Welding position paint surface cleaning device for steel structure pedestrian overpass

Abstract

The utility model belongs to the technical field of steel structure welding, and particularly relates to a welding position paint surface cleaning device for a steel structure pedestrian overpass, which comprises a first support frame and a second support frame, one end of the first support frame is hinged with one end of the second support frame, and a first conveying roller is rotatably arranged at the hinged position of the first support frame and the second support frame. A first through groove is formed in the first supporting frame, a second conveying roller is rotationally arranged in the first through groove, a second through groove is formed in the second supporting frame, a third conveying roller is rotationally arranged in the second through groove, a grinding belt is arranged on the first conveying roller, the second conveying roller and the third conveying roller, and a rotating assembly is arranged on the second conveying roller. Comprising an arc-shaped plate located between a first supporting frame and a second supporting frame, and a first arc-shaped groove is formed in one side of the arc-shaped plate. The device can be flexibly adjusted according to the actual angle of the welding position, it is ensured that the grinding belt is tightly attached to the welding face, and the grinding precision and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steel structure welding, and particularly relates to a welding position paint surface cleaning device for a steel structure pedestrian overpass. BACKGROUND

[0002] In modern urban construction, steel structure pedestrian overpasses are widely used due to their stable structure, beautiful appearance and relatively short construction period. However, welding is a key process for connecting various components during the construction of a steel structure pedestrian overpass. After welding, the paint surface treatment at the welding position is crucial for the appearance quality, corrosion resistance and service life of the overpass.

[0003] In the past, the paint surface at the welding position of a steel structure pedestrian overpass was usually cleaned by hand polishing. Workers held simple polishing tools and operated based on experience and physical strength. This method is not only extremely inefficient, but also consumes a lot of time and labor. Moreover, due to the subjectivity and instability of manual operation, it is difficult to ensure the accuracy and uniformity of polishing. Some parts may be over-polished, damaging the steel structure, while some parts may not be polished enough, leaving more paint and affecting subsequent corrosion treatment and aesthetic effect.

[0004] With the development of technology, some mechanized paint surface cleaning equipment has appeared. However, these devices have many limitations. On the one hand, their structure is fixed and rigid, and they cannot adapt to the complex angles and shapes of the welding position of a steel structure pedestrian overpass. Due to the characteristics of the welding process, the angles and shapes of the welding position are not completely consistent. The existing equipment cannot be flexibly adjusted according to the actual situation, resulting in the polishing belt not fully adhering to the welding surface, which greatly reduces the cleaning effect and causes paint residue or uneven cleaning.

[0005] Therefore, we propose a welding position paint surface cleaning device for a steel structure pedestrian overpass. This device can be flexibly adjusted according to the actual angle of the welding position, ensuring that the polishing belt closely adheres to the welding surface, improving the accuracy and effectiveness of polishing. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the utility model is to provide a welding position paint surface cleaning device for a steel structure pedestrian overpass. This device can be flexibly adjusted according to the actual angle of the welding position, ensuring that the polishing belt closely adheres to the welding surface, improving the accuracy and effectiveness of polishing.

[0007] The technical solution adopted by the utility model is as follows:

[0008] The utility model provides a welding position paint surface cleaning device for steel structure footbridge, including first support frame and second support frame, one end of first support frame is hinged with one end of second support frame, and first support frame and second support frame are hinged and are provided with first conveying roller, first support frame is opened with first through slot, and second conveying roller is rotatably arranged in first through slot, second support frame is opened with second through slot, and third conveying roller is rotatably arranged in second through slot, and the fourth conveying roller is arranged on the second conveying roller and is provided with rotating assembly.

[0009] Further, the arc-shaped plate is arranged between the first support frame and the second support frame, a first arc-shaped slot is formed on one side of the arc-shaped plate, a first arc-shaped movable plate connected with the first support frame is arranged in the first arc-shaped slot, a second arc-shaped slot is formed on the other side of the arc-shaped plate, a second arc-shaped movable plate connected with the second support frame is arranged in the second arc-shaped slot, and an elastic assembly is arranged on the outer side of the arc-shaped plate, and a fourth conveying roller tightly fitted with the polishing belt is arranged on the elastic assembly.

[0010] Further, the width of the first support frame is less than the width of the second support frame.

[0011] Further, the first conveying roller, the second conveying roller and the third conveying roller are all provided with a non-slip surface.

[0012] Further, the rotating assembly comprises a motor arranged on the first support frame, and the output end of the motor is connected with the second conveying roller.

[0013] Further, the elastic assembly comprises a hollow shell arranged on the arc-shaped plate, a spring is arranged in the hollow shell, a piston plate is arranged on the top of the spring, a movable rod is arranged on one side of the piston plate, and the fourth conveying roller is rotatably arranged on the U-shaped frame arranged on the end of the movable rod away from the piston plate and protruding out of the hollow shell.

[0014] Further, first threaded holes are formed on the first arc-shaped movable plate and the second arc-shaped movable plate, second threaded holes communicating with the first arc-shaped slot and the second arc-shaped slot are formed on both sides of the arc-shaped plate, and bolts are arranged in the second threaded holes and the first threaded holes.

[0015] The utility model achieves the following technical effects:

[0016] Firstly, the angle of the welding position is measured, then the first arc-shaped movable plate moves inside the first arc-shaped slot, the second arc-shaped movable plate moves inside the second arc-shaped slot, so as to adjust the angle of the first support frame and the second support frame, meanwhile, the fourth conveying roller is driven to move and closely contact with the polishing belt, so as to achieve the effect of adjusting the tension, after the adjustment is completed, the device is placed on the welding position to be cleaned, at this time, because the angle of the first support frame and the second support frame is the same as the angle of the welding position, so that the polishing belt closely contacts with the welding position, meanwhile, the rotating assembly is started, so as to drive the second conveying roller to rotate, so that the polishing belt rotates between the first conveying roller, the second conveying roller and the third conveying roller, so as to polish the welding position. The device can be flexibly adjusted according to the actual angle of the welding position, ensures that the polishing belt closely contacts with the welding surface, and improves the precision and effect of polishing. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the utility model;

[0018] Figure 2 is the front view of the utility model;

[0019] Figure 3 is the split view of the first support frame and the second support frame of the utility model;

[0020] Figure 4 is the structure schematic diagram of the polishing belt of the utility model;

[0021] Figure 5 is the structure schematic diagram of the elastic assembly of the utility model.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, the first support frame; 2, the second support frame; 3, the first conveying roller; 4, the first through slot; 5, the second conveying roller; 6, the second through slot; 7, the third conveying roller; 8, the polishing belt; 9, the arc-shaped plate; 10, the first arc-shaped slot; 11, the first arc-shaped movable plate; 12, the second arc-shaped slot; 13, the second arc-shaped movable plate; 14, the fourth conveying roller; 15, the motor; 16, the hollow shell; 17, the spring; 18, the piston plate; 19, the movable rod; 20, the U-shaped frame; 21, the first threaded hole; 22, the bolt. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the utility more clear and explicit, the utility is specifically described below in combination with examples.It should be understood that the following text is only used to describe one or several specific embodiments of the utility, and does not strictly limit the protection scope of the utility specifically requested.

[0025] AsFigures 1-5 The utility model discloses a welding position paint surface cleaning device for steel structure footbridge, including first support frame 1 and second support frame 2, first support frame 1 one end is hinged with second support frame 2 one end, and first support frame 1 and second support frame 2 hinge place rotationally arranged with first conveying roller 3, and first support frame 1 is set with first through slot 4, and the inside rotation of first through slot 4 is provided with second conveying roller 5, and second support frame 2 is set with second through slot 6, and the inside rotation of second through slot 6 is provided with third conveying roller 7, and first conveying roller 3, second conveying roller 5 and third conveying roller 7 are provided with polishing belt 8, and second conveying roller 5 is provided with rotating assembly,

[0026] Still including the arc plate 9 between first support frame 1 and second support frame 2, the arc plate 9 one side is set with first arc slot 10, and the inside of first arc slot 10 is provided with the first arc movable plate 11 connected with first support frame 1, and the arc plate 9 other side is set with second arc slot 12, and the inside of second arc slot 12 is provided with the second arc movable plate 13 connected with second support frame 2, and the arc plate 9 outside is provided with elastic component, and the fourth conveying roller 14 that is closely attached with polishing belt 8 is set on elastic component.

[0027] Wherein, the width of first support frame 1 is less than the width of second support frame 2, so that the first support frame 1 is hingedly mounted on the second support frame 2, and the hinge connection is hingedly connected by a rotating shaft, and the rotating shaft is provided with the first conveying roller 3, so that the first conveying roller 3 can be installed without affecting the angle change.

[0028] Meanwhile, the first conveying roller 3, the second conveying roller 5 and the third conveying roller 7 are all provided with a non-slip surface, which can increase the friction and ensure normal work.

[0029] The rotating assembly includes a motor 15 disposed on the first support frame 1, and the output end of the motor 15 is connected with the second conveying roller 5. The motor 15 drives the second conveying roller 5 to rotate, so that the polishing belt 8 is conveyed and polished.

[0030] The elastic component includes a hollow shell 16 disposed on the arc plate 9, a spring 17 is disposed in the hollow shell 16, a piston plate 18 is disposed on the top of the spring 17, an active rod 19 is disposed on one side of the piston plate 18, and a U-shaped frame 20 is installed on the end of the active rod 19 away from the piston plate 18 and penetrates out of the hollow shell 16, and the fourth conveying roller 14 is rotatably disposed on the U-shaped frame 20.

[0031] When the angle changes, the spring 17 provides a force to the piston plate 18 to drive the active rod 19 and the fourth conveying roller 14 on the U-shaped frame 20 to always contact the polishing belt 8, thereby achieving the effect of adjusting the tension.

[0032] The first arc-shaped movable plate 11 and the second arc-shaped movable plate 13 are both provided with first threaded holes 21, and the arc-shaped plate 9 is provided with second threaded holes on both sides and communicated with the first arc-shaped groove 10 and the second arc-shaped groove 12 respectively, and the second threaded holes and the first threaded holes 21 are internally provided with bolts 22, which are locked in the first threaded holes 21 and the second threaded holes when the angle adjustment is completed, thereby facilitating the work.

[0033] The working principle of the utility model is as follows: firstly, the angle of the welding position is measured, then the first arc-shaped movable plate 11 is moved in the first arc-shaped groove 10, the second arc-shaped movable plate 13 is moved in the second arc-shaped groove 12, thereby adjusting the angle of the first support frame 1 and the second support frame 2, and the fourth conveying roller 14 is driven by the elastic assembly to move and closely contact with the polishing belt 8, thereby achieving the effect of adjusting the tension, after the adjustment is completed, the device is placed on the welding position to be cleaned, at this time, because the angle of the first support frame 1 and the second support frame 2 is the same as the angle of the welding position, the polishing belt 8 closely contacts with the welding position, and the rotating assembly is started, thereby driving the second conveying roller 5 to rotate, so that the polishing belt 8 rotates between the first conveying roller 3, the second conveying roller 5 and the third conveying roller 7, thereby polishing the welding position. The device can be flexibly adjusted according to the actual angle of the welding position, ensure that the polishing belt 8 closely contacts with the welding surface, and improve the precision and effect of polishing.

[0034] The above is only the preferred embodiment of the utility model, it should be pointed out that, for the ordinary skilled in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field, without special description and limitation.

Claims

1. A paint cleaning device for welding positions of a steel structure pedestrian bridge, comprising a first support frame (1) and a second support frame (2), characterized in that: One end of the first support frame (1) is hinged to one end of the second support frame (2); a first conveying roller (3) is rotatably provided at the hinged joint of the first support frame (1) and the second support frame (2); a first through slot (4) is provided on the first support frame (1); a second conveying roller (5) is rotatably provided inside the first through slot (4); a second through slot (6) is provided on the second support frame (2); a third conveying roller (7) is rotatably provided inside the second through slot (6); a grinding belt (8) is provided on the first conveying roller (3), the second conveying roller (5) and the third conveying roller (7); and a rotating assembly is provided on the second conveying roller (5); The invention also includes an arc plate (9) located between the first support frame (1) and the second support frame (2), wherein a first arc groove (10) is provided on one side of the arc plate (9), and a first arc movable plate (11) connected to the first support frame (1) is provided inside the first arc groove (10), and a second arc groove (12) is provided on the other side of the arc plate (9), and a second arc movable plate (13) connected to the second support frame (2) is provided inside the second arc groove (12), and an elastic component is provided on the outer side of the arc plate (9), and a fourth conveying roller (14) tightly fitted with the grinding belt (8) is provided on the elastic component.

2. The paint surface cleaning device for welding position of a steel structure pedestrian bridge according to claim 1 is characterized in that: The width of the first support frame (1) is smaller than the width of the second support frame (2).

3. The paint surface cleaning device for welding position of a steel structure pedestrian bridge according to claim 1 is characterized in that: The first conveying roller (3), the second conveying roller (5) and the third conveying roller (7) are all provided with anti-slip surfaces.

4. The paint surface cleaning device for welding position of a steel structure pedestrian bridge according to claim 1 is characterized in that: The rotating assembly comprises a motor (15) arranged on the first support frame (1), and an output end of the motor (15) is connected to the second conveying roller (5).

5. The device for cleaning the paint surface at the welding position of a steel structure pedestrian bridge according to claim 1, characterized in that: The elastic component includes a hollow shell (16) arranged on the arc plate (9), a spring (17) is arranged inside the hollow shell (16), a piston plate (18) is arranged on the top of the spring (17), a movable rod (19) is arranged on one side of the piston plate (18), and the end of the movable rod (19) away from the piston plate (18) passes through the hollow shell (16) and is installed with a U-shaped frame (20), and the fourth conveying roller (14) is rotatably arranged on the U-shaped frame (20).

6. The device for cleaning the welded area paint surface of a steel structure pedestrian bridge according to claim 1, characterized in that: A first threaded hole (21) is provided on each of the first arc-shaped movable plate (11) and the second arc-shaped movable plate (13); a second threaded hole is provided on each side of the arc-shaped plate (9) and is connected to the first arc-shaped groove (10) and the second arc-shaped groove (12) respectively; bolts (22) are provided inside the second threaded hole and the first threaded hole (21).

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