Coating device for steel structure bridge

Abstract

The utility model relates to the technical field of steel structure bridge coating, and discloses a steel structure bridge coating device which comprises a transport vehicle, a supporting arm is arranged at the top of the transport vehicle, a lifting mechanism is arranged at one end of the supporting arm, a fixing cylinder is arranged on one side of the lifting mechanism, a hydraulic rod is rotationally connected to the inner top of a door-shaped frame, and a hydraulic cylinder is arranged on the inner top of the door-shaped frame. A rotating ring is rotationally connected to the output end of the hydraulic rod, an adjusting cylinder is rotationally connected to one side of the swing frame, one side of the gear is connected to the outer side of a gear ring in a meshed mode, and a paint spraying mechanism is installed on the other side of the swing frame. According to the device, the paint spraying mechanism can spray the side face of the steel structure bridge and can also spray the bottom face of the steel structure bridge, the coating operation of the side face and the bottom face is efficiently completed, the swing frame at the bottom of the adjusting cylinder and the paint spraying mechanism can be driven to rotate, and the spraying adjusting effect in different positions in multiple directions can be conveniently achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure bridge painting, in particular to a steel structure bridge painting device. Background Art

[0002] The coating design of hyperstatic steel structure bridges is a complex and critical process. In this process, it mainly includes three links: rust removal, sandblasting and painting on the surface of the steel structure. The purpose of these processes is to ensure the service life of the steel structure bridge, improve its corrosion resistance, and enhance the overall aesthetics. In the existing spray painting process, there are many equipment that can assist in the rapid completion of the spraying work, which undoubtedly brings convenience to the construction. However, there is a common problem with the existing technology: in general, the spraying work relies on manual handheld spray guns, or the use of drive equipment to drive the spraying mechanism. Although these methods have improved the spraying efficiency to a certain extent, most equipment cannot achieve multi-angle adjustment, which greatly limits the quality and effect of the spraying.

[0003] After searching, the announcement number: CN217830492U discloses a bridge steel structure painting auxiliary device, including a bridge, a driving frame is provided on both sides of the bridge, and a first motor is fixedly installed at one end of the bottom side of the driving frame on both sides, the driving output end of the first motor is connected to the transmission shaft, and the other end of the transmission shaft is fixedly connected to a driving gear; the two groups of driving frames are fixedly connected to the inside of the limited seats, and the two groups of limited seats are movably connected to the moving seats. After the technical solution of this application is installed on the bottom side of the bridge through the equipment, the second motor can be driven to drive the nozzle to move and spray on the bottom side of the bridge, avoiding manual climbing of the bridge and greatly reducing the danger. At the same time, the first motor can be driven to drive the gear to rotate, and the meshing gear will be moved by the rotating gear, so that the spraying position of the nozzle can be changed, and the original spraying position can be dislocated, ensuring that the bridge is more comprehensive during the spraying process.

[0004] Although the above application can realize mobile spraying on the bottom side of the steel structure bridge, other equipment needs to be replaced when spraying on the side of the bridge steel structure, and the side and bottom painting operations cannot be completed efficiently. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a coating device for a steel structure bridge, aiming to improve the problem that the existing spraying equipment needs to be replaced when performing side and bottom surface coating operations.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a painting device for a steel structure bridge comprises a transport vehicle, a support arm is arranged on the top of the transport vehicle, a lifting mechanism is arranged at one end of the support arm, a fixed cylinder is arranged on one side of the lifting mechanism, the lifting mechanism is used to drive the fixed cylinder to lift and lower, the top of the fixed cylinder is fixedly connected with a portal frame, the inner top of the portal frame is rotatably connected with a hydraulic rod, the output end of the hydraulic rod is rotatably connected with a swivel, the bottom of the swivel is rotatably connected with a swing rod, one end of the swing rod is fixedly connected with a swing frame, one side of the swing frame is rotatably connected with an adjusting cylinder, the outer side of the adjusting cylinder is fixedly connected with a gear ring, the top of the adjusting cylinder is connected to the bottom of the fixed cylinder through a slewing bearing, the outer wall of the fixed cylinder is installed with a second motor, the output end of the second motor is fixedly connected with a gear, one side of the gear is meshed and connected to the outer side of the gear ring, and a painting mechanism is installed on the other side of the swing frame.

[0007] Preferably, the lifting mechanism includes a driven rod, the outer wall of the driven rod is connected to a driving assembly to enable the driven rod to rotate, one end of the driven rod is fixedly connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a threaded moving block, one side of the threaded moving block is fixedly connected to the outer wall of a fixed cylinder, and one side of the outer wall of the threaded moving block adjacent to the fixed cylinder is connected to a vertical plate.

