DE10208641B4 - Disc brake with automatic adjuster - Google Patents
Disc brake with automatic adjuster Download PDFInfo
- Publication number
- DE10208641B4 DE10208641B4 DE2002108641 DE10208641A DE10208641B4 DE 10208641 B4 DE10208641 B4 DE 10208641B4 DE 2002108641 DE2002108641 DE 2002108641 DE 10208641 A DE10208641 A DE 10208641A DE 10208641 B4 DE10208641 B4 DE 10208641B4
- Authority
- DE
- Germany
- Prior art keywords
- brake
- piston
- nut
- brake piston
- mother
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 241001165786 Sclerolaena tetracuspis Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
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
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/08—Brake cylinders other than ultimate actuators
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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
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
- F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc 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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0062—Partly lined, i.e. braking surface extending over only a part of the disc circumference
-
- 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
- F16D2121/02—Fluid pressure
-
- 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
- F16D2121/14—Mechanical
-
- 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
- F16D2123/00—Multiple operation forces
-
- 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
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/06—Pistons
-
- 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
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/26—Cranks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
Abstract
Scheibenbremse (1) mit einem Bremsgehäuse (3), das eine Zylinderbohrung (2) zur verschiebbaren Anordnung eines Bremskolbens (4) aufweist, mit einer Kraftübertragungsvorrichtung (8) zur Beaufschlagung des Bremskolbens (4) mit einer Betätigungskraft, mit einer zwischen der Kraftübertragungsvorrichtung (8) und dem Bremskolben (4) angeordneten automatischen Nachstellvorrichtung (40), die eine im Bremsgehäuse (3) axial verschiebbare Spindel (11) und eine auf die Spindel (11) aufgeschraubte Mutter (12) aufweist, und mit einem Reibkonus (14, 15), der eine erste Konusfläche (14) an der Mutter (12) und eine zugehörige zweite Konusfläche (15) am Bremskolben (4) umfasst, dadurch gekennzeichnet, dass die Nachstellvorrichtung (40) einen im Bremskolben (4) hydraulisch verschiebbar angeordneten Kolben (32) aufweist, der lösbar mit der Mutter (12) verbunden ist, wobei zwischen dem Kolben (32) und der Mutter (12) ein Spalt (S1, S2) ausgebildet ist, und die erste Konusfläche (14) an der Mutter (12) die zugehörige zweite Konusfläche (15) am Bremskolben (4) radial überragt.Disc brake (1) having a brake housing (3), which has a cylinder bore (2) for the displaceable arrangement of a brake piston (4), with a power transmission device (8) for acting on the brake piston (4) with an actuating force, with one between the power transmission device ( 8) and the brake piston (4) arranged automatic adjusting device (40) having a brake housing (3) axially displaceable spindle (11) and a screwed onto the spindle (11) nut (12), and with a Reibkonus (14, 15), which comprises a first conical surface (14) on the nut (12) and an associated second conical surface (15) on the brake piston (4), characterized in that the adjusting device (40) has a piston arranged hydraulically displaceably in the brake piston (4) (32) which is releasably connected to the nut (12), wherein between the piston (32) and the nut (12) has a gap (S1, S2) is formed, and the first conical surface (14) on the nut (12) the associated second conical surface (15) on the brake piston (4) projects radially beyond.
Description
Die Erfindung betrifft eine Scheibenbremse für Kraftfahrzeuge mit automatischer Nachstellvorrichtung gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a disc brake for motor vehicles with automatic adjusting device according to the preamble of
Eine gattungsgemäße Scheibenbremse geht aus der
Weiterhin ist eine Scheibenbremse mit Nachstellvorrichtung aus der
Angesichts dessen ist es die Aufgabe der Erfindung, eine Scheibenbremse mit automatischer Nachstellvorrichtung anzugeben, deren zuverlässige Funktion bei jedem Betriebszustand der Scheibenbremse sowie auch bei ungünstigen Fertigungstoleranzen an einzelnen Bremsenbauteilen gewährleistet ist.In view of this, it is the object of the invention to provide a disc brake with automatic adjusting device whose reliable function is ensured at each operating state of the disc brake as well as unfavorable manufacturing tolerances on individual brake components.
Gelöst wird diese Aufgabe bei einer gattungsgemäßen Scheibenbremse mit automatischer Nachstellvorrichtung zusammen mit den kennzeichnenden Merkmalen nach Patentanspruch 1 indem die Nachstellvorrichtung einen im Bremskolben verschiebbar angeordneten Kolben aufweist, der lösbar mit der Mutter verbunden ist, wobei zwischen dem Kolben und der Mutter ein Spalt ausgebildet ist. Der Kolben sorgt dabei für eine erweiterte Funktionalität der Nachstellvorrichtung, indem er eine Nachstellung bei sehr hohen Betätigungskräften während einer Betriebsbremsung unterbindet. Die spielbehaftete Verrastung des Kolbens an der Mutter unter Ausbildung eines zwischenliegenden Spaltes sorgt im Falle einer hydraulischen Scheibenbremse für eine bessere Entlüftbarkeit des Bremsgehäuses. Um Fehlfunktionen, z. B. eine Verklemmen, am Reibkonus zu verhindern, ist die erste Konusfläche an der Mutter größer als die zugehörige zweite Konusfläche am Bremskolben ausgebildet. Damit überragt die Mutterkonusfläche die Kolbenkonusfläche zumindest einseitig in radialer Richtung. Insbesondere ist vorgesehen, dass die erste Konusfläche an der Mutter die zugehörige zweite Konusfläche am Bremskolben sowohl an ihrem Innen- als auch an ihrem Außendurchmesser radial überragt. Demzufolge wird die Entstehung von Unregelmäßigkeiten an den Konusflächen, z. B. Graten, Rillen, Vertiefungen etc., durch die die Funktion des Reibkonus beeinträchtigt werden könnte, verhindert.This object is achieved in a generic disc brake with automatic adjusting device together with the characterizing features of
Eine vorteilhafte Ausführung Scheibenbremse mit Nachstellvorrichtung wird dadurch erreicht, dass die Mutter gegenüber dem Bremskolben aus einem Werkstoff höherer Festigkeit hinsichtlich der Gefahr plastischer Verformungen besteht. Vor allem besitzt die Mutter gegenüber dem Bremskolben eine höhere Werkstoffhärte. Die genannten Verformungen infolge hoher Belastungen während des Bremsenbetriebs können somit lediglich an der Konusfläche des Bremskolbens und nicht an der Konusfläche der Mutter auftreten. Dies wirkt sich jedoch im wesentlichen nicht nachteilig auf die Funktion des Reibkonus aus. Durch die erfindungsgemäße Dimensionierung der Konusflächen wird insbesondere verhindert, dass sich die Konusfläche der Mutter nur abschnittsweise in die Konusfläche des Bremskolbens eindrückt.An advantageous embodiment disc brake with adjuster is achieved in that the nut relative to the brake piston consists of a material of higher strength in terms of the risk of plastic deformation. Above all, the nut has opposite the brake piston a higher material hardness. The said deformations due to high loads during brake operation can thus occur only on the conical surface of the brake piston and not on the conical surface of the nut. However, this does not substantially adversely affect the function of the friction cone. The dimensioning of the conical surfaces according to the invention prevents, in particular, that the conical surface of the nut only partially presses into the conical surface of the brake piston.
Zur weiteren Steigerung der Zuverlässigkeit der Reibkonusfunktion ist vorgesehen, dass die jeweiligen Neigungswinkel der Konusflächen derart aufeinander abgestimmt sind, dass die erste Konusfläche der Mutter im jeweiligen Betriebszustand der Scheibenbremse zunächst im Bereich des Außendurchmessers der zweiten Konusfläche am Bremskolben zur Anlage kommt. Damit werden vorteilhafte Reibverhältnisse am Reibkonus erzielt.To further increase the reliability of the Reibkonusfunktion is provided that the respective inclination angle of the cone surfaces are coordinated so that the first conical surface of the nut in the respective operating state of the disc brake initially comes in the region of the outer diameter of the second conical surface on the brake piston to the plant. This advantageous frictional conditions are achieved on Reibkonus.
Ein erfindungsgemäßes Ausführungsbeispiel der Scheibenbremse wird nachfolgend anhand der Zeichnungen näher erläutert.An inventive embodiment of the disc brake will be explained in more detail with reference to the drawings.
Es zeigt:It shows:
In den Figuren erkennt man einen Teil eines Bremsengehäuses
Für eine hydraulische Betätigung der Scheibenbremse
Die Scheibenbremse
Die Kraftübertragungsvorrichtung
Zur Beendigung der mechanischen Betätigung wird die Betätigungswelle
Eine im Inneren des Bremskolbens
Im Falle einer hydraulischen Betätigung, bei Beaufschlagung des Druckraumes
In einer Bohrung
Die Funktion des Kolbens
Um eine von den auftretenden Fertigungstoleranzen unabhängige, zuverlässige Funktion des Reibkonus
Eine weitere vorteilhafte Variante des Reibkonus
Die beschriebenen erfindungsgemäßen Maßnahmen am Reibkonus
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002108641 DE10208641B4 (en) | 2002-02-28 | 2002-02-28 | Disc brake with automatic adjuster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002108641 DE10208641B4 (en) | 2002-02-28 | 2002-02-28 | Disc brake with automatic adjuster |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10208641A1 DE10208641A1 (en) | 2003-09-11 |
DE10208641B4 true DE10208641B4 (en) | 2014-10-09 |
Family
ID=27740503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002108641 Expired - Fee Related DE10208641B4 (en) | 2002-02-28 | 2002-02-28 | Disc brake with automatic adjuster |
Country Status (1)
Country | Link |
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DE (1) | DE10208641B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013223962A1 (en) * | 2013-11-22 | 2015-05-28 | Continental Teves Ag & Co. Ohg | Piston arrangement for a disc brake |
CN107191512A (en) * | 2017-07-06 | 2017-09-22 | 浙江春风动力股份有限公司 | A kind of motor vehicle and its self compensation brake gear |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2143575A1 (en) * | 1971-08-31 | 1973-03-15 | Teves Gmbh Alfred | BRAKE EQUIPPED WITH AN AUTOMATIC ADJUSTMENT DEVICE |
GB1494221A (en) * | 1974-02-16 | 1977-12-07 | Girling Ltd | Brake adjusters |
DE2724129A1 (en) * | 1977-05-27 | 1978-11-30 | Knorr Bremse Gmbh | Automatic adjustment of vehicular hydraulic brake cylinder piston - uses nut locked by expander shanks actuated by cylinder pressure via disc |
DE3136958C2 (en) * | 1981-09-17 | 1989-06-22 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
DE3802017A1 (en) * | 1988-01-25 | 1989-07-27 | Teves Gmbh Alfred | Automatic adjusting device for a disc brake |
DE3410249C2 (en) * | 1984-03-21 | 1992-01-09 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
US5219047A (en) * | 1989-04-25 | 1993-06-15 | General Motors Corp. | Disc brake caliper assembly |
DE19521634A1 (en) * | 1995-06-14 | 1996-12-19 | Teves Gmbh Alfred | Disc brake with automatic adjustment device |
-
2002
- 2002-02-28 DE DE2002108641 patent/DE10208641B4/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2143575A1 (en) * | 1971-08-31 | 1973-03-15 | Teves Gmbh Alfred | BRAKE EQUIPPED WITH AN AUTOMATIC ADJUSTMENT DEVICE |
GB1494221A (en) * | 1974-02-16 | 1977-12-07 | Girling Ltd | Brake adjusters |
DE2724129A1 (en) * | 1977-05-27 | 1978-11-30 | Knorr Bremse Gmbh | Automatic adjustment of vehicular hydraulic brake cylinder piston - uses nut locked by expander shanks actuated by cylinder pressure via disc |
DE3136958C2 (en) * | 1981-09-17 | 1989-06-22 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
DE3410249C2 (en) * | 1984-03-21 | 1992-01-09 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
DE3802017A1 (en) * | 1988-01-25 | 1989-07-27 | Teves Gmbh Alfred | Automatic adjusting device for a disc brake |
US5219047A (en) * | 1989-04-25 | 1993-06-15 | General Motors Corp. | Disc brake caliper assembly |
DE19521634A1 (en) * | 1995-06-14 | 1996-12-19 | Teves Gmbh Alfred | Disc brake with automatic adjustment device |
Also Published As
Publication number | Publication date |
---|---|
DE10208641A1 (en) | 2003-09-11 |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |