A surface coating spraying apparatus for a ship hull steel structure

Abstract

The application relates to the technical field of ship surface spraying equipment, in particular to a ship steel structure surface coating spraying equipment which comprises two sliding rails, support plates are slidably arranged on the sliding rails, a frame-shaped gantry is arranged between the two support plates, sliding vertical plates are slidably arranged on the two support plates, avoiding grooves corresponding to vertical sections of the frame-shaped gantry are formed in the sliding vertical plates, and positioning sprayers are arranged on the sliding vertical plates. The positioning rod moves together with a connecting rod connected with one end of the positioning rod and slidingly arranged in the positioning sliding groove, and the connecting rod is compressed on the side away from the sliding vertical plate and the positioning spring arranged between the connecting rod and the supporting sleeve. Under the influence of the curvature of the ship outer surface, the positioning rollers with different heights contact the ship outer surface at different times, the distance of the positioning rod shrinking into the supporting sleeve is different, and thus the curvature of the ship outer surface with different sizes and shapes can be adapted.

Description

Technical Field

[0001] This application relates to the technical field of ship hull surface spraying equipment, and in particular to a ship hull steel structure surface coating spraying equipment. Background Technology

[0002] Hull steel structure surface coatings are one or more protective materials applied to the surface of a ship's metal structure. Their primary purpose is to protect the hull from damage caused by seawater, marine organisms, corrosion, and other environmental factors. These coatings not only provide physical protection and extend the ship's service life, but also improve the ship's streamlined shape, reduce underwater friction, and thus increase navigation efficiency.

[0003] There are many types of coatings, including but not limited to rust-preventive paint, antifouling paint, and abrasion-resistant coatings. The appropriate coating material is selected based on the ship's operating environment and the expected protective effect. For example, rust-preventive paint is used to prevent metal corrosion, while antifouling paint is used to prevent marine organisms from adhering to the hull. Spraying equipment can include high-pressure airless sprayers, air sprayers, or electrostatic sprayers. During the spraying process, operators need to evenly apply the paint to the hull surface to ensure the uniformity and thickness of the coating.

[0004] For example, the automatic hull surface spraying equipment disclosed in CN104511387B relates to the field of new energy vehicle technology. This prior art includes a gantry crane with a column on the hull surface, which is mounted on a slide rail on a dry dock. The column can slide along the slide rail axis. The automatic spraying equipment includes: a slide rod installed on the column, which can slide along the column axis, and the slide rod axis, the slide rail axis, and the column axis are orthogonal to each other; an orthogonal slider group installed on the slide rod, which can slide along the slide rod axis; and at least one automatic spraying device fixedly installed at the end of the orthogonal slider group.

[0005] However, the aforementioned existing technologies still have some shortcomings when it comes to spraying paint on ship hull surfaces:

[0006] 1. The aforementioned prior art uses a gantry crane installed on a dock, with the axes of the slide rails, columns, and slide rods defined as X1, Z1, and Y1 directions, respectively. These axes are orthogonal to each other, allowing the automatic spraying equipment to move in three degrees of freedom (X1, Y1, Z1 directions). By measuring the distance between the automatic spraying device and the hull surface, the distance between the nozzle and the outer surface of the hull is kept constant. However, due to the large size and curvature of the outer surface of the hull, the descent height of the gantry crane is limited by the height of the hull. This means that the gantry crane cannot descend indefinitely to cover the entire height range of the hull, especially in the lower part of the hull, where the gantry crane may not be able to reach.

[0007] 2. The existing technology described above, due to the curvature of the hull's outer surface (typically, the upper side of the hull is larger and extends downwards to form curvature), is affected by the curvature of both the gantry crane and the hull in the Z1 direction (X, Y, Z). The movement of the gantry crane may be disturbed by the hull's curvature, making it difficult for the automatic spraying equipment to maintain a constant distance from the hull surface. This can lead to uneven spraying or require additional adjustments to compensate for the curvature's effects, directly impacting the spraying quality. Uneven distances can result in inconsistent coating thickness, affecting both the protective effect and aesthetics of the coating.

[0008] 3. The above-mentioned prior art uses the second slider to slide along the axis X2 of the first slider, which drives the automatic spraying device to move within a small area in the X2 direction. Each time the gantry crane moves along the X1 direction, it completes the movement between the large spraying areas. Moving in the X2 direction, it completes the movement of the working range within the small spraying area. However, the spraying area of ​​a ship's surface is generally large, and spraying in a small area each time will affect the spraying efficiency.

[0009] Based on this, and given the above viewpoints, there is still room for improvement in the existing technology for spraying coatings on ship hulls. Summary of the Invention

[0010] To solve the above-mentioned technical problems, this application provides a coating spraying device for the surface of ship hull steel structures, which adopts the following technical solution:

[0011] A surface coating spraying device for ship hull steel structure includes two slide rails, on which support plates are slidably arranged, and between the two support plates is a U-shaped gantry frame. Each of the two support plates is slidably arranged with a sliding vertical plate. The sliding vertical plate has a clearance groove corresponding to the vertical section of the U-shaped gantry frame. A positioning sprayer is provided on the sliding vertical plate.

[0012] The positioning sprayer includes several support sleeves evenly arranged on the opposite sides of two sliding vertical plates. A positioning rod that slides through the sliding vertical plate is slidably arranged inside the support sleeve. A positioning groove is opened on the support sleeve, and a connecting rod connected to one end of the positioning rod is slidably arranged inside the positioning groove.

[0013] Preferably, the positioning sprayer further includes a positioning spring disposed between the side of the connecting rod away from the sliding vertical plate and the support sleeve, and a positioning support is disposed at the end of the positioning rod away from the support sleeve, and a positioning roller is rotatably disposed on the positioning support.

[0014] Preferably, the sliding vertical plate is provided with a spraying component connected to the connecting rod;

[0015] The spraying component includes a paint spray pipe that slides through a sliding vertical plate, a connecting ring connected to the paint spray pipe at one end of the connecting rod, and a nozzle at one end of the paint spray pipe.

[0016] Preferably, the sliding vertical plate is provided with a cleaner connected to the connecting rod;

[0017] The cleaner includes a cleaning support rod that passes through a support plate, and the cleaning support rod is provided with a connecting ring 2 that is connected to a connecting rod;

[0018] A cleaning disc is rotatably mounted on one end of the cleaning support rod, and a removable cleaning cotton is mounted on the cleaning disc.

[0019] Preferably, the cleaning disc is provided with a plurality of circumferentially distributed sliding rods that rotate and slide through it, one end of each sliding rod is provided with a rotating disk, a return spring is provided between the rotating disk and the cleaning disc, and a detachable cleaning wipe is provided on the rotating disk.

[0020] Preferably, the cleaning support rod is provided with a drive gear, and the cleaning disc is rotatably provided with a transmission gear that is slidably connected to the sliding rod, and the transmission gear meshes with the drive gear.

[0021] Preferably, the positioning rod is equipped with a dust removal component;

[0022] The dust removal component includes a suction pipe that passes through the support sleeve, and a suction head located inside the positioning support is provided at one end of the suction pipe after passing through the positioning rod.

[0023] Preferably, the first connecting ring is slidably connected to the paint spray pipe, the paint spray pipe is provided with a threaded section, and the first connecting ring is rotatably provided with an adjustment knob that is threadedly connected to the threaded section.

[0024] Preferably, the second connecting ring is slidably connected to the cleaning support rod, the cleaning support rod is provided with a spiral section, and the second connecting ring is rotatably provided with an adjusting ring that is threadedly connected to the spiral section.

