DE1030121B - Electromagnetically operated device for braking rotational movements - Google Patents

Electromagnetically operated device for braking rotational movements

Info

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
Application number
DEW15937A
Other languages
German (de)
Inventor
Siegfried Paul
Johannes Schiller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H Wohlenberg GmbH and Co KG
Original Assignee
H Wohlenberg GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by H Wohlenberg GmbH and Co KG filed Critical H Wohlenberg GmbH and Co KG
Priority to DEW15937A priority Critical patent/DE1030121B/en
Publication of DE1030121B publication Critical patent/DE1030121B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/28Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged apart from the brake
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00Combinations of couplings and brakes; Combinations of clutches and brakes
    • F16D67/02Clutch-brake combinations
    • F16D67/06Clutch-brake combinations electromagnetically actuated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D2065/024Braking 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00Type of actuator operation force
    • F16D2121/18Electric or magnetic
    • F16D2121/20Electric or magnetic using electromagnets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2127/00Auxiliary mechanisms
    • F16D2127/008Trigger 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)

PATIiNTANSPßt1C:l3E: 1. Elektromagnetisch betätigte Vorrichtung zum Bremsen von Drehbewegungen, insbesondere einer eine Bremsscheibe tragenden Welle, dadurch gekennzeichnet, daß zwischen den die Bremskraft erzeugenden Elektromagneten (13) und den diese Kraft weiterleitenden Bremshebel (9) eine als Kraftspeicher dienende Feder (15) geschaltet ist und daß der Bremshebel in der Bremslösestellung verriegelbar ist. PATIiNTANSPSt1C: l3E: 1. Electromagnetically operated device for Braking of rotary movements, in particular of a shaft carrying a brake disc, characterized in that between the electromagnets generating the braking force (13) and the brake lever (9) which transmits this force as an energy storage device Spring (15) is switched and that the brake lever can be locked in the brake release position is. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zur Verriegelung des Bremshebels (9) eine Klinke (10) dient, die durch einen Hilfsmagneten (19) steuerbar ist. In Betracht gezogene Druckschriften Deutsche Patentschriften Nr. 91846, 259 732, 295 187, 538 101.2. Apparatus according to claim 1, characterized in that a pawl (10) is used to lock the brake lever (9), which is controllable by an auxiliary magnet (19). Considered publications German patent specifications No. 91 846, 259 732, 295 187, 538 101.
DEW15937A 1955-02-07 1955-02-07 Electromagnetically operated device for braking rotational movements Pending DE1030121B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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