Magnetic attraction coating trolley for steel box girder

Abstract

The utility model discloses a steel box girder magnetic attraction coating trolley which comprises a driving assembly, the driving assembly is connected with a plurality of magnetic wheels, and the magnetic wheels can be magnetically attracted to the surface of a steel box girder and are driven by the driving assembly to rotate, so that the trolley can run on the surface of the steel box girder; the coating assembly is used for coating the surface of the steel box girder in the running process of the trolley; the trolley can be magnetically attracted to the surface of the steel box girder through the magnetic wheels, the magnetic wheels are driven by the driving assembly to rotate, so that the trolley can run on the surface of the steel box girder, and in the running process of the trolley, the coating assembly arranged on the trolley can coat welding seams on the surface of the steel box girder; the purposes of improving the welding seam coating efficiency of the steel box girder to a certain extent and avoiding high-altitude operation of workers are achieved.

Description

Technical Field

[0001] The utility model relates to a magnetic attraction painting trolley for a steel box beam. Background Art

[0002] In the field of urban transportation construction, steel box girders are important components of various types of bridge structures, such as highway bridges and truss bridges.

[0003] At present, steel structure bridges are usually constructed by modular production in factories and welding and assembling on site. In order to achieve anti-corrosion and aesthetic effects, the surface of the steel box beam needs to be painted.

[0004] At present, the commonly used surface coating construction methods for steel box girders are mostly as recorded in the patent document of Chinese Patent Publication No. CN114753257A. The circumferential surface of the steel box girder in the length direction will be painted during prefabrication in the factory. However, in order to meet the welding needs when the steel box girder is assembled on site, a width of 100mm is required on each side of the welding joint during the factory prefabrication stage without painting, and the workers will paint the welds after the on-site welding is completed.

[0005] Manually painting the welds of steel box girders is not only inefficient, but workers are often required to lean outwards to the outside of the bridge to paint the welds, which poses a safety hazard of falling from heights. Utility Model Content

[0006] The purpose of the utility model is to provide a technical solution of a magnetic painting trolley for steel box girders to address the deficiencies in the prior art, which can not only increase the efficiency of painting the welds of steel box girders to a certain extent, but also avoid the safety hazards of workers working at high altitudes.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A magnetic coating trolley for steel box beams, comprising

[0009] Driving assembly, used to output power to drive the trolley to run;

[0010] The driving assembly is connected to a magnetic wheel, which can be magnetically attracted to the surface of the steel box girder and rotate under the drive of the driving assembly, so that the trolley can travel on the surface of the steel box girder; it also includes a painting assembly, which is used to paint the surface of the steel box girder while the trolley is traveling.

[0011] By adopting the above technical solution, the trolley can be magnetically attracted to the surface of the steel box girder through the magnetic wheels, and the magnetic wheels rotate under the drive of the driving component, so that the trolley can travel on the surface of the steel box girder. During the driving process of the trolley, the painting component arranged on the trolley can paint the welds on the surface of the steel box girder, thereby increasing the painting efficiency of the steel box girder welds to a certain extent, while avoiding the purpose of workers working at high altitudes.

[0012] Furthermore, it also includes a pressure control component, which is control-connected to the drive component. The pressure control component can monitor the positional relationship between the trolley and the steel box girder, and control the working state of the drive component according to the positional relationship between the two.

[0013] Furthermore, the pressure control component includes a resistance member, a compression spring and a pressure sensor. The resistance member is located at the front side of the trolley. The resistance member is telescopically connected to the trolley through the compression spring. When the magnetic wheel is magnetically attracted to the surface of the steel box beam, the resistance member will cooperate with the surface of the steel box beam and cause the compression spring to be compressed. The pressure sensor is used to monitor the telescopic state of the compression spring.

[0014] Furthermore, one end of the abutment is configured as a ball.

[0015] Furthermore, the painting assembly includes a paint box and a roller. The paint box is used to store paint and output the paint to the roller. The surface of the roller can cooperate with the surface of the steel box beam to abut against the surface of the steel box beam, so that the paint is applied to the surface of the steel box beam.

