CN201373783Y - Testing device of variable paddle bearing friction torque of wind driven generator - Google Patents
Testing device of variable paddle bearing friction torque of wind driven generator Download PDFInfo
- Publication number
- CN201373783Y CN201373783Y CN200920063909U CN200920063909U CN201373783Y CN 201373783 Y CN201373783 Y CN 201373783Y CN 200920063909 U CN200920063909 U CN 200920063909U CN 200920063909 U CN200920063909 U CN 200920063909U CN 201373783 Y CN201373783 Y CN 201373783Y
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- charger
- variable
- girder
- semi
- driven generator
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Abstract
The utility model discloses a testing device of the variable paddle bearing friction torque of a wind driven generator, comprising a fixed tooling, wherein the fixed tooling is arranged on a test bed and is provided with a hub assembling system provided with a variable paddle bearing to be tested, and the variable paddle bearing to be tested is connected with a cantilever beam for test by a bolt. The final end of the cantilever beam is hung with a loading device, and a balancing weight for adjusting loaded weight is hung under the loading device. The test of the testing device is that a cantilever beam device is installed on the paddle bearing, and the final end of the cantilever beam carries out loading to simulate the load in the real fan running; under the load conditions, the measuring for the variable paddle bearing friction torque with load can be realized by starting a variable paddle system and utilizing a variable paddle-driven test device.
Description
Technical field
The utility model is a kind of proving installation of fan part, refers in particular to a kind of proving installation of MW class pitch-controlled wind-driven generator group variable-paddle bearing friction moment.Be mainly used under the various load that pitch variable bearings bore in ground experiment chamber simulation wind power generating set actual motion, detect the moment of friction of wind generating set pitch control bearing, can also be used to carrying out the ultimate strength and the torture test of the ultimate strength of wheel hub and torture test, pitch variable bearings.
Technical background
For the wind-driven generator pitching system, measure the moment of friction of pitch variable bearings accurately, for the type approval test of pitch-controlled system, the check etc. that becomes the determining of oar driving moment, pitch-controlled system extremely important meaning is arranged.The moment of friction of pitch variable bearings is different under the situation of unloaded lotus and bearing load, present domestic pitch variable bearings major vendor is not accurately considered the influence of load to variable-paddle bearing friction moment, and just the coefficient form of the moment of friction that simply will be caused by load about with 5%-10% considered.For large-scale pitch-controlled wind-driven generator group, because the load relatively large (10 that pitch variable bearings bore in its actual moving process
6Therefore the Nm order of magnitude), the load that pitch variable bearings bore is relatively large to the influence of its moment of friction, simulates the load in the pitch variable bearings actual motion, and the measurement Research of carrying out the moment of friction of pitch variable bearings and load relation is very necessary.
The moment of friction of pitch variable bearings normally increases with the increase of load, for good wind power generation pitch-controlling bearing, not only need be less in the moment of friction of pitch variable bearings under the no-load condition, the more important thing is that hope is under the band load condition, moment of friction is subjected to the influence of load less, changes more steady.Influence variable-paddle bearing friction moment comprises bearing with the principal element of load change relation pattern, material, processing technology and machining precision etc.Blower fan is in actual moving process, the load that pitch variable bearings mainly bears comprises: axial force, radial force and upsetting moment, wherein in most cases, the upsetting moment maximum, what variable-paddle bearing friction moment was had the greatest impact also is upsetting moment, almost accounts for more than 80% of whole moment of friction.
The utility model content
The utility model is intended to detect existing deficiency at the moment of friction of existing pitch variable bearings, and a kind of simulation test device of moment of friction of accurate measurement pitch variable bearings is provided.
The purpose of this utility model is achieved by following technical proposals: a kind of simulation test device of moment of friction of accurate measurement pitch variable bearings, comprise a fixing tool, fixing tool is installed on the testing table, be equipped with on the fixing tool wheel hub package system of waiting to test pitch variable bearings is housed, waiting to test pitch variable bearings is connected by the semi-girder that bolt and is used to test, end at semi-girder is hung with charger, hangs with the counterweight that is used to adjust loaded weight under the charger.The test of this test unit is on the blade bearing cantilever beam device to be installed, and loads at the semi-girder end, simulates load in the actual fan operation with this; And under loading condition, become the testing apparatus that oar drives by starting pitch-controlled system and utilizing, realize measurement to the variable-paddle bearing friction moment of band load.
The utility model is mainly used to measure accurately the moment of friction of pitch variable bearings, but also can be used for carrying out the ultimate strength and the torture test of the ultimate strength of wheel hub and torture test, pitch variable bearings.
Advantage of the present utility model is: the load that pitch variable bearings is born in the time of 1) can simulating the wind power generating set actual motion in the ground experiment chamber, state in the time of can guaranteeing the more approaching actual fan operation of the state of pitch variable bearings like this, thereby the variable-paddle bearing friction moment data that warranty test obtains are more accurate, and the result is more reasonable; 2) because the load of being born big (several thousand thousand Ns of rice) in the actual wind-powered electricity generation unit operation, be difficult in and add so big load in the ground experiment, utilize the method for the utility model introduction then can simulate this load.3) test figure sends computer to by data line, and output is accurate, and reading is near actual.
Utilize this method and apparatus to simulate the various load that pitch variable bearings bore in the wind power generating set actual motion in the ground experiment chamber, measure the moment of friction of pitch variable bearings in the actual wind-powered electricity generation unit operation more accurately, thus for the checking of the pattern of wind generating set pitch control bearing, become that oar drives determine and the fail-safe analysis of pitch-controlled system etc. provides better technical support.
Description of drawings
Fig. 1 is a physical construction schematic overview of the present utility model;
Fig. 2 is a cantilever beam structure schematic overview of the present utility model;
Fig. 3 is a charger structural representation of the present utility model;
Fig. 4 is a counter weight construction synoptic diagram of the present utility model.
Among the figure: 1, wheel hub package system; 2, fixing tool; 3, semi-girder; 4, charger; 5, counterweight; 6, pitch variable bearings; 7, forward flange; 8, cylinder; 9, hanger; 10, rear flange; 11, axle; 12, play boatswain chair; 13, deep groove ball bearing; 14, outer ring snap ring; 15, hexagon socket cap head screw; 16, plain washer; 17, straight pin; 18, taper bolt; 19, base.
Embodiment
Accompanying drawing has provided a kind of synoptic diagram of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
By accompanying drawing 1 as can be seen the utility model be a kind of proving installation, mainly comprise wheel hub package system 1, fixing tool 2, semi-girder 3, charger 4, counterweight 5 and pitch variable bearings 6 etc.This proving installation is for measuring the simulation test device of the moment of friction of pitch variable bearings 6 accurately on ground, it by ground experiment measure pitch variable bearings 6 moment of frictions; The process that this proving installation is measured the moment of friction of pitch variable bearings is: the wheel hub package system 1 that pitch variable bearings 6 will be installed is fixed on the fixing tool 2, simulation semi-girder 3 is installed at pitch variable bearings 6 places again, and at the semi-girder 3 terminal chargers 4 that connect an application of force, charger is connected with counterweight 54 times; Load by 4 pairs of semi-girders 3 of charger, and change the weight of loading, simulate load in the actual fan operation with this by counterweight 5; And under loading condition, become the testing apparatus that oar drives by starting pitch-controlled system and utilizing, realize measurement to the variable-paddle bearing friction moment of band load; The actual tests process can divide for three steps carried out.
The first step is under the no-load condition, promptly pitch variable bearings 6 not (not being with semi-girder 3) under the situation with any load, measures blade bearing starting friction moment, and this can verify whether the blade bearing of being purchased satisfies the requirement of technical manual.
Under the situation of second step for 3 loadings of band semi-girder, being about to semi-girder 3 and pitch variable bearings 6 connects together by bolt, and load at semi-girder 3 ends, the weight that is loaded is adjusted by counterweight 5, simulate aerodynamic loading in the actual aerogenerator operational process with this, by loading (promptly by applying different counterweights) successively, start pitch-controlled system, and the driving moment of reading pitch variable bearings 6 under this load.
The 3rd step is for by analyzing the data of measuring, and obtain the moment of friction of the blower variable-pitch bearing 6 tested, and moment of friction is with the relation of load change.
Accompanying drawing 4 is the structural representation of counterweight 5, and counterweight 5 is the opening circular block of Different Weight, it can be hung on the charger base very easily.
When experimentizing, at first fixing tool 2 is fixed on the test table top, then with the wheel hub package system 1 that assembles by bolt to fixing tool 2, connect the data line of service box and computer, the rotation pitch-controlled system, the moment of friction of pitch variable bearings in the time of can testing zero load, rotational speed can be revised in computer program, and sense of rotation and position are by the control of service box.Can rotate more and look for a mean value several times.
Charger 4 is coupled together by a deep groove ball bearing and semi-girder 3, when deep groove ball bearing and semi-girder 3 rotate like this, the bearing inner race rotation, the outer ring is motionless.Then different counterweight 5 is added on the charger 4, a kind of weight can be measured one group of data, can measure the relation between a lot of groups of moment of frictions and the load like this.Not only driving moment be can read by software, the power and the temperature rise of oar drive motor become in the time of can also reading diverse location.
