Intelligent substation axial flow fan and installation method thereof

Abstract

The application relates to the technical field of axial flow fans, in particular to an intelligent substation axial flow fan and a mounting method thereof. The axial flow fan comprises a shell, mounting grilles are arranged at the two ends of the shell, a main shaft is arranged in the shell, the main shaft is rotationally connected with the mounting grilles, and a rotary driving assembly is further arranged on the shell; the axial flow fan further comprises a supporting device and an auxiliary control device; the supporting device comprises a first mounting bracket and a second mounting bracket; the first mounting bracket and the second mounting bracket are sleeved on the main shaft, and the second mounting bracket can slide along the axial direction of the main shaft; the first mounting bracket and the second mounting bracket are both provided with protruding portions; at least three blades are arranged on the first mounting bracket and the second mounting bracket; and the auxiliary control device comprises a first linear driving assembly which is arranged on the shell. The application realizes the function of reducing the noise of the axial flow fan during work, and solves the problem that the noise of the traditional axial flow fan cannot be controlled during work.

Description

Technical Field

[0001] This invention relates to the field of axial flow fan technology, specifically to an intelligent substation axial flow fan and its installation method. Background Technology

[0002] Axial flow fans have a wide range of applications, producing airflow parallel to the fan's axis. The angle between the blades and the airflow in axial flow fans can be adjusted or non-adjustable. Adjustable blade axial flow fans allow for adjustment of the blade angle, thus changing the flow rate. However, existing blade adjustments require shutdown, significantly reducing the equipment's practicality.

[0003] To address this, Chinese patent CN219388201U discloses an adjustable impeller structure for an axial flow fan. Through an adjustment mechanism and a guide mechanism, it can simultaneously adjust the angle of four blades. The guide mechanism drives the mounting plate to reciprocate on the output shaft, thereby driving the blades to rotate on the shaft through four connecting rods and four fixed rods. This achieves the function of simultaneously and synchronously adjusting the angle of the four blades. Furthermore, under the action of the guide mechanism, the angle of the four blades can be adjusted without stopping the motor.

[0004] The axial flow fans used in smart substations are controlled by a controller and are intelligently adjusted according to the substation's workload and heat generation. Therefore, the airflow needs to be flexibly adjusted during use. However, axial flow fans generate significant noise during operation, which has a considerable impact on the working environment. Existing axial flow fans, with fixed power, cannot reduce noise; they can only reduce noise by decreasing the speed. This not only significantly affects the airflow but also has a limited noise reduction effect. Consequently, they cannot be adapted to the intelligent control system of smart substations and have poor adjustment flexibility. Summary of the Invention

[0005] To address the aforementioned issues, an intelligent substation axial flow fan and its installation method are provided. The fan solves the problem of uncontrollable noise during operation of traditional axial flow fans by using a casing, support device, and auxiliary control device.

[0006] To address the problems of existing technologies, this invention provides an intelligent substation axial flow fan, comprising a housing with mounting grilles at both ends, a main shaft inside the housing rotatably connected to the mounting grilles, and a rotary drive assembly for driving the main shaft to rotate. The axial flow fan also includes a support device and an auxiliary control device. The support device includes a first mounting bracket and a second mounting bracket. The first and second mounting brackets are sleeved on the main shaft, and the second mounting bracket can slide relative to the main shaft along its axial direction. When the main shaft rotates, it drives the second mounting bracket to rotate synchronously. Both the first and second mounting brackets have protrusions with arc-shaped edges. When the first and second mounting brackets are tightly fitted together, the protrusions on the first and second mounting brackets engage with each other. Both the first and second mounting brackets have at least three blades, and the blades on both are symmetrically arranged along the axis of the main shaft. The auxiliary control device includes a first linear drive assembly, which is mounted on the housing and used to control the sliding of the second mounting bracket along the axis of the main shaft.

[0007] Preferably, the auxiliary control device further includes a buffer assembly, which includes a fixed ear, a first mounting ring, and a first elastic element; the fixed ear is disposed on a second mounting bracket; the first mounting ring is movably disposed within the housing and is connected to the drive end of the first linear drive assembly; the two ends of the first elastic element are respectively connected to the fixed ear and the first mounting ring.

[0008] Preferably, the blade has a mounting plate at its bottom, and the mounting plates of the blades respectively mounted on the first mounting frame and the second mounting frame are rotatably connected to the first mounting frame and the second mounting frame respectively; the mounting plate has a fixed shaft at its bottom; and the housing is also provided with an adjustment device for controlling the rotation of the fixed shaft.

[0009] Preferably, the adjustment device includes a first adjustment component and a second linear drive component; the first adjustment component includes a movable seat, and multiple movable seats are provided, each corresponding to a blade, and the multiple movable seats are slidably mounted on the first mounting frame and the second mounting frame respectively; a guide groove is provided on the movable seat, and the fixed shaft slides in cooperation with the guide groove; the second linear drive component is disposed on the housing and is used to control the sliding of the movable seats.

[0010] Preferably, the auxiliary control device further includes a control component, which includes a second elastic member; the two ends of the second elastic member are respectively connected to the first mounting frame and the movable seat mounted on the first mounting frame; the movable seat mounted on the second mounting frame is provided with an extension block, and the first mounting frame is provided with a notch that cooperates with the extension block.

[0011] Preferably, the rotary drive assembly includes a first sleeve, a rotary driver, a second sleeve, and a transmission belt; the first sleeve is sleeved on the main shaft; the rotary driver is mounted on the housing; the second sleeve is sleeved on the drive end of the rotary driver; and the two ends of the transmission belt are respectively sleeved on the first sleeve and the second sleeve.

[0012] Preferably, the first linear drive assembly includes a first push ring, an extension rod, a first connecting rod, and a first linear actuator; the first push ring is connected to a second mounting bracket. The inner ring of the first push ring has a convex ring; the first mounting ring has a mating groove that slides with the convex ring; the extension rod is mounted on the first push ring; the end of the extension rod away from the first push ring is connected to the first connecting rod; the first linear actuator is mounted on a housing, and the drive end of the first linear actuator is connected to the first connecting rod.

[0013] Preferably, the second linear drive assembly includes a connecting rod, a second mounting ring, a second push ring, a second linear driver, and a second connecting rod; both ends of the connecting rod are respectively connected to a movable seat and a second mounting ring mounted on a second mounting bracket; the second push ring is rotatably connected to the second mounting ring; the second linear driver is mounted on a housing; both ends of the second connecting rod are respectively connected to the drive end of the second linear driver and the second push ring, and the second connecting rod is slidably engaged with the mounting grille.

[0014] Preferably, connecting flanges are installed at both ends of the housing.

[0015] An installation method for an axial flow fan in an intelligent substation includes the following steps: S1, adjusting the position of the axial flow fan; S2, connecting the connecting flange to the air duct or connecting plate with bolts to complete the installation of the axial flow fan.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention achieves the function of reducing the noise of axial flow fans during operation through the housing, support device and auxiliary control device. By cooperating the first mounting bracket and the second mounting bracket, the noise reduction effect is achieved, which solves the problem that traditional axial flow fans cannot control noise during operation.

[0018] 2. The present invention achieves the function of buffering the impact between the first mounting bracket and the second mounting bracket by means of the fixing ear, the first mounting ring and the first elastic element, thereby avoiding the problem of damage to the parts caused by severe impact between the first mounting bracket and the second mounting bracket.

[0019] 3. This invention achieves the function of adjusting the blade angle through the mounting plate, fixed shaft and adjustment device, thereby controlling the air volume. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an axial flow fan for an intelligent substation.

[0021] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the casing of an axial flow fan in an intelligent substation.

[0022] Figure 3 This is a three-dimensional schematic diagram of an axial flow fan in an intelligent substation after the first mounting bracket and the second mounting bracket are connected.

[0023] Figure 4 This is a three-dimensional schematic diagram of an axial flow fan in an intelligent substation when the first mounting bracket is not connected to the second mounting bracket.

[0024] Figure 5 This is a three-dimensional schematic diagram of the second mounting bracket, auxiliary control device, and regulating device in an axial flow fan of an intelligent substation.

[0025] Figure 6 This is a three-dimensional exploded view of the blades and control components in an axial flow fan of an intelligent substation.

[0026] Figure 7 This is a three-dimensional schematic diagram of the casing, mounting grille, main shaft, and rotary drive assembly of an axial flow fan in an intelligent substation.