[0025] Preferably, the paint spray pipe is provided with an L-shaped baffle located on one side of the spray head.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The positioning rod of the present invention will drive the connecting rod connected to one end of the positioning rod to move together in the positioning groove, and compress the positioning spring between the side of the connecting rod away from the sliding vertical plate and the support sleeve. Under the influence of the curvature of the outer surface of the hull, the positioning rollers of different heights will contact the outer surface of the hull at different times, so that the positioning rod retracts into the support sleeve at different distances, thereby adapting to the curvature of the outer surface of the hull of different sizes and shapes.

[0028] Meanwhile, as the support plate moves from one side of the hull to the other on the slide rail, the positioning roller will abut against the outer surface of the hull and rotate as the support plate moves. Under the action of the positioning spring force, the positioning roller will drive the positioning rod to adjust its position according to the curvature of the outer surface of the hull.

[0029] 2. The connecting rod of the present invention will drive the paint spray pipe to move together through the connecting ring, so that the nozzle at one end of the paint spray pipe is close to the outer surface of the ship. Paint is delivered into the paint spray pipe and sprayed through the nozzle. Driven by the connecting rod, the paint spray pipe will change with the position rod, so that the nozzle can adapt to the curvature of the outer surface of the ship of different sizes and shapes during the spraying process, ensuring that the spraying distance is always consistent.

[0030] 3. When the support plate of the present invention moves from one side of the hull to the other on the slide rail, the connecting rod will drive the lower cleaning support rod to change with the position rod, so that the cleaning cotton and cleaning wipe can adapt to the curvature of the outer surface of the hull of different sizes and shapes during the cleaning process, ensuring that the distance between the cleaning cotton and cleaning wipe and the outer surface of the hull is always consistent, thereby improving the cleaning effect.

[0031] At the same time, the suction tube draws air from the nozzle and sucks up the dust generated by the cleaning cotton and cleaning wipe. The suction tube also moves the nozzle positioning rod, adjusting its position according to the curvature of the ship's outer surface, ensuring that the dust generated during the cleaning process does not affect the subsequent painting effect. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention.

[0033] Figure 2 This is a partial structural schematic diagram of the present invention.

[0034] Figure 3 This is a schematic diagram of the structure between the positioning sprayer, the sprayed part, and the cleaner of the present invention.

[0035] Figure 4 This is a schematic diagram of the positioning sprayer of the present invention.

[0036] Figure 5 This is a cross-sectional view of the positioning sprayer of the present invention.

[0037] Figure 6 This is a schematic diagram of the structure of the sprayed part of the present invention.

[0038] Figure 7 This is a schematic diagram of the cleaner of the present invention.

[0039] Figure 8 This is a cross-sectional view of the cleaner of the present invention.

[0040] Figure 9 This is a schematic diagram of the structure between the rotating disk and the cleaning wipe of the present invention.

[0041] Explanation of reference numerals in the attached drawings: 1. Slide rail; 2. Support plate; 3. U-shaped gantry frame; 4. Sliding vertical plate; 41. Clearance groove; 5. Positioning sprayer; 51. Support sleeve; 52. Positioning rod; 53. Positioning slide; 54. Connecting rod; 55. Positioning spring; 56. Positioning support; 57. Positioning roller; 6. Spraying component; 61. Paint spray pipe; 62. Connecting ring one; 63. Spray head; 64. L-shaped baffle; 7. Cleaner; 71. Cleaning support rod; 72. Connecting ring two; 73. Cleaning disc; 74. Cleaning cotton; 75. Sliding rod; 76. Rotating disc; 77. Return spring; 78. Cleaning wipe; 79. Drive gear; 791. Transmission gear; 8. Dust removal component; 81. Suction pipe; 82. Suction head; 9. Threaded section; 91. Adjusting knob; 92. Spiral section; 93. Adjusting ring; 94. Drive screw. Detailed Implementation

[0042] The following is in conjunction with the appendix Figures 1 to 9 This application will be described in further detail.

[0043] This application discloses a coating spraying device for the surface of a ship hull steel structure, which can adapt to the curvature of the outer surface of a ship of different sizes and shapes, and adjust its position as the curvature of the outer surface of the ship changes, so as to ensure that the spraying distance is always consistent, thereby improving the quality and uniformity of the coating.

