Oil-free screw fan

Abstract

The utility model discloses an oil-free screw fan, and relates to the field of screw fans, the oil-free screw fan comprises a shell, the bottom of the inner wall of the shell is fixedly connected with a support frame, the top of the support frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a screw host, and the outer wall of the screw host is provided with a heat dissipation mechanism. According to the oil-free screw fan, the connecting plate can be arranged on the outer wall of the screw main machine in a surrounding mode, so that the fan can form a surrounding wind power flow direction, compared with single-side wind power blowing, the oil-free screw fan has the effects of being higher in air flowing speed and more excellent in heat dissipation speed, wider heat dissipation coverage is achieved, and the heat dissipation efficiency is improved through wider-angle blowing. And the heat is more effectively taken away from the equipment or the space.

Description

Technical Field

[0001] This application relates to the field of screw blowers, and in particular to an oil-free screw blower. Background Technology

[0002] An oil-free screw blower is a device that compresses air and delivers it to the equipment or air tank. During the air compression process, the screw blower generates a lot of heat, which needs to be dissipated as quickly as possible. If the heat dissipation is not good, it can easily affect the flow rate of the screw blower and the lifespan of the entire device.

[0003] As shown in Chinese Patent Publication No. CN220151553U, a heat dissipation structure for a screw blower includes a blower body. Two fans are fixedly installed on the inner bottom wall of the blower body. The left side and front side of the blower body are provided with heat dissipation holes arranged at equal intervals. However, in actual use, the following shortcomings still exist:

[0004] When the oil-free screw fan of the above-mentioned patent is used in actual use, it dissipates heat from the inside of the equipment by using two fans on one side. Since the air blower on one side can only dissipate heat on one side, it is easy to cause uneven temperature distribution and relatively low heat dissipation efficiency. Heat tends to accumulate in the equipment or space and is difficult to dissipate quickly, which may lead to overheating of the equipment or even cause malfunctions or damage. Utility Model Content

[0005] To address the issue of low heat dissipation efficiency, this application provides an oil-free screw fan.

[0006] The oil-free screw blower provided in this application adopts the following technical solution:

[0007] An oil-free screw fan includes a housing, a support frame fixedly connected to the bottom of the inner wall of the housing, a motor fixedly connected to the top of the support frame, a screw main unit fixedly connected to the output end of the motor, and a heat dissipation mechanism provided on the outer wall of the screw main unit;

[0008] The heat dissipation mechanism includes a sliding rod disposed on the outer wall of the screw main unit, a rotating disk fixedly passing through the side wall of the sliding rod, a connecting block fixedly disposed on the outer wall of the rotating disk, a connecting plate disposed on the outer wall of the screw main unit, and a fan disposed on the side wall of the connecting plate.

[0009] By adopting the above technical solution, multiple fans are symmetrically arranged in the center, which facilitates cooling from multiple angles.

[0010] Preferably, the heat dissipation mechanism further includes an outer support frame fixedly connected to the inner wall of the housing, a locking plate fixedly connected to the outer wall of the outer support frame, and a fixing member fixedly connected to the top of the inner wall of the housing.

[0011] By adopting the above technical solution, the fastener is designed in an L-shape, which facilitates structural connection.

[0012] Preferably, an internal limiting frame is fixedly connected to the end of the fixing member away from the housing, and an inner support ring is fixedly connected to the side wall of the internal limiting frame, with the outer wall of the inner support ring fitting against the sliding rod.

[0013] By adopting the above technical solution, the internal limiting frames are symmetrically arranged, and the other internal limiting frame, which is far away from the fixed component, is fixedly connected to the support frame, thereby making the structural connection more stable.

[0014] Preferably, the side of the sliding rod away from the inner support ring is in contact with the inner wall of the outer support frame, and a connecting block is fixedly connected to the top of the rotating disk.

[0015] By adopting the above technical solution, the sliding rod is limited by the external support frame, thereby making the structural movement more stable.

[0016] Preferably, a handle is fixedly connected to one end of the connecting block away from the rotating disk, and a threaded rod is threaded through one side wall of the connecting block, with the threaded rod threaded through the side wall of the locking plate.

[0017] By adopting the above technical solution, the locking plate has holes at both ends of the side wall, which facilitates fixing.

[0018] Preferably, a knob is fixedly connected to one end of the threaded rod, a limiting member that fits against the outer wall of the rotating disk is fixedly connected to the inner wall of the inner support ring, and a connecting ring is movably passed through the side wall of the sliding rod.

[0019] By adopting the above technical solution, the connecting rings are symmetrically arranged, which makes the structural motion connection more stable.

[0020] Preferably, a second connecting block is fixedly connected to the side wall of the connecting ring, and the end of the second connecting block away from the connecting ring is fixedly connected to the connecting plate. An air intake plate is fixedly connected to the side wall of the connecting plate.

[0021] By adopting the above technical solution, the air intake plate is larger than the connecting frame size, thus making the connection more reasonable.

[0022] Preferably, a connecting frame is fixedly connected to the side of the connecting plate away from the air intake plate, and the side of the air intake plate close to the connecting frame is fixedly connected to the fan.

[0023] By adopting the above technical solution, the fan's rotation range is smaller than the inner wall size of the connecting frame, thereby avoiding interference between the connecting frame and the fan, while the connecting frame can protect the fan.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By using a connecting plate to surround the outer wall of the screw compressor, the fan can form a circular airflow direction. Compared with the airflow from one side, it has a faster airflow and a better heat dissipation effect, achieving a wider heat dissipation coverage. By blowing air at a wider angle, heat is more effectively removed from the equipment or space.

[0026] 2. By using the sliding connecting block one, the rotating disk is driven to rotate, thereby adjusting the multiple air intake plates surrounding the side wall of the screw main unit by 45°, which facilitates timely adjustment according to the different heating parts of the screw main unit with different signals. Attached Figure Description

[0027] Figure 1 This is a schematic diagram showing the overall structure of the oil-free screw blower used in this application;

[0028] Figure 2 This is a diagram illustrating the internal structure of the oil-free screw blower used in this application;

[0029] Figure 3 This is a diagram showing the mounting hardware of the oil-free screw fan in this application;

[0030] Figure 4 This is a partial view of the handle of the oil-free screw blower in this application;

[0031] Figure 5 This is a partial view of the sliding rod of the oil-free screw blower in this application;

[0032] Figure 6 This is a partial view of the fan of the oil-free screw blower in this application;

[0033] Figure 7 This is a partial view of the oil-free screw fan support frame of this application.

[0034] Figure label:

[0035] 1. Housing; 11. Support frame; 12. Motor; 13. Screw compressor; 14. Air tank; 15. Air outlet pipe; 16. Air inlet pipe;

[0036] 2. Heat dissipation mechanism; 21. External support frame; 22. Fixing component; 23. Internal limiting frame; 24. Inner support ring; 25. Sliding rod; 26. Rotating disk; 27. Connecting block one; 28. Handle; 29. ​​Threaded rod; 210. Knob; 211. Limiting component; 212. Connecting ring; 213. Connecting block two; 214. Connecting plate; 215. Air intake plate; 216. Connecting frame; 217. Fan; 218. Locking plate. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-7This application will be described in further detail.

[0038] This application discloses an oil-free screw blower.

[0039] Reference Figure 1 An oil-free screw blower includes a housing 1, a support frame 11 fixedly connected to the bottom of the inner wall of the housing 1, a motor 12 fixedly connected to the top of the support frame 11, a screw motor 13 fixedly connected to the output end of the motor 12, an air tank 14 fixedly connected to the end of the screw motor 13 away from the screw motor 13, and an air outlet pipe 15 fixedly connected to the end of the air tank 14 away from the screw motor 13. A circular hole is opened on the side wall of the housing 1, and the air outlet pipe 15 is fixedly connected through the circular hole, thereby fixing the air outlet pipe 15 to the housing 1. An air inlet pipe 16 is fixedly connected to the top of the screw motor 13. A second circular hole is opened through the top of the housing 1, and the air inlet pipe 16 is fixedly connected through the second circular hole, thereby fixing the air inlet pipe 16 to the housing 1. A heat dissipation mechanism 2 is provided on the outer wall of the screw motor 13.

[0040] The operator starts motor 12, which drives screw compressor 13 to operate. Screw compressor 13 draws air in through air intake pipe 16, processes the air, and then sends it to air storage tank 14 for storage. When needed, the air is discharged through air outlet pipe 15.

[0041] Reference Figures 2-4 The heat dissipation mechanism 2 includes a sliding rod 25 disposed on the outer wall of the screw host 13. A circular hole 3 is opened on the side wall of the rotating disk 26, and the sliding rod 25 is fixedly inserted through the circular hole 3, thereby fixing the sliding rod 25 to the rotating disk 26. A connecting block 27 is fixedly disposed on the outer wall of the rotating disk 26. A connecting plate 214 is disposed on the outer wall of the screw host 13. A fan 217 is disposed on the side wall of the connecting plate 214. The heat dissipation mechanism 2 also includes an outer support frame 21 fixedly connected to the inner wall of the housing 1. A locking plate 218 is fixedly connected to the outer wall of the outer support frame 21. A fixing member 22 is fixedly connected to the top of the inner wall of the housing 1. An internal limiting frame 23 is fixedly connected to the fixed support frame 21. The fixed part 22 is located away from the housing 1. The bottom of the screw host 13 is fixedly connected to the bottom of the inner wall of the inner limit frame 23. The inner support ring 24 is fixedly connected to the side wall of the inner limit frame 23. The sliding rod 25 is attached to the outer wall of the inner support ring 24. The inner wall of the outer support frame 21 is attached to the side of the sliding rod 25 away from the inner support ring 24, so that the outer support frame 21 and the inner support ring 24 form a complete ring track. The connecting block 27 is fixedly connected to the top of the rotating disk 26. The handle 28 is fixedly connected to the end of the connecting block 27 away from the rotating disk 26. The top of the handle 28 is set to be spherical, so as to make it easier for the staff to grip.

[0042] During the use of the screw host 13, the screw host 13 will generate a lot of heat, which needs to be dissipated. At this time, the staff will start the heat dissipation mechanism 2, which will drive multiple fans 217 surrounding the outer wall of the screw host 13 to rotate simultaneously, thereby generating circulating air to cool the outer wall of the screw host 13.

[0043] Reference Figures 5-7 A threaded hole is formed through the side wall of connecting block 27, and threaded rod 29 is threaded through threaded hole 1, thereby connecting threaded rod 29 to connecting block 27. The end of threaded rod 29 near knob 210 is fixedly connected to knob 210. A threaded hole is formed through the side wall of locking plate 218, and threaded rod 29 is threadedly connected to threaded hole 2, thereby connecting threaded rod 29 to locking plate 218. Limiting member 211 is fixedly connected to the inner wall of inner support ring 24. The side of limiting member 211 near rotating disk 26 is in contact with the outer wall of rotating disk 26, thereby limiting rotating disk 26. A circular hole is formed through the side wall of connecting ring 212, and sliding rod 25 is movably connected through circular hole 4. Hole 4 allows the connecting ring 212 to be rotatably connected to the sliding rod 25. The side wall of the connecting ring 212 is fixedly connected to the connecting block 213. The end of the connecting block 213 away from the connecting ring 212 is fixedly connected to the connecting plate 214. The four diagonal positions of the connecting plate 214 are all fixedly connected to the connecting block 213. The air intake plate 215 is fixedly connected to the side wall of the connecting plate 214. Multiple air intake holes are opened through the side wall of the air intake plate 215 to facilitate the airflow guided by the fan 217. The connecting frame 216 is fixedly connected to the side of the connecting plate 214 away from the air intake plate 215 to facilitate the airflow guided by the fan 217. The fan 217 is fixedly connected to the side of the air intake plate 215 near the connecting frame 216.

