CN211573688U

CN211573688U - Fan structure of horizontal shaft multi-blade wind driven generator

Info

Publication number: CN211573688U
Application number: CN201922378931.6U
Authority: CN
Inventors: 张长强
Original assignee: Wuxi Wind Teng New Energy Technology Development Co ltd
Current assignee: Wuxi Wind Teng New Energy Technology Development Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-25
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a fan structure of multi-blade aerogenerator of horizontal axis relates to the aerogenerator field, the utility model discloses a fan structure includes wheel hub and evenly installs a plurality of fan blades of wheel hub periphery, be equipped with hollow out construction between the last adjacent fan blade of wheel hub, wheel hub includes hub core and wheel hub panel, the fixed department that puts at wheel hub panel central point that sets up of hub core, the fan blade is the whole laser cutting shaping of metal to adopt the panel beating to handle. The utility model discloses a fretwork design on wheel hub makes the utility model discloses a wheel hub deadweight greatly reduced makes the utility model discloses a fan structure easily starts under low wind speed, has pleasing to the eye effect concurrently simultaneously, has ensured simultaneously the utility model discloses a safe life of fan structure under abominable operating mode.

Description

Fan structure of horizontal shaft multi-blade wind driven generator

Technical Field

The utility model relates to a aerogenerator field, in particular to multi-blade aerogenerator's of horizontal axis fan structure.

Background

In the market, a hub and blades of a traditional S/M type horizontal shaft wind driven generator are integrally cast and processed by nylon materials, and fan blades are generally 3-5 blades. The disadvantages brought by the fan assembled in this way are: the wind driven generator is difficult to start under the condition of low wind speed due to the limitation of the number of the blades, and the wind energy utilization rate is low; secondly, because nylon is fragile at low temperature, the nylon can bear the tensile force of only 65-75N.M by testing, and cannot be safely and normally used in extreme cases. In areas with high altitude, cold ultraviolet and strong ultraviolet, after the wind driven generator runs for a long time, the strength of the blades and the hub is obviously reduced, the conditions that the blades fall off or the hub falls off are all the same due to the centrifugal force of the blades, the potential safety hazard cannot be volatilized, the service life of the fan is short, and the obvious defects and potential safety hazard are overcome in the aspects of safety and durability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-blade aerogenerator's of horizontal axis fan structure solves current horizontal axis aerogenerator and has obvious not enough problem in the aspect of security, durability.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a fan structure of a horizontal shaft multi-blade wind driven generator comprises a hub and a plurality of blades uniformly arranged on the periphery of the hub, wherein a hollow structure is arranged between every two adjacent blades on the hub, the hub comprises a hub core and a hub panel, the hub core is fixedly arranged at the center of the hub panel, and the blades are formed by metal integral laser cutting and are processed by metal plates.

Preferably, the metal is an aluminum alloy or stainless steel.

Preferably, the hub core is welded to the hub panel at a central position.

Preferably, the fan blades are 8 and are uniformly distributed on the periphery of the hub.

Preferably, the hub panel is formed by laser cutting of a stainless steel plate, and the edge of the hub panel is processed by a metal plate.

Preferably, the hub core is integrally machined by 45# round steel, a threaded hole is machined in the hub core, and the hub core is connected with the fan spindle through threads.

Preferably, the hub panel surface is subjected to anticorrosive and antirust treatment.

By adopting the technical scheme, the utility model discloses a fretwork design on wheel hub makes the utility model discloses a wheel hub dead weight greatly reduced makes the fan structure of the utility model easily starts under low wind speed, has aesthetic effect simultaneously concurrently, has ensured the safe life of the fan structure of the utility model under abominable operating mode simultaneously; the fan blades are formed by metal integral laser cutting and are processed by metal plates, so that the aerodynamic performance is better met, and the starting wind speed is further reduced; and is difficult for ageing the embrittlement in severe cold area, has increaseed the utility model discloses a whole life of fan structure. The utility model discloses a fan structure overall design is pleasing to the eye, and the overall arrangement is compact. Through the test, the utility model discloses a fan structure's start-up wind speed can reach below 1.2 m/s.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of portion A of FIG. 1;

fig. 3 is a schematic structural view of a hub panel according to the present invention;

fig. 4 is a schematic structural view of a fan blade of the present invention;

fig. 5 is a schematic structural view of the hub according to the present invention.

In the figure, 1-hub, 2-fan blade, 3-hollow structure, 4-hub core and 5-hub panel.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-5, a fan structure of a horizontal-axis multi-blade wind turbine includes a hub 1 and a plurality of blades 2 uniformly mounted on the periphery of the hub 1, a hollow structure 3 is disposed between adjacent blades 2 on the hub 1, the hub 1 includes a hub core 4 and a hub panel 5, the hub core 4 is fixedly disposed at the center of the hub panel 5 and is used for being mounted and connected with a wind turbine main shaft, and the blades 2 are formed by integral laser cutting of metal and are processed by metal plates.

