CN101354313B - Method for testing paddle-changing bearing in wind generating set - Google Patents
Method for testing paddle-changing bearing in wind generating set Download PDFInfo
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- CN101354313B CN101354313B CN2008101191180A CN200810119118A CN101354313B CN 101354313 B CN101354313 B CN 101354313B CN 2008101191180 A CN2008101191180 A CN 2008101191180A CN 200810119118 A CN200810119118 A CN 200810119118A CN 101354313 B CN101354313 B CN 101354313B
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Abstract
The invention discloses a test method of a test platform for a variable propeller bearing of a wind turbine, which comprises the following steps: 1) conducting a detection and a test run to a variable propeller drive device; 2) mounting a fixing ring of the bearing to be tested by using a hub of the test platform, simultaneously connecting a rotation ring of the bearing to be tested with a balance weight arm, driving the bearing to be tested to rotate slowly through the variable propeller device, and confirming a tester without jamming and abnormal noise; 3) conducting an operation test to the bearing to be tested for some time in the same direction, recording a variable propeller motor torque value and temperature rise of the variable propeller drive device in real time; 4) judging whether the bearing to be tested is qualified according to the torque value and the temperature rise. The test method of the invention is safe and reliable and capable of simulating the working condition of the bearing.
Description
Technical field
The present invention is about wind power generation field, more particularly, and about the method for testing and the test platform of pitch variable bearings in a kind of wind power generating set.
Background technology
The function of pitch variable bearings is the service requirement according to the wind-powered electricity generation unit in the wind power generating set, realizes the rotation of blade with respect to wheel hub.Specifically be that change is starched Bearing Installation between blade and wheel hub, form wind power generating set with parts such as change oar motor, reductor, detent, shaft coupling, frequency conversion tank and driven wheels.Wherein, pitch variable bearings is the parts of most critical, the requirement load-bearing capacity is strong, the reliability height, and existing the change starched the structure that bearing adopts double ball, between spin and the raceway axially and be zero windage or negative play radially, the size of play and raceway, the machining precision of spin, the raceway heat treatment hardness and the depth of quenching, the assemblings of bearing etc. are all multifactor relevant, because the big young pathbreaker of play influences the friction factor of bearing, therefore adjust improper as play, the situation of jam will occur after the Bearing Installation, thereby cause the pitch-controlled system moment of resistance excessive, phenomenons such as motor overheating occur, also have simultaneously to install and change complexity, maintenance difficult, problems such as serviceable life is short.
For avoiding the generation of this situation, bearing producer except that taking special assembling technology, also to the bearing preceding no-load test of dispatching from the factory, checks the play of pitch variable bearings in the process of assembling.And as wind-powered electricity generation unit supplier, generally no longer pitch variable bearings is tested.Connect according to this assembly and checkout flow process and then have following problem:
1, bearing only carries out no-load test, is not inconsistent with operating condition;
2, the load of pitch variable bearings is from three aspects, i.e. axial force F a, radial force Fr, and the bending moment Mz in the bearing plane.These load are very big to the friction factor influence of the play of pitch variable bearings and even bearing, if the play during according to zero load is adjusted according to unreasonable as the assembling of bearing;
3, do not carry out the load test that simulates of bearing as wind-powered electricity generation unit supplier, be difficult in time find to have the bearing that lacks the danger, this will cause follow-up bearing replacing difficulty, influence the normal operation of wind-powered electricity generation unit.
4, in general, bearing supply of material producer aweather provides friction factor in group of motors design side according to experimental formula, to determine parameters such as power of motor, gear case moment of torsion, because experimental formula proposes at all pivoting support class bearings, have limitation in the use, this will cause the inaccurate of other Component Design.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide the test platform and the method for testing thereof of pitch variable bearings in a kind of simple in structure, the safe and reliable and wind power generating set that can simulate the operating mode of bearing.
In order to achieve the above object, technical scheme of the present invention is achieved in that the test platform of pitch variable bearings in a kind of wind power generating set, and it includes:
Sole plate, described sole plate setting is on the ground;
Be used to install the wheel hub of tested bearing race snap, described wheel hub is connected with described sole plate;
Weight arm, an end of described weight arm is connected with the swivel becket of tested bearing;
Balancing weight, described balancing weight are arranged on the other end that described weight arm is connected with described tested bearing; And
Become the oar drive unit, described change oar drive unit is arranged in the described wheel hub, is used to drive the swivel becket that described tested bearing is connected with described weight arm.
Described change oar drive unit includes and becomes oar motor, pitch control cabinet and be arranged on the interior change oar gear of described wheel hub, described change oar motor is arranged on the dividing plate of described wheel hub inside, described pitch control cabinet is arranged in the described wheel hub, described change oar gear and described pitch control cabinet are connected with described change oar motor respectively, and the swivel becket engagement of simultaneously described change slurry gear and described tested bearing drives.
Described weight arm and described corresponding balancing weight are 3 groups.
