Kerosene atomization device of supersonic speed thermal spraying spray gun

Abstract

The utility model discloses a kerosene atomizing device of a supersonic speed thermal spraying spray gun, which relates to the technical field of spray gun atomizing devices and comprises a female head, a male head is arranged in the female head, a conical body is arranged in the male head, a thread is fixed on the inner wall of the male head, a thread groove matched with the thread is arranged on the outer wall of the conical body, and the inner wall of the conical body is provided with a groove matched with the thread. The conical body is in threaded connection with the inner wall of the male head, a flow channel is formed between the conical body and the male head, and a dismounting assembly is arranged in the female head. Oil enters from the left side inlet, the shape of the oil outlet is limited into a pressurized outlet in the limited space of the inner conical body and the male head mist outlet hole, high-speed oil is limited and pressurized through the outlet, and therefore the atomization effect is achieved, and the inner conical body is connected with the shell through the rapid threads. An oil liquid flowing channel is arranged in the thread, so that the oil liquid can smoothly reach the mist outlet hole, and the male head can be quickly connected through the arranged disassembly and assembly assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of spray gun atomizing devices, in particular to a supersonic thermal spray gun kerosene atomizing device. Background Art

[0002] Supersonic thermal spraying is a spraying method that relies on the combustion of aviation kerosene and oxygen to provide a heat source. The efficiency of the heat source combustion affects the spraying quality, and whether the fuel is fully burned will affect the jet speed and carbon content. The traditional spray gun injects the fuel directly into the combustion chamber and mixes it with oxygen for combustion, which is not fully burned. The uniquely designed atomizing device is set inside the coaxial stabilizer. The kerosene is accurately injected through the oil pump and flow meter and the oil is turned into mist through the atomizing device, which can make it burn more fully and thus improve the coating quality.

[0003] The barrel of the spray gun has an angle of 60 degrees or 45 degrees with the combustion chamber. Common inner hole supersonic flame spray guns for spraying inner walls all use gas fuel. The pressure of gas fuel is not high. The combustion chamber pressure of this spray gun is low during combustion, and the flame speed formed is low. When spraying the inner wall of a relatively narrow pipe or the inner hole of some workpieces, the spray particle speed is generally 500m / s. The particles hit the surface of the workpiece to form a coating. For the coating that requires high bonding strength (greater than 80Mpa) and low porosity (less than 1%), this gas inner hole spray gun cannot meet the requirements.

[0004] The existing patent (Announcement No.: CN106591764B) is a liquid fuel inner hole supersonic flame spray gun, including a gun shell and a gun barrel in the gun shell, the fuel is injected into the combustion chamber from the fuel injection nozzle on the stabilizer, and the oxygen enters the combustion chamber through the oxygen nozzle on the stabilizer, and then the oxygen atomizes the fuel and mixes with the oxygen to enter the combustion chamber, and is ignited by the spark plug to fully burn the mixture in the combustion chamber to form a high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the convergence section through the elbow connector, the gas is compressed again, and then passes through the throat to turn the flame, and then enters the diffusion section to form a supersonic airflow, and the powder enters the flame core from the powder feeding needle of the elbow connector, and the flame coming out of the diffusion section continues to accelerate along the gun barrel, and the powder obtains heat in the flame and burns to a molten state, and is ejected from the outlet end of the gun barrel through the flame flow acceleration.

[0005] However, the above technical solution still has certain shortcomings. When the above solution is used, the nozzle cannot effectively compress the kerosene into mist, resulting in the kerosene being sprayed not being fine enough, affecting the overall combustion effect. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a kerosene atomization device for a supersonic thermal spraying gun to solve the technical problem of affecting the combustion of kerosene proposed in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kerosene atomization device for a supersonic thermal spray gun, comprising a female head, a male head is arranged inside the female head, a conical body is arranged inside the male head, a thread is fixed on the inner wall of the male head, a thread groove matching the thread is provided on the outer wall of the conical body, the conical body is threadedly connected to the inner wall of the male head, a flow channel is provided between the conical body and the male head, a mist outlet hole is provided at one end of the male head, and a disassembly and assembly component is provided inside the female head.

[0008] As an optimal technical solution for a supersonic thermal spray gun kerosene atomization device of the utility model, the disassembly and assembly component includes a moving cylinder, the moving cylinder is slidably sleeved on the outer wall of the female head, a baffle is fixed to the inner wall of the female head, a push plate is arranged on one side of the baffle, and a connecting column is arranged on one side of the push plate.

[0009] As an optimal technical solution for a supersonic thermal spray gun kerosene atomization device of the utility model, a fixing cylinder is provided on one side of the connecting column, a mounting plate is provided on one side of the fixing cylinder, a first rubber ring is provided on the other side of the baffle, and the first rubber ring is fixedly installed on one end of the male head.

[0010] As an optimal technical solution for a kerosene atomization device of a supersonic thermal spray gun of the utility model, a spring is arranged between the inner wall of the movable cylinder and the outer wall of the female head, a steel ball is arranged inside the movable cylinder, the steel ball is movably installed on the inner wall of the female head, and a hole matching the steel ball is opened on the inner wall of the female head, and the diameter of the steel ball is larger than the diameter of the hole.

[0011] As an optimal technical solution for a supersonic thermal spray gun kerosene atomization device of the utility model, the connecting column is slidably installed inside the fixed cylinder, and a spring is provided between the inner wall of the fixed cylinder and the connecting column, and the connecting column is fixedly connected to the push plate.

[0012] As a preferred technical solution of a supersonic thermal spray gun kerosene atomization device of the utility model, a push rod is fixed to one side of the push plate, and two push rods are symmetrically arranged about the push plate, and second rubber rings are arranged on both sides of the push plate.

[0013] As a preferred technical solution of a kerosene atomization device for a supersonic thermal spray gun of the utility model, the fixing tube is fixedly mounted on the side wall of the mounting plate, and the mounting plate is fixedly mounted on the inner wall of the female head.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The utility model allows oil to enter through the left inlet, and limits the shape of the oil outlet to a pressurized shape within the restricted space of the internal cone and the male head mist outlet hole. The oil at a high speed is limited and pressurized through this outlet, thereby achieving the effect of atomization. The internal cone and the outer shell are connected by a quick thread, and an oil flow channel is provided inside the thread, so that the oil can smoothly reach the mist outlet hole. The provided disassembly and assembly components can quickly connect the male head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 This is a split diagram of the male plug of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the male plug of the utility model;

[0019] Figure 4 It is a front cross-sectional view of the male and female heads of the utility model;

[0020] Figure 5 It is a right side view of the mounting plate of the utility model.

[0021] In the figure: 1, female head; 2, male head; 310, cone; 320, mist outlet hole; 330, flow channel; 410, moving cylinder; 420, baffle; 430, steel ball; 440, first rubber ring; 450, second rubber ring; 460, push plate; 470, push rod; 480, connecting column; 490, fixed cylinder; 4910, mounting plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0023] The following describes an embodiment of the utility model based on its overall structure.

[0024] A supersonic thermal spray gun kerosene atomizing device, such as Figure 1-5 As shown, it includes a female head 1, a male head 2 is arranged inside the female head 1, a conical body 310 is arranged inside the male head 2, a thread is fixed on the inner wall of the male head 2, a thread groove matching the thread is provided on the outer wall of the conical body 310, the conical body 310 and the inner wall of the male head 2 are threadedly connected, a flow channel 330 is provided between the conical body 310 and the male head 2, a mist outlet hole 320 is provided at one end of the male head 2, and a disassembly assembly component is provided inside the female head 1.

[0025] The oil enters through the left inlet, and the oil outlet shape is limited to a pressurized outlet within the restricted space of the internal cone 310 and the mist outlet hole 320 of the male head 2. The oil at a high speed is limited and pressurized through this outlet, thereby achieving the effect of atomization. The internal cone 310 and the outer shell are connected by a quick thread, and an oil flow channel 330 is provided inside the thread, so that it can smoothly reach the mist outlet hole 320.

[0026] Please refer to Figure 1 , Figure 4 and Figure 5 The disassembly and assembly components include a moving cylinder 410, which is slidably sleeved on the outer wall of the female head 1, a baffle 420 is fixed to the inner wall of the female head 1, a push plate 460 is arranged on one side of the baffle 420, a connecting column 480 is arranged on one side of the push plate 460, a fixed cylinder 490 is arranged on one side of the connecting column 480, a mounting plate 4910 is arranged on one side of the fixed cylinder 490, a first rubber ring 440 is arranged on the other side of the baffle 420, and the first rubber ring 440 is fixedly installed on one end of the male head 2, a spring is arranged between the inner wall of the moving cylinder 410 and the outer wall of the female head 1, a steel ball 430 is arranged inside the moving cylinder 410, and the steel ball 430 is movable. It is installed on the inner wall of the female head 1, and a hole matching the steel ball 430 is opened on the inner wall of the female head 1, the diameter of the steel ball 430 is larger than the diameter of the hole, the connecting column 480 is slidably installed inside the fixed cylinder 490, and a spring is arranged between the inner wall of the fixed cylinder 490 and the connecting column 480, the connecting column 480 is fixedly connected to the push plate 460, a push rod 470 is fixed on one side of the push plate 460, and two push rods 470 are symmetrically arranged about the push plate 460, and a second rubber ring 450 is arranged on both sides of the push plate 460, the fixed cylinder 490 is fixedly installed on the side wall of the mounting plate 4910, and the mounting plate 4910 is fixedly installed on the inner wall of the female head 1.

[0027] By pushing the moving cylinder 410 from one side, the male head 2 moves toward the inside of the female head 1. One end of the male head 2 squeezes the push rod 470, driving the push plate 460 to move to one side, so that the push plate 460 is separated from the baffle 420, and then the moving cylinder 410 is loosened. The moving cylinder 410 is reset by the spring, squeezing the steel ball 430, and the steel ball 430 moves to the groove on the outer wall of the male head 2 to limit the male head 2, and the installation is completed. Conversely, the moving cylinder 410 is moved to one side and the male head 2 is pulled outward to separate the male head 2 from the female head 1 and complete the disassembly.

[0028] During use, the moving cylinder 410 is pushed by one side, and then the male head 2 moves toward the inside of the female head 1. One end of the male head 2 squeezes the push rod 470, driving the push plate 460 to move to one side, so that the push plate 460 is separated from the baffle 420, and then the moving cylinder 410 is loosened. The moving cylinder 410 is reset by the spring, squeezing the steel ball 430, and the steel ball 430 moves to the groove on the outer wall of the male head 2 to limit the male head 2, and the installation can be completed. Conversely, the moving cylinder 410 is moved to one side and the male head 2 is pulled outward to separate the male head 2 from the female head 1, and the disassembly is completed. The oil enters through the left inlet, and the shape of the oil outlet is limited to a pressurized shape within the restricted space of the internal cone 310 and the mist outlet hole 320 of the male head 2. The high-speed oil is limited and pressurized through this outlet, thereby achieving the effect of atomization.

[0029] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A kerosene atomizing device for a supersonic thermal spray gun, comprising a female head (1), characterized in that: The female head (1) is provided with a male head (2) inside, the male head (2) is provided with a conical body (310) inside, the inner wall of the male head (2) is fixed with a thread, the outer wall of the conical body (310) is provided with a thread groove matching the thread, the conical body (310) and the inner wall of the male head (2) are connected by threads, a flow channel (330) is provided between the conical body (310) and the male head (2), one end of the male head (2) is provided with a mist outlet hole (320), and a disassembly assembly component is provided inside the female head (1).

2. The kerosene atomizing device for a supersonic thermal spraying gun according to claim 1, characterized in that: The disassembly assembly comprises a moving cylinder (410), wherein the moving cylinder (410) is slidably sleeved on the outer wall of the female head (1), a baffle (420) is fixed to the inner wall of the female head (1), a push plate (460) is arranged on one side of the baffle (420), and a connecting column (480) is arranged on one side of the push plate (460).

3. The kerosene atomizing device for a supersonic thermal spraying gun according to claim 2, characterized in that: A fixing tube (490) is disposed on one side of the connecting column (480), a mounting plate (4910) is disposed on one side of the fixing tube (490), and a first rubber ring (440) is disposed on the other side of the baffle (420), wherein the first rubber ring (440) is fixedly mounted on one end of the male head (2).

4. The kerosene atomizing device for a supersonic thermal spraying gun according to claim 2, characterized in that: A spring is arranged between the inner wall of the movable cylinder (410) and the outer wall of the female head (1), a steel ball (430) is arranged inside the movable cylinder (410), the steel ball (430) is movably mounted on the inner wall of the female head (1), and a hole matching the steel ball (430) is opened on the inner wall of the female head (1), and the diameter of the steel ball (430) is larger than the diameter of the hole.

5. The kerosene atomizing device for a supersonic thermal spraying gun according to claim 4, characterized in that: The connecting column (480) is slidably mounted inside the fixing cylinder (490), and a spring is provided between the inner wall of the fixing cylinder (490) and the connecting column (480), and the connecting column (480) is fixedly connected to the push plate (460).

6. The kerosene atomizing device for a supersonic thermal spraying gun according to claim 5, characterized in that: A push rod (470) is fixed to one side of the push plate (460), and two push rods (470) are symmetrically arranged with respect to the push plate (460). Second rubber rings (450) are arranged on both sides of the push plate (460).

7. The kerosene atomizing device for a supersonic thermal spraying gun according to claim 3, characterized in that: The fixing tube (490) is fixedly mounted on the side wall of the mounting plate (4910), and the mounting plate (4910) is fixedly mounted on the inner wall of the female head (1).

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