CN102221649B - Dynamic tester for magnetic driver - Google Patents
Dynamic tester for magnetic driver Download PDFInfo
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- CN102221649B CN102221649B CN 201010145701 CN201010145701A CN102221649B CN 102221649 B CN102221649 B CN 102221649B CN 201010145701 CN201010145701 CN 201010145701 CN 201010145701 A CN201010145701 A CN 201010145701A CN 102221649 B CN102221649 B CN 102221649B
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Abstract
The invention discloses a dynamic tester for a magnetic driver, which relates to a dynamic tester, and belongs to the field of modern magnetism magnetic drive. The dynamic tester comprises an electric motor, a first group of couplers, a second group of couplers, a torque-speed sensor, a torque-speed sensor instrument, a first angular speed sensor, a second angular speed sensor, a first counter gear, a second counter gear, a signal processor and a magnetic powder brake. Photoelectric type angular speed sensors are adopted as the first angular speed sensor and the second angular speed sensor; both shells of the first angular speed sensor and the second angular speed sensor are fixed on a test-bed; a central shaft is driven to rotate by a gear; the first angular speed sensor and the second angular speed sensor respectively transmit a scale signal to the signal processor through a data line; and then the signal is processed by the signal processor to obtain the relative rotating angles of an inner magnetic rotor and an outer magnetic rotor. The dynamic property curve precision of the magnetic driver can be improved; and moreover, the cost of the dynamic tester for the magnetic driver can be reduced.
Description
Technical field
The present invention relates to dynamic checkout unit, particularly a kind of dynamic tester for magnetic driver belongs to modern magnetics magnetically-actuated field.
Background technology
Magnetically-actuated is the basic theories with modern magnetics, uses the magneticaction that permanent magnetic material or electromagnet produce, and comes a kind of new technology of realizable force or non contact transmission.Magnetically-actuated and mechanically operated fundamental difference point, when being it to the drive disk assembly transmitting torque, the external world is connected with the feed rod of medium contact discord, but utilizes magnetic field to see through the thin-walled transmitting torque of magnetic circuit working clearance or spacer sleeve.
in prior art, dynamic tester for magnetic driver adopts structure as shown in Figure 1 more, actuating motor 2 and teslameter 9, at this moment drive torque speed sensor 4 by first group of shaft coupling 3, outer magnet rotor 6, interior magnet rotor 8, second group of shaft coupling 10, load generator 11 entry into service in succession, the first angular transducer 1 and the second angular transducer 12 entrys into service simultaneously, meanwhile torque speed sensor instrument 5 begins to show data, at this moment, obtain a series of torque value and corresponding relative rotation value by the load of regulating power supply load cabinet 13, the magnetic induction density value, thereby pass through signal processor 7 with this a series of torque value, relative rotation value and magnetic induction density value formation characteristic curve.in this structure, teslameter 9 is the magnetic induction density values that detect between outer magnet rotor 6 and interior magnet rotor 8, the first angular transducer 1 and the second angular transducer 12 are relative rotation values of outer magnet rotor 6 and interior magnet rotor 8 when detecting the instantaneous starting motor and regulating the load of power supply load cabinet, but as shown in Figure 2, owing to only having the gap of 45mm between outer magnet rotor 6 and interior magnet rotor 8, make the first angular transducer 1 and the second angular transducer 12 there is no wiring and installing space, so mostly adopted this structure of Fig. 1, be about to the tail end coaxial rotating that the first angular transducer 1 is arranged on motor 2, the second angular transducer 12 is arranged on the tail end coaxial rotating of load generator 11, the outer magnet rotor 6 that such structure has caused detecting increases with the error of interior magnet rotor 8 relative rotations, since the errors of the first angular transducer 1 and the second angular transducer 12 itself just have ± 0.5%, add torque speed sensor 4, first group of shaft coupling 3, second group of shaft coupling 10, the errors of motor 2 and load generator 11 itself make the error of the relative angle value that collects be far longer than ± 1%, and motor 4 and load generator 14 needs manufacturer to make one section axle the first angular transducer 1 and the second angular transducer 12 are installed tail end is special, so greatly increased the cost of dynamic tester for magnetic driver, power supply load cabinet 13 is that 11, regulating load generator is load-carrying, this load value directly affects the torque value that collects, and 13 employings of power supply load cabinet is bulb device, the speed degree of heat radiation is not different simultaneously in indoor temperature due to bulb, thereby measuring accuracy has been brought certain impact, finally make the magnetic driver Dynamic Measuring Error increase.
