Combustion air oxygen supply assembly for a flame spray gun

Abstract

The utility model provides a kind of combustion-supporting oxygen-permeable assembly of flame spraying machine, including flame spraying machine body and the air inlet slot opening on the outside wall of flame spraying machine body, the inboard wall of air inlet slot is slidably connected with conical fixed cylinder, combustion-supporting oxygen-permeable mechanism is arranged in the conical fixed cylinder;The combustion-supporting oxygen-permeable mechanism includes rotating circular cavity opened in the conical fixed cylinder inside.The utility model, through the cooperation control hole and arc mouth in combustion-supporting oxygen-permeable mechanism double rotating disc, can accurately adjust the flow and mixing ratio of combustion-supporting gas and oxygen according to spraying demand, realize the flexible regulation of flame temperature and intensity, gear chain transmission system ensures that rotating disc is synchronously operated, avoids airflow control misalignment, independent gas source pipeline and detachable design, both facilitate multiple gas source access and proportional adjustment, and simplify maintenance process, effectively improve the efficiency and quality stability of flame spraying process.

Description

Technical Field

[0001] This utility model relates to the field of flame spraying equipment, and in particular to a combustion-supporting oxygen supply component for a flame spraying machine. Background Technology

[0002] Flame spraying technology is a process that melts the coating material with a high-temperature flame and sprays it onto the surface of a substrate to form a coating. It is widely used in fields such as machinery manufacturing and aerospace. The core function of a flame spraying machine relies on the stable operation of the combustion-supporting oxygen supply system. This system needs to precisely control the mixing ratio and flow rate of oxygen and combustion-supporting agent to regulate flame temperature and combustion efficiency. Traditional combustion-supporting oxygen supply components typically use fixed channels or simple valves to control gas flow, which is insufficient to meet the dynamic adjustment requirements of flame parameters in complex spraying processes.

[0003] In current flame spraying machines, the combustion-supporting oxygen supply components typically use a single gas source channel design during the gas supply process. This single gas source channel design cannot independently adjust the input of oxygen and combustion-supporting agent, resulting in a fixed mixing ratio. It is difficult to dynamically adjust the flame temperature and combustion efficiency according to the requirements of the spraying process. For example, different spraying materials have different requirements for flame temperature, oxidizing or reducing atmosphere. Due to the lack of flexible gas source coordination control capabilities, a single channel may lead to incomplete fuel combustion or flame characteristics deviating from the optimal range, thereby affecting the stability of coating quality. Therefore, we propose a combustion-supporting oxygen supply component for a flame spraying machine to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a combustion-supporting oxygen supply component for a flame spraying machine.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a combustion-supporting oxygen supply component for a flame spraying machine, including a flame spraying machine body and an air inlet slot opened on the outer side wall of the flame spraying machine body, a conical fixed cylinder slidably connected to the inner side wall of the air inlet slot, and a combustion-supporting oxygen supply mechanism being provided inside the conical fixed cylinder.

[0006] The combustion-supporting oxygen supply mechanism includes a rotating cavity inside a conical fixed cylinder. A Y-shaped ventilation channel and two ventilation holes communicating with the rotating cavity are provided on the outer wall of the conical fixed cylinder. Two rotating disks are rotatably connected to the inner wall of the rotating cavity. An arc-shaped opening and multiple control holes are provided on the outer wall of each rotating disk. An extension pipe is fixedly installed on the inner wall of one of the ventilation holes and one of the ventilation holes in the Y-shaped ventilation channel. The outer wall of the extension pipe is slidably connected to the inner wall of the arc-shaped opening. The end of the extension pipe is slidably connected to the outer wall of an adjacent rotating disk. The outer walls of the two rotating disks are slidably connected. An extension pipe is fixedly installed on the outer wall of the conical fixed cylinder. There are two fixed plates, and a first rotating shaft is rotatably connected between the two fixed plates. A second rotating shaft is rotatably connected to the outer wall of the fixed plates. A motor is fixedly installed on the outer wall of one of the fixed plates. The output shaft of the motor is fixedly connected to the end of the first rotating shaft. A first gear is fixedly sleeved on the outer wall of the first rotating shaft and one of the second rotating shafts. A second gear is fixedly sleeved on the outer wall of the other second rotating shaft. The two first gears are meshed together. The outer walls of the first rotating shaft and the other second rotating shaft are connected by a chain drive. A toothed ring is fixedly sleeved on the outer wall of the rotating disk. One of the first gears and one of the second gears on the same side are meshed with the toothed ring.

[0007] An installation plate is fixedly installed on the outer wall of the conical fixed cylinder, and the flame spraying machine body and the installation plate are detachably connected by multiple fixing bolts.

[0008] An oxygen supply pipe connected to a Y-shaped ventilation channel is fixedly installed on the outer wall of the conical fixed cylinder.

[0009] An oxygen pipe connected to one of the ventilation holes is fixedly installed on the outer wall of the conical fixed cylinder, and a combustion-supporting pipe connected to the other ventilation hole is fixedly installed on the outer wall of the conical fixed cylinder.

[0010] Both the first pivot and the other second pivot have chain discs fitted on their outer walls to match the chain.

[0011] The inner diameter of the multiple control holes located on the same rotating disk gradually increases in a clockwise direction.

[0012] The two rotating disks are arranged coaxially.

[0013] Compared with the prior art, the beneficial effects of this utility model include: by using the dual rotating disks in the combustion-supporting oxygen supply mechanism in conjunction with the control hole and arc-shaped opening, the flow rate and mixing ratio of the combustion-supporting gas and oxygen can be precisely adjusted according to the spraying requirements, so as to achieve flexible control of flame temperature and intensity. The gear chain transmission system ensures that the rotating disks operate synchronously, avoiding inaccurate airflow control. The independent gas source pipeline and detachable design not only facilitate the access of multiple gas sources and ratio adjustment, but also simplify the maintenance process, effectively improving the efficiency and quality stability of the flame spraying process. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 The schematic diagram shows a combustion-supporting oxygen supply component of a flame spraying machine according to one embodiment of the present invention.

[0016] Figure 2 The diagram illustrates the distribution of multiple control holes in a combustion-supporting oxygen supply component of a flame spraying machine according to one embodiment of the present invention.

[0017] Figure 3 The diagram schematically shows a front view of a mounting plate in a combustion-supporting oxygen supply assembly of a flame spraying machine according to one embodiment of the present invention.

[0018] Labels in the diagram: 1. Flame spraying machine body; 2. Air inlet; 3. Conical fixed cylinder; 4. Rotating cavity; 5. Y-shaped air passage; 6. Air vent; 7. Rotating disc; 8. Arc-shaped opening; 9. Control hole; 10. Extension end pipe; 11. Fixing plate; 12. First rotating shaft; 13. Second rotating shaft; 14. Motor; 15. First gear; 16. Chain; 17. Gear ring; 18. Mounting plate; 19. Fixing bolt; 20. Combustion-supporting oxygen pipe; 21. Oxygen pipe; 22. Combustion-supporting pipe; 23. Second gear. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0020] According to one embodiment of the present invention, in conjunction with Figure 1-3As shown. A combustion-supporting oxygen supply component for a flame spraying machine includes a flame spraying machine body 1 and an air inlet 2 opened on the outer side wall of the flame spraying machine body 1. A conical fixed cylinder 3 is slidably connected to the inner side wall of the air inlet 2, and a combustion-supporting oxygen supply mechanism is provided inside the conical fixed cylinder 3.

[0021] The combustion-supporting oxygen supply mechanism includes a rotating cavity 4 inside a conical fixed cylinder 3. A Y-shaped ventilation channel 5 communicating with the rotating cavity 4 and two ventilation holes 6 are provided on the outer wall of the conical fixed cylinder 3. Two rotating disks 7 are rotatably connected to the inner wall of the rotating cavity 4. An arc-shaped opening 8 and multiple control holes 9 are provided on the outer wall of the rotating disks 7. An extension pipe 10 is fixedly installed on the inner wall of one of the openings in the Y-shaped ventilation channel 5 and the inner wall of one of the ventilation holes 6. The outer wall of the extension pipe 10 is slidably connected to the inner wall of the arc-shaped opening 8. The end of the extension pipe 10 is slidably connected to the outer wall of the adjacent rotating disk 7. The outer walls of the two rotating disks 7 are slidably connected. Two fixing plates 11 are fixedly installed on the outer wall of the conical fixed cylinder 3. A first rotating shaft 12 is rotatably connected between two fixed plates 11. A second rotating shaft 13 is rotatably connected to the outer wall of the fixed plate 11. A motor 14 is fixedly installed on the outer wall of one of the fixed plates 11. The output shaft of the motor 14 is fixedly connected to the end of the first rotating shaft 12. A first gear 15 is fixedly sleeved on the outer wall of the first rotating shaft 12 and one of the second rotating shafts 13. A second gear 23 is fixedly sleeved on the outer wall of the other second rotating shaft 13. The two first gears 15 are meshed and connected. The outer walls of the first rotating shaft 12 and the other second rotating shaft 13 are connected by a chain 16. A toothed ring 17 is fixedly sleeved on the outer wall of the rotating disk 7. One first gear 15 and the second gear 23 on the same side are meshed with the toothed ring 17.

[0022] To further explain, by rotating the two rotating disks 7 (driven by the motor 14 through the first rotating shaft 12, gear and chain 16 transmission system), the relative position of the arc-shaped opening 8 and the extension end pipe 10, as well as the opening and closing degree of the control hole 9, is changed, thereby achieving precise adjustment of the flow rate of the combustion-supporting gas (such as oxygen). The Y-shaped ventilation channel 5 and the two ventilation holes 6 are respectively connected to different gas sources (such as oxygen and combustion-supporting agents). Through the cooperation of the rotating disks 7, the mixing ratio of multiple gas sources can be adjusted, optimizing combustion efficiency and reducing energy consumption and pollutant emissions. The combination of gear meshing and chain 16 transmission (first gear 15, second gear 23, second rotating shaft 13 and chain disk) ensures that the two rotating disks 7 rotate synchronously, avoiding airflow control inaccuracy caused by speed difference and improving system stability.

[0023] like Figure 1 and Figure 3 As shown, an installation plate 18 is fixedly installed on the outer wall of the conical fixed cylinder 3, and the flame spraying machine body 1 and the installation plate 18 are detachably connected by multiple fixing bolts 19.

[0024] To further explain, the combination of mounting plate 18 and fixing bolts 19 allows the conical fixed cylinder 3 to be quickly disassembled for maintenance, facilitating the cleaning of internal scale or replacement of worn parts, thereby reducing equipment downtime and maintenance costs.

[0025] like Figure 1 As shown, a combustion-supporting oxygen supply pipe 20, which is connected to the Y-shaped ventilation channel 5, is fixedly installed on the outer wall of the conical fixed cylinder 3.

[0026] To further explain, the combustion-supporting oxygen supply pipe 20 is connected to the Y-type ventilation channel 5, providing a single external interface, simplifying pipeline connections, avoiding the complexity of multiple pipeline layouts, and facilitating quick connection with external combustion-supporting sources (such as oxygen cylinders).

[0027] like Figure 1 As shown, an oxygen pipe 21 connected to one of the ventilation holes 6 is fixedly installed on the outer wall of the conical fixed cylinder 3, and a combustion-supporting pipe 22 connected to the other ventilation hole 6 is fixedly installed on the outer wall of the conical fixed cylinder 3.

[0028] To further explain, the oxygen pipe 21 and the combustion-supporting pipe 22 are respectively connected to two vent holes 6, realizing independent supply and control of oxygen and combustion-supporting agent. The flow rate of a certain gas source can be adjusted separately according to process requirements (such as oxygen-enriched combustion or oxygen-deficient combustion mode), improving the flexibility of flame temperature control.

[0029] like Figure 1 As shown, the outer walls of the first pivot 12 and the other second pivot 13 are fitted with chain discs that are compatible with the chain 16.

[0030] To further explain, the matching design of the chain disc and chain 16 ensures that there is no slippage during transmission, especially in high-speed or long-term operation scenarios, maintaining the consistency of the rotation speed of the rotating disc 7, and ensuring the stability and accuracy of airflow control.

[0031] like Figure 2 As shown, the inner diameter of multiple control holes 9 located on the same rotating disk 7 gradually increases in a clockwise direction.

[0032] To further explain, multiple control holes 9 are eccentrically arranged on the outer wall of the rotating disk 7. The design of increasing inner diameter of the control holes 9 on the same rotating disk 7 makes the rotation angle and the air flow linearly related. Operators can intuitively adjust the flow rate through simple angle scales (implicit design), reducing the difficulty of operation and improving process repeatability.

[0033] like Figure 1 As shown, the two rotating disks 7 are arranged coaxially.

[0034] To further explain, this design avoids mechanical wear and airflow fluctuations caused by eccentric rotation, ensuring that the arc-shaped port 8 and the extended end tube 10 always maintain concentricity, thereby improving sealing performance and control accuracy.

[0035] The functional principle of this utility model can be explained through the following operation methods:

[0036] Device connection

[0037] Connect the combustion-supporting oxygen supply pipe 20, oxygen pipe 21, and combustion-supporting pipe 22 to their respective gas sources, ensuring a tight seal and no leakage. Slide the conical fixed cylinder 3 into the flame spraying machine body 1 along the air inlet slot 2, and secure the mounting plate 18 to the spraying machine using the fixing bolts 19.

[0038] Traffic initialization

[0039] Start the motor 14 to drive the first rotating shaft 12 to rotate. Through the meshing transmission of the first gear 15, the second rotating shaft 13 is driven to rotate synchronously. The chain 16 ensures the linkage of the two shafts. The first gear 15 and the second gear 23 jointly drive the gear ring 17, so that the two coaxial rotating disks 7 rotate in opposite directions. Observe the overlapping area of ​​the control hole 9 and the extension end tube 10, and adjust it to the initial flow preset value (such as oxygen ratio of 50%).

[0040] Ignition preparation

[0041] Open the gas-supporting gas source valve, and the gas enters the rotating cavity 4 through the Y-shaped vent 5 and the vent 6. The gas intake is controlled by the sliding fit between the arc-shaped opening 8 and the extension end pipe 10. Observe the flow meter (if equipped), and finely adjust the angle of the rotating disk 7 by the motor 14 so that the overlapping area between the control hole 9 and the vent reaches the target ratio.

[0042] Spraying operation

[0043] Start the flame spraying machine body 1 to ignite the mixed gas and form a flame.

[0044] Adjust parameters according to the workpiece material:

[0045] High temperature requirement: Rotate the rotating disk 7 clockwise to increase the airflow of the control hole 9 (increasing inner diameter design).

[0046] Restorative atmosphere: The angle of the two discs is adjusted synchronously through chain 16 to reduce oxygen input.

[0047] Dynamic adjustment

[0048] Observe the flame color (e.g., blue indicates complete combustion). If it is necessary to enhance the oxidizing atmosphere, drive the first gear 15 through the motor 14 to make the rotating disk 7 rotate counterclockwise. When an oxygen-deficient flame is needed, use the precise meshing of the gear ring 17 and the gear to finely adjust the overlap between the arc-shaped opening 8 and the extension tube 10.

