CN114414193A - Driving support device for vertical axis fan reduced scale model test - Google Patents
Driving support device for vertical axis fan reduced scale model test Download PDFInfo
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- CN114414193A CN114414193A CN202210025212.XA CN202210025212A CN114414193A CN 114414193 A CN114414193 A CN 114414193A CN 202210025212 A CN202210025212 A CN 202210025212A CN 114414193 A CN114414193 A CN 114414193A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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Abstract
The invention provides a driving support device for a vertical axis fan reduced scale model test, which comprises a frame assembly, a power mechanism and a slip ring mechanism, wherein the frame assembly is provided with a driving support seat; the power mechanism is in transmission connection with the slip ring mechanism through the frame assembly. The driving support device for the vertical axis fan reduced scale model test can fix the fan main body on the bottom platform and can drive the fan main body to stably run at a target rotating speed; meanwhile, the problem of motion interference of the sensor cable during rotation is solved; in addition, the modular design concept is adopted, and parts such as the driving motor, the transmission mechanism and the coupling can be flexibly replaced according to different test requirements, so that the universal test device has certain universality.
Description
Technical Field
The invention relates to the field of wind driven generators, in particular to a driving support device for a vertical axis fan reduced scale model test.
Background
In recent years, the ecological environment is greatly damaged by the excessive consumption of traditional fossil energy such as petroleum and coal. At present, the global development of green and environment-friendly clean energy has been widely agreed. Wind power is a clean, pollution-free and renewable green new energy, and the superiority of the wind power is more and more recognized by people. The wind driven generator is the most widely used wind energy development and utilization equipment at present, and can divide a fan into a horizontal shaft fan and a vertical shaft fan according to the spatial position relation between a rotating shaft of a wind wheel and an incoming flow direction or the ground. Because the wind power conversion efficiency is relatively high, the manufacturing cost is relatively low, the horizontal axis fan occupies a leading position in the current wind power market, and related projects and researches are mostly developed based on the horizontal axis fan. However, with the advent of lift-type vertical axis wind turbines, the wind energy utilization factor of vertical axis wind turbines has increased significantly, even beyond some horizontal axis wind turbines. Meanwhile, with the large-scale development of the fan, the installed capacity of a single fan is continuously increased, and the problems of high stress load and the like caused by the self weight of the blade of the horizontal shaft fan are increasingly highlighted. The vertical axis fan is again concerned and favored by scholars in and out of the sea due to the advantages of low overall gravity center, easy maintenance, no need of wind devices, low noise and the like.
In order to improve the working efficiency and prolong the service life, no matter the land fixed type fan or the offshore floating type fan, the power analysis and the performance check of the fan are required to be carried out in the design research and development stage. However, the cost of building a physical fan is very expensive, and the development of research by using an actual fan is not practical. The fan model test according to a certain scale has the characteristics of relatively low cost, easy simulation control of environmental load and the like, and becomes an important means for research and development and performance analysis of the wind driven generator.
In a wind turbine model test, a driving motor is generally required to be arranged to drive a wind turbine to operate at a target rotating speed. Therefore, in the vertical axis fan model test, the technical problem to be solved firstly is how to select and arrange the driving system, so that the wind wheel can rotate stably at the target rotating speed, and meanwhile, what connection mode is adopted to fix the model and the bottom platform. In addition, the wind driven generator has a large number of physical quantities involved in the operation process, and measuring the physical quantities requires selecting various sensors of different types and considering the motion interference relationship between components. The method has the advantages that the loading conditions of the rotating blades and the cross braces in the wind field can be obtained and used for evaluating the accuracy of numerical simulation, and the method has a constructive effect on the aerodynamic characteristic analysis of the model fan.
