CN201844920U - Test device for variable pitch bearing of wind generating set - Google Patents
Test device for variable pitch bearing of wind generating set Download PDFInfo
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- CN201844920U CN201844920U CN2010205073133U CN201020507313U CN201844920U CN 201844920 U CN201844920 U CN 201844920U CN 2010205073133 U CN2010205073133 U CN 2010205073133U CN 201020507313 U CN201020507313 U CN 201020507313U CN 201844920 U CN201844920 U CN 201844920U
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Abstract
The utility model discloses a test device for a variable pitch bearing of a wind generating set, which comprises a first bracket and a second bracket, wherein the first bracket is provided with a variable pitch bearing seat, and the variable pitch bearing seat is provided with variable pitch bearing driving device; the second bracket is provided with an auxiliary bearing and a force loading center shaft, one end of the force loading center shaft is connected with the auxiliary bearing, and the other end of the force loading center shaft is connected with axial force loading equipment and overturning force loading equipment; the second bracket is further provided with radial force loading equipment, the radial force loading equipment is near to the auxiliary bearing and is connected with the force loading center shaft, and the force loading direction of the radial force loading equipment is perpendicular to the axial direction of the force loading center shaft; and the variable pitch bearing is symmetrical with the auxiliary bearing for installing the variable pitch bearing to be tested. The test device for the variable pitch bearing of the wind generating set has simple structure, is convenient to realize, and can effectively test the variable pitch bearing.
Description
Technical field
The utility model relates to wind generating technology, relates in particular to a kind of change slurry bearing proving installation of wind power generating set.
Background technology
Enhancing along with social enviroment protection consciousness, wind generating technology utilizes technology as a clean energy resource, obtained development fast, various wind power generating set have been put in the actual wind-power electricity generation application, because wind power generating set operates in the external environment condition, and need operation generating continuously throughout the year, therefore, each parts in the wind power generating set all need to have higher performance, have high reliability and stability.
Wherein, change slurry bearing is the critical component in the wind power generating set, is used to be connected between blade and the wheel hub, and to realize relatively rotating between blade and the wheel hub, it needs advantages of high bearing capacity; And, because wind power generating set needs the long-time work that continues, become the slurry bearing and also must have stronger operation life, promptly have higher anti-fatigue performance, change slurry bearing reliability of operation has significant effects to the overall performance of whole wind power generating set.
But, before existing wind power generating set is installed, generally do not test becoming the slurry bearing, perhaps test is simple, make and become the slurry Bearing Installation after wind power generating set, easily because of becoming slurry bearing self reason, for example load-bearing capacity is not enough, anti-fatigue performance difference etc., cause in the practical application, its load-bearing capacity can't satisfy the actual motion needs, makes that change slurry bearing reliability of operation is relatively poor, and it is fragile to become the slurry bearing, thereby make that the operation life of whole wind power generating set is shorter, influence the security and the reliability of whole wind power generating set operation; And, after the change slurry damage of bearings, its dismounting and installation process complexity, maintenance cost is higher.Therefore, how to realize that the test to the change of wind power generating set slurry bearing is technical issues that need to address.
The utility model content
The utility model provides a kind of change slurry bearing proving installation of wind power generating set, can effectively test becoming the slurry bearing, assurance is installed to the change slurry bearing load carrying capacity on the wind power generating set, can effectively provide to become slurry bearing and whole wind power generating set reliability of operation and stability.
The utility model provides a kind of change slurry bearing proving installation of wind power generating set, comprising: first support and second support, described first support are provided with and become the slurry bearing seat, and described change slurry bearing seat is provided with and becomes slurry bearing drive unit;
Described second support is provided with auxiliary bearing and power loads central shaft, the end that described power loads central shaft is connected with described auxiliary bearing, the other end that described power loads central shaft is connected with the axial force loading equipemtn and the power loading equipemtn that topples, the power loading direction of described axial force loading equipemtn is identical with the axial direction that described power loads central shaft, and the power loading direction of the described power of toppling loading equipemtn is vertical with the axial direction that described power loads central shaft;
Also be provided with the radial force loading equipemtn on described second support, described radial force loading equipemtn is near described auxiliary bearing, and load central shaft with described power and is connected, and the power loading direction of described radial force loading equipemtn is vertical with the axial direction of described power loading central shaft;
Described change slurry bearing and auxiliary bearing are symmetrical arranged, and have the installing space that change slurry bearing to be measured is installed between described change slurry bearing and the described auxiliary bearing.