When in use, the fan structure of the utility model is arranged on the main shaft of the fan through the hub core 4, the dead weight of the hub 1 of the utility model is greatly reduced through the hollow design on the hub 1, so that the fan structure of the utility model is easy to start under low wind speed, and simultaneously has aesthetic effect, and simultaneously ensures the safe service life of the fan structure under severe working conditions; the fan blade 2 is formed by metal integral laser cutting and is processed by a metal plate, so that the aerodynamics is better met, and the starting wind speed is further reduced; and is difficult for ageing the embrittlement in severe cold area, has increaseed the utility model discloses a whole life of fan structure. The utility model discloses a fan structure overall design is pleasing to the eye, and the overall arrangement is compact. Through the test, the utility model discloses a fan structure's start-up wind speed can reach below 1.2 m/s.

Specifically, the metal is aluminum alloy or stainless steel, so that the strength and the service life of the fan blade 2 can be ensured, and the cheap and easy availability of raw materials can be ensured. The aluminum alloy or stainless steel integral laser cutting back metal plate molding is adopted to replace the conventional nylon fan blade, and the safe service life under severe working conditions is more suitable. The aluminum material or the stainless steel is adopted, the dead weight is light, the required starting wind speed is small, meanwhile, the corrosion resistance of the aluminum and the stainless steel is better than that of iron, the tensile strength is better than that of nylon, the aluminum and the stainless steel are suitable for being used in coastal high-salt-spray areas and high-altitude cold areas, and the service life is obviously prolonged.

In order to ensure the stability of the mounting connection of the hub 4 and the hub panel 5, the hub 4 is welded to the hub panel 5 at a central position.

The hub 1 is an important component of the wind driven generator, is a key part for connecting the fan blade and a main machine of the wind driven generator, and the starting wind speed is also an important index for measuring whether the performance of the wind driven generator is excellent, and the starting wind speed is closely related to the number of the fan blades, and meanwhile, the design of the hub 1 is particularly critical considering that the fan is used in a severe cold area with high altitude and high material requirement. The utility model discloses a fan blade 2 is 8, and evenly distributed can make full use of wind-force resource in 1 periphery of wheel hub, and more conventional three-blade aerogenerator generating efficiency promotes about 20 ~ 30%.

In order to guarantee wheel hub panel 5's use intensity, wheel hub panel 5 adopts corrosion resistant plate laser cutting shaping, and the edge adopts the panel beating to handle for wheel hub panel 5 is difficult ageing fragile in severe cold area, has increaseed the utility model discloses a whole life.

Because hub core 4 is used for connecting fan structure and fan main shaft, the intensity and the stability of hub core 4 greatly influence the life of generator, hub core 4 adopts 45# round steel whole processing, and inside processing screw hole is through threaded connection between hub core 4 and the fan main shaft, can guarantee the utility model discloses a fan structure is connected with fan main shaft is stable.

In order to further prolong the service life of the hub 1, the surface of the hub panel 5 is subjected to corrosion and rust prevention treatment.

The utility model discloses a fan blade 2 and wheel hub panel 5 are panel laser cutting one shot forming, and the later stage only needs to carry out panel beating and handle and anticorrosive rust-resistant processing in surface, and the preparation course of working is compared and will be saved more than 60% in traditional processing technology before, greatly improves the productivity when batch production.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a fan structure of horizontal axis multi-blade aerogenerator which characterized in that: the wheel hub comprises a wheel hub (1) and a plurality of fan blades (2) which are uniformly arranged on the periphery of the wheel hub (1), hollow-out structures (3) are arranged between the adjacent fan blades (2) on the wheel hub (1), the wheel hub (1) comprises a hub core (4) and a wheel hub panel (5), the hub core (4) is fixedly arranged at the center of the wheel hub panel (5), and the fan blades (2) are formed by metal integral laser cutting and are processed by metal plates.

2. The fan structure of a horizontal-axis multiple-blade wind turbine according to claim 1, wherein: the metal is aluminum alloy or stainless steel.

3. The fan structure of a horizontal-axis multiple-blade wind turbine according to claim 1, wherein: the hub core (4) is welded at the center of the hub panel (5).

4. The fan structure of a horizontal-axis multiple-blade wind turbine according to claim 1, wherein: the fan blades (2) are 8 and are uniformly distributed on the periphery of the hub (1).

5. The fan structure of a horizontal-axis multiple-blade wind turbine according to claim 1, wherein: the hub panel (5) is formed by laser cutting of a stainless steel plate, and the edges of the hub panel are processed by metal plates.

6. The fan structure of a horizontal axis multiple blade wind power generator according to claim 1 or 3, wherein: the hub core (4) is integrally machined by 45# round steel, a threaded hole is machined in the hub core, and the hub core (4) is connected with the fan spindle through threads.

7. The fan structure of a horizontal axis multiple blade wind power generator according to claim 1 or 5, wherein: and the surface of the hub panel (5) is subjected to anticorrosive and antirust treatment.