CN202362139U - Variable speed variable pitch bearing testing device of wind generating set - Google Patents
Variable speed variable pitch bearing testing device of wind generating set Download PDFInfo
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- CN202362139U CN202362139U CN2011202843193U CN201120284319U CN202362139U CN 202362139 U CN202362139 U CN 202362139U CN 2011202843193 U CN2011202843193 U CN 2011202843193U CN 201120284319 U CN201120284319 U CN 201120284319U CN 202362139 U CN202362139 U CN 202362139U
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- load maintainer
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Abstract
The utility model provides a variable speed variable pitch bearing testing device of a wind generating set. The variable speed variable pitch bearing testing device comprises a pedestal, a loading mechanism and a connecting mechanism. The pedestal is provided with a wheel hub that is used for mounting a to-be-tested bearing. The wheel hub is equipped with a variable pitch driving device that is used for driving the to-be-tested bearing to rotate. The loading mechanism is connected with the to-be-tested bearing via the connecting mechanism. The connecting mechanism comprises a connecting support and a connecting band. The connecting support is fixed on the rotating ring of the to-be-tested bearing. One end of the connecting band is connected with the connecting support, and the other end of the connecting band is connected with the loading mechanism. The variable speed variable pitch bearing testing device of a wind generating set is simple to be mounted, occupies a small area, is simple and easy to be used, is low in cost, is suitable for bearings with various sizes, and requires no matching flanges to be manufactured for bearings with different sizes.
Description
Technical field
The utility model relates to wind generating technology, relates in particular to a kind of wind generating set pitch control bearing proving installation.
Background technology
Mostly modern Large-scale Wind Turbines is the speed-changing oar-changing type; This kind type can be before unit reach rated speed according to wind speed adjustment self rotating speed to obtain higher output power; And after unit reaches rated speed, can to guarantee unit the situation that exceeds the speed limit and overload not appear through being installed in the propeller pitch angle of the pitch-controlled system change blade on the wheel hub; If pitch-controlled system breaks down; Then unit bust occurs owing to adjusting the blade pitch angle when wind speed is big, and therefore, pitch-controlled system is most important for the safe operation of modern Large-scale Wind Turbines.
At present, in wind power generating set, adopt electric variable propeller system usually, it comprises pitch control cabinet, becomes oar drive motor, variable pitch speed reducer, change oar driven wheel and/or cog belt and pitch variable bearings etc.Wherein, pitch variable bearings since when operation the stand under load situation complicated, thereby require that its bearing capacity is strong, reliability is high.Yet; Existing pitch variable bearings basically all adopts biserial spherical roller structure; Have play between rolling body and raceway, and the size of play can influence the friction factor and the damping torque of bearing usually, thereby just need adjust so that it is in zero windage or negative play play.Yet in the play adjustment process,, thereby produce excessive damping torque and bearing is rotated clamping stagnation occurs, and then make that to become the oar drive motor overheated and influence the reliability of system if the unreasonable bearing operation that can cause of play adjustment has some setbacks.
Because pitch-controlled system is most important to the safe operation of unit, therefore before the pitch-controlled system assembling, whether normal whether and each parts meet design requirement with check pitch-controlled system function need to become the oar test.Yet, because pitch variable bearings manufacturer before dispatching from the factory generally can carry out the bearing no load test so that the play of pitch variable bearings is checked, so wind-powered electricity generation unit manufacturer generally no longer tests separately pitch variable bearings.So just, there is following problem: one; Usually no load test is only done with the inspection bearing clearance by pitch variable bearings manufacturer; But it is also unreasonable as bearing practical set play with the unloaded play of bearing; Because pitch variable bearings can receive axial force, radial force and upsetting moment under actual condition, and these load have very big influence to bearing clearance and bearing friction coefficient.Two; If in the pitch-controlled system test, pitch variable bearings is not loaded; Then be difficult to find defective bearing; This can be increased in the probability that uses the defectiveness bearing in the wind generating set pitch control system, thereby has reduced the reliability of pitch-controlled system, has increased potential safety hazard and the maintenance cost and the difficulty of wind power generating set.
