CN218816788U

CN218816788U - Impeller fixing device for ensuring vertical downward of one blade

Info

Publication number: CN218816788U
Application number: CN202222795371.6U
Authority: CN
Inventors: 解殿平
Original assignee: Runyang Energy Technology Co ltd
Current assignee: Runyang Energy Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-04-07
Anticipated expiration: 2032-10-21

Abstract

The utility model belongs to the technical field of aerogenerator's technique and specifically relates to a guarantee perpendicular decurrent impeller fixing device of a blade, this fixing device is used for fixing impeller locking plate and main shaft bearing seat, this fixing device includes support piece and dieback bolt, support piece is provided with two at least, two support piece set up respectively in the both sides of main shaft bearing seat, every support piece all can dismantle fixed connection through connecting piece and impeller locking plate, the part that support piece kept away from impeller locking plate is fixed through dieback bolt and main shaft bearing seat. The utility model discloses an impeller fixing device when a blade is perpendicular downwards, utilizes the tight driving chain of high-speed hydraulic tong clamp in the generating set, makes the impeller be in quiescent condition, recycles two support piece and fixes impeller locking plate and main shaft bearing frame to guarantee that a blade is perpendicular downwards when overhauing the blade, reached the purpose that reduces the outer blade maintenance construction safety work danger coefficient of a tower section of thick bamboo.

Description

Impeller fixing device for ensuring vertical downward movement of one blade

Technical Field

The utility model belongs to the technical field of aerogenerator's technique and specifically relates to a guarantee perpendicular decurrent impeller fixing device of a blade.

Background

At present, when a wind power impeller is butted with a main shaft of a main engine transmission chain, although the connection angle position of each brand is different, a complete machine supplier has the requirement on site that one blade is required to be in a vertical downward position after the impeller is locked. And the impeller locking disk is provided with a plurality of bolt holes and obvious blade position marks.

As the installed capacity of the wind driven generator is continuously increased, the wind power main engine strives for a window period in the hoisting process, particularly during a wind power rush installation tide; in addition, the process attention degree of the on-site hoisting work on unit installation is not enough, so that the impeller and a transmission chain main shaft are in butt joint at random, and no blade stays at the designed vertical position after the impeller is locked during subsequent maintenance, and the blade deviates from the vertical direction by too large angle, so that the risk coefficient of safe operation of maintenance and construction of the outer blade of the tower is large.

In view of the foregoing, there is a need for an impeller mounting apparatus that ensures that a blade is facing vertically downward.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guarantee blade perpendicular decurrent impeller fixing device to the technical problem that the blade that exists among the solution prior art can't lead to a tower section of thick bamboo outer blade maintenance construction safety work danger coefficient big perpendicularly downwards.

In order to solve the technical problem, the utility model provides a pair of guarantee perpendicular decurrent impeller fixing device of a blade, this fixing device is used for fixed with impeller locking dish and main shaft bearing frame, and this fixing device includes support piece and top dead bolt, and support piece is provided with two at least, and two support pieces set up respectively in the both sides of main shaft bearing frame, and fixed connection can all be dismantled with the impeller locking dish through the connecting piece to every support piece, and the part that the impeller locking dish was kept away from to support piece is fixed through top dead bolt and main shaft bearing frame.

Through the improved technical scheme, the blade maintenance is carried out on the installed wind generating set, when one blade is found to be vertical downward, the impeller locking pin cannot be inserted into the impeller locking disc hole, the transmission chain is clamped by high-speed hydraulic tongs in the generating set at the moment, the impeller is in a static state, then the two supporting pieces are moved to the two sides of the main shaft bearing seat, the supporting pieces are fixed with the impeller locking disc through the connecting pieces, then the part of the supporting pieces, far away from the impeller locking disc, is fixed with the main shaft bearing seat through the top dead bolts, the impeller locking disc is fixed with the main shaft bearing seat through the two supporting pieces, the blade is guaranteed to be vertical downward, and the purpose of reducing the risk coefficient of maintenance and construction safety operation of the blade outside the tower is achieved.

