CN217421418U

CN217421418U - Wind power pitch control device convenient to maintain

Info

Publication number: CN217421418U
Application number: CN202220029885.8U
Authority: CN
Inventors: 卜义鸣; 薛辉
Original assignee: Mengdong Xiehe Zhenlai No2 Wind Power Generation Co ltd
Current assignee: Mengdong Xiehe Zhenlai No2 Wind Power Generation Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-09-13
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses a convenient wind-powered electricity generation of maintaining becomes oar device, become oar body and become the oar bearing including wind-powered electricity generation, the outside that becomes the oar bearing is equipped with becomes oar bearing outer loop, the outside that becomes the oar bearing outer loop is equipped with installation mechanism, installation mechanism includes mounting disc, solid fixed ring, tighrening ring, side piece, bolt, nut, fixed block, screw knob, connecting block, dwang and turning block, two be equipped with the festival blade between the tighrening ring, fixed mounting has the go-between on the underrun wall of festival blade. A convenient wind-powered electricity generation that maintains becomes oar device, belong to the wind power generation equipment field, through the installation mechanism that sets up, the maintainer of being convenient for will be economized on a programme blade and wind-powered electricity generation and become and install fast between the oar body to make things convenient for the maintainer to save the blade and dismantle from the wind-powered electricity generation becomes the oar body and get off, so that the maintainer maintains the maintenance to the wind-powered electricity generation becomes the oar body, improved the maintenance efficiency of maintainer to the wind-powered electricity generation becomes the oar body.

Description

Wind power pitch control device convenient to maintain

Technical Field

The utility model relates to a wind power generation equipment field, in particular to wind-powered electricity generation that conveniently maintains becomes oar device.

Background

The variable pitch system is one of the core parts of a large-scale wind turbine control system, and plays an important role in safe, stable and efficient operation of the wind turbine. The stable pitch control becomes one of the hot spots and difficulties of the current large-scale wind generating set control technology research. The pitch control technology is simple, namely the attack angle of the air flow to the blades is changed by adjusting the pitch angle of the blades, and then the aerodynamic torque and the aerodynamic power captured by the wind wheel are controlled. The pitch mechanism controls the position angle of the blades relative to the plane of rotation. The small fan has no variable pitch mechanism, and the rotating speed must be regulated by means of stall at high speed. The variable pitch control enables the fan to obtain electric energy at low wind speed and capture wind energy with fixed size when the wind speed is higher than rated wind speed. More than one method of controlling pitch angle; various methods require mechanisms for controlling the blade angle. The control algorithm continuously monitors the wind speed and the output of the generator, and adjusts the pitch angle of the blades. When the wind speed is higher than the rated wind speed, the blade pitch angle is increased greatly to change the angle of attack and induce stall. The variable pitch mechanism is arranged at the front part of the hub, and a gear is arranged at the root parts of the hub and the blade to connect the hub and the blade. The outer motor controls the pitch through a gear or a toothed transmission belt. The outboard motor and the rest of the pitch system are within the hub and drive with it. With the rapid development of wind power generation technology, wind turbine generators are developing from constant speed and constant frequency to variable speed and constant frequency and from fixed pitch to variable pitch. The variable pitch wind turbine generator has become the mainstream model of the current wind turbine generator due to the advantages of capability of capturing wind energy to the maximum extent, stable output power, small stress of the generator and the like. When a bearing support of a wind power pitch-variable blade and a pitch blade are installed in the prior art, the operation is complex and inconvenient, and then inconvenient maintenance personnel can rapidly detach the pitch blade from the wind power pitch-variable blade to maintain the wind power pitch.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a convenient wind-powered electricity generation that maintains becomes oar device can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a convenient wind-powered electricity generation of maintaining becomes oar device, includes that wind-powered electricity generation becomes the oar body and becomes the oar bearing, the outside that becomes the oar bearing is equipped with becomes oar bearing outer loop, the outside that becomes oar bearing outer loop is equipped with installation mechanism, installation mechanism includes mounting disc, solid fixed ring, tighrening ring, side piece, bolt, nut, fixed block, screw thread knob, connecting block, dwang and turning block, two be equipped with the festival blade between the tighrening ring.

Preferably, a connecting ring is fixedly installed on the bottom wall of each blade section, and a plurality of positioning blocks are fixedly installed on the outer surface of the connecting ring.

Preferably, a fixing ring is fixedly mounted on the outer ring surface of the outer ring of the variable-pitch bearing, a plurality of positioning grooves corresponding to the positioning blocks are formed in the inner ring surface of the fixing ring, a mounting disc is fixedly mounted on the outer ring surface of the fixing ring, and a group of symmetrical threaded holes are formed in the top surface of the mounting disc.

Preferably, the tighrening ring presents the semi-ring form, just on the both sides lateral wall of tighrening ring respectively fixed mounting have the side piece, the connecting hole has been seted up on the lateral wall of side piece, the bolt interlude is installed in the connecting hole, on the nut screw in mounting bolt, the fixed block of a set of symmetry is installed to the ring outer wall center fixed mounting of tighrening ring, just the rotation hole has been seted up on the lateral wall of fixed block.

Preferably, the connecting block is located between the fixed block of symmetry, just there is the dwang respectively fixed mounting on the both sides lateral wall of connecting block, the dwang alternates to be installed in the rotation hole, just convex type rotation groove has still been seted up to the bottom surface of connecting block.

Preferably, the threaded knob is screwed in and installed in the threaded hole, a rotating block is fixedly installed on the top surface of the threaded knob, and the rotating block is movably installed in the rotating groove.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through the installation mechanism that sets up, the maintainer of being convenient for will save blade and wind-powered electricity generation and become to install fast between the oar body to make things convenient for the maintainer to save the blade and dismantle from the wind-powered electricity generation becomes the oar body, so that the maintainer carries out the maintenance to the wind-powered electricity generation becomes the oar body and maintains, has improved the maintenance efficiency that the maintainer becomes the oar body to wind-powered electricity generation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the blade-saving device of the present invention;

FIG. 3 is a schematic view of the mounting mechanism of the present invention;

fig. 4 is a schematic view of the structure of the connecting block of the present invention.

In the figure: 1. the wind power variable pitch body; 2. a pitch bearing; 3. a variable pitch bearing outer ring; 4. an installation mechanism; 5. blade-saving; 6. a connecting ring; 7. positioning a block; 8. mounting a disc; 9. a threaded hole; 10. a fixing ring; 11. positioning a groove; 12. a fastening ring; 13. a side block; 14. connecting holes; 15. a bolt; 16. a nut; 17. a fixed block; 18. rotating the hole; 19. a threaded knob; 20. connecting blocks; 21. rotating the rod; 22. A rotating groove; 23. and (6) rotating the block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a wind power pitch control device convenient to maintain comprises a wind power pitch control body 1 and a pitch control bearing 2, wherein a pitch control bearing outer ring 3 is arranged outside the pitch control bearing 2, an installation mechanism 4 is arranged outside the pitch control bearing outer ring 3, the installation mechanism 4 comprises an installation disc 8, a fixed ring 10, fastening rings 12, side blocks 13, bolts 15, nuts 16, a fixed block 17, a threaded knob 19, a connecting block 20, a rotating rod 21 and a rotating block 23, and a pitch blade 5 is arranged between the two fastening rings 12.

As shown in fig. 2 to 4, in this embodiment, in order to facilitate maintenance of the wind turbine pitch body 1 by a maintenance person and improve maintenance efficiency of the maintenance person on the wind turbine pitch body 1, a connection ring 6 is fixedly mounted on a bottom surface wall of each pitch blade 5, a plurality of positioning blocks 7 are fixedly mounted on an outer ring surface of the connection ring 6, a fixing ring 10 is fixedly mounted on an outer ring surface of the pitch bearing outer ring 3, a plurality of positioning grooves 11 corresponding to the positioning blocks 7 are formed in an inner ring surface of the fixing ring 10, a mounting plate 8 is fixedly mounted on an outer ring surface of the fixing ring 10, a set of symmetrical threaded holes 9 is formed in a top surface of the mounting plate 8, the fastening ring 12 is semi-annular, side blocks 13 are fixedly mounted on side walls on two sides of the fastening ring 12 respectively, a connection hole 14 is formed in a side wall of each side block 13, a bolt 15 is inserted and mounted in the connection hole 14, the nut 16 is screwed into the mounting bolt 15, a set of symmetrical fixed blocks 17 is fixedly mounted at the center of the outer wall of the fastening ring 12, the side walls of the fixed blocks 17 are provided with rotating holes 18, the connecting block 20 is positioned between the symmetrical fixed blocks 17, and rotating rods 21 are respectively fixedly mounted on the side walls of two sides of the connecting block 20, the rotating rods 21 are inserted and mounted in the rotating holes 18, the bottom surface of the connecting block 20 is further provided with convex rotating grooves 22, the threaded knob 19 is screwed and mounted in the threaded hole 9, the top surface of the threaded knob 19 is fixedly provided with a rotating block 23, the rotating block 23 is movably mounted in the rotating grooves 22, when the segmented blade 5 is mounted, the connecting ring 6 mounted on the bottom surface wall of the segmented blade 5 is firstly inserted into the ring of the fixing ring 10, and the positioning block 7 mounted on the outer wall of the connecting ring 6 is inserted into the positioning groove 11 formed on the inner wall of the fixing ring 10, then, the fastening ring 12 is rotated, at this time, a set of fixing blocks 17 installed on the outer wall of the fastening ring 12 are rotated on the rotating rods 21 installed on the side walls of both sides of the connecting block 20 through the rotation holes 18 formed therein, at this time, the fastening ring 12 is turned over, and the fastening ring 12 is continuously turned over until the fastening ring 12 is attached to the top surface of the connecting ring 6, and the two fastening rings 12 are combined with each other, at this time, the side blocks 13 installed on the side walls of both sides of the two fastening rings 12 are aligned with each other, then, the bolts 15 are inserted into the connecting holes 14 formed in the symmetrical side blocks 13, and then the nuts 16 are screwed into the front ends of the bolts 15 to fix the fastening rings 12 together, and finally, the screw knobs 19 located on both sides of the bottom surface of the mounting plate 8 are simultaneously rotated, the screw knobs 19 are screwed into the screw holes 9 formed in the top surface of the mounting plate 8, and the rotating block 23 installed on the top surface of the rotating block is driven to rotate in the convex rotating groove 22 formed on the top surface of the connecting block 20 while the thread rotating operation is realized, meanwhile, the fastening ring 12 is driven to move downwards through the connecting block 20 in the process of continuously rotating the thread knob 19 until the thread knob 19 cannot rotate, so that the fastening ring 12 is clamped on the top surface of the connecting ring 6 and the blades 5 are installed on the wind power pitch-variable body 1, if the blades 5 are to be disassembled, the interface is realized through the reverse operation of the operation.

