Noise reduction type screw air compressor

Abstract

The utility model discloses a noise reduction type screw air compressor, which belongs to the technical field of air compression, and comprises an air compressor, the two sides of the air compressor are respectively provided with a side bin and an oil pump, a rotor is rotatably arranged in the air compressor, an oil pipe is arranged on the oil pump, a seat bin is fixedly arranged in the side bin, and the seat bin is connected with the rotor. The plurality of atomizing nozzles can perform annular spraying and autorotation spraying during use, when the atomizing nozzles perform annular spraying, external oil is uniformly sprayed on the rotor through atomization, when the atomizing nozzles perform autorotation spraying, the external oil is uniformly sprayed on the rotor through atomization, and when the atomizing nozzles perform autorotation spraying, the external oil is uniformly sprayed on the rotor through atomization. Oil liquid in the atomizing nozzle forms self-rotation spiral rotation, a conical oil mist curtain is formed after spiral rotation spraying, direct impact of the oil liquid on a rotor is reduced, noise is reduced, spiral rotation oil flow and the rotation direction of the rotor are overlapped in the same direction, the relative speed is reduced, impact force is weakened, meanwhile, spiral rotation oil mist is gradually mixed with air, and the oil mist spraying effect is improved. And sudden turbulence noise is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air compression technology, specifically a noise-reducing screw air compressor. Background Technology

[0002] A screw air compressor is a mechanical device that compresses gas by rotating a screw rotor. Its core component is a pair of meshing helical rotors that draw in, compress, and discharge high-pressure gas through their rotation.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN221033129U) discloses a noise-reducing screw air compressor. This utility model relates to a noise-reducing screw air compressor, comprising a body, a support plate fixedly connected to the bottom of the body, a sliding hole inside the support plate, a sliding column fitted to the inner wall of the sliding hole, a base plate fixedly connected to the bottom of the sliding column, a strip-shaped box fixedly connected to the upper surface of the support plate, shock-absorbing mechanisms fixedly connected to the front and rear sides of the inner wall of the strip-shaped box, a connecting column fixedly connected to the upper surface of the sliding column, a circular hole inside the connecting column, and the inner wall of the circular hole fixedly connected to the surface of the shock-absorbing mechanism. This utility model discloses a noise-reducing screw air compressor. Through the cooperation of a support plate, sliding hole, sliding column, base plate, strip box, shock absorption mechanism, connecting column and round hole, the hydraulic damper on the shock absorption mechanism can suppress the vibration of the machine body during operation. Thus, the screw air compressor reduces the noise generated during operation by reducing vibration.

[0004] Although the aforementioned patents can suppress vibrations during machine operation and reduce vibration noise by setting up a shock-absorbing mechanism, these are all improvements to the external structure or noise reduction treatments. In contrast, when a traditional screw air compressor is in use, the internal lubricating oil is injected into the rotor cavity through a direct injection hole or a simple diffusion method. The high-speed oil flow directly impacts the rotor surface, generating noise from bursting bubbles. Furthermore, when the oil mixes with the compressed air, it forms eddies, which triggers high-frequency airflow noise.

[0005] Therefore, this utility model provides a noise-reducing screw air compressor to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a noise-reducing screw air compressor, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing screw air compressor, comprising an air compressor, with side chambers and oil pumps provided on both sides of the air compressor, and a rotor rotatably provided inside the air compressor, with an oil pipe provided on the oil pump, a seat chamber fixedly provided inside the side chamber, and a spiral jet noise-reducing nozzle assembly provided inside the seat chamber;

[0010] The spiral jet noise reduction nozzle assembly includes an auxiliary disk, with multiple oil inlet pipes rotatably arranged on the edge of the auxiliary disk, a track gear fixedly arranged at the bottom of the oil inlet pipes, an atomizing nozzle fixedly arranged at the bottom of the track gear, and an oil pressure self-driving assembly rotatably arranged in the middle of the auxiliary disk.

[0011] The hydraulic self-driving assembly includes a drive shaft, one end of which is fixedly provided with a drive fan blade, and the other end of which is fixedly provided with a drive gear.

