CN101907515B - Fully-digital functional experiment table of electric variable pitch system - Google Patents
Fully-digital functional experiment table of electric variable pitch system Download PDFInfo
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- CN101907515B CN101907515B CN201010212258XA CN201010212258A CN101907515B CN 101907515 B CN101907515 B CN 101907515B CN 201010212258X A CN201010212258X A CN 201010212258XA CN 201010212258 A CN201010212258 A CN 201010212258A CN 101907515 B CN101907515 B CN 101907515B
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- ring gear
- supporting body
- variable pitch
- pitch system
- electric variable
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Abstract
The invention discloses a fully-digital functional experiment table of an electric variable pitch system and relates to a fully-digital megawatt grade wind generating set. In the invention, an incremental photoelectrical encoder is fixedly arranged on an output shaft of a servo motor, the servo motor is connected with a speed reducer and then fixedly arranged on a supporting body fixedly connected to a base, and output teeth of the speed reducer are engaged with an inner gear ring; the inner gear is supported by a rotary supporting body; the rotary supporting body is arranged on a left supporting body and a right supporting body through bearings, and the left supporting body and the right supporting body are sequentially and fixedly connected to the left end of the base; the end surface at one side of the inner gear ring is fixedly connected with a absolute photoelectrical encoder; a 0 degree limit switch and a 90 degree limit switch are fixed on a limit switch bracket fixedly connected to the inner gear ring; and a first fixed slide block and a second fixed slide block are arranged on the end surface at one side of the inner gear ring. The invention can realize the ground test of the function of a single blade in the variable pitch system so as to effectively verify the stability and the safe reliability of the electric variable pitch system and reduce the maintenance cost of the system.
Description
Technical field
The present invention relates to a kind of functional experiment table of electric variable pitch system, relate in particular to a kind of totally digitilized megawatt-level wind unit functional experiment table of electric variable pitch system.
Background technology
At present; The wind power equipment of China particularly development and the exploitation aspect of electric variable propeller system has had very big development; But owing to lack necessary Ground Functional Test, the stability of electric variable propeller system and safe reliability can not effectively be verified, and the expense of working service is higher.
Summary of the invention
The object of the present invention is to provide and a kind ofly can simulate wind-powered electricity generation set pitch control function, need not the pylon test and only need the experiment table that under laboratory condition, just can carry out single paddle is become the oar functional test.
For achieving the above object; Adopt following technical scheme: a kind of functional experiment table of electric variable pitch system of total digitalization comprises incremental photo encoder, servomotor, reductor, base, swivel bearing body, left and right supporter, ring gear, absolute light photoelectric coder, 90 ° of limit switches and 0 ° of limit switch; Said incremental photo encoder is fixedly mounted on the servomotor output shaft; This servomotor links to each other with reductor; Said servomotor and reductor are fixedly mounted on the supporter that is fixed on the base, and the output gear of said reductor is meshed with the ring gear of gear mechanism; And ring gear is supported by the swivel bearing body; On left and right supporter, this left and right supporter is fixed in the left end of base to this swivel bearing body successively through Bearing Installation; The affixed absolute light photoelectric coder of end face on one side of said ring gear, said 0 ° and 90 ° of limit switches are fixed on the limit switch bracket affixed on the ring gear, on one side end face of ring gear first, second fixedly slide block are installed simultaneously.
The present invention can realize the ground test to the function of pitch-controlled system single paddle, and the stability of electric variable propeller system and safe reliability are effectively verified, and the expense of its working service is reduced.And it is more safe and reliable to adopt absolute light photoelectric coder and incremental photo encoder to carry out Redundant Control, and the high and stability of precision by force.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Specific embodiments
Below in conjunction with embodiment the present invention is further described.
Present embodiment is design under laboratory condition, and this experiment table is according to the scaled experimental provision that can accurately detect the pitch-controlled system function of the ring gear of practical application.
With reference to Fig. 1; A kind of functional experiment table of electric variable pitch system of total digitalization comprises incremental photo encoder, servomotor, reductor, base, swivel bearing body, left and right supporter, ring gear, absolute light photoelectric coder, 90 ° of limit switches and 0 ° of limit switch; Said incremental photo encoder 1 is fixedly mounted on servomotor 2 output shafts, gathers the rotating speed and the rotor-position of said servomotor 2, is used to calculate blade rotating speed and blade position; This servomotor 2 is linked to each other by bolt with the ring flange of reductor 3; Source as displacement power; Said servomotor 2 is fixedly mounted on the supporter that is fixed on the base 4 with reductor 3; The output gear of said reductor 3 is meshed with the ring gear of gear mechanism 8, can drive single paddle and rotate, and realizes the direct control to the pitch angle of single paddle; And ring gear 8 is supported by swivel bearing body 5; The installation method of this swivel bearing body 5: even installation shaft bearing of the periphery in ring gear hole and rolling bearing on the left and right supporter 6,7, swivel bearing body 5 is installed in the said rolling bearing; Be processed with on the said swivel bearing body 5 and the suitable groove of ring gear 8 outlines, make ring gear 8 can realize that circumference rolls.Said left and right supporter 6,7 is fixed in base 4 left ends successively; The affixed absolute light photoelectric coder 9 of end face on one side of said ring gear 8; This absolute light photoelectric coder 9 directly detects the angle that ring gear 8 rotates; Be that the blade pitch angle changes, when ring gear 8 turns over an angle, absolute light photoelectric coder 9 uses as the Redundant Control scrambler.Said 0 ° and 90 ° of limit switches 11,10 are fixed on the limit switch bracket affixed on the ring gear 8, on one side end face of ring gear 8 first, second fixedly slide block 12,13 are installed simultaneously.Said first, second fixedly slide block 12, the angle between 13 are 90 °～105 °; Limit switch rotates in 90 ° of scopes, and when the terminal roller of 0 ° of limit switch 11 (or 90 ° of limit switches 10) was run into fixedly slide block 13 (or 12), driver just can detect a feedback signal, thereby the position that can guarantee ring gear 8 is in safe range.When driver detected 0 ° of feedback signal of limit switch, theft-resistant link chain broke off, and promptly put away the oars and reported fault to give master control; , driver shuts down when detecting 90 ° of feedback signals of limit switch.
