CN116241509A - Blade connecting assembly, blade and fan - Google Patents
Blade connecting assembly, blade and fan Download PDFInfo
- Publication number
- CN116241509A CN116241509A CN202310004523.2A CN202310004523A CN116241509A CN 116241509 A CN116241509 A CN 116241509A CN 202310004523 A CN202310004523 A CN 202310004523A CN 116241509 A CN116241509 A CN 116241509A
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- CN
- China
- Prior art keywords
- blade
- reinforcing
- flange
- reinforcing seat
- bolt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the field of blade connection, and provides a blade connection assembly, a blade and a fan, wherein the blade connection assembly comprises: the flange plate is provided with a plurality of first connecting holes at intervals along the circumferential direction; the reinforcing seat is arranged at the end part of the flange plate, a plurality of second connecting holes are formed in the reinforcing seat along the circumferential direction of the flange plate at intervals, and the second connecting holes are coaxial with part of the first connecting holes. The blade connecting component provided by the invention has the advantages that the reinforcing seat is arranged at the end part of the flange plate, and the first connecting hole of the flange plate is coaxial with the second connecting hole of the reinforcing seat, so that the connecting strength and the fatigue resistance of the blade and the hub are improved.
Description
Technical Field
The invention relates to the technical field of blade connection, in particular to a blade connection assembly, a blade and a fan.
Background
The fan blade is connected with the complete machine of fan through the blade root connection area of blade, and the current blade root connection area passes through the ring flange to be connected with the wheel hub of fan, along with the long exhibition of blade, the ultimate load and the fatigue damage increase that the bolt of blade root connection area received can't satisfy the long exhibition demand of blade.
Disclosure of Invention
The invention provides a blade connecting assembly, a blade and a fan, which are used for solving the defect that the connecting strength and the anti-fatigue strength of the blade are insufficient in the prior art, realizing the enhancement of the height of a flange plate by a reinforcing seat, and further pertinently enhancing the connecting strength and the anti-fatigue strength of the blade.
The present invention provides a blade connection assembly comprising:
the flange plate is provided with a plurality of first connecting holes at intervals along the circumferential direction;
the reinforcing seat is arranged at the end part of the flange plate, a plurality of second connecting holes are formed in the reinforcing seat at intervals along the circumferential direction of the flange plate, and the second connecting holes are coaxial with part of the first connecting holes.
According to the blade connecting assembly provided by the invention, the two side ends of the reinforcing seat are provided with the arc-shaped grooves.
According to the blade connecting assembly provided by the invention, the arc length of the reinforcing seat is smaller than or equal to the perimeter of the flange plate.
According to the blade connecting assembly provided by the invention, the reinforcing seat comprises at least two reinforcing sections, the adjacent reinforcing sections are arranged at intervals, and the reinforcing sections are all arranged at the end parts of the same side of the flange plate.
According to the blade connecting assembly provided by the invention, the reinforcing seat comprises a first reinforcing section and a second reinforcing section, and the first reinforcing section is opposite to the second reinforcing section.
The invention also provides a blade comprising: the blade root embedded assembly and the blade connecting assembly are arranged on the blade body;
one part of the blade root embedded assembly is connected with the flange plate, and the other part of the blade root embedded assembly is sequentially connected with the reinforcing seat and the flange plate.
According to the blade provided by the invention, the blade root embedded assembly comprises the bolt sleeve mechanism and the wedge-shaped strips, wherein the bolt sleeve mechanism and the wedge-shaped strips are alternately distributed to form a closed loop structure, and the length of the bolt sleeve mechanism connected with the flange plate is longer than that of the bolt sleeve mechanism connected with the reinforcing seat;
wherein the length of the wedge-shaped strip contacted with the flange plate is larger than the length of the wedge-shaped strip contacted with the reinforcing seat.
According to the blade provided by the invention, the bolt sleeve mechanism comprises a bolt sleeve body and a foam strip, wherein the bolt sleeve body is arranged between the foam strip and the connecting assembly;
the length of the bolt sleeve body connected with the flange plate is longer than that of the bolt sleeve body connected with the reinforcing seat.
According to the blade provided by the invention, the blade further comprises a connecting bolt, one part of the connecting bolt penetrates through the flange plate and is connected with the blade root embedded assembly, and the other part of the connecting bolt penetrates through the flange plate, the reinforcing seat and the blade root embedded assembly in sequence.
