Novel axial flow fan

Abstract

The utility model relates to a novel axial flow fan which comprises a fan shell, driving mechanisms are arranged in the fan shell and on the top of the fan shell, each driving mechanism comprises a transverse plate arranged in the fan shell, the bottom of each transverse plate is limited by a bearing to be rotationally connected with a rotating shaft, and blades are fixedly connected to the outer surface of each rotating shaft. A supporting plate is arranged at the top of the fan shell, a motor is arranged at the top of the supporting plate, a linkage assembly is arranged at one end of the motor and fixedly connected with the rotating shaft, and a supporting rod is fixedly connected to the bottom of the supporting plate. According to the novel axial flow fan, the motor is arranged outside the fan shell, when the motor breaks down, a maintainer does not need to overall disassemble the fan, the motor can be directly maintained or replaced, the maintenance process is greatly simplified, the maintenance time is shortened, and the maintenance efficiency is improved; and meanwhile, the risk that other parts of the fan are damaged in the maintenance process is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fan technology, specifically a novel axial flow fan. Background Technology

[0002] Axial flow fans have a wide range of applications. They are a type of fan in which the airflow direction is the same as the axis of the fan blades. Examples include electric fans and air conditioner outdoor unit fans. They are called "axial flow" fans because the gas flows parallel to the fan axis. Axial flow fans are usually used in applications where the flow rate requirement is high and the pressure requirement is low. Axial flow fans are fixed in position and move the air.

[0003] However, most existing axial flow fans have the motor and other parts directly installed inside the casing in their structural design. This traditional design has gradually revealed many drawbacks in actual use. When the motor is located inside the casing, if the motor fails, maintenance personnel need to disassemble the entire fan to access the motor, which is extremely cumbersome. Since the internal space of the fan casing is usually quite small and the operating space is limited, maintenance personnel face great difficulties when disassembling and installing the motor. This not only increases maintenance time but also easily causes accidental damage to other components of the fan during operation. Therefore, a new type of axial flow fan is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a new type of axial flow fan, which has the advantages of easy maintenance and strong practicality, and solves the problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel axial flow fan, comprising a fan housing, wherein a drive mechanism is provided inside and at the top of the fan housing.

[0006] Furthermore, the drive mechanism includes a horizontal plate disposed inside the fan housing, a rotating shaft being rotatably connected to the bottom of the horizontal plate via a bearing, blades being fixedly connected to the outer surface of the rotating shaft, a support plate being disposed on the top of the fan housing, a motor being disposed on the top of the support plate, and a linkage component being disposed at one end of the motor, the linkage component being fixedly connected to the rotating shaft.

[0007] Furthermore, a support rod is fixedly connected to the bottom of the support plate, the support rod penetrates the fan housing, and a first nut is threaded onto the outer surface of the support rod.

[0008] Furthermore, a protective shell is provided inside the fan housing, and the linkage component is located inside the protective shell.

[0009] Furthermore, a mounting platform is fixedly connected to the bottom of the fan casing, and the mounting platform has mounting holes inside.

[0010] Furthermore, dust covers are provided at both ends of the fan housing, and a first bolt is provided inside each of the two dust covers. A second nut is threaded onto the outer surface of the first bolt. The first bolt and the second nut are used to install and remove the dust covers.

[0011] Furthermore, a protective cover is hinged to the top of the fan casing, and a second bolt is threaded inside the protective cover. The second bolt is used for installing and removing the protective cover, and the protective shell is fixedly connected inside the protective cover.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. This new type of axial flow fan has the motor located outside the fan casing. When the motor fails, maintenance personnel do not need to disassemble the entire fan and can directly repair or replace the motor. This design greatly simplifies the maintenance process, shortens the maintenance time, improves maintenance efficiency, and also reduces the risk of damage to other parts of the fan during the maintenance process.

[0014] 2. When it is necessary to repair specific parts of the drive mechanism of this new type of axial flow fan, the second bolt can be removed from the protective cover, and the protective cover can be rotated to flip out the specific parts of the drive mechanism, which facilitates the repair and inspection of the parts of the drive mechanism. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram from another perspective of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the internal structure of the fan casing of this utility model.

[0019] In the diagram: 1. Fan housing, 101. Protective cover, 102. Second bolt, 103. Second nut, 104. First bolt, 2. Dust cover, 3. Mounting platform, 4. Drive mechanism, 401. Horizontal plate, 402. Rotating shaft, 403. Blade, 404. Support rod, 405. Support plate, 406. Motor, 407. Protective shell, 408. Linkage assembly, 409. First nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 The novel axial flow fan in this embodiment includes a fan housing 1, and a drive mechanism 4 is provided inside and on the top of the fan housing 1.

[0022] The drive mechanism 4 includes a horizontal plate 401 disposed inside the fan housing 1. A rotating shaft 402 is rotatably connected to the bottom of the horizontal plate 401 via a bearing. Blades 403 are fixedly connected to the outer surface of the rotating shaft 402. A support plate 405 is disposed on the top of the fan housing 1, and a motor 406 is disposed on the top of the support plate 405. A linkage component 408 is disposed at one end of the motor 406. The linkage component 408 can be composed of a belt and pulley, or a sprocket and chain. The linkage component 408 is fixedly connected to the rotating shaft 402. A protective shell 407 is disposed inside the fan housing 1, and the linkage component 408 is located inside the protective shell 407.

[0023] The motor 406 is located outside the fan casing 4, allowing for better heat dissipation. The relatively open external space facilitates smoother airflow, enabling the motor 4 to dissipate the heat generated during operation in a timely manner. This prevents the motor from aging prematurely due to prolonged high-temperature operation, thereby extending its service life and improving the overall performance and reliability of the fan.

[0024] Secondly, a support rod 404 is fixedly connected to the bottom of the support plate 405. The support rod 404 passes through the fan housing 1, and a first nut 409 is threaded onto the outer surface of the support rod 404. By setting the support rod 404, the support plate 405 and the first nut 409, the operating height of the motor 406 can be reasonably set.

[0025] Additionally, a mounting platform 3 is fixedly connected to the bottom of the fan housing 1. The mounting platform 3 has mounting holes inside, which facilitates the installation of the axial flow fan in a suitable position. Dust covers 2 are provided at both ends of the fan housing 1. Each dust cover 2 has a first bolt 104 inside. The outer surface of the first bolt 104 is threaded with a second nut 103. The first bolt 104 and the second nut 103 are used for installing and removing the dust covers 2.

[0026] Furthermore, a protective cover 101 is hinged to the top of the fan housing 1, and a second bolt 102 is threaded inside the protective cover 101. The second bolt 102 is used for the installation and removal of the protective cover 101, and the protective shell 407 is fixedly connected inside the protective cover 101.

[0027] When it is necessary to repair specific parts of the drive mechanism 4, the second bolt 102 can be removed from the protective cover 101, and the protective cover 101 can be rotated to flip out the specific parts of the drive mechanism 4, making it convenient to repair and inspect the parts of the drive mechanism 4.

[0028] The working principle of the above embodiments is as follows:

[0029] (1) In this new type of axial flow fan, the motor 406 is set outside the fan housing 1. When the motor 403 fails, the maintenance personnel do not need to disassemble the fan as a whole, and can directly repair or replace the motor. This design greatly simplifies the maintenance process, shortens the maintenance time, improves the maintenance efficiency, and also reduces the risk of damage to other parts of the fan during the maintenance process.

[0030] (2) When it is necessary to repair the specific parts of the drive mechanism 4, the second bolt 102 can be removed from the protective cover 101 and the protective cover 101 can be rotated to turn out the specific parts of the drive mechanism 4, so as to facilitate the repair and inspection of the parts of the drive mechanism 4.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel axial flow fan, comprising a fan casing (1), characterized in that: The fan casing (1) is equipped with a drive mechanism (4) inside and on top. The drive mechanism (4) includes a horizontal plate (401) disposed inside the fan housing (1). The bottom of the horizontal plate (401) is connected to a rotating shaft (402) through a bearing. Blades (403) are fixedly connected to the outer surface of the rotating shaft (402). A support plate (405) is disposed on the top of the fan housing (1). A motor (406) is disposed on the top of the support plate (405). A linkage component (408) is disposed at one end of the motor (406). The linkage component (408) is fixedly connected to the rotating shaft (402).

2. The novel axial flow fan according to claim 1, characterized in that: The bottom of the support plate (405) is fixedly connected to a support rod (404), the support rod (404) penetrates the fan housing (1), and the outer surface of the support rod (404) is threaded with a first nut (409).

3. A novel axial flow fan according to claim 1, characterized in that: The fan housing (1) is provided with a protective shell (407) inside, and the linkage component (408) is located inside the protective shell (407).

4. A novel axial flow fan according to claim 1, characterized in that: The bottom of the fan casing (1) is fixedly connected to an installation platform (3), and the installation platform (3) has an installation hole inside.

5. A novel axial flow fan according to claim 1, characterized in that: Dust covers (2) are provided at both ends of the fan housing (1). A first bolt (104) is provided inside each of the two dust covers (2). A second nut (103) is threaded onto the outer surface of the first bolt (104). The first bolt (104) and the second nut (103) are used to install and remove the dust covers (2).

6. A novel axial flow fan according to claim 3, characterized in that: The top of the fan housing (1) is hinged with a protective cover (101), and a second bolt (102) is threaded inside the protective cover (101). The second bolt (102) is used to install and remove the protective cover (101), and the protective shell (407) is fixedly connected inside the protective cover (101).

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