[0008] Preferably, a U-shaped frame is fixedly connected to one side of the outer wall of the threaded moving block adjacent to the fixed cylinder, and rollers are installed in the middle and both sides of the U-shaped frame. The three rollers are respectively connected to the three sides of the vertical plate, the top end of the vertical plate is fixedly connected to one end of the support arm, and the bottom end of the vertical plate is fixedly connected to a limiting plate.

[0009] Preferably, the paint spraying mechanism comprises a paint spraying tube and a plurality of spray heads, the plurality of spray heads are evenly distributed on the side wall of the paint spraying tube, and one end of the paint spraying tube is connected to the other side of the swing frame through an electric telescopic rod.

[0010] Preferably, the outer wall of the fixing cylinder is fixedly connected to a frame, and one side of the frame is fixedly connected to the outer wall of the second motor.

[0011] Preferably, the axis of the swivel is in the same straight line as the axis of the hydraulic rod, the swivel can rotate around the axis of the hydraulic rod, and the top end of the swing rod is connected to the bottom end of the swivel via a hinge shaft.

[0012] Preferably, the driving assembly includes a first motor, an outer wall of the first motor is fixedly connected to one side of the support arm, the outer wall of the driven rod and the output end of the first motor are both fixedly connected with pulleys, and the two pulleys are connected by a belt.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the support arm can support the lifting mechanism, the angle adjustment mechanism and the swing mechanism. The angle adjustment mechanism is used to adjust the paint spraying angle of the paint spraying mechanism. The swing mechanism is used to turn the paint spraying mechanism ninety degrees, so that the paint spraying mechanism can spray the side of the steel structure bridge, and can also spray the bottom of the steel structure bridge, so as to efficiently complete the side and bottom painting operations.

[0015] 2. In the utility model, the first motor can drive the pulley to rotate, so that the threaded moving block can be raised and lowered, and then the fixed cylinder can be raised and lowered. The second motor can drive the gear to rotate, and then drive the gear ring to rotate, so that the adjusting cylinder can rotate, which can drive the swing frame and the paint spraying mechanism at the bottom of the adjusting cylinder to rotate, so as to facilitate the spraying adjustment effect in multiple directions and different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a coating device for a steel structure bridge proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of an angle adjustment mechanism of a coating device for a steel structure bridge proposed by the utility model;

[0018] Figure 3 A schematic diagram of a swing mechanism of a coating device for a steel structure bridge proposed by the utility model;

[0019] Figure 4 The utility model is a schematic diagram of a threaded moving block of a coating device for a steel structure bridge.

[0020] Legend:

[0021] 1. Transport vehicle; 2. Support arm; 3. First motor; 31. Belt; 32. Follower rod; 301. Threaded rod; 302. Threaded moving block; 303. U-shaped frame; 304. Roller; 305. Vertical plate; 4. Angle adjustment mechanism; 401. Frame; 402. Second motor; 403. Gear; 404. Gear ring; 5. Swing mechanism; 501. Door frame; 502. Fixed cylinder; 503. Hydraulic rod; 504. Slewing bearing; 505. Adjustment cylinder; 506. Swing frame; 507. Swing rod; 508. Swivel; 6. Paint spraying mechanism. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-Figure 4 The utility model provides an embodiment: a painting device for a steel structure bridge, comprising a transport vehicle 1, a support arm 2 is arranged on the top of the transport vehicle 1, a lifting mechanism is arranged at one end of the support arm 2, a fixed cylinder 502 is arranged on one side of the lifting mechanism, and the lifting mechanism is used to drive the fixed cylinder 502 to lift and lower; the transport vehicle 1 is used to transport the device of the utility model to the top of the steel structure bridge, and the support arm 2 can support the lifting mechanism and the angle adjustment mechanism 4 and the swing mechanism 5, the angle adjustment mechanism 4 is used to adjust the painting angle of the paint spraying mechanism 6, and the swing mechanism 5 is used to make the paint spraying mechanism 6 turn ninety degrees, so that the paint spraying mechanism 6 can spray the side of the steel structure bridge, and can also spray the bottom surface of the steel structure bridge, and efficiently complete the side and bottom surface painting operations.

[0024] refer to Figure 1 and Figure 4 The lifting mechanism includes a driven rod 32, the outer wall of the driven rod 32 is connected to a driving assembly to enable the driven rod 32 to rotate, the driving assembly includes a first motor 3, the outer wall of the first motor 3 is fixedly connected to one side of the support arm 2, the outer wall of the driven rod 32 and the output end of the first motor 3 are both fixedly connected to a pulley, and the two pulleys are connected by a belt 31; the first motor 3 can be used to drive the pulley to rotate, thereby rotating the driven rod 32.

