CN109578221A - A kind of testing stand of wind generator unit wheel hub and pitch-controlled system load test - Google Patents
A kind of testing stand of wind generator unit wheel hub and pitch-controlled system load test Download PDFInfo
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- CN109578221A CN109578221A CN201811546623.3A CN201811546623A CN109578221A CN 109578221 A CN109578221 A CN 109578221A CN 201811546623 A CN201811546623 A CN 201811546623A CN 109578221 A CN109578221 A CN 109578221A
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/83—Testing, e.g. methods, components or tools therefor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the testing stands of a kind of wind generator unit wheel hub and pitch-controlled system load test, including hub support tooling, main load tooling, torque loading unit and axial force to load tooling；Wheel hub is supported fixation by hub support tooling, and also constraint is fixed by hub support tooling in the non-test pitch variable bearings on wheel hub；The flange of pitch variable bearings to be tested is needed to be connected on main load tooling one end and wheel hub, the other end, which extends outward and loads tooling with axial force by transition components, to be connect, and the end is also connected with hydraulic cylinder, the installation position for installing fixed gravitational load module is reserved in main load tooling, torque loading unit is mounted in main load tooling, applies torsion load to main load tooling.The present invention can carry out static state and the dynamic load of torque, moment of flexure, radial shear, axial force to wheel hub and pitch-controlled system, and the construction cost of wheel hub and pitch-controlled system testing stand is reduced while meeting loading performance and requiring.
Description
Technical field
The present invention relates to the technical fields of wind generator unit wheel hub and pitch-controlled system load test, refer in particular to a kind of wind
The testing stand of power generator group wheel hub and pitch-controlled system load test.
Background technique
For wind power generating set, with the development of technology, length of blade and load are increasing, about verifying and survey
The method and apparatus for trying wind generator unit wheel hub and pitch-controlled system is more and more important.
Existing pitch variable bearings testing stand is only used for test pitch variable bearings, can not adequately be surveyed to entire pitch-controlled system
Test card.And since pitch variable bearings testing stand rigidity is larger, it can not simulate when being mounted on wheel hub, pitch variable bearings are under loads just
True deflection.
Therefore, in order to overcome the shortcomings of pitch variable bearings testing stand, and load test further carried out to wheel hub, wheel hub with
The integrated testing stand of pitch-controlled system be one future development trend.But rare wheel hub now and pitch-controlled system testing stand,
Though enough load can be generated to pitch-controlled system and wheel hub, since its load is from hydraulic load, to hydraulic device requirement
Height causes testing stand construction cost high.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology with it is insufficient, propose a kind of wind generator unit wheel hub and
The testing stand of pitch-controlled system load test can carry out four-degree-of-freedom load test, four-degree-of-freedom to wheel hub and pitch-controlled system
Static state and dynamic load including torque, moment of flexure, radial shear, axial force, meet the survey of wheel hub Yu pitch-controlled system testing stand
Examination requires, and shares most of required load due to innovatively using gravitational load, for hydraulic loaded Capability Requirement
It declines to a great extent, significantly reduces the cost of hydraulic device, so that wheel can be effectively reduced while meeting loading performance and requiring
The construction cost of hub and pitch-controlled system testing stand.
To achieve the above object, technical solution provided by the present invention are as follows: a kind of wind generator unit wheel hub and variable pitch system
Unite load test testing stand, including hub support tooling, for wheel hub and pitch-controlled system static state and dynamic add
The main load tooling of load applies for applying the torque loading unit of torsion load to main load tooling and being used for main load tooling
The axial force of axial force loads tooling；The wheel hub is supported fixation by hub support tooling, and the non-survey on the wheel hub
Also constraint is fixed by hub support tooling in examination pitch variable bearings；It is needed on one end of the main load tooling and wheel hub to be tested
The flange of pitch variable bearings is connected, and the other end, which extends outward and loads tooling with axial force by transition components, to be connected, institute
Stating transition components can ensure that the rotation of main load tooling when variable pitch will not load tooling to axial force and have an impact, and the master adds
The installation position being reserved in tooling for installing fixed gravitational load module is carried, by being removably installed upper gravitational load module
Gravitational load is generated, and the main load tooling loads the end that tooling is connected with axial force and be connected with hydraulic cylinder, by institute
It states and is capable of providing additional hydraulic load while hydraulic cylinder is supported, by gravitational load and hydraulic load compound action,
Static and dynamic radial shear can be generated to wheel hub and pitch-controlled system and moment of flexure loads；The torque loading unit is mounted on
In main load tooling, torsion load can be applied to main load tooling, and then act on wheel hub and pitch-controlled system, while also producing
Raw a part of radial shear and bending load.
