Energy-saving fan for production equipment

Abstract

The invention relates to the technical field of cooling equipment.The energy-saving draught fan for production equipment comprises a machine shell, fan blades are rotationally arranged in the machine shell, through holes are formed in the two sides of the machine shell in the thickness direction, filter plates are installed at the through holes in the two sides of the machine shell respectively, and filter holes are formed in the filter plates; an adjusting mechanism is mounted in the filtering hole in the filtering plate, the adjusting mechanism comprises an annular rubber sleeve, a plurality of adjusting plates and a plurality of driving parts, the annular rubber sleeve is sleeved in the filtering hole, the plurality of adjusting plates are uniformly hinged to the inner wall of the filtering hole, and the plurality of driving parts are arranged on the inner wall of the filtering hole corresponding to the adjusting plates. The driving piece drives the adjusting plate to rotate, the adjusting plate rotates to drive the annular rubber sleeve to deform, the annular rubber sleeve deforms to adjust the aperture size of the two ends of the filtering holes, and the effects of saving energy and reducing energy consumption are achieved.

Description

Technical Field

[0001] This application relates to the field of cooling equipment, and more particularly to an energy-saving fan for production equipment. Background Technology

[0002] Production equipment generates a lot of heat during the production process, which causes the temperature of the entire production equipment to rise. The rise in temperature of the production equipment can easily lead to a decrease in production efficiency and may even cause damage to the production equipment due to high temperature. Therefore, fans are usually installed in areas of the production equipment where the temperature is prone to rise to cool down.

[0003] However, because the environment in which the production equipment is located is higher than normal, the air temperature generated by the fan during heat dissipation is high, requiring a large amount of power to remove the heat from the production equipment, resulting in a large energy consumption. Summary of the Invention

[0004] In order to save energy and reduce energy consumption, this application provides an energy-saving fan for production equipment.

[0005] The energy-saving fan structure for production equipment provided in this application adopts the following technical solution:

[0006] An energy-saving fan for production equipment includes a housing with fan blades rotatably mounted inside. Through holes are formed on both sides of the housing along its thickness direction. Filter plates are installed at the through holes on both sides of the housing, and filter holes are formed on the filter plates. An adjustment mechanism is installed on the filter plates within the filter holes. The adjustment mechanism includes an annular sleeve, an adjustment plate, and a driving component. The annular sleeve is fitted inside the filter hole. Several adjustment plates are evenly hinged to the inner wall of the filter hole. Several driving components are correspondingly positioned on the inner wall of the filter hole, driving the adjustment plates to rotate. The rotation of the adjustment plates causes the annular sleeve to deform, adjusting the diameter of the filter holes at both ends.

[0007] By adopting the above technical solution, the aperture of the filter hole at the air inlet of the fan is gradually reduced by adjusting the aperture of the filter hole, thereby realizing the Joule-Thomson effect. This causes the air temperature to drop when passing through the filter hole, so that the temperature of the air blown out by the fan is lower than the temperature of the production equipment. This allows the fan to remove more heat from the production equipment more quickly, saving energy and reducing energy consumption.

[0008] Optionally, a rotating platform is fixed inside the housing, and a rotating shaft is slidably and rotatably mounted on the rotating platform. The fan blades are fixed on the rotating shaft. A drive motor is installed inside the housing, and a drive shaft is mounted on the output shaft of the drive motor. A drive bevel gear is mounted on the drive shaft, and a first driven bevel gear and a second driven bevel gear are mounted on the rotating shaft. The first driven bevel gear and the second driven bevel gear are respectively located on both sides of the drive bevel gear, and the first driven bevel gear or the second driven bevel gear is driven to mesh with the drive bevel gear by sliding the rotating shaft.

[0009] Optionally, a lever is slidably mounted on the housing, with one end of the lever extending outside the housing and the other end positioned near the rotating shaft. The rotating shaft has lever rings fixed on both sides of the lever.

[0010] Optionally, a cooling pipe is provided inside the housing, and the cooling pipe is located on the side of the filter plate facing the fan blades.

[0011] Optionally, the cooling pipe is arranged in a serpentine shape inside the casing, and several supports are provided inside the casing, with the cooling pipe installed on the supports.

[0012] Optionally, the filter plate is fitted with a drive gear ring, which is rotatably mounted inside the housing. A power gear is rotatably mounted inside the housing, and the power gear meshes with the drive gear ring. A power mechanism is connected to the power gear, and the power mechanism drives the power gear to rotate.

[0013] Optionally, the power mechanism includes a power turbine and a connecting rod. The power turbine is rotatably disposed inside a cooling pipe, and the connecting rod is fixed to the power turbine, passing through the cooling pipe and connecting to the power gear.

[0014] Optionally, the connecting rod includes a power unit and a drive unit. The power unit is fixed on the power turbine, and the drive unit is fixed on the power gear. A connecting mechanism is provided between the power unit and the drive unit, which connects or disconnects the power unit and the drive unit.

[0015] Optionally, the connecting mechanism includes a ring and a plug sleeve. The ring is slidably disposed on the power unit and has a plug hole. The plug sleeve is installed on the drive unit and has a plug block that matches the plug hole fixed on it. The ring slides toward the plug sleeve to insert the plug block into the plug hole, and the ring slides away from the plug sleeve to disengage the plug block from the plug hole.

[0016] Optionally, the housing is provided with mounting holes.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. By adjusting the aperture of the filter holes, the aperture of the filter holes at the air inlet of the fan is gradually reduced, thereby achieving the Joule-Thomson effect. This causes the air temperature to drop as it passes through the filter holes, resulting in the air temperature blown out by the fan being lower than the temperature of the production equipment. This allows the fan to remove more heat from the production equipment more quickly, saving energy and reducing energy consumption.

[0019] 2. By adjusting the meshing of the first bevel gear or the second bevel gear with the drive bevel gear, the rotation direction of the shaft can be adjusted, thereby adjusting the direction of the fan blade rotation and the air outlet. The fan blade can be adjusted to select the direction of the air outlet, thus achieving the adjustment of the air outlet direction. In special cases, the direction adjustment can be completed without disassembling the casing to change the direction.

[0020] 3. The cooling pipes can exchange heat with the blown air, thereby reducing the temperature of the blown air and improving the cooling effect on the production equipment.

[0021] 4. The power mechanism drives the power gear to rotate the filter plate, thereby adjusting the air outlet position; the flow of cold water in the cooling pipe drives the power turbine to rotate, the power turbine drives the connecting rod, and the connecting rod drives the power gear to rotate the drive gear ring. The power of the flow of cold water in the cooling pipe drives the filter plate to make reasonable use of energy.

[0022] 5. The power unit and drive unit are connected by a connecting mechanism to realize the power turbine driving the filter plate. When the filter plate does not need to rotate, the power unit and drive unit are disconnected by the connecting mechanism. When the cooling pipeline is in use, the power mechanism does not drive the filter plate to rotate, which makes it convenient to adjust whether the filter plate rotates according to the needs.

[0023] 6. The reinforcing block engages with the reinforcing slot to prevent the insert block from disengaging from the insertion hole, thus providing reinforcement. Since the reinforcing mechanism is located inside the housing, an electric push cylinder is installed on the driving power unit to facilitate the release ring. The cylinder body of the electric push cylinder is fixed on the power unit, and the piston rod of the electric push cylinder is fixedly connected to the release ring. The release ring is driven to slide by the electric push cylinder. The limiting ring restricts the sliding position of the release ring. When the release ring abuts against the limiting ring, the release ring will no longer slide relative to the ring sleeve, thereby reducing the probability of the release ring disengaging. When the release ring abuts against the limiting ring, the electric push cylinder can drive the ring sleeve to slide, thereby realizing the electric drive of the ring sleeve.

[0024] 7. By adjusting the position of the mounting holes through sliding, the housing can be easily installed on different production equipment, thus improving the adaptability of the housing between different production equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0026] Figure 2 This is a cross-sectional view of the overall structure of an embodiment of this application.

