CN201242426Y - Outer rotor kinetic pressure air-float bearing motor attitude angle and device for testing bearing angular rigidity - Google Patents
Outer rotor kinetic pressure air-float bearing motor attitude angle and device for testing bearing angular rigidity Download PDFInfo
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- CN201242426Y CN201242426Y CNU2008201096764U CN200820109676U CN201242426Y CN 201242426 Y CN201242426 Y CN 201242426Y CN U2008201096764 U CNU2008201096764 U CN U2008201096764U CN 200820109676 U CN200820109676 U CN 200820109676U CN 201242426 Y CN201242426 Y CN 201242426Y
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Abstract
A testing device for the posture angle of an outer rotor dynamic pressure air-float bearing motor and the bearing rigidity is provided, which comprises an axle diameter adjusting block, an axle pressing block, a main bracket, an axle base adjusting block and a sensor, wherein the axle diameter adjusting block and the axle base adjusting block are connected with the main bracket, and are mutually matched to fix a to-be-tested motor on the main bracket, the relative position of the to-be-tested motor and the sensor is adjusted through the axle base adjusting block, the sensor is connected with the main bracket through a sensor fixing base, and is axially perpendicular to the to-be-tested motor. When in testing, the probe of the sensor is fixed opposite to the outer circumferential surface of an electrified motor rotor keeping in a certain distance dependent on the self weight of the motor, the testing device is rotated, testing values on the positions of 0 degree, 90 degrees, 180 degrees and 270 degrees are respectively read, and the posture angle of the motor and the bearing rigidity are obtained through the calculation. The utility model is suitable for various outer rotor dynamic pressure air-float motors, has simple and accurate testing method.
Description
Technical field
The utility model relates to a kind of motor proving installation, particularly a kind of device that the attitude angle and the bearing rigidity of outer rotor kinetic pressure air-float bearing of inner motor are tested of being used for.
Background technology
At present, both at home and abroad the outer rotor kinetic pressure air-float bearing of inner motor attitude angle testing apparatus that adopts mainly is that motor frock by special use is fixed on motor on the dividing head, capacitive transducer is fixed in the radial position of motor simultaneously, this kind testing apparatus has the following disadvantages: at first be that test fixture is single, same test fixture can only be applicable to a kind of motor, and different motors must use different test fixtures; Secondly, motor drive shaft uses single dovetail and flat clamp to fix usually, and the time that is installed is long, and 3 of motor drive shafts are stressed, cause motor drive shaft left and right sides pressure inhomogeneous in the test process easily, influence test result, and the flat clamp single-point is stressed, can produce distortion after use a period of time, can't continue to use; Once more, capacitive transducer fixes distance between itself and motor by M3 screw radially, because the M3 screw thread is thin, pretightning force is little, is easy to generate looseningly in the use, causes test process to repeat.Therefore measure single the average spended time of motor also more than 10 minutes, the test duration is longer; At last, capacitive transducer commonly used both at home and abroad at present, its measuring accuracy has only 0.01 μ m, the attitude error of bringing has 5.6 °, with respect to the motor of some attitude angle less than 10 °, its test error has reached 50%, and test error is big, only be suitable for a small amount of motor and make testing research, be not suitable for the test in enormous quantities of industrial-scale production.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, provide that a kind of Measuring Time is short, precision is high, good reproducibility and be fit to the outer rotor kinetic pressure air-float bearing of inner motor attitude angle and the bearing rigidity test device of multiple motor.
Technical solution of the present utility model is: outer rotor kinetic pressure air-float bearing of inner motor attitude angle and bearing rigidity test device comprise: diameter of axle regulating block, axial compression piece, main support, wheelbase regulating block and sensor; Diameter of axle regulating block is connected with main support with the wheelbase regulating block, and diameter of axle regulating block and the cooperation of axial compression piece are fixed in motor to be measured on the main support, and the relative position of motor to be measured and sensor is adjusted by the wheelbase regulating block; Sensor is connected in main support and axial vertical with motor to be measured by the sensor holder.
Proving installation also comprises the dividing head that is used for accurately controlling described rotation axis rotational angle, and dividing head is connected on the rotation axis of motor to be measured by the dividing head connector.
Proving installation also comprises the sensor adjustment mother who is used to adjust sensor and motor relative position to be measured, and sensor adjustment mother is connected in the axial location of sensor.
Described sensor is a capacitive transducer, and its measuring accuracy is 0.002 μ m.
Leave dovetail groove on the face of the fixing motor revolving shaft to be measured of described diameter of axle regulating block and axial compression piece.
The range of adjustment of described diameter of axle regulating block is 3mm～10mm.
The range of adjustment of described wheelbase regulating block is 20mm～60mm.
The utility model advantage compared with prior art is:
(1) the utility model device uses diameter of axle regulating block to adjust the different diameters of axle and wheelbase with the wheelbase regulating block, makes same test fixture can be applicable to multiple motor, can use same frock when the different motor of test;
(2) the utility model device uses double swallow tailed groove to fix tested motor drive shaft, and the time that is installed is short, and 4 of motor drive shafts are stressed even, motor drive shaft left and right sides pressure unanimity in test process, do not influence test result, and the dove-tail pressing plate is because two point is stressed evenly, long-term use can not produce distortion;
(3) the utility model device fixes distance between sensor and motor by the sensor adjustment mother, sensor adjustment mother can accomplish that pretightning force is big more than the M6, does not produce loosening in the test process, avoided unnecessary repetition, the mean test time that can make single motor is in 2 minutes;
(4) the utility model device adopts novel capacitive transducer, its measuring accuracy 0.002 μ m, the attitude error of bringing has only ± and 1.12 °, measuring accuracy improves 5 times than original, even attitude angle is less than 10 ° motor, test error also has only 10%, and test data is more reliable, repeatability is better, is fit to the test in enormous quantities of industrial-scale production.
Description of drawings
Fig. 1 is the vertical view of the utility model measurement mechanism;
Fig. 2 is the cut-open view of the utility model measurement mechanism;
Fig. 3 is the utility model measurement mechanism measuring process principle schematic.
Embodiment
As shown in Figure 1 and Figure 2, the utility model measurement mechanism is made up of dividing head connector 1, diameter of axle regulating block 2, axial compression piece 3, main support 5, wheelbase regulating block 6, sensor 7, sensor holder 8, sensor adjustment female 9 and dividing head 10.Dividing head connector 1, diameter of axle regulating block 2, main support 5, wheelbase regulating block 6 and sensor holder 8 are in the same place by screw retention, motor 4 to be measured is fixed on the diameter of axle regulating block 2 by axial compression piece 3, leaves dovetail groove on the face of diameter of axle regulating block 2 and axial compression piece 3 fixing motor 4 rotation axiss to be measured.Dividing head 10 is fixed on the main support 5 by dividing head connector 1, and electric notor 4 to be measured is coaxial with dividing head 10.Sensor adjustment mother 9 is connected in the axial location of sensor 7, is used to adjust the relative position of sensor 7 and motor 4 to be measured.The range of adjustment of diameter of axle regulating block 2 is 3mm～10mm, the range of adjustment of wheelbase regulating block 6 is 20mm～60mm, select suitable diameter of axle regulating block 2 and wheelbase regulating block 6 can make the diameter of axle of motor 4 to be measured and axial length be positioned at suitable test specification, thereby can make the utility model be applicable to different motors to be measured.
During measurement, adjusting dividing head 10 to indicated value is 0, require main support 5 to be adjusted to level simultaneously, sensor 7 is positioned at motor 4 clockwise 0 ° of direction to be measured, adjust distance between sensor 7 and motor to be measured 4 rotor outer surfaces, sensor 7 self is with a display screen, to show its distance in motor rotor outside surface to be measured, make its displayed value extremely within-100～+ 100, starting motor 4 to be measured makes it synchronous, wait for more than 2 minutes, adjust distance between sensor 7 and motor to be measured 4 rotor outer surfaces, the displayed value of its display screen is arrived between-30～+ 30 by sensor adjustment female 9, lock sensor regulates female 9, observe its displayed value no change in 1 minute, rotate measurement mechanism, respectively at 0 °, 90 °, 180 °, read respective measurement values C on 270 ° the position
0, C
90, C
180, C
270Shown in Fig. 3 measuring process schematic diagram, O is the center of stator among the figure, and O ' is a centre of rotor, the eccentric throw of rotor and stator when e is motor running.As shown in Figure 3, load (motor self gravitation) direction air film is changed to:
Be changed to perpendicular to load (motor self gravitation) direction air film:
Can get attitude angle by above two formulas:
If the rotor quality of motor is W, then the radial rigidity of motor (bearing rigidity) is:
For the purpose of accurately, reply Δ X and Δ Y value take multiple measurements (being not less than 5 times), get its mean value.
The content that is not described in detail in the utility model instructions belongs to those skilled in the art's known technology.
Claims (7)
1, outer rotor kinetic pressure air-float bearing of inner motor attitude angle and bearing rigidity test device is characterized in that comprising: diameter of axle regulating block (2), axial compression piece (3), main support (5), wheelbase regulating block (6) and sensor (7); Diameter of axle regulating block (2) is connected with main support (5) with wheelbase regulating block (6), diameter of axle regulating block (2) and axial compression piece (3) cooperation are fixed in motor to be measured (4) on the main support (5), and motor to be measured (4) is adjusted by wheelbase regulating block (6) with the relative position of sensor (7); Sensor (7) is connected in main support (5) and axial vertical with motor to be measured (4) by sensor holder (8).
2, outer rotor kinetic pressure air-float bearing of inner motor attitude angle according to claim 1 and bearing rigidity test device, it is characterized in that: also comprise the dividing head (10) that is used for accurately controlling described rotation axis rotational angle, dividing head (10) is connected on the rotation axis of motor to be measured (4) by dividing head connector (1).
3, outer rotor kinetic pressure air-float bearing of inner motor attitude angle according to claim 1 and 2 and bearing rigidity test device, it is characterized in that: also comprise the sensor adjustment mother (9) who is used to adjust sensor (7) and motor to be measured (4) relative position, sensor adjustment mother (9) is connected in the axial location of sensor (7).
4, outer rotor kinetic pressure air-float bearing of inner motor attitude angle according to claim 1 and 2 and bearing rigidity test device, it is characterized in that: described sensor (7) is a capacitive transducer, and its measuring accuracy is 0.002 μ m.
5, outer rotor kinetic pressure air-float bearing of inner motor attitude angle according to claim 1 and 2 and bearing rigidity test device is characterized in that: leave dovetail groove on the face of fixing motor to be measured (4) rotation axis of described diameter of axle regulating block (2) and axial compression piece (3).
6, outer rotor kinetic pressure air-float bearing of inner motor attitude angle according to claim 1 and 2 and bearing rigidity test device, it is characterized in that: the range of adjustment of described diameter of axle regulating block (2) is 3mm～10mm.