Described weight arm is symmetrical distribution, and angle each other is 120 °.
A kind ofly utilize described in the claim 1 to 5 test mode of the test platform of pitch variable bearings in the wind power generating set, include the following step:
(1) described change oar drive unit is checked and test working;
(2) utilize the described wheel hub of test platform that the set collar of described tested bearing is installed, swivel becket with described tested bearing is connected with described weight arm simultaneously, utilize described change oar drive unit to drive described tested bearing and slowly rotate, the validation test device does not have jam and extraordinary noise;
(3) described tested bearing is carried out operational test, same direction operation a period of time, the described change oar of real time record Motor torque numerical value and temperature rise;
(4) judge according to torque value and temperature rise whether tested bearing is qualified.
In described (3) step, the opposite end that is connected with described tested bearing at described weight arm increases balancing weight.
In described (3) step, the time of same direction operation is 3 hours.
After described (3) step, increase the reverse direction step of operation a period of time.
Beneficial effect after the employing technique scheme is: the test platform of pitch variable bearings can simulate each main operating mode of tested bearing by the numerical value of adjustment balancing weight and the round-robin number of turns of tested bearing in the wind power generating set of the present invention; Adopt parts and the assembling form identical, accomplish the whole drive system complete simulation with the wind-powered electricity generation unit; By the parameter of monitoring motor, can make judgement to the play and the moment of friction of bearing; According to test figure, can carry out verification to the rationality of design, the foundation of calculating is provided for the design of other parts; By each tested bearing is detected, can avoid defective bearing to be installed on the unit, cause the maintenance of follow-up bearing to change problems such as difficulty; By adjusting the numerical value of balancing weight, can finish test to other model bearing, be fit to carry out the test of seriation bearing.
Description of drawings
Fig. 1 is the structural representation of the test platform of pitch variable bearings in the wind power generating set among the present invention;
Fig. 2 looks synoptic diagram for the right side of the test platform of pitch variable bearings in the wind power generating set among the present invention.
Embodiment
Below in conjunction with accompanying drawing specific embodiment among the present invention is described in further detail.
As shown in Figures 1 and 2, the test platform of pitch variable bearings includes in the wind power generating set of the present invention: sole plate 1, wheel hub, weight arm 2, balancing weight 3 and change oar drive unit, wherein, sole plate 1 can be by settings such as bolts on the ground, the wheel hub that is used for installation testing bearing 7 set collars can be connected with sole plate 1 by bolt, one end of weight arm 2 is connected with the swivel becket of tested bearing 7, balancing weight 3 is arranged on the other end that weight arm 2 is connected with tested bearing 7, the change oar drive unit that is arranged in the described wheel hub is used to drive the swivel becket that tested bearing 7 is connected with weight arm 2, it includes and becomes oar motor 4, pitch control cabinet 5 and be arranged on change oar gear 6 in the described wheel hub, becoming oar motor 4 is arranged on the dividing plate of described wheel hub inside, pitch control cabinet 5 is arranged in the described hub body, become oar gear 6 and pitch control cabinet 5 and be connected with change oar motor 4 respectively, become the swivel becket engagement driving of slurry gear 6 and tested bearing 7 simultaneously.Connected mode can be bolt or flange, can also connect for other, not as limit.Corresponding weight arm 2 is 3 groups with balancing weight 3, and is symmetrical distribution, and its angle each other is 120 °.
The test mode of the test platform of pitch variable bearings in the wind power generating set of the present invention includes the following step:
(1) described change oar drive unit is checked and test working;
(2) utilize the described wheel hub of test platform that the set collar of tested bearing 7 is installed, swivel becket with tested bearing 7 is connected with weight arm 2 simultaneously, utilize described change oar drive unit to drive tested bearing 7 and slowly rotate, the validation test device does not have jam and extraordinary noise;
(3) tested bearing 7 is carried out operational test, same direction operation a period of time, for example be 3 hours working time, real time record becomes oar motor 4 torque value and temperature rise, and can be according to the situation of tested bearing 7, suitably the opposite end that is connected with tested bearing 7 at weight arm 2 increases balancing weight 3, so that simulate various operating mode;
(4) rightabout operation in increase and the step (3), for example be 3 hours working time, and real time record becomes the torque value and the temperature rise of oar motor 4;
(5) judge according to the torque value that is write down and temperature rise whether tested bearing 7 is qualified.
The test platform of pitch variable bearings has the following advantages in the wind power generating set of the present invention:
1, by the numerical value of adjustment balancing weight 3 and the round-robin number of turns of tested bearing, can simulate each main operating mode of tested bearing;
2, employing parts and the assembling form identical with the wind-powered electricity generation unit accomplished the whole drive system complete simulation;
3, by the parameter of monitoring motor, can make judgement to the play and the moment of friction of tested bearing;
4, according to test figure, can carry out verification to the rationality of design, the foundation of calculating is provided for the design of other parts;
5, by each tested bearing 7 is detected, can avoid defective bearing to be installed on the unit, cause the maintenance of follow-up bearing to change problems such as difficulty;
6, by adjusting the numerical value of balancing weight 3, can finish test, be fit to carry out the test of seriation bearing other model bearing.
The above is a preferred embodiment of the present invention only, is not to be used for limiting to claim of the present invention, and the equivalent structure that all utilizations instructions of the present invention and accompanying drawing content are done changes, and all in like manner is contained in the scope of the present invention.
Claims (4)
1. the method for testing of the test platform of pitch variable bearings in the wind power generating set is characterized in that the test platform of wind generating set pitch control bearing includes:
Sole plate, described sole plate setting is on the ground;
Be used to install the wheel hub of tested bearing race snap, described wheel hub is connected with described sole plate;
Weight arm, an end of described weight arm is connected with the swivel becket of tested bearing;
Balancing weight, described balancing weight are arranged on the other end that described weight arm is connected with described tested bearing;
Become the oar drive unit, described change oar drive unit is arranged in the described wheel hub, is used to drive the swivel becket that described tested bearing is connected with described weight arm;
The method of testing of the test platform of pitch variable bearings includes the following step in the wind power generating set:
(1) described change oar drive unit is checked and test working;
(2) utilize the described wheel hub of described test platform that the set collar of described tested bearing is installed, swivel becket with described tested bearing is connected with described weight arm simultaneously, utilize described change oar drive unit to drive described tested bearing and slowly rotate, the validation test device does not have jam and extraordinary noise;
(3) described tested bearing is carried out operational test, same direction operation a period of time, the change oar Motor torque numerical value and the temperature rise of the described change oar of real time record drive unit;
(4) judge according to torque value and temperature rise whether tested bearing is qualified.
2. the method for testing of the test platform of pitch variable bearings in a kind of wind power generating set according to claim 1, it is characterized in that, in described (3) step, the opposite end that is connected with described tested bearing at described weight arm increases the numerical value of described balancing weight.
3. the method for testing of the test platform of pitch variable bearings is characterized in that in a kind of wind power generating set according to claim 1, and in described (3) step, the time of same direction operation is 3 hours.
4. the method for testing of the test platform of pitch variable bearings is characterized in that in a kind of wind power generating set according to claim 1, after described (3) step, increases the reverse direction step of operation a period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101191180A CN101354313B (en) | 2008-08-27 | 2008-08-27 | Method for testing paddle-changing bearing in wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101191180A CN101354313B (en) | 2008-08-27 | 2008-08-27 | Method for testing paddle-changing bearing in wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101354313A CN101354313A (en) | 2009-01-28 |
| CN101354313B true CN101354313B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101191180A Active CN101354313B (en) | 2008-08-27 | 2008-08-27 | Method for testing paddle-changing bearing in wind generating set |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313647B (en) * | 2010-07-08 | 2013-11-06 | 大连华锐重工集团股份有限公司 | Assembly and disassembly device of weight balancing arm for testing wind power pitch bearing |
| GB2486405B (en) * | 2010-12-08 | 2013-09-11 | Vestas Wind Sys As | Mounting arrangement for pitch gear |
| CN102103035B (en) * | 2010-12-07 | 2013-06-12 | 瓦房店轴承集团有限责任公司 | Test method for main shaft bearing of wind driven generator |
| GB2486407A (en) * | 2010-12-08 | 2012-06-20 | Vestas Wind Sys As | Wind turbine pitch system having segmented pitch gear |
| CN102589883B (en) * | 2012-02-28 | 2014-07-02 | Bpw(梅州）车轴有限公司 | Bearing temperature, dynamic torque detection testing method and testing device |
| CN102797628A (en) * | 2012-05-09 | 2012-11-28 | 江苏辉能达电气有限公司 | Regular hexagonal prism wind energy pitch control cabinet body |
| CN104084801A (en) * | 2014-07-15 | 2014-10-08 | 安庆银泰轴承有限公司 | Bearing manufacturing process |
| CN104502110B (en) * | 2015-01-23 | 2017-03-15 | 太原重工股份有限公司 | Pitch motor charger |
| CN105928708A (en) * | 2016-07-14 | 2016-09-07 | 沈阳工程学院 | High-power wind driven generator pitch bearing fretting wear testing device |
| CN108731957B (en) * | 2018-03-27 | 2021-04-06 | 太原重工新能源装备有限公司 | Variable pitch system test device and scheme |
| CN109357850A (en) * | 2018-10-15 | 2019-02-19 | 观为监测技术无锡股份有限公司 | Detection system, the detection method of blade and wheel hub based on Wind turbines |
| 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 |
| CN113418702B (en) * | 2021-07-26 | 2022-10-11 | 重庆大学 | Pitch-changing bearing high-strength steel crack simulation monitoring test device |
| CN113820122B (en) * | 2021-08-20 | 2024-04-30 | 浙江机电职业技术学院 | Hub unit sealing ring torque test board |
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