CN205670072U - Vibration dynamic centrifugal compound environmental tester based on piezoelectric ceramics hydraulic pressure - Google Patents
Vibration dynamic centrifugal compound environmental tester based on piezoelectric ceramics hydraulic pressure Download PDFInfo
- Publication number
- CN205670072U CN205670072U CN201620581010.3U CN201620581010U CN205670072U CN 205670072 U CN205670072 U CN 205670072U CN 201620581010 U CN201620581010 U CN 201620581010U CN 205670072 U CN205670072 U CN 205670072U
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- pivoted arm
- piezoelectric ceramics
- vibration
- motor
- output shaft
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Abstract
The utility model discloses a kind of vibration dynamic centrifugal compound environmental tester based on piezoelectric ceramics hydraulic pressure, including mair motor, pivoted arm, excitation system, rotating frame and interior motor, first end of described pivoted arm is vertical with the torque output shaft of described mair motor to be connected, described interior motor is arranged on the second end of described pivoted arm, the torque output shaft of described interior motor is vertically arranged with described pivoted arm, described rotating frame is fixing with the torque output shaft of described interior motor to be connected, described excitation system is arranged in described rotating frame, and described excitation system is provided with testpieces.This utility model provides the acceleration of vibration of full frequency band to export by excitation system for testpieces, and realize the real time dynamic simulation to testpieces 3-axis acceleration by mair motor and pivoted arm, two kinds of structures of summary, complete the combined environment testing ability to testpieces acceleration of vibration from low to high and the dynamic overloading acceleration of change.
Description
Technical field
This utility model relates to technical field of mechanical environmental test, particularly relates to a kind of based on piezoelectric ceramics-hydraulic pressure shake
Dynamic-dynamic centrifugal compound environmental tester.
Background technology
The complex loops such as dither, dynamic overload, temperature and the impact that weapon and aerospace system experience at flight course
Border, has complex effects to product structure intensity and reliability, especially vibrates and transships compound, being to affect flying product structure
Two kind environmental factorss the most significant with function.Along with weapon and the fast development of Aero-Space cause, to weapon and Aero-Space
Mechanism in system and electronic equipment carry out structural strength and functional reliability examination has become as the emphasis of relevant industries.
Current Assessment mainly has two kinds.The first is by the flight test of reality, and advantage is can real mould
Intend the combinational environment of flight system experience, but flight test not only cost is high, the cycle is long, and be difficult on principle and design rank
Section provides strong technical support.The second way is to carry out mechanical environment simulation test on ground, such as vibration test, centrifugal
Test etc..The environmental test technology of this single factors domestic and international comparative maturity at present, but Multi-factor overlap test difficulty
Greatly, compound mechanics environmental test is especially vibrated and transships.
Utility model content
The purpose of this utility model is that provide a kind of based on piezoelectric ceramics-hydraulic pressure shakes to solve the problems referred to above
Dynamic-dynamic centrifugal compound environmental tester.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure, including mair motor, pivoted arm,
Excitation system, rotating frame and interior motor, the first end of described pivoted arm is vertical with the torque output shaft of described mair motor to be connected, described
Interior motor is arranged on the second end of described pivoted arm, and the torque output shaft of described interior motor is vertically arranged with described pivoted arm, described rotation
Turning that the torque output shaft of frame and described interior motor is fixing to be connected, described excitation system is arranged in described rotating frame, described exciting
Testpieces is installed in system.
Specifically, described interior motor be quantity be two, the second end of described pivoted arm is Y type bifurcation structure, described in two
Interior motor is separately fixed at the divergent ends of described Y type bifurcation structure, and the torque output shaft of two described interior motors is arranged at institute
State in Y type bifurcation structure, and wherein dead in line, described rotating frame is arranged between described Y type bifurcation mechanism, and its two ends are divided
The torque output shaft of interior motor described with two is not fixing is connected.
Preferably, the line between two interior motors overlaps with the axis of described pivoted arm, the axis of described excitation system
Line overlaps with the axis of described pivoted arm.
Specifically, described excitation system includes mounting platform, excitation platform, exciting unit and hydraulic cylinder, and described exciting is put down
Platform is fixing with the hydraulic stem of described hydraulic cylinder to be connected, and is horizontally disposed with, and described mounting platform is arranged on the upper of described excitation platform
Side, and be connected by multiple described exciting unit and described excitation platform are fixing, described mounting platform is provided with testpieces.
