CN213521480U

CN213521480U - Fixing device of aerogenerator end cover

Info

Publication number: CN213521480U
Application number: CN202022911693.3U
Authority: CN
Inventors: 王文超; 韩国栋; 白凯; 张子杰; 郝爱华
Original assignee: Inner Mongolia Huadian Meiguiying Wind Power Generation Co ltd
Current assignee: Inner Mongolia Huadian Meiguiying Wind Power Generation Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-06-22
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a fixing device of aerogenerator end cover relates to the wind power generation field. The fixing device of the end cover of the wind driven generator comprises a rotating shaft, an end cover fixing cylinder and an end cover, wherein the side face of a magnetic field box is fixedly connected with the end cover fixing cylinder, the side face of the end cover fixing cylinder is in threaded connection with a first flange plate, the side face of the end cover is fixedly connected with a second flange plate, and the side face of the second flange plate is penetrated and inserted with a fixing bolt. This fixing device of aerogenerator end cover sets up the end cover solid fixed cylinder in the end cover fixed department, through connect the ring flange on the end cover, utilizes another ring flange threaded connection on the screw thread opposite in direction with it, and two threaded connection can only rotate towards a direction simultaneously under fixing bolt's effect at the ring flange of the solid fixed cylinder side of end cover, but because the screw thread effect of two different directions limit the position and can not remove to take place to become flexible between the end cover that connects through the ring flange and the end cover solid fixed cylinder.

Description

Fixing device of aerogenerator end cover

Technical Field

The utility model relates to a wind power generation technical field specifically is a fixing device of aerogenerator end cover.

Background

The wind driven generator is a process of blowing the fan blades by using wind, urging a rotating shaft in the middle of the fan blades to rotate to generate mechanical energy, driving a closed coil to overcome the action of a magnetic field in the magnetic field to cut a magnetic induction line, and converting the mechanical energy into electric energy to generate induced current.

Aerogenerator is in the use, need protect at the tip installation case lid of pivot, in order to guarantee that pivot department is not by dust pollution increase frictional force, traditional case lid mostly adopts the side of circumference end cover to set up a plurality of screws and carries out the bolt fastening with the generator main part, the direct one side of covering at the pivot of end cover, basically only play the effect of preventing dust, and fixed effect is not good, it is easy in generator work to cause the end cover not hard up because incessantly vibrations of generator, thereby it takes place revealing of lubricating oil to cause the sealed of influence end cover, so we provide the fixing device of aerogenerator end cover, solve the above-mentioned influence of vibrations to generator end cover stationary state.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model discloses a fixing device of aerogenerator end cover to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a fixing device of aerogenerator end cover, includes pivot, the fixed section of thick bamboo of end cover and end cover, pivot through connection has the magnetic field case, the fixed section of thick bamboo of side fixedly connected with end cover of magnetic field case, the side threaded connection of the fixed section of thick bamboo of end cover has first ring flange, the side threaded connection that the fixed section of thick bamboo of end cover kept away from magnetic field case one end has the end cover, the side fixedly connected with second ring flange of end cover, the side of second ring flange is run through and is pegged graft there is fixing bolt, fixing bolt run through the second ring flange and with first ring flange threaded connection.

Preferably, the side face of the rotating shaft is fixedly connected with a limiting bearing, and the outer wall of the limiting bearing is fixedly connected with the side wall of the magnetic field box.

Preferably, the side face of the rotating shaft close to one end of the end cover is fixedly sleeved with a fixed bearing, the inner wall of the end cover fixing cylinder far away from one end of the magnetic field box is provided with a fixing groove matched with the fixed bearing, and the inner wall of the fixing groove is in mortise and tenon connection with a bolt.

Preferably, the end cover fixing barrel comprises a transition barrel and a thread barrel, the thread barrel is symmetrically and fixedly connected to the two ends of the transition barrel, the outer diameter of the transition barrel is smaller than the outer diameter of the thread barrel, first threads are formed in the side face of the thread barrel fixedly connected with the magnetic field box, and second threads opposite to the first threads in direction are formed in the side face of the thread barrel far away from the magnetic field box.

Preferably, the side of fixing bolt just is located first ring flange and second ring flange intermediate thread and is connected with locknut, the side of pivot just is located the fixed cover of inner wall that a section of thick bamboo is close to magnetic field case one end of end cover and has connect the sealing washer, the interior bottom surface of end cover also is provided with the sealing washer.

Preferably, the rotating shaft penetrates through the side wall of the magnetic field box and extends to the inner side of the end cover fixing cylinder, and the inner diameter of the end cover fixing cylinder is matched with the rotating shaft.

Preferably, the four fixing bolts are symmetrically arranged on the side surface of the second flange plate, and one side of the first flange plate, which is close to the second flange plate, is provided with threaded holes matched with the fixing bolts.

The utility model discloses a fixing device of aerogenerator end cover, its beneficial effect who possesses as follows:

1. the fixing device of the end cover of the wind driven generator, the end cover in the prior art is generally provided with the end cover which is in threaded connection or bolted connection, the threaded connection is gradually loosened due to vibration in the using process of the device, the end cover fixing cylinder which is fixedly welded with a magnetic field box is arranged at the end cover fixing position in the device, two threads with opposite directions are arranged on the side surface of the end cover fixing cylinder, after the end cover is in threaded connection with the side surface of the end cover fixing cylinder, the flange plate is connected with the end cover, the other flange plate is in threaded connection with the threads with opposite directions, the two flange plates penetrate through the two flange plates through the fixing bolt and are fixedly connected with the flange plates, the two flange plates which are in threaded connection with the side surface of the end cover fixing cylinder can only rotate towards one direction simultaneously under the action of the fixing bolt, but the distance between the two flange plates is, therefore, the two flanges are limited in fixed positions and cannot move, so that the end cover connected through the flanges cannot be loosened from the end cover fixing barrel.

2. This fixing device of aerogenerator end cover, threaded connection has locknut on the fixing bolt of two ring flanges, with the rigidity back of two ring flanges, rotates locknut to the nut end that is close to fixing bolt the utility model discloses when the device used, the vibrations effect that the device produced is on fixing bolt, and threaded connection between fixing bolt and the ring flange probably takes place not hard up because locknut supports tight ring flange and restricts the distance between nut and the locknut for fixing bolt can not withdraw from in the screw of ring flange side, thereby prevents fixing bolt and takes place not hard up because vibrations.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic view of the connection of the end cap fixing cylinder of the present invention;

fig. 4 is an explosion diagram of the end cap fixing cylinder of the present invention.

In the figure: 1. a rotating shaft; 2. a magnetic field box; 3. an end cap fixing cylinder; 301. a transition cylinder; 302. a threaded barrel; 4. a first flange plate; 5. an end cap; 6. a second flange plate; 7. fixing the bolt; 8. a limit bearing; 9. fixing the bearing; 10. fixing grooves; 11. a bolt; 12. a first thread; 13. a second thread; 14. a locknut; 15. and (5) sealing rings.

Detailed Description

The embodiment of the utility model discloses fixing device of aerogenerator end cover, as shown in fig. 1-4, including pivot 1, end cover solid fixed cylinder 3 and end cover 5, pivot 1 through connection has magnetic field case 2, the solid fixed cylinder 3 of side fixedly connected with end cover of magnetic field case 2, the side threaded connection of the solid fixed cylinder 3 of end cover has first ring flange 4, the side threaded connection that the solid fixed cylinder 3 of end cover kept away from 2 one end of magnetic field case has end cover 5, the side fixedly connected with second ring flange 6 of end cover 5, the side of second ring flange 6 is run through and is pegged graft and have fixing bolt 7, fixing bolt 7 run through second ring flange 6 and with first ring flange 4 threaded connection.

The side fixedly connected with of pivot 1 is spacing bearing 8, spacing bearing 8 outer wall and magnetic field case 2's lateral wall fixed connection, fixed bearing 9 has been cup jointed to the side that pivot 1 is close to 5 one ends of end cover, effect through spacing bearing 8 and fixed bearing 9 is with pivot 1 restriction at certain limit internal rotation, prevent that single-point is fixed to lead to pivot 1 acutely to rock and destroy generator inner structure, the inner wall that magnetic field case 2 one end was kept away from to end cover solid fixed cylinder 3 is seted up the fixed slot 10 with the 9 looks adaptations of fixed bearing, the fixed inner wall that cup joints at fixed slot 10 of fixed bearing 9, the inner wall mortise and tenon of fixed slot 10 is connected with bolt 11, bolt 11 prevents that fixed bearing 9 from taking place not hard up the.