Summary of the invention
To the present invention seeks to the relative rotation error problems of too of avoiding detecting interior magnet rotor and outer magnet rotor in order solving, and to solve and avoid load regulation to be subjected to the problem of external environment influence.Disclosed by the invention a kind of for dynamic tester for magnetic driver, guaranteed the accuracy of magnetic driver dynamic characteristic, reduced the cost of dynamic tester for magnetic driver.
outstanding improvement characteristics of the present invention are: (1) is excessive for fear of the error of the outer magnet rotor that detects and interior magnet rotor relative rotation, replace angular transducer with angular-rate sensor, and respectively fill an angular-rate sensor at interior magnet rotor and outer magnet rotor end, the angular velocity of magnet rotor and outer magnet rotor in detecting respectively, the signal decomposition that angular-rate sensor can often rotate a circle interior magnet rotor and outer magnet rotor is 2048 scales, corresponding 0.1758 ° of each scale, namely 360 °/2048=0.1758 °, angular-rate sensor passes to signal according to processor with the scale signal by data line, by signal processor, the scale that two angular-rate sensors record is subtracted each other, and then subtraction value be multiply by 0.1758 °, the interior magnet rotor of the reality that records exactly and the relative rotation of outer magnet rotor, like this error only have ± 0.05%, thereby the relative rotation error of the interior magnet rotor that reduces to detect and outer magnet rotor, make the magnetic driver dynamic characteristic more accurate, and need not special the manufacturing of motor and load generator manufacturer, saved the cost of package unit, (2) be subjected to the impact of external environment condition for fear of load regulation, replace load generator and power supply load cabinet with magnetic powder brake, the magnetic powder brake output load is only relevant with the exciting current of this magnetic powder brake, be not subjected to external environment influence, namely when the regulating load value, only need to regulate exciting current, this adjustment process is easy to operate, and because load regulation is not subjected to other external environment influence, and then can improve the precision of magnetic driver dynamic characteristic.
The present invention is achieved through the following technical solutions:
a kind of dynamic tester for magnetic driver disclosed by the invention comprises motor, first group of shaft coupling, second group of shaft coupling, torque speed sensor, torque speed sensor instrument, teslameter, it also comprises the first angular-rate sensor, the second angular-rate sensor, the first pair of gear, the second pair of gear, signal processor, magnetic powder brake, wherein: the first angular-rate sensor and the second angular-rate sensor are all selected the photo-electric angular-rate sensor, the shell of the first angular-rate sensor and the second angular-rate sensor all is fixed on testing table, its central shaft is rotated by gear driven, the signal decomposition that the first angular-rate sensor and the second angular-rate sensor often rotate a circle outer magnet rotor and interior magnet rotor respectively is 2048 scales, corresponding 0.1758 ° of each scale, namely 360 °/2048=0.1758 °, the first angular-rate sensor and the second angular-rate sensor pass to signal processor with the scale signal by data line respectively, first pair of gear is identical with the ratio of gear of second pair of gear, magnetic powder brake adopts the form of manual adjustments exciting current.Peripherals is included as the electrical power control cabinet that motor provides power supply.
