A static balancing device for an aluminum alloy fan

Abstract

The present invention belongs to the technical field of fan production, and discloses an aluminum alloy fan static balancing device, including a fan body, wherein two fixed shells are provided on the outer side of the fan body, and a magnetic block is provided at an equal angle between the two fixed shells, and the two fixed shells are adsorbed and connected by the magnetic block, and the fan body is located inside the two fixed shells. The present invention realizes the movement of the piston plate through the pressure of the gas, and uses the magnetic force of the magnetic ring to complete the contactless addition of weights. No manual assistance is required in the whole process. The magnetic ring can be automatically installed by controlling the amount of gas introduced, and there is no contact during the installation process, so that automatic addition at noon can be achieved, avoiding the problem that when adding weights manually in traditional operations, the installation position of the weights is difficult to determine, and a certain external force will be generated to affect the fan. Not only does it not require manual assistance, but it also significantly improves the accuracy of static balance calibration.

Description

Technical Field

[0001] The invention belongs to the technical field of fan production, and in particular relates to a static balancing device for an aluminum alloy fan. Background Art

[0002] Ceiling fans usually have three blades, table fans usually have five blades, and the cross-section of common fan blades is generally curved. Fans are one of the more commonly used parts of motors. For small and medium-sized motors, the motors are mainly equipped with external fans, that is, the motor fans are outside the casing, and the mechanical safety and temperature rise control requirements of the motor operation are guaranteed by the wind shield; for large-sized motors, according to the characteristics of the motor ventilation structure, internal fans will be installed on the rotor, that is, the fans are inside the inner cavity of the motor. Most motor fans are thin plate parts, so they should be statically balanced before installation, so the static balance parameters of the fan itself are very important.

[0003] In order to reduce unnecessary vibration of the fan when in use, static balance calibration is carried out at the manufacturer before production. The common static balance calibration method is to connect the fan to the drive shaft and drive the fan to rotate freely by rotating the drive shaft. During the test, a weight is installed on one side of the fan blade, and the fan blade is driven to the lowest point by gravity. The fan blade is then rotated so that it is parallel to the point where the weight is first installed. A weight of the same mass is then installed. The static balance test is performed by observing whether the fan is still. However, in the actual calibration process, the weight needs to be installed manually. Manual installation must be carried out with caution to ensure that the fan blades are not interfered with. At the same time, it is difficult to accurately control the installation position, which makes the calibration process more difficult.

[0004] During the static balance calibration process of the fan, when a weight is first installed at the fan blades, the rotation of the fan is caused by the gravity of the weight. When the fan blades need to be rotated to a point parallel to the first installation of the weight, external power is needed to assist the fan rotation. During the static balance adjustment process, manual assistance is generally used. However, the rotation speed and rotation force are not controllable during manual assisted rotation. It is often the case that the rotation force is too small, resulting in the fan blades being unable to reach the predetermined position, or the rotation force is too large, causing the fan blades to exceed the predetermined device, affecting the static balance calibration process. Summary of the invention

[0005] The object of the present invention is to provide a static balancing device for an aluminum alloy fan to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aluminum alloy fan static balancing device, comprising a fan body, two fixed shells are provided on the outer side of the fan body, magnetic blocks are provided at equal angles between the two fixed shells, the two fixed shells are connected by adsorption of the magnetic blocks, the fan body is located inside the two fixed shells, leveling components are installed inside the magnetic blocks on the left and right sides, and the installation directions of the two leveling components are opposite, a main shaft is provided in the middle of the fan body, a base is provided at the bottom end of the fixed shell, a frame is fixedly installed on both ends of the base, and convex strips are welded and fixed at equal angles on the inner side of the fan body.

[0007] As a further technical solution of the present invention, a light-transmitting groove is provided at the bottom end of the outer side surface of the fixed shell on one side, and a photoelectric switch is fixedly installed at the top end of the base, and the photoelectric switch and the light-transmitting groove are on the same central axis.

[0008] Before using the device, the device can be placed on a horizontal ground first, and leveling operations can be performed to make the device tend to a horizontal state, and the fan body can be sleeved on the outer side of the main shaft, and the two fixed shells can be relatively close to each other and adsorbed to each other to install the fan body between the two fixed shells, and the relative position of the fan body can be rotated at the same time to ensure that the blades on the outer side of the fan body correspond to the magnetic block, and the external air supply device is connected to the leveling component, and the photoelectric switch is turned on to emit infrared rays for use.

[0009] As a further technical solution of the present invention, the leveling assembly includes an air tank, the magnetic blocks located on the left and right sides are provided with through grooves inside and are connected to the air tank through the through grooves, an air inlet pipe is provided at the left end of the air tank, a piston plate is movably sleeved inside the air tank, an extension rod located inside the air tank is fixedly installed on the right end of the piston plate, and the other end of the extension rod passes through the right end of the air tank and is fixedly installed with a mounting block.

[0010] As a further technical solution of the present invention, a magnetic ring is movably mounted on the outer side of the mounting block, a stopper is fixedly mounted on one end of the magnetic ring, and the stopper corresponds to the light-transmitting groove and has the same cross-sectional area as the light-transmitting groove.

[0011] As a further technical solution of the present invention, a return spring located inside the gas storage tank is fixedly connected between the left end of the inner cavity of the gas storage tank and the left end of the piston plate, and an exhaust pipe located on the left side of the piston plate is opened below the outer side of the gas storage tank.

[0012] As a further technical solution of the present invention, one-way valves are installed inside the intake pipe and the exhaust pipe, and the directions of the one-way valves are respectively inwardly conducting and outwardly blocking and outwardly conducting and inwardly blocking.

[0013] During the static balance adjustment process, the fan body can be rotated to make the fan blades on the outer side of the fan body correspond to the leftmost leveling component to complete the preparation process. At this time, the external air supply device is turned on to transport the external gas to the inside of the air tank through the intake pipe, and pressure is applied to one end of the piston plate. At this time, the piston plate can be driven to move to the right. At this time, the reset spring is deformed by the tension. At the same time, when the piston plate moves to the right, it will drive the extension rod and the mounting block to move to the right, thereby driving the magnetic ring to move toward the blades on the outer side of the fan body. Since the blades made of alloy have a certain magnetism, when the magnetic ring is close enough, the magnetic ring and the blade are adsorbed. At this time, the magnetic ring can be adsorbed on the outer side of the blade, and the mass of a single blade increases and begins to move circumferentially due to gravity and moves to the lowest point. At this time, the entire fan body can be driven to rotate to complete the addition of weight.

[0014] By utilizing the flow of gas to convert it into gas pressure and using the gas pressure to achieve the movement of the piston plate, and utilizing the magnetic force of the magnetic ring to complete contactless weight addition, no manual assistance is required in the entire process. The magnetic ring can be automatically installed by controlling the amount of gas introduced, and there is no contact during the installation process, so automatic addition at noon can be achieved. This avoids the problem of manual addition of weights in traditional operations, where the installation position of the weights is difficult to determine, and a certain external force will be generated to affect the fan. Not only does it not require manual assistance, but it also significantly improves the accuracy of static balance calibration.

[0015] When the fan blade with the magnetic ring installed moves to the lowest point of the equipment due to gravity, the block at one end of the magnetic ring just moves to the top of the light-transmitting groove. At this time, the light-transmitting groove is blocked by the block, and the infrared light generated by the photoelectric switch is blocked. At this time, the photoelectric switch sends a control signal to control the valve inside the exhaust pipe to open. At this time, the air inside the gas tank can be discharged from the exhaust pipe, and the reset spring recovers its deformation to drive the piston plate to automatically reset, and the output air acts on the blades on the left side of the fan to promote the fan to rotate, and the output air volume can just make the fan rotate ninety degrees, that is, the fan blade with the magnetic ring moves to a position on the same horizontal line as the output air. At this time, the magnetic ring is fixed to the fan blade on the other side through the leveling component again. If the fan body is stationary, it means it is in a static balance state, and vice versa. Repeat this step until the fan body is in a static balance state to complete the calibration.

[0016] By utilizing the gravity of the magnetic ring, the switch is triggered when the device moves to the lowest point, and the flow of gas is used to use the output gas as power to drive the rotation of the fan body. The rotation angle of the fan body is proportional to the output air. The rotation angle of the fan body can be controlled by simply controlling the output air volume, avoiding the problem that traditional devices require manual assistance to rotate when the blades move to the lowest point and it is difficult to control the rotation force. The entire rotation process is controllable and relatively precise. The power source for the rotation of the fan body comes from the air that adds weight to the blades, and the air is reused, which greatly improves the work efficiency and accuracy during static balance calibration.

