EP1529165A1 - Pompe a plateau oscillant, en particulier pour appareils de nettoyage haute pression - Google Patents

Pompe a plateau oscillant, en particulier pour appareils de nettoyage haute pression

Info

Publication number
EP1529165A1
EP1529165A1 EP03793714A EP03793714A EP1529165A1 EP 1529165 A1 EP1529165 A1 EP 1529165A1 EP 03793714 A EP03793714 A EP 03793714A EP 03793714 A EP03793714 A EP 03793714A EP 1529165 A1 EP1529165 A1 EP 1529165A1
Authority
EP
European Patent Office
Prior art keywords
swash plate
pump according
swashplate
axis
rotation
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.)
Granted
Application number
EP03793714A
Other languages
German (de)
English (en)
Other versions
EP1529165B1 (fr
Inventor
Felix Treitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1529165A1 publication Critical patent/EP1529165A1/fr
Application granted granted Critical
Publication of EP1529165B1 publication Critical patent/EP1529165B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/128—Driving means

Definitions

  • the invention relates to a swash plate pump, in particular for high-pressure cleaning devices, with at least one pump piston which bears against a swash plate and is reciprocally driven when it rotates about an axis of rotation, and with a drive which sets the swash plate in rotation.
  • a swash plate pump of the type described in the introduction in that the drive comprises a pinion which meshes with a toothed ring arranged concentrically with the axis of rotation on the swash plate.
  • part of the swashplate itself forms a ring gear that can be driven in a simple manner via a pinion, and the speed of the swashplate can be reduced in relation to the speed of the drive pinion in accordance with the number of teeth used in each case.
  • the pinion preferably runs around an axis running parallel to the axis of rotation of the swash plate, but it can also be provided that the axis of the pinion is inclined with respect to the axis of rotation, for example by an angle of the order of 5 ° to 15 °. In this way, the overall arrangement can be optimally adapted to the available space.
  • the ring gear is preferably arranged in a plane that is perpendicular to the axis of rotation of the swash plate. In principle, however, it would also be possible to arrange the ring gear in a plane that is inclined with respect to the axis of rotation of the swash plate. In particular, it can be provided that the plane of the ring gear runs parallel to the contact surface of the swash plate.
  • the toothed ring is molded into an annular flange of the swash plate surrounding the axis of rotation. You then do not need any additional parts for the production of the ring gear.
  • the swash plate is pot-shaped with an inclined bottom and with a side wall formed by the ring flange.
  • the ring gear can be arranged on the outside of the ring flange, but also on the inside, so that there are also different possible arrangements for the drive pinion in this way.
  • the swash plate has two concentric annular flanges which run parallel to one another and are connected to one another via an annular base which extends obliquely to the axis of rotation, and that the ring gear is molded into one of these annular flanges.
  • the ring gear can be molded into the inside of the inner ring flange, but it is also possible to form the ring gear into the outside of the outer ring flange.
  • the shaping of the ring gear can already be carried out during this deep-drawing process, so that no additional processing steps are necessary.
  • the pinion has a circular cylindrical outer surface which is arranged concentrically to the axis of rotation of the pinion and which carries the teeth of the pinion. These teeth preferably run parallel to the axis of rotation of the pinion.
  • a swash plate pump it can be provided that the pinion and the ring gear are helically toothed. This will surely avoid lifting the swash plate under load.
  • toothed ring is preferably integrated in one piece into the swash plate, it can also be provided according to a modified embodiment that the toothed ring and the swash plate consist of different materials and are firmly connected to one another. This makes it possible to use more wear-resistant materials for the ring gear than for the swash plate.
  • the ring gear can be designed as an insert which is inserted into the swash plate.
  • the connection can be achieved by injection molding, by a press fit or a similar joining technique known per se.
  • Figure 1 A sectional view through the swash plate drive part
  • Figure 2 is a view similar to Figure 1 with a cup-shaped swash plate and external teeth
  • FIG. 3 a view similar to FIG. 1 with a swash plate having two concentric ring flanges and an internal toothing
  • Figure 4 is a view similar to Figure 1 with a cup-shaped swash plate
  • Figure 5 is a view similar to Figure 1 with an annular swash plate and a ring gear on the inner edge of the swash plate;
  • Figure 6 a view similar to Figure 1 with a swash plate with a sleeve-shaped wall and internal teeth and
  • FIG. 7 shows a view similar to FIG. 1 with a wall of the swash plate inclined with respect to the axis of rotation of the swash plate and with an axis of rotation of the drive pinion inclined with respect to the axis of rotation of the swash plate.
  • a swash plate pump which is arranged between a drive motor, in particular an electric motor, and the actual pump housing. It is the part in which a rotary movement of the drive motor is converted into a reciprocal stroke movement by at least one pump piston.
  • This intermediate part is housed in a housing 1, which is closed on its underside by a base plate 2.
  • a cage 3 is arranged on this, in which a swash plate 5 is arranged via spherical bearing bodies 4 is rotatably mounted.
  • the swashplate of FIG. 1 is essentially pot-shaped, it has a bottom 6 that runs obliquely to its axis of rotation and an adjoining circular-cylindrical side wall 7 that runs concentrically to the axis of rotation, which has rounded contact surfaces 9 for the spherical bearing bodies 4 on its free edge 8 having.
  • the swash plate 5 is thus rotatably mounted in the housing 1 about a vertical axis of rotation.
  • annular pressure plate 12 On the outside of the inclined base 6, an annular pressure plate 12 is supported via an intermediate ring 10 with spherical bearing bodies 11 captured therein, on which two pistons 13, 14 of a piston pump adjoining the housing 1 on the outside abut. These pistons 13, 14 are guided in a longitudinally displaceable manner in a guide 15 on the upper side of the housing 1 and are pressed by surrounding helical springs 16 via support rings 17 against the pressure plate 12, so that they always bear against this pressure plate and alternately when the pressure plate tumbles pushed out of the housing 1 and pushed back into this.
  • a drive shaft 19 is rotatably mounted in a ball bearing 18 about an axis running parallel to the axis of rotation of the swash plate 5, this drive shaft 19 is driven by an electric motor arranged outside the housing 2 and projects into the interior of the swash plate 5. In this area it carries a drive pinion 20 which meshes with a toothed ring 21 which is molded into the inside of the side wall 7.
  • the swash plate 5 is preferably designed as a deep-drawn part, the toothed ring 21 can already be molded into the side wall 7 during deep-drawing.
  • the swash plate 5 is not pot-shaped, but it has two concentric to each other and concentric to the axis of rotation of the swash plate side walls 22, 23, which are connected to each other via an oblique, annular bottom 24 on which the Pressure plate 12 is supported on the bearing body 11 mounted in the intermediate ring 10. Because two side walls 22, 23 are provided here, there is a greater possibility of variation for the arrangement of the toothed ring 21, this toothed ring 21 can be arranged, for example, as shown in FIG. 3, on the inside of the inner side wall 22, and accordingly the drive pinion 20 is located inside the swashplate.
  • the swash plate 5 is cup-shaped and closed at its lower end by an inclined bottom 6, the storage via the bearing body 4 is thus at the upper edge of the swash plate.
  • the drive pinion 20 meshes with the ring gear 21 on the outside of the side wall 7.
  • the swash plate 5 is annular
  • the ring gear 21 is incorporated into the inner edge of this annular swash plate 5 and thus runs in the plane of the bottom 6 of this swash plate, so inclined to the axis of rotation of the swash plate 5.
  • the drive pinion 21 is mounted within the annular swash plate 5 and extends over a height which is at least as great as the height differences of the inclined ring gear 21, so that the pinion can mesh in all areas of this ring gear.
  • a ring-shaped ring flange connects to the bottom of the annular swash plate 5, into the side wall 7 of which the toothed ring 21 is incorporated in a manner similar to the embodiment of FIGS. 1 and 2, with which the pinion 20 meshes can be formed on the inside, as shown in FIG. 6, or also on the outside, as is the case with the embodiment of FIG. 2.
  • FIG. 7 shows an arrangement which largely corresponds to that of FIG. 1.
  • the side wall 7 does not run parallel to the axis of rotation of the swash plate, but is slightly coaxial with the open side.
  • the axis of rotation of the pinion 20 is inclined relative to the axis of rotation of the swash plate 5, the inclination may be in the order of 5 ° to 15 °, for example.
  • a configuration as shown in FIG. 7 can in principle also be used in other embodiments in which the pinion meshes with a side wall of the swash plate.
  • the pinion and side wall can be inclined with respect to the axis of rotation of the swash plate.
  • the teeth run parallel to the axes of rotation, but it would also be possible to provide helical teeth here in order to prevent the swash plate from lifting off its rotary bearing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe à plateau oscillant, en particulier pour des appareils de nettoyage haute pression. Ladite pompe comprend au moins un piston, appliqué contre un plateau oscillant et entraîné réciproquement autour d'un axe de rotation lors de la rotation dudit plateau, ainsi qu'un entraînement entraînant ce plateau oscillant dans un mouvement de rotation. L'objectif de cette invention est de simplifier la structure de ladite pompe et, en particulier, de réduire son encombrement. A cet effet, ledit entraînement comporte un pignon s'engrenant avec une couronne à denture placée sur ledit plateau oscillant concentriquement à l'axe de rotation.
EP03793714A 2002-08-16 2003-08-09 Pompe a plateau oscillant, en particulier pour appareils de nettoyage haute pression Expired - Fee Related EP1529165B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002137557 DE10237557A1 (de) 2002-08-16 2002-08-16 Taumelscheibenpumpe, insbesondere für Hochdruckreinigungsgeräte
DE10237557 2002-08-16
PCT/EP2003/008874 WO2004022971A1 (fr) 2002-08-16 2003-08-09 Pompe a plateau oscillant, en particulier pour appareils de nettoyage haute pression

