Gas inlet structure for a nitriding furnace

Abstract

The utility model discloses a kind of for the gas intake structure of nitriding furnace, it is related to nitriding furnace field, including mixed subassembly, the upper portion of mixed subassembly is provided with rotary type adjusting assembly, the upper portion rotation of rotary type adjusting assembly is equipped with filtering type air intake subassembly;Rotary type adjusting assembly contains fixed pipe, by rotary type adjusting assembly internal structure and filtering type air intake subassembly internal structure cooperate, to adjust the control of device air intake amount;Mixed subassembly contains mixed box, by mixed subassembly internal structure operation uses.The gas intake structure for the nitriding furnace, by servo motor starting driving gear rotation to drive the rotation of gear ring meshed with gear, when gear ring rotates, second blocking plate positional relationship can be changed, to adjust the gap size between first blocking plate, to control air intake amount, reach device when using can improve the control of device to air intake amount, to enhance device use effect.

Description

Technical Field

[0001] This utility model relates to the field of nitriding furnace technology, specifically to an air intake structure for a nitriding furnace. Background Technology

[0002] The gas inlet structure of the nitriding furnace is a core component for ensuring nitriding quality and must be adapted to the furnace type and process requirements. It typically consists of a main inlet pipe, branch pipes, outlet holes, and control components. Through multi-point uniform layout, gradient aperture design, and flow field optimization, it achieves balanced gas concentration and flow velocity within the furnace, avoiding dead zones and eddies.

[0003] For example, a nitriding furnace inlet pipe control system with announcement number CN209836282U includes a nitriding furnace body, a control box, a transfer box, a control panel, an electrical cabinet, and a motor. A bracket is fixedly installed on the top of the nitriding furnace body, and a motor is vertically fixedly installed on the top of the bracket by welding. The output end of the motor passes through the bracket and is fixedly connected to a rotating shaft extending into the interior of the nitriding furnace body. This device solves the problems of existing inlet pipes being too far from the main furnace, having too long pipelines, and being inconvenient to operate.

[0004] Most of the existing technologies mentioned above improve the overall structure. However, while the existing gas inlet structure of the nitriding furnace has solved the problem of being far from the main furnace during operation, the gas inlet volume is mostly adjusted by manually controlled valves in actual use. This operation method relies entirely on human experience to control the gas inlet volume, which can easily lead to poor control over the gas inlet volume and thus affect the quality of the subsequent mixed gas. Utility Model Content

[0005] The purpose of this invention is to provide an air intake structure for a nitriding furnace, so as to solve the problem mentioned in the background art that the air intake structure of the existing nitriding furnace is inconvenient to adjust and control during use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air intake structure for a nitriding furnace, comprising a mixing component, a rotary adjustment component disposed above the mixing component, and a filter air intake component rotatably mounted above the rotary adjustment component; the rotary adjustment component includes a fixed pipe, and the air intake volume of the device is adjusted and controlled by the cooperation between the internal structure of the rotary adjustment component and the internal structure of the filter air intake component; the mixing component includes a mixing chamber, and is operated by means of the internal structure of the mixing component, thereby mixing the incoming gas while facilitating the dispersion and exhaust of the gas.

[0007] Furthermore, an agitator is rotatably mounted inside the mixing chamber, and a drive shaft is fixedly mounted on the side end of the agitator.

[0008] Furthermore, a one-way valve is threadedly installed on the top of the mixing chamber, and a control handle is rotatably installed on the side of the one-way valve. The control handle is connected to the internal baffle of the one-way valve, and a connecting pipe is fixedly installed on the top of the one-way valve.

[0009] Furthermore, a bottom sealing plate is snapped onto the bottom of the mixing chamber, a diffusion box is fixedly installed below the bottom sealing plate, and a dispersion plate is fixedly installed below the diffusion box.

[0010] Furthermore, a fixing pipe is fixedly installed above the mixing chamber, a limit ring is fixedly installed above the fixing pipe, and a first baffle plate is fixedly installed on the inner wall of the fixing pipe.

[0011] Furthermore, a bracket is fixedly installed on the outer surface of the fixed tube, a servo motor is fixedly installed below the bracket, a gear is rotatably installed above the bracket, and the gear is connected to the output shaft above the servo motor via a spline.

[0012] Furthermore, the filter-type air intake assembly includes an air intake pipe, and a toothed ring is rotatably mounted below the air intake pipe. The toothed ring is rotatably mounted above the fixed pipe via a limiting ring.

[0013] Furthermore, a second blocking plate is fixedly installed inside the gear ring, the second blocking plate is in contact with the first blocking plate, and the gear ring meshes with the gear.

[0014] Furthermore, the outer surface of the air intake pipe is engraved with thread lines, and a dust cover is threaded onto the top of the air intake pipe via the thread lines.

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

[0016] The air intake structure for the nitriding furnace is started by a servo motor to drive the gear to rotate, which in turn drives the gear ring meshing with the gear to rotate. When the gear ring rotates, the position of the second baffle plate changes, thereby adjusting the size of the gap between the second baffle plate and the first baffle plate, thus controlling the air intake volume. This improves the control of the air intake volume during use, thereby enhancing the performance of the device.

[0017] Furthermore, hydrogen and nitrogen are introduced into the mixing chamber through connecting pipes, one-way valves, and control handles. External gas is then introduced into the mixing chamber through a rotary adjustment assembly and a filter-type air inlet assembly. Finally, a power source drives the drive shaft to rotate, which in turn drives the agitator to rotate within the mixing chamber, thereby mixing the gas inside. The gas is then dispersed and discharged through a diffusion box and a dispersion plate. This process improves the degree of gas mixing and facilitates the dispersion and discharge of gas during use, thus enhancing the efficiency of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the hybrid component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the diffusion box structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixed tube structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the rotating adjustment component structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the filter-type air intake assembly of this utility model.

[0024] In the diagram: 1. Mixing assembly; 11. Mixing chamber; 12. Stirrer; 13. Drive shaft; 14. Connecting pipe; 15. One-way valve; 16. Control handle; 17. Bottom sealing plate; 18. Diffusion box; 19. Dispersion plate; 2. Rotary adjustment assembly; 21. Fixing pipe; 22. Limiting ring; 23. First baffle plate; 24. Bracket; 25. Servo motor; 26. Gear; 3. Filter-type air intake assembly; 31. Air intake pipe; 32. Threaded wire; 33. Dust cover; 34. Gear ring; 35. Second baffle plate. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figure 1 - Figure 6An air intake structure for a nitriding furnace is disclosed to address the problem that existing nitriding furnace air intake structures often cannot control the air intake volume. The structure includes a mixing component 1, a rotary adjustment component 2 above the mixing component 1, and a filter-type air intake component 3 rotatably mounted above the rotary adjustment component 2. The rotary adjustment component 2 includes a fixed pipe 21, and the air intake volume is adjusted and controlled by the internal structure of the rotary adjustment component 2 cooperating with the internal structure of the filter-type air intake component 3. The mixing component 1 includes a mixing chamber 11, which is operated through its internal structure to mix the incoming gas while facilitating gas dispersion and exhaust. A fixed pipe 21 is fixedly mounted above the mixing chamber 11, and a filter-type air intake component 3 is fixedly mounted above the fixed pipe 21. The inner wall of the fixed tube 21 is fixedly mounted with a first baffle plate 23, and the outer surface of the fixed tube 21 is fixedly mounted with a bracket 24. A servo motor 25 is fixedly mounted below the bracket 24, and a gear 26 is rotatably mounted above the bracket 24. The gear 26 is connected to the output shaft above the servo motor 25 via a spline. The filter-type air intake assembly 3 includes an air intake pipe 31, and a gear ring 34 is rotatably mounted below the air intake pipe 31. The gear ring 34 is rotatably mounted above the fixed tube 21 via a limit ring 22. A second baffle plate 35 is fixedly mounted inside the gear ring 34. The second baffle plate 35 fits against the first baffle plate 23. The gear ring 34 meshes with the gear 26. The outer surface of the air intake pipe 31 is engraved with a thread line 32, and a dust cover 33 is threaded onto the upper part of the air intake pipe 31 via the thread line 32.

[0027] like Figure 1 - Figure 6 As shown, when the air intake of the device needs to be adjusted, the user starts the servo motor 25. The servo motor 25 drives the gear 26 above the bracket 24 to rotate. The rotation of the gear 26 drives the gear ring 34 that meshes with it to rotate. The rotation of the gear ring 34 can drive the second baffle plate 35 inside it to rotate, thereby cooperating with the first baffle plate 23 in the lower fixed pipe 21, thereby adjusting the size of the device's air intake. After adjusting the size of the air intake, the air pump inside the air intake pipe 31 is started. The air pump draws external gas into the air intake pipe 31 from above, and then passes through the gap between the second baffle plate 35 and the first baffle plate 23 into the mixing chamber 11 for further processing. When external gas enters, the dust cover 33 above the air intake pipe 31 will filter the external gas, thereby preventing impurities from entering the device and causing blockage. This allows the device to adjust the air intake size during use, thereby improving the flexibility of the device.

[0028] Example 2: Figure 1 - Figure 3The technical solution shown, based on Embodiment 1, further discloses the following to address the problem of uneven mixing of external gas with hydrogen and nitrogen during use of the existing nitriding furnace inlet structure: a stirrer 12 is rotatably installed inside the mixing chamber 11, a drive shaft 13 is fixedly installed on the side of the stirrer 12, a one-way valve 15 is threadedly installed on the top of the mixing chamber 11, a control handle 16 is rotatably installed on the side of the one-way valve 15, the control handle 16 is connected to the internal baffle of the one-way valve 15, a connecting pipe 14 is fixedly installed on the top of the one-way valve 15, a bottom sealing plate 17 is snapped on the bottom of the mixing chamber 11, a diffusion box 18 is fixedly installed below the bottom sealing plate 17, and a dispersion plate 19 is fixedly installed below the diffusion box 18.

[0029] like Figure 1 - Figure 3 As shown, the user connects the delivery pipe to the side of the connecting pipe 14, then rotates the control handle 16 to open the one-way valve 15, and then, with the help of the delivery pipe, delivers hydrogen and nitrogen into the mixing chamber 11. With the cooperation of the rotary adjustment component 2 and the filter intake component 3, external gas is drawn into the mixing chamber 11 to contact the gas inside the mixing chamber 11. Then, a power source is connected to the side of the drive shaft 13, which drives the drive shaft 13 to rotate, thereby driving the stirrer 12 to rotate inside the mixing chamber 11, thus promoting the mixing of the gas inside the mixing chamber 11. After the gas is mixed, the valve inside the diffusion box 18 is opened to disperse the gas through the opening inside the dispersion plate 19 and introduce it into the nitriding furnace below. This achieves the goal of improving the mixing degree of multiple gases during the intake of the device, thereby improving the efficiency of the device.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An air intake structure for a nitriding furnace, comprising a mixing component (1), a rotary adjustment component (2) disposed above the mixing component (1), and a filter air intake component (3) rotatably mounted above the rotary adjustment component (2). Its features are: The rotary adjustment assembly (2) includes a fixed tube (21). The internal structure of the rotary adjustment assembly (2) cooperates with the internal structure of the filter air intake assembly (3) to adjust and control the air intake of the device. The mixing component (1) includes a mixing chamber (11) and is operated through the internal structure of the mixing component (1) to mix the incoming gas while facilitating the dispersion and exhaust of the gas.

2. The air inlet structure for a nitriding furnace according to claim 1, characterized in that: A stirrer (12) is rotatably mounted inside the mixing tank (11), and a drive shaft (13) is fixedly mounted on the side end of the stirrer (12).

3. The air inlet structure for a nitriding furnace according to claim 1, characterized in that: A one-way valve (15) is threadedly installed on the top of the mixing tank (11). A control handle (16) is rotatably installed on the side of the one-way valve (15). The control handle (16) is connected to the internal baffle of the one-way valve (15). A connecting pipe (14) is fixedly installed on the top of the one-way valve (15).

4. The air inlet structure for a nitriding furnace according to claim 3, characterized in that: A bottom sealing plate (17) is snapped onto the bottom of the mixing box (11), a diffusion box (18) is fixedly installed below the bottom sealing plate (17), and a dispersion plate (19) is fixedly installed below the diffusion box (18).

5. The air inlet structure for a nitriding furnace according to claim 1, characterized in that: A fixing pipe (21) is fixedly installed above the mixing box (11), a limit ring (22) is fixedly installed above the fixing pipe (21), and a first baffle plate (23) is fixedly installed on the inner wall of the fixing pipe (21).

6. The air inlet structure for a nitriding furnace according to claim 5, characterized in that: A bracket (24) is fixedly installed on the outer surface of the fixed tube (21). A servo motor (25) is fixedly installed below the bracket (24). A gear (26) is rotatably installed above the bracket (24). The gear (26) is connected to the output shaft above the servo motor (25) via a spline.

7. The air inlet structure for a nitriding furnace according to claim 6, characterized in that: The filter-type air intake assembly (3) includes an air intake pipe (31), and a toothed ring (34) is rotatably mounted below the air intake pipe (31). The toothed ring (34) is rotatably mounted above the fixed pipe (21) via a limiting ring (22).

8. The air inlet structure for a nitriding furnace according to claim 7, characterized in that: The toothed ring (34) has a second baffle plate (35) fixedly installed inside it. The second baffle plate (35) is in contact with the first baffle plate (23). The toothed ring (34) meshes with the gear (26).

9. The air inlet structure for a nitriding furnace according to claim 8, characterized in that: The outer surface of the air intake pipe (31) is engraved with a thread line (32), and a dust cover (33) is threaded onto the upper part of the air intake pipe (31) through the thread line (32).

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