A high-temperature shaft cooling system
By installing a cooling mechanism between the agitator and the reducer, the problem of heat conduction from the agitator shaft to the reducer is solved, achieving a highly efficient cooling effect, extending the equipment's lifespan, and maintaining the agitation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 廊坊德基机械科技有限公司
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
During the high-temperature mixing process, heat is conducted through the metal of the mixing shaft to components such as the reducer, leading to equipment failure and performance degradation. Existing technologies have failed to effectively block heat conduction.
A cooling mechanism is installed between the agitator and the reducer, including a sealed heat sink, rotating heat sinks and hot water exchange channels. Water circulation is formed through a circulating pump and radiator to promote heat exchange between the coolant and the agitator shaft.
It effectively blocks heat conduction from the axial reducer of the agitator, improves equipment lifespan, and does not affect the agitation effect, while enhancing the contact area between the coolant and the agitator shaft and the heat transfer efficiency.
Smart Images
Figure CN224524666U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cooling technology, specifically to a high-temperature shaft cooling system. Background Technology
[0002] In the field of industrial production, agitators are widely used in various industries as core equipment for material mixing, reaction and homogenization. Their core working principle is to drive the stirring shaft and the stirring blades on the shaft to rotate through the power drive system, so that the material to be processed generates forced convection, shearing or diffusion motion in the container, and finally achieves the expected material processing effect. In many industrial scenarios, the materials that agitators need to process are often at high temperatures, typically ranging from 200°C to 800°C, and even exceeding 1000°C in some extreme cases. The agitator shaft, as the core transmission component that comes into direct contact with the high-temperature materials, is mostly made of metal and has good thermal conductivity. This characteristic has no significant impact in normal temperature mixing scenarios, but it becomes a key cause of equipment failure during the processing of high-temperature materials. Specifically, when the stirring shaft is immersed in the high-temperature material, the heat will be quickly conducted through the metal body of the stirring shaft. One end of the stirring shaft is connected to the stirring blades and directly contacts the high-temperature material, while the other end is connected to the output shaft of the reducer through a coupling, forming a complete heat conduction path. Due to the high heat conduction efficiency of metal, the heat of the high-temperature material will be continuously transferred along the stirring shaft towards the reducer, and during the conduction process, the heat is almost unimpeded. As an important component of the agitator's power transmission system, the reducer contains key components such as gears, bearings, and lubricating oil, which have strict requirements for operating temperature. In addition to the reducer, the heat conduction of the agitator shaft can also affect connected components such as the motor and sealing devices. The motor may experience problems such as decreased insulation performance and winding burnout due to increased temperature. Therefore, the above problems urgently need to be solved. Summary of the Invention
[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a cooling system for high-temperature shafts.
[0004] This application provides a high-temperature shaft cooling system, including... A stirring shaft extends along a first direction, with one end extending into the stirrer and the other end connected to a reducer drive. A cooling mechanism, located between the agitator and the reducer, includes a sealed heat dissipation cover and a rotating heat dissipation fin respectively fitted on the agitator shaft; The sealed heat dissipation cover is rotatably connected to the stirring shaft, and is provided with a rotating sealing ring at both ends. Inside, there are first heat exchange plates evenly arranged along the first direction. The rotating heat sink is fixedly installed on the stirring shaft, and includes a second heat exchange fin that is evenly arranged along the first direction; The second heat exchange plate is arranged alternately with the first heat exchange plate to form a heat exchange channel; The stirring shaft has a coaxial flow channel inside, which is used to connect with the input end of the hot water exchange channel; The bottom of the sealed heat dissipation cover is provided with a drain port for connecting to the output end of the hot water exchange channel.
[0005] Furthermore, The hot water exchange channel and the flow channel are connected by a through hole; The through hole extends radially along the stirring shaft, with one end connected to the flow channel and the other end penetrating the stirring shaft.
[0006] Furthermore, The flow channel is located at one end of the stirring shaft near the reducer, with one end connected to the through hole and the other end passing through the stirring shaft.
[0007] Furthermore, It also includes rotary sealing connectors; The rotary sealing connector is installed at one end of the stirring shaft near the reducer, with one end connected to the flow channel and the other end connected to the circulation pump to form a water circulation.
[0008] Furthermore, The output end of the circulating pump is connected to the rotary seal connector, and the input end is connected to the radiator. The radiator is also connected to the drain port for cooling the coolant.
[0009] Furthermore, The output end of the circulating pump is connected to the rotary sealing connector, and the input end is connected to the water storage tank. The water storage tank is also connected to the drain outlet to continuously supply cooling water to the hot water exchange channel.
[0010] Furthermore, The sealed heat dissipation cover is also equipped with heat dissipation fins; The heat sink is located on the outer ring of the sealed heat sink cover and is evenly arranged along the first direction.
[0011] The advantages and positive effects of this application are: This technical solution, by setting a cooling mechanism between the agitator and the reducer, can not only effectively block heat conduction from the agitator shaft towards the reducer, but also avoid affecting the temperature of the agitator shaft portion. This improves the service life of the equipment without impacting the agitation effect. Simultaneously, the first and second heat exchange plates form a multi-channel, high-contact-area heat exchange channel. This structure significantly increases the contact area between the coolant and the agitator shaft and heat exchange plates. Furthermore, the second heat exchange plate, rotating synchronously with the agitator shaft, can agitate the coolant within the heat exchange channel, breaking the laminar flow state of the coolant and promoting heat transfer. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a high-temperature shaft cooling system provided in an embodiment of this application; Figure 2 This is a schematic diagram of the cooling mechanism of the high-temperature shaft cooling system provided in the embodiments of this application.
[0013] The text labels in the figure are as follows: 100-stirring shaft; 101-flow channel; 110-stirring device; 120-reducer; 200-sealed heat sink; 201-first heat exchange fin; 202-heat sink; 210-rotating heat sink; 211-second heat exchange fin; 220-rotating sealing ring; 230-rotating sealing connector; 240-circulating pump; 250-radiator. Detailed Implementation
[0014] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.
[0015] Please refer to Figures 1-2This embodiment provides a high-temperature shaft cooling system, including a stirring shaft 100 extending along a first direction, with one end extending into a stirrer 110 and the other end connected to a reducer 120; a cooling mechanism located between the stirrer 110 and the reducer 120, including a sealing heat dissipation cover 200 and a rotating heat dissipation fin 210 respectively sleeved on the stirring shaft 100; the sealing heat dissipation cover 200 is rotatably connected to the stirring shaft 100, and has rotating sealing rings 220 at both ends, with internal... The system includes a first heat exchange plate 201 evenly arranged along the first direction; a rotating heat exchange plate 210 is fixedly mounted on the stirring shaft 100 and includes a second heat exchange plate 211 evenly arranged along the first direction; the second heat exchange plate 211 and the first heat exchange plate 201 are arranged alternately to form a heat exchange channel; the stirring shaft 100 has a coaxial flow channel 101 inside for communicating with the input end of the heat exchange channel; the bottom of the sealed heat dissipation cover 200 has a drain port for communicating with the output end of the heat exchange channel.
[0016] In this embodiment, the rotating heat sink 210 includes a bushing portion that matches the stirring shaft 100 and an annular second heat exchange plate 211; wherein, the bushing portion is used to be sleeved and installed with the stirring shaft 100 and is interference-fitted with the stirring shaft 100; the number of the second heat exchange plates 211 includes a plurality of them, which are evenly arranged along the first direction and are integrally formed with the bushing portion.
[0017] In this embodiment, the sealed heat dissipation cover 200 includes two structurally symmetrical parts, which are spliced together to form a sleeve installation structure with the stirring shaft 100; wherein, sealing components are provided between the two parts and between the two parts and the stirring shaft 100, thereby forming a closed inner cavity.
[0018] In this embodiment, the exterior of the sealed heat dissipation cover 200 is fixedly mounted on the stirrer 110 by a mounting bracket. Thus, during operation, the second heat exchange plate 211 will rotate relative to the first heat exchange plate 201, causing the coolant to be stirred in the heat exchange channel, thereby breaking the laminar flow state of the coolant and promoting heat transfer.
[0019] In this embodiment, the end of the heat exchange channel near the reducer 120 is the input end, which is connected to the external water supply device through the flow channel 101 in the stirring shaft 100; the bottom of the sealed heat dissipation cover 200 is provided with a corresponding drain port at the output end of the heat exchange channel, which is used to discharge the coolant after heat absorption.
[0020] In a preferred embodiment, the hot water exchange channel and the flow channel 101 are connected by a through hole; the through hole extends radially along the stirring shaft 100, with one end communicating with the flow channel 101 and the other end passing through the stirring shaft 100.
[0021] In a preferred embodiment, the flow channel 101 is located at one end of the stirring shaft 100 near the reducer 120, with one end communicating with the through hole and the other end passing through the stirring shaft 100.
[0022] In this embodiment, the flow channel 101 is located at one end of the stirring shaft 100 near the reducer 120. One end extends axially through the stirring shaft 100 for connection with an external water supply device, and the other end extends radially through the stirring shaft 100 for connection with a hot water exchange channel.
[0023] In this embodiment, by setting a coaxial flow channel 101 at one end of the stirring shaft 100, it is not only convenient to switch the hot water supply to the hot water channel, but also to cool down the section of the stirring shaft 100. At the same time, it will not affect the temperature of other sections of the stirring shaft 100. It can achieve the purpose of cooling down the specified location without affecting the stirring quality.
[0024] In a preferred embodiment, a rotary sealing connector 230 is also included; the rotary sealing connector 230 is installed at one end of the stirring shaft 100 near the reducer 120, one end is connected to the flow channel 101, and the other end is connected to the circulation pump 240 to form a water circulation.
[0025] In this embodiment, the stirring shaft 100 and the circulating pump 240 are connected by a rotary sealing connector 230, so that the rotation of the stirring shaft 100 is not affected, and the coolant is delivered into the flow channel 101.
[0026] In a preferred embodiment, the output end of the circulating pump 240 is connected to the rotary sealing connector 230, and the input end is connected to the radiator 250; the radiator 250 is also connected to the drain port for cooling the coolant.
[0027] In this embodiment, a radiator 250 is provided between the circulating pump 240 and the drain port; by providing the radiator 250, the coolant can be effectively cooled during the circulation process, thereby ensuring the cooling effect of the cooling mechanism on the stirring shaft 100.
[0028] In a preferred embodiment, the output end of the circulating pump 240 is connected to the rotary sealing connector 230, and the input end is connected to the water storage tank; the water storage tank is also connected to the drain port for continuously supplying cooling water to the hot water exchange channel.
[0029] In this embodiment, a water storage tank is provided between the circulating pump 240 and the drain port. By circulating the cooling water stored in the water storage tank, the cooling mechanism can also ensure the cooling effect on the stirring shaft 100.
[0030] In a preferred embodiment, the sealed heat sink 200 is further provided with heat sink 202; the heat sink 202 is located on the outer ring of the sealed heat sink 200 and is evenly arranged along the first direction.
[0031] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.
Claims
1. A high-temperature shaft cooling system, characterized in that, include A stirring shaft (100) extends along a first direction, with one end extending into the stirrer (110) and the other end connected to a reducer (120) for driving connection. The cooling mechanism is located between the agitator (110) and the reducer (120), and includes a sealed heat sink (200) and a rotating heat sink (210) respectively fitted on the agitator shaft (100). The sealed heat dissipation cover (200) is rotatably connected to the stirring shaft (100), and is provided with a rotating sealing ring (220) at both ends. The interior is provided with a first heat exchange plate (201) evenly arranged along the first direction. The rotating heat sink (210) is fixedly installed on the stirring shaft (100) and includes a second heat exchange fin (211) evenly arranged along the first direction. The second heat exchange plate (211) and the first heat exchange plate (201) are arranged alternately to form a heat exchange channel; The stirring shaft (100) has a coaxial flow channel (101) inside, which is used to connect with the input end of the hot water exchange channel; The bottom of the sealed heat dissipation cover (200) is provided with a drain port for connecting to the output end of the hot water exchange channel.
2. The high-temperature shaft cooling system according to claim 1, characterized in that, The heat exchange channel and the flow channel (101) are connected by a through hole; The through hole extends radially along the stirring shaft (100), with one end connected to the flow channel (101) and the other end penetrating the stirring shaft (100).
3. The high-temperature shaft cooling system according to claim 2, characterized in that, The flow channel (101) is located at one end of the stirring shaft (100) near the reducer (120), with one end connected to the through hole and the other end passing through the stirring shaft (100).
4. The high-temperature shaft cooling system according to claim 3, characterized in that, It also includes a rotary sealing connector (230); The rotary sealing connector (230) is installed at one end of the stirring shaft (100) near the reducer (120), with one end connected to the flow channel (101) and the other end connected to the circulation pump (240) to form a water circulation.
5. The high-temperature shaft cooling system according to claim 4, characterized in that, The output end of the circulating pump (240) is connected to the rotary sealing connector (230), and the input end is connected to the radiator (250); The radiator (250) is also connected to the drain port for cooling the coolant.
6. The high-temperature shaft cooling system according to claim 4, characterized in that, The output end of the circulating pump (240) is connected to the rotary sealing connector (230), and the input end is connected to the water storage tank; The water storage tank is also connected to the drain outlet to continuously supply cooling water to the hot water exchange channel.
7. The high-temperature shaft cooling system according to claim 1, characterized in that, The sealed heat sink (200) is also provided with heat sink fins (202). The heat sink (202) is located on the outer ring of the sealed heat sink (200) and is evenly arranged along the first direction.