Anti-corrosion spraying equipment for propeller blade for ship
By designing anti-corrosion spraying equipment for ship propeller blades with simulated structures and spray head structures, the problem that traditional spraying equipment cannot achieve coating uniformity is solved, and efficient and uniform spraying of ship propeller blades is achieved, which improves production efficiency and economic benefits.
Patent Information
- Application Number
- CN202411945829.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-02-07
AI Technical Summary
Traditional spraying equipment cannot carefully spray each blade of the ship's propeller blade, resulting in inconsistent coating thickness and poor uniformity.
A kind of anti-corrosion spraying equipment for ships was designed, using simulated structure and spray head structure to simulate the surface shape trajectory of the propeller blade on the impeller to achieve accurate spraying of the propeller blade on the other impeller.
Through the design of simulated structure and nozzle structure, the uniformity and accuracy of spray coating are achieved, and the problem of inconsistent coating thickness is solved. It is suitable for propeller blade surfaces of different shapes and sizes, improving production efficiency and economic benefits.
Smart Images
Figure CN119387070A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of spraying equipment, and in particular to anti-corrosion spraying equipment for propeller blades of ships. Background Art
[0002] With the rapid development of the marine transportation industry, ships, as an important means of transportation, play a vital role in international trade. However, due to being in corrosive environments such as seawater and salt spray for a long time, the maintenance of ships has become an issue that cannot be ignored, especially for key components such as propeller blades. Since they are in direct contact with seawater, they are easily affected by corrosion, thereby reducing their service life and efficiency.
[0003] As one of the core components of the ship's propulsion system, the performance of propeller blades directly affects the ship's navigation safety and economic benefits. Corrosion will not only increase the surface roughness of the propeller blades and affect the fluid dynamics performance, but also cause a decrease in material strength, which may eventually lead to damage to the propeller blades, increase maintenance costs, and even cause safety accidents. Therefore, anti-corrosion treatment of propeller blades is particularly important.
[0004] At present, the anti-corrosion measures for propeller blades mainly include coating protection, sacrificial anode method, etc. Among them, coating protection is one of the most commonly used methods. However, the traditional spraying method mainly sprays the impeller as a whole, and it is impossible to spray each blade on the impeller separately, resulting in inconsistent coating thickness and poor uniformity on the blades. Summary of the invention
[0005] In view of at least one of the above technical problems, the present invention provides a propeller blade anti-corrosion spraying device for ships, and the specific technical solution adopted is: According to a first aspect of the present invention, there is provided a propeller blade anti-corrosion spraying device for a ship, comprising a clamping structure and a simulation structure for fixing two impellers, the simulation structure being provided with a spray head structure for spraying each propeller blade on the impeller, the simulation structure enabling the spray head structure to simulate the surface shape trajectory of the propeller blade on one impeller and spray the surface of the propeller blade on the other impeller; The simulation structure comprises a long rod, on which two turntables are rotatably arranged, each turntable is slidably interspersed with a sliding rod, and the sliding direction of the sliding rod is along the radial direction of the turntable, one end of the two sliding rods is fixed with a fixed seat, the other ends of the two sliding rods are connected by a sub-plate, and the two fixed seats are connected by a connecting rod; Among them, the nozzle structure is fixed on a fixed seat, and three top columns are arranged on the other fixed seat. The fixed seat is rotatably connected to the connecting rod, the sub-plate is rotatably connected to the sliding rod, the sub-plate, two sliding rods and the connecting rod form a parallelogram, the distance between the two turntables, the length of the sub-plate and the distance between the two fixed seats are all equal, and an elastic structure is arranged between the sub-plate and the long rod.
[0006] In some embodiments of the present invention, the elastic structure includes two inclined rods rotatably mounted on the side walls of the long rod, the two inclined rods are directed in opposite directions, and the two inclined rods are connected by spring plates. A mounting seat is provided at the end of the inclined rod away from the long rod, and the mounting seat is mounted on the sub-plate.
[0007] In some embodiments of the present invention, the mounting seat is slidably connected to the sub-plate.
[0008] In some embodiments of the present invention, the connecting rod is in a bow shape.
[0009] In some embodiments of the present invention, the nozzle structure consists of a nozzle and a conical nozzle, the conical nozzle is connected and installed at the end of the nozzle, the shape of the conical nozzle is set to be conical, a conical head consistent with the shape of the conical nozzle is arranged inside the conical nozzle, a threaded column is fixed on the conical head, the threaded column is coaxial with the nozzle, the threaded column passes through the nozzle and is threadedly connected to each other, the threaded column is locked on the nozzle by a bolt, and a feed pipe is connected to the nozzle.
[0010] In some embodiments of the present invention, the clamping structure includes a base, a base column, two secondary columns and two threaded rings, the base is used to support the base column thereon, the base column is rotatably mounted on the base laterally, the two secondary columns are coaxially fixed at both ends of the base column, a plurality of sliding edges for use with a plurality of key grooves on the impeller are arranged on the outer wall of the secondary column, and threads for use with the threaded rings are arranged on the sliding edges; Among them, when the impeller is sleeved on the secondary column, the end face of the impeller contacts the end face of the base column, and the base column positions the impeller. A first motor is arranged on the base, and a transmission wheel is arranged at the output end of the first motor. A transmission ring is arranged on the transmission wheel, and the transmission ring is sleeved on the base column.
[0011] In some embodiments of the present invention, the spraying equipment also includes two side panels and a cross beam located between the two side panels, a movable platform is slidably arranged at the bottom of the cross beam, the movable platform is fixedly connected to the long rod by a vertical rod, a threaded rod is inserted into the movable platform, the threaded rod is threadedly connected to the movable platform, one end of the threaded rod is rotatably mounted on one side panel, a second motor is arranged at the other end of the threaded rod, and the second motor is fixed to another side panel.
[0012] In some embodiments of the present invention, the spraying equipment also includes a lifting structure, which is used to drive the long rod to move in the vertical direction. The lifting structure includes a top plate and a vertical rail installed on each side plate. The side plate slides vertically on the vertical rail, and the vertical rail is fixed at the bottom of the top plate. The top plate and the cross beam are connected by multiple cylinders.
[0013] The beneficial effects of the present invention are: Through the designed parallelogram structure and elastic structure, the nozzle structure can simulate the surface shape of the propeller blade on one impeller to spray the propeller blade on another impeller, and the structure of three top columns can make the nozzle structure vertically facing the propeller blade surface no matter where it is on the propeller blade, thereby realizing the vertical and equidistant spraying operation of the nozzle structure on the propeller blade, thereby ensuring the uniformity of the coating and solving the problem of inconsistent coating thickness in traditional spraying methods; the equipment simulates the nozzle structure according to the surface shape of the propeller blade The shape of the trajectory moves, thereby improving the spraying accuracy, and there is no need to scan and model the shape of the propeller blade and then control the tedious operation and complex structure of the nozzle structure movement. Under the premise of improving the uniformity of spraying, the structure is simpler and the cost is lower. Since the spraying is carried out in a simulated way, the equipment can adapt to the surfaces of propeller blades of different shapes and sizes, increasing the application range of the equipment. In summary, this new type of ship propeller blade anti-corrosion spraying equipment not only improves the spraying quality, but also improves the production efficiency and economic benefits. It is an effective way to solve the shortcomings of traditional anti-corrosion measures. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the middle base and the structure above it; Figure 3 yes Figure 1 Schematic diagram of the middle top plate and the structure above it; Figure 4 is a schematic structural diagram of a simulation structure in an embodiment of the present invention; Figure 5 yes Figure 4 Schematic diagram of the structure viewed from above; Figure 6is a schematic structural diagram of a nozzle structure in an embodiment of the present invention; Figure 7 is a schematic structural diagram of an impeller in an embodiment of the present invention; Figure 8 It is a schematic diagram of the structure of the base column in an embodiment of the present invention. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.
[0018] like Figures 1 to 8 As shown, a marine propeller blade anti-corrosion spraying device of the present invention comprises a clamping structure and a simulation structure for fixing two impellers 1, wherein the simulation structure is provided with a spray head structure 9 for spraying each propeller blade 2 on the impeller 1, and the simulation structure enables the spray head structure 9 to simulate the surface shape trajectory of the propeller blade 2 on one impeller 1 and spray the surface of the propeller blade 2 on the other impeller 1; The simulation structure includes a long rod 3, on which two turntables 4 are rotatably arranged, and a slide bar 5 is slidably inserted on each turntable 4, and the sliding direction of the slide bar 5 is along the radial direction of the turntable 4, one end of the two slide bars 5 is fixed with a fixed seat 6, the other ends of the two slide bars 5 are connected by a sub-plate 8, and the two fixed seats 6 are connected by a connecting rod 7; Among them, the nozzle structure 9 is fixed on a fixed seat 6, three top columns 10 are arranged on the other fixed seat 6, the fixed seat 6 is rotatably connected to the connecting rod 7, the sub-plate 8 is rotatably connected to the sliding rod 5, the sub-plate 8, the two sliding rods 5 and the connecting rod 7 form a parallelogram, the distance between the two turntables 4, the length of the sub-plate 8 and the distance between the two fixed seats 6 are all equal, and an elastic structure is arranged between the sub-plate 8 and the long rod 3.
[0019] In the above embodiment, the long rod 3 is located between the line connecting the two fixed seats 6 and the sub-plate 8, and the lines connecting the long rod 3, the sub-plate 8 and the two fixed seats 6 are parallel and equal, so that the lines connecting the sub-plate 8 and the two fixed seats 6 form a parallelogram, and the long rod 3 supports the two sliding rods 5 through the two turntables 4, that is, when one fixed seat 6 moves, the other fixed seat 6 will follow and move synchronously, and the directions of the two fixed seats 6 are always consistent, and the connecting rod 7 is used to connect the two fixed seats 6.
[0020] Based on the above embodiment, the clamping structure can clamp the two impellers 1 so that the two impellers 1 are arranged in the same direction and are coaxial. One impeller 1 serves as a simulation basis, while the other impeller 1 is sprayed. The elastic structure is designed to provide elastic force for the sub-plate 8, so that the sliding rod 5 is used to push the fixing seat 6 on the top column 10 toward the surface of the propeller blade 2 on the impeller 1 serving as the simulation basis, so that the three top columns 10 are in contact with the surface of the propeller blade 2. The design of the three top columns 10 can limit the direction of the fixing seat 6 on the top column 10, so that the fixing seat 6 is always perpendicular to the surface of the propeller blade 2. When the long rod 3 moves along the axial direction of the impeller 1, the long rod 3 will push the top column 10 to slide on the propeller blade 2 serving as the simulation basis, and the three top columns 10 are always in contact with the surface of the propeller blade 2, so that no matter the propeller No matter what curvature the curved surface of the blade 2 is, the fixing seat 6 can always be vertically oriented to the surface of the propeller blade 2, and due to the limitation of the shape of the propeller blade 2, the propeller blade 2 can push the fixing seat 6 on the top column 10 in the reverse direction to move, so that the distance between the fixing seat 6 and the long rod 3 changes, that is, the slide bar 5 slides on the turntable 4, and the fixing seat 6 drives the turntable 4 to rotate through the slide bar 5. Due to the effect of the parallelogram structure, the spray head structure 9 is always vertically oriented to the surface of the propeller blade 2 on the impeller 1 to be sprayed, and the distance between the spray head structure 9 and the surface of the propeller blade 2 is always maintained within the specified range, that is, the spray head structure 9 can realize vertical and equidistant spraying operation on the propeller blade 2, so as to facilitate the uniform spraying of the surface of the propeller blade 2, and the spray head structure 9 does not need to contact the propeller blade 2 to be sprayed, thereby avoiding leaving marks on the surface of the propeller blade 2 to be sprayed.
[0021] During the spraying process, the long rod 3 moves back and forth along the axis of the impeller 1 and gradually moves away from the axis of the impeller 1, so that the nozzle structure 9 can achieve a comprehensive spraying operation on the surface of the propeller blade 2 to be sprayed. Due to the structural design of the turntable 4, the sliding rod 5 and the sub-plate 8, the long rod 3 only needs to move back and forth in the lateral direction, and there is no need to make the long rod 3 perform complex movements along the irregular shape of the surface of the propeller blade 2.
[0022] In actual operation, after one side of a propeller blade 2 on the impeller 1 is sprayed, the angle of the spraying impeller 1 is adjusted so that the next propeller blade 2 is rotated to a predetermined angle and sprayed. In this way, the spraying operation is completed on one side of multiple propeller blades 2 on the impeller 1 in a cycle, and then the directions of the two impellers 1 are changed, and the other side of the propeller blade 2 is sprayed, thereby achieving comprehensive spraying of the propeller blade 2. When the nozzle structure 9 moves to the edge of the propeller blade 2, the paint sprayed by the nozzle structure 9 can be directly attached to the edge of the propeller blade 2, so that there is no need to spray the edge of the propeller blade 2 separately. Of course, if the thickness of the propeller blade 2 is large, the edge of the propeller blade 2 can be manually sprayed after the spraying of both sides of the propeller blade 2 is completed. This spraying method that simulates the shape of the propeller blade 2 can more intuitively move the nozzle structure 9 along a predetermined trajectory without scanning and modeling the shape of the propeller blade 2 and then spraying the propeller blade 2. It is simpler, more convenient and faster.
[0023] By means of the designed parallelogram structure and elastic structure, the nozzle structure 9 can spray the propeller blade 2 on another impeller 1 on the basis of simulating the surface shape of the propeller blade 2 on one impeller 1, and by means of the structure of the three top columns 10, the nozzle structure 9 can be made to face the surface of the propeller blade 2 vertically at any position on the propeller blade 2, thereby realizing the vertical and equidistant spraying operation of the nozzle structure 9 on the propeller blade 2, thereby ensuring the uniformity of the coating and solving the problem of inconsistent coating thickness in the traditional spraying method; the equipment can make the nozzle structure 9 spray the propeller blade 2 vertically and equidistantly at any position on the propeller blade 2 by means of simulation. The trajectory of the propeller blade 2 surface shape moves, thereby improving the spraying accuracy, and there is no need to scan and model the shape of the propeller blade 2 and then control the cumbersome operation and complex structure of the movement of the nozzle structure 9. Under the premise of improving the uniformity of spraying, the structure is simpler and the cost is lower; since the spraying is carried out in a simulated manner, the equipment can adapt to the surfaces of propeller blades 2 of different shapes and sizes, increasing the application range of the equipment; in summary, this new type of ship propeller blade anti-corrosion spraying equipment not only improves the spraying quality, but also improves the production efficiency and economic benefits, and is an effective way to solve the shortcomings of traditional anti-corrosion measures.
[0024] In some embodiments of the present invention, Figure 4As shown, the elastic structure includes two inclined rods 11 rotatably mounted on the side walls of the long rod 3, the two inclined rods 11 are in opposite directions, and the two inclined rods 11 are connected by a spring sheet 12, and a mounting seat 13 is provided at the end of the inclined rod 11 away from the long rod 3, and the mounting seat 13 is mounted on the sub-plate 8.
[0025] In the above embodiment, the inclined rod 11 is rotatably connected to the mounting seat 13, and the spring piece 12 will generate an elastic thrust on the two inclined rods 11, thereby causing the inclined rod 11 to have a movement tendency toward the long rod 3. The inclined rod 11 pulls the sub-plate 8 toward the long rod 3 through the mounting seat 13, thereby providing an elastic force for the fixing seat 6.
[0026] In some embodiments of the present invention, Figure 4 As shown, the mounting seat 13 is slidably connected to the sub-plate 8 .
[0027] In the above embodiment, since the slide rod 5 can slide on the turntable 4, and the slide rod 5 and the turntable 4 can rotate, the sub-plate 8 and the long rod 3 will produce relative movement while maintaining relative parallelism. Since the connection point of the inclined rod 11 on the long rod 3 cannot move, it is necessary to enable the mounting seat 13 to slide on the sub-plate 8 to ensure that the structure can operate normally.
[0028] In some embodiments of the present invention, Figure 5 As shown, the connecting rod 7 is in the shape of an arch.
[0029] In the above embodiment, since the propeller blades 2 are inclined relative to the axis of the impeller 1 during actual assembly, in order to connect the two fixing seats 6 and avoid the connecting rod 7 and the propeller blades 2 colliding with each other and obstructing the movable range of the fixing seat 6, the connecting rod 7 needs to be in the shape of a bow.
[0030] In some embodiments of the present invention, Figure 6 As shown, the nozzle structure 9 is composed of a nozzle 14 and a conical nozzle 15. The conical nozzle 15 is connected and installed at the end of the nozzle 14. The shape of the conical nozzle 15 is set to be conical. A conical head 16 with the same shape as the conical nozzle 15 is arranged inside the conical nozzle 15. A threaded column 17 is fixed on the conical head 16. The threaded column 17 is coaxial with the nozzle 14. The threaded column 17 passes through the nozzle 14 and is threadedly connected to each other. The threaded column 17 is locked on the nozzle 14 by a bolt 18. A feed pipe 19 is connected to the nozzle 14.
[0031] In the above embodiment, the gap between the outer wall of the cone head 16 and the inner wall of the cone nozzle 15 serves as a paint delivery channel, that is, the paint can enter the nozzle 14 through the feed pipe 19, and the paint in the nozzle 14 enters the cone nozzle 15 and then moves toward the opening position of the cone nozzle 15 through the gap between the cone head 16 and the cone nozzle 15 and is sprayed out through the opening of the cone nozzle 15, thereby realizing the paint spraying operation.
[0032] It should be noted that when using paints with different particle sizes, the bolt 18 can be loosened and the threaded column 17 can be rotated to adjust the gap between the cone head 16 and the cone nozzle 15, so as to facilitate the nozzle structure 9 to be suitable for different working conditions.
[0033] In some embodiments of the present invention, Figure 2 and Figure 8 As shown, the clamping structure includes a base 20, a base column 21, two secondary columns 22 and two threaded rings 23. The base 20 is used to support the base column 21 thereon. The base column 21 is rotatably mounted on the base 20 in a transverse direction. The two secondary columns 22 are coaxially fixed at both ends of the base column 21. The outer wall of the secondary column 22 is provided with a plurality of sliding edges used in conjunction with a plurality of key grooves on the impeller 1. The sliding edges are provided with threads used in conjunction with the threaded rings 23. Among them, when the impeller 1 is sleeved on the secondary column 22, the end face of the impeller 1 contacts the end face of the base column 21, and the base column 21 positions the impeller 1. A first motor 25 is arranged on the base 20, and a transmission wheel 26 is arranged at the output end of the first motor 25. A transmission ring 24 is arranged on the transmission wheel 26, and the transmission ring 24 is sleeved on the base column 21.
[0034] In the above embodiment, the two impellers 1 can be respectively mounted on the two secondary columns 22, and the diameter of the base column 21 is larger than the diameter of the secondary column 22. Therefore, there will be a shoulder position between the base column 21 and the secondary column 22, and the shoulder position can block the end face of the impeller 1, thereby limiting the position of the impeller 1. The sliding edge on the secondary column 22 can slide through the keyway in the central circular hole of the impeller 1, thereby limiting the impeller 1 through the keyway and the sliding edge. The threaded ring 23 can be threadedly mounted on the thread on the sliding edge, thereby locking the position of the impeller 1. The first motor 25 and the transmission wheel 26 can drive the base column 21 to rotate through the transmission ring 24, thereby driving the two impellers 1 to rotate, which is convenient for spraying the propeller blades 2 at different positions on the impeller 1.
[0035] In some embodiments of the present invention, Figure 3As shown, the spraying equipment also includes two side panels 27 and a cross beam 28 located between the two side panels 27. A movable platform 29 is slidably arranged at the bottom of the cross beam 28. The movable platform 29 is fixedly connected to the long rod 3 through a vertical rod 30. A threaded rod 31 is inserted into the movable platform 29. The threaded rod 31 is threadedly connected to the movable platform 29. One end of the threaded rod 31 is rotatably mounted on one side panel 27. A second motor 32 is arranged on the other end of the threaded rod 31. The second motor 32 is fixed to the other side panel 27.
[0036] In the above embodiment, the side plates 27 and the cross beams 28 can support and fix the long rod 3. When the second motor 32 is running, it can push the movable platform 29 to move laterally through the threaded rod 31, so that the movable platform 29 drives the long rod 3 to move laterally through the vertical rod 30, which is convenient for providing power for the long rod 3.
[0037] In some embodiments of the present invention, Figure 3 As shown, the spraying equipment also includes a lifting structure, which is used to drive the long rod 3 to move in the vertical direction. The lifting structure includes a top plate 33 and a vertical rail 34 installed on each side plate 27. The side plate 27 slides vertically on the vertical rail 34, and the vertical rail 34 is fixed to the bottom of the top plate 33. The top plate 33 is connected to the cross beam 28 by a plurality of cylinders 35.
[0038] In the above embodiment, the top plate 33 can support the vertical rail 34, the cylinder 35 and the side plate 27. When the cylinder 35 is extended or retracted, it can drive the side plate 27 and the cross beam 28 to move vertically, and the side plate 27 slides on the vertical rail 34. Of course, in actual use, other structures such as motors, telescopic cylinders, etc. can also be used to provide power for the vertical movement of the long rod 3.
[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A ship propeller blade anti-corrosion spraying equipment, characterized in that: It comprises a clamping structure and a simulation structure for fixing two impellers, the simulation structure is provided with a nozzle structure for spraying each propeller blade on the impeller, the simulation structure enables the nozzle structure to simulate the shape trajectory of the propeller blade surface on one impeller and spray the propeller blade surface on the other impeller; The simulation structure comprises a long rod, on which two turntables are rotatably arranged, each turntable is slidably interspersed with a sliding rod, and the sliding direction of the sliding rod is along the radial direction of the turntable, one end of the two sliding rods is fixed with a fixed seat, the other ends of the two sliding rods are connected by a sub-plate, and the two fixed seats are connected by a connecting rod; Among them, the nozzle structure is fixed on a fixed seat, and three top columns are arranged on the other fixed seat. The fixed seat is rotatably connected to the connecting rod, the sub-plate is rotatably connected to the sliding rod, the sub-plate, two sliding rods and the connecting rod form a parallelogram, the distance between the two turntables, the length of the sub-plate and the distance between the two fixed seats are all equal, and an elastic structure is arranged between the sub-plate and the long rod.
2. The anti-corrosion spraying equipment for propeller blades for ships according to claim 1 is characterized in that: The elastic structure includes two oblique rods rotatably mounted on the side walls of the long rod, the two oblique rods are in opposite directions, and the two oblique rods are connected by elastic sheets. A mounting seat is provided at the end of the oblique rod away from the long rod, and the mounting seat is mounted on the sub-plate.
3. The anti-corrosion spraying equipment for propeller blades for ships according to claim 2, characterized in that: The mounting seat is slidably connected to the auxiliary plate.
4. The anti-corrosion spraying equipment for propeller blades for ships according to claim 3, characterized in that: The connecting rod is in the shape of an arch.
5. The anti-corrosion spraying equipment for propeller blades for ships according to claim 4, characterized in that: The nozzle structure consists of a nozzle and a conical nozzle, the conical nozzle is connected and installed at the end of the nozzle, the shape of the conical nozzle is set to be conical, a conical head consistent with the shape of the conical nozzle is arranged inside the conical nozzle, a threaded column is fixed on the conical head, the threaded column is coaxial with the nozzle, the threaded column passes through the nozzle and is threadedly connected to each other, the threaded column is locked on the nozzle by a bolt, and a feed pipe is connected to the nozzle.
6. The anti-corrosion spraying equipment for propeller blades for ships according to claim 5, characterized in that: The clamping structure includes a base, a base column, two secondary columns and two threaded rings, wherein the base is used to support the base column thereon, the base column is rotatably mounted on the base laterally, the two secondary columns are coaxially fixed at both ends of the base column, a plurality of sliding edges for use with a plurality of keyways on the impeller are arranged on the outer wall of the secondary column, and threads for use with the threaded rings are arranged on the sliding edges; Among them, when the impeller is sleeved on the secondary column, the end face of the impeller contacts the end face of the base column, and the base column positions the impeller. A first motor is arranged on the base, and a transmission wheel is arranged at the output end of the first motor. A transmission ring is arranged on the transmission wheel, and the transmission ring is sleeved on the base column.
7. The anti-corrosion spraying equipment for propeller blades for ships according to claim 6, characterized in that: The spraying equipment also includes two side panels and a cross beam located between the two side panels. A moving platform is slidably arranged at the bottom of the cross beam. The moving platform is fixedly connected to the long rod through a vertical rod. A threaded rod is inserted into the moving platform. The threaded rod is threadedly connected to the moving platform. One end of the threaded rod is rotatably mounted on one side panel. A second motor is arranged at the other end of the threaded rod. The second motor is fixed to another side panel.
8. The anti-corrosion spraying equipment for propeller blades for ships according to claim 7, characterized in that: The spraying equipment also includes a lifting structure, which is used to drive the long rod to move in the vertical direction. The lifting structure includes a top plate and a vertical rail installed on each side plate. The side plate slides vertically on the vertical rail, and the vertical rail is fixed to the bottom of the top plate. The top plate and the crossbeam are connected by multiple cylinders.