CN202628388U - Ship-shaped blade vertical shaft type wind generator - Google Patents

Abstract

The utility model relates to the technical field of power generation equipment, in particular to a ship-shaped blade vertical shaft wind power generator. Most of the high-power wind turbines in the prior art are horizontal-axis wind turbines. With the increase of the output power of the generator, the area of the blades and the fan increase, resulting in an increase in the degree of shaking of the fan, and the difficulty of hoisting, danger, and maintenance costs. also increased. The utility model includes a main shaft, a stabilizing shaft and multiple sets of blade groups horizontally installed on the main shaft. The angles projected by the blades in the horizontal plane are equal; The machine rotor corresponds to the generator stator. The utility model has the advantages of omnidirectional wind direction and unrestricted high wind speed, improves the utilization rate of wind energy and power generation efficiency, reduces the height of the fan, has better stability, is easy to repair and maintain, and overcomes the disadvantages of the prior art. Insufficient, so that the output power of the fan is further increased.

Description

Ship type blade vertical shaft wind turbine

technical field

The utility model relates to the technical field of power generation equipment, in particular to a ship-shaped blade vertical shaft wind power generator.

Background technique

With the increasing consumption of conventional energy and environmental problems, wind power generation has attracted widespread attention. In the prior art, wind turbines with a power greater than 3MW are mostly horizontal-axis wind turbines. Since the rated output power of the horizontal-axis wind turbine is proportional to the swept area, in order to increase the output power of the generator, it is necessary to The generating power of the horizontal axis wind turbine is increased by increasing the sweeping area of the blades, that is, increasing the blade area and the height of the fan. The height of existing horizontal axis wind turbines is even as high as 100 meters. Due to the limitation of material strength and its own weight, the large-scale development of horizontal axis wind turbines has the following problems:

(1) After the height of the fan increases, the sloshing degree of the fan increases, resulting in a narrowing of the available wind speed range. When the wind speed exceeds 25m/s, it must be shut down, resulting in a large waste of wind resources and the availability of the fan. reduce;

(2) The higher the height of the fan, the more difficult and dangerous the hoisting will be, and the hoisting cost will increase significantly;

(3) The higher the height of the fan, the more difficult the daily maintenance and the higher the maintenance cost;

(4) As the power and height of wind turbines increase, the cost of obtaining electric energy per kilowatt increases significantly, which is not competitive and cannot develop to higher power.

The vertical shaft fan has omnidirectionality and does not require a yaw device. The fan shaft and generator are all installed on the ground, which is easy to repair and maintain, with low manufacturing cost and good stability. However, the existing vertical shaft fans are limited by the shape of the blades, and the power of the fans is relatively small, and the power of a single unit does not exceed 2MW; the power of the fans increases, and the lateral thrust of the wind increases accordingly. It is difficult to increase the power of the fans in the prior art. further increase.

Contents of the invention

The purpose of the utility model is to provide a ship-shaped blade vertical shaft wind power generator, which overcomes the deficiencies in the prior art, reduces the height of the fan, improves the utilization rate of wind energy, and improves the power generation efficiency.

The technical scheme of the utility model is: including the fan frame, the generator stator, the generator rotor, the generator stator is installed in the fan frame; The shaft is assembled on the upper part of the main shaft, and the stabilizing shaft is connected and fixed to the ground through multiple steel cables;

The interior of the main shaft is a hollow structure, which is vertically assembled on the fan frame. Thrust bearings and guide bearings are installed between the main shaft and the fan frame; the lower part of the main shaft is equipped with a generator rotor, which corresponds to the generator stator;

One of the installation forms of the blade group is that each group of blade groups is composed of two blades and a shaft arm. The blade is assembled on one end of the shaft arm, and the other end of the shaft arm is provided with a connecting flange, which is inserted into the main shaft, and the connecting flange is connected by bolts. Connected together, the shaft arms are limited by the chuck, the blades are located on both sides of the main shaft and the direction of the wind-receiving surface is oppositely assembled; a worm is installed inside the main shaft, and the worms are respectively meshed with the worm gears on the shaft arms of each group of blade groups, and the other end of the worm Connect the control motor;

Another installation form of the blade group is the installation form of the blade group. Each group of blade groups consists of three blades and a shaft arm. The blade is assembled at one end of the shaft arm. The tail end of the shaft arm is provided with a bevel gear. The tail end is inserted into the main shaft, limited by the chuck, and positioned by the fixed sleeve; the inside of the main shaft is coaxially equipped with an adjustment rod, and there are multiple bevel gears on the adjustment rod, which are respectively connected with the cones at the end of the shaft arm of each blade group. gear meshing; the other end of the adjustment rod is connected to the control motor;

The included angles of the projections of the blades in the horizontal plane are equal.

Further, the blade is boat-shaped, hollow inside, triangular in cross-section, knife-hook-shaped at the end, one side of the concave surface is the wind-receiving surface, and the wedge-shaped side is the resistance surface.

Further, a lightning protection device and an anemometer are installed on the top of the stable shaft.

Further, the wind-receiving surface of the blade is provided with a plurality of drain holes, which communicate with the drain pipe inside the blade.

Further, the shaft arm and the main shaft are fitted through a sliding fit of a bearing pad or a rolling bearing.

The utility model has the following beneficial effects: the ship-shaped blade vertical shaft wind power generator greatly reduces the height of the fan, the hoisting operation is easy and safe, and the installation and daily maintenance costs are significantly reduced; by increasing the number of blade groups or increasing the length of the blades and The width can significantly increase the single-unit power, and the target single-unit power will reach more than 50MW; by adjusting the blade angle, it can adapt to any wind speed (that is, it does not need to be shut down at high wind speed), which improves the efficiency of wind energy utilization and significantly reduces the cost of obtaining unit power.

The content of the invention of the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is a top view of the assembly of the main shaft and the blade group in Embodiment 1 of the utility model;

Fig. 3 is a schematic diagram of the assembly of the shaft arm and the main shaft in Embodiment 1 of the utility model;

Fig. 4 is a schematic diagram of the blade and the shaft arm of Embodiment 1 of the utility model;

Fig. 5 is a cross-sectional view of the blade of Example 1 of the utility model;

Fig. 6 is the structural representation of the utility model embodiment 2;

Fig. 7 is a cross-sectional view of the blade of Embodiment 2 of the present utility model;

Figure 8 is a schematic diagram of the assembly of the third axis arm and the main shaft of the utility model embodiment;

Fig. 9 is a schematic diagram of a blade and a shaft arm according to Embodiment 3 of the present utility model.

Detailed ways

Among the figure: 1. Main shaft, 2. Stabilizing shaft, 3. Blades, 4. Fan frame, 5. Generator stator, 6. Shaft arm, 7. Chuck, 8. Adjusting rod, 9. Fixed sleeve.

Example 1

As can be seen from Fig. 1-Fig. 5, the utility model includes fan frame 4, generator stator 5, generator rotor, generator stator 5 is installed in fan frame 4; also includes main shaft 1, stable shaft 2 and horizontal installation There are four groups of blades on the main shaft 1; the stabilizing shaft 2 is assembled on the upper part of the main shaft 1; because the larger the main shaft 1 and the blades 3 of the wind turbine, the greater the lateral thrust of the wind force on the generator as a whole, the stabilizing shaft 2 passes through multiple steel The cable is connected and fixed to the ground to stabilize the main shaft and resist the influence of the lateral wind on the fan; the top of the stable shaft 2 is equipped with a lightning protection device and an anemometer;

The interior of main shaft 1 is a hollow structure, which is vertically assembled on fan frame 4. There are thrust bearings and guide bearings between main shaft 1 and fan frame 4; The main shaft 1, the stabilizing shaft 2 and the blade group have the same weight; the lower part of the main shaft 1 is equipped with a generator rotor corresponding to the generator stator 5;

Each set of blades consists of two boat-shaped blades 3 and shaft arms 6. The blades 3 are hollow inside, with an equilateral triangle cross section and a knife-hook shape at the end. One side is the resistance surface; the wind-receiving surface of the blade 3 is provided with a plurality of drainage holes, which are connected with the drain pipe inside the blade 3, and are used to remove the accumulated water of the blade when it is shut down in rainy and snowy weather; the blade 3 is assembled on the shaft arm 6 One end, the other end of the shaft arm 6 is provided with a connecting flange, and the ends of the two shaft arms 6 provided with the connecting flange are inserted into the main shaft 1 and connected together by bolts, so that the blades 3 are distributed on both sides of the main shaft 1 in the same horizontal plane. The direction of the wind-receiving surface is opposite; the shaft arm 6 and the main shaft 1 are matched by rolling bearings or bearing bushes, and are limited by the chuck 7 fixed on the shaft arm 6; a worm is installed inside the main shaft 1, and the shaft of each group of blades Arms 6 are provided with worm gears, and the worms are engaged with the worm gears of each group of blades respectively. The other end of the worm is connected with a control motor to adjust the blades to achieve the best working angle. The control motor is fixed inside the main shaft 1 and rotates with the main shaft 1; the cable enters the main shaft through the slip ring from the stable shaft 2 to connect to the control motor.

The projections of the first group and the second group of blade groups in the horizontal plane are perpendicular to each other, the projections of the third group and the fourth group of blade groups in the horizontal plane are mutually perpendicular, and the projections of the third group and the first group of blade groups in the horizontal plane The projection forms an included angle of 45 degrees; that is, the included angles of all the blades 3 projected on the horizontal plane are 45 degrees.

Example 2

It can be seen from Fig. 6-Fig. 7 that the difference between this embodiment and embodiment 1 is that according to the needs of the output power, 12 groups of blade groups are fixed on the main shaft of this embodiment; the section of the blade 3 is an isosceles triangle; The assembly of each group of blades is: the projections of the first group and the second group of blades in the horizontal plane are perpendicular to each other; the projections of the third group and the fourth group of blades in the horizontal plane are perpendicular to each other; the third group and the first group of blades The projections of the groups in the horizontal plane form an included angle of 45 degrees; the fifth-eighth and ninth-twelfth groups of leaf groups repeat the arrangement of the first-fourth group; the projections of all leaves in the horizontal plane are 45° .

Other structures of this embodiment are the same as those of Embodiment 1.

Example 3

It can be seen from Fig. 7-Fig. 9 that the difference between this embodiment and embodiment 1 is that the form of the blade group is that each group of blade groups is composed of three boat-shaped blades 3 and shaft arms 6, and the shaft arms 6 The tail end of the shaft arm 6 is provided with a bevel gear, and the tail end of the shaft arm 6 is inserted into the main shaft 1 to limit the position through the chuck 7 fixed on the shaft arm 6, and is positioned by the fixed sleeve 9 fixed on the inner wall of the main shaft; the inside of the main shaft 1 is the same as the main shaft The shaft is equipped with an adjustment rod 8, and the adjustment rod 8 is provided with a plurality of bevel gears, which are respectively engaged with the bevel gears at the end of the shaft arm 6 of each blade group; the other end of the adjustment rod 8 is connected to the control motor; The three blades 3 form 120° with each other in the same horizontal plane; the projections of the upper and lower adjacent two groups of blade groups in the horizontal plane form 60° with each other; the arrangement of each group of blade groups repeats the above sequence.

Other structures of this embodiment are the same as those of Embodiment 1.

It should be pointed out that the above detailed description of the technical solution of the utility model with the aid of preferred embodiments is illustrative rather than restrictive. Those of ordinary skill in the art can modify the technical solutions recorded in each embodiment on the basis of reading the description of the utility model, or perform equivalent replacements for some of the technical features, and these modifications or replacements do not make the corresponding technical solutions The essence departs from the scope of the technical solutions of the various embodiments of the present invention.

Claims (5)

1. a ship type blade vertical shaft type wind-driven generator comprises blower fan frame (4), generator unit stator (5), generator amature, and generator unit stator (5) is installed in the blower fan frame (4); It is characterized in that: comprise that also main shaft (1), stable axis (2) and level are installed in the many groups vane group on the main shaft (1); Stable axis (2) is assemblied in main shaft (1) top, and stable axis (2) is connected fixing with ground through many cable wires;

Main shaft (1) inside is hollow structure, vertically is assemblied on the blower fan frame (4), between main shaft (1) and the blower fan frame (4) thrust-bearing and guide bearing is housed; The bottom of main shaft (1) is equipped with generator amature, and is corresponding with generator unit stator (5);

One of installation form of vane group is that every group of vane group is made up of two blades (3) and armshaft (6); Blade (3) is assemblied in an end of armshaft (6); Armshaft (6) the other end is provided with adpting flange, and inserts in the main shaft (1), through bolt adpting flange is linked together; Armshaft (6) is spacing through chuck (7), and blade (3) is positioned at main shaft (1) both sides and wind-receiving face assembling in the opposite direction; Main shaft (1) inside is equipped with worm screw, worm screw respectively with the armshaft (6) of each group vane group on worm gear engagement, the other end of worm screw connects the control motor;

The another kind of installation form of vane group is that every group of vane group is made up of three blades (3) and armshaft (6); Blade (3) is assemblied in an end of armshaft (6); The tail end of armshaft (6) is provided with tapered gear; The tail end of armshaft (6) inserts in the main shaft (1), and is spacing through chuck (7), and through fixed cover (9) location; Inner and the coaxial adjustable lever (8) that is equipped with of main shaft of main shaft (1), adjustable lever (8) is provided with a plurality of tapered gears, respectively with the tapered gear engagement of each vane group armshaft (6) tail end; The other end of adjustable lever (8) connects the control motor;

Blade (3) is impartial at the angle of horizontal plane inner projection.

2. a kind of ship type blade vertical shaft type wind-driven generator as claimed in claim 1, it is characterized in that: described blade (3) is the ship type, inner hollow, the cross section is triangular in shape, and end is the cutter hook-type, and inner concave one side is a wind-receiving face, and wedge type one side is a resistance area.

3. a kind of ship type blade vertical shaft type wind-driven generator as claimed in claim 1, it is characterized in that: lightning arrester and anemoscope are equipped with in described stable axis (2) top.

4. a kind of ship type blade vertical shaft type wind-driven generator as claimed in claim 1, it is characterized in that: the wind-receiving face of described blade (3) is provided with a plurality of weep holes, and is communicated with the inner waste pipe of blade (3).

5. a kind of ship type blade vertical shaft type wind-driven generator as claimed in claim 1 is characterized in that: be slidingly matched through bearing shell between described armshaft (6) and main shaft (1) or rolling bearing cooperates.

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