The utility model can also be used to carrying out the ultimate strength and the torture test of the ultimate strength of wheel hub and torture test, pitch variable bearings except finishing above-mentioned measurement variable-paddle bearing friction moment.
The specific implementation method all is according to above-mentioned loading method bearing progressively to be loaded.
1, on the charger of semi-girder end, progressively loads, the ultimate load that pitch variable bearings bore when being added to actual motion is observed wheel hub and pitch variable bearings state, and the rotation pitch variable bearings, whether normal, can finish the strength test of wheel hub and pitch variable bearings if observing its operation;
2, being applied to the load of regulation equally on the charger of semi-girder end, making pitch variable bearings be in rotation status, keep the regular hour, whether normal, can finish the torture test of wheel hub and pitch variable bearings if observing wheel hub and pitch variable bearings.
Claims (6)
1, a kind of variable-paddle bearing friction moment of wind-driven generator simulation test device, it is characterized in that: comprise a fixing tool, fixing tool is installed on the testing table, be equipped with on the fixing tool wheel hub package system of waiting to test pitch variable bearings is housed, waiting to test pitch variable bearings is connected by the semi-girder that bolt and is used to test, end at semi-girder is hung with charger, hangs with the counterweight that is used to adjust loaded weight under the charger.
2, variable-paddle bearing friction moment of wind-driven generator simulation test device as claimed in claim 1 is characterized in that: described semi-girder is the shape that front end and pitch variable bearings match, and comprises forward flange, cylinder, hanger, rear flange, axle; Cylindrical portions may is a cylinder, and the cylinder front end is welded with flange, and flange is connected with pitch variable bearings, a rear end flange of welding and an axle of semi-girder, and axle is assembled together with the deep groove ball bearing of charger.
3, variable-paddle bearing friction moment of wind-driven generator simulation test device as claimed in claim 1 is characterized in that: described charger has comprised boatswain chair, deep groove ball bearing, outer ring snap ring, hexagon socket cap head screw, plain washer; Be connected by a deep groove ball bearing between straight pin, taper bolt, the base, the charger first half and semi-girder; The charger Lower Half is to be welded by a round bar and a base plate, can very easily counterweight be suspended on the charger; By increasing the weight of counterweight, upsetting moment can be loaded into consistent with virtual condition.
4, variable-paddle bearing friction moment of wind-driven generator simulation test device as claimed in claim 3 is characterized in that: described deep groove ball bearing outer ring cooperates with a boatswain chair endoporus, and the axle of inner ring and semi-girder couples together by transition fit.
5, variable-paddle bearing friction moment of wind-driven generator simulation test device as claimed in claim 3 is characterized in that: described outer ring snap ring links together by hexagon socket cap head screw, plain washer and a boatswain chair; Base links fixing with a boatswain chair by straight pin and taper bolt.
6, variable-paddle bearing friction moment of wind-driven generator simulation test device as claimed in claim 1 is characterized in that: described counterweight is the opening circular block of Different Weight, it can be hung on the charger base very easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920063909U CN201373783Y (en) | 2009-04-01 | 2009-04-01 | Testing device of variable paddle bearing friction torque of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920063909U CN201373783Y (en) | 2009-04-01 | 2009-04-01 | Testing device of variable paddle bearing friction torque of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373783Y true CN201373783Y (en) | 2009-12-30 |
Family
ID=41499867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920063909U Expired - Lifetime CN201373783Y (en) | 2009-04-01 | 2009-04-01 | Testing device of variable paddle bearing friction torque of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373783Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335760A (en) * | 2013-06-26 | 2013-10-02 | 泉州市泉永机械发展有限公司 | Carrier roller starting torque measuring device |
| CN109578221A (en) * | 2018-12-18 | 2019-04-05 | 明阳智慧能源集团股份公司 | A kind of testing stand of wind generator unit wheel hub and pitch-controlled system load test |
-
2009
- 2009-04-01 CN CN200920063909U patent/CN201373783Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335760A (en) * | 2013-06-26 | 2013-10-02 | 泉州市泉永机械发展有限公司 | Carrier roller starting torque measuring device |
| CN103335760B (en) * | 2013-06-26 | 2015-04-08 | 泉州市泉永机械发展有限公司 | Carrier roller starting torque measuring device |
| CN109578221A (en) * | 2018-12-18 | 2019-04-05 | 明阳智慧能源集团股份公司 | A kind of testing stand of wind generator unit wheel hub and pitch-controlled system load test |
| CN109578221B (en) * | 2018-12-18 | 2024-01-26 | 明阳智慧能源集团股份公司 | Test bed for loading test of hub and pitch system of wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |
|
| CX01 | Expiry of patent term |