Their annexation is: motor reel stretches out end by first group of shaft coupling and coaxial connection of torque speed sensor one end, the other end of torque speed sensor is by key and coaxial connection of outer magnet rotor one end, in torque speed sensor and outer magnet rotor junction by coaxial connection of gear wheel in key and first pair of gear, pinion wheel engagement in gear wheel in the first pair of gear and the first pair of gear, pinion wheel in the first pair of gear is connected by key is coaxial with the central shaft of the first angular-rate sensor, and the shell of the first angular-rate sensor is fixed on testing table; Interior magnet rotor one end is connected with magnetic powder brake is coaxial by second group of shaft coupling, in interior magnet rotor and second group of shaft coupling junction by coaxial connection of gear wheel in key and second pair of gear, pinion wheel engagement in gear wheel in the second pair of gear and the second pair of gear, pinion wheel in the second pair of gear is connected by key is coaxial with the central shaft of the second angular-rate sensor, and the shell of the second angular-rate sensor is fixed on testing table; Teslameter is fixed on testing table, and its probe segment is placed in the gap of outer magnet rotor and interior magnet rotor; The first angular-rate sensor, the second angular-rate sensor, teslameter, torque speed sensor are passed to signal processor by data line with signal, and signal processor is through processing output characteristic curve.
The course of work of the present invention is:
Step 1: actuating motor moment, drive successively torque speed sensor, the first pair of gear, outer magnet rotor, interior magnet rotor, the second pair of gear, second group of shaft coupling, magnetic powder brake entry into service in succession by first group of shaft coupling; First pair of gear driven the first angular-rate sensor rotates the beginning output signal simultaneously, second pair of gear driven the second angular-rate sensor rotates the beginning output signal, the signal decomposition that the first angular-rate sensor and the second angular-rate sensor often rotate a circle outer magnet rotor and interior magnet rotor respectively is 2048 scales, corresponding 0.1758 ° of each scale, the first angular-rate sensor and the second angular-rate sensor pass to signal processor with the scale signal that collects; By signal processor, the scale that the first angular-rate sensor and the second angular-rate sensor record is subtracted each other again, and then this subtraction value be multiply by 0.1758 °, this value is exactly the interior magnet rotor of the reality that records and the relative rotation of outer magnet rotor, the relative rotation error can be controlled at ± 0.05% in; Meanwhile teslameter, torque speed sensor are passed to signal processor by data line with signal, have so just completed a signal acquisition process process;
Step 2: change test condition by the exciting current of regulating the magnetic powder brake that is not subjected to external environment influence, the signal acquisition process process in repeating step one, and then gather a series of torque value and corresponding relative rotation value, magnetic induction density value; Thereby by signal processor with this a series of torque value, relative rotation value and magnetic induction density value formation characteristic curve; Until draw satisfied test result, finish whole test process.
Beneficial effect:
(1) in prior art, wiring and installing space problem due to the first angular transducer and the second angular transducer, make the first angular transducer be arranged on the tail end of motor, the second angular transducer is arranged on the tail end of load generator, cause the inside and outside magnet rotor relative rotation error that records to increase, and package unit is manufactured the cost increasing; In the present invention, replace angle sensor structure with angular-rate sensor, avoided wiring and installing space problem, reduced the inside and outside magnet rotor relative rotation error that records, and greatly reduce the cost of package unit.
(2) in prior art, power supply load cabinet is that regulating load generator institute is load-carrying, what this power supply load cabinet adopted is bulb device, the speed degree of heat radiation is not different simultaneously in indoor temperature due to bulb, thereby measuring accuracy has been brought certain impact, finally make the magnetic driver Dynamic Measuring Error increase; In the present invention, replace load generator and power supply load cabinet with magnetic powder brake, be not subjected to external environment influence, easy to operate, further improved the accuracy of magnetic driver dynamic characteristic, for the Research on Dynamic Characteristic of magnetic driver has from now on been established solid foundation.
Description of drawings
Fig. 1 is dynamic tester for magnetic driver one-piece construction figure in prior art;
Fig. 2 is the installation sectional view of prior art China and foreign countries' magnet rotor and interior magnet rotor;
Fig. 3 is dynamic tester for magnetic driver one-piece construction figure of the present invention;
Fig. 4 is the partial enlarged drawing of dynamic tester for magnetic driver vertical view of the present invention;
wherein: 1-the first angular transducer, the 2-motor, first group of shaft coupling of 3-, the 4-torque speed sensor, 5-torque speed sensor instrument, the outer magnet rotor of 6-, the 7-signal processor, magnet rotor in 8-, the 9-teslameter, second group of shaft coupling of 10-, the 11-load generator, 12-the second angular transducer, 13-power supply load cabinet, the 14-magnetic powder brake, 15-the first angular-rate sensor, first pair of gear of 16-, second pair of gear of 17-, 18-the second angular-rate sensor, the 19-testing table.
Concrete embodiment
The present invention is further illustrated below in conjunction with description of drawings and embodiment:
As shown in Figure 3, a kind of dynamic tester for magnetic driver disclosed by the invention, comprise motor 2, first group of shaft coupling 3, second group of shaft coupling 10, torque speed sensor 4, torque speed sensor instrument 5, teslameter 9, it also comprises the first angular-rate sensor 15, the second angular-rate sensor 18, the first pair of gear 16, the second pair of gear 17, magnetic powder brake 14, signal processor 7; Wherein, the first angular-rate sensor 15 and the second angular-rate sensor 18 are all selected the photo-electric angular-rate sensor.As shown in Figure 4, the shell of the first angular-rate sensor 15 and the second angular-rate sensor 18 all is fixed on testing table 19, central shaft is rotated by gear driven, the signal decomposition that the first angular-rate sensor 15 and the second angular-rate sensor 18 often rotate a circle outer magnet rotor 6 and interior magnet rotor 8 respectively is 2048 scales, corresponding 0.1758 ° of unit scales, the first angular-rate sensor 15 and the second angular-rate sensor 18 pass to signal processor 7 with the scale signal respectively; First pair of gear 16 is identical with the ratio of gear of second pair of gear 17; Magnetic powder brake 14 adopts the form of manual adjustments exciting current.Peripherals is included as the electrical power control cabinet that motor 2 provides power supply.
their annexation is: motor 2 axle external parts are by first group of shaft coupling 3 and coaxial connection of torque speed sensor 4 one ends, the other end of torque speed sensor 4 is by key and coaxial connection of outer magnet rotor 6 one ends, in torque speed sensor 4 and outer magnet rotor 6 junctions by coaxial connection of gear wheel in key and first pair of gear 16, pinion wheel engagement in gear wheel in the first pair of gear 16 and the first pair of gear 16, in the first pair of gear, 16 pinion wheel is connected by key is coaxial with the first angular-rate sensor 15, the first angular-rate sensor 15 is fixing by testing table 19, interior magnet rotor 8 one ends are connected with magnetic powder brake 14 is coaxial by second group of shaft coupling 10, in interior magnet rotor 8 and second group of shaft coupling 10 junction by coaxial connection of gear wheel in key and second pair of gear 17, pinion wheel engagement in gear wheel in the second pair of gear 17 and the second pair of gear 17, pinion wheel in the second pair of gear 17 is connected by key is coaxial with the second angular-rate sensor 18, the second angular-rate sensor 18 is fixing by testing table 19, teslameter 9 is fixed on testing table 19, its probe segment is placed in the gap of outer magnet rotor 6 and interior magnet rotor 8, the first angular-rate sensor 15, the second angular-rate sensor 18, teslameter 9 and torque speed sensor 4 are passed to signal processor 7 by data line with signal respectively, signal processor 7 is through processing output characteristic curve.
