Belt wheel structure with air cooling effect
By designing cooling air ducts and improving air cooling effect in the pulley structure, the stability and energy-saving problems of traditional pulleys in high-temperature environments are solved, achieving self-cooling effect, extending service life and saving water resources.
Patent Information
- Application Number
- CN202422629622.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The pulleys of traditional circulating fans are easily affected by heat in high-temperature environments, which affects their operational stability. Furthermore, the water cooling structure is complex and wasteful of water resources, and it is impossible to directly cool the pulleys, making it difficult to meet energy-saving requirements.
Design a pulley structure comprising a pulley body, a pulley groove, a pulley hub, and a pulley rib. The pulley rib forms a cooling air duct, which uses air cooling to remove heat and achieve self-cooling.
It enables stable operation of pulleys under high-temperature conditions, extends service life, saves water resources, and achieves a cooling effect comparable to water cooling without increasing the number of components or costs.
Smart Images
Figure CN223594897U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high temperature fan technical field, concretely is a pulley structure with air cooling effect. BACKGROUND
[0002] In non-ferrous metal industry, the circulating fan used in high temperature annealing furnace, heating furnace and other furnace bodies needs to adapt to the operation demand of high temperature environment, so the associated structure and components of the circulating fan need to meet the operation ability of high temperature environment, such as the pulley connected with the impeller through the fan main shaft, the heat will be transmitted to the pulley through the fan main shaft, resulting in that the temperature of the pulley is very high, which easily affects the use stability of the pulley. The circulating fan used in the traditional high temperature annealing furnace and heating furnace adopts a water cooling structure to cool the circulating fan and its associated structure and components, but the water cooling structure is complex, and water resources are wasted, and the water cooling structure cannot directly cool the pulley. And the traditional fan pulley is generally composed of a pulley groove and a pulley hub, and does not have other cooling structures. With the improvement of customer use requirements and environmental energy saving requirements, new requirements are put forward for the fan, including the requirements for the pulley, therefore, how to design the pulley structure is urgently needed to be solved. SUMMARY
[0003] The utility model discloses a pulley structure with air cooling effect, which solves the problems in the background art.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pulley structure with air cooling effect, comprising a pulley body, a pulley groove, a pulley hub and a connecting hole arranged on the pulley hub, the pulley body is an annular structure with a through hole in the middle, the through hole is circular, the pulley hub is arranged in the middle of the through hole, a plurality of pulley ribs are connected between the pulley hub and the hole wall of the through hole, a plurality of pulley ribs are evenly spaced along the circumference of the through hole, the pulley rib divides the through hole into a plurality of cooling air ducts, and the middle of the pulley hub is provided with a penetrating connecting hole.
[0005] Further preferably, the axial thickness of the pulley hub is greater than the same direction thickness of the pulley rib.
[0006] Further preferably, the side surface of the pulley rib relative to the through hole is a C-shaped surface, which can converge the airflow and improve the air volume.
[0007] Further preferably, the C-shaped side surface of the pulley rib is inclined relative to the axial direction of the pulley hub, which can change the airflow direction, push the surrounding airflow to a specific direction, generate cooling air, improve the air volume and enhance the cooling effect.
[0008] Further preferably, the side of the belt wheel spoke opposite the through hole is a plane, and the plane is inclined to the axial direction of the belt wheel hub, capable of changing the direction of the airflow, pushing the surrounding airflow to a specific direction, generating cooling wind, increasing the air volume, and improving the cooling effect.
[0009] Further preferably, the connecting hole is a through hole with a frustum structure, capable of being embedded with the fan main shaft for connection, with high connection strength; the hole wall of the connecting hole has a friction structure, increasing the friction force and improving the connection firmness of the fan main shaft and the connecting hole.
[0010] Further preferably, the connecting hole is a threaded hole, and a rectangular groove is arranged on the inner wall of the threaded hole, capable of improving the connection firmness of the fan main shaft and the connecting hole.
[0011] Further preferably, the belt wheel groove is arranged along the circumferential direction of the belt wheel body, and the belt wheel groove is four, capable of improving the load bearing capacity and transmission performance; the belt wheel spoke is four, capable of ensuring the generation of cooling wind.