[0012] As a preferred technical solution of this application, a chassis is rotatably provided at one end of the cockpit, and an oil inlet plate is fixedly provided at the other end of the cockpit. A track gear ring is fixedly provided on the inner wall of the middle part of the cockpit.

[0013] As a preferred technical solution of this application, the auxiliary disk is rotatably disposed on the inner wall of the seat, and the drive shaft is rotatably disposed at the center of the auxiliary disk.

[0014] As a preferred technical solution of this application, an oil inlet chamber is formed between the auxiliary disk and the oil inlet disk, the drive fan blade is rotatably disposed in the oil inlet chamber between the auxiliary disk and the oil inlet disk, and the oil inlet pipe is located in the oil inlet chamber between the auxiliary disk and the oil inlet disk.

[0015] As a preferred technical solution of this application, the drive gear, the track gear, and the track ring are all located between the chassis and the auxiliary disk, and the drive gear, the track gear, and the track ring are located on the same surface. At this time, the track gear is located between the track ring and the drive gear, and the two sides of the track gear are respectively meshed with the track ring and the drive gear.

[0016] As a preferred technical solution of this application, the oil pump is fixedly connected to the oil inlet plate through an oil pipe, and the atomizing nozzle is rotatably mounted on the chassis.

[0017] (III) Beneficial Effects

[0018] In use, this invention utilizes multiple atomizing nozzles to perform circumferential and rotational spraying. During circumferential spraying, the external oil is evenly sprayed onto the rotor through atomization. During rotational spraying, the oil inside the nozzle forms a spiral rotation, which, after being sprayed out, creates a conical oil mist curtain, reducing the direct impact of the oil on the rotor and thus lowering noise. The spiral rotating oil flow is superimposed in the same direction as the rotor's rotation, reducing the relative speed and weakening the impact force. At the same time, the spiral rotating oil mist gradually mixes with the air, avoiding sudden turbulent noise. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a noise-reducing screw air compressor;

[0020] Figure 2 An exploded view of a noise-reducing screw air compressor;

[0021] Figure 3 This is a structural schematic diagram of an air compressor in a noise-reducing screw air compressor.

[0022] Figure 4 This is a schematic diagram of the housing structure in a noise-reducing screw air compressor.

[0023] Figure 5 An exploded view of the interior of the housing in a noise-reducing screw air compressor;

[0024] Figure 6 This is a schematic diagram of the internal meshing mechanism of the housing in a noise-reducing screw air compressor.

[0025] In the picture:

[0026] 1. Air compressor; 2. Side compartment; 3. Oil pipe; 4. Oil pump; 5. Rotor; 6. Seat compartment; 7. Oil inlet plate; 8. Chassis; 9. Atomizing nozzle; 10. Track gear ring; 11. Track gear; 12. Oil inlet pipe; 13. Auxiliary plate; 14. Drive gear; 15. Drive shaft; 16. Drive blade. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides a noise-reducing screw air compressor, such as... Figures 1-6As shown, the noise-reducing screw air compressor includes an air compressor 1, with side chambers 2 and oil pumps 4 on both sides of the air compressor 1, and a rotor 5 rotatably installed inside the air compressor 1. An oil pipe 3 is installed on the oil pump 4, and a seat chamber 6 is fixedly installed inside the side chamber 2. A spiral jet noise-reducing nozzle assembly is installed inside the seat chamber 6.

[0029] The spiral jet noise reduction nozzle assembly includes an auxiliary disk 13, with multiple oil inlet pipes 12 rotatably arranged on the edge of the auxiliary disk 13, a track gear 11 fixedly arranged at the bottom of the oil inlet pipe 12, an atomizing nozzle 9 fixedly arranged at the bottom of the track gear 11, and a hydraulic self-driving assembly rotatably arranged in the middle of the auxiliary disk 13.

[0030] The hydraulic self-drive assembly includes a drive shaft 15, with a drive fan blade 16 fixedly mounted at one end of the drive shaft 15 and a drive gear 14 fixedly mounted at the other end of the drive shaft 15.