[0016] Furthermore, the roller includes a first roller and a second roller, the first roller is connected to a spring bracket, the first roller is connected to the trolley through the spring bracket, the surface of the first roller exceeds the contact surface between the magnetic wheel and the steel box beam, when the magnetic wheel is magnetically attracted to the surface of the steel box beam, the first roller cooperates with the surface of the steel box beam and abuts against it, causing the spring bracket to be compressed; the first roller and the second roller rotate in contact.

[0017] Furthermore, the paint box includes a discharge port, which is connected to an oil pump. The discharge port corresponds to the second roller, and the paint box can output paint to the second roller through the cooperation of the oil pump and the discharge port.

[0018] Furthermore, a baffle is provided on one side of the discharge port.

[0019] Furthermore, a material collecting plate is formed on one side of the first roller and the second roller, and the material collecting plate half surrounds the first roller and the second roller.

[0020] Furthermore, it also includes a pressure control component, and the oil pump is controllably connected to the pressure control component.

[0021] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0022] 1. The utility model realizes coating of the weld on the surface of the steel box girder by magnetically attracting the trolley to the surface of the steel box girder, which not only improves the coating efficiency to a certain extent, but also avoids the workers from working at high altitude;

[0023] 2. The utility model realizes automatic operation when the trolley is magnetically placed on the surface of the steel box beam through the cooperation of the pressure control component and the driving component arranged on the front side of the trolley. When the trolley reaches the end of the steel box beam, the trolley is automatically controlled to stop.

[0024] 3. The utility model can realize the magnetic attraction of the trolley on the surface of the steel box beam through the cooperation of the pressure control component and the coating component, and the coating component can be operated to realize coating;

[0025] 4. In the utility model, the first roller and the second roller are half-surrounded by a collecting plate, which can collect the paint output from the discharge port and facilitate cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 This is a structural schematic diagram of the bottom of the magnetic coating trolley for steel box beams of the utility model from one perspective;

[0028] Figure 2 This is a structural schematic diagram of the bottom of the magnetic coating trolley for steel box beams of the utility model from one perspective;

[0029] Figure 3 This is a schematic diagram of the structure of the pressure control assembly of the utility model;

[0030] Figure 4 It is a schematic diagram of the structure of the resistance member and the compression spring of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the side surface of the coating assembly of the utility model;

[0032] Figure 6 This is a schematic structural diagram of the coating assembly of the utility model from an axial perspective;

[0033] Figure 7 This is a schematic diagram of the structure of the aggregate plate of the utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the paint box of the utility model;

[0035] In the figure: 1-wall plate; 11-magnetic wheel; 2-driving assembly; 3-painting assembly; 31-first roller; 32-second roller; 33-paint box; 34-discharging port; 35-spring bracket; 36-baffle; 37-collecting plate;

[0036] 4-pressure control assembly; 41-resistance piece; 42-compression spring; 43-sensor bracket; 44-wire tube. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0040] Example 1

[0041] The steel box girders used in bridge construction will be painted on the circumferential surfaces in the length direction during modular prefabrication in the factory. In order to meet the welding requirements for on-site assembly of the steel box girders, a width of 100mm needs to be left unpainted on each side of the steel box girders. After the on-site welding of the steel box girders is completed, the workers will spray paint the welds between the steel box girders.

[0042] The magnetic painting trolley for steel box girders is used to replace manual painting of the welds on the surface of steel box girders. It can not only improve the efficiency of painting to a certain extent, but also avoid workers working at high altitudes and avoid the safety hazards caused by working at high altitudes.

[0043] The magnetic coating trolley for steel box beams comprises a wall panel 1 and a top panel. In this embodiment, the wall panel 1 is in a square shape and surrounds and cooperates with the top panel to form a receiving space. Figure 2 As shown, the accommodation space is used to install the internal structures of the vehicle such as the driving component 2 and the painting component 3;

[0044] The U-shaped wall panel 1 is only a preferred embodiment, and the wall panel 1 of the vehicle can be designed to be circular or in other shapes according to actual conditions.

[0045] A plurality of magnetic wheels 11 are installed on both sides of the magnetic coating trolley. Figure 1 , Figure 2As shown;

[0046] In this embodiment, six magnetic wheels 11 are installed on both sides of the trolley. Figure 2 As shown;

[0047] The magnetic wheel 11 can be connected to the surface of the steel box beam by magnetic attraction.

[0048] The magnetic wheels 11 are rotatably connected to the wall panels 1 on both sides of the magnetic coating trolley;

[0049] A drive assembly 2 is installed in the accommodation space formed by the wall panel 1. The drive assembly 2 is fixed in the accommodation space and is located at the rear side of the trolley. Figure 1 , Figure 2 As shown;

[0050] In this embodiment, the driving component 2 is a motor;

[0051] In this embodiment, the magnetic wheels 11 corresponding to the two sides of the driving assembly 2 are driving wheels, and the remaining magnetic wheels 11 are driven wheels;

[0052] The driving wheel is connected to the motor through a rotatable shaft that runs through the wall plate 1. The operation of the motor can drive the driving wheel to rotate on both sides of the trolley, so that the trolley can move forward;

[0053] The driven wheel is rotatably connected to the wall plate 1, and the driven wheel will rotate as the trolley moves forward;

[0054] The magnetic wheel 11 can be magnetically attracted to the surface of the steel box beam and rotated under the drive of the driving assembly 2, so that the trolley can run close to the surface of the steel box beam.

[0055] The magnetic painting trolley includes a painting assembly 3, which is installed in the accommodating space of the trolley. Figure 1 As shown;

[0056] The painting assembly 3 includes a paint box 33 and a roller. One side of the paint box 33 includes an injection port for injecting paint, and the injection port is provided with a cover plate.

[0057] A discharge port 34 is provided on one side of the paint box 33 near the roller. Figure 6 , Figure 8 As shown;

[0058] In this embodiment, the rollers include a first roller 31 and a second roller 32. The first roller 31 and the second roller 32 rotate in contact with each other. Figure 5 , Figure 6 As shown; that is, the surfaces of the first roller 31 and the second roller 32 are in contact during the rotation process;

[0059] The second roller 32 is located in the accommodation space, and both ends of the shaft of the second roller 32 are respectively connected to the inner side walls of the wall panels 1 on both sides, and the second roller 32 can rotate in the accommodation space through the shaft;

[0060] The second roller 32 is close to the discharge port 34 on one side of the paint box 33. Figure 6 As shown;

[0061] The paint discharged from the discharge port 34 will first adhere to the surface of the second roller 32;

[0062] The first roller 31 is connected to a spring bracket 35, and the first roller 31 is connected to the trolley through the spring bracket 35;

[0063] Furthermore, the spring bracket 35 is installed on both sides of the first roller 31, and the end of the spring bracket 35 is fixedly connected to the end of the shaft of the first roller 31;

[0064] The other end of the spring bracket 35 is fixed to the inner side wall of the top plate of the trolley;

[0065] The surface of the first roller 31 can contact the surface of the second roller 32;

[0066] In this embodiment, the surface of the first roller 31 exceeds the bottom end of the magnetic wheel 11, that is, when the trolley is placed on the surface of the steel box beam, the first roller 31 will cooperate with the surface of the steel box beam to achieve relative extrusion;

[0067] The first roller 31 presses against the surface of the steel box beam and is pressed against it, which can cause the spring bracket 35 to be compressed and deformed. The compression deformation of the spring bracket 35 can not only cause the first roller 31 to be relatively displaced, but also form a certain reverse tension, ensuring that the first roller 31 is relatively displaced and can always maintain contact with the surface of the steel box beam.

[0068] In this embodiment, a baffle 36 is provided on one side of the discharge port 34. Figure 5 , Figure 8 As shown, the baffle 36 can shield the paint output from the discharge port 34;

[0069] The baffle 36 is located on one side of the discharge port 34 close to the bottom of the trolley. When the discharge port 34 discharges paint, the baffle 36 blocks the discharged paint to prevent it from dripping onto the surface of the steel box beam below the trolley.

[0070] A material collecting plate 37 is formed on one side of the first roller 31 and the second roller 32. The material collecting plate 37 half surrounds the first roller 31 and the second roller 32. Figure 5 , Figure 7 As shown;

[0071] The collecting plate 37 can be separated between the first roller 31, the second roller 32 and the inner wall of the trolley roof, which can minimize the possibility of paint contaminating the inner wall of the trolley roof; at the same time, it can also collect the paint output from the discharge port 34, making it more convenient to clean.

[0072] An oil pump is provided in the paint box 33, and the oil pump is tightly connected with the discharge port 34, so that the oil pump can suck the paint in the paint box 33 and push it to the discharge port 34, so that the second roller 32 can obtain paint from the discharge port 34; the cooperation between the oil pump and the discharge port 34 to output paint to the paint brush is a prior art and will not be elaborated here.

[0073] The magnetic coating trolley for steel box beams includes a pressure control component 4, which is arranged at the front side of the trolley. Figure 1 As shown;

[0074] In this embodiment, the pressure control component 4 is a programmable spring pressure sensor;

[0075] The pressure control component 4 is controlled and connected with the driving component 2 and the oil pump respectively. The pressure control component 4 can monitor the position relationship between the trolley and the steel box girder and control the operation or stop of the driving component 2 and the oil pump according to the monitored position relationship between the two.

[0076] In this embodiment, the pressure control assembly 4 includes a resisting member 41, a compression spring 42 and a pressure sensor;

[0077] A sensor bracket 43 is installed on the outer side of the wall plate 1 at the front side of the trolley, and a wire tube 44 is connected to one side of the sensor bracket 43. Figure 1 , Figure 3 As shown;

[0078] The wire tube 44 passes through the wall plate 1 on this side, and the wires of the pressure control assembly 4 can be arranged in the trolley through the wire tube 44 to be connected with the drive assembly 2 and the oil pump;

[0079] In this embodiment, the pressure sensor is located in the sensor bracket 43, and the resistance member 41 is telescopically sleeved in the through hole at one end of the sensor bracket 43. A pressure spring 42 is connected between the through hole of the sensor bracket 43 and the resistance member 41. When the resistance member 41 is pressed down, the pressure spring 42 will be compressed accordingly, and the pressure sensor can monitor whether the pressure spring 42 is compressed and deformed;

[0080] The programmable spring pressure sensor can control the drive assembly 2 to be powered on and the oil pump to operate when it detects that the pressure spring 42 is compressed and deformed; when it detects that the pressure spring 42 is in a stretched state, it will control the drive assembly 2 to be powered off and the oil pump to be shut down.

[0081] In this embodiment, when the compression spring 42 of the pressure control assembly 4 is in an extended state, the end of the abutment 41 exceeds the bottom end of the magnetic wheel 11; thus, when the trolley is placed on the surface of the steel box beam, the abutment 41 will cooperate with the surface of the steel box beam and cause the compression spring 42 to be compressed and deformed;

[0082] When the magnetic coating trolley for steel box girders is actually used for coating the welds of steel box girders, its working principle is as follows:

[0083] The trolley is placed on the surface of the steel box girder, and the magnetic wheels 11 on both sides of the trolley correspond to the parts of the steel box girder surface that are magnetically attracted to the painted parts during factory prefabrication. The first roller 31 corresponds to the weld to be painted between the two steel box girders. Since the surface of the first roller 31 exceeds the bottom of the magnetic wheel 11, the first roller 31 will cooperate with the weld to cause the spring bracket 35 to be compressed and deformed. The first roller 31 always keeps in contact with the weld under the tension of the spring bracket 35; since the end of the abutment 41 exceeds the bottom of the magnetic wheel 11, the abutment 41 will cooperate with the surface of the steel box girder to cause the compression spring 42 to be compressed and deformed. The abutment 41 always keeps in contact with the surface of the steel box girder under the tension of the compression spring 42. At the same time, the pressure sensor monitors the compression deformation of the compression spring 42. The control component 4 will control the driving component 2 to be powered on and operate, and at the same time control the oil pump to operate. The driving component 2 is powered on and can drive the magnetic wheel 11 to rotate, so that the trolley can travel on the surface of the steel box girder; the operation of the oil pump can transport the paint in the paint box 33 to the second roller 32 through the discharge port 34, and the paint is attached to the surface of the first roller 31 through the contact and rotation of the second roller 32 and the first roller 31, and the first roller 31 realizes the painting of the weld with paint as the trolley travels; when the trolley travels to the boundary of the steel box girder, since the abutment 41 is located at the front side of the trolley, the limiting compression spring 42 that loses the steel box girder that abuts against it will bounce back to the extended state, at this time, the pressure control component 4 controls the driving component 2 to cut off the power, and the trolley no longer continues to move forward, and at the same time, the pressure control component 4 controls the oil pump to shut down.

[0084] It should be noted that the magnetism of the magnetic wheel 11 can ensure that the trolley can maintain magnetic attraction with the steel box girder when the trolley is traveling on the steel box girder at a certain speed;

[0085] Because the welds between the steel box girders are straight lines, the magnetic coating trolley for the steel box girders does not need to consider the steering problem;

[0086] In this embodiment, one end of the abutment 41 is arranged as a ball. When the abutment 41 abuts against the surface of the steel box girder, the ball can replace the abutment 41 in contact with the surface of the steel box girder, thereby reducing friction and avoiding excessive resistance to the travel of the trolley caused by the abutment between the abutment 41 and the surface of the steel box girder. At the same time, the ball replaces the abutment 41 in contact with the surface of the steel box girder to avoid rigid contact between the abutment 41 and the surface of the steel box girder and formation of scratches on the surface of the steel box girder.

[0087] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A magnetic coating trolley for steel box beams, comprising: A driving component (2) is used to output power to drive the trolley to run; Features: The driving assembly (2) is connected to a magnetic wheel (11), and the magnetic wheel (11) can be magnetically attracted to the surface of the steel box beam and rotate under the drive of the driving assembly (2), so that the trolley can travel on the surface of the steel box beam; and also includes a painting assembly (3), and the painting assembly (3) is used to paint the surface of the steel box beam during the travel of the trolley.

2. The magnetic coating trolley for steel box beams according to claim 1 is characterized in that: It also includes a pressure control component (4), which is controllably connected to the drive component (2). The pressure control component (4) is capable of monitoring the positional relationship between the trolley and the steel box girder, and controlling the working state of the drive component (2) according to the positional relationship between the two.

3. The magnetic coating trolley for steel box beams according to claim 2 is characterized in that: The pressure control assembly (4) comprises a resistance member (41), a compression spring (42) and a pressure sensor. The resistance member (41) is located at the front side of the trolley. The resistance member (41) is telescopically connected to the trolley via the compression spring (42). When the trolley is placed on the surface of the steel box beam, the resistance member (41) will cooperate with the surface of the steel box beam to resist and compress the compression spring (42). The pressure sensor is used to monitor the telescopic state of the compression spring (42).

4. The magnetic coating trolley for steel box beams according to claim 3 is characterized in that: One end of the resistance member (41) is arranged as a ball.

5. The magnetic coating trolley for steel box beams according to claim 1 is characterized in that: The painting assembly (3) comprises a paint box (33) and a roller. The paint box (33) is used to store paint and output the paint to the roller. The surface of the roller can cooperate with the surface of the steel box beam, so that the paint is applied to the surface of the steel box beam.

6. The magnetic coating trolley for steel box beams according to claim 5, characterized in that: The roller comprises a first roller (31) and a second roller (32); the first roller (31) is connected to a spring bracket (35); the first roller (31) is connected to the trolley via the spring bracket (35); the surface of the first roller (31) exceeds the contact surface between the magnetic wheel (11) and the steel box beam; when the trolley is placed on the surface of the steel box beam, the first roller (31) and the surface of the steel box beam are matched and abutted against each other, and the spring bracket (35) is compressed; the first roller (31) and the second roller (32) are in contact and rotate.

7. The magnetic coating trolley for steel box beams according to claim 6 is characterized in that: The paint box (33) comprises a discharge port (34), the discharge port (34) is connected to an oil pump, the discharge port (34) corresponds to the second roller (32), and the paint box (33) can output paint to the second roller (32) through the cooperation between the oil pump and the discharge port (34).

8. The magnetic coating trolley for steel box beams according to claim 7, characterized in that: A baffle (36) is provided on one side of the discharge port (34).

9. A magnetic coating trolley for steel box beams according to any one of claims 6 to 8, characterized in that: A material collecting plate (37) is formed on one side of the first roller (31) and the second roller (32), and the material collecting plate (37) semi-surrounds the first roller (31) and the second roller (32).

10. The magnetic coating trolley for steel box beams according to claim 7, characterized in that: It also comprises a pressure control component (4), and the oil pump is controllably connected to the pressure control component (4).

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