CN105738083A - Electromagnet testing device - Google Patents
Electromagnet testing device Download PDFInfo
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- CN105738083A CN105738083A CN201410745355.3A CN201410745355A CN105738083A CN 105738083 A CN105738083 A CN 105738083A CN 201410745355 A CN201410745355 A CN 201410745355A CN 105738083 A CN105738083 A CN 105738083A
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Abstract
The invention relates to an electromagnet testing device, which can realize electromagnet static performance and dynamic performance test. A static performance device comprises a precision displacement adjusting device, an orientating and locking device, a force test and strutting device, an electromagnet fixing device and a displacement test device, and can obtain electromagnet static characteristics in different strokes. Based on the electromagnet static device performance device, a dynamic performance test device is partially improved by providing a pretightening force loading device. The pretightening force loading device comprises a support bar, a spring, a loading rod and a third straight bearing, wherein the third straight bearing provides straight-line guidance for the loading rod; the loading rod can move left and right in the support bar; the spring performs compression or stretch under the relative displacement between the support bar and the loading rod, and generates required pretightening force, thereby obtaining electromagnet dynamic characteristics under different pretightening force.
Description
Technical field
The present invention relates to a kind of electric magnet test device, especially relate to one and have at high speed, in high precision, little stroke (being generally less than 2mm), the static state of specifications for electrical Magnet, the dynamic performance and testing such as small-sized.
Background technology
Along with the needs in the field such as development and Aero-Space, electronics, machine-building of modern society's digital integrated electronic circuit technology, the application of high-speed electro-magnet is more and more extensive.Electric magnet is the multidisciplinary product of an electricity, magnetic, machine, integration is stronger, have become as the core technology of solid appearance, precise tracking, the quality of its static properties and dynamic property is very big on the impact of electromotor total system scheme, subversiveness problem may be produced time serious, therefore the static properties of electric magnet and dynamic property are carried out test and be very important.
Electric magnet test device from starting so far, mainly experienced by two stages: manual test, record stage and computer-aided test stage.In recent years, both at home and abroad the research of electromagnet performance testing device not being interrupted always, along with the development of science and technology, method of testing and test function are continuously available improvement.
Chinese utility model patent description CN203630245U discloses such a proportion electro-magnet and spring ability meter, this proportion electro-magnet and spring ability meter include a mounting base, mounting base is installed electronic control translation stage, displacement transducer, force transducer and test fixture, and is furnished with automatically controlled test system unit device；Electronic control translation stage, force transducer and test fixture order be arranged on same axially, wherein force transducer is arranged on moveable platform and can move with it, and the orientation of side head of this force transducer is corresponding with the orientation of the extension bar of proportion electro-magnet or tested spring；Displacement transducer is placed on test fixture, and its gauge head is connected with force transducer, and test fixture is that two-way choice is by piece fixture.But this test device is not particularly suited for having at high speed, in high precision, the electric magnet of little stroke (being generally less than 2mm), the feature such as small-sized, and the type electromagnet performance test needs a kind of convenient static properties test device adjusting different stroke, and need a kind of convenient dynamic performance and testing adjusting different pretightning force.
The electric magnet that solid appearance, precise tracking need generally has at high speed, in high precision, little stroke, the feature such as small-sized, and currently for the type electric magnet, still lack simple and effective static properties and dynamic performance testing means, constrain electric magnet research and development process to a certain extent.Therefore no matter it is the structural design optimization to the type electric magnet and the exploratory development of control method, or to the checking of its characteristic mathematical model and correction, industry be required for a kind of for having at high speed, in high precision, the performance testing device of the specifications for electrical Magnet such as little stroke.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electric magnet easy to operate, simple in construction and tests device, this device for having at high speed, in high precision, the electric magnet of the feature such as little stroke, the type electric magnet static characteristic under different strokes can be obtained, such as power-stroke characteristic, power-current characteristics etc..
The present invention another to solve the technical problem that and be to provide a kind of reliable and stable, electric magnet dynamic performance and testing that precision is high, this device for having at high speed, in high precision, the electric magnet of the feature such as little stroke, the type electric magnet dynamic characteristic under different pretightning forces can be obtained, such as stroke-time response, current-time characteristic etc..
Electric magnet static properties for the present invention tests device, and this device includes accurate displacement and regulates device, orientation and locking device, dynamometry and a support arrangement, the fixing device of electric magnet and displacement tester.
Described accurate displacement regulates device and includes: the worm and wormwheel device connected firmly with firm banking, and described firm banking and ground connect firmly, and described worm and wormwheel device includes worm and worm wheel；The leading screw connected firmly with described worm gear one end；The nut coordinated with described leading screw；
Described orientation and locking device include: orientation lever, and described orientation lever one end and described nut connect firmly, and described one end has the first endoporus, and described first endoporus is inserted in one end of described leading screw, and described orientation lever other end is through the first linear bearing and directed support；Described directed support connects firmly with described firm banking；First lock-screw, described first lock-screw is connected with described directed support by coordinating；
Described dynamometry and a support arrangement include: force cell, and described force cell one end is connected with described orientation lever, and the other end connects with contacting bar；Bracing frame, support frame as described above lower end has the second endoporus；Second linear bearing, described contact bar described second linear bearing of traverse；Adjusting rod, the second described endoporus is inserted in described adjusting rod one end, and other end is connected with described firm banking；Second lock-screw, described second lock-screw connects firmly with support frame as described above by coordinating；
The fixing device of described electric magnet includes: electric magnet, described electric magnet is combined fixing by upper bracket and lower carriage, and the push rod of described electric magnet one end contacts with the described end face contacting bar；Described upper bracket compresses described electric magnet top, is connected with described lower carriage；Described lower carriage one end is fixed on described firm banking, and the other end is supported on bottom described electric magnet；Bearing pin, the described bearing pin described upper bracket of traverse and described lower carriage；
Described displacement tester includes: laser displacement sensor, and laser can be beaten on the end face of described contact bar by described laser displacement sensor, and described laser displacement sensor is connected with adjusting pole；Connect firmly with described firm banking bottom described adjusting pole.
Further, described first linear bearing provides guiding for described orientation lever, described first linear bearing connects firmly with described directed support, described orientation lever is subject to described directed support degree of freedom constraint, move only along described first linear bearing and described directed support left and right directions, it is impossible to rotate.
Further, described second linear bearing provides guiding for described contact bar, described second linear bearing and support frame as described above connect firmly, and described contact bar can move left and right along described second linear bearing, and bottom support frame as described above, the left and right sides is symmetrical each fixes described second lock-screw.
Further, described bearing pin is through described upper bracket and described lower carriage, and described upper bracket can rotate around described bearing pin, so that upper bracket is opened relative to described lower carriage or closed, with the dismounting of convenient electromagnetic ferrum and installation.
For the electric magnet dynamic performance and testing of the present invention, test on the basis of device at electric magnet static properties, carry out local structural modification, add pretightning force charger.This pretightning force charger includes: support bar, and described support bar one end is connected with described force cell, and other end has the 3rd endoporus, and this end face contacts with spring one end；Described spring other end and load bar end contact；The 3rd linear bearing connected firmly with support bar；Described 3rd linear bearing is passed through in described load bar one end, inserts described 3rd endoporus；
Further, described 3rd linear bearing provides straight-line guidance for described load bar, and described load bar moves left and right in described 3rd endoporus along described 3rd linear bearing, and described spring can realize compression or stretch, thus producing the prefastening load needed.
Compared with prior art, the present invention cleverly electric magnet static properties is tested device and dynamic performance and testing carries out integrated, integrated design, have only to change partial structurtes, just can realize the exchange of two kinds of difference in functionalitys, therefore there is the advantages such as integrated level height, assembling is simple, debugging is convenient.Another advantage is that the combination by worm-and-wheel gear with screw pair uses, take full advantage of big retarding ratio and the auto-lock function of worm-and-wheel gear, and feed screw nut adjutant converts the function of rectilinear motion to, in combination with use, achieve accurate displacement to regulate, and ensure that stability and the reliability of integrated model.Still yet another advantage is that the use of linear bearing, it is possible to better ensure guidance quality and the stationarity of mechanism kinematic, the employing of the first holding screw and the second holding screw makes test device more reliable and more stable.
Accompanying drawing explanation
Below in conjunction with the embodiment described by accompanying drawing, electric magnet static properties of the present invention and dynamic performance and testing are described in further detail.
Fig. 1 is the longitudinal sectional view of electric magnet static properties provided by the present invention test device.
Fig. 2 is the longitudinal sectional view of electric magnet dynamic performance and testing provided by the present invention.
Detailed description of the invention
Hereinafter, the present invention is further elaborated in conjunction with the accompanying drawings and embodiments.For convenience of description, the orientation of Fig. 1 and Fig. 2 is decided to be four direction up and down.
As it is shown in figure 1, electric magnet static properties provided by the invention test device, this device includes accurate displacement and regulates device, orientation and locking device, dynamometry and a support arrangement, the fixing device of electric magnet and displacement tester.
Described accurate displacement regulates device and includes: the worm and wormwheel device 2 connected firmly with firm banking 1, and described firm banking 1 connects firmly with ground, and described worm and wormwheel device 2 includes worm screw 3 and worm gear 4；The leading screw 5 connected firmly with described worm gear 4 one end；Described leading screw 5 can along with worm gear 4 synchronous axial system in described worm gear device 2；The nut 6 coordinated with described leading screw 5, described nut 6 does rectilinear motion when described leading screw 5 rotates.
Described orientation and locking device include: orientation lever 7, described orientation lever 7 left end and described nut 6 connect firmly, this end has the first endoporus, the right-hand member of described leading screw 5 inserts described first endoporus, described orientation lever 7 right-hand member moves along the first linear bearing 8 and directed support 9 left and right directions, it is impossible to rotate；Described first linear bearing 8 connects firmly with described directed support 9, provides guide effect for described orientation lever 7；Described directed support 9 connects firmly with described firm banking 1, and top is equipped with the first lock-screw 10, it is possible to lock the relative position of described directed support 9 and described orientation lever 7.
Described dynamometry and a support arrangement include: force cell 11, described force cell 11 left end is connected with described orientation lever 7, and the other end connects with contacting bar 12；Bracing frame 13, support frame as described above 13 lower end has the second endoporus, and outside equipped with the second lock-screw 16, described second holding screw 16 can lock the relative position of support frame as described above 13 and adjusting rod 15；The second described endoporus is inserted in described adjusting rod 15 upper end, and threadeding with described firm banking 1 in lower end, it is possible to adjusts high and low position as required；Second linear bearing 14, described second linear bearing 14 connects firmly with support frame as described above 13 one end, described contact bar 12 described second linear bearing 14 of traverse；
The fixing device of described electric magnet includes: electric magnet 17, described electric magnet 17 is combined fixing by upper bracket 18 and lower carriage 19, and the push rod of described electric magnet 17 left end contacts with the described end face contacting bar 12；Described lower carriage 19 bottom and described firm banking 1 connect firmly, and upper end is supported on bottom described electric magnet 17；Described upper bracket 18 contacts with described electric magnet 17 top, it is connected with described lower carriage 19, described upper bracket 18 can rotate around bearing pin 20, makes upper bracket 18 open around described bearing pin 20 relative to described lower carriage 19 or close, it is achieved the dismounting of electric magnet 17 and installation；The described bearing pin 20 described upper bracket 18 of traverse and described lower carriage 19.
Described displacement tester includes: laser displacement sensor 21, and laser can be beaten its right end face at described contact bar 12 by described laser displacement sensor 21, and described laser displacement sensor 21 can adjust on adjusting pole 22 according to highly desirable；Connect firmly with described firm banking 1 bottom described adjusting pole 22.
When adopting the static properties of electric magnet static properties test device to test electric magnet, electric magnet 17 needs constantly to adjust priming stroke.The initial displacement of the present invention adjusts mode and is divided into big adjustment of displacement and thin tail sheep to adjust two kinds of working methods: by adjusting the length of fit of force cell 11 and orientation lever 7 or adjusting the length of fit of length of fit contact bar 12 and force cell 11 or adjustment above two form simultaneously and realize the adjustment on a large scale of displacement；By the worm gear 3 in rotary worm gear 2, worm gear 3 drives the rotary motion of leading screw 5, now nut 6 moves left and right, nut 6 drives orientation lever 7 to do displacement along directed support 9, orientation lever 7 drives contact bar 12 to do directed movement by force cell 11 further, so that the application point that laser displacement sensor 21 dozens is on contact bar 12 end face is subjected to displacement change, by observing the displacement registration of laser displacement sensor 21, it may be achieved the thin tail sheep adjustment of displacement.After adjusting the initial displacement stroke of electric magnet 17, its energising is tested, the electromagnetic force push rod with motor magnet 17 left end, by contacting bar 12, electromagnetic force is passed to force cell 11, can read electromagnetic force size；It addition, by changing input current size, the electric magnet 17 electromagnetic force characteristic under different electric currents can be obtained.
By the above it can be seen that for having at high speed, in high precision, the electric magnet of the feature such as little stroke, the static properties test device of the present invention can obtain electric magnet static characteristic under different strokes, such as power-stroke characteristic, power-current characteristics etc..
As in figure 2 it is shown, electric magnet dynamic performance and testing provided by the invention, this device is tested on the basis of device at electric magnet static properties, carries out local structural modification, adds pretightning force charger.
Described pretightning force charger includes: support bar 23, and described support bar 23 left end is connected with described force cell 11, and right-hand member has the 3rd endoporus, this end face and spring 26 end thereof contacts；Described spring 26 other end and load bar 25 end contact；Three-knuckle bearing 24, described three-knuckle bearing 24 connects firmly with described support bar 23, provides guiding for described load bar 25；Described load bar 25 left end moves left and right in described 3rd endoporus along described three-knuckle bearing 24；Along with the change of displacement between described support bar 23 and described load bar 25, described spring 26 can realize compression or stretch, thus producing the prefastening load needed.
When adopting the dynamic property of electric magnet dynamic performance and testing test electric magnet, electric magnet 17 needs constantly to adjust initial pretightning force.The initial pretightning force adjustment mode of the present invention is divided into big pretightning force adjustment and little pretightning force to adjust two kinds of working methods: by adjusting the length of fit of force cell 11 and orientation lever 7 or adjusting the length of fit of support bar 23 and force cell 11 or adjust the length of fit of above two form simultaneously, by quickly changing spring 26 decrement between support bar 23 and load bar 25, realize big pretightning force adjustment；Additionally, spring force is by the worm gear 3 in rotary worm gear 2, worm gear 3 drives the rotary motion of leading screw 5, now nut 6 moves left and right, nut 6 drives orientation lever 7 to do displacement along directed support 9, orientation lever 7 drives support bar 23 to do directed movement by force cell 11 further, by changing at a slow speed spring 26 decrement between support bar 23 and load bar 25, realizes little pretightning force adjustment.Electric magnet 17 left end push rod is played reset response by the pretightning force that spring 26 produces, it is achieved thereby that electric magnet 17 carries out the essential condition of dynamic performance testing.After adjusting initial pretightning force and the priming stroke of electric magnet 17, its energising is tested, the electromagnetic force push rod with motor magnet 17 left end is moved to the left, and obtains the change of lift rod stroke and time now by the laser displacement sensor 21 dozens test point on load bar 25 end face.It addition, by changing input current size, the electric magnet 17 response characteristic under different electric currents can be obtained.
By the above it can be seen that the dynamic performance and testing of the present invention can obtain electric magnet dynamic characteristic under different pretightning forces, such as stroke-time response, current-time characteristic etc..
Although the present invention is with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art are without departing from the spirit and scope of the present invention; may be by the method for the disclosure above and technology contents and technical solution of the present invention is made possible variation and amendment; therefore; every content without departing from technical solution of the present invention; according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, belong to the protection domain of technical solution of the present invention.
Claims (6)
1. an electric magnet test device, regulates device, orientation and locking device, dynamometry and a support arrangement, the fixing device of electric magnet and displacement tester including accurate displacement.
2. accurate displacement described in regulates device and includes: the worm and wormwheel device connected firmly with firm banking, and described firm banking and ground connect firmly, and described worm and wormwheel device includes worm and worm wheel；The leading screw connected firmly with described worm gear one end；The nut coordinated with described leading screw；Described orientation and locking device include: orientation lever, and described orientation lever one end and described nut connect firmly, and this end has the first endoporus, and described first endoporus is inserted in one end of described leading screw, and described orientation lever other end is through the first linear bearing and directed support；Described directed support connects firmly with described firm banking；First lock-screw, described first lock-screw is connected with described directed support by coordinating；Described dynamometry and a support arrangement include: force cell, and described force cell one end is connected with described orientation lever, and the other end connects with contacting bar；Bracing frame, support frame as described above lower end has the second endoporus；Second linear bearing, described contact bar described second linear bearing of traverse；Adjusting rod, the second described endoporus is inserted in described adjusting rod one end, and other end is connected with described firm banking；Second lock-screw, described second lock-screw connects firmly with support frame as described above by coordinating；
The fixing device of described electric magnet includes: electric magnet, described electric magnet is combined fixing by upper bracket and lower carriage, and the push rod of described electric magnet one end contacts with the described end face contacting bar；Described upper bracket compresses described electric magnet top, is connected with described lower carriage；Described lower carriage one end is fixed on described firm banking, and one end is supported on bottom described electric magnet；Bearing pin, the described bearing pin described upper bracket of traverse and described lower carriage；Described displacement tester includes: laser displacement sensor, and laser can be beaten on the end face of described contact bar by described laser displacement sensor, and described laser displacement sensor is connected with adjusting pole；Connect firmly with described firm banking bottom described adjusting pole.
3. electric magnet according to claim 1 test device, it is characterized in that: described first linear bearing provides guiding for described orientation lever, described first linear bearing connects firmly with described directed support, described orientation lever is subject to described directed support degree of freedom constraint, move only along described first linear bearing and described directed support left and right directions, it is impossible to rotate.
4. electric magnet according to claim 1 test device, it is characterized in that: described second linear bearing provides guiding for described contact bar, described second linear bearing and support frame as described above connect firmly, described contact bar can move left and right along described second linear bearing, and bottom support frame as described above, the left and right sides is symmetrical each fixes described second lock-screw.
5. electric magnet according to claim 1 test device, it is characterized in that: the described bearing pin described upper bracket of traverse and described lower carriage, described upper bracket can rotate around described bearing pin, so that upper bracket is opened relative to described lower carriage or closed, with the dismounting of convenient electromagnetic ferrum and installation；Electric magnet according to claim 1 test device, it is characterised in that: also include pretightning force charger；Described pretightning force charger includes: support bar, and described support bar one end is connected with described force cell, and other end has the 3rd endoporus, and this end face contacts with spring one end；Described spring other end and load bar end contact；The three-knuckle bearing connected firmly with support bar；Described three-knuckle bearing is passed through in described load bar one end, inserts described 3rd endoporus.
6. test device according to the electric magnet described in claim 5, it is characterized in that: described 3rd linear bearing provides straight-line guidance for described load bar, described load bar moves left and right in described 3rd endoporus along described 3rd linear bearing, described spring can realize compression or stretch, thus producing the prefastening load needed.
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| CN201410745355.3A CN105738083A (en) | 2014-12-09 | 2014-12-09 | Electromagnet testing device |
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| CN201410745355.3A CN105738083A (en) | 2014-12-09 | 2014-12-09 | Electromagnet testing device |
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| CN105738083A true CN105738083A (en) | 2016-07-06 |
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| CN201410745355.3A Pending CN105738083A (en) | 2014-12-09 | 2014-12-09 | Electromagnet testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663639A (en) * | 2018-05-21 | 2018-10-16 | 安徽威迈光机电科技有限公司 | A kind of electromagnet suction measuring device |
| CN109633498A (en) * | 2019-01-03 | 2019-04-16 | 中车青岛四方机车车辆股份有限公司 | A kind of electromagnet testing stand and detection platform |
| RU199330U1 (en) * | 2020-03-26 | 2020-08-28 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | DEVICE FOR DETERMINING ELECTROMAGNET DYNAMIC CHARACTERISTICS |
| CN112526252A (en) * | 2020-10-29 | 2021-03-19 | 广西电网有限责任公司南宁供电局 | Method for measuring dynamic current and dynamic resistance change rate of electromagnet |
| CN112965016A (en) * | 2021-02-03 | 2021-06-15 | 山东大学 | Measuring device and measuring method for measuring output characteristics of proportional electromagnet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108663639A (en) * | 2018-05-21 | 2018-10-16 | 安徽威迈光机电科技有限公司 | A kind of electromagnet suction measuring device |
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| RU199330U1 (en) * | 2020-03-26 | 2020-08-28 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | DEVICE FOR DETERMINING ELECTROMAGNET DYNAMIC CHARACTERISTICS |
| CN112526252A (en) * | 2020-10-29 | 2021-03-19 | 广西电网有限责任公司南宁供电局 | Method for measuring dynamic current and dynamic resistance change rate of electromagnet |
| CN112965016A (en) * | 2021-02-03 | 2021-06-15 | 山东大学 | Measuring device and measuring method for measuring output characteristics of proportional electromagnet |
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