CN202746104U - Resistance and lifting force combined type medium-size magnetic suspension wind driven generator - Google Patents

Abstract

The utility model discloses a lift-resistance compound medium-sized magnetic levitation wind power generator, which comprises a column tower, a generator motor, and blades. The generator motor includes a rotating part connected with the blade and driven to rotate by the blade, and also includes a connecting rotating part. and the blade bracket of the blade, the blade is a longitudinal plate, and is installed obliquely on the blade bracket, and the shape of the cross section of the blade is an airfoil section, so that under the action of the wind force, the blade not only generates resistance but also A lift can be generated, wherein the generated resistance drives the blades to rotate, and the generated lift can reduce the pressure of the blades on the rotating plate and reduce the centrifugal force when the blades rotate, which is more conducive to the stability of the rotation of the blades.

Description

Anti-lift compound medium-sized magnetic levitation wind turbine

technical field

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

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

The existing problems of wind power generators are: when the wind force is small, the blades are difficult to rotate and cannot drive the generator to generate electricity; and when the wind force is too strong, the blades rotate too fast and cannot maintain stable rotation . the

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

Utility model content

Aiming at the problems and deficiencies in the above-mentioned prior art, the purpose of this utility model is to provide a lift-resistance compound medium-sized magnetic levitation wind power generator that can adapt to various wind environments. the

In order to achieve the above purpose, the utility model anti-lift compound medium-sized magnetic levitation wind power generator 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 an external rotation auxiliary motor, the external rotation auxiliary motor The turn assist motor is provided with a rotating outer turn portion. the

Compared with the prior art, the external rotation auxiliary motor set in the utility model has three functions of driving, power generation and braking in the anti-lift compound medium-sized magnetic levitation wind power generator at the same time, which is suitable for the environment of the whole wind power generator. Performance and power generation efficiency have been significantly improved. the

In order to achieve the above purpose, the use method of the utility model anti-lift compound medium-sized maglev wind generator can adopt the following technical scheme: when the wind force is small, the blades are difficult to rotate or rotate slowly and cannot drive the generator motor to generate electricity, start The external rotation auxiliary motor accelerates the rotation of the blades; in addition, when there is a certain wind force or the blade speed is sufficient, the external rotation auxiliary motor is used as the second motor for generating electricity to generate electricity; Next, make the external rotation part of the external rotation auxiliary motor produce a rotation opposite to the rotation direction of the blade, and provide certain braking for the blade. the

Compared with the prior art, the external rotation auxiliary motor set in the utility model has three functions of driving, power generation and braking in the anti-lift compound medium-sized magnetic levitation wind power generator at the same time, which is suitable for the environment of the whole wind power generator. Performance and power generation efficiency have been significantly improved. the

Further, the blade is connected to the rotating part through a blade bracket. the

Further, the blade support includes a first support located in a vertical plane and a second support connected to the first support and extending sideways, the second support forming a triangular structure. the

Further, it also includes a fixed plate fixed on the column tower and a rotating plate matched with the generator motor; the rotating plate is connected to the blade; a magnetic levitation device is provided between the fixed plate and the rotating plate; the generator motor It includes a first cylinder carried and fixed on a fixed plate and a cylindrical rotating part that rotates around the first cylinder. The outer surface of the rotating part is provided with a number of splines, and at least one is fixed on the rotating plate. The interference part is interposed between the two splines and interferes with the two splines. the

Further, 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 cooperating with the ball; the seat and the guide rail are installed on the fixed plate or the rotating plate. the

Further, when the wind force is small and the blades are difficult to rotate or rotate slowly and cannot drive the generator motor to generate electricity, start the external rotation auxiliary motor to accelerate the rotation of the blades; in addition, when there is a certain wind force or the blades rotate at a sufficient speed, the The external rotation auxiliary motor is used as the second motor for generating electricity to generate electricity; when the wind force is too high and the blade speed is too fast, the external rotation part of the external rotation auxiliary motor is rotated in the opposite direction to the rotation direction of the blades, and the blades Provide some braking. the

Further, part of the electricity generated by the generator motor is provided to the outrunning auxiliary motor to drive the blades to rotate

Description of drawings

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

Fig. 2 is a top view schematic diagram of the lift-resistance compound medium-sized magnetic levitation wind power generator of the utility model. the

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

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

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

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

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the utility model, it should be understood that following specific embodiment is only for illustrating the utility model and is not intended to limit the scope of the utility model, after having read the utility model, those skilled in the art The modifications made by personnel to various equivalent forms of the utility model all fall within the scope defined by the appended claims of the present application. the

Please refer to Figs. 1 to 3, the utility model discloses a lift-resistance compound medium-sized magnetic levitation wind power generator, including a column tower 20 for supporting other components, a fixed plate 30 fixed on the top of the column tower 20, a bearing And be fixed on the generator motor 40 on the fixed plate 30, the rotating plate 50 that cooperates with the generator motor 40, the external rotation auxiliary motor 60 that is located on the generator motor 40, the blade support that connects the rotating part 42 and the rotating plate 50 71. The blade 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. the

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 rotational 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. the

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'. the

Claims (7)

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 driven to rotate by blade, it is characterized in that: also includes outer A turn assist motor is provided with an outturn portion that rotates. 2. A lift-resistance compound medium-sized magnetic levitation wind power generator according to claim 1, characterized in that: the blades are connected to the rotating parts through blade brackets. 3. A lift resistance type compound medium-sized maglev wind power generator as claimed in claim 2, characterized in that: said blade bracket comprises a first bracket positioned in a vertical plane and a first bracket connected to the first bracket and extended to the side The second bracket forms a triangular structure. 4. A lift resistance type compound medium-sized magnetic levitation wind power generator as claimed in claim 1, characterized in that: it also includes a fixed plate fixed on the column tower, a rotating plate matched with the generator motor; the rotating plate Connected to the blade; 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 and a cylindrical rotating part that rotates around the first column, The outer surface of the rotating part is convexly provided with several splines, and at least one interference part is fixed on the rotating plate, and the interference part is interposed between the two splines and interferes with the two splines. 5. A lift resistance type compound medium-sized magnetic levitation wind power generator as claimed in claim 4, characterized in that: a ball device is arranged between the fixed plate and the rotating plate, and the ball device includes a ball, a supporting ball The seat and the guide rail matched with the ball; the seat and the guide rail are installed on the fixed plate or the rotating plate. 6. The method of using the anti-lift compound medium-sized maglev wind power generator according to claim 1, characterized in that: when the wind force is small and the blades are difficult to rotate or rotate slowly and cannot drive the generator motor to generate electricity, start The externally rotating auxiliary motor accelerates the rotation of the blades; in addition, when there is a certain amount of wind or the rotational speed of the blades is sufficient, the externally rotating auxiliary motor is used as the second motor for generating electricity to generate electricity; Next, make the external rotation part of the external rotation auxiliary motor produce a rotation opposite to the rotation direction of the blade, and provide certain braking for the blade. 7. The method of using the anti-lift compound medium-sized maglev wind power generator according to claim 6, wherein a part of the electric power generated by the generator motor is provided to the external rotation auxiliary motor to drive the blades to rotate. the

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