Quick fan impeller angle adjusting device

Abstract

The utility model relates to the technical field of fans, and discloses a fan impeller angle rapid adjusting device which comprises a protective shell, a first baffle is fixedly connected to the outer portion of the protective shell, a hinge plate is arranged at one end of the protective shell, and a heat dissipation opening is fixedly connected to the other end of the protective shell. A supporting frame is fixedly connected to the interior of one side of the protective shell, a driving assembly is fixedly connected to the exterior of the supporting frame and comprises a supporting block, the exterior of the supporting block is fixedly connected to the exterior of the supporting frame, and a first servo motor is fixedly connected to the interior of one side of the supporting block. According to the utility model, the first servo motor is started to drive the rotating rod to rotate, so that the sliding block slides along with the rotation of the rotating rod, finally, the purpose of adjusting the angle of the fan blade is realized, and the blade can keep a reasonable airflow attack angle under different working conditions, vortex and separation loss are reduced, and the fatigue stress of the blade is reduced by adjusting the angle.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, and in particular to a wind turbine impeller angle quick adjustment device. Background Technology

[0002] The impeller is the core component of a fan, consisting of blades and a hub. It rotates via a shaft, converting mechanical energy into gas energy to achieve functions such as ventilation. Common types include axial, centrifugal, and mixed-flow impellers. The shape and number of blades affect the fan's performance. With changing operating conditions, adjustable impeller angle technology has emerged. It can flexibly adjust the impeller angle according to actual needs, optimizing fan performance, improving efficiency, and extending service life.

[0003] Traditional wind turbine impeller angle quick adjustment devices achieve angle changes through mechanical, hydraulic, or electric means. However, due to the difficulty in adjusting the angle, the blades experience uneven aerodynamic loads when operating in non-designed conditions, leading to fatigue cracks or structural damage. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick adjustment device for the impeller angle of a fan, which aims to improve the traditional quick adjustment device for the impeller angle of a fan, which suffers from fatigue cracks or structural damage due to the difficulty in adjusting the angle.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fan impeller angle quick adjustment device includes a protective housing, a first baffle fixedly connected to the outside of the protective housing, a hinge plate provided at one end of the protective housing, a heat dissipation vent fixedly connected to the other end of the protective housing, a support frame fixedly connected inside one side of the protective housing, and a drive assembly fixedly connected to the outside of the support frame.

[0007] Preferably, the drive assembly includes a support block, which is fixedly connected to the outside of the support frame. A first servo motor is fixedly connected to one side of the support block, and a rotating rod is connected to the output end of the first servo motor. A swing assembly is provided inside the other side of the support block.

[0008] Preferably, the swing assembly includes a swing rod, the top and bottom ends of which are rotatably connected to the inside of the support block, and one end of the swing rod is fixedly connected to a swing plate, the inside of which is slidably connected to the outside of the sliding block.

[0009] Preferably, a second servo motor is fixedly connected to the other end of the swing arm, and a pushing component is provided at the output end of the second servo motor, with a third connecting rod provided at one end of the pushing component.

[0010] Preferably, the pushing component includes a first connecting rod, a first spring is provided on the outer side of one side of the first connecting rod, a sliding sleeve is provided at one end of the first spring, a ball is provided inside one side of the sliding sleeve, the outer side of the ball is slidably connected to the inner side of one side of the first connecting rod, a second connecting rod is provided outside the ball, and a locking component is provided inside the second connecting rod.

[0011] Preferably, the other side of the sliding sleeve is slidably connected to the outside of the other side of the first connecting rod, and the other side of the first connecting rod is slidably connected to the outside of one side of the second connecting rod.

[0012] Preferably, the locking assembly includes a second baffle, one side of which is fixedly connected to the inside of a second connecting rod, and a first sliding rod is slidably connected inside the second baffle. One end of the first sliding rod is fixedly connected to a locking block, one end of the locking block is provided with a second spring, and one end of the second spring is provided on the other side of the second baffle.

[0013] Preferably, one end of the second connecting rod is fixedly connected to one end of the third connecting rod, the other end of the third connecting rod is fixedly connected to a fan blade, a second sliding rod is fixedly connected to the outside of the third connecting rod, and the bottom end of the second sliding rod is slidably connected to the inside of the other side of the protective shell.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the first servo motor drives the rotating rod to rotate, and then the sliding block slides with the rotation of the rotating rod. Then, the swing plate swings under the drive of the sliding block, and the swing rod swings with the swing plate. Finally, the purpose of adjusting the angle of the fan blade is achieved. The adjustable angle allows the blade to maintain a reasonable airflow angle under different working conditions, reducing eddy current and separation losses, and reducing blade fatigue stress.

[0016] 2. In this utility model, the first spring is pushed to compress the sliding sleeve, and then the ball slides under the action of the first spring. This causes the connection between the first connecting rod and the second connecting rod to loosen. Under the action of the second spring, the locking block slides with the first sliding rod, thus achieving the purpose of quickly replacing the fan blade. The modular design separates the impeller from the transmission system. When replacing, there is no need to disassemble the motor, bearings and other components, avoiding problems such as wear of the sealing ring and stripping of bolts caused by repeated disassembly and assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a fan impeller angle rapid adjustment device proposed in this utility model;

[0018] Figure 2This is a partial structural diagram of the hinge plate of a fan impeller angle quick adjustment device proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of the support block of a fan impeller angle quick adjustment device proposed in this utility model;

[0020] Figure 4 This is a partial structural diagram of the second sliding rod of a fan impeller angle quick adjustment device proposed in this utility model;

[0021] Figure 5 This is a partial structural diagram of the locking block of a fan impeller angle quick adjustment device proposed in this utility model.

[0022] Legend:

[0023] 1. Protective casing; 2. First baffle; 3. Hinge plate; 4. Heat dissipation vent; 5. Support frame; 6. Drive assembly; 601. Support block; 602. First servo motor; 603. Rotating rod; 604. Sliding block; 7. Swing assembly; 701. Swing rod; 702. Swing plate; 8. Second servo motor; 9. Push assembly; 901. First connecting rod; 902. First spring; 903. Sliding sleeve; 904. Ball; 905. Second connecting rod; 10. Locking assembly; 1001. Second baffle; 1002. First sliding rod; 1003. Locking block; 1004. Second spring; 11. Third connecting rod; 12. Fan blade; 13. Second sliding rod. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1-3 An embodiment of this utility model is provided: a fan impeller angle quick adjustment device, including a protective shell 1, a first baffle 2 fixedly connected to the outside of the protective shell 1, a hinge plate 3 provided at one end of the protective shell 1, a heat dissipation vent 4 fixedly connected to the other end of the protective shell 1, a support frame 5 fixedly connected inside one side of the protective shell 1, and a drive assembly 6 fixedly connected to the outside of the support frame 5.

[0026] Specifically, the protective shell 1 is used to support and fix the first baffle 2, and the first baffle 2 can assist in the installation of the device. The protective shell 1 is also used to support and fix the hinge plate 3, and the extent to which the hinge plate 3 is pulled can change the air volume. The protective shell 1 is then used to support and fix the heat dissipation vent 4, and the heat dissipation vent 4 can exchange the hot air generated by the internal motor and continuously supply air to the interior. The protective shell 1 is also used to support and fix the support frame 5, and the support frame 5 provides stable support for the drive assembly 6. The protective shell 1 has a sliding groove inside, which can provide guidance for the sliding of the second sliding rod 13 and assist the second sliding rod 13 in sliding.

[0027] Reference Figures 2-4 The drive assembly 6 includes a support block 601, which is externally fixedly connected to the outside of the support frame 5. A first servo motor 602 is fixedly connected to one side of the support block 601, and a rotating rod 603 is connected to the output end of the first servo motor 602. A swing assembly 7 is provided inside the other side of the support block 601. The swing assembly 7 includes a swing rod 701, the top and bottom ends of which are rotatably connected inside the support block 601. A swing plate 702 is fixedly connected to one end of the swing rod 701, and the inside of the swing plate 702 is slidably connected to the outside of the sliding block 604. A second servo motor 8 is fixedly connected to the other end of the swing rod 701. A push assembly 9 is provided at the output end of the second servo motor 8, and a third connecting rod 11 is provided at one end of the push assembly 9.

[0028] Specifically, the support block 601 supports the stable operation of the first servo motor 602, and the first servo motor 602 drives the rotating rod 603 to rotate. The sliding block 604 slides down under the reaction force of the first servo motor 602, and the swing plate 702 swings with the sliding block 604. The swing plate 702 drives the swing rod 701 to swing. The swing plate 702 has a sliding groove to provide guidance for the sliding block 604, and can make the sliding block 604 slide from top to bottom, thereby achieving the effect of adjusting the angle of the fan blade 12, reducing eddy current and separation loss, and reducing blade fatigue stress.

[0029] Reference Figures 3-5The pushing component 9 includes a first connecting rod 901. A first spring 902 is disposed on the outer side of one side of the first connecting rod 901. A sliding sleeve 903 is disposed at one end of the first spring 902. A ball 904 is disposed inside one side of the sliding sleeve 903. The outer side of the ball 904 is slidably connected to the inner side of one side of the first connecting rod 901. A second connecting rod 905 is disposed outside the ball 904. A locking component 10 is disposed inside the second connecting rod 905. The inner side of the other sliding sleeve 903 is slidably connected to the outer side of the other side of the first connecting rod 901. The inner side of the other side of the first connecting rod 901 is slidably connected to the outer side of one side of the second connecting rod 905. The locking component 10 includes a second baffle 1001. One side of the second baffle 1001 is fixedly connected to the inside of the second connecting rod 905. The inside of the second baffle 1001 is slidably connected to the first sliding rod 1002. One end of the first sliding rod 1002 is fixedly connected to the locking block 1003. One end of the locking block 1003 is provided with the second spring 1004. One end of the second spring 1004 is located on the outside of the other side of the second baffle 1001. One end of the second connecting rod 905 is fixedly connected to one end of the third connecting rod 11. The other end of the third connecting rod 11 is fixedly connected to the fan blade 12. The outside of the third connecting rod 11 is fixedly connected to the second sliding rod 13. The bottom end of the second sliding rod 13 is slidably connected to the inside of the other side of the protective shell 1.