For addressing the above problem; Publication number is 101354313 of CN are called provides a kind of wind generating set pitch control bearing in the one Chinese patent application of a " method of testing of wind generating set pitch control bearing and test platform " test platform, and it includes sole plate, wheel hub, weight arm and balancing weight.These pitch variable bearings test platform characteristics are to have used weight arm and balancing weight that bearing is loaded, thereby can check whether the play that bearing loads under the situation meets the demands, and whether bearing exists defective.But this technology has following shortcoming: one, and the weight arm area occupied is excessive, and manufacturing cost is higher, and the installation of weight arm, dismounting and adjustment process are complicated, must use assistive device; Two, the bearing size difference need be used different mounting flanges when then weight arm is installed, thereby has increased testing cost.
The utility model content
The utility model is devoted to solve the problems referred to above that prior art exists; For this reason, the utility model provides a kind of wind generating set pitch control bearing proving installation, and it installs simple; Floor area is little; It is lower to be simple and easy to usefulness and cost, and is applicable to the bearing of various sizes, need not to make supporting flange into the bearing of different size.
For solving the problems of the technologies described above; The utility model provides a kind of wind generating set pitch control bearing proving installation, and it comprises base, load maintainer and bindiny mechanism, and said base is provided with the wheel hub that is used to install bearing to be tested; Be provided with in the said wheel hub and be used to drive the change oar drive unit that bearing to be tested rotates; Said load maintainer is connected with bearing to be tested through said bindiny mechanism, and said bindiny mechanism comprises connection support and connecting band, and said connection support is fixed on the swivel becket of said bearing to be tested; Said connecting band one end connects with the said support that is connected, and the other end is connected with said load maintainer.
Wherein, said connection support comprises two bearing web joints and at least one connecting link, and said two bearing web joints are arranged on the opposite side of bearing swivel becket to be tested.
Wherein, on every bearing web joint, be provided with mounting hole and connecting hole, said bearing web joint is fixed on the bearing to be tested through mounting hole and securing member, and said connecting link is fixed between two said bearing web joints through said connecting hole and securing member.
Wherein, be provided with ring set at said connecting band one end, and said connecting link passes said ring set.
Wherein, the quantity of said load maintainer is corresponding with number of bearings to be tested.
Wherein, said load maintainer comprises counterweight load maintainer or electronic load maintainer.
Wherein, said counterweight load maintainer comprises vertical support frame, balancing weight and riser, and said vertical support frame is provided with the guide rail that supplies said riser to slide, and is provided with pulley at said vertical support frame top and bottom.
Wherein, the said loading support vertical rack that is symmetrical structure.
Wherein, said counterweight load maintainer is connected with said connecting band through annular hanger and wirerope.
Wherein, said electronic load maintainer is connected with reel, and said connecting band can be wound on the said reel.
The utlity model has following effect:
The wind generating set pitch control bearing proving installation that the utility model provides; Through the connection support is set on bearing to be tested; Connect load maintainer and bearing to be tested and transmit pulling force to bring through connection; Thereby on the pitch variable bearings circumference, apply tangential force to realize the loading to pitch variable bearings, compared with prior art, the pitch variable bearings proving installation of the utility model connects load maintainer and bearing to be tested through connecting band; Thereby need not to make supporting flange into the bearing of different size, be applicable to the bearing of various sizes.
In a kind of preferred implementation of the utility model; Load maintainer is motor or the counterweight load maintainer that adopts the balancing weight mode of vertically arranging; Thereby the wind generating set pitch control bearing proving installation floor area that makes the utility model provide is little, and it is lower to be simple and easy to usefulness and cost.
Description of drawings
The pitch variable bearings proving installation structural representation that Fig. 1 provides for the utility model one embodiment;
The structural representation of the bearing web joint that Fig. 2 provides for the utility model one embodiment;
The connection supporting structure synoptic diagram that Fig. 3 provides for the utility model one embodiment;
Fig. 4 is the synoptic diagram that is connected of the utility model one embodiment bearing web joint and bearing to be tested;
The load maintainer front elevation that Fig. 5 provides for the utility model one embodiment;
The load maintainer side view that Fig. 6 provides for the utility model one embodiment.
Embodiment
For making those skilled in the art person understand the technical scheme of the utility model better, the wind generating set pitch control bearing proving installation that the utility model provides is elaborated below in conjunction with accompanying drawing.