Wherein, described axial force loading equipemtn, the power of toppling loading equipemtn and radial force loading equipemtn are hydraulic loaded equipment.
Above-mentioned proving installation also can comprise: be arranged on the temperature sensor on the described change slurry bearing to be measured.Particularly, described temperature sensor can comprise first temperature sensor and second temperature sensor, and described first temperature sensor is arranged on the outer ring of described change slurry bearing to be measured, and described second temperature sensor is arranged on the inner ring of described change slurry bearing to be measured.
In addition, above-mentioned proving installation also can comprise: be arranged on the stress test sensor of described change slurry bearing outer ring to be measured or inner ring, described stress test sensor is a foil gauge, is attached on the outer ring or inner ring of described change slurry bearing to be measured.And, also can comprise: be arranged on the acceleration transducer on the joint flange of described change to be measured slurry bearing inner race.
The change slurry bearing proving installation of the wind power generating set that the utility model provides, can be change slurry bearing by setting axial force is provided, the power loading equipemtn of radial force and upsetting moment, can become the actual operating state of slurry bearing in wind power generating set by simulation, realization is to the test of change slurry bearing to be measured, determine to become the slurry bearing and whether can satisfy actual operation needs, make and starch Bearing Installation after wind power generating set by the change of test, guarantee to become the operation needs that the load-bearing capacity of starching bearing can satisfy wind power generating set, improve and become slurry bearing and wind power generating set reliability of operation and stability, can effectively improve the life-span of wind power generating set operation.The change slurry bearing proving installation of the wind power generating set that the utility model provides is simple in structure, and it is convenient to realize, can effectively realize becoming the test of slurry bearing.
Description of drawings
Fig. 1 is the structural representation of the change slurry bearing proving installation embodiment of the utility model wind power generating set.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Wind power generating set becomes the load that the slurry bearing is subjected to and is mainly axial force F in the course of the work
z, radial force F
XyWith upsetting moment M
Xy, it is all relevant with this three classes load to become the load-bearing capacity of slurry Bearing Installation after the wind power generating set, reliability of operation etc., and therefore, the present application people has proposed a kind of change of wind power generating set and has starched the bearing proving installation, and above-mentioned axial force F can be provided
z, radial force F
XyWith upsetting moment M
XySituation when three types power, simulation become slurry bearing actual motion is tested becoming the slurry bearing, so that can satisfy the actual needs of wind power generating set through the slurry of the change after test bearing.To describe with the change slurry bearing proving installation of instantiation below the utility model wind power generating set.
Fig. 1 is the structural representation of the change slurry bearing proving installation embodiment of the utility model wind power generating set.As shown in Figure 1, the present embodiment proving installation comprises: first support 1 and second support 2, first support 1 is provided with and becomes slurry bearing seat 11, be used to install change slurry bearing 3 to be measured, become slurry bearing seat 11 and be provided with change slurry bearing drive unit 12, be used for being connected,, starch bearing 3 for change to be measured driving force is provided so that during test with change to be measured slurry bearing 3; Second support 2 is provided with auxiliary bearing 21 and power loads central shaft 22, auxiliary bearing 21 and change slurry bearing seat 11 are symmetrical arranged, and has the installing space that change slurry bearing 3 to be measured is installed between auxiliary bearing 21 and the change slurry bearing seat 11, auxiliary bearing 21 and change slurry bearing seat 11 can cooperate together, and change slurry bearing 3 to be measured is installed on this proving installation; The end that power loads central shaft 22 is connected with auxiliary bearing 21, the other end that power loads central shaft 22 is connected with the axial force loading equipemtn 23 and the power loading equipemtn 24 that topples, the power loading direction of axial force loading equipemtn 23 is identical with the axial direction that power loads central shaft 22, and being used for provides axial force at test process for change slurry bearing 3 to be measured; The power loading direction of the power of toppling loading equipemtn 24 is vertical with the axial direction that power loads central shaft 22, and being used for provides upsetting moment at test process for change slurry bearing 3 to be measured; In addition, also be provided with radial force loading equipemtn 25 on second support 2, radial force loading equipemtn 25 is near auxiliary bearing 21, and load central shaft 22 with power and be connected, and the power loading direction of radial force loading equipemtn 25 is vertical with the axial direction that power loads central shaft 22, and being used for provides radial force at test process for change slurry bearing 3 to be measured.As can be seen, the present embodiment proving installation can provide axial force, radial force and the power of toppling to change slurry bearing to be measured, becomes the practical operation situation of slurry bearing in wind power generating set thereby can simulate, and realizes the test to change slurry bearing to be measured.
Present embodiment can be tested becoming the slurry bearing, particularly, can utilize axial force loading equipemtn 23, the power of toppling loading equipemtn 24 and radial force loading equipemtn 25, required axial force F when providing test for being installed in change slurry bearing 3 to be measured on the proving installation
z, radial force F
XyWith upsetting moment M
Xy,, and can load the axial force F of suitable size according to the real work situation of design or wind power generating set work so that simulate the stressed effect of change slurry bearing 3 to be measured on wind power generating set
z, radial force F
XyWith upsetting moment M
XyWhether change slurry bearing 3 to be measured for confirmation meets the real work needs of wind power generating set, for example, can be according to the different operating mode situations of wind power generating set, the anti-fatigue performance that becomes the slurry bearing is tested, the ultimate load that becomes the slurry bearing is tested, and to becoming the starting friction moment of slurry bearing, moment of friction in the operational process is tested etc., by test, can confirm effectively whether change slurry bearing 3 to be measured meets the actual motion needs of wind power generating set, to guarantee becoming slurry Bearing Installation to be measured after wind power generating set, be applied in the time of can satisfying the operation of wind power generating set from one's body load tolerance range at self, guarantee to become slurry bearing and wind power generating set reliability of operation and stability, can effectively improve the operational efficiency of wind power generating set, improve the operation life of wind power generating set.
In the present embodiment, described axial force loading equipemtn 23, the power of toppling loading equipemtn 24 and radial force loading equipemtn 25 can be hydraulic loaded equipment, particularly, can be cylinder device, come to provide axial force F for change slurry bearing 3 to be measured by hydraulic pressure
z, radial force F
XyWith upsetting moment M
XyBecause when cylinder device provided loading force by hydraulic pressure, loading force was stable, the loading force scope that can load is big, and the loading force size adjustment is convenient, can effectively simulate the various stressing conditions in the wind power generating set actual motion, improves becoming the test effect of slurry bearing.
In the present embodiment, also can on change to be measured slurry bearing, temperature sensor be set,, whether can satisfy the real work needs with what confirm to become the slurry bearing by the temperature that detects so that the temperature in the change slurry bearing operational process to be measured is measured.Particularly, present embodiment can be provided with first temperature sensor 4, is arranged on the outer ring of change slurry bearing 3 to be measured, so that the temperature on change slurry bearing to be measured 3 outer rings in service is detected; Simultaneously, also can be provided with the second temperature sensor (not shown) at the inner ring of change slurry bearing 3 to be measured, so that the inner ring temperature to change slurry bearing 3 to be measured is measured, the temperature that obtains by above-mentioned first temperature sensor and second temperature sensor measurement, can confirm under certain ruuning situation, whether change slurry bearing 3 to be measured can satisfy actual need of work, confirms whether change slurry bearing 3 to be measured is qualified.
In the present embodiment, also can the stress test sensor be set,, confirm whether change slurry bearing 3 to be measured can satisfy the real work needs to test change slurry bearing 3 operating deflections to be measured at the outer ring or the inner ring of change slurry bearing 3 to be measured.Particularly, present embodiment stress test sensor can be outer ring or the foil gauge on the inner ring 5 that is attached to change slurry bearing 3 to be measured, change slurry bearing 3 operating stress to be measured can be measured exactly by this foil gauge 5, and the deflection of change slurry bearing 3 to be measured can be determined according to stress intensity.
In the present embodiment, also can be to be measured the joint flange of inner ring of change slurry bearing 3 be provided with the acceleration transducer (not shown) so that test becoming the operating vibration situation of slurry bearing by this acceleration transducer.
For the utility model embodiment is had a better understanding, the example that has particular application as with the utility model embodiment describes below.
Change slurry bearing proving installation by the present embodiment wind power generating set, can realize becoming the test of slurry bearing, to confirm to become the real work needs whether the slurry bearing can meet wind power generating set, particularly, at first can be between auxiliary bearing and change slurry bearing seat with change slurry Bearing Installation to be measured, afterwards can be by becoming slurry bearing drive unit, and each power loading equipemtn drives or loaded load it, simulation becomes the actual moving process of slurry bearing, utilize the change slurry bearing proving installation of present embodiment wind power generating set can test following content, and can confirm whether change slurry bearing meets the demands according to each parameter of measuring.
1, becomes the measurement of slurry bearing temperature variation in operational process.
Owing to become the slurry Bearing Installation after wind power generating set, need for a long time, operation continuously, therefore become the temperature variation of slurry bearing in operational process, stability and reliability to its actual motion have very large relation, therefore, by to temperature variation in its operational process, can determine change slurry bearing effectively and whether can satisfy the actual motion needs.Particularly, can be by being arranged on first temperature sensor and second temperature sensor on the change slurry bearing to be measured, measure to become and starch operating outer ring of bearing and inner ring temperature, thereby can utilize the temperature that measures to confirm to become the slurry bearing needs whether satisfied temperature changes.
2, become the slurry bearing vibrates situation in operational process measurement.
Because power loading central shaft can not rotate in the proving installation, auxiliary bearing, change to be measured slurry bearing rotate, therefore, operating vibration detects acceleration transducer on the joint flange of inner ring that can be by being arranged on change to be measured slurry bearing to change slurry bearing to be measured, to confirm whether become the slurry bearing satisfies actual vibration needs, particularly, vibration-testing can require to measure according to standard GB/T5314.
3, become the measurement of slurry bearing deflection when ultimate load and fatigue load.
Can starch the outer ring of bearing or the foil gauge on the inner ring by being arranged on change to be measured, detecting change slurry bearing to be measured loads and operating distortion situation in power, thereby, confirm whether change slurry bearing to be measured satisfies the actual motion needs according to the deflection of this change slurry bearing to be measured.
4, check the sealing situation that becomes the slurry bearing.
After operation a period of time, can as the sealing position whether wearing and tearing etc. be arranged at change slurry bearing to be measured, whether satisfy the operation needs with the sealing property of determining change slurry bearing to be measured by observing the sealing situation of confirming change slurry bearing to be measured.
5, become moment of friction size in slurry bearing starting friction moment, the operational process and the measurement that changes.
Because in the wind generating set pitch control process, whole change oar Design of Driving System all depends on wind load M
zAnd the moment of friction M of pitch variable bearings
f, wind load M wherein
zRelevant with the blade and the wind regime of wind power generating set, and the moment of friction M of pitch variable bearings
fDepend primarily on pitch variable bearings self, become the starting friction moment and the axial force F that is applied on the change slurry bearing of slurry bearing
z, radial force F
XyWith upsetting moment M
XyRelevant, therefore, can test the moment of friction that becomes the slurry bearing by the present embodiment proving installation.
Particularly, in pitch variable bearings startup to be measured and operational process, can determine the moment of torsion of servomotor in the change slurry bearing drive unit by detecting the electric current that becomes servomotor in the oar axial brake device, thereby can be by calculating the moment of friction of pitch variable bearings, computing formula is as follows:
Wherein, M
fBe the moment of friction of pitch variable bearings to be measured, the kNm of unit; M
mBe the torque value of servomotor, the Nm of unit; I becomes the ratio of gear that becomes the oar drive gear casing in the slurry bearing drive unit; z
2It is the number of teeth of the ring gear of pitch variable bearings to be measured; z
1Be to become in the slurry bearing drive unit to become the oar driving pinion number of teeth.
By calculate the starting friction moment can confirm change slurry bearing to be measured, in the operational process the moment of friction size and change, thereby according to each moment of friction of measuring, confirm whether change slurry bearing to be measured satisfies the real work needs.
6, the friction torque coefficient of change slurry bearing determines.
The computing formula of the moment of friction of change slurry bearing to be measured is as follows:
M
f＝M
o+a|F
z|+bF
xy+cM
xy
Wherein, M
oBe the moment of friction under the pitch variable bearings no-load condition to be measured, the kNm of unit, a, b, c are friction factor.Its concrete test process can carry out as follows:
The first step:, make the axial force F that is applied to pitch variable bearings to be measured by controlling each power loading equipemtn
z, radial force F
XyWith upsetting moment M
XyBe respectively 0, can measure M this moment
o
Second step: with 100kN is step-length, progressively increases the axial force F that is applied to pitch variable bearings to be measured
z, simultaneously, keep being applied to the radial force F of pitch variable bearings to be measured
XyAnd upsetting moment M
XyBe 0, determine and write down the moment of friction of change slurry bearing to be measured respectively, thereby can determine friction factor a;
The 3rd step: with 20kN is step-length, progressively increases the radial force F that is applied to pitch variable bearings to be measured
Xy, simultaneously, keep being applied to the axial force F of pitch variable bearings to be measured
zAnd upsetting moment M
XyBe 0, determine and write down the moment of friction of change slurry bearing to be measured respectively, thereby can determine friction factor b;
The 4th step: with 1000kNm is step-length, progressively increases the upsetting moment M that is applied to pitch variable bearings to be measured
Xy, simultaneously, keep being applied to the axial force F of pitch variable bearings to be measured
zAnd radial force F
XyBe 0, determine and write down the moment of friction of change slurry bearing to be measured respectively, thereby can determine friction factor c;
The 5th step: can carry out repeated test and verify.
In the actual test, can be according to loading different axial force F
z, radial force F
XyWith upsetting moment M
Xy, determine and write down corresponding M respectively
f, and compare with above-mentioned result of calculation, thereby whether each friction factor that checking is calculated by above-mentioned steps is accurate, and can revise.In addition, it should be noted that the axial force F of above-mentioned loading
z, radial force F
XyWith upsetting moment M
XyBe less than the ultimate load that change slurry bearing to be measured can bear.
In summary it can be seen, the change slurry bearing proving installation of present embodiment wind power generating set, can be change slurry bearing by setting axial force is provided, the power loading equipemtn of radial force and upsetting moment, can become the actual operating state of slurry bearing in wind power generating set by simulation, realization is to the test of change slurry bearing to be measured, determine to become the slurry bearing and whether can satisfy actual operation needs, make and starch Bearing Installation after wind power generating set by the change of test, guarantee to become the operation needs that the load-bearing capacity of starching bearing can satisfy wind power generating set, improve and become slurry bearing and wind power generating set reliability of operation and stability, can effectively improve the life-span of wind power generating set operation.The change slurry bearing proving installation of present embodiment wind power generating set is simple in structure, and it is convenient to realize, can effectively realize becoming the test of slurry bearing.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. the change of wind power generating set slurry bearing proving installation is characterized in that, comprising: first support and second support, described first support are provided with and become the slurry bearing seat, and described change slurry bearing seat is provided with and becomes slurry bearing drive unit;
Described second support is provided with auxiliary bearing and power loads central shaft, the end that described power loads central shaft is connected with described auxiliary bearing, the other end that described power loads central shaft is connected with the axial force loading equipemtn and the power loading equipemtn that topples, the power loading direction of described axial force loading equipemtn is identical with the axial direction that described power loads central shaft, and the power loading direction of the described power of toppling loading equipemtn is vertical with the axial direction that described power loads central shaft;
Also be provided with the radial force loading equipemtn on described second support, described radial force loading equipemtn is near described auxiliary bearing, and load central shaft with described power and is connected, and the power loading direction of described radial force loading equipemtn is vertical with the axial direction of described power loading central shaft;
Described change slurry bearing and auxiliary bearing are symmetrical arranged, and have the installing space that change slurry bearing to be measured is installed between described change slurry bearing and the described auxiliary bearing.
2. the change of wind power generating set according to claim 1 slurry bearing proving installation is characterized in that described axial force loading equipemtn, the power of toppling loading equipemtn and radial force loading equipemtn are hydraulic loaded equipment.
3. the change of wind power generating set according to claim 1 and 2 slurry bearing proving installation is characterized in that, also comprises:
Be arranged on the temperature sensor on the described change slurry bearing to be measured.
4. the bearing proving installation is starched in the change of wind power generating set according to claim 3, it is characterized in that, described temperature sensor comprises first temperature sensor and second temperature sensor, described first temperature sensor is arranged on the outer ring of described change slurry bearing to be measured, and described second temperature sensor is arranged on the inner ring of described change slurry bearing to be measured.
5. the change of wind power generating set according to claim 1 and 2 slurry bearing proving installation is characterized in that, also comprises:
Be arranged on the stress test sensor of described change slurry bearing outer ring to be measured or inner ring, described stress test sensor is a foil gauge, is attached on the outer ring or inner ring of described change slurry bearing to be measured.
6. the change of wind power generating set according to claim 1 and 2 slurry bearing proving installation is characterized in that, also comprises:
Be arranged on the acceleration transducer on the joint flange of described change to be measured slurry bearing inner race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205073133U CN201844920U (en) | 2010-08-26 | 2010-08-26 | Test device for variable pitch bearing of wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205073133U CN201844920U (en) | 2010-08-26 | 2010-08-26 | Test device for variable pitch bearing of wind generating set |
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| CN201844920U true CN201844920U (en) | 2011-05-25 |
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| CN2010205073133U Expired - Lifetime CN201844920U (en) | 2010-08-26 | 2010-08-26 | Test device for variable pitch bearing of wind generating set |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990647A (en) * | 2015-07-04 | 2015-10-21 | 河南科技大学 | Rotary table bearing rolling element load distribution test system |
| CN108731957A (en) * | 2018-03-27 | 2018-11-02 | 太原重工新能源装备有限公司 | Pitch-controlled system experimental rig and scheme |
| CN108896310A (en) * | 2018-07-25 | 2018-11-27 | 北京卫星环境工程研究所 | The bearing multi-stress test system of analog tilting moment |
| CN110030164A (en) * | 2018-01-11 | 2019-07-19 | 西门子歌美飒可再生能源公司 | Monitoring a blade bearing |
| CN114894473A (en) * | 2022-03-29 | 2022-08-12 | 洛阳轴承研究所有限公司 | Testing device for main shaft system of wind power generation equipment |
| CN115508091A (en) * | 2022-11-07 | 2022-12-23 | 烟台天成机械有限公司 | Wind generating set main shaft, driftage, change oar bearing capability test platform |
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2010
- 2010-08-26 CN CN2010205073133U patent/CN201844920U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990647A (en) * | 2015-07-04 | 2015-10-21 | 河南科技大学 | Rotary table bearing rolling element load distribution test system |
| CN110030164A (en) * | 2018-01-11 | 2019-07-19 | 西门子歌美飒可再生能源公司 | Monitoring a blade bearing |
| US10927819B2 (en) | 2018-01-11 | 2021-02-23 | Siemens Gamesa Renewable Energy A/S | Monitoring a blade bearing |
| CN108731957A (en) * | 2018-03-27 | 2018-11-02 | 太原重工新能源装备有限公司 | Pitch-controlled system experimental rig and scheme |
| CN108896310A (en) * | 2018-07-25 | 2018-11-27 | 北京卫星环境工程研究所 | The bearing multi-stress test system of analog tilting moment |
| CN108896310B (en) * | 2018-07-25 | 2020-05-08 | 北京卫星环境工程研究所 | Bearing multi-stress test system capable of simulating overturning moment |
| CN114894473A (en) * | 2022-03-29 | 2022-08-12 | 洛阳轴承研究所有限公司 | Testing device for main shaft system of wind power generation equipment |
| CN114894473B (en) * | 2022-03-29 | 2023-09-22 | 洛阳轴承研究所有限公司 | Testing device for main shaft system of wind power generation equipment |
| CN115508091A (en) * | 2022-11-07 | 2022-12-23 | 烟台天成机械有限公司 | Wind generating set main shaft, driftage, change oar bearing capability test platform |
| CN115508091B (en) * | 2022-11-07 | 2023-03-10 | 烟台天成机械有限公司 | Wind generating set main shaft, driftage, change oar bearing capability test platform |
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Granted publication date: 20110525 |
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