[0044] Example 1

[0045] Reference Figure 1 , Figure 2 and Figure 3 As shown, a surface coating spraying device for ship hull steel structure includes two slide rails 1, a support plate 2 slidably mounted on the slide rails 1, a U-shaped gantry frame 3 is jointly mounted between the two support plates 2, and a sliding vertical plate 4 is slidably mounted on each of the two support plates 2.

[0046] When spraying the coating on the surface of the ship's steel structure, the drive screw 94, which is rotatably mounted on the U-shaped gantry 3, is first rotated. The drive screw 94 is threadedly connected to the sliding vertical plate 4, which drives the sliding vertical plate 4 to move on the support plate 2, so that the two sliding vertical plates 4 on both sides move to the opposite side. The sliding vertical plate 4 is provided with a clearance groove 41, and the vertical section of the U-shaped gantry 3 is embedded into the corresponding clearance groove 41.

[0047] During this process, the sliding vertical plate 4 will drive the U-shaped gantry 3 and the positioning sprayer 5 set on the sliding vertical plate 4 to move. The sliding vertical plate 4 will drive the positioning sprayer 5 to approach the outer surface of the ship. The positioning sprayer 5 can adapt to the curvature of the outer surface of the ship of different sizes and shapes.

[0048] Then, by driving the support plate 2 to move from one side of the hull to the other on the slide rail 1, the positioning sprayer 5 will evenly spray the paint onto the surface of the hull steel structure. During the movement, the positioning sprayer 5 will adjust its position according to the curvature of the outer surface of the hull to ensure that the spraying distance is always consistent, thus ensuring the stability and accuracy of the positioning sprayer 5 during operation, thereby improving the quality and uniformity of the coating.

[0049] After the hull exterior is painted, the drive screw 94 is reversed. The rotating drive screw 94 drives the sliding vertical plate 4 to move on the support plate 2, causing the sliding vertical plates 4 on both sides to move to opposite sides. The sliding vertical plate 4 will drive the positioning sprayer 5 away from the hull exterior. Then the support plate 2 is driven to move on the slide rail 1. The support plate 2 will drive the U-shaped gantry 3 and the positioning sprayer 5 back to their initial state.

[0050] Reference Figure 3 , Figure 4 and Figure 5 As shown, specifically, the positioning sprayer 5 includes several support sleeves 51 evenly arranged on the opposite sides of two sliding vertical plates 4. A positioning rod 52 that slides through the sliding vertical plate 4 is slidably arranged inside the support sleeve 51. A positioning groove 53 is opened on the support sleeve 51.

[0051] When the sliding vertical plates 4 on both sides move to opposite sides, so that the clearance groove 41 is embedded into the vertical section of the corresponding U-shaped gantry 3, the moving sliding vertical plates 4 will drive the support sleeve 51 to move. The positioning rod 52 is provided with a positioning support 56 at the end away from the support sleeve 51. When the sliding vertical plates 4 move, they will drive the positioning support 56 to move closer to the outer surface of the hull. The positioning roller 57 rotatably provided on the positioning support 56 will contact the outer surface of the hull, causing the positioning rod 52 to move and retract into the support sleeve 51.

[0052] When the positioning rod 52 retracts into the support sleeve 51, it will drive the connecting rod 54, which is slidably set in the positioning groove 53 and connected to one end of the positioning rod 52, to move together. It will also compress the positioning spring 55 set between the side of the connecting rod 54 away from the sliding vertical plate 4 and the support sleeve 51. Under the influence of the curvature of the outer surface of the hull, the positioning rollers 57 of different heights will contact the outer surface of the hull at different times, so that the positioning rod 52 retracts into the support sleeve 51 at different distances, thereby adapting to the curvature of the outer surface of the hull of different sizes and shapes.

[0053] When the support plate 2 moves from one side of the hull to the other on the slide rail 1, the positioning roller 57 will abut against the outer surface of the hull and rotate as the support plate 2 moves. Under the action of the positioning spring 55, the positioning roller 57 will drive the positioning rod 52 to adjust its position according to the curvature of the outer surface of the hull.

[0054] Reference Figure 6 As shown, at the same time, a spraying component 6 connected to the connecting rod 54 is provided on the sliding vertical plate 4. The spraying component 6 will be driven by the connecting rod 54 to move together with the positioning rod 52, thereby adapting to the curvature of the outer surface of the ship body of different sizes and shapes, and ensuring that the spraying distance is always consistent.

[0055] The spraying component 6 includes a paint spray pipe 61 that slides through the sliding vertical plate 4, and a connecting ring 62 that connects to the paint spray pipe 61 is provided at one end of the connecting rod 54.

[0056] The movable connecting rod 54 will drive the paint spray pipe 61 to move together through the connecting ring 62, so that the nozzle 63 at one end of the paint spray pipe 61 is close to the outer surface of the ship. Paint is delivered into the paint spray pipe 61 and sprayed through the nozzle 63.

[0057] Driven by the connecting rod 54, the paint spray pipe 61 will change with the position rod 52, so that the nozzle 63 can adapt to the curvature of the outer surface of the ship of different sizes and shapes during the moving spraying process, ensuring that the spraying distance is always consistent.

[0058] Example 2

[0059] Reference Figure 7 , Figure 8 and Figure 9 Based on Embodiment 1, a cleaner 7 connected to a connecting rod 54 is provided on the sliding vertical plate 4. During the spraying operation, the cleaner 7 will remove dust, dirt or other impurities that may affect the adhesion of the coating from the surface of the hull before the spraying operation. The cleaner 7 can move with the positioning sprayer 5 through the connection with the connecting rod 54, ensuring that the cleaner 7 is carried out synchronously with the spraying operation, thereby completing cleaning and spraying in the same operation, improving the overall operation efficiency, and reducing the number of times and time required for separate cleaning.

[0060] Specifically, the cleaner 7 includes a cleaning support rod 71 passing through the support plate 2. A connecting ring 72 connected to the connecting rod 54 is slidably disposed on the cleaning support rod 71. A cleaning disc 73 is rotatably disposed at one end of the cleaning support rod 71 via a motor. Several circumferentially distributed sliding rods 75 are rotatably and slidably disposed on the cleaning disc 73. A rotating disk 76 is disposed at one end of each sliding rod 75.

[0061] The moving connecting rod 54 will drive the cleaning support rod 71 to move together through the connecting ring 72, so that the cleaning cotton 74 on the cleaning disc 73 will contact the outer surface of the ship. At the same time, the cleaning wipe 78 on the rotating disc 76 will abut against the outer surface of the ship, causing the sliding rod 75 to retract into the cleaning disc 73 and compress the return spring 77 between the rotating disc 76 and the cleaning disc 73.

[0062] Then, the motor installed on the cleaning support rod 71 drives the cleaning disc 73 to rotate, so that the cleaning cotton 74 cleans the outer surface of the hull. At the same time, the cleaning disc 73 drives the rotating disc 76 to rotate around the center of the cleaning disc 73 through the sliding rod 75, so that the cleaning wiping cloth 78 and the cleaning cotton 74 clean the outer surface of the hull together. Meanwhile, the transmission gear 791, which is rotatably connected to the sliding rod 75, is mounted on the cleaning disc 73. The transmission gear 791 rotates by meshing with the drive gear 79 on the cleaning support rod 71. The rotating transmission gear 791 drives the sliding rod 75 to drive the rotating disc 76 to rotate, so that the cleaning wiping cloth 78 further cleans the outer surface of the hull, thereby improving the cleaning effect.

[0063] The removable cleaning cotton 74 and cleaning wipe 78 are easy to replace and maintain.

