Normal-pressure jet-type plasma cleaning rotating nozzle of sleeve-free short rotating shaft

Abstract

The utility model discloses a sleeve-free short rotating shaft normal pressure jet type plasma cleaning rotating nozzle which comprises a fixing plate, a bearing sleeve is arranged above the fixing plate, a discharging mechanism is arranged at the center of the interior of the bearing sleeve, a second synchronous belt wheel is arranged on one side of the bearing sleeve, and a second synchronous belt wheel is arranged on the other side of the bearing sleeve. A conveying belt is arranged on the outer wall of the second synchronous belt wheel, a rotary spraying nozzle is arranged on one side of the second synchronous belt wheel, a first synchronous belt wheel is arranged on one side of the conveying belt, a motor is arranged on one side of the first synchronous belt wheel, and a motor controller is arranged above the motor; a metal corrugated pipe is arranged on one side of the upper portion of the motor controller, a metal plate housing is arranged on one side of the fixing plate, the total axial length of the spray head is shortened to be smaller than 20 cm, the total size of the spray gun is greatly reduced, the spray gun meets the application requirement of a narrow space, the mechanical structure is simple, the assembly process is simple, maintenance and repair are convenient, and use of a traditional outer sleeve is eliminated.

Description

Technical Field

[0001] The utility model relates to the field of rotary spray nozzles, and more specifically, to a normal pressure jet type plasma cleaning rotary spray nozzle without a sleeve and a short rotating shaft. Background Art

[0002] Atmospheric pressure jet plasma cleaning equipment is primarily used in the field of material surface modification. Its operating principle is to ionize gas between the cathode and anode using a DC high-voltage or high-frequency high-voltage power supply under atmospheric pressure to generate plasma. This plasma contains a rich supply of active particles such as electrons, ions, and free radicals. Driven by the gas, these active particles reach the surface of the product and undergo physical or chemical reactions with it, thereby achieving surface cleaning and activation.

[0003] After searching, the existing patent (publication number: CN219843770U) discloses a low-static, low-noise, atmospheric jet direct-injection spray gun, which includes a power box and a direct-injection spray gun. A touch screen and a button switch are provided on one side of the power box. A gas throttling mechanism connected to the direct-injection spray gun is provided inside the power box. A DC power supply, a 220V power supply and an I / O port are fixedly installed inside the power box. The direct-injection spray gun includes a connecting assembly connected to the gas throttling mechanism, an electric field generating assembly and a nozzle. The connecting assembly, the electric field generating assembly and the nozzle are connected in sequence. The injection end of the nozzle is provided with a protruding flame-spraying hole, and the interior of the nozzle is provided with an internal gradually shrinking contraction channel, which is connected to the flame-spraying hole, and the end of the nozzle is provided with multiple groups connected to the contraction channel. A plasma generator connected to the electric field generating assembly by a cable is provided inside the power box. In the process of realizing the utility model, the inventor found that the prior art has the following problems:

[0004] The existing atmospheric jet-type rotary spray nozzle has a long axial length, which makes it difficult to adapt to the operation requirements of narrow spaces and limits its application scenarios. Secondly, the discharge area is located in an external sleeve. This design has certain risks and may affect the stability and safety of the equipment.

[0005] Therefore, in order to solve the above problems, a normal pressure jet type plasma cleaning rotary nozzle with a sleeve-free short rotating shaft is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a normal pressure jet type plasma cleaning rotary nozzle without a sleeve and a short rotating shaft, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a normal pressure jet plasma cleaning rotary nozzle with a sleeveless short rotating shaft, comprising a fixed plate, a bearing sleeve is arranged above the fixed plate, a discharge mechanism is arranged at the inner center of the bearing sleeve, a second synchronous pulley is arranged on one side of the bearing sleeve, a conveyor belt is arranged on the outer wall of the second synchronous pulley, a rotary spray nozzle is arranged on one side of the second synchronous pulley, a first synchronous pulley is arranged on one side of the conveyor belt, a motor is arranged on one side of the first synchronous pulley, a motor controller is arranged above the motor, a metal bellows is arranged on the upper side of the motor controller, and a sheet metal cover is arranged on one side of the fixed plate.

[0008] Preferably, the discharge mechanism includes a discharge electrode, a ceramic insulating sleeve, an air pipe and a grounding electrode. A ceramic insulating sleeve is provided on one side of the discharge electrode, an air pipe is provided in the hollow interior of the ceramic insulating sleeve, and a grounding electrode is provided at the connection between the bearing sleeve and the rotary spray nozzle.

[0009] Preferably, the discharge mechanism is located in the hollow portion of the bearing sleeve and is arranged side by side with the motor.

[0010] Preferably, the electric wires connected to the discharge electrode and the air pipe are passed through the hollow part of the bearing sleeve, so that the discharge electrode ionizes the gas in the air pipe to generate plasma which is discharged from the spin jet nozzle.

[0011] Preferably, the motor drives the first synchronous pulley to rotate, so that the conveyor belt on the outer wall of the first synchronous pulley synchronously drives the second synchronous pulley to rotate, thereby rotating the bearing sleeve.

[0012] Preferably, the bearing sleeve is arranged inside the fixing plate, so that the total axial length of the nozzle of the rotary spray nozzle is less than 20CM.

[0013] The technical effects and advantages of this utility model are:

[0014] Compared with the existing technology, this atmospheric pressure jet plasma cleaning rotary nozzle with a short rotating shaft without a sleeve shortens the length in the rotating shaft direction and reduces the total volume of the spray gun, so that it can be used in narrower spaces. It does not require an external sleeve, saves materials and simplifies the mechanical structure, making assembly easier. The sleeve is built-in, shortening the total axial length of the nozzle to less than 20 cm, greatly reducing the total volume of the spray gun, adapting to the application requirements of narrow spaces, with a simple mechanical structure, a simple assembly process, and easy maintenance and repair. It eliminates the use of a traditional outer sleeve, effectively reduces equipment failures and safety risks that may be caused by friction, and improves overall operational reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall side sectional structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the sheet metal cover of the utility model.

[0018] The figures are marked as follows: 1. fixed plate; 2. bearing sleeve; 3. discharge mechanism; 4. second synchronous pulley; 5. conveyor belt; 6. rotary spray nozzle; 7. first synchronous pulley; 8. motor; 9. motor controller; 10. metal bellows; 11. sheet metal cover; 12. discharge electrode; 13. ceramic insulating sleeve; 14. air pipe; 15. grounding electrode. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] As attached Figures 1 to 3 The shown is a sleeveless short-rotating shaft atmospheric jet plasma cleaning rotary nozzle, which includes a fixed plate 1. The fixed plate 1 is usually made of high-temperature resistant and corrosion-resistant materials to adapt to the high temperature and chemically active substances in the plasma environment. Through the stable internal component configuration, the fixed plate 1 enhances the mechanical stability of the entire nozzle and reduces the wear or damage caused by vibration or long-term operation. A bearing sleeve 2 is arranged above the fixed plate 1, and its main function is to support and position the rotating parts. The bearing sleeve 2 is usually made of high-strength, low-friction coefficient materials, such as special ceramics or cemented carbide, to reduce internal friction and provide long-term durability. The built-in bearing sleeve 2 simplifies the mechanical structure, eliminates the traditionally required external sleeve, and reduces manufacturing costs and assembly complexity.

[0022] A discharge mechanism 3 is provided at the inner center of the bearing sleeve 2. Through the built-in discharge mechanism 3, the equipment can effectively generate plasma under normal pressure environment, thereby improving energy utilization efficiency. The improved discharge mechanism 3 simplifies the operation process, making the startup and maintenance of the equipment more convenient. A second synchronous pulley 4 is provided on one side of the bearing sleeve 2, and a conveyor belt 5 is provided on the outer wall of the second synchronous pulley 4. The second synchronous pulley 4 is usually made of high-strength materials, such as metal or high-performance plastic, to ensure its durability and stability. The conveyor belt 5 is made of wear-resistant and high-strength materials, such as reinforced rubber or polyurethane. Through the precisely designed synchronous pulley and conveyor belt 5 system, stable power transmission from the motor 8 to the bearing sleeve 2 is achieved, ensuring uniform and controllable rotation of the rotating parts. A rotary spray nozzle 6 is provided on one side of the second synchronous pulley 4. The rotary spray nozzle 6 is usually made of high-temperature resistant and wear-resistant materials The nozzle is made of a material such as a special alloy or ceramic material to withstand the pressure of high-temperature plasma flow and compressed gas. The internal structure of the nozzle is designed to be vortex-shaped or spiral-shaped to increase the rotation of the gas flow, thereby improving the uniformity and coverage efficiency of the spray. The design of the rotary spray nozzle 6 enables the plasma and compressed gas to be more evenly covered on the treatment surface, thereby improving the efficiency of cleaning and surface modification. A first synchronous pulley 7 is provided on one side of the conveyor belt 5, and a motor 8 is provided on one side of the first synchronous pulley 7. A motor controller 9 is provided above the motor 8. The motor 8 usually adopts high-performance electromagnetic materials and high-durability bearing materials to ensure long-term stable operation. The motor controller 9 uses advanced electronic components and circuit design to achieve precise control. Through the motor controller 9, the operator can quickly adjust the parameters of the motor 8 according to different needs, thereby increasing the adaptability and operational flexibility of the equipment.

[0023] A metal bellows 10 is provided on the upper side of the motor controller 9, and a sheet metal cover 11 is provided on one side of the fixed plate 1. The metal bellows 10 is made of flexible and corrosion-resistant metal materials, such as stainless steel, to adapt to different working environments. The sheet metal cover 11 uses sturdy metal plates, such as galvanized steel plates or aluminum alloys, to enhance its structural strength and durability. The metal bellows 10 and the sheet metal cover 11 together provide double protection for internal sensitive components to prevent damage to them by the external environment, thereby enhancing the safety of the equipment. The electromagnetic shielding effect of the sheet metal cover 11 can reduce external electromagnetic interference and ensure the stable operation of the internal circuit. At the same time, a number of groups of heat dissipation holes are provided on the outer wall of the sheet metal cover 11, so that the heat generated by the internal parts during operation can be directly discharged to avoid heat affecting the working performance of the parts.

[0024] Example 2

[0025] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 3As shown, see the following description for details:

[0026] As a preferred embodiment, the discharge mechanism 3 includes a discharge electrode 12, a ceramic insulating sleeve 13, an air pipe 14 and a grounding electrode 15. A ceramic insulating sleeve 13 is provided on one side of the discharge electrode 12, and an air pipe 14 is provided in the internal hollow of the ceramic insulating sleeve 13. A grounding electrode 15 is provided at the connection between the bearing sleeve 2 and the rotary spray nozzle 6. Furthermore, the discharge electrode 12 is usually made of a material with good electrical conductivity, and the insulating ceramic sleeve 13 is made of a material resistant to high temperature and high voltage to ensure safe operation. The air pipe 14 generally uses a high-voltage resistant polymer material, and the grounding electrode 15 is usually made of a metal with good conductivity. The combined effect of the ceramic insulating sleeve 13 and the grounding electrode 15 greatly improves the electrical safety of the equipment and prevents high-voltage leakage and other electrical failures.

[0027] As a preferred embodiment, the discharge mechanism 3 is located in the hollow part of the bearing sleeve 2 and is side by side with the motor 8. Furthermore, the internal structure is simplified by the side-by-side design of the built-in discharge mechanism 3 and the motor 8, making the assembly process faster and more convenient. This layout reduces complex external connections and reduces the possibility of assembly errors. At the same time, the close coupling of the discharge mechanism 3 and the motor 8 reduces energy loss and transmission delay, and improves the response speed and cleaning efficiency of the system.

[0028] As a preferred embodiment, the discharge electrode 12 is connected to the power supply through the wires and the air pipe 14 through the hollow part of the bearing sleeve 2, so that the discharge electrode 12 ionizes the gas in the air pipe 14 to generate plasma which is discharged from the rotary jet nozzle 6. Furthermore, the discharge electrode 12 is directly connected to the power supply through a high-voltage line, ensuring efficient transmission of high-voltage current. At the same time, the air pipe 14 is tightly connected to the discharge electrode 12, so that the gas can pass smoothly before being ionized, thereby improving the efficiency of plasma generation. Efficient plasma generation reduces energy consumption. At the same time, the compact design also reduces material usage, thereby reducing operating costs.

[0029] As a preferred embodiment, the motor 8 drives the first synchronous pulley 7 to rotate, so that the conveyor belt 5 on the outer wall of the first synchronous pulley 7 synchronously drives the second synchronous pulley 4 to rotate, thereby rotating the bearing sleeve 2. Furthermore, since the bearing sleeve 2 can rotate freely under the drive of the pulley, this design enables the rotary spray nozzle 6 to adapt to various working environments and requirements, thereby increasing the flexibility and applicability of the equipment.

[0030] As a preferred embodiment, the bearing sleeve 2 is arranged inside the fixed plate 1, so that the total axial length of the nozzle of the rotary spray nozzle 6 is less than 20CM. Furthermore, this design enables it to adapt to narrow working spaces, such as small workshops or compact production lines, thereby expanding the application range of the equipment. The compact nozzle design is not only suitable for large equipment, but also for small or portable equipment, thereby increasing the market adaptability of the product.

[0031] The working process of the present invention is as follows: first, the given signal of the host computer is sent to the motor controller, the controller controls the motor 8 to rotate at a given speed, and feeds back the speed signal to the host computer in real time. At the same time, the synchronous pulley of the motor 8 drives the bearing sleeve 2 to rotate through the conveyor belt 5. The high-voltage power supply releases energy inside the sleeve through the high-voltage cable, ionizes the gas to generate plasma, and the compressed gas flows through the hollow of the bearing sleeve 2, carrying the plasma and ejecting it from the rotary nozzle 6 to process the product. The above is the working principle of this normal-pressure jet plasma cleaning rotary nozzle with a short rotating shaft without a sleeve.

Claims

1. A non-sleeve short shaft atmospheric pressure jet plasma cleaning rotary nozzle, comprising a fixed plate (1), characterized in that: A bearing sleeve (2) is provided above the fixed plate (1), a discharge mechanism (3) is provided at the inner center of the bearing sleeve (2), a second synchronous pulley (4) is provided on one side of the bearing sleeve (2), a conveyor belt (5) is provided on the outer wall of the second synchronous pulley (4), a rotary spray nozzle (6) is provided on one side of the second synchronous pulley (4), a first synchronous pulley (7) is provided on one side of the conveyor belt (5), a motor (8) is provided on one side of the first synchronous pulley (7), a motor controller (9) is provided above the motor (8), a metal bellows (10) is provided on one side above the motor controller (9), and a sheet metal cover (11) is provided on one side of the fixed plate (1).

2. The atmospheric pressure jet type plasma cleaning rotary nozzle without sleeve and short rotating shaft according to claim 1, characterized in that: The discharge mechanism (3) comprises a discharge electrode (12), a ceramic insulating sleeve (13), an air pipe (14) and a grounding electrode (15); a ceramic insulating sleeve (13) is provided on one side of the discharge electrode (12); an air pipe (14) is provided in the hollow interior of the ceramic insulating sleeve (13); and a grounding electrode (15) is provided at the connection between the bearing sleeve (2) and the rotary jet nozzle (6).

3. The atmospheric pressure jet type plasma cleaning rotary nozzle without a sleeve short rotating shaft according to claim 1, characterized in that: The discharge mechanism (3) is located in the hollow portion of the bearing sleeve (2) and is arranged side by side with the motor (8).

4. The atmospheric pressure jet type plasma cleaning rotary nozzle without a sleeve and a short rotating shaft according to claim 2, characterized in that: The discharge electrode (12) is connected to a power supply through a wire and the gas pipe (14) through the hollow portion of the bearing sleeve (2), so that the discharge electrode (12) ionizes the gas in the gas pipe (14) to generate plasma that is discharged from the spin jet nozzle (6).

5. The atmospheric pressure jet type plasma cleaning rotary nozzle without sleeve and short rotating shaft according to claim 1, characterized in that: The motor (8) drives the first synchronous pulley (7) to rotate, so that the conveyor belt (5) on the outer wall of the first synchronous pulley (7) synchronously drives the second synchronous pulley (4) to rotate, thereby rotating the bearing sleeve (2).

6. The atmospheric pressure jet type plasma cleaning rotary nozzle without sleeve and short rotating shaft according to claim 1, characterized in that: The bearing sleeve (2) is arranged inside the fixing plate (1), so that the total axial length of the nozzle of the rotary spray nozzle (6) is less than 20 cm.

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