CN102355117A - Longitudinal magnetic flux structure rectilinear eddy current brake - Google Patents
Longitudinal magnetic flux structure rectilinear eddy current brake Download PDFInfo
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- CN102355117A CN102355117A CN2011102839671A CN201110283967A CN102355117A CN 102355117 A CN102355117 A CN 102355117A CN 2011102839671 A CN2011102839671 A CN 2011102839671A CN 201110283967 A CN201110283967 A CN 201110283967A CN 102355117 A CN102355117 A CN 102355117A
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Abstract
The invention relates to a longitudinal magnetic flux structure rectilinear eddy current brake, which belongs to the technical field of electric motors and solves the problems that a thrust loading test device of an existing linear electric motor is only capable of single-direction test and the loading force can not be changed continuously. The brake disclosed by the invention is in a unilateral structure and consists of a primary coil and a secondary coil, an air gap exists between the primary coil and the secondary coil, the primary coil consists of an armature core and an armature winding, an air gap side surface of the armature core is uniformly provided with a plurality of rectangular through slots so as to make the armature core form a toothspace structure, the slotting direction of the rectangular through slots is perpendicular to the movement direction of a rotor of the brake, a tooth between every two adjacent rectangular through slots is wound with a winding coil, the winding directions of the winding coils wound on the two adjacent teeth are opposite, and the winding coils on each tooth are sequentially connected in series to form the armature winding; and the secondary coil consists of a response plate and a magnetic conduction yoke plate, and the response plate is attached to the air gap side surface of the magnetic conduction yoke plate. The brake disclosed by the invention is suitable for the thrust loading test of the linear electric motor.
Description
Technical field
The present invention relates to a kind of linear electric motors characteristic test system with longitudinal magnetic flux structure rectilinear vortex brake, belong to technical field of motors.
Background technology
Processing industry field in modern times; All need high-speed high-precision rectilinear motion such as a lot of occasions such as laser cutting, high speed grinding machine, fine turning lathe, machining center; Traditional method can only obtain rectilinear motion by means of intermediate links such as turning motor and ball screws, and this just exists inevitably, and inertia is big, friction is big, shortcoming such as backlass is arranged.In recent years, along with the progress of techniques of linear motor, increasing occasion begins directly to use it and obtains rectilinear motion.Owing to adopt direct driving technologies, linear electric motors have that speed is fast, acceleration is high, positioning accuracy is high, stroke is long and advantage such as dynamic response is fast, and this has exactly satisfied the requirement of high speed and precision process technology.
But whether linear motor performance and the characteristic developing or buy to system requirements meet the demands, how to the linear induction motor system performance make correctly, objective appraisal, the linear induction motor system testing equipment that all needs maturation is accomplished.
Existing linear motor pushing force loading test device is as shown in Figure 8, and this device is made up of the mover of system platform, linear electric motors, stator, pulley, transmission rope and the counterweight of linear electric motors.Through pulley and transmission rope, be added to the own wt of counterweight on the mover of linear electric motors, form unidirectional pulling force and be loaded on the linear electric motors.Constantly increase the weight of counterweight, when linear electric motors began uniform motion, the braking force of linear electric motors equaled the weight of counterweight, obtained the maximum static force of linear electric motors afterwards.But there is following shortcoming in this loading test device: when (1) test loads thrust, can only carry out folk prescription and measure to, one way, be not suitable for the test to the short stroke linear electric motors; (2) loading force can not change continuously, can only change load through adding or reduce counterweight; (3) system adopts transmission rope, produces deformation during loading, can produce bigger thrust disturbance during motion, thereby influence loading accuracy; (4) can only staticly load, can't carry out the dynamic load test.
Summary of the invention
The objective of the invention is to solve existing linear motor pushing force loading test device exists can only folk prescription can not the continually varying problem to test and loading force, a kind of longitudinal magnetic flux structure rectilinear vortex brake is provided.
First kind of technical scheme provided by the invention:
A kind of longitudinal magnetic flux structure rectilinear vortex brake, said brake is a single-side structural, by elementary and secondary a composition, is air gap between elementary and secondary,
Elementaryly form by armature core and armature winding; On the air gap side surface of armature core, evenly have a plurality of rectangular through slot; Make armature core form the teeth groove structure, the fluting direction of rectangular through slot is twined a winding coil perpendicular to the direction of motion of brake mover on the tooth between every adjacent two rectangular through slot; The winding coil that twines on adjacent two teeth around on the contrary, the formation armature winding that is together in series successively of the winding coil on each tooth;
Secondaryly be made up of reaction plate and magnetic conduction yoke plate, reaction plate is attached on the air gap side surface of magnetic conduction yoke plate.
Second kind of technical scheme provided by the invention:
A kind of longitudinal magnetic flux structure rectilinear vortex brake, said brake is a bilateral structure, by two elementary and secondary compositions, two elementary mirror images that are are symmetricly set in secondary both sides, one secondary and two be two air gaps that are parallel to each other between elementary;
Elementaryly form by armature core, armature winding, a plurality of permanent magnet and a plurality of conductive magnetic yoke; On the air gap side surface of armature core, evenly have a plurality of rectangular through slot; Make armature core form the teeth groove structure, the fluting direction of rectangular through slot is twined a winding coil perpendicular to the direction of motion of brake mover on the tooth between every adjacent two rectangular through slot; The winding coil that twines on adjacent two teeth around on the contrary, the formation armature winding that is together in series successively of the winding coil on each tooth;
Near the air gap side permanent magnet is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke respectively between two sidewalls of every permanent magnet and its place rectangular through slot, be used for fixing permanent magnet;
The magnetizing direction of permanent magnet is parallel to the direction of motion of brake mover, and the magnetizing direction of adjacent permanent magnet is opposite; The magnetizing direction of secondary both sides permanent magnet opposed is opposite;
Secondary is reaction plate.
The third technical scheme provided by the invention:
A kind of longitudinal magnetic flux structure rectilinear vortex brake, said brake is a bilateral structure, it comprise elementary and two secondary,
Elementary is mirror image, and two secondary mirror images that are are symmetricly set in elementary both sides, elementary and two be two air gaps that are parallel to each other between secondary;
Elementaryly form by armature core, armature winding, polylith permanent magnet and polylith conductive magnetic yoke; On each air gap side surface of armature core, evenly have a plurality of rectangular through slot; Make armature core form the teeth groove structure; The fluting direction of rectangular through slot is perpendicular to the direction of motion of brake mover; Twine a winding coil on the tooth between every adjacent two rectangular through slot, along the winding coil that twines on two adjacent teeth of the brake mover direction of motion around on the contrary, the formation armature winding that is together in series successively of the winding coil on each tooth;
Near the air gap side permanent magnet is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke respectively between two sidewalls of every permanent magnet and its place rectangular through slot, be used for fixing permanent magnet;
The magnetizing direction of permanent magnet is parallel to the direction of motion of brake mover, and is opposite along the magnetizing direction of the adjacent permanent magnet of the mover direction of motion; Magnetizing direction perpendicular to two adjacent permanent magnets of the mover direction of motion is opposite;
Each is secondary is made up of reaction plate and magnetic conduction yoke plate, and reaction plate is attached on the air gap side surface of magnetic conduction yoke plate.
Advantage of the present invention is: the present invention is directed to the subject matter that present various linear electric motors loading test device exists; Provide that a kind of apparatus structure is simple, power density is high, loss is little, cost is low, easy to operate, brake that reliability is high; It can realize two-way test for linear electric motors provide the braking force opposite with the mover direction of motion; Loading force of the present invention can be regulated in the linear electric motors motion process continuously, and has fundamentally eliminated the loading force fluctuation, has improved the system testing precision.
Description of drawings
Fig. 1 is the structural representation of the longitudinal magnetic flux structure rectilinear vortex brake of embodiment of the present invention one described electric excitation;
Fig. 2 is the structural representation of embodiment of the present invention two;
Fig. 3 is the structural representation of embodiment of the present invention three;
Fig. 4 is the structural representation of embodiment of the present invention four;
Fig. 5 is the structural representation of embodiment of the present invention five;
Fig. 6 is the structural representation of embodiment of the present invention nine;
Fig. 7 is the structural representation of the secondary liquid cools structure of the present invention;
Fig. 8 is existing linear motor pushing force loading test device structural representation.
Embodiment
Embodiment one: below in conjunction with Fig. 1 this execution mode is described, the said longitudinal magnetic flux structure of this execution mode rectilinear vortex brake, said brake is a single-side structural, by elementary and secondary a composition, is air gap between elementary and secondary,
Elementaryly form by armature core 1-1 and armature winding 1-2; On the air gap side surface of armature core 1-1, evenly have a plurality of rectangular through slot; Make armature core 1-1 form the teeth groove structure, the fluting direction of rectangular through slot is twined a winding coil perpendicular to the direction of motion of brake mover on the tooth between every adjacent two rectangular through slot; The winding coil that twines on adjacent two teeth around on the contrary, the winding coil on each tooth is together in series successively and forms armature winding 1-2;
Secondaryly be made up of reaction plate 2-1 and magnetic conduction yoke plate 2-2, reaction plate 2-1 is attached on the air gap side surface of magnetic conduction yoke plate 2-2.
