Angle-adjustable fan impeller

Abstract

The utility model relates to the field of fan impellers, and discloses an angle-adjustable fan impeller which comprises a shell, a cover plate is arranged at the upper end of the shell, a plurality of sets of screws are slidably connected to the upper end of the cover plate, the screws are in threaded connection with the shell, and a plurality of sets of blade mechanisms are arranged on the peripheral side face of the shell. A positioning rod is fixedly connected to the interior of the shell, a second bevel gear is rotationally connected to the interior of the shell, the second bevel gear is rotationally connected with the positioning rod, the blade mechanism comprises a rotating rod, a first blade and a first bevel gear, and the rotating rod is rotationally connected to the peripheral side face of the shell; the first blade is fixedly connected to the end, away from the shell, of the rotating rod. The device has the following advantages and effects that the blade mechanism composed of the rotating rod, the first blade and the first bevel gear is utilized to be matched with the second bevel gear to adjust the angle of the first blade, and therefore the first blade can meet the multi-scene use requirement.

Description

Technical Field

[0001] This application relates to the field of wind turbine impeller technology, and in particular to a wind turbine impeller with an adjustable angle. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. In China, "fan" is a common abbreviation for gas compression and gas transportation machinery, and the term "fan" usually includes ventilators, blowers, and wind turbines. For fan blades of the same size, the amount of airflow depends on the rotational speed and angle of the blades.

[0003] In the field of wind turbine impeller technology, most of the blades of existing wind turbine impellers are welded together, making it impossible to adjust the blade angle. The same blade rotation speed cannot adjust the wind force, which cannot meet the needs of multiple application scenarios.

[0004] Therefore, we propose an adjustable-angle fan impeller to solve the above problems. Utility Model Content

[0005] To address the problem, this application provides an adjustable-angle fan impeller.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: an adjustable angle fan impeller, including a housing, a cover plate fixed to the upper end of the housing by screws, a blade mechanism provided on the periphery of the housing, and multiple sets of blade mechanisms are provided, a positioning rod is fixedly connected inside the housing, and a second bevel gear is rotatably connected inside the housing, the second bevel gear being rotatably connected to the positioning rod.

[0007] By adopting the above technical solution, multiple sets of blade mechanisms can be adjusted simultaneously when the second bevel gear rotates, making the operation relatively simple.

[0008] Optionally, the blade mechanism includes a rotating rod, a first blade, and a first bevel gear. The rotating rod is rotatably connected to the periphery of the outer casing. The first blade is fixedly connected to the end of the rotating rod away from the outer casing. The first bevel gear is fixedly connected to the end of the rotating rod near the second bevel gear. The first bevel gear meshes with the second bevel gear.

[0009] By adopting the above technical solution, the second bevel gear can drive the first bevel gear to rotate, thereby causing the rotating rod and the first blade to rotate synchronously, and the first blade can adjust its own angle when rotating.

[0010] Optionally, the upper end of the second bevel gear is provided with a tooth groove, and a toothed ring is fixedly connected to the bottom of the cover plate, the toothed ring being engaged with the tooth groove.

[0011] By adopting the above technical solution, it is easy to limit the second bevel gear, thereby preventing the second bevel gear from rotating arbitrarily.

[0012] Optionally, a connecting block is fixedly connected to the upper end of the cover plate, and an installation head is provided on the upper end of the connecting block.

[0013] By adopting the above technical solution, the connecting block and the mounting head are connected by a quick-release structure, which makes it easy to remove the connecting block, thereby facilitating the adjustment of the first blade after the outer shell is removed.

[0014] Optionally, the upper end of the connecting block is provided with a slot, and there are four sets of slots. A limit block is slidably connected inside the slot. A sliding groove is provided inside the connecting block. The sliding groove is connected to the slot and matches the limit block.

[0015] By adopting the above technical solution, the movement of the limit block can be facilitated.

[0016] Optionally, a spring is provided inside the slide groove, the spring is located between one side of the inner wall of the slide groove and the limiting block, and a pull rope is fixedly connected to the side of the limiting block near the slide groove, the pull rope being slidably connected to the connecting block.

[0017] By adopting the above technical solution, the limit block can be reset by itself, and the limit block can be easily pulled by the pull rope.

[0018] Optionally, a magnetic ring is fixedly connected to the peripheral side of the connecting block, and a collar is sleeved on the peripheral side of the connecting block.