[0017] As a further technical solution of the present invention, limiting grooves are provided at equal angles on the outer side surface of the main shaft, and the main shaft is movably connected with the convex strips inside the fan body through the limiting grooves. Bearings are provided on the left and right sides of the outer side surface of the main shaft, and the inner side surface of the bearing is movably connected with the limiting grooves. The outer side surface of the bearing is adsorbed and connected to the fixed shell, and the main shaft and the fan body can rotate relative to the fixed shell.

[0018] Before the device is used, the limit groove and the convex strip are clamped together to ensure that the main shaft will not deviate when driving the fan body to rotate. At the same time, the bearing is used to ensure that the fixed shell will not rotate with the fan body. At the same time, the main shaft and the fan body can effectively reduce the resistance during rotation through the bearing when rotating, thereby avoiding interference with the static balance adjustment of the fan body caused by the resistance.

[0019] As a further technical solution of the present invention, a groove is provided at the top of the frame, and driving rollers are fixedly installed on the left and right sides of the main shaft, the driving roller is movably connected to the groove, and driven rollers are movably installed on the left and right sides of the inner side surface of the groove, and the left and right sides of the outer side surface of the driving roller are in contact with the outer side surface of the driven roller.

[0020] When the device is operated, the active roller and the groove can be snapped into place. At this time, the fixed shell is located exactly at the center of the base, and the photoelectric switch and the light-transmitting groove correspond to each other. When the active roller rotates, the two driven rollers located inside the groove can rotate along with it. At this time, the points of contact with the active roller are the two ends of the outer sides of the two driven rollers. The two driven rollers can provide support to the active roller and make the active roller rotate in place to assist the fan body in static balance adjustment.

[0021] By bringing the outer side surface of the active roller into contact with the outer side surfaces of the two driven rollers, the contact area of ​​the active roller is reduced, the rolling between the axis and the surface in the traditional device is avoided, and it is converted into a relative rotation between the two axes, which further reduces the friction and avoids interference with the static balance calibration of the fan body. In addition, the active roller can be directly supported to avoid the jumping phenomenon caused by the large contact area of ​​the traditional device that is easily disturbed by dust or debris. This not only reduces the difficulty of operation, but also effectively reduces the influence of external factors on the static balance calibration.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention utilizes the flow of gas to convert it into gas pressure and realizes the movement of the piston plate through the gas pressure, and utilizes the magnetic force of the magnetic ring to complete contactless addition of weights. No manual assistance is required in the whole process. The magnetic ring can be automatically installed by controlling the amount of gas introduced, and there is no contact during the installation process, so automatic addition at noon can be achieved. The problem of manual addition of weights in traditional operations, such as the difficulty in determining the installation position of the weights and the generation of certain external forces affecting the fan, is avoided. Not only does it not require manual assistance, but it also significantly improves the accuracy of static balance calibration.

[0024] 2. The present invention utilizes the gravity of the magnetic ring to trigger a switch when the device moves to the lowest point, and utilizes the flow of gas to use the output gas as power to drive the rotation of the fan body. The rotation angle of the fan body is proportional to the output air. The rotation angle of the fan body can be controlled by simply controlling the output air volume, thereby avoiding the problem that the traditional device requires manual assistance to rotate when the blades move to the lowest point and it is difficult to control the rotation force. The entire rotation process is controllable and relatively precise. The power source for the rotation of the fan body comes from the air that adds weight to the blades, and the air is reused for a second time, which greatly improves the work efficiency and accuracy during static balance calibration.

[0025] 3. The present invention reduces the contact area of ​​the active roller by bringing the outer side surface of the active roller into contact with the outer side surfaces of the two driven rollers, avoids the rolling between the axis and the surface in the traditional device, and converts it into a relative rotation between the two axes, thereby further reducing the friction and avoiding interference with the static balance calibration of the fan body. The active roller can also be directly supported to avoid the jumping phenomenon caused by the excessive contact area of ​​the traditional device that is easily disturbed by dust or debris. This not only reduces the difficulty of operation, but also effectively reduces the influence of external factors on the static balance calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is an exploded schematic diagram of the frame structure of the present invention;

[0028] Figure 3 It is an exploded schematic diagram of the bearing structure of the present invention;

[0029] Figure 4 It is an exploded schematic diagram of the main shaft and the fixed shell structure of the present invention;

[0030] Figure 5 It is an exploded schematic diagram of two fixed shell structures of the present invention;

[0031] Figure 6 is a schematic diagram of the fan body structure of the present invention;

[0032] Figure 7 It is an internal cross-sectional view of the leveling assembly structure of the present invention;

[0033] Figure 8 for Figure 2 A magnified schematic diagram of the structure in the middle.

[0034] In the figure: 1. fan body; 2. convex strip; 3. fixed shell; 4. magnetic block; 5. main shaft; 6. limit groove; 7. frame; 8. groove; 9. bearing; 10. driving roller; 11. driven roller; 12. base; 13. photoelectric switch; 14. magnetic ring; 15. block; 16. leveling assembly; 161. air inlet pipe; 162. reset spring; 163. piston plate; 164. extension rod; 165. mounting block; 166. exhaust pipe; 167. gas tank; 17. light-transmitting groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1 and Figure 5 as well as Figure 6 and Figure 8As shown, in an embodiment of the present invention, an aluminum alloy fan static balancing device includes a fan body 1, two fixed shells 3 are provided on the outer side of the fan body 1, a magnetic block 4 is provided at an equal angle between the two fixed shells 3, the two fixed shells 3 are adsorbed and connected by the magnetic block 4, the fan body 1 is located inside the two fixed shells 3, and leveling components 16 are installed inside the magnetic blocks 4 on the left and right sides, and the installation directions of the two leveling components 16 are opposite, a main shaft 5 is provided in the middle of the fan body 1, a base 12 is provided at the bottom end of the fixed shell 3, and a frame 7 is fixedly installed on the left and right ends of the base 12, a convex strip 2 is welded and fixed at an equal angle on the inner side of the fan body 1, a light-transmitting groove 17 is opened at the bottom end of the outer side of the fixed shell 3 on one side, and a photoelectric switch 13 is fixedly installed on the top of the base 12, and the photoelectric switch 13 and the light-transmitting groove 17 are on the same central axis.

[0037] Before using the device, the device can be placed on a horizontal ground first, and leveling operations are performed to make the device tend to a horizontal state, and the fan body 1 is sleeved on the outer side of the main shaft 5, and the two fixed shells 3 are relatively close to each other and the two fixed shells 3 are adsorbed on each other to install the fan body 1 between the two fixed shells 3, and the relative position of the fan body 1 is rotated at the same time to ensure that the fan blades on the outer side of the fan body 1 correspond to the magnetic block 4, and the external air supply device is connected to the leveling component 16, and the photoelectric switch 13 is turned on to emit infrared rays for use.

[0038] like Figure 7 As shown, the leveling assembly 16 includes an air tank 167, and the magnetic blocks 4 located on the left and right sides are provided with through grooves inside and connected to the air tank 167 through the through grooves. The left end of the air tank 167 is provided with an air inlet pipe 161, and the interior of the air tank 167 is movably sleeved with a piston plate 163, and the right end of the piston plate 163 is fixedly installed with an extension rod 164 located inside the air tank 167, and the other end of the extension rod 164 passes through the right end of the air tank 167 and is fixedly installed with a mounting block 165, and the outer side of the mounting block 165 is movably installed with a magnetic ring 14, and one end of the magnetic ring 14 is fixedly installed with a stopper 15 The block 15 corresponds to the light-transmitting groove 17 and has the same cross-sectional area as the light-transmitting groove 17. A return spring 162 located inside the gas storage tank 167 is fixedly connected between the left end of the inner cavity of the gas storage tank 167 and the left end of the piston plate 163. An exhaust pipe 166 located on the left side of the piston plate 163 is opened below the outer side of the gas storage tank 167. A one-way valve is installed inside the air inlet pipe 161 and the exhaust pipe 166, and the directions of the one-way valve are respectively inward conduction and outward cutoff and outward conduction and inward cutoff. The one-way valve inside the exhaust pipe 166 is a solenoid valve and is electrically connected to the photoelectric switch 13.

[0039] First embodiment:

[0040] During the static balance adjustment process, the fan body 1 can be rotated to make the fan blades on the outer side of the fan body 1 correspond to the leveling component 16 on the far left to complete the preparation process. At this time, the external air supply device is turned on to transport the external gas to the inside of the air storage tank 167 through the air inlet pipe 161, and pressure is applied to one end of the piston plate 163, so that the piston plate 163 can be driven to move to the right. At this time, the return spring 162 is deformed by the tension, and at the same time, when the piston plate 163 moves to the right, it will drive the extension rod 164 and the mounting block 165 to move to the right, thereby driving the magnetic ring 14 to move toward the blades on the outer side of the fan body 1. Since the blades made of alloy have a certain magnetism, when the magnetic ring 14 is close enough, the magnetic ring 14 and the blades are adsorbed. At this time, the magnetic ring 14 can be adsorbed on the outer side of the blade, and the mass of a single blade increases and begins to move circumferentially due to gravity and moves to the lowest point. At this time, the entire fan body 1 can be driven to rotate to complete the addition of weight.

[0041] The flow of gas is converted into gas pressure and the movement of the piston plate 163 is achieved through the gas pressure, and the magnetic force of the magnetic ring 14 is used to complete contactless weight addition. No manual assistance is required in the whole process. The magnetic ring 14 can be automatically installed by controlling the amount of gas introduced, and there is no contact during the installation process, so automatic addition at noon can be achieved. The problem of manual addition of weights in traditional operations, such as the difficulty in determining the installation position of the weights and the generation of certain external forces affecting the fan, is avoided. Not only is there no need for manual assistance, but the accuracy of static balance calibration is also significantly improved.

[0042] Second embodiment:

[0043] When the fan blade with the magnetic ring 14 installed moves to the lowest point of the equipment due to gravity, the block 15 at one end of the magnetic ring 14 just moves to the top of the light-transmitting groove 17. At this time, the light-transmitting groove 17 is blocked by the block 15, and the infrared light generated by the photoelectric switch 13 is blocked. At this time, the photoelectric switch 13 sends a control signal to control the valve inside the exhaust pipe 166 to open. At this time, the air inside the air storage tank 167 can be discharged from the exhaust pipe 166, and the reset spring 162 recovers its deformation to drive the piston plate 163 to automatically reset, and the output air acts on the blades on the left side of the fan to promote the fan to rotate, and the output air volume can just make the fan rotate ninety degrees, that is, the fan blade with the magnetic ring 14 moves to a position point on the same horizontal line as the output air. At this time, the magnetic ring 14 is fixed to the fan blade on the other side through the leveling component 16 again. If the fan body 1 is stationary, it means that it is in a static balance state, and vice versa. Repeat this step until the fan body 1 is in a static balance state to complete the calibration.

[0044] By utilizing the gravity of the magnetic ring 14, the switch is triggered when the device moves to the lowest point, and the flow of gas is used to use the output gas as power to drive the rotation of the fan body 1. The rotation angle of the fan body 1 is proportional to the output air. The rotation angle of the fan body 1 can be controlled by controlling the output air volume, thereby avoiding the problem that the traditional device requires manual assistance to rotate when the blades move to the lowest point and it is difficult to control the rotation force. The entire rotation process is controllable and relatively precise. The power source of the fan body 1 during rotation comes from the air that adds weight to the blades, and the air is reused for a second time, which greatly improves the work efficiency and accuracy during static balance calibration.

[0045] like Figure 3 and Figure 4 As shown, the outer side surface of the main shaft 5 is provided with limiting grooves 6 at equal angles, and the main shaft 5 is movably connected with the convex strips 2 inside the fan body 1 through the limiting grooves 6. Bearings 9 are provided on the left and right sides of the outer side surface of the main shaft 5. The inner side surface of the bearing 9 is movably connected with the limiting grooves 6, and the outer side surface of the bearing 9 is adsorbed and connected with the fixed shell 3. The main shaft 5 and the fan body 1 can rotate relative to the fixed shell 3.

[0046] Before the device is used, the limiting groove 6 is engaged with the convex strip 2 to ensure that the main shaft 5 will not deviate when driving the fan body 1 to rotate. At the same time, the bearing 9 is used to ensure that the fixed shell 3 will not rotate with the fan body 1. At the same time, the main shaft 5 and the fan body 1 can effectively reduce the resistance during rotation through the bearing 9 when rotating, thereby avoiding interference of the resistance with the static balance adjustment of the fan body 1.

[0047] like Figure 1 and Figure 2 As shown, a groove 8 is provided at the top of the frame 7, and driving rollers 10 are fixedly installed on the left and right sides of the main shaft 5. The driving roller 10 is movably connected with the groove 8, and driven rollers 11 are movably installed on the left and right sides of the inner side of the groove 8, and the left and right sides of the outer side of the driving roller 10 are in contact with the outer side of the driven roller 11.

[0048] Third embodiment:

[0049] When the device is operated, the active roller 10 can be snapped into place with the groove 8. At this time, the fixed shell 3 is just located at the center of the base 12, and the photoelectric switch 13 corresponds to the light-transmitting groove 17. When the active roller 10 rotates, the two driven rollers 11 located inside the groove 8 can rotate accordingly. At this time, the points of contact with the active roller 10 are the two ends of the outer sides of the two driven rollers 11. The two driven rollers 11 can provide support to the active roller 10 while allowing the active roller 10 to rotate in situ to assist the fan body 1 in static balance adjustment.

[0050] By bringing the outer side surface of the active roller 10 into contact with the outer side surfaces of the two driven rollers 11, the contact area of ​​the active roller 10 is reduced, the rolling between the axis and the surface in the traditional device is avoided, and the relative rotation between the two axes is converted, thereby further reducing the friction force and avoiding interference with the static balance calibration of the fan body 1. In addition, the active roller 10 can be directly supported to avoid the jumping phenomenon caused by the excessive contact area of ​​the traditional device that is easily disturbed by dust or debris. This not only reduces the difficulty of operation, but also effectively reduces the influence of external factors on the static balance calibration.

[0051] Working principle and usage process:

[0052] Before using the device, the device can be placed on a horizontal ground and leveled to make it level. The fan body 1 is sleeved on the outer side of the main shaft 5. The two fixed shells 3 are relatively close to each other and the two fixed shells 3 are adsorbed on each other. The fan body 1 is installed between the two fixed shells 3. The relative position of the fan body 1 is rotated to ensure that the blades on the outer side of the fan body 1 correspond to the magnetic block 4. The external air supply device is connected to the leveling component 16, and the photoelectric switch 13 is turned on to emit infrared rays for use.

[0053] During the static balance adjustment process, the fan body 1 can be rotated to make the fan blades on the outer side of the fan body 1 correspond to the leftmost leveling component 16 to complete the preparation process. At this time, the external air supply device is turned on to transport the external gas to the inside of the gas storage tank 167 through the air inlet pipe 161, and pressure is applied to one end of the piston plate 163, so that the piston plate 163 can be driven to move to the right. At this time, the return spring 162 is deformed by the tension. At the same time, when the piston plate 163 moves to the right, it will drive the extension rod 164 and the mounting block 165 to move to the right, thereby driving the magnetic ring 14 to move toward the blades on the outer side of the fan body 1. Since the blades made of alloy have a certain magnetism, when the magnetic ring 14 is close enough, the magnetic ring 14 and the blades are adsorbed. At this time, the magnetic ring 14 can be adsorbed on the outer side of the blade, and the mass of a single blade increases and starts to move circumferentially due to gravity and moves to the lowest point. At this time, the entire fan body 1 can be driven to rotate to complete the addition of weights.

[0054] When the fan blade with the magnetic ring 14 installed moves to the lowest point of the equipment due to the action of gravity, the block 15 at one end of the magnetic ring 14 just moves to the top of the light-transmitting groove 17. At this time, the light-transmitting groove 17 is blocked by the block 15, and the infrared light generated by the photoelectric switch 13 is blocked. At this time, the photoelectric switch 13 sends a control signal to control the valve inside the exhaust pipe 166 to open. At this time, the air inside the air storage tank 167 can be discharged from the exhaust pipe 166, and the reset spring 162 recovers its deformation to drive the piston plate 163 to automatically reset, and the output air acts on the blades on the left side of the fan to promote the fan to rotate, and the output air volume can just make the fan rotate ninety degrees, that is, the fan blade with the magnetic ring 14 moves to a position point on the same horizontal line as the output air. At this time, the magnetic ring 14 is fixed to the fan blade on the other side through the leveling component 16 again. If the fan body 1 is stationary, it means that it is in a static balance state, and vice versa. Repeat this step until the fan body 1 is in a static balance state to complete the calibration;

[0055] When the device is operated, the active roller 10 can be snapped into place with the groove 8. At this time, the fixed shell 3 is just located at the center of the base 12, and the photoelectric switch 13 corresponds to the light-transmitting groove 17. When the active roller 10 rotates, the two driven rollers 11 located inside the groove 8 can rotate accordingly. At this time, the points of contact with the active roller 10 are the two ends of the outer sides of the two driven rollers 11. The two driven rollers 11 can provide support to the active roller 10 while allowing the active roller 10 to rotate in situ to assist the fan body 1 in static balance adjustment.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A static balancing device for an aluminum alloy fan, comprising a fan body (1), characterized in that: The outer side surface of the fan body (1) is provided with two fixed shells (3), a magnetic block (4) is provided at an equal angle between the two fixed shells (3), and the two fixed shells (3) are adsorbed and connected by the magnetic block (4). The fan body (1) is located inside the two fixed shells (3), and leveling components (16) are installed inside the magnetic blocks (4) located on the left and right sides. The installation directions of the two leveling components (16) are opposite. A main shaft (5) is provided in the middle of the fan body (1), and a base (12) is provided at the bottom end of the fixed shell (3). The left and right ends of the base (12) are fixedly installed with a frame (7), and the inner side surface of the fan body (1) is welded and fixed with convex strips (2) at equal angles; A light-transmitting groove (17) is provided at the bottom end of the outer side surface of the fixed shell (3) on one side, and a photoelectric switch (13) is fixedly installed at the top end of the base (12), and the photoelectric switch (13) and the light-transmitting groove (17) are located on the same central axis; The leveling assembly (16) comprises an air tank (167), the magnetic blocks (4) located on the left and right sides are provided with through grooves inside and are connected to the air tank (167) through the through grooves, an air inlet pipe (161) is provided at the left end of the air tank (167), a piston plate (163) is movably sleeved inside the air tank (167), an extension rod (164) located inside the air tank (167) is fixedly installed at the right end of the piston plate (163), and the other end of the extension rod (164) passes through the right end of the air tank (167) and is fixedly installed with a mounting block (165); A magnetic ring (14) is movably mounted on the outer side surface of the mounting block (165); a stopper (15) is fixedly mounted on one end of the magnetic ring (14); the stopper (15) corresponds to the light-transmitting groove (17) and has the same cross-sectional area as the light-transmitting groove (17); A return spring (162) located inside the gas storage tank (167) is fixedly connected between the left end of the inner cavity of the gas storage tank (167) and the left end of the piston plate (163); an exhaust pipe (166) located on the left side of the piston plate (163) is provided below the outer side surface of the gas storage tank (167); One-way valves are installed inside the air inlet pipe (161) and the air outlet pipe (166), and the directions of the one-way valves are respectively inwardly conducting and outwardly blocking, and outwardly conducting and inwardly blocking.

2. The static balancing device for an aluminum alloy fan according to claim 1, characterized in that: The outer side surface of the main shaft (5) is provided with limit grooves (6) at equal angles. The main shaft (5) is movably connected to the convex strips (2) inside the fan body (1) through the limit grooves (6). Bearings (9) are provided on both the left and right sides of the outer side surface of the main shaft (5). The inner side surface of the bearing (9) is movably connected to the limit grooves (6). The outer side surface of the bearing (9) is connected to the fixed shell (3) by adsorption. The main shaft (5) and the fan body (1) rotate relative to the fixed shell (3).

3. The static balancing device for an aluminum alloy fan according to claim 1, characterized in that: A groove (8) is provided at the top of the frame (7), and driving rollers (10) are fixedly mounted on both left and right sides of the main shaft (5), and the driving rollers (10) are movably engaged with the groove (8). Driven rollers (11) are movably mounted on both left and right sides of the inner side surface of the groove (8), and both left and right sides of the outer side surface of the driving roller (10) are in contact with the outer side surface of the driven roller (11).

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