[0027] Figure 8 This is a three-dimensional schematic diagram of the first regulating component and the second linear drive component in an axial flow fan of an intelligent substation.

[0028] Figure 9 This is a front view of an axial flow fan in an intelligent substation with the first mounting bracket and the second mounting bracket separated.

[0029] The labels in the diagram are as follows: 1-House; 11-Mounting grille; 12-Main shaft; 121-Slide groove; 13-Rotary drive assembly; 131-First sleeve; 132-Rotary actuator; 133-Second sleeve; 134-Drive belt; 14-Connecting flange; 2-Support device; 21-First mounting bracket; 211-Protrusion; 212-Arc edge; 22-Second mounting bracket; 23-Blade; 231-Mounting plate; 232-Fixed shaft; 3-Auxiliary control device; 31-First linear drive assembly; 311-First push ring; 3111-Protruding ring; 312-Matching. 313 - Groove; 314 - First connecting rod; 315 - First linear actuator; 32 - Buffer assembly; 321 - Fixed ear; 322 - First mounting ring; 323 - First elastic element; 4 - Adjusting device; 41 - First adjusting assembly; 411 - Movable seat; 412 - Guide groove; 42 - Second linear drive assembly; 421 - Connecting rod; 422 - Second mounting ring; 423 - Second push ring; 424 - Second linear actuator; 425 - Second connecting rod; 43 - Control assembly; 431 - Second elastic element; 432 - Notch; 433 - Extension block. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1-3 and Figure 5 A smart substation axial flow fan includes a housing 1, with mounting grilles 11 at both ends. A main shaft 12 is housed inside the housing 1 and rotatably connected to the mounting grilles 11. The housing 1 also includes a rotary drive assembly 13 for driving the main shaft 12. The axial flow fan further includes a support device 2 and an auxiliary control device 3. The support device 2 includes a first mounting bracket 21 and a second mounting bracket 22. The first mounting bracket 21 and the second mounting bracket 22 are sleeved on the main shaft 12, and the second mounting bracket 22 can slide relative to the main shaft 12 along its axial direction. When the main shaft 12 rotates, it drives the second mounting bracket 22 to rotate synchronously. The first mounting bracket 21 and the second mounting bracket 22 are... Both mounting brackets 22 are provided with protrusions 211, and the protrusions 211 are provided with arc-shaped edges 212. When the first mounting bracket 21 and the second mounting bracket 22 are tightly engaged, the protrusions 211 on the first mounting bracket 21 and the protrusions 211 on the second mounting bracket 22 are engaged. Both the first mounting bracket 21 and the second mounting bracket 22 are provided with at least three blades 23, and the blades 23 on the first mounting bracket 21 and the second mounting bracket 22 are symmetrically arranged along the axis of the main shaft 12. The auxiliary control device 3 includes a first linear drive assembly 31, which is disposed on the housing 1 and is used to control the second mounting bracket 22 to slide along the axis of the main shaft 12.

[0032] The present invention achieves the function of reducing the noise of the axial flow fan during operation through the housing 1, the support device 2 and the auxiliary control device 3. By cooperating the first mounting bracket 21 and the second mounting bracket 22, the noise reduction effect is achieved significantly, solving the problem that the noise of the traditional axial flow fan cannot be controlled during operation. The main shaft 12 has a sliding groove 121, and the inner ring of the second mounting bracket 22 has a sliding key that slides in cooperation with the sliding groove 121. The main shaft 12 drives the second mounting bracket 22 to rotate through the key and the sliding groove 121. The first mounting bracket 21 has six blades 23, and the second mounting bracket 22 has three blades 23. The rotary drive assembly 13 and the first linear drive assembly 31 are electrically connected to the controller. During operation, the substation generates heat. When the substation is running at high power, it generates a lot of heat. The controller sends a signal to the rotary drive assembly 13, which drives the main shaft 12 to rotate. The main shaft 12 drives the second mounting bracket 22 to rotate. The second mounting bracket 22 drives the blades 23 mounted on it to rotate at high speed, generating axial airflow to carry away the heat. At this time, the second mounting bracket 22 has three blades 23, which generates more noise and stronger wind. When the substation operates at reduced power, less heat is generated. The controller sends a signal to the first linear drive assembly 31. After receiving the signal, the first linear drive assembly 31 controls the second mounting bracket 22 to move toward the first mounting bracket 21. When the first mounting bracket 21 and the second mounting bracket 22 are engaged, their protrusions 211 interlock and engage. The second mounting bracket 22 drives the first mounting bracket 21 to rotate synchronously. At this time, the nine blades 23 rotate synchronously. Compared with three fans, the airflow is reduced and more uniform and gentle, while the noise is significantly reduced.