This execution mode is the brake of the structure of electric excitation.
Embodiment two: below in conjunction with Fig. 2 this execution mode is described, this execution mode is for to the further specifying of execution mode one, and said elementary a plurality of permanent magnet 1-3 and a plurality of conductive magnetic yoke 1-4 of also comprising of this execution mode, permanent magnet 1-3 are plate shaped,
Near the air gap side permanent magnet 1-3 is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke 1-4 respectively between two sidewalls of every permanent magnet 1-3 and its place rectangular through slot, be used for fixing permanent magnet 1-3;
The magnetizing direction of permanent magnet 1-3 is parallel to the direction of motion of brake mover, and the magnetizing direction of adjacent permanent magnet 1-3 is opposite.
Each rectangular through slot has been divided into two sections along the tooth depth direction of armature core 1-1 in this execution mode, is used to embed armature winding 1-2 near the bottom land section, is used to embed permanent magnet near the notch section,
Two conductive magnetic yoke 1-4 that embed in each rectangular through slot in this execution mode can be integral structure with armature core 1-1; Promptly on armature core 1-1, form T type groove, make between every adjacent two rectangular through slot and erect the facewidth between the true section less than the T type in the facewidth between the T type horizontal segment.
Embodiment three: this execution mode is described below in conjunction with Fig. 3; The said longitudinal magnetic flux structure of this execution mode rectilinear vortex brake; Said brake is a bilateral structure; By two elementary and secondary compositions, two elementary mirror images that are are symmetricly set in secondary both sides, one secondary and two be two air gaps that are parallel to each other between elementary;
Elementaryly form by armature core 1-1, armature winding 1-2, a plurality of permanent magnet 1-3 and a plurality of conductive magnetic yoke 1-4; On the air gap side surface of armature core 1-1, evenly have a plurality of rectangular through slot; Make armature core 1-1 form the teeth groove structure; The fluting direction of rectangular through slot is perpendicular to the direction of motion of brake mover; Twine a winding coil on the tooth between every adjacent two rectangular through slot, the winding coil that twines on adjacent two teeth around on the contrary, the winding coil on each tooth is together in series successively and forms armature winding 1-2;
Near the air gap side permanent magnet 1-3 is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke 1-4 respectively between two sidewalls of every permanent magnet 1-3 and its place rectangular through slot, be used for fixing permanent magnet 1-3;
The magnetizing direction of permanent magnet 1-3 is parallel to the direction of motion of brake mover, and the magnetizing direction of adjacent permanent magnet 1-3 is opposite; The magnetizing direction of secondary both sides permanent magnet opposed 1-3 is opposite;
Secondary is reaction plate 2-1.
Embodiment four: this execution mode is described below in conjunction with Fig. 4; This execution mode is further specifying execution mode three; The said secondary magnetic conduction yoke plate 2-2 that also comprises of this execution mode; Said reaction plate 2-1 is two, attaches a deblocking reaction plate 2-1 on the air gap side surface of magnetic conduction yoke plate 2-2 respectively.
Embodiment five: below in conjunction with Fig. 5 this execution mode is described, the said longitudinal magnetic flux structure of this execution mode rectilinear vortex brake, said brake is a bilateral structure, it comprise elementary and two secondary,
Elementary is mirror image, and two secondary mirror images that are are symmetricly set in elementary both sides, elementary and two be two air gaps that are parallel to each other between secondary;
Elementaryly form by armature core 1-1, armature winding 1-2, polylith permanent magnet 1-3 and polylith conductive magnetic yoke 1-4; On each air gap side surface of armature core 1-1, evenly have a plurality of rectangular through slot; Make armature core 1-1 form the teeth groove structure; The fluting direction of rectangular through slot is perpendicular to the direction of motion of brake mover; Twine a winding coil on the tooth between every adjacent two rectangular through slot, along the winding coil that twines on two adjacent teeth of the brake mover direction of motion around on the contrary, the winding coil on each tooth is together in series successively and forms armature winding 1-2;
Near the air gap side permanent magnet 1-3 is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke 1-4 respectively between two sidewalls of every permanent magnet 1-3 and its place rectangular through slot, be used for fixing permanent magnet 1-3;
The magnetizing direction of permanent magnet 1-3 is parallel to the direction of motion of brake mover, and is opposite along the magnetizing direction of the adjacent permanent magnet 1-3 of the mover direction of motion; Magnetizing direction perpendicular to two adjacent permanent magnet 1-3 of the mover direction of motion is opposite;
Each is secondary is made up of reaction plate 2-1 and magnetic conduction yoke plate 2-2, and reaction plate 2-1 is attached on the air gap side surface of magnetic conduction yoke plate 2-2.
Embodiment six: this execution mode is for to the further specifying of execution mode five, and the said elementary armature core 1-1 of this execution mode is fixed together through connecting plate 3 by two iron cores and forms mirror image.
Embodiment seven: this execution mode is for to the further specifying of execution mode one, two, three, four, five or six, and the said reaction plate 2-1 of this execution mode is processed by low resistivity material.
Embodiment eight: this execution mode is further specifying execution mode one, two, three, four, five, six or seven; The said armature winding 1-2 of this execution mode adopts the DC power supply excitation, and the magnetic flux that the DC power supply excitation produces is identical with magnetic flux direction when passing air gap that permanent magnet 1-3 produces.
Embodiment nine: this execution mode is described below in conjunction with Fig. 6 and Fig. 7; This execution mode is further specifying execution mode one, two, three, four, five, six, seven or eight; The said secondary employing liquid cools structure of this execution mode; Evenly have the cooling duct 4 that is parallel to each other on secondary, cooling duct 4 open the direction of motion that direction is parallel to the brake mover.
Embodiment ten: this execution mode is for to the further specifying of execution mode one, two, three, four, five, six, seven, eight or nine, and said brake is moving primary structure or moving secondary structure.
Claims (10)
1. longitudinal magnetic flux structure rectilinear vortex brake, it is characterized in that: said brake is a single-side structural, by elementary and secondary a composition, is air gap between elementary and secondary,
Elementaryly form by armature core (1-1) and armature winding (1-2); On the air gap side surface of armature core (1-1), evenly have a plurality of rectangular through slot; Make armature core (1-1) form the teeth groove structure, the fluting direction of rectangular through slot is twined a winding coil perpendicular to the direction of motion of brake mover on the tooth between every adjacent two rectangular through slot; The winding coil that twines on adjacent two teeth around on the contrary, the winding coil on each tooth is together in series successively and forms armature winding (1-2);
Secondaryly be made up of reaction plate (2-1) and magnetic conduction yoke plate (2-2), reaction plate (2-1) is attached on the air gap side surface of magnetic conduction yoke plate (2-2).
2. longitudinal magnetic flux structure rectilinear vortex brake according to claim 1 is characterized in that: said elementary a plurality of permanent magnets (1-3) and a plurality of conductive magnetic yoke (1-4) of also comprising, and permanent magnet (1-3) is plate shaped,
Near the air gap side permanent magnet (1-3) is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke (1-4) respectively between two sidewalls of every permanent magnet (1-3) and its place rectangular through slot, be used for fixing permanent magnet (1-3);
The magnetizing direction of permanent magnet (1-3) is parallel to the direction of motion of brake mover, and the magnetizing direction of adjacent permanent magnet (1-3) is opposite.
3. longitudinal magnetic flux structure rectilinear vortex brake; It is characterized in that: said brake is a bilateral structure; By two elementary and secondary compositions, two elementary mirror images that are are symmetricly set in secondary both sides, one secondary and two be two air gaps that are parallel to each other between elementary;
Elementaryly form by armature core (1-1), armature winding (1-2), a plurality of permanent magnet (1-3) and a plurality of conductive magnetic yoke (1-4); On the air gap side surface of armature core (1-1), evenly have a plurality of rectangular through slot; Make armature core (1-1) form the teeth groove structure; The fluting direction of rectangular through slot is perpendicular to the direction of motion of brake mover; Twine a winding coil on the tooth between every adjacent two rectangular through slot, the winding coil that twines on adjacent two teeth around on the contrary, the winding coil on each tooth is together in series successively and forms armature winding (1-2);
Near the air gap side permanent magnet (1-3) is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke (1-4) respectively between two sidewalls of every permanent magnet (1-3) and its place rectangular through slot, be used for fixing permanent magnet (1-3);
The magnetizing direction of permanent magnet (1-3) is parallel to the direction of motion of brake mover, and the magnetizing direction of adjacent permanent magnet (1-3) is opposite; The magnetizing direction of secondary both sides permanent magnet opposed (1-3) is opposite;
Secondary is reaction plate (2-1).
4. longitudinal magnetic flux structure rectilinear vortex brake according to claim 3 is characterized in that: the secondary magnetic conduction yoke plate (2-2) that also comprises, said reaction plate (2-1) is two, attaches a deblocking reaction plate (2-1) on the air gap side surface of magnetic conduction yoke plate (2-2) respectively.
5. longitudinal magnetic flux structure rectilinear vortex brake, it is characterized in that: said brake is a bilateral structure, it comprise elementary and two secondary,
Elementary is mirror image, and two secondary mirror images that are are symmetricly set in elementary both sides, elementary and two be two air gaps that are parallel to each other between secondary;
Elementaryly form by armature core (1-1), armature winding (1-2), polylith permanent magnet (1-3) and polylith conductive magnetic yoke (1-4); On each air gap side surface of armature core (1-1), evenly have a plurality of rectangular through slot; Make armature core (1-1) form the teeth groove structure; The fluting direction of rectangular through slot is perpendicular to the direction of motion of brake mover; Twine a winding coil on the tooth between every adjacent two rectangular through slot, along the winding coil that twines on two adjacent teeth of the brake mover direction of motion around on the contrary, the winding coil on each tooth is together in series successively and forms armature winding (1-2);
Near the air gap side permanent magnet (1-3) is set between two parties in each rectangular through slot, embeds a conductive magnetic yoke (1-4) respectively between two sidewalls of every permanent magnet (1-3) and its place rectangular through slot, be used for fixing permanent magnet (1-3);
The magnetizing direction of permanent magnet (1-3) is parallel to the direction of motion of brake mover, and is opposite along the magnetizing direction of the adjacent permanent magnet of the mover direction of motion (1-3); Magnetizing direction perpendicular to adjacent two permanent magnets (1-3) of the mover direction of motion is opposite;
Each is secondary is made up of reaction plate (2-1) and magnetic conduction yoke plate (2-2), and reaction plate (2-1) is attached on the air gap side surface of magnetic conduction yoke plate (2-2).
6. longitudinal magnetic flux structure rectilinear vortex brake according to claim 5 is characterized in that: said elementary armature core (1-1) is fixed together through connecting plate (3) by two iron cores and forms mirror image.
7. according to claim 1,2,3,4,5 or 6 described longitudinal magnetic flux structure rectilinear vortex brakes, it is characterized in that: said reaction plate (2-1) is processed by low resistivity material.
8. according to claim 1,2,3,4,5 or 6 described longitudinal magnetic flux structure rectilinear vortex brakes; It is characterized in that: said armature winding (1-2) adopts the DC power supply excitation, and the magnetic flux that the DC power supply excitation produces is identical with magnetic flux direction when passing air gap that permanent magnet (1-3) produces.
9. according to claim 1,2,3,4,5 or 6 described longitudinal magnetic flux structure rectilinear vortex brakes; It is characterized in that: said secondary employing liquid cools structure; Evenly have the cooling duct (4) that is parallel to each other on secondary, cooling duct (4) open the direction of motion that direction is parallel to the brake mover.
10. according to claim 1,2,3,4,5 or 6 described longitudinal magnetic flux structure rectilinear vortex brakes, it is characterized in that: said brake is moving primary structure or moving secondary structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102839671A CN102355117A (en) | 2011-09-22 | 2011-09-22 | Longitudinal magnetic flux structure rectilinear eddy current brake |
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| CN2011102839671A CN102355117A (en) | 2011-09-22 | 2011-09-22 | Longitudinal magnetic flux structure rectilinear eddy current brake |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219863A (en) * | 2013-04-28 | 2013-07-24 | 哈尔滨工业大学 | Polar pitch variable rectilinear vortex brake and controlling method thereof |
| CN103233996A (en) * | 2013-04-28 | 2013-08-07 | 哈尔滨工业大学 | Linear electromagnetic damper with serially-connected magnetic circuit structure |
| CN103997185A (en) * | 2014-05-13 | 2014-08-20 | 东南大学 | Bi-directional synchronous movement linear motor |
| CN105196880A (en) * | 2015-09-06 | 2015-12-30 | 哈尔滨工业大学 | AC/DC (alternating current/direct current) hybrid excitation rail eddy-current brake |
| CN105565107A (en) * | 2016-03-12 | 2016-05-11 | 焦作市华鹰机电技术有限公司 | High-performance double-force augment safety brake and non-rope elevator |
| CN105621192A (en) * | 2016-03-11 | 2016-06-01 | 河南理工大学 | Efficient permanent magnet power-enhanced safety brake and direct-driven elevator |
| CN105621193A (en) * | 2016-03-12 | 2016-06-01 | 焦作市华鹰机电技术有限公司 | High-performance electromagnetic power-enhanced safety brake and direct-driven elevator |
| CN106185682A (en) * | 2016-03-11 | 2016-12-07 | 焦作市华鹰机电技术有限公司 | High-performance electric magnet aid force deadman's brake and directly drive elevator |
| CN107124086A (en) * | 2017-05-12 | 2017-09-01 | 哈尔滨工业大学 | Mixed winding linear electromagnetic brake |
| CN111900855A (en) * | 2020-08-11 | 2020-11-06 | 哈尔滨工业大学 | High-speed eddy current brake with composite induction disc |
| CN112671203A (en) * | 2021-01-18 | 2021-04-16 | 哈尔滨工业大学 | High-speed linear electromagnetic propulsion and electromagnetic braking system |
| CN115236510A (en) * | 2022-09-21 | 2022-10-25 | 西北工业大学 | Linear electric motor performance test bench |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233996A (en) * | 2013-04-28 | 2013-08-07 | 哈尔滨工业大学 | Linear electromagnetic damper with serially-connected magnetic circuit structure |
| CN103219863A (en) * | 2013-04-28 | 2013-07-24 | 哈尔滨工业大学 | Polar pitch variable rectilinear vortex brake and controlling method thereof |
| CN103997185B (en) * | 2014-05-13 | 2017-02-15 | 东南大学 | Bi-directional synchronous movement linear motor |
| CN103997185A (en) * | 2014-05-13 | 2014-08-20 | 东南大学 | Bi-directional synchronous movement linear motor |
| CN105196880A (en) * | 2015-09-06 | 2015-12-30 | 哈尔滨工业大学 | AC/DC (alternating current/direct current) hybrid excitation rail eddy-current brake |
| CN105196880B (en) * | 2015-09-06 | 2018-01-30 | 哈尔滨工业大学 | Alternating current-direct current composite excitation High-Speed Eddy Braking device |
| CN105621192B (en) * | 2016-03-11 | 2019-04-30 | 河南理工大学 | Efficient permanent magnet reinforcement deadman's brake and directly drive elevator |
| CN106185682A (en) * | 2016-03-11 | 2016-12-07 | 焦作市华鹰机电技术有限公司 | High-performance electric magnet aid force deadman's brake and directly drive elevator |
| CN105621192A (en) * | 2016-03-11 | 2016-06-01 | 河南理工大学 | Efficient permanent magnet power-enhanced safety brake and direct-driven elevator |
| CN106185682B (en) * | 2016-03-11 | 2019-07-05 | 焦作市华鹰机电技术有限公司 | High-performance electric magnet aid force deadman's brake and directly drive elevator |
| CN105621193A (en) * | 2016-03-12 | 2016-06-01 | 焦作市华鹰机电技术有限公司 | High-performance electromagnetic power-enhanced safety brake and direct-driven elevator |
| CN105565107B (en) * | 2016-03-12 | 2019-03-15 | 焦作市华鹰机电技术有限公司 | The double reinforcement deadman's brakes of high-performance and cordless elevator |
| CN105565107A (en) * | 2016-03-12 | 2016-05-11 | 焦作市华鹰机电技术有限公司 | High-performance double-force augment safety brake and non-rope elevator |
| CN107124086A (en) * | 2017-05-12 | 2017-09-01 | 哈尔滨工业大学 | Mixed winding linear electromagnetic brake |
| CN111900855A (en) * | 2020-08-11 | 2020-11-06 | 哈尔滨工业大学 | High-speed eddy current brake with composite induction disc |
| CN111900855B (en) * | 2020-08-11 | 2023-03-24 | 哈尔滨工业大学 | High-speed eddy current brake with composite induction disc |
| CN112671203A (en) * | 2021-01-18 | 2021-04-16 | 哈尔滨工业大学 | High-speed linear electromagnetic propulsion and electromagnetic braking system |
| CN112671203B (en) * | 2021-01-18 | 2022-09-13 | 哈尔滨工业大学 | High-speed linear electromagnetic propulsion and electromagnetic braking system |
| CN115236510A (en) * | 2022-09-21 | 2022-10-25 | 西北工业大学 | Linear electric motor performance test bench |
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Application publication date: 20120215 |