CN203350014U - Resonance excitation device - Google Patents
Resonance excitation device Download PDFInfo
- Publication number
- CN203350014U CN203350014U CN 201320425874 CN201320425874U CN203350014U CN 203350014 U CN203350014 U CN 203350014U CN 201320425874 CN201320425874 CN 201320425874 CN 201320425874 U CN201320425874 U CN 201320425874U CN 203350014 U CN203350014 U CN 203350014U
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- China
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- bevel gear
- elastic hinge
- gear
- push rod
- excitation device
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Abstract
A resonance excitation device comprises a servo motor, bevel gears, a cylindrical gear, a toothed bar, a push rod, a torque beam, an elastic hinge and a balance. Bevel gear pairs convert the rotation of the servo motor into the rotation of the cylindrical gear which is perpendicular to the motor shaft. The cylindrical gear and the toothed bar are engaged, and thus the rotation of the gear is converted into a rectilinear motion of the toothed bar. The two ends of the push rod are connected with the toothed bar and the torque beam component respectively. The torque beam is fixedly arranged to the elastic hinge through screws. The balance is in sine reciprocating vibration around the rotation center shaft of the elastic hinge under the common action of the torque beam component and the elastic hinge component. The resonance excitation device is simple in structure, small in cross section installation dimension, and high in reciprocating motion positioning precision and is capable of satisfying the requirement of a wind tunnel dynamic derivative test.
Description
Technical field
The utility model relates to a kind of resonant excitation generating means, is mainly to be converted to the motion reversing arrangement of driving model resonance by the rotation of taper gear pair and rack-and-pinion adjutant servomotor.
Background technology
Constantly complicated along with modern Advanced Aircraft and guided missile improving constantly that mobility is required and profile thereof, understand dynamic motion in depth to the impact of the aerocraft dynamic stability ever more important that seems.The dynamic derivative data of aircraft are that aerocraft dynamic stability and flight quality are analyzed required important initial parameter, the Main Means that obtains the dynamic derivative data has theoretical calculating, flight test and wind tunnel test etc., wherein the dynamic derivative wind tunnel test can provide a large amount of pilot projects repeated with it, can obtain comprehensively, higher dynamic derivative data of degree of accuracy and be able to widespread use.When adopting the rigidity forced oscillation method to carry out pitching or driftage dynamic derivative testing, the fix simple harmonic oscillation of frequency and amplitude of exciting bank driving model, balance is measured the response in the model sport process, by the test under blowing and not blowing state, then processes and calculates dynamic derivative through data.
Pitching or driftage dynamic derivative testing exciting bank commonly used mainly contain the straight line hydraulic actuator, motor drives four-bar mechanism, motor driving crank slide block mechanism etc.But hydraulic system controllability relative mistake, and cost compare is high; Four-bar mechanism disturbs large, and the restriction that often is subject to construction of wind tunnel is installed; In the slider-crank mechanism motion process, exist at " dead point ", the export resonance curve is rough etc.
The utility model content
Technology of the present utility model is dealt with problems: overcome the deficiencies in the prior art, a kind of resonant excitation device is provided, directly the rotation of servomotor is converted to the rectilinear motion of the elastic beam push rod be connected with tooth bar.
Technical solution of the present utility model is:
A kind of resonant excitation device comprises: servomotor, the first bevel gear, the second bevel gear, cylinder
Gear, tooth bar, push rod, elastic hinge, moment beam and balance;
The first bevel gear is connected on the output shaft of servomotor, the first bevel gear and the engagement of the second bevel gear, the second bevel gear coaxially is connected with cylindrical gear, and the first bevel gear is converted to the rotation of servomotor the rotation of the second bevel gear, and the cylindrical gear coaxial with season and bevel gear rotates; The engagement of Cylinder Gear wheel and rack, drive tooth bar to move along rectilinear direction; One end of push rod is connected by screw thread and tooth bar, and the other end is connected with the moment beam, and the moment beam is fixed on elastic hinge, and balance is fixed on elastic hinge.
Described a kind of resonant excitation device is characterized in that: the inner cylinder face of push rod and elastic hinge forms and is slidably matched, restriction push rod other degree of freedom except axially.
Described a kind of resonant excitation device is characterized in that: the inner cylinder face of moment beam and the external cylindrical surface of elastic hinge form and are slidably matched, restraining moment beam other degree of freedom except axially.
The utility model has the advantages that:
1, a kind of resonant excitation device of the utility model, can control the angular displacement oscillating curve form of model by the output of servomotor, it is convenient, reliable to control.
2, a kind of resonant excitation device of the utility model, the drive gap of bevel gear pair and rack-and-pinion is little, has effectively solved the problem of the curve movement partial discontinuous of motor commutation process generation, and test accuracy is high.
3, a kind of resonant excitation device of the utility model, the conversion of servomotor directly is converted to the rectilinear motion of tooth bar by two auxiliary connections, servomotor and other device are realized being connected in series, and have effectively reduced the front face area of exciting bank as far as possible, have lowered the interference of stream field.
4, a kind of resonant excitation device of the utility model, simplicity of design, reasonable, compact conformation, be easy to dismounting, and cost is low, practical.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of resonant excitation device, comprising: servomotor 1, the first bevel gear 2, the second bevel gear 3, cylindrical gear 4, tooth bar 5, push rod 6, elastic hinge 7, moment beam 8 and balance 9;
The first bevel gear 2 is connected on the output shaft of servomotor 1, the first bevel gear 2 and the second bevel gear 3 engagements, the second bevel gear 3 coaxially is connected with cylindrical gear 4, the first bevel gear 2 is converted to the rotation of servomotor 1 rotation of the second bevel gear 3, and the second bevel gear 3 passes to cylindrical gear 4 by rotation and rotated; Cylindrical gear 4 and tooth bar 5 engagements, drive tooth bar 5 to move along rectilinear direction; Push rod 6 is inserted in elastic hinge 7 inside, and an end of push rod 6 is connected by screw thread and tooth bar 5, the other end is connected with moment beam 8 by straight pin, the front end of moment beam 8 is fixed on elastic hinge 7 by two housing screws, the rear end cone match of balance 9 front ends and elastic hinge 7, utilize chock to be fixed on elastic hinge 7.Push rod 6 is slidably matched with the inner cylinder face formation of elastic hinge 7, restriction push rod 6 other degree of freedom except axially.The external cylindrical surface of the inner cylinder face of moment beam 8 and elastic hinge 7 forms and is slidably matched, restraining moment beam 8 other degree of freedom except axially.
Servomotor 1 is with speed control mode, according to sinusoidal wave form, move back and forth, bevel gear pair 2 and 3, cylindrical gear, tooth bar secondary 4 are converted into the circular motion of servomotor 1 rectilinear motion of the tooth bar parallel with its axis jointly with 5, effectively reduced the front face area of exciting bank under the condition that does not change the sinusoidal feature of movement velocity, and bevel gear pair and rack-and-pinion are all selected high precision, gapless product, the partial discontinuous phenomenon of having avoided output waveform to cause because of reciprocal gap; The motion of tooth bar 5 passes to moment beam 8 through push rod 6, and balance 9 is done simple harmonic oscillation around the rotary middle spindle of elastic hinge under the acting in conjunction of moment beam 8 and elastic hinge 7.
Claims (3)
1. a resonant excitation device, is characterized in that comprising: servomotor (1), the first bevel gear (2), the second bevel gear (3), cylindrical gear (4), tooth bar (5), push rod (6), elastic hinge (7), moment beam (8) and balance (9);
The first bevel gear (2) is connected on the output shaft of servomotor (1), the first bevel gear (2) and the second bevel gear (3) engagement, the second bevel gear (3) and coaxial connection of cylindrical gear (4), the first bevel gear (2) is converted to the rotation of servomotor (1) rotation of the second bevel gear (3), and the cylindrical gear (4) coaxial with season and bevel gear (3) rotates; Cylindrical gear (4) and tooth bar (5) engagement, drive tooth bar (5) to move along rectilinear direction; One end of push rod (6) is connected by screw thread and tooth bar (5), and the other end is connected with moment beam (8), and it is upper that moment beam (8) is fixed on elastic hinge (7), and balance (9) is fixed on elastic hinge (7).
2. a kind of resonant excitation device according to claim 1 is characterized in that: the inner cylinder face of push rod (6) and elastic hinge (7) forms and is slidably matched, restriction push rod (6) other degree of freedom except axial.
3. a kind of resonant excitation device according to claim 1 is characterized in that: the external cylindrical surface of the inner cylinder face of moment beam (8) and elastic hinge (7) forms and is slidably matched, restraining moment beam (8) other degree of freedom except axial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320425874 CN203350014U (en) | 2013-07-15 | 2013-07-15 | Resonance excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320425874 CN203350014U (en) | 2013-07-15 | 2013-07-15 | Resonance excitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350014U true CN203350014U (en) | 2013-12-18 |
Family
ID=49749898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320425874 Expired - Fee Related CN203350014U (en) | 2013-07-15 | 2013-07-15 | Resonance excitation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350014U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576228A (en) * | 2017-08-15 | 2018-01-12 | 兰州空间技术物理研究所 | A kind of high synchronism rudder face folding and expanding mechanism |
| CN107830987A (en) * | 2017-12-04 | 2018-03-23 | 中国航空工业集团公司沈阳空气动力研究所 | Captive trajectory testing mechanism in six degree of freedom store Combinations pole based on Bevel Gear Transmission |
| CN107966265A (en) * | 2017-11-09 | 2018-04-27 | 中国航天空气动力技术研究院 | One kind is used for hypersonic wind tunnel pitching yaw forced vibration dynamic derivative experimental rig |
| CN108760523A (en) * | 2018-06-19 | 2018-11-06 | 无锡市欧凯电子有限公司 | A kind of pressure testing machine actuating device |
| CN112452922A (en) * | 2020-11-24 | 2021-03-09 | 嘉兴赛秦医疗器械有限公司 | Ultrasonic wave transduction equipment capable of cleaning inside |
| CN114878135A (en) * | 2022-07-07 | 2022-08-09 | 中国航空工业集团公司沈阳空气动力研究所 | Icing wind tunnel wing type sine oscillation mechanism |
| DE102022130379A1 (en) | 2022-11-16 | 2024-05-16 | Ford Global Technologies Llc | Device for generating structure-borne sound, especially in a test object |
-
2013
- 2013-07-15 CN CN 201320425874 patent/CN203350014U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576228A (en) * | 2017-08-15 | 2018-01-12 | 兰州空间技术物理研究所 | A kind of high synchronism rudder face folding and expanding mechanism |
| CN107576228B (en) * | 2017-08-15 | 2019-06-18 | 兰州空间技术物理研究所 | A kind of high synchronism rudder face folding and expanding mechanism |
| CN107966265A (en) * | 2017-11-09 | 2018-04-27 | 中国航天空气动力技术研究院 | One kind is used for hypersonic wind tunnel pitching yaw forced vibration dynamic derivative experimental rig |
| CN107966265B (en) * | 2017-11-09 | 2019-07-12 | 中国航天空气动力技术研究院 | One kind yawing forced vibration dynamic derivative experimental rig for hypersonic wind tunnel pitching |
| CN107830987A (en) * | 2017-12-04 | 2018-03-23 | 中国航空工业集团公司沈阳空气动力研究所 | Captive trajectory testing mechanism in six degree of freedom store Combinations pole based on Bevel Gear Transmission |
| CN107830987B (en) * | 2017-12-04 | 2024-04-12 | 中国航空工业集团公司沈阳空气动力研究所 | Six-degree-of-freedom mechanism store strut for capture track test based on bevel gear transmission |
| CN108760523A (en) * | 2018-06-19 | 2018-11-06 | 无锡市欧凯电子有限公司 | A kind of pressure testing machine actuating device |
| CN112452922A (en) * | 2020-11-24 | 2021-03-09 | 嘉兴赛秦医疗器械有限公司 | Ultrasonic wave transduction equipment capable of cleaning inside |
| CN114878135A (en) * | 2022-07-07 | 2022-08-09 | 中国航空工业集团公司沈阳空气动力研究所 | Icing wind tunnel wing type sine oscillation mechanism |
| DE102022130379A1 (en) | 2022-11-16 | 2024-05-16 | Ford Global Technologies Llc | Device for generating structure-borne sound, especially in a test object |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |