DE102013013030B4 - Disc brake for a commercial vehicle - Google Patents
Disc brake for a commercial vehicle Download PDFInfo
- Publication number
- DE102013013030B4 DE102013013030B4 DE102013013030.1A DE102013013030A DE102013013030B4 DE 102013013030 B4 DE102013013030 B4 DE 102013013030B4 DE 102013013030 A DE102013013030 A DE 102013013030A DE 102013013030 B4 DE102013013030 B4 DE 102013013030B4
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- DE
- Germany
- Prior art keywords
- bush
- bearing
- brake
- bearing bush
- caliper
- 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.)
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/22—Sliding surface consisting mainly of rubber or synthetic rubber
-
- 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
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
- F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/22655—Constructional details of guide pins
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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
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
- F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/227—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
- F16C2220/04—Shaping by casting by injection-moulding
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/45—Brakes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Scheibenbremse für ein Nutzfahrzeug, mit einem eine Bremsscheibe (3) umfassenden Bremssattel (2), der mittels zweier Befestigungselemente, von denen eines als Fest- (4) und das andere als Loslager (5) ausgebildet ist, bezogen auf die Bremsscheibe (3), axial verschiebbar an einem ortsfesten Bremsträger (1) befestigt ist, wobei zumindest das Loslager (5) eine im Bremssattel (2) fest gehaltene Führungsbuchse (6) mit einer reibschlüssig im Bremssattel (2) positionierten Lagerbuchse (9) und einer darin verschiebegesichert gehaltenen Gleitbuchse (8) aus einem Kunststoff, insbesondere einem Elastomer, aufweist, in der ein mit dem Bremsträger (1) verbundener Führungsholm längs verschiebbar geführt ist, dadurch gekennzeichnet, dass die Lagerbuchse (9) aus einem formstabilen Kunststoff besteht und mit der Gleitbuchse (8) als Mehrkomponenten-Spritzgussteil ausgebildet oder damit durch Verkleben verbunden ist, wobei die Lagerbuchse (9) und/oder die Gleitbuchse (8) an einen stirnseitig an der Lagerbuchse (9) anliegenden Anschlagring (10) angespritzt und die Lagerbuchse (9), der Anschlagring (10) und die Gleitbuchse (8) als vormontierte Baueinheit ausgebildet sind.Disc brake for a commercial vehicle, comprising a brake caliper (2) comprising a brake disc (3), which is formed by means of two fastening elements, one of which is fixed (4) and the other is movable bearing (5), with respect to the brake disc (3). , axially displaceable on a stationary brake carrier (1) is fixed, wherein at least the floating bearing (5) held in the caliper (2) guide bush (6) with a frictionally engaged in the brake caliper (2) bearing bush (9) and held displaceable therein Sliding bush (8) made of a plastic, in particular an elastomer, in which a guide rail connected to the brake carrier (1) is longitudinally displaceably guided, characterized in that the bearing bush (9) consists of a dimensionally stable plastic and with the sliding bushing (8 ) is formed as a multi-component injection molded part or is connected thereto by gluing, wherein the bearing bush (9) and / or the slide bushing (8) to a front side on d he bearing bush (9) adjacent stop ring (10) molded and the bearing bush (9), the stop ring (10) and the sliding bush (8) are designed as a preassembled unit.
Description
Die Erfindung betrifft eine Scheibenbremse für ein Nutzfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a disc brake for a commercial vehicle according to the preamble of claim 1.
Der auch als Schiebesattel bezeichnete Bremssattel einer gattungsgemäßen Scheibenbremse, wie sie aus der
Dabei sind Führungsholme am Bremsträger angeschlossen, die in Gleitlagern des Bremssattels so geführt sind, dass eine axiale Verschiebung des Bremssattels, bezogen auf die Bremsscheibe, gegenüber dem Bremsträger möglich ist.In this case, guide rails are connected to the brake carrier, which are guided in plain bearings of the caliper so that an axial displacement of the caliper, relative to the brake disc, relative to the brake carrier is possible.
Eines der Gleitlager ist als Festlager mit geringem Gleitspiel und das andere, zum Ausgleich insbesondere von Fertigungstoleranzen, als Loslager ausgebildet.One of the bearings is designed as a fixed bearing with little sliding clearance and the other, designed to compensate for particular manufacturing tolerances, as a floating bearing.
Dabei hat sich der Einsatz einer Führungsbuchse im Loslager bewährt, die aus einer aus Metall bestehenden Lagerbuchse und einer darin positionsfest gehaltenen Gleitbuchse aus einem Elastomer besteht, wobei die Lagerbuchse verschiebegesichert, vor allem durch Reibschluss im Bremssattel gehalten ist.In this case, the use of a guide bush in the floating bearing has proven that consists of a metal bearing bushing and a fixed position held sliding bush made of an elastomer, the bushing is verschiebegesichert, especially held by friction in the caliper.
Allerdings ist die Herstellung der Führungsbuchse aufgrund der unterschiedlichen Materialien der aus dem Elastomer bestehenden Gleitbuchse einerseits und der aus dem Metall, üblicherweise Stahl, bestehenden Lagerbuchse andererseits relativ aufwändig und teuer, insbesondere um eine feste Verbindung zwischen beiden Teilen herzustellen.However, the production of the guide bushing on the other hand is relatively complex and expensive due to the different materials of the existing elastomeric bushing on the one hand and the metal, usually steel, bushing on the other hand, in particular to establish a firm connection between the two parts.
Die Führungsbuchse wird als vormontiertes Bauteil in den Bremssattel eingesetzt, üblicherweise durch Einpressen. Dies ist jedoch nicht ganz unproblematisch, zumal die Lagerbuchse dazu mit einem geringen Übermaß gegenüber dem lichten Durchmesser einer Lagerbohrung des Bremssattels vorliegen muss, um einen Presssitz zu erhalten.The guide bush is used as a pre-assembled component in the caliper, usually by pressing. However, this is not without problems, especially since the bearing bush must be present with a slight oversize relative to the clear diameter of a bearing bore of the caliper to obtain a press fit.
Im Übrigen beinhaltet die vormontierte Baueinheit einen endseitig an der Gleitbuchse befestigten Anschlagring, der sich im Bremssattel abstützt und durch den eine maximale Verpressung der Gleitbuchse bei einer äußeren Krafteinwirkung begrenzt wird.Incidentally, the preassembled unit includes an end attached to the slide bushing stop ring, which is supported in the caliper and is limited by the maximum compression of the bushing with an external force.
Somit ergeben sich neben den genannten relativ hohen Montagekosten auch entsprechende Herstellungskosten, die gerade bei einem Serienprodukt, wie es eine Scheibenbremse darstellt, sehr unbefriedigend sind und einer stets angestrebten Kostenoptimierung entgegenstehen.Thus, in addition to the above-mentioned relatively high assembly costs and corresponding production costs, which are very unsatisfactory in a series product, as it represents a disc brake, and always preclude a cost optimization aimed at.
In der
Der Erfindung liegt die Aufgabe zugrunde, eine Scheibenbremse der gattungsgemäßen Art so weiterzuentwickeln, dass sie mit geringem konstruktiven und fertigungstechnischen Aufwand kostengünstiger herstell- und montierbar ist.The invention has for its object to further develop a disc brake of the generic type so that it is less expensive to manufacture and assemble with low design and manufacturing expense.
Diese Aufgabe wird durch eine Scheibenbremse mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a disc brake with the features of claim 1.
Wie sich überraschend gezeigt hat, bietet die erfindungsgemäß vorgesehene Ausbildung der Lagerbuchse gegenüber einer Lagerbuchse nach dem Stand der Technik wesentliche Vorteile.As has surprisingly been found, the inventively provided training of the bearing bush over a bearing bush according to the prior art offers significant advantages.
So kann beispielsweise, wie nach einem weiteren Gedanken der Erfindung vorgesehen, bei geeigneter Materialauswahl die Gleitbuchse aus Elastomer und die Lagerbuchse aus Kunststoff mit lediglich einem Werkzeug gespritzt werden, nach dem sogenannten 2 K-Verfahren, wobei hierzu der Anschlagring in ein Kunststoffspritzwerkzeug eingelegt und an diesen direkt die Lagerbuchse angespritzt wird. Die Gleitbuchse, vorzugsweise aus einem thermoplastischen Elastomer wird im selben Werkzeug an die Lagerbuchse angespritzt, so dass eine zusätzliche Montage des Anschlagringes, wie bisher entfällt.Thus, for example, as provided for according to a further aspect of the invention, with suitable material selection, the bushing made of elastomer and the bearing bush made of plastic with only one tool to be sprayed, according to the so-called 2 K process, for this purpose, the stop ring inserted into a plastic injection tool and This is injected directly onto the bearing bush. The sliding bushing, preferably made of a thermoplastic elastomer is injection-molded in the same tool on the bearing bush, so that an additional mounting of the stop ring, as previously deleted.
Alternativ kann die Gleitbuchse jedoch auch mit der Lagerbuchse verklebt sein.Alternatively, however, the sliding bush can also be glued to the bearing bush.
Prinzipiell ist zur Herstellung der Lagerbuchse jeder formstabile und spritzfähige Kunststoff geeignet. Bevorzugt kommen Polypropylen (PP), Polyamid (PA), gegebenenfalls faser- oder kugelverstärkt, oder vergleichbare Kunststoffe zum Einsatz.In principle, any dimensionally stable and injectable plastic is suitable for the production of the bearing bush. Preference is given to polypropylene (PP), polyamide (PA), optionally reinforced with fibers or spheres, or comparable plastics.