Further, the hub support tooling is cylindrical support structure, outside have reinforcing rib and for on wheel hub
The fastener of constraint is fixed in non-test pitch variable bearings.
Further, the main load tooling is long tubular structure, by support framework and surrounds the barrel group of the support framework
At the barrel is stitched together by multiple points of valves, and playing prevents gravitational load module from falling in main load tooling motion process
The effect fallen, the gravitational load module are mounted on support framework.
Further, the torque loading unit has multiple and is spaced apart along the length direction of main load tooling, each
Torque loading unit includes disk, cable, gravitational torque payload module and torque hydraulic cylinder, wherein the disk is fixed
It in main load tooling, and is parallel on wheel hub and needs pitch variable bearings to be tested, one end of the cable is fixed on the top of disk
Point position, the other end are connected with gravitational torque payload module vertically downward after bypassing disk quarter turn, the gravitational torque
Payload module is fixed on torque hydraulic cylinder, is supported by torque hydraulic cylinder, is able to drive weight by the torque hydraulic cylinder
Power torsion load module oscilaltion is applied to main load by changing the hydraulic coupling that the torque hydraulic cylinder applies to change
Torsion load in tooling.
Further, axial force load tooling include support foot rest, lever mechanism, axial force gravitational load module and
Axial force hydraulic cylinder, wherein lever that the lever mechanism is mutually symmetrical parallel by two and connect the first of two levers
One end of pivot and the second pivot composition, two levers is pivotally connected and is movably articulated on support foot rest, energy by first
Enough to swing around support foot rest, first pivot is connected with transition components, and the other end of two levers passes through the second pivot
It connects, axial force gravitational load module is lifted on second pivot, and be connected with axial force hydraulic cylinder, by the axial direction
Power hydraulic cylinder provides hydraulic load, the load that the axial force gravitational load module and axial force hydraulic cylinder generate for lever mechanism
Load, is amplified by lever mechanism and is loaded based on converting the load of tooling axial direction by lotus, to realize to wheel hub and change
The static state and dynamically load of oar system axial force.
Further, the transition components are made of the rotary part combined and nonrotational position, wherein described turn
Dynamic position is connected with main load tooling, and the nonrotational position composition is connected with axial force load tooling.
Compared with prior art, the present invention have the following advantages that with the utility model has the advantages that
1, construction cost is low: conventional boss and pitch-controlled system testing stand load are both from hydraulic load, it is desirable that big load
When, height is required to hydraulic system, so as to cause with high costs.Testing stand Main Load of the present invention is hydraulic from gravitational load
Load only serves auxiliary and dynamically load, to reduce the requirement of hydraulic system.Gravitational load module can be woven bag and beat
The low cost weight such as sand, stone of packet, disposes corresponding gravitational load module in main load tooling further according to load requirements,
To generate torque, moment of flexure, radial shear, axial force of demand etc..By gravitational load, hydraulic system requirement is reduced, thus
Reduce construction cost.
2, structural principle is simple: only by force analysis and need to paste stress section, wheel hub and pitch-controlled system institute can be obtained
Size loaded.Hydraulic device negligible amounts, performance requirement is lower, and test platform structure is simplified.
3, easy to operate: by increasing or decreasing the gravitational load being placed on everywhere, i.e., changeable wheel hub and pitch-controlled system institute
The load being subject to.
Detailed description of the invention
Fig. 1 is the axonometric drawing of testing stand of the present invention.