[0030] Specifically, by pushing the sliding sleeve 903 to compress the first spring 902, and the first connecting rod 901 to support the compression of the first spring 902, the sliding sleeve 903 drives the ball 904 to slide, and the first connecting rod 901 supports the sliding of the ball 904. This causes the connection between the first connecting rod 901 and the second connecting rod 905 to loosen, and it can no longer continuously provide support for the connection between the locking block 1003 and the other locking block 1003. This causes the second spring 1004 to stretch. However, the second spring 1004 drives the first sliding rod 1002 and the locking block 1003 to slide, and the second baffle 1001 supports the first sliding rod 1002 and the second spring 1004. This allows for quick replacement of the fan blade 12 and avoids problems such as wear of the sealing ring and stripping of bolts caused by repeated disassembly and assembly.

[0031] Working principle: When it is necessary to adjust the angle of the second sliding rod 13, the first servo motor 602 is started to drive the rotating rod 603 to rotate, which at the same time drives the sliding block 604 to slide, causing the swing plate 702 to swing, which in turn drives the swing rod 701 to swing, causing the second servo motor 8 to swing, thereby achieving the effect of adjusting the angle of the fan blade 12. The adjustable angle allows the blade to maintain a reasonable airflow angle under different working conditions, reducing eddy current and separation losses, and reducing blade fatigue stress.

[0032] When the fan blade 12 needs to be replaced, the sliding sleeve 903 is first pushed to compress the first spring 902, thereby causing the ball 904 to slide. At the same time, the connection between the first connecting rod 901 and the second connecting rod 905 is loosened, which will stretch the second spring 1004, further causing the first sliding rod 1002 to slide with the locking block 1003. This allows for quick replacement of the fan blade 12. The modular design separates the impeller from the transmission system, eliminating the need to disassemble the motor, bearings, and other components during replacement, thus avoiding problems such as wear of the seals and stripped bolts caused by repeated disassembly and assembly.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-adjustment device for a fan impeller angle, comprising a protective housing (1), characterized in that: The protective shell (1) is fixedly connected to the outside of a first baffle (2), a hinge plate (3) is provided at one end of the protective shell (1), a heat dissipation vent (4) is fixedly connected at the other end of the protective shell (1), a support frame (5) is fixedly connected inside one side of the protective shell (1), and a drive assembly (6) is fixedly connected to the outside of the support frame (5).

2. The fan impeller angle quick adjustment device according to claim 1, characterized in that: The drive assembly (6) includes a support block (601), which is fixedly connected to the outside of the support frame (5). A first servo motor (602) is fixedly connected to one side of the support block (601), and a rotating rod (603) is connected to the output end of the first servo motor (602). A swing assembly (7) is provided inside the other side of the support block (601).

3. The fan impeller angle quick adjustment device according to claim 2, characterized in that: The swing assembly (7) includes a swing rod (701), the top and bottom ends of which are rotatably connected to the inside of the support block (601). One end of the swing rod (701) is fixedly connected to a swing plate (702), and the inside of the swing plate (702) is slidably connected to the outside of the sliding block (604).

4. The fan impeller angle quick adjustment device according to claim 3, characterized in that: The other end of the swing arm (701) is fixedly connected to a second servo motor (8), and the output end of the second servo motor (8) is provided with a push assembly (9), and one end of the push assembly (9) is provided with a third connecting rod (11).

5. The fan impeller angle quick adjustment device according to claim 4, characterized in that: The pushing component (9) includes a first connecting rod (901), a first spring (902) is provided on the outside of one side of the first connecting rod (901), a sliding sleeve (903) is provided at one end of the first spring (902), a ball (904) is provided inside one side of the sliding sleeve (903), the outside of the ball (904) is slidably connected to the inside of one side of the first connecting rod (901), a second connecting rod (905) is provided outside the ball (904), and a locking component (10) is provided inside the second connecting rod (905).

6. The fan impeller angle quick adjustment device according to claim 5, characterized in that: The other side of the sliding sleeve (903) is internally slidably connected to the other side of the first connecting rod (901), and the other side of the first connecting rod (901) is internally slidably connected to the other side of the second connecting rod (905).

7. The fan impeller angle quick adjustment device according to claim 5, characterized in that: The locking assembly (10) includes a second baffle (1001), one side of which is fixedly connected to the inside of a second connecting rod (905). A first sliding rod (1002) is slidably connected inside the second baffle (1001). A locking block (1003) is fixedly connected to one end of the first sliding rod (1002). A second spring (1004) is provided at one end of the locking block (1003), and one end of the second spring (1004) is located outside the other side of the second baffle (1001).

8. The fan impeller angle quick adjustment device according to claim 5, characterized in that: One end of the second connecting rod (905) is fixedly connected to one end of the third connecting rod (11), and the other end of the third connecting rod (11) is fixedly connected to a fan blade (12). The outside of the third connecting rod (11) is fixedly connected to a second sliding rod (13), and the bottom end of the second sliding rod (13) is slidably connected to the inside of the other side of the protective shell (1).

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