Water-lubricated oil-free twin-screw air compressor

Abstract

This utility model discloses a water-lubricated oil-free twin-screw air compressor, relating to the technical field of oil-free twin-screw air compressors. It includes a silencing housing with an inner clamping frame inserted into its inner cavity. The silencing housing and the inner clamping frame are symmetrically distributed. A twin-screw air compressor is clamped between two of the inner clamping frames. A buffer mechanism is provided on opposite sides of the inner clamping frames. A connecting piece is fixedly installed between the two silencing housings. A sound-absorbing layer is fixedly bonded to the inner wall of the silencing housing. This utility model, by setting up a buffer mechanism, allows the buffer plate to push the support rod, which in turn drives the pressure plate to squeeze the damper and spring when the twin-screw air compressor vibrates during operation. This absorbs and dissipates vibration energy, thereby reducing component wear, extending service life, and reducing interference with surrounding equipment. The centrifugal glass wool sound-absorbing layer absorbs the noise generated by the twin-screw air compressor, reducing noise pollution in the working environment and improving the safety and comfort of the production environment.

Description

Technical Field

[0001] This utility model relates to the technical field of oil-free twin-screw air compressors, specifically a water-lubricated oil-free twin-screw air compressor. Background Technology

[0002] With industrial upgrading, the market demand for clean compressed air is becoming increasingly urgent. Oil-free air compressors use water as a lubricating medium, utilizing the fluidity of water to achieve lubrication, sealing, and cooling, thus solving the problem of oil pollution and gradually becoming an alternative to oil-based models.

[0003] However, existing oil-free air compressors still have some drawbacks in actual use: due to the high-speed meshing of the screw and the rotation of the bearings, continuous vibration and noise are generated. The vibration is directly transmitted to the installation foundation, causing the equipment to resonate as a whole. This not only aggravates component wear and shortens service life, but also interferes with the normal operation of surrounding precision equipment. Furthermore, the noise is transmitted directly to the outside without treatment, which will cause noise pollution in the working environment, affect the physical and mental health of operators, and reduce the safety and comfort of the production environment.

[0004] To address these issues, we designed a water-lubricated, oil-free twin-screw air compressor. Utility Model Content

[0005] The purpose of this invention is to provide a water-lubricated, oil-free twin-screw air compressor to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides a water-lubricated oil-free twin-screw air compressor, including a silencer housing, an inner clamping frame inserted into the inner cavity of the silencer housing, the silencer housing and the inner clamping frame being symmetrically distributed, a twin-screw air compressor being snapped between the two inner clamping frames, a buffer mechanism being provided on the opposite side of the inner clamping frames, a connecting piece being fixedly installed between the two silencer housings, and a sound-absorbing layer being fixedly bonded to the inner wall of the silencer housing.

[0007] Furthermore, the buffer mechanism includes an installation groove formed in the inner wall of the inner frame, a buffer plate slidably connected to the installation groove, a buffer cylinder fixedly connected to the installation groove, a pressure plate slidably connected inside the buffer cylinder, a support rod inserted through the center of the buffer cylinder, one end of the support rod fixedly connected to the buffer plate, the other end of the support rod fixedly connected to the pressure plate, a damper fixedly connected between the installation groove and the pressure plate, and a spring sleeved on the outer wall of the damper.

[0008] Furthermore, a first through groove is provided at the top of the opposite side of the silencing housing, and an extension plate is fixedly connected to the end of the inner frame away from the connecting piece, with the top of the extension plate penetrating through the first through groove.

[0009] Furthermore, a second through groove is provided at the top of the opposite side of the silencer housing, and a series box is snapped into the second through groove. The series box is fixedly installed on the top of the twin-screw air compressor and is electrically connected to the twin-screw air compressor.

[0010] Furthermore, the buffer plate is made of rubber, and the two buffer plates have anti-slip textures on opposite sides.

[0011] Furthermore, the end of the inner frame away from the extension plate abuts against the connecting piece.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting buffer mechanisms on opposite sides of the inner clamping frame, when the twin-screw air compressor vibrates during operation, the vibration is transmitted to the buffer plate. The buffer plate pushes the support rod to drive the pressure plate to squeeze the damper and spring. The elastic deformation of the spring can absorb some of the vibration energy. The damper consumes the vibration energy through internal damping, reducing the transmission of vibration to the installation foundation, avoiding overall equipment resonance, thereby reducing component wear, extending service life, and reducing interference with the normal operation of surrounding precision equipment.

