WO2014082534A1

WO2014082534A1 - Wind power generator

Info

Publication number: WO2014082534A1
Application number: PCT/CN2013/087287
Authority: WO
Inventors: 李台
Original assignee: 佛山市顺德区风源能源科技有限公司
Priority date: 2012-11-27
Filing date: 2013-11-18
Publication date: 2014-06-05
Also published as: CN202971045U; CN104797812A

Abstract

Disclosed is a wind power generator, wherein a yaw device thereof is connected to a generator main shaft (3) via a "7"-shaped rocker arm (10); a straight arm (101) of the rocker arm is provided with a through-groove (101a); a cross arm (102) of the rocker arm is provided with an insertion hole (102a); a yawing rotary seat (2) is provided with a connecting arm (201), which connecting arm (201) is inserted into the through-groove (101a) and enables the rocker arm (10) to be connected in series with the connecting arm (201) via a round pin (11); one end of the generator main shaft (3) is fixedly connected in the insertion hole (102a) of the cross arm (102) of the rocker arm, and the other end thereof is fixedly connected to a coil plate (4), the inner and outer side of the coil plate are respectively coaxially provided with a driving and driven magnetic steel plate (5, 6); and the driving magnetic steel plate (5) is sheathed onto the main shaft (3) via a front bearing (12), a rear bearing (13), a bearing inner ring (14, 16), a bearing outer ring (15, 17) and a bearing inner spacer bush (18), etc., and the driven magnetic steel plate (6) is fixedly connected to the drive magnetic steel plate (5) in one piece via a non-magnetic U-shaped connecting block (22). The wind power generator can automatically adjust the frontal area and force-bearing areas of a wind wheel thereof according to the wind speed, such that the damage to the generator due to the strong wind can be avoided. Furthermore, the wind power generator has the advantages of a low starting wind power, long service life, and low manufacturing costs, etc.

Description

Wind Turbines

Technical field

The invention relates to a power generation device, and in particular to a wind power generator.

Background technique

A wind turbine is a power generation device that uses natural wind to drive blades that drive the generator to produce electrical energy.

The power generating device of the conventional wind power generator is generally a barrel-shaped structure and adopts a radial magnetic flux mode. The structure is mainly composed of a rotor and a stator, and a coil winding is arranged on the stator, and a magnetic steel is arranged on the rotor. When the wind turbine is working, the wind wheel drives the rotor to rotate in the stator. The cutting magnetic field movement is performed to generate an induced electromotive force, which is drawn into the circuit through the terminal and generates a current. The main drawback of this type of wind turbine is that the cogging effect between the rotor and the stator increases the starting torque of the generator and the requirement for starting the wind is high, which greatly limits the application of the wind turbine. range.

In order to eliminate the adverse effects of the cogging on the wind turbine and reduce the wind turbine's requirements for starting the wind to provide the most suitable wind turbine, a wind turbine without iron core structure has been developed. The wind turbine adopts an axial magnetic flux mode. The coil rotor and the magnetic steel disc are used to replace the original rotor and the stator. The power generating device is mainly composed of a coaxial coil coil, an active magnetic steel disc and a driven magnetic steel disc, and the coil disc is sleeved on the main shaft. The driven magnetic steel discs are respectively fixed on the main shafts on both sides of the coil disk surface; the coil coils are provided with coil windings, and the opposite magnetic plates of the main and driven magnetic steel discs are provided with magnetic steels of opposite polarities to form magnetic fluxes; The generator wind wheel formed by the blade disk and the blade mounted on the blade disk is also fixed on the generator main shaft; when the wind power generator is working, the wind wheel rotates under the driving of the wind, and drives the generator main shaft to be fixed thereon The main and driven magnetic steel plates rotate together, and the coil disk moves the magnetic flux between the main and driven magnetic steel plates on both sides thereof to generate a magnetic field of action, thereby generating an induced electromotive force on the coil disk, and the electromotive force is generated through the connection terminal. After being taken out and connected to the loop, a current is generated. Compared with the traditional radial magnetic ventilation power generator, the wind power generator adopts the axial magnetic flux mode, and since the coil disk is made of non-magnetic non-conductive material, when the main When the driven magnetic steel disc rotates against the coaxially disposed coil disc, there is no cogging effect between the two magnetic steel discs, which eliminates the cogging effect of the cogging effect on the generator and greatly reduces the start-up. Wind requirements so that the generator can be adapted to wind

Smaller environment. However, this type of wind turbine still has the following defects:

1. It is impossible to resist the attack of strong winds. Since the windward surface of the wind turbine of this type of wind turbine is always perpendicular to the axis of the main shaft, the windward and the stressed surface of the wind blade are always unchanged. When the wind is strong, the wind's oncoming thrust on the blade increases sharply, and the blade is easy to be made. Breaking, or causing the generator voltage to be too high, burning the windings or other internal circuits;

2. The wind power requirement is still high. Since the main shaft of the wind turbine and the inner ring of the main shaft bearing are tightly coupled and rotated together, the starting resistance torque of the wind wheel is relatively large, and the requirement for starting the wind is still high;

3. The rotating parts such as the main shaft have a short service life. Since the wind turbine main shaft rotates with the wind wheel, the high speed rotation of the main shaft under strong wind easily causes accelerated wear of the relevant components and shortens the service life thereof;

4. High manufacturing costs. This type of wind turbine is provided with a separate blade disk, which increases the complexity of the structure and the manufacturing cost.

Summary of the invention

In view of the above defects of the existing wind power generator without iron core structure, the present invention discloses a wind power generator, which can automatically adjust the attitude of the wind wheel under strong wind conditions and maintain its normal working state. Low starting wind requirements, wide application range and longer service life.

In order to achieve the above object, the technical solution adopted by the present invention is as follows:

A wind power generator includes a generator main shaft, a yaw device, a conductive device, and a generator and a wind wheel disposed on the main shaft of the generator; the yaw device includes a yaw fixed seat, and the top surface of the yaw fixed seat is screwed together a yaw rotary seat, a rudder rudder fixed to the rear side of the yaw rotary seat, and a tail rudder plate fixed to the tail rudder; the generator is a coil disk coaxially disposed on the generator main shaft, and an active magnetic field The steel plate and a driven magnetic steel plate are formed. The main and driven magnetic steel plates are respectively disposed on the front and rear sides of the coil disk, and the coil windings are arranged on the disk surface of the coil disk, and the facing surfaces of the main and driven magnetic steel plates are opposite. a plurality of pairs of magnetic steels of opposite polarity are uniformly disposed; the conductive device comprises a conductive copper ring disposed on the yaw fixed seat, a generator output power line for connecting the coil winding and the conductive copper ring, and the conductive copper The output end of the ring is connected to the output power line for external current delivery.

The wind power generator further includes a "7"-shaped rocker arm connecting the generator main shaft and the yaw rotating base, the rocker arm is composed of a rocker arm straight arm and a rocker arm cross arm, and the rocker arm straight arm has a forward and backward direction The through slot has an axial insertion hole at the front end of the rocker arm.

A connecting arm is inserted into the slot, and the connecting arm is disposed on the front side of the yaw rotating base. And perpendicular to the central axis of the yaw rotary seat; the two sides of the connecting arm and the through slot are provided with corresponding pin holes, and a round pin passes through the pin hole to sleeve the rocker arm on the connecting arm.

The axial plug hole is inserted and the generator main shaft is fixed by screws.

As a further improvement, the front and rear slots of the through slot are respectively provided with front and rear head limit ports, and the front and rear head limit ports limit the rocker arm to The round pin is turned upside down in the range of 0-90°; when the rocker is turned up to 90°, the rear head limit port touches the top surface of the connecting arm and restricts the rocker arm from turning up again; the rocker arm is turned down to 90° When the front head limit port will

Support on the top surface of the connecting arm so that it does not fall down.

