CN204402768U - Wind power generating set and air guide sleeve front supporting device thereof - Google Patents
Wind power generating set and air guide sleeve front supporting device thereof Download PDFInfo
- Publication number
- CN204402768U CN204402768U CN201420860295.5U CN201420860295U CN204402768U CN 204402768 U CN204402768 U CN 204402768U CN 201420860295 U CN201420860295 U CN 201420860295U CN 204402768 U CN204402768 U CN 204402768U
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- China
- Prior art keywords
- guide sleeve
- air guide
- joint
- wind power
- power generating
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- Y02E10/722—
Abstract
The utility model discloses a kind of wind power generating set and air guide sleeve front supporting device thereof, this air guide sleeve front supporting device comprises: air guide sleeve; Wheel hub, is arranged on described air guide sleeve inner; Three groups of axially support frameworks, are connected between described wheel hub and described air guide sleeve; Three groups of bending plates, are arranged with axially support frame space described in three groups, and described bending plate is formed in one structure, and the two ends of described bending plate are connected on adjacent described axially support framework, and the centre of described bending plate is connected on described wheel hub.This wind power generating set comprises above-mentioned air guide sleeve front supporting device.The wind power generating set that the utility model provides and air guide sleeve front supporting device thereof have higher rigidity and fatigue resistance.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly relates to a kind of wind power generating set and air guide sleeve front supporting device thereof.
Background technique
The projected life of wind power generating set is generally 20 years, and the number of revolution of impeller in Life cycle is greater than 10 usually
7.Air guide sleeve is arranged on wheel hub outside, rotates, bear the gravitational load of alternation with wheel hub, for guiding air to flow, reducing resistance, reducing the disadvantageous load of blower fan top of tower.And due to the randomness of wind speed and direction, the wind that air guide sleeve also will bear change carries.Because the working environment of wind power generating set is relatively more severe, the maintainability of air guide sleeve supporting structure is poor, and maintenance cost is high.Comprehensive above factor, ensures that the fatigue endurance performance of air guide sleeve supporting structure is the problem must considered in the design phase of wind power generating set.
" preparation process of air guide sleeve " literary composition describes the high technology content of function, the boats and ships of high added value such as integrating fire-fighting, dynamic positioning, traction, transport, ship AHTS 80t.In order to improve powerpropelled efficiency, the propeller cavitation of AHTS 80t is all with air guide sleeve, and this article for object, describes its preparation process with the air guide sleeve be equipped with.
Notification number is the rotor assembly that patent discloses a kind of wind-driven generator of CN201416509Y, mainly solves the force-bearing situation problem of heat radiation, blades installation wing root portion's intensity and axle suspension arm.Dislocation after the blades installation wing in the axial dimension at adhesive magnetic steel position, and is improved its root intensity with avris flanging and feature board by this patent; On at the bottom of the cup of rotor front end, uniform balance goes to expect hole, and making in the thorax of rotor is open architecture; The outer rim at the cup end has tangent plane, forms circulation passageway between itself and the port inner wall of former dome, make between air and the external world, to there is flow channel in thorax; Rear defence guard shield has the louvered window that can be pressed into air in thorax, the outer wall of rotor cup cylinder has axial raised line.
State in the design process of air guide sleeve supporting structure in realization, model utility people finds that in prior art, at least there are the following problems: in said structure and air guide sleeve structure of the prior art, all do not take into full account the fatigue strength of air guide sleeve supporting structure, and there is the problem of fatigue endurance performance deficiency, increase the possibility of whole air guide sleeve supporting structure generation fatigue ruption.
Model utility content
Embodiment of the present utility model provides a kind of wind power generating set and air guide sleeve front supporting device thereof, by arranging integrated bending plate, can improve fatigue resistance and the rigidity of air guide sleeve front support structural entity.
For achieving the above object, embodiment of the present utility model adopts following technological scheme:
An air guide sleeve front supporting device for wind power generating set, comprising:
Air guide sleeve;
Wheel hub, is arranged on described air guide sleeve inner;
Three groups of axially support frameworks, are connected between described wheel hub and described air guide sleeve;
Three groups of bending plates, are arranged with axially support frame space described in three groups, and described bending plate is formed in one structure, and the two ends of described bending plate are connected on adjacent described axially support framework, and the centre of described bending plate is connected on described wheel hub.
Further, described axially support framework comprises:
Support beam, its two ends are connected on described air guide sleeve;
Two struts be arranged in parallel, one end of described strut is vertically set on described support beam, and the other end of described strut is connected with described wheel hub.
Further, described bending plate comprises: the first joint connected successively, the first supporting portion, the second joint, the second supporting portion and the 3rd joint;
Wherein, described first joint is connected with one end of the support beam in axially support framework described in adjacent two groups respectively with described 3rd joint; Described second joint is connected with described wheel hub.
Further, described first joint and described 3rd joint offer bolt hole, and described first joint, described 3rd joint and described support beam are bolted; Described second joint offers bolt hole, and described second joint and described wheel hub are bolted.
Further, the bolt hole on described first joint and described 3rd joint is elongated hole.
Further, described first joint and described 3rd joint and described support beam clamping, described second joint and described wheel hub clamping.
Further, described first joint, described 3rd joint and described support beam, described second joint is connected with clamping and the mode combined that is spirally connected with described wheel hub.
Further, described first joint and described 3rd joint are also connected with described air guide sleeve.
Further, in described bending plate structure, adjacent joint and supporting portion coplanar are arranged or antarafacial is arranged.
Further, in described bending plate structure, the angle between adjacent joint and supporting portion is not less than 90 °.
Further, the shape of described first supporting portion and described second supporting portion is plane, cambered surface or shaped face.
A kind of wind power generating set, comprises the air guide sleeve front supporting device of the wind power generating set described in above-mentioned any one.
The wind power generating set that the utility model embodiment provides and air guide sleeve front supporting device thereof, add integrated bending plate between wheel hub and air guide sleeve.Because this bending plate does not have weld seam, also be not connected to form by other means, thus, when air guide sleeve rotates with wheel hub and bears alternate load, the fatigue resistance of air guide sleeve supporting structure can be improved, solve the defect of traditional welded structure fatigue endurance performance deficiency.Secondly because air guide sleeve is by bending plate and wheel hub Mulit-point Connection, improve integral rigidity and the intensity of air guide sleeve front supporting device.Moreover the angle between each plate face of bending plate is all not less than 90 °, thus also ensure that the overall fatigue resistance of air guide sleeve front supporting device and wind power generating set.
Accompanying drawing explanation
The structural representation of the air guide sleeve front supporting device of the wind power generating set that Fig. 1 provides for the utility model embodiment;
Another structural representation of the air guide sleeve front supporting device of the wind power generating set that Fig. 2 provides for the utility model embodiment;
The plan view of the bending plate that Fig. 3 provides for the utility model embodiment;
The side view of the bending plate that Fig. 4 provides for the utility model embodiment;
The structural representation of the air guide sleeve front supporting device that Fig. 5 provides for contrast scheme;
The stressed schematic diagram of the air guide sleeve front supporting device that Fig. 6 provides for contrast scheme;
The stressed schematic diagram of the air guide sleeve front supporting device of the wind power generating set that Fig. 7 provides for the utility model.
Drawing reference numeral illustrates:
100-air guide sleeve front supporting device; 10-bending plate; 101-first joint; 102-second joint; 103-the 3rd joint; 104-first supporting portion; 105-second supporting portion; 20-axially support framework; 201-support beam; 202,203-strut; 204-intermediate plate; 30-wheel hub; 40-air guide sleeve; 50-dunnage.
Embodiment
Be described in detail below in conjunction with the air guide sleeve front supporting device of accompanying drawing to the wind power generating set that the utility model embodiment provides.
As shown in Figure 1, the structural representation of the air guide sleeve front supporting device of the wind power generating set provided for the utility model embodiment, this air guide sleeve front supporting device 100 comprises: bending plate 10, axially support framework 20, wheel hub 30 and air guide sleeve 40.
Wherein, wheel hub 30 is arranged on air guide sleeve 40 inside; Axially support framework 20 is connected between wheel hub 30 and air guide sleeve 40, and for supporting air guide sleeve 40 in the axial direction; Bending plate 10 is connected with wheel hub 30, air guide sleeve 40 and axially support framework 20.Wherein axially support framework 20 has three groups, and be disposed on air guide sleeve 40 inside with identical, bending plate 10 and axially support framework 20 interval are arranged, and also have three groups.
As shown in Figure 2, axially support framework 20 is made up of support beam 201 and two struts 202,203.The two ends of support beam 201 are connected to (not shown) on air guide sleeve 40, two struts 202 and 203 be arranged in parallel, its one end is vertically set on support beam 201, specifically can be welded on an intermediate plate 204 (can be square), again intermediate plate 204 is bolted on support beam 201, the other end is connected with wheel hub 30, specifically connects by bolt.
As shown in Figure 3 and Figure 4, bending plate 10 is formed in one structure, comprises successively: the first joint 102, second supporting portion 105, joint 101, first supporting portion 104, second and the 3rd joint 103.Wherein, first joint 101 and the 3rd joint 103 are connected on two adjacent axially support framves 20, specifically be connected to one end of support beam 201, and in this joint, the first joint 101 is also connected (not shown) with air guide sleeve 40 respectively with the 3rd joint 103; Second joint 102 is connected on wheel hub 30, is specifically connected on the change oar driving arm of wheel hub 30.
In a kind of possible implementation, first joint 101, second joint 102 and the 3rd joint 103 all offer bolt hole, first joint 101, the 3rd joint 103 are connected with support beam 201 and air guide sleeve 40 by bolt, and the second joint 102 is connected with wheel hub 30 by bolt.And the bolt hole preferably, on the first joint 101 and the 3rd joint 103 is designed to elongated hole, to allow certain form and position tolerance.Wherein the number of bolt hole is preferably 4, to ensure the fastening effect between bending plate 10 and miscellaneous part.
In the implementation that another kind is possible, bending plate 10 is connected by snap fit with between axially support framework 20, wheel hub 30 and air guide sleeve 40.Such as, by arranging fastener on the first joint 101, second joint 102 and the 3rd joint 103, support beam 201 and wheel hub 30 arrange draw-in groove, the first joint 101 and the 3rd joint 103 can be made to be connected on axially support framework 20 and air guide sleeve 40, and the second joint 102 is connected on wheel hub 30.
In the implementation that another kind is possible, also bending plate 10 can be connected on axially support framework 20, wheel hub 30 and air guide sleeve 40 with the combined mode that is spirally connected by adopting above-mentioned clamping.Such as, the first joint 101 and support beam 201 clamping, the 3rd joint 103 is spirally connected with support beam 201, the second joint 102 and wheel hub 30 clamping.
In addition, in order to adapt to the change of the link position of wheel hub 30 and axially support framework 20, bending plate 10 can be designed to different shapes as required.Such as, in technique scheme, adjacent joint and supporting portion can be arranged by coplanar, also can arrange by antarafacial; The shape of the first supporting portion 104 and the second supporting portion 105 is not limited to plane, also can be cambered surface, even waveform face, shaped face.
Because the bending angle of bending plate is less, in course of working, plastic strain and the residual stress of bending part are larger, and when being subject to external load, the stress of bending part is concentrated larger, and these all can weaken the intensity of structure, especially fatigue strength simultaneously.And, angle between bending plate adjacent component is less, when being subject to external load, the stress produced is concentrated more serious, also the intensity of structure can be weakened, thus in the embodiment shown in Fig. 3 and Fig. 4, the plate face of adjacent supporting portion and the plate face angulation of joint are not less than 90 degree, thus ensure the overall fatigue resistance of air guide sleeve front supporting device 100.
In addition, in the present embodiment, the thickness of bending plate 10 can adjust according to the structural strength performance requirement of air guide sleeve front supporting device 100, and the making material of bending plate 10 is preferably Q345 steel.In course of working, need to polish the edges of boards of bending plate 10, to guarantee without sharp edge, breach, crackle and other defect.
The air guide sleeve front supporting device of the wind power generating set that the present embodiment provides, adds integrated bending plate between wheel hub and air guide sleeve.Because this bending plate connects without weld seam or other modes, thus when air guide sleeve rotates with wheel hub and bears alternate load, the fatigue resistance of air guide sleeve supporting structure can be improved, solve the defect of traditional welded structure fatigue endurance performance deficiency.Secondly because air guide sleeve is by bending plate and wheel hub Mulit-point Connection, improve integral rigidity and the intensity of air guide sleeve front supporting device.Moreover the angle between each plate face of bending plate is all not less than 90 °, thus also ensure that the overall fatigue resistance of air guide sleeve front supporting device.
The effect of air guide sleeve front supporting device is fixed on wheel hub by air guide sleeve, and bear the various load acted on air guide sleeve.The lightweight then hundreds of kilogram of air guide sleeve itself, heavy then several tons, its gravity is one of principal element causing air guide sleeve front supporting device stand under load.Rely on finite element technique, can analyze under the Action of Gravity Field of air guide sleeve, the stress level of air guide sleeve supporting structure and wave range, and then fatigue strength and the expected life of air guide sleeve supporting structure can be assessed.
Based on this, the utility model people is by the air guide sleeve front supporting device scheme as a comparison of certain type in prior art, and the air guide sleeve front supporting device provided with the utility model has carried out finite element analysis.As shown in Figure 5, in the air guide sleeve front supporting device of contrast scheme, its dunnage 50 (being equivalent to bending plate 10 of the present utility model) adopts welding manner to be connected on the strut of axial support structure more.Based on this structure, under the gravitational load effect of alternation, the amplitude of maximum equivalent is 30.4MPa, and occur F point in figure 6, this point is position while welding.
And based on the air guide sleeve front supporting device that the utility model provides, for the 6MW unit of the applicant, under the gravitational load effect of alternation, the amplitude of maximum equivalent is 23.0MPa, there is H point in the figure 7, near this point, there is no weld seam; And the amplitude of maximum equivalent in weld joint (i.e. the joint of support beam 201 and intermediate plate 204), be then reduced to 1.2MPa, occur G point in the figure 7.
Through comparing calculation, result shows: the air guide sleeve front supporting device that the utility model provides is under gravitational load effect, and the integrated stress level of structure declines to some extent, and the larger position of stress is not position while welding, and tired grade significantly improves; The stress level of weld joint reduces greatly simultaneously, can significantly improve fatigue endurance performance and the reliability of whole air guide sleeve front supporting device like this, reduces the rate of fault of unit, improves gene-ration revenue.
Of the present utility modelly embodiment still provides a kind of wind power generating set, comprise the air guide sleeve front supporting device of the wind power generating set in above-described embodiment.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (12)
1. an air guide sleeve front supporting device for wind power generating set, is characterized in that, comprising:
Air guide sleeve;
Wheel hub, is arranged on described air guide sleeve inner;
Three groups of axially support frameworks, are connected between described wheel hub and described air guide sleeve;
Three groups of bending plates, are arranged with axially support frame space described in three groups, and described bending plate is formed in one structure, and the two ends of described bending plate are connected on adjacent described axially support framework, and the centre of described bending plate is connected on described wheel hub.
2. the air guide sleeve front supporting device of wind power generating set according to claim 1, is characterized in that, described axially support framework comprises:
Support beam, its two ends are connected on described air guide sleeve;
Two struts be arranged in parallel, one end of described strut is vertically set on described support beam, and the other end of described strut is connected with described wheel hub.
3. the air guide sleeve front supporting device of wind power generating set according to claim 2, is characterized in that, described bending plate comprises: the first joint connected successively, the first supporting portion, the second joint, the second supporting portion and the 3rd joint;
Wherein, described first joint is connected with one end of the support beam in axially support framework described in adjacent two groups respectively with described 3rd joint; Described second joint is connected with described wheel hub.
4. the air guide sleeve front supporting device of wind power generating set according to claim 3, it is characterized in that, described first joint and described 3rd joint offer bolt hole, and described first joint, described 3rd joint and described support beam are bolted; Described second joint offers bolt hole, and described second joint and described wheel hub are bolted.
5. the air guide sleeve front supporting device of wind power generating set according to claim 4, is characterized in that, the bolt hole on described first joint and described 3rd joint is elongated hole.
6. the air guide sleeve front supporting device of wind power generating set according to claim 3, is characterized in that, described first joint and described 3rd joint and described support beam clamping, described second joint and described wheel hub clamping.
7. the air guide sleeve front supporting device of wind power generating set according to claim 3, is characterized in that, described first joint, described 3rd joint and described support beam, and described second joint is connected with clamping and the mode combined that is spirally connected with described wheel hub.
8. the air guide sleeve front supporting device of the wind power generating set according to any one of claim 3-7, is characterized in that, described first joint and described 3rd joint are also connected with described air guide sleeve.
9. the air guide sleeve front supporting device of the wind power generating set according to any one of claim 1-7, is characterized in that, in described bending plate structure, adjacent joint and supporting portion coplanar are arranged or antarafacial is arranged.
10. the air guide sleeve front supporting device of the wind power generating set according to any one of claim 1-7, is characterized in that, in described bending plate structure, the angle between adjacent joint and supporting portion is not less than 90 °.
The air guide sleeve front supporting device of 11. wind power generating set according to any one of claim 3-7, it is characterized in that, the shape of described first supporting portion and described second supporting portion is plane, cambered surface or shaped face.
12. 1 kinds of wind power generating set, is characterized in that, comprise the air guide sleeve front supporting device of the wind power generating set described in any one of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860295.5U CN204402768U (en) | 2014-12-30 | 2014-12-30 | Wind power generating set and air guide sleeve front supporting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860295.5U CN204402768U (en) | 2014-12-30 | 2014-12-30 | Wind power generating set and air guide sleeve front supporting device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402768U true CN204402768U (en) | 2015-06-17 |
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ID=53426634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860295.5U Withdrawn - After Issue CN204402768U (en) | 2014-12-30 | 2014-12-30 | Wind power generating set and air guide sleeve front supporting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564539A (en) * | 2014-12-30 | 2015-04-29 | 江苏金风科技有限公司 | Wind turbine generator system and flow guide cover front support device thereof |
| CN111483005A (en) * | 2020-05-26 | 2020-08-04 | 安徽泰乐玛科技有限公司 | Positioning and punching tool for air guide sleeve of large glass fiber reinforced plastic wind driven generator |
-
2014
- 2014-12-30 CN CN201420860295.5U patent/CN204402768U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564539A (en) * | 2014-12-30 | 2015-04-29 | 江苏金风科技有限公司 | Wind turbine generator system and flow guide cover front support device thereof |
| CN104564539B (en) * | 2014-12-30 | 2017-10-17 | 江苏金风科技有限公司 | Wind power generating set and its kuppe front supporting device |
| CN111483005A (en) * | 2020-05-26 | 2020-08-04 | 安徽泰乐玛科技有限公司 | Positioning and punching tool for air guide sleeve of large glass fiber reinforced plastic wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150617 Effective date of abandoning: 20171017 |
|
| AV01 | Patent right actively abandoned |