The course of work of the present invention is:
Step 1: 2 moments of actuating motor, drive successively torque speed sensor 4, the first pair of gear 16, outer magnet rotor 6, interior magnet rotor 8, the second pair of gear 17, second group of shaft coupling 10, magnetic powder brake 14 entry into service in succession by first group of shaft coupling 3; First pair of gear 16 drives the first angular-rate sensor 15 and rotates the beginning output signal simultaneously, second pair of gear 17 drives the second angular-rate sensor 18 and rotates the beginning output signal, the signal decomposition that the first angular-rate sensor 15 and the second angular-rate sensor 18 often rotate a circle outer magnet rotor 6 and interior magnet rotor 8 respectively is 2048 scales, corresponding 0.1758 ° of each scale, the first angular-rate sensor 15 and the second angular-rate sensor 18 pass to signal processor 7 with the scale signal that collects; By signal processor 7, the scale that the first angular-rate sensor 15 and the second angular-rate sensor 18 record is subtracted each other again, and then this subtraction value be multiply by 0.1758 °, this value is exactly the interior magnet rotor 8 of the reality that records and the relative rotation of outer magnet rotor 6, the relative rotation error can be controlled in ± 0.05% in; Meanwhile teslameter 9, torque speed sensor 4 are passed to signal processor 7 by data line with signal, have so just completed a signal acquisition process process;
Step 2: change test condition by the exciting current of regulating the magnetic powder brake 14 that is not subjected to external environment influence, the signal acquisition process process in repeating step one, and then gather a series of torque value and corresponding relative rotation value, magnetic induction density value; Thereby pass through signal processor 7 with this a series of torque value, relative rotation value and magnetic induction density value formation characteristic curve; Until draw satisfied test result, finish whole test process.
Protection domain of the present invention not only is confined to the present embodiment, and the present embodiment be used for to be explained the present invention, all changes under same principle and design condition or revise all within protection domain disclosed by the invention with the present invention.
Claims (3)
1. a dynamic tester for magnetic driver, comprise motor (2), first group of shaft coupling (3), second group of shaft coupling (10), torque speed sensor (4), torque speed sensor instrument (5), teslameter (9), peripherals is included as the electrical power control cabinet that motor provides power supply, it is characterized in that: it also comprises outer magnet rotor (6), interior magnet rotor (8), the first angular-rate sensor (15), the second angular-rate sensor (18), first pair of gear (16), second pair of gear (17), signal processor (7), magnetic powder brake (14), the first angular-rate sensor (15) and the second angular-rate sensor (18) are all selected the photo-electric angular-rate sensor, the shell of the first angular-rate sensor (15) and the second angular-rate sensor (18) all is fixed on testing table (19), central shaft is rotated by gear driven, the signal decomposition that the first angular-rate sensor (15) and the second angular-rate sensor (18) often rotate a circle outer magnet rotor (6) and interior magnet rotor (8) respectively is 2048 scales, corresponding 0.1758 ° of each scale, namely 360 °/2048=0.1758 °, the first angular-rate sensor (15) and the second angular-rate sensor (18) pass to signal processor (7) with the scale signal by data line respectively, first pair of gear (16) is identical with the ratio of gear of second pair of gear (17),
their annexation is: end is coaxial is connected by first group of shaft coupling (3) and torque speed sensor (4) for motor (2) axle external part, end is coaxial is connected by first key and outer magnet rotor (6) for the other end of torque speed sensor (4), in torque speed sensor (4) and outer magnet rotor (6) junction by coaxial connection of gear wheel in first key and first pair of gear (16), pinion wheel engagement in gear wheel in first pair of gear (16) and first pair of gear (16), pinion wheel in first pair of gear (16) is connected by the second key is coaxial with the central shaft of the first angular-rate sensor (15), the shell of the first angular-rate sensor (15) is fixed on testing table (19), interior magnet rotor (8) passes through second group of shaft coupling (10) and coaxial connection of magnetic powder brake (14) near an end of teslameter (9), in interior magnet rotor (8) and second group of shaft coupling (10) junction by coaxial connection of gear wheel in triple bond and second pair of gear (17), pinion wheel engagement in gear wheel in second pair of gear (17) and second pair of gear (17), pinion wheel in second pair of gear (17) is connected by quadruple linkage is coaxial with the central shaft of the second angular-rate sensor (18), the shell of the second angular-rate sensor (18) is fixed on testing table (19), outer magnet rotor (6) is coated on the outside of interior magnet rotor (8), the exciting current of magnetic powder brake (14) can be conditioned to change test condition, teslameter (9) is fixed on testing table (19), and its probe segment is placed in the gap of outer magnet rotor (8) and interior magnet rotor (6), the first angular-rate sensor (15), the second angular-rate sensor (18), teslameter (9), torque speed sensor (4) are passed to signal processor (7) by data line with signal respectively, and signal processor (7) is through processing output characteristic curve.
2. a kind of dynamic tester for magnetic driver according to claim 1 is characterized in that its specific works process is:
Step 1: actuating motor (2) moment, drive successively torque speed sensor (4), first pair of gear (16), outer magnet rotor (6), interior magnet rotor (8), second pair of gear (17), second group of shaft coupling (10), magnetic powder brake (14) entry into service in succession by first group of shaft coupling (3); First pair of gear (16) drives the first angular-rate sensor (15) and rotates the beginning output signal simultaneously, second pair of gear (17) drives the second angular-rate sensor (18) and rotates the beginning output signal, the signal decomposition that the first angular-rate sensor (15) and the second angular-rate sensor (18) often rotate a circle outer magnet rotor (6) and interior magnet rotor (8) respectively is 2048 scales, corresponding 0.1758 ° of each scale, the first angular-rate sensor (15) and the second angular-rate sensor (18) pass to signal processor (7) with the scale signal that collects; By signal processor (7), the scale that the first angular-rate sensor (15) and the second angular-rate sensor (18) record is subtracted each other again, and then this subtraction value be multiply by 0.1758 °, this value is exactly the interior magnet rotor (8) of the reality that records and the relative rotation of outer magnet rotor (6), the relative rotation error can be controlled in ± 0.05% in; Meanwhile teslameter (9), torque speed sensor (4) are passed to signal processor (7) by data line with signal, have so just completed a signal acquisition process process;
Step 2: change test condition by the exciting current of regulating the magnetic powder brake (14) that is not subjected to external environment influence, signal acquisition process process in repeating step one, and then gather a series of torque value and corresponding relative rotation value, magnetic induction density value; Thereby pass through signal processor (7) with this a series of torque value, relative rotation value and magnetic induction density value formation characteristic curve; Until draw satisfied test result, finish whole test process.
3. a kind of dynamic tester for magnetic driver according to claim 1 and 2, it is characterized in that: magnetic powder brake (14) adjusting form is selected the form of manual adjustments exciting current.
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| CN 201010145701 CN102221649B (en) | 2010-04-14 | 2010-04-14 | Dynamic tester for magnetic driver |
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| CN 201010145701 CN102221649B (en) | 2010-04-14 | 2010-04-14 | Dynamic tester for magnetic driver |
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| CN102221649B true CN102221649B (en) | 2013-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104374940A (en) * | 2014-09-24 | 2015-02-25 | 昆山腾朗电子有限公司 | Gear angular velocity measuring device |
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| CN102645272A (en) * | 2012-05-17 | 2012-08-22 | 广西工学院 | Gear noise testing platform |
| CN104569647B (en) * | 2014-05-06 | 2019-01-25 | 苏州伟创电气设备技术有限公司 | The test macro and its method of frequency converter performance |
| CN104950255B (en) * | 2015-06-12 | 2019-02-01 | 山东省产品质量监督检验研究院 | A kind of motor load device |
| CN106596097A (en) * | 2016-12-26 | 2017-04-26 | 山东大学 | Magnetic actuator performance test device for wave energy generating device |
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