DE1030121B - Electromagnetically operated device for braking rotational movements - Google Patents
Electromagnetically operated device for braking rotational movementsInfo
- Publication number
- DE1030121B DE1030121B DEW15937A DEW0015937A DE1030121B DE 1030121 B DE1030121 B DE 1030121B DE W15937 A DEW15937 A DE W15937A DE W0015937 A DEW0015937 A DE W0015937A DE 1030121 B DE1030121 B DE 1030121B
- Authority
- DE
- Germany
- Prior art keywords
- brake
- electromagnetically operated
- operated device
- braking
- rotational movements
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/28—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged apart from the brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
- F16D67/02—Clutch-brake combinations
- F16D67/06—Clutch-brake combinations electromagnetically actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/024—Braking members; Mounting thereof the braking surface being inclined with respect to the rotor's axis of rotation at an angle other than 90 degrees, e.g. comprising a conical rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/008—Trigger mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
Description
Elektromagnetisch betätigte Vorrichtung zum Bremsen von Drehbewegungen Soll ein Bewegungsvorgang innerhalb sehr kurzer Zeit stillgesetzt werden, z. B. die Spindel eines selbsttätig gesteuerten Vorschubaggregates an Werkzeugmaschinen, so bedient man sich allgemein elektromagnetisch betätigter Bremskupplungen. Diese haben jedoch den Nachteil, daß ihr Bremsmoment spannungsabhängig ist und daß auftretende magnetische Remanenz das Lösen der Kupplung verzögert. Infolgedessen kann oft die angestrebte Genauigkeit der selbsttätigen Steuerung nicht erreicht werden.Electromagnetically operated device for braking rotary movements If a movement process is to be stopped within a very short time, e.g. B. the spindle of an automatically controlled feed unit on machine tools, so one generally makes use of electromagnetically actuated brake clutches. These however, have the disadvantage that their braking torque is voltage-dependent and that occurring Magnetic remanence delays the release of the clutch. As a result, the the desired accuracy of the automatic control cannot be achieved.
Die Erfindung stellt sich die Aufgabe, diesen Nachteil zu beseitigen und eine Einrichtung zu schaffen, die weitgehend unabhängig von Netzspannungsschwankungen und frei von unbeherrschbaren Verzögerungen ist.The object of the invention is to eliminate this disadvantage and to create a facility that is largely independent of mains voltage fluctuations and is free from uncontrollable delays.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zwischen den die Bremskraft erzeugenden Elektromagneten und den diese Kraft weiterleitenden Bremshebel eine als Kraftspeicher dienende Feder geschaltet ist und daß der Bremshebel in der Lösestellung verriegelbar ist. Nach der Erfindung wird also die Bremskraft elektromagnetisch erzeugt; sie wird aber in einer Federkraft gespeichert, und diese Federkraft ist es, die das Anlegen der Bremse bewirkt, sobald sie freigegeben wird. Auf diese Weise ist die Unabhängigkeit von der Netzspannung und von Remanenz erreicht.This object is achieved in that between the the electromagnet generating the braking force and the brake lever which transmits this force a spring serving as an energy storage device is connected and that the brake lever is in the Release position is lockable. According to the invention, the braking force is electromagnetic generated; but it is stored in a spring force, and this spring force is it that causes the brake to be applied as soon as it is released. In this way the independence from the mains voltage and from remanence is achieved.
Zur Sperrung und zur Auslösung der Federkraft kann eine am Bremshebel angreifende Klinke dienen, die durch einen Hilfsmagneten gesteuert wird. Die Stromaufnahme des Hilfsmagneten, der nur einen Auslöseimpuls zu geben braucht, ist klein, so daß sich Netzspannungsschwankungen hier praktisch nicht auswirken. Gegebenenfalls kann aber das Auslösen der Klinke auch auf andere Weise als elektromagnetisch, z. B. mechanisch, erfolgen.To lock and release the spring force, one can be placed on the brake lever attacking pawl, which is controlled by an auxiliary magnet. The power consumption of the auxiliary magnet, which only needs to give a trigger pulse, is small, so that Mains voltage fluctuations have practically no effect here. If necessary, can but the release of the pawl also in other ways than electromagnetic, z. B. mechanically.
In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes schematisch dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention shown schematically.
Mit der angetriebenen Welle 1, deren schlagartiges Stillsetzen ermöglicht werden soll, ist durch Keilverzahnung die Kupplungs- und Bremsmuffe 2 verbunden, auf die eine Druckfeder 3, im Sinne der Kupplung des Konus 4 mit dem Konus 5 der Keilriemenscheibe 6 einwirkt. Gegen einen Bund 7 der Muffe 2 liegt der eine Arm eines bei 8 drehbar gelagerten Doppelhebels 9 an, der in der gezeichneten Stellung (eingerückte Kupplung 4, 5) verriegelt ist durch die Klinke 10, die mittels eines kleinen Elektromagneten 11 gesteuert wird. Zur Verstellung des Hebels 9 im Sinne des Ausrückens der Kupplung 4, 5 und Anziehens der Bremse 4; 12 dient der Elektromagnet 13, dessen Anker 14 an der Zugfeder 15 angreift, deren anderes Ende mit dem Hebel 9 verbunden ist.The clutch and brake sleeve 2 is connected to the driven shaft 1, whose abrupt shutdown is to be made possible, by splines, on which a compression spring 3 acts in the sense of the coupling of the cone 4 with the cone 5 of the V-belt pulley 6. One arm of a double lever 9 rotatably mounted at 8 rests against a collar 7 of the sleeve 2 and is locked in the position shown (engaged clutch 4, 5) by the pawl 10, which is controlled by a small electromagnet 11. To adjust the lever 9 in the sense of disengaging the clutch 4, 5 and applying the brake 4; 12 is used by the electromagnet 13, the armature 14 of which engages the tension spring 15, the other end of which is connected to the lever 9.
Beim Erregen des Elektromagneten 13, findet zunächst noch keine Verstellung des Hebels 9 statt, sondern es wird nur die Zugfeder 15 gespannt und damit eine Speicherkraft geschaffen. Diese Speicherkraft wird in dem Augenblick nutzbar, in dem durch Einschalten des Hilfsmagneten 19 die Klinke 10 hochgezogen und damit der Hebel 9 entriegelt wird.When the electromagnet 13 is energized, there is initially no adjustment of the lever 9, but only the tension spring 15 is tensioned and thus a storage force is created. This storage power can be used at the moment when the pawl 10 is pulled up by switching on the auxiliary magnet 19 and the lever 9 is thus unlocked.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW15937A DE1030121B (en) | 1955-02-07 | 1955-02-07 | Electromagnetically operated device for braking rotational movements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW15937A DE1030121B (en) | 1955-02-07 | 1955-02-07 | Electromagnetically operated device for braking rotational movements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1030121B true DE1030121B (en) | 1958-05-14 |
Family
ID=7595634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW15937A Pending DE1030121B (en) | 1955-02-07 | 1955-02-07 | Electromagnetically operated device for braking rotational movements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1030121B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022053398A1 (en) * | 2020-09-10 | 2022-03-17 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor having electromagnetically actuatable brake |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE295187C (en) * | ||||
DE259732C (en) * | ||||
DE91846C (en) * | ||||
DE538101C (en) * | 1931-11-11 | Aeg | Backstop for switch or contact lever |
-
1955
- 1955-02-07 DE DEW15937A patent/DE1030121B/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE295187C (en) * | ||||
DE259732C (en) * | ||||
DE91846C (en) * | ||||
DE538101C (en) * | 1931-11-11 | Aeg | Backstop for switch or contact lever |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022053398A1 (en) * | 2020-09-10 | 2022-03-17 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor having electromagnetically actuatable brake |
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