Rotary spraying device

Abstract

A rotary spraying device, comprising: a circular platform, the circular platform comprising two symmetrically arranged semicircular ring plates, a gap being arranged between the inner side wall of the semicircular ring plate and a steel column, two annular guide rails being respectively mounted on the upper side of the two semicircular ring plates, a sliding block being slidingly connected to the upper side of the two annular guide rails through a horizontal driving device, a vertical column being vertically connected to the upper side of the sliding block, and a high-pressure spray head being movably connected to the vertical column in a vertical direction through a vertical driving device, the spraying end of the high-pressure spray head being arranged relative to the outer surface of the steel column. The annular guide rail and the sliding block are arranged, the sliding block is controlled to walk around the annular guide rail through the horizontal driving device, the high-pressure spray head can be rotated and sprayed horizontally around the steel column at 360 degrees, the high-pressure spray head is mounted on the vertical driving device of the vertical column, so that the up-and-down spraying of the high-pressure spray head is realized, the uniform spraying of the entire outer surface of the circular steel column can be realized through the control of the horizontal arc and the vertical up-and-down movement of the high-pressure spray head, the spraying efficiency is high, and the spraying effect is good.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a rotary spraying device. Background Technology

[0002] Modern engineering construction requires the extensive use of lightweight, high-strength steel. However, the biggest drawback of steel is its susceptibility to corrosion. Furthermore, steel exposed to high temperatures for extended periods requires fireproofing. Therefore, applying anti-corrosion, anti-rust, and fireproof coatings to the surface of steel to prevent contact with oxygen and moisture and thus oxidation is one of the effective means to ensure its durability.

[0003] Therefore, in infrastructure construction, it is necessary to spray anti-corrosion coatings on the surface of steel columns over a large area. Traditional spraying methods are carried out manually, using a handheld spray gun to spray the steel column surface. For example, Chinese patent CN215823391U discloses a spray gun for metal product spraying with controllable spray volume, which sprays rust-preventive liquid onto the steel column surface to prevent rust. However, during spraying, manual repeated spraying is required, and the spraying distance, speed, and angle must be continuously changed. Due to the varying distance from the spraying surface, the varying speed, and the varying spraying pressure, the uniformity and thickness of the overlapping surface during spraying are not the same, resulting in different actual spraying effects. This not only leads to low spraying efficiency but also unstable spraying quality. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects and problems of low spraying efficiency and unstable spraying quality in the existing technology, and to provide a rotary spraying device with high spraying efficiency and stable spraying quality.

[0005] To achieve the above objectives, the technical solution of this utility model is: a rotary spraying device, comprising: a circular platform, two annular guide rails, a slider, a column, and a high-pressure nozzle. The circular platform includes two symmetrically arranged semi-circular plates, with a gap between the inner wall of the semi-circular plates and the steel column. The two annular guide rails are semi-circular and are respectively installed on the upper side of the two semi-circular plates. The slider is installed on the annular guide rails and is slidably connected to the upper side of the annular guide rails through a horizontal driving device. The column is vertically connected to the upper side of the slider. The high-pressure nozzle is movably connected to the column in a vertical direction through a vertical driving device, and the spraying end of the high-pressure nozzle is arranged relative to the outer surface of the steel column.

[0006] The bottom plane of the semicircular ring plate is perpendicular to the steel column. The top plane of the semicircular ring plate is provided with an outward slope surface. The slope surface is in the shape of a frustum with the inner side higher than the outer side. A V-shaped intercepting groove is opened along the circumferential direction on the side of the slope surface near the annular guide rail. Through holes are opened vertically at intervals at the bottom of the V-shaped intercepting groove. The bottom surface of the semicircular ring plate is connected to a material collecting cup corresponding to each through hole. The material collecting cup is connected to the V-shaped intercepting groove.

[0007] Multiple safety protection columns are provided at the upper edge of the semi-circular ring plate, and windproof and dustproof plates are connected to the outer sides of the multiple safety protection columns.

[0008] The horizontal drive device includes a ring rack, a horizontal gear, and a travel motor. The travel motor is mounted on the upper side of the slider. The output shaft of the travel motor passes through the slider and is connected to the horizontal gear. The ring rack is connected to the inner side of the ring guide rail, and the horizontal gear is meshed with the ring rack.

[0009] The vertical drive device includes a vertical rack, a vertical gear, a moving motor, and a mounting base. The vertical rack is connected to the side of the column near the steel column. The mounting base is slidably connected to the outer circumference of the column in the vertical direction. The mounting base has a mounting cavity. The moving motor is installed in the mounting cavity. The vertical gear is connected to the output shaft of the moving motor. The vertical gear is meshed with the vertical rack. The high-pressure nozzle is connected to the outside of the mounting base.

[0010] A load-bearing steel ball is rolledly connected to the lower side of the slider, and the load-bearing steel ball is in contact with the upper surface of the annular guide rail.

[0011] The upper side of the semi-circular plate is also provided with a semi-circular support slide rail. The support slide rail is arranged relative to the outer side of the annular guide rail. The support slide rail and the annular guide rail are concentric and the center of the circle is located on the central axis of the steel column. A support slider is slidably connected to the upper side of the support slide rail. The support slider is connected to the slider through a connecting rod.

[0012] The upper side of the support slider is connected to a diagonal brace, and the other side of the diagonal brace is connected to the side of the column away from the steel column.

[0013] An auxiliary steel ball is rolled on the lower side of the support slider, and the auxiliary steel ball is in contact with the upper surface of the support slide rail.

[0014] The high-pressure nozzle is fan-shaped, with the smaller end of the fan-shaped nozzle connected to the outside of the vertical drive device, and the larger end of the fan-shaped nozzle arranged relative to the outer surface of the steel column.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, a rotary spraying device is provided. By setting an annular guide rail and a slider, the slider is controlled by a horizontal drive device to move around the annular guide rail, allowing the high-pressure nozzle to rotate 360 ​​degrees horizontally around a steel column for spraying. A column is vertically installed above the slider, and the high-pressure nozzle is mounted on a vertical drive device on the column, thus realizing up-and-down spraying of the high-pressure nozzle. By controlling the horizontal arc-shaped movement and vertical up-and-down movement of the high-pressure nozzle, the entire outer surface of the circular steel column can be sequentially sprayed. During the spraying process, the relative distance between the nozzle and the outer surface of the steel column remains constant, and the feeding pressure remains constant during the moving spraying. This ensures that the nozzle can evenly cover the entire spraying surface during stable and constant-speed spraying, resulting in high spraying efficiency and good spraying effect. Therefore, this utility model has high spraying efficiency and stable spraying quality.

[0017] 2. In this rotary spraying device, the top surface of the circular platform is machined into an outward-sloping surface, and a ring-shaped V-groove is machined at the lower part of the slope to prevent paint from continuing to flow outward. This prevents spilled paint from scattering and contaminating the already sprayed column surface. Holes are drilled in the V-groove, and collection cups are installed at the bottom of the holes for centralized collection, allowing for continuous collection and replacement. Therefore, this invention has a low degree of contamination and good protection of the finished surface.

[0018] 3. In this rotary spraying device, a temporary sealed space is constructed by setting up a windproof and dustproof plate. This not only facilitates the use of a drying device to shorten the time interval between the next spraying layer, but also improves the texture of the paint film and prevents wind and pollution, avoiding the impact of dust and moisture in the air on the coating. Therefore, this device achieves a better spraying effect.

[0019] 4. In this rotary spraying device, the slider moves horizontally 360 degrees along the annular guide rail via gear and rack transmission. Because the supporting slide rail, annular guide rail, and steel column are arranged in a concentric circle structure on a plane, the center of the guide rail remains on the axis of the steel column throughout the overall crawling process of the spraying device. This ensures that the high-pressure nozzle remains aligned with the outer surface of the steel column and that the distance from the spraying surface remains constant during movement. The coating thickness is ensured by controlling the nozzle's movement speed, and uniform spraying is ensured by controlling the high-pressure nozzle's up-and-down or left-and-right movement along a predetermined path, preventing drips and cracking. Therefore, this invention is convenient to use and produces high-quality spraying.

[0020] 5. In this rotary spraying device, two closed-loop circulation tracks are formed by setting an outer ring support slide rail and an inner ring annular guide rail. Simultaneously, the support slider is connected to the slider as a single unit via a connecting rod. This helps the slider resist the reaction force generated by the column on the high-pressure nozzle during spraying, which could cause the spraying device to vibrate and affect the spraying effect. Steel balls are added between the support slider and the guide rail at the bottom of the slider to effectively prevent deformation and loosening of the rolling parts during the application of force, making the slider's movement relatively stable and smooth. Therefore, this invention has high stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a rotary spraying device according to this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the circular platform, horizontal drive device, vertical drive device, annular guide rail, and slider in this utility model.

[0023] Figure 3 This is a partial structural diagram of the semi-circular ring plate, annular guide rail, slider, supporting slide rail, and supporting slider in this utility model.

[0024] Figure 4 This is a structural schematic diagram of the semi-circular ring plate, the annular guide rail, and the supporting slide rail in this utility model.

[0025] Figure 5 This is a cross-sectional schematic diagram of the annular guide rail, slider, support rail, and support slider in this utility model.

[0026] Figure 6 This is a partial structural schematic diagram of the column and vertical drive device in this utility model.

[0027] In the diagram: 1. Steel column; 2. Climbing robot; 3. Circular platform; 31. Semicircular ring plate; 32. Slope surface; 33. V-shaped intercepting channel; 34. Through hole; 35. Collection cup; 4. Circular guide rail; 5. Slider; 6. Horizontal drive device; 61. Circular rack; 62. Horizontal gear; 63. Walking motor; 7. Vertical drive device; 8. Vertical rack; 81. Vertical gear; 82. Moving motor; 83. Mounting base; 84. Mounting cavity; 85. High-pressure nozzle; 9. Safety protection column; 10. Windproof and dustproof plate; 11. Load-bearing steel ball; 12. Support slide rail; 13. Support slider; 14. Diagonal brace; 15. Connecting rod; 16. Auxiliary steel ball; 17. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1:

[0030] See Figure 1 and Figure 2 A rotary spraying device includes: a circular platform 3, two annular guide rails 4, a slider 5, a column 7, and a high-pressure nozzle 9. The circular platform 3 includes two symmetrically arranged semi-circular ring plates 31. The inner sidewall of the semi-circular ring plate 31 maintains an appropriate gap with the steel column 1 to facilitate the climbing of the equipment. The two annular guide rails 4 are semi-circularly disconnected and respectively installed on the upper side of the two semi-circular ring plates 31. The slider 5 is installed on the annular guide rail 4 and is slidably connected to the upper side of the annular guide rail 4 through a horizontal drive device 6. The column 7 is vertically connected to the upper side of the slider 5. The high-pressure nozzle 9 is movably connected to the column 7 in a vertical direction through a vertical drive device 8. The spraying end of the high-pressure nozzle 9 is arranged relative to the outer surface of the steel column 1. Multiple safety protection columns 10 are provided at the upper edge of the semi-circular ring plate 31, and windproof and dustproof plates 11 are connected to the outer side of the multiple safety protection columns 10.

[0031] In this embodiment, a climbing robot 2 can be set below the rotary spraying device. The climbing robot 2 drives the rotary spraying device to move upward along the steel column 1. Before spraying, two semi-circular ring plates 31 are spliced ​​to the outside of the steel column 1 and connected to the climbing robot 2 below. At this time, the two semi-circular ring guide rails 4 are combined into a ring, and the two windproof and dustproof plates 11 form a cover. Combined with the circular platform 3, a temporary sealed working space is constructed.

[0032] During spraying, the horizontal drive device 6 controls the slider 5 to move horizontally in a 360-degree circular motion along the annular guide rail 4, which drives the high-pressure nozzle 9 to rotate horizontally around the steel column in a 360-degree rotation. At the same time, the vertical drive device 8 controls the high-pressure nozzle 9 to move up and down on the column 7. By controlling the horizontal arc movement and vertical up and down spraying of the high-pressure nozzle 9, the sequential spraying of the outer surface of the circular steel column 1 can be achieved.

[0033] Example 2:

[0034] The basic content is the same as in Example 1, except that:

[0035] See Figure 3 and Figure 4 The bottom plane of the semicircular ring plate 31 is perpendicular to the steel column 1. The top plane of the semicircular ring plate 31 is provided with an outward slope surface 32. The slope surface 32 is a frustum shape with the inner side higher than the outer side. A V-shaped intercepting groove 33 is opened along the circumferential direction on the side of the slope surface 32 near the annular guide rail 4. Through holes 34 are opened at intervals along the vertical direction at the bottom of the V-shaped intercepting groove 33. The bottom surface of the semicircular ring plate 31 is connected to a collecting cup 35 corresponding to the through holes 34. The collecting cup 35 is connected to the V-shaped intercepting groove 33.

[0036] In this embodiment, the V-shaped intercepting groove 33 is arranged at the lowest point of the top surface of the circular platform, so that the paint spilled during the spraying process is collected in the V-shaped intercepting groove 33 and then flows into the collecting cup 35 through the through hole 34. The collecting cup 35 is replaced after it is full, which can prevent the paint spilled during the spraying process from scattering everywhere and contaminating the surface of the already sprayed column.

[0037] Example 3:

[0038] The basic content is the same as in Example 1, except that:

[0039] See Figure 3 and Figure 5 The horizontal drive device 6 includes an annular rack 61, a horizontal gear 62, and a travel motor 63. The travel motor 63 is mounted on the upper side of the slider 5. The output shaft of the travel motor 63 passes through the slider 5 and is connected to the horizontal gear 62. The annular rack 61 is connected to the inner side of the annular guide rail 4. The horizontal gear 62 is meshed with the annular rack 61. A load-bearing steel ball 12 is rolled on the lower side of the slider 5. The load-bearing steel ball 12 is in contact with the upper surface of the annular guide rail 4.

[0040] In this embodiment, the cross-section of the annular guide rail 4 is I-shaped, the annular rack 61 is connected to the inner wall of the annular guide rail 4, the slider 5 is connected to the outer wall of the annular guide rail 4 by a rolling element, the other side of the slider 5 is connected to the annular rack 61 by a horizontal gear 62, a load-bearing steel ball 12 is added to the middle position of the bottom of the slider 5 to support the omnidirectional movement, the walking motor 63 rotates to drive the column 7 to rotate horizontally 360 degrees around the annular rack 61 so that the high pressure nozzle 9 on the column 7 moves horizontally 360 degrees synchronously for operation.

[0041] Example 4:

[0042] The basic content is the same as in Example 1, except that:

[0043] See Figure 3 and Figure 6 The vertical drive device 8 includes a vertical rack 81, a vertical gear 82, a moving motor 83, and a mounting base 84. The vertical rack 81 is connected to the side of the column 7 near the steel column 1. The mounting base 84 is slidably connected to the outer circumference of the column 7 in the vertical direction. The mounting base 84 has a mounting cavity 85. The moving motor 83 is installed in the mounting cavity 85. The vertical gear 82 is connected to the output shaft of the moving motor 83 and meshes with the vertical rack 81. The high-pressure nozzle 9 is connected to the outside of the mounting base 84. The high-pressure nozzle 9 is fan-shaped. The small end of the high-pressure nozzle 9 is connected to the outside of the vertical drive device 8, and the large end of the high-pressure nozzle 9 is arranged relative to the outer surface of the steel column 1.

[0044] In this embodiment, the large end of the high-pressure nozzle 9 refers to the arc segment of the fan shape. The inner side of the column 7 is machined into a vertical rack 81. The vertical gear 82 is rotated by the operation of the moving motor 83. Since the moving motor 83 is connected to the mounting base 84, it will drive the mounting base 84 to move vertically along the column 7, so that the high-pressure nozzle 9 moves up and down on the column 7, thereby achieving uniform coating in the vertical direction of the steel column 1.

[0045] Example 5:

[0046] The basic content is the same as in Example 1, except that:

[0047] See Figure 3 and Figure 5 The upper side of the semi-circular ring plate 31 is also provided with a semi-circular support slide rail 13. The support slide rail 13 is arranged on the outer side of the annular guide rail 4. The support slide rail 13 and the annular guide rail 4 are concentric and the center is located on the central axis of the steel column 1. The upper side of the support slide rail 13 is slidably connected to a support slider 14. The support slider 14 is connected to the slider 5 through a connecting rod 16. The upper side of the support slider 14 is connected to a diagonal brace 15. The other side of the diagonal brace 15 is connected to the side of the column 7 away from the steel column 1. The lower side of the support slider 14 is rotatably connected to an auxiliary steel ball 17. The auxiliary steel ball 17 is in contact with the upper surface of the support slide rail 13.

[0048] In this embodiment, the cross-section of the support slide rail 13 is I-shaped, and the support slider 14 is U-shaped. The support slider 14 is connected to the outer wall of the support slide rail 13 by a rolling element. An auxiliary steel ball 17 is added to the inner top wall of the support slider 14 to support omnidirectional movement. The two side walls of the support slider 14 are in contact with the left and right sides of the support slide rail 13. When the slider 5 moves, it will drive the support slider 14 to move synchronously on the support slide rail 13 through the connecting rod 16 so that the column 7 is effectively supported.

[0049] Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rotary spraying device, characterized in that, include: The circular platform (3), two annular guide rails (4), slider (5), column (7), and high-pressure nozzle (9) are provided. The circular platform (3) includes two symmetrically arranged semi-circular ring plates (31). There is a gap between the inner sidewall of the semi-circular ring plate (31) and the steel column (1). The two annular guide rails (4) are semi-circular and are respectively installed on the upper side of the two semi-circular ring plates (31). The slider (5) is installed on the annular guide rail (4) and is slidably connected to the upper side of the annular guide rail (4) through a horizontal drive device (6). The column (7) is vertically connected to the upper side of the slider (5). The high-pressure nozzle (9) is movably connected to the column (7) in the vertical direction through a vertical drive device (8). The spraying end of the high-pressure nozzle (9) is arranged relative to the outer surface of the steel column (1).

2. The rotary spraying device according to claim 1, characterized in that: The bottom plane of the semicircular ring plate (31) is perpendicular to the steel column (1). The top plane of the semicircular ring plate (31) is provided with an outward slope surface (32). The slope surface (32) is a frustum shape with the inner side higher than the outer side. A V-shaped intercepting groove (33) is opened along the circumferential direction on the side of the slope surface (32) near the annular guide rail (4). The bottom of the V-shaped intercepting groove (33) is opened with through holes (34) at intervals along the vertical direction. The bottom surface of the semicircular ring plate (31) is connected to a collection cup (35) corresponding to the through holes (34). The collection cup (35) is connected to the V-shaped intercepting groove (33).

3. The rotary spraying device according to claim 1, characterized in that: Multiple safety protection columns (10) are provided on the upper edge of the semi-circular ring plate (31), and windproof and dustproof plates (11) are connected to the outer side of the multiple safety protection columns (10).

4. The rotary spraying device according to claim 1, characterized in that: The horizontal drive device (6) includes an annular rack (61), a horizontal gear (62), and a walking motor (63). The walking motor (63) is mounted on the upper side of the slider (5). The output shaft of the walking motor (63) passes through the slider (5) and is connected to the horizontal gear (62). The annular rack (61) is connected to the inner side of the annular guide rail (4), and the horizontal gear (62) is meshed with the annular rack (61).

5. A rotary spraying device according to claim 1, characterized in that: The vertical drive device (8) includes a vertical rack (81), a vertical gear (82), a moving motor (83), and a mounting base (84). The vertical rack (81) is connected to the side of the column (7) near the steel column (1). The mounting base (84) is slidably connected to the outer circumference of the column (7) in the vertical direction. The mounting base (84) has a mounting cavity (85) inside. The moving motor (83) is installed in the mounting cavity (85). The vertical gear (82) is connected to the output shaft of the moving motor (83). The vertical gear (82) is meshed with the vertical rack (81). The high-pressure nozzle (9) is connected to the outside of the mounting base (84).

6. A rotary spraying device according to claim 1, characterized in that: A load-bearing steel ball (12) is rolled on the lower side of the slider (5), and the load-bearing steel ball (12) is in contact with the upper surface of the annular guide rail (4).

7. A rotary spraying device according to claim 1, characterized in that: The upper side of the semi-circular plate (31) is also provided with a semi-circular support slide rail (13). The support slide rail (13) is arranged on the outer side of the annular guide rail (4). The support slide rail (13) and the annular guide rail (4) are concentric and the center of the circle is located on the central axis of the steel column (1). The upper side of the support slide rail (13) is slidably connected to a support slider (14). The support slider (14) is connected to the slider (5) through a connecting rod (16).

8. A rotary spraying device according to claim 7, characterized in that: The upper side of the support slider (14) is connected to a diagonal brace (15), and the other side of the diagonal brace (15) is connected to the side of the column (7) away from the steel column (1).

9. A rotary spraying device according to claim 7, characterized in that: An auxiliary steel ball (17) is rolled on the lower side of the support slider (14), and the auxiliary steel ball (17) is in contact with the upper surface of the support slide rail (13).

10. A rotary spraying device according to claim 1, characterized in that: The high-pressure nozzle (9) is fan-shaped, with the small end of the fan-shaped nozzle (9) connected to the outside of the vertical drive device (8), and the large end of the fan-shaped nozzle (9) arranged relative to the outer surface of the steel column (1).

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