Low-pressure oil-free screw blower
By using motors and couplings to drive the blower main engine in low-pressure oil-free screw blowers, and combining multiple baffles and safety devices, the problems of easy equipment damage and low safety are solved, and clean, efficient and safe are achieved. Aerodynamic supply.
Patent Information
- Application Number
- CN202420317050.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-02-20
AI Technical Summary
Existing low-pressure screw blowers are prone to damage when used in different environments, and the safety of staff is low, and there is a risk of collision and accidental contact injury.
A low-pressure oil-free screw blower including base, frame, bracket, blower main engine, coupling, motor, exhaust pipe, air filter tube, frequency converter, touch screen, emergency stop switch and multiple baffles was designed. The motor and coupling drive the blower main engine to rotate, use multiple baffles for blocking and dissipating heat, and set up silencers and safety valves to reduce noise and improve safety.
It realizes a clean, efficient and reliable aerodynamic supply, improves the safety and convenience of equipment, and ensures safety and reliability during normal operation.
Smart Images
Figure CN222228850U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil-free screw blowers, in particular to a low-pressure oil-free screw blower. Background Art
[0002] Oil-free screw blowers are generally composed of outer cover, main engine, motor, air filter, oil pump tank and oil filter. Unlike Roots blowers, screw blowers achieve internal compression during gas transportation in the cavity. Therefore, screw blowers have most of the advantages of Roots and are more efficient than Roots. The gas transportation and compression process is continuous and progressive, with lower air flow pulsation, and exhaust noise and temperature control are better than traditional blowers such as Roots.
[0003] At present, in order to improve the use effect of oil-free screw blower, a Chinese patent with prior art publication number CN206129603U discloses a low-pressure screw blower structure. The utility model includes a body, an exhaust end seat and a motor. The body is a hollow shell with an air inlet arranged on its circumference. The exhaust end seat is connected to the exhaust end of the body by screws. The exhaust end seat is provided with an exhaust port and a lubricating oil spray port. The motor is connected to the exhaust end seat by a flange.
[0004] However, the above-mentioned prior art still has the following problems when in use: due to the different use environments of the above-mentioned low-pressure screw blowers, the low-pressure screw blowers are easily damaged by collisions, and the staff are easily injured by accidentally touching the low-pressure screw blowers, and the safety of use is relatively low. Based on this, the utility model provides a clean, efficient, safe and reliable low-pressure oil-free screw blower. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a low-pressure oil-free screw blower, which drives the blower main unit to rotate through a motor and a coupling to achieve air compression and transportation, can provide clean, efficient and reliable air power, is suitable for various fields, and uses multiple baffles for shielding, so that the low-pressure oil-free screw drum cooling fan is safer and more reliable during normal operation, so as to solve the problems arising from the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-pressure oil-free screw blower, comprising a base, a frame fixedly provided on the top of the base, a bracket provided in the frame, a blower main unit fixedly provided on one side of the top of the bracket, one end of the blower main unit is connected to a motor through a coupling, the motor is fixed to the top of the bracket, an exhaust pipe is fixedly connected to the bottom of the blower main unit, the exhaust pipe is fixed to the bracket, a first air filter tube is fixedly connected to the top of the blower main unit, one end of the first air filter tube is fixedly connected to a second air filter tube, a frequency converter is provided in front of the second air filter tube, a touch screen and an emergency stop switch are provided in front of the frequency converter, and the emergency stop switch is provided on one side of the touch screen, and the emergency stop switch and the touch screen are both electrically connected to the frequency converter.
[0007] In a preferred embodiment, a plurality of baffles are hinged in the frame, and the plurality of baffles are connected to the frame via door locks, so as to improve the connection firmness between the baffles and the frame.
[0008] In a preferred embodiment, a muffler and a safety valve are fixedly provided at one end of the exhaust pipe, the safety valve is arranged on one side of the muffler, and one end of the exhaust pipe passes through the outer wall of the baffle. The use of a muffler can reduce the noise generated by the exhaust, and the provision of a safety valve can improve the exhaust safety.
[0009] In a preferred embodiment, an observation port is provided on the baffle in front of the touch screen, and the touch screen passes through the observation port, so as to facilitate the operation of the touch screen.
[0010] In a preferred embodiment, a protective cover is provided on the outside of the observation port, the protective cover is made of an acrylic plate, the top of the protective cover is hinged to the baffle, and the protective cover and the baffle are locked by a key lock to improve the connection firmness between the protective cover and the baffle.
[0011] In a preferred embodiment, a frame-shaped sealing strip is fixedly provided on the inner wall of the protective cover, a frame-shaped sealing groove is opened on the outer wall of the front end of the baffle, and the frame-shaped sealing strip is inserted into the frame-shaped sealing groove to improve the sealing between the protective cover and the baffle.
[0012] In a preferred embodiment, the bottom of the bracket is fixed to the top of the base by multiple shock-absorbing pads to play a buffering role. A center bracket is sleeved on the outside of the coupling, and the center bracket is fixed to the top of the bracket. Cooling fans are fixedly embedded on multiple baffles to play a heat dissipation role.
[0013] Technical effects and advantages of the utility model:
[0014] 1. The utility model drives the blower main unit to rotate through a motor and a coupling to achieve air compression and transportation, can provide clean, efficient and reliable air power, is suitable for various fields, and uses multiple baffles for shielding, so that the low-pressure oil-free screw drum cooling fan can be safer and more reliable during normal operation. The low-pressure oil-free screw drum cooling fan can be conveniently controlled by using a touch screen, an emergency stop switch and a frequency converter, making it more convenient to use.
[0015] 2. By hingedly connecting a protective cover to the outer wall of the baffle, and using the protective cover to cover the outside of the touch screen and the emergency stop switch, the frame-shaped sealing strip on the inner wall of the protective cover is inserted into the frame-shaped sealing groove, which can improve the sealing between the protective cover and the baffle. The protective cover is made of acrylic board, and the staff can see the content displayed on the touch screen through the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is the overall structural front view of the utility model;
[0018] Figure 3 This is a diagram of the internal structure of the framework of the utility model;
[0019] Figure 4 This is a schematic diagram of the protective cover of the utility model when it is opened;
[0020] Figure 5 This is a structural diagram of the motor, coupling, center bracket and blower host of the utility model.
[0021] The accompanying drawings are marked as follows: 1. base; 2. frame; 3. bracket; 4. blower main unit; 5. coupling; 6. motor; 7. exhaust pipe; 8. first air filter tube; 9. second air filter tube; 10. frequency converter; 11. touch screen; 12. emergency stop switch; 13. baffle; 14. muffler; 15. safety valve; 16. observation port; 17. protective cover; 18. frame-shaped sealing strip; 19. frame-shaped sealing groove; 20. shock-absorbing pad; 21. center bracket; 22. cooling fan. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Refer to the instruction manual Figure 1-5The utility model provides a low-pressure oil-free screw blower, including a base 1, a frame 2 is fixedly provided on the top of the base 1, a bracket 3 is provided inside the frame 2, a blower main unit 4 is fixedly provided on one side of the top of the bracket 3, one end of the blower main unit 4 is connected to a motor 6 through a coupling 5, the motor 6 is fixed to the top of the bracket 3, an exhaust pipe 7 is fixedly connected to the bottom of the blower main unit 4, the exhaust pipe 7 is fixed to the bracket 3, a first air filter pipe 8 is fixedly connected to the top of the blower main unit 4, and one end of the first air filter pipe 8 is fixedly connected to a second air filter pipe 9;
[0024] In addition, a frequency conversion box 10 is provided in front of the second air filter tube 9, a touch screen 11 and an emergency stop switch 12 are provided in front of the frequency conversion box 10, and the emergency stop switch 12 is provided on one side of the touch screen 11, and the emergency stop switch 12 and the touch screen 11 are both electrically connected to the frequency conversion box 10, and a plurality of baffles 13 are hinged in the frame 2, and the plurality of baffles 13 are connected to the frame 2 through door locks, so as to improve the connection firmness between the baffles 13 and the frame 2;
[0025] Moreover, a muffler 14 and a safety valve 15 are fixedly provided at one end of the exhaust pipe 7, and the safety valve 15 is provided on one side of the muffler 14. One end of the exhaust pipe 7 passes through the outer wall of the baffle 13. The use of the muffler 14 can reduce the noise generated by the exhaust, and the provision of the safety valve 15 can improve the exhaust safety. An observation port 16 is provided on the baffle 13 located in front of the touch screen 11, and the touch screen 11 passes through the observation port 16, which is convenient for operating the touch screen 11.
[0026] The bottom of the bracket 3 is fixed to the top of the base 1 through multiple shock-absorbing pads 20 to play a buffering role. A center bracket 21 is sleeved on the outside of the coupling 5, and the center bracket 21 is fixed to the top of the bracket 3. Cooling fans 22 are fixedly embedded on multiple baffles 13 to play a heat dissipation role.
[0027] When in use, the motor 6 and the coupling 5 are used to drive the blower main unit 4 to rotate to achieve air compression and transportation. Through the processes of suction, compression, cooling, lubrication, sealing and exhaust, the low-pressure oil-free screw drum cooling fan 22 can provide clean, efficient and reliable air power, which is suitable for various fields, and multiple baffles 13 are used for shielding, so that the low-pressure oil-free screw drum cooling fan 22 can be safer and more reliable during normal operation. The touch screen 11, the emergency stop switch 12 and the frequency converter 10 are used to conveniently control the low-pressure oil-free screw drum cooling fan 22, making it more convenient to use.
[0028] Refer to the instruction manual Figure 1-5A protective cover 17 is provided on the outside of the observation port 16. The top of the protective cover 17 is hinged to the baffle 13. The protective cover 17 is made of an acrylic plate. The protective cover 17 and the baffle 13 are locked by a key lock to improve the connection firmness between the protective cover 17 and the baffle 13. A frame-shaped sealing strip 18 is fixedly provided on the inner wall of the protective cover 17. A frame-shaped sealing groove 19 is opened on the outer wall of the front end of the baffle 13. The frame-shaped sealing strip 18 is inserted into the frame-shaped sealing groove 19 to improve the sealing between the protective cover 17 and the baffle 13.
[0029] By hingedly connecting a protective cover 17 to the outer wall of the baffle 13 and using the protective cover 17 to cover the outside of the touch screen 11 and the emergency stop switch 12, and inserting a frame-shaped sealing strip 18 on the inner wall of the protective cover 17 into a frame-shaped sealing groove 19, the sealing between the protective cover 17 and the baffle 13 can be improved. The protective cover 17 is made of an acrylic plate, and the staff can see the content displayed on the touch screen 11 through the protective cover 17.
[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A low-pressure oil-free screw blower, comprising a base (1), characterized in that: A frame (2) is fixedly provided on the top of the base (1), a bracket (3) is provided inside the frame (2), a blower main unit (4) is fixedly provided on one side of the top of the bracket (3), one end of the blower main unit (4) is connected to a motor (6) via a coupling (5), and the motor (6) is fixed on the top of the bracket (3); The bottom of the blower main unit (4) is fixedly connected to an exhaust pipe (7), and the exhaust pipe (7) is fixed to the bracket (3). The top of the blower main unit (4) is fixedly connected to a first air filter pipe (8), and one end of the first air filter pipe (8) is fixedly connected to a second air filter pipe (9). A frequency converter (10) is provided in front of the second air filter pipe (9), and a touch screen (11) and an emergency stop switch (12) are provided in front of the frequency converter (10), and the emergency stop switch (12) is provided on one side of the touch screen (11). The emergency stop switch (12) and the touch screen (11) are both electrically connected to the frequency converter (10).
2. A low-pressure oil-free screw blower according to claim 1, characterized in that: A plurality of baffles (13) are hingedly connected inside the frame (2); the plurality of baffles (13) are connected to the frame (2) via door locks, so as to improve the firmness of the connection between the baffles (13) and the frame (2).
3. A low-pressure oil-free screw blower according to claim 2, characterized in that: A muffler (14) and a safety valve (15) are fixedly provided at one end of the exhaust pipe (7), wherein the safety valve (15) is provided on one side of the muffler (14), and one end of the exhaust pipe (7) passes through the outer wall of the baffle (13).
4. A low-pressure oil-free screw blower according to claim 2, characterized in that: An observation port (16) is provided on the baffle (13) located in front of the touch screen (11), and the touch screen (11) passes through the observation port (16), so that the touch screen (11) can be easily operated.
5. A low-pressure oil-free screw blower according to claim 4, characterized in that: A protective cover (17) is provided on the outside of the observation port (16), and the protective cover (17) is made of an acrylic plate. The top of the protective cover (17) is hinged to the baffle (13), and the protective cover (17) and the baffle (13) are locked by a key lock.
6. A low-pressure oil-free screw blower according to claim 5, characterized in that: A frame-shaped sealing strip (18) is fixedly provided on the inner wall of the protective cover (17), a frame-shaped sealing groove (19) is provided on the outer wall of the front end of the baffle (13), and the frame-shaped sealing strip (18) is inserted into the frame-shaped sealing groove (19) to improve the sealing performance between the protective cover (17) and the baffle (13).
7. A low-pressure oil-free screw blower according to claim 2, characterized in that: The bottom of the bracket (3) is fixed to the top of the base (1) via a plurality of shock-absorbing pads (20) for providing a buffering effect. A central bracket (21) is sleeved on the outer side of the coupling (5), and the central bracket (21) is fixed to the top of the bracket (3). A plurality of baffles (13) are fixedly embedded with cooling fans (22) for providing a heat dissipation effect.