[0031] The seat 6 has a chassis 8 rotatably mounted on one end, and an oil inlet plate 7 fixedly mounted on the other end. A track gear ring 10 is fixedly mounted on the inner wall of the middle part of the seat 6.

[0032] The auxiliary disk 13 is rotatably mounted on the inner wall of the seat 6, and the drive shaft 15 is rotatably mounted at the center of the auxiliary disk 13. The drive gear 14, the track gear 11, and the track ring gear 10 are all located between the chassis 8 and the auxiliary disk 13. The drive gear 14, the track gear 11, and the track ring gear 10 are located on the same plane. At this time, the track gear 11 is located between the track ring gear 10 and the drive gear 14, and the two sides of the track gear 11 are respectively engaged with the track ring gear 10 and the drive gear 14.

[0033] Specifically, in the traditional operation of an air compressor 1, during the oil injection stage, oil is injected directly into the compressor 1 using a direct injection method. This high-speed oil flow directly impacts the surface of the rotor 5, generating bubble bursting noise. Simultaneously, the directly injected oil mixes with compressed air to form vortices, triggering high-frequency airflow noise. This is the reason why traditional screw air compressors are prone to noise generation. Therefore, there is an urgent need to improve the traditional nozzles. In this invention, multiple atomizing nozzles 9 are rotatably mounted on an auxiliary disk 13, which is rotatably mounted inside a housing 6. Each atomizing nozzle 9 is equipped with a track gear 11, and a track gear ring 10 is fixedly mounted inside the housing 6. The track gears 11 on the multiple atomizing nozzles 9 surround the drive gear 14. The drive gear 14, track gears 11, and track gear ring 10 are located on the same plane. At this time, the track gear 11 is located between the track gear ring 10 and the drive gear 14, and the track... The gear 11 meshes with the track gear ring 10 and the drive gear 14 on both sides respectively. During use, the rotation of the drive gear 14 drives the rotation of the track gear 11. Since the track gear 11 meshes with the track gear ring 10 and the track gear ring 10 is fixed, the track gear 11 will rotate and circulate within the housing 6. At this time, the atomizing nozzle 9 on the track gear 11 will perform circumferential spraying and rotational spraying. When the atomizing nozzle 9 performs circumferential spraying, it is to atomize and evenly spray the external oil onto the rotor 5. When the atomizing nozzle 9 performs rotational spraying, the oil inside the atomizing nozzle 9 forms a rotating spiral. After the spiral rotation is sprayed out, it forms a conical oil mist curtain, which reduces the direct impact of the oil on the rotor 5, thereby reducing noise. The spiral rotating oil flow is superimposed in the same direction as the rotation of the rotor 5, reducing the relative speed and weakening the impact force. At the same time, the spiral rotating oil mist gradually mixes with the air, avoiding sudden turbulent noise.

[0034] An oil inlet chamber is formed between the auxiliary disk 13 and the oil inlet disk 7. The drive fan blade 16 is located in the oil inlet chamber between the auxiliary disk 13 and the oil inlet disk 7. The oil inlet pipe 12 is located in the oil inlet chamber between the auxiliary disk 13 and the oil inlet disk 7.

[0035] The oil pump 4 is fixedly connected to the oil inlet plate 7 via the oil pipe 3, and the atomizing nozzle 9 is rotatably mounted on the chassis 8.

[0036] Specifically, in actual use, the oil pump 4 is fixedly connected to the oil inlet plate 7 via the oil pipe 3. An oil inlet chamber is formed between the auxiliary plate 13 and the oil inlet plate 7. The drive fan blade 16 is rotated within the oil inlet chamber between the auxiliary plate 13 and the oil inlet plate 7. The oil inlet pipe 12 is located within the oil inlet chamber between the auxiliary plate 13 and the oil inlet plate 7. During oil delivery, high-pressure oil impacts the drive fan blade 16. During the impact, the drive fan blade 16 drives the drive shaft 15 to rotate, and the drive shaft 15 drives the drive gear 14 to rotate. Since the drive gear 14 is the basis for driving the atomizing nozzle 9 to perform circumferential spraying and self-rotating spraying, the atomizing nozzle 9 can be self-driven during oil delivery. Moreover, through this improvement in the driving method, the rotation speed of the atomizing nozzle 9 is synchronized with the oil delivery speed. The system effectively combines various functions. When in use, as the oil delivery speed increases, the rotation speed of the drive gear 14 also increases. At this time, the speeds of the circumferential spray and the self-rotation spray of the atomizing nozzle 9 increase synchronously. Moreover, this method allows the atomizing nozzle 9 to be driven without relying on external additional power, achieving this solely through the oil delivery process. This greatly simplifies the complexity of the equipment and reduces the cost of using an external motor drive. Simultaneously, during oil delivery, the oil inlet pipe 12 is located in the oil inlet chamber between the auxiliary plate 13 and the oil inlet plate 7. The oil inlet pipe 12 is rotatably mounted on the auxiliary plate 13, which is rotatably mounted on the seat chamber 6. This rotatable configuration ensures smooth oil delivery to the atomizing nozzle 9 without affecting its circumferential spray and self-rotation spray.

[0037] It should be emphasized that the specific structure inside air compressor 1 is based on conventional technology, so it will not be described in detail.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A noise-reducing screw air compressor, comprising an air compressor (1), characterized in that: The air compressor (1) is provided with side chambers (2) and oil pumps (4) on both sides, and a rotor (5) is rotatably provided inside the air compressor (1). An oil pipe (3) is provided on the oil pump (4). A seat chamber (6) is fixedly provided inside the side chamber (2). A spiral jet noise reduction nozzle assembly is provided inside the seat chamber (6). The spiral jet noise reduction nozzle assembly includes an auxiliary disk (13), with multiple oil inlet pipes (12) rotatably arranged on the edge of the auxiliary disk (13), a track gear (11) fixedly arranged at the bottom of the oil inlet pipe (12), an atomizing nozzle (9) fixedly arranged at the bottom of the track gear (11), and an oil pressure self-driving assembly rotatably arranged in the middle of the auxiliary disk (13). The hydraulic self-driving assembly includes a drive shaft (15), one end of which is fixedly provided with a drive fan blade (16), and the other end of which is fixedly provided with a drive gear (14).

2. The noise-reducing screw air compressor according to claim 1, characterized in that: The seat (6) is rotatably provided with a chassis (8) at one end, and an oil inlet plate (7) is fixedly provided at the other end of the seat (6). A track toothed ring (10) is fixedly provided on the inner wall of the middle part of the seat (6).

3. The noise-reducing screw air compressor according to claim 2, characterized in that: The auxiliary disk (13) is rotatably disposed on the inner wall of the seat (6), and the drive shaft (15) is rotatably disposed at the center of the auxiliary disk (13).

4. A noise-reducing screw air compressor according to claim 2, characterized in that: An oil inlet chamber is formed between the auxiliary disk (13) and the oil inlet disk (7). The drive fan blade (16) is rotatably disposed in the oil inlet chamber between the auxiliary disk (13) and the oil inlet disk (7). The oil inlet pipe (12) is located in the oil inlet chamber between the auxiliary disk (13) and the oil inlet disk (7).

5. A noise-reducing screw air compressor according to claim 2, characterized in that: The drive gear (14), track gear (11), and track ring gear (10) are all located between the chassis (8) and the auxiliary disk (13). The drive gear (14), track gear (11), and track ring gear (10) are located on the same surface. At this time, the track gear (11) is located between the track ring gear (10) and the drive gear (14), and the two sides of the track gear (11) are respectively engaged with the track ring gear (10) and the drive gear (14).

6. A noise-reducing screw air compressor according to claim 2, characterized in that: The oil pump (4) is fixedly connected to the oil inlet plate (7) through the oil pipe (3), and the atomizing nozzle (9) is rotatably mounted on the chassis (8).

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