[0064] It should also be noted that the sliding rod 75 and the transmission gear 791 are limited to axial sliding, ensuring that the transmission gear 791 can drive the sliding rod 75 to rotate smoothly when it rotates, without affecting the axial sliding of the sliding rod 75.

[0065] When the support plate 2 moves from one side of the hull to the other on the slide rail 1, the connecting rod 54 will drive the cleaning support rod 71 to change with the position rod 52, so that the cleaning cotton 74 and the cleaning wipe 78 can adapt to the curvature of the outer surface of the hull of different sizes and shapes during the cleaning process, ensuring that the distance between the cleaning cotton 74 and the cleaning wipe 78 and the outer surface of the hull is always consistent, thereby improving the cleaning effect.

[0066] Dust is generated during the cleaning process using the cleaning cotton 74 and the cleaning wipe 78, which can affect the subsequent spraying effect. Therefore, a dust removal component 8 is provided on the positioning rod 52. The dust removal component 8 will absorb the dust generated by the cleaning cotton 74 and the cleaning wipe 78, ensuring that the dust generated during the cleaning process will not affect the subsequent spraying effect.

[0067] Specifically, the dust removal component 8 includes a suction pipe 81 that passes through the support sleeve 51, and a suction head 82 located inside the positioning support 56 is provided after one end of the suction pipe 81 passes through the positioning rod 52.

[0068] The suction pipe 81 draws air from the suction head 82, which then sucks up the dust generated by the cleaning cotton 74 and the cleaning wipe 78. At the same time, the suction pipe 81 moves the suction head 82 along with the positioning rod 52. The suction head 82 adjusts its position according to the curvature of the outer surface of the ship, ensuring that the dust generated during the cleaning process does not affect the subsequent painting effect.

[0069] The paint spray nozzle 61 is equipped with an L-shaped baffle 64 located on one side of the nozzle 63. The L-shaped baffle 64 is used to control the flow direction and range of the paint, prevent the paint from splashing or spreading excessively to areas that do not need to be sprayed, and ensure that the paint only covers the target area. The L-shaped baffle 64 can also protect the nozzle 63 from interference from external impurities to a certain extent and extend the service life of the nozzle 63.

[0070] Meanwhile, the L-shaped baffle 64 can also block the dust generated by the cleaning cotton 74 and the cleaning wipe 78, thereby improving the uniformity and adhesion of the coating and ensuring the quality of the final coating.

[0071] Example 3

[0072] Reference Figure 6 and Figure 7 Based on Embodiment 1 and Embodiment 2, the connecting ring 62 is slidably connected to the paint spray pipe 61, and the paint spray pipe 61 is provided with a threaded section 9.

[0073] By driving the adjustment knob 91, which is rotatably set on the connecting ring 62, to rotate, the adjustment knob 91 is connected to the threaded section 9 to change the length of the paint spray nozzle 61, thereby changing the distance between the nozzle 63 and the outer surface of the hull, so as to adapt to different spraying effects. This helps to avoid the coating being too thick or too thin, and ensures that the coating evenly covers the hull surface to obtain a high-quality coating.

[0074] Similarly, the connecting ring 72 is slidably connected to the cleaning support rod 71, and the cleaning support rod 71 is provided with a spiral section 92.

[0075] By driving the adjusting ring 93, which is rotatably mounted on the connecting ring 72, to rotate, the adjusting ring 93 changes the length of the extended cleaning support rod 71 through its threaded connection with the spiral section 92, thereby changing the tightness of contact between the cleaning cotton 74 and the cleaning wipe 78 and the surface of the hull, thus improving cleaning efficiency and quality.

[0076] The implementation principle of this invention is as follows:

[0077] (1): When spraying the coating on the surface of the ship's steel structure, the drive screw 94, which is rotatably installed on the U-shaped gantry 3, is first driven to rotate, and the vertical section of the U-shaped gantry 3 is embedded into the corresponding clearance groove 41.

