Energy-saving wing type axial flow fan with synchronous angle adjustment and independent replacement function

Abstract

The utility model discloses a kind of energy-saving wing type axial flow fans with synchronous angle adjustment and independent replacement function, belong to axial flow fan field, a kind of energy-saving wing type axial flow fans with synchronous angle adjustment and independent replacement function, including installation pipe, ring groove is opened in the inner wall of installation pipe, cleaning device is slidably installed in the inside of ring groove, motor is fixedly installed in the middle end of installation pipe inside, the output shaft of motor is fixedly sleeved with connecting shaft, the outer end of connecting shaft is integrally formed with mounting end, installation groove is opened in the surface of mounting end, it can realize synchronous angle adjustment transformation to all fan blades of fan, so that fan can be transformed in different fan blade form under different environment, and each fan blade can be replaced separately, reduce maintenance cost, finally can be to the fan blade of all unfolding fast rotation cleaning on surface, improve the practicability of overall fan when cleaning and using.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fans, and more specifically, to an energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement functions. Background Technology

[0002] Axial flow fans are ventilation devices with airflow direction parallel to the axis. With their characteristics of large flow rate and medium to low pressure, they have become the mainstream ventilation solution in industrial and civil fields. Axial flow fans are mainly driven by motors, which drive the connected impeller to rotate, and the gas flows inside the overall guide shroud. They are usually installed inside tunnels.

[0003] In existing technologies, axial flow fans inside tunnels use motors to control the rotation speed of the blades. However, the overall blade angle cannot be uniformly adjusted. Most blades are fixed to the central shaft by welding. Therefore, if the blades are damaged, the entire impeller structure must be replaced. Furthermore, because the blade angle cannot be adjusted, gaps will always exist. If a sealing is needed to protect the internal motor in special circumstances, it cannot achieve the desired effect. Moreover, the fixed blade position makes it difficult to clean the surface during maintenance and cleaning, further reducing the overall practicality of the device. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement functions. It can synchronously adjust and change the angle of all fan blades, thereby enabling the fan to change different blade shapes in different environments. Furthermore, each fan blade can be replaced individually, reducing maintenance costs. Finally, the outer surface of all the unfolded fan blades can be quickly rotated and cleaned, improving the overall practicality of the fan during cleaning and use.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement functions includes an installation pipe. An annular groove is formed on the inner wall of the installation pipe, and a cleaning device is slidably installed inside the annular groove. A motor is fixedly installed at the middle end of the installation pipe. The output shaft of the motor is fixedly sleeved with a connecting shaft. An installation end is integrally formed on the outer end of the connecting shaft. An installation groove is formed on the surface of the installation end, and a fan blade assembly is detachably installed inside the installation groove. A threaded groove is formed on the front of the installation end, and a bolt is detachably installed inside the threaded groove. A protective ball cover is detachably installed at one end of the bolt. A motor groove is formed on the inner wall of the protective ball cover, and a drive assembly is detachably installed inside the motor groove.

[0009] Furthermore, the cleaning device includes a sliding block, a magnetic block is fixedly installed on the top surface of the sliding block, the shape of the sliding block is adapted to the shape of the annular groove, an iron plate is fixedly installed at the uppermost end of the annular groove, the iron plate and the magnetic block are magnetically attracted to each other, and a locking groove is provided on the inner side of the annular groove.

[0010] Furthermore, a mounting rod is rotatably mounted on the bottom end of the sliding block, a cleaning pad is fixedly mounted on the side of the mounting rod, and a fixing plate is fixedly mounted on the outer side of the bottom end of the mounting rod. The shape of the fixing plate is adapted to the shape of the locking groove.

[0011] Furthermore, the fan blade assembly includes a guide vane, a connecting rod is fixedly installed at the bottom end of the guide vane, a bolt is installed on the internal thread of the connecting rod, a connecting groove is detachably installed at the outer end of the connecting rod, a limit post is fixedly installed at the bottom end of the connecting groove, and a helical gear is fixedly installed at the bottom end of the limit post.

