WO1998053202A1 - Groupe moto-pompe pour systeme de frein automobile antiblocage - Google Patents

Groupe moto-pompe pour systeme de frein automobile antiblocage Download PDF

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Publication number
WO1998053202A1
WO1998053202A1 PCT/DE1998/000557 DE9800557W WO9853202A1 WO 1998053202 A1 WO1998053202 A1 WO 1998053202A1 DE 9800557 W DE9800557 W DE 9800557W WO 9853202 A1 WO9853202 A1 WO 9853202A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
shaft
motor
housing
electric motor
Prior art date
Application number
PCT/DE1998/000557
Other languages
German (de)
English (en)
Inventor
Heinz Siegel
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO1998053202A1 publication Critical patent/WO1998053202A1/fr

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
    • 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
    • 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
    • B60T8/4018—Pump units characterised by their drive mechanisms
    • B60T8/4022—Pump units driven by an individual electric motor
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the invention relates to a pump unit, in particular for slip-controlled brake systems of vehicles.
  • Shaft a part of which is supported at both ends in a pump housing with roller bearings and has an eccentric for the pump drive.
  • One of the rolling bearings is a fixed bearing.
  • the armature and the collector of the electric motor are arranged on the other part of the shaft.
  • Shaft part has no bearings. Both shaft parts are connected with a fixed coupling in the form of a sleeve coupling, the motor-side shaft part forming the sleeve into which the pump-side shaft part engages in a form-fitting manner with a pin.
  • the pump unit is installed in such a way that the pump-side shaft part with its bearings is inserted into the pump housing. Then the motor-side shaft part with armature and collector on the pin of the pump-side shaft part inserted. The motor stand is then installed, the housing of which is attached to the pump housing.
  • the pump unit has the following serious defect: To connect the coupling parts to one another, a close clearance fit is required, since a press fit or a transition fit with pressure could damage the roller bearings. Since the coupling of the two shaft parts is subject to play and there is no bearing in the motor-side shaft part in the motor housing, unbalance inevitably occurs when the motor is switched on, which not only contributes to considerable noise, but also leads to the destruction of the roller bearings in the pump housing soon. In addition, the motor-side shaft part lacks an axial guide so that it can start against the motor housing. The known pump unit is therefore not suitable for operation.
  • a pump unit with an electric motor is also known from DE 32 32 083 C2, in which the pump shaft is connected to the motor shaft by means of a coupling.
  • the pump shaft is mounted in plain bearings, and the electric motor also has two bearings.
  • the electric motor is connected to the pump housing as a completely assembled unit. If a fixed coupling between the pump shaft and the motor shaft is used, the bearing of both shafts is over-determined, if a compensating coupling is used, the unit becomes more expensive.
  • the pump unit according to the invention with the features of claim 1 has the advantage over the development state mentioned at the outset that, due to the fixed bearing of the motor shaft, the armature of the electric motor is connected to the motor housing and thus the electric motor becomes a preassembled unit which can be attached to the pump housing in a simple manner is.
  • the motor shaft bearing prevents the armature connected to the pump shaft from wobbling.
  • the bearing of the pump shaft and the coupled motor shaft is largely determined statically. Deflection of the pump shaft by pump forces is not transmitted to the motor shaft.
  • the pump unit according to the invention is advantageously characterized in that an engine mount and an associated engine mount cover are saved, as a result of which the overall length of the electric motor is reduced and a simple fixed coupling can be used.
  • the inaccessible bearing in the motor housing is fastened in a simple manner.
  • the carrier plate is used for several functions: it carries holders for carbon brushes, centers the electric motor on the pump housing and serves as a holder for the free end of the motor shaft, as long as Electric motor is not yet attached to the pump housing. This multiple function of the carrier plate keeps the costs for the electric motor low.
  • a in the drawing in section and only partially shown pump unit 1 for slip-controlled brake systems of vehicles has a radial piston pump 2 with pump elements 3 and an electric motor 4 for the
  • the radial piston pump 2 has a pump housing 5 with a stepped housing bore 6.
