CN202255880U - Simulation test stand for variable-pitch systems - Google Patents
Simulation test stand for variable-pitch systems Download PDFInfo
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- CN202255880U CN202255880U CN2011204089209U CN201120408920U CN202255880U CN 202255880 U CN202255880 U CN 202255880U CN 2011204089209 U CN2011204089209 U CN 2011204089209U CN 201120408920 U CN201120408920 U CN 201120408920U CN 202255880 U CN202255880 U CN 202255880U
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Abstract
The utility model discloses a simulation test stand for variable-pitch systems, which comprises a support mechanism, a vibrating table and an environment simulation box. The support mechanism is used for mounting a variable-pitch system to be detected, the vibrating table has preset vibration frequency, the environment simulation box provides set temperature and humidity, the vibrating table contacts with the support mechanism, and the support mechanism is disposed in the environment simulation box. Before a simulation test for the variable-pitch system is started, the variable-pitch system to be detected is placed on the support mechanism at first, and is positioned in the environment simulation box due to the fact that the support mechanism is positioned in the environment simulation box; and when the simulation test is started, the vibrating table generates vibration at the preset vibration frequency, and simultaneously, the environment simulation box provides the preset temperature and humidity. Accordingly, the variable-pitch system to be detected is positioned in an environment under conditions with vibration and certain temperature and humidity, the environment is close to a working environment of the variable-pitch system, and a better simulation test result can be obtained.
Description
Technical field
The utility model relates to the fan performance test equipment technical field, particularly a kind of pitch-controlled system simulator stand.
Background technology
Along with the outburst of energy crisis in the world wide, regenerative resources such as wind-force are used more and more widely, thereby have driven the development of wind generating technology.Blower fan is the nucleus equipment of wind-power electricity generation, and the performance of blower fan directly has influence on the efficient of wind-power electricity generation.
At present, the mainstream model of blower fan is feather type blower fan (hereinafter to be referred as becoming the oar blower fan), become the oar blower fan and adjust the propeller pitch angle of blade according to change of wind velocity through its pitch-controlled system, so that more as far as possible absorbing wind energy, thereby the output power of control generator.Particularly, under higher wind velocity condition, propeller pitch angle reduces the air-flow angle of attack and comes power-limiting to keep less lift along with the increase of wind speed is constantly adjusted to positive setting angle direction, under higher wind velocity condition, can make the output power of generator remain on rated power; When output power during less than the rated power state, the pitch-controlled wind-driven generator group adopts the Optitip technology, and promptly according to the size of wind speed, adjustment generator revolutional slip makes it operate in best tip speed ratio to optimize output power as far as possible; Like this, propeller pitch angle can be regulated with the size of wind speed automatically, thereby can be as far as possible more absorbing wind energy, simultaneously in the power output of high wind speed section held stationary.
Pitch-variable system is one of core that becomes by the oar blower fan; Pitch-variable system generally is installed in the axial fan hub; Rotate with wind wheel, it is damp and hot etc. than in the rugged environment to operate in vibration, high temperature, low temperature, alternation, and pitch-controlled system occurs that wiring gets loose, controller is overheated, misrepresents deliberately fault even becomes some row problems such as oar cabinet cracking through regular meeting; The generation of these problems has had a strong impact on the reliability and the security of blower fan; And need the maintenance personal to get into the wheel hub maintenance after ging wrong, difficult in maintenance, maintenance period is long.
Pitch-controlled system is the important brake system of wind-powered electricity generation unit on the other hand; When wind speed surpasses the excision wind speed or has emergency condition to need stoppage protection; Pitch-controlled system is first brake system of blower fan, and blade is wanted feathering braking, if break down can not feathering for pitch-controlled system; Driving may take place in blower fan, even collapses.
In order to develop more reliable, safer pitch-controlled system; Must carry out simulation test in testing laboratory to pitch-controlled system; The pilot project of pitch-controlled system all is to carry out separately at present; Shortage can be carried out the testing equipment of compbined test, can't in testing laboratory, reflect the running status of pitch-controlled system more realistically, makes the environmental simulation test effect of pitch-controlled system and practical effect differ far away.
Therefore, how to make the simulated environment of pitch-controlled system, improve the simulation test effect, just become the problem that those skilled in the art need solve more near actual condition.
The utility model content
The purpose of the utility model provides a kind of pitch-controlled system simulator stand, and it can provide the experimental enviroment near the pitch-controlled system real working condition, thereby makes the simulated environment of pitch-controlled system more near actual condition, thereby has simulation test effect preferably.
For solving the problems of the technologies described above; The utility model provides a kind of pitch-controlled system simulator stand; Comprise the supporting mechanism that is used to install pitch-controlled system to be detected, also comprise shaking table and the environmental chamber of being scheduled to humiture is provided with predetermined vibration frequency and predetermined acceleration; Said shaking table contacts with said supporting mechanism, and said supporting mechanism is arranged in the said environmental chamber.
Preferably, said predetermined vibration frequency is identical with acceleration with the suffered at work vibration frequency of said pitch-controlled system to be detected.
Preferably, said predetermined humiture is identical with the humiture of said pitch-controlled system to be detected working environment of living in.
Preferably, also comprise the rotating speed simulation mechanism, the output shaft of said rotating speed simulation mechanism and said supporting mechanism are in transmission connection.
Preferably, said rotating speed simulation mechanism comprises power source, and said power source is connected with speed reduction unit, and the output shaft of said speed reduction unit and said supporting mechanism are in transmission connection.
Preferably, said rotating speed simulation mechanism also comprises shaft coupling, and said shaft coupling is installed between the output shaft and said supporting mechanism of said speed reduction unit.
Preferably, also comprise mount pad, said rotating speed simulation mechanism is arranged on the said mount pad.
Preferably, also comprise switch board, the power line of said pitch-controlled system to be detected is connected with said switch board.
Preferably, the signal wire of said pitch-controlled system to be detected is connected with said switch board.
Preferably, said power line is connected with said switch board through slip ring respectively with said signal wire.
The pitch-controlled system simulator stand that the utility model provided; Comprise the supporting mechanism that is used to install pitch-controlled system to be detected; Also comprise shaking table with predetermined vibration frequency; With the environmental chamber that predetermined humiture is provided, said shaking table contacts with said supporting mechanism, and said supporting mechanism is arranged in the said environmental chamber.Before the simulation test of carrying out pitch-controlled system begins, earlier pitch-controlled system to be detected is placed on the supporting mechanism, because supporting mechanism is positioned at environmental chamber, pitch-controlled system then to be detected is positioned at environmental chamber; Simulation test begins, and shaking table produces the vibration of predetermined vibration frequency, and simultaneously, environmental chamber provides predetermined temperature and humidity.Like this, in simulation test, pitch-controlled system to be detected is in existing vibration, has again under the condition of uniform temperature and humidity, more near the work condition environment of pitch-controlled system, thereby obtains simulation test effect preferably.
In a kind of embodiment, the pitch-controlled system simulator stand that the utility model provided also comprises the rotating speed simulation mechanism, and the output shaft and the supporting mechanism of this rotating speed simulation mechanism are in transmission connection.In the real operating mode of pitch-controlled system, vibration and certain humiture environment are not only arranged, also exist and rotate; The testing table of setting up the rotating speed simulation mechanism is in the process of simulation test; Certain rotating speed can also be provided, make the residing simulated environment of pitch-controlled system to be detected not only involving vibrations, humiture environment also to comprise rotation; Thereby further simulated real work condition environment, and then further improved the simulation test effect.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of pitch-controlled system simulator stand that the utility model provided.
Embodiment
The core of the utility model provides a kind of pitch-controlled system simulator stand, and it can provide the experimental enviroment near the pitch-controlled system real working condition, thereby makes the simulated environment of pitch-controlled system more near actual condition, thereby has simulation test effect preferably.
In order to make those skilled in the art person understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of pitch-controlled system simulator stand that the utility model provided.
In a kind of embodiment, the pitch-controlled system simulator stand that the utility model provided is used for pitch-controlled system is carried out the l-G simulation test of simulated condition, and this pitch-controlled system simulator stand comprises supporting mechanism 3, shaking table 2 and environmental chamber 8; Wherein, supporting mechanism 3 is used to install pitch-controlled system to be detected, and shaking table 2 can have predetermined vibration frequency and predetermined acceleration under the effect of vibration source; The vibration of predetermined vibration frequency and acceleration is provided for pitch-controlled system in process of the test; Environmental chamber 8 can provide predetermined humiture, and shaking table 2 contacts with supporting mechanism 3, and the vibration of shaking table 2 just can pass to supporting mechanism 3; And then pass to the pitch-controlled system to be detected on the supporting mechanism 3; Simultaneously, supporting mechanism 3 is arranged in the environmental chamber 8, and just supporting mechanism 3 and pitch-controlled system to be detected on the supporting mechanism 3 are in the humiture environment that environmental chamber more than 8 provides.
Shaking table 2 can have multiple with the connected mode of supporting mechanism 3; Both can directly connect with bolt, also can use fixed forms such as pressing plate, can also connect through other fixed forms; The effect of shaking table 2 is for pitch-controlled system to be detected vibration to be provided; Therefore, as long as being connected between shaking table 2 and the supporting mechanism 3 can transmitting vibrations, both concrete connected modes are not done qualification at this.
The effect of above-mentioned supporting mechanism 3 is in process of the test, to provide support for pitch-controlled system to be detected; The concrete structure of supporting mechanism 3 can for; Supporting mechanism 3 comprises fixing frock and the spring bearing 9 supported of wheel hub, and wherein wheel hub is fixing supports that frock is installed on the above-mentioned shaking table 2, and in process of the test; The wheel hub of pitch-controlled system to be detected is fixed on the fixing top of supporting frock of above-mentioned wheel hub, and realizes positioning supports through spring bearing 9.
Supporting mechanism 3 also is not limited to above-mentioned concrete structure, and its effect is merely in process of the test to pitch-controlled system provides support, and it can be the conventional various supporting tools that use in this area.
Environmental chamber 8 can be specially the aircondition that proper temperature and humidity can be provided.The casing of environmental chamber 8 can also can be other shapes for square, and is for example cylindrical etc.The material of environmental chamber 8 can be the conventional various metal materials that use in this area.The predetermined vibration frequency that above-mentioned shaking table 2 is provided and the pitch-controlled system to be detected frequency and the acceleration of suffered vibration at work are identical, so that guarantee that the pitch-controlled system simulator stand is more near the real working condition environment.Because in the working environment of reality; The residing vibration environment of pitch-controlled system is not unalterable; Therefore; Above-mentioned predetermined vibration frequency and acceleration should be frequency ranges, and this frequency range should confirm that its concrete vibration frequency and acceleration range are not done qualification at this according to the frequency and the acceleration of more appearance in the actual operating position.
The predetermined humiture that above-mentioned environmental chamber 8 is provided is identical with the humiture of pitch-controlled system to be detected working environment of living in, so that guarantee that further experimental enviroment that the pitch-controlled system simulator stand provides is more near the real working condition environment.Should predetermined temperature humidity range also should be a temperature humidity range, its reason and above-mentioned reason be similar, repeat no more at this.
Before the simulation test of carrying out pitch-controlled system begins, earlier pitch-controlled system to be detected is placed on the supporting mechanism 3, because supporting mechanism 3 is positioned at environmental chamber 8, pitch-controlled system then to be detected is positioned at environmental chamber 8; Simulation test begins, the vibration that shaking table 2 produces predetermined vibration frequency and acceleration, and simultaneously, environmental chamber 8 provides predetermined temperature and humidity.Like this, in simulation test, pitch-controlled system to be detected is in existing vibration, has again under the condition of uniform temperature and humidity, more near the work condition environment of pitch-controlled system, thereby obtains simulation test effect preferably.
On the basis of above-mentioned embodiment, can also the pitch-controlled system simulator stand that the utility model provided further be improved.
Please continue with reference to figure 1; In another kind of embodiment; The pitch-controlled system simulator stand that the utility model provided also comprises the rotating speed simulation mechanism; The output shaft of this rotating speed simulation mechanism and said supporting mechanism 3 are in transmission connection, and the rotating speed of the output shaft output of rotating speed simulation mechanism passes to supporting mechanism 3, and then passes to the blade pitch device to be detected on the supporting mechanism 3; In the real operating mode of pitch-controlled system, vibration and certain humiture environment are not only arranged, also exist and rotate; The testing table of setting up the rotating speed simulation mechanism is in the process of simulation test; Certain rotating speed can also be provided, make the residing simulated environment of pitch-controlled system to be detected not only involving vibrations, humiture environment also to comprise rotation; Thereby further simulated real work condition environment, and then further improved the simulation test effect.
The concrete structure of rotating speed simulation mechanism can for, the rotating speed simulation mechanism comprises power source 5, power source 5 is connected with speed reduction unit 6, the output shaft of speed reduction unit 6 and said supporting mechanism 3 are in transmission connection.
Above-mentioned power source 5 can be motor, also can be conventional other dynamical elements that use in this area, for example oil motor etc.
Above-mentioned rotating speed simulation mechanism also comprises shaft coupling 7, and said shaft coupling 7 is installed between the output shaft and said supporting mechanism 3 of said speed reduction unit 6.This shaft coupling 7 can be cross universal coupling.Also can be the frequent fluid power Pole Coupling of using in this area.
The pitch-controlled system simulator stand that these practical new situations provided can also comprise mount pad, and above-mentioned rotating speed simulation mechanism is arranged on the mount pad.
Above-mentioned mount pad can be the cast iron square chest.
The pitch-controlled system simulator stand comprises switch board, and the power line of pitch-controlled system to be detected is connected with switch board, with the control of convenient pitch-controlled system to be detected.
The signal wire of pitch-controlled system to be detected also is connected with switch board.
Power line is connected with switch board through slip ring 10 respectively with signal wire.
More than a kind of pitch-controlled system simulator stand that the utility model provided has been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. pitch-controlled system simulator stand; Comprise the supporting mechanism (3) that is used to install pitch-controlled system to be detected; It is characterized in that, also comprise shaking table (2) and the environmental chamber (8) of being scheduled to humiture is provided with predetermined vibration frequency and predetermined acceleration; Said shaking table (2) contacts with said supporting mechanism (3), and said supporting mechanism (3) is arranged in the said environmental chamber (8).
2. pitch-controlled system simulator stand according to claim 1 is characterized in that, said predetermined vibration frequency and said predetermined acceleration and said the pitch-controlled system to be detected frequency and the acceleration of suffered vibration at work are identical.
3. pitch-controlled system simulator stand according to claim 1 is characterized in that, said predetermined humiture is identical with the humiture of said pitch-controlled system to be detected working environment of living in.
4. according to each described pitch-controlled system simulator stand of claim 1 to 3, it is characterized in that also comprise the rotating speed simulation mechanism, the output shaft of said rotating speed simulation mechanism and said supporting mechanism (3) are in transmission connection.
5. pitch-controlled system simulator stand according to claim 4; It is characterized in that; Said rotating speed simulation mechanism comprises power source (5), and said power source (5) is connected with speed reduction unit (6), and the output shaft of said speed reduction unit (6) and said supporting mechanism (3) are in transmission connection.
6. pitch-controlled system simulator stand according to claim 5 is characterized in that, said rotating speed simulation mechanism also comprises shaft coupling (7), and said shaft coupling (7) is installed between the output shaft and said supporting mechanism (3) of said speed reduction unit (6).
7. pitch-controlled system simulator stand according to claim 6 is characterized in that, also comprises mount pad, and said rotating speed simulation mechanism is arranged on the said mount pad (1).
8. according to each described pitch-controlled system simulator stand of claim 1 to 4, it is characterized in that also comprise switch board (4), the power line of said pitch-controlled system to be detected is connected with said switch board.
9. pitch-controlled system simulator stand according to claim 8 is characterized in that, the signal wire of said pitch-controlled system to be detected is connected with said switch board.
10. pitch-controlled system simulator stand according to claim 9 is characterized in that, said power line is connected with said switch board through slip ring (10) respectively with said signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204089209U CN202255880U (en) | 2011-10-24 | 2011-10-24 | Simulation test stand for variable-pitch systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204089209U CN202255880U (en) | 2011-10-24 | 2011-10-24 | Simulation test stand for variable-pitch systems |
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| Publication Number | Publication Date |
|---|---|
| CN202255880U true CN202255880U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204089209U Expired - Fee Related CN202255880U (en) | 2011-10-24 | 2011-10-24 | Simulation test stand for variable-pitch systems |
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| Country | Link |
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| CN (1) | CN202255880U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323250A (en) * | 2013-06-20 | 2013-09-25 | 国电联合动力技术(连云港)有限公司 | Test system and method for simulating field operation of variable pitch system of wind generating set |
| CN106500972A (en) * | 2016-09-23 | 2017-03-15 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN107966658A (en) * | 2017-11-30 | 2018-04-27 | 天津航天瑞莱科技有限公司 | Motor composite testing system |
| CN107976315A (en) * | 2017-11-17 | 2018-05-01 | 西安航天动力测控技术研究所 | A kind of angle of attack yaw angle servo control mechanism for Ducted rocket free jet test |
| CN108387798A (en) * | 2018-02-27 | 2018-08-10 | 江苏拓米洛环境试验设备有限公司 | Combinational environment simulation experiment method |
| CN110530750A (en) * | 2019-08-13 | 2019-12-03 | 中国航发贵阳发动机设计研究所 | Abrasion tester under a kind of hot environment |
-
2011
- 2011-10-24 CN CN2011204089209U patent/CN202255880U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323250A (en) * | 2013-06-20 | 2013-09-25 | 国电联合动力技术(连云港)有限公司 | Test system and method for simulating field operation of variable pitch system of wind generating set |
| CN103323250B (en) * | 2013-06-20 | 2016-04-27 | 国电联合动力技术(连云港)有限公司 | Test system and method for simulating field operation of variable pitch system of wind generating set |
| CN106500972A (en) * | 2016-09-23 | 2017-03-15 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN106500972B (en) * | 2016-09-23 | 2019-10-18 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN107976315A (en) * | 2017-11-17 | 2018-05-01 | 西安航天动力测控技术研究所 | A kind of angle of attack yaw angle servo control mechanism for Ducted rocket free jet test |
| CN107976315B (en) * | 2017-11-17 | 2019-05-31 | 西安航天动力测控技术研究所 | A kind of angle of attack yaw angle servo mechanism for Ducted rocket free jet test |
| CN107966658A (en) * | 2017-11-30 | 2018-04-27 | 天津航天瑞莱科技有限公司 | Motor composite testing system |
| CN108387798A (en) * | 2018-02-27 | 2018-08-10 | 江苏拓米洛环境试验设备有限公司 | Combinational environment simulation experiment method |
| CN110530750A (en) * | 2019-08-13 | 2019-12-03 | 中国航发贵阳发动机设计研究所 | Abrasion tester under a kind of hot environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20131024 |