CN102519693A - Platform for testing mechanical resonant inhibit function of alternating-current permanent magnet servo system - Google Patents
Platform for testing mechanical resonant inhibit function of alternating-current permanent magnet servo system Download PDFInfo
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- CN102519693A CN102519693A CN2011103959609A CN201110395960A CN102519693A CN 102519693 A CN102519693 A CN 102519693A CN 2011103959609 A CN2011103959609 A CN 2011103959609A CN 201110395960 A CN201110395960 A CN 201110395960A CN 102519693 A CN102519693 A CN 102519693A
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Abstract
The invention relates to a platform for testing a mechanical resonant inhibit function of an alternating-current permanent magnet servo system, which aims at achieving test of the mechanical resonant inhibit function and comprises a tested motor, a coupling, a high-accuracy coded disc, a transmission shaft, an inertia disc, an inertia disc loading tray, a loading motor, a first support, a second support, a third support, an inertia disc tray and a base plate. A high-accuracy photoelectric coder is respectively installed in the tested motor and the loading motor, a motor shaft of the tested motor is connected with the transmission shaft through the coupling, the high-accuracy coded disc is supported through the second support, the inertia disc is arranged on the inertia disc tray, the transmission shaft penetrates through a middle through hole of the inertia disc in a suspension mode, and the motor shaft of the tested motor, the coupling, the transmission shaft, the inertia disc loading tray and a motor shaft of the loading motor are coaxially connected in sequence. The platform is used for testing inhibit effects of a servo driver in a transmission system on mechanical resonant.
Description
Technical field
The present invention provides a kind of mechanical resonant to suppress test platform, is specifically related to a kind of AC permanent magnetic servo system mechanics resonance inhibit feature test platform.
Background technology
Servo drive system is important component part in the current power drive field, and complete servo drive system is made up of electric part and mechanical part jointly, and the raising of system performance receives two parts and restricts jointly.At the mechanical driving part of servo drive system, servo drive system often uses gearings such as transmission shaft, variator, shaft coupling and connects motor and load.And practical transmission is not ideal rigid body, has certain elasticity.In the typical industrial control system equipment, servomotor connects with topworks through the limited gearing of this type rigidity.In the two quality systems of the motor-load of this flexible connection; The flexible regular meeting that exists introduces mechanical resonant in the mechanical transmission mechanism of servo-drive system; Mainly be presented as the vibration of mechanical hook-up, the vibration of motor and load speed, mechanical phenomenons such as motor output torque vibration.Mechanical resonant also can cause severe impairment to mechanical driving device except meeting has a strong impact on the production and processing quality, influence its serviceable life.Mechanical resonant can cause the controlled quentity controlled variable vibration in the control system, makes the stability of closed-loop control and adjustable be restricted.At present, carry out a lot of researchs that suppress about mechanical resonant both at home and abroad, proposed the scheme that multiple mechanical resonant suppresses.Also possessed automatic identification of mechanical resonant and the function that suppresses automatically in some high-end servo brands.But, be directed to the mechanical resonant inhibit feature, still there is not test platform accurately, can only in concrete the application, use the online resonance inhibit feature of each servo brand, lack comprehensive contrast ability, therefore can't pass judgment on the quality of each servo brand resonance inhibit feature.Mechanical resonant proposed by the invention suppresses test platform, for head it off designs.
Summary of the invention
The purpose of this invention is to provide a kind of AC permanent magnetic servo system mechanics resonance inhibit feature test platform, with the resonance inhibit feature of measurement mechanical kinematic train.
The present invention includes by measured motor, shaft coupling, high precision code-disc, transmission shaft, inertia dish, inertia dish and load pallet, loading motor, first support, second support, the 3rd support, inertia disk in pallet and chassis; On the described tested motor internal motor shaft high precision photoelectric scrambler has been installed; Be connected with transmission shaft through shaft coupling by the motor shaft of measured motor; Be fixed on the chassis through first support by measured motor; On the described loading motor internal electrical arbor high precision photoelectric scrambler has been installed, loading motor is fixed on the chassis through the 3rd support, and described second support is fixed on the chassis; The high precision code-disc is through second stent support; Described inertia dish is suspended on the transmission shaft through the inertia disk in pallet, is being uniform-distribution with a plurality of small sircle holes on the annulus of inertia dish and to load the number and the present position of small sircle hole on the pallet identical with the inertia dish, and inertia disk in pallet bottom is fixed on the base; Described inertia dish loads the motor shaft end that pallet is fixed on loading motor, is loaded coaxial in order connection of motor shaft of pallet and loading motor by the motor shaft of measured motor, shaft coupling, transmission shaft, inertia dish.
AC permanent magnetic servo system mechanics resonance inhibit feature test platform advantage of the present invention is: can be positioned over when 1, the inertia dish does not load on the inertia disk in pallet, transmission shaft is from unsettled the passing of inertia dish mesopore; Only need that when needs change load inertia the inertia dish is installed to the inertia dish and load on the pallet, simple and convenient.2, have many replaceable transmission shafts, and can load the inertia dish of varying number.Therefore but the mechanical resonant frequency presetting range is bigger, can in bigger frequency range, carry out the test of mechanical resonant inhibit feature.3. use the high precision photoelectric scrambler to measure motor side and load end position simultaneously, thereby can accurately measure motor side and load end rotating speed, can accurately detect the mechanical resonant signal in the system through loading motor driver or host computer.4, the exportable continuously adjustable load torque of loading motor can be simulated all types of actual loadings, improves the online simulation ability of test platform.
Description of drawings
Fig. 1 is the synoptic diagram of AC permanent magnetic servo system mechanics resonance inhibit feature test platform.
Embodiment
Embodiment one, the present invention includes by measured motor 1, shaft coupling 2, high precision code-disc 3, transmission shaft 4, inertia dish 5, inertia dish and load pallet 6, loading motor 7, first support 8, second support 9, the 3rd support 10, inertia disk in pallet 11 and chassis 12; Describedly on the measured motor 1 internal electrical arbor high precision photoelectric scrambler has been installed; Be connected with transmission shaft 4 through shaft coupling 2 by the motor shaft of measured motor 1; Be fixed on the chassis 12 through first support 8 by measured motor 1; On the described loading motor 7 internal electrical arbors high precision photoelectric scrambler has been installed; Loading motor 7 is fixed on the chassis 12 through the 3rd support 10; Described second support 9 is fixed on the chassis 12, and high precision code-disc 3 supports through second support 9, and described inertia dish 5 is suspended on the transmission shaft 4 through inertia disk in pallet 11; Be uniform-distribution with a plurality of small sircle holes on the annulus of inertia dish 5 and to load the number and the present position of small sircle hole on the pallet 6 identical with the inertia dish; Inertia disk in pallet 11 bottoms are fixed on the base 12, and described inertia dish loads the motor shaft end that pallet 6 is fixed on loading motor 7, are loaded coaxial in order connection of motor shaft of pallet 6 and loading motor 7 by the motor shaft of measured motor 1, shaft coupling 2, transmission shaft 4, inertia dish.
Through loading the inertia dish 5 that loads varying number on the pallet 6, change load inertia at the inertia dish.When inertia dish 5 need not be loaded on inertia dish loading pallet 6, inertia disk in pallet 11 places in the middle of can being placed on, transmission shaft 4 is from inertia dish 5 middle unsettled passing, thus the convenient inertia dish 5 that under the situation of not changing transmission shaft, increases and decreases at any time.Individual quantity through changing inertia dish 5 can change load rotating inertia; Can change mechanical resonant frequency and amplitude; Can load by the moment of measured motor 1 through loading motor 7, thereby make the AC permanent magnetic servo system in a bigger frequency range, preset mechanical resonant frequency and test.
Suppose the transmission shaft of 4 different elasticity coefficient of design, and 8 inertia dishes that inertia is identical.The inertia dish loads pallet, the moment of inertia of loading motor and the moment of inertia of transmission shaft and is about 1.5 * 10 altogether
-3Kgm
2, estimate that the inertia of each inertia dish is about 1.5 * 10
-3Kgm
2Resonance frequency under different transmission shafts and the inertia dish is as shown in table 1.
Table 1 transmission shaft and inertia dish parameter list
Embodiment two, this embodiment are with the different of embodiment one: by measured motor 1 and loading motor 7 inner two high precision photoelectric scramblers installing resolution is
Can accurately measure in real time, signal carried out analytical calculation, obtain accurate resonance frequency and rotating speed, corner information through loading motor controller or upper computer software by the rotating speed of measured motor 1 end and loading motor 7 ends and two ends speed discrepancy signal.And then, can test and estimate the effect of servo drive system mechanical resonant inhibit feature.Through the transmission shaft of changing different elasticity coefficient and the inertia dish that loads varying number, can preset mechanical resonant frequency within the specific limits; Through the measuring-signal of high precision photoelectric scrambler, can Accurate Analysis go out actual machine resonance frequency in the system; Through contrasting, can verify the accuracy of tested servo-drive system on-line identification resonance frequency with the actual machine resonance frequency; After adding the resonance inhibit feature, quantitative test resonance peak attenuation.
Embodiment three, this embodiment are with the different of embodiment one: the loading moment of loading motor 7 is adjustable continuously.
Loading motor 7 can be simulated all types of actual loadings, improves the online simulation ability of test platform.
Claims (3)
1. AC permanent magnetic servo system mechanics resonance inhibit feature test platform; It is characterized in that: it comprises by measured motor (1), shaft coupling (2), high precision code-disc (3), transmission shaft (4), inertia dish (5), inertia dish and loads pallet (6), loading motor (7), first support (8), second support (9), the 3rd support (10), inertia disk in pallet (11) and chassis (12); Describedly on measured motor (1) the internal electrical arbor high precision photoelectric scrambler has been installed; Be connected with transmission shaft (4) through shaft coupling (2) by the motor shaft of measured motor (1); Be fixed on the chassis (12) through first support (8) by measured motor (1); On described loading motor (7) the internal electrical arbor high precision photoelectric scrambler has been installed; Loading motor (7) is fixed on the chassis (12) through the 3rd support (10); Described second support (9) is fixed on the chassis (12), and high precision code-disc (3) supports through second support (9), and described inertia dish (5) is suspended on the transmission shaft (4) through inertia disk in pallet (11); On the annulus of inertia dish (5), be uniform-distribution with a plurality of small sircle holes and identical with the number and the present position of the last small sircle hole of inertia dish loading pallet (6); Inertia disk in pallet (11) bottom is fixed on the base (12), and described inertia dish loads the motor shaft end that pallet (6) is fixed on loading motor (7), is loaded pallet (6) by the motor shaft of measured motor (1), shaft coupling (2), transmission shaft (4), inertia dish and is connected with the motor shaft of loading motor (7) is coaxial in order.
2. AC permanent magnetic servo system mechanics resonance inhibit feature test platform according to claim 1 is characterized in that: by inner two the high precision photoelectric scramblers installing of measured motor (1) and loading motor (7) resolution is
3. AC permanent magnetic servo system mechanics resonance inhibit feature test platform according to claim 1, it is characterized in that: the loading moment of loading motor (7) is adjustable continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110395960.9A CN102519693B (en) | 2011-12-02 | 2011-12-02 | Platform for testing mechanical resonant inhibit function of alternating-current permanent magnet servo system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110395960.9A CN102519693B (en) | 2011-12-02 | 2011-12-02 | Platform for testing mechanical resonant inhibit function of alternating-current permanent magnet servo system |
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| CN102519693A true CN102519693A (en) | 2012-06-27 |
| CN102519693B CN102519693B (en) | 2014-03-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645064A (en) * | 2013-12-25 | 2014-03-19 | 沈阳机床(集团)有限责任公司 | Electromechanical coupling performance test board of feeding shaft of numerical control machine tool |
| CN104297683A (en) * | 2014-10-10 | 2015-01-21 | 北京交通大学 | Servo motor limit capacity testing table |
| CN106125675A (en) * | 2016-08-04 | 2016-11-16 | 上海宇航***工程研究所 | A kind of single shaft high-precision servo control system device for adjusting and measuring |
| CN106646220A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Spaceflight servo motor variable working condition dynamic loading system and spaceflight servo motor variable working condition dynamic loading method |
| CN108132437A (en) * | 2017-11-30 | 2018-06-08 | 上海电气集团股份有限公司 | A kind of AC servo driver end jitter suppression functional test platform |
| CN108917912A (en) * | 2018-09-03 | 2018-11-30 | 上海电气集团股份有限公司 | The detection system of driver mechanical resonant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645064A (en) * | 2013-12-25 | 2014-03-19 | 沈阳机床(集团)有限责任公司 | Electromechanical coupling performance test board of feeding shaft of numerical control machine tool |
| CN104297683A (en) * | 2014-10-10 | 2015-01-21 | 北京交通大学 | Servo motor limit capacity testing table |
| CN106646220A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Spaceflight servo motor variable working condition dynamic loading system and spaceflight servo motor variable working condition dynamic loading method |
| CN106125675A (en) * | 2016-08-04 | 2016-11-16 | 上海宇航***工程研究所 | A kind of single shaft high-precision servo control system device for adjusting and measuring |
| CN108132437A (en) * | 2017-11-30 | 2018-06-08 | 上海电气集团股份有限公司 | A kind of AC servo driver end jitter suppression functional test platform |
| CN108917912A (en) * | 2018-09-03 | 2018-11-30 | 上海电气集团股份有限公司 | The detection system of driver mechanical resonant |
| CN108917912B (en) * | 2018-09-03 | 2021-07-16 | 上海电气集团股份有限公司 | Detection system for mechanical resonance of driver |
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| Publication number | Publication date |
|---|---|
| CN102519693B (en) | 2014-03-26 |
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