The end cover fixing barrel 3 comprises a transition barrel 301 and a thread barrel 302, the two ends of the transition barrel 301 are symmetrically and fixedly connected with the thread barrels 302, the outer diameter of the transition barrel 301 is smaller than the outer diameter of the thread barrels 302, the two thread barrels 302 are completely consistent, the two ends of the transition barrel 301 are symmetrically and fixedly connected according to the symmetrical plane of the transition barrel 301, the side face of the thread barrel 302 fixedly connected with the magnetic field box 2 is provided with a first thread 12, and the side face of the thread barrel 302 far away from the magnetic field box 2 is provided with a second thread 13 opposite to the first thread 12 in direction.

The side of fixing bolt 7 just is located

first ring flange

4 and 6 middle threaded connection of second ring flange have lock nut 14, four fixing bolt 7 symmetries set up the side at second ring flange 6, and the screw hole with 7 looks adaptations of fixing bolt is seted up to one side that first ring flange 4 is close to second ring flange 6, the screw hole does not run through first ring flange 4, the side of pivot 1 just is located the fixed cover of inner wall that 3 is close to 2 one ends of magnetic field case of end cover and has been connect sealing washer 15, the interior bottom surface of end cover 5 also is provided with sealing washer 15.

The rotating shaft 1 penetrates through the side wall of the magnetic field box 2 and extends to the inner side of the end cover fixing cylinder 3, and the inner diameter of the end cover fixing cylinder 3 is matched with the rotating shaft 1.

The working principle is as follows: the utility model discloses the device is at the in-service use in-process, pivot 1 runs through magnetic field case 2 and wears out from the solid fixed cylinder of end cover 3, spacing bearing 8's outer wall and magnetic field case 2's inner wall fixed connection, the fixed fixing bearing 9 that cup joints in the side that is close to end cover 5 one end in pivot 1, guarantee rocking of 1 free rotation of pivot and 8 cooperation restriction pivots 1, after having cup jointed fixing bearing 9, with 11 fixed connection of bolt to 10 inner walls of fixed slot, it is spacing to fixed bearing 9 formation, prevent that fixing bearing 9 from droing and causing rocking of pivot 1.

The first flange plate 4 is connected with the side surface of the threaded cylinder 302 close to the magnetic field box 2 through a threaded cylinder 302 and a transition cylinder 301 in a threaded mode, and the end cover 5 is connected with the side surface of the end cover fixing cylinder 3 through a second thread 13 arranged on the side surface of the threaded cylinder 302 in a threaded mode.

After screwing up end cover 5, fixing bolt 7 runs through fixed connection at the second ring flange 6 of 5 sides of end cover, adjusts the meshing position of first ring flange 4 and first screw 12 according to fixing bolt 7 that 6 sides of second ring flange were pegged graft, adjusts the side of first ring flange 4 with fixing bolt 7 threaded connection to first ring flange 4 behind first ring flange 4 and the corresponding department of fixing bolt 7, fixes lock nut 14 to hugging closely second ring flange 6 department, the utility model discloses the equipment process is accomplished to the device.

In the practical use process of the device of the utility model, wind energy acts on one end of the rotating shaft 1, the wind energy is converted into mechanical energy for pushing the rotating shaft 1 to rotate, the rotation of the rotating shaft 1 enables the closed coil fixed on the side surface of the rotating shaft 1 to rotate in the magnetic field box 2 and do cutting magnetic induction line motion, induced current is generated in the closed coil to generate electricity, the rotating shaft 1 is limited to rotate through the action of the limit bearing 8 and the fixed bearing 9, the large-scale shaking and damage to the generator can not occur, the shaking is conducted to the end cover 5 through the limit bearing 8 and the fixed bearing 9, the continuous vibration enables the threaded connection to be loosened, the loose connection between the end cover 5 and the end cover fixed cylinder 3 is limited by the bolt connection of the first flange 4 and the second flange 6, the front end cover 5 can not be loosened when the distance between the first flange 4 and the second flange 6 is not changed, and the reverse directions of the first flange 4 and the second flange 6 are opposite because, and relative movement cannot occur because of the limit of the fixing bolt 7.

Vibrations are used in during threaded connection between fixing bolt 7 and first ring flange 4, fixing bolt 7 side threaded connection's locknut 14 restriction fixing bolt 7's length, make fixing bolt 7 can not withdraw from with first ring flange 4's threaded connection state, consequently, change front end housing 5 can not take place not hard up in first ring flange 4 and second ring flange 6 position, the distance can not change between first ring flange 4 and the second ring flange 6 before locknut 14 takes place not hard up, so the utility model discloses the effectual device that has restricted vibrations is to end housing 5 department threaded connection's influence.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fixing device of aerogenerator end cover, includes pivot (1), the fixed section of thick bamboo of end cover (3) and end cover (5), its characterized in that: the magnetic field box (2) is connected to the rotating shaft (1) in a penetrating mode, an end cover fixing cylinder (3) is fixedly connected to the side face of the magnetic field box (2), a first flange plate (4) is connected to the side face of the end cover fixing cylinder (3) in a threaded mode, an end cover (5) is connected to the side face of one end, far away from the magnetic field box (2), of the end cover fixing cylinder (3), a second flange plate (6) is fixedly connected to the side face of the end cover (5), a fixing bolt (7) is connected to the side face of the second flange plate (6) in a penetrating and inserting mode, and the fixing bolt (7) penetrates through the second flange plate (6) and is connected with.

2. The fixing device of the end cover of the wind driven generator as claimed in claim 1, wherein: the side face of the rotating shaft (1) is fixedly connected with a limiting bearing (8), and the outer wall of the limiting bearing (8) is fixedly connected with the side wall of the magnetic field box (2).

3. The fixing device of the end cover of the wind driven generator as claimed in claim 1, wherein: the side that pivot (1) is close to end cover (5) one end is fixed to be cup jointed fixing bearing (9), the inner wall that magnetic field case (2) one end was kept away from in end cover solid fixed cylinder (3) is seted up with fixed bearing (9) looks adaptation fixed slot (10), the inner wall mortise and tenon of fixed slot (10) is connected with bolt (11).

4. The fixing device of the end cover of the wind driven generator as claimed in claim 1, wherein: the end cover fixing barrel (3) comprises a transition barrel (301) and a thread barrel (302), the two ends of the transition barrel (301) are symmetrically and fixedly connected with the thread barrel (302), the outer diameter of the transition barrel (301) is smaller than that of the thread barrel (302), a first thread (12) is arranged on the side surface of the thread barrel (302) fixedly connected with the magnetic field box (2), and a second thread (13) opposite to the first thread (12) in direction is arranged on the side surface of the thread barrel (302) far away from the magnetic field box (2).

5. The fixing device of the end cover of the wind driven generator as claimed in claim 1, wherein: the side of fixing bolt (7) just is located first ring flange (4) and second ring flange (6) middle threaded connection has lock nut (14), the side of pivot (1) just is located the fixed section of thick bamboo of end cover (3) and is close to the inner wall fixed the cup jointing of magnetic field case (2) one end and has sealed washer (15), the interior bottom surface of end cover (5) also is provided with sealed washer (15).

6. The fixing device of the end cover of the wind driven generator as claimed in claim 1, wherein: the rotating shaft (1) penetrates through the side wall of the magnetic field box (2) and extends to the inner side of the end cover fixing cylinder (3), and the inner diameter of the end cover fixing cylinder (3) is matched with the rotating shaft (1).

7. The fixing device of the end cover of the wind driven generator as claimed in claim 1, wherein: the four fixing bolts (7) are symmetrically arranged on the side face of the second flange plate (6), and threaded holes matched with the fixing bolts (7) are formed in one side, close to the second flange plate (6), of the first flange plate (4).