CN103776527B - A kind of band carries the motor oscillating proving installation under state - Google Patents
A kind of band carries the motor oscillating proving installation under state Download PDFInfo
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- CN103776527B CN103776527B CN201410013052.2A CN201410013052A CN103776527B CN 103776527 B CN103776527 B CN 103776527B CN 201410013052 A CN201410013052 A CN 201410013052A CN 103776527 B CN103776527 B CN 103776527B
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Abstract
Motor oscillating proving installation under the object of the present invention is to provide a kind of band to carry state, comprise magnetic dynamometer machine, piezoelectric acceleration sensor, basis, magnetic dynamometer machine is arranged on basis, tested horizontal machine is arranged on basis by piezoelectric force transducer and coupling arrangement thereof, the axle of tested horizontal machine is arranged on the bearing of tested horizontal machine, magnetic dynamometer machine is connected by spring coupling as the axle of load with tested horizontal machine, outer wall outside tested horizontal machine bearing arranges piezoelectric acceleration sensor, the integrated strain-type torque sensor of described magnetic dynamometer machine and magnetoelectric tachometric transducer.The present invention more fully can evaluate the motor especially vibration characteristics of motor under band carries state, improves motor oscillating and comprises motor energization testing scheme, can record the vibration characteristics of motor under zero load and load behavior credibly.
Description
Technical field
What the present invention relates to is a kind of vibration-testing apparatus, specifically motor oscillating proving installation.
Background technology
Motor, as power source, is the important component part of many devices.When Low Noise Design is carried out to such device, the vibration characteristics of motor must be considered." GB10068-2008 " is traditional motor oscillating method of testing, and this method regulation motor not bringing onto load device, does not take over the motor oscillating under what load condition under only also can only investigating idle condition.But the actual use of motor is all bringing onto loads to be run, and once its run with load, the characteristic in electric machine rotor magnetic field will be affected.Especially for induction motor, larger change will be there is in the revolutional slip that band carries rear motor, the electromagnetism impulse excitation power frequency that stator-rotator magnetic field interactions produces and large young pathbreaker change, there is greatest differences in the vibration of motor under unloaded and band carry state, the method for " GB10068-2008 " can not obtain the Vibration Condition of motor under band carries state.
Motor is as driving power source, reciprocating pump, centrifugal pump, blower fan, screw pump, gear case etc. mechanical load is often accessed in engineer applied, the vibration sources such as the pulsation moment of torsion of mechanical load and pulsating force are often greater than the vibration source of motor, make in motor-driven mechanical load device, the vibration of motor itself is covered, and can not obtain the Vibration Condition of motor originally under band carries state.
Conventional motors vibration-testing only investigates the vibration acceleration of motor bearings installation place, belongs to the vibration of motor itself, and does not consider that motor is installed to the impact for vibration equipment after equipment, is unfavorable for low noise equipment de-sign.
Summary of the invention
The object of the present invention is to provide and more fully evaluate the motor especially motor oscillating proving installation of motor under being with a kind of band of the vibration characteristics under the state of carrying to carry state.
The object of the present invention is achieved like this:
A kind of band of the present invention carries the motor oscillating proving installation under state, it is characterized in that: comprise magnetic dynamometer machine, piezoelectric acceleration sensor, basis, magnetic dynamometer machine is arranged on basis, tested horizontal machine is arranged on basis by piezoelectric force transducer and coupling arrangement thereof, the axle of tested horizontal machine is arranged on the bearing of tested horizontal machine, magnetic dynamometer machine is connected by spring coupling as the axle of load with tested horizontal machine, outer wall outside tested horizontal machine bearing arranges piezoelectric acceleration sensor, the integrated strain-type torque sensor of described magnetic dynamometer machine and magnetoelectric tachometric transducer.
A kind of band of the present invention carries the motor oscillating proving installation under state, it is characterized in that: comprise magnetic dynamometer machine, piezoelectric acceleration sensor, basis, transition mounting rack, tested vertical machine is arranged on basis by piezoelectric force transducer and coupling arrangement thereof, the below on basis arranges transition mounting rack, magnetic dynamometer machine to be arranged on transition mounting rack and to be arranged on the below of transition mounting rack, the axle of tested vertical machine is arranged on the bearing of tested vertical machine, magnetic dynamometer machine is connected by spring coupling as the axle of load with tested vertical machine, outer wall outside tested vertical machine bearing arranges piezoelectric acceleration sensor, the integrated strain-type torque sensor of described magnetic dynamometer machine and magnetoelectric tachometric transducer.
The present invention can also comprise:
1, described piezoelectric force transducer and coupling arrangement thereof comprise transition frame, erecting frame on force snesor, erecting frame under force snesor, annular piezoelectric force transducer, transition frame is connected with the under-chassis of motor by motor under-chassis coupling bolt, transition frame is connected by coupling bolt in transition frame with erecting frame on force snesor, motor under-chassis, transition frame, on force snesor, erecting frame is arranged from top to bottom successively, under force snesor, erecting frame is connected with basis by coupling bolt under transition frame, on force snesor, erecting frame is connected by metallic cylinder with erecting frame under force snesor, annular piezoelectric force transducer to be arranged on force snesor under erecting frame and force snesor between erecting frame.
2, the outer wall place of described piezoelectric acceleration sensor outside bearing be 90 degree, interval layout circumferentially.
Advantage of the present invention is: the present invention more fully can evaluate the motor especially vibration characteristics of motor under band carries state, improve motor oscillating and comprise motor energization testing scheme, the vibration characteristics of motor under zero load and load behavior can be recorded credibly.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is directed to horizontal machine;
Fig. 2 is the structural representation that the present invention is directed to vertical machine;
Fig. 3 a is piezoelectric force transducer of the present invention and coupling arrangement structural representation thereof, and Fig. 3 b is A-A view.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 ~ 3, a kind of band of the present invention carries the motor oscillating proving installation under state, mainly comprise: by measured motor 4,8, spring coupling 2, magnetic dynamometer machine 1, piezoelectric force transducer and coupling arrangement 6, piezoelectric acceleration sensor 3, transition mounting rack 11, motor under-chassis coupling bolt 14, adopt magnetic dynamometer machine 1 as load, by at motor under-chassis 15 mounting circular ring type piezoelectric force transducer 19, measure the acting force that motor under-chassis 15 is delivered to basis 5, and by installing piezoelectric acceleration sensor 3 at bearing seat, measure the acceleration of bearing seat; Load adopts spring coupling 2 to be connected with by measured motor, weakens the impact of the fluctuation of load on motor oscillating; Magnetic dynamometer machine 1 is integrated with strain-type torque sensor and magnetoelectric tachometric transducer, can measure the rotational speed and torque of motor; Under-chassis 15 transmitting force and bearing seat acceleration is adopted jointly to evaluate the vibration of motor.Adopt impulse excitation and vibrate all less magnetic dynamometer machine 1 as load, realization band carries the vibration-testing under operating mode.Reliably sealed in piezoelectric force transducer and coupling arrangement 6 thereof by between measured motor under-chassis 15 and basis 5, be installed to contribution for vibration equipment after equipment in order to evaluate motor.The vibration of motor itself and motor can be evaluated simultaneously and be installed to contribution for vibration equipment after equipment.
The present invention is achieved by the following technical solutions: magnetic dynamometer machine 1 has low pulse excitation, much less with vibration than the impulse excitation of mechanical load, and in order to measure motor oscillating, the present invention adopts magnetic dynamometer machine 1 as load.Magnetic dynamometer machine 1 is integrated with strain gauge torque transducer and magnetoelectric tachometric transducer, is convenient for measuring load torque and the running speed of motor, and owing to adopting magnetic powders brake principle, by regulating the electric current of internal coil, the torque of magnetic load can be controlled, by magnetic dynamometer machine 1 be rigidly connected on hard basis 5 by measured motor, it connects the requirement that effect need meet " GB10068-2008 ", ensure that the repeatability of test, circular ring type piezoelectric force transducer 19 is all sealed in by each installation under-chassis between measured motor and basis 5, concrete mounting means as shown in Figure 3, upper and lower erecting frame 18, 20 constitute independently force sensor units with circular ring type piezoelectric force transducer 19, the erecting frame up and down 18 of this unit, 20 are connected by a thin-wall metal cylindrical drum, when upper erecting frame 18 is stressed, middle piezoelectric force transducer 19 can be passed to preferably, be converted into electric signal to export, thus the acting force that motor is delivered to basis 5 can be recorded, the size of this acting force can be used for evaluating motor and be installed to impact for vibration equipment after equipment, due to motor under-chassis installation dimension and force snesor installation dimension inconsistent, devise a kind of transition frame 17, motor under-chassis is connected with the upper erecting frame 18 of force snesor by this transition frame 17, and the lower erecting frame 19 of force snesor is directly reliably connected by bolt 16 with basis 5, adopt spring coupling 2 to be connected (as diaphragm coupling) between dynamometer machine with motor, thus weaken the impact of load vibration for motor oscillating further, with reference to " GB10068-2008 ", at the circumferential position of motor bearings mounting points, interval 90o arranges piezoelectric acceleration sensor 3, is used for the magnitude of vibrations of evaluation motor itself.The output signal of all the sensors is electric signal, when testing, being gathered and transferring to computing machine process by data collecting instrument, finally can obtain vibration acceleration and the under-chassis vibration force of motor.
Claims (2)
1. the motor oscillating proving installation under a band year state, it is characterized in that: comprise magnetic dynamometer machine, piezoelectric acceleration sensor, basis, magnetic dynamometer machine is arranged on basis, tested horizontal machine is arranged on basis by piezoelectric force transducer and coupling arrangement thereof, the axle of tested horizontal machine is arranged on the bearing of tested horizontal machine, magnetic dynamometer machine is connected by spring coupling as the axle of load with tested horizontal machine, outer wall outside tested horizontal machine bearing arranges piezoelectric acceleration sensor, the integrated strain-type torque sensor of described magnetic dynamometer machine and magnetoelectric tachometric transducer,
Described piezoelectric force transducer and coupling arrangement thereof comprise transition frame, erecting frame on force snesor, erecting frame under force snesor, annular piezoelectric force transducer, transition frame is connected with the under-chassis of motor by motor under-chassis coupling bolt, transition frame is connected by coupling bolt in transition frame with erecting frame on force snesor, motor under-chassis, transition frame, on force snesor, erecting frame is arranged from top to bottom successively, under force snesor, erecting frame is connected with basis by coupling bolt under transition frame, on force snesor, erecting frame is connected by metallic cylinder with erecting frame under force snesor, annular piezoelectric force transducer to be arranged on force snesor under erecting frame and force snesor between erecting frame.
2. the motor oscillating proving installation under a kind of band year state according to claim 1, is characterized in that: the outer wall place of described piezoelectric acceleration sensor outside bearing be 90 degree, interval layout circumferentially.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020987.2A CN105675118B (en) | 2014-01-13 | 2014-01-13 | A kind of motor oscillating test device under band load state |
| CN201410013052.2A CN103776527B (en) | 2014-01-13 | 2014-01-13 | A kind of band carries the motor oscillating proving installation under state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013052.2A CN103776527B (en) | 2014-01-13 | 2014-01-13 | A kind of band carries the motor oscillating proving installation under state |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020987.2A Division CN105675118B (en) | 2014-01-13 | 2014-01-13 | A kind of motor oscillating test device under band load state |
Publications (2)
| Publication Number | Publication Date |
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| CN103776527A CN103776527A (en) | 2014-05-07 |
| CN103776527B true CN103776527B (en) | 2016-01-27 |
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| CN201410013052.2A Active CN103776527B (en) | 2014-01-13 | 2014-01-13 | A kind of band carries the motor oscillating proving installation under state |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352588B (en) * | 2015-09-08 | 2020-08-11 | 北京航空航天大学 | Design method of brushless direct current motor vibration detection system |
| CN107246948B (en) * | 2017-07-11 | 2019-04-12 | 哈尔滨工程大学 | A kind of detection device and method of motor oscillating characteristic frequency |
| CN109540540A (en) * | 2018-11-09 | 2019-03-29 | 安徽合力股份有限公司 | A kind of the run-in test system and test method of electric traction railway carriage axle assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008309605A (en) * | 2007-06-14 | 2008-12-25 | Ono Sokki Co Ltd | Chassis dynamometer control system and engine dynamometer control system |
| CN201255660Y (en) * | 2008-09-03 | 2009-06-10 | 中国船舶重工集团公司第七○四研究所 | Composite alternating torque and twist vibration loading experiment platform |
| CN102840911A (en) * | 2011-06-22 | 2012-12-26 | 霍尼韦尔国际公司 | Vibration severity analysis apparatus and method for rotating machinery |
| CN103063427A (en) * | 2012-12-12 | 2013-04-24 | 海安县兰菱机电设备有限公司 | Vertical type torque and rotating speed testing device |
-
2014
- 2014-01-13 CN CN201410013052.2A patent/CN103776527B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008309605A (en) * | 2007-06-14 | 2008-12-25 | Ono Sokki Co Ltd | Chassis dynamometer control system and engine dynamometer control system |
| CN201255660Y (en) * | 2008-09-03 | 2009-06-10 | 中国船舶重工集团公司第七○四研究所 | Composite alternating torque and twist vibration loading experiment platform |
| CN102840911A (en) * | 2011-06-22 | 2012-12-26 | 霍尼韦尔国际公司 | Vibration severity analysis apparatus and method for rotating machinery |
| CN103063427A (en) * | 2012-12-12 | 2013-04-24 | 海安县兰菱机电设备有限公司 | Vertical type torque and rotating speed testing device |
Non-Patent Citations (2)
| Title |
|---|
| 高速永磁电机机组轴系振动研究;王天煜等;《振动与冲击》;20110930;第30卷(第9期);第111-115页 * |
| 高速电主轴动力学分析与实验研究;孟杰;《中国博士学位论文全文数据库 工程科技I辑》;20090615(第06期);正文第34-36，81-84页 * |
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| CN103776527A (en) | 2014-05-07 |
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