[0033] Reference Figures 3-5 The auxiliary control device 3 also includes a buffer assembly 32, which includes a fixed ear 321, a first mounting ring 322, and a first elastic element 323. The fixed ear 321 is disposed on the second mounting bracket 22. The first mounting ring 322 is movably disposed in the housing 1 and is connected to the drive end of the first linear drive assembly 31. The two ends of the first elastic element 323 are respectively connected to the fixed ear 321 and the first mounting ring 322.

[0034] This invention utilizes a fixed lug 321, a first mounting ring 322, and a first elastic element 323 to buffer the impact between the first mounting bracket 21 and the second mounting bracket 22, thus preventing damage to components caused by severe impacts between them. When the substation operates at high power, it generates significant heat. The controller sends a signal to the rotary drive assembly 13, which drives the main shaft 12 to rotate. The main shaft 12 then drives the second mounting bracket 22 to rotate, causing the blades 23 mounted on it to rotate at high speed, generating axial airflow that carries away heat. At this time, the second mounting bracket 22 has three blades 23, resulting in considerable noise and strong airflow. When the substation's operating power decreases, less heat is generated. The controller sends a signal to the first linear drive assembly 31. Upon receiving the signal, the first linear drive assembly 31 controls the second mounting bracket 22 to move towards the first mounting bracket 21. When the first mounting bracket 21 contacts the second mounting bracket 22, the protrusion 211 on the first mounting bracket 21 will first contact the protrusion 211 on the second mounting bracket 22, and their curved edges 212 will mate. When the second mounting bracket 22 rotates slowly, it needs a period of acceleration until it rotates synchronously with the first mounting bracket 21. Therefore, when the first mounting bracket 21 contacts the second mounting bracket 22 first, the second mounting bracket... 22. The resistance is relatively large. When the arc-shaped edge 212 of the first mounting frame 21 contacts the arc-shaped edge 212 of the second mounting frame 22, the second mounting frame 22 pushes the first mounting frame 21 to rotate. Due to the reaction force of the first mounting frame 21, the first elastic element 323 contracts. As the rotation speed of the first mounting frame 21 increases, the reaction force decreases. When the first mounting frame 21 and the second mounting frame 22 are engaged, their protrusions 211 are interlocked. The second mounting frame 22 drives the first mounting frame 21 to rotate synchronously. At this time, the nine blades 23 rotate synchronously. Compared with three fans, the wind force is reduced and more uniform and gentle, and the noise is greatly reduced.

[0035] Reference Figure 2 and Figure 6 The blade 23 has a mounting plate 231 at its bottom. The mounting plate 231 of the blade 23, which is respectively mounted on the first mounting frame 21 and the second mounting frame 22, is rotatably connected to the first mounting frame 21 and the second mounting frame 22. The mounting plate 231 has a fixed shaft 232 at its bottom. The housing 1 also has an adjustment device 4 for controlling the rotation of the fixed shaft 232.

[0036] This invention achieves the function of adjusting the angle of the blades 23 through the mounting plate 231, the fixed shaft 232, and the adjusting device 4, thereby controlling the airflow. The adjusting device 4 is electrically connected to the controller. When the substation operates at high power, it generates a large amount of heat. The controller sends a signal to the rotary drive assembly 13, which drives the main shaft 12 to rotate. The main shaft 12 drives the second mounting bracket 22 to rotate, which in turn drives the blades 23 mounted on it to rotate at high speed, generating axial airflow to carry away the heat. At this time, the second mounting bracket 22 has three blades 23, which generates significant noise and airflow. When the airflow from the axial fan is insufficient, the substation's heat dissipation efficiency is inadequate. The controller sends a signal to the adjusting device 4, which, upon receiving the signal, controls the fixed shaft 232 to rotate. The fixed shaft 232 drives the mounting plate 231 and the blades 23 to rotate, thereby controlling the angle of the blades 23 and increasing the airflow.