According to the blade provided by the invention, the width of the reinforcing seat is larger than the diameter of the bolt sleeve body.
The invention also provides a fan, which comprises the blade connecting assembly;
or, the fan comprises the blade.
According to the blade connecting assembly provided by the invention, the reinforcing seat is arranged at the end part of the flange, and the first connecting hole of the flange and the second connecting hole of the reinforcing seat are coaxial, so that the connection strength and the fatigue resistance of the blade and the hub are improved.
Further, in the fan and the blade provided by the invention, the blade connecting assembly is provided, so that various advantages are provided.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a blade provided by the present invention;
FIG. 2 is a schematic view of a partial structure of a blade according to the present invention;
FIG. 3 is a perspective view of the structure of the connection assembly provided by the present invention;
FIG. 4 is a schematic view of a blade according to a second embodiment of the present invention.
Reference numerals:
100: embedding a blade root assembly; 101: a bolt sleeve body; 102: wedge-shaped strips; 103: a foam strip; 110: a bolt sleeve mechanism; 200: a blade connection assembly; 201: a flange plate; 202: a reinforcing seat; 203: an arc-shaped groove; 204: a first connection hole; 205: and a second connection hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of 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 describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Embodiments of the present invention are described below with reference to fig. 1 to 4. It is to be understood that the following are only illustrative embodiments of the present invention and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, the present invention provides a blade attachment assembly comprising: the flange 201 and the reinforcing seat 202, wherein the flange 201 is provided with a plurality of first connecting holes 204 at intervals along the circumferential direction; the reinforcing seat 202 is disposed at an end portion of the flange 201, and the reinforcing seat 202 is provided with a plurality of second coupling holes 205 spaced apart in a circumferential direction of the flange 201, and the second coupling holes 205 are coaxial with a portion of the first coupling holes 204.
In other words, the flange 201 is provided with the first connecting hole 204, the reinforcing seat 202 is provided with the second connecting hole 205, the axis of the second connecting hole 205 is collinear with the axis of the first connecting hole 204, the first set of bolts penetrate through the first connecting hole 204, the second set of bolts penetrate through the first connecting hole 204 and the second connecting hole 205, and the apertures of the first connecting hole 204 and the second connecting hole 205 are the same.
In addition, in other embodiments of the present invention, hollow tubes are embedded in the first and second connection holes 204 and 205. Thereby enhancing the connection strength between the reinforcing seat 202 and the flange seat.
Wherein, the hollow tube disposed in the second connecting hole 205 may penetrate through the first connecting hole 204 and the second connecting hole 205, so as to improve the connection stability between the reinforcing seat 202 and the flange 201.
As shown in fig. 3 and 4, in other embodiments of the present invention, both side ends of the reinforcing seat 202 are provided with arc-shaped grooves 203, and the arc-shaped grooves 203 are adapted to be engaged with the bolt housing body 101. Specifically, the reinforcing seat 202 has a certain radian and a certain length, the two sides of the reinforcing seat 202 are provided with arc-shaped grooves 203 along the axial direction of the second connecting hole 205, and the arc surface formed by the arc-shaped grooves 203 is attached to the arc surface of the outer wall of the bolt sleeve body 101.
The blade root is pre-buried to the laminating of strengthening seat 202's arc recess 203 and bolt cover body 101, avoids strengthening seat 202 and wedge strip 102 rigidity difference to lead to wedge strip 102 fracture, increases simultaneously and connects rigidity between blade coupling assembling 200 and the bolt cover body 101, simple structure, the processing of being convenient for.
Specifically, in an alternative embodiment of the present invention, the arc length of reinforcing seat 202 is less than or equal to the circumference of flange 201.
For example, the reinforcing seat 202 is provided on a partial circumference of the end portion of the flange 201, and the reinforcing seat 202 reinforces the connection strength between the flange 201 and a part of the blade root pre-buried assembly 100. In other words, the reinforcing seat 202 is provided in the height direction of the flange 201.
The load of blade root department of blade is comparatively complicated, and the load of different positions department has certain difference, and in fan blade actual operation, the fracture phenomenon easily appears in the bolt of blade and hub front and back edge junction area, and increase flange thickness in whole circle, perhaps increase bolted connection number, can wholly increase the weight of blade, improves the cost of blade. The invention optimizes the flange 201 at the connection of the blade root, locally increases the height of the blade connecting assembly 200 in the weak area of the connection of the blade root, such as the connection area of the front edge and the rear edge of the blade and the hub, thereby improving the connection strength of the blade connecting assembly 200 and the hub and reducing the weight and the cost of the blade as much as possible.
