An automatic bridge steel box deep field installation post-welding seam shot blasting derusting equipment

Abstract

This application discloses an automated shot blasting and rust removal device for weld seams after on-site installation of steel box girder bridges. Belonging to the field of weld shot blasting and rust removal, the device includes two side plates fixedly connected by four connecting plates. A lead screw is rotatably connected to the middle of the two side plates. A drive motor is installed on the outer wall of each side plate. A slider is threadedly connected to the outer edge of the lead screw. A connecting frame is installed on the outer wall of the slider, and a movable frame is installed on the inner side of the connecting frame. A shot blasting head is installed inside the movable frame. By driving the drive motor to rotate the lead screw, the slider moves the movable frame to a position where the weld seam is directly below the movable frame. Then, the output device drives the shot blasting head to perform shot blasting and rust removal on the weld seam. The device is small in size, easy to move and install, and convenient for users to adjust and use. It saves time and effort, improves work efficiency, and reduces hazards to personnel.

Description

Technical Field

[0001] This application relates to the field of shot blasting and rust removal technology for weld seams, and in particular to an automated shot blasting and rust removal device for weld seams after deep on-site installation of steel box girder bridges. Background Technology

[0002] As the core load-bearing component of modern long-span bridges, the quality of the welds of steel box girders directly affects structural safety, so weld shot blasting equipment is required.

[0003] Traditional manual rust removal suffers from problems such as low efficiency, unstable quality, and risks associated with working at heights. In the past five years, the industry has attempted to introduce semi-automatic equipment, but due to the poor adaptability of the curved surface of the bridge beam and insufficient positioning accuracy, it still relies on manual assistance. Moreover, the equipment is bulky and cannot meet the flexible construction needs after on-site installation. Manual operation is highly applicable but inefficient. Therefore, this application proposes an automated shot blasting rust removal equipment for weld seams of steel box girder bridges after on-site installation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automated shot blasting and rust removal device for weld seams after on-site installation of steel box girder bridges, which overcomes the deficiencies of existing technologies and aims to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this application adopts the following technical solution: an automated shot blasting and rust removal device for weld seams after on-site installation of steel box girder bridges, comprising two side plates, the two side plates being fixedly connected by four connecting plates, a lead screw being rotatably connected to the middle of the two side plates, a drive motor being installed on the outer wall of the side plates, a slider being threadedly connected to the outer edge of the lead screw, a connecting frame being installed on the outer wall of the slider, a movable frame being installed on the inner side of the connecting frame, a shot blasting head being installed inside the movable frame, and an output device for driving the shot blasting head to operate and remove rust being installed on the outer wall of the movable frame.

[0006] In a preferred embodiment, a second connecting frame is installed on the side of the movable frame away from the first connecting frame. A limiting block is installed inside the second connecting frame, and a limiting rod is fixedly connected between the two side plates. The limiting block is slidably connected to the outer edge of the limiting rod.

[0007] By adopting the above technical solution, it is possible to limit the side of the moving frame away from the slider, ensuring the synchronicity and stability of both sides of the moving frame during movement, and ensuring that it will not easily deviate from its position.

[0008] In a preferred embodiment, two guide rails are installed on the top of the four connecting plates, and limit holes are formed on the inner walls of both connecting frame one and connecting frame two, with the guide rails disposed inside the limit holes.

[0009] By adopting the above technical solution, it is possible to limit the movement of connecting frame one and connecting frame two, ensuring that they move continuously in a straight line, and further ensuring that the slider and the limiting block move in a straight line.

[0010] In a preferred embodiment, the power output shaft of the drive motor is fixedly connected to a hexagonal rod, and the inner wall of the lead screw is provided with a hexagonal hole, and the hexagonal rod is inserted into the inner wall of the hexagonal hole.

[0011] By adopting the above technical solution, the power of the drive motor output shaft rotation can be transmitted to the lead screw using a hexagonal rod, thereby realizing power transmission and facilitating the separation between the drive motor and the lead screw.

[0012] In a preferred embodiment, a positioning frame is installed on the outer wall of the side plate, and the positioning frame is fixedly connected to the side of the drive motor away from the hexagonal rod.

[0013] By adopting the above technical solution, the drive motor can be positioned to ensure that it can be stably installed on the outer wall of the side plate, thereby ensuring that the drive motor will not shake randomly during operation.