[0014] 2. By setting up a sound-absorbing shell and a centrifugal glass wool material sound-absorbing layer fixedly bonded to the inner wall, the noise generated by the twin-screw air compressor is absorbed, reducing noise pollution in the working environment and improving the safety and comfort of the production environment. The two sound-absorbing shells are fixedly connected by a connecting piece, and the end of the inner frame away from the extension plate abuts against the connecting piece, which enhances the stability of the overall structure. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] Figure 3 This is a cross-sectional view of the buffer cylinder of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the sound-absorbing housing of this utility model.

[0019] In the diagram: 1. Silencing housing; 2. Extension plate; 3. Series box; 4. Connecting piece; 5. First through slot; 6. Second through slot; 7. Inner frame; 8. Silencing layer; 9. Mounting slot; 10. Buffer plate; 11. Support rod; 12. Buffer cylinder; 13. Pressure plate; 14. Damper; 15. Spring; 16. Twin-screw air compressor. Detailed Implementation

[0020] Please see Figures 1-4This utility model provides a technical solution: a water-lubricated oilless twin-screw air compressor, including a silencer housing 1, with an inner clamping frame 7 inserted into the inner cavity of the silencer housing 1. The silencer housing 1 and the inner clamping frame 7 are symmetrically distributed. A twin-screw air compressor 16 is clamped between the two inner clamping frames 7. The drive end of the twin-screw air compressor 16 obtains power through an external motor connected to a coupling, and the motor is located outside the silencer housing 1. A buffer mechanism is provided on opposite sides of the inner clamping frames 7. The buffer mechanism includes an installation groove 9 opened in the inner wall of the inner clamping frame 7. A buffer plate 10 is slidably connected to the installation groove 9. A buffer cylinder 12 is fixedly connected to the installation groove 9. The buffer cylinder 12 is internally... A pressure plate 13 is slidably connected. A support rod 11 is inserted through the center of the buffer cylinder 12. One end of the support rod 11 is fixedly connected to the buffer plate 10, and the other end of the support rod 11 is fixedly connected to the pressure plate 13. A damper 14 is fixedly connected between the mounting groove 9 and the pressure plate 13. A spring 15 is sleeved on the outer wall of the damper 14. A connecting piece 4 is fixedly installed between the two sound-absorbing shells 1. Through holes are opened at both ends of the connecting piece 4. The sound-absorbing shell 1 and the connecting piece 4 are fastened together by bolts. A sound-absorbing layer 8 is fixedly bonded to the inner wall of the sound-absorbing shell 1. The sound-absorbing layer 8 is made of centrifugal glass wool. The end of the inner frame 7 away from the extension plate 2 abuts against the connecting piece 4.

[0021] In practice, the twin-screw air compressor 16 is clamped between the two inner clamping frames 7, so that the buffer plates 10 on the opposite side of the inner clamping frames 7 are in contact with the twin-screw air compressor 16. When the twin-screw air compressor 16 vibrates during operation, the vibration is transmitted to the buffer plate 10. The buffer plate 10 is forced to push the support rod 11 to move into the buffer cylinder 12. The support rod 11 drives the pressure plate 13 to slide in the buffer cylinder 12. The pressure plate 13 squeezes the damper 14 and the spring 15. The spring 15 undergoes elastic deformation to absorb part of the vibration energy. The damper 14 consumes the vibration energy through internal damping. At the same time, the sound-absorbing layer 8 on the inner wall of the sound-absorbing housing 1 absorbs the noise generated by the twin-screw air compressor 16 during operation. The two sound-absorbing housings 1 are fixedly connected together by the connecting piece 4. The end of the inner clamping frame 7 away from the extension plate 2 abuts against the connecting piece 4 to enhance the stability of the overall structure.

[0022] See Figures 1-2 The top of the opposite side of the silencing housing 1 is also provided with a first through groove 5. The end of the inner clamping frame 7 away from the connecting piece 4 is fixedly connected with an extension plate 2. The extension plate 2 passes through the first through groove 5 to limit the two symmetrically distributed inner clamping frames 7, reduce the risk of lateral displacement of the inner clamping frame 7 when carrying the twin screw air compressor 16, and enhance the stability of the connection between the inner clamping frame 7 and the silencing housing 1.

[0023] See Figures 1-2The top of the silencing housing 1 on the opposite side is provided with a second through groove 6. A series box 3 is snapped into the second through groove 6. The series box 3 is fixedly installed on the top of the twin-screw air compressor 16. The series box 3 and the twin-screw air compressor 16 are electrically connected by a wire. One end of the wire is connected to the circuit interface inside the series box 3, and the other end is connected to the corresponding electrical interface of the twin-screw air compressor 16. The series box 3 is connected to an external sensor module to realize the monitoring or control function of the operating status of the twin-screw air compressor 16.

[0024] In specific implementation, based on the above implementation, the buffer plate 10 is made of rubber, and the two buffer plates 10 have anti-slip textures on opposite sides to increase the friction between them and the twin-screw air compressor 16, reducing the possibility of the twin-screw air compressor 16 sliding during vibration.

[0025] Before using the compressor, the twin-screw air compressor 16 is clamped between the two inner clamping frames 7, ensuring that the anti-slip textured surface of the buffer plate 10 is in close contact with the outer surface of the twin-screw air compressor 16. The extension plate 2 passes through the first through slot 5 to achieve lateral limitation of the inner clamping frame 7. The two silencer housings 1 are fixedly connected together by the connecting piece 4, and the ends of the inner clamping frames 7 abut against the connecting piece 4 to form a stable support structure. The vibration generated by the twin-screw air compressor 16 during operation is transmitted to the support rod 11 through the buffer plate 10. The support rod 11 drives the pressure plate 13 to slide in the buffer cylinder 12 and compress the spring 15 and the damper 14. The elastic deformation of the spring 15 absorbs high-frequency vibration, and the hydraulic damping of the damper 14 consumes low-frequency vibration energy. At the same time, the centrifugal glass wool material of the sound-absorbing layer 8 absorbs noise transmitted by the air. When maintenance is required, the twin-screw air compressor 16 can be removed from the inner clamping frame 7 after disassembling the series box 3 and the connecting piece 4.

Claims

1. A water-lubricated oil-free twin-screw air compressor, characterized by, The device includes a silencing housing (1), an inner clamping frame (7) is inserted into the inner cavity of the silencing housing (1), the silencing housing (1) and the inner clamping frame (7) are symmetrically distributed, a twin-screw air compressor (16) is clamped between the two inner clamping frames (7), a buffer mechanism is provided on the opposite side of the inner clamping frames (7), a connecting piece (4) is fixedly installed between the two silencing housings (1), and a sound-absorbing layer (8) is fixedly bonded to the inner wall of the silencing housing (1).

2. The water-lubricated, oil-free, twin-screw air compressor of claim 1, wherein: The buffer mechanism includes an installation groove (9) opened in the inner wall of the inner frame (7), a buffer plate (10) is slidably connected to the installation groove (9), a buffer cylinder (12) is fixedly connected to the installation groove (9), a pressure plate (13) is slidably connected inside the buffer cylinder (12), a support rod (11) is inserted through the center of the buffer cylinder (12), one end of the support rod (11) is fixedly connected to the buffer plate (10), the other end of the support rod (11) is fixedly connected to the pressure plate (13), a damper (14) is fixedly connected between the installation groove (9) and the pressure plate (13), and a spring (15) is sleeved on the outer wall of the damper (14).

3. The water-lubricated, oil-free, twin-screw air compressor of claim 1, wherein: The top of the silencing housing (1) on the opposite side is provided with a first through groove (5), and the end of the inner frame (7) away from the connecting piece (4) is fixedly connected with an extension plate (2), the top of the extension plate (2) passing through the first through groove (5).

4. The water-lubricated, oil-free, twin-screw air compressor of claim 1, wherein: The top of the silencing housing (1) on the opposite side is provided with a second through groove (6), and a series box (3) is snapped into the inside of the second through groove (6). The series box (3) is fixedly installed on the top of the twin screw air compressor (16), and the series box (3) is electrically connected to the twin screw air compressor (16).

5. The water-lubricated, oil-free, twin-screw air compressor of claim 2, wherein: The buffer plate (10) is made of rubber, and the two buffer plates (10) have anti-slip textures on opposite sides.

6. The water-lubricated oil-free twin-screw air compressor as described in claim 3, characterized in that: The end of the inner frame (7) away from the extension plate (2) abuts against the connecting piece (4).

Images