[0078] (2): During this process, the moving sliding vertical plate 4 will drive the support sleeve 51, causing the positioning rod 52 to move away from the positioning support 56 at one end of the support sleeve 51 and approach the outer surface of the ship. The positioning roller 57 rotatably mounted on the positioning support 56 will contact the outer surface of the ship, causing the positioning rod 52 to move and retract into the support sleeve 51.

[0079] (3): When the positioning rod 52 retracts into the support sleeve 51, it will drive the connecting rod 54, which is slidably set in the positioning groove 53 and connected to one end of the positioning rod 52, to move together and compress the positioning spring 55 set between the side of the connecting rod 54 away from the sliding vertical plate 4 and the support sleeve 51. Under the influence of the curvature of the outer surface of the ship, the positioning rollers 57 of different heights contact the outer surface of the ship at different times, so that the positioning rod 52 retracts into the support sleeve 51 at different distances, thereby adapting to the curvature of the outer surface of the ship of different sizes and shapes.

[0080] (4): When the support plate 2 moves from one side of the hull to the other side on the slide rail 1, the positioning roller 57 will abut against the outer surface of the hull and rotate as the support plate 2 moves. Under the action of the positioning spring 55, the positioning roller 57 will drive the positioning rod 52 to adjust its position according to the curvature of the outer surface of the hull.

[0081] (5): Then, by driving the support plate 2 to move from one side of the hull to the other side on the slide rail 1, the positioning sprayer 5 will spray the paint evenly onto the steel structure surface of the hull. During the movement, the positioning sprayer 5 will adjust its position according to the curvature of the outer surface of the hull to ensure that the spraying distance is always consistent, and to ensure the stability and accuracy of the positioning sprayer 5 during operation, thereby improving the quality and uniformity of the coating.

[0082] (6): The moving connecting rod 54 will drive the paint spray pipe 61 to move together through the connecting ring 62, so that the nozzle 63 set at one end of the paint spray pipe 61 is close to the outer surface of the ship. Paint is delivered into the paint spray pipe 61 and sprayed through the nozzle 63. Under the drive of the connecting rod 54, the paint spray pipe 61 will change with the change of the positioning rod 52, so that the nozzle 63 can adapt to the curvature of the outer surface of the ship of different sizes and shapes during the moving spraying process, ensuring that the spraying distance is always consistent.

[0083] (7): The moving connecting rod 54 will drive the cleaning support rod 71 to move together through the connecting ring 72, so that the sliding rod 75 retracts into the cleaning disc 73 and compresses the reset spring 77 set between the rotating disc 76 and the cleaning disc 73.

[0084] (8): Then the motor will drive the cleaning disc 73 to rotate, so that the cleaning cotton 74 cleans the outer surface of the ship. At the same time, the cleaning disc 73 will drive the rotating disc 76 to rotate around the center of the cleaning disc 73 through the sliding rod 75, so that the cleaning wiping 78 and the cleaning cotton 74 clean the outer surface of the ship together.

[0085] (9): When the support plate 2 moves from one side of the hull to the other side on the slide rail 1, the connecting rod 54 will drive the lower cleaning support rod 71 to change with the position rod 52, so that the cleaning cotton 74 and the cleaning wipe 78 can adapt to the curvature of the outer surface of the hull of different sizes and shapes during the cleaning process, ensuring that the distance between the cleaning cotton 74 and the cleaning wipe 78 and the outer surface of the hull is always consistent, thereby improving the cleaning effect.

[0086] (10): At the same time, the suction pipe 81 will draw air from the suction head 82 and suck up the dust generated by the cleaning cotton 74 and the cleaning wipe 78 through the suction head 82. At the same time, the suction pipe 81 will drive the suction head 82 to move with the positioning rod 52, ensuring that the dust generated during the cleaning process will not affect the subsequent spraying effect.