In the current available vertical axis fan model test, a driving motor rotating shaft is directly connected with a fan model tower drum and arranged under a model fan. The coaxial driving mode has the advantages of simple structure, small volume and the like. However, since the wind wheel body is rotating and the driving motor and the supporting structure are fixed, the sensor cable arranged on the rotating fan generates movement interference with the fixed structure, so that the driving and supporting method is difficult to measure the load on the rotating blade.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a driving and supporting device for a vertical axis fan reduced scale model test, which can fix a fan main body on a bottom platform and can drive the fan main body to stably run at a target rotating speed; meanwhile, the problem of motion interference of the sensor cable during rotation is solved; in addition, the modular design concept is adopted, and parts such as the driving motor, the transmission mechanism and the coupling can be flexibly replaced according to different test requirements, so that the universal test device has certain universality.
In order to achieve the purpose, the invention provides a driving support device for a vertical axis fan reduced scale model test, which comprises a frame assembly, a power mechanism and a slip ring mechanism, wherein the frame assembly is provided with a frame body; the power mechanism is in transmission connection with the slip ring mechanism through the frame assembly.
Preferably, the frame generally comprises a main shaft frame, a main shaft, an inner end cover, two frame side plates, a sensor mounting plate and a bearing retainer ring; the frame side plates are symmetrically connected to two sides of the spindle frame; the main shaft is rotatably connected in the main shaft frame through two ball bearings and penetrates through the inner end cover and the bearing retainer ring, and the inner end cover and the bearing retainer ring axially position the main shaft; the sensor mounting plate is connected between the bottoms of the two frame side plates; the main shaft is hollow.
Preferably, the frame side plates form a plurality of lightening holes.
Preferably, the sensor mounting plate is fixed with the frame side plate in a threaded manner; a plurality of bolt holes are formed in the surface of the sensor mounting plate.
Preferably, a plurality of waterproof shell connecting screw holes are reserved on the periphery and the top of the frame.
Preferably, the power mechanism comprises a driving motor, a transmission mechanism and a spindle tower coupling; the driving motor is fixed on the frame in a threaded manner and is positioned on one side of the main shaft; the spindle tower coupling is detachably connected to the top end of the spindle; the driving motor is in transmission connection with the main shaft and the main shaft tower tube coupler through the transmission mechanism.
Preferably, the slip ring mechanism comprises a slip ring spindle coupling, a slip ring device and a slip ring stator connecting block; the main shaft is connected with the slip ring device through the slip ring main shaft coupler, and the slip ring device is arranged right below the main shaft and is concentric with the main shaft; the slip ring stator connecting block is in threaded connection with the frame side plate; and a slip ring stator of the slip ring device is fixed on the slip ring stator connecting block.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the frame generally adopts the integral type design, has considered the lightweight of device when guaranteeing structural strength. A hollow main shaft is arranged in the frame, and in consideration of the eccentricity problem possibly existing in the rotation of the vertical axis fan model, the main shaft adopts a positioning mode that an upper ball bearing and a lower ball bearing are matched with a bearing end cover, so that the concentricity of the rotating mechanism is guaranteed while motion is transmitted. In order to solve the problem of arrangement conflict between the output shaft of the power system and the slip ring device, a driving scheme of power system offset is innovatively adopted. The power system can select motor drive, and the output rotating speed of the motor is changed to control the rotating speed of the wind wheel. The transmission system is arranged on the top of the frame assembly, can be selected from gear transmission or belt transmission, and drives the wind wheel to rotate through the spindle tower coupling. In order to solve the problem of motion interference between a sensor cable and a fixing device in the rotating motion process and realize the measurement of the load of a blade of a rotating fan, a slip ring mechanism is additionally arranged in the device. The slip ring stator connecting block is generally connected with the frame, and the slip ring main shaft connecting sleeve is connected with the main shaft and the slip ring rotor. Meanwhile, cables of the slip ring device are uniformly distributed in the hollow main shaft and the model tower drum, so that the influence of a slip ring wire harness on the pneumatic performance of the fan model is avoided while the signal transmission safety is improved. And a bolt hole connected with the six-component force sensor is reserved at the bottom of the frame assembly and can be used for fixing a fan model and measuring the integral load of the fan. In addition, considering that water may splash above the floating platform in the floating fan pool model test, the driving support device needs to have certain waterproof capability in order to protect electronic equipment and elements. Therefore, waterproof shell connecting holes connected with the waterproof shell are reserved on the periphery and the top of the frame body, and the acrylic waterproof shell can be carried to achieve a certain waterproof effect.