[0049] Shutdown maintenance

[0050] Close the air source valve, disconnect the power supply to the motor 14, remove the fixing bolts 19, pull out the conical fixed cylinder 3 along the air inlet slot 2, clean the carbon deposits in the rotating cavity 4, and check the sliding sealing surface between the extension end pipe 10 and the arc-shaped port 8.

[0051] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A combustion-supporting oxygen supply component for a flame spraying machine, characterized in that, It includes a flame spraying machine body (1) and an air inlet (2) opened on the outer side wall of the flame spraying machine body (1). A conical fixed cylinder (3) is slidably connected to the inner side wall of the air inlet (2). A combustion-supporting oxygen-passing mechanism is provided inside the conical fixed cylinder (3). The combustion-supporting oxygen supply mechanism includes a rotating cavity (4) inside a conical fixed cylinder (3). A Y-shaped ventilation channel (5) communicating with the rotating cavity (4) and two ventilation holes (6) are provided on the outer wall of the conical fixed cylinder (3). Two rotating disks (7) are rotatably connected to the inner wall of the rotating cavity (4). An arc-shaped opening (8) and multiple control holes (9) are provided on the outer wall of the rotating disks (7). An extension end pipe (10) is fixedly installed on the inner wall of one of the ventilation holes (5) and the inner wall of one of the ventilation holes (6). The outer wall of the extension end pipe (10) is slidably connected to the inner wall of the arc-shaped opening (8). The end of the extension end pipe (10) is slidably connected to the outer wall of the adjacent rotating disk (7). The outer walls of the two rotating disks (7) are slidably connected. Two fixing plates (11) are fixedly installed on the outer wall of the conical fixed cylinder (3). A first rotating shaft (12) is rotatably connected between the fixed plates (11), and a second rotating shaft (13) is rotatably connected to the outer wall of the fixed plate (11). A motor (14) is fixedly installed on the outer wall of one of the fixed plates (11). The output shaft of the motor (14) is fixedly connected to the end of the first rotating shaft (12). A first gear (15) is fixedly sleeved on the outer wall of the first rotating shaft (12) and one of the second rotating shafts (13). A second gear (23) is fixedly sleeved on the outer wall of the other second rotating shaft (13). The two first gears (15) are meshed together. The outer walls of the first rotating shaft (12) and the other second rotating shaft (13) are connected by a chain (16). A toothed ring (17) is fixedly sleeved on the outer wall of the rotating disk (7). One of the first gears (15) and the second gear (23) on the same side are meshed with the toothed ring (17).

2. The combustion-supporting oxygen supply component of a flame spraying machine according to claim 1, characterized in that, An installation plate (18) is fixedly installed on the outer wall of the conical fixed cylinder (3), and the flame spraying machine body (1) and the installation plate (18) are detachably connected by multiple fixing bolts (19).

3. The combustion-supporting oxygen supply component of a flame spraying machine according to claim 1, characterized in that, The outer wall of the conical fixed cylinder (3) is fixedly installed with a combustion-supporting oxygen pipe (20) that communicates with the Y-type ventilation channel (5).

4. The combustion-supporting oxygen supply component of a flame spraying machine according to claim 1, characterized in that, An oxygen pipe (21) communicating with one of the ventilation holes (6) is fixedly installed on the outer wall of the conical fixed cylinder (3), and a combustion-supporting pipe (22) communicating with the other ventilation hole (6) is fixedly installed on the outer wall of the conical fixed cylinder (3).

5. The combustion-supporting oxygen supply component of a flame spraying machine according to claim 1, characterized in that, Both the first pivot (12) and the other second pivot (13) have chain discs fitted on their outer walls that are compatible with the chain (16).

6. The combustion-supporting oxygen supply component of a flame spraying machine according to claim 1, characterized in that, The inner diameter of the multiple control holes (9) located on the same rotating disk (7) gradually increases in a clockwise direction.

7. The combustion-supporting oxygen supply component of a flame spraying machine according to claim 1, characterized in that, The two rotating disks (7) are arranged coaxially.

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