High-strength aluminum alloy impeller structure for high-pressure fan

Abstract

The utility model relates to fan impeller technical field, concretely is a kind of high-strength aluminum alloy impeller structure for high pressure fan, including the base disc and front cover assembly made of high-strength aluminum alloy, leaf blade assembly is arranged between the base disc with the front cover assembly, annular reinforcing assembly is provided at the back of base disc, connecting piece is fixed in the center of annular reinforcing assembly, the inside of base disc is equipped with multiple annular distribution counterweight, the utility model is designed and cooperates with counterweight etc. structure of base disc, front cover assembly, leaf blade assembly, annular reinforcing assembly, connecting piece, multiple technical promotion is realized, high-strength aluminum alloy is used as main material, while having good strength basis in the guarantee light weight.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine impeller technology, specifically a high-strength aluminum alloy impeller structure for high-pressure wind turbines. Background Technology

[0002] High-pressure blowers play a core role in industrial dust removal and pneumatic conveying, and their impeller structure directly affects the blower's performance and lifespan. Currently, most aluminum alloy impellers on the market adopt a single-blade, flat base design, which has several drawbacks: the base lacks effective reinforcement, making it prone to deformation or even breakage under the centrifugal force and airflow impact generated by high-speed rotation; dynamic balancing relies solely on traditional drilled counterweights, resulting in insufficient adjustment precision, leading to severe vibration during impeller operation and accelerated bearing wear; furthermore, the connection between the base and the front cover assembly is weak, making it difficult to withstand the long-term impact of high-pressure airflow, posing a safety hazard. With increasing demands for blower stability, efficiency, and durability in industrial settings, there is an urgent need for a new impeller structure design that balances high strength, high-precision dynamic balancing, and reliable connections. Utility Model Content

[0003] The purpose of this invention is to provide a high-strength aluminum alloy impeller structure for high-pressure blowers, so as to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a high-strength aluminum alloy impeller structure for high-pressure blowers, including a base plate and a front cover assembly made of high-strength aluminum alloy, a blade assembly is provided between the base plate and the front cover assembly, an annular reinforcing assembly is provided on the back side of the base plate, a connector is fixed at the center of the annular reinforcing assembly, and multiple annularly distributed counterweights are installed on the inner side of the base plate.

[0005] The aforementioned components achieve the following effects: through the design and coordination of the base plate, front cover assembly, blade assembly, annular reinforcing assembly, connectors, and counterweights, multiple technological improvements are realized. High-strength aluminum alloy is used as the main material, ensuring both lightweight design and excellent strength. The annular reinforcing assembly on the back of the base plate enhances the overall structural strength, the central connector facilitates the connection between the impeller and the fan shaft, and the counterweights are used to adjust the impeller's dynamic balance. Compared to traditional impeller structures, this design increases structural strength, improves operational stability, effectively reduces vibration and wear caused by imbalance, extends impeller lifespan, and the lightweight design also reduces the load on the fan motor.

[0006] Preferably, the blade assembly includes a first blade and a second blade arranged in a ring on the inner side of the base plate, the arc length of the second blade is shorter than that of the first blade, the second blade and the first blade are spaced apart, and the connection between the first blade and the second blade and the base plate is provided with a thickened chamfer.

[0007] The effects achieved by the above-mentioned components are as follows: the second blade and the first blade are arranged in an alternating pattern of long and short blades, which breaks the airflow pattern of the traditional single blade layout. This makes the airflow form a more complex and orderly flow field when passing through the impeller, reducing the generation of eddies and turbulence, and improving the aerodynamic efficiency of the fan. At the same time, the thickened chamfer set at the connection between the first and second blades and the base plate increases the strength of the connection between the blade and the base plate, reducing the risk of blade root breakage under the impact of high-pressure airflow. On the other hand, the smooth chamfer transition reduces the airflow resistance and energy loss at the connection point, further optimizing the aerodynamic performance.

[0008] Preferably, the front cover assembly includes a front cover, a conical hopper is provided at the center of the front cover, an air vent is provided at one end of the conical hopper, and reinforcing ribs are provided on the outer side of the front cover.

[0009] The effects achieved by the above components are as follows: the conical hopper and air inlet in the center of the front cover can guide the outgoing gas, making the gas more even and smooth, reducing gas impact and energy loss, and improving the intake efficiency of the fan. The reinforcing ribs on the outside of the front cover enhance the structural strength of the front cover itself, making it less prone to deformation under the pressure of high-pressure gas, and ensuring the stability of the overall impeller structure.

[0010] Preferably, the annular reinforcing component includes a boss fixed at the center of the base plate, a reinforcing ring at the outer edge of the base plate, and a plurality of annularly distributed ribs between the reinforcing ring and the boss. The height of the ribs decreases from the boss to the outer edge, and the connector is fixed on the boss.

[0011] The effect achieved by the above components is that the connecting parts composed of reinforcing ring, boss and rib form a three-dimensional reinforcing frame, which can effectively disperse and withstand the centrifugal force from the blades and the force of the airflow when the impeller rotates at high speed.

[0012] Preferably, the connector includes an end tube fixed on the protrusion, the end tube having a insertion groove, and the insertion groove having a keyway on its inner side.

[0013] The effects achieved by the above components are as follows: the insertion slot can fit tightly with the motor shaft to achieve axial positioning; the keyway and key fit ensure reliable torque transmission between the impeller and the shaft, avoid relative slippage or loosening during high-speed rotation, and ensure the stability and accuracy of power transmission.

[0014] Preferably, the outer edge of the base plate is provided with a plurality of annularly distributed T-shaped dynamic balance counterweight grooves, and the counterweight block is disposed in the T-shaped dynamic balance counterweight grooves.

[0015] The effect achieved by the above components is that the T-shaped dynamic balance counterweight groove and the counterweight block set on the outer edge of the base plate can accurately adjust the dynamic balance of the impeller. During the impeller manufacturing or use, by placing or adjusting the position and number of counterweight blocks in different counterweight grooves, the problem of uneven mass distribution caused by manufacturing errors, uneven materials and other factors can be effectively compensated.

[0016] This utility model provides an improved high-strength aluminum alloy impeller structure for high-pressure blowers, which has the following improvements and advantages compared with the prior art:

[0017] Firstly, this utility model achieves multiple technological improvements through the design and coordination of structures such as the base plate, front cover assembly, blade assembly, annular reinforcing assembly, connectors, and counterweights. It uses high-strength aluminum alloy as the main material, ensuring lightweight while possessing a good strength foundation.

[0018] Secondly, in this invention, the second blade and the first blade are arranged in an alternating pattern of long and short blades, which breaks the traditional airflow pattern of a single blade layout. This allows the airflow to form a more complex and orderly flow field when passing through the impeller, reducing the generation of eddies and turbulence and improving the aerodynamic efficiency of the fan. Attached Figure Description

[0019] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective;

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0022] Figure 3 This is a three-dimensional structural diagram of the blade assembly in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base plate; 2. Front cover assembly; 21. Front cover; 22. Reinforcing rib; 23. Air duct; 3. Blade assembly; 31. First blade; 32. Second blade; 33. Thickened chamfer; 4. Connector; 41. End tube; 42. Insertion groove; 43. Keyway; 5. Counterweight; 6. Annular reinforcing assembly; 61. Reinforcing ring; 62. Boss; 63. Raised rib. Detailed Implementation

[0025] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0026] This utility model provides an improved high-strength aluminum alloy impeller structure for high-pressure blowers. The technical solution of this utility model is as follows:

[0027] In embodiments of this utility model, such as Figures 1-3 As shown, a high-strength aluminum alloy impeller structure for a high-pressure blower includes a base plate 1 and a front cover assembly 2 made of high-strength aluminum alloy. The front cover assembly 2 includes a front cover 21, with a conical hopper at its center and an air guide port 23 at one end. Reinforcing ribs 22 are provided on the outer side of the front cover 21. The conical hopper and air guide port 23 at the center of the front cover 21 guide the outgoing gas, making the gas more evenly and smoothly discharged. The reinforcing ribs 22 on the outer side of the front cover 21 enhance its structural strength, making it less prone to deformation under the pressure of high-pressure gas. The base plate 1 and... A blade assembly 3 is provided between the front cover assembly 2. The blade assembly 3 includes a first blade 31 and a second blade 32 arranged in a ring on the inner side of the base plate 1. The arc length of the second blade 32 is shorter than that of the first blade 31. The second blade 32 and the first blade 31 are spaced apart. A thickened chamfer 33 is provided at the connection between the first blade 31 and the second blade 32 and the base plate 1. The second blade 32 and the first blade 31 are arranged in an alternating manner of long and short blades, which breaks the traditional airflow pattern of a single blade layout, so that the airflow forms a more complex and orderly flow field when passing through the impeller, reducing the generation of eddies and turbulence.

[0028] An annular reinforcing component 6 is provided on the back side of the base plate 1. The annular reinforcing component 6 includes a boss 62 fixed at the center of the base plate 1, a reinforcing ring 61 at the outer edge of the base plate 1, and multiple annularly distributed ribs 63 between the reinforcing ring 61 and the boss 62. The height of the ribs 63 decreases from the boss 62 to the outer edge. A connector 4 is fixed on the boss 62. The connector 4, composed of the reinforcing ring 61, the boss 62, and the ribs 63, forms a three-dimensional reinforcing frame. When the impeller rotates at high speed, it can effectively disperse and withstand the centrifugal force from the blades and the force of the airflow. A connector 4 is fixed at the center of the annular reinforcing component 6. The connector 4 includes an end tube 41 fixed on the boss 62. An insertion groove 42 is provided in the end tube 41. A keyway 43 is opened on the inner side of the insertion groove 42. The insertion groove 42 can be tightly matched with the motor shaft to achieve axial positioning. The matching of the keyway 43 and the key ensures the reliable transmission of torque between the impeller and the shaft and avoids relative sliding or loosening during high-speed rotation.

