CN102748232B - Drag-lift type composite medium-sized magnetic suspension wind driven generator - Google Patents

Abstract

The invention discloses a lift-resistance compound medium-sized magnetic levitation wind power generator, which includes a column tower, a generator motor, and blades. The generator motor includes a rotating part connected to the blade and driven to rotate by the blade, and also includes The fixed plate on the top and the rotating plate matched with the generator motor; the rotating plate is connected to the blades; a magnetic levitation device is provided between the fixed plate and the rotating plate; the generator motor includes a The first cylinder and the cylindrical rotating part that rotates around the first cylinder, the outer surface of the rotating part is provided with splines protruding outward, and at least one interference part is fixed on the rotating plate, and the interference part is inserted in the The two splines mentioned above interfere with the two splines; the rotating plate shares the weight of the rotating part; the rotating part of the generator motor is equipped with splines to cooperate with the interference part on the rotating plate. The structure is simple and practical, which effectively reduces the Manufacturing and assembly costs.

Description

Anti-lift compound medium-sized magnetic levitation wind turbine

technical field

The invention relates to the field of new energy, in particular to a wind power generator.

Background technique

Under the general trend of global energy saving, environmental protection and sustainable development, the development of wind turbines has been vigorously promoted. Existing wind generators generally include blades for being rotated by the wind, a rotating part (generator rotor) driven by the blades, and a generator stator. The blades of the generator rotate to drive the rotating part to generate electricity. The existing wind power generator also includes a control system, a cooling element for cooling the generator, an anemometer, a wind vane, and the like.

The problem existing in the existing wind power generator is: the rotating part of the generator bears the weight of the blades, which makes the rotation of the rotating part difficult. If other supporting structures are used to share the weight carried by the rotating part, there will be problems with the cooperation between the generator and the rest. A problem with a complex structure.

Therefore, a new technical solution is needed to solve the above problems.

Contents of the invention

Aiming at the problems and deficiencies in the above-mentioned prior art, the object of the present invention is to provide a drag-resistance type composite medium-sized magnetic levitation wind power generator with easy rotation of the generator rotating part and simple structure.

In order to achieve the above object, the anti-lift type compound medium-sized magnetic levitation wind power generator of the present invention can adopt the following technical scheme:

A lift-resistance compound medium-sized maglev wind power generator, comprising a column tower, a generator motor, and blades. The generator motor includes a rotating part connected to the blades and driven to rotate by the blades, and also includes a fixed shaft fixed on the column tower. plate, a rotating plate matched with the generator motor; the rotating plate is connected to the blades; a magnetic levitation device is provided between the fixed plate and the rotating plate; the generator motor includes a first column carried and fixed on the fixed plate Body and a cylindrical rotating part that rotates around the first cylinder. The outer surface of the rotating part is provided with splines protruding outward. At least one interference part is fixed on the rotating plate, and the interference part is inserted in the two splines. between the keys and interfere with the two splines.

Compared with the prior art, the present invention is connected with the blade by setting the rotating plate, and the rotating plate interferes with the spline on the rotating part of the generator motor through the interference part, so that when the blade rotates, the rotation of the generator motor is driven by the rotating plate The rotating part rotates to generate electricity, and the rotating plate can share the weight carried by the rotating part at the same time; the magnetic levitation device is arranged between the fixed plate and the rotating plate, which makes the rotation of the rotating plate more efficient and wear-free, and solves the need for rotation. Part and the bearing problem of the fan blade; and the rotating part of the generator motor in the present invention is provided with splines to cooperate with the interference part on the rotating plate, the structure is simple and practical, and the manufacturing and assembly costs are effectively reduced.

Description of drawings

Fig. 1 is a structural schematic diagram of the anti-lift compound medium-sized magnetic levitation wind power generator of the present invention.

Fig. 2 is a schematic top view of the anti-lift compound medium-sized magnetic levitation wind power generator of the present invention.

FIG. 3 is a schematic diagram of cooperation of the generator motor, the fixed plate and the rotating plate in FIG. 1 .

FIG. 4 is a schematic structural view of the ball device in FIG. 1 .

FIG. 5 is a schematic top view of the generator motor in FIG. 1 .

Fig. 6 is a top view of a spline sleeve used in another embodiment.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should understand that following specific embodiment is only for illustrating the present invention and is not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand the present invention Modifications in various equivalent forms fall within the scope defined by the appended claims of the present application.

Referring to Figures 1 to 3, the present invention discloses a lift-resistance compound medium-sized maglev wind power generator, which includes a column tower 20 for supporting other components, a fixed plate 30 fixed on the top of the column tower 20, a bearing and The generator motor 40 fixed on the fixed plate 30, the rotating plate 50 matched with the generator motor 40, the external rotation auxiliary motor 60 arranged on the generator motor 40, the blade bracket 71 connecting the rotating part 42 and the rotating plate 50, The vane 72 installed on the outside of the bracket 71 . A magnetic levitation device 31 and a ball device 32 for auxiliary support are provided between the fixed plate 30 and the rotating plate 50 . The setting of the magnetic levitation device 31 can make the rotating plate 50 be carried on the fixed plate 30 by the magnetic levitating device 31, and when the rotating plate 50 rotates, the frictional force generated by the magnetic levitating device 31 is so small that it can be ignored, so that the rotation of the rotating plate 50 is more stable. Efficient and wear-free. The generator motor 40 includes a first cylinder 41 carried and fixed on the fixing plate 30 and a cylindrical rotating portion 42 rotating around the first cylinder 41 . The outer surface of the rotating portion 42 is protrudingly provided with splines 43 , and in this embodiment, 10 splines 43 are provided. And the 10 splines are evenly distributed on the outer surface of the rotating part 42 . At least one interference part 51 is fixed on the rotating plate 50. The interference part 51 is inserted between the two splines 43 and interferes with the two splines 43. When the blade 72 rotates, the blade 72 drives the blade bracket 71 and The rotating plate 50 rotates, so that the interference part 51 fixed on the rotating plate 50 rotates accordingly and drives the rotating part 42 to rotate through the interference with the spline 43, so that the generator motor 40 works to generate electricity. The blade 72 is a long plate, and is installed on the blade bracket 71 obliquely, and the shape of the cross section of the blade 72 is an airfoil section (the shape of the wing section of the aircraft), so that under the action of the wind, the The blades 72 not only generate resistance but also generate lift, wherein the generated resistance drives the blades 72 to rotate, and the generated lift can reduce the pressure of the blades 72 on the rotating plate 50 and the centrifugal force when the blades 72 rotate becomes smaller, which is more conducive to the rotation of the blades 72. Rotational stability. The blade support 71 includes a first support 711 located in a vertical plane and a second support 712 connected to the first support 711 in a vertical plane and extending sidewards. The second support 712 forms a triangular structure to improve the blade. The strength of bracket 71. Please refer to FIG. 4 , the ball assembly 32 includes a ball 321 , a seat 322 supporting the ball 321 , and a guide rail 323 cooperating with the ball 321 . The seat 322 and the guide rail 323 are optionally installed on the fixed plate 30 or the rotating plate 50 . The ball device 32 is disposed on the periphery of the magnetic levitation device 31 to assist in providing support between the fixed plate 30 and the rotating plate 50 . In this embodiment, the blade bracket 71 can also be connected with the interference part 51 and the rotating plate 50 to improve the overall strength.

Referring to FIGS. 1 to 3 again, the external rotation auxiliary motor 60 includes a second cylinder 61 mounted on the first cylinder 41 and an external rotation portion 62 rotating around the second cylinder 61 . The use method and function of the external rotation auxiliary motor 60 in this wind power generator are: when the wind force is small, the blades 72 are difficult to rotate or rotate slowly and cannot drive the generator motor 40 to generate electricity, the external rotation auxiliary motor 60 can be started The blades 72 are given accelerated rotation. Due to the adoption of the magnetic levitation device 31, when the blade 72 accelerates and rotates, it is easy to form inertia to generate electricity that can drive the generator motor 40 to rotate, and a small part of the electricity generated by the generator motor 40 is provided to the external rotation auxiliary motor 60. The blades 72 can be accelerated, so the external rotation auxiliary motor 60 can be installed to provide power to the blades 72 to accelerate the rotation when the wind force is small, so as to still generate electricity when the wind force is small. In addition, when there is a certain amount of wind force or the rotation speed of the blades 72 is sufficient, the externally rotating auxiliary motor 60 can also generate electricity as the second motor for generating electricity, which further increases the power generation efficiency and power generation capacity of the entire wind power generator. And under the situation that the blade 72 rotating speed is too fast when the wind force is too fast, the rotation of the blade 72 is difficult to keep stable because of the excessively fast rotating speed, and the situation of swinging occurs. The rotation direction of the blade 72 is opposite to that of the blade 72, thereby providing a certain degree of braking to the blade 72, reducing the rotation speed of the blade 72 and making the rotation of the blade 72 more stable. To sum up, the external rotation auxiliary motor 60 has three functions of driving, power generation and braking in the wind power generator, which significantly improves the environmental adaptability and power generation efficiency of the whole wind power generator.

In the present invention, the outer surface of the rotating part 42 of the generator motor 40 is provided with a spline 43, so that the rotating part 42 is directly driven by the spline 43 without additional transmission device. The integration of the spline drive and the generator motor 40 reduces the number of components, reduces the manufacturing cost, improves the assembly efficiency, and can reflect the advantage of miniaturization at the same time. In this embodiment, the interference part 51 fixed on the rotating plate 50 is used to cooperate with the spline 43, while in other embodiments, the spline sleeve 51' and the spline 43 as shown in Fig. 5 and Fig. 6 can be used. fit, and the interference part is regarded as the interference part 52' inside the spline sleeve 51'.

Claims (1)

1. A lift-resistance type composite medium-sized magnetic levitation wind-driven generator, comprising column tower, generator motor, blade, described generator motor comprises the rotating part that is connected with blade and drives rotation by blade, it is characterized in that: also includes fixing The fixed plate on the column tower and the rotating plate matched with the generator motor; the rotating plate is connected to the blade; a magnetic levitation device is arranged between the fixed plate and the rotating plate; the generator motor includes a bearing and is fixed on a fixed The first cylinder on the plate, the rotating part is cylindrical and rotates around the first cylinder, the outer surface of the rotating part is provided with splines, and at least one interference part is fixed on the rotating plate. The part is interposed between the two splines and interferes with the two splines; and the shape of the cross section of the blade is an airfoil section; it also includes an outturn auxiliary motor, which is provided with a rotating outturn part; A ball device is provided between the fixed plate and the rotating plate, and the ball device includes a ball, a seat supporting the ball and a guide rail matched with the ball, the seat and the guide rail are installed on the fixed plate or the rotating plate; the blades pass through The blade bracket is connected to the interference part; the blade bracket includes a first bracket located in a vertical plane and a second bracket connected to the first bracket and extending to the side, the second bracket forms a triangular structure; a spline sleeve is provided Cooperate with splines; there are 10 splines, and the 10 splines are evenly distributed on the outer surface of the rotating part.