Die Wanddicke der Lagerbuchse wird so gewählt, dass sie die entstehenden Einpresskräfte beim Einsetzen der Führungsbuchse in den Bremssattel aufnehmen kann.The wall thickness of the bearing bush is chosen so that it can absorb the resulting press-in forces when inserting the guide bush in the caliper.
Überdies trägt die neue Lagerbuchse aus Kunststoff zur Minimierung von Klappergeräuschen bei, da sie, ebenso wie die Gleitbuchse, ein Dämpfungselement aufgrund ihrer Materialeigenschaften bildet.Moreover, the new plastic bushing helps minimize rattling noises as it forms a damping element due to its material properties, as does the bushing.
Die Gleitbuchse kann wie bisher aus einem Elastomer (NBR, HNBR oder dergleichen) oder aus einem thermoplastischen Elastomer (TPE) gespritzt sein, womit eine kostenintensive Vulkanisierung entfällt.As before, the slide bush can be injection-molded from an elastomer (NBR, HNBR or the like) or from a thermoplastic elastomer (TPE), which eliminates expensive vulcanization.
Weitere vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnungen beschrieben.An embodiment of the invention will be described below with reference to the accompanying drawings.
Es zeigen:Show it:
In der
Der Bremssattel
Hierzu sind zwei Befestigungselemente vorgesehen, die jeweils einen mit dem Bremsträger
Zur Lagerung des Führungsholms, d. h. zur axialen Führung des Bremssattels
Diese Führungsbuchse
An einer Stirnseite ist an die Gleitbuchse
Zur reibschlüssigen Anlage an der Wandung der Bohrung des Bremssattels
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013013030.1A DE102013013030B4 (en) | 2013-08-05 | 2013-08-05 | Disc brake for a commercial vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013013030.1A DE102013013030B4 (en) | 2013-08-05 | 2013-08-05 | Disc brake for a commercial vehicle |
Publications (2)
Publication Number | Publication Date |
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DE102013013030A1 DE102013013030A1 (en) | 2015-02-05 |
DE102013013030B4 true DE102013013030B4 (en) | 2015-05-21 |
Family
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Application Number | Title | Priority Date | Filing Date |
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DE102013013030.1A Active DE102013013030B4 (en) | 2013-08-05 | 2013-08-05 | Disc brake for a commercial vehicle |
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DE (1) | DE102013013030B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2690302B1 (en) | 2012-07-24 | 2017-03-29 | Meritor Heavy Vehicle Braking Systems (UK) Limited | A carrier and mount |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4308938A (en) * | 1979-02-23 | 1982-01-05 | Garlock Inc. | Disc brake assembly and method |
EP0053724A1 (en) * | 1980-12-10 | 1982-06-16 | Sumitomo Electric Industries Limited | Improvement in a disc brake |
DE3940276A1 (en) * | 1989-12-06 | 1991-06-13 | Teves Gmbh Alfred | Protective cap for cylindrical component |
DE19853439A1 (en) * | 1998-11-19 | 2000-06-08 | Knorr Bremse Systeme | Device for mounting a sliding caliper of a sliding caliper disc brake for commercial vehicles and sliding caliper disc brake equipped therewith |
DE10341095A1 (en) * | 2003-09-05 | 2005-04-07 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake for commercial vehicle has brake calliper fastened on brake carrier by two fastening elements, one of which is movable bearing with slide bush of elastomer retained in bearing bush, the cavity of which is hermetically sealed |
-
2013
- 2013-08-05 DE DE102013013030.1A patent/DE102013013030B4/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4308938A (en) * | 1979-02-23 | 1982-01-05 | Garlock Inc. | Disc brake assembly and method |
EP0053724A1 (en) * | 1980-12-10 | 1982-06-16 | Sumitomo Electric Industries Limited | Improvement in a disc brake |
DE3940276A1 (en) * | 1989-12-06 | 1991-06-13 | Teves Gmbh Alfred | Protective cap for cylindrical component |
DE19853439A1 (en) * | 1998-11-19 | 2000-06-08 | Knorr Bremse Systeme | Device for mounting a sliding caliper of a sliding caliper disc brake for commercial vehicles and sliding caliper disc brake equipped therewith |
DE10341095A1 (en) * | 2003-09-05 | 2005-04-07 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake for commercial vehicle has brake calliper fastened on brake carrier by two fastening elements, one of which is movable bearing with slide bush of elastomer retained in bearing bush, the cavity of which is hermetically sealed |
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DE102013013030A1 (en) | 2015-02-05 |
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