[0012] Beneficial effects: The belt wheel structure with air cooling effect can generate cooling wind through the belt wheel spoke during rotation, and the heat on the belt wheel structure and the connected fan main shaft can be taken away through the cooling wind passing through the cooling air duct, so that the self-cooling effect is achieved. The cooling effect is equivalent to the cooling effect of traditional cooling water, effectively improves the heat energy problem of the belt wheel during work under high temperature conditions, ensures the temperature rise of the belt wheel itself, prolongs the service life of the belt wheel, ensures the use effect of the fan is more stable, and saves energy and water resources on site. The belt wheel structure can achieve the purpose of reducing the temperature rise of the belt wheel without increasing components and production costs, and achieve the purpose of stable work under high temperature conditions. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The three-dimensional structure schematic view of the belt wheel structure with air cooling effect disclosed by the embodiment of the utility model
[0014] Figure 2 The first structure main view structure schematic view of the belt wheel structure with air cooling effect disclosed by the embodiment of the utility model
[0015] Figure 3 The second structure main view structure schematic view of the belt wheel structure with air cooling effect disclosed by the embodiment of the utility model
[0016] Figure 4 The third structure main view structure schematic view of the belt wheel structure with air cooling effect disclosed by the embodiment of the utility model
[0017] Figure 5 This is a partial cross-sectional view of the pulley structure with air-cooling effect disclosed in the embodiment of this utility model.
[0018] Reference numerals: 1-Pulley body, 2-Pulley groove, 3-Through hole, 4-Pulley hub, 5-Pulley rib, 6-Connecting hole, 7-Cooling air duct. Detailed Implementation
[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0020] like Figure 1 As shown, a pulley structure with air-cooling effect is used in C-type belt pulley driven circulating fans in high-temperature annealing furnaces and heating furnaces. It is installed on the fan's main shaft and connected to the fan impeller. Driven by a motor and belt, the pulley rotates and generates cooling air during rotation, thus removing some of the heat generated at the rotating part of the main shaft. This achieves self-cooling of the pulley, ensuring its temperature rise and making its performance more stable, while also increasing its service life. The pulley structure includes a pulley body 1, a pulley groove 2, a pulley hub 4, and a connecting hole 6 on the pulley hub 4. The pulley groove 2 is used for belt installation. The motor rotation drives the belt drive, which in turn drives the pulley and the connected main shaft and fan to rotate synchronously. The pulley hub 4 serves as internal support for the pulley body 1 and is connected to the main shaft via the connecting hole 6. The pulley body 1 is an annular structure with a through hole 3 in the center. The through hole 3 is circular, and the pulley hub 4 is located in the center of the through hole 3. Several pulley ribs 5 connect the pulley hub 4 and the wall of the through hole 3. The pulley ribs 5 are evenly spaced along the circumference of the through hole 3, dividing the through hole 3 into several cooling air channels 7. A through connecting hole 6 is provided in the center of the pulley hub 4. The through hole 3 and the pulley ribs 5 form the cooling air channels 7, facilitating the flow of cooling air and carrying away the heat from the pulley structure composed of the pulley hub 4, pulley ribs 5, and pulley body 1, thereby achieving self-cooling and evenly dissipating the heat from the main shaft. The pulley ribs 5 are used to connect the pulley body 1 and the pulley hub 4, and when the pulley hub 4 rotates, the pulley ribs 5 can push the airflow, thereby generating cooling air and achieving air cooling effect.
[0021] In this application, the axial thickness of the pulley hub 4 is greater than the thickness of the pulley rib 5 in the same direction. That is, the pulley body 1 and the pulley hub 4 form an annular cylinder, which can guide the airflow. When the pulley rib 5 agitates the airflow, the airflow can flow out through the annular cylinder formed by the pulley body 1 and the pulley hub 4, thus realizing the generation of cooling air.
[0022] In one aspect of the present application, as shown in Figures 2-3 The C-shaped side surface of the belt wheel rib 5 is inclined relative to the axial direction of the belt wheel hub 4, which can affect the flow direction of the air flow and push the air flow in a specific direction, thereby reducing the wind pressure, increasing the air volume, and improving the cooling and heat dissipation performance.
[0023] Based on the above scheme, the C-shaped side surface of the belt wheel rib 5 is inclined relative to the axial direction of the belt wheel hub 4, which can affect the flow direction of the air flow and push the air flow in a specific direction, thereby reducing the wind pressure, increasing the air volume, and improving the cooling and heat dissipation performance.
[0024] In another aspect of the present application, as shown in Figure 4 Unlike the structure of the belt wheel rib 5 described above, in this aspect, the side surface of the belt wheel rib 5 is a flat surface, and the flat surface is inclined relative to the axial direction of the belt wheel hub 4. Similarly, by arranging the structure of the belt wheel rib 5, the air flow in the through hole 3 is stirred, the cooling air is generated, and the heat on the belt wheel structure can be carried away.
[0025] In another aspect of the present application, the connecting hole 6 is a through hole with a conical structure, and the hole wall of the connecting hole 6 has a friction structure. The connecting hole 6 is a conical structure for embedding the main shaft. By designing the conical structure, the fan shaft and the connecting hole 6 are connected with interference, and finally the belt wheel structure is installed. The friction structure of the hole wall of the connecting hole 6 can improve the connection firmness of the fan shaft and the connecting hole 6.
[0026] Unlike the above scheme, in this aspect, the connecting hole 6 is a threaded hole, and the fan shaft is screwed with the connecting hole 6 to install the belt wheel structure on the fan shaft. The inner wall of the connecting hole 6 is provided with a rectangular groove for embedding the pin, which can strengthen the connection firmness of the fan shaft and the connecting hole 6.
[0027] In the present application, as shown in Figure 5 The belt wheel groove 2 is arranged along the circumferential direction of the belt wheel body 1, and there are four belt wheel grooves 2, which can simultaneously connect four belts. There are four belt wheel ribs 5, which can strengthen the stirring of air and generate cooling air. The present application is not limited to four belt wheel ribs 5, but can also be five, six or other numbers.
[0028] In the present application, by arranging the structures of the through hole 3, the belt wheel rib 5 and the cooling air duct 7, the belt wheel structure can generate cooling air during rotation through the belt wheel rib 5. The cooling air passes through the cooling air duct 7 to carry away the heat on the belt wheel structure and the connected fan shaft, achieving the effect of self-cooling. The cooling effect is equivalent to that of traditional cooling water, thereby saving energy and water resources on site.
[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of the present application.
Claims
1. A pulley structure with wind cooling effect, comprising a pulley body (1), a pulley wheel groove (2), a pulley wheel hub (4) and a connecting hole (6) arranged on the pulley wheel hub (4), characterized in that: The pulley body (1) is an annular structure with a through hole (3) in the middle, the through hole (3) is circular, the pulley hub (4) is arranged in the middle of the through hole (3), a plurality of pulley ribs (5) are connected between the pulley hub (4) and the hole wall of the through hole (3), a plurality of pulley ribs (5) are uniformly arranged along the circumference of the through hole (3), the pulley ribs (5) divide the through hole (3) into a plurality of cooling air ducts (7), and the middle of the pulley hub (4) is provided with a through connecting hole (6).
2. A belt wheel structure having a wind cooling effect according to claim 1, characterized in that: The axial thickness of the pulley hub (4) is greater than the same direction thickness of the pulley rib (5).
3. A belt wheel structure with a wind cooling effect according to claim 2, characterized in that: The side surface of the pulley rib (5) relative to the through hole (3) is a C-shaped surface.
4. A belt wheel structure having a wind cooling effect according to claim 3, characterized in that: The C-shaped side surface of the pulley rib (5) is inclined to the axial direction of the pulley hub (4).
5. A belt wheel structure having a wind cooling effect according to claim 2, characterized in that: The side surface of the pulley rib (5) relative to the through hole (3) is a plane, and the plane is inclined to the axial direction of the pulley hub (4).
6. A belt wheel structure having a wind cooling effect according to claim 1, characterized in that: The connecting hole (6) is a through hole with a frustum structure, and the hole wall of the connecting hole (6) has a friction structure.
7. The belt wheel structure with wind cooling effect according to claim 1, characterized in that: The connecting hole (6) is a threaded hole, and the inner wall is provided with a rectangular groove.
8. The belt wheel structure with wind cooling effect according to claim 1, characterized in that: The pulley groove (2) is arranged along the circumferential direction of the pulley body (1), there are four pulley grooves (2), and there are four pulley ribs (5).