcing steel bar supporting device

Abstract

The utility model provides a prefabricated box girder top plate reinforcing steel bar supporting device, belongs to the technical field of building production equipment, and aims to solve the problems that construction efficiency is low and stability of lap joint is uneven due to the fact that lap joint of a box girder top reinforcing steel bar framework needs to be carried out by constructors along with lap joint movement of workers through a lifting platform or a lifting frame for construction. Comprising a slideway mechanism, a supporting device and a walking mechanism, the slideway mechanism comprises a plurality of groups of slide rail parts which are vertically distributed in an array, each group of slide rail parts comprises two pre-embedded columns, and rollers are mounted at the tops of the pre-embedded columns; the supporting device comprises a plurality of supporting frames distributed in an array mode, the bottoms of the multiple supporting frames are connected through walking pipes, the walking pipes are arranged on the sliding rail pieces, and a top plate is laid on the tops of the multiple supporting frames. The walking mechanism comprises at least one transmission device, the bottoms of the multiple supporting frames are connected with a linkage center pipe, and the transmission device is supported below the linkage center pipe to drive the linkage center pipe to move.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction production equipment, and more specifically, relates to a prefabricated box beam top plate steel bar supporting device. Background Art

[0002] Box girder prefabrication involves the production of large prefabricated components required for railway construction. This involves several key steps. First, a suitable prefabrication site must be established, along with infrastructure to support the fabrication, storage, and transportation of the beams. Next, a beam-making pedestal must be constructed as a foundation platform, and steel formwork designed and placed on the pedestal. Finally, the steel skeleton, including main reinforcement, stirrups, and various embedded components, must be tied within the steel mold according to the drawings.

[0003] The box girder is in the shape of a hollow box. When its steel frame is built, the two sides can be built with molds as supports. However, the top steel frame needs to be spliced by construction workers using a lifting platform or a lifting frame for construction to follow the workers' splicing and movement. The construction efficiency is low and the stability of the splicing is uneven.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a prefabricated box beam top plate steel bar support device is provided in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a prefabricated box girder top plate steel bar support device to solve the problem that the lap joint of the steel bar skeleton at the top of the box girder requires construction personnel to use a lifting platform or a lifting frame for construction to follow the workers to move the lap joint, resulting in low construction efficiency and uneven lap joint stability.

[0006] The purpose and effect of the prefabricated box girder top plate reinforcement support device of the utility model are achieved by the following specific technical means:

[0007] A prefabricated box girder top plate reinforcement support device, comprising a slide mechanism, a support device and a walking mechanism; the slide mechanism comprises a plurality of groups of slide rail members distributed in a vertical array, each group of slide rail members comprises two embedded columns, and rollers are installed on the tops of the embedded columns; the support device comprises a plurality of support frames distributed in an array, the bottoms of the plurality of support frames are connected by walking tubes, the walking tubes are placed on the slide rail members, and top plates are laid on the tops of the plurality of support frames; the walking mechanism comprises at least one transmission device, the bottoms of the plurality of support frames are connected to a linkage central tube, and the transmission device is supported under the linkage central tube to drive the linkage central tube to move.

[0008] Furthermore, the transmission device includes a mounting frame, on which a reducer and a transmission gear are respectively provided. The reducer drives the transmission gear to rotate, and a rack plate is provided at the bottom of the linkage center tube, and the transmission gear is meshed with the rack plate.

[0009] Furthermore, the mounting frame is provided with two sets of symmetrical positioning guard plates, the transmission gear extends out through the gap between the two positioning guard plates and engages with the rack plate, and the mounting frame is provided with a supporting pulley corresponding to the walking tube.

[0010] Furthermore, the support frame includes two guide columns and a guide sleeve frame movably mounted on the two guide columns. The two guide columns are connected by a connecting rod. The guide sleeve frame and the connecting rod are connected by an oil cylinder. The linkage center pipe is arranged below multiple connecting rods, and the walking pipe is arranged at the bottom of the corresponding guide column.

[0011] Furthermore, a support rib is provided on the top of the guide sleeve frame, and a limit plate is provided at both ends of the support rib.

[0012] Furthermore, a guide block is provided on the top of the embedded column. The guide block is a U-shaped frame with a partition in the center. A roller is rotatably connected to the top of the guide block, and limit wheels are provided at both ends of the roller.

[0013] Furthermore, the top plate includes a middle section plate, both ends of the middle section plate are connected to inclined variable section plates, and the outer ends of the variable section plates are connected to end section plates parallel to the middle section plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The transmission device drives the support device to move through the slide mechanism, and moves the top plate and the support device to the corresponding position in the middle of the box beam mold, providing a positioning platform for the construction of the steel frame on the top of the box beam, making the construction of the steel frame on the top of the box beam more efficient, reducing labor and labor intensity, and at the same time, the steel frame construction is more stable and uniform.

[0016] 2. It provides a stable and reliable operating platform, avoiding the problem of component deformation caused by repeated installation and disassembly of the support frame and lifting, thus extending the service life of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a prefabricated box beam top plate steel bar supporting device of the utility model.

[0018] Figure 2 It is a partial structural diagram of the steel bar support system in the present utility model.

[0019] Figure 3 It is a structural diagram of the transmission device in the utility model.

[0020] Figure 4 It is a structural diagram of the support frame in the utility model.

[0021] Figure 5It is a structural diagram of the slide rail component in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the top plate in the utility model.

[0023] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0024] 1. Slide mechanism; 2. Transmission device; 3. Support frame; 4. Walking tube; 5. Linkage center tube; 6. Rack plate; 7. Top plate; 101. Embedded column; 102. Guide block; 103. Roller; 104. Limiting wheel; 201. Mounting frame; 202. Reducer; 203. Transmission gear; 204. Positioning guard plate; 205. Support pulley; 301. Guide column; 302. Connecting rod; 303. Guide sleeve frame; 304. Support rib; 305. Cylinder; 306. Limiting plate; 701. Middle section plate; 702. Variable section plate; 703. End section plate. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0028] As attached Figure 1 To the attached Figure 6 As shown:

[0029] The utility model provides a prefabricated box beam top plate reinforcement support device, comprising a slide mechanism 1, a support device and a walking mechanism;

[0030] The slide mechanism 1 includes a plurality of slide rail members distributed in a vertical array, such as Figure 2 and Figure 5 As shown, each set of slide rails includes two embedded columns 101 with rollers 103 mounted on top of the embedded columns 101. The multiple rollers 103 in the array form a slide rail route, as shown in FIG. Figure 5 As shown, a guide block 102 is provided on the top of the embedded column 101. The guide block 102 is a U-shaped frame with a partition in the center. The top of the guide block 102 is rotatably connected to a roller 103. The top of the embedded column 101 passes through the guide block 102 and is connected to the central partition to increase the stability of the guide block 102 and the roller 103. Limit wheels 104 are provided at both ends of the roller 103 to limit the objects sliding on the roller 103.

[0031] The support device includes a plurality of support frames 3 distributed in an array. The bottoms of the plurality of support frames 3 are connected by a running tube 4, which is placed on a slide rail. A top plate 7 is laid on top of the plurality of support frames 3. Through the arrangement of the running tube 4, the support device as a whole can drive the top plate 7 to move on the slide mechanism 1, and the movement of the support device is driven by the running mechanism.

[0032] The walking mechanism includes at least one transmission device 2, such as Figure 1 and Figure 3 As shown, three transmission devices 2 are shown in this embodiment. A plurality of support frames 3 are connected to a linkage center tube 5 at the bottom. The transmission device 2 is supported under the linkage center tube 5 to drive the linkage center tube 5 to move. The transmission device 2 includes a mounting frame 201. A reducer 202 and a transmission gear 203 are respectively provided on the mounting frame 201. The reducer 202 drives the transmission gear 203 to rotate. A rack plate 6 is provided at the bottom of the linkage center tube 5. The transmission gear 203 is engaged with the rack plate 6. The rack plate 6 is driven by the reducer 202 to drive the entire support device to move, and the top plate 7 and the support device are moved to the corresponding position in the middle of the box beam mold, providing a positioning platform for the construction of the steel bar skeleton at the top of the box beam, making the construction of the steel bar at the top of the box beam more efficient, avoiding the problem of component deformation caused by repeated installation and disassembly and hoisting of the support frame 3, and extending the service life of the component.

[0033] This embodiment is equipped with a 100 reduction ratio RV reducer, and the reducer is equipped with a 2KW servo motor. Figure 3As shown, there are two transmission gears 203, one is directly driven and connected to the reducer, and the other is located above and connected to the mounting frame 201 through a bearing seat, and the two transmission gears 203 are meshed with each other. The transmission gear 203 located above is meshed with the rack plate 6. The transmission devices 2 are located at both ends of the box beam mold, and one of the transmission devices 2 is used as the conveying starting position. A position sensor is installed on the other transmission device 2, and an instruction is issued through external control. The PLC controls the servo motor to drive the transmission device 2 to work. When the position sensor senses that the support device has reached the specified position, it sends an instruction to the PLC. After receiving the instruction, the PLC issues a stop command for the servo motor, thereby realizing automatic operation and reducing labor.

[0034] Among them, two groups of symmetrical positioning guard plates 204 are provided on the mounting frame 201, and the transmission gear 203 extends out through the gap between the two positioning guard plates 204 and engages with the rack plate 6. The channel flowing out between the two positioning guard plates 204 can position the linkage center pipe 5 in the support device 2 to avoid the displacement of the walking pipe 4 during the transportation process, so that the walking pipe 4 can fall accurately onto the roller 103. The mounting frame 201 is provided with a support pulley 205 corresponding to the walking pipe 4. The support pulley 205 can support the walking pipe 4 in advance to prevent the support device 2 from tipping over before moving.

[0035] like Figure 2 and Figure 4 As shown, the support frame 3 includes two guide columns 301 and a guide sleeve frame 303 movably mounted on the two guide columns 301. The two guide columns 301 are connected by a connecting rod 302. The guide sleeve frame 303 and the connecting rod 302 are connected by an oil cylinder 305. The linkage center pipe 5 is arranged below multiple connecting rods 302, and the walking pipe 4 is arranged at the bottom of the corresponding guide column 301. A top plate 7 is installed on the top of the guide sleeve frame 303, and a support rib 304 is provided on the top of the guide sleeve frame 303. Limiting plates 306 are provided at both ends of the support rib 304. The limiting plates 306 limit the position of the top plate 7 so that the top plate 7 is installed on the support rib 304. When the entire support device moves to the specified position in the box beam mold, the oil cylinder 305 can drive the top plate 7 to lift and adjust the top plate 7 to be parallel to the top of both sides of the box beam mold.

[0036] like Figure 6 As shown, the top plate 7 includes a middle section plate 701, both ends of the middle section plate 701 are connected with inclined variable section plates 702, and the outer ends of the variable section plates 702 are connected with end section plates 703 parallel to the middle section plate 701, so that the box girder steel frame can be bundled in a bundled manner with lowered edges, reinforced and thickened, which solves the problem that the installation accuracy of the steel bars of the variable cross-section part at the end of the box girder is difficult to control.

[0037] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A prefabricated box girder top plate reinforcement support device, characterized in that: It comprises a slide mechanism (1), a supporting device and a walking mechanism; the slide mechanism (1) comprises a plurality of groups of slide rail members distributed in a vertical array, each group of slide rail members comprises two embedded columns (101), and rollers (103) are mounted on the tops of the embedded columns (101); The support device comprises a plurality of support frames (3) distributed in an array, the bottoms of the plurality of support frames (3) are connected by a running pipe (4), the running pipe (4) is placed on a slide rail, and a top plate (7) is laid on the top of the plurality of support frames (3); The walking mechanism comprises at least one transmission device (2), the bottoms of the plurality of support frames (3) are connected to a linkage central tube (5), and the transmission device (2) is supported below the linkage central tube (5) to drive the linkage central tube (5) to move.

2. A prefabricated box beam top plate reinforcement support device according to claim 1, characterized in that: The transmission device (2) includes a mounting frame (201), a reducer (202) and a transmission gear (203) are respectively provided on the mounting frame (201), the reducer (202) drives the transmission gear (203) to rotate, a rack plate (6) is provided at the bottom of the linkage center tube (5), and the transmission gear (203) is meshed with the rack plate (6).

3. A prefabricated box beam top plate reinforcement support device according to claim 2, characterized in that: Two sets of symmetrical positioning guard plates (204) are provided on the mounting frame (201), the transmission gear (203) extends through the gap between the two positioning guard plates (204) and meshes with the rack plate (6), and a supporting pulley (205) corresponding to the running pipe (4) is provided on the mounting frame (201).

4. The prefabricated box girder top plate reinforcement support device according to claim 1, characterized in that: The support frame (3) includes two guide columns (301) and a guide sleeve frame (303) movably sleeved on the two guide columns (301). The two guide columns (301) are connected by a connecting rod (302). The guide sleeve frame (303) and the connecting rod (302) are connected by an oil cylinder (305). The linkage center pipe (5) is arranged below the multiple connecting rods (302), and the running pipe (4) is arranged at the bottom of the corresponding guide column (301).

5. A prefabricated box beam top plate reinforcement support device according to claim 4, characterized in that: A support rib (304) is provided on the top of the guide sleeve frame (303), and limiting plates (306) are provided at both ends of the support rib (304).

6. The prefabricated box beam top plate reinforcement support device according to claim 1, characterized in that: A guide block (102) is provided on the top of the embedded column (101), and the guide block (102) is a U-shaped frame with a partition in the center. A roller (103) is rotatably connected to the top of the guide block (102), and limiting wheels (104) are provided at both ends of the roller (103).

7. The prefabricated box beam top plate reinforcement support device according to claim 1, characterized in that: The top plate (7) comprises a middle section plate (701), both ends of the middle section plate (701) are connected to inclined variable section plates (702), and the outer ends of the variable section plates (702) are connected to end section plates (703) parallel to the middle section plate (701).

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