In one embodiment of the present invention, the reinforcing seat 202 includes at least two reinforcing segments, and the adjacent reinforcing segments are disposed at intervals, and the reinforcing segments are disposed at the same side end of the flange 201.
With continued reference to fig. 3, in an alternative embodiment of the invention, the reinforcement socket 202 includes a first reinforcement section and a second reinforcement section, the first reinforcement section being disposed at the same lateral end of the flange 201 as the second reinforcement section. For example, the bolts in the connection areas between the blade and the front and rear edges of the hub are easily broken, and therefore, the first reinforcing section and the second reinforcing section are added to the upper end of the flange 201 corresponding to the connection areas between the blade and the front and rear edges of the hub. The arc lengths of the first reinforcing section and the second reinforcing section can be the same or different, and the heights and the widths of the first reinforcing section and the second reinforcing section can be the same or different. The width of the reinforcing seat 202 is smaller than the width of the flange 201.
Of course, in other embodiments of the invention, the reinforcement seat 202 may also include a plurality of reinforcement sections, each of which is spaced apart from the other.
With continued reference to fig. 4, in another alternative embodiment of the invention, the width of the reinforcement socket 202 is greater than the diameter of the bolt housing body 101. In other words, the width of the reinforcing seat 202 is greater than or equal to the width of the wedge-shaped strip 102, so that the reinforcing seat 202 can be provided with the second connecting hole 205 and can better support the bolt sleeve body 101 and the wedge-shaped strip 102 along the width direction.
As shown in fig. 1 and 2, the present invention provides a blade including: the blade root embedded assembly 100 and the blade connecting assembly 200; the blade connecting assembly 200 comprises a flange 201 and a reinforcing seat 202, the reinforcing seat 202 is arranged at the end part of the flange 201, one part of the blade root embedded assembly 100 is connected with the flange 201, and the other part of the blade root embedded assembly 100 is sequentially connected with the reinforcing seat 202 and the flange 201.
Through carrying out the part and setting up the enhancement seat 202 at the tip of ring flange 201, the pre-buried subassembly of blade root 100 is connected with enhancement seat 202 and ring flange 201 in proper order in the weak region of connection, and then the specific position joint strength and the antifatigue strength of the pre-buried subassembly of blade root 100 of targeted improvement and wheel hub, greatly reduced the weight and the cost of blade.
That is, the blade root embedded assembly 100 is tightly connected around the circumferential direction of the flange 201, the blade root embedded assembly 100 is connected to the end of the flange 201, and the reinforcing seat 202 reinforces the connection strength between the flange 201 and a part of the blade root embedded assembly 100. In other words, the reinforcing seat 202 is disposed in the height direction of the flange 201, and the blade root pre-buried assembly 100 is connected to the flange 201 and the reinforcing seat 202 along the height direction of the flange 201 and the height direction of the reinforcing seat 202, respectively.
As shown in fig. 3, the reinforcing seat 202 and the flange 201 may be integrally formed, the reinforcing seat 202 may be disposed at an end of the flange 201 in a plurality of segments, and the reinforcing portion may be obtained in a simulation manner for a local area. The radian of the reinforcing seat 202 is matched with that of the flange 201, and the height and thickness of the reinforcing seat 202 can be obtained through specific simulation calculation.
With continued reference to FIG. 2, in one embodiment of the present invention, the blade root pre-buried assembly 100 includes a bolt sleeve mechanism 110 and a wedge bar 102, the bolt sleeve mechanism 110 and the wedge bar 102 are alternately distributed to form a closed loop structure, and the length of the bolt sleeve mechanism 110 connected with the flange 201 is greater than the length of the bolt sleeve mechanism 110 connected with the reinforcing seat 202; wherein the length of the wedge bar 102 in contact with the flange 201 is greater than the length of the wedge bar 102 in contact with the reinforcing seat 202.