[0012] Furthermore, the limiting post is rotatably installed inside the mounting end, and the bolt and the connecting groove are threadedly connected to each other.

[0013] Furthermore, the number of guide vanes is eight, and the left and right sides of the eight guide vanes are all set with rounded corners, and the top of the middle of the eight guide vanes is attached to the inner wall of the mounting tube.

[0014] Furthermore, the drive assembly includes a servo motor, the output shaft of which is fixedly sleeved with a connecting disk, and a helical gear ring is fixedly installed on the outer wall of the connecting disk. The helical gear ring and eight helical gears mesh with each other. The servo motor is fixedly installed on the outer end of the mounting end, and the connecting disk is rotatably installed inside the outer end of the mounting end.

[0015] Furthermore, the surface of the protective ball cover is provided with a second threaded groove, the interior of which is adapted to the size of the bolt.

[0016] 3. Beneficial Effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) This solution utilizes the cleaning device to perform state changes so that it can quickly clean the surface of the fan blades and not affect the airflow rate when the fan blades are in operation. It is also simple to operate and improves the overall practicality of the device.

[0019] (2) This solution utilizes the fan blade assembly to synchronously adjust the rotation of the fan blade overall collaborative drive assembly, so that its angle can change to adapt to the airflow requirements under different conditions. Furthermore, individual blades can be disassembled and replaced, reducing maintenance costs and further improving the practicality of the overall device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional assembly structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the cleaning device structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the fan blade assembly structure in this utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional assembly structure of the protective ball cover and the drive component in this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Mounting pipe; 2. Ring groove; 3. Cleaning device; 4. Coupling shaft; 5. Mounting end; 6. Fan blade assembly; 7. Drive assembly; 8. Protective ball cover; 301. Sliding block; 302. Magnetic block; 303. Mounting rod; 304. Cleaning pad; 305. Fixing insert plate; 501. Mounting groove; 502. Threaded groove one; 601. Guide vane; 602. Connecting rod; 603. Bolt; 604. Connecting groove; 605. Limiting post; 606. Helical gear; 701. Servo motor; 702. Connecting disc; 703. Helical gear ring; 801. Threaded groove two; 802. Motor groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] Please see Figure 1-5 An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement functions includes an installation pipe 1. The inner wall of the installation pipe 1 has an annular groove 2. A cleaning device 3 is slidably installed inside the annular groove 2. A motor is fixedly installed in the middle of the installation pipe 1. The output shaft of the motor is fixedly sleeved with a connecting shaft 4. An installation end 5 is integrally formed on the outer end of the connecting shaft 4. An installation groove 501 is opened on the surface of the installation end 5. A fan blade assembly 6 is detachably installed inside the installation groove 501. A threaded groove 502 is opened on the front of the installation end 5. A bolt is detachably installed inside the threaded groove 502. A protective ball cover 8 is detachably installed at one end of the bolt. A motor groove 802 is opened on the inner wall of the protective ball cover 8. A drive assembly 7 is detachably installed inside the motor groove 802.

[0032] It should be noted that the motor mainly used to drive the fan blades to rotate is installed inside the mounting pipe 1 in this application. Its location and installation connection method are all existing mature technologies. Therefore, this application will not elaborate on them. Secondly, the corresponding grooves opened inside the annular groove 2 and the iron plates installed are also existing foreseeable technologies. Therefore, this application will not elaborate on them.

[0033] The fan blade assembly 6 includes guide vanes 601. A connecting rod 602 is fixedly installed at the bottom end of the guide vane 601. A bolt 603 is threadedly installed inside the connecting rod 602. A connecting groove 604 is detachably installed at the outer end of the connecting rod 602. A limiting post 605 is fixedly installed at the bottom end of the connecting groove 604. A helical gear 606 is fixedly installed at the bottom end of the limiting post 605. The limiting post 605 is rotatably installed inside the mounting end 5. The bolt 603 and the connecting groove 604 are threadedly connected to each other. There are eight guide vanes 601, and both sides of the eight guide vanes 601 are configured with... The rounded corner structure has the top of the middle of each of the eight guide vanes 601 attached to the inner wall of the mounting tube 1. The drive assembly 7 includes a servo motor 701. The output shaft of the servo motor 701 is fixedly sleeved with a connecting plate 702. A helical gear ring 703 is fixedly installed on the outer wall of the connecting plate 702. The helical gear ring 703 and the eight helical gears 606 mesh with each other. The servo motor 701 is fixedly installed on the outer end of the mounting end 5. The connecting plate 702 is rotatably installed inside the outer end of the mounting end 5. The surface of the protective ball cover 8 has a threaded groove 801. The size of the threaded groove 801 is adapted to the size of the bolt.

[0034] Specifically, the mounting slot 501 facilitates the assembly and disassembly of the bolt 603 as a whole, thereby enabling the individual guide vanes 601 to be disassembled and replaced. Secondly, the bolt 603, in conjunction with the connecting slot 604 and the connecting rod 602, provides a secure connection, ensuring that the rotation angle of the guide vane 601 and the rotation angle of the helical gear 606 are always synchronized. Finally, the limiting post 605 limits the rotation of the helical gear 606 as a whole, preventing rotational deviation and ensuring stable meshing between the helical gear 606 and the helical gear ring 703. By setting both sides of the guide vane 601 to a rounded corner structure, it is ensured that when the eight guide vanes 601 rotate to a level and closed position, there will be no mutual repulsion that would prevent them from closing, thus ensuring normal rotation.

[0035] The cleaning device 3 includes a sliding block 301, a magnetic block 302 fixedly installed on the top surface of the sliding block 301, the shape of the sliding block 301 being adapted to the shape of the annular groove 2, an iron sheet fixedly installed at the uppermost end of the annular groove 2, the iron sheet and the magnetic block 302 being magnetically attracted to each other, a locking groove being provided on the inner side of the annular groove 2, an installation rod 303 being rotatably installed at the bottom end of the sliding block 301, a cleaning pad 304 being fixedly installed on the side of the installation rod 303, and a fixing plate 305 being fixedly installed on the outer side of the bottom end of the installation rod 303, the shape of the fixing plate 305 being adapted to the shape of the locking groove;

[0036] Specifically, the magnetic block 302, in conjunction with the iron sheet, can initially fix the position of the sliding block 301, ensuring that the fan will not slide when it is guiding the airflow. Furthermore, the mounting rod 303 can be completely hidden inside the annular groove 2 by the fixed insert plate 305, so that it will not appear at the front end of the fan blade guiding area and affect the airflow, thus improving the overall practicality of the device. After unfolding, the mounting rod 303 can be used to uniformly scrape and clean the outer wall of the flat and closed guide vane 601 through the cleaning pad 304, improving the convenience of cleaning operations.

[0037] The working principle of this utility model is as follows: The starting motor drives the connecting shaft 4 to rotate, and the connecting shaft 4 drives the entire mounting end 5, causing the guide vane 601 to rotate continuously and accelerate the airflow. Then, if adjustment is needed, the servo motor 701 is started directly through existing remote control technology to drive the helical gear ring 703 to rotate. This, in conjunction with the helical gear 606, drives the connecting groove 604, causing the corresponding guide vane 601 to deflect. It should be noted that the bottom surface of the guide vane 601 is not completely attached to the outer wall of the mounting end 5; there is a certain gap between them to ensure the normal rotation of the guide vane 601. When the guide vane 601 is damaged and needs to be replaced, At this time, remove the protective ball cover 8, then remove the corresponding bolt 603 from the inside of the mounting groove 501, and then remove and replace the guide vane 601 from the inside of the connecting groove 604 via the connecting rod 602. Finally, when the surface of the guide vane 601 needs to be cleaned, start the servo motor 701 to drive all the guide vanes 601 to adjust to the same horizontal plane, then take the mounting rod 303 out of the inside of the annular groove 2, and the fixing plate 305 disengages from the corresponding locking groove. Then, operate the mounting rod 303 to drive the sliding block 301 to slide along the inside of the annular groove 2. During the process, the cleaning pad 304 adheres to the outer wall of the guide vane 601 to complete the cleaning.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An energy-saving wing-type axial flow fan with synchronous angle adjustment and independent replacement function, comprising a mounting pipe (1), characterized in that: The inner wall of the mounting tube (1) is provided with an annular groove (2), and a cleaning device (3) is slidably installed inside the annular groove (2). A motor is fixedly installed at the middle end of the mounting tube (1), and a connecting shaft (4) is fixedly sleeved on the output shaft of the motor. An installation end (5) is integrally formed at the outer end of the connecting shaft (4). An installation groove (501) is provided on the surface of the installation end (5). A fan blade assembly (6) is detachably installed inside the installation groove (501). A threaded groove (502) is provided on the front side of the installation end (5). A bolt is detachably installed inside the threaded groove (502). A protective ball cover (8) is detachably installed at one end of the bolt. A motor groove (802) is provided on the inner wall of the protective ball cover (8). A drive assembly (7) is detachably installed inside the motor groove (802).

2. The energy-saving winged axial flow fan with synchronous angle adjustment and independent replacement function according to claim 1, characterized in that: The cleaning device (3) includes a sliding block (301), a magnetic block (302) is fixedly installed on the top surface of the sliding block (301), the shape of the sliding block (301) is adapted to the shape of the annular groove (2), an iron sheet is fixedly installed at the uppermost end of the annular groove (2), the iron sheet and the magnetic block (302) are magnetically attracted to each other, and a locking groove is provided on the inner side of the annular groove (2).

3. The energy-saving winged axial flow fan with synchronous angle adjustment and independent replacement function according to claim 2, characterized in that: The bottom end of the sliding block (301) is rotatably mounted with an installation rod (303), and a cleaning pad (304) is fixedly mounted on the side of the installation rod (303). A fixing plate (305) is fixedly mounted on the outer side of the bottom end of the installation rod (303). The shape of the fixing plate (305) is adapted to the shape of the locking groove.

4. An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement function as described in claim 1, characterized in that: The fan blade assembly (6) includes a guide vane (601), a connecting rod (602) is fixedly installed at the bottom end of the guide vane (601), a bolt (603) is installed on the internal thread of the connecting rod (602), a connecting groove (604) is detachably installed at the outer end of the connecting rod (602), a limit post (605) is fixedly installed at the bottom end of the connecting groove (604), and a helical gear (606) is fixedly installed at the bottom end of the limit post (605).

5. An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement function according to claim 4, characterized in that: The limiting post (605) is rotatably installed inside the mounting end (5), and the bolt (603) and the connecting groove (604) are threadedly connected to each other.

6. An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement function according to claim 4, characterized in that: The number of the guide vanes (601) is eight. The left and right sides of the eight guide vanes (601) are all set with rounded corners. The top of the middle of the eight guide vanes (601) is attached to the inner wall of the mounting pipe (1).

7. An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement function according to claim 1, characterized in that: The drive assembly (7) includes a servo motor (701), the output shaft of which is fixedly sleeved with a connecting plate (702), and a helical gear ring (703) is fixedly installed on the outer wall of the connecting plate (702). The helical gear ring (703) and eight helical gears (606) mesh with each other. The servo motor (701) is fixedly installed on the outer end of the mounting end (5), and the connecting plate (702) is rotatably installed inside the outer end of the mounting end (5).

8. An energy-saving airfoil axial flow fan with synchronous angle adjustment and independent replacement function according to claim 1, characterized in that: The protective ball cover (8) has a threaded groove (801) on its surface, and the interior of the threaded groove (801) is adapted to the size of the bolt.

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