Efficient and energy-saving oil-free screw air compressor

Abstract

The utility model belongs to the technical field of air compressors, and particularly relates to an efficient and energy-saving oil-free screw air compressor which comprises a supporting frame, a machine shell is installed on a first fixing base, a water tank is installed on a bottom plate of the supporting frame, cooling water is contained in the water tank, a small water pump is installed on a second fixing base, and the small water pump is connected with the machine shell. A first water guide pipe is installed on the small water pump, a second water guide pipe is installed on the small water pump, the other end of the second water guide pipe is connected with the machine shell, a third water guide pipe is installed on the side wall of the water tank, and a water cavity is formed in the machine shell. The small water pump guides cooling water in the water tank into the water cavity of the machine shell from the second water guide pipe, the cooling water takes away heat on the inner wall of the compression chamber, the male screw and the female screw and cools the male screw and the female screw, continuous high temperature in the compression chamber can be avoided through the structure, the screws are prevented from being deformed or burnt, and the service life of the compression chamber is prolonged. And the cooling effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a high-efficiency and energy-saving oil-free screw air compressor. Background Art

[0002] Oil-free screw air compressor is a high-efficiency and energy-saving air compressor. It adopts special design and technology to avoid the use of oil lubrication, thereby reducing maintenance costs and environmental impact. Oil-free screw air compressor is widely used in environments with strict requirements on air quality because it can provide pure oil-free compressed air.

[0003] An oil-free screw air compressor consists of a main unit, an air intake filter, an exhaust system, and a control system. Air is filtered through the air intake filter before entering the compressor. The oil-free screw air compressor uses a combination of two screws to compress the gas. The compressed air is then sent to a gas storage tank or the site of use. The control system adjusts the speed and output of the air compressor according to load requirements to ensure stable output under any load.

[0004] During the air compression process, the interior of the existing oil-free screw air compressor is easily exposed to a high-temperature environment. Since efficient cooling is not possible, the screw is easily deformed or burned, resulting in poor cooling effect of the device. Therefore, to address the above problems, a high-efficiency and energy-saving oil-free screw air compressor is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a high-efficiency and energy-saving oil-free screw air compressor.

[0006] The technical solution adopted by the utility model to solve its technical problems is a high-efficiency and energy-saving oil-free screw air compressor, comprising a support frame, a vibration damping seat is installed on the support frame, a first fixing seat is installed on the vibration damping seat, a casing is installed on the first fixing seat, a water tank is installed on the bottom plate of the support frame, cooling water is installed in the water tank, a second fixing seat is installed on the water tank, a small water pump is installed on the second fixing seat, a first water guide pipe is installed on the small water pump, the other end of the first water guide pipe passes through the water tank top plate and extends to the bottom of the water tank, a second water guide pipe is installed on the small water pump, the other end of the second water guide pipe is connected to the casing, a third water guide pipe is installed on the side wall of the water tank, the other end of the third water guide pipe is connected to the casing, a water cavity is provided inside the casing, the second water guide pipe and the third water guide pipe extend into the water cavity, a compression chamber is provided inside the casing, a mounting groove is provided inside the casing, a first rotating rod and a second rotating rod are rotatably mounted on the inner wall of the mounting groove, a male screw is fixedly sleeved on the first rotating rod, The first gear is engaged with the first end of the gear train and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the

[0007] Preferably, the vibration damping seat includes a base, a plurality of springs are installed on the base, a support plate is installed on the spring, the support plate is fixedly connected to the first fixed seat, and a plurality of dampers are installed between the support plate and the base. The support plate is driven to vibrate by the air compressor, and the support plate drives the spring to vibrate. The spring and the damper cooperate to achieve a vibration reduction effect, thereby reducing the vibration transmitted to the basic structure such as the support frame, protecting the entire device from damage, and also reducing noise pollution to the surrounding environment, which is beneficial to improving the vibration reduction effect of the device.

[0008] The utility model is beneficial in that:

[0009] 1. The utility model is operated by a small water pump. The small water pump guides the cooling water in the water tank into the water cavity of the casing through the second water pipe. The cooling water takes away the heat from the inner wall of the compression chamber and the male and female screws, and cools the male and female screws. This structure can avoid continuous high temperature inside the compression chamber, thereby preventing the screws from deforming or burning, which is beneficial to improving the cooling effect of the device.

[0010] 2. The utility model drives the support plate to vibrate through the air compressor, and the support plate drives the spring to vibrate. The spring and the damper cooperate to achieve a vibration reduction effect, thereby reducing the vibration transmitted to the basic structure such as the support frame, protecting the entire device from damage, and also reducing noise pollution to the surrounding environment, which is beneficial to improving the vibration reduction effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a schematic diagram of a first-person perspective three-dimensional structure;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the water tank;

[0014] Figure 3 Schematic diagram of the internal three-dimensional structure of the casing;

[0015] Figure 4 Schematic diagram of the three-dimensional structure of the casing;

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the vibration damping seat.

[0017] In the figure: 1. support frame; 2. first fixing seat; 3. casing; 4. water tank; 5. second fixing seat; 6. small water pump; 7. first water pipe; 8. second water pipe; 9. third water pipe; 10. water cavity; 11. compression chamber; 12. mounting groove; 13. first rotating rod; 14. second rotating rod; 15. male screw; 16. female screw; 17. first bearing; 18. second bearing; 19. third bearing; 20. fourth bearing; 21. second gear; 22. first gear; 23. third fixing seat; 24. fixing ring; 25. drive motor; 26. base; 27. spring; 28. support plate; 29. ​​damper; 30. intake pipe; 31. exhaust pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4As shown, a high-efficiency and energy-saving oil-free screw air compressor includes a support frame 1, a vibration damping seat is installed on the support frame 1, a first fixing seat 2 is installed on the vibration damping seat, a casing 3 is installed on the first fixing seat 2, a water tank 4 is installed on the bottom plate of the support frame 1, the water tank 4 is filled with cooling water, a second fixing seat 5 is installed on the water tank 4, a small water pump 6 is installed on the second fixing seat 5, a first water pipe 7 is installed on the small water pump 6, the other end of the first water pipe 7 passes through the top plate of the water tank 4 and extends to the bottom of the water tank 4, a second water pipe 8 is installed on the small water pump 6, the other end of the second water pipe 8 is connected to the casing 3, a third water pipe 9 is installed on the side wall of the water tank 4, and the other end of the third water pipe 9 is connected to the casing 3. The end is connected to the casing 3, a water cavity 10 is provided inside the casing 3, the second water conduit 8 and the third water conduit 9 extend into the water cavity 10, a compression chamber 11 is provided inside the casing 3, a mounting groove 12 is provided inside the casing 3, a first rotating rod 13 and a second rotating rod 14 are rotatably installed on the inner wall of the mounting groove 12, a male screw 15 is fixedly sleeved on the first rotating rod 13, a female screw 16 is fixedly sleeved on the second rotating rod 14, a first bearing 17 and a second bearing 18 are installed at both ends of the first rotating rod 13, the first bearing 17 and the second bearing 18 are assembled in the mounting groove 12, a third bearing 19 and a fourth bearing 20 are installed at both ends of the second rotating rod 14, and the third bearing 1 9 and the fourth bearing 20 are assembled in the mounting groove 12, and the second rotating rod 14 and the first rotating rod 13 are respectively fixed with a second gear 21 and a first gear 22, and the second gear 21 and the first gear 22 are meshed with each other. A third fixing seat 23 is installed on the outer wall of the casing 3, and a fixing ring 24 is installed on the third fixing seat 23. A driving motor 25 is installed on the fixing ring 24, and the output shaft of the driving motor 25 is fixedly connected to the first rotating rod 13. An air inlet pipe 30 and an exhaust pipe 31 are installed on the casing 3; when working, the existing oil-free screw air compressor is easily in a high-temperature environment during the air compression process, and the screw is prone to damage due to the inability to perform efficient cooling. The rod is deformed or burned, resulting in poor cooling effect of the device. The first rotating rod 13 is driven to rotate by the driving motor 25, and the first rotating rod 13 drives the male screw 15 and the first gear 22 thereon to rotate. The first gear 22 drives the second gear 21 to rotate, and the second gear 21 drives the second rotating rod 14 to rotate. The second rotating rod 14 drives the female screw 16 to rotate, thereby realizing synchronous relative rotation of the male screw 15 and the female screw 16. The first bearing 17, the second bearing 18, the third bearing 19, and the fourth bearing 20 at both ends of the first rotating rod 13 and the second rotating rod 14 realize axial positioning of the first rotating rod 13 and the second rotating rod 14 and withstand axial force;When the male screw 15 and the female screw 16 rotate synchronously relative to each other, the tooth groove space of the male screw 15 and the female screw 16, when turning to the opening of the air inlet end wall, is like a big mouth, sucking the external gas from the air inlet pipe 30 into the compression chamber 11. In this process, the tooth tips of the male screw 15 and the female screw 16 are sealed with the casing 3, so that the gas no longer flows out. As the meshing surface gradually moves toward the exhaust end, the tooth groove space gradually becomes smaller, the gas is compressed, and the pressure gradually increases. When the meshing end surface of the male screw 15 and the female screw 16 turns to communicate with the exhaust port of the casing 3, the compressed gas begins to be discharged from the exhaust pipe 31, thereby achieving the compression of the air.

[0020] During this process, the temperature of the male screw 15 and the female screw 16 in the compression chamber 11 gradually increases. The small water pump 6 is operated to guide the cooling water in the water tank 4 into the water cavity 10 of the casing 3 from the second water pipe 8. The cooling water takes away the heat from the inner wall of the compression chamber 11 and the male screw 15 and the female screw 16, and cools the male screw 15 and the female screw 16. This structure can avoid continuous high temperature inside the compression chamber 11, thereby avoiding deformation or burning of the screw, which is beneficial to improving the cooling effect of the device.

[0021] See also Figure 5 As shown, the vibration-damping seat includes a base 26, on which a plurality of springs 27 are installed, and a support plate 28 is installed on the spring 27. The support plate 28 is fixedly connected to the first fixed seat 2, and a plurality of dampers 29 are installed between the support plate 28 and the base 26; when working, the existing oil-free screw air compressor is in the process of compressing air. Due to the fixed arrangement of the device, the vibration generated when the device compresses air can easily cause damage to the device, resulting in poor vibration reduction effect of the device. By installing the spring 27 between the base 26 and the support plate 28, during the rotation of the air compressor, the air compressor drives the support plate 28 to vibrate, and the support plate 28 drives the spring 27 to vibrate. The spring 27 can absorb and disperse the vibration energy through deformation. The spring 27 cooperates with the damper 29 to achieve a vibration reduction effect, thereby reducing the vibration transmitted to the basic structure such as the support frame 1, protecting the entire device from damage, and also reducing the noise pollution to the surrounding environment, which is conducive to improving the vibration reduction effect of the device.

[0022] Working principle: During the air compression process, the interior of the existing oil-free screw air compressor is easily exposed to a high temperature environment. Due to the inability to perform efficient cooling, the screw is easily deformed or burned, resulting in poor cooling effect of the device. The first rotating rod 13 is driven by the driving motor 25 to rotate, and the first rotating rod 13 drives the male screw 15 and the first gear 22 thereon to rotate. The first gear 22 drives the second gear 21 to rotate, and the second gear 21 drives the second rotating rod 14 to rotate. The second rotating rod 14 drives the female screw 16 to rotate, thereby realizing synchronous relative rotation of the male screw 15 and the female screw 16. The first shafts at both ends of the first rotating rod 13 and the second rotating rod 14 are connected to the first shaft 13 and the second rotating rod 14. The bearing 17, the second bearing 18, the third bearing 19 and the fourth bearing 20 realize the axial positioning of the first rotating rod 13 and the second rotating rod 14 and bear the axial force; when the male screw 15 and the female screw 16 rotate synchronously relative to each other, the tooth groove space of the male screw 15 and the female screw 16, when turning to the opening of the intake end wall, is like a big mouth, sucking the external gas from the intake pipe 30 into the compression chamber 11. In this process, the tooth tips of the male screw 15 and the female screw 16 are sealed with the casing 3, so that the gas no longer flows out. As the meshing surface gradually moves toward the exhaust end, the tooth groove space gradually becomes smaller, the gas is compressed, and the pressure gradually increases. When the meshing surface of the male screw 15 and the female screw 16 is closed, the gas is compressed, and the pressure gradually increases. When the end face of the closing is turned to communicate with the exhaust port of the casing 3, the compressed gas begins to be discharged from the exhaust pipe 31, thereby achieving the compression of the air; during this process, the temperature of the male screw 15 and the female screw 16 in the compression chamber 11 gradually increases, and the small water pump 6 is operated, and the small water pump 6 guides the cooling water in the water tank 4 into the water cavity 10 of the casing 3 from the second water pipe 8. The cooling water takes away the heat on the inner wall of the compression chamber 11 and the male screw 15 and the female screw 16, and cools the male screw 15 and the female screw 16. This structure can avoid continuous high temperature inside the compression chamber 11, thereby avoiding deformation or burning of the screw, which is beneficial to improving the cooling effect of the device; the existing oil-free screw During the air compression process of the air compressor, due to the fixed setting of the device, the vibration generated when the device compresses the air can easily cause damage to the device, resulting in poor vibration reduction effect of the device. By installing a spring 27 between the base 26 and the support plate 28, during the rotation of the air compressor, the air compressor drives the support plate 28 to vibrate, and the support plate 28 drives the spring 27 to vibrate. The spring 27 can absorb and disperse the vibration energy through deformation. The spring 27 cooperates with the damper 29 to achieve a vibration reduction effect, thereby reducing the vibration transmitted to the basic structure such as the support frame 1, protecting the entire device from damage, and at the same time reducing noise pollution to the surrounding environment, which is conducive to improving the vibration reduction effect of the device.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A high-efficiency and energy-saving oil-free screw air compressor, characterized by: The invention comprises a support frame (1), a vibration damping seat is installed on the support frame (1), a first fixing seat (2) is installed on the vibration damping seat, a housing (3) is installed on the first fixing seat (2), a water tank (4) is installed on the bottom plate of the support frame (1), cooling water is filled in the water tank (4), a second fixing seat (5) is installed on the water tank (4), a small water pump (6) is installed on the second fixing seat (5), a first water pipe (7) is installed on the small water pump (6), and the other end of the first water pipe (7) passes through The water tank (4) is connected to the top plate and extends to the bottom of the water tank (4). A second water pipe (8) is installed on the small water pump (6). The other end of the second water pipe (8) is connected to the casing (3). A third water pipe (9) is installed on the side wall of the water tank (4). The other end of the third water pipe (9) is connected to the casing (3). A water cavity (10) is provided inside the casing (3). The second water pipe (8) and the third water pipe (9) extend into the water cavity (10). A compression chamber (11) is provided inside the casing (3).

2. The high-efficiency and energy-saving oil-free screw air compressor according to claim 1, characterized in that: A mounting groove (12) is provided inside the housing (3), and a first rotating rod (13) and a second rotating rod (14) are rotatably mounted on the inner wall of the mounting groove (12). A male screw (15) is fixedly sleeved on the first rotating rod (13), and a female screw (16) is fixedly sleeved on the second rotating rod (14).

3. The high-efficiency and energy-saving oil-free screw air compressor according to claim 2, characterized in that: A first bearing (17) and a second bearing (18) are installed at both ends of the first rotating rod (13), and the first bearing (17) and the second bearing (18) are assembled in the installation groove (12).

4. The high-efficiency and energy-saving oil-free screw air compressor according to claim 2, characterized in that: A third bearing (19) and a fourth bearing (20) are installed at both ends of the second rotating rod (14), and the third bearing (19) and the fourth bearing (20) are assembled in the mounting groove (12). A second gear (21) and a first gear (22) are fixedly sleeved on the second rotating rod (14) and the first rotating rod (13), respectively, and the second gear (21) and the first gear (22) are meshed with each other.

5. The high-efficiency and energy-saving oil-free screw air compressor according to claim 1, characterized in that: A third fixing seat (23) is mounted on the outer wall of the housing (3), a fixing ring (24) is mounted on the third fixing seat (23), a driving motor (25) is mounted on the fixing ring (24), an output shaft of the driving motor (25) is fixedly connected to the first rotating rod (13), and an air intake pipe (30) and an exhaust pipe (31) are mounted on the housing (3).

6. The high-efficiency and energy-saving oil-free screw air compressor according to claim 5, characterized in that: The vibration damping seat comprises a base (26), a plurality of springs (27) are mounted on the base (26), a support plate (28) is mounted on the spring (27), the support plate (28) is fixedly connected to the first fixed seat (2), and a plurality of dampers (29) are mounted between the support plate (28) and the base (26).

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