[0014] In a preferred embodiment, the inner side of the side plate is fixedly connected to the outer ring of the bearing, and the inner ring of the bearing is fixedly connected to the end of the lead screw away from the hexagonal rod.

[0015] By adopting the above technical solution, the lead screw can be used to limit its rotation, ensuring its stability during rotation and preventing it from easily shifting or swaying in position.

[0016] In a preferred embodiment, a shot blasting machine is mounted on the top of the mobile frame, and a through hole is provided on the inner wall of the side plate. The output shaft of the drive motor is rotatably connected to the inner wall of the through hole.

[0017] By adopting the above technical solution, it can be ensured that the output shaft of the drive motor will not interfere with the side plate when rotating, thereby ensuring the stability of the drive motor during operation.

[0018] The beneficial effects of this application are: This automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges uses a drive motor to rotate a lead screw, which in turn moves a sliding block to position a mobile frame directly below it. The output device then drives a shot blasting head to perform shot blasting and rust removal on the weld seam. The device is compact in size, easy to move and install, and convenient for users to adjust and use. It saves time and labor, improves work efficiency, and reduces hazards to personnel.

[0019] This automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges allows the drive motor to be removed from the outer wall of the side plate by removing the positioning frame, and then the hexagonal rod can be taken out from the inner wall of the hexagonal hole, which facilitates the replacement of the drive motor. In addition, the drive motor can be placed separately during transportation, reducing space occupation and effectively protecting the drive motor from bumps and knocks. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the structure from below in this application; Figure 3 This is a front view structural diagram of this application; Figure 4 This is a schematic diagram of the unfolded structure of this application; Figure 5 This is a schematic diagram of the hexagonal hole structure of this application.

[0021] The following are the labels in the diagram: 1. Side plate; 2. Connecting plate; 3. Lead screw; 4. Drive motor; 5. Slider; 6. Connecting frame one; 7. Moving frame; 8. Connecting frame two; 9. Limiting block; 10. Limiting rod; 11. Guide rail; 12. Limiting hole; 13. Output device; 14. Shot blasting head; 15. Hexagonal rod; 16. Positioning frame; 17. Hexagonal hole; 18. Bearing; 19. Shot blasting machine. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1-5 An automated shot blasting and rust removal device for weld seams of steel box girder bridges after on-site installation includes two side plates 1, which are fixedly connected by four connecting plates 2. A lead screw 3 is rotatably connected to the middle of the two side plates 1. A drive motor 4 is installed on the outer wall of the side plates 1. A slider 5 is threadedly connected to the outer edge of the lead screw 3. A connecting frame 6 is installed on the outer wall of the slider 5. A movable frame 7 is installed on the inner side of the connecting frame 6. A shot blasting head 14 is installed inside the movable frame 7. An output device 13 for driving the shot blasting head 14 to perform rust removal is installed on the outer wall of the movable frame 7.

[0024] See Figure 3 and Figure 4A second connecting frame 8 is installed on the side of the movable frame 7 away from the first connecting frame 6. A limit block 9 is installed inside the second connecting frame 8. A limit rod 10 is fixedly connected between the two side plates 1. The limit block 9 is slidably connected to the outer edge of the limit rod 10, so that it can be used to limit the side of the movable frame 7 away from the slider 5, ensuring the synchronicity and stability of both sides of the movable frame 7 when it moves, and ensuring that it will not easily deviate from its position.

[0025] See Figure 2 and Figure 4 Two guide rails 11 are installed on the top of the four connecting plates 2. Limiting holes 12 are opened on the inner walls of connecting frame 1 6 and connecting frame 2 8. The guide rails 11 are set inside the limiting holes 12, so that they can be used to limit the moving connecting frame 1 6 and connecting frame 2 8, ensuring that they move continuously in a straight line, and further ensuring that the slider 5 and the limiting block 9 move in a straight line.

[0026] See Figure 4 and Figure 5 The power output shaft of the drive motor 4 is fixedly connected to a hexagonal rod 15. The inner wall of the lead screw 3 is provided with a hexagonal hole 17. The hexagonal rod 15 is inserted into the inner wall of the hexagonal hole 17, so that the rotational force of the output shaft of the drive motor 4 can be transmitted to the lead screw 3 by the hexagonal rod 15, thereby realizing power transmission, and facilitating the separation between the drive motor 4 and the lead screw 3.

[0027] See Figure 4 A positioning frame 16 is installed on the outer wall of the side plate 1. The positioning frame 16 is fixedly connected to the side of the drive motor 4 away from the hexagonal rod 15, so that it can be used to position the drive motor 4, ensuring that the drive motor 4 can be stably installed on the outer wall of the side plate 1, and thus ensuring that the drive motor 4 will not shake randomly during operation.

[0028] See Figure 1 The inner side of the side plate 1 is fixedly connected to the outer ring of the bearing 18, and the inner ring of the bearing 18 is fixedly connected to the end of the lead screw 3 away from the hexagonal rod 15, so that it can be used to limit the lead screw 3 when rotating, ensuring its stability when rotating, and ensuring that it will not easily shift or swing in position when rotating.

[0029] See Figure 1 and Figure 4 The top of the mobile frame 7 is equipped with a shot blasting machine 19. The inner wall of the side plate 1 has a through hole. The output shaft of the drive motor 4 is rotatably connected to the inner wall of the through hole, which ensures that the output shaft of the drive motor 4 will not interfere with the side plate 1 when rotating, thereby ensuring the stability of the drive motor 4 during operation.

[0030] Working principle: First, the two side plates 1 can be installed on the steel box of the bridge. The drive motor 4 drives the lead screw 3 to rotate, and then the slider 5 moves the position of the moving frame 7 so that the installation weld is located directly below the moving frame 7. Then, the output device 13 drives the shot blasting head 14 to perform shot blasting and rust removal on the weld. The device is small in size and easy to move and install, which makes it easy for users to adjust and use. It saves time and effort, improves work efficiency, and reduces the harm to personnel. Furthermore, removing the positioning frame 16 can remove the drive motor 4 from the outer wall of the side plate 1, and then the hexagonal rod 15 can be taken out from the inner wall of the hexagonal hole 17, which makes it easy to replace the drive motor 4. In addition, the drive motor 4 can be placed separately during transportation to reduce space occupation and effectively protect the drive motor 4 from bumps.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. An automated shot blasting and rust removal device for weld seams after on-site installation of steel box girder bridges, comprising two side plates (1), characterized in that, The two side plates (1) are fixedly connected by four connecting plates (2). A lead screw (3) is rotatably connected to the middle of the two side plates (1). A drive motor (4) is installed on the outer wall of the side plate (1). A slider (5) is threadedly connected to the outer edge of the lead screw (3). A connecting frame (6) is installed on the outer wall of the slider (5). A movable frame (7) is installed on the inner side of the connecting frame (6). A shot blasting head (14) is installed inside the movable frame (7). An output device (13) for driving the shot blasting head (14) to run and remove rust is installed on the outer wall of the movable frame (7).

2. The automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges according to claim 1, characterized in that, The movable frame (7) is equipped with a connecting frame two (8) on the side away from the connecting frame one (6). A limit block (9) is installed inside the connecting frame two (8). A limit rod (10) is fixedly connected between the two side plates (1). The limit block (9) is slidably connected to the outer edge of the limit rod (10).

3. The automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges according to claim 1, characterized in that, Two guide rails (11) are installed on the top of the four connecting plates (2). Limiting holes (12) are opened on the inner walls of the first connecting frame (6) and the second connecting frame (8). The guide rails (11) are located inside the limiting holes (12).

4. The automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges according to claim 1, characterized in that, The power output shaft of the drive motor (4) is fixedly connected to a hexagonal rod (15), and the inner wall of the lead screw (3) is provided with a hexagonal hole (17), and the hexagonal rod (15) is inserted into the inner wall of the hexagonal hole (17).

5. The automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges according to claim 1, characterized in that, A positioning frame (16) is installed on the outer wall of the side plate (1), and the positioning frame (16) is fixedly connected to the side of the drive motor (4) away from the hexagonal rod (15).

6. The automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges according to claim 1, characterized in that, The inner side of the side plate (1) is fixedly connected to the outer ring of the bearing (18), and the inner ring of the bearing (18) is fixedly connected to the end of the lead screw (3) away from the hexagonal rod (15).

7. The automated shot blasting and rust removal equipment for weld seams after on-site installation of steel box girder bridges according to claim 1, characterized in that, A shot blasting machine (19) is installed on the top of the mobile frame (7), and a through hole is opened on the inner wall of the side plate (1). The output shaft of the drive motor (4) is rotatably connected to the inner wall of the through hole.

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