[0027] Figure 3 yes Figure 2 A magnified view of section A in the middle.

[0028] Figure 4 yes Figure 2 A magnified view of section B in the middle.

[0029] Figure 5 This is a partial cross-sectional view of the overall structure of an embodiment of this application.

[0030] Figure 6 This is a schematic diagram of the power mechanism in an embodiment of this application.

[0031] Figure 7 yes Figure 6 A magnified view of section C.

[0032] In the diagram, 1. Housing; 2. Fan blade; 3. Through hole; 4. Filter plate; 5. Filter hole; 6. Adjustment mechanism; 61. Annular rubber sleeve; 62. Adjustment plate; 63. Drive component; 7. Rotary table; 8. Rotating shaft; 9. Drive motor; 10. Drive shaft; 11. Drive bevel gear; 12. First driven bevel gear; 13. Second driven bevel gear; 14. Actuating lever; 15. Actuating ring; 16. Cooling pipe; 17. Support; 18. Drive gear ring; 9. Power gear; 20. Power mechanism; 201. Power turbine; 202. Connecting rod; 2021. Power unit; 2022. Drive unit; 21. Connecting mechanism; 211. Ring sleeve; 212. Insert sleeve; 22. Insertion hole; 23. Insert block; 24. Reinforcing mechanism; 241. Reinforcing block; 242. Reinforcing groove; 25. Elastic component; 26. Release ring; 27. Electric push cylinder; 28. Limiting ring; 29. ​​Mounting plate; 30. Mounting hole. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-7 The present application will be further described with reference to specific embodiments:

[0034] First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] This application discloses an energy-saving fan for production equipment, referring to... Figure 1 , Figure 2 and Figure 3The device includes a housing 1, within which a fan blade 2 is rotatably mounted. In this embodiment, the fan blade 2 includes a mounting block and several blades fixed circumferentially to the mounting block. Through holes 3 are formed on both sides of the housing 1 along its thickness direction. Filter plates 4 are respectively installed at the through holes 3 on both sides of the housing 1. Filter holes 5 are formed on the filter plates 4 and are evenly distributed on them. The filter plates 4 are used to block large debris, reducing the probability of damage to the fan blade 2 caused by debris impacting it. An adjustment mechanism 6 is installed inside, comprising an annular sleeve 61, an adjusting plate 62, and a driving component 63. The annular sleeve 61 is fitted inside the filter hole 5. There are several adjusting plates 62; in this embodiment, six adjusting plates 62 are provided. The six adjusting plates 62 are evenly hinged to the inner wall of the filter hole 5, with the middle of each adjusting plate hinged to the inner diameter of the filter hole 5. The adjusting plates 62 abut against the annular sleeve 61. When the adjusting plates 62 are horizontally positioned, the annular sleeve 61 ensures that the diameter of the entire filter hole 5 is uniform. When the adjusting plate 62 is horizontally positioned... When the adjustment plate 62 tilts, the adjustment plate 62 abuts against one end of the annular rubber sleeve 61, causing the annular rubber sleeve 61 to deform and thus reduce the aperture of the filter hole 5. There are several driving components 63, which are set on the inner wall of the filter hole 5 corresponding to the adjustment plate 62. The number of driving components 63 is twice that of the adjustment plate 62. Each adjustment plate 62 has a driving component 63 at both ends along its length. In this embodiment, the driving component 63 is a small electric cylinder. The piston rod of the small electric cylinder is hinged to the adjustment plate 62. The driving component 63 drives the adjustment plate 62 to rotate. The rotation of the adjustment plate 62 drives the annular rubber sleeve 61 to deform. The deformation of the annular rubber sleeve 61 adjusts the aperture size at both ends of the filter hole 5. By adjusting the aperture of the filter hole 5, the aperture of the filter hole 5 at the air inlet of the fan is gradually reduced, thereby realizing the Joule-Thomson effect. This causes the air temperature to drop when passing through the filter hole 5, so that the temperature of the air blown out by the fan is lower than the temperature of the production equipment. This allows the fan to remove more and faster heat from the production equipment, saving energy and reducing energy consumption.

