CN202770391U - Detection apparatus for variable pitch direction and angle of wind generating set - Google Patents
Detection apparatus for variable pitch direction and angle of wind generating set Download PDFInfo
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- CN202770391U CN202770391U CN201220417606.1U CN201220417606U CN202770391U CN 202770391 U CN202770391 U CN 202770391U CN 201220417606 U CN201220417606 U CN 201220417606U CN 202770391 U CN202770391 U CN 202770391U
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- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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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
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Abstract
本实用新型提供了一种风力发电机组变桨方向和角度的检测装置，检测装置包括：变桨轴承、接近开关安装支架和霍尔接近开关，将所述接近开关安装支架固定在轮毂上靠近所述变桨轴承内齿圈的位置，两个所述霍尔接近开关固定在所述接近开关安装支架上。本实用新型的风力发电机组变桨方向和角度的检测装置结构简单，成本较低。
The utility model provides a detection device for the pitch direction and angle of a wind power generating set. The detection device includes: a pitch bearing, a proximity switch mounting bracket and a Hall proximity switch. The proximity switch mounting bracket is fixed on the wheel hub close to the The position of the inner ring gear of the pitch bearing, and the two Hall proximity switches are fixed on the proximity switch mounting bracket. The detection device for the pitch direction and angle of the wind power generating set of the utility model has simple structure and low cost.
Description
Technical field
The utility model relates to technical field of wind power generation, the pick-up unit of especially a kind of wind generating set pitch control direction and angle.
Background technology
At present, in the pitch-controlled system of Large-scale Wind Turbines, the general REDUNDANCY ENCODER that adopts configures, on each change oar motor shaft an absolute value encoder is housed, a redundant absolute value encoder of measuring propeller pitch angle is housed near pitch variable bearings simultaneously, this REDUNDANCY ENCODER needs pinion wheel and pitch variable bearings engagement, detects by pinion drive to become oar direction and angle.When the angular deviation of two scramblers was excessive, pitch-controlled system put away the oars to protect blower fan, prevented that pitch-controlled system continues operation behind the encoder fault.In this scheme, although the precision of redundant absolute value encoder is higher, drive mechanism is complicated, the moment of torsion that REDUNDANCY ENCODER is born is larger, if there is not special-purpose glissando easily to damage scrambler, in addition, the cost of redundant absolute value encoder and interface control module is also higher.
Hall element is a kind of magneto sensor.The switch that utilizes Hall element to make is called proximity Hall switch.When the magnetic object shifted near proximity Hall switch, the Hall element on the switch detection faces changed the switch internal circuit status because producing Hall effect, and near the object that is magnetic the identification thus exists, and then the on-off of gauge tap.
The utility model content
The utility model proposes the pick-up unit of a kind of wind generating set pitch control direction and angle, simple in structure, cost is lower.The technical scheme that the utility model adopts specifically is achieved in that
The utility model provides the pick-up unit of a kind of wind generating set pitch control direction and angle, comprise: pitch variable bearings, mounting bracket of approach switch and proximity Hall switch, described mounting bracket of approach switch is fixed on the position of close described pitch variable bearings ring gear on the wheel hub, two described proximity Hall switchs are fixed on the described mounting bracket of approach switch.
Preferably, the distance of the flank of tooth of described proximity Hall switch and described pitch variable bearings is adjustable.
Preferably, the distance of the longitudinal axis of two described proximity Hall switchs is 1.25 times of pitch variable bearings tooth pitch.
The wind generating set pitch control direction of the utility model specific embodiment and the pick-up unit of angle, simple in structure, cost is lower, and detection method is also fairly simple, and is easy to operate.
Description of drawings
Fig. 1 is the structural representation of the pick-up unit of the wind generating set pitch control direction of the utility model specific embodiment and angle;
Fig. 2 is the proximity Hall switch output signal diagram of the pick-up unit of the wind generating set pitch control direction of the utility model specific embodiment and angle;
Fig. 3 is the signal condition transition diagram of the pick-up unit of the wind generating set pitch control direction of the utility model specific embodiment and angle.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing embodiment of the present utility model is described in detail, it will be more clear making above-mentioned and other purpose of the present utility model, Characteristics and advantages.Reference numeral identical in whole accompanying drawings is indicated identical part.Deliberately do not draw in proportion accompanying drawing, focus on illustrating purport of the present utility model.
Fig. 1 is the structural representation of the pick-up unit of the wind generating set pitch control direction of the utility model specific embodiment and angle, as shown in Figure 1, the wind generating set pitch control direction of the utility model specific embodiment and the pick-up unit of angle, it comprises: pitch variable bearings 1, mounting bracket of approach switch 2 and proximity Hall switch 3, mounting bracket of approach switch 2 is fixed on the position of close pitch variable bearings 1 ring gear on the wheel hub, two proximity Hall switchs 3 are fixed on the mounting bracket of approach switch 2, proximity Hall switch 3 is adjustable with the distance of the flank of tooth of pitch variable bearings, and the distance of the longitudinal axis of two proximity Hall switchs 3 is 1.25 times of pitch variable bearings tooth pitch.
In the utility model specific embodiment, the detection method of the pick-up unit of a kind of wind generating set pitch control direction and angle also is provided, wherein, the pick-up unit of wind generating set pitch control direction and angle comprises: pitch variable bearings 1, mounting bracket of approach switch 2 and proximity Hall switch 3, mounting bracket of approach switch 2 is fixed on the position of close pitch variable bearings 1 ring gear on the wheel hub, two proximity Hall switchs 3 are fixed on the mounting bracket of approach switch 2, proximity Hall switch 3 is adjustable with the distance of the flank of tooth, and the distance of the longitudinal axis of two proximity Hall switchs 3 is 1.25 times of pitch variable bearings tooth pitch; The detection method of the pick-up unit of wind generating set pitch control direction and angle comprises step:
A. two proximity Hall switchs 3 access the high speed counting module that becomes the oar controller by shielded cable;
B. when becoming oar, two proximity Hall switchs 3 are converted into the signal that is similar to square wave with its relative motion with pitch variable bearings 1 ring gear;
C. PLC(Programmable Logic Controller) internal processes is judged the output signal of proximity Hall switch 3 and is calculated direction and the angle that becomes oar.
Fig. 2 is the proximity Hall switch output signal diagram of the pick-up unit of the wind generating set pitch control direction of the utility model specific embodiment and angle, as shown in Figure 2, when pitch variable bearings 1 gear ring rotates, the output signal of two proximity Hall switchs 3 changes, and two proximity Hall switch 3 output signals have following four kinds of status switches:
0（LL）
1（HL）
2（HH）
3（LH）
Fig. 3 is the signal condition transition diagram of the pick-up unit of the wind generating set pitch control direction of the utility model specific embodiment and angle, as shown in Figure 3, when occurring 0, the output signal of two proximity Hall switchs 3 is converted to 2,1 is converted to 3,2 are converted to 0 or 3 is converted at 1 o'clock, can judge the relative position existing problems that two proximity Hall switchs 3 are installed; When the output signal 2 of two proximity Hall switchs 3 is converted to 3, can judge that pitch-controlled system clockwise rotates; When the output signal 3 of two proximity Hall switchs 3 is converted to 2, can judge that pitch-controlled system rotates counterclockwise.
When zero in the pitch-controlled system school, becoming the oar controller is 0 degree with propeller pitch angle demarcation at that time.The number of teeth by pitch variable bearings 1 ring gear can calculate angle corresponding to each pulse signal, when pitch variable bearings 1 clockwise or the moment that rotates counterclockwise, the data that change oar controller obtains according to high-speed counter calculate the angle that pitch variable bearings 1 turns over, thereby increase or reduce corresponding angle, obtain up-to-date propeller pitch angle, and these data are deposited in become oar PLC, and this data power down is kept.
The wind generating set pitch control direction of the utility model specific embodiment and the pick-up unit of angle, simple in structure, cost is lower, and detection method is also fairly simple, and is easy to operate.
In above description, a lot of details have been set forth so that fully understand the utility model.But above description only is preferred embodiment of the present utility model, and the utility model can be implemented much to be different from alternate manner described here, so the utility model is not subjected to the restriction of top disclosed implementation.Any skilled personnel are not breaking away from the technical solutions of the utility model scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Every content that does not break away from technical solutions of the utility model according to any simple modification, equivalent variations and the modification that technical spirit of the present utility model is done above embodiment, all still belongs in the scope of technical solutions of the utility model protection.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220417606.1U CN202770391U (en) | 2012-08-22 | 2012-08-22 | Detection apparatus for variable pitch direction and angle of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220417606.1U CN202770391U (en) | 2012-08-22 | 2012-08-22 | Detection apparatus for variable pitch direction and angle of wind generating set |
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| Publication Number | Publication Date |
|---|---|
| CN202770391U true CN202770391U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220417606.1U Expired - Fee Related CN202770391U (en) | 2012-08-22 | 2012-08-22 | Detection apparatus for variable pitch direction and angle of wind generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818519A (en) * | 2012-08-22 | 2012-12-12 | 南京风电科技有限公司 | Device for detecting direction and angle of variable blade of wind generating set and detection method thereof |
-
2012
- 2012-08-22 CN CN201220417606.1U patent/CN202770391U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818519A (en) * | 2012-08-22 | 2012-12-12 | 南京风电科技有限公司 | Device for detecting direction and angle of variable blade of wind generating set and detection method thereof |
| CN102818519B (en) * | 2012-08-22 | 2015-09-30 | 南京风电科技有限公司 | The pick-up unit of wind generating set pitch control direction and angle and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent manager of Nanjing Wind Power Technology Co., Ltd. Document name: Notification that Application Deemed not to be Proposed |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Ningyuan Economic Development Zone Binjiang Road, Jiangning District of Nanjing City, Jiangsu province 211100 Patentee after: Nanjing Wind Power Technology Co., Ltd. Address before: 211100 Jiangsu city of Nanjing province Jiangning Science Park Yuehua road and Duangong Road intersection Patentee before: Nanjing Wind Power Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20170822 |