[0025] One end of the driven rod 32 is fixedly connected to a threaded rod 301, the outer side of the threaded rod 301 is threadedly connected to a threaded moving block 302, one side of the threaded moving block 302 is fixedly connected to the outer wall of the fixed cylinder 502, and a vertical plate 305 is connected to one side of the outer wall of the threaded moving block 302 adjacent to the fixed cylinder 502; the rotation of the driven rod 32 can drive the threaded rod 301, and the vertical plate 305 is used to limit the threaded moving block 302, so that the threaded moving block 302 can be raised and lowered, and the fixed cylinder 502 can be raised and lowered.

[0026] A U-shaped frame 303 is fixedly connected to one side of the outer wall of the threaded moving block 302 adjacent to the fixed cylinder 502, and rollers 304 are installed in the middle and both sides of the U-shaped frame 303. The three rollers 304 are respectively connected to the three sides of the vertical plate 305, the top of the vertical plate 305 is fixedly connected to one end of the support arm 2, and the bottom end of the vertical plate 305 is fixedly connected to the limiting plate; the vertical plate 305 supports the three rollers 304 from three directions respectively.

[0027] refer to Figure 3 The swing mechanism 5 includes a portal frame 501 and a hydraulic rod 503. The top of the fixed cylinder 502 is fixedly connected to the portal frame 501, the inner top of the portal frame 501 is rotatably connected to the hydraulic rod 503, the output end of the hydraulic rod 503 is rotatably connected to a swivel 508, the bottom of the swivel 508 is rotatably connected to a swing rod 507, the axis of the swivel 508 is in the same straight line as the axis of the hydraulic rod 503, the swivel 508 can rotate around the axis of the hydraulic rod 503, the top of the swing rod 507 is connected to the bottom of the swivel 508 through a hinge shaft, one end of the swing rod 507 is fixedly connected to a swing frame 506, one side of the swing frame 506 is rotatably connected to the adjusting cylinder 505, and the other side of the swing frame 506 is installed with a paint spraying mechanism 6. A portal frame 501 and a hydraulic rod 503 are installed on the fixed cylinder 502. The hydraulic rod 503 can push the swivel 508 and the swing rod 507. The swing rod 507 can rotate around the swivel 508, which is convenient for pushing the swing frame 506 to rotate around the adjustment cylinder 505, so that the paint spraying mechanism 6 can swing around the adjustment cylinder 505 at a certain angle within a range of ninety degrees, which is convenient for spraying the side and bottom surfaces of the steel structure bridge.

[0028] The angle adjustment mechanism 4 includes a second motor 402, a gear 403 and a gear ring 404. The outer side of the adjusting cylinder 505 is fixedly connected with the gear ring 404. The top of the adjusting cylinder 505 is connected to the bottom of the fixed cylinder 502 through a slewing bearing 504. The outer wall of the fixed cylinder 502 is installed with the second motor 402. The output end of the second motor 402 is fixedly connected with the gear 403. One side of the gear 403 is meshed and connected to the outer side of the gear ring 404. The second motor 402 can drive the gear 403 to rotate, and then drive the gear ring 404 to rotate, so that the adjusting cylinder 505 rotates, which can drive the swing frame 506 and the paint spraying mechanism 6 at the bottom of the adjusting cylinder 505 to rotate. The design of the swivel 508 and the slewing bearing 504 can not only enable the hydraulic rod 503 to complete the push of the swing rod 507, but also facilitate the second motor 402 to drive the adjusting cylinder 505 to rotate.

[0029] Among them, the paint spraying mechanism 6 includes a paint spraying pipe and multiple nozzles, and the multiple nozzles are evenly distributed on the side wall of the paint spraying pipe. One end of the paint spraying pipe is connected to the other side of the swing frame 506 through an electric telescopic rod, and the other end of the paint spraying pipe is connected to the paint pump through a hose and then connected to the paint bucket, so that paint can be supplied to the nozzle. The paint supply to the nozzle in the paint spraying mechanism 6 is an existing conventional technology, so it will not be elaborated on.

[0030] The outer wall of the fixing cylinder 502 is fixedly connected to the frame 401 , and one side of the frame 401 is fixedly connected to the outer wall of the second motor 402 , so as to facilitate fixing the second motor 402 on the fixing cylinder 502 .

[0031] Working principle: When in use, the transport vehicle 1 moves on the top of the steel structure bridge, and the first motor 3 can be used to drive the pulley to rotate, thereby rotating the driven rod 32, and the rotation of the driven rod 32 can drive the threaded rod 301, and the vertical plate 305 is used to limit the threaded moving block 302, so that the threaded moving block 302 can be lifted and lowered, and the fixed cylinder 502 can be lifted and lowered, and spraying at different positions can be completed. The hydraulic rod 503 can push the swivel 508 and the swing rod 507, and the swing rod 507 can rotate around the swivel 508, which is convenient for pushing the swing frame 506 to rotate around the adjusting cylinder 505, and then the paint spraying mechanism 6 can swing around the adjusting cylinder 505 at a certain angle, and the angle range is ninety degrees, which is convenient for spraying the side and bottom of the steel structure bridge. The second motor 402 can drive the gear 403 to rotate, and then drive the gear ring 404 to rotate, so that the adjusting cylinder 505 rotates, which can drive the swing frame 506 and the paint spraying mechanism 6 at the bottom of the adjusting cylinder 505 to rotate, so as to realize multi-directional spraying.

[0032] The first motor, the second motor and the hydraulic rod are well-known equipment purchased directly from the market by technicians in this field. Here we only use them and do not make any structural and functional improvements. We will not go into details here. The motor and the hydraulic rod are provided with a matching control switch. The installation position of the control switch is selected according to actual usage requirements to facilitate the operator to perform operation and control.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coating device for a steel structure bridge, comprising a transport vehicle (1), characterized in that: The top of the transport vehicle (1) is provided with a support arm (2), one end of the support arm (2) is provided with a lifting mechanism, one side of the lifting mechanism is provided with a fixed cylinder (502), the top of the fixed cylinder (502) is fixedly connected to a portal frame (501), the inner top of the portal frame (501) is rotatably connected to a hydraulic rod (503), the output end of the hydraulic rod (503) is rotatably connected to a swivel (508), the bottom of the swivel (508) is rotatably connected to a swing rod (507), one end of the swing rod (507) is fixedly connected to a swing frame (506), and the One side of the swing frame (506) is rotatably connected to an adjusting cylinder (505), the outer side of the adjusting cylinder (505) is fixedly connected to a gear ring (404), the top of the adjusting cylinder (505) is connected to the bottom of the fixed cylinder (502) through a slewing bearing (504), the outer wall of the fixed cylinder (502) is installed with a second motor (402), the output end of the second motor (402) is fixedly connected to a gear (403), one side of the gear (403) is meshedly connected to the outer side of the gear ring (404), and the other side of the swing frame (506) is installed with a paint spraying mechanism (6).

2. A coating device for a steel structure bridge according to claim 1, characterized in that: The lifting mechanism comprises a driven rod (32), the outer wall of the driven rod (32) is connected to a driving assembly so that the driven rod (32) can rotate, one end of the driven rod (32) is fixedly connected to a threaded rod (301), the outer side of the threaded rod (301) is threadedly connected to a threaded moving block (302), one side of the threaded moving block (302) is fixedly connected to the outer wall of a fixed cylinder (502), and one side of the outer wall of the threaded moving block (302) adjacent to the fixed cylinder (502) is connected to a vertical plate (305).

3. A coating device for a steel structure bridge according to claim 2, characterized in that: A U-shaped frame (303) is fixedly connected to one side of the outer wall of the threaded moving block (302) adjacent to the fixed cylinder (502), and rollers (304) are installed in the middle and on both sides of the U-shaped frame (303). The three rollers (304) are respectively connected to three sides of the vertical plate (305), the top end of the vertical plate (305) is fixedly connected to one end of the support arm (2), and the bottom end of the vertical plate (305) is fixedly connected to a limiting plate.

4. The coating device for a steel structure bridge according to claim 1, characterized in that: The paint spraying mechanism (6) comprises a paint spraying pipe and a plurality of spray heads, wherein the plurality of spray heads are evenly distributed on the side wall of the paint spraying pipe, and one end of the paint spraying pipe is connected to the other side of the swing frame (506) via an electric telescopic rod.

5. The coating device for a steel structure bridge according to claim 3, characterized in that: The outer wall of the fixed cylinder (502) is fixedly connected to the frame (401), and one side of the frame (401) is fixedly connected to the outer wall of the second motor (402).

6. The coating device for a steel structure bridge according to claim 1, characterized in that: The axis of the swivel (508) is in the same straight line as the axis of the hydraulic rod (503), and the swivel (508) can rotate around the axis of the hydraulic rod (503). The top end of the swing rod (507) is connected to the bottom end of the swivel (508) via a hinge shaft.

7. The coating device for a steel structure bridge according to claim 2, characterized in that: The driving assembly comprises a first motor (3), the outer wall of the first motor (3) is fixedly connected to one side of the support arm (2), the outer wall of the driven rod (32) and the output end of the first motor (3) are both fixedly connected to pulleys, and the two pulleys are connected via a belt (31).

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