CN1948987A - Dynamic thrust and vertical force testing device of single side type linear induced motor - Google Patents
Dynamic thrust and vertical force testing device of single side type linear induced motor Download PDFInfo
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- CN1948987A CN1948987A CN 200610114577 CN200610114577A CN1948987A CN 1948987 A CN1948987 A CN 1948987A CN 200610114577 CN200610114577 CN 200610114577 CN 200610114577 A CN200610114577 A CN 200610114577A CN 1948987 A CN1948987 A CN 1948987A
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- slim
- electromagnet
- air gap
- vertical force
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Abstract
The invention discloses single side type straight line induction machine dynamical thrust and vertical force testing device. It includes guide rail part, suspended carriage, position transducer, air gap transducer set on the support. The connecting board of the guide rail part is connected with top plate and SLIM secondary by bolt. Two protective boards are fixed at the two sides of the connecting board by bolt. The two end sides of the suspended carriage spliced pole are respectively connected with the supporting board and base seat by bolt. Electromagnet, pure iron core, permanent magnet are glued to form mictomagnet on the two sides of the base seat. The SLIM secondary is connected with the support plate by bolt. The position transducer is fixed on one inner side of the protective board under the SLIM secondary by 10CM. The two air gap transducers are respectively fixed at the one end of the two sets of the electromagnet.
Description
Technical field
The present invention relates to single side type linear induction motor (SLIM) dynamic performance testing, particularly relate to the test of the linear electric motors dynamic property that is applied in the linear electric motors subway.
Background technology
The linear electric motors Rail Transit System worldwide is applied just more and more widely as a kind of novel City Rail Transit System.Along with since opening of many linear electric motors subways in the world successively determine to adopt the linear electric motors Rail Transit System with No. 4 lines of Guangzhou Underground and Beijing Olympic airport line, techniques of linear motor particularly SLIM technology just more and more is subjected to people's attention.
But for now, the performance test of SLIM does not also have unified standard in the world, and various countries or even each research institution all adopt different separately metering systems in the world.In the world the various test modes of SLIM are concluded at present and had problem: 1, aspect the dynamicthrust test, mostly adopt the wheel track supporting way to utilize the dynamicthrust characteristic of load method simulation SLIM or utilize acceleration method to calculate the dynamicthrust of linear electric motors according to the acceleration of motor, because the frictional resistance of wheel track, the dynamicthrust of motor just can't accurately be measured (Kyushu University also adopts the Teng Jing research department contactless mode to measure the dynamicthrust of SLIM, but can't measure the vertical force of SLIM); 2, aspect the vertical force test, generally be the electric current according to SLIM, parameters such as air gap are calculated by theoretical formula, do not see that up to the present one overlaps the device that can test the SLIM vertical force.In the linear electric motors subway, the vertical force of motor is a very important operational factor, and it can have influence on the installation strength of motor secondary plate and select factors such as running resistance calculating.And because the unknown of vertical force, if adopt the wheel track mode to be difficult to accurate measurement, so dynamicthrust also is difficult to accurately measure at the frictional resistance owing to wheel track aspect the dynamicthrust test.
Summary of the invention
Technical matters to be solved by this invention is: utilize magnetic suspension principle accurately to measure under the different air gap situation in the SLIM dynamicthrust easily by the one-to-one relationship of electric current and vertical force, calculate the size of vertical force.
Technical scheme of the present invention is as follows:
Single side type linear induction motor dynamicthrust and vertical force proving installation is characterized in that, this device comprises: rail sections, suspension dolly, position transducer and air gap sensor.
Described rail sections, it is connected into by top board, fender, web joint, SLIM level; Connection therebetween:
Web joint is connected two ends by screw with top board and SLIM level; Two block protection plates are arranged in the both sides of web joint, and the termination of its long right-angle side is connected with top-plate screw;
Described suspension dolly, it is elementary by SLIM, back up pad, electromagnet, joint pin, pure iron iron core, permanent magnet, base connect into; Connection therebetween:
The two ends of joint pin are connected with base with back up pad by screw respectively; Electromagnet, pure iron iron core, permanent magnet (11) stick with glue and are connected together, and constitute mictomagnet, and then stick with glue the both sides that are connected on base; Be connected on the back up pad with screw SLIM is elementary at last;
Described position transducer is fixed on the inboard of the fender of a side, 10cm place under SLIM the level, parallel placement with top board;
Described two air gap sensors are separately fixed at down 1.8cm place, two groups of electromagnet tops.
Beneficial effect of the present invention:
1. suspension system only needs very little suspension electric current when steady-state operation, can realize energy-conservation significantly.
2. realize the dynamicthrust of complete contactless test SLIM, so test result is more accurate.
3. the electromagnetic force that only need calculate electromagnet provides is just known the vertical force size of linear electric motors.
4. same set of device can be measured the SLIM of a lot of specifications, and is easy for installation.
5. the parameter that only need change control circuit just can be measured dynamicthrust and the vertical force of SLIM under the different air gap easily.
Description of drawings
Fig. 1 single side type linear induction motor dynamicthrust and vertical force proving installation structural representation.
Fig. 2 single side type linear induction motor dynamicthrust and vertical force proving installation rail sections B-B view.
Fig. 3 single side type linear induction motor dynamicthrust and vertical force proving installation rail sections front view.
Fig. 4 single side type linear induction motor dynamicthrust and the attached view of vertical force proving installation rail sections.
Fig. 5 single side type linear induction motor dynamicthrust and vertical force proving installation rail sections A-A view.
The D-D view of Fig. 6 magnetic levitation dolly.
The front view of Fig. 7 magnetic levitation dolly.
The C-C view of Fig. 8 magnetic levitation dolly.
The E-E view of Fig. 9 magnetic levitation dolly.
Master's view of Figure 10 base.
The F-F view of Figure 11 base.
The front view of the wiring layout of Figure 12 base and joint pin, back up pad.
The G-G view of the wiring layout of Figure 13 base and joint pin, back up pad.
The side view of the wiring layout of Figure 14 base and joint pin, back up pad.
The front view of Figure 15 support.
The vertical view of Figure 16 support.
The side view of Figure 17 support.
Figure 18 suspension system control block diagram.
Among the figure: top board 1, fender 2, web joint 3; the single side type linear induction motor is secondary 4, position transducer 5, single side type linear induction motor elementary 6; back up pad 7, electromagnet 8, joint pin 9; pure iron iron core 10, permanent magnet 11; base 12, air gap sensor 13, support 14; suspension air gap 15, linear electric motors air gap 16.
Embodiment
With the accompanying drawing is that the invention will be further described for embodiment:
The present invention utilizes magnetic suspension principle that the single side type linear induction motor is carried out complete contactless test, measures the dynamicthrust and the vertical force of motor simultaneously.
The technical scheme of single side type linear induction motor dynamicthrust and vertical force proving installation: this device comprises: rail sections, suspension dolly, position transducer 5, air gap sensor 13 and support 14.
Described rail sections is seen Fig. 1～5, and it is formed by connecting by top board 1, fender 2, web joint 3, SLIM level 4.Connect therebetween:
Described suspension dolly is seen Fig. 6～14, and it is elementary 6 by SLIM, back up pad 7, electromagnet 8, joint pin 9, pure iron iron core 10, permanent magnet 11, base 12 connect into.See Fig. 6～14, connection therebetween:
The two ends of joint pin 9 are connected with base 12 with back up pad 7 by screw respectively; Electromagnet 8, pure iron iron core 10, permanent magnet 11 stick with glue and are connected together, and constitute mictomagnet, and then stick with glue the both sides that are connected on base 12; At last the elementary 6 usefulness screws of SLIM are connected on the back up pad 7, the mounting hole design of SLIM elementary 6 is pressed in the threaded hole position of back up pad 7.
Described position transducer 5 is fixed on the inboard of the fender 2 of a side, 10CM place under SLIM the level 4, parallel placement with top board.
Described two air gap sensors 13 are separately fixed at an end of electromagnet 8 in two groups of mictomagnets, the 1.8cm place down on electromagnet 8 tops.
The air gap 16 of single side type linear induction motor is 4～8mm, and suspension air gap 15 is 12～16mm
The step of the dynamicthrust of single side type linear induction motor and vertical force test:
At first set SLIM air gap value to be measured, the magnetic levitation dolly is adjusted to corresponding position (being that suspension air gap is that linear electric motors air gap value adds 8mm), power on for then the mictomagnet of forming by electromagnet and permanent magnet, control the electric current of electromagnet 8 by DSP, utilize the electromagnetic attraction of mix suspending magnet to make whole suspension dolly stable suspersion (promptly deciding air gap suspends).Give SLIM elementary 6 energisings then, after SLIM starts, can produce certain vertical force, the weight of the dolly that is equivalent to suspend changes, and suspension air gap has and becomes trend big or that diminish.System goes out this trend by current sensor and air gap sensor, pass through signal processing circuit and filtering circuit then, AD signal processing circuit by the DSP control panel is converted to digital quantity to analog quantity again, through on the CPU of DSP, calculating, change the pwm pulse of DSP programming controller output, the pulse width that changes the chopper of control electromagnet current through interface, interlock circuit is the size of dutycycle again, makes suspension dolly stable suspersion under constant air gap and change by current of electromagnet.This moment, the suspension electric current electromagnetic attraction variation of being produced of electromagnet was exactly the variation of SLIM vertical force.Meanwhile, calculate the acceleration change of SLIM, and then calculate the dynamicthrust variation of SLIM by the position transducer 5 that is installed on the fender 2.
Claims (1)
1. single side type linear induction motor dynamicthrust and vertical force proving installation is characterized in that, this device comprises: rail sections, suspension dolly, position transducer (5) and air gap sensor (13);
Described rail sections, it is connected into by top board (1), fender (2), web joint (3), SLIM level (4); Connection therebetween:
Web joint (3) is connected two ends by screw with top board (1) and SLIM level (4); Two block protection plates (2) are arranged in the both sides of web joint (3), and the termination of its long right-angle side is connected with top board (1) screw;
Described suspension dolly, it is connected into by SLIM elementary (6), back up pad (7), electromagnet (8), joint pin (9), pure iron iron core (10), permanent magnet (11), base (12); Connection therebetween:
The two ends of joint pin (9) are connected with base (12) with back up pad (7) by screw respectively; Electromagnet (8), pure iron iron core (10), permanent magnet (11) stick with glue and are connected together, and constitute mictomagnet, and then stick with glue the both sides that are connected on base (12); At last SLIM elementary (6) is connected on the back up pad (7) with screw;
Described position transducer (5) is fixed on the inboard of the fender (2) of a side, 10CM place under SLIM the level (4), parallel placement with top board;
Described two air gap sensors (13) are separately fixed at down 1.8CM place, two groups of electromagnet (8) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610114577 CN1948987A (en) | 2006-11-16 | 2006-11-16 | Dynamic thrust and vertical force testing device of single side type linear induced motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610114577 CN1948987A (en) | 2006-11-16 | 2006-11-16 | Dynamic thrust and vertical force testing device of single side type linear induced motor |