[0087] (11): After the hull surface is painted, the drive screw 94 is reversed. The rotating drive screw 94 will drive the sliding vertical plate 4 to move on the support plate 2, so that the sliding vertical plates 4 on both sides move to opposite sides. The sliding vertical plate 4 will drive the positioning sprayer 5 away from the hull surface. Then the support plate 2 will be driven to move on the slide rail 1. The support plate 2 will drive the U-shaped gantry 3 and the positioning sprayer 5 set on the sliding vertical plate 4 to return to the initial state.

[0088] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A coating spraying device for the surface of a ship hull steel structure, comprising two slide rails (1), a support plate (2) slidably mounted on the slide rails (1), and a U-shaped gantry frame (3) jointly mounted between the two support plates (2), characterized in that: Sliding vertical plates (4) are slidably installed on both support plates (2). The sliding vertical plates (4) are provided with clearance grooves (41) corresponding to the vertical section of the U-shaped gantry frame (3). A positioning sprayer (5) is installed on the sliding vertical plates (4). The positioning sprayer (5) includes several support sleeves (51) evenly arranged on the opposite sides of two sliding vertical plates (4). A positioning rod (52) that slides through the sliding vertical plate (4) is slidably arranged in the support sleeve (51). A positioning groove (53) is opened on the support sleeve (51). A connecting rod (54) that is connected to one end of the positioning rod (52) is slidably arranged in the positioning groove (53). The positioning sprayer (5) also includes a positioning spring (55) between the side of the connecting rod (54) away from the sliding vertical plate (4) and the support sleeve (51), and a positioning support (56) is provided at the end of the positioning rod (52) away from the support sleeve (51), and a positioning roller (57) is rotatably provided on the positioning support (56). A spraying part (6) connected to the connecting rod (54) is provided on the sliding vertical plate (4); The spraying component (6) includes a paint spray pipe (61) that slides through the sliding vertical plate (4), a connecting ring (62) connected to the paint spray pipe (61) at one end of the connecting rod (54), and a nozzle (63) at one end of the paint spray pipe (61). A cleaner (7) connected to a connecting rod (54) is provided on the sliding vertical plate (4); The cleaner (7) includes a cleaning support rod (71) that passes through the support plate (2), and a connecting ring (72) that is connected to the connecting rod (54) is provided on the cleaning support rod (71). A cleaning disc (73) is rotatably mounted on one end of the cleaning support rod (71), and a removable cleaning cotton (74) is mounted on the cleaning disc (73). A number of circumferentially distributed sliding rods (75) are rotatably and slidably passed through the cleaning disc (73). A rotating disc (76) is provided at one end of the sliding rod (75). A return spring (77) is provided between the rotating disc (76) and the cleaning disc (73). A detachable cleaning wipe (78) is provided on the rotating disc (76). The connecting ring (62) is slidably connected to the paint spray pipe (61). The paint spray pipe (61) is provided with a threaded section (9). The connecting ring (62) is rotatably provided with an adjustment knob (91) that is threadedly connected to the threaded section (9). The second connecting ring (72) is slidably connected to the cleaning support rod (71). The cleaning support rod (71) is provided with a spiral section (92). The second connecting ring (72) is rotatably provided with an adjusting ring (93) that is threadedly connected to the spiral section (92).

2. A coating spraying device for the surface of a ship hull steel structure according to claim 1, characterized in that: A drive gear (79) is provided on the cleaning support rod (71), and a transmission gear (791) is rotatably provided on the cleaning disc (73) and is slidably connected to the sliding rod (75), and the transmission gear (791) meshes with the drive gear (79).

3. A coating spraying device for the surface of a ship hull steel structure according to claim 1, characterized in that: A dust removal component (8) is provided on the positioning rod (52); The dust removal component (8) includes a suction pipe (81) that passes through the support sleeve (51), and a suction head (82) located in the positioning support (56) is provided after one end of the suction pipe (81) passes through the positioning rod (52).

4. A ship hull steel structure surface coating spraying equipment according to claim 1, characterized in that: An L-shaped baffle (64) is provided on the paint spray pipe (61) located on one side of the nozzle (63).

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