DE102005055674B4 - Electromechanically operated brake with emergency release device - Google Patents
Electromechanically operated brake with emergency release device Download PDFInfo
- Publication number
- DE102005055674B4 DE102005055674B4 DE200510055674 DE102005055674A DE102005055674B4 DE 102005055674 B4 DE102005055674 B4 DE 102005055674B4 DE 200510055674 DE200510055674 DE 200510055674 DE 102005055674 A DE102005055674 A DE 102005055674A DE 102005055674 B4 DE102005055674 B4 DE 102005055674B4
- Authority
- DE
- Germany
- Prior art keywords
- emergency release
- brake
- lever mechanism
- release device
- toggle
- 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
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
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- 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
- F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/64—Levers
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/70—Rods
-
- 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
- F16D2127/02—Release mechanisms
-
- 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
- F16D2127/08—Self-amplifying or de-amplifying mechanisms
- F16D2127/10—Self-amplifying or de-amplifying mechanisms having wedging elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Notlösevorrichtung
zum Lösen
einer elektromechanisch betätigten
Keilbremse (1) im stromlosen Zustand, mit
– einem Hebelmechanismus (2),
der zwischen einem Widerlager (10) und einem Reibglied (13) der
Bremse (1) angeordnet ist, und
– einem elektrisch betätigten Halteglied
(7), das den Hebelmechanismus (2) im bestromten Zustand in einer
starren Position hält
und im stromlosen Zustand freigibt, so dass sich das Reibglied (13)
von einem gebremsten Element (14) lösen kann,
dadurch gekennzeichnet,
dass
der Hebelmechanismus (2) zwei Kniehebel (3–5), die im Wesentlichen senkrecht
zu einer Reibfläche
(16) und parallel zueinander verlaufen, und einen dritten Kniehebel (5)
aufweist, der etwa quer zu den beiden parallelen Kniehebeln (3,
4) verläuft
und diese miteinander verbindet.Emergency release device for releasing an electromechanically actuated wedge brake (1) in the de-energized state, with
- A lever mechanism (2) which is arranged between an abutment (10) and a friction member (13) of the brake (1), and
- An electrically operated holding member (7) which holds the lever mechanism (2) in the energized state in a rigid position and releases in the de-energized state, so that the friction member (13) can be released from a braked element (14),
characterized,
in that the lever mechanism (2) has two toggle levers (3-5) which run essentially perpendicular to a friction surface (16) and parallel to one another, and a third toggle lever (5) which is approximately transverse to the two parallel toggle levers (3, 4 ) and connects them together.
Description
Die Erfindung betrifft eine Notlösevorrichtung zum Lösen einer elektromechanisch betätigten Keilbremse, gemäß dem Oberbegriff des Patentanspruchs 1, sowie eine Bremsvorrichtung mit einer Notlösevorrichtung gemäß dem Oberbegriff des Patentanspruchs 7.The The invention relates to an emergency release device for Solve one electromechanically actuated Wedge brake, according to the preamble of claim 1, and a braking device with an emergency release device according to the generic term of claim 7.
Elektromechanisch betätigte Bremsen umfassen einen elektrisch betriebenen Aktuator, meist einen Elektromotor, der ein Reibglied betätigt, das gegen ein abzubremsendes Element, wie z.B. eine Bremsscheibe, drückt. Bei einem Ausfall des Aktuators ist es in der Regel nicht mehr möglich, die Bremse aus dem angezogenen Zustand zu lösen. Bekannte elektromechanische Bremsen umfassen daher i. d. R. eine Notlösevorrichtung, mittels der die Bremse auch bei Ausfall der Energieversorgung gelöst werden kann.electromechanical actuated Brakes include an electrically operated actuator, usually one Electric motor which actuates a friction member against a braked Element, e.g. a brake disc, presses. In case of failure of the Actuator, it is usually no longer possible, the brake from the tightened Condition to be solved. Known electromechanical brakes therefore include i. d. Pure emergency release, by means of which the brake can be released even if the power supply fails can.