Fig. 2 is the main view of testing stand of the present invention.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Referring to figure 1 and figure 2, wind generator unit wheel hub provided by the present embodiment and pitch-controlled system load test are used
Testing stand, including hub support tooling 21, for the static state and the main load that is loaded of dynamic to wheel hub and pitch-controlled system
Tooling, the torque loading unit for applying torsion load to main load tooling and the axis for applying axial force for main load tooling
Tooling is loaded to power.Hub support tooling 21 is fixed on basic plane 1, the full payload being transmitted to for sharing carrying, can
It to adjust plane inclination, can be made of steel, cast iron or concrete material, there is very high bearing capacity, plane type can
Including but not limited to steel plate, cast iron platform, concrete etc., the mode of being connected and fixed include but is not limited to be bolted, weld company
It connects, rivet；Wheel hub 5 is supported fixation by hub support tooling 21, and the non-test pitch variable bearings 4 on wheel hub 5 are also by taking turns
Constraint is fixed in hub supporting tool 21.6 phase of flange of pitch variable bearings to be tested is needed on one end of main load tooling and wheel hub 5
Connection (connection type under simulation true environment), the other end extends outward and loads work by transition components 12 and axial force
Pretend connection, transition components 12 are made of the rotary part combined and nonrotational position, rotary part and main load work
Pretend connection, nonrotational position composition loads tooling with axial force and is connected, master when may insure variable pitch by transition components 12
The rotation for loading tooling will not load tooling to axial force and have an impact, and be reserved in main load tooling for installing fixed gravity
The installation position of payload module 8 can install required gravitational load module 8 additional, by being removably installed upper gravity according to demand
Payload module 8 generates gravitational load, and main load tooling loads the end that tooling is connected with axial force and be connected with hydraulic cylinder
17, additional hydraulic load can be provided while being supported by hydraulic cylinder 17, combined by gravitational load and hydraulic load
Effect can generate static and dynamic radial shear to wheel hub and pitch-controlled system and moment of flexure loads；The installation of torque loading unit
In main load tooling, torsion load can be applied to main load tooling, and then act on wheel hub and pitch-controlled system, while
Generate a part of radial shear and bending load.
Hub support tooling 21 be cylindrical support structure, outside have reinforcing rib 3 etc. structural strengthenings and be used for wheel hub 5
Non-test pitch variable bearings 4 fastener 2 of constraint is fixed (shares a part of load, prevent testing stand from unexpected thing occurs
Therefore).
Main load tooling is long tubular structure, is made of support framework 7 and the barrel 11 for surrounding the support framework 7, barrel
11 are stitched together by multiple points of valves, play the role of preventing gravitational load module 8 from falling in main load tooling motion process,
Gravitational load module 8 is mounted on support framework 7, because generating radial shear to pitch-controlled system and wheel hub by gravity
And bending load.17 pairs of hydraulic cylinder main load toolings generate the load and dynamic load of auxiliary, final to realize to wheel hub and variable pitch
The static state and dynamically load of system.
Torque loading unit has several and is spaced apart along the length direction of main load tooling, and each torque load is single
Member includes disk 9, cable 20, gravitational torque payload module 18 and torque hydraulic cylinder 19, wherein disk 9 is fixed on main add
It carries in tooling, and is parallel on wheel hub 5 and needs pitch variable bearings to be tested, one end of cable 20 is fixed on the vertex position of disk 9
(specially appended drawing reference 10 in figure), the other end bypass disk quarter turn after vertically downward with gravitational torque payload module 18
It is connected, gravitational torque payload module 18 is fixed on torque hydraulic cylinder 19, is supported by torque hydraulic cylinder 19, is passed through torque
Hydraulic cylinder 19 is able to drive 18 oscilaltion of gravitational torque payload module, i.e., the hydraulic coupling applied by changing torque hydraulic cylinder 19
Change the torsion load being applied in main load tooling, the torsion load of generation by load tooling be applied to pitch-controlled system with
On wheel hub, while also generating a part of radial shear and bending load.
It includes support foot rest 16, lever mechanism, axial force gravitational load module 14 and axial force that axial force, which loads tooling,
Hydraulic cylinder 15, wherein lever mechanism is by two levers for being mutually symmetrical parallel 13 and connects the first pivot of two levers 13
22 and second pivot 23 form, one end of two levers 13 is connected by the first pivot 22 and is movably articulated in support foot rest 16
On, can be swung around support foot rest 16, the first pivot 22 is connect with the non-rotating part of transition components 12, two levers it is another
End is connected by the second pivot 23, and axial force gravitational load module 14 is lifted on the second pivot 12, and hydraulic with axial force
Cylinder 15 is connected, and provides hydraulic load, axial force gravitational load module 14 and axial direction by axial force hydraulic cylinder 15 for lever mechanism
The load that power hydraulic cylinder 15 generates, load amplify by lever mechanism and based on converting load tooling axial direction load,
To realize static state and dynamically load to wheel hub and pitch-controlled system axial force.
If the space of main load tooling storage gravitational load is appeared to be rotary table, it is assumed that the bottom radius surface of rotary table is 1.5
Rice, upper bottom surface radius are 0.75 meter, and two 10 meters of bottom surface distances, according to rotary table cubature formula, volume is about 41 cubic metres.Take stone
Bulk density be 1.48 tons every cubic metre, do not consider main load tooling itself, only consider it is main load tooling in placement gravity
When payload module 8, weight is about 61 tons.Therefore, the shearing load that main load tooling generates wheel hub and pitch-controlled system can be obtained
About 598kN, the bending load of generation are about 797kNm.Assuming that the radius of torque loading unit is 1.5 meters, gravitational torque load
The total weight of module 18 is 8 tons, then generating torsion load is about 118kNm.Assuming that the arm of force ratio of lever 13 is 1:4, if axial
The weight of power gravitational load module 14 is 10 tons, then the axial force load generated is about 392kN.On the basis of each gravitational load
On, it is further added by hydraulic load, the test request of static loading and dynamically load can be met.
Embodiment described above is only the preferred embodiments of the invention, and but not intended to limit the scope of the present invention, therefore
All shapes according to the present invention change made by principle, should all be included within the scope of protection of the present invention.
Claims (6)
1. the testing stand of a kind of wind generator unit wheel hub and pitch-controlled system load test, which is characterized in that including wheel hub branch
Support tooling, for wheel hub and pitch-controlled system static state and dynamic loaded main load tooling, for main load tooling
The axial force for applying the torque loading unit of torsion load and applying axial force for main load tooling loads tooling；The wheel hub
Fixation is supported by hub support tooling, and the non-test pitch variable bearings on the wheel hub are also consolidated by hub support tooling
Conclude a contract or treaty beam；The flange of pitch variable bearings to be tested is needed to be connected on one end of the main load tooling and wheel hub, the other end is past
Outer extension is simultaneously connected by transition components with axial force load tooling, and the transition components can ensure main load work when variable pitch
The rotation of dress will not load tooling to axial force and have an impact, and be reserved in the main load tooling and carry for installing fixed gravity
The installation position of lotus module generates gravitational load, and the main load tooling by being removably installed upper gravitational load module
The end being connected with axial force load tooling is connected with hydraulic cylinder, is capable of providing volume while being supported by the hydraulic cylinder
Outer hydraulic load can generate wheel hub and pitch-controlled system static and dynamic by gravitational load and hydraulic load compound action
The radial shear and moment of flexure of state load；The torque loading unit is mounted in main load tooling, can be applied to main load tooling
Add torsion load, and then act on wheel hub and pitch-controlled system, while also generating a part of radial shear and bending load.
2. the testing stand of a kind of wind generator unit wheel hub and pitch-controlled system load test according to claim 1,
Be characterized in that: the hub support tooling is cylindrical support structure, outside have reinforcing rib and for non-test on wheel hub
The fastener of constraint is fixed in pitch variable bearings.
3. the testing stand of a kind of wind generator unit wheel hub and pitch-controlled system load test according to claim 1,
Be characterized in that: the main load tooling is long tubular structure, is made of support framework and the barrel for surrounding the support framework, described
Barrel is stitched together by multiple points of valves, plays the work for preventing gravitational load module from falling in main load tooling motion process
With the gravitational load module is mounted on support framework.
4. the testing stand of a kind of wind generator unit wheel hub and pitch-controlled system load test according to claim 1,
Be characterized in that: the torque loading unit has multiple and is spaced apart along the length direction of main load tooling, and each torque adds
Carrier unit includes disk, cable, gravitational torque payload module and torque hydraulic cylinder, wherein the disk is fixed on main add
It carrying in tooling, and is parallel on wheel hub and needs pitch variable bearings to be tested, one end of the cable is fixed on the vertex position of disk,
Its other end is connected with gravitational torque payload module vertically downward after bypassing disk quarter turn, the gravitational torque load mould
Block is fixed on torque hydraulic cylinder, is supported by torque hydraulic cylinder, is able to drive gravitational torque by the torque hydraulic cylinder
Payload module oscilaltion is applied in main load tooling by changing the hydraulic coupling that the torque hydraulic cylinder applies to change
Torsion load.
5. the testing stand of a kind of wind generator unit wheel hub and pitch-controlled system load test according to claim 1,
Be characterized in that: the axial force load tooling includes support foot rest, lever mechanism, axial force gravitational load module and axial force
Hydraulic cylinder, wherein lever that the lever mechanism is mutually symmetrical parallel by two and connect two levers the first pivot and
One end of second pivot composition, two levers is pivotally connected by first and is movably articulated on support foot rest, can be around branch
Kickstand is swung, and first pivot is connected with transition components, and the other end of two levers is pivotally connected by second, institute
It states and is lifted with axial force gravitational load module on the second pivot, and be connected with axial force hydraulic cylinder, it is hydraulic by the axial force
Cylinder provides hydraulic load for lever mechanism, and the load that the axial force gravitational load module and axial force hydraulic cylinder generate passes through
Load is amplified and loads the load of tooling axial direction based on converting by lever mechanism, to realize to wheel hub and pitch-controlled system axis
To the static state and dynamically load of power.
6. the testing stand of a kind of wind generator unit wheel hub and pitch-controlled system load test according to claim 1 or 5,
It is characterized by: the transition components are made of the rotary part combined and nonrotational position, wherein the rotation section
Position is connected with main load tooling, and the nonrotational position composition is connected with axial force load tooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546623.3A CN109578221B (en) | 2018-12-18 | 2018-12-18 | Test bed for loading test of hub and pitch system of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546623.3A CN109578221B (en) | 2018-12-18 | 2018-12-18 | Test bed for loading test of hub and pitch system of wind generating set |
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| Publication Number | Publication Date |
|---|---|
| CN109578221A true CN109578221A (en) | 2019-04-05 |
| CN109578221B CN109578221B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811546623.3A Active CN109578221B (en) | 2018-12-18 | 2018-12-18 | Test bed for loading test of hub and pitch system of wind generating set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398387A (en) * | 2019-07-11 | 2019-11-01 | 明阳智慧能源集团股份公司 | A kind of wind generating set yaw and pitch-controlled system six degree of freedom bracket loading test platform |
| CN116358867A (en) * | 2023-05-09 | 2023-06-30 | 南京工大数控科技有限公司 | Ultra-large heavy-duty bearing test bed |
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| CN201373783Y (en) * | 2009-04-01 | 2009-12-30 | 南车株洲电力机车研究所有限公司 | Testing device of variable paddle bearing friction torque of wind driven generator |
| CN202075127U (en) * | 2011-05-27 | 2011-12-14 | 华锐风电科技(集团)股份有限公司 | Variable pitch bearing test board for high-power wind driven generator set |
| CN104502110A (en) * | 2015-01-23 | 2015-04-08 | 太原重工股份有限公司 | Variable-pitch motor loading device |
| CN209398544U (en) * | 2018-12-18 | 2019-09-17 | 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 |
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2018
- 2018-12-18 CN CN201811546623.3A patent/CN109578221B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373783Y (en) * | 2009-04-01 | 2009-12-30 | 南车株洲电力机车研究所有限公司 | Testing device of variable paddle bearing friction torque of wind driven generator |
| CN202075127U (en) * | 2011-05-27 | 2011-12-14 | 华锐风电科技(集团)股份有限公司 | Variable pitch bearing test board for high-power wind driven generator set |
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| CN209398544U (en) * | 2018-12-18 | 2019-09-17 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398387A (en) * | 2019-07-11 | 2019-11-01 | 明阳智慧能源集团股份公司 | A kind of wind generating set yaw and pitch-controlled system six degree of freedom bracket loading test platform |
| CN110398387B (en) * | 2019-07-11 | 2024-03-26 | 明阳智慧能源集团股份公司 | Six-degree-of-freedom loading test bed for yaw and pitch system of wind generating set |
| CN116358867A (en) * | 2023-05-09 | 2023-06-30 | 南京工大数控科技有限公司 | Ultra-large heavy-duty bearing test bed |
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| Publication number | Publication date |
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| CN109578221B (en) | 2024-01-26 |
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