CN202833778U - Permanent magnet brake - Google Patents
Permanent magnet brake Download PDFInfo
- Publication number
- CN202833778U CN202833778U CN 201220340479 CN201220340479U CN202833778U CN 202833778 U CN202833778 U CN 202833778U CN 201220340479 CN201220340479 CN 201220340479 CN 201220340479 U CN201220340479 U CN 201220340479U CN 202833778 U CN202833778 U CN 202833778U
- Authority
- CN
- China
- Prior art keywords
- utmost point
- permanent magnet
- pole
- external
- armature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a permanent magnet brake. A coil is wound on the external wall of an internal pole, the external circumferential surface of the internal pole and one internal circumferential surface of an external pole surround the coil, only one surface of the coil is exposed and faces an armature, the armature connects a flange through tight rivets and a reed, and the reed is arranged between the armature and the flange. The internal pole is arranged inside the external pole, the external pole is fixedly connected with a box body through bolts, one internal surface of the external pole is located with one external surface of the internal pole through a locating sleeve, and a permanent magnet is arranged between two locating surface. The permanent magnet is positioned among the external circumferential surface of the locating sleeve and the inner circumferential surface of the external pole and the external surface of the internal pole, and the internal pole, the permanent magnet and the external pole are connected through rivets. The permanent magnet brake transits torsion through the fixation of the external pole, the connection rivets only play the role of connection, bear no shear force, and therefore the purpose of preventing movement is achieved, the stability of tortion and the rigidity of product are improved, and unnecessary maintenance is reduced.
Description
Technical field
The utility model belongs to the break technical field, particularly relates to a kind of permanent-magnet brake.
Background technique
In the break field, electromagnetic type, electric lost, band brake type etc. are arranged, all extensively adopt in machine-building, mining machinery, metallurgical system, building tower crane, textile manufacturing machine, package packing machine, printing machinery, banking system, national defense industry etc.But in emerging field, also use a kind of permanent-magnet brake such as medical apparatus and special electromechanics; this permanent-magnet brake has the effect of stable brake; and can also play the overload protection effect; adopt in a large number at X fluoroscopic machine, CT machine at present, and progressively extend in special machines and the automation transmission system.
Present employed permanent-magnet brake, its major parameter is moment of torsion (Nm), it is to produce moment of torsion by the friction between the different materials, because frictional force is to lean on the suction of permanent magnet that both ends of the surface are compressed, by shown in Figure 1, the interior utmost point is fixed by bolt and casing, the utmost point passes out braking torque at once outside armature compresses, but the outer utmost point depends on the interior utmost point and is connected as a single entity by connection rivet, the shearing force that this moment, the outer utmost point was subject to all focuses on the connection rivet, again because gapped error when assembling between the outer utmost point and the interior utmost point, make so the outer utmost point produce displacement, thereby affected the stability of moment of torsion, sometimes because the phenomenon of rupture of connection rivet also can appear in extraneous factor, just cause to a certain extent the frequent of maintenance, affected the stability that permanent-magnet brake uses.
Summary of the invention
The utility model provides a kind of moment of torsion stability that improves for solving the technical problem that exists in the known technology, improves product rigidity, reduces the permanent-magnet brake of unnecessary maintenance.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of permanent-magnet brake, include the outer utmost point, coil, permanent magnet, the interior utmost point, armature, the tightening rivet, reed and flange, described coil winding is on the outer wall of the interior utmost point, an inner circumferential surface of the external peripheral surface of the described interior utmost point and the outer utmost point surrounds coil, a surface of only exposing coil, a surface of exposing faces armature, described armature is by tightening rivet and reed adpting flange, described reed is between armature and flange, the described interior utmost point place outer extremely in, the described outer utmost point is fixedly connected with casing by bolt, an internal surface of the described outer utmost point is by an outer surface location of setting sleeve and the interior utmost point, be provided with permanent magnet between two locating faces, and permanent magnet is between an outer surface of the inner peripheral surface of the outer peripheral surface of setting sleeve and the outer utmost point and the interior utmost point, the utmost point in connecting by connection rivet, permanent magnet and the outer utmost point.
Described permanent magnet produces magnetic pull armature is sucked, and forms the closed-loop path with the outer utmost point and the interior utmost point, is provided with a non-working-gap in the described closed-loop path.
Advantage and the good effect that the utlity model has are:
1. owing to be the fixed delivery moment of torsion of the outer utmost point, connection rivet only plays the effect of connection, is not subjected to shearing force, has so just reached the purpose that prevents play, has improved the stability of moment of torsion and the rigidity of product, has reduced unnecessary maintenance.
2. owing to permanent magnet is surrounded by the outer utmost point and the interior utmost point, this product surface magnetic intensity has reduced by tens times compared with before-improvement, therefore greatly improved electromagnetic compatibility of the present utility model (EMC), more applicable to places such as power station, broadcasting, TV, communication, navigation, precision equipment, hospital, subway control gear, more environmental protection.
3. owing in the closed-loop path, also be provided with a non-working-gap, so just shorten the disengagement time, improved frequency of utilization.
Description of drawings
Fig. 1 is that permanent-magnet brake improves the pre-structure schematic representation;
Fig. 2 is the utility model structural representation.
Among Fig. 1 and Fig. 2, the 1. outer utmost point, 2. coil, 3. permanent magnet, 4. setting sleeve, 5. connection rivet, 6. armature, 7. tightening rivet, 8. reed, 9. flange, the 10. interior utmost point.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 2, a kind of permanent-magnet brake, include the outer utmost point 1, coil 2, permanent magnet 3, setting sleeve 4, connection rivet 5, armature 6, tightening rivet 7, reed 8, flange 9, the interior utmost point 10, coil 2 is wound on the outer wall of the interior utmost point 10, an inner circumferential surface of the external peripheral surface of the interior utmost point 10 and the outer utmost point 1 surrounds coil 2, a surface of only exposing coil 2, a surface of exposing faces armature 6, armature 6 is connected with flange 9 by tightening rivet 7 and reed 8, reed 8 is between armature 6 and flange 9, and namely tightening rivet 7 connects armature 6, reed 8 and flange 9.To place with the interior utmost point 10 of coil 2 in the outer utmost point 1, the outer utmost point 1 is fixedly connected with casing by bolt, an internal surface of the outer utmost point 1 is by the outer surface location of setting sleeve 4 with the interior utmost point 10, be provided with permanent magnet 3 between two locating faces, and permanent magnet 3 is between an outer surface of the inner peripheral surface of the outer peripheral surface of setting sleeve 4 and the outer utmost point 1 and the interior utmost point 10, that is to say that permanent magnet 3 is surrounded by the outer utmost point 1 and the interior utmost point 10, the utmost point 10, permanent magnet 3 and the outer utmost point 1 in connecting by connection rivet 5 again.
Working principle of the present utility model is: in normality lower time,, permanent magnet 3 produces magnetic pulls, and magnetic pull sucks armature 6, forms closed-loop paths with the outer utmost point 1 and the interior utmost point 10, is the master end.Tightening rivet 7 is riveted together armature 6 by reed 8 and flange 9, formed slave end, and be braking state this moment.After coil 2 energisings, produced reverse magnetic pull, oppositely magnetic pull is offset the magnetic force of permanent magnet 3 gradually, when reaching mutual balance, through the reaction force of reed 8, rapidly armature 6 is thrown off, at once master end and slave end are thrown off, owing in the closed-loop path, also be provided with a non-working-gap, so just shortened the disengagement time, improved frequency of utilization.
The utility model is owing to be the fixed delivery moment of torsion of the outer utmost point, and 5 effects of playing connection of connection rivet are not subjected to shearing force, have so just reached the purpose that prevents play, have improved the stability of moment of torsion and the rigidity of product, have reduced unnecessary maintenance.
In the utility model, because permanent magnet 3 is surrounded by the outer utmost point 1 and the interior utmost point 10, this product surface magnetic intensity has reduced by tens times compared with before-improvement, therefore greatly improved electromagnetic compatibility of the present utility model (EMC), more applicable to places such as power station, broadcasting, TV, communication, navigation, precision equipment, hospital, subway control gear, more environmental protection.
Claims (2)
1. permanent-magnet brake, include the outer utmost point (1), coil (2), permanent magnet (3), the interior utmost point (10), armature (6), tightening rivet (7), reed (8) and flange (9), described coil (2) is wound on the outer wall of the interior utmost point (10), an inner circumferential surface of the external peripheral surface of the described interior utmost point (10) and the outer utmost point (1) surrounds coil (2), a surface of only exposing coil (2), a surface of exposing faces armature (6), described armature (6) is by tightening rivet (7) and reed (8) adpting flange (9), described reed (8) is positioned between armature (6) and the flange (9), it is characterized in that, the described interior utmost point (10) places in the outer utmost point (1), the described outer utmost point (1) is fixedly connected with casing by bolt, an internal surface of the described outer utmost point (1) is by the outer surface location of setting sleeve (4) with the interior utmost point (10), be provided with permanent magnet (3) between two locating faces, and permanent magnet (3) is positioned between the outer surface of the inner peripheral surface of the outer peripheral surface of setting sleeve (4) and the outer utmost point (1) and the utmost point (10), the utmost point (10) in connecting by connection rivet (5), permanent magnet (3) and the outer utmost point (1).
2. permanent-magnet brake according to claim 1 is characterized in that, described permanent magnet (3) produces magnetic pull armature (6) is sucked, and forms the closed-loop path with the outer utmost point (1) and the interior utmost point (10), is provided with a non-working-gap in the described closed-loop path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340479 CN202833778U (en) | 2012-07-13 | 2012-07-13 | Permanent magnet brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340479 CN202833778U (en) | 2012-07-13 | 2012-07-13 | Permanent magnet brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833778U true CN202833778U (en) | 2013-03-27 |
Family
ID=47945490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220340479 Expired - Fee Related CN202833778U (en) | 2012-07-13 | 2012-07-13 | Permanent magnet brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833778U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912609A (en) * | 2014-04-24 | 2014-07-09 | 迈柯唯医疗设备(苏州)有限公司 | Snap-in electromagnetic brake |
| CN105927682A (en) * | 2016-06-27 | 2016-09-07 | 天津怡合离合器制造有限公司 | Power losing tooth embedding permanent magnetic brake |
| CN107504103A (en) * | 2017-07-28 | 2017-12-22 | 扬州工业职业技术学院 | A kind of permanent magnet brake for electricity losing and its detection method |
| WO2018126353A1 (en) * | 2017-01-04 | 2018-07-12 | Siemens Aktiengesellschaft | Permanent magnet brake and servo drive motor |
-
2012
- 2012-07-13 CN CN 201220340479 patent/CN202833778U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912609A (en) * | 2014-04-24 | 2014-07-09 | 迈柯唯医疗设备(苏州)有限公司 | Snap-in electromagnetic brake |
| CN103912609B (en) * | 2014-04-24 | 2016-05-18 | 迈柯唯医疗设备(苏州)有限公司 | A kind of snap-in electromagnetic brake |
| CN105927682A (en) * | 2016-06-27 | 2016-09-07 | 天津怡合离合器制造有限公司 | Power losing tooth embedding permanent magnetic brake |
| WO2018126353A1 (en) * | 2017-01-04 | 2018-07-12 | Siemens Aktiengesellschaft | Permanent magnet brake and servo drive motor |
| CN107504103A (en) * | 2017-07-28 | 2017-12-22 | 扬州工业职业技术学院 | A kind of permanent magnet brake for electricity losing and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20170713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |