DE102006048657A1 - Radial piston pump, has needle roller bearing provided with external ring, whose eccentric movement is converted into reciprocating movement of pump plunger, where external ring is arranged radially within non-circular external sleeve - Google Patents
Radial piston pump, has needle roller bearing provided with external ring, whose eccentric movement is converted into reciprocating movement of pump plunger, where external ring is arranged radially within non-circular external sleeve Download PDFInfo
- Publication number
- DE102006048657A1 DE102006048657A1 DE200610048657 DE102006048657A DE102006048657A1 DE 102006048657 A1 DE102006048657 A1 DE 102006048657A1 DE 200610048657 DE200610048657 DE 200610048657 DE 102006048657 A DE102006048657 A DE 102006048657A DE 102006048657 A1 DE102006048657 A1 DE 102006048657A1
- Authority
- DE
- Germany
- Prior art keywords
- radial piston
- piston pump
- ring
- outer sleeve
- pump according
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F04B1/0417—Cams consisting of two or more cylindrical elements, e.g. rollers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft eine Radialkolbenpumpe mit einem rotierenden Exzenterring, dessen exzentrische Bewegung über ein Wälzlager in eine hin- und hergehende Bewegung mindestens eines Kolbens umgesetzt wird.The The invention relates to a radial piston pump with a rotating Eccentric, whose eccentric movement via a rolling bearing in a reciprocating Movement is implemented at least one piston.
Hintergrund der ErfindungBackground of the invention
Eine
Radialkolbenpumpe mit den Merkmalen des Oberbegriffs des Anspruchs
1 ist beispielsweise aus der
Aufgabe der ErfindungObject of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine Radialkolbenpumpe anzugeben, welche ein auf einem Exzenterring angeordnetes Wälzlager aufweist und sich durch einen besonderes geringen Verschleiß auszeichnet.Of the Invention has for its object to provide a radial piston pump, which has an arranged on an eccentric roller bearing and through distinguishes a special low wear.
Zusammenfassung der ErfindungSummary of the invention
Diese Aufgabe wird erfindungsgemäß gelöst durch eine Radialkolbenpumpe mit den Merkmalen des Anspruchs 1. In an sicht bekannter Weise wird bei dieser Radialkolbenpumpe eine rotierende Bewegung eines Exzenterrings in eine reziprozierende, dass heißt hin- und hergehende Bewegung eines Pumpenplungers umgesetzt, wobei der Exzenterring den Innenring eines Wälzlager bildet. Der Außenring des Wälzlagers wirkt jedoch nicht direkt mit dem mindestens einen Pumpenplunger zusammen, sondern ist innerhalb eines weiteren Rings, einer so genannten Außenhülse, angeordnet, wobei die Positionierung des Außenrings des Wälzlagers innerhalb der Außenhülse durch Rotation des Exzenterrings veränderbar ist. Die Außenhülse weist eine nicht kreisförmige, vorzugsweise ovale Form auf.These The object is achieved by a radial piston pump with the features of claim 1. In view known manner is a rotating in this radial piston pump Movement of an eccentric ring into a reciprocal, that is, back and reacted movement of a pump plunger, wherein the Eccentric ring forms the inner ring of a rolling bearing. The outer ring of the roller bearing However, it does not work directly with the at least one pump plunger together, but is within another ring, a so-called Outer sleeve, arranged, the positioning of the outer ring of the rolling bearing through inside the outer sleeve Rotation of the eccentric ring changeable is. The outer sleeve has a non-circular, preferably oval shape.
Die Erfindung geht von der Überlegung aus, das durch die exzentrische Bewegung des Innenrings des Wälzlagers dessen Außenring zwangsläufig auch eine Bewegungskomponente orthogonal zur Bewegungsrichtung des Pumpenplungers erfährt. Diese Bewegungskomponente fördert Verschleiß an der Kontaktstelle zwischen dem Außenring und dem Pumpenplunger.The Invention goes from consideration characterized by the eccentric movement of the inner ring of the rolling bearing its outer ring inevitably also a component of motion orthogonal to the direction of movement of the Pump plunger learns. These Movement component promotes Wear on the Contact point between the outer ring and the pump plunger.
Ein solcher Verschleiß wird nach der Erfindung dadurch vermieden oder zumindest wesentlich gemindert, das der Außenring des Wälzlagers nicht unmittelbar, sondern über eine zusätzliche Außenhülse auf den Pumpenplunger einwirkt. Dadurch, dass der Außenring des Wälzlagers quer zur Bewegungsrichtung des Pumpenplungers in der Außenhülse verlagerbar ist, erfährt die Außenhülse beim Betrieb der Radialkolbenpumpe eine Querbewegungskomponente, welche geringer ist als die Querbewegungskomponente des Außenrings des Wälzlagers. Unter einer Querbewegungskomponente wird dabei eine orthogonal zur Bewegungsrichtung des Pumpenplungers gerichtete Bewegungskomponente verstanden.One such wear becomes avoided or at least significantly reduced according to the invention, that the outer ring of the rolling bearing not immediately, but over an additional Outer shell on the pump plunger acts. Because of the outer ring of the rolling bearing displaceable transversely to the direction of movement of the pump plunger in the outer sleeve is, learns the outer sleeve during operation the radial piston pump a transverse movement component, which is lower is as the transverse movement component of the outer ring of the rolling bearing. Under a transverse movement component is an orthogonal to Movement direction of the pump plunger understood motion component.
In bevorzugter Ausgestaltung beschreibt die innere Oberfläche der Außenhülse eine Ellipse, wobei die Differenz zwischen deren Halbachsen mindestens dem Abstand zwischen der Rotationsachse des Exzenterrings und der Achse des Wälzlagers entspricht. Damit ist die Rotation des Exzenterrings in eine ausschließlich lineare Bewegung der Außenhülse umsetzbar. Vorzugsweise ist die Außenhülse nicht drehbar in einem Gehäuse der Radialkolbenpumpe geführt, wobei einander gegenüberliegende Außenseiten der Außenhülse jeweils eine am Gehäuse anliegende Abflachung aufweisen. Es liegt damit eine Gleitlagerung der vorzugsweise als spanlos umgeformtes Blechteil gefertigten Außenhülse im Gehäuse vor. Die Radialkolbenpumpe weist in bevorzugter Ausgestaltung zwei um 180° gegeneinander versetzt angeordnete Kolben auf, wobei jeder dieser Kolben mittig zwischen den Abflachungen der Außenhülse von dieser betätigt wird.In preferred embodiment describes the inner surface of the Outer sleeve one Ellipse, where the difference between their semi-axes at least the distance between the axis of rotation of the eccentric ring and the Axis of the rolling bearing corresponds. Thus, the rotation of the eccentric ring is in an exclusively linear Movement of the outer sleeve implementable. Preferably, the outer sleeve is not rotatable in a housing guided the radial piston pump, being opposite each other outsides the outer sleeve respectively one on the housing having flattening. It is thus a slide bearing the outer sleeve preferably made as a non-cutting formed sheet metal part in the housing before. The radial piston pump has two in a preferred embodiment 180 ° against each other staggered pistons, each of these pistons centered between the flats of the outer sleeve is actuated by this.
Nach einer vorteilhaften Weiterbildung weist die Außenhülse zwei Borde auf, welche sie gegen axiale Verschiebung relativ zum Außenring sichern. Eine zur Kontaktierung des Pumpenplungers vorgesehene Anlagefläche an der Oberfläche der Außenhülse befindet sich axial zwischen den Borden. Die Borde gehen jedoch nicht direkt in die Anlagefläche über; vielmehr schließt sich an jeden Bord eine Randwulst an, wobei die Anlagefläche relativ zur Randwulst radial nach innen versetzt ist. Die Außenhülse weist damit auch bei geringer Wandstärke, welche eine rationelle Umformung zulässt, eine hohe Stabilität auf.To According to an advantageous development, the outer sleeve has two ribs, which secure them against axial displacement relative to the outer ring. One for contacting the pump plunger provided contact surface on the surface of Outer sleeve is located axially between the shelves. The shelves, however, do not go directly in the contact area over; much more includes At each board to a bead on, with the contact surface relative is displaced radially inward to the edge bead. The outer sleeve has so that even with low wall thickness, which allows a rational transformation, a high stability.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Hierhin zeigen:Hereinafter, an embodiment of the invention explained in more detail with reference to a drawing. Show here:
Kurze Beschreibung der ZeichnungShort description of the drawing
Ausführliche Beschreibung der ZeichnungDetailed description of the drawing
Die
Der
Außenring
Die
um 180° relativ
zueinander versetzt angeordneten Pumpenplunger
- 11
- RadialkolbenpumpeRadial piston pump
- 22
- Pumpenwellepump shaft
- 33
- Exzenterringeccentric
- 44
- Wälzlagerroller bearing
- 55
- InnenlaufbahnInner raceway
- 66
- Wälzkörperrolling elements
- 77
- Außenringouter ring
- 88th
- AußenlaufbahnOuter race
- 99
- Bordshelf
- 1010
- Bordshelf
- 1111
- Nutgroove
- 1212
- Anlaufscheibethrust washer
- 1313
- KäfigCage
- 1414
- Außenhülseouter sleeve
- 1515
- innere Oberflächeinner surface
- 1616
- Pumpenplungerpump plungers
- 1717
- Anlageflächecontact surface
- 1818
- Randwulstbead
- 1919
- Randwulstbead
- 2020
- Bordshelf
- 2121
- Bordshelf
- 2222
- Baueinheitunit
- 2323
- Gehäusecasing
- 2424
- Führungsflächeguide surface
- 2525
- Abflachungflattening
- AA
- Achse des Wälzlagersaxis of the rolling bearing
- BB
- Betätigungsrichtungoperating direction
- dd
- Abstand zwischen den Achsen A und Sdistance between the axes A and S.
- Querrichtungtransversely
- SS
- Symmetrieachse der Pumpenwelleaxis of symmetry the pump shaft
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610048657 DE102006048657A1 (en) | 2006-10-14 | 2006-10-14 | Radial piston pump, has needle roller bearing provided with external ring, whose eccentric movement is converted into reciprocating movement of pump plunger, where external ring is arranged radially within non-circular external sleeve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610048657 DE102006048657A1 (en) | 2006-10-14 | 2006-10-14 | Radial piston pump, has needle roller bearing provided with external ring, whose eccentric movement is converted into reciprocating movement of pump plunger, where external ring is arranged radially within non-circular external sleeve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006048657A1 true DE102006048657A1 (en) | 2008-04-17 |
Family
ID=39184951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610048657 Withdrawn DE102006048657A1 (en) | 2006-10-14 | 2006-10-14 | Radial piston pump, has needle roller bearing provided with external ring, whose eccentric movement is converted into reciprocating movement of pump plunger, where external ring is arranged radially within non-circular external sleeve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006048657A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4027794C2 (en) * | 1990-09-01 | 2002-06-20 | Continental Teves Ag & Co Ohg | Hydraulic radial piston pump |
DE10158768A1 (en) * | 2001-11-29 | 2003-06-26 | Ina Schaeffler Kg | Radial piston pump |
US6641232B1 (en) * | 1998-03-26 | 2003-11-04 | Robert Bosch Gmbh | Piston pump for brake system with piston pump |
FR2870896A1 (en) * | 2004-05-28 | 2005-12-02 | Bosch Gmbh Robert | Piston pump for vehicle brake system, has sliding ring provided between pistons and eccentric unit, comprising cavities receiving end faces of corresponding pistons, and integrated in rotation opposite to that of eccentric unit |
-
2006
- 2006-10-14 DE DE200610048657 patent/DE102006048657A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4027794C2 (en) * | 1990-09-01 | 2002-06-20 | Continental Teves Ag & Co Ohg | Hydraulic radial piston pump |
US6641232B1 (en) * | 1998-03-26 | 2003-11-04 | Robert Bosch Gmbh | Piston pump for brake system with piston pump |
DE10158768A1 (en) * | 2001-11-29 | 2003-06-26 | Ina Schaeffler Kg | Radial piston pump |
FR2870896A1 (en) * | 2004-05-28 | 2005-12-02 | Bosch Gmbh Robert | Piston pump for vehicle brake system, has sliding ring provided between pistons and eccentric unit, comprising cavities receiving end faces of corresponding pistons, and integrated in rotation opposite to that of eccentric unit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120822 |
|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20131015 |