Please consult Fig. 1 to Fig. 6 in the lump; The wind generating set pitch control bearing proving installation that embodiment of the utility model provides comprises base (figure does not show), load maintainer 3 and bindiny mechanism; Base is provided with the wheel hub 1 that is used to install bearing 2 to be tested; In wheel hub 1, be provided with the change oar drive unit that is used to drive bearing 2 rotations to be tested, load maintainer 3 is connected with bearing 2 to be tested through bindiny mechanism.In the present embodiment; Base, wheel hub 1 and load maintainer all fix on the ground; 1 is equipped with three groups of bearings 2 to be tested on wheel hub, and these three bearings 2 to be tested 120 degree of on circumference, being separated by are symmetrically distributed, and corresponding to each bearing 2 to be tested a cover load maintainer 3 are set respectively.
Wherein, Load maintainer 3 comprises loading support 32 and balancing weight group 33; Loading support 32 is the vertical rack of symmetrical structure; It is provided with pulley 31 and guide rail 35, and counterweight is divided into 2 groups of symmetric offset spread, and each set of weights all is equipped with the lifting structure of being made up of hanging bolt 36, riser 37, pull bar and balancing weight Fixed latches 34.Bindiny mechanism comprises connection support and connecting band; Connecting support is fixed on the swivel becket of bearing 2 to be tested; Connecting band one end be connected support and connect; The other end is connected with load maintainer 3, connects support and comprises two bearing web joints 4 and at least one connecting link 42, and bearing web joint 4 is provided with mounting hole 40 and connecting hole 41.
When test, at first two bearing gussets 4 are installed on two end faces of bearing 2 swivel beckets to be tested respectively through mounting hole 40 and bolt; Then connecting link 42 is passed connecting hole 41 and the ring set of connecting band one end on the bearing gusset 4 successively; And connecting link 42 is fixed on two bearing gussets 4 with nut; The connecting band other end is connected with two wireropes through annular hanger; The wirerope other end is walked around successively and is installed in the pulley 31 that loads support 32 bottoms and top, and is connected with the hanging bolt 36 of two set of weights respectively.When carrying out the pitch variable bearings test; Becoming the oar motor rotates through transmission system drives bearing 2 swivel beckets to be tested; Connecting band is stressed and be wound on voluntarily on the bearing top circle face to be tested; Act on the load on the bearing 2 thereby can move up and down to form along the guide rail 35 that loads support 32 in balancing weight group 33 under the traction of connecting band simultaneously, wherein, thereby the big I of load realizes through the balancing weight weight that the 34 position selections of change Fixed latches need.
The pitch variable bearings load maintainer of present embodiment adopts the arrange stroke of balancing weight of vertical mode, therefore, takes up an area of for a short time, saves the space, has improved the utilization of area rate of workshop, is convenient to batch configuration; And; The load maintainer simple installation that present embodiment provides; Do not have too much connection and fastening operation, need not to use hoisting device, and the pitch variable bearings proving installation that present embodiment provides adopts connecting band to connect and the transmission pulling force; Realize loading through on the pitch variable bearings circumference, applying tangential force, be applicable to the pitch variable bearings of different size and need not make supporting mounting flange especially pitch variable bearings.
Need to prove; In practical application; Load maintainer also is confined to above-mentioned counterweight load maintainer, for example can adopt electronic loading, promptly; The mode that adopts motor drives reel coiling connecting band and make connecting band keep stablize tension force also can be used for replacing counterweight, thereby realization applies the effect of torsion load to bearing to be tested through connecting band.In addition; In practical application, load the load requirement of the upper limit to exceeding single cover load maintainer, the mode that can adopt two covers or overlap the load maintainer parallel connection more realizes; And when adopting the above load maintainer of two covers; Connect support and can comprise 2, can be connected on the different connecting links, so that load maintainer is through connecting band imposed load respectively corresponding to the connecting band of every cover load maintainer with upper connecting rod.
In addition, also need explain to such an extent that be, though in the present embodiment; Three bearings to be tested are installed on wheel hub, but in practical application, also can only install single or two pitch variable bearings; At this moment; Only be required to be these single or two bearings to be tested configuration load maintainers and get final product, that is, the quantity of load maintainer is corresponding with the quantity of bearing to be tested in the utility model.
It is understandable that above embodiment only is the illustrative embodiments that adopts for the principle that the utility model is described, yet the utility model is not limited thereto.For the one of ordinary skilled in the art, under the situation of spirit that does not break away from the utility model and essence, can make various modification and improvement, these modification and improvement also are regarded as the protection domain of the utility model.