Publications (2)

Publication Number Publication Date
EP1529165A1 true EP1529165A1 (fr) 2005-05-11
EP1529165B1 EP1529165B1 (fr) 2006-03-22

Family

ID=30775333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03793714A Expired - Fee Related EP1529165B1 (fr) 2002-08-16 2003-08-09 Pompe a plateau oscillant, en particulier pour appareils de nettoyage haute pression

Country Status (4)

Country Link
EP (1) EP1529165B1 (fr)
AU (1) AU2003255409A1 (fr)
DE (2) DE10237557A1 (fr)
WO (1) WO2004022971A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357084A1 (de) * 2003-12-06 2005-06-30 Ina-Schaeffler Kg Taumelscheibengetriebe
DE102004028044B3 (de) * 2004-06-09 2005-11-17 Ab Skf Lageranordnung
DE102005058072A1 (de) * 2005-12-06 2007-06-14 Schaeffler Kg Taumelscheibengetriebe
DE102005058071A1 (de) * 2005-12-06 2007-06-14 Schaeffler Kg Taumelscheibengetriebe
DE102008025077A1 (de) 2008-05-26 2009-12-10 Ims Gear Gmbh Zahnriemenrad für einen Zahnriemenantrieb
CN111271241A (zh) * 2020-03-03 2020-06-12 上海亿力电器有限公司 适用于内啮合减速传动的高压清洗机电机泵单元

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB675754A (en) * 1948-04-06 1952-07-16 John Gane Shirley Barrow Improvements in or relating to reciprocating pumps
CH297542A (de) * 1951-12-28 1954-03-31 Buehrer Fritz Kolbenpumpe.
US3663122A (en) * 1970-11-25 1972-05-16 Mcneil Corp Axial plunger pump
SE352712B (fr) * 1971-08-03 1973-01-08 K Berg
FR2211090A5 (fr) * 1972-12-14 1974-07-12 Creusot Loire
FR2259254B1 (fr) * 1974-01-30 1979-03-16 Leduc & Fils Rene
DE4106955A1 (de) * 1991-03-05 1992-09-10 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgeraet
DE4320735A1 (de) * 1993-06-23 1995-01-05 Viktor Dr Ing Wilhelm Bewegungswandler für Brennkraftmaschinen und dergleichen
DE19740436A1 (de) * 1997-09-15 1999-03-18 Schaeffler Waelzlager Ohg Taumellager
DE19957568B4 (de) * 1999-11-30 2014-02-13 Linde Hydraulics Gmbh & Co. Kg Anordnung mit einem Schwungrad und einer hydrostatischen Axialkolbenmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004022971A1 *

Also Published As

Publication number Publication date
DE10237557A1 (de) 2004-02-26
WO2004022971A1 (fr) 2004-03-18
DE50302765D1 (de) 2006-05-11
AU2003255409A1 (en) 2004-03-29
EP1529165B1 (fr) 2006-03-22

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