Heating and stirring system for incubator and working method of heating and stirring system

Abstract

The invention provides a heating and stirring system for an incubator and a working method of the heating and stirring system. The problems that the incubator is large in temperature range and uneven in temperature field are solved. According to the technical scheme, the incubator comprises an incubator box, a heating assembly and a stirring assembly. The stirring assembly comprises a support assembly, a five-spoke belt wheel, stirring blades, a bearing assembly, a V-shaped belt and a motor assembly. A cross beam is arranged on the support assembly, a bearing assembly is fixedly arranged on the cross beam, five-spoke belt wheels are fixedly arranged at the two ends of the bearing assembly respectively, and a plurality of stirring blades are mounted on each five-spoke belt wheel; the heating assembly is arranged on the bracket assembly; the motor assembly is fixedly arranged on the outer surface of the top of the incubator box and comprises a motor and a small belt wheel, the small belt wheel is fixed to the output end of the motor and connected with one of the five-spoke belt wheels through the V-shaped belt, and when the motor works, the small belt wheel and the five-spoke belt wheels move synchronously.

Description

Technical Field

[0001] This invention belongs to the technical field of incubation equipment, and particularly relates to a heating and stirring system for an incubator and its working method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Hatching technology has a wide and important application in modern aquaculture, biological research and educational experiments. Its core is to artificially simulate the natural incubation conditions of oviparous animals and precisely control key parameters such as temperature, humidity and egg turning frequency so that fertilized eggs can develop into living organisms in a specific environment over a certain period of time. This technology has become one of the core technologies in breeding farms, professional hatcheries, biotechnology company laboratories and school research laboratories. In large-scale farming and professional hatching scenarios, incubators are widely used as core equipment to achieve efficient batch hatching of fertilized eggs. These incubators, through their built-in control systems, can regulate key environmental indicators such as temperature, humidity, ventilation efficiency, egg-turning rhythm, and hygiene and disinfection status to create an incubation environment that meets the developmental needs of the fertilized eggs. However, in actual batch incubation, the uniformity of the environment inside the incubator directly determines the uniformity of egg hatching and the overall hatching rate. Current incubators still have significant deficiencies in controlling environmental uniformity. Specifically, due to structural design limitations, the air circulation in the eight corner areas of the incubator is extremely poor, resulting in suboptimal environmental parameters such as temperature, humidity, wind speed, and air quality in these areas. The temperature difference problem is particularly prominent—the temperature difference in some incubators can reach as high as 2.5℃ (generally, the smaller the temperature difference, the more uniform the temperature distribution inside the machine, which is more conducive to egg hatching), creating an uneven temperature field where the temperature in the central area is higher and the temperature in the four corner areas is lower. This unevenness in the internal environment directly leads to inconsistent hatching results for eggs in different locations. Some eggs in harsh environments cannot obtain stable and suitable development conditions and therefore cannot develop normally, ultimately resulting in a low overall hatching rate for the entire batch of eggs. This not only reduces the economic benefits of hatching but also increases the waste of egg resources, which is detrimental to the stable development of the large-scale hatching industry. Summary of the Invention In order to solve at least one of the technical problems existing in the background art, the first aspect of the present invention provides a heating and stirring system for an incubator and its working method, which solves the problems of large temperature difference and uneven temperature field in the incubator.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: The first aspect of the present invention provides a heating and stirring system for an incubator, including an incubator housing, a heating component and a stirring component, wherein the stirring component includes a first support component and a second support component, a five-spoke pulley, stirring blades, a bearing component, a V-belt and a motor component; The heating assembly includes a first heating tube and a second heating tube; The top of the first support assembly and the second support assembly are fixed to the top of the incubator housing, and the bottom of their components are fixed to the ground. A crossbeam is fixedly installed between the first support assembly and the second support assembly; A bearing assembly is fixedly installed on the crossbeam, and five-spoke pulleys are fixedly installed at both ends of the bearing assembly. Multiple stirring blades are installed on each of the five-spoke pulleys. The first heating element and the second heating element are respectively disposed on the first support assembly and the second support assembly; The motor assembly is fixedly installed on the top outer surface of the incubator housing. It includes a motor and a small pulley. The small pulley is fixed to the output end of the motor and is connected to one of the five-spoke pulleys via the V-belt. When the motor is working, the small pulley and the five-spoke pulley move synchronously.

[0005] In one embodiment, the support assembly consists of columns and beams. Two columns are vertically fixed to the ground, and the top of each column is fixed to the inner side of the top of the incubator housing. Each beam is vertically mounted on two columns at both ends, forming an H-shape overall.

[0006] In one embodiment, the five-spoke pulley includes a rim, spokes, and a hub, wherein the hub is connected by multiple spokes, and there are five spokes. Each of the spokes has an I-shaped boss, and each end of the I-shaped boss has a fixing hole for fixing the stirring blade.

[0007] In one embodiment, the stirring blade is L-shaped overall.

[0008] In one embodiment, the side of the stirring blade that contacts the five-spoke pulley is provided with two blade fixing holes, and the stirring blade is fixed to the five-spoke pulley with two bolts.

[0009] In one embodiment, the motor assembly specifically includes a motor, a motor bracket, and a small pulley, which is located directly above the bracket assembly; The motor is mounted on a motor bracket, which is fixedly mounted on the top outer surface of the incubator housing.

[0010] The stirring assembly also includes a pulley tensioning device, which is used to adjust the tension of the V-belt.

[0011] In one embodiment, the pulley tensioning device consists of several bracket pads with elongated holes, which are placed at the bottom of the motor bracket to raise the height of the motor.

[0012] In one embodiment, the belt tensioning device is a tensioning wheel fixed to the support assembly column, located on the outer side of the slack side of the V-belt.

[0013] In one embodiment, the pulley tensioning device includes a front clamping plate, a rear clamping plate, a pressure block assembly, a set screw, and a bolt assembly; The front and rear clamping plates have central openings for accommodating bearing assemblies. The bearing assemblies are fitted into the central openings of the clamping plates. The front clamping plate is fixed to a crossbeam by a bolt assembly, and the rear clamping plate is fixed to another crossbeam by a bolt assembly. The pressure block assembly is disposed on top of the bearing assembly; the crossbeam on top of the bearing assembly is fixed to the pressure block assembly by the set screw, and the pressure block assembly transmits axial force to the bearing assembly.

[0014] The second aspect of the present invention provides a method for operating a heating and stirring system for an incubator, which employs a heating and stirring system for an incubator provided in the first aspect of the present invention, wherein the heating component and the stirring component are arranged in a cross shape in space; The motor drives the stirring blades to rotate, forming a double-sided butterfly-shaped airflow field inside the incubator; the heat generated by the heating component is blown to various locations inside the incubator.

[0015] The beneficial effects of this invention are: 1. This invention utilizes a cross-shaped spatial arrangement between the heating and stirring components, resulting in excellent space utilization. A motor drives the stirring blades to rotate, creating a double-sided butterfly-shaped airflow field within the incubator. Simultaneously, the heat generated by the heating components is distributed to all parts of the machine, thus completing heat transfer and solving the problems of large temperature differences and uneven temperature distribution in incubators.

[0016] 2. The five-spoke pulley in this invention features five spokes. While ensuring overall pulley strength, it employs a hollowed-out and rounded corner design to reduce weight. Each spoke has an I-shaped boss, which serves two purposes: securing the stirring blades and increasing the contact area with the blades to prevent breakage due to stress concentration during high-speed rotation. The central hub is widened and thickened to ensure sufficient strength. The spokes and rim are smoothly connected by a beveled surface, and the central hub and spokes are smoothly connected by a shaped curved surface, making the pulley structure seamless and more aesthetically pleasing.

[0017] 3. The stirring blade of this invention is L-shaped overall, with a simple structure and convenient processing. This design not only improves the machinability of the blade, but also enables each surface and position of the blade to perform its corresponding function and role. 4. This invention combines a five-spoke pulley with 10 L-shaped stirring blades (5 blades on each side), which can generate a larger air volume at the same rotation speed, so that there is a certain air flow in the dead corners of the incubator, thereby reducing the temperature difference of the whole machine and improving the hatching rate at the edge of the machine.

[0018] 5. This invention proposes three different methods to achieve the tensioning effect of V-belts. Users can choose the appropriate solution according to the site environment and requirements. The operation is simple and highly reliable.

[0019] 6. This invention primarily increases the internal airflow through the innovative combination of a five-spoke pulley and stirring blades, thereby indirectly increasing the circulation of temperature, humidity, O2, and CO2, and improving the overall incubation uniformity (the temperature difference under no-load conditions is only 1.42℃). Even eggs in dead corners can achieve good incubation results. Furthermore, to enhance the effectiveness of this heating and stirring system, the four corners of the incubator can be designed with chamfered transitions. This design significantly reduces the lack of circulation in horizontal dead corners, making the butterfly-shaped airflow within the machine smoother and correspondingly increasing the hatching rate.

[0020] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of a heating and stirring system for an incubator. Figure 2 This is a schematic diagram of a five-spoke belt pulley structure for a heating and stirring system used in an incubator. Figure 3 This is a schematic diagram of an L-shaped stirring blade structure for a heating and stirring system used in an incubator. Figure 4 A side view of an L-shaped stirring blade in a heating and stirring system for an incubator; Figure 5 This is the first type of belt tensioning structure for a heating and stirring system in an incubator; Figure 6 yes Figure 5 An enlarged view at point A of the first structure of the belt tensioning structure of a heating and stirring system for an incubator shown; Figure 7 This is a second type of belt tensioning structure for a heating and stirring system in an incubator; Figure 8 This is a third type of belt tensioning structure for a heating and stirring system in an incubator; Figure 9 This is a schematic diagram of the butterfly-shaped airflow field inside an incubator that uses a heating and stirring system for incubators.

[0023] The components include: 1. Incubator housing; 2. Heating assembly; 3. Stirring assembly; 4. First support assembly; 5. First support assembly; 6. Five-spoke pulley; 7. Stirring blade; 71. Wide side; 72. Narrow side; 73. Blade fixing hole; 8. Bearing assembly; 9. V-belt; 10. Motor assembly; 13. Column; 14. Crossbeam; 15. I-shaped boss; 16. Hub; 17. Flange; 18. Spoke; 19. Motor; 20. Motor bracket; 21. Bracket gasket; 22. Tensioning wheel; 23. Set screw; 24. Pressure block assembly; 25. Bolt assembly; 26. Front clamping plate; 27. Rear clamping plate; 29. ​​Column; 30. Pulley tensioning device. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] In this invention, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only to facilitate the description of the structural relationships of the various components or elements of this invention and do not specifically refer to any component or element in this invention. They should not be construed as limiting the invention.

[0028] In this invention, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this invention based on the specific circumstances, and they should not be construed as limitations on the invention.

[0029] Example 1 This embodiment provides a heating and stirring system for an incubator, such as... Figure 1 As shown, the incubator includes an incubator housing 1, a heating assembly 2, and a stirring assembly 3. The stirring assembly 3 includes a first support assembly 4, a second support assembly 5, a five-spoke pulley 6, stirring blades 7, a bearing assembly 8, a V-belt 9, and a motor assembly 10. The heating assembly 2 includes a first heating element and a second heating element. The tops of the first support assembly 4 and the second support assembly 5 are fixed to the top of the incubator housing, and their bottoms are fixed to the ground. A crossbeam 14 is fixed between the first support assembly 4 and the second support assembly 5. A bearing assembly 8 is fixed on the crossbeam 14, and five-spoke pulleys 6 are fixed at both ends of the bearing assembly 8. Multiple stirring blades 7 are installed on each five-spoke pulley 6. The first heating element and the second heating element are respectively mounted on the first support assembly 4 and the second support assembly 5. The motor assembly 10 is fixed on the outer surface of the top of the incubator housing and includes a motor 19 and a small pulley. The small pulley is fixed to the output end of the motor 19 and is connected to one of the five-spoke pulleys 6 via the V-belt 9. When the motor 19 operates, the small pulley and the five-spoke pulley 6 move synchronously.

[0030] In a specific implementation, the support assembly consists of columns 13 and crossbeams 14. The two columns 13 are vertically fixed to the ground, and the top of the columns 13 is fixed to the inner side of the top of the incubator box. Each crossbeam 14 is vertically mounted on the two columns 13 at both ends, forming an H-shape and serving as a support.

[0031] In a specific implementation, a bearing assembly 8 is fixedly installed on the crossbeam 14 of the support assembly, and five-spoke pulleys 6 are fixedly installed at both ends of the bearing assembly 8. The bearing connector can make the two five-spoke pulleys 6 move synchronously.

[0032] In specific implementation methods, such as Figure 2As shown, the five-spoke pulley 6 includes a rim 17, spokes 18, and a hub 16. The hub 16 is connected to the rim 17 via multiple spokes 18. In this embodiment, five spokes 18 are evenly distributed. A hollow and rounded design is used to reduce the weight of the pulley while ensuring its overall strength. Each spoke 18 has an I-shaped boss 15, with a fixing hole at each end for fixing the stirring blades 7. This also increases the contact area with the blades, preventing stress concentration and breakage during high-speed rotation. The central hub 16 is widened and thickened to ensure sufficient strength for connection with the bearing assembly 8 without cracking. The spokes 18 and rim 17 are connected by a smooth bevel, and the central hub 16 and spokes are connected by a smooth curved surface, making the pulley structure seamless. Furthermore, the large pulley is integrally formed by pressure casting, resulting in a simple structure, stable quality, and rounded edges for a beautiful appearance.

[0033] In a specific implementation, the number of stirring blades 7 installed on each five-spoke pulley 6 can be five, such as... Figure 4 As shown, each stirring blade 7 includes a wide side 71 and a narrow side 72, which are vertically fixed, forming an L-shape overall. This design is simple and easy to manufacture. Figure 3 As shown, the side of the stirring blade 7 that contacts the five-spoke pulley 6 has two blade fixing holes 73, and the stirring blade 7 is fixed to the five-spoke pulley 6 with two bolts. The stirring blade 7 is wider near the center of rotation and narrower as it moves away from the center of rotation; the opposite is true on the other side perpendicular to it, that is, it is narrower closer to the center of rotation and wider as it moves away from the center of rotation. Then, the size and rotational speed of the blade are determined by simulating the wind speed field and the overall temperature field of the machine under the same heating power, thus ensuring its uniqueness.

[0034] During rotation, the stirring blade 7 experiences greater force and less airflow closer to the center, while the force decreases but the wind resistance increases closer to the outer edge, meaning the airflow transmitted is greatest there. The wind resistance at the outer edge primarily originates from the side of the blade perpendicular to the rotation direction. Therefore, the side of the blade in contact with the pulley experiences the greatest force and requires two bolts for connection. To increase strength, the side closer to the center is designed to be wider, while the side further away from the center, where airflow is less and force is less, can be designed to be narrower. The opposite is true for the perpendicular side, which is narrower closer to the center and wider further away. This design improves the blade's machinability and ensures that each surface and position of the blade performs its corresponding function and role. This invention provides a design with a five-spoke pulley 6 paired with 10 L-shaped stirring blades 7 (5 blades on each side). Driven by a motor 19 of the same power and pole number, it can generate a large air intake and exhaust volume, which can quickly and evenly distribute water molecules, oxygen, and heat generated by the heating element 2 inside the machine, thus making the temperature and humidity field of the whole machine more uniform. The temperature difference under no-load is only 1.42℃. In addition, even eggs in dead corners can have a good hatching effect in the high wind speed and large ventilation environment, thereby improving the overall hatching rate of the machine.

[0035] In a specific embodiment, the motor assembly 10 includes a motor 19, a motor bracket 20, and a small pulley, which is located directly above the bracket assembly. The motor 19 is mounted on the motor bracket 20, and the motor bracket 20 is fixedly mounted on the top outer surface of the incubator housing. The top of the incubator housing has an opening for the V-belt 9 to pass through.

[0036] A small pulley is fixed to the output end of motor 19, and the small pulley is connected to a five-spoke pulley 6 via a V-belt 9. When motor 19 is working, the output end of motor 19 drives the small pulley to rotate, and the small pulley transmits power to one of the five-spoke pulleys 6 through the V-belt 9, driving the five-spoke pulley 6 to rotate. Due to the bearing assembly 8, the two five-spoke pulleys 6 rotate synchronously, driving the stirring blades 7 to rotate. Optionally, motor 19 can be an AC asynchronous motor.

[0037] In a specific embodiment, the stirring assembly 3 also includes a pulley tensioning device 30, which is a device that can adjust the tension of the V-belt 9.

[0038] Optional, such as Figure 5 and Figure 6 As shown, the belt tensioning device 30 consists of several bracket shims 21 with elongated holes. These shims are placed at the bottom of the motor bracket 20, raising the height of the motor 19. This allows adjustment of the shaft center position (motor 19 height) of the small pulley on the motor 19, thereby adjusting the distance between the five-spoke pulleys 6 and achieving the tensioning of the V-belt 9. The belt tension is adjusted by regulating the height of the motor 19, while the positions of the five-spoke pulleys 6 and the stirring blades 7 remain unchanged, thus not affecting the airflow temperature field or wind speed field inside the machine.

[0039] Optional, such as Figure 7 As shown, the belt tensioning device 30 is a tensioning wheel 22 fixed on the support column 13, located on the outer side of the slack side of the V-belt 9. It uses its own elasticity to keep the V-belt 9 at a suitable tension, eliminating the need for manual adjustment. The tensioning wheel 22 automatically tensions the belt, requiring no manual intervention throughout the entire process.

[0040] Optional, such as Figure 8As shown, the pulley tensioning device 30 consists of a front clamping plate 26, a rear clamping plate 27, a pressure block assembly 24, a set screw 23, and a bolt assembly 25. The front clamping plate 26 and the rear clamping plate 27 have central openings to accommodate the bearing assembly 8, which is secured within the central holes of the clamping plates. The front clamping plate 26 is fixed to a crossbeam 14 by the bolt assembly 25, and the rear clamping plate 27 is fixed to another crossbeam 14 by the bolt assembly 25. The bearing assembly 8 is actually fixed to the front clamping plate 26 and the rear clamping plate 27, which are collectively fixed to the two crossbeams 14 by four bolts. Each bolt passes sequentially through the front clamping plate 26, the crossbeam 14, and the rear clamping plate 27, thus securing the bearing assembly 8. Later, considering the tensioning issue, a pressure block assembly 24 was added between the front clamping plate 26 and the rear clamping plate 27, and the four bolt holes of the front clamping plate 26 and the rear clamping plate 27 were upgraded from round holes to oblong holes. At the same time, a set screw 23 was added to the upper crossbeam to facilitate the up and down adjustment of the bearing assembly 8.

[0041] The pressure block assembly 24 is mounted on top of the bearing assembly 8. The pressure block assembly 24 is fixed to the crossbeam 14 at the top of the bearing assembly 8 by set screws 23. The pressure block assembly 24 transmits axial force to the bearing assembly 8, ensuring a constant downward force on the axis of the five-spoke pulley, thus tensioning the belt. There is no need for manual intervention by climbing to the top of the machine to adjust the position of the motor 19; simply loosen the four bolts, adjust the set screws 23 on the bracket assembly, and finally tighten the four bolts. Users can choose the appropriate solution based on their site environment and needs; the operation is simple and offers high flexibility.

[0042] In a specific embodiment, the heating assembly 2 further includes flanges. The first heating pipe and the second heating pipe are respectively connected to the column 13 of the support assembly via flanges. The first heating pipe and the second heating pipe are symmetrically arranged and located between the two sets of stirring blades 7. This alternating layout saves space and allows the heat from the heating pipes to be evenly transferred by the high-speed rotation of the two sets of blades. Optionally, the first heating pipe and the second heating pipe are made of stainless steel.

[0043] Example 2 This embodiment provides a working method for a heating and stirring system for an incubator. It adopts a heating and stirring system for an incubator from the first embodiment, in which the heating component and the stirring component are arranged in a cross shape in space, which has good space utilization.

[0044] The motor drives the stirring blades to rotate, creating a double-sided butterfly-shaped airflow field inside the incubator. For example... Figure 9 As shown, a butterfly-shaped airflow field refers to the airflow field generated after the system is running, which, when viewed from the side, resembles a pair of butterfly wings, hence the name butterfly-shaped.

[0045] At the same time, the heat generated by the heating element is blown to various parts of the machine, thereby completing the heat transfer.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A heating and stirring system for an incubator, characterized in that, It includes an incubator housing, a heating assembly, and a stirring assembly. The stirring assembly includes a support assembly, a five-spoke pulley, stirring blades, a bearing assembly, a V-belt, and a motor assembly. A crossbeam is provided on the support assembly, and a bearing assembly is fixedly provided on the crossbeam. Five-spoke pulleys are fixedly provided at both ends of the bearing assembly, and multiple stirring blades are installed on each of the five-spoke pulleys. The heating component is mounted on the support assembly; The motor assembly is fixedly installed on the top outer surface of the incubator housing. It includes a motor and a small pulley. The small pulley is fixed to the output end of the motor and is connected to one of the five-spoke pulleys via the V-belt. When the motor is working, the small pulley and the five-spoke pulley move synchronously.

2. The heating and stirring system for an incubator as described in claim 1, characterized in that, The support assembly consists of columns and beams. Two columns are vertically fixed to the ground, and the top of each column is fixed to the inner top of the incubator housing. Each beam is vertically mounted on two columns at both ends, forming an H-shape.

3. The heating and stirring system for an incubator as described in claim 1, characterized in that, The five-spoke pulley includes a rim, spokes, and a hub. The hub is connected by multiple spokes, and there are five spokes. Each of the spokes has an I-shaped boss, and each end of the I-shaped boss has a fixing hole for fixing the stirring blade.

4. The heating and stirring system for an incubator as described in claim 1, characterized in that, The stirring blades are L-shaped overall.

5. The heating and stirring system for an incubator as described in claim 1, characterized in that, The side of the stirring blade that contacts the five-spoke pulley has two blade fixing holes, and the stirring blade is fixed to the five-spoke pulley with two bolts.

6. The heating and stirring system for an incubator as described in claim 1, characterized in that, The motor assembly specifically includes a motor, a motor bracket, and a small pulley, which is located directly above the bracket assembly; The motor is mounted on a motor bracket, and the motor bracket is fixedly mounted on the top outer surface of the incubator housing; The stirring assembly also includes a pulley tensioning device, which is used to adjust the tension of the V-belt.

7. The heating and stirring system for an incubator as described in claim 6, characterized in that, The pulley tensioning device consists of several bracket pads with elongated holes. These bracket pads are placed at the bottom of the motor bracket to raise the height of the motor.

8. The heating and stirring system for an incubator as described in claim 6, characterized in that, The belt tensioning device is a tensioning wheel fixed to the support column and located on the outer side of the slack side of the V-belt.

9. A heating and stirring system for an incubator as described in claim 6, characterized in that, The pulley tensioning device includes a front clamping plate, a rear clamping plate, a pressure block assembly, a set screw, and a bolt assembly; The front and rear clamping plates have central openings for accommodating bearing assemblies. The bearing assemblies are fitted into the central openings of the clamping plates. The front clamping plate is fixed to a crossbeam by a bolt assembly, and the rear clamping plate is fixed to another crossbeam by a bolt assembly. The pressure block assembly is disposed on top of the bearing assembly; the crossbeam on top of the bearing assembly is fixed to the pressure block assembly by the set screw, and the pressure block assembly transmits axial force to the bearing assembly.

10. A method for operating a heating and stirring system for an incubator, comprising the heating and stirring system for an incubator as described in any one of claims 1-9, characterized in that, The heating component and the stirring component are arranged in a cross shape in space; The motor drives the stirring blades to rotate, forming a double-sided butterfly-shaped airflow field inside the incubator; the heat generated by the heating component is blown to various locations inside the incubator.

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