A multi-stage compression air compressor heat dissipation device
By setting a large gear assembly on the outer end and a small gear assembly on the inner side of the air compressor pulley, and utilizing the gear transmission speed-up and drag-reduction design, the problem of insufficient heat dissipation in multi-stage compression air compressors is solved, achieving efficient heat dissipation and ensuring equipment stability and component lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG WEITAIKE TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional cooling methods for multi-stage compression air compressors are limited by the speed of the pulleys, resulting in insufficient cooling power, which makes it difficult to meet the needs of high-load operation and affects the stability and lifespan of the equipment.
By setting a large gear assembly at the outer end of the pulley and installing a small gear assembly on the inner side, the speed of the fan blades of the heat dissipation component is significantly increased by utilizing the speed-increasing characteristics of gear transmission. Combined with a drag-reducing component to reduce mechanical losses, an independent speed-increasing heat dissipation design is achieved.
It significantly improves heat dissipation power and efficiency, ensuring stable operation of the air compressor under high load conditions and extending the service life of key components.
Smart Images

Figure CN224380040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compressors, and in particular to a heat dissipation device for a multi-stage compression air compressor. Background Technology
[0002] A multistage compression air compressor is a device that progressively compresses gas through multiple compression stages. It boasts advantages such as high compression efficiency and stable output gas pressure, and is widely used in industrial production and machinery manufacturing. During the operation of a multistage compression air compressor, key components such as the compression assembly generate a significant amount of heat due to their work. If this heat cannot be dissipated in a timely manner, it will lead to a decline in equipment performance, a shortened lifespan of components, and even safety hazards.
[0003] Currently, multi-stage compression air compressors often use a pulley with fan blades mounted on the input shaft of the compression mechanism. The working principle is that the fan blades generate airflow as they rotate with the pulley, thereby dissipating heat from the compressor cylinder head, belt, bearings, and other components. However, this cooling method has significant drawbacks: because the pulley is primarily used for power transmission, its speed is limited by the transmission ratio, resulting in a slow speed at which the fan blades rotate. This leads to a small airflow and insufficient cooling power, making it difficult to meet the cooling requirements of multi-stage compression air compressors under high load operation. This limited cooling effect is one of the key issues restricting the efficient and stable operation of the equipment. Therefore, this application proposes a cooling device for multi-stage compression air compressors to solve the above problems. Utility Model Content
[0004] The main purpose of this utility model is to provide a heat dissipation device for a multi-stage compression air compressor, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A multi-stage compression air compressor cooling device includes a first pulley located outside a first housing. The first housing is fixedly mounted on an air tank. A compression assembly is fixedly mounted on the air tank and inside the first housing. The input shaft of the compression assembly passes through the first housing and is fixedly connected to the first pulley. A second housing is fixedly mounted to the outer end of the first housing. A large gear assembly is fixedly mounted to the outer end of the first pulley. The large gear assembly consists of a drive gear and a first connecting member. The first connecting member is fixedly mounted to the inner end of the drive gear. The outer wall of the second housing is fixed... A drag-reducing assembly is inserted, which consists of a base ring and rotating rollers. Several rotating rollers are arranged in a ring on the inner wall of the base ring. A heat dissipation assembly is rotatably installed inside the drag-reducing assembly. The heat dissipation assembly consists of an outer ring, a base column, and fan blades. The base column is located inside the outer ring and is coaxial with the outer ring. Several fan blades are fixedly installed on the inner wall of the outer ring and the outer wall of the base column. A pinion assembly is fixedly installed at the inner end of the base column. The pinion assembly consists of a transmission pinion and a second connecting member. The second connecting member is fixedly installed at the outer end of the transmission pinion. The transmission pinion meshes with a drive gear.
[0007] Preferably, a motor is fixedly installed on the gas storage tank and inside the first housing. A second pulley is installed on the output shaft of the motor and inside the first and second housings. The second pulley is fixedly connected to the output shaft of the motor. The first pulley is also located inside the first and second housings, and the second pulley is connected to the first pulley by a belt.
[0008] Preferably, the first connector on the large gear assembly is fixedly installed on the outer end of the first pulley, and the large gear assembly is coaxial with the first pulley; the second connector on the small gear assembly is fixedly installed on the inner end of the base column, and the small gear assembly is coaxial with the heat dissipation assembly.
[0009] Preferably, an annular groove is formed on the outer wall of the outer ring of the heat dissipation component, and the heat dissipation component and the drag reduction component are coaxial.
[0010] Preferably, a protective net is fixedly installed on the outer end of the outer ring of the drag reduction component and on the outside of the second housing. A plurality of roller grooves are formed in a ring on the inner wall of the outer ring. The rotating roller is rotatably installed in the roller groove and simultaneously rotatably installed in the annular groove.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] By setting a large gear assembly at the outer end of the first pulley, fixing a drag-reducing assembly to the outer wall of the second housing, rotatably installing a heat dissipation assembly inside the drag-reducing assembly, and setting a small gear assembly at the inner end of the heat dissipation assembly, the transmission small gear on the small gear assembly engages with the driving large gear on the large gear assembly. Utilizing the speed-increasing characteristics of gear transmission (the driving large gear has more teeth than the transmission small gear, forming a speed-increasing transmission ratio), the fan blade speed of the heat dissipation assembly is significantly higher than the speed of the first pulley, thereby greatly increasing the airflow and heat dissipation power per unit time. The rotating roller in the drag-reducing assembly works in conjunction with the heat dissipation assembly, resulting in less mechanical loss during the rotation of the heat dissipation assembly, thus further improving heat dissipation efficiency. The entire device, through the synergistic effect of belt drive and gear drive, achieves a decoupled design where the power input of the compression assembly and the independent speed increase of the heat dissipation assembly are not affected. This not only does not affect the power transmission efficiency of the compression process but also provides sufficient heat dissipation capacity under high load conditions. It effectively solves the problem of insufficient heat dissipation caused by the speed limitation of traditional pulley-driven fan blade heat dissipation methods, ensuring the stability and reliability of multi-stage compression air compressors during long-term operation and extending the service life of key components. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the present invention after the second outer shell, drag reduction component, and heat dissipation component have been removed.
[0015] Figure 3 This is a schematic diagram showing the positional relationship between the second outer shell, the large gear assembly, the small gear assembly, the drag reduction assembly, and the heat dissipation assembly of this utility model.
[0016] Figure 4 This is a schematic diagram showing the positional relationship between the large gear assembly and the small gear assembly of this utility model.
[0017] Figure 5 The figures show the drag reduction component and heat dissipation component of this utility model;
[0018] Figure 6 This is a schematic diagram showing the positional relationship between the base ring on the drag reduction component of this utility model and the heat dissipation component after it has been cut apart.
[0019] Figure 7 This utility model Figure 6 A magnified view of point A.
[0020] In the diagram: 1. Gas tank; 2. First outer shell; 3. Second outer shell; 4. First pulley; 5. Large gear assembly; 6. Small gear assembly; 7. Drag reduction assembly; 8. Heat dissipation assembly; 9. Compression assembly; 10. Motor; 11. Second pulley; 12. Drive gear; 13. First connector; 14. Transmission pinion; 15. Second connector; 16. Base ring; 17. Rotating roller; 18. Protective net; 19. Outer ring; 20. Base column; 21. Fan blade; 22. Annular groove; 23. Roller groove. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Please see Figures 1-7As shown, a multi-stage compression air compressor cooling device includes a first pulley 4 located outside a first housing 2. The first housing 2 is fixedly mounted on an air tank 1. A compression assembly 9 is fixedly mounted on the air tank 1 and inside the first housing 2. The input shaft of the compression assembly 9 passes through the first housing 2 and is fixedly connected to the first pulley 4. A second housing 3 is fixedly mounted on the outer end of the first housing 2. A large gear assembly 5 is fixedly mounted on the outer end of the first pulley 4. The large gear assembly 5 consists of a drive gear 12 and a first connecting member 13. The first connecting member 13 is fixedly mounted on the inner end of the drive gear 12. The outer wall of the second housing 3 is fixedly... A drag-reducing assembly 7 is inserted, consisting of a base ring 16 and rotating rollers 17. Several rotating rollers 17 are arranged in a ring on the inner wall of the base ring 16. A heat dissipation assembly 8 is rotatably mounted inside the drag-reducing assembly 7. The heat dissipation assembly 8 consists of an outer ring 19, a base column 20, and fan blades 21. The base column 20 is located inside the outer ring 19 and is coaxial with it. Several fan blades 21 are fixedly mounted on the inner wall of the outer ring 19 and the outer wall of the base column 20. A pinion assembly 6 is fixedly mounted at the inner end of the base column 20. The pinion assembly 6 consists of a transmission pinion 14 and a second connecting member 15. The second connecting member 15 is fixedly mounted at the outer end of the transmission pinion 14. The driving pinion 14 meshes with the driving gear 12. A large gear assembly 5 is set at the outer end of the first pulley 4, and a drag-reducing assembly 7 is fixedly inserted into the outer wall of the second housing 3. A heat dissipation assembly 8 is rotatably installed inside the drag-reducing assembly 7. A pinion assembly 6 is set at the inner end of the heat dissipation assembly 8. At the same time, the transmission pinion 14 on the pinion assembly 6 and the driving gear 12 on the large gear assembly 5 are engaged. By utilizing the speed-increasing characteristic of gear transmission (the driving gear 12 has more teeth than the transmission pinion 14, forming a speed-increasing transmission ratio), the rotational speed of the fan blade 21 of the heat dissipation assembly 8 is significantly higher than the rotational speed of the first pulley 4, thereby greatly increasing the airflow per unit time. The device improves heat dissipation efficiency by coordinating the rotation roller 17 in the drag reduction component 7 with the heat dissipation component 8, resulting in less mechanical loss during rotation and further enhancing heat dissipation efficiency. The entire device achieves a decoupled design by using belt drive and gear drive to independently increase the speed of the power input of the compression component 9 and the independent speed increase of the heat dissipation component 8. This design does not affect the power transmission efficiency during compression and provides sufficient heat dissipation capacity under high load conditions. It effectively solves the problem of insufficient heat dissipation caused by the limited speed of the traditional belt pulley and fan blade 21 heat dissipation method, ensuring the stability and reliability of the multi-stage compression air compressor during long-term operation and extending the service life of key components.
[0023] Specifically, a motor 10 is fixedly installed on the gas storage tank 1 and inside the first outer shell 2. A second pulley 11 is installed on the output shaft of the motor 10 and inside the first outer shell 2 and the second outer shell 3. The second pulley 11 is fixedly connected to the output shaft of the motor 10. The first pulley 4 is also located inside the first outer shell 2 and the second outer shell 3, and the second pulley 11 and the first pulley 4 are connected by a belt. When the multi-stage compression air compressor is working, the output shaft of the motor 10 drives the second pulley 11 to rotate. The second pulley 11 drives the first pulley 4 to rotate through the belt. The first pulley 4 is fixedly connected to the input shaft of the compression assembly 9, thereby driving the compression assembly 9 to perform multi-stage compression of the gas, realizing the gradual increase of gas pressure and storing it in the gas storage tank 1.
[0024] The first connecting piece 13 on the large gear assembly 5 is fixedly installed on the outer end of the first pulley 4, and the large gear assembly 5 is coaxial with the first pulley 4. The second connecting piece 15 on the small gear assembly 6 is fixedly installed on the inner end of the base column 20, and the small gear assembly 6 is coaxial with the heat dissipation assembly 8. An annular groove 22 is formed on the outer wall of the outer ring 19 on the heat dissipation assembly 8. The heat dissipation assembly 8 is coaxial with the drag reduction assembly 7. A protective net 18 is fixedly installed on the outer end of the outer ring 19 on the drag reduction assembly 7 and on the outer side of the second housing 3. Several roller grooves 23 are formed in an annular shape on the inner wall of the outer ring 19. The rotating roller 17 is rotatably installed in the roller groove 23 and simultaneously rotatably installed in the annular groove 22. When the first pulley 4 rotates, the large gear at its outer end... Component 5 rotates synchronously with the first pulley 4. At this time, the drive gear 12 meshes with the transmission pinion 14 of the small gear assembly 6. Since the drive gear 12 has more teeth than the transmission pinion 14, the transmission pinion 14 drives the heat dissipation component 8 to rotate at a speed higher than that of the first pulley 4 by utilizing the speed increase characteristic of gear transmission. The outer ring 19 of the heat dissipation component 8 has an annular groove 22 on its outer wall, which cooperates with the rotating rollers 17 distributed in annularly on the inner wall of the drag reduction component 7. The rotating rollers 17 are installed in both the annular groove 22 and the roller groove 23, which reduces the mechanical loss when the heat dissipation component 8 rotates. The high-speed rotating fan blades 21 generate a large amount of airflow, which efficiently dissipates heat from the compressor cylinder head, belt, bearings and other components, thereby ensuring the stable operation of the multi-stage compression air compressor.
[0025] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A multi-stage compression air compressor heat dissipation device, comprising a first pulley (4), the first pulley (4) being located outside a first housing (2), the first housing (2) being fixedly mounted on an air tank (1), a compression assembly (9) being fixedly mounted on the air tank (1) and inside the first housing (2), the input shaft of the compression assembly (9) passing through the first housing (2) and fixedly connected to the first pulley (4), and a second housing (3) being fixedly mounted on the outer end of the first housing (2), characterized in that: A large gear assembly (5) is fixedly installed on the outer end of the first pulley (4). The large gear assembly (5) consists of a driving large gear (12) and a first connecting member (13). The first connecting member (13) is fixedly installed on the inner end of the driving large gear (12). A drag-reducing assembly (7) is fixedly inserted into the outer wall of the second housing (3). The drag-reducing assembly (7) consists of a base ring (16) and rotating rollers (17). There are several rotating rollers (17) arranged in a ring on the inner wall of the base ring (16). A heat dissipation assembly (8) is rotatably installed inside the drag-reducing assembly (7). The device consists of an outer ring (19), a base column (20), and fan blades (21). The base column (20) is located inside the outer ring (19) and is coaxial with the outer ring (19). There are several fan blades (21), all of which are fixedly installed on the inner wall of the outer ring (19) and the outer wall of the base column (20). A pinion assembly (6) is fixedly installed at the inner end of the base column (20). The pinion assembly (6) consists of a transmission pinion (14) and a second connecting member (15). The second connecting member (15) is fixedly installed at the outer end of the transmission pinion (14). The transmission pinion (14) meshes with the drive gear (12).
2. The heat dissipation device for a multi-stage compression air compressor according to claim 1, characterized in that: A motor (10) is fixedly installed on the gas tank (1) and inside the first housing (2). A second pulley (11) is installed on the output shaft of the motor (10) and inside the first housing (2) and the second housing (3). The second pulley (11) is fixedly connected to the output shaft of the motor (10). The first pulley (4) is also located inside the first housing (2) and the second housing (3). The second pulley (11) and the first pulley (4) are connected by a belt.
3. The heat dissipation device for a multi-stage compression air compressor according to claim 2, characterized in that: The first connector (13) on the large gear assembly (5) is fixedly installed on the outer end of the first pulley (4), and the large gear assembly (5) is coaxial with the first pulley (4). The second connector (15) on the small gear assembly (6) is fixedly installed on the inner end of the base column (20), and the small gear assembly (6) is coaxial with the heat dissipation assembly (8).
4. The heat dissipation device for a multi-stage compression air compressor according to claim 3, characterized in that: An annular groove (22) is provided on the outer wall of the outer ring (19) of the heat dissipation component (8), and the heat dissipation component (8) is coaxial with the drag reduction component (7).
5. The heat dissipation device for a multi-stage compression air compressor according to claim 4, characterized in that: The outer end of the outer ring (19) on the drag reduction component (7) and the outer side of the second housing (3) are fixedly installed with a protective net (18). The inner wall of the outer ring (19) is provided with a number of roller grooves (23) in an annular shape. The rotating roller (17) is rotatably installed in the roller groove (23) and the rotating roller (17) is simultaneously rotatably installed in the annular groove (22).