Surface treatment device for anti-fatigue high-strength propeller

Abstract

The utility model relates to propeller surface treatment equipment technical field, concretely to the surface treatment device of fatigue -resistant high -strength propeller, including work table, the top of work table is provided with the avoidance groove, be equipped with rotary clamping mechanism and slide rail on work table, be equipped with electric sliding block on slide rail, one side of electric sliding block is equipped with support frame, one side of work table is equipped with support plate, the bottom of support frame is equipped with pulley assembly, pulley assembly abuts on support plate, the top of support frame is equipped with elevating gear, the output of elevating gear is equipped with lifting plate, this structure can start the spiral heating tube and fan in the air pipe after spraying is completed, and the real -time drying of coating is carried out to the output hot -air, can start rotary clamping mechanism and drive propeller slowly rotate in the process, cooperate with the transverse movement of electric sliding block and the height adjustment of elevating gear, realize the even spraying and drying of propeller whole surface.

Description

Technical Field

[0001] This utility model relates to the technical field of propeller surface treatment equipment, specifically a surface treatment device for fatigue-resistant high-strength propellers. Background Technology

[0002] As is well known, propellers are core power components in fields such as shipbuilding and aerospace, and their fatigue resistance and strength directly determine the operational safety and service life of the equipment. To improve the fatigue resistance of propellers, surface treatments such as anti-fatigue coatings are necessary. However, existing surface treatment devices have the following technical shortcomings: Traditional devices often have a flat worktable, which can obstruct the propeller blades after placement, making it impossible to directly treat some surfaces. This requires frequent adjustments to the propeller's attitude, increasing the number of steps and causing positioning deviations due to repeated clamping, thus affecting coating uniformity. Furthermore, the clamping mechanisms are often designed with fixed dimensions, making it difficult to adapt to propellers of different diameters and thicknesses, resulting in poor versatility. Excessive clamping can also damage the propeller surface and compromise its original structural strength. The existing devices mostly rely on slide rails for lateral movement components and lack auxiliary support structures. During movement, the support frame is prone to tilting due to its own weight, causing the spray gun and drying components to shift. The lifting mechanism lacks a guide limit design, which makes it easy to shake during lifting and lowering. It is impossible to accurately control the spraying distance and drying distance, resulting in uneven coating thickness (often exceeding 10%), local overheating or incomplete drying, which affects the adhesion performance and protective effect of the fatigue-resistant coating. Most devices separate spraying and drying into separate processes. After spraying, the propeller needs to be transferred to the drying equipment. During the transfer process, the coating is easily contaminated or bumped. Moreover, the drying equipment is mostly a whole-area heating system, which cannot dry the sprayed area in real time. This results in low coating curing efficiency (curing time often exceeds 2 hours) and the coating is prone to peeling off due to untimely curing. This cannot meet the high-efficiency and high-quality surface treatment requirements of high-strength propellers. The aforementioned defects result in limited improvement in the fatigue life of propellers treated by existing devices, as well as low processing efficiency and complex operation, making it difficult to meet the needs of large-scale production of fatigue-resistant, high-strength propellers. Therefore, there is an urgent need for a surface treatment device that can solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a surface treatment device for fatigue-resistant, high-strength propellers.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a surface treatment device for a fatigue-resistant high-strength propeller, comprising a worktable, a clearance groove at the top of the worktable, a rotating clamping mechanism and a slide rail on the worktable, an electric slider on the slide rail, a support frame on one side of the electric slider, a support plate on one side of the worktable, a pulley assembly at the bottom of the support frame, the pulley assembly abutting against the support plate, a lifting device at the top of the support frame, a lifting plate at the output end of the lifting device, a guide mechanism between the lifting plate and the electric slider, a spray gun and an air duct at the top of the lifting plate, and a spiral heating tube and a fan inside the air duct.

[0005] Furthermore, the rotating clamping mechanism includes a telescopic device and a drive motor. Both the telescopic device and the drive motor are fixedly connected to the worktable via a fixed frame. The output end of the telescopic device is provided with a bearing. Both the bearing and the output end of the drive motor are provided with clamping components. The outer ring of the bearing is fixedly connected to the clamping components to allow the clamping components to rotate synchronously with the propeller.

[0006] Furthermore, the guiding mechanism includes a guide hole and a guide post. The guide hole is formed on the lifting plate, and the guide post is installed at the top of the electric slider and passes through the guide hole.

[0007] Furthermore, an air duct is provided at one end of the air duct.

[0008] Furthermore, both the telescopic device and the lifting device are electric push rods.

[0009] Furthermore, the drive motor is a servo motor.

[0010] Furthermore, limit blocks are provided at both ends of the slide rail.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a surface treatment device for fatigue-resistant, high-strength propellers, which has the following beneficial effects: The surface treatment device for this fatigue-resistant high-strength propeller features an electric slider that drives the support frame to move laterally. At the same time, the pulley assembly at the bottom of the support frame rolls on the support plate, forming auxiliary support and effectively counteracting the tilting force generated by the weight of the support frame. The lifting device works in conjunction with the guide mechanism to restrict the lifting plate to move only in the vertical direction, avoiding swaying during lifting. The control accuracy of the spraying distance and drying distance is improved to ±0.5mm, the coating thickness error can be stably controlled within 5%, and the drying temperature uniformity error is ≤3℃, ensuring the uniformity and curing quality of the fatigue-resistant coating. The lifting plate integrates a spray gun and air duct, allowing for immediate drying after spraying without the need to transfer the propeller, thus shortening the processing time. Combined with the uniform heating of the spiral heating tube and the stable air delivery of the fan, the coating curing efficiency is improved, and the drying process is free from coating contamination and impact risks. The coating adhesion strength is increased by more than 30% (tensile strength ≥50MPa), and the propeller fatigue life is improved, meeting the high strength requirements for fatigue resistance. Attached Figure Description

[0012] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second-view structure of the present invention; Figure 3 This is a schematic diagram of the third-view structure of this utility model; Figure 4 This is a frontal half-sectional view of the structure of this utility model.

[0013] In the diagram: 1. Workbench; 2. Clearance groove; 3. Slide rail; 4. Electric slider; 5. Support frame; 6. Support plate; 7. Pulley assembly; 8. Lifting device; 9. Lifting plate; 10. Spray gun; 11. Air duct; 12. Spiral heating tube; 13. Fan; 14. Telescopic device; 15. Drive motor; 16. Fixing frame; 17. Bearing; 18. Clamping component; 19. Guide hole; 20. Guide column; 21. Air duct; 22. Limit block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4This utility model relates to a surface treatment device for fatigue-resistant, high-strength propellers, comprising a worktable 1, a clearance groove 2 at the top of the worktable 1, a rotating clamping mechanism and a slide rail 3 on the worktable 1, an electric slider 4 on the slide rail 3, a support frame 5 on one side of the electric slider 4, a support plate 6 on one side of the worktable 1, a pulley assembly 7 at the bottom of the support frame 5, the pulley assembly 7 abutting against the support plate 6, and a lifting device 8 at the top of the support frame 5, the output end of the lifting device 8 having a lifting mechanism. A lowering plate 9 is provided, and a guide mechanism is provided between the lifting plate 9 and the electric slider 4. The top of the lifting plate 9 is provided with a spray gun 10 and an air duct 11. The air duct 11 is provided with a spiral heating tube 12 and a fan 13. In this embodiment, the operator places the high-strength propeller to be treated above the clearance groove 2 of the workbench 1. The clearance groove 2 can avoid the propeller blades and prevent the workbench 1 from blocking the treatment area. The rotating clamping mechanism is activated to fix the propeller above the workbench 1 through its clamping function, ensuring that the propeller is stable and the surface to be treated is exposed. According to the lateral position of the area to be treated of the propeller, the electric slider 4 on the slide rail 3 is activated: the electric slider 4 slides along the slide rail 3, driving the support frame 5 connected to it to move laterally in sync; at this time, the pulley assembly 7 at the bottom of the support frame 5 rolls on the support plate 6 to reduce the frictional resistance when the support frame 5 moves laterally, and prevent the support frame 5 from tilting, until the spray gun 10 and the air duct 11 move to a lateral position aligned with the area to be treated. The output end of the lifting device 8 drives the lifting plate 9 to move up and down. At the same time, the guide mechanism between the lifting plate 9 and the electric slider 4 restricts the offset direction of the lifting plate 9, ensuring that the lifting plate 9 moves smoothly only in the vertical direction until the spray gun 10 and the air duct 11 are adjusted to match the height of the area to be treated, ensuring that the spraying distance and drying distance meet the process requirements. The spray gun 10 is started to spray an anti-fatigue coating, such as an epoxy resin-based coating or a metal ceramic coating, onto the surface of the propeller to be treated. After the spraying is completed, the spiral heating tube 12 inside the air duct 11 is energized to heat up and the fan 13 drives the airflow. The airflow is heated by the spiral heating tube 12 to form hot air, which is blown onto the freshly sprayed coating surface through the air duct 11 to achieve rapid drying of the coating and improve the coating adhesion strength. During the process, the rotating clamping mechanism can be started to drive the propeller to rotate slowly. With the lateral movement of the electric slider 4 and the height adjustment of the lifting device 8, uniform spraying and drying of the entire surface of the propeller can be achieved. After the propeller's entire surface is treated, turn off the spray gun 10, spiral heating tube 12, and fan 13. Control the lifting device 8 to drive the lifting plate 9 to reset and descend to the initial height. The electric slider 4 drives the support frame 5 to reset and return to the initial position along the slide rail 3. Rotate the clamping mechanism to release the propeller. The operator removes the treated propeller, completing one work cycle. In this design, the rotating clamping mechanism includes a telescopic device 14 and a drive motor 15. Both the telescopic device 14 and the drive motor 15 are fixedly connected to the worktable 1 via a fixing frame 16. The output end of the telescopic device 14 is equipped with a bearing 17. Both the bearing 17 and the output end of the drive motor 15 are equipped with clamping elements 18. The outer ring of the bearing 17 is fixedly connected to the clamping elements 18 to allow the clamping elements 18 to rotate synchronously with the propeller. The fixing frame 16 rigidly connects the telescopic device 14, the drive motor 15, and the worktable 1 via mechanical connections such as bolts, ensuring stable positioning and preventing vibration during operation. The telescopic device 14 moves the clamping member 18 connected to it through the telescopic action of the output end, thereby clamping and releasing the propeller to adapt to propellers of different diameters. The drive motor 15 drives the clamping member 18 connected to it to rotate through the rotational power of the output end, thereby driving the propeller to rotate synchronously. The clamping member 18 at the output end of the telescopic device 14 is connected to the telescopic device 14 through the bearing 17 instead of being rigidly fixed. When the drive motor 15 drives the propeller to rotate, the clamping member 18 at this end can rotate freely with the propeller to avoid the propeller being unable to rotate due to the rigid fixing of the clamping members 18 at both ends, or the propeller being deformed due to excessive rotational resistance. The clamping distance can be adjusted by the telescopic device 14 to adapt to high-strength, fatigue-resistant propellers of different diameters, thus expanding the applicability of the device; the fixed frame 16 prevents the telescopic device 14 and the drive motor 15 from shifting, and the bearing 17 reduces rotational resistance, ensuring uniform propeller rotation and preventing uneven coating caused by rotational shaking; the bearing 17 cooperates with the drive motor 15 to prevent mechanical damage to the propeller caused by rigid clamping rotation, ensuring that the original fatigue resistance of the propeller is not destroyed. In this design, the guiding mechanism includes a guide hole 19 and a guide post 20. The guide hole 19 is formed on the lifting plate 9, and the guide post 20 is installed at the top of the electric slider 4. The guide post 20 passes through the guide hole 19. When the lifting plate 9 rises and falls, the guide hole 19 slides along the inner wall of the guide post 20, restricting the movement trajectory of the lifting plate 9 to only move up and down along the axial direction of the guide post 20. This prevents the lifting plate 9 from shifting laterally due to uneven force or vibration of the lifting device 8. It also prevents the lifting plate 9 from shifting, which could cause the spray gun 10 and air duct 11 to shake, ensuring that the spraying distance and drying distance always meet the process requirements.

[0016] In this design, one end of the duct 11 is provided with an air intake hopper 21, which expands the air intake area of ​​the duct 11 and reduces the resistance when the airflow enters the duct 11.

[0017] In this solution, both the telescopic device 14 and the lifting device 8 are electric push rods. Electric push rods have the characteristics of high control precision, fast response speed and stable operation. They can accurately control the clamping distance of the telescopic device 14 to adapt to different propeller diameters and the lifting height of the lifting device 8 to adapt to different propeller thicknesses, thus avoiding processing defects caused by adjustment errors.

[0018] In this solution, the drive motor 15 is a servo motor. The servo motor has the characteristics of precise speed control and stable torque, which avoids the propeller rotating suddenly fast and slow, and ensures that the spray gun 10 and the air duct 11 treat the propeller surface with consistent intensity.

[0019] In this scheme, limit blocks 22 are provided at both ends of the slide rail 3. The limit blocks 22 physically block the electric slider 4 from moving to the extreme position along the slide rail 3, so as to prevent the electric slider 4 from exceeding the range of the slide rail 3 due to control system failure (such as stroke sensor failure) or operation error (such as parameter setting error).

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for a fatigue-resistant, high-strength propeller, comprising a worktable (1), characterized in that, The top of the workbench (1) is provided with a clearance groove (2). The workbench (1) is provided with a rotating clamping mechanism and a slide rail (3). The slide rail (3) is provided with an electric slider (4). The electric slider (4) is provided with a support frame (5) on one side. The workbench (1) is provided with a support plate (6) on one side. The bottom of the support frame (5) is provided with a pulley assembly (7). The pulley assembly (7) abuts against the support plate (6). The top of the support frame (5) is provided with a lifting device (8). The output end of the lifting device (8) is provided with a lifting plate (9). The lifting plate (9) and the electric slider (4) are provided with a guide mechanism. The top of the lifting plate (9) is provided with a spray gun (10) and an air duct (11). The air duct (11) is provided with a spiral heating tube (12) and a fan (13).

2. The surface treatment device for a fatigue-resistant high-strength propeller according to claim 1, characterized in that, The rotating clamping mechanism includes a telescopic device (14) and a drive motor (15). The telescopic device (14) and the drive motor (15) are both fixedly connected to the worktable (1) through a fixed frame (16). The output end of the telescopic device (14) is provided with a bearing (17). The output ends of the bearing (17) and the drive motor (15) are both provided with clamping parts (18). The outer ring of the bearing (17) is fixedly connected to the clamping parts (18) so as to allow the clamping parts (18) to rotate synchronously with the propeller.

3. The surface treatment device for a fatigue-resistant high-strength propeller according to claim 1, characterized in that, The guiding mechanism includes a guide hole (19) and a guide post (20). The guide hole (19) is opened on the lifting plate (9), and the guide post (20) is installed on the top of the electric slider (4). The guide post (20) passes through the guide hole (19).

4. The surface treatment device for a fatigue-resistant high-strength propeller according to claim 1, characterized in that, One end of the air duct (11) is provided with an air intake hopper (21).

5. The surface treatment device for a fatigue-resistant high-strength propeller according to claim 2, characterized in that, Both the telescopic device (14) and the lifting device (8) are electric push rods.

6. The surface treatment device for a fatigue-resistant high-strength propeller according to claim 2, characterized in that, The drive motor (15) is a servo motor.

7. The surface treatment device for a fatigue-resistant high-strength propeller according to claim 1, characterized in that, The slide rail (3) is provided with limit blocks (22) at both ends.

Images