Claims (3)
1. the functional experiment table of electric variable pitch system of a total digitalization, it is characterized in that: it comprises incremental photo encoder, servomotor, reductor, base, swivel bearing body, left and right supporter, ring gear, absolute light photoelectric coder, 90 ° of limit switches and 0 ° of limit switch; Said incremental photo encoder (1) is fixedly mounted on servomotor (2) output shaft; This servomotor (2) links to each other with reductor (3); Said servomotor (2) is fixedly mounted on the supporter that is fixed on the base (4) with reductor (3), and the output gear of said reductor (3) is meshed with the ring gear (8) of gear mechanism; And ring gear (8) is supported by swivel bearing body (5); On left and right supporter (6,7), this left and right supporter (6,7) is fixed in the left end of base (4) to this swivel bearing body (5) successively through Bearing Installation; At the affixed absolute light photoelectric coder of one side end face of said ring gear (8) (9); Said 0 ° and 90 ° of limit switches (11,10) are fixed on ring gear (8) and go up on the affixed limit switch bracket, on one side end face of ring gear (8) first, second fixedly slide block (12,13) are installed simultaneously.
2. the functional experiment table of electric variable pitch system of total digitalization according to claim 1 is characterized in that: be processed with on the said swivel bearing body (5) and the suitable groove of ring gear (8) outline, make ring gear (8) can realize that circumference rolls.
3. the functional experiment table of electric variable pitch system of total digitalization according to claim 1 is characterized in that: said first, second fixedly the angle between the slide block (12,13) be 90 °～105 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212258XA CN101907515B (en) | 2010-06-26 | 2010-06-26 | Fully-digital functional experiment table of electric variable pitch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212258XA CN101907515B (en) | 2010-06-26 | 2010-06-26 | Fully-digital functional experiment table of electric variable pitch system |
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| Publication Number | Publication Date |
|---|---|
| CN101907515A CN101907515A (en) | 2010-12-08 |
| CN101907515B true CN101907515B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010212258XA Expired - Fee Related CN101907515B (en) | 2010-06-26 | 2010-06-26 | Fully-digital functional experiment table of electric variable pitch system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759452A (en) * | 2012-07-11 | 2012-10-31 | 北京交通大学 | Experimental testing platform for variable pitch system of wind turbine generator |
| CN103575537A (en) * | 2012-08-06 | 2014-02-12 | 西门子风力发电设备(上海)有限公司 | Blade position simulating device of variable-pitch loading test platform |
| CN110762035A (en) * | 2019-10-12 | 2020-02-07 | 珠海格力电器股份有限公司 | Centrifugal fan with adjustable air-out direction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419124A (en) * | 2008-11-26 | 2009-04-29 | 瓦房店轴承集团有限责任公司 | Oar-changing bearing test methods for wind power generator |
| JP2009150241A (en) * | 2007-12-19 | 2009-07-09 | Masahiro Kuroda | Wind turbine and wind power generator |
| WO2009097055A2 (en) * | 2007-12-13 | 2009-08-06 | Alliance For Sustainable Energy, Llc | Wind turbine blade testing system using base excitation |
| CN201731996U (en) * | 2010-06-26 | 2011-02-02 | 董海鹰 | Full digital electric blade-pitch control system function test stand |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8274169B2 (en) * | 2008-11-25 | 2012-09-25 | Schopf William K | Wind powered generator for a vehicle |
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2010
- 2010-06-26 CN CN201010212258XA patent/CN101907515B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009097055A2 (en) * | 2007-12-13 | 2009-08-06 | Alliance For Sustainable Energy, Llc | Wind turbine blade testing system using base excitation |
| JP2009150241A (en) * | 2007-12-19 | 2009-07-09 | Masahiro Kuroda | Wind turbine and wind power generator |
| CN101419124A (en) * | 2008-11-26 | 2009-04-29 | 瓦房店轴承集团有限责任公司 | Oar-changing bearing test methods for wind power generator |
| CN201731996U (en) * | 2010-06-26 | 2011-02-02 | 董海鹰 | Full digital electric blade-pitch control system function test stand |
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| CN101907515A (en) | 2010-12-08 |
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Owner name: LANZHOU JIAOTONG UNIV. Free format text: FORMER OWNER: DONG HAIYING Effective date: 20110822 |
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Effective date of registration: 20110822 Address after: 730070 Anning Road, Anning, 88, LanZhou JiaoTong University, Lanzhou Applicant after: Lanzhou Jiaotong Univ. Address before: 730070 School of automation and electrical engineering, LanZhou JiaoTong University, Anning 88, Anning West Road, Lanzhou, Gansu Applicant before: Dong Haiying |
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