Rivet-free integrally-formed impeller

Abstract

The utility model discloses a rivet-free integrally-formed impeller, relates to the technical field of fan impellers, and aims at solving the problems that a traditional assembled impeller is prone to deformation, disordered vortexes are prone to being generated when air is driven to form airflow in the working process, then wind resistance is increased, and the service life is short. Comprising a center hub assembly, a connecting assembly and a blade assembly, and the center hub assembly comprises a fixing base, a connecting column arranged at the top of the fixing base and a connecting screw hole which is formed in the connecting column and penetrates through the fixing base; the connecting assemblies are evenly distributed on the edge of the fixing base, and the blade assemblies are arranged at the bottoms of the center hub assembly and the connecting assemblies. By designing the center hub assembly, the connecting assembly and the blade assembly, the center hub assembly, the connecting assembly and the blade assembly are integrally formed in a die-casting mode, rivet connection is not needed, the appearance is attractive, wind resistance is small in the working process, noise is low, toughness is enhanced, deformation is not prone to occurring, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine impeller technology, and more specifically, to a rivetless one-piece molded impeller. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. In China, "fan" is a common abbreviation for gas compression and gas transportation machinery, and generally includes ventilators, blowers, and wind turbines. They are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings for ventilation, dust removal, and cooling, as well as for ventilation and induced draft in boilers and industrial furnaces. The fan impeller is a key core component of the fan; good design, reliable quality, and superior performance are decisive factors in ensuring the normal and stable operation of the unit.

[0003] During impeller assembly, the blades are clamped together by the action of the upper and lower hubs. However, it is difficult to ensure that the angles of each blade are consistent. When the impeller drives the gas to form an airflow during operation, it is easy to generate disordered vortices, which increases wind resistance and leads to a shorter service life. Based on the above problems, we propose a rivetless one-piece molded impeller. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a rivetless one-piece molded impeller to solve the problems of traditional assembled impellers being prone to deformation, generating chaotic vortices when driving gas to form airflow during operation, thereby increasing wind resistance and resulting in a short service life.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a rivetless one-piece molded impeller, including a central hub assembly, a connecting assembly, and a blade assembly. The central hub assembly includes a fixed seat, a connecting column disposed on the top of the fixed seat, and a connecting screw hole disposed inside the connecting column and penetrating the fixed seat. The connecting assembly is evenly distributed on the edge of the fixed seat, and the blade assembly is disposed at the bottom of the central hub assembly and the connecting assembly.

[0006] The connecting component and the fixed base are integrally die-cast, and the blade assembly, the central hub assembly, and the connecting component are integrally die-cast.

[0007] Preferably, the connecting assembly includes connecting arms evenly distributed along the edge of the fixed base, a reinforcing plate disposed at one end of the connecting arm, and a first flow surface disposed on the surface of the reinforcing plate.

[0008] Preferably, the blade assembly includes a connecting portion disposed at the bottom of the fixing seat, a blade body disposed at the edge of the connecting portion, a second flow portion disposed on one side of the surface of the blade body, and a third flow portion disposed on the other side of the surface of the blade body.

[0009] Preferably, a locking screw hole is provided on one side of the connecting post, and the locking screw hole is connected to the connecting screw hole. A through hole is provided in the middle of the connecting part, and the through hole is connected to the bottom of the connecting screw hole.

[0010] Preferably, there are three sets of connecting components, which are distributed in a ring at equal angles on the edge of the central hub assembly. There are also three sets of blade bodies, and the top of the blade body is connected to the bottom of the reinforcing plate on the side closest to the reinforcing plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model designs a central hub assembly, a connecting assembly, and a blade assembly, which are integrally die-cast, eliminating the need for rivet connections. This results in an aesthetically pleasing appearance, reduced wind resistance and noise during operation, enhanced toughness, reduced deformation, improved stability, and a longer service life.

[0013] 2. This utility model also designs a central hub assembly, a connecting assembly, and a blade assembly. The central hub assembly, the connecting assembly, and the blade assembly are integrally die-cast. Compared with the traditional assembled impeller, the overall molding and manufacturing is simple and easy, the manufacturing cost is reduced by 20%, there is no need for rivet connection, the overall weight is reduced, the wind power is greater and more concentrated, and the blowing distance is farther. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the central hub assembly structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection component structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the blade assembly structure of this utility model.

[0019] The following are the labels in the diagram: 1. Center hub assembly; 101. Mounting base; 102. Connecting column; 103. Connecting screw hole; 104. Locking screw hole; 2. Connecting assembly; 201. Connecting arm; 202. Reinforcing plate; 203. First flow face; 3. Blade assembly; 301. Connecting part; 302. Blade body; 303. Second flow face; 304. Third flow face; 305. Through hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] This utility model relates to a rivetless, one-piece molded impeller, comprising a central hub assembly 1, a connecting assembly 2, and a blade assembly 3. The central hub assembly 1 includes a fixed base 101, a connecting post 102 fixedly connected to the top of the fixed base 101, and a connecting screw hole 103 formed inside the connecting post 102 and penetrating the fixed base 101. The connecting post 102 and the fixed base 101 are integrally die-cast. The fixed base 101 is used to connect to a connecting arm 201, and the connecting post 102 is used to form the connecting screw hole 103, which is used to connect to the output end of a drive mechanism to transmit rotational power. The connecting assembly 2 is evenly distributed on the edge of the fixed base 101, and the blade assembly 3 is fixedly connected to the bottom of the central hub assembly 1 and the connecting assembly 2. The connecting assembly 2 and the fixed base 101 are integrally die-cast. The blade assembly 3, the central hub assembly 1, and the connecting assembly 2 are integrally die-cast. This invention, by designing the central hub assembly 1, connecting assembly 2, and blade assembly 3 as an integral die-cast unit, eliminates the need for rivet connections, resulting in an aesthetically pleasing appearance. During operation, it exhibits low wind resistance, low noise, enhanced toughness, and is less prone to deformation and vibration, thus improving stability and extending service life. Furthermore, by integrating the central hub assembly 1, connecting assembly 2, and blade assembly 3 into a single die-cast unit, compared to traditional assembled impellers, the overall molding and manufacturing process is simplified, reducing manufacturing costs by 20%. The elimination of rivet connections also reduces overall weight, resulting in stronger and more concentrated airflow and a longer blowing distance.

[0022] Specifically, the connecting component 2 includes a connecting arm 201 uniformly fixedly connected to the edge of the fixing seat 101, a reinforcing plate 202 fixedly connected to one end of the connecting arm 201, and a first flow surface 203 formed on the surface of the reinforcing plate 202. The connecting arm 201 is used to connect the fixing seat 101 and the reinforcing plate 202. The reinforcing plate 202 is used to connect the blade body 302 and to enhance the structural strength of the connection between the blade body 302 and the central hub assembly 1. The first flow surface 203 is used to reduce flow separation and resistance and improve energy conversion efficiency.

[0023] Specifically, the blade assembly 3 includes a connecting part 301 fixedly connected to the bottom of the mounting base 101, a blade body 302 fixedly connected to the edge of the connecting part 301, a second flow section 303 formed on one side of the surface of the blade body 302, and a third flow section 304 formed on the other side of the surface of the blade body 302. The connecting part 301 is used to connect with the mounting base 101, the blade body 302 is used to realize the hydrodynamic function, and the second flow section 303 and the third flow section 304 are used to reduce flow separation and resistance and improve energy conversion efficiency.

[0024] It is worth mentioning that a locking screw hole 104 is provided on one side of the connecting column 102, and the locking screw hole 104 is connected to the connecting screw hole 103 to improve the stability of the connection. A through hole 305 is provided in the middle of the connecting part 301, and the through hole 305 is connected to the bottom of the connecting screw hole 103. The through hole 305 is used to facilitate the connection of the blade assembly 3 to the output end of the drive mechanism.

[0025] It is worth noting that there are three sets of connecting components 2, which are distributed in a ring at equal angles on the edge of the central hub assembly 1. There are also three sets of blade bodies 302, and the top of the blade body 302 is connected to the bottom of the reinforcing plate 202 on the side close to the reinforcing plate 202, thus forming an integrated structure to avoid inconsistencies in angle caused by installation errors.

[0026] Working Principle: This embodiment provides a rivetless one-piece molded impeller. In use, the connecting column 102 is first connected to the output end of the drive mechanism through the connecting screw hole 103. Then, the impeller is fixed and locked by bolts and locking screw holes 104. The connecting component 2 and the blade assembly 3, the center hub assembly 1, the connecting component 2 and the blade assembly 3 are integrally die-cast, eliminating the need for rivet connections. This results in an aesthetically pleasing appearance, low wind resistance and noise during operation, enhanced toughness, resistance to deformation, and good stability, which helps extend service life. Compared with traditional assembled impellers, the integral die-casting of the connecting component 2 and the blade assembly 3, the center hub assembly 1, the connecting component 2 and the blade assembly 3 simplifies manufacturing, reduces manufacturing costs by 20%, eliminates the need for rivet connections, reduces overall weight, and provides stronger and more concentrated airflow over a longer distance.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A rivetless, one-piece molded impeller, characterized in that, The device includes a central hub assembly (1), a connecting assembly (2), and a blade assembly (3). The central hub assembly (1) includes a fixed base (101), a connecting post (102) disposed on the top of the fixed base (101), and a connecting screw hole (103) disposed inside the connecting post (102) and penetrating the fixed base (101). The connecting assembly (2) is evenly distributed on the edge of the fixed base (101), and the blade assembly (3) is disposed at the bottom of the central hub assembly (1) and the connecting assembly (2). Among them, the connecting component (2) and the fixed seat (101) are integrally die-cast, and the blade component (3) is integrally die-cast with the central hub component (1) and the connecting component (2).

2. The rivetless one-piece molded impeller according to claim 1, characterized in that, The connecting assembly (2) includes a connecting arm (201) evenly disposed on the edge of the fixed seat (101), a reinforcing plate (202) disposed at one end of the connecting arm (201), and a first flow surface (203) disposed on the surface of the reinforcing plate (202).

3. The rivetless one-piece molded impeller according to claim 2, characterized in that, The blade assembly (3) includes a connecting part (301) disposed at the bottom of the fixing seat (101), a blade body (302) disposed at the edge of the connecting part (301), a second flow face (303) disposed on one side of the surface of the blade body (302), and a third flow face (304) disposed on the other side of the surface of the blade body (302).

4. The rivetless one-piece molded impeller according to claim 3, characterized in that, The connecting post (102) has a locking screw hole (104) on one side, and the locking screw hole (104) is connected to the connecting screw hole (103). The connecting part (301) has a through hole (305) in the middle, and the through hole (305) is connected to the bottom of the connecting screw hole (103).

5. The rivetless one-piece molded impeller according to claim 4, characterized in that, The number of connecting components (2) is three, which are distributed in a ring at equal angles on the edge of the central hub assembly (1). The number of blade bodies (302) is also three, and the top of the blade body (302) is connected to the bottom of the reinforcing plate (202) on the side close to the reinforcing plate (202).

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