[0029] Multiple annularly distributed counterweights 5 are installed on the inner side of the base plate 1, and multiple annularly distributed T-shaped dynamic balance counterweight grooves are provided on the outer edge of the base plate 1. The counterweights 5 are set in the T-shaped dynamic balance counterweight grooves. The T-shaped dynamic balance counterweight grooves on the outer edge of the base plate 1 cooperate with the counterweights 5 to accurately adjust the dynamic balance of the impeller. During the impeller manufacturing or use, by placing or adjusting the position and number of counterweights 5 in different counterweight grooves, the problem of uneven mass distribution caused by manufacturing errors, uneven materials and other factors can be effectively compensated.

[0030] The working principle of the high-strength aluminum alloy impeller structure for high-pressure blowers provided by this utility model is as follows: The impeller structure is composed of a base plate 1, a front cover assembly 2, a blade assembly 3, an annular reinforcing assembly 6, a connector 4, and a counterweight 5. High-strength aluminum alloy is used as the main material, which ensures both lightweight and good strength. The second blade 32 and the first blade 31 are arranged in an alternating pattern of long and short blades, breaking the traditional single-blade layout airflow pattern. This makes the airflow form a more complex and orderly flow field when passing through the impeller, reducing the generation of eddies and turbulence. The connector 4, composed of a reinforcing ring 61, a boss 62, and a rib 63, forms a three-dimensional reinforcing frame. When the impeller rotates at high speed, it can effectively disperse and bear the centrifugal force from the blades and the force of the airflow. The T-shaped dynamic balance counterweight groove set on the outer edge of the base plate 1 cooperates with the counterweight 5 to accurately adjust the dynamic balance of the impeller. During the manufacturing or use of the impeller, by placing or adjusting the position and number of counterweights 5 in different counterweight grooves, the problem of uneven mass distribution caused by manufacturing errors, uneven materials, and other factors can be effectively compensated.

[0031] 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 high-strength aluminum alloy impeller structure for a high-pressure blower, characterized in that, It includes a base plate (1) and a front cover assembly (2) made of high-strength aluminum alloy. A blade assembly (3) is provided between the base plate (1) and the front cover assembly (2). An annular reinforcing assembly (6) is provided on the back side of the base plate (1). A connector (4) is fixed at the center of the annular reinforcing assembly (6). Multiple annularly distributed counterweights (5) are installed on the inner side of the base plate (1).

2. The high-strength aluminum alloy impeller structure for high-pressure blowers according to claim 1, characterized in that: The blade assembly (3) includes a first blade (31) and a second blade (32) arranged in a ring on the inner side of the base plate (1). The arc length of the second blade (32) is shorter than that of the first blade (31). The second blade (32) and the first blade (31) are spaced apart. The connection between the first blade (31) and the second blade (32) and the base plate (1) is provided with a thickened chamfer (33).

3. The high-strength aluminum alloy impeller structure for high-pressure blowers according to claim 1, characterized in that: The front cover assembly (2) includes a front cover (21), a conical hopper is provided at the center of the front cover (21), an air vent (23) is provided at one end of the conical hopper, and a reinforcing rib (22) is provided on the outer side of the front cover (21).

4. The high-strength aluminum alloy impeller structure for high-pressure blowers according to claim 1, characterized in that: The annular reinforcing component (6) includes a boss (62) fixed at the center of the base plate (1), a reinforcing ring (61) at the outer edge of the base plate (1), and a plurality of annularly distributed ribs (63) between the reinforcing ring (61) and the boss (62). The height of the ribs (63) decreases from the boss (62) to the outer edge. The connector (4) is fixed on the boss (62).

5. The high-strength aluminum alloy impeller structure for a high-pressure blower according to claim 4, characterized in that: The connector (4) includes an end tube (41) fixed on the boss (62), and a plug groove (42) is provided inside the end tube (41), and a keyway (43) is provided inside the plug groove (42).

6. The high-strength aluminum alloy impeller structure for high-pressure blowers according to claim 1, characterized in that: The base plate (1) has multiple annularly distributed T-shaped dynamic balance counterweight grooves on its outer edge, and the counterweight block (5) is set in the T-shaped dynamic balance counterweight groove.

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