[0044] When the blowing angle of fan 217 needs to be adjusted, the operator first rotates knob 210 to disengage threaded rod 29 from locking plate 218. Then, the operator grips handle 28, causing rotating disk 26 to rotate, which in turn rotates sliding rod 25. Sliding rod 25 then rotates connecting ring 212, which in turn rotates connecting block 213, which in turn rotates connecting plate 214. This allows multiple fans 217 to be adjusted simultaneously by 45°. After adjustment, the operator rotates knob 210 again to re-engage threaded rod 29 with handle 28, thus locking rotating disk 26.

[0045] Among them, the motor 12, screw main unit 13, air tank 14, and fan 217 are all existing technologies, and their structural principles will not be described in detail. They also include power switches, power connection wires, etc., which are not the main technologies and will not be described in detail.

[0046] The implementation principle of an oil-free screw blower according to an embodiment of this application is as follows:

[0047] The operator activates the cooling mechanism 2, which drives the fan 217 to rotate, thereby cooling the outer wall of the screw host 13. When the fan 217 needs to be adjusted, the operator first rotates the knob 210 to disengage the threaded rod 29 from the locking plate 218. Then, the operator grips the handle 28 to rotate the connecting plate 214, thereby adjusting multiple fans 217 simultaneously by 45°. After that, the operator rotates the knob 210 again to reconnect the threaded rod 29 to the handle 28, thus locking the rotating disk 26.

[0048] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An oil-free screw blower, comprising a housing (1), wherein a support frame (11) is fixedly connected to the bottom of the inner wall of the housing (1), a motor (12) is fixedly connected to the top of the support frame (11), and a screw motor (13) is fixedly connected to the output end of the motor (12), characterized in that: The outer wall of the screw main unit (13) is provided with a heat dissipation mechanism (2); The heat dissipation mechanism (2) includes a sliding rod (25) disposed on the outer wall of the screw host (13), a rotating disk (26) is fixedly passed through the side wall of the sliding rod (25), a connecting block (27) is fixedly disposed on the outer wall of the rotating disk (26), a connecting plate (214) is disposed on the outer wall of the screw host (13), and a fan (217) is disposed on the side wall of the connecting plate (214).

2. The oil-free screw blower according to claim 1, characterized in that: The heat dissipation mechanism (2) further includes an outer support frame (21) fixedly connected to the inner wall of the housing (1), a locking plate (218) fixedly connected to the outer wall of the outer support frame (21), and a fastener (22) fixedly connected to the top of the inner wall of the housing (1).

3. The oil-free screw blower according to claim 2, characterized in that: The end of the fixing member (22) away from the shell (1) is fixedly connected to an internal limiting frame (23), and an inner support ring (24) is fixedly connected to the side wall of the internal limiting frame (23). The outer wall of the inner support ring (24) is in contact with the sliding rod (25).

4. The oil-free screw blower according to claim 3, characterized in that: The side of the sliding rod (25) away from the inner support ring (24) is in contact with the inner wall of the outer support frame (21), and a connecting block (27) is fixedly connected to the top of the rotating disk (26).

5. An oil-free screw blower according to claim 4, characterized in that: A handle (28) is fixedly connected to one end of the connecting block (27) away from the rotating disk (26). A threaded rod (29) is threaded through the side wall of the connecting block (27), and the side wall of the threaded rod (29) is threaded through the locking plate (218).

6. An oil-free screw blower according to claim 5, characterized in that: A knob (210) is fixedly connected to one end of the threaded rod (29), a limiting member (211) that fits against the outer wall of the rotating disk (26) is fixedly connected to the inner wall of the inner support ring (24), and a connecting ring (212) is movably passed through the side wall of the sliding rod (25).

7. An oil-free screw blower according to claim 6, characterized in that: The connecting ring (212) is fixedly connected to the side wall of the connecting block (213), and the end of the connecting block (213) away from the connecting ring (212) is fixedly connected to the connecting plate (214). The connecting plate (214) is fixedly connected to the side wall of the connecting plate (214) with an air intake plate (215).

8. An oil-free screw blower according to claim 7, characterized in that: The connecting plate (214) is fixedly connected to the connecting frame (216) on the side away from the air intake plate (215), and the side of the air intake plate (215) close to the connecting frame (216) is fixedly connected to the fan (217).

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