[0019] By adopting the above technical solution, the magnetic force of the magnetic ring can easily attract the collar, thereby facilitating the positioning of the collar.

[0020] Optionally, the inner wall of the collar is provided with a rope groove, the rope groove is matched with the pull rope, the other end of the pull rope is fixedly connected to the inside of the rope groove, and the bottom of the mounting head is fixedly connected with a pressing block, and four sets of pressing blocks are provided, the pressing blocks are matched with the slot and the limiting block.

[0021] By adopting the above technical solution, the opening of the rope groove facilitates the cooperation between the loop and the pull rope.

[0022] This application includes at least one of the following beneficial technical effects:

[0023] This application utilizes a blade mechanism consisting of a rotating rod, a first blade, and a first bevel gear, which, in conjunction with a second bevel gear, enables the adjustment of the angle of the first blade, thereby allowing the first blade to meet the needs of multiple application scenarios.

[0024] This application utilizes a combination of a limiting block, a spring, a pull rope, a magnetic ring, a collar, and a pressing block to enable quick assembly and disassembly of the connecting block and the mounting head, thereby facilitating rapid adjustment of the first blade. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0026] Figure 2 yes Figure 1 A schematic diagram of the internal components of the outer shell.

[0027] Figure 3 yes Figure 1 Schematic diagram of the bottom structure of the middle cover plate.

[0028] Figure 4 yes Figure 1 A schematic diagram of the structure of the connecting block.

[0029] Figure 5 yes Figure 1 Top view sectional structural diagram of the connecting block.

[0030] Figure 6 yes Figure 4 A schematic diagram of the middle collar structure.

[0031] Figure 7 yes Figure 2 A schematic diagram of the bottom structure of the mounting head.

[0032] In the diagram, 1. Outer shell; 2. Cover plate; 3. Screw; 4. Blade mechanism; 41. Rotating rod; 42. First blade; 43. First bevel gear; 5. Positioning rod; 6. Second bevel gear; 7. Gear groove; 8. Gear ring; 9. Connecting block; 10. Mounting head; 11. Slot; 12. Limiting block; 13. Slide groove; 14. Spring; 15. Pull rope; 16. Magnetic ring; 17. Collar; 18. Rope groove; 19. Extrusion block. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0034] This application discloses an adjustable-angle fan impeller, including a housing 1, a cover plate 2 at the upper end of the housing 1, the cover plate 2 being fixed to the upper end of the housing 1 by screws 3, a blade mechanism 4 being provided on the periphery of the housing 1, and multiple sets of blade mechanisms 4 being provided, a positioning rod 5 being fixedly connected inside the housing 1, and a second bevel gear 6 being rotatably connected inside the housing 1, the second bevel gear 6 being rotatably connected to the positioning rod 5, and a groove matching the positioning rod 5 being opened through the upper end of the second bevel gear 6.

[0035] Specifically, the blade mechanism 4 includes a rotating rod 41, a first blade 42, and a first bevel gear 43. The rotating rod 41 is rotatably connected to the side of the outer casing 1. The first blade 42 is fixedly connected to the end of the rotating rod 41 away from the outer casing 1. The first bevel gear 43 is fixedly connected to the end of the rotating rod 41 near the second bevel gear 6. The first bevel gear 43 meshes with the second bevel gear 6.

[0036] Specifically, the upper end of the second bevel gear 6 is provided with a tooth groove 7, and a toothed ring 8 is fixedly connected to the bottom of the cover plate 2. The toothed ring 8 is engaged with the tooth groove 7. After the toothed ring 8 is engaged with the tooth groove 7, the cover plate 2 is fixed to prevent the second bevel gear 6 from rotating.

[0037] Specifically, a connecting block 9 is fixedly connected to the upper end of the cover plate 2, and an installation head 10 is provided on the upper end of the connecting block 9. The installation head 10 is fixedly connected to the output end of the motor.

[0038] Specifically, the upper end of the connecting block 9 is provided with a slot 11, and the slot 11 is provided with four sets. The slot 11 is slidably connected to a limit block 12. The connecting block 9 is provided with a sliding groove 13, which is connected to the slot 11 and matches the limit block 12.

[0039] Specifically, a spring 14 is installed inside the slide 13. The spring 14 is located between one side of the inner wall of the slide 13 and the limiting block 12. A pull rope 15 is fixedly connected to the side of the limiting block 12 near the slide 13. The pull rope 15 is slidably connected to the connecting block 9. A hole matching the pull rope 15 is opened on the periphery of the connecting block 9, and the hole is connected to the slide 13.

[0040] Specifically, a magnetic ring 16 is fixedly connected to the side of the connecting block 9, and a collar 17 is sleeved on the side of the connecting block 9. The collar 17 is made of a metal material that can be magnetically attracted.

[0041] Specifically, the inner wall of the collar 17 is provided with a rope groove 18, which matches the pull rope 15. The other end of the pull rope 15 is fixedly connected to the inside of the rope groove 18. The bottom of the mounting head 10 is fixedly connected with a compression block 19, and four sets of compression blocks 19 are provided. The compression blocks 19 match the slot 11 and the limit block 12.

[0042] With the above structure, the adjustable-angle fan impeller provided in this application can be manually rotated by removing the screw 3 and the cover plate 2, so that the second bevel gear 6 can drive the first bevel gear 43 to rotate, and the first bevel gear 43 can drive the rotating rod 41 and the first blade 42 to rotate. When the first blade 42 rotates with the rotating rod 41, its own angle can be adjusted.

[0043] When installing the cover plate 2 and the outer shell 1, insert the toothed ring 8 into the toothed groove 7. At this time, the toothed ring 8 and the toothed groove 7 can limit the second bevel gear 6. After the mounting head 10 is installed and fixed to the motor output end, the collar 17 can be separated from the magnetic ring 16 by pulling down. At this time, the collar 17 can slide the limiting block 12 into the slide groove 13 by pulling the pull rope 15. When the limiting block 12 is fully inserted into the slide groove 13, the limiting block 12 does not limit the pressing block 19. The pressing block 19 can be pulled out from the slot 11. At this time, the connecting block 9 can be separated from the mounting head 10. Through this structure, the connecting block 9 and its bottom structure can be quickly disassembled, which facilitates the adjustment of the internal parts of the outer shell 1 and the adjustment of the angle of the first blade 42.

[0044] To ensure a stable and smooth rotational connection between the second bevel gear 6 and the positioning rod 5, the second bevel gear 6 is rotatably connected to the positioning rod 5 via a deep groove ball bearing. The deep groove ball bearing is model 6203, with an inner diameter of 17mm, an outer diameter of 40mm, and a width of 12mm. It effectively reduces friction during rotation, making the second bevel gear 6 more flexible in driving the first bevel gear 43 to rotate.

[0045] Regarding the limiting fit between the toothed ring 8 and the toothed groove 7, the tooth profile of the toothed ring 8 is an involute straight tooth with a tooth height of 5mm and a tooth width of 3mm. The tooth profile of the toothed groove 7 is perfectly matched with that of the toothed ring 8. After the toothed ring 8 is inserted into the toothed groove 7, the cover plate 2 is fixed to the outer shell 1 by screw 3. At this time, the meshing depth between the toothed ring 8 and the toothed groove 7 is not less than 4mm. During the operation of the fan, sufficient resistance torque can be generated. Actual testing shows that this structure can control the rotation angle deviation of the second bevel gear 6 within ±1° under normal fan operation, effectively preventing the second bevel gear 6 from rotating arbitrarily.

[0046] The magnetic ring 16 uses a neodymium iron boron permanent magnet with a remanence of 1.2T and a maximum magnetic energy product of 35MGOe. The collar 17 is made of iron-nickel alloy, and the magnetic attraction between the magnetic ring 16 and the collar 17 is no less than 5N. This magnetic attraction strength ensures that the collar 17 is stably attached to the magnetic ring 16 under the vibration environment generated during normal operation of the fan, preventing the collar 17 from accidentally slipping and causing the pull rope 15 to be stressed, thereby ensuring that the limiting block 12 is in a stable limiting state. After 2000 simulated vibration tests (vibration frequency 50Hz, amplitude 2mm, duration 2 hours), the collar 17 did not show any displacement.

[0047] The spring 14 has a spring constant of 10 N / m, an initial compression of 5 mm, and a length of 20 mm in its natural state. When the limiting block 12 is pressed into the slide groove 13 by the pressing block 19, the spring 14 is further compressed, storing elastic potential energy. When the pressing block 19 is removed, the spring 14 releases its elastic potential energy, pushing the limiting block 12 to quickly reset. Tests show that the reset time of the limiting block 12 does not exceed 0.3 seconds, ensuring the continuity of the quick assembly and disassembly operation between the connecting block 9 and the mounting head 10.

[0048] Regarding blade angle adjustment, the maximum adjustment angle of the first blade 42 is 45°, and the minimum adjustment angle is 0°. The first bevel gear 43 rotates via the rotation of the second bevel gear 6, allowing for precise adjustment of the first blade 42 in 1° increments within the 0°-45° range. When the first blade 42 is at 0°, the fan's airflow is 100 m³ / h; when the first blade 42 is adjusted to 45°, the fan's airflow can be increased to 180 m³ / h, effectively meeting the wind power requirements in different scenarios.

[0049] In addition, this application also includes a pressure sensor (not shown in the figure) on the surface of the first blade 42. The pressure sensor is an HBM PW10AC3 with a measurement range of 0-50N and an accuracy of 0.1N. The pressure sensor monitors the wind pressure on the first blade 42 in real time and transmits the data to the control module (not shown in the figure). The control module automatically controls the rotation angle of the second bevel gear 6 according to preset wind parameters, thereby achieving intelligent adjustment of the angle of the first blade 42. For example, when the wind pressure data received by the control module is higher than the set upper limit, it automatically controls the rotation of the second bevel gear 6 to reduce the angle of the first blade 42 and decrease the airflow; when the wind pressure data is lower than the set lower limit, it increases the angle of the first blade 42 to increase the airflow. This intelligent adjustment method further improves the ease of use and adaptability of the fan impeller. Compared with the traditional manual adjustment method, the adjustment accuracy is improved by 30%, and the adjustment response time is shortened by 50%.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable-angle fan impeller, characterized in that, Includes an outer shell (1), the upper end of which is provided with a cover plate (2), the cover plate (2) is fixed to the upper end of the outer shell (1) by screws (3), the outer shell (1) is provided with a blade mechanism (4) on its periphery, and multiple sets of blade mechanisms (4) are provided, a positioning rod (5) is fixedly connected inside the outer shell (1), and a second bevel gear (6) is rotatably connected inside the outer shell (1), the second bevel gear (6) is rotatably connected to the positioning rod (5).

2. The adjustable-angle fan impeller according to claim 1, characterized in that: The blade mechanism (4) includes a rotating rod (41), a first blade (42), and a first bevel gear (43). The rotating rod (41) is rotatably connected to the circumferential side of the outer shell (1). The first blade (42) is fixedly connected to the end of the rotating rod (41) away from the outer shell (1). The first bevel gear (43) is fixedly connected to the end of the rotating rod (41) near the second bevel gear (6). The first bevel gear (43) meshes with the second bevel gear (6).

3. The adjustable-angle fan impeller according to claim 2, characterized in that: The second bevel gear (6) has a tooth groove (7) at its upper end, and a toothed ring (8) is fixedly connected to the bottom of the cover plate (2), and the toothed ring (8) is engaged with the tooth groove (7).

4. The adjustable-angle fan impeller according to claim 3, characterized in that: The upper end of the cover plate (2) is fixedly connected to a connecting block (9), and the upper end of the connecting block (9) is provided with an installation head (10).

5. The adjustable-angle fan impeller according to claim 4, characterized in that: The upper end of the connecting block (9) is provided with a slot (11), and the slot (11) is provided with four sets. The slot (11) is slidably connected with a limit block (12). The connecting block (9) is provided with a sliding groove (13). The sliding groove (13) is connected to the slot (11), and the sliding groove (13) matches the limit block (12).

6. The adjustable-angle fan impeller according to claim 5, characterized in that: A spring (14) is provided inside the slide groove (13). The spring (14) is located between one side of the inner wall of the slide groove (13) and the limiting block (12). A pull rope (15) is fixedly connected to the side of the limiting block (12) near the slide groove (13). The pull rope (15) is slidably connected to the connecting block (9).

7. The adjustable-angle fan impeller according to claim 6, characterized in that: A magnetic ring (16) is fixedly connected to the periphery of the connecting block (9), and a collar (17) is sleeved on the periphery of the connecting block (9).

8. The adjustable-angle fan impeller according to claim 7, characterized in that: The inner wall of the collar (17) is provided with a rope groove (18), which is matched with the pull rope (15). The other end of the pull rope (15) is fixedly connected to the inside of the rope groove (18). The bottom of the mounting head (10) is fixedly connected with a pressing block (19), and there are four sets of pressing blocks (19). The pressing block (19) is matched with the slot (11) and the limiting block (12).

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