Die
Möglichkeit
einer Notentriegelung ist insbesondere bei Keilbremsen wichtig.
Keilbremsen umfassen ein von einem Aktuator betätigtes Keilelement, das etwas
parallel zur Bewegungsrichtung eines abzubremsenden Elements (z.B.
einer Bremsscheibe) bewegt wird, wobei es wegen seiner Keilfläche gleichzeitig
auch in Richtung des abzubremsenden Elements gedrückt wird.
Derartige Keilbremsen sind beispielsweise aus der
Keilbremsen werden bevorzugt in einem Arbeitspunkt betrieben, an dem keine oder nur sehr geringe Druck- oder Zugkräfte auf das Keilelement ausgeübt werden müssen. Bei ungünstigen, d.h. hohen Reibwerten zwischen Reibglied und Reibfläche wird das Keilelement jedoch stärker in Bewegungsrichtung mitgenommen und kann die Bremse blockieren, wenn der Aktuator ausfällt. In einem solchen Fall muss es möglich sein, die Keilbremse auch im stromlosen Zustand wieder zu lösen.wedge brakes are preferably operated at an operating point at which no or only very small compressive or tensile forces are exerted on the wedge element have to. In case of unfavorable, i.e. high friction between the friction member and the friction surface is the Wedge element, however, stronger taken in the direction of movement and can block the brake when the actuator fails. In such a case it must be possible be able to solve the wedge brake even when de-energized.
Aus
der
Eine
andere elektromechanisch betätigte Bremse
mit einer Notlösevorrichtung
ist aus der
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Notlösevorrichtung für eine Keilbremse zu schaffen, die das Lösen der Bremse bei einem Ausfall des Aktuators ermöglicht.It Therefore, the object of the present invention is an emergency release device for one To create a wedge brake, releasing the brake in case of failure of the actuator allows.
Gelöst wird diese Aufgabe gemäß der Erfindung durch die im Patentanspruch 1 sowie im Patentanspruch 7 angegebenen Merkmale. Weitere Ausgestaltungen der Erfindung sind Gegenstand von Unteransprüchen.Is solved this task according to the invention by the specified in claim 1 and in claim 7 Characteristics. Further embodiments of the invention are the subject of dependent claims.
Ein wesentlicher Aspekt der Erfindung besteht darin, einen Hebelmechanismus vorzusehen, der im normalen Betriebszustand eine starre Verbindung zwischen der eigentlichen Bremse und einem Widerlager schafft und der die Bremse im stromlosen Zustand automatisch freigibt. Der Hebelmechanismus ist dabei so ausgelegt, dass er im starren Zustand die an der Bremse wirkenden Bremskräfte aufnimmt und im freigegebenen Zustand eine Bewegung des Reibglieds von der Reibfläche weg ermöglicht. Dies hat den wesentlichen Vorteil, dass sich die Bremse bei einer Störung des Aktuators, beispielsweise bei Stromausfall, selbsttätig löst und insbesondere nicht blockieren kann.One essential aspect of the invention is a lever mechanism provide, in the normal operating condition, a rigid connection creates between the actual brake and an abutment and which automatically releases the brake when de-energized. The lever mechanism is designed so that it is in the rigid state of the brake acting braking forces receives and in the released state, a movement of the friction member from the friction surface away allows. This has the significant advantage that the brake at a disorder of the actuator, for example, in case of power failure, automatically triggers and in particular can not block.
Der Hebelmechanismus wird vorzugsweise von einer elektrisch betätigten Halteeinrichtung, wie z.B. einem Elektromagneten, gehalten, die den Hebelmechanismus bei Energieausfall automatisch freigibt. Die Halteeinrichtung kann beispielsweise mit einem am Hebelmechanismus vorgesehenen Ankerelement zusammenwirken, das bei Stromausfall freigegeben wird.Of the Lever mechanism is preferably by an electrically operated holding device, such as. an electromagnet, which holds the lever mechanism Automatically releases in case of power failure. The holding device can for example, with an anchor element provided on the lever mechanism interact, which is released in the event of a power failure.