In conclusion, the present invention has been described in detail with reference to the preferred embodiments, but various modifications can be made without departing from the scope of the present invention, and equivalents may be substituted for elements thereof, or equivalent substitutions may be made for some technical features thereof, all of which are within the spirit and principle of the present invention.

Claims

1. The utility model provides a wind-powered electricity generation that convenient was maintained becomes oar device which characterized in that: become oar body (1) and become oar bearing (2) including wind-powered electricity generation, the outside of becoming oar bearing (2) is equipped with becomes oar bearing outer ring (3), the outside of becoming oar bearing outer ring (3) is equipped with installation mechanism (4), installation mechanism (4) are equipped with festival blade (5) including mounting disc (8), solid fixed ring (10), tighrening ring (12), side piece (13), bolt (15), nut (16), fixed block (17), screw knob (19), connecting block (20), dwang (21) and turning block (23), two between tighrening ring (12).

2. The conveniently maintained wind power pitch device according to claim 1, wherein: the bottom wall of the blade segment (5) is fixedly provided with a connecting ring (6), and the outer surface of the connecting ring (6) is fixedly provided with a plurality of positioning blocks (7).

3. The wind power pitch device convenient to maintain according to claim 2, wherein: the variable-pitch bearing outer ring is characterized in that a fixing ring (10) is fixedly mounted on the ring outer surface of the variable-pitch bearing outer ring (3), a plurality of positioning grooves (11) corresponding to the positioning blocks (7) are formed in the ring inner surface of the fixing ring (10), a mounting disc (8) is fixedly mounted on the ring outer surface of the fixing ring (10), and a set of symmetrical threaded holes (9) are formed in the top surface of the mounting disc (8).

4. The conveniently maintained wind power pitch device according to claim 3, wherein: the utility model discloses a fastening ring (12) is including the fastening ring, fastening ring (12) present the semicircular in shape, just on the both sides lateral wall of fastening ring (12) respectively fixed mounting have side piece (13), connecting hole (14) have been seted up on the lateral wall of side piece (13), bolt (15) alternate and install in connecting hole (14), on nut (16) screw in mounting bolt (15), the ring outer wall center fixed mounting of fastening ring (12) has fixed block (17) of a set of symmetry, just rotation hole (18) have been seted up on the lateral wall of fixed block (17).

5. The wind power pitch device convenient to maintain according to claim 4, wherein: connecting block (20) are located between fixed block (17) of symmetry, just on the both sides lateral wall of connecting block (20) respectively fixed mounting have dwang (21), dwang (21) alternate and install in rotating hole (18), just convex type rotation groove (22) have still been seted up to the bottom surface of connecting block (20).

6. The conveniently maintained wind power pitch device according to claim 5, wherein: the thread knob (19) is screwed into the threaded hole (9), a rotating block (23) is fixedly mounted on the top surface of the thread knob (19), and the rotating block (23) is movably mounted in the rotating groove (22).