[0037] Reference Figure 5 and Figure 6 The adjustment device 4 includes a first adjustment component 41 and a second linear drive component 42. The first adjustment component 41 includes a movable seat 411, which is provided in multiple ways and corresponds one-to-one with the blade 23. The multiple movable seats 411 are slidably mounted on the first mounting bracket 21 and the second mounting bracket 22, respectively. A guide groove 412 is provided on the movable seat 411, and the fixed shaft 232 is slidably engaged with the guide groove 412. The second linear drive component 42 is provided on the housing 1 and is used to control the sliding of the movable seat 411.

[0038] This invention achieves the function of controlling the rotation of the fixed shaft 232 through the first head adjustment component and the second linear drive component 42. The second linear drive component 42 is electrically connected to the controller. When the substation operates at high power, it generates a lot of heat. The controller sends a signal to the rotary drive component 13, which drives the main shaft 12 to rotate. The main shaft 12 drives the second mounting bracket 22 to rotate, and the second mounting bracket 22 drives the blades 23 mounted on it to rotate at high speed, generating axial airflow to carry away heat. At this time, the second mounting bracket 22 has three blades 23, which generates a lot of noise and wind force. When the air volume blown by the axial flow fan is insufficient, the heat dissipation efficiency of the substation is insufficient. The controller sends a signal to the second linear drive component 42. After receiving the signal, the second linear drive component 42 drives the movable seat 411 to slide. The movable seat 411 pushes the fixed shaft 232 to move through the guide groove 412. As the fixed shaft 232 moves, it slides along the guide groove 412 and drives the mounting plate 231 to rotate. The mounting plate 231 drives the blades 23 to rotate, thereby controlling the angle of the blades 23 and increasing the wind force.

[0039] Reference Figure 5 and Figure 6The auxiliary control device 3 also includes a control component 43, which includes a second elastic member 431. The two ends of the second elastic member 431 are respectively connected to the first mounting frame 21 and the movable seat 411 mounted on the first mounting frame 21. An extension block 433 is provided on the movable seat 411 mounted on the second mounting frame 22, and a notch 432 that cooperates with the extension block 433 is provided on the first mounting frame 21.

[0040] This invention utilizes a second elastic element 431, a notch 432, and an extension block 433 to control the movement of the movable seat 411 within the first mounting frame 21 when it mates with the second mounting frame 22. This ensures that the angle of the blades 23 on the first mounting frame 21 is the same as the angle of the blades 23 on the second mounting frame 22. When the first mounting frame 21 is not mates with the second mounting frame 22, the movable seat 411 is pushed by the elastic force of the second elastic element 431, causing the blades 23 to rotate. At this time, the blades 23 are parallel to the axis of the main shaft 12, thus preventing the blades 23 on the first mounting frame 21 from obstructing the airflow generated by the rotation of the blades 23 on the second mounting frame 22 when they are not rotating. When the substation's operating power is reduced, less heat is generated. The controller sends a signal to the first linear drive assembly 31. Upon receiving the signal, the first linear drive assembly 31 controls the second mounting bracket 22 to move toward the first mounting bracket 21. The second mounting bracket 22 drives the movable seat 411 mounted on it to move. As the second mounting bracket 22 moves, it passes through the notch 432 on the first mounting bracket 21. When the movable seat 411 on the second mounting bracket 22 contacts the movable seat 411 on the first mounting bracket, it overcomes the elastic force of the second elastic element 431 and pushes the movable seat 411 on the first mounting bracket 21, thereby controlling the blades 23 to rotate. When the first mounting bracket 21 and the second mounting bracket 22 are engaged, their protrusions 211 interlock and engage. The second mounting bracket 22 drives the first mounting bracket 21 to rotate synchronously, and the angle of the blades 23 on the first mounting bracket 21 is the same as the angle of the blades 23 on the second mounting bracket 22. At this time, all nine blades 23 rotate synchronously. Compared to three fans, the airflow is reduced, more uniform and gentle, and the noise is significantly reduced.

[0041] Reference Figure 2 and Figure 7 The rotary drive assembly 13 includes a first sleeve 131, a rotary driver 132, a second sleeve 133, and a transmission belt 134; the first sleeve 131 is sleeved on the main shaft 12; the rotary driver 132 is mounted on the housing 1; the second sleeve 133 is sleeved on the drive end of the rotary driver 132; and the two ends of the transmission belt 134 are respectively sleeved on the first sleeve 131 and the second sleeve 133.

[0042] This invention achieves the function of driving the main shaft 12 to rotate through a first sleeve 131, a rotary driver 132, a second sleeve 133, and a transmission belt 134. The rotary driver 132 is preferably a brushless DC motor, which is electrically connected to the controller. The inner ring of the first sleeve 131 is provided with a sliding key, which cooperates with the sliding groove 121 on the main shaft 12. During operation, the substation generates heat, especially during high-power operation. The controller sends a signal to the rotary driver 132, which then drives the second sleeve 133 to rotate. The second sleeve 133 drives the first sleeve 131 to rotate via the transmission belt 134. The first sleeve 131 drives the main shaft 12 to rotate, which in turn drives the second mounting bracket 22 to rotate. The second mounting bracket 22 drives the blades 23 mounted on it to rotate at high speed, generating axial airflow to carry away heat. At this time, the second mounting bracket 22 has three blades 23, resulting in significant noise and strong airflow. When the substation operates at reduced power, less heat is generated. The controller sends a signal to the first linear drive assembly 31. After receiving the signal, the first linear drive assembly 31 controls the second mounting bracket 22 to move toward the first mounting bracket 21. When the first mounting bracket 21 and the second mounting bracket 22 are engaged, their protrusions 211 interlock and engage. The second mounting bracket 22 drives the first mounting bracket 21 to rotate synchronously. At this time, the nine blades 23 rotate synchronously. Compared with three fans, the airflow is reduced and more uniform and gentle, while the noise is significantly reduced.

[0043] Reference Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 9 The first linear drive assembly 31 includes a first push ring 311, an extension rod 313, a first connecting rod 314, and a first linear driver 315. The first push ring 311 is connected to the second mounting bracket 22. The inner ring of the first push ring 311 is provided with a convex ring 3111. The first mounting ring 322 is provided with a mating groove 312 that slides with the convex ring 3111. The extension rod 313 is mounted on the first push ring 311. The end of the extension rod 313 away from the first push ring 311 is connected to the first connecting rod 314. The first linear driver 315 is mounted on the housing 1, and the driving end of the first linear driver 315 is connected to the first connecting rod 314.

[0044] The present invention realizes the function of driving the first mounting ring 322 to move through the first push ring 311, the docking groove 312, the extension rod 313, the first connecting rod 314 and the first linear driver 315, thereby achieving the effect of controlling the second mounting bracket 22 to slide along the main shaft 12. The first linear actuator 315 is preferably an electric push rod, which is electrically connected to the controller. When the substation's operating power is reduced, less heat is generated. The controller sends a signal to the first linear actuator 315. Upon receiving the signal, the first linear actuator 315 pushes the first connecting rod 314, which in turn pulls the first push ring 311 through the first connecting rod 314 and the extension rod 313. The first push ring 311 pushes the first mounting ring 322 to move. Through the rotational connection between the first push ring 311 and the first mounting ring 322, the first linear drive assembly 31 can control the movement of the second mounting bracket 22 during the rotation of the main shaft 12, greatly improving the ease of adjustment and practicality. When the first mounting bracket 21 and the second mounting bracket 22 are engaged, their protrusions 211 interlock and engage. The second mounting bracket 22 drives the first mounting bracket 21 to rotate synchronously. At this time, the nine blades 23 rotate synchronously. Compared to three fans, the airflow is reduced and more uniform and gentle, while the noise is significantly reduced.

[0045] Reference Figure 2 , Figure 5 and Figure 8 The second linear drive assembly 42 includes a connecting rod 421, a second mounting ring 422, a second push ring 423, a second linear actuator 424, and a second connecting rod 425. The two ends of the connecting rod 421 are respectively connected to the movable seat 411 and the second mounting ring 422 mounted on the second mounting bracket 22. The second push ring 423 is rotatably connected to the second mounting ring 422. The second linear actuator 424 is mounted on the housing 1. The two ends of the second connecting rod 425 are respectively connected to the drive end of the second linear actuator 424 and the second push ring 423, and the second connecting rod 425 is slidably engaged with the mounting grille 11.

[0046] This invention achieves the function of driving the movable seat 411 to move through the connecting rod 421, the second mounting ring 422, the second push ring 423, the second linear actuator 424, and the second connecting rod 425, thereby controlling the rotation of the blades 23. The second linear actuator 424 is preferably an electric push rod, which is electrically connected to the controller. When the substation operates at high power, it generates a large amount of heat. The controller sends a signal to the rotary drive assembly 13, which drives the main shaft 12 to rotate. The main shaft 12 drives the second mounting frame 22 to rotate, which in turn drives the blades 23 mounted on it to rotate at high speed, generating axial airflow that carries away heat. At this time, the second mounting frame 22 has three blades 23, resulting in significant noise and wind force. When the air volume blown by the axial flow fan is insufficient, the heat dissipation efficiency of the substation is insufficient. The controller sends a signal to the second linear actuator 424. After receiving the signal, the second linear actuator 424 drives the second connecting rod 425 to move. The second connecting rod 425 pulls the second push ring 423. The second push ring drives the second mounting ring 422 to move. The first mounting ring 322 pulls the movable seat 411 to move through the connecting rod 421. The movable seat 411 pushes the fixed shaft 232 to move through the guide groove 412. As the fixed shaft 232 moves, it slides along the guide groove 412 and drives the mounting plate 231 to rotate. The mounting plate 231 drives the blades 23 to rotate, thereby controlling the angle of the blades 23 and increasing the wind force.

[0047] Reference Figure 1 and Figure 2 Both ends of the housing 1 are equipped with connecting flanges 14.

[0048] This invention facilitates the installation of axial flow fans by using the connecting flange 14. During installation, the operator connects the connecting flange 14 to the air duct using bolts. The connecting flange 14 improves installation stability, ensures that the axis of the air duct is collinear with the axis of the axial flow fan, thereby reducing airflow resistance and ensuring smooth airflow.

[0049] Reference Figures 1-3 and Figure 5 A method for installing an axial flow fan in an intelligent substation includes the following steps: S1, adjusting the position of the axial flow fan; S2, connecting the connecting flange 14 to the air duct or connecting plate with bolts to complete the installation of the axial flow fan.

[0050] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. An intelligent substation axial flow fan includes a housing (1), with mounting grilles (11) provided at both ends of the housing (1), a main shaft (12) provided inside the housing (1), the main shaft (12) being rotatably connected to the mounting grilles (11), and a rotary drive assembly (13) for driving the main shaft (12) to rotate on the housing (1). Its features are, The axial flow fan also includes a support device (2) and an auxiliary control device (3); The support device (2) includes a first mounting bracket (21) and a second mounting bracket (22); The first mounting bracket (21) and the second mounting bracket (22) are sleeved on the main shaft (12), and the second mounting bracket (22) can slide relative to the main shaft (12) along its axial direction. When the main shaft (12) rotates, it will drive the second mounting bracket (22) to rotate synchronously. Both the first mounting bracket (21) and the second mounting bracket (22) are provided with protrusions (211), and the protrusions (211) are provided with arc-shaped edges (212). When the first mounting bracket (21) and the second mounting bracket (22) are tightly fitted together, the protrusions (211) on the first mounting bracket (21) and the protrusions (211) on the second mounting bracket (22) are engaged. When the arc-shaped edge 212 of the first mounting bracket 21 contacts the arc-shaped edge 212 of the second mounting bracket 22, the second mounting bracket 22 pushes the first mounting bracket 21 to rotate. The first mounting bracket (21) and the second mounting bracket (22) are each provided with at least three blades (23), and the blades (23) on the first mounting bracket (21) and the second mounting bracket (22) are symmetrically arranged along the axis center of the main shaft (12); The auxiliary control device (3) includes a first linear drive assembly (31) which is disposed on the housing (1) and is used to control the second mounting bracket (22) to slide along the axis of the main shaft (12).

2. The intelligent substation axial flow fan according to claim 1, characterized in that, The auxiliary control device (3) also includes a buffer assembly (32), which includes a fixing lug (321), a first mounting ring (322), and a first elastic element (323); The fixing ear (321) is mounted on the second mounting bracket (22); The first mounting ring (322) is movably disposed inside the housing (1) and is connected to the drive end of the first linear drive assembly (31); The two ends of the first elastic member (323) are connected to the fixing ear (321) and the first mounting ring (322), respectively.

3. The intelligent substation axial flow fan according to claim 1, characterized in that, The blade (23) has a mounting plate (231) at its bottom. The mounting plate (231) of the blade (23) is respectively mounted on the first mounting frame (21) and the second mounting frame (22) and is rotatably connected to the first mounting frame (21) and the second mounting frame (22). A fixed shaft (232) is provided at the bottom of the mounting plate (231); The housing (1) is also equipped with an adjustment device (4) for controlling the rotation of the fixed shaft (232).

4. The intelligent substation axial flow fan according to claim 3, characterized in that, The adjustment device (4) includes a first adjustment component (41) and a second linear drive component (42); The first adjustment component (41) includes a movable seat (411), which is provided in multiple ways and corresponds one-to-one with the blade (23). The multiple movable seats (411) are slidably mounted on the first mounting frame (21) and the second mounting frame (22). The movable seat (411) is provided with a guide groove (412), and the fixed shaft (232) is slidably engaged with the guide groove (412); The second linear drive assembly (42) is disposed on the housing (1) and is used to control the sliding of the movable seat (411).

5. The intelligent substation axial flow fan according to claim 3, characterized in that, The auxiliary control device (3) also includes a control component (43), which includes a second elastic element (431); The two ends of the second elastic member (431) are respectively connected to the first mounting bracket (21) and the movable seat (411) mounted on the first mounting bracket (21); An extension block (433) is provided on the movable seat (411) mounted on the second mounting bracket (22), and a notch (432) is provided on the first mounting bracket (21) to cooperate with the extension block (433).

6. The intelligent substation axial flow fan according to claim 1, characterized in that, The rotary drive assembly (13) includes a first sleeve (131), a rotary driver (132), a second sleeve (133), and a drive belt (134); The first sleeve (131) is fitted onto the main shaft (12); The rotary actuator (132) is mounted on the housing (1); The second sleeve (133) is fitted onto the drive end of the rotary actuator (132); The two ends of the transmission belt (134) are respectively fitted onto the first sleeve (131) and the second sleeve (133).

7. The intelligent substation axial flow fan according to claim 2, characterized in that, The first linear drive assembly (31) includes a first push ring (311), an extension rod (313), a first connecting rod (314), and a first linear driver (315); The first push ring (311) is connected to the second mounting bracket (22); the inner ring of the first push ring (311) is provided with a convex ring (3111); The first mounting ring (322) has a mating groove (312) that slides with the convex ring (3111); An extension rod (313) is installed on the first push ring (311); The end of the extension rod (313) away from the first push ring (311) is connected to the first connecting rod (314); The first linear actuator (315) is mounted on the housing (1), and the drive end of the first linear actuator (315) is connected to the first connecting rod (314) for transmission.

8. The intelligent substation axial flow fan according to claim 4, characterized in that, The second linear drive assembly (42) includes a connecting rod (421), a second mounting ring (422), a second push ring (423), a second linear driver (424), and a second connecting rod (425); The two ends of the connecting rod (421) are respectively connected to the movable seat (411) and the second mounting ring (422) mounted on the second mounting bracket (22); The second push ring (423) is rotatably connected to the second mounting ring (422); The second linear actuator (424) is mounted on the housing (1); The two ends of the second link (425) are respectively connected to the drive end of the second linear actuator (424) and the second push ring (423), and the second link (425) slides in cooperation with the mounting grid (11).

9. The intelligent substation axial flow fan according to claim 1, characterized in that, Both ends of the housing (1) are equipped with connecting flanges (14).

10. The installation method of an axial flow fan in an intelligent substation according to claim 9, characterized in that, Includes the following steps: S1. Adjust the position of the axial flow fan; S2. Connect the connecting flange (14) to the air duct or connecting plate with bolts to complete the installation of the axial flow fan.

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