[0036] Reference Figure 2 , Figure 3 and Figure 4A rotating platform 7 is fixed inside the housing 1. A rotating shaft 8 is slidably mounted on the rotating platform 7. The fan blade 2 is fixed on the rotating shaft 8. A drive motor 9 is installed inside the housing 1. A drive shaft 10 is mounted on the output shaft of the drive motor 9. A drive bevel gear 11 is mounted on the drive shaft 10. A first driven bevel gear 12 and a second driven bevel gear 13 are mounted on the rotating shaft 8. The first driven bevel gear 12 and the second driven bevel gear 13 are respectively located on both sides of the drive bevel gear 11. The rotating shaft 8 slides and drives the first driven bevel gear 12 or the second driven bevel gear 13 to mesh with the drive bevel gear 11. Since the first driven bevel gear 12 and the second driven bevel gear 13 are located on both sides of the drive bevel gear 11, the rotation direction of the first driven bevel gear 12 and the second driven bevel gear 13 when they mesh with the drive bevel gear 11 is... Conversely, by adjusting the engagement of the first driven bevel gear 12 or the second driven bevel gear 13 with the driving bevel gear 11, the rotation direction of the rotating shaft 8 can be adjusted, thereby adjusting the airflow direction of the fan blade 2. This allows the fan blade 2 to select the airflow direction by adjustment, achieving airflow direction adjustment. In special cases, the direction adjustment can be completed without disassembling the housing 1 to change the direction. A toggle lever 14 is slidably mounted on the housing 1. One end of the toggle lever 14 extends out of the housing 1, and the other end is set close to the rotating shaft 8. Toggle rings 15 are fixed on both sides of the rotating shaft 8. The rotating shaft 8 is driven to slide by the toggle lever 14 abutting against the toggle rings 15, thereby facilitating the adjustment of the rotation direction of the rotating shaft 8. Compared with the traditional direct adjustment of the direction of the motor, the load on the motor is smaller, and the motor can also be installed in a position that does not obstruct the airflow.

[0037] Reference Figure 2 The casing 1 is equipped with a cooling pipe 16, which is connected to a water-cooling device for circulating cold water. The cooling pipe 16 is located on the side of the filter plate 4 facing the fan blade 2, and both filter plates 4 are equipped with cooling pipes 16 on the side facing the fan blade 2. The cooling pipe 16 can exchange heat with the blown air, thereby reducing the temperature of the blown air and improving the cooling effect on the production equipment. The cooling pipe 16 is arranged in a serpentine shape inside the casing 1. Several supports 17 are provided inside the casing 1, and the cooling pipe 16 is installed on the supports 17. The supports 17 are used to support the cooling pipe 16. The serpentine cooling pipe 16 can increase the contact area with the gas, thereby increasing the amount of heat exchange and improving the cooling effect.

[0038] Reference Figure 5 and Figure 6The filter plate 4 is fitted with a drive gear ring 18, which is rotatably mounted inside the housing 1. A power gear 19 is rotatably mounted inside the housing 1, meshing with the drive gear ring 18. A power mechanism 20 is connected to the power gear 19, which drives the power gear 19 to rotate, thereby rotating the filter plate 4 and adjusting the air outlet position. The power mechanism 20 includes a power turbine 201 and a connecting rod 202. The power turbine 201 is rotatably mounted inside the cooling pipe, and the connecting rod 202 is fixed to the power turbine 201. The connecting rod 202 passes through the cooling pipe and connects to the power gear 19. The flow of cold water in the cooling pipe 16 drives the power turbine 201 to rotate, which in turn drives the connecting rod 202, which in turn drives the power gear 19, thus rotating the drive gear ring 18. The power of the flow of cold water in the cooling pipe 16 drives the filter plate 4, making efficient use of energy.

