A water cooling structure

Abstract

The application relates to the field of mechanical cooling, in particular to a water cooling structure which comprises a bearing seat, a water cooling interlayer arranged around the outer side of the bearing seat, a sealed cavity formed between the water cooling interlayer and the bearing seat and sealed by a sealing ring, water inlet and outlet joints of the water cooling interlayer are communicated with the sealed cavity to realize the circulating flow of cooling water; the water cooling structure further comprises a rotation central shaft penetrating through the bearing seat, the bearing seat is rotationally connected with the rotation central shaft through a deep groove ball bearing, a circlip is sleeved on the rotation central shaft to limit the deep groove ball bearing, and a gear is further connected to transmit power; the water inlet and outlet joints are quick connectors which are convenient for being connected with external water pipes, the water cooling interlayer is provided with a plug to prevent water leakage, and the sealed cavity has a certain amount of cooling water to form a circulating cooling path around the bearing seat. The application has the technical effects of effectively performing the circulating water cooling on the bearing seat, ensuring the stable rotation of the rotation central shaft, and being convenient for connection and preventing water leakage.

Description

Technical Field

[0001] This application relates to the field of mechanical cooling, and in particular to a water-cooled structure. Background Technology

[0002] Mixing equipment is widely used in industries such as chemical and food processing, playing a vital role in industrial production. With socio-economic development, these industries are increasingly demanding higher product quality and production efficiency, leading to a rise in the intensity and frequency of mixing operations. During mixing, significant heat is often generated due to friction within the mixing chamber and potential chemical reactions. Particularly when the mixing chamber rotates at high speed, the temperature of the shaft rises sharply, causing a corresponding increase in the temperature of the bearing housings that mesh with the mixing chamber. This not only affects the service life of the mixing equipment but may also negatively impact the quality of the final product. Therefore, cooling the mixing chamber and related components is crucial. Furthermore, with the continuous improvement of industrial automation, higher standards and expectations are being placed on the cooling efficiency and stability of mixing equipment.

[0003] In the field of mixing equipment cooling technology, various methods have been used in the industry to address the problem of excessively high temperatures in the mixing chamber and bearing housing. Air cooling is a common method, primarily using fans to accelerate airflow or relying on natural convection for heat dissipation. Its advantage lies in its simple structure, requiring no complex equipment or systems, and it can be effective in low-load mixing operations. Oil cooling utilizes circulating oil to remove heat. An oil pump continuously circulates the oil within the system, passing through a cooler before returning to the heat-generating parts, thus achieving cooling. This method offers relatively good cooling performance. Indirect water cooling uses an external heat exchanger, circulating water within it to transfer heat from the mixing chamber through heat exchange, thus avoiding direct contact between water and materials. Direct spray cooling involves spraying cooling water directly onto the outside of the mixing chamber, utilizing the evaporation and flow of the water to remove heat; this method is simple and direct.

[0004] However, these existing cooling methods all have significant drawbacks. While air cooling is simple in structure, its cooling efficiency is relatively low, making it difficult to meet the rapid cooling requirements of high-load mixing operations and failing to effectively control the temperature of the bearing housing. Oil cooling systems are complex, requiring oil pumps, coolers, and other equipment, increasing both equipment cost and floor space, and posing a risk of oil leaks that could damage the production environment and equipment. Indirect water cooling has low heat exchange efficiency and cannot dissipate heat effectively and promptly. Direct spray cooling, while simple to operate, results in significant water waste, and the discharge of untreated wastewater can pollute the environment. Furthermore, these existing technologies either lack sufficient cooling efficiency or have complex structures leading to high maintenance costs, failing to adequately meet the modern industrial requirements for the cooling efficiency and stability of mixing equipment. Utility Model Content

[0005] The purpose of this application is to provide a water-cooled structure.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a water-cooled structure, including a bearing housing, a water-cooled jacket disposed around the outside of the bearing housing, a gap being formed between the water-cooled jacket and the bearing housing, the gap being sealed by a sealing ring to form a closed cavity; the water-cooled jacket is respectively provided with an inlet connector and an outlet connector, both of which are connected to the closed cavity to realize the circulation of cooling water in the closed cavity.

[0007] By adopting the above technical solution, cooling water can circulate directly around the bearing housing in the closed cavity formed by the water-cooled jacket and the bearing housing. Compared with the inefficiency of air cooling, the complexity of oil cooling, and the insufficient heat exchange of indirect water cooling, this significantly improves the cooling efficiency of the bearing housing and can meet the cooling requirements of high-load stirring operations. At the same time, the overall structure can be realized with only simple components such as water-cooled jacket, sealing ring, and inlet and outlet water connectors. Compared with oil cooling systems, it eliminates complex equipment such as oil pumps and coolers, reducing maintenance costs. Moreover, the closed water circulation design avoids the waste of water resources from direct spray cooling, reduces the pollution of the environment caused by wastewater discharge, and helps to extend the service life of equipment and ensure product quality.

[0008] Optionally, the sealing ring is disposed in the gap between the water-cooled jacket and the bearing housing to seal the connection between the water-cooled jacket and the bearing housing.

[0009] By adopting the above technical solution, the sealing ring is set at the gap between the water-cooled jacket and the bearing housing and seals the connection. This effectively ensures that the cavity formed by the water-cooled jacket and the bearing housing remains sealed, preventing leakage of cooling water during circulation. This sealing effect ensures that there is always a sufficient amount of cooling water flowing around the bearing housing in the cavity, ensuring stable and reliable cooling efficiency. It also reduces the waste of water resources caused by leakage, reduces the risk of water leakage corroding other parts of the equipment, thereby reducing maintenance frequency and costs. At the same time, it avoids environmental pollution problems caused by leakage, further improving the operational stability and environmental friendliness of the entire water-cooled structure.

[0010] Optionally, it also includes a central axis of rotation passing through the bearing housing, wherein a deep groove ball bearing is installed in the bearing housing, and the central axis of rotation is rotatably connected to the bearing housing through the deep groove ball bearing, and the bearing housing is used to support the stable rotation of the central axis of rotation.

[0011] By adopting the above technical solution, a rotating central shaft that runs through the bearing housing is also included. A deep groove ball bearing is installed inside the bearing housing, which enables the rotational connection between the rotating central shaft and the bearing housing. The bearing housing supports the stable rotation of the rotating central shaft, and the gear has a stirring chamber. This design allows the gear to directly drive the stirring chamber while transmitting power to drive the rotating central shaft, reducing intermediate transmission links from the gear to the stirring chamber, reducing energy loss, and improving power transmission efficiency. At the same time, the integrated design of the stirring chamber and gear makes the overall structure more compact, reduces the connection gap between components, avoids shaking or offset caused by improper matching of multiple components, ensures more stable rotation of the stirring chamber, and reduces the additional heat generated by abnormal friction. Combined with the water cooling effect of the bearing housing, the heat generated by the operation of the gear and stirring chamber can be transferred to the cooling water more efficiently through the bearing housing, ensuring stable temperature of the stirring chamber. In addition, the compact structure simplifies the assembly process, reduces the number of maintenance parts, reduces maintenance costs, and the stable rotation extends the service life of components such as gears, stirring chamber, and deep groove ball bearings. Together with the overall water cooling structure, it improves the operational reliability and stirring efficiency of the equipment.

[0012] Optionally, a retaining ring is sleeved on the rotating central shaft, and the retaining ring is located at the end of the deep groove ball bearing for limiting and fixing the deep groove ball bearing.

[0013] By adopting the above technical solution, the retaining ring sleeved on the rotating shaft is located at the end of the deep groove ball bearing and limits and fixes it, which can effectively prevent the deep groove ball bearing from axially displacing when the rotating shaft rotates at high speed, ensuring that it is always in the preset installation position. This avoids abnormal clearance between the rotating shaft and the bearing housing caused by bearing displacement, thereby reducing abnormal friction and collision between components and reducing the generation of additional heat. At the same time, the stable limiting and fixing makes the stress state of the deep groove ball bearing more uniform, ensuring its friction reduction effect is continuous and stable. Combined with the water cooling of the bearing housing, the temperature of the bearing housing can be controlled more efficiently. In addition, the fixing effect of the retaining ring also reduces the wear of the deep groove ball bearing caused by displacement, extends the service life of the bearing and related components, reduces the maintenance frequency caused by component loosening, further ensures the stability of the rotating shaft rotation, and, together with the overall water cooling structure, improves the reliability and durability of the equipment operation.

[0014] Optionally, a gear is connected to the rotating central shaft, the gear is used to transmit power to drive the rotating central shaft to rotate, and the gear is provided with a stirring chamber.

[0015] By adopting the above technical solution, the gears connected to the rotating shaft are used to transmit power to drive its rotation. This gear transmission method can achieve stable and efficient power transmission, ensuring that the rotating shaft maintains a uniform and stable rotation state during the mixing operation. It reduces the shaking or speed fluctuation of the rotating shaft caused by unstable power transmission, thereby reducing abnormal friction and additional heat generation between components, reducing the heat dissipation burden on the bearing housing, and working synergistically with the cooling effect of the water-cooling structure on the bearing housing to more efficiently control the bearing housing temperature. At the same time, the high reliability of the gear transmission avoids energy loss and slippage risk during power transmission, allowing more input power to be used for mixing operations, improving energy utilization efficiency. Furthermore, stable power transmission ensures that components such as deep groove ball bearings and bearing housings are subjected to uniform force, reducing wear caused by force imbalance, extending the service life of components, and further ensuring the continuous and stable operation of the mixing equipment. Together with the overall water-cooling structure, it improves the operational reliability and efficiency of the equipment.

[0016] Optionally, the inlet and outlet connectors are quick connectors, which are used for detachable connection with external water pipes.

[0017] By adopting the above technical solution, the inlet and outlet water connectors use quick-connect couplings for detachable connection with external water pipes. This design significantly simplifies the installation and disassembly process of the water cooling system and external water pipes. During equipment maintenance or repair, the connection and disconnection of water pipes can be completed quickly, greatly shortening downtime for maintenance and reducing the complexity of maintenance operations. This solves the problems of complex and time-consuming maintenance of cooling systems in existing technologies. At the same time, the reliable connection performance of the quick-connect couplings ensures the sealing at the connection point with the external water pipes, reducing the risk of leakage due to loose connections, ensuring the stability of cooling water circulation, and avoiding water waste and corrosion of equipment components caused by leakage. In addition, the convenient detachable connection also improves the adaptability of the equipment to different operating conditions or water pipe replacement needs, making the installation and adjustment of the water cooling structure more flexible. Together with the advantages of efficient cooling and low maintenance costs of the overall water cooling system, this further enhances the operational reliability and practicality of the equipment.

[0018] Optionally, the water-cooled jacket is also provided with a plug, which is used to seal the interface on the water-cooled jacket that is not connected to a pipe, so as to prevent the sealed cavity from leaking water.

[0019] By adopting the above technical solution, the plugs installed on the water-cooled jacket are used to seal the interfaces of unconnected pipes, which can effectively ensure the structural integrity of the water-cooled jacket and prevent water leakage in the sealed cavity due to unsealed interfaces. This ensures the normal circulation pressure and flow rate of cooling water in the cavity and avoids the decrease in cooling efficiency caused by water leakage. At the same time, the sealing effect of the plugs reduces the additional loss of water resources, solves the problem of water waste in the existing direct spray cooling method, and prevents water leakage from corroding other components of the equipment, reducing maintenance needs and costs caused by component corrosion. In addition, the reliable sealing of unused interfaces by the plugs means that the water-cooled jacket does not need to be specially treated for idle interfaces in different installation scenarios, improving the versatility of the structure and the convenience of installation. Together with quick connectors, O-rings and other components, it forms a complete sealing system, further ensuring the stable operation and efficient cooling effect of the water-cooling system.

[0020] Optionally, a fixed amount of cooling water is retained in the sealed cavity, and the cooling water enters from the water inlet and flows along the outside of the bearing housing and flows out from the water outlet, forming a circulating cooling path around the bearing housing.

[0021] By adopting the above technical solution, the metered cooling water retained in the sealed cavity and the surrounding circulating cooling path formed by the flow along the outside of the bearing housing can ensure that the cooling water is in continuous and uniform contact with the bearing housing, greatly improving the heat exchange efficiency. Compared with the inefficiency of air cooling and the insufficient heat exchange of indirect water cooling, it can quickly remove the heat generated by the rotation of the bearing housing due to the rotation of the central shaft, meeting the cooling requirements of high-load stirring operations. At the same time, the circulating flow design avoids the waste of water resources from direct spray cooling. The metered cooling water retained, combined with the sealed cavity, reduces unnecessary consumption and is more in line with environmental protection requirements. Moreover, the surrounding path ensures that all parts of the bearing housing are heated evenly, avoiding component damage caused by local overheating. Combined with the sealing effect of the O-ring seal, it ensures stable and reliable cooling effect, reduces the impact of temperature fluctuations on equipment life and product quality, further reduces maintenance costs, and works synergistically with the overall water cooling structure to improve the stability and durability of equipment operation.

[0022] In summary, this application has at least the following beneficial effects: 1. Cooling water can circulate directly around the bearing housing in a closed cavity formed by the water-cooled jacket and the bearing housing. Compared with the inefficiency of air cooling, the complexity of oil cooling, and the insufficient heat exchange of indirect water cooling, this significantly improves the cooling efficiency of the bearing housing and can meet the cooling requirements of high-load stirring operations. At the same time, the overall structure can be achieved with only simple components such as water-cooled jacket, sealing ring, and inlet and outlet water connectors. Compared with oil cooling systems, it eliminates complex equipment such as oil pumps and coolers, reducing maintenance costs. Moreover, the closed water circulation design avoids the waste of water resources from direct spray cooling, reduces the pollution of wastewater to the environment, and helps to extend the service life of equipment and ensure product quality.

[0023] 2. It also includes a rotating central shaft that runs through the bearing housing. A deep groove ball bearing is installed inside the bearing housing, enabling the rotating central shaft to rotate relative to the bearing housing. The bearing housing supports the stable rotation of the central shaft. The deep groove ball bearing effectively reduces friction during the rotation of the central shaft, thereby reducing the additional heat generated by friction and minimizing heat input to the bearing housing. Simultaneously, the stable rotation of the central shaft prevents abnormal friction or collisions between components caused by shaking, ensuring uniform force distribution on the bearing housing. Combined with the cooling effect of the water-cooled jacket, the heat generated by the rotation of the bearing housing can be more efficiently carried away by the cooling water, improving the overall stability of the cooling effect. Furthermore, the stable rotational support extends the service life of the deep groove ball bearing, the rotating central shaft, and the bearing housing, reducing maintenance needs due to component wear or unstable operation, further ensuring continuous and stable mixing operations. Together with the water-cooled structure, it enhances the overall reliability and operating efficiency of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a water-cooled structure. Figure 2This is a cross-sectional view of a water-cooled structure; Figure 3 This is an exploded view of a water-cooled structure.

[0025] Figure Labels 1. Bearing housing; 2. Water-cooled jacket; 3. Sealing ring; 4. Sealed cavity; 5. Water inlet connector; 6. Water outlet connector; 7. Rotating central shaft; 8. Deep groove ball bearing; 9. Snap ring; 10. Gear; 11. Agitator chamber; 12. Plug. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1 In this embodiment, refer to Figures 1-3 A water-cooled structure includes a water-cooled jacket 2 surrounding the outside of a bearing housing 1, a rotating central shaft 7 penetrating the bearing housing 1, a deep groove ball bearing 8 installed inside the bearing housing 1, a gear 10 cooperating with the rotating central shaft 7, a stirring chamber 11, a sealing ring 3 installed between the water-cooled jacket 2 and the bearing housing 1, a retaining ring 9 sleeved on the rotating central shaft 7, a water inlet connector 5 and a water outlet connector 6 provided on the water-cooled jacket 2, and a plug 12. A gap is formed between the water-cooled jacket 2 and the bearing housing 1, and the gap is sealed by the sealing ring 3 to form a closed cavity 4. Both the water inlet connector 5 and the water outlet connector 6 are connected to the closed cavity 4, allowing cooling water to circulate within the closed cavity 4. This achieves efficient cooling of the bearing housing 1, reduces the risk of equipment damage, and improves product quality. This is because the cooling water in the closed cavity 4 continuously removes the heat generated by the bearing housing 1, and the circulating flow ensures the continuity and efficiency of cooling.

[0028] Specifically, the water-cooled jacket 2 surrounds the outside of the bearing housing 1, forming a ring-shaped jacket structure. The water-cooled jacket 2 is typically made of a metal material with good thermal conductivity, such as copper or aluminum alloy, to better conduct heat. Its shape can be customized according to the shape of the bearing housing 1, generally being ring-shaped to fit the circular structure of the bearing housing 1. A certain gap is maintained between the water-cooled jacket 2 and the bearing housing 1. This gap should be moderate; too large a gap may obstruct the flow of cooling water, while too small a gap may affect the cooling effect. In some special cases, the water-cooled jacket 2 can also adopt other shapes, such as square, to adapt to different equipment layouts.

[0029] The bearing housing 1 supports the rotating central shaft 7, ensuring its stable rotation. The bearing housing 1 is typically made of high-strength steel, possessing good rigidity and wear resistance. Its interior has grooves suitable for mounting deep groove ball bearings 8. The dimensions and precision of these grooves must match the deep groove ball bearings 8 to ensure smooth installation. The shape of the bearing housing 1 can be adjusted according to the overall design of the equipment; for example, it can have different mounting hole positions and numbers to facilitate connection with other components.

[0030] The retaining circlip 9 is fitted onto the rotating central shaft 7, located at the end of the deep groove ball bearing 8. The retaining circlip 9 is generally made of spring steel and has a certain degree of elasticity. Its function is to limit and fix the deep groove ball bearing 8, preventing axial movement of the deep groove ball bearing 8 during the rotation of the central shaft 7. The inner diameter of the retaining circlip 9 must be compatible with the outer diameter of the central shaft 7. During installation, a special tool is needed to open the retaining circlip 9 before fitting it into the corresponding position on the central shaft 7. In some special cases, other types of limiting devices, such as shaft retaining rings, can be used instead of the retaining circlip 9.

[0031] Gear 10 engages with the rotating central shaft 7 to transmit power, causing the central shaft 7 to rotate. Gear 10 is typically made of alloy steel and, after heat treatment, possesses high hardness and wear resistance. The tooth profile of gear 10 must conform to certain standards to ensure smooth and accurate transmission. It can be connected to the rotating central shaft 7 via a key, the size and shape of which must match the keyways on both gear 10 and the rotating central shaft 7. In some cases, spline connections or interference fits can also be used to connect gear 10 to the rotating central shaft 7.

[0032] The mixing chamber 11, mounted on the gear 10, is the core component for mixing operations. The material of the mixing chamber 11 is selected based on the specific application. For example, in the food processing industry, sanitary-grade materials such as stainless steel are typically used; while in the chemical industry, corrosion-resistant materials are required. The mixing chamber 11 can be cylindrical, square, or other shapes, and various types of agitators can be installed inside to meet different mixing needs.

[0033] The quick-connect coupling includes an inlet connector 5 and an outlet connector 6, which are installed on the water-cooled jacket 2. Quick-connect couplings are generally made of plastic or metal and feature convenient connection and good sealing performance. Both the inlet connector 5 and the outlet connector 6 communicate with the sealed cavity 4 to allow cooling water to enter and exit. Their interface dimensions must be compatible with external water pipes to facilitate detachable connection. In some special cases, ordinary threaded couplings can be used instead of quick-connect couplings, but the ease of installation and disassembly will be reduced.

[0034] The plug 12 is used to seal any unconnected pipe joints on the water-cooled jacket 2, preventing leakage from the sealed cavity 4. The plug 12 is typically made of rubber or plastic and offers good sealing performance. Its shape and size must match the joint on the water-cooled jacket 2. During installation, the plug 12 needs to be firmly inserted into the joint to ensure a proper seal. In applications requiring high sealing performance, sealant can be applied to the surface of the plug 12 to further enhance the sealing effect.

[0035] A deep groove ball bearing 8 is installed in the bearing housing 1 to reduce friction during the rotation of the central shaft 7. The deep groove ball bearing 8 consists of an inner ring, an outer ring, rolling elements, and a cage, and is generally made of chromium alloy steel. The raceways of the inner and outer rings are precision-machined with a high surface finish to ensure smooth rolling of the rolling elements. The cage separates the rolling elements, ensuring their even distribution between the inner and outer rings. The dimensions of the deep groove ball bearing 8 are selected based on the diameter of the central shaft 7 and the load it bears. In some high-speed, heavy-load applications, angular contact ball bearings or cylindrical roller bearings can be used instead of deep groove ball bearings 8.

[0036] The rotating central shaft 7 passes through the bearing housing 1 and is rotatably connected to the bearing housing 1 via a deep groove ball bearing 8. The rotating central shaft 7 is typically made of high-strength alloy steel, possessing high strength and toughness. Its surface is precision-machined to reduce surface roughness and minimize friction with the deep groove ball bearing 8. One end of the rotating central shaft 7 can be connected to the gear 10, and the other end can be fitted with a stirring paddle or other stirring components. In some special applications, the rotating central shaft 7 can also adopt a hollow shaft structure to reduce weight or facilitate wiring.

[0037] The O-ring 3 is installed in the gap between the water-cooled jacket 2 and the bearing housing 1 to seal the connection between them. The O-ring 3 is generally made of rubber, possessing good elasticity and sealing performance. Its cross-section is circular, and its size must be matched to the gap size. During installation, it needs to be placed into the gap and ensure a complete fit. In some high-temperature and high-pressure environments, O-rings 3 made of high-temperature and high-pressure resistant materials such as fluororubber can be used.

[0038] These components are assembled together, with the gap between the water-cooled jacket 2 and the bearing housing 1 sealed by an O-ring 3 to form a closed cavity 4. When cooling water enters the closed cavity 4 from the inlet connector 5, it flows along the outside of the bearing housing 1, carrying away the heat generated by the bearing housing 1, and then flows out from the outlet connector 6. This circulating flow allows the cooling water to continuously cool the bearing housing 1, ensuring efficient and stable cooling. The engagement of the gear 10 with the rotating shaft 7 enables the rotating shaft 7 to rotate stably, thereby driving the stirring chamber 11 to perform stirring operations. The retaining ring 9 limits and fixes the deep groove ball bearing 8, ensuring the stability of the rotation of the rotating shaft 7.

[0039] The implementation principle of this embodiment is as follows: This embodiment forms a closed-loop water circulation cooling system through the synergistic effect of various components. Cooling water circulates within the closed cavity 4, efficiently removing the heat generated by the bearing housing 1. Compared to traditional air cooling and oil cooling methods, this method offers higher cooling efficiency and better meets the demands of high-load stirring operations. Simultaneously, the system structure is relatively simple, and the installation and maintenance of each component are convenient, reducing maintenance costs. Moreover, this water cooling method effectively utilizes water resources, reducing water waste and environmental pollution, making it more environmentally friendly than methods such as direct spray cooling.

[0040] Example 2 The difference between this embodiment and the previous embodiment is that a guide plate is provided inside the water-cooled jacket 2 in this embodiment. The guide plate can guide the cooling water to flow along a specific path in the sealed cavity 4, thereby improving the cooling effect. The guide plate is usually made of the same material as the water-cooled jacket 2, and its shape and number can be designed according to actual conditions. For example, multiple arc-shaped guide plates can be set to make the cooling water form a spiral flow path, increasing the contact time and area between the cooling water and the bearing seat 1, thereby improving the cooling efficiency.

[0041] The implementation principle of this embodiment is as follows: by setting a guide plate, the flow path of the cooling water in the sealed cavity 4 is changed, allowing the cooling water to come into more full contact with the bearing housing 1 and carry away more heat. This method further improves the cooling efficiency of the cooling system without increasing the complexity of the equipment or maintenance costs. Compared with the traditional water-cooled structure, it has a significant improvement in cooling performance and can better meet the cooling requirements of high-load stirring operations.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-cooled structure, characterized in that, The system includes a bearing housing (1) and a water-cooled jacket (2) arranged around the outside of the bearing housing (1). A gap is formed between the water-cooled jacket (2) and the bearing housing (1), and the gap is sealed by a sealing ring (3) to form a closed cavity (4). The water-cooled jacket (2) is provided with an inlet connector (5) and an outlet connector (6), and both the inlet connector (5) and the outlet connector (6) are connected to the closed cavity (4) to realize the circulation of cooling water in the closed cavity (4).

2. The water-cooled structure according to claim 1, characterized in that, The sealing ring (3) is disposed in the gap between the water-cooled jacket (2) and the bearing seat (1) to seal the connection between the water-cooled jacket (2) and the bearing seat (1).

3. The water-cooling structure according to claim 1, characterized in that, It also includes a central axis (7) that passes through the bearing housing (1), a deep groove ball bearing (8) is installed in the bearing housing (1), the central axis (7) is rotatably connected to the bearing housing (1) through the deep groove ball bearing (8), and the bearing housing (1) is used to support the central axis (7) to rotate stably.

4. The water-cooling structure according to claim 3, characterized in that, A retaining ring (9) is sleeved on the rotating central shaft (7). The retaining ring (9) is located at the end of the deep groove ball bearing (8) and is used to limit and fix the deep groove ball bearing (8).

5. A water-cooling structure according to claim 3, characterized in that, A gear (10) is connected to the rotating central shaft (7). The gear (10) is used to transmit power to drive the rotating central shaft (7) to rotate. The gear (10) is provided with a stirring chamber (11).

6. The water-cooling structure according to claim 1, characterized in that, The inlet connector (5) and the outlet connector (6) are quick connectors, which are used for detachable connection with external water pipes.

7. A water-cooled structure according to claim 1, characterized in that, The water-cooled jacket (2) is also provided with a plug (12), which is used to seal the interface on the water-cooled jacket (2) where no pipe is connected, so as to prevent the sealed cavity (4) from leaking water.

8. A water-cooled structure according to claim 1, characterized in that, A fixed amount of cooling water is stored in the sealed cavity (4), and the cooling water enters from the water inlet (5) and flows along the outside of the bearing seat (1) and flows out from the water outlet (6), forming a circulating cooling path around the bearing seat (1).

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