CN104089768A - Hub testing device for wind generating set - Google Patents
Hub testing device for wind generating set Download PDFInfo
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- CN104089768A CN104089768A CN201410357689.3A CN201410357689A CN104089768A CN 104089768 A CN104089768 A CN 104089768A CN 201410357689 A CN201410357689 A CN 201410357689A CN 104089768 A CN104089768 A CN 104089768A
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- wheel hub
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Abstract
The invention provides a hub testing device for a wind generating set. The hub testing device comprises a foundation slab and three connection flange plates. A hub supporting base is arranged on the foundation slab, a tested hub is arranged on the hub supporting base, three blade ports of the tested hub are plugged by and connected with the three connection flange plates respectively, and three moment loading mechanisms opposite to the three connection flange plates are arranged on the periphery of the hub supporting base. Each moment loading mechanism comprises a square loading base which is closely attached to the corresponding connection flange plate, and each loading base is connected with an actuator which can extrude the corresponding loading base in the side direction, the axial direction and the vertical direction respectively. The hub testing device has the advantages that when the hub testing device is used for a simulation test, quality assurance can be provided for production and detection of the hub, installation of the hub is conducted after it is verified that the hub meets design requirements, and therefore reliability of the wind generating set can be improved to a great degree and maintenance cost can be reduced. Moreover, a product design process can be perfected and guided continuously, and product reliability is improved.
Description
Technical field
The invention belongs to technical field of wind power generation, particularly a kind of wind generator unit wheel hub test unit.
Background technology
In wind power generating set critical component, wheel hub is stressing conditions one of complexity and the highest critical component of reliability requirement the most wherein, because wind power generating set is arranged on high mountain conventionally, wilderness, seabeach, the places, air port such as island, environment very severe of living in, the load such as moment of torsion that wheel hub produces wind wheel pass to main shaft, be subject to the combined action of cyclic load and randomness load, stand the load impacting of strong gusts of wind throughout the year, heat, the impact of severe cold and extreme difference in temperature, during 20 years operation life, wheel hub may break down, once break down, heavy unit collapses, even cause casualties, gently need to disassemble to repair, yet it will be very difficult repairing, often need to adopt special large-scale hoisting machinery that wind wheel integral body is fallen down, wheel hub could be disassembled afterwards, spend huge.Therefore be necessary to develop the mechanical property that wheel hub is examined in the wheel hub rig for testing of a kind of ground, verify after it meets design requirement and install again, thereby improve largely unit reliability and reduce maintenance cost.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of wind generator unit wheel hub test unit that can improve largely unit reliability and reduce maintenance cost.
The present invention is achieved by the following measures:
A kind of wind generator unit wheel hub test unit of the present invention, comprises sole plate and three companies
Acting flange dish, on described sole plate, be provided with wheel hub supporting seat, on described wheel hub supporting seat, tested wheel hub is installed, the shutoff be connected to three blade interfaces places of tested wheel hub respectively of three mounting flanges, described wheel hub supporting seat be around provided with three groups respectively with three moment load maintainers that mounting flange is relative, every group of moment load maintainer comprises the square loading seat of being close to mounting flange, described load seat be connected with can be respectively side direction, axially and vertical direction extruding load the actuator of seat.
Above-mentioned every group of moment load maintainer also comprises axial riser and side direction riser, described axial riser and mounting flange over against and bottom be fixed on sole plate, load seat and be positioned between mounting flange and axial riser, load seat and axially between riser, be connected with axial actuator; Described side direction riser is positioned at mounting flange left forward side and bottom is fixed on sole plate, side direction riser relative with the left surface that loads seat and between be provided with side direction actuator; Load between seat bottom surface and sole plate and be provided with vertical actuator.
Above-mentioned axial actuator, side direction actuator and vertical actuator include the first back-up block, the second back-up block and the 3rd back-up block paralleling and the cylinder body that runs through the first back-up block, the second back-up block and the 3rd back-up block, in described cylinder body, be provided with loading axle, loading axle passes the 3rd back-up block and end is provided with fixed block, on described fixed block and the first back-up block, be provided with bolt hole, valve pipeline connector on described the second back-up block.
Above-mentioned axial actuator, side direction actuator and vertical actuator are all connected with the oil pipe of provided with electromagnetic valve, and described solenoid valve is connected with controller.
The invention has the beneficial effects as follows: by using this wheel hub test unit to carry out simulation test, can provide quality assurance for wheel hub, production, detection, can after checking wheel hub meets design requirement, install again, thereby improve largely unit reliability and reduce maintenance cost.Can also constantly improve and the design process of guide product, improve product reliability.
Accompanying drawing explanation
Fig. 1 is the stereographic map of wind power hub test unit of the present invention;
Fig. 2 is the vertical view of wind power hub test unit of the present invention;
Fig. 3 is the stereographic map of side hydraulic actuator in wind power hub test unit of the present invention;
In figure: 1 sole plate, 2 wheel hub supporting seats, 3 tested wheel hubs, 4 mounting flanges, 5 load seat, 6 side direction actuator, 7 vertical actuator, 8 axial actuator, 9 side direction risers, 10 firm bankings, 11 axial risers, 12 bolts hole, 13 first back-up blocks, 14 coupling shafts, 15 valve pipeline connectors, 16 second back-up blocks, 17 the 3rd back-up blocks, 18 load axle, 19 fixed blocks.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done to further detailed description:
As shown in Figure 1, 2, a kind of wind generator unit wheel hub test unit of the present invention, comprises sole plate, wheel hub supporting seat 2, three mounting flanges 4 and three groups of moment load maintainers.Wheel hub supporting seat 2 arranges on sole plate, and sole plate adopts copper material.Tested wheel hub 3 is arranged on wheel hub supporting seat 2, the shutoff be connected to three blade interfaces places of tested wheel hub 3 respectively of three mounting flanges 4.Three groups of moment load maintainers are arranged on around wheel hub supporting seat 2, and relative with three mounting flanges 4 respectively, by moment load maintainer, to 3 three blade interfaces place loading moments of tested wheel hub, have side direction, axial, vertical three-dimensional value-added tax function.Can calculate loading moment according to the eccentric distance of loading place, so that the actual moment of flexure situation being subject to of simulation wheel hub simultaneously.While testing, the result of calculating according to finite element theory is determined quantity and the position of pasting foil gauge on tested wheel hub 3, through converting, obtains the proof stress value of tested wheel hub 3, thereby assesses the strength conditions of tested wheel hub 3.When carrying out torture test, according to the number of times of torture test, stage by stage tested wheel hub 3 is detected a flaw, thereby assess the fatigue damage situation of tested wheel hub 3.In addition, the present invention designs for hardware and software platform, and follow-up this test unit can adjustment, carries out the work such as wheel hub modal test, pitch variable bearings test, variable propeller gearbox test.
In order to realize moment, load, every group of moment load maintainer comprises square loading seat 5 and axial riser 11 and the side direction riser 9 of being close to mounting flange 4, it is square loading seat 5, an one side is pressed on mounting flange 4, axially riser 11 and mounting flange 4 over against and bottom be fixed on sole plate, load seat 5 at mounting flange 4 and axially between riser 11, load seat 5 and axially between riser 11, be connected with axial actuator 8, axially actuator 8 can apply axial moment to loading seat 5 and mounting flange 4.Side direction riser 9 is positioned at mounting flange 4 left forward sides and bottom is fixed on sole plate, side direction riser 9 relative with the left surface that loads seat 5 and between be provided with side direction actuator 6, side direction actuator 6 can to load 5 and mounting flange 4 apply the moment of side direction.Load between seat 5 bottom surfaces and sole plate and be provided with vertical actuator 7, vertical actuator 7 bottoms are fixed on sole plate 1 by firm banking 10.Vertical actuator 7 can apply vertical moment with mounting flange 4 to loading seat 5.By hydraulic oil source, to actuator, provide power, for realizing loading.Can simulate wheel hub actual loading situation, realize side direction, axial, vertical loading simultaneously, and magnitude of load be controlled.By loading in side direction, axial, vertical three directions, guarantee the plane of fixed block 19 and the loaded planar good contact of loading seat 5 of each actuator, realized the simulation of the on-the-spot stand under load situation of wheel hub, simplified design.
As shown in Figure 3, axially actuator 8, side direction actuator 6 and vertical actuator 7 include the first back-up block 13, the second back-up block 16 and the 3rd back-up block 17 paralleling and the cylinder body that runs through the first back-up block 13, the second back-up block 16 and the 3rd back-up block 17, in cylinder body, be provided with and load axle 18, loading axle 18 passes the 3rd back-up block 17 and end is provided with fixed block 19, on fixed block 19 and the first back-up block 13, be provided with valve pipeline connector 15 on bolt hole 12, the second back-up blocks 16.Axially actuator 8, side direction actuator 6 and vertical actuator 7 are all connected with the oil pipe of provided with electromagnetic valve, and solenoid valve is connected with controller.
Axially actuator 8, side direction actuator 6 and vertical actuator 7 are all connected with the oil pipe of provided with electromagnetic valve, and solenoid valve is connected with controller.Requirement according to test to time, beat, break-in, variable load, controller is controlled these actuator at any time, thereby meets testing requirements.
The above is only the preferred implementation of this patent; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the art of this patent principle; can also make some improvement and replacement, these improvement and replacement also should be considered as the protection domain of this patent.
Claims (4)
1. a wind generator unit wheel hub test unit, is characterized in that: comprise sole plate and three companies
Acting flange dish, on described sole plate, be provided with wheel hub supporting seat, on described wheel hub supporting seat, tested wheel hub is installed, the shutoff be connected to three blade interfaces places of tested wheel hub respectively of three mounting flanges, described wheel hub supporting seat be around provided with three groups respectively with three moment load maintainers that mounting flange is relative, every group of moment load maintainer comprises the square loading seat of being close to mounting flange, described load seat be connected with can be respectively side direction, axially and vertical direction extruding load the actuator of seat.
2. wind generator unit wheel hub test unit according to claim 1, it is characterized in that: every group of moment load maintainer also comprises axial riser and side direction riser, described axial riser and mounting flange over against and bottom be fixed on sole plate, load seat and be positioned between mounting flange and axial riser, load seat and axially between riser, be connected with axial actuator; Described side direction riser is positioned at mounting flange left forward side and bottom is fixed on sole plate, side direction riser relative with the left surface that loads seat and between be provided with side direction actuator; Load between seat bottom surface and sole plate and be provided with vertical actuator.
3. wind generator unit wheel hub test unit according to claim 2, it is characterized in that: described axial actuator, side direction actuator and vertical actuator include the first back-up block, the second back-up block and the 3rd back-up block paralleling and the cylinder body that runs through the first back-up block, the second back-up block and the 3rd back-up block, in described cylinder body, be provided with loading axle, loading axle passes the 3rd back-up block and end is provided with fixed block, on described fixed block and the first back-up block, be provided with bolt hole, valve pipeline connector on described the second back-up block.
4. wind generator unit wheel hub test unit according to claim 2, is characterized in that: described axial actuator, side direction actuator and vertical actuator are all connected with the oil pipe of provided with electromagnetic valve, and described solenoid valve is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357689.3A CN104089768A (en) | 2014-07-25 | 2014-07-25 | Hub testing device for wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357689.3A CN104089768A (en) | 2014-07-25 | 2014-07-25 | Hub testing device for wind generating set |
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| Publication Number | Publication Date |
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| CN104089768A true CN104089768A (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410357689.3A Pending CN104089768A (en) | 2014-07-25 | 2014-07-25 | Hub testing device for wind generating set |
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| CN (1) | CN104089768A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445012A (en) * | 2015-12-04 | 2016-03-30 | 北京金风科创风电设备有限公司 | Test tool of wind driven generator and method for testing tested piece of wind driven generator |
| CN106546421A (en) * | 2016-10-21 | 2017-03-29 | 武汉船用机械有限责任公司 | A kind of distance-adjustable oar hub assay device |
| CN109158870A (en) * | 2018-10-12 | 2019-01-08 | 山东中车风电有限公司 | It is a kind of big heavy without seam allowance flange face equipment high efficiency centering method |
| CN111487048A (en) * | 2020-04-20 | 2020-08-04 | 三一重能有限公司 | Testing device and testing equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445012A (en) * | 2015-12-04 | 2016-03-30 | 北京金风科创风电设备有限公司 | Test tool of wind driven generator and method for testing tested piece of wind driven generator |
| CN106546421A (en) * | 2016-10-21 | 2017-03-29 | 武汉船用机械有限责任公司 | A kind of distance-adjustable oar hub assay device |
| CN106546421B (en) * | 2016-10-21 | 2019-02-05 | 武汉船用机械有限责任公司 | A kind of distance-adjustable oar hub experimental rig |
| CN109158870A (en) * | 2018-10-12 | 2019-01-08 | 山东中车风电有限公司 | It is a kind of big heavy without seam allowance flange face equipment high efficiency centering method |
| CN111487048A (en) * | 2020-04-20 | 2020-08-04 | 三一重能有限公司 | Testing device and testing equipment |
| CN111487048B (en) * | 2020-04-20 | 2022-07-05 | 三一重能股份有限公司 | Testing device and testing equipment |
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Application publication date: 20141008 |