Drawings
FIG. 1 is a schematic structural diagram of a first direction of a driving support device for a vertical axis fan reduced scale model test according to an embodiment of the invention;
FIG. 2 is a structural diagram of a second direction of the driving support device for the vertical axis fan reduced scale model test according to the embodiment of the invention;
FIG. 3 is a side view of a drive support device for a vertical axis wind turbine reduced scale model test according to an embodiment of the invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, which are set forth in detail below to provide a better understanding of the function and features of the invention.
Referring to fig. 1 to 3, a driving support device for a vertical axis fan reduced scale model test according to an embodiment of the present invention includes a frame assembly 1, a power mechanism 2, and a slip ring mechanism 3; the power mechanism 2 is in transmission connection with the slip ring mechanism 3 through the frame assembly 1.
The frame assembly 1 comprises a main shaft frame 11, a main shaft 12, an inner end cover 13, two frame side plates 14, a sensor mounting plate 15 and a bearing retainer ring 16; the frame side plates 14 are symmetrically connected to both sides of the spindle frame 11; the main shaft 12 is rotatably connected in the main shaft frame 11 through two ball bearings and is arranged in the inner end cover 13 and the bearing retainer ring 16 in a penetrating manner, and the inner end cover 13 and the bearing retainer ring 16 axially position the main shaft 12; the sensor mounting plate 15 is connected between the bottoms of the two frame side plates 14; the main shaft 12 is hollow.
The frame side plate 14 forms a plurality of lightening holes, and the frame side plate 14 adopts the design of trompil lightweight, lightens the structure weight under the prerequisite of guaranteeing structural strength.
The sensor mounting plate 15 is fixed with the frame side plate 14 in a threaded manner; the sensor mounting plate 15 has a plurality of bolt holes formed on its surface for connecting with a six-component sensor or a fixed base.
A plurality of waterproof shell connecting screw holes are reserved on the periphery and the top of the frame body 1, and the waterproof shell can be connected to achieve a certain waterproof effect.
The power mechanism 2 comprises a driving motor 21, a transmission mechanism 22 and a spindle tower coupling 23; the driving motor 21 is fixed on the frame assembly 1 by screw connection and is positioned at one side of the main shaft 12; the spindle tower coupling 23 is detachably connected to the top end of the spindle 12; the driving motor 21 is in transmission connection with the main shaft 12 and a main shaft tower coupling 23 through a transmission mechanism 22.
The slip ring mechanism 3 comprises a slip ring main shaft coupling 31, a slip ring device 32 and a slip ring stator connecting block 33; the main shaft 12 is connected with a slip ring device 32 through a slip ring main shaft coupler 31, the slip ring device 32 is arranged right below the main shaft 12 and is concentric with the main shaft 12, the problem of motion interference between a sensor cable and a fixed structure in the rotating process is solved, and the sensor cable can be used for measuring the load of a rotating blade by matching with a measuring device; the slip ring stator connecting block 33 is screwed on the frame side plate 14; the slip ring stator of the slip ring device 32 is fixed to the slip ring stator connection block 33.
The invention provides a driving support device for a vertical axis fan reduced scale model test, which is installed in the following sequence:
1. an assembly frame assembly 1 for mounting a drive motor 21;
2. the transmission shaft side gear is installed, and the motor side gear is installed;
3. the installation condition is checked, the two shaft systems rotate smoothly, and the meshing is stable;
4. a main shaft tower tube coupling 23 is arranged in the main shaft 12 and pressed into a shaft shoulder;
5. mounting the slip ring stator on the slip ring stator connecting block 33;
6. sleeving a slip ring main shaft coupler 31 into the main shaft 12, adjusting the circumferential position, installing fastening screws and paying attention to no screwing;
7. the slip ring cable penetrates through the through hole of the main shaft 12, the rotor is arranged in the connecting sleeve, and 4 fastening screws of the rotor are screwed;
8. adjusting the position of a slip ring device 32, screwing fastening screws of a slip ring main shaft coupler 31 and a main shaft 12, and simultaneously screwing mounting screws of a slip ring stator connecting block 33 and a frame side plate 14;
9. fixing the driving support device on the platform or the six-component force sensor;
8. if a water tank test is carried out, an acrylic waterproof shell can be arranged around the device.
The driving support device for the vertical axis fan reduced scale model test provided by the embodiment of the invention has the following innovation points:
1. by adopting the driving scheme of power system bias, the driving motor 21 is not arranged under the fan tower cylinder any more, so that an arrangement space is reserved for the slip ring device 32, and the problem of arrangement conflict between the output shaft of the power system and the slip ring device 32 is solved.
2. When the model wind wheel rotates, cables fixed on the model blades and the cross braces can be wound. Aiming at the problem, a slip ring device 32 is introduced and used for communicating and transmitting signals on the rotating wind wheel, the problem of motion interference of a sensor cable and a fixed foundation in the rotating process of the wind wheel is solved, and the measuring device can be used for measuring the load of the blade of the rotating fan.
3. By adopting the modularized design concept, the power mechanism 2, the transmission mechanism 22, the coupler and other parts can be flexibly replaced according to different test requirements, so that the universal test bed has stronger universality.
4. Because the main shaft 12 and the slip ring main shaft coupler 31 of the frame body 1 are both designed in a hollow mode, the slip ring device 32 and the sensor cable can be arranged inside the rotating shaft, the safety of transmission signals is effectively improved, and meanwhile the influence of slip ring wiring harnesses on the aerodynamic performance of the fan model is avoided.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (7)
1. A driving support device for a vertical axis fan reduced scale model test is characterized by comprising a frame assembly, a power mechanism and a slip ring mechanism; the power mechanism is in transmission connection with the slip ring mechanism through the frame assembly.
2. The drive support device for the vertical axis fan reduced scale model test according to claim 1, wherein the frame generally comprises a main shaft frame, a main shaft, an inner end cover, two frame side plates, a sensor mounting plate and a bearing retainer ring; the frame side plates are symmetrically connected to two sides of the spindle frame; the main shaft is rotatably connected in the main shaft frame through two ball bearings and penetrates through the inner end cover and the bearing retainer ring, and the inner end cover and the bearing retainer ring axially position the main shaft; the sensor mounting plate is connected between the bottoms of the two frame side plates; the main shaft is hollow.
3. The drive support device for the vertical axis wind turbine reduced scale model test according to claim 2, wherein the frame side plate is formed with a plurality of lightening holes.
4. The driving and supporting device for the vertical axis fan reduced scale model test according to claim 2, wherein the sensor mounting plate is fixed with the frame side plate in a threaded manner; a plurality of bolt holes are formed in the surface of the sensor mounting plate.
5. The drive support device for the vertical axis fan scale model test according to claim 2, wherein a plurality of waterproof housing connection holes are left on the periphery and the top of the frame assembly.
6. The driving and supporting device for the vertical axis fan reduced scale model test according to claim 2, wherein the power mechanism comprises a driving motor, a transmission mechanism and a spindle tower coupling; the driving motor is fixed on the frame in a threaded manner and is positioned on one side of the main shaft; the spindle tower coupling is detachably connected to the top end of the spindle; the driving motor is in transmission connection with the main shaft and the main shaft tower tube coupler through the transmission mechanism.
7. The drive support device for the vertical axis wind turbine reduced scale model test according to claim 2, wherein the slip ring mechanism comprises a slip ring main shaft coupling, a slip ring device and a slip ring stator connecting block; the main shaft is connected with the slip ring device through the slip ring main shaft coupler, and the slip ring device is arranged right below the main shaft and is concentric with the main shaft; the slip ring stator connecting block is in threaded connection with the frame side plate; and a slip ring stator of the slip ring device is fixed on the slip ring stator connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025212.XA CN114414193A (en) | 2022-01-11 | 2022-01-11 | Driving support device for vertical axis fan reduced scale model test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210025212.XA CN114414193A (en) | 2022-01-11 | 2022-01-11 | Driving support device for vertical axis fan reduced scale model test |
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| CN114414193A true CN114414193A (en) | 2022-04-29 |
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| CN202210025212.XA Pending CN114414193A (en) | 2022-01-11 | 2022-01-11 | Driving support device for vertical axis fan reduced scale model test |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507184A (en) * | 2011-10-24 | 2012-06-20 | 河南科技大学 | Common test bed device for use in vertical-axis wind wheel performance test |
| US20130168967A1 (en) * | 2011-07-22 | 2013-07-04 | Industrias Technoflex, S.A. | Vertical axis wind turbine |
| CN103514790A (en) * | 2012-06-21 | 2014-01-15 | 严强 | Wind energy teaching demonstration model |
| CN203393805U (en) * | 2013-08-17 | 2014-01-15 | 泰州市厨房宝电器有限公司 | Waterproof waste processor |
| CN206539454U (en) * | 2016-11-28 | 2017-10-03 | 天津大学 | A kind of floating vertical axis windmill model sport measurement apparatus |
| CN108766149A (en) * | 2018-05-20 | 2018-11-06 | 西京学院 | A kind of vertical axis aerogenerator model of Physical Experiment |
| CN110030165A (en) * | 2019-05-16 | 2019-07-19 | 上海交通大学 | A kind of floating blower scale model rotating vane aerodynamic loading monitoring device and method |
| CN110513253A (en) * | 2019-09-27 | 2019-11-29 | 福州大学 | A kind of floating marine formula blower wave environment analog platform device and its working method |
| CN110767049A (en) * | 2019-10-25 | 2020-02-07 | 王唯 | Vertical axis aerogenerator model for physics experiments |
| CN213163194U (en) * | 2020-08-12 | 2021-05-11 | 金华市蓝标工具科技有限公司 | Gear box for electric drill |
-
2022
- 2022-01-11 CN CN202210025212.XA patent/CN114414193A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130168967A1 (en) * | 2011-07-22 | 2013-07-04 | Industrias Technoflex, S.A. | Vertical axis wind turbine |
| CN102507184A (en) * | 2011-10-24 | 2012-06-20 | 河南科技大学 | Common test bed device for use in vertical-axis wind wheel performance test |
| CN103514790A (en) * | 2012-06-21 | 2014-01-15 | 严强 | Wind energy teaching demonstration model |
| CN203393805U (en) * | 2013-08-17 | 2014-01-15 | 泰州市厨房宝电器有限公司 | Waterproof waste processor |
| CN206539454U (en) * | 2016-11-28 | 2017-10-03 | 天津大学 | A kind of floating vertical axis windmill model sport measurement apparatus |
| CN108766149A (en) * | 2018-05-20 | 2018-11-06 | 西京学院 | A kind of vertical axis aerogenerator model of Physical Experiment |
| CN110030165A (en) * | 2019-05-16 | 2019-07-19 | 上海交通大学 | A kind of floating blower scale model rotating vane aerodynamic loading monitoring device and method |
| CN110513253A (en) * | 2019-09-27 | 2019-11-29 | 福州大学 | A kind of floating marine formula blower wave environment analog platform device and its working method |
| CN110767049A (en) * | 2019-10-25 | 2020-02-07 | 王唯 | Vertical axis aerogenerator model for physics experiments |
| CN213163194U (en) * | 2020-08-12 | 2021-05-11 | 金华市蓝标工具科技有限公司 | Gear box for electric drill |
Non-Patent Citations (5)
| Title |
|---|
| R.诺兰•克拉克: "《小型风电机组安装》" * |
| 孙瑞等: "小型垂直轴风机的数值模拟与试验对比研究", 《可再生能源》 * |
| 张琦等: "海洋工程试验的浮式风力发电机模型设计", 《实验室研究与探索》 * |
| 文恒等: "定向高效垂直轴风力机工作机理研究", 《内蒙古农业大学学报(自然科学版)》 * |
| 郭颖: "考虑浮体运动对气动载荷影响的浮式垂直轴风机运动研究", 《中国优秀硕士学位论文全文数据库（工程科技II辑）》 * |
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Application publication date: 20220429 |