CN203050992U - Paddle blade self-control paddle distance changing device of wind power generator - Google Patents

Abstract

The utility model provides a paddle blade self-control paddle distance changing device of a wind power generator and belongs to the technical field of wind power generating. The paddle blade self-control paddle distance changing device comprises paddle blades, a connecting shaft, a steering motor, a shell body, cone-shaped gears and a transmission shaft, wherein the connecting shaft is installed at the upper end and the lower end of the shell body, the paddle blades are installed at one end of the connecting shaft through a flange, one of the cone-shaped gear is installed at the other end of the connecting shaft, the steering motor is installed on the left side of the shell body, the other cone-shaped gear is installed on the rotating shaft of the steering motor, and the transmission shaft is installed on the right side of the shell body. The cone-shaped gear on the rotating shaft of the steering motor is meshed with the cone-shaped gear on the connecting shaft. The steering motor is a planetary pinwheel reducer with a supply voltage of 12 volts, and the outer shape of the shell body is a cone. The paddle blade self-control paddle distance changing device can adjust paddle distance of the paddle blades automatically to adapt to different environments and wind speeds, improves electricity generating efficiency to the utmost, and at the same time ensures that the paddle blades work stably under unstable wind power and are protected from damage under a high wind speed.

Description

Wind turbine blade self-control pitch change device

technical field

The utility model relates to a self-control pitch variable device for blades of a wind power generator, which belongs to the technical field of wind power generation. the

Background technique

my country is one of the countries with abundant wind resources in the world. According to statistics, the total amount of exploitable wind energy resources in China is about 1 billion kilowatts, among which Qinghai, Gansu, Xinjiang and Inner Mongolia have abundant exploitable wind energy reserves, which are the regions with the most abundant wind energy reserves in mainland China. Offshore wind energy resources are about three times that of land. At present, my country is actively stepping up the localization of wind power generation equipment, reducing the cost of equipment production and wind farm construction, and has made some progress. The 600-kilowatt unit has a certain production capacity; because the traditional design of wind power generators is based on the cross-section of each blade The goal is to have the maximum power coefficient at the design wind speed, and the pitch of the blades is not adjustable, which is aimed at a stable ideal wind speed; however, in practice, due to the uncertainty and instability of the wind, the wind turbine Running away from the design point, the efficiency of the wind turbine is not high and it is easy to be damaged, which is an urgent problem to be solved at present. the

Contents of the invention

The purpose of the utility model is to provide a wind power generator blade automatic control variable pitch device. the

The problem to be solved by the utility model is that the efficiency of the existing non-adjustable pitch wind power generator is not high and it is easy to be damaged. the

For realizing the purpose of this utility model, the technical scheme that this utility model adopts is:

Wind turbine blade self-control pitch control device, including blade, connecting shaft, steering motor, housing, bevel gear and transmission shaft, the upper and lower ends of the housing are equipped with connecting shafts, and one end of the connecting shaft is installed with a paddle through the flange. leaf, the other end is equipped with a bevel gear, the housing left side is equipped with a steering motor, a bevel gear is installed on the rotating shaft of the steering motor, and a transmission shaft is installed on the housing right side.

The bevel gear on the rotating shaft of the steering motor meshes with the bevel gear on the connecting shaft. the

The steering motor is a planetary pin gear motor with a power supply voltage of 12V; the outer shape of the housing is conical. the

The utility model has the advantages: the device can automatically adjust the pitch of the blades to adapt to different environments and wind speeds, maximize the power generation efficiency, and at the same time ensure stable work under unstable wind power and protect the blades under higher wind speeds. The blades are not damaged and should have broad market prospects. the

Description of drawings

Fig. 1 is the structural representation of the utility model wind power generator blade self-control variable pitch device;

In the figure: 1. Propeller blade 2. Connecting shaft 3. Steering motor 4. Housing 5. Bevel gear 6. Transmission shaft.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further. the

As shown in Figure 1, the blade self-control pitch variable device of the wind power generator includes a blade 1, a connecting shaft 2, a steering motor 3, a housing 4, a bevel gear 5 and a transmission shaft 6, and the upper and lower ends of the housing 4 are installed There is a connecting shaft 2, one end of the connecting shaft 2 is installed with a paddle 1 through a flange, the other end is installed with a bevel gear 5, a steering motor 3 is installed on the left side of the housing 4, and a bevel gear 5 is installed on the rotating shaft of the steering motor 3 , the transmission shaft 6 is installed on the right side of the housing 4 . the

The bevel gear 5 on the rotating shaft of the steering motor 3 and the bevel gear 5 on the connecting shaft 2 mesh with each other, so that the rotation of the steering motor 3 can drive the blade 1 to rotate and change the pitch. the

The steering motor 3 is a planetary pin gear motor, and the power supply voltage is 12V, which is used to provide rotational power for changing the pitch. the

The shell 4 is conical in shape to reduce resistance. the

The usage method of the utility model, when the wind speed in the field is very large, the rotation of the steering motor 3 drives the blade 1 to rotate to reduce the pitch, thereby preventing the generator from being damaged due to overload; when the wind speed in the field becomes small, the rotation of the steering motor 3 drives The blades 1 are rotated to increase the pitch, thereby improving the power generation efficiency and adapting to different wind speeds. the

Claims (4)

1. the wind power generator oar blade automatic control becomes slurry apart from device, comprise blade (1), coupling shaft (2), steer motor (3), housing (4), angular wheel (5) and transmission shaft (6), it is characterized in that: described housing (4) two ends up and down is equipped with coupling shaft (2), coupling shaft (2) one ends are equipped with blade (1) by flange, the other end is equipped with angular wheel (5), housing (4) left side is equipped with steer motor (3), angular wheel (5) is installed in the rotating shaft of steer motor (3), and housing (4) right side is equipped with transmission shaft (6).

2. wind power generator oar blade automatic control according to claim 1 becomes slurry apart from device, and it is characterized in that: the angular wheel (5) in described steer motor (3) rotating shaft and the angular wheel (5) on the coupling shaft (2) are meshing with each other.

3. wind power generator oar blade automatic control according to claim 1 becomes slurry apart from device, it is characterized in that: described steer motor (3) is planet pinwheel reducing motor, and power supply voltage is 12V.

4. wind power generator oar blade automatic control according to claim 1 becomes slurry apart from device, it is characterized in that: described housing (4) profile is conical.

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