7, outer rotor kinetic pressure air-float bearing of inner motor attitude angle according to claim 1 and 2 and bearing rigidity test device, it is characterized in that: the range of adjustment of described wheelbase regulating block (6) is 20mm～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201096764U CN201242426Y (en) | 2008-08-07 | 2008-08-07 | Outer rotor kinetic pressure air-float bearing motor attitude angle and device for testing bearing angular rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201096764U CN201242426Y (en) | 2008-08-07 | 2008-08-07 | Outer rotor kinetic pressure air-float bearing motor attitude angle and device for testing bearing angular rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242426Y true CN201242426Y (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201096764U Expired - Lifetime CN201242426Y (en) | 2008-08-07 | 2008-08-07 | Outer rotor kinetic pressure air-float bearing motor attitude angle and device for testing bearing angular rigidity |
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| CN (1) | CN201242426Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852684A (en) * | 2010-05-24 | 2010-10-06 | 中国计量学院 | Performance testing device of static-pressure air bearing |
| CN103411764A (en) * | 2013-08-09 | 2013-11-27 | 北京航天控制仪器研究所 | Inner rotor type gyro motor testing device |
| CN105627900A (en) * | 2014-10-27 | 2016-06-01 | 湖南师范大学 | Automatic calibration device for current vortex sensor measuring wear loss of TBM hob |
| CN105699012A (en) * | 2016-02-04 | 2016-06-22 | 北京航天控制仪器研究所 | Gyro motor rotor radial mass center trajectory test device and method |
| CN112362271A (en) * | 2020-11-04 | 2021-02-12 | 陕西航天时代导航设备有限公司 | Dynamic pressure motor air film rigidity measurement tool |
| CN112857717A (en) * | 2021-01-25 | 2021-05-28 | 北京科技大学 | Vibration excitation method rigidity measurement tool and measurement method |
| CN117490952A (en) * | 2024-01-02 | 2024-02-02 | 迈为技术(珠海)有限公司 | Air bearing rigidity testing device |
-
2008
- 2008-08-07 CN CNU2008201096764U patent/CN201242426Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852684A (en) * | 2010-05-24 | 2010-10-06 | 中国计量学院 | Performance testing device of static-pressure air bearing |
| CN103411764A (en) * | 2013-08-09 | 2013-11-27 | 北京航天控制仪器研究所 | Inner rotor type gyro motor testing device |
| CN103411764B (en) * | 2013-08-09 | 2015-09-23 | 北京航天控制仪器研究所 | A kind of inner rotor type gyro motor proving installation |
| CN105627900A (en) * | 2014-10-27 | 2016-06-01 | 湖南师范大学 | Automatic calibration device for current vortex sensor measuring wear loss of TBM hob |
| CN105627900B (en) * | 2014-10-27 | 2018-08-14 | 湖南师范大学 | A kind of automatic calibration device measuring TBM hob abrasion amount current vortex sensor |
| CN105699012A (en) * | 2016-02-04 | 2016-06-22 | 北京航天控制仪器研究所 | Gyro motor rotor radial mass center trajectory test device and method |
| CN105699012B (en) * | 2016-02-04 | 2018-12-21 | 北京航天控制仪器研究所 | A kind of gyro motor rotor radial centroid trajectory test device and test method |
| CN112362271A (en) * | 2020-11-04 | 2021-02-12 | 陕西航天时代导航设备有限公司 | Dynamic pressure motor air film rigidity measurement tool |
| CN112857717A (en) * | 2021-01-25 | 2021-05-28 | 北京科技大学 | Vibration excitation method rigidity measurement tool and measurement method |
| CN117490952A (en) * | 2024-01-02 | 2024-02-02 | 迈为技术(珠海)有限公司 | Air bearing rigidity testing device |
| CN117490952B (en) * | 2024-01-02 | 2024-04-12 | 迈为技术(珠海)有限公司 | Air bearing rigidity testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING AEROSPACE FUYOU COMMUNICATION TECHNOLOGY D Free format text: FORMER OWNER: CHINA AEROSPACE TIMES ELECTRONICS CORPORATION THE 13TH INSTITUTE Effective date: 20140425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140425 Address after: 100854 No. 16, Haidian District, Beijing, Yuquanlu Road Patentee after: Beijing Aerospace rich communication technology development company Address before: 100854 Haidian District, Beijing, box 142, box office, 403 Patentee before: China Aerospace Times Electronics Corporation The 13th Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |