Efficient casting cleaning device

Abstract

The utility model discloses an efficient cleaning device for castings, belongs to the technical field of casting cleaning, and aims to solve the technical problem that in the prior art, the health of operators and the environment are harmed in the sand blasting cleaning process of the castings. The efficient casting cleaning device comprises a base, a tray is arranged on the base, a frame plate is fixed to the top of the base, a sand blasting gun is arranged at the bottom of the frame plate, and a driving mechanism used for driving the sand blasting gun to move is arranged on the frame plate; a shell cover is arranged between the two sides of the frame plate and the upper surface of the base, a closed space is formed among the frame plate, the shell cover and the base, a door body is arranged on one side wall of the shell cover, and a sand storage barrel and a connector are arranged at the top of the shell cover. According to the efficient cleaning device for the castings, the castings can be subjected to uniform sand blasting cleaning treatment, the whole casting cleaning process is conducted in a closed space, and the situation that sprayed materials splash everywhere to cause harm to the health of operators and the environment can be effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of casting cleaning technology, and specifically relates to a high-efficiency casting cleaning device. Background Technology

[0002] As the core equipment of a hydropower station, the performance and reliability of the hydro-generator directly affect the power generation efficiency and operational safety of the station. Key components of the hydro-generator, such as the runner, guide vanes, and bearings, are typically manufactured using casting processes. During the casting process, due to factors such as residual release agent on the mold surface, oxidation of the molten metal upon contact with air, and the introduction of impurities from the gating system, contaminants such as oil, rust, sand, and oxide scale adhere to the surface of the casting. If these contaminants are not thoroughly removed, they will not only affect the subsequent machining accuracy of the casting, leading to increased dimensional deviations and surface roughness, but will also adversely affect the sealing performance during assembly, causing leakage and other problems, thereby reducing the operating efficiency and service life of the hydro-generator. For example, the presence of oil and oxide scale on the runner surface may alter the hydrodynamic characteristics, reducing the turbine's hydraulic efficiency; contaminants on the bearing surface may cause poor lubrication, accelerate wear, and even lead to equipment failure.

[0003] Currently, the main method for cleaning castings of hydro-generators is sandblasting, which uses high-pressure airflow or water flow to spray sand particles onto the surface of the casting to remove contaminants. However, the sandblasting process causes serious pollution by splashing material everywhere, which can harm the health of operators and the environment. Therefore, this application proposes a high-efficiency casting cleaning device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-efficiency cleaning device for castings, which aims to solve the technical problem that the sandblasting cleaning process of castings under the existing technology will cause harm to the health of operators and the environment.

[0005] Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a high-efficiency cleaning device for castings, including a base, a tray on the base, a frame plate fixed on the top of the base, a sandblasting gun at the bottom of the frame plate, and a drive mechanism for driving the sandblasting gun to move on the frame plate; a shell is provided between the two sides of the frame plate and the upper surface of the base, and the frame plate, the shell, and the base form a closed space, and a door is provided on one side wall of the shell.

[0007] Preferably, the top of the housing is provided with a sand storage tank and a connector, and the sand storage tank and the connector are connected to the sandblasting gun by a hose.

[0008] Preferably, the driving mechanism includes a lead screw that is horizontally rotatably mounted on the top of the frame plate and a slider threaded onto the lead screw. The sandblasting gun is mounted on the bottom of the slider, the slider slides against the top wall of the frame plate, and a first motor for driving the lead screw to rotate is mounted on the side wall of the frame plate.

[0009] Preferably, the base is configured as a frame structure, the bottom of the base is covered with a flow guide cover, and the bottom end of the flow guide cover is connected to a bottom shell.

[0010] Preferably, a mounting plate is horizontally fixed inside the base, the tray is rotatably mounted on the mounting plate, a second motor for driving the tray to rotate is mounted at the bottom of the mounting plate, and a waterproof cover is provided on the second motor.

[0011] Preferably, the bottom wall of the tray is hollowed out.

[0012] Preferably, a filter basket is movably embedded inside the bottom shell.

[0013] Preferably, the base is provided with a support frame at the bottom, the bottom end of the bottom shell is bolted to a base plate, the base plate is provided with a drain pipe, and the drain pipe communicates with the inside of the bottom shell.

[0014] Beneficial effects

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

[0016] This invention utilizes a sandblasting gun and a tray. The water turbine generator casting is placed on the tray, with the connector connected to a high-pressure water source. The sand storage tank is filled with abrasive material (copper ore sand, quartz sand, iron sand, sea sand, corundum, etc.). High-pressure water is used as the power source, working in conjunction with the sandblasting gun to form a high-speed jet stream, which propels the abrasive material onto the surface of the casting on the tray at high speed, thus achieving the cleaning and decontamination of the casting surface. During the sandblasting cleaning process, a second motor can drive the casting to rotate to receive the sandblasting cleaning, and the drive mechanism can drive the sandblasting gun to move horizontally, adjusting the sandblasting cleaning position on the casting to achieve uniform sandblasting cleaning of the casting.

[0017] This invention, through the design of the housing, creates a closed space between the frame, housing, and base during the sandblasting cleaning of castings. The entire cleaning process takes place within this closed space, effectively preventing the sprayed material from splashing everywhere and posing a health hazard to operators and the environment. Furthermore, the design of the guide hood and bottom shell allows the sprayed material and water to fall through the perforated bottom wall of the tray into the guide hood, and then into the bottom shell. The mixture of sprayed material and water is filtered through a filter basket, with the sprayed material retained in the basket for collection, while wastewater is centrally discharged through a drain pipe. This facilitates the recycling of water and sprayed material, reducing wastewater discharge and energy consumption, aligning with energy conservation and environmental protection principles. Attached image description:

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model after the shell is removed;

[0021] Figure 3 This is a schematic diagram of the structure of the middle frame plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the slider structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the bottom shell and the flow guide in this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the tray in this utility model.

[0025] The markings in the attached diagram are as follows: 1. Base; 2. Frame plate; 3. Shell; 4. Door; 5. Support frame; 6. Sand storage tank; 7. Connector; 8. Bottom shell; 9. Flow guide; 10. Mounting plate; 11. Tray; 12. Sandblasting gun; 13. Slider; 14. First motor; 15. Lead screw; 16. Filter basket; 17. Drain pipe; 18. Base plate; 19. Second motor. Detailed Implementation

[0026] 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.

[0027] This embodiment provides a high-efficiency cleaning device for castings, the structural diagram of which is shown below. Figures 1-6As shown, the system includes a base 1, a tray 11 on the base 1, a frame plate 2 fixed to the top of the base 1, a sandblasting gun 12 at the bottom of the frame plate 2, and a drive mechanism on the frame plate 2 for moving the sandblasting gun 12. A hydro-generator casting is placed on the tray 11, and the sandblasting gun 12 is used to sandblast the casting, spraying the abrasive at high speed onto the surface of the casting on the tray 11, thus cleaning and removing contaminants from the casting surface. In this embodiment, a housing 3 is provided between the two sides of the frame plate 2 and the upper surface of the base 1, forming a closed space between the frame plate 2, the housing 3, and the base 1. A door 4 is provided on one side wall of the housing 3. During the sandblasting cleaning process, the door 4 is closed, and the frame plate 2, the housing 3, and the base 1 form a closed space. The entire casting cleaning process is carried out within this closed space, effectively preventing the abrasive from splashing everywhere and causing harm to the health of operators and the environment. The top of the housing 3 is equipped with a sand storage tank 6 and a connector 7. The sand storage tank 6 and the connector 7 are connected to the sandblasting gun 12 by a hose. The connector 7 is connected to a high-pressure water source. The sand storage tank 6 is filled with abrasive material (copper ore sand, quartz sand, iron sand, sea sand, corundum, etc.). High-pressure water is used as a power source and works with the sandblasting gun 12 to form a high-speed jet beam, which sprays the abrasive material at high speed onto the surface of the casting on the tray 11, thereby achieving the cleaning and decontamination of the casting surface.

[0028] In a further embodiment, the driving mechanism includes a lead screw 15 horizontally rotatably mounted on the top of the frame plate 2 and a slider 13 threaded onto the lead screw 15. The sandblasting gun 12 is mounted on the bottom of the slider 13, and the slider 13 slides against the top wall of the frame plate 2. A first motor 14 for driving the lead screw 15 to rotate is mounted on the side wall of the frame plate 2. A mounting plate 10 is horizontally fixed inside the base 1, and a tray 11 is rotatably mounted on the mounting plate 10. A second motor 19 for driving the tray 11 to rotate is mounted on the bottom of the mounting plate 10. During the sandblasting cleaning process of the casting, the second motor 19 drives the tray 11 to rotate, which can drive the casting to rotate to receive sandblasting cleaning. The first motor 14 is started to drive the lead screw 15 to rotate, which drives the slider 13 to slide along the top wall of the frame plate 2, which drives the sandblasting gun 12 to move horizontally, which can sandblast the casting to the sandblasting cleaning position, thereby achieving the purpose of uniform sandblasting cleaning of the casting. A waterproof cover is provided on the second motor 19 to avoid the influence of water and spray material on the second motor 19.

[0029] In a further embodiment, the base 1 is configured as a frame structure, with a flow guide hood 9 covering the bottom of the base 1. The bottom end of the flow guide hood 9 is connected to a bottom shell 8. The bottom wall of the tray 11 is hollowed out, and a filter basket 16 is movably embedded inside the bottom shell 8. A support frame 5 is provided at the bottom of the base 1, and a bottom plate 18 is bolted to the bottom end of the bottom shell 8. A drain pipe 17 is provided on the bottom plate 18, and the drain pipe 17 communicates with the inside of the bottom shell 8. During the sandblasting cleaning process of the casting, the sprayed abrasive and water can fall into the flow guide hood 9 through the hollow bottom wall of the tray 11, and then fall into the bottom shell 8 under the guidance of the flow guide hood 9. The abrasive and water mixture is filtered through the filter basket 16, and the abrasive is collected in the filter basket 16. The wastewater is discharged centrally through the drain pipe 17, which facilitates the recycling of water and abrasive, reduces waste liquid discharge and energy consumption, and conforms to the concept of energy conservation and environmental protection.

[0030] Working Principle: During operation, the turbine generator casting is placed on tray 11, and door 4 is closed. A closed space is formed between frame plate 2, shell 3, and base 1. Connect connector 7 to a high-pressure water source. The sand storage tank 6 is filled with abrasive materials (copper ore sand, quartz sand, iron sand, sea sand, corundum, etc.). High-pressure water is used as power, combined with the sandblasting gun 12 to form a high-speed jet, spraying the abrasive material at high speed onto the casting surface on tray 11, achieving cleaning and decontamination. The entire cleaning process is carried out within the closed space, avoiding the risk of abrasive material splashing and harm to operator health and the environment. Furthermore, during the cleaning process, the second motor 19 is activated to rotate tray 11, causing the casting to rotate and receive sandblasting cleaning. The first motor 14 is activated to rotate the lead screw 15, causing slider 13 to slide along the top wall of frame plate 2, moving the sandblasting gun 12 horizontally, thus achieving uniform sandblasting cleaning of the casting. Furthermore, during the sandblasting cleaning process of the casting, the sprayed material and water can fall into the guide hood 9 through the bottom wall of the hollow tray 11, and then fall into the bottom shell 8 under the guidance of the guide hood 9. At this time, the mixture of spray material and water is filtered through the screen basket 16, the spray material is retained in the screen basket 16 and collected, and the wastewater is discharged through the drain pipe 17, which facilitates the recycling of water and spray material and reduces the waste of resources.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] 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 high-efficiency cleaning device for castings, comprising a base (1), characterized in that: A tray (11) is provided on the base (1), a frame plate (2) is fixed on the top of the base (1), a sandblasting gun (12) is provided at the bottom of the frame plate (2), and a drive mechanism for driving the sandblasting gun (12) to move is provided on the frame plate (2). A cover (3) is provided between the two sides of the frame plate (2) and the upper surface of the base (1). The frame plate (2), the cover (3) and the base (1) form a closed space. A door (4) is provided on one side wall of the cover (3).

2. A high efficiency cleaning device for castings according to claim 1, wherein, The top of the housing (3) is provided with a sand storage tank (6) and a connector (7), and the sand storage tank (6) and the connector (7) are connected to the sandblasting gun (12) by a hose.

3. A high efficiency cleaning device for castings as claimed in claim 1 wherein, The driving mechanism includes a lead screw (15) that is horizontally rotated and mounted on the top of the frame plate (2) and a slider (13) threaded on the lead screw (15). The sandblasting gun (12) is mounted on the bottom of the slider (13). The slider (13) slides against the top wall of the frame plate (2). A first motor (14) for driving the lead screw (15) to rotate is mounted on the side wall of the frame plate (2).

4. A high efficiency cleaning device for castings as defined in claim 1, wherein, The base (1) is configured as a frame structure, and a flow guide (9) is provided on the bottom of the base (1). The bottom end of the flow guide (9) is connected to a bottom shell (8).

5. A high efficiency cleaning device for castings as claimed in claim 4 wherein, A mounting plate (10) is horizontally fixed inside the base (1). The tray (11) is rotatably mounted on the mounting plate (10). A second motor (19) for driving the tray (11) to rotate is installed at the bottom of the mounting plate (10). A waterproof cover is provided on the second motor (19).

6. A high efficiency cleaning device for castings as claimed in claim 4 wherein, The bottom wall of the tray (11) is hollowed out.

7. The high-efficiency cleaning device for castings according to claim 4, characterized in that, A filter basket (16) is movably embedded inside the bottom shell (8).

8. A high efficiency cleaning device for castings as defined in claim 4 wherein, The base (1) is provided with a support frame (5) at the bottom, and the bottom shell (8) is bolted to a base plate (18). A drain pipe (17) is provided on the base plate (18), and the drain pipe (17) is connected to the inside of the bottom shell (8).

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