High efficiency sealed oil-free screw blower

Abstract

The application discloses a kind of high-efficiency sealed oil-free screw blower, including casing, oil-free screw blower body, air filter, the casing side fixed support frame, the support frame one side fixed installation motor, the motor rotating shaft is fixedly connected with the one end of connecting rod, the other end of connecting rod is rotatably connected in casing, the outer surface of connecting rod is fixedly connected with gear one.The oil-free screw blower of the application can be easily slid out of the casing, so that the staff can maintain and repair the oil-free screw blower without entering the casing, which is more convenient for the staff to operate, expands the operation range of the staff, effectively prevents the staff from being bumped in the casing, and through the setting of connecting ring block one, connecting ring block two, sealing washer one and limiting rod, the installation and disassembly of connecting pipe one and air outlet pipe are facilitated, which is convenient to operate, and through the setting of sealing washer one and sealing washer two, the sealing property of the oil-free screw blower can be effectively improved, and the use effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of oil-free screw blower technology, specifically a high-efficiency sealed oil-free screw blower. Background Technology

[0002] Oil-free screw blowers are a new type of oil-free blower, mainly used for low-pressure air ventilation, heat dissipation, and other air treatment applications within various temperature ranges. Due to their energy-saving, environmentally friendly, high-efficiency, compact structure, small size, light weight, low noise, and high reliability, oil-free screw blowers are suitable for various industries, including wastewater treatment, textiles, food, pharmaceuticals, petroleum, chemicals, metallurgy, power, machinery, and environmental protection.

[0003] For example, Chinese utility model patent CN207568835U discloses a low-noise twin-screw blower, including a soundproof enclosure. The top of the enclosure has an air inlet, an inverter cabinet is located on the upper inner side of the enclosure, and a touchscreen controller is located on the upper outer side. A first damping pad is fixedly connected to the bottom of the enclosure. The exhaust fan on the enclosure is driven by the high-speed spindle of the screw blower, directly dissipating heat from the enclosure. This eliminates the need for an axial flow fan, increasing the internal space of the enclosure, accelerating heat dissipation, reducing costs, and saving electricity. Damping plates and pads are installed in areas prone to significant vibration, reducing vibration amplitude and noise. Combined with the soundproofing effect of the enclosure, the overall noise reduction is excellent. This device is reasonably designed, has low noise, and offers good safety and operational stability.

[0004] However, the existing high-efficiency sealed oil-free screw blowers are equipped with soundproof enclosures, which makes it inconvenient for staff to maintain and repair the screw blowers during use.

[0005] Therefore, we propose a high-efficiency sealed oil-free screw blower to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency sealed oil-free screw blower to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency sealed oil-free screw blower, comprising a housing, an oil-free screw blower body, and an air filter. A support frame is fixedly connected to one side of the housing, and a motor is fixedly installed on one side of the support frame. One end of a connecting rod is fixedly connected to the motor shaft, and the other end of the connecting rod is rotatably connected to the housing. A gear is fixedly connected to the outer surface of the connecting rod, and a gear two is meshed with one side of the gear one. A linkage rod is fixedly connected inside the gear two, and a driving wheel is fixedly connected to the outer surface of the linkage rod. The driving wheel is connected to a driven wheel via a conveyor belt. Driven wheel is fixedly connected to linkage rod 2. Linkage rod 1 and linkage rod 2 are respectively fixedly connected to one end of a lead screw. The other end of the lead screw is rotatably connected to the machine housing. A sliding groove is opened on the bottom surface of the machine housing. The bottom surface of the oil-free screw blower body is fixedly connected to a mounting plate. The mounting plate is installed on a fixed plate by bolts. The bottom surface of the fixed plate is fixedly connected to a slider. The slider is slidably connected to the sliding groove. Threaded sleeves are respectively embedded at both ends of the slider. The threaded sleeves are engaged with the lead screw. Multiple rollers are fixedly installed on the bottom surface of the fixed plate. A groove is opened on one side of the bottom of the machine housing. The rollers are located in the groove.

[0008] A threaded hole is opened on one side of the housing, and the threaded hole is internally connected to the threaded part of the air outlet pipe. The oil-free screw blower body is provided with a connecting pipe. A connecting ring block is fixedly connected to the outer surface of the end of the connecting pipe. A limiting ring block is fixedly connected to the outer surface of the end of the air outlet pipe. A connecting ring block is rotatably connected to the outer surface of the air outlet pipe. The limiting ring block is movably connected to the inner part of the connecting ring block. A sealing gasket is fixedly connected to the side of the connecting ring block near the connecting ring block. The other side of the sealing gasket contacts the connecting ring block. Limiting rods are fixedly connected to both ends of the side of the connecting ring block away from the connecting ring block. Limiting holes are opened at both ends of one side of the housing. The limiting rods are slidably connected to the limiting holes.

[0009] Preferably, multiple positioning grooves are formed on the side of the first connecting ring block near the second connecting ring block, and multiple positioning rods are fixedly connected to the side of the second connecting ring block near the first connecting ring block, with the positioning rods engaging the positioning grooves.

[0010] Preferably, the inner wall of the connecting ring block two has a built-in ring groove one, and the limiting ring block one is movably connected to the built-in ring groove one.

[0011] Preferably, the housing has a door on one side, the first linkage rod is rotatably connected to the support frame and the inside of the housing, and the second linkage rod is rotatably connected to the support frame and the inside of the housing.

[0012] Preferably, the fixed plate is slidably connected to the housing, and limiting blocks are fixedly connected to both ends of the bottom surface of the fixed plate. Limiting grooves are respectively opened at both ends of the bottom surface of the housing, and the limiting blocks are slidably connected to the limiting grooves.

[0013] Preferably, the oil-free screw blower body is provided with a second connecting pipe, and a fixing ring block is fixedly connected to the top of the second connecting pipe. Multiple positioning grooves are opened on the top surface of the fixing ring block.

[0014] Preferably, the bottom outer surface of the air filter is fixedly connected to the second limiting ring block, and the outer surface of the air filter is movably connected to the third connecting ring block.

[0015] Preferably, the inner wall of the connecting ring block three has a built-in annular groove two, and the limiting ring block two is movably connected to the built-in annular groove two.

[0016] Preferably, multiple positioning rods are fixedly connected to the bottom surface of the connecting ring block three, the positioning rods are engaged with the positioning grooves, and a sealing washer is fixedly connected to the bottom surface of the connecting ring block three, with the bottom surface of the sealing washer contacting the top surface of the fixed ring block.

[0017] Preferably, the bottom surface of the air filter is fixedly connected to a connecting pipe, the bottom surface of the connecting pipe is fixedly connected to a threaded pipe, and the external thread of the threaded pipe is connected to the internal thread of the fixing ring block.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention, by incorporating a motor, connecting rod, gear one, gear two, linkage rod one, linkage rod two, driving wheel, driven wheel, lead screw, slider, fixing plate, and rollers, facilitates the sliding of the oil-free screw blower out of the casing. This allows operators to maintain and repair the blower without entering the casing, making operation more convenient and expanding the operator's working range. It also effectively prevents accidents caused by personnel inside the casing. Furthermore, the inclusion of connecting ring block one, connecting ring block two, sealing gasket one, and limiting rod facilitates the installation and disassembly of connecting pipe one and the outlet pipe, enhancing operational convenience. Finally, the inclusion of connecting ring block one, connecting ring block two, sealing gasket one, fixing ring block, connecting ring block three, and sealing gasket two effectively improves the sealing performance of the oil-free screw blower, ensuring optimal performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention from another perspective;

[0022] Figure 3 This is a front view schematic diagram of a partial structure of the present invention;

[0023] Figure 4 This is a frontal cross-sectional view of the present invention;

[0024] Figure 5 This is a schematic diagram of the top cross-sectional structure of a portion of the present invention;

[0025] Figure 6 This is a schematic diagram of the top cross-sectional structure of a portion of the present invention;

[0026] Figure 7 This is a schematic diagram of a partial side cross-sectional view of the present invention;

[0027] Figure 8 This is a schematic diagram of a partial cross-sectional view of the structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the structure of the oil-free screw blower body after it slides out, according to the present invention.

[0029] In the diagram: 1. Housing; 2. Support frame; 3. Motor; 4. Gear 1; 5. Gear 2; 6. Linkage rod 1; 7. Drive wheel; 8. Conveyor belt; 9. Driven wheel; 10. Linkage rod 2; 11. Lead screw; 12. Slide groove; 13. Limiting groove; 14. Groove opening; 15. Oil-free screw blower body; 151. Mounting plate; 16. Fixing plate; 17. Slider; 171. Threaded sleeve; 18. Limiting block; 19. Roller; 20. Box door; 21. Connecting pipe 1; 22. Connecting ring block 1; 221. Positioning groove 1. Threaded hole; 23. Air outlet pipe; 24. Limiting ring block 1; 25. Connecting ring block 2; 25. Internal ring groove 1; 26. Sealing gasket 1; 27. Positioning rod 1; 28. Limiting rod; 29. ​​Limiting hole; 30. Connecting pipe 2; 31. Fixing ring block; 311. Positioning groove 2; 32. Air filter; 321. Limiting ring block 2; 33. Connecting ring block 3; 331. Internal ring groove 2; 34. Positioning rod 2; 35. Sealing gasket 2; 36. Connecting pipe; 37. Threaded pipe; 38. Connecting rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] Please see Figure 1-9This is the first embodiment of the present invention, which provides a technical solution: a high-efficiency sealed oil-free screw blower, including a housing 1, an oil-free screw blower body 15, and an air filter 32. A support frame 2 is fixedly connected to one side of the housing 1, and a motor 3 is fixedly installed on one side of the support frame 2. One end of a connecting rod 38 is fixedly connected to the shaft of the motor 3, and the other end of the connecting rod 38 is rotatably connected to the inside of the housing 1. A gear 4 is fixedly connected to the outer surface of the connecting rod 38, and a gear 5 is meshed with one side of the gear 4. A linkage rod 6 is fixedly connected inside the gear 5. A drive wheel 7 is fixedly connected to the outer surface of the linkage rod 6. The drive wheel 7 is connected to a driven wheel 9 via a conveyor belt 8. A linkage rod 10 is fixedly connected inside the driven wheel 9. One end of the linkage rod 10 is fixedly connected to one end of the lead screw 11, and the other end of the lead screw 11 is rotatably connected to the inside of the housing 1. A sliding groove 12 is opened on the bottom surface of the housing 1. The bottom surface of the oilless screw blower body 15 is fixedly connected to the mounting plate 151. The mounting plate 151 is installed on the fixing plate 16 by bolts, which facilitates the disassembly and assembly of the oilless screw blower body 15. The bottom surface of the fixing plate 16 is fixedly connected to the slider 17. The slider 17 is slidably connected to the sliding groove 12. Threaded sleeves 171 are respectively embedded in both ends of the slider 17. The threaded sleeves 171 are engaged with the lead screw 11. Multiple rollers 19 are fixedly installed on the bottom surface of the fixing plate 16. A slot 14 is opened on one side of the bottom of the housing 1. The rollers 19 are located in the slot 14, which facilitates the storage of the rollers 19.

[0033] A threaded hole 23 is opened on one side of the housing 1. The threaded hole 23 is internally threaded to the threaded part of the air outlet pipe 24. Only the part of the outer surface of the air outlet pipe 24 connected to the threaded hole 23 is threaded, and the rest is smooth. The oilless screw blower body 15 is provided with a connecting pipe 1 21. The outer surface of the end of the connecting pipe 1 21 is fixedly connected to the connecting ring block 1 22. The outer surface of the end of the air outlet pipe 24 is fixedly connected to the limiting ring block 1 241. The outer surface of the air outlet pipe 24 is rotatably connected to the connecting ring block 25. The limiting ring block 1 241 is movably connected to the inner part of the connecting ring block 25. The side of the connecting ring block 25 closest to the connecting ring block 1 22 is fixedly connected to... One side of the sealing gasket 26 and the other side of the sealing gasket 26 contact the connecting ring block 22. Limiting rods 28 are fixed to both ends of the connecting ring block 25 on the side away from the connecting ring block 22. Limiting holes 29 are respectively opened at both ends of one side of the housing 1. The limiting rods 28 slide through the limiting holes 29, limiting the connecting ring block 25. When the air outlet pipe 24 is rotated, the connecting ring block 25 will not rotate, keeping the connecting ring block 25 and the sealing gasket 26 moving horizontally. This prevents the sealing gasket 26 from rotating and twisting, improving the tightness of the connection and ensuring airflow. Air enters through the air inlet of the housing 1, is filtered by the air filter 32, and is then pressurized by the oil-free screw blower body 15 before being discharged through the air outlet pipe 24.

[0034] Example 2:

[0035] Please see Figure 1-9This is the second embodiment of the present invention. Based on the previous embodiment, multiple positioning grooves 221 are opened on the side of the connecting ring block 22 near the connecting ring block 25. Multiple positioning rods 27 are fixedly connected to the side of the connecting ring block 25 near the connecting ring block 22. The positioning rods 27 engage with the positioning grooves 221, which can position the connecting ring block 25 during installation.

[0036] An internal annular groove 251 is formed on the inner wall of the connecting ring block 25, and the limiting ring block 241 is movably connected to the internal annular groove 251. The connecting ring block 25 can be limited, and the movement of the connecting ring block 25 is driven by the rotation of the air outlet pipe 24.

[0037] A door 20 is provided on one side of the housing 1. The door 20 is hinged. The first linkage rod 6 is rotatably connected to the support frame 2 and the inside of the housing 1. The second linkage rod 10 is rotatably connected to the support frame 2 and the inside of the housing 1. This can limit the movement of the lead screw 11 and improve the stability of the rotation of the lead screw 11.

[0038] The fixed plate 16 is slidably connected to the housing 1. Limiting blocks 18 are fixedly connected to both ends of the bottom surface of the fixed plate 16. Limiting grooves 13 are opened at both ends of the bottom surface of the housing 1. The limiting blocks 18 are slidably connected to the limiting grooves 13 to improve the stability of the movement of the fixed plate 16 and the oil-free screw blower body 15.

[0039] The oil-free screw blower body 15 is provided with a connecting pipe 2 30, and a fixing ring block 31 is fixedly connected to the top of the connecting pipe 2 30. Multiple positioning grooves 2 311 are opened on the top surface of the fixing ring block 31.

[0040] The bottom outer surface of the air filter 32 is fixedly connected to the second limiting ring block 321, and the outer surface of the air filter 32 is movably connected to the third connecting ring block 33.

[0041] An internal annular groove 331 is formed on the inner wall of the connecting ring block 33, and the limiting ring block 321 is movably connected within the internal annular groove 331. When the air filter 32 is rotated for installation, the sealing gasket 35 will not rotate with it, thus improving the tightness of the connection of the sealing gasket 35.

[0042] Multiple positioning rods 34 are fixed to the bottom surface of the connecting ring block 33. The positioning rods 34 engage with the positioning grooves 311, which can position the connecting ring block 33 and the sealing gasket 35. The sealing gasket 35 is fixed to the bottom surface of the connecting ring block 33, and the bottom surface of the sealing gasket 35 contacts the top surface of the fixing ring block 31.

[0043] The air filter 32 is fixedly connected to the bottom of the connecting pipe 36, and the bottom of the connecting pipe 36 is fixedly connected to the threaded pipe 37. The external thread of the threaded pipe 37 connects to the internal thread of the fixing ring block 31. The air filter 32 is internally connected to the connecting pipe 36, the threaded pipe 37, and the connecting pipe 30. During installation of the air filter 32, the positioning rod 34 on the bottom of the connecting ring block 33 is engaged with the positioning groove 311 on the fixing ring block 31, ensuring the sealing gasket 35 is in close contact with the top surface of the fixing ring block 31. Then, the air filter 32 is rotated, causing the threaded pipe 37 to rotate and screw into the threaded part on the inner wall of the fixing ring block 31, thus completing the installation. The air filter 32 filters the incoming air. The threaded pipe 37 and other structures facilitate the installation and removal of the air filter 32. The sealing gasket 35 improves the sealing performance between the air filter 32 and the fixing ring block 31, preventing dust and other impurities from entering through the gap between the connecting ring block 33 and the fixing ring block 31, thus improving sealing performance and ensuring a good seal.

[0044] Example 3:

[0045] Please see Figure 1-9 This is the third embodiment of the present invention, based on the above two embodiments. In actual use, when the oilless screw blower body 15 needs maintenance and repair, the box door 20 is opened, and the air outlet pipe 24 and the limiting ring block 241 are rotated to drive the connecting ring block 25 and the sealing gasket 26 to move horizontally, so that the sealing gasket 26 and the positioning rod 27 are disengaged from the connecting ring block 22. The motor 3 is connected to an external power source, and by starting the motor 3, the connecting rod 38 and the gear 4 are rotated, which in turn drives the gear 5, the linkage rod 6, the driving wheel 7, and the lead screw 11 to rotate, and through the conveyor belt 8, drives the driven wheel 9 and the linkage rod on the other side. 2.10. The lead screw 11 rotates synchronously, which can drive the slider 17, the fixed plate 16, and the oilless screw blower body 15 to move. While the fixed plate 16 moves, the rollers 19 set on its bottom surface roll on the ground to maintain the stability of the movement. The movement can be stopped when the oilless screw blower body 15 has completely slid out of the housing 1. The staff can then perform maintenance and repair on the oilless screw blower body 15 without entering the housing 1, which is more convenient for the staff to operate, expands the staff's operating range, and effectively prevents the staff from being bumped or injured inside the housing 1.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency sealed oil-free screw blower, comprising a housing (1), an oil-free screw blower body (15), and an air filter (32), characterized in that: A support frame (2) is fixedly connected to one side of the housing (1), and a motor (3) is fixedly installed on one side of the support frame (2). One end of a connecting rod (38) is fixedly connected to the shaft of the motor (3), and the other end of the connecting rod (38) is rotatably connected to the inside of the housing (1). A gear (4) is fixedly connected to the outer surface of the connecting rod (38), and a gear (5) meshes with one side of the gear (4). A linkage rod (6) is fixedly connected inside the gear (5), and a drive wheel (7) is fixedly connected to the outer surface of the linkage rod (6). The drive wheel (7) is connected to a driven wheel (9) via a conveyor belt (8). A linkage rod (10) is fixedly connected inside the driven wheel (9), and a lead screw (11) is fixedly connected to the ends of the linkage rod (6) and the linkage rod (10). One end of the screw (11) is rotatably connected to the housing (1). A groove (12) is opened on the bottom surface of the housing (1). The bottom surface of the oilless screw blower body (15) is fixedly connected to the mounting plate (151). The mounting plate (151) is installed on the fixing plate (16) by bolts. The bottom surface of the fixing plate (16) is fixedly connected to the slider (17). The slider (17) is slidably connected to the groove (12). Threaded sleeves (171) are respectively embedded in both ends of the slider (17). The threaded sleeves (171) are engaged with the screw (11). Multiple rollers (19) are fixedly installed on the bottom surface of the fixing plate (16). A slot (14) is opened on one side of the bottom of the housing (1). The rollers (19) are located in the slot (14). A threaded hole (23) is provided on one side of the housing (1). The threaded hole (23) is internally threaded to the threaded part of the air outlet pipe (24). The oil-free screw blower body (15) is provided with a connecting pipe (21). A connecting ring block (22) is fixedly connected to the outer surface of the end of the connecting pipe (21). A limiting ring block (241) is fixedly connected to the outer surface of the end of the air outlet pipe (24). A connecting ring block (25) is rotatably connected to the outer surface of the air outlet pipe (24). The limiting ring block (241) is rotatably connected to the outer surface of the air outlet pipe (24). Inside the movable connecting ring block two (25), the side of the connecting ring block two (25) close to the side of the connecting ring block one (22) is fixed to the side of the sealing gasket one (26), and the other side of the sealing gasket one (26) contacts the connecting ring block one (22). The two ends of the side of the connecting ring block two (25) away from the connecting ring block one (22) are respectively fixed to the limiting rods (28). The two ends of the housing (1) are respectively opened with limiting holes (29), and the limiting rods (28) are slidably connected to the limiting holes (29).

2. The high-efficiency sealed oil-free screw blower according to claim 1, characterized in that: Multiple positioning grooves (221) are provided on the side of the connecting ring block 1 (22) near the connecting ring block 2 (25). Multiple positioning rods (27) are fixed on the side of the connecting ring block 2 (25) near the connecting ring block 1 (22). The positioning rods (27) engage with the positioning grooves (221).

3. The high-efficiency sealed oil-free screw blower according to claim 2, characterized in that: The inner wall of the connecting ring block 2 (25) has a built-in ring groove 1 (251), and the limiting ring block 1 (241) is movably connected to the built-in ring groove 1 (251).

4. The high-efficiency sealed oil-free screw blower according to claim 3, characterized in that: The housing (1) is provided with a door (20) on one side. The first linkage rod (6) is rotatably connected to the support frame (2) and the inside of the housing (1). The second linkage rod (10) is rotatably connected to the support frame (2) and the inside of the housing (1).

5. The high-efficiency sealed oil-free screw blower according to claim 4, characterized in that: The fixed plate (16) is slidably connected to the housing (1), and the two ends of the bottom surface of the fixed plate (16) are respectively fixedly connected to the limiting blocks (18). The two ends of the bottom surface of the housing (1) are respectively opened with limiting grooves (13), and the limiting blocks (18) are slidably connected to the limiting grooves (13).

6. The high-efficiency sealed oil-free screw blower according to claim 5, characterized in that: The oil-free screw blower body (15) is provided with a connecting pipe two (30), and a fixing ring block (31) is fixedly connected to the top of the connecting pipe two (30). Multiple positioning grooves two (311) are opened on the top surface of the fixing ring block (31).

7. A high-efficiency sealed oil-free screw blower according to claim 6, characterized in that: The bottom outer surface of the air filter (32) is fixedly connected to the limiting ring block two (321), and the outer surface of the air filter (32) is movably connected to the connecting ring block three (33).

8. The high-efficiency sealed oil-free screw blower according to claim 7, characterized in that: The inner wall of the connecting ring block three (33) has a built-in ring groove two (331), and the limiting ring block two (321) is movably connected to the built-in ring groove two (331).

9. A high-efficiency sealed oil-free screw blower according to claim 8, characterized in that: Multiple positioning rods (34) are fixed to the bottom surface of the connecting ring block three (33), the positioning rods (34) are engaged with the positioning grooves (311), the sealing gaskets (35) are fixed to the bottom surface of the connecting ring block three (33), and the bottom surface of the sealing gaskets (35) contacts the top surface of the fixing ring block (31).

10. A high-efficiency sealed oil-free screw blower according to claim 9, characterized in that: The bottom surface of the air filter (32) is fixed to the connecting pipe (36), the bottom surface of the connecting pipe (36) is fixed to the threaded pipe (37), and the external thread of the threaded pipe (37) is connected to the internal thread of the fixing ring block (31).

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