As a further improvement, the coil disk is sleeved and fixed on the generator main shaft by screws; the active magnetic steel plate is sleeved on the generator main shaft outside the coil plate, and the front and rear bearings are arranged in the central shaft hole, front, The inner and outer sides of the rear bearing are respectively provided with a bearing inner ring and a bearing outer ring. The bearing inner sleeve is arranged between the inner ring of the bearing of the front and rear bearings; the front and rear apertures of the central shaft hole of the active magnetic steel plate are respectively provided with front and rear glandes, and the front and rear glands are respectively fixed on the active The front and rear sides of the magnetic steel disk; the driven magnetic steel disk is disposed on the inner side of the coil disk, and passes through several The U-shaped connecting block is fixedly connected to the active magnet steel disk to form the same rotating body with respect to the coil disk with the active magnetic steel disk.

As a further improvement, the disk hub of the active magnet steel disk is fixed with a blade disk; the blade disk is provided with a blade mounting arm, and the blade mounting arm is provided with blades, thereby forming a wind wheel formed by the blade disk and the blade.

As a further improvement, the coil disk is sleeved and fixed on the generator main shaft by screws; the active magnetic steel plate is sleeved on the generator main shaft inside the coil plate, and the front and rear bearings are arranged in the central shaft hole, front, The inner and outer sides of the rear bearing are respectively provided with a bearing inner ring and a bearing outer ring. A bearing inner spacer is arranged between the inner ring of the bearing of the front and rear bearings, and an air gap spacer is arranged between the coil disk and the inner spacer of the bearing, and a pressure cover is arranged outside the air gap spacer, and the pressure cover is fixed to the active magnetic Steel disc; the driven magnetic steel disc is disposed on the outer side of the coil disc, It is fixedly connected to the active magnet steel disk by a plurality of U-shaped connecting blocks to form the same rotating body with respect to the coil disk with the active magnetic steel disk.

The generator main shaft is provided with an axial through hole, and the generator output power line is connected to the coil winding and the conductive copper ring through the axial through hole.

As a further improvement, the disk periphery of the active magnetic steel disk is provided with a blade mounting arm. Blades are provided on the blade mounting arms to form a wind wheel formed by the active magnetic steel disk and the blades.

As a further improvement, the U-shaped connecting block is composed of a non-magnetic material.

The beneficial effects of the invention are:

1. The invention utilizes a rocker arm to connect the yaw device and the generator main shaft, and the rocker arm can make the wind wheel provided on the main shaft of the generator within the range set by the two limit ports, according to the strength of the wind. The up and down swing automatically adjusts its windward attitude: when the wind speed exceeds the set value, the wind wheel is turned upside down to reduce the windward force area of the wind wheel, and the rotational speed of the wind wheel is reduced, so that the blade can also be effective in a strong wind environment. Protection does not damage, but also prevents the generator from burning due to excessive speed and high voltage.

2. The invention changes the traditional working mode of the original ironless core wind turbine with the wind wheel driving the generator main shaft and the rotor body with the magnetic steel, but adopts the wind wheel to drive the main and driven magnetic steel plates. Rotating, and the generator main shaft is fixed and working; because the outer ring of the bearing rotates, the inner ring of the bearing is fastened on the main shaft of the generator without rotation, thereby increasing the starting torque, reducing the requirement for starting the wind, and expanding The scope of application of the generator;

3. The working mode of the generator main shaft not rotating according to the present invention relatively increases the strength of the generator main shaft and prolongs the service life of the related rotating parts such as the main shaft.

4. Embodiment 2 of the present invention By adopting the method of installing the blades on the active magnetic steel plate, the original blade disk is eliminated, which is advantageous for simplifying the structure and saving cost.

DRAWINGS

1 is a schematic overall structural view of Embodiment 1 of the present invention;

Figure 2 is a longitudinal cross-sectional view showing a first embodiment of the present invention;

3 is a schematic structural view of a main and driven magnetic steel disc according to Embodiment 1 of the present invention;

4 is a schematic structural view 1 of a rocker arm according to Embodiment 1 of the present invention;

Figure 5 is a second schematic structural view of a rocker arm according to Embodiment 1 of the present invention;

6 is a schematic diagram of a flipped state according to Embodiment 1 of the present invention;

Figure 7 is a schematic view showing the overall structure of a second embodiment of the present invention;

Figure 8 is a longitudinal cross-sectional view showing a second embodiment of the present invention;

9 is a schematic structural view of an active magnetic steel disk according to Embodiment 2 of the present invention;

Figure 10 is a schematic structural view of a driven magnetic steel disk according to Embodiment 2 of the present invention;

Figure 11 is a schematic structural view 1 of a rocker arm according to Embodiment 2 of the present invention;

12 is a second schematic structural view of a rocker arm according to Embodiment 2 of the present invention;

FIG. 13 is a schematic diagram of a flipped state according to Embodiment 2 of the present invention; FIG.

Figure 14 is a schematic view showing the structure of a coil disk according to Embodiment 1 and Embodiment 2 of the present invention.

The markings in the figure are: 1, yaw fixed seat, 2, yaw rotating seat, 3, generator main shaft, 4, coil disk, 5, active magnetic steel disk, 6, driven magnetic steel plate, 7, conductive copper Ring, 8, motor output power line, 9, output power line, 10, rocker arm, 11, round pin, 12, front bearing, 13, rear bearing, 14, front bearing inner ring, 15, front bearing outer ring, 16 , rear bearing inner ring, 17, rear bearing outer ring, 18, bearing inner spacer, 19, embodiment 1 front gland, 20, embodiment 1 rear gland, 21, air gap spacer, 22, U Connection block, 23, blade disc, 24, blade, 25, coil winding, 26, magnetic steel, 27, embodiment 2 gland, 28, tail rudder, 29, tail rudder, 101, rocker straight arm, 102, rocker arm, 201, connecting arm, 23a, (blade disk) blade mounting arm, 301, (generator main shaft) axial through hole, 501, (active magnetic steel plate) blade mounting arm, 101a, through slot , 101b, front head limit port, 101c, rear head limit port, 102a, axial plug hole.

detailed description

The invention will be further described below in conjunction with the drawings and specific embodiments.

Example 1: In this embodiment, the active magnetic steel disk is disposed outside the coil disk, and the driven magnetic steel disk is disposed on the inner side of the coil disk, and a special blade disk is disposed to install the blade.

Referring to Figures 1, 2, 3, 4, 5, 6, and 14:

A wind power generator includes a generator main shaft 3, a yaw device, a conductive device, and a generator and a wind wheel disposed on the main shaft of the generator; the yaw device includes a yaw fixed seat 1, The yaw fixed seat 1 is screwed to a yaw rotary seat 2, the front side of the yaw rotary seat 2 is fixed to the tail rudder stock 28, and the tail rudder stock 28 is fixed to the tail rudder plate 29; the generator is coaxial a coil disc 4 disposed on the main shaft of the generator, an active magnet steel disc 5 and a driven magnetic steel disc 6 are formed. The main and driven

magnetic steel discs

5 and 6 are respectively disposed on the front and the rear of the coil disc 4 On the side, the coil winding 25 is provided on the disk surface of the coil disk 4, and the opposite faces of the main and driven

magnetic steel disks

5, 6 are uniformly provided with a plurality of pairs of oppositely located magnetic steels 26; the conductive means comprises a yaw fixed a conductive copper ring 7 on the seat 1, a generator output power line 8 for connecting the coil winding 25 and the conductive copper ring 7, and an output power line connected to the output end of the conductive copper ring 7 for externally delivering current 9;

The wind turbine is further provided with a "7" shaped rocker arm 10, which is composed of a rocker arm straight arm 101 and the rocker straight arm 102; the rocker straight arm 101 has a forward and backward groove 101a, the front end of the rocker arm 102 has an axial insertion hole 102a;

A connecting arm 201 is inserted into the through slot 101a, and the connecting arm 201 is disposed on the front side of the yaw rotating base 2, and the yaw rotating base 2 The central axis of the connecting arm 201 and the through groove 101a are provided with corresponding pin holes, and a round pin 11 passes through the pin hole to sleeve the rocker arm 10 on the connecting arm 201;

The axial insertion hole 102a is internally inserted and the generator main shaft 3 is fixed by screws.

In front of the slot 101a, The rear notches are respectively set as front and rear

head limit ports

101b, 101c, and the front and

rear limit ports

101b, 101c limit the rocker arms to the upside down of the round pin at an angle of 0-90.

The coil plate 4 is sleeved and fixed to the generator main shaft 3 by screws;

The active magnetic steel plate 5 is sleeved on the generator main shaft 3 outside the coil disk 4, and the front bearing 12 and the rear bearing 13 are arranged in the central shaft hole;

The front bearing 12 has a front bearing inner ring 14 on the inner side and a front bearing outer ring 15 on the outer side;

The inner side of the rear bearing is provided with a rear bearing inner ring 16, and the outer side is provided with a rear bearing outer ring 17;

a bearing inner spacer 18 is disposed between the front bearing inner ring 14 and the rear bearing inner ring 16;

The front and rear apertures of the central shaft hole of the active magnetic steel disk 5 are also respectively provided with front and

rear glands

19 and 20, and the front and

rear glands

19 and 20 are respectively fixed to the front and rear sides of the active magnetic steel plate 5, respectively. ;

The driven magnetic steel disk 6 is disposed on the inner side of the coil disk 4, and passes through a plurality of U made of a non-magnetic material. The type connecting block 22 is fixedly coupled to the active magnet steel disk 5 so as to form the same rotating body with respect to the coil disk 4 as the active magnet steel disk 5.

A blade disk 23 is fixed to the hub of the active magnet steel disk 5; the blade disk 23 A blade mounting arm 23a is provided, and the blade mounting arm 23a is provided with a blade 24 to form a wind wheel formed by the blade disk 23 and the blade 24.

The working principle of the embodiment is that after the wind wheel captures the wind direction, the blade 24 drives the blade disk 23 to start rotating, and the active magnetic steel disk 5 also rotates, and the active magnetic steel disk 5 drives the driven magnetic wave through the U-shaped connecting block 22. The steel disk 6 rotates synchronously around the generator main shaft 3. At this time, the coil disk 4 fixed on the generator main shaft 3 does not move, and the coil disk 4 performs a cutting motion on the magnetic lines of force between the main and driven

magnetic steel plates

5 and 6. Thereby, an induced electromotive force is generated on the coil disk 4, and the electric potential is generated by connecting the electromotive force to the circuit loop through the

power supply lines

8 and 9.

As shown in Figure 6: When the wind exceeds the set wind speed, the blade disk 23 and the blade 24 The formed wind wheel is driven by the wind together with the coiled disc provided on the main shaft 3 of the generator 4. The power generating device consisting of the active magnetic steel disk 5 and the driven magnetic steel disk 6 and other components are turned up around the round pin 11. The greater the wind, the larger the angle of the upturn, until the upper limit is turned up to the rear head limit port. By limiting the 90°, the direction of wind cutting on the wind wheel is changed, and the windward and force-receiving area of the wind wheel is reduced, so that the components such as the blade 24 and the internal circuit of the generator can be effectively protected from damage in strong wind.

When the wind is lower than the set value, the wind wheel, together with the power generating device provided on the main shaft 3 of the generator, flips downward under the action of its own gravity. The smaller the wind, the larger the angle of the downturn, until it is turned down to the front. The head limit port is limited to 90°, so it is reset to normal operation.

Embodiment 2 The active magnetic steel disk of this embodiment is disposed inside the coil disk, and the driven magnetic steel disk is disposed outside the coil disk, and the blade disk is eliminated.

Referring to Figures 7, 8, 9, 10, 11, 12, 13, and 14:

magnetic steel discs

magnetic steel disks

5, 6 are uniformly provided with a plurality of pairs of oppositely located magnetic steels 26; the conductive means comprises a yaw fixed a conductive copper ring 7 on the seat 1, a generator output power line 8 for connecting the coil winding 25 and the conductive copper ring 7, and an output power line 9 connected to the output end of the conductive copper ring 7 for externally delivering current;

The wind turbine has another one a "7"-shaped rocker arm 10, the rocker arm 10 is composed of a rocker arm straight arm 101 and a rocker arm straight arm 102; the rocker arm straight arm 101 is provided with a front and rear through groove 101a, and the front end of the rocker arm cross arm 102 is opened. An axial insertion hole 102a;

A connecting arm 201 is disposed in the through slot 101a, and the connecting arm 201 is disposed on the front side of the yaw rotating base 2 and perpendicular to the central axis of the yaw rotating base 2; both sides of the connecting arm 201 and the through slot 101a The wall has a corresponding pin hole, a round pin 11 passes through the pin hole to sleeve the rocker arm 10 on the connecting arm 201;

The axial insertion hole 102a is inserted and fixed to the generator main shaft 3 by screws.

The front and rear slots of the slot 101a are respectively set as front and rear

head limit ports

101b, 101c, front and

rear limit ports

101b, 101c. Limit the rocker arm to the top and bottom of the round pin at an angle of 0-90°.

The coil plate 4 is sleeved and fixed to the generator main shaft 3 by screws;

The active magnetic steel disk 5 is sleeved on the generator main shaft 3 inside the coil disk 4, and the front bearing 12 is arranged in the central shaft hole. And the rear bearing 13; the inner side of the front bearing 12 is provided with a front bearing inner ring 14, the outer side is provided with a front bearing outer ring 15;

An air gap spacer 21 is disposed between the coil disk 4 and the bearing inner spacer 18, and a pressure cover 27 is disposed outside the air gap spacer 21, and the pressure cover 27 Fixed to the active magnetic steel plate 5;

The generator main shaft 3 is provided with an axial through hole 301 through which the generator output power supply line 8 passes through the coil winding 25 and the conductive copper ring, respectively. Connected.

A blade mounting arm 501 is disposed on a periphery of the disk surface of the active magnet steel disk 5, The blade mounting arm 501 is provided with blades 24 to form a wind wheel formed by the active magnet steel disk 5 and the blades 24.

The working principle of the embodiment is that after the wind direction is captured, the wind wheel formed by the active magnet steel disk 5 and the blade 24 starts to rotate, and the wind wheel drives the driven magnetic steel disk 6 to synchronously wrap around the generator through the U-shaped connecting block 22. The spindle 3 rotates. At this time, the coil disk 4 fixed to the generator main shaft 3 does not move, and the coil disk 4 performs a cutting motion for the magnetic lines of force between the main and driven

magnetic steel plates

5 and 6, thereby generating on the coil disk 4. Inductive electromotive force is generated by connecting the electromotive force to the circuit loop through the

power lines

8 and 9.

As shown in FIG. 13 , when the wind exceeds the set wind speed, the wind wheel formed by the blade disk 23 and the blade 24 is driven by the wind, together with the coiled disk 4 disposed on the main shaft 3 of the generator, The power generating device composed of the active magnet steel disk 5 and the driven magnetic steel disk 6 and other components are wound around the round pin 11 Flip up, the greater the wind, the greater the angle of the upturn, until it is turned up to 90° set by the front and rear head limit ports, thus changing the cutting direction of the wind on the wind wheel, reducing the wind wheel's Windward, stressed area, make the blade 24 The components and the internal circuit of the generator can be effectively protected from damage in strong winds.

When the wind is lower than the set value, the wind wheel, together with the power generating device provided on the main shaft 3 of the generator, flips downward under the action of its own gravity. The smaller the wind, the larger the angle of the downturn until the reset to the normal working state. .

Claims

A wind power generator includes a generator main shaft, a yaw device, a conductive device, and a generator and a wind wheel disposed on the main shaft of the generator; the yaw device includes a yaw fixed seat, and the top surface of the yaw fixed seat is screwed together a yaw rotary seat, a rudder rudder fixed to the rear side of the yaw rotary seat, and a tail rudder plate fixed to the tail rudder; the generator is a coil disk coaxially disposed on the generator main shaft, and an active magnetic field The steel plate and a driven magnetic steel plate are formed. The main and driven magnetic steel plates are respectively disposed on the front and rear sides of the coil disk, and the coil windings are arranged on the disk surface of the coil disk, and the facing surfaces of the main and driven magnetic steel plates are opposite. a plurality of pairs of magnetic steels of opposite polarity are uniformly disposed; the conductive device comprises a conductive copper ring disposed on the yaw fixed seat, a generator output power line for connecting the coil winding and the conductive copper ring, and the conductive copper The output end of the ring is connected, and the output power line for externally delivering current is characterized by:

The wind power generator further includes a "7"-shaped rocker arm connecting the generator main shaft and the yaw rotary seat, the rocker arm being composed of a rocker arm straight arm and a rocker arm cross arm. The forward arm of the rocker arm has a front and rear through groove, and the front end of the cross arm of the rocker arm has an axial insertion hole;

a connecting arm is inserted into the slot. The connecting arm is disposed on a front side of the yaw rotating seat and perpendicular to a central axis of the yaw rotating base; the connecting arm and the two side walls of the through slot are provided with corresponding pin holes, and a round pin passes through the latch The hole sleeves the rocker arm on the connecting arm;

The axial plug hole is inserted and the generator main shaft is fixed by screws.
A wind power generator according to claim 1, wherein:

The front and rear slots of the through slot are respectively provided with front and rear head limit ports, and the front and rear head limit ports limit the rocker arm to 0-90°, and the round pin is turned upside down; the rocker arm is turned upside down. to At 90°, the rear head limit port touches the top surface of the connecting arm and restricts the rocker arm from turning up again; when the rocker arm is turned down to 90°, the front head limit port supports it on the top surface of the connecting arm. Make it no longer fall down.
A wind power generator according to claim 1, wherein:

The coil disk is sleeved and fixed to the generator main shaft by screws;

The active magnetic steel disk is sleeved on the generator main shaft outside the coil disk, and the front and rear bearings are arranged in the central shaft hole, and the inner ring and the outer ring of the bearing are respectively arranged on the inner and outer sides of the front and rear bearings. The bearing inner sleeve is arranged between the inner ring of the bearing of the front and rear bearings; the front and rear apertures of the central shaft hole of the active magnetic steel plate are respectively provided with front and rear glandes, and the front and rear glands are respectively fixed on the active Front and rear sides of the magnetic steel disk;

The driven magnetic steel disk is disposed on the inner side of the coil disk and passes through several U The connecting block is fixedly connected to the active magnet steel plate to form the same rotating body with respect to the coil disk with the active magnet steel disk.
A wind power generator according to claim 3, wherein:

a blade disc is fixed to the hub of the active magnet steel disk;

The blade disk is provided with a blade mounting arm, and the blade mounting arm is provided with a blade, thereby forming a wind wheel composed of a blade disk and a blade.
A wind power generator according to claim 1, wherein:

The coil disk is sleeved and fixed to the generator main shaft by screws;

The active magnetic steel disk is sleeved on the generator main shaft inside the coil disk, and the front and rear bearings are arranged in the central shaft hole, and the inner ring and the outer ring of the bearing are respectively arranged on the inner and outer sides of the front and rear bearings. A bearing inner spacer is arranged between the inner ring of the bearing of the front and rear bearings, and an air gap spacer is arranged between the coil disk and the inner spacer of the bearing, and a pressure cover is arranged outside the air gap spacer, and the pressure cover is fixed to the active magnetic Steel plate

The driven magnetic steel disk is disposed on the outer side of the coil disk and passes through a plurality of U The connecting block is fixedly connected with the active magnet steel plate to form the same rotating body with respect to the coil disk with the active magnetic steel disk;

The generator main shaft is provided with an axial through hole, and the generator output power line is connected to the coil winding and the conductive copper ring through the axial through hole.
A wind power generator according to claim 5, wherein:

A blade mounting arm is arranged on the outer surface of the disk surface of the active magnet steel disk, and blades are arranged on the blade mounting arm to form a wind wheel formed by the active magnetic steel disk and the blade.
A wind power generator according to claim 3 or 5, wherein:

The U-shaped connecting block is made of a non-magnetic material.