An apparatus for spraying annular parts for aircraft engines

Abstract

The utility model relates to spraying equipment technical field discloses a kind of annular part spraying equipment for airplane engine, including spraying cabinet, the inside of spraying cabinet is sequentially provided with adjusting assembly, cleaning assembly and drying machine from left to right, the inside of spraying cabinet is opened with transport, and the inside of transport is equipped with conveyor belt, the inside of spraying cabinet is provided with spraying chamber, and the side wall of spraying chamber and spraying cabinet is equipped with filtering mechanism;The adjusting assembly includes two electric push rods, two are respectively fixedly connected in the outside of spraying cabinet two sides, and the output end of two electric push rods is fixedly connected with bow plate. In the utility model, by adding cleaning and drying module, improve coating adhesion and uniformity, improve spraying quality and service reliability. At the same time, the filtering mechanism in spraying chamber removes suspended particles and waste gas, keeps environment clean and stable, and replaces activated carbon filter plate through quick-release assembly, realizes green environmental protection discharge.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a spraying equipment for annular parts of aircraft engines. Background Technology

[0002] Aircraft engines are the core power system of aircraft, containing numerous complex and high-performance critical components, among which ring-shaped parts are a particularly important class. Common ring-shaped parts include turbine guide rings, combustion chamber housing rings, compressor housing rings, heat shield rings, and sealing rings. These parts are mostly located in the high-temperature and high-pressure regions of the engine and must withstand extreme operating environments, such as severe temperature cycling, corrosive airflow erosion, and particle impact. To improve the heat resistance, corrosion resistance, oxidation resistance, and friction performance of these parts, functional coating treatments are usually applied to their surfaces, such as thermal barrier coatings (TBCs), anti-corrosion coatings, and wear-resistant coatings, thereby extending their service life and improving the overall engine performance and operational reliability.

[0003] However, in existing spraying equipment, ring-shaped parts often lack a systematic cleaning and drying process before spraying. Some processes rely solely on manual wiping or natural air drying, resulting in residual oil, moisture, or dust on the part surface, affecting the adhesion and consistency of the coating. Simultaneously, most equipment lacks efficient dust removal and exhaust systems during the spraying process, leading to problems such as suspended atomized particles, turbulent airflow, or material waste within the spraying chamber. This results in uneven coating distribution, environmental pollution, and equipment wear and tear, hindering stable control of spraying quality and green, safe management of the production site.

[0004] To address the above problems, a ring-shaped part spraying device for aircraft engines is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coating equipment for annular parts of aircraft engines, which aims to solve the problems of poor coating adhesion, unstable coating quality and environmental pollution caused by the lack of effective cleaning and drying treatment before coating and poor dust removal and exhaust effect during the coating process in the existing coating equipment for annular parts of aircraft engines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spraying device for annular parts of an aircraft engine, comprising a spraying box, wherein an adjustment assembly, a cleaning assembly and a dryer are arranged sequentially from left to right inside the spraying box, a conveyor belt is installed inside the conveyor belt, a spraying chamber is provided inside the spraying box, and a filter mechanism is installed on the side wall of the spraying chamber and the spraying box;

[0007] The adjustment assembly includes two electric push rods, which are fixedly connected to the outer sides of the spray box respectively. The output ends of the two electric push rods are fixedly connected to bow plates. Limit blocks are fixedly connected to the top sides of the bow plates. The two bow plates are slidably connected inside the spray box and their movement directions are opposite. Multiple guide rollers are arranged side by side inside the bow plates.

[0008] As a further description of the above technical solution:

[0009] The bottom of the spray box is symmetrically provided with multiple support feet, and the top of the conveyor belt is fixedly connected with a U-shaped plate.

[0010] As a further description of the above technical solution:

[0011] The cleaning assembly includes two water tanks, which are respectively located on the outer sides of the spray box. Multiple pumps are mounted on the top of the water tanks, and water pipes are provided at the output ends of the pumps. Two mounting frames are symmetrically arranged inside the spray box, and multiple high-pressure nozzles are installed inside the water pipes.

[0012] As a further description of the above technical solution:

[0013] The mounting frame has multiple slots inside, and the water pipe is located inside the slots. The output ends of the multiple high-pressure nozzles all face the center of the spray box.

[0014] As a further description of the above technical solution:

[0015] The two dryers are respectively fixedly connected to the outside of the spray box on both sides, and the output end of the dryer is provided with an air outlet, which is embedded inside the side wall of the spray box.

[0016] As a further description of the above technical solution:

[0017] The filtration mechanism includes a mounting cylinder, one end of which is disposed inside the side wall of the spray box and communicates with the spray chamber. An exhaust fan is installed on the side of the mounting cylinder away from the spray box. An inner mounting groove is formed on the side wall of the mounting cylinder, and multiple snap-fit ​​components are arranged around the inner mounting groove. A baffle is sleeved on the outer side of the inner mounting groove, and a retaining ring is provided on one side of the baffle. A rotating cylinder is rotatably connected to the outer side of the baffle.

[0018] As a further description of the above technical solution:

[0019] The snap-fit ​​assembly includes a limiting plate, which is slidably connected inside the mounting groove. Each inner side of the limiting plate is fixedly connected to an insert block, which is slidably connected inside the side wall of the mounting cylinder. A pull rope is fixedly connected to the center of the outer side of the limiting plate, and a spring is sleeved on the outer side of the pull rope. The other end of the pull rope is fixedly connected to the inner wall of the rotating cylinder.

[0020] As a further description of the above technical solution:

[0021] The top of the spring is fixedly connected to the inner side of the retaining ring, and the bottom of the spring is fixedly connected to the outer side of the limiting plate.

[0022] As a further description of the above technical solution:

[0023] An activated carbon filter plate is installed inside the mounting cylinder, and multiple inserts are inserted into the activated carbon filter plate.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, by adding a cleaning and drying module before spraying, dust, oil and moisture on the surface of the ring-shaped part can be effectively removed, significantly improving the adhesion and uniformity of the coating, avoiding coating peeling, blistering or defects, thereby improving the spraying quality and the service reliability of the part.

[0026] 2. In this invention, the dust removal and exhaust system installed in the spraying chamber can remove suspended particles and exhaust pollutants in the chamber in real time, maintaining a clean and stable spraying environment, effectively avoiding poor quality caused by secondary contamination of the coating or paint deposition, while improving operational safety and equipment durability. Furthermore, the use of quick-release components to install the activated carbon filter plate facilitates subsequent replacement, enabling green and environmentally friendly emissions and meeting industrial environmental standards. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a spraying device for annular parts of an aircraft engine proposed in this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of the guide roller of a spraying device for annular parts of an aircraft engine proposed in this utility model.

[0029] Figure 3 This is a schematic diagram of the high-pressure nozzle of a coating device for annular parts of an aircraft engine proposed in this utility model.

[0030] Figure 4 This is a schematic diagram of the structure of the dryer for a coating equipment for annular parts of an aircraft engine proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the exhaust fan structure of a spraying device for annular parts of an aircraft engine proposed in this utility model.

[0032] Figure 6 This is a schematic diagram of the structure of the baffle of a spraying device for annular parts of an aircraft engine proposed in this utility model;

[0033] Figure 7 for Figure 6 A magnified view of A in the middle.

[0034] Legend:

[0035] 1. Spraying box; 11. Support feet; 2. Cleaning assembly; 201. Water tank; 202. Pump; 203. Water pipe; 204. Mounting frame; 205. High-pressure nozzle; 3. Adjustment assembly; 301. Electric push rod; 302. Bow plate; 303. Limiting block; 304. Guide roller; 4. Dryer; 41. Air outlet; 5. Filtering mechanism; 51. Mounting cylinder; 511. Mounting inner groove; 52. Rotary cylinder; 53. Exhaust fan; 54. Baffle cylinder; 541. Baffle ring; 55. Snap-fit ​​assembly; 551. Limiting plate; 552. Insert block; 553. Pull rope; 554. Spring; 56. Activated carbon filter plate; 6. Conveyor belt; 7. Placement U-shaped plate. Detailed Implementation

[0036] 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.

[0037] Reference Figure 1 - Figure 2This utility model provides an embodiment of a coating equipment for annular parts used in aircraft engines, comprising a coating box 1. Multiple support legs 11 are symmetrically arranged at the bottom of the coating box 1 to support the overall structure of the equipment and enhance its stability during operation. The internal structure of the coating box 1, from left to right, includes an adjustment assembly 3, a cleaning assembly 2, and a dryer 4, arranged in the order of the process flow to sequentially complete part positioning, surface cleaning, and drying. The interior of the coating box 1 has a longitudinal conveying channel for the automatic transport of the annular parts. A conveyor belt 6 is installed inside the conveyor belt to achieve continuous transmission and stable transport. A U-shaped plate 7 is fixedly connected to the top of the conveyor belt 6 to support the annular structural parts, ensuring their positioning accuracy during transport and coating, and preventing workpiece shaking or displacement. The central area inside the spray box 1 is equipped with a closed spray chamber for centralized spraying operations. The spray chamber is relatively enclosed and has a good operating environment control effect. In order to achieve effective emission and purification of particulate matter and exhaust gas during the spraying process, a filter mechanism 5 is provided on the side wall of the spray chamber and the spray box 1. The filter mechanism 5 can treat suspended particles and odors during the spraying process, ensuring cleanliness inside the equipment and environmentally friendly production.

[0038] Reference Figure 2 The adjustment assembly 3 includes two electric push rods 301, which are fixedly connected to the outer sides of the spray box 1. Each of the two electric push rods 301 has a fixedly connected bow plate 302 at its output end. The bow plate 302 is an adjustable load-bearing component, capable of smoothly sliding towards or away from each other under the drive of the electric push rods 301. Limiting blocks 303 are fixedly connected to both sides of the top of the bow plate 302, effectively preventing the bow plate 302 from deviating from its predetermined trajectory during movement. Both bow plates 302 are slidably connected inside the spray box 1, and their movement directions are opposite. Multiple guide rollers 304 are arranged side-by-side inside the bow plate 302. The guide rollers 304 ensure that the annular part moves along a precise trajectory during spraying, avoiding uneven spraying due to movement errors. Furthermore, the distance between the two sides of the annular part and the guide rollers 304 is adjusted by the electric push rods 301, further improving the accuracy and efficiency of the spraying operation.

[0039] Reference Figure 3The cleaning component 2 includes two water tanks 201, which are respectively located on the outer sides of the spray box 1 to provide the water source required for cleaning. Multiple pumps 202 are mounted on the top of each water tank 201, and the pumps 202 are used to transport water from the water tank 201 to the interior of the spray box 1 via water pipes 203. Two mounting frames 204 are symmetrically arranged inside the spray box 1. Multiple slots are provided inside the mounting frames 204 to effectively accommodate the water pipes 203, making their position more fixed and neat, and preventing instability caused by the water pipes 203 shaking. The output ends of multiple high-pressure nozzles 205 are all facing the interior center of the spray box 1, enabling quick and effective cleaning of dust, oil, and other impurities from the surface of parts. A drain outlet is provided at the bottom of the spray box 1.

[0040] Reference Figure 4 Two dryers 4 are fixedly connected to the outside of the spray box 1 on both sides, and are used to efficiently dry the parts after cleaning. Each dryer 4 has an air outlet 41 at its output end, which is used to send the hot air processed by the dryer 4 into the spray box 1 to ensure that the cleaned parts can be dried quickly. With this design, the air outlet 41 can directly deliver hot air to the surface of the parts inside the spray box 1, accelerate the evaporation of moisture on the surface of the parts, and guide the flow of hot air through the air duct system to ensure that the drying efficiency inside the entire spray box 1 is maximized.

[0041] Reference Figure 4 - Figure 7 The filtration mechanism 5 includes a mounting cylinder 51, one end of which is disposed inside the side wall of the spray box 1 and communicates with the spray chamber. The mounting cylinder 51 is used to draw in and treat exhaust gases, particles, and impurities generated during the spraying process. An exhaust fan 53 is installed on the side of the mounting cylinder 51 away from the spray box 1. The exhaust fan 53 draws in air and discharges it through the filtration system, ensuring stable air quality within the spray chamber. An inner mounting groove 511 is formed in the side wall of the mounting cylinder 51, with multiple snap-fit ​​components 55 distributed around it. The snap-fit ​​components 55 are connected to an activated carbon filter plate 56 via inserts 552. The activated carbon filter plate 56 effectively adsorbs harmful gases from the air, ensuring that harmful substances generated during the spraying process are thoroughly removed. The baffle 54 is sleeved on the outside of the mounting inner groove 511 to protect the internal components. At the same time, a retaining ring 541 is provided on one side of the baffle 54. The design of the retaining ring 541 can prevent the various parts of the snap-fit ​​component 55 from shifting or loosening during use. A rotating cylinder 52 is rotatably connected to the outside of the baffle 54.

[0042] The snap-fit ​​assembly 55 includes a limiting plate 551, which is slidably connected inside the mounting inner groove 511 to fix the position of the activated carbon filter plate 56. An insert block 552 is fixedly connected to the inner side of the limiting plate 551 and is slidably connected inside the side wall of the mounting cylinder 51. This slidable connection allows the insert block 552 to flexibly adjust its connection with the activated carbon filter plate 56, thereby effectively enabling rapid replacement and maintenance of the activated carbon filter plate 56. A pull rope 553 is fixedly connected to the outer center of the limiting plate 551. The other end of the pull rope (553) is fixedly connected to the inner wall of the rotating drum (52). A spring 554 is sleeved on the outer side of the pull rope 553. The top of the spring 554 is fixedly connected to the inner side of the retaining ring 541, and the bottom is fixedly connected to the outer side of the limiting plate 551. By rotating the rotating drum 52, the pull rope 553 can be pulled, thereby causing the insertion block 552 at the bottom of the limiting plate 551 to slide out from the activated carbon filter plate 56. During this process, the spring 554 is compressed, which can quickly replace the activated carbon filter plate 56. After the replacement is completed and the new filter plate is installed, the spring 554 is released and the insertion block 552 is reinserted into the preset hole in the activated carbon filter plate 56 under the action of the spring 554, completing the quick installation.

[0043] Working Principle: After the equipment is started, the annular part first enters the spray box 1 via the conveyor belt 6, supported by the U-shaped plate 7, and moves forward along the longitudinal transport channel. After passing through the first process area, the two electric push rods 301 of the adjustment component 3 are activated simultaneously, causing the bow plates 302 on both sides to slide in opposite directions, so that the guide rollers 304 roll on both sides of the part, and the part completes the position adjustment under the guidance of multiple guide rollers 304. Subsequently, the annular part enters the second process area, where water is driven by two water tanks 201 through pumps 202 and transported to the mounting frame 204 through water pipes 203. Multiple high-pressure nozzles 205 spray water at the center of the inside of the spray box 1 to clean the part, and the cleaning water is discharged through the drain outlet at the bottom of the spray box 1. After cleaning, the part continues to move along the conveyor belt 6 into the third process area, where two dryers 4 simultaneously deliver hot air into the spray box 1 through the air outlet 41 to dry the surface of the cleaned part. After drying, the parts are moved to the central spraying chamber for spraying. During spraying, the exhaust gas and suspended particles generated are drawn into the mounting cylinder 51, which is connected to the side wall of the spraying chamber. The exhaust fan 53 drives the airflow into the mounting cylinder 51, where it is filtered and purified by the activated carbon filter plate 56, which is fixed in the mounting inner groove 511 by the snap-fit ​​assembly 55. When the filter plate needs to be replaced, the rotating drum 52 can be rotated, and the pull rope 553 can be pulled to move the limiting plate 551, causing the insert block 552 to slide out of the connection hole of the activated carbon filter plate 56, thus realizing the quick disassembly and replacement of the filter plate. After the rotating drum 52 is released, the insert block 552 automatically resets and re-inserts into the filter plate under the action of the spring 554, completing the installation of the new filter plate.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating equipment for annular parts used in aircraft engines, comprising a coating box (1), characterized in that: The spray box (1) is provided with an adjustment component (3), a cleaning component (2) and a dryer (4) from left to right. The spray box (1) is provided with a conveyor belt (6) inside the conveyor belt. The spray box (1) is provided with a spraying chamber inside the spraying chamber and a filter mechanism (5) is installed on the side wall of the spray box (1). The adjustment assembly (3) includes two electric push rods (301), which are fixedly connected to the outer sides of the spray box (1). The output ends of the two electric push rods (301) are fixedly connected to bow plates (302). Limiting blocks (303) are fixedly connected to the top sides of the bow plates (302). The two bow plates (302) are slidably connected inside the spray box (1) and their movement directions are opposite. Multiple guide rollers (304) are arranged side by side inside the bow plates (302).

2. The coating equipment for annular parts of an aircraft engine according to claim 1, characterized in that: The bottom of the spray box (1) is symmetrically provided with multiple support feet (11), and the top of the conveyor belt (6) is fixedly connected with a U-shaped plate (7).

3. The coating equipment for annular parts of an aircraft engine according to claim 1, characterized in that: The cleaning component (2) includes two water tanks (201), and the two water tanks (201) are respectively arranged on the outer sides of the spray box (1). Multiple pumps (202) are mounted on the top of the water tanks (201), and water pipes (203) are provided at the output end of the pumps (202). Two mounting frames (204) are symmetrically arranged inside the spray box (1), and multiple high-pressure nozzles (205) are installed inside the water pipes (203).

4. The coating equipment for annular parts of an aircraft engine according to claim 3, characterized in that: The mounting frame (204) has multiple slots inside, and the water pipe (203) is located inside the slots. The output ends of the multiple high-pressure nozzles (205) are all facing the center of the spray box (1).

5. The coating equipment for annular parts of an aircraft engine according to claim 1, characterized in that: The two dryers (4) are respectively fixedly connected to the outside of the spray box (1), and the output end of the dryer (4) is provided with an air outlet (41), which is embedded in the side wall of the spray box (1).

6. The coating equipment for annular parts of an aircraft engine according to claim 1, characterized in that: The filter mechanism (5) includes a mounting cylinder (51), one end of which is located inside the side wall of the spray box (1) and is connected to the spray chamber. An exhaust fan (53) is installed on the side of the mounting cylinder (51) away from the spray box (1). An inner mounting groove (511) is provided on the side wall of the mounting cylinder (51), and multiple snap-fit ​​components (55) are arranged around the inner mounting groove (511). A baffle (54) is sleeved on the outer side of the inner mounting groove (511), and a retaining ring (541) is provided on one side of the baffle (54). A rotating cylinder (52) is rotatably connected to the outer side of the baffle (54).

7. The coating equipment for annular parts of an aircraft engine according to claim 6, characterized in that: The snap-fit ​​assembly (55) includes a limiting plate (551), which is slidably connected to the inside of the mounting inner groove (511). The inner side of the limiting plate (551) is fixedly connected to a plug (552), and the plug (552) is slidably connected to the inside of the side wall of the mounting cylinder (51). A pull rope (553) is fixedly connected to the center of the outer side of the limiting plate (551), and a spring (554) is sleeved on the outer side of the pull rope (553). The other end of the pull rope (553) is fixedly connected to the inner wall of the rotating cylinder (52).

8. The coating equipment for annular parts of an aircraft engine according to claim 7, characterized in that: The top of the spring (554) is fixedly connected to the inner side of the retaining ring (541), and the bottom of the spring (554) is fixedly connected to the outer side of the limiting plate (551).

9. The coating equipment for annular parts of an aircraft engine according to claim 7, characterized in that: An activated carbon filter plate (56) is installed inside the mounting cylinder (51), and a plurality of the inserts (552) are inserted into the interior of the activated carbon filter plate (56).

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