CN201116512Y - Lightweight vertical axis wind turbine rotor - Google Patents

Abstract

A wind wheel of a vertical axis wind power generator with a lightweight structure, including a vertical axis and a plurality of blades arranged on it, characterized in that: upper and lower discs are arranged on the vertical axis, and the upper and lower supporting rims are evenly spaced. The uniformly distributed radial tension support rods are connected to the upper and lower fixed wheels, and each support rod forms a certain angle with the radial direction of the rim, and fan blades are arranged between the upper and lower tension support rods. . The utility model is characterized in that: the fan blades are made of light thin plate material, which greatly reduces the cost of the fan blades and reduces the weight of the fan blades, realizes the purpose of driving the breeze, improves the power generation efficiency, and through the design of the fan blade fixing mechanism , the fan blades can be easily replaced, and the maintenance is very convenient. Due to the soft wind blades used, the windward angle can be increased to a certain extent when the windward side receives wind, and the leeward area can be reduced when the leeward side is leeward, thereby increasing the speed of the wind rotor.

Description

Lightweight vertical axis wind turbine rotor

technical field

The utility model relates to a wind power generator, in particular to a wind wheel of a vertical axis wind power generator with a lightweight structure, in particular to a wind wheel made of soft materials or low-strength materials, which is cheap and whose structural weight is greatly reduced compared with the traditional design design.

Background technique

As we all know, wind energy is an inexhaustible source of energy. It is safe, clean, abundant, and pollution-free. The use of wind power to generate electricity has become the most important situation in the use of wind energy in the world today, and has received great attention from various countries. Rapid development and huge market potential.

The wind rotor is a key component of the wind turbine, and the structural design of the wind rotor is very important, which is related to the power generation effect of the entire device.

At present, wind power generators are generally divided into vertical axis wind power generators and horizontal axis wind power generators in terms of the form of wind rotors. Generally, horizontal axis wind power generators have wind rotor blades that must face the wind. Defects such as high leaf hardness and toughness requirements, high production costs, etc. However, the current vertical axis wind turbines also have the disadvantage of high production cost of the blades. Can lighter and lower-cost materials be used to make the blades, reduce the weight of the blades, reduce the rotation loss of the blades themselves, and realize the breeze start. It is a hot issue in the structural design of the wind turbine rotor.

Contents of the invention

The purpose of this utility model is to aim at the problems existing in the above-mentioned prior art and specially design a light-weight structure vertical axis wind turbine with reasonable design, simple structure, light weight and lower cost of the fan blade itself, and can realize breeze starting. Generator wind wheel.

The purpose of this utility model is achieved through the following technical proposals: the wind wheel of the light-weight structure vertical axis wind power generator includes a vertical axis and a plurality of wind blades arranged on the vertical axis, wherein: the vertical axis is provided with upper, lower The lower fixed roulette, the upper and lower supporting rims are connected with the upper and lower fixed roulettes through uniformly distributed radial tension support rods, and each tension support rod is 0°-80° to the radial direction of the rim. °, fan blades are arranged between the upper and lower force support rods.

In the utility model, the fan blades can be made of light thin plate materials, such as: strong cloth, chemical fiber nylon material, thin steel plate, thin stainless steel, etc., and the flexible fan blades are arranged on the upper and lower force support rods through the fan blade fixing mechanism Among them, the fan blade fixing mechanism consists of a hollow round rod set on the tension support rod, a groove opened on the outer wall of the hollow round rod and a slotted rod pressed into the groove.

In order to further improve the stability of the entire wind rotor, a diagonal tie rod is connected between the top of the vertical shaft and the upper support ring.

A tension spring is set on each tension support rod, one end of the tension spring is connected with the fixed wheel, and the other end is connected with the hollow round bar in the fan blade fixing mechanism.

The connection of the generator can be arbitrarily selected to be connected up and down the vertical axis of the structure. In this design, the connection through the top is the best connection method.

The utility model has the advantages of:

1. It is possible to use soft materials with toughness as fan blades, and various light thin plate materials can be used, such as: strong cloth, chemical fiber nylon material, thin steel plate, thin stainless steel, etc., which greatly reduces the cost of fan blades At the same time, the self-weight of the fan blade is reduced, and the purpose of driving the breeze with a lower number of stages is realized. Through the fan blade fixing mechanism designed on the fan blade frame, the fan blade can be easily replaced, and the maintenance is very convenient.

2. Since the design can be connected with soft wind blades, when the windward side receives wind, the windward angle can be increased to a certain extent, and when the leeward side is leeward, the area of the leeward side can be reduced, thereby increasing the speed of the wind rotor.

3. The wind blade structure of the wind generator can also be designed as mutually independent units, which are connected up and down to form a wind blade tower composed of several units, further increasing the effect of breeze starting, and driving a higher power generator.

Description of drawings

Fig. 1 is a structural view of the utility model.

Fig. 2 is a structural view of Fig. 1 when no fan blades are installed.

Fig. 3 is a structural view of the vertical shaft with the upper and lower fixed wheels installed.

Fig. 4 is a structural view of the connection of the fixed wheel, the tension support rod and the tension spring.

Fig. 5 is a structural view of the rim.

Fig. 6 is a structural view of the fan blade fixing mechanism arranged in the tension support rod.

In the figure: 1. Vertical shaft, 2. Fixed wheel disc, 3. Supporting rim, 4. Tension support rod, 5. Fan blade, 6. Screw sleeve, 7. Hollow round rod, 8. Groove, 9. Card Groove rod, 10, inclined stay rod, 11, fixing hole, 12, tension spring.

Detailed ways

The utility model is further described below in conjunction with accompanying drawing:

As shown in Figures 1, 2, and 3: the wind rotor of the vertical axis wind turbine with lightweight structure includes a vertical axis 1 and a plurality of blades 5 arranged on the vertical axis, wherein: the vertical axis 1 is provided with upper and lower The fixed roulette 2, the upper and lower support rims 3 are connected to the upper and lower fixed roulette 2 through uniformly distributed radial tension support rods 4, and each tension support rod 4 is in the radial direction of the rim. The included angle is about 10°～20°. There are support rod fixing holes 11 (as shown in Figures 4 and 5) on the edge of the fixed wheel 2 and the support rim 3, between the support rim 3 and the tension support rod 4. It can be connected and fixed by the screw sleeve 6 and the nut installed in the fixing hole 11. In order to further improve the stability of the whole wind wheel, a diagonal tie rod 10 is connected between the top of the vertical shaft and the upper support rim. A fan blade 5 made of flexible material is arranged between the upper and lower force support rods, and the flexible fan blade 5 is arranged between the upper and lower force support rods through a fan blade fixing mechanism. The hollow round rod 7 on the tensile support rod 4, the groove 8 provided on the outer wall of the hollow round rod and the slotted rod 9 pressed into the groove are composed (as shown in FIG. 6 ).

A tension spring 12 is set on each tension support rod 4, and the tension spring (12) is placed between the fixed wheel disc 2 and the hollow round bar 7 in the fan blade fixing mechanism (as shown in Figure 4), and the tension spring is set. The purpose is to be more convenient when replacing the fan blades.

Claims (7)

1, a kind of light structures vertical axis aerogenerator wind wheel, it comprises vertical shaft (1) and is arranged on a plurality of fan blades (5) on the vertical shaft, it is characterized in that: vertical shaft (1) is provided with upper and lower fixedly wheel disc (2), upper and lower support wheel rim (3) all is connected with upper and lower fixedly wheel disc (2) by the radiating type pulling force strut (4) that is evenly distributed, and every pulling force strut (4) all is 0 °～80 ° angles with the radial direction of wheel rim, is provided with fan blade (5) between upper and lower pulling force strut (4).

2, light structures vertical axis aerogenerator wind wheel according to claim 1 is characterized in that: fan blade (5) is that the light sheet material forms.

3, light structures vertical axis aerogenerator wind wheel according to claim 2, it is characterized in that: the light sheet material can be selected any one in powerful cloth, chemical fibre nylon material, sheet metal or the thin stainless steel.

4, light structures vertical axis aerogenerator wind wheel according to claim 1 and 2, it is characterized in that: fan blade (5) is arranged between the upper and lower pulling force strut (4) by the fan blade fixed mechanism.

5, light structures vertical axis aerogenerator wind wheel according to claim 4 is characterized in that: the fan blade fixed mechanism comprises the hollow pole (7) that is sleeved on the pulling force strut, be opened in the groove (8) on the hollow pole outer wall and the draw-in groove rod (9) that is fitted in the groove is formed.

6, light structures vertical axis aerogenerator wind wheel according to claim 1 is characterized in that: be connected with brace (10) between vertical shaft (1) top and upper support circle (3).

7, according to claim 1 or 4 described light structures vertical axis aerogenerator wind wheels, it is characterized in that: all be set with a draught spring (12) on every pulling force strut (4), draught spring (12) places between the hollow pole of fixedly wheel disc and fan blade fixed mechanism.

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