Claims (10)
1. wind generating set pitch control bearing proving installation; Comprise base, load maintainer and bindiny mechanism, said base is provided with the wheel hub that is used to install bearing to be tested, is provided with in the said wheel hub to be used to drive the change oar drive unit that bearing to be tested rotates; Said load maintainer is connected with bearing to be tested through said bindiny mechanism; It is characterized in that said bindiny mechanism comprises connection support and connecting band, said connection support is fixed on the swivel becket of said bearing to be tested; Said connecting band one end connects with the said support that is connected, and the other end is connected with said load maintainer.
2. wind generating set pitch control bearing proving installation as claimed in claim 1; It is characterized in that; Said connection support comprises two bearing web joints and at least one connecting link; Said two bearing web joints are arranged on the opposite side of bearing swivel becket to be tested, and said connecting link is fixed between two said bearing web joints.
3. wind generating set pitch control bearing proving installation as claimed in claim 1; It is characterized in that; On every bearing web joint, be provided with mounting hole and connecting hole; Said bearing web joint is fixed on the bearing to be tested through mounting hole and securing member, and said connecting link is fixed between two said bearing web joints through said connecting hole and securing member.
4. like claim 2 or 3 described wind generating set pitch control bearing proving installations, it is characterized in that, be provided with ring set at said connecting band one end, and said connecting link passes said ring set.
5. like any described wind generating set pitch control bearing proving installation of claim 1-3, it is characterized in that the quantity of said load maintainer is corresponding with number of bearings to be tested.
6. wind generating set pitch control bearing proving installation as claimed in claim 5 is characterized in that said load maintainer comprises counterweight load maintainer, electronic load maintainer or the combination of the two.
7. wind generating set pitch control bearing proving installation as claimed in claim 6; It is characterized in that; Said counterweight load maintainer comprises loading support, balancing weight and riser; Said loading support is provided with the guide rail that supplies said riser to slide, and is provided with pulley at said vertical support frame top and bottom.
8. wind generating set pitch control bearing proving installation as claimed in claim 7 is characterized in that said loading support is the vertical rack of symmetrical structure.
9. wind generating set pitch control bearing proving installation as claimed in claim 6 is characterized in that, said counterweight load maintainer is connected with said connecting band through annular hanger and wirerope.
10. wind generating set pitch control bearing proving installation as claimed in claim 6 is characterized in that said electronic load maintainer is connected with reel, and said connecting band can be wound on the said reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202843193U CN202362139U (en) | 2011-08-05 | 2011-08-05 | Variable speed variable pitch bearing testing device of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202843193U CN202362139U (en) | 2011-08-05 | 2011-08-05 | Variable speed variable pitch bearing testing device of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362139U true CN202362139U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202843193U Expired - Lifetime CN202362139U (en) | 2011-08-05 | 2011-08-05 | Variable speed variable pitch bearing testing device of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362139U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089768A (en) * | 2014-07-25 | 2014-10-08 | 北车风电有限公司 | Hub testing device for wind generating set |
| CN104502110A (en) * | 2015-01-23 | 2015-04-08 | 太原重工股份有限公司 | Variable-pitch motor loading device |
| CN105547672A (en) * | 2015-12-16 | 2016-05-04 | 太原重工股份有限公司 | Integrated tester for wind turbine generator system |
| CN110542556A (en) * | 2019-10-09 | 2019-12-06 | 浙江申发轴瓦股份有限公司 | Tilting pad sliding bearing test box, test bench and test method |
-
2011
- 2011-08-05 CN CN2011202843193U patent/CN202362139U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089768A (en) * | 2014-07-25 | 2014-10-08 | 北车风电有限公司 | Hub testing device for wind generating set |
| CN104502110A (en) * | 2015-01-23 | 2015-04-08 | 太原重工股份有限公司 | Variable-pitch motor loading device |
| CN104502110B (en) * | 2015-01-23 | 2017-03-15 | 太原重工股份有限公司 | Pitch motor charger |
| CN105547672A (en) * | 2015-12-16 | 2016-05-04 | 太原重工股份有限公司 | Integrated tester for wind turbine generator system |
| CN105547672B (en) * | 2015-12-16 | 2017-10-13 | 太原重工股份有限公司 | Wind turbines combined test apparatus |
| CN110542556A (en) * | 2019-10-09 | 2019-12-06 | 浙江申发轴瓦股份有限公司 | Tilting pad sliding bearing test box, test bench and test method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |