CN110345003B

CN110345003B - Hub structure of wind driven generator

Info

Publication number: CN110345003B
Application number: CN201910490555.1A
Authority: CN
Inventors: 高润前; 刘明生; 戴俊杰
Original assignee: Anhui Qihao Machinery Equipment Manufacturing Co ltd
Current assignee: Anhui Qihao Machinery Equipment Manufacturing Co ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-09-22
Anticipated expiration: 2039-06-06
Also published as: CN110345003A

Abstract

The invention provides a hub structure of a wind driven generator, which comprises a hub shell and a positioning mechanism, wherein the hub shell is of an internal hollow structure, a blade head is inserted into the hub shell, and the positioning mechanism is arranged in the hub shell. The invention is innovative in that a positioning mechanism is arranged in a hub shell, positioning pins on the positioning mechanism are inserted into three blade heads, so that on one hand, the quick assembly between a generator hub and fan blades can be completed, on the other hand, the three blades can form a whole, the position of the blades in the generator hub is more stable, and the whole stability of the wind driven generator is higher; secondly be provided with the telescopic second polygon prism in positioning mechanism, when carrying out the blade to this generator wheel hub and connecting, extensible second polygon prism makes it be located the wheel hub casing for three blade head when the installation, confirm the position fast, thereby further improve the installation effectiveness.

Description

Hub structure of wind driven generator

Technical Field

The invention relates to the technical field of wind driven generators, in particular to a hub structure of a wind driven generator.

Background

The wind driven generator is a device for converting wind energy into electric energy, and mainly comprises blades, a generator, mechanical parts and electrical parts. According to the difference of rotating shafts, wind driven generators are mainly divided into two types, namely horizontal shaft wind driven generators and vertical shaft wind driven generators, and the horizontal shaft wind driven generators in the current market occupy the mainstream position.

However, when the hub of the existing wind driven generator is used, the limitation of the hub to the fan blades is independent, the hub can shake with the fan blades after being used for a long time, the stability of the hub is not enough, and the hub and the fan blades are complicated to install and inconvenient to install.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a hub structure of a wind driven generator.

The invention solves the technical problems through the following technical means:

a hub structure of a wind driven generator comprises a hub shell and a positioning mechanism, wherein the hub shell is of an internal hollow structure, blade heads are inserted into the hub shell, the positioning mechanism is arranged inside the hub shell and used for connecting a plurality of blade heads into a whole;

the positioning mechanism includes: the blade head comprises a first polygon prism, a through hole and a positioning pin, wherein the positioning pin is fixed on the outer side of the first polygon prism in a normal triangular distribution mode, the center of the positioning pin penetrates through the through hole, the positioning pin penetrates through the blade head, and the through hole for the rotating shaft to penetrate through is formed in the center of the first polygon prism.

Preferably, the first polygon prism is located the locating pin and stretches out end homonymy and connect telescopic link one end, the other end of telescopic link is fixed with the second polygon prism, the second polygon prism is used for fixing a position the blade head wears to locate the position in the wheel hub casing.

Preferably, a fixing base is fixed on one side of the hub shell, a rotating shaft connecting hole penetrating through the rotating shaft is formed in the center of the fixing base, and a first support frame is fixed on the fixing base and located inside the hub shell.

Preferably, the number of the first support frames is three, the three first support frames are distributed outside the rotating shaft connecting hole in a normal triangle manner, and a through hole corresponding to the center of the positioning pin is formed in the first support frame.

Preferably, the other side of wheel hub casing is equipped with detachable locking mechanical system, locking mechanical system is used for injecing the position that positioning mechanism is located the wheel hub casing, locking mechanical system includes fixed ring, second bolt hole and second support frame, be fixed with the second support frame on the outer wall of fixed ring, the fixed ring is used for the cover to establish the pivot.

Preferably, the number of the second support frames is three, the three second support frames are distributed on the outer side of the fixed ring in a normal triangular mode, the second support frames are provided with second bolt holes, and the second bolt holes correspond to through holes formed in the centers of the positioning pins.

Preferably, blade head clamping holes are formed in the outer surface wall of the hub shell in a normal triangular distribution mode, positioning rings are fixed to positions, corresponding to the blade head clamping holes, on the hub shell, and the positioning rings are used for limiting the positions of the blade heads.

The invention has the advantages that: firstly, a positioning mechanism is arranged in a hub shell, positioning pins on the positioning mechanism are inserted into three blade heads, so that on one hand, the quick assembly between a generator hub and fan blades can be completed, on the other hand, the three blades can form a whole, the position of the blades in the generator hub is more stable, the whole stability of the wind driven generator is higher, and the service life is longer; secondly be provided with the telescopic second polygon prism in positioning mechanism, when carrying out the blade to this generator wheel hub and connecting, extensible second polygon prism makes it be located the wheel hub casing for three blade head when the installation, confirm the position fast, thereby further improve the installation effectiveness.

Drawings

FIG. 1 is a schematic view of an internal structure of a hub structure of a wind turbine according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a positioning mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the structure of the junction of a first polygon mirror and a second polygon mirror in accordance with an embodiment of the present invention;

FIG. 4 is a schematic bottom view of the hub shell according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a locking mechanism according to an embodiment of the present invention.

Reference numbers in the figures: 10. the blade fixing device comprises a hub shell, 11, a blade head clamping hole, 111, a positioning ring, 12, a fixing base, 121, a rotating shaft connecting hole, 13, a first supporting frame, 131, a first bolt hole, 20, a blade head, 30, a positioning mechanism, 31, a first polygon prism, 311, a telescopic rod, 32, a through hole, 312, a second polygon prism, 33, a positioning pin, 40, a locking mechanism, 41, a fixing ring, 42, a second bolt hole, 43 and a second supporting frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, the hub structure of the wind turbine generator in this embodiment includes a hub shell 10 and a positioning mechanism 30, where the hub shell 10 is an internal hollow structure, a blade head 20 is inserted into the hub shell 10, the positioning mechanism 30 is disposed inside the hub shell 10, and the positioning mechanism 30 is used to connect a plurality of blade heads 20 into a whole.

The blade head 20 is provided with threely altogether, and positioning mechanism 30 will wear to locate the inside three blade head 20 of hub shell 10 and connect, forms wholly between the three of three blade head 20, and positioning mechanism 30 is located inside hub shell 10 for also form integratively between three holistic blade head 20 of formation and the hub shell 10, thereby make the position that the blade head 20 is arranged in hub shell 10 more stable, can not produce the blade phenomenon of coming off, the result of use is better.

As shown in fig. 1-2, the positioning mechanism 30 includes: the blade head comprises a first polygon prism 31, a through hole 32 and a positioning pin 33, wherein the positioning pin 33 is fixed on the outer side of the first polygon prism 31 in a normal triangular distribution mode, a through hole is formed in the center of the positioning pin 33 in a penetrating mode, the positioning pin 33 penetrates through the blade head 20, and the through hole 32 for the rotating shaft to penetrate through is formed in the center of the first polygon prism 31.

The first polygon prism 31 and the second polygon prism 32 have the same structure, three edges of the first polygon prism 31 connected with the positioning pin 33 are equal, and three edges of the first polygon prism 31 connected with the positioning pin 33 are used for contacting the blade head 20, so that the position of the blade head 20 in the hub shell 10 is limited, the position determination of the blade head 20 is accelerated, and the installation efficiency is improved; three blade head 20 is worn to establish by locating pin 33 for form wholly between the three blade head 20, improve overall stability, the result of use is better.

As shown in fig. 1 and 3, the first polygonal column 31 is located on the same side as the extending end of the positioning pin 33 and is connected to one end of the telescopic rod 311, the other end of the telescopic rod 311 is fixed with a second polygonal column 312, and the second polygonal column 312 is used for positioning the position where the blade head 20 is inserted into the hub shell 10.

The first polygon prism 31 and the second polygon prism 312 can extend and contract, when the blade head 20 is installed inside the hub shell 10, the second polygon prism 312 can be extended and exceeds the length of the positioning pin 33, the second polygon prism 312 is placed inside the hub shell 10 in advance, when the three blade heads 20 are inserted into the hub shell 10, the second polygon prism 312 can quickly determine and limit the positions of the three blade heads 20 when being installed, and therefore installation efficiency is improved, after the positions of the three blade heads 20 are determined, the position of the first polygon prism 31 relative to the second polygon prism 312 can be contracted through the action of the telescopic rod 311, the positioning pin 33 on the first polygon prism 31 can be quickly inserted into the blade head 20, and the blade head 20 can be quickly fixed.

As shown in fig. 4, a fixing base 12 is fixed on one side of the hub shell 10, a rotating shaft connecting hole 121 penetrating through the rotating shaft is formed in the center of the fixing base 12, a first support frame 13 is fixed inside the hub shell 10 on the fixing base 12, the number of the first support frames 13 is three, the three first support frames 13 are distributed outside the rotating shaft connecting hole 121 in a normal triangular manner, and a first bolt hole 131 corresponding to a through hole formed in the center of the positioning pin 33 is formed in the first support frame 13.

As shown in fig. 4 to 5, a detachable locking mechanism 40 is disposed on the other side of the hub shell 10, the locking mechanism 40 is configured to limit the position of the positioning mechanism 30 in the hub shell 10, the locking mechanism 40 includes a fixing ring 41, second bolt holes 42 and second support frames 43, the second support frames 43 are fixed on the outer wall of the fixing ring 41, the fixing ring 41 is configured to sleeve a rotating shaft, the number of the second support frames 43 is three, the three second support frames 43 are normally distributed on the outer side of the fixing ring 41 in a triangular manner, the second support frames 43 are provided with second bolt holes 42, and the second bolt holes 42 correspond to through holes formed in the centers of the positioning pins 33.

When the positioning mechanism 30 is installed with the three blade heads 20 in a penetrating manner, one side of the positioning pin 33 on the positioning mechanism 30 can be abutted to the first support frame 13 on the fixing base 12, the second support frame 43 on the locking mechanism 40 is abutted to the other side of the positioning pin 33, the bolt sequentially penetrates through the second bolt hole 42 on the second support frame 43, the through hole on the positioning pin 33 and the first bolt hole 131 on the first support frame 13, so that the locking mechanism 40, the positioning mechanism 30 and the fixing base 12 are integrated, the positioning mechanism 30 is limited in position, the mode can be assembled quickly, and the assembling efficiency between the generator hub and the blades is higher.

As shown in fig. 4, blade head fastening holes 11 are disposed in a normal triangular distribution on the outer surface wall of the hub shell 10, a positioning ring 111 is fixed on the hub shell 10 at a position corresponding to the blade head fastening holes 11, and the positioning ring 111 is used to limit the position of the blade head 20.

The joint hole 11 wears to establish blade head 20, once restricts to the position of blade head 20, evenly offers threaded hole in the holding ring 111 on the wheel hub casing 10, and when holding ring 111 was connected with blade head 20, the bolt passed also blade head 20 of the screw hole in holding ring 111 for holding ring 111 is connected with blade head 20, can carry out the secondary restriction to blade head 20, makes blade head 20's position more stable.

In the embodiment, when the blade fixing device is used, the second polygon prism 312 connected to the first polygon prism 31 through the telescopic rod 311 is extended, the extending length exceeds the length of the positioning pin 33, so that the second polygon prism 312 is located inside the cylinder 10, the three blade heads 20 are inserted into the hub shell 10 from the positions of the blade head clamping holes 11, the three blade heads 20 are resisted by the second polygon prism 312, the positions of the blade heads 20 are quickly determined, after the positions of the three blade heads 20 are determined, the positions of the first polygon prism 31 relative to the second polygon prism 312 are contracted through the action of the telescopic rod 311, so that the positioning pin 33 on the first polygon prism 31 is quickly inserted into the blade heads 20, and the blade heads 20 are quickly fixed;

after the position of the blade head 20 relative to the positioning pin 33 is fixed, the locking mechanism 40 covers the positioning mechanism 30, the second bolt hole 42 on the second support frame 43, the through hole on the positioning pin 33 and the first bolt hole 131 on the first support frame 13 are in the same straight line, and the locking mechanism 40, the positioning mechanism 30 and the fixing base 12 are integrated through the second bolt hole 42 on the second support frame 43, the through hole on the positioning pin 33 and the first bolt hole 131 on the first support frame 13 by bolts in sequence, so that the integral installation of the generator hub can be completed. .

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A wind driven generator hub structure is characterized in that: the blade-mounted hub comprises a hub shell (10) and a positioning mechanism (30), wherein the hub shell (10) is of an internal hollow structure, blade heads (20) are inserted into the hub shell (10), the positioning mechanism (30) is arranged inside the hub shell (10), and the positioning mechanism (30) is used for connecting the blade heads (20) into a whole;

the positioning mechanism (30) comprises: first polygon prism (31), through hole (32) and locating pin (33), the outside of first polygon prism (31) is normal triangular distribution and is fixed with locating pin (33), locating pin (33) center department runs through and has seted up the through-hole, blade head (20) are worn to establish in locating pin (33), through hole (32) that supply the pivot to wear to establish are seted up in the center department of first polygon prism (31), it stretches out end homonymy and connects telescopic link (311) one end to lie in locating pin (33) on first polygon prism (31), the other end of telescopic link (311) is fixed with second polygon prism (312), second polygon prism (312) are used for the location the position in wheel hub casing (10) is worn to locate by blade head (20).

2. A wind turbine hub construction according to claim 1, wherein: one side of wheel hub casing (10) is fixed with unable adjustment base (12), the pivot connecting hole (121) of wearing to establish the pivot are seted up to the center department of unable adjustment base (12), it is fixed with first support frame (13) to lie in wheel hub casing (10) inside on unable adjustment base (12).

3. A wind turbine hub construction according to claim 2, wherein: the number of the first support frames (13) is three, the three first support frames (13) are distributed outside the rotating shaft connecting hole (121) in a normal triangle mode, and a first bolt hole (131) corresponding to a through hole formed in the center of the positioning pin (33) is formed in each first support frame (13).

4. A wind turbine hub construction according to claim 2, wherein: the opposite side of wheel hub casing (10) is equipped with detachable locking mechanical system (40), locking mechanical system (40) are used for injecing the position that positioning mechanism (30) are located wheel hub casing (10), locking mechanical system (40) are including fixed ring (41), second bolt hole (42) and second support frame (43), be fixed with second support frame (43) on the outer wall of fixed ring (41), fixed ring (41) are used for the cover to establish the pivot.

5. A wind turbine hub construction according to claim 4, wherein: the number of the second support frames (43) is three, the three second support frames (43) are distributed on the outer side of the fixed ring (41) in a normal triangular mode, second bolt holes (42) are formed in the second support frames (43), and the second bolt holes (42) correspond to through holes formed in the centers of the positioning pins (33).

6. A wind turbine hub construction according to claim 4, wherein: blade head joint hole (11) are seted up to be normal triangular distribution on the outer table wall of wheel hub casing (10), it is fixed with holding ring (111) to lie in blade head joint hole (11) corresponding position department on wheel hub casing (10), holding ring (111) are used for restricting blade head (20) position.