CN201885870U - Interval change type pitch test device - Google Patents
Interval change type pitch test device Download PDFInfo
- Publication number
- CN201885870U CN201885870U CN201020659787XU CN201020659787U CN201885870U CN 201885870 U CN201885870 U CN 201885870U CN 201020659787X U CN201020659787X U CN 201020659787XU CN 201020659787 U CN201020659787 U CN 201020659787U CN 201885870 U CN201885870 U CN 201885870U
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- China
- Prior art keywords
- oar
- process blade
- blade
- revolution
- wheel hub
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- Expired - Fee Related
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Abstract
The utility model discloses an interval change type pitch test device which comprises a process blade, a hub and a pitch rotary support mounted on the hub; and the pitch rotary support is connected with the process blade through an interval ring. The interval change type pitch test device effectively saves a large number of consumed times when the process blade and the pitch rotary support are mounted and dismounted and simultaneously reduces the labor intensity.
Description
Technical field
The utility model relates to a kind of change oar test unit, and particularly, the wind-driven generator pitching assembly was done the device that becomes the oar test before dispatching from the factory.
Background technology
According to the requirement of GBT21407-2008 double-feedback speed-variable frequency-constant wind-driven generator group, the wind-driven generator pitching assembly should be done before dispatching from the factory and become the oar test, with the job stability of system under the action sensitivity of checking pitch-controlled system and the different loads.What this invention related to is a kind of novel change oar test loading process blade.Along with the development of wind generating technology, and become the necessity of oar test and the aggravation of complicacy, this kind process blade has broad application prospect in the wind-powered electricity generation industry.
Become the oar assembly after assembling is finished, utilizing process blade that gravitational torque is added to becomes in the oar revolution support, make the pitch-changing mechanism simulation add displacement push-and-pull load, utilize drive unit to drive and become oar revolution supporting movement, load 40%, 80%, 120%, 160% and 200% of leaf weight respectively.Becoming the oar test is after the wheel hub assembling is finished, the installed surface of wheel hub and main shaft is installed on the wheel hub stationary installation down, by simulation adds that becoming oar rotates load to blade pitch device on pitch variable bearings, the action sensitivity of test blade pitch device reaches the rotatory power to load, satisfies the designing requirement of blower fan.This will make a kind of process blade, process blade is assembled to become in the oar revolution support simulate real blade.The centre of gravity place of blade coincide in the centre of gravity place of requirement process blade and the reality; Simulate the inertia attribute of blade, the inertia of apparent wind wheel shaft; And the weight of blade is adjustable when the test different loads.Because the restriction of factory building width, the length of process blade can not be oversize, reach minimum so when design, guarantee the mass distribution between process blade design gravity and the wheel hub as much as possible, this just requires the process blade device that certain intensity will be arranged, and guarantees in lifting and change in balancing weight and the process of the test to produce plastic yield.
Domestic existing technology is that process blade is as a whole.Because when process blade and change oar revolution support and connection, have only by the fabrication hole on the wheel hub and just can tight a bolt, but fabrication hole is limited, when the mounting process blade, need jiggering, jiggering is that process blade must be followed rotation together, this has brought very big inconvenience to installation, has reduced work efficiency, and has increased certain danger.
Summary of the invention
The purpose of this utility model is to change existing this situation, alleviates working strength of workers, increases work efficiency, and provides a kind of interval formula of changing to become the oar test unit.
A kind of interval is changed formula and is become the oar test unit, and the change oar revolution that comprise process blade, wheel hub, is contained on the wheel hub is supported, and the revolution of change oar is supported and linked to each other with process blade by spaced ring.
Described spaced ring has two flange faces, and is welded together by gusset in the middle of two flange faces, and a flange face supports with the revolution of change oar and is connected by bolt, and another flange face is connected by bolt with process blade.
Described wheel hub is provided with fabrication hole.
So only needing that spaced ring is installed to the revolution of change oar supports, the light less relatively spaced ring of volume of weight can manually be assisted when carrying out jiggering, only depend on 1/6 bolt connect just can with become the oar revolution and support jiggering together, become the oar revolution and support more convenient fast with being connected of spaced ring.Bolt can connect fast outside realization of wheel hub when process blade was connected with spaced ring, do not need to carry out jiggering, so when carrying out different load tests, only needing to change different loading process blades gets final product, do not need to carry out process blade and become the repeatedly dismounting that the oar revolution is supported, save the time, reduced labour intensity.
Description of drawings
Fig. 1 the present invention (three blades) becomes oar test unit structural drawing;
Fig. 2 spaced ring structural drawing of the present invention;
Fig. 3 spaced ring of the present invention and process blade connecting portion outside drawing;
Wherein: 1 process blade, 2 wheel hubs, 3 process blades load counterweight, and 4 become the oar revolution supports 5 spaced rings.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, this novel change oar testing table mainly loads counterweight 3, the revolution support 4 of change oar and spaced ring 5 by process blade 1, wheel hub 2, process blade to be formed, and becomes oar revolution support 4 and links to each other with process blade 1 by spaced ring 5.Described spaced ring 5 has two flange faces, and is welded together by gusset in the middle of two flange faces, flange face with become oar revolution support 4 and be connected by bolt, another flange face and process blade 1 are connected by bolt.
To become oar revolution and support 4 and be installed on the wheel hub 2, and again spaced ring 5 will be assembled to and become the oar revolution and support on 4 by bolt.When the clipping room spacer ring, need by the fabrication hole on the wheel hub bolt be passed from wheel hub inside, because the limited amount of fabrication hole only has 1/6 of total bolt number, so when the clipping room spacer ring, will cooperate change oar motor to carry out jiggering.No. 6 times jiggering could be in place a spaced ring.But the time consumption here all will carry out jiggering 6 times with respect to the process blade of each specification, and it is for 6 times quite quick with easily also wanting jiggering during dismounting.After spaced ring 5 installations, process blade 1 and the assembly that loads counterweight 3 are sling and made ring flange on the process blade and the ring flange centering on the spaced ring, put on bolt and tighten with overhead traveling crane.Repeat just can become the oar test after said process is finished 3 process blade aggregate erections.When utilizing next rank load-carrying to test again, do not need spaced ring 5 is pulled down, only process blade 1 and process blade need be loaded counterweight 3 and pull down and get final product.So just saved effectively at installation and removal process blade 1 and supported 4 o'clock spent plenty of time, reduced labour intensity simultaneously with becoming the oar revolution.
Claims (3)
1. the interval formula of changing becomes the oar test unit, and the change oar revolution that comprise process blade, wheel hub, is contained on the wheel hub is supported, and it is characterized in that, the revolution of change oar is supported and linked to each other with process blade by spaced ring.
2. become the oar test unit according to the described interval of claim 1 formula of changing, it is characterized in that, described spaced ring has two flange faces, welded together in the middle of two flange faces by gusset, a flange face supports with the revolution of change oar and is connected by bolt, and another flange face is connected by bolt with process blade.
3. become the oar test unit according to the described interval of claim 1 formula of changing, it is characterized in that described wheel hub is provided with fabrication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659787XU CN201885870U (en) | 2010-12-15 | 2010-12-15 | Interval change type pitch test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659787XU CN201885870U (en) | 2010-12-15 | 2010-12-15 | Interval change type pitch test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201885870U true CN201885870U (en) | 2011-06-29 |
Family
ID=44183415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020659787XU Expired - Fee Related CN201885870U (en) | 2010-12-15 | 2010-12-15 | Interval change type pitch test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201885870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813548A (en) * | 2019-03-26 | 2019-05-28 | 成都天马精密机械有限公司 | A kind of pitch variable bearings test machine |
| CN114393535A (en) * | 2022-03-14 | 2022-04-26 | 厦门双瑞风电科技有限公司 | Wind power blade deformation prevention and trial assembly tool and hub trial assembly method thereof |
-
2010
- 2010-12-15 CN CN201020659787XU patent/CN201885870U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813548A (en) * | 2019-03-26 | 2019-05-28 | 成都天马精密机械有限公司 | A kind of pitch variable bearings test machine |
| CN114393535A (en) * | 2022-03-14 | 2022-04-26 | 厦门双瑞风电科技有限公司 | Wind power blade deformation prevention and trial assembly tool and hub trial assembly method thereof |
| CN114393535B (en) * | 2022-03-14 | 2023-11-21 | 厦门双瑞风电科技有限公司 | Wind power blade deformation prevention and trial assembly tool and hub trial assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20161215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |