EP0796154B1 - Dispositif de nettoyage a haute pression - Google Patents

Dispositif de nettoyage a haute pression Download PDF

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Publication number
EP0796154B1
EP0796154B1 EP95904437A EP95904437A EP0796154B1 EP 0796154 B1 EP0796154 B1 EP 0796154B1 EP 95904437 A EP95904437 A EP 95904437A EP 95904437 A EP95904437 A EP 95904437A EP 0796154 B1 EP0796154 B1 EP 0796154B1
Authority
EP
European Patent Office
Prior art keywords
motor shaft
cleaning device
pressure cleaning
swash plate
coupling element
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 - Lifetime
Application number
EP95904437A
Other languages
German (de)
English (en)
Other versions
EP0796154A1 (fr
Inventor
Eberhard Veit
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 EP0796154A1 publication Critical patent/EP0796154A1/fr
Application granted granted Critical
Publication of EP0796154B1 publication Critical patent/EP0796154B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • 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
    • F04B1/14—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 having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • F04B1/148—Bearings therefor

Definitions

  • the invention relates to a high-pressure cleaning device with a Piston pump, the pistons of which are driven by an engine Swashplate non-rotatably connected to the motor shaft of the motor are driven by a positive connection non-rotatably connected to a plastic coupling element which is placed on the end of the motor shaft and which one is held in the motor shaft Tie rod is clamped against the front of the motor shaft, wherein the coupling element is attached to the motor shaft Sleeve is.
  • the swashplate is thereby connected to the motor shaft in a rotationally fixed manner, that the motor shaft carries lateral flats and that the swash plate with a complementary central Recess engages over the end of the motor shaft so that the Edges of the recess on the flats of the motor shaft is present.
  • the prerequisite is that the motor shaft lateral flats.
  • the motor shaft must be provided with side flats processed in a special operation, for example by a milling tool. Because the motor shaft in is usually made with a turning tool this is a completely different operation with one different tool, and this additional editing is complex.
  • WO 92/16774 describes a high-pressure cleaning device where a sleeve of the dream disk storage plugged onto a specially machined motor shaft and is tightened by means of a screw.
  • the tie rod additionally the swash plate in the direction of the longitudinal axis of the motor shaft against the coupling element tense. You can do this using a single tie rod the unit from swash plate, coupling element and clamp the motor shaft together.
  • the tie rod can be inserted into the end of the motor shaft screwed-in tension screw.
  • the coupling element two each other has opposite side flats and that these on the longitudinal edges of a central slot in the swashplate.
  • the high pressure cleaning device shown in Figure 1 includes a housing 1 in which an electric motor 2 with a horizontally extending motor shaft 3 arranged is. On her protruding from the electric motor 2 free end, the motor shaft 3 carries a swash plate 4, in which a pressure plate 6 can be rotated via a ball bearing 5 is stored. Pistons 7 are supported on this one in the Drawing not shown piston pump from by the piston 7 surrounding coil springs 8 against the Pressure plate 6 are pressed.
  • the electric motor 2 is located in a motor housing 9, to which the swash plate 4, the pistons 7 and the pump housing 10 surrounding the pump, not shown connects.
  • a transverse wall 11 forms in the transition region the motor housing 9 from a bearing plate in which the supports outer cage 12 of a ball bearing 13, through which the motor shaft 3 is mounted in the transverse wall 11.
  • a plastic sleeve is on the end of the motor shaft 3 14 attached, the bottom 15 of the front side 16 of the Motor shaft 3 abuts and the wall 17 of the motor shaft 3 surrounds close to their peripheral surface.
  • the somewhat thicker bottom 15 of the plastic sleeve 14 carries two opposite, parallel, parallel Flats running to the longitudinal axis of the motor shaft 18, 19, each in a radially projecting step 20 or 21 ends.
  • the bottom 15 of the plastic sleeve is immersed 14 into a complementary, central, elongated Recess 22 of the swash plate 4, so that the Longitudinal edges of the recess 22 close to the flats 18, 19 abut and thus the swash plate 4 rotatably connect the plastic sleeve 14.
  • a tension screw 24 inserted through the in a central internal threaded bore 25 in the end face the motor shaft 3 is screwed in.
  • a tension screw 24 On the tension screw 24 is a metallic, laterally over the head of the tension screw 24 protruding plate 26 attached, this is together with the head of the clamping screw 24 and the immediate adjoining shaft area of the clamping screw 24 molded plastic, so that the clamping screw 24 carries an enlarged plastic head 27 which attaches itself supports the swash plate 4 and this when screwing in Clamping screw 24 in the motor shaft 3 against the steps 20, 21 of the plastic sleeve 14 presses.
  • the Tension screw 24 against the bottom 15 of the plastic sleeve 14 the end face 16 of the motor shaft 3 and thus represents in the system area of the bottom 15 on the end face 16 a frictional connection forth through which the plastic sleeve 14 when rotating the motor shaft 3 is taken along, without the need a positive connection between motor shaft 3 on the one hand and plastic sleeve 14 on the other.
  • the plastic sleeve 14 thus forms a coupling element between Motor shaft and swashplate, which is in the transition area to the motor shaft without form locking. It is therefore not necessary to train the motor shaft in this area a non-circular form fit.
  • the Coupling element can, for example, be made of high-strength high-temperature materials, for example polyphenylene sulfide (PPS), polyphthalamide (PPA), polyaryl ether ketone (PAEK) or consist of thermosets, it is favorable if these Plastics have a Shore hardness> 70 Shore D.
  • PPS polyphenylene sulfide
  • PPA polyphthalamide
  • PAEK polyaryl ether ketone
  • the plastic sleeve 14 bears on its bottom 15 opposite End one training to level 29 radially protruding and circumferential Ring shoulder 30, the level 29 a stop for the inner cage 31 of the ball bearing 13 which forms the Plastic sleeve 14 immediately surrounds.
  • the motor shaft 3 is thus in the ball bearing 13 with the interposition of the plastic sleeve 14 stored.
  • the Plastic sleeve 14 in the longitudinal direction over the section 28 with a smaller outside diameter and also surrounds a part of the motor shaft 3 with a larger outside diameter in the embodiment of Figure 3 is the plastic sleeve 14 trained so short that they only in the section 28 is arranged with a smaller outer diameter.
  • the Ring shoulder 30 carry a metallic outer layer 33, which is formed, for example, by a metal ring 34 is placed on the free end of the plastic sleeve 14 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (5)

  1. Dispositif de nettoyage à haute pression comportant une pompe à pistons dont les pistons sont entraínés par un moteur via une plaque oscillante reliée solidaire en rotation avec l'arbre de moteur, laquelle est reliée solidaire en rotation par une coopération de formes avec un élément d'accouplement (14) en matière plastique, lequel est mis en place du côté de la face frontale sur l'arbre de moteur (3) et est serré contre la face frontale (16) de l'arbre de moteur (3) par une tige d'ancrage (24) maintenue dans l'arbre de moteur, l'élément d'accouplement (14) étant une douille enfichée sur l'arbre de moteur, caractérisé en ce que l'arbre de moteur (3) présente dans la région (28) recouverte par la douille (14) un diamètre extérieur inférieur à celui de la région adjacente, en ce que la douille (14) est serrée contre la face frontale de l'arbre de moteur (3) de section circulaire, en formant une coopération par friction et en ce qu'elle porte à son bord libre un épaulement annulaire (30) périphérique, en saillie sous forme de gradin.
  2. Dispositif de nettoyage à haute pression selon la revendication 1, caractérisé en ce que la tige d'ancrage (24) serre additionnellement la plaque oscillante (4) en direction de l'axe longitudinal de l'arbre de moteur contre l'élément d'accouplement.
  3. Dispositif de nettoyage à haute pression selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que la tige d'ancrage (24) est une vis de serrage vissée du côté de la face frontale dans l'arbre de moteur (3).
  4. Dispositif de nettoyage à haute pression selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément d'accouplement (14) présente deux méplats (18, 19) latéraux opposés l'un à l'autre et en ce que ceux-ci sont en appui sur les arêtes longitudinales d'un trou oblong (22) central dans la plaque oscillante.
  5. Dispositif de nettoyage à haute pression selon la revendication 4, caractérisé en ce que les méplats (18, 19) se terminent dans un gradin (20, 21, respectivement) sur lequel la plaque oscillante (4) est mise en appui par la tige d'ancrage (24).
EP95904437A 1994-12-08 1994-12-08 Dispositif de nettoyage a haute pression Expired - Lifetime EP0796154B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1994/004088 WO1996017694A1 (fr) 1994-12-08 1994-12-08 Dispositif de montage a disque en nutation pour appareil de nettoyage a haute pression

Publications (2)

Publication Number Publication Date
EP0796154A1 EP0796154A1 (fr) 1997-09-24
EP0796154B1 true EP0796154B1 (fr) 1999-03-17

Family

ID=8165923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95904437A Expired - Lifetime EP0796154B1 (fr) 1994-12-08 1994-12-08 Dispositif de nettoyage a haute pression

Country Status (5)

Country Link
US (1) US5934887A (fr)
EP (1) EP0796154B1 (fr)
DE (1) DE59407979D1 (fr)
DK (1) DK0796154T3 (fr)
WO (1) WO1996017694A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1287936B1 (it) * 1996-07-03 1998-08-26 Lavorwash Srl Pompa a pistoni assiali
IT1294447B1 (it) * 1997-07-09 1999-03-24 Annovi E Reverberi S R L Sistema di lubrificazione delle pompe per liquidi ad alta pressione con cilindri ad assi verticali
DE19737540A1 (de) * 1997-08-28 1999-03-04 Schaeffler Waelzlager Ohg Taumelantrieb einer Axialkolbenmaschine
DE19738813B4 (de) * 1997-09-05 2004-05-27 Ina-Schaeffler Kg Axialkolbenmaschine
DE19800680A1 (de) 1998-01-10 1999-07-15 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
US8328522B2 (en) * 2006-09-29 2012-12-11 Pax Scientific, Inc. Axial flow fan
US20090320625A1 (en) * 2008-04-28 2009-12-31 Michael Rogler Kildevaeld Oscillating rotary tool attachment
US8550376B2 (en) * 2009-11-17 2013-10-08 Black & Decker Inc. Paint sprayer
US8740111B2 (en) * 2009-11-17 2014-06-03 Black & Decker Inc. Paint sprayer
WO2011062986A1 (fr) * 2009-11-17 2011-05-26 Black & Decker Inc. Pulvérisateur de peinture
US8413911B2 (en) * 2009-11-17 2013-04-09 Black & Decker Inc. Paint sprayer
WO2011062992A1 (fr) * 2009-11-17 2011-05-26 Black & Decker Inc. Mécanisme à libération rapide pour pistolet à peinture
US8651402B2 (en) * 2009-11-17 2014-02-18 Black & Decker Inc. Adjustable nozzle tip for paint sprayer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2402244A (en) * 1945-02-01 1946-06-18 Robert S Elberty Pump
DE2923284A1 (de) * 1979-06-08 1980-12-11 Wagner Gmbh J Verfahren und vorrichtung zur leistungsregelung von membranpumpen
US4388808A (en) * 1982-02-17 1983-06-21 The United States Of America As Represented By The Secretary Of The Army Swash plate driving means for cryogenic coolers
DE3815427C3 (de) * 1987-05-08 1995-08-31 Lutz Pumpen Gmbh & Co Kg Elektromotor, insbesondere Antriebsmotor für eine Faß- oder Behälterpumpe
WO1992016774A1 (fr) * 1991-03-13 1992-10-01 Ina Wälzlager Schaeffler Kg Palier a nutation
US5632607A (en) * 1995-11-01 1997-05-27 Shurflo Pump Manufacturing Co. Piston and valve arrangement for a wobble plate type pump

Also Published As

Publication number Publication date
WO1996017694A1 (fr) 1996-06-13
US5934887A (en) 1999-08-10
DK0796154T3 (da) 2000-06-05
DE59407979D1 (de) 1999-04-22
EP0796154A1 (fr) 1997-09-24

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