  • a pump shaft 7 is received with an eccentric section 8, which has a needle bearing 9 carries, on the pump piston 10 of the pump elements 3 attack.
  • Two radial roller bearings 13 and 14 are also arranged in the housing bore 6.
  • the outer ring 13.1 of the roller bearing 13 is press-fitted in the housing bore 6.
  • a shaft section 15 of the pump shaft 7 facing away from the motor engages in the inner ring 13.2 of the roller bearing 13 with a sliding fit.
  • the roller bearing 13 thus forms a floating bearing for the pump shaft 7.
  • Pump shaft 7 carries the inner ring 14.1 of the roller bearing 14 with an interference fit.
  • the outer ring 14.2 of the roller bearing 14 is also fixed with a press fit in the housing bore 6.
  • the roller bearing 14 thus forms the fixed bearing of the pump shaft 7.
  • the shaft section 16 and the eccentric section 8 of the pump shaft 7 have a larger diameter than the shaft section 15.
  • the pump shaft 7 is of sleeve-shaped design. It is part of a later described fixed (in the sense of non-switchable) clutch 19 between the radial piston pump 2 and the electric motor 4.
  • the pump shaft 7 can be designed as a sintered metal part or as a machined part.
  • the electric motor 4 has a pot-shaped housing 22 with a stand 23. On the pump housing side, a carrier plate 24 made of insulating material is accommodated in the motor housing 22. Carbon brush holders 25 are arranged on the inside of the motor on the carrier plate 24. On the outside is the
  • Carrier plate 24 is provided with a concentric centering collar 26. This fits into the housing bore 6 of the pump housing 5 and ensures that the electric motor 4 is assigned to the pump shaft 7 with the same axis Electric motor 4 on the pump housing 5 is carried out with push-through screws 27.
  • the bottom 30 of the motor housing 22 facing away from the pump housing 5 has a sleeve-shaped depression 31 with a radial roller bearing 32 arranged therein. Its outer ring 32.1 is fastened by an external caulking 33 which is partially or on the entire circumference of the mouth of the sleeve-shaped depression 31 is made.
  • the inner ring 32.2 of the roller bearing 32 is press-fitted onto the end portion 34 of the motor shaft 35 of the electric motor 4 remote from the pump.
  • the roller bearing 32 thus forms a fixed bearing for the electric motor 4.
  • the armature 36 and the collector 37 of the electric motor 4 are also fastened on the motor shaft 35.
  • the electric motor 4 does not have a bearing other than the roller bearing 32 remote from the pump.
  • the motor shaft 35 passes through the support plate 24 of the electric motor 4 in a bore 40 with little play.
  • the support plate 24 thus gives the motor shaft 35 a guide as long as the completely pre-assembled electric motor 4 is not connected to the pump housing 5.
  • the motor shaft 35 is provided with a cross section deviating from the circular shape on its shaft section 41 projecting above the carrier plate 24. This can be a polygon to
  • the shaft section 41 can also be provided with a polygon profile or a multi-tooth profile.
  • the shaft section 41 is part of the coupling 19 already mentioned.
  • the sleeve-shaped shaft section 16 of the pump shaft 7 is designed to be complementary.
  • the design of the coupling 19 is therefore a sleeve coupling with a pair of shapes.
  • the shaft section 41 of the motor shaft 35 engages in the pump shaft 7 with a sliding seat with very little play. This takes over the pump-side mounting of the motor shaft 35. Due to the coupling 19, the electric motor 4 is decoupled from the pump forces acting on the pump shaft 7; the clutch 19 only transmits the drive torque provided by the electric motor 4.
  • the coupling 19 also largely prevents the transmission of bending vibrations of the pump shaft 7 to the motor shaft 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Le groupe moto-pompe (1) proposé comprend une pompe à pistons radiaux (2) et un moteur électrique (4). La pompe à pistons radiaux (2) est actionnée par un dispositif d'entraînement excentrique (8) d'un axe de pompe (7) dont les deux extrémités sont à l'intérieur du corps de pompe (5), un roulement (14) de l'axe de pompe (7) étant un roulement à siège fixe. Le moteur électrique (4) fixé au corps de pompe (5) présente, uniquement sur la section terminale de son arbre de moteur (35), à distance de la pompe, un roulement à siège fixe (32) sur le carter du moteur (22). L'arbre (35) du moteur électrique (4) est relié à l'axe de pompe (7) par une liaison fixe (19). Le moteur électrique (4) peut être pré-assemblé en tant que composant et raccordé simplement à la pompe à pistons radiaux (2).
PCT/DE1998/000557 1997-05-16 1998-02-25 Groupe moto-pompe pour systeme de frein automobile antiblocage WO1998053202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19720615.8 1997-05-16
DE1997120615 DE19720615C1 (de) 1997-05-16 1997-05-16 Pumpenaggregat, insbesondere für schlupfgeregelte Bremsanlagen von Fahrzeugen

Publications (1)

Publication Number Publication Date
WO1998053202A1 true WO1998053202A1 (fr) 1998-11-26

Family

ID=7829693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/000557 WO1998053202A1 (fr) 1997-05-16 1998-02-25 Groupe moto-pompe pour systeme de frein automobile antiblocage

Country Status (2)

Country Link
DE (1) DE19720615C1 (fr)
WO (1) WO1998053202A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351125A (en) * 1999-06-17 2000-12-20 Bosch Gmbh Robert Coupling and common bearing between ends of a motor shaft and a pump shaft
WO2002009991A1 (fr) * 2000-07-29 2002-02-07 Robert Bosch Gmbh Ensemble pompe pour un systeme de freinage hydraulique de vehicule
US7168929B2 (en) 2000-07-29 2007-01-30 Robert Bosch Gmbh Pump aggregate for a hydraulic vehicle braking system

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827653A1 (de) * 1998-06-22 1999-12-23 Continental Teves Ag & Co Ohg Exzenteranordnung
DE19849669B4 (de) * 1998-10-28 2006-12-21 Robert Bosch Gmbh Motor-Pumpe-Einrichtung
DE19928480A1 (de) * 1999-06-22 2000-12-28 Bosch Gmbh Robert Nadellager und Pumpeneinheit mit einem Nadellager
DE10051309A1 (de) * 2000-10-17 2002-05-16 Bosch Gmbh Robert Lageraufnahme
DE10201530A1 (de) * 2001-02-05 2002-08-22 Continental Teves Ag & Co Ohg Gehäuse mit daran befestigtem Lager
DE10140918A1 (de) * 2001-05-28 2002-12-05 Continental Teves Ag & Co Ohg Motor-Pumpen-Aggregat, insbesondere für ein Kraftfahrzeugbremssystem
DE10163234A1 (de) * 2001-12-21 2003-07-10 Bosch Gmbh Robert Lagerschild für eine elektrische Maschine sowie elektrische Maschine
US6861777B2 (en) * 2002-02-28 2005-03-01 Standex International Corp. Motor pump with balanced motor rotor
DE102005040344A1 (de) * 2005-08-25 2007-03-01 Fresenius Kabi Deutschland Gmbh Pumpe
DE102010001792B4 (de) 2010-02-11 2022-12-01 Robert Bosch Gmbh Antriebseinrichtung, insbesondere Elektromotor, zum Antrieb eines Aggregates
DE102011087083A1 (de) 2011-11-25 2013-05-29 Robert Bosch Gmbh Elektromotor
DE102018106138B4 (de) * 2018-03-16 2019-12-19 Schaeffler Technologies AG & Co. KG Verfahren zur Herstellung einer Verbindung sowie eine nach dem Verfahren hergestellte Teileanordnung
DE102018120817A1 (de) * 2018-04-23 2019-10-24 Kiekert Ag Stelleinheit für kraftfahrzeugtechnische Anwendungen, insbesondere Kraftfahrzeugtürverschlüsse
DE102018216558A1 (de) * 2018-09-27 2020-04-02 Robert Bosch Gmbh Antriebseinrichtung, Hydraulikpumpe, Kraftfahrzeug
DE102020202680A1 (de) 2020-03-03 2021-09-09 Robert Bosch Gesellschaft mit beschränkter Haftung Elektrische Maschine, ein Bremsaggregat beinhaltend eine elektrische Maschine und Verfahren zum Herstellen eines solchen Bremsaggregats

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505271A (en) * 1947-04-09 1950-04-25 Bendix Aviat Corp Pump
CH596697A5 (en) * 1975-05-26 1978-03-15 Theodor Meier Pump set with air-cooled flanged electric motor
DE3232083C2 (fr) 1982-08-28 1990-05-23 Alfred Teves Gmbh, 6000 Frankfurt, De
EP0633645A1 (fr) * 1993-07-10 1995-01-11 Licentia Patent-Verwaltungs-GmbH Moteur à collecteur protégé contre l'humidité pour l'entraînement d'une pompe hydraulique montée axialement sur son flanc
DE19536794A1 (de) * 1994-10-03 1996-04-04 Nippon Denso Co Trägerstruktur für einen Elektromotor zum Antrieb einer Pumpe
DE4444644A1 (de) 1994-12-15 1996-06-20 Teves Gmbh Alfred Motorpumpenaggregat
DE19633703A1 (de) * 1995-08-21 1997-03-27 Akebono Brake Ind Hydraulikdruckeinheit mit elektrischem Motor und Pumpe
WO1998006942A1 (fr) * 1996-08-09 1998-02-19 Itt Manufacturing Enterprises, Inc. Organe constitue d'un moteur electrique et d'une machine motrice entrainee par celui-ci

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505271A (en) * 1947-04-09 1950-04-25 Bendix Aviat Corp Pump
CH596697A5 (en) * 1975-05-26 1978-03-15 Theodor Meier Pump set with air-cooled flanged electric motor
DE3232083C2 (fr) 1982-08-28 1990-05-23 Alfred Teves Gmbh, 6000 Frankfurt, De
EP0633645A1 (fr) * 1993-07-10 1995-01-11 Licentia Patent-Verwaltungs-GmbH Moteur à collecteur protégé contre l'humidité pour l'entraînement d'une pompe hydraulique montée axialement sur son flanc
DE19536794A1 (de) * 1994-10-03 1996-04-04 Nippon Denso Co Trägerstruktur für einen Elektromotor zum Antrieb einer Pumpe
DE4444644A1 (de) 1994-12-15 1996-06-20 Teves Gmbh Alfred Motorpumpenaggregat
DE19633703A1 (de) * 1995-08-21 1997-03-27 Akebono Brake Ind Hydraulikdruckeinheit mit elektrischem Motor und Pumpe
WO1998006942A1 (fr) * 1996-08-09 1998-02-19 Itt Manufacturing Enterprises, Inc. Organe constitue d'un moteur electrique et d'une machine motrice entrainee par celui-ci

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351125A (en) * 1999-06-17 2000-12-20 Bosch Gmbh Robert Coupling and common bearing between ends of a motor shaft and a pump shaft
WO2002009991A1 (fr) * 2000-07-29 2002-02-07 Robert Bosch Gmbh Ensemble pompe pour un systeme de freinage hydraulique de vehicule
US7168929B2 (en) 2000-07-29 2007-01-30 Robert Bosch Gmbh Pump aggregate for a hydraulic vehicle braking system

Also Published As

Publication number Publication date
DE19720615C1 (de) 1998-06-04

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