DE10242116B3 - Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element - Google Patents
Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element Download PDFInfo
- Publication number
- DE10242116B3 DE10242116B3 DE2002142116 DE10242116A DE10242116B3 DE 10242116 B3 DE10242116 B3 DE 10242116B3 DE 2002142116 DE2002142116 DE 2002142116 DE 10242116 A DE10242116 A DE 10242116A DE 10242116 B3 DE10242116 B3 DE 10242116B3
- Authority
- DE
- Germany
- Prior art keywords
- eccentric
- drive device
- shaft
- groove
- pump
- 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
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4031—Pump units characterised by their construction or mounting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0413—Cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Antriebsvorrichtung für ein Pumpenelement, insbesondere für Hydraulikaggregate für Kraftfahrzeug-Bremsanlagen.The present invention relates to a drive device for a pump element, in particular for hydraulic units for motor vehicle brake systems.
Eine Antriebsvorrichtung für ein Pumpenelement
ist beispielsweise aus der
Um diese Geräusche bzw. die hohen Reibungen zu verringern, wurde vorgeschlagen, am Wellenende ein drittes Lager anzuordnen. Jedoch auch bei Verwendung von drei Lagern (einem Nadellager am Exzenter und zwei Lagern zu beiden Seiten des Nadellagers zur Lagerung der Welle) können die auftretenden Axialkräfte und die dadurch entstehenden Probleme nicht vollständig verhindert werden.About this noise or the high friction to reduce, it was proposed to have a third bearing at the shaft end to arrange. But also when using three bearings (one needle bearing on the eccentric and two bearings on both sides of the needle bearing Bearing of the shaft) the axial forces that occur and does not completely prevent the problems that arise as a result become.
Aus der
Eine unmittelbare Anordnung eines
Rollelements zwischen einem Exzenterelement und einem Pumpenelement
ist aus der
Aufgabe der Erfindung ist es, eine Antriebsvorrichtung für ein Pumpenelement derart weiterzubilden, dass neben dem Vermeiden der Übertragung von Axialkräften zwischen der Welle und dem Pumpenelement gleichzeitig ein relativ einfacher und kompakter Aufbau der Antriebsvorrichtung verwirklicht werden soll.The object of the invention is a Drive device for to further develop a pump element such that in addition to avoidance the transfer of axial forces between the shaft and the pump element at the same time a relative simple and compact construction of the drive device realized shall be.
Diese Aufgabe wird bei einer Antriebsvorrichtung für ein Pumpenelement mit den Merkmalen des Anspruchs 1 gelöst.This task is done with a drive device for a Pump element with the features of claim 1 solved.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben. Die im Exzenterelement gebildete Nut weist vorzugsweise eine im Schnitt dreieckförmige oder trapezförmige oder rechteckige Form auf. Wenn die Nut eine zur Wellenachse im Wesentlichen parallele untere Lauffläche aufweist, wie beispielsweise bei einer trapezförmigen oder rechteckigen Nutform, kann eine Übertragung der Axialkräfte fast vollständig verhindert werden.Advantageous further developments are in the subclaims specified. The groove formed in the eccentric element preferably has one triangular on average or trapezoidal or rectangular shape. If the groove is one to the shaft axis in the Has substantially parallel lower tread, such as with a trapezoidal or rectangular groove shape, can transmit the axial forces almost Completely be prevented.
Um einen besonders kompakten Aufbau bereitzustellen, ist das Rollelement vorzugsweise mit dem Pumpenelement verbunden. Dies wird besonders bevorzugt beispielsweise mittels einer Haltehülse erreicht, welche am Pumpenelement befestigt ist und das Rollelement hält.A particularly compact structure To provide, the rolling element is preferably with the pump element connected. This is particularly preferred, for example a holding sleeve reached, which is attached to the pump element and the rolling element holds.
Vorzugsweise wird die Exzentrizität des Exzenterelements durch eine über den Umfang des Exzenterelements unterschiedliche Nuttiefe erhalten. Gemäß einer anderen bevorzugten Ausgestaltung der vorliegenden Erfindung wird die Exzentrizität des Exzenterelements durch einen exzentrischen Außenumfang des Exzenterelements erhalten, wobei die Nut am Umfang des Exzenterelements eine konstante Tiefe aufweist. Es sei angemerkt, dass die Exzentrizität selbstverständlich auch durch eine Kombination der beiden vorher genannten Möglichkeiten erhalten werden kann.The eccentricity of the eccentric element is preferred through an over receive the circumference of the eccentric element different groove depth. According to one another preferred embodiment of the present invention the eccentricity of the eccentric element due to an eccentric outer circumference receive the eccentric element, the groove on the circumference of the eccentric element has a constant depth. It should be noted that the eccentricity is of course also by a combination of the two previously mentioned options can be obtained.
Um eine sichere Verbindung zwischen dem Rollelement und dem Pumpenelement bereitzustellen, weist das Pumpenelement vorzugsweise eine Vertiefung zur Aufnahme des Rollelements auf.To ensure a secure connection between To provide the rolling element and the pump element, that has Pump element preferably a recess for receiving the rolling element on.
Um einen besonders kompakten Aufbau der erfindungsgemäßen Antriebsvorrichtung bereitzustellen, ist am Exzenterelement ein Nadellager angeordnet. Die Nadeln des Nadellagers sind dabei am Umfang des Exzenterelements neben der Nut angeordnet. Die Nadelhülse des Nadellagers weist dabei für jedes Rollelement der Antriebsvorrichtung eine Durchgangsöffnung auf, so dass das Rollelement in die im Exzenterelement gebildete Nut einerseits eingreifen kann und andererseits mit dem Pumpenelement an der Außenseite der Nadelhülse in Kontakt steht. Da bei dieser Bauweise auf ein an der Welle angeordnetes Lager verzichtet werden kann, kann ein insbesondere in Axialrichtung der Welle besonders kompakter Aufbau erhalten werden.A particularly compact structure the drive device according to the invention To provide, a needle bearing is arranged on the eccentric element. The needles of the needle bearing are on the circumference of the eccentric element arranged next to the groove. The needle sleeve of the needle bearing points for each Roll element of the drive device on a through opening, so that the rolling element in the groove formed in the eccentric element can intervene on the one hand and on the other hand with the pump element on the outside the needle sleeve is in contact. Because with this design, a shaft arranged on the Bearing can be dispensed with, particularly in the axial direction the shaft particularly compact structure can be obtained.
Wenn vorzugsweise weiterhin Nadeln des Nadellagers zu beiden Seiten der Nut angeordnet sind, kann ein derartiges Nadellager in Verbindung mit dem in der Nut verlaufenden Rollelement die im Stand der Technik verwendeten drei Lager ersetzen. Dadurch wird ein besonders kompakter Aufbau der erfindungsgemäßen Antriebsvorrichtung erhalten.If preferably continue to needles of the needle bearing are arranged on both sides of the groove, a such needle bearing in connection with that running in the groove Roll element replace the three bearings used in the prior art. Thereby becomes a particularly compact structure of the drive device according to the invention receive.
Um eine möglichst einfache Herstellbarkeit der erfindungsgemäßen Antriebsvorrichtung zu ermöglichen, sind vorzugsweise die Welle und das Exzenterelement einstöckig gebildet. Dadurch kann das Exzenterelement beispielsweise mittels Schleifen der Welle hergestellt werden.In order to enable the drive device according to the invention to be manufactured as simply as possible, the shaft and the Ex are preferably center element formed in one story. As a result, the eccentric element can be produced, for example, by grinding the shaft.
Vorzugsweise ist das Rollelement als Kugel oder als Nadel oder als Tonne ausgebildet. Dabei wird besonders bevorzugt eine Kugel verwendet, da hierbei die Reibung zwischen der Kugel und dem Exzenterelement bzw. dem Pumpenelement am geringsten ist.Preferably, the rolling element designed as a ball or as a needle or as a barrel. Doing so a ball is particularly preferably used, since this is the friction between the ball and the eccentric element or the pump element is the least.
Die erfindungsgemäße Antriebsvorrichtung wird insbesondere bei Kolbenpumpen für den Hydraulikkreis eines Kraftfahrzeugs verwendet.The drive device according to the invention is especially for piston pumps for used the hydraulic circuit of a motor vehicle.
Nachfolgend werden unter Bezugnahme auf die Zeichnung bevorzugte Ausführungsbeispiele der Erfindung beschrieben. In der Zeichnung ist:The following are with reference on the drawing preferred embodiments of the invention described. In the drawing is:
Beschreibung der Ausführungsbeispieledescription of the embodiments
Nachfolgend wird unter Bezugnahme
auf
Wie aus
Wie weiter aus
Am Pumpenelement
Da bei der Bauweise der Antriebsvorrichtung
Nachfolgend wird unter Bezugnahme
auf
Wie in
Wie in
Ansonsten entspricht das zweite Ausführungsbeispiel dem ersten Ausführungsbeispiel, so dass auf die dort gegebene Beschreibung verzichtet werden kann.Otherwise the second embodiment corresponds the first embodiment, so that the description given there can be dispensed with.
Nachfolgend wird unter Bezugnahme
auf
Das dritte Ausführungsbeispiel entspricht im Wesentlichen
dem ersten Ausführungsbeispiel,
wobei an Stelle einer im Schnitt dreieckförmigen Nut die Nut
Dadurch können der Verschleiß und auftretende Geräusche beim Betrieb deutlich verringert werden.This can cause wear and tear noises during operation can be significantly reduced.
In
Wie in den Ausführungsbeispielen in den
Die Antriebsvorrichtung
Durch die Ausbildung des doppelten
Nadellagers mit einer gemeinsamen Nadelhülse können die bisher im Stand der
Technik durch drei Lager (ein Exzenterlager und zwei Lager für die Welle)
bereitgestellten Funktionen von einem kompakten Nadellager erfüllt werden.
Dabei ist die Nadelhülse
Im dargestellten Ausführungsbeispiel
weist die Antriebsvorrichtung
Es sei weiterhin angemerkt, dass
an Stelle nur eines Nadelkäfigs
Nachfolgend wird unter Bezugnahme
auf
Das vierte Ausführungsbeispiel entspricht im Wesentlichen
dem vierten Ausführungsbeispiel,
wobei an Stelle einer im Schnitt rechteckigen Nut eine im Schnitt
dreieckige Nut
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002142116 DE10242116B3 (en) | 2002-09-11 | 2002-09-11 | Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002142116 DE10242116B3 (en) | 2002-09-11 | 2002-09-11 | Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10242116B3 true DE10242116B3 (en) | 2004-04-29 |
Family
ID=32049155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002142116 Expired - Fee Related DE10242116B3 (en) | 2002-09-11 | 2002-09-11 | Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10242116B3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008012295A3 (en) * | 2006-07-27 | 2008-03-20 | Siemens Vdo Automotive Ag | Radial piston pump unit for supplying fuel at high pressure in fuel injection systems |
| DE102010063317A1 (en) | 2010-12-17 | 2012-06-21 | Robert Bosch Gmbh | Drive unit for a high pressure pump and high pressure pump |
| JP2017025872A (en) * | 2015-07-27 | 2017-02-02 | 株式会社アドヴィックス | Pump device and vehicle brake device including the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2657779A1 (en) * | 1976-02-12 | 1977-08-25 | Umberto Sopracolle | MULTIPLE PUMP |
| DE4306902A1 (en) * | 1993-03-05 | 1994-09-08 | Bosch Gmbh Robert | Arrangement for fastening a component in a bore by means of an expansion connection |
| DE19625686A1 (en) * | 1996-06-27 | 1998-01-02 | Bosch Gmbh Robert | Eccentric arrangement, particularly for stroke piston pump |
-
2002
- 2002-09-11 DE DE2002142116 patent/DE10242116B3/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2657779A1 (en) * | 1976-02-12 | 1977-08-25 | Umberto Sopracolle | MULTIPLE PUMP |
| DE4306902A1 (en) * | 1993-03-05 | 1994-09-08 | Bosch Gmbh Robert | Arrangement for fastening a component in a bore by means of an expansion connection |
| DE19625686A1 (en) * | 1996-06-27 | 1998-01-02 | Bosch Gmbh Robert | Eccentric arrangement, particularly for stroke piston pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008012295A3 (en) * | 2006-07-27 | 2008-03-20 | Siemens Vdo Automotive Ag | Radial piston pump unit for supplying fuel at high pressure in fuel injection systems |
| DE102010063317A1 (en) | 2010-12-17 | 2012-06-21 | Robert Bosch Gmbh | Drive unit for a high pressure pump and high pressure pump |
| JP2017025872A (en) * | 2015-07-27 | 2017-02-02 | 株式会社アドヴィックス | Pump device and vehicle brake device including the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| 8364 | No opposition during term of opposition | ||
| R084 | Declaration of willingness to licence | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |