Uniform air inlet device of kiln

Abstract

The utility model relates to the technical field of kilns, and discloses a uniform air inlet device of a kiln, which comprises the kiln, an air inlet pipe, an air pump and a built-in control component, a guide plate in an assembly pipe is an adjusting core, after a servo motor is started, a driving roller drives a driving gear to rotate to form planetary gear transmission with peripheral connecting gears, and the air inlet pipe and the air pump are driven to rotate. Power is transmitted to the rotary drum through the fixed roller, the rotary drum drives the flow guide plate to rotate through the connecting disc and the connecting roller, the planetary gear structure disperses the driving force, torque output is uniform and stable, ball supporting is matched, transmission friction and energy consumption are reduced, and it is guaranteed that the angle of the flow guide plate is adjusted accurately. The angle of the guide plate can be continuously adjusted, a servo motor and an angle sensor are linked, working modes are automatically switched according to the real-time temperature of the kiln, and unmanned control is achieved. In the heating stage, the large-angle flow guide plate promotes gas to be quickly diffused, and heating is accelerated; in the heat preservation stage, the small-angle guide plate enables gas to uniformly flow at a low speed, and the temperature is kept stable.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, and in particular to a kiln uniform air intake device. Background Technology

[0002] In industrial production, kilns, as important thermal equipment, have a crucial impact on product quality due to the uniformity of their internal temperature field. The flow state of the gas inside the kiln directly determines the efficiency and uniformity of heat transfer; therefore, achieving uniform gas intake is a key factor in ensuring stable kiln operation and product quality.

[0003] Currently, many kilns use a simple direct-inlet pipe method for gas intake. This method easily leads to uneven gas distribution within the kiln, resulting in localized excessively high or low temperatures. This not only affects the firing quality of the product but also reduces energy efficiency. To address this issue, some kilns use fixed guide vanes in the intake pipe to adjust the airflow direction. However, the angle of these fixed guide vanes is not adjustable, making it difficult to adapt to the diverse gas flow rate and direction requirements of the kiln at different operating stages (such as heating, holding, and cooling). Although some intake devices with adjustable functions exist, they are often complex in structure, have low adjustment precision, and struggle to achieve precise control of gas flow, failing to meet the stringent requirements of modern industrial production for kiln temperature uniformity and energy efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of difficulty in uniformly distributing airflow in the kiln. Therefore, we propose a kiln uniform air intake device.

[0005] To achieve the above objectives, this application adopts the following technical solution: a kiln uniform air intake device, comprising a kiln, an air intake pipe fixedly connected to one side of the kiln, a control component built into the air intake pipe, the control component comprising an assembly pipe, the upper and lower ends of the assembly pipe being fixedly connected to the air intake pipe, a guide plate built into the assembly pipe, an installation groove formed on one side of the inner wall of the assembly pipe, a servo motor built into the installation groove, a drive roller fixedly connected to the output end of the servo motor, a drive gear fixedly connected to the end of the drive roller away from the servo motor, a plurality of connecting gears arranged around the drive gear, a rotating cylinder sleeved on the surface of the plurality of connecting gears, a plurality of evenly distributed tooth grooves formed on the inner ring wall of the rotating cylinder, the rotating cylinder meshing with the connecting gears, the connecting gears meshing with the drive gears, a connecting disc fixedly connected to the end of the rotating cylinder near the guide plate, a connecting roller fixedly connected to the side of the connecting disc away from the rotating cylinder, and a connecting roller fixedly connected to the guide plate at the end of the connecting roller away from the connecting disc.

[0006] Preferably, the surface of the kiln is equipped with multiple fixing frames.

[0007] Preferably, a support frame is fixedly connected to one side of the air inlet pipe, and the bottom of the support frame is fixedly connected to the surface of the kiln.

[0008] Preferably, an air pump is installed at the top of the air intake pipe.

[0009] Preferably, a baffle is provided on one side of the guide plate, and the baffle is fixedly connected to the inner wall of the assembly pipe.

[0010] Preferably, a mounting base is fitted onto the surface of the servo motor, and one side of the mounting base is fixedly connected to the wall of the mounting groove.

[0011] Preferably, a fixed roller is sleeved in the middle of the connecting gear, the fixed roller is rotatably connected to the connecting gear, a fixed disk is fixedly connected to the end of the fixed roller away from the connecting gear, the fixed disk is sleeved on the surface of the driving roller, the fixed disk is rotatably connected to the driving roller, and one side of the fixed disk is fixedly connected to a fixed seat.

[0012] Preferably, a plurality of evenly distributed ball bearings are installed around the fixed disk, and the side of the ball bearings away from the fixed disk contacts the inner wall of the rotating drum.

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

[0014] The kiln's uniform air intake device, built around a planetary gear transmission structure driven by a servo motor, constitutes a highly efficient air intake control system. The device consists of a kiln, air intake pipe, air pump, and built-in control components, with the guide plate inside the assembly pipe being the core of the adjustment. After the servo motor starts, the drive roller rotates the active gear, forming a planetary gear transmission with the surrounding connecting gears. Power is transmitted to the rotating drum via a fixed roller, and the rotating drum then drives the guide plate to rotate via a connecting disc and connecting roller.

[0015] The planetary gear structure disperses the driving force, ensuring uniform and stable torque output. Combined with ball bearing support, it reduces transmission friction and energy consumption, guaranteeing precise adjustment of the guide vane angle. The guide vane angle is continuously adjustable, linked to a servo motor and angle sensor, automatically switching operating modes based on the kiln's real-time temperature, achieving unmanned operation. During the heating phase, the large-angle guide vane promotes rapid gas diffusion, accelerating temperature rise; during the holding phase, the small-angle guide vane ensures slow and uniform gas flow, maintaining stable temperature. This design is suitable for precision processes such as ceramic sintering and metal heat treatment, reducing product defects and improving production quality and efficiency. Attached Figure Description

[0016] 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:

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the intake pipe structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the air intake pipe and the assembly pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the assembly tube of this utility model;

[0021] Figure 5 This is a schematic diagram of the control component structure of this utility model.

[0022] Legend: 1. Kiln; 101. Fixing frame; 2. Air inlet pipe; 201. Support frame; 202. Air pump; 3. Control components; 301. Assembly pipe; 302. Guide plate; 303. Baffle; 304. Mounting groove; 305. Servo motor; 306. Fixing base; 307. Drive roller; 308. Drive gear; 309. Connecting gear; 310. Fixing roller; 311. Fixing disc; 312. Rotary drum; 313. Ball bearing; 314. Gear groove; 315. Connecting disc; 316. Connecting roller. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1 to 5As shown, this utility model provides a technical solution for a uniform air intake device for a kiln: it includes a kiln 1, with multiple fixed brackets 101 installed on the surface of the kiln 1, an air intake pipe 2 fixedly connected to one side of the kiln 1, a control component 3 built into the air intake pipe 2, a support frame 201 fixedly connected to one side of the air intake pipe 2, the bottom of the support frame 201 fixedly connected to the surface of the kiln 1, an air pump 202 installed at the top of the air intake pipe 2, and the control component 3 includes an assembly pipe 301, the upper and lower ends of which are fixed to the air intake pipe 2. The assembly tube 301 has a built-in guide plate 302. A baffle 303 is provided on one side of the guide plate 302. The baffle 303 is fixedly connected to the inner wall of the assembly tube 301. An installation groove 304 is opened on one side of the inner wall of the assembly tube 301. A servo motor 305 is built into the installation groove 304. A fixing seat 306 is sleeved and fixed on the surface of the servo motor 305. One side of the fixing seat 306 is fixedly connected to the groove wall of the installation groove 304. A drive roller 307 is fixedly connected to the output end of the servo motor 305. A drive gear 308 is fixedly connected to the end of the drive roller 307 away from the servo motor 305. Multiple connecting gears 309 are arranged around the drive gear 308. A fixed roller 310 is sleeved in the middle of the connecting gear 309. The fixed roller 310 is rotatably connected to the connecting gear 309. A fixed disk 311 is fixedly connected to the end of the fixed roller 310 away from the connecting gear 309. The fixed disk 311 is sleeved on the surface of the drive roller 307. The fixed disk 311 is rotatably connected to the drive roller 307. One side of the fixed disk 311 is fixedly connected to the fixed seat 306. A rotating cylinder 312 is sleeved on the surface of the multiple connecting gears 309. Multiple evenly distributed tooth grooves 314 are opened on the inner ring wall of the rotating cylinder 312. The rotating cylinder 312 is meshed with the connecting gear 309. The connecting gear 309 is meshed with the drive gear 308. The uniform air intake device of the kiln 1 takes the planetary gear transmission structure driven by the servo motor 305 as the core to realize precise control of the angle of the guide plate 302, thereby flexibly adjusting the air intake flow rate and direction. After the servo motor 305 starts, its output shaft drives the drive roller 307 to rotate, and the drive gear 308 at the end of the drive roller 307 rotates accordingly. The drive gear 308 meshes with multiple connecting gears 309 around it, forming a planetary gear transmission system. The connecting gears 309 rotate due to the meshing relationship, and this unique motion is transmitted to the rotating drum 312 through the fixed roller 310. The toothed grooves 314 on the inner wall of the rotating drum 312 mesh tightly with the connecting gears 309 to ensure the stability of the transmission. The planetary gear transmission structure distributes the driving force of the servo motor 305 to multiple transmission paths. Compared with a single gear transmission method, the torque output is more uniform, and slippage is less likely to occur during operation. It is particularly suitable for working conditions that require long-term stable adjustment of the angle of the guide plate 302.

[0025] The fixed disk 311 is equipped with multiple evenly distributed balls 313 around its perimeter. The side of the balls 313 away from the fixed disk 311 contacts the inner wall of the rotating cylinder 312. The rotating cylinder 312 and the fixed disk 311 are in contact through the balls 313, which greatly reduces the frictional resistance during rotation. The ball 313 support structure between the fixed disk 311 and the rotating cylinder 312 further reduces energy loss during transmission and ensures the accuracy of angle adjustment.

[0026] A connecting plate 315 is fixedly connected to one end of the rotating drum 312 near the guide plate 302. A connecting roller 316 is fixedly connected to the side of the connecting plate 315 away from the rotating drum 312. The end of the connecting roller 316 away from the connecting plate 315 is fixedly connected to the guide plate 302. The rotating drum 312 then transmits the rotational motion to the guide plate 302 through the connecting plate 315 and the connecting roller 316, realizing the rotation of the guide plate 302 around its axis and completing the adjustment of the tilt angle. During the heating stage of the kiln 1, the guide plate 302 is adjusted to a larger tilt angle. At this time, the obstruction effect of the guide plate 302 on the airflow is enhanced, forcing the gas to diffuse rapidly in all directions, thereby accelerating the overall temperature rise rate in the kiln 1. During the heat preservation stage, the angle of the guide plate 302 is reduced, the resistance of the gas passing through the guide plate 302 is reduced, and it can diffuse into the kiln 1 evenly at a lower flow rate, avoiding local overheating or undercooling and maintaining the stability of the temperature field in the kiln 1.

[0027] The angle of the guide vane 302 can be continuously adjusted within a certain range. In conjunction with the servo motor 305 and feedback from the angle sensor, it can automatically switch between different operating modes based on the real-time temperature data of the kiln 1, eliminating the need for frequent manual intervention. The planetary gear transmission boasts high transmission efficiency, effectively reducing energy consumption. Through precise adjustment of the guide vane 302's angle, this device can significantly improve the uniformity of airflow distribution within the kiln 1. It is particularly suitable for processes requiring extremely high temperature uniformity, such as ceramic sintering and metal heat treatment, greatly reducing product defects caused by uneven temperature and improving product quality.

[0028] 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 uniform air intake device for a kiln, characterized in that, The system includes a kiln, with an air inlet pipe fixedly connected to one side. The air inlet pipe houses a control component, which includes an assembly pipe. The assembly pipe is fixedly connected to the air inlet pipe at both ends and contains a guide plate. An installation groove is formed on one side of the inner wall of the assembly pipe, housing a servo motor. A drive roller is fixedly connected to the output end of the servo motor. A drive gear is fixedly connected to the end of the drive roller away from the servo motor. Multiple connecting gears are arranged around the drive gear, and a rotating cylinder is fitted onto the surface of each connecting gear. Multiple evenly distributed toothed grooves are formed on the inner wall of the rotating cylinder. The rotating cylinder meshes with the connecting gears, which in turn mesh with the drive gear. A connecting disc is fixedly connected to the end of the rotating cylinder near the guide plate, and a connecting roller is fixedly connected to the side of the connecting disc away from the rotating cylinder. The end of the connecting roller away from the connecting disc is fixedly connected to the guide plate.

2. The kiln uniform air intake device according to claim 1, characterized in that: The surface of the kiln is equipped with multiple fixed brackets.

3. The kiln uniform air intake device according to claim 1, characterized in that: A support frame is fixedly connected to one side of the air inlet pipe, and the bottom of the support frame is fixedly connected to the surface of the kiln.

4. The kiln uniform air intake device according to claim 1, characterized in that: An air pump is installed at the top of the air intake pipe.

5. The kiln uniform air intake device according to claim 1, characterized in that: A baffle is provided on one side of the guide plate, and the baffle is fixedly connected to the inner wall of the assembly pipe.

6. The kiln uniform air intake device according to claim 1, characterized in that: A mounting base is fixedly fitted onto the surface of the servo motor, and one side of the mounting base is fixedly connected to the wall of the mounting groove.

7. The kiln uniform air intake device according to claim 1, characterized in that: A fixed roller is sleeved in the middle of the connecting gear. The fixed roller is rotatably connected to the connecting gear. A fixed disk is fixedly connected to the end of the fixed roller away from the connecting gear. The fixed disk is sleeved on the surface of the driving roller. The fixed disk is rotatably connected to the driving roller. One side of the fixed disk is fixedly connected to a fixed seat.

8. The kiln uniform air intake device according to claim 7, characterized in that: Multiple evenly distributed ball bearings are installed around the fixed disk, and the side of the ball bearings away from the fixed disk contacts the inner wall of the rotating drum.

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