Further, support piece includes riser and diaphragm, riser and diaphragm fixed connection, and fixed connection can be dismantled with impeller locking plate to the riser, and the top dead bolt passes diaphragm and main shaft bearing seat butt with diaphragm threaded connection, top dead bolt.

Through above-mentioned modified technical scheme, when using support piece, at first remove support piece to between impeller locking dish and the main shaft bearing frame, then make the diaphragm parallel with the last plane of main shaft bearing frame, it is fixed with riser and impeller locking dish to recycle the connecting piece again, then rotate the top dead bolt and pass the diaphragm and support tightly with the main shaft bearing frame, repeat another support piece of above-mentioned step installation for two support pieces are fixed with impeller locking dish and main shaft bearing frame.

Furthermore, one side of the vertical plate close to the impeller locking disc is fixedly connected with a protruding part, and the protruding part is in inserting fit with a round hole in the impeller locking disc.

Furthermore, the protruding part is in a round table shape, and the lower bottom surface of the round table is fixedly connected with the vertical plate.

Through above-mentioned modified technical scheme, through the bellying that sets up the round platform type, make the riser insert in the impeller locking dish, carry out the location of riser and impeller locking dish position, then reuse connecting piece connects both, can promote the convenience when riser and impeller locking dish are connected, promote the stability after both are connected simultaneously.

Furthermore, a reinforcing rib is arranged between the transverse plate and the vertical plate, and two ends of the reinforcing rib are fixedly connected with the transverse plate and the vertical plate respectively.

Through the improved technical scheme, the reinforcing ribs are arranged to enhance the connection strength between the transverse plate and the vertical plate, and the bearing performance of the supporting piece is improved.

Further, a locknut is arranged between the top dead bolt and the transverse plate, the locknut is in threaded connection with the top dead bolt, and the locknut is abutted to the transverse plate.

Through above-mentioned modified technical scheme, utilize locknut lock dead bolt and diaphragm, prevent that the impeller from rocking slightly and causing the not hard up emergence of dead bolt to become flexible.

Furthermore, the connecting piece includes connecting bolt and coupling nut, and connecting bolt's one end passes behind round hole and the support piece on the impeller locking dish and is connected with coupling nut threaded connection.

According to the improved technical scheme, when the connecting piece is used, the vertical plate is abutted to the impeller locking disc, then the connecting bolt is moved to penetrate through the impeller locking disc and the supporting piece and then is in threaded connection with the connecting nut, and the impeller locking disc and the supporting piece are fixed through the connecting bolt and the connecting nut.

Furthermore, a connecting fixing piece is arranged between the bolt head of the connecting bolt and the impeller locking disc, a through hole is formed in the connecting fixing piece and communicated with the round hole in the impeller locking disc, and the connecting bolt penetrates through the through hole in the connecting fixing piece.

Through above-mentioned modified technical scheme, through setting up the stationary blade, can reduce to use the connecting piece when fixed, connecting bolt's bolt head is to the wearing and tearing of impeller locking dish, avoids connecting bolt's bolt head to block the round hole on the impeller locking dish under the effect of the power simultaneously.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model provides a guarantee blade vertical decurrent impeller fixing device, carry out the blade maintenance to the wind generating set that has installed and accomplished, find that impeller stop pin can't insert impeller locking dish downthehole when a blade is perpendicular downward, utilize the high-speed hydraulic tong in the generating set to press from both sides tight driving chain at this moment, make the impeller be in quiescent condition, then remove two support piece to the both sides of main shaft bearing frame, it is fixed with impeller locking dish through the connecting piece with support piece, then the part that the support piece kept away from impeller locking dish is fixed with the main shaft bearing frame through the top dead bolt, make two support piece fix impeller locking dish and main shaft bearing frame, thereby guarantee that a blade is perpendicular downward, the purpose of reducing the safe operation danger coefficient of blade maintenance construction outside the tower section of thick bamboo has been reached; and the impeller at any angle can be positioned by adjusting the screwing length of the top dead bolt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an impeller fixing device for ensuring a blade to be vertically downward according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a cross-sectional view showing the boss.

Reference numerals are as follows:

1. an impeller locking disk; 11. a circular hole; 2. a main shaft bearing seat; 3. a support member; 31. a transverse plate; 32. a vertical plate; 321. a boss portion; 4. the bolt is died; 5. a locknut; 6. a connecting member; 61. a connecting bolt; 62. a connecting nut; 7. connecting a fixing sheet; 8. and (5) reinforcing ribs.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The present invention will be further explained with reference to specific embodiments.

As shown in fig. 1 and fig. 2, the fixing device for an impeller that ensures a vertical downward movement of a blade provided in this embodiment is used to fix an impeller locking disk 1 and a spindle bearing seat 2, and includes a supporting member 3 and a top dead bolt 4, where the supporting member 3 is in an L-shaped configuration, the supporting member 3 is at least provided with two supporting members 3, the two supporting members 3 are respectively disposed on two sides of the spindle bearing seat 2, a vertical portion of each supporting member 3 is detachably and fixedly connected to the impeller locking disk 1 through a connecting member 6, and a horizontal portion of the supporting member 3 is fixed to the spindle bearing seat 2 through the top dead bolt 4.

As shown in fig. 2 and 3, the supporting member 3 includes a vertical plate 32 and a horizontal plate 31, the vertical plate 32 is vertically disposed, the horizontal plate 31 is horizontally disposed, the bottom end of the vertical plate 32 is fixedly connected with one end of the horizontal plate 31, so that the vertical plate 32 and the horizontal plate 31 are L-shaped, and a reinforcing rib 8 is disposed between the horizontal plate 31 and the vertical plate 32, in this embodiment, the reinforcing rib 8 is a right-angled triangular reinforcing rib 8, and two right-angled sides of the reinforcing rib 8 are respectively fixedly connected with the horizontal plate 31 and the vertical plate 32; the vertical plate 32 is detachably and fixedly connected with the impeller locking disc 1, one side of the vertical plate 32 close to the impeller locking disc 1 is fixedly connected with a boss 321, the boss 321 is in inserting fit with the round hole 11 on the impeller locking disc 1, the boss 321 is in a round table shape, and the lower bottom surface of the round table is fixedly connected with the vertical plate 32; the top dead bolt 4 and diaphragm 31 threaded connection, top dead bolt 4 pass diaphragm 31 and main shaft bearing frame 2 butt, are provided with lock nut 5 between top dead bolt 4 and the diaphragm 31, lock nut 5 and top dead bolt 4 threaded connection, lock nut 5 and diaphragm 31 butt.

As shown in fig. 2 and 3, the connecting member 6 includes a connecting bolt 61 and a connecting nut 62, one end of the connecting bolt 61 passes through a boss 321 located in the circular hole 11 of the impeller locking disk 1 and the supporting member 3 and then is connected with the connecting nut 62 by screw threads, one side of the impeller locking disk 1, which is far away from the vertical plate 32, is provided with a connecting fixing piece 7, a through hole is formed in the connecting fixing piece 7, the through hole is communicated with the circular hole 11 of the impeller locking disk 1, and the connecting bolt 61 passes through the through hole on the connecting fixing piece 7.

The embodiment of the utility model provides a guarantee that blade vertical decurrent impeller fixing device's implementation principle does: firstly, when one blade is adjusted to be vertically downward, a high-speed hydraulic clamp in a generator set is utilized to clamp a transmission chain, so that an impeller is in a static state; then moving the two supports 3 to two sides of the main shaft bearing seat 2, inserting the convex part 321 on the vertical plate 32 into the circular hole 11 of the impeller locking disc 1, then pushing the vertical plate 32 to rotate around the axis of the convex part 321, so that the horizontal plate 31 is parallel to the main shaft bearing seat 2, then placing the connecting and fixing piece 7 on one side of the impeller locking disc 1 away from the vertical plate 32, and then moving one end of the connecting bolt 61 to sequentially penetrate through the through hole on the connecting and fixing piece 7, the convex part 321 in the circular hole 11 on the impeller locking disc 1 and the supports 3, and then connecting the connecting bolt with the connecting nut 62 in a threaded manner; then, the top dead bolt 4 is rotated to penetrate through the transverse plate 31 to be tightly abutted against the main shaft bearing seat 2, and then the locknut 5 is rotated to be abutted against the transverse plate 31, so that the two supporting pieces 3 fix the impeller locking disk 1 and the main shaft bearing seat 2, one blade is ensured to be vertically downward, and the aim of reducing the danger coefficient of maintenance construction safety operation of the blade outside the tower barrel is fulfilled; and the impeller at any angle can be positioned by adjusting the screwing length of the top dead bolt 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. The utility model provides a guarantee impeller fixing device that a blade is perpendicular decurrent, a serial communication port, this fixing device is used for fixing impeller locking dish (1) and main shaft bearing seat (2), this fixing device includes support piece (3) and died bolt (4), support piece (3) are provided with two at least, two support piece (3) set up respectively in the both sides of main shaft bearing seat (2), every support piece (3) all can dismantle fixed connection through connecting piece (6) and impeller locking dish (1), the part that impeller locking dish (1) was kept away from in support piece (3) is fixed with main shaft bearing seat (2) through died bolt (4).

2. The impeller fixing device ensuring the vertical downward direction of one blade is characterized in that the supporting piece (3) comprises a vertical plate (32) and a transverse plate (31), the vertical plate (32) is fixedly connected with the transverse plate (31), the vertical plate (32) is detachably and fixedly connected with the impeller locking disc (1), the top dead bolt (4) is in threaded connection with the transverse plate (31), and the top dead bolt (4) penetrates through the transverse plate (31) to abut against the main shaft bearing seat (2).

3. The impeller fixing device for ensuring the vertical downward direction of one blade according to claim 2, characterized in that a convex part (321) is fixedly connected to one side of the vertical plate (32) close to the impeller locking disc (1), and the convex part (321) is in inserted fit with the round hole (11) on the impeller locking disc (1).

4. The device for fixing an impeller with a blade facing vertically downward as claimed in claim 3, wherein said boss (321) is of a truncated cone shape, and a lower bottom surface of the truncated cone is fixedly connected to the vertical plate (32).

5. The impeller fixing device for ensuring the vertical downward direction of one blade is characterized in that a reinforcing rib (8) is arranged between the transverse plate (31) and the vertical plate (32), and the two ends of the reinforcing rib (8) are fixedly connected with the transverse plate (31) and the vertical plate (32) respectively.

6. The impeller fixing device for ensuring the vertical downward direction of one blade as claimed in claim 2, wherein a locknut (5) is arranged between the top dead bolt (4) and the transverse plate (31), the locknut (5) is in threaded connection with the top dead bolt (4), and the locknut (5) is abutted against the transverse plate (31).

7. The impeller fixing device for ensuring the vertical downward direction of one blade according to claim 1, wherein the connecting member (6) comprises a connecting bolt (61) and a connecting nut (62), and one end of the connecting bolt (61) passes through the circular hole (11) of the impeller locking disk (1) and the supporting member (3) and then is in threaded connection with the connecting nut (62).

8. The impeller fixing device for ensuring that one blade faces vertically downwards according to claim 7, wherein a connecting fixing piece (7) is arranged between the bolt head of the connecting bolt (61) and the impeller locking disc (1), a through hole is formed in the connecting fixing piece (7) and communicated with the round hole (11) in the impeller locking disc (1), and the connecting bolt (61) penetrates through the through hole in the connecting fixing piece (7).