[0039] Reference Figure 6 and Figure 7The connecting rod 202 includes a power unit 2021 and a drive unit 2022. The power unit 2021 is fixed to the power turbine 201, and the drive unit 2022 is fixed to the power gear 19. A connecting mechanism 21 is provided between the power unit 2021 and the drive unit 2022. The connecting mechanism 21 connects or disconnects the power unit 2021 and the drive unit 2022. The power turbine 201 drives the filter plate 4 by connecting the power unit 2021 and the drive unit 2022 through the connecting mechanism 21. When the filter plate 4 does not need to rotate, the power unit 2021 and the drive unit 2022 are disconnected through the connecting mechanism 21. When the cooling pipe 16 is in use, the power mechanism 20 does not drive the filter plate 4 to rotate, which makes it convenient to adjust whether the filter plate 4 rotates as needed. The connecting mechanism 21 includes a ring 211 and a insert 212. The ring 211 is slidably disposed on the power unit 2021, and an opening is provided on the ring 211. A socket 22 is provided, and a sleeve 212 is fixedly installed on the drive unit 2022. A plug block 23 adapted to the socket 22 is fixed on the sleeve 212. The plug block 23 and the socket 22 have uniform polygonal cross sections. In this embodiment, the cross sections of the plug block 23 and the socket 22 are both rectangular. The power unit 2021 is slidably configured with a ring 211 as a column with a polygonal cross section, so that the ring 211 can rotate synchronously when the connecting rod 202 rotates. The ring 211 faces the sleeve 212. The insertion block 23 is inserted into the socket 22 by sliding in direction 12, and the ring sleeve 211 slides away from the insertion sleeve 212 to disengage the insertion block 23 from the socket 22. The connection between the power unit 2021 and the drive unit 2022 is realized through the cooperation of the insertion sleeve 212 and the ring sleeve 211. When the insertion sleeve 212 and the ring sleeve 211 are disengaged, the power unit 2021 and the drive unit 2022 are disengaged, thereby facilitating the switching between connection and disconnection of the power unit 2021 and the drive unit 2022.A reinforcing mechanism 24 is provided between the ring sleeve 211 and the insert sleeve 212. The reinforcing mechanism 24 includes a reinforcing block 241 and a reinforcing groove 242. The reinforcing block 241 is hinged to the ring sleeve 211. The reinforcing block 241 can be inserted into the insertion hole 22 by rotation or stored in the inner wall of the insertion hole 22. The reinforcing groove 242 is opened on the insert block 23 of the insert sleeve 212 corresponding to the reinforcing block 241. When the insert block 23 is inserted into the insertion hole 22, the reinforcing block 241 is engaged in the reinforcing groove 242 to prevent the insert block 23 from disengaging from the insertion hole 22. The reinforcing element 25, which serves a reinforcing function, is located between the reinforcing block 241 and the ring sleeve 211. The elastic element 25 drives one end of the reinforcing block 241 to rotate and extend into the insertion hole 22, while the other end of the reinforcing block 241 extends out of the ring sleeve 211 through rotation. A release ring 26 is slidably positioned outside the ring sleeve 211. The release ring 26 is a ring with a wedge-shaped cross-section. The wedge-shaped surface of the release ring 26 abuts against the side of the reinforcing block 241 extending out of the ring sleeve 211. The sliding of the release ring 26 drives the reinforcing block 241 to rotate, thereby driving... The reinforcing block 241 extends into the insertion hole 22 and is housed in the side wall of the insertion hole 22, facilitating the disengagement of the insertion block 23 from the insertion hole 22. In this embodiment, to improve the reinforcement effect, multiple sets of reinforcement mechanisms 24 are evenly arranged between the ring sleeve 211 and the insertion sleeve 212. The disengagement ring 26 can simultaneously drive the multiple sets of reinforcing blocks 241 of the reinforcement mechanism 24. Since the reinforcement mechanism 24 is located inside the housing 1, an electric push cylinder 27 is installed on the driving power unit 2021 to facilitate the driving of the disengagement ring 26. The cylinder body of the electric push cylinder 27 is fixed on the power unit 2021. On ring 21, the piston rod of the electric cylinder 27 is fixedly connected to the release ring 26. The electric cylinder 27 drives the release ring 26 to slide. A limiting ring 28 is fixed on the ring sleeve 211, restricting the sliding position of the release ring 26. When the release ring 26 abuts against the limiting ring 28, the release ring 26 stops sliding relative to the ring sleeve 211, thus reducing the probability of the release ring 26 disengaging. When the release ring 26 abuts against the limiting ring 28, the electric cylinder 27 can drive the ring sleeve 211 to slide, thereby achieving electric drive of the ring sleeve 211.

[0040] A plurality of mounting plates 29 are installed on the housing 1. Each mounting plate 29 has mounting holes 30. The mounting holes 30 are used to pass bolts through to install the housing 1 on the production equipment. In this embodiment, two mounting plates 29 are provided on each side wall of the housing 1. The mounting plates 29 are slidably disposed on the housing 1 along the length and width directions of the housing 1. The position of the mounting holes 30 is adjusted by sliding, so as to facilitate the installation of the housing 1 on different production equipment and improve the adaptability of the housing 1 between different production equipment. A fixing platform is fixed on the housing 1. The fixing platform is threaded with fixing bolts. Tightening the fixing bolts fixes the mounting plates 29 against the fixing bolts. Loosening the fixing bolts allows the mounting plates 29 to slide on the housing 1.

[0041] The implementation principle of this application embodiment is as follows: The position of the mounting plate 29 is adjusted according to the production equipment to be installed on the housing 1. Then, the housing 1 is installed on the production equipment using bolts. The drive lever 14 is slid according to the location of the production equipment requiring cooling, thereby adjusting the airflow direction of the fan blade 2. The adjustment mechanism 6 on the inlet airflow filter plate 4 and the outlet airflow filter plate 4 is adjusted according to the airflow direction, so that the diameter of the inlet airflow filter hole 5 away from the fan blade 2 is larger than the diameter facing the fan blade 2, and the diameter of the outlet airflow filter hole 5 away from the fan blade 2 is smaller than the diameter facing the fan blade 2. This cools the air entering and leaving the housing 1. When further temperature reduction is needed, cold water is circulated through the cooling pipe 16 to exchange heat and cool the gas. When the outlet airflow position needs adjustment, the power unit 2021 and the drive unit 2022 are connected through the connecting mechanism 21, causing the power turbine 201 to drive the power gear 19. The filter plate 4 rotates; when it is necessary to connect the power unit 2021 and the drive unit 2022 via the connecting mechanism 21, the electric push cylinder 27 drives the release ring 26 to slide towards the insert sleeve 212 until it abuts against the limiting ring 28. Then, the electric push cylinder 27 continues to drive the release ring 26 so that the release ring 26 slides on the power unit 2021 with the ring sleeve 211 through the abutment against the limiting ring 28, so that the ring sleeve 211 slides towards the insert sleeve 212, and the insert block 23 of the insert sleeve 212 inserts into the ring sleeve 212. When it is necessary to disengage the power unit 2021 and the drive unit 2022 from the socket 22 of 11, the disengagement ring 26 is driven by the electric push cylinder 27 to slide away from the socket 212. The disengagement ring 26 drives the reinforced socket 22 to rotate and disengage from the reinforced slot. Then the disengagement ring 26 abuts against the limiting ring 28. The electric push cylinder 27 continues to apply power. The disengagement ring 26 abuts against the limiting ring 28 and drives the ring sleeve 211 to disengage from the socket 212, so that the power unit 2021 and the drive unit 2022 are disengaged.

[0042] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. An energy-saving fan for production equipment, characterized in that: Includes a housing (1), in which a fan blade (2) is rotatably mounted. Through holes (3) are provided on both sides of the housing (1) along its thickness direction. Filter plates (4) are respectively installed at the through holes (3) on both sides of the housing (1). Filter holes (5) are provided on the filter plates (4). An adjustment mechanism (6) is installed on the filter plates (4) within the filter holes (5). The adjustment mechanism (6) includes an annular rubber sleeve (61), an adjustment plate (62), and a driving component (63). The sleeve (61) is fitted inside the filter hole (5). There are several adjusting plates (62), which are evenly hinged to the inner wall of the filter hole (5). There are several driving components (63), which are set on the inner wall of the filter hole (5) corresponding to the adjusting plates (62). The driving components (63) drive the adjusting plates (62) to rotate. The rotation of the adjusting plates (62) drives the annular rubber sleeve (61) to deform. The deformation of the annular rubber sleeve (61) adjusts the hole diameter at both ends of the filter hole (5).

2. The energy-saving fan for production equipment according to claim 1, characterized in that: A rotating platform (7) is fixed inside the housing (1). A rotating shaft (8) is slidably rotatably mounted on the rotating platform (7). The fan blade (2) is fixed on the rotating shaft (8). A drive motor (9) is installed inside the housing (1). A drive shaft (10) is mounted on the output shaft of the drive motor (9). A drive bevel gear (11) is mounted on the drive shaft (10). A first driven bevel gear (12) and a second driven bevel gear (13) are mounted on the rotating shaft (8). The first driven bevel gear (12) and the second driven bevel gear (13) are respectively located on both sides of the drive bevel gear (11). The first driven bevel gear (12) or the second driven bevel gear (13) is driven to mesh with the drive bevel gear (11) by sliding the rotating shaft (8).

3. The energy-saving fan for production equipment according to claim 2, characterized in that: A lever (14) is slidably mounted on the housing (1). One end of the lever (14) extends out of the housing (1), and the other end is located near the rotating shaft (8). A lever ring (15) is fixed on both sides of the lever (14) on the rotating shaft (8).

4. The energy-saving fan for production equipment according to claim 1, characterized in that: A cooling pipe (16) is provided inside the housing (1), and the cooling pipe (16) is located on the side of the filter plate (4) facing the fan blade (2).

5. An energy-saving fan for production equipment according to claim 4, characterized in that: The cooling pipe (16) is arranged in a serpentine shape inside the casing (1), and several supports (17) are provided inside the casing (1). The cooling pipe (16) is installed on the supports (17).

6. The energy-saving fan for production equipment according to claim 5, characterized in that: The filter plate (4) is fitted with a drive gear ring (18), which is rotatably disposed inside the housing (1). A power gear (19) is rotatably disposed inside the housing (1). The power gear (19) meshes with the drive gear ring (18). A power mechanism (20) is connected to the power gear (19), which drives the power gear (19) to rotate.

7. An energy-saving fan for production equipment according to claim 6, characterized in that: The power mechanism (20) includes a power turbine (201) and a connecting rod (202). The power turbine (201) is rotatably disposed in a cooling pipe, and the connecting rod (202) is fixed to the power turbine (201). The connecting rod (202) passes through the cooling pipe and is connected to the power gear (19).

8. An energy-saving fan for production equipment according to claim 7, characterized in that: The connecting rod (202) includes a power unit (2021) and a drive unit (2022). The power unit (2021) is fixed on the power turbine (201), and the drive unit (2022) is fixed on the power gear (19). A connecting mechanism (21) is provided between the power unit (2021) and the drive unit (2022). The connecting mechanism (21) connects the power unit (2021) and the drive unit (2022) or disconnects the power unit (2021) and the drive unit (2022).

9. An energy-saving fan for production equipment according to claim 8, characterized in that: The connecting mechanism (21) includes a ring (211) and a plug (212). The ring (211) is slidably disposed on the power unit (2021). A plug hole (22) is provided on the ring (211). The plug (212) is installed on the drive unit (2022). A plug block (23) adapted to the plug hole (22) is fixed on the plug block (212). The ring (211) slides toward the plug hole (212) to insert the plug block (23) into the plug hole (22). The ring (211) slides away from the plug hole (212) to disengage the plug block (23) from the plug hole (22).

10. An energy-saving fan for production equipment according to claim 1, characterized in that: The housing (1) has mounting holes (30).

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