Specifically, the bolt sleeve mechanisms 110 and the wedge-shaped strips 102 are closely and alternately arranged along the circumferential direction of the flange 201, that is, the length of the blade root embedded assembly 100 is equal to the circumferential length of the flange 201, and the blade root embedded assembly 100 is in a closed ring shape. The bolt sleeve mechanism 110 is connected with the flange 201 and the reinforcing seat 202, the blade root embedded assembly 100 comprises a first part and a second part, the bolt sleeve mechanism 110 and the wedge-shaped strip 102 of the first part are connected with the end part of the flange 201 in a matched mode, the bolt sleeve mechanism 110 and the wedge-shaped strip 102 of the second part are connected with the end part of the reinforcing seat 202 in a matched mode, and the reinforcing seat 202 is connected with the flange 201 again to carry out local reinforcement.
Because the reinforcing seat 202 is disposed at the end of the flange 201, in order to keep the overall length of the blade root embedded assembly 100 consistent, the lengths of the bolt housing mechanism 110 and the wedge bar 102 in the first portion are greater than those of the bolt housing mechanism 110 and the wedge bar 102 in the second portion. In other words, the difference between the length of the first portion of the bolt housing mechanism 110 and the length of the second portion of the bolt housing mechanism 110 is equal to the height of the reinforcement seat 202; similarly, the difference between the length of the first portion of the wedge strip 102 and the length of the second portion of the wedge strip 102 is equal to the height of the reinforcement socket 202.
As shown in fig. 4, for the wedge bar 102 of the present invention, the left and right sides of the wedge bar 102 are provided with grooves for receiving the bolt housing mechanism 110, and the upper surface of the wedge bar 102 is extended in a wedge shape.
Further, as shown in fig. 2 and 4, in some embodiments of the present invention, the bolt housing mechanism 110 includes a bolt housing body 101 and a foam strip 103, the bolt housing body 101 being interposed between the foam strip 103 and the blade attachment assembly 200; wherein, the length of the bolt sleeve body 101 connected with the flange 201 is longer than the length of the bolt sleeve body 101 connected with the reinforcing seat 202.
The length of the foam strip 103 in the bolt housing mechanism 110 connected with the flange 201 and the length of the foam strip 103 in the bolt housing mechanism 110 connected with the reinforcing seat 202 are the same, so that the length of the bolt housing body 101 connected with the flange 201 is different from the length of the bolt housing body 101 connected with the reinforcing seat 202, and the length of the bolt housing body 101 connected with the flange 201 is greater than the length of the bolt housing body 101 connected with the reinforcing seat 202.
In the bolt housing body 101 of the present invention, the bolt housing body 101 is internally provided with threads, and externally provided with threaded bosses, which have the same inner diameter as the bolt housing body 101 to which the reinforcing seat 202 and the flange 201 are respectively connected.
In addition, in an embodiment of the present invention, the blade further includes a connecting bolt, a part of the connecting bolt penetrates through the flange 201 to be connected with the blade root embedded assembly 100, and another part of the connecting bolt penetrates through the flange 201 and the reinforcing seat 202 to be connected with the blade root embedded assembly 100 in sequence.
That is, the blade root pre-buried assembly 100 is connected with the blade connection assembly 200 through the connection bolts, specifically, the connection bolts include a first set of bolts connecting the longer bolt housing body 101, the flange 201 and the hub, and a second set of bolts connecting the shorter bolt housing body 101, the reinforcing seat 202, the flange 201 and the hub. The lengths of the first group of bolts and the second group of bolts are the same, and the diameters of the first group of bolts and the second group of bolts are the same.
In other words, the upper end of the reinforcing seat 202 is provided with the shorter bolt sleeve body 101 and the shorter wedge-shaped strip 102, and the two side ends of the reinforcing seat 202 are provided with the longer bolt sleeve body 101, and the arc-shaped groove 203 of the reinforcing seat 202 is attached to the longer bolt sleeve body 101, so that the connection is smoother and the connection is more stable. Wherein the arcuate groove 203 may be semi-circular in shape to better encase the bolt housing body 101.
In addition, since the length of the reinforcing seat 202 is greater than the diameter of the bolt housing body 101 and one wedge bar 102 is provided on each of the left and right sides of the bolt housing body 101, the length of the reinforcing seat 202 is equal to or greater than the sum of the outer diameter of the bolt housing body 101 and 2 times the thickness of the wedge bar 102.
The invention also provides a fan, which comprises the blade of the embodiment. The blade connecting assembly 200 is divided into two sections, and consists of a reinforcing seat 202 and a flange 201; through optimizing local increase blade coupling assembling 200 thickness, and then increase the joint strength and the antifatigue intensity of blade root, compare with whole circle increase flange thickness, can effectively reduce blade root weight, reach the effect of upgrading and lowering costs.
According to the blade connecting assembly provided by the invention, the reinforcing seat 202 is arranged at the end part of the flange 201, and the first connecting hole 204 of the flange 201 is coaxial with the second connecting hole 205 of the reinforcing seat 202, so that the connection strength and the fatigue resistance of the blade and the hub are improved.
Further, in the fan and the blade provided by the invention, the blade connecting assembly is provided, so that various advantages are provided.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A blade attachment assembly, comprising:
the flange plate is provided with a plurality of first connecting holes at intervals along the circumferential direction;
the reinforcing seat is arranged at the end part of the flange plate, a plurality of second connecting holes are formed in the reinforcing seat at intervals along the circumferential direction of the flange plate, and the second connecting holes are coaxial with part of the first connecting holes.
2. The blade attachment assembly of claim 1, wherein the reinforcing seat is provided with arcuate grooves at both side ends.
3. A blade attachment assembly according to claim 1 or 2, wherein the arc length of the reinforcing seat is less than or equal to the circumference of the flange.
4. A blade attachment assembly according to claim 3, wherein the reinforcing seat comprises at least two reinforcing sections, adjacent to each other with a spacing therebetween, the reinforcing sections being arranged at the same side end of the flange.
5. The blade attachment assembly of claim 4, wherein the reinforcing seat comprises a first reinforcing section and a second reinforcing section, the first reinforcing section being disposed opposite the second reinforcing section.
6. A blade, comprising: a blade root pre-buried assembly and a blade connection assembly according to any one of claims 1 to 5;
one part of the blade root embedded assembly is connected with the flange plate, and the other part of the blade root embedded assembly is sequentially connected with the reinforcing seat and the flange plate.
7. The blade of claim 6, wherein the blade root pre-embedding assembly comprises bolt sleeve mechanisms and wedge bars, the bolt sleeve mechanisms and the wedge bars are alternately distributed to form a closed loop structure, and the length of the bolt sleeve mechanisms connected with the flange is longer than that of the bolt sleeve mechanisms connected with the reinforcing seats;
wherein the length of the wedge-shaped strip contacted with the flange plate is larger than the length of the wedge-shaped strip contacted with the reinforcing seat.
8. The blade of claim 7, wherein the bolt housing mechanism comprises a bolt housing body and a foam strip, the bolt housing body interposed between the foam strip and the connection assembly;
the length of the bolt sleeve body connected with the flange plate is longer than that of the bolt sleeve body connected with the reinforcing seat.
9. A blade according to any of claims 6 to 8, further comprising a connecting bolt, a portion of the connecting bolt extending through the flange and being connected to the blade root pre-buried component, and another portion of the connecting bolt extending through the flange and the reinforcing seat in sequence and being connected to the blade root pre-buried component.
10. The blade of claim 8, wherein the reinforcement seat has a width that is greater than a diameter of the bolt housing body.
11. A wind turbine comprising the blade attachment assembly of any one of claims 1 to 5;
alternatively, the fan comprises a blade according to any of claims 6 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310004523.2A CN116241509A (en) | 2023-01-03 | 2023-01-03 | Blade connecting assembly, blade and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310004523.2A CN116241509A (en) | 2023-01-03 | 2023-01-03 | Blade connecting assembly, blade and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116241509A true CN116241509A (en) | 2023-06-09 |
Family
ID=86632259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310004523.2A Pending CN116241509A (en) | 2023-01-03 | 2023-01-03 | Blade connecting assembly, blade and fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN116241509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557217A (en) * | 2023-07-10 | 2023-08-08 | 东方电气（天津）风电叶片工程有限公司 | Blade root embedded bolt sleeve mounting structure, blade and wind driven generator |
-
2023
- 2023-01-03 CN CN202310004523.2A patent/CN116241509A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557217A (en) * | 2023-07-10 | 2023-08-08 | 东方电气（天津）风电叶片工程有限公司 | Blade root embedded bolt sleeve mounting structure, blade and wind driven generator |
| CN116557217B (en) * | 2023-07-10 | 2023-11-10 | 东方电气（天津）风电叶片工程有限公司 | Blade root embedded bolt sleeve mounting structure, blade and wind driven generator |
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