Gemäß einer bevorzugten Ausführungsform der Erfindung umfasst der Hebelmechanismus wenigstens einen Kniehebel, der wenigstens zwei Schenkel aufweist, die über ein Gelenk miteinander verbunden sind. Im bestromten Zustand (Normalzustand) ist der Kniehebel im Wesentlichen gestreckt und kann somit die Bremskräfte aufnehmen. Im stromlosen Zustand (Fehlerzustand) winkelt der Kniehebel vorzugsweise am Gelenk ab und gibt somit die Bremse frei. Der Kniehebel erstreckt sich vorzugsweise etwa senkrecht zur Reibfläche des gebremsten Elements.According to one preferred embodiment of Invention, the lever mechanism comprises at least one knee lever, having at least two legs connected to each other via a hinge are. When energized (normal condition) the toggle lever is in Essentially stretched and can thus absorb the braking forces. When de-energized (fault condition), the knee lever preferably angled at the joint and thus releases the brake. The toggle extends preferably approximately perpendicular to the friction surface of the braked element.
Der erfindungsgemäße Hebelmechanismus umfasst wenigstens zwei Kniehebel, die im Wesentlichen senkrecht zur Reibfläche und parallel zueinander angeordnet sind, sowie einen dritten Kniehebel, der quer zu den beiden parallelen Kniehebeln verläuft und diese miteinander verbindet. Jeder der Kniehebel umfasst vorzugsweise wenigstens zwei Schenkel, die jeweils über ein Gelenk miteinander verbunden sind.The lever mechanism according to the invention comprises at least two toggle levers, which are arranged substantially perpendicular to the friction surface and parallel to each other, and a third toggle lever which extends transversely to the two parallel toggle levers and connects them together. Each of the knee levers preferably comprises at least two legs, which are each connected to each other via a hinge.
Der erfindungsgemäße Hebelmechanismus ist vorzugsweise vorgespannt, so dass er sich automatisch in eine Freigabeposition bewegt, wenn die Halteeinrichtung ihn freigibt. Zu diesem Zweck umfasst der Hebelmechanismus vorzugsweise eine entsprechende Vorspanneinrichtung, wie z. B. eine Feder.Of the is lever mechanism according to the invention preferably biased so that it automatically moves to a release position moves when the holding device releases it. To this end the lever mechanism preferably comprises a corresponding pretensioning device, such as B. a spring.
Die Vorspanneinrichtung kann beispielsweise an einem der Kniehebel angreifen, um diesen in die abgewinkelte Position zu bewegen.The Biasing means may, for example, engage one of the toggle levers, to move it to the angled position.
Die Erfindung wird nachstehend anhand der beigefügten Zeichnungen beispielhaft näher erläutert. Es zeigen:The Invention will be exemplified below with reference to the accompanying drawings explained in more detail. It demonstrate:
Bei
der hier dargestellten Bremse
Bei
einem Bremsvorgang wird die bewegliche Keilplatte
Der
Bremsmechanismus umfasst ferner eine feststehende Keilplatte
Die
Notlosevorrichtung
Die
Notlösevorrichtung
Bei
einem Stromausfall gibt das Halteglied
Der
gelöste
Zustand ist in
Das
Lösen der
Bremse
Die
Feder
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510055674 DE102005055674B4 (en) | 2005-11-22 | 2005-11-22 | Electromechanically operated brake with emergency release device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510055674 DE102005055674B4 (en) | 2005-11-22 | 2005-11-22 | Electromechanically operated brake with emergency release device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102005055674A1 DE102005055674A1 (en) | 2007-05-31 |
DE102005055674B4 true DE102005055674B4 (en) | 2008-01-31 |
Family
ID=38037597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510055674 Expired - Fee Related DE102005055674B4 (en) | 2005-11-22 | 2005-11-22 | Electromechanically operated brake with emergency release device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005055674B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008053740A1 (en) | 2008-10-29 | 2010-05-06 | Schaeffler Kg | Braking and clamping device for linear guide and round table, has linear adjustable actuator, which is operated by knuckle joint mechanism of adjustment of two diametrically facing stamps |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006003132B4 (en) * | 2006-01-23 | 2008-06-19 | Siemens Ag | Emergency release device for a brake |
DE102007043968A1 (en) | 2007-07-04 | 2009-01-08 | Continental Teves Ag & Co. Ohg | Electromechanical brake device e.g. parking brake, for e.g. passenger car, has bodies mounted such that one body is shifted by shifting of other body to prevent rotation of disk in voltage-free and failure condition of the power supply |
DE102015207099B3 (en) * | 2015-04-20 | 2016-07-28 | Saf-Holland Gmbh | actuator |
WO2017202462A1 (en) | 2016-05-25 | 2017-11-30 | Siemens Ag Österreich | Parking brake for a chassis of a rail vehicle |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19824771C1 (en) * | 1998-06-03 | 1999-09-23 | Lucas Ind Plc | Actuator assembly for vehicle brake with drive which is connected with input side of lever arrangement and output side of which operates at least one brake friction element |
JP2002357234A (en) * | 2001-05-31 | 2002-12-13 | Nissan Motor Co Ltd | Electric brake unit |
DE10218825A1 (en) * | 2002-04-26 | 2003-11-13 | Estop Gmbh | Parking brake mechanism for use with road vehicle disk brake is combined with electromechanical self-servo braking system incorporating sliding wedges |
DE10154178B4 (en) * | 2001-05-21 | 2004-05-13 | Estop Gmbh | Self-energizing electromechanical brake with variable wedge angle |
EP1460301A2 (en) * | 2003-03-18 | 2004-09-22 | Continental Teves AG & Co. oHG | Elektromechanically actuated disc brake |
DE10319082B3 (en) * | 2003-04-28 | 2004-12-16 | Estop Gmbh | Electromechanical brake for rotary components has actuator arrangement with separately controllable actuators, each associated with frictional element moved along wedge surface to press on braked part |
DE102005049785B3 (en) * | 2005-10-18 | 2007-05-03 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake with electromotive actuator |
-
2005
- 2005-11-22 DE DE200510055674 patent/DE102005055674B4/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19824771C1 (en) * | 1998-06-03 | 1999-09-23 | Lucas Ind Plc | Actuator assembly for vehicle brake with drive which is connected with input side of lever arrangement and output side of which operates at least one brake friction element |
DE10154178B4 (en) * | 2001-05-21 | 2004-05-13 | Estop Gmbh | Self-energizing electromechanical brake with variable wedge angle |
JP2002357234A (en) * | 2001-05-31 | 2002-12-13 | Nissan Motor Co Ltd | Electric brake unit |
DE10218825A1 (en) * | 2002-04-26 | 2003-11-13 | Estop Gmbh | Parking brake mechanism for use with road vehicle disk brake is combined with electromechanical self-servo braking system incorporating sliding wedges |
EP1460301A2 (en) * | 2003-03-18 | 2004-09-22 | Continental Teves AG & Co. oHG | Elektromechanically actuated disc brake |
DE10319082B3 (en) * | 2003-04-28 | 2004-12-16 | Estop Gmbh | Electromechanical brake for rotary components has actuator arrangement with separately controllable actuators, each associated with frictional element moved along wedge surface to press on braked part |
DE102005049785B3 (en) * | 2005-10-18 | 2007-05-03 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake with electromotive actuator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008053740A1 (en) | 2008-10-29 | 2010-05-06 | Schaeffler Kg | Braking and clamping device for linear guide and round table, has linear adjustable actuator, which is operated by knuckle joint mechanism of adjustment of two diametrically facing stamps |
Also Published As
Publication number | Publication date |
---|---|
DE102005055674A1 (en) | 2007-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
8339 | Ceased/non-payment of the annual fee |