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| Publication Number | Publication Date |
|---|---|
| CN1948987A true CN1948987A (en) | 2007-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610114577 Pending CN1948987A (en) | 2006-11-16 | 2006-11-16 | Dynamic thrust and vertical force testing device of single side type linear induced motor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323552A (en) * | 2011-09-16 | 2012-01-18 | 东南大学 | Electromagnetic thrust measuring device for linear motor |
| CN103112362A (en) * | 2013-02-28 | 2013-05-22 | 南车株洲电力机车有限公司 | System and method for designing linear motor of magnetic-levitation train |
| CN103424222A (en) * | 2013-08-05 | 2013-12-04 | 西南交通大学 | Testing device for multidirectional dynamic force of medium and small sized linear motors |
| CN106950496A (en) * | 2017-03-20 | 2017-07-14 | 湖南中通电气股份有限公司 | A kind of linear asynchronous tractive motor hanging simulation test device of track traffic |
| CN107207196A (en) * | 2015-02-04 | 2017-09-26 | 奥的斯电梯公司 | Elevator device apparatus for evaluating |
| CN109341920A (en) * | 2018-10-10 | 2019-02-15 | 珠海格力电器股份有限公司 | Linear motor normal direction force checking device |
| CN109870261A (en) * | 2019-03-01 | 2019-06-11 | 西北工业大学 | A kind of lower resistance magnetic suspension platform for microdriver thrust measurement |
| WO2019162001A1 (en) * | 2018-02-26 | 2019-08-29 | Krones Ag | Method and device for adjusting a transport vehicle for a container-handling system |
| CN110243524A (en) * | 2019-07-15 | 2019-09-17 | 西南交通大学 | A kind of three-axis force performance testing device of high thrust superconducting linear motor |
| CN112230145A (en) * | 2020-10-16 | 2021-01-15 | 中车永济电机有限公司 | Rotation test device for modular linear induction motor |
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2006
- 2006-11-16 CN CN 200610114577 patent/CN1948987A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323552A (en) * | 2011-09-16 | 2012-01-18 | 东南大学 | Electromagnetic thrust measuring device for linear motor |
| CN103112362A (en) * | 2013-02-28 | 2013-05-22 | 南车株洲电力机车有限公司 | System and method for designing linear motor of magnetic-levitation train |
| CN103424222A (en) * | 2013-08-05 | 2013-12-04 | 西南交通大学 | Testing device for multidirectional dynamic force of medium and small sized linear motors |
| CN103424222B (en) * | 2013-08-05 | 2015-06-03 | 西南交通大学 | Testing device for multidirectional dynamic force of medium and small sized linear motors |
| CN107207196A (en) * | 2015-02-04 | 2017-09-26 | 奥的斯电梯公司 | Elevator device apparatus for evaluating |
| CN106950496A (en) * | 2017-03-20 | 2017-07-14 | 湖南中通电气股份有限公司 | A kind of linear asynchronous tractive motor hanging simulation test device of track traffic |
| WO2019162001A1 (en) * | 2018-02-26 | 2019-08-29 | Krones Ag | Method and device for adjusting a transport vehicle for a container-handling system |
| US11904700B2 (en) | 2018-02-26 | 2024-02-20 | Krones Ag | Method and device for adjusting a transport vehicle for a container-handling system |
| CN109341920A (en) * | 2018-10-10 | 2019-02-15 | 珠海格力电器股份有限公司 | Linear motor normal direction force checking device |
| CN109870261B (en) * | 2019-03-01 | 2020-11-03 | 西北工业大学 | Low-resistance magnetic suspension platform for measuring thrust of micro propeller |
| CN109870261A (en) * | 2019-03-01 | 2019-06-11 | 西北工业大学 | A kind of lower resistance magnetic suspension platform for microdriver thrust measurement |
| CN110243524A (en) * | 2019-07-15 | 2019-09-17 | 西南交通大学 | A kind of three-axis force performance testing device of high thrust superconducting linear motor |
| CN110243524B (en) * | 2019-07-15 | 2024-04-05 | 西南交通大学 | Triaxial force performance testing device of high-thrust superconducting linear motor |
| CN112230145A (en) * | 2020-10-16 | 2021-01-15 | 中车永济电机有限公司 | Rotation test device for modular linear induction motor |
| CN112230145B (en) * | 2020-10-16 | 2024-04-19 | 中车永济电机有限公司 | Modularized linear induction motor rotation test device |
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Open date: 20070418 |