Specifically, to include that piezoelectric ceramics and displacement amplifying mechanism, described piezoelectric ceramics are arranged on described for described exciting unit
In displacement amplifying mechanism, and with described displacement amplifying mechanism interference fit, the top and bottom of described displacement amplifying mechanism are the most logical
Cross that the upper side of connecting bolt and the downside of described mounting platform and described excitation platform is fixing to be connected.
The beneficial effects of the utility model are:
This utility model vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure passes through exciting system
Unite and the acceleration of vibration output of full frequency band is provided for testpieces, and realized testpieces 3-axis acceleration by mair motor and pivoted arm
Real time dynamic simulation, two kinds of structures of summary, complete testpieces acceleration of vibration from low to high and dynamically become
The combined environment testing ability of the overloading acceleration changed.
Accompanying drawing explanation
Fig. 1 is vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure described in the utility model
Structural representation；
Fig. 2 is the structural representation of excitation system described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of vibration based on piezoelectric ceramics 10-hydraulic pressure of this utility model-dynamic centrifugal combinational environment examination
Experiment device, including mair motor 1, pivoted arm 2, excitation system 6, rotating frame 5 and interior motor 3 (with 4), the first end of pivoted arm 2 and main electricity
The torque output shaft of machine 1 vertically connects, and interior motor 3 is arranged on the second end of pivoted arm 2, the torque output shaft of interior motor 3 and pivoted arm 2
Being vertically arranged, rotating frame 5 is fixing with the torque output shaft of interior motor 3 to be connected, and excitation system 6 is arranged in rotating frame 5, exciting system
System 6 on testpieces 7 is installed, interior motor 3 be quantity be two, the second end of pivoted arm 2 is Y type bifurcation structure, two interior motors 3
Being separately fixed at the divergent ends of Y type bifurcation structure, the torque output shaft of two interior motors 3 is arranged in Y type bifurcation structure, and
Wherein dead in line, rotating frame 5 is arranged between Y type bifurcation mechanism, and its two ends export with the torque of two interior motors 3 respectively
Axle is fixing to be connected, and the line between two interior motors 3 overlaps with the axis of pivoted arm 2, the axis of excitation system 6 and pivoted arm 2
Axis overlap.
As in figure 2 it is shown, excitation system 6 includes mounting platform 8, excitation platform 11, exciting unit and hydraulic cylinder, excitation platform
11 fixing with the hydraulic stem of hydraulic cylinder are connected, and are horizontally disposed with, and mounting platform 8 is arranged on the top of excitation platform 11, and passes through
Multiple exciting unit are fixing with excitation platform 11 to be connected, and mounting platform 8 is provided with testpieces 7, and exciting unit includes that piezoelectricity is made pottery
Porcelain 10 and displacement amplifying mechanism 9, piezoelectric ceramics 10 is arranged in displacement amplifying mechanism 9, and joins with displacement amplifying mechanism 9 interference
Close, all upper by connecting bolt and the downside of mounting platform 8 and excitation platform 11 of the top and bottom of displacement amplifying mechanism 9
Side is fixing to be connected.
The work of this utility model vibration based on piezoelectric ceramics 10-hydraulic pressure-dynamic centrifugal compound environmental tester is former
Manage as follows:
Mair motor 1 drives pivoted arm 2 to rotate, and testpieces 7 exports the overloading acceleration value of dynamically change, by interior motor
3 drive rotating frame 5 to rotate, and the overloading acceleration value dynamically changed are decomposed on tri-axles of xyz of testpieces 7, it is achieved to examination
Test the simulation of the 3-axis acceleration environment of any time in part 7 flight course.
Exciting force is being produced by the reciprocating motion of piezoelectric ceramics 10, and by displacement amplifying mechanism 9 by piezoelectric ceramics 10
The displacement equations of output, the vibration test completing the high band to testpieces 7 is examined, and by the exciting of hydraulic cylinder, it is right to complete
The vibration test examination of the low-frequency range of testpieces 7, by exciting unit and the series connection of hydraulic cylinder, completes full frequency band vibration test
Examination.
The weight and volume of the high-frequency excitation subsystem of piezoelectric ceramics 10 and displacement amplifying mechanism 9 composition is the least, and exciting is former
Reason is simple, and easily realizes processing and debug with precision.By connecting with hydraulic vibration gen, it is achieved dynamically change acceleration environment
Under the output of wideband acceleration of vibration, complete testpieces 7 acceleration of vibration from low to high and the overload of dynamically change
The combined environment testing examination of acceleration, can cover several hertz of vibration frequency range to several KHz.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, within each falling within protection domain of the present utility model.
Claims (5)
1. vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure, it is characterised in that: include main
Motor, pivoted arm, excitation system, rotating frame and interior motor, the first end of described pivoted arm hangs down with the torque output shaft of described mair motor
Direct-connected connecing, described interior motor is arranged on the second end of described pivoted arm, and the torque output shaft of described interior motor is vertical with described pivoted arm
Arranging, described rotating frame is fixing with the torque output shaft of described interior motor to be connected, and described excitation system is arranged on described rotating frame
In, described excitation system is provided with testpieces.
Vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure the most according to claim 1, its
Be characterised by: described interior motor be quantity be two, the second end of described pivoted arm is Y type bifurcation structure, two described interior motors
Being separately fixed at the divergent ends of described Y type bifurcation structure, the torque output shaft of two described interior motors is arranged at described Y type and divides
In fork structure, and wherein dead in line, described rotating frame is arranged between described Y type bifurcation mechanism, and its two ends are respectively with two
The torque output shaft of individual described interior motor is fixing to be connected.
Vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure the most according to claim 2, its
It is characterised by: the line between two interior motors overlaps with the axis of described pivoted arm, the axis of described excitation system and institute
The axis stating pivoted arm overlaps.
Vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure the most according to claim 3, its
It is characterised by: described excitation system includes mounting platform, excitation platform, exciting unit and hydraulic cylinder, described excitation platform and institute
Stating the fixing connection of hydraulic stem of hydraulic cylinder, and be horizontally disposed with, described mounting platform is arranged on the top of described excitation platform, and leads to
Cross that multiple described exciting unit and described excitation platform are fixing to be connected, described mounting platform is provided with testpieces.
Vibration-dynamic centrifugal compound environmental tester based on piezoelectric ceramics-hydraulic pressure the most according to claim 4, its
It is characterised by: described exciting unit includes that piezoelectric ceramics and displacement amplifying mechanism, described piezoelectric ceramics are arranged on described displacement and put
In great institutions, and with described displacement amplifying mechanism interference fit, the top and bottom of described displacement amplifying mechanism all by connect
Bolt is fixing with the upper side of the downside of described mounting platform and described excitation platform to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581010.3U CN205670072U (en) | 2016-06-14 | 2016-06-14 | Vibration dynamic centrifugal compound environmental tester based on piezoelectric ceramics hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581010.3U CN205670072U (en) | 2016-06-14 | 2016-06-14 | Vibration dynamic centrifugal compound environmental tester based on piezoelectric ceramics hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205670072U true CN205670072U (en) | 2016-11-02 |
Family
ID=57192272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620581010.3U Expired - Fee Related CN205670072U (en) | 2016-06-14 | 2016-06-14 | Vibration dynamic centrifugal compound environmental tester based on piezoelectric ceramics hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205670072U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928681A (en) * | 2016-06-14 | 2016-09-07 | 中国工程物理研究院总体工程研究所 | Piezoelectric ceramics-hydraulic vibration-dynamic centrifugal complex environment testing device |
| CN106992712A (en) * | 2017-06-08 | 2017-07-28 | 盐城工学院 | Piezoelectric hydraulic mixed straight line type stepper motor and its method of work |
| CN109974983A (en) * | 2018-12-24 | 2019-07-05 | 天津航天瑞莱科技有限公司 | The spin of testpieces and acceleration coupling test device |
-
2016
- 2016-06-14 CN CN201620581010.3U patent/CN205670072U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928681A (en) * | 2016-06-14 | 2016-09-07 | 中国工程物理研究院总体工程研究所 | Piezoelectric ceramics-hydraulic vibration-dynamic centrifugal complex environment testing device |
| CN106992712A (en) * | 2017-06-08 | 2017-07-28 | 盐城工学院 | Piezoelectric hydraulic mixed straight line type stepper motor and its method of work |
| CN106992712B (en) * | 2017-06-08 | 2019-05-17 | 盐城工学院 | Piezoelectricity-hydraulic hybrid linear type stepper motor and its working method |
| CN109974983A (en) * | 2018-12-24 | 2019-07-05 | 天津航天瑞莱科技有限公